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-rw-r--r--qemu/pixman/test/Makefile.am13
-rw-r--r--qemu/pixman/test/Makefile.sources49
-rw-r--r--qemu/pixman/test/Makefile.win3254
-rw-r--r--qemu/pixman/test/a1-trap-test.c58
-rw-r--r--qemu/pixman/test/affine-test.c324
-rw-r--r--qemu/pixman/test/alpha-loop.c35
-rw-r--r--qemu/pixman/test/alphamap.c315
-rw-r--r--qemu/pixman/test/blitters-test.c399
-rw-r--r--qemu/pixman/test/check-formats.c352
-rw-r--r--qemu/pixman/test/combiner-test.c151
-rw-r--r--qemu/pixman/test/composite-traps-test.c252
-rw-r--r--qemu/pixman/test/composite.c536
-rw-r--r--qemu/pixman/test/fetch-test.c205
-rwxr-xr-xqemu/pixman/test/fuzzer-find-diff.pl75
-rw-r--r--qemu/pixman/test/glyph-test.c332
-rw-r--r--qemu/pixman/test/gradient-crash-test.c158
-rw-r--r--qemu/pixman/test/infinite-loop.c39
-rw-r--r--qemu/pixman/test/lowlevel-blt-bench.c820
-rw-r--r--qemu/pixman/test/matrix-test.c235
-rw-r--r--qemu/pixman/test/oob-test.c101
-rw-r--r--qemu/pixman/test/pdf-op-test.c83
-rw-r--r--qemu/pixman/test/pixel-test.c267
-rw-r--r--qemu/pixman/test/prng-test.c175
-rw-r--r--qemu/pixman/test/radial-perf-test.c58
-rw-r--r--qemu/pixman/test/region-contains-test.c169
-rw-r--r--qemu/pixman/test/region-test.c125
-rw-r--r--qemu/pixman/test/region-translate-test.c30
-rw-r--r--qemu/pixman/test/rotate-test.c120
-rw-r--r--qemu/pixman/test/scaling-bench.c80
-rw-r--r--qemu/pixman/test/scaling-crash-test.c219
-rw-r--r--qemu/pixman/test/scaling-helpers-test.c92
-rw-r--r--qemu/pixman/test/scaling-test.c402
-rw-r--r--qemu/pixman/test/stress-test.c1040
-rw-r--r--qemu/pixman/test/thread-test.c199
-rw-r--r--qemu/pixman/test/trap-crasher.c39
-rw-r--r--qemu/pixman/test/utils-prng.c298
-rw-r--r--qemu/pixman/test/utils-prng.h170
-rw-r--r--qemu/pixman/test/utils.c1618
-rw-r--r--qemu/pixman/test/utils.h247
39 files changed, 9934 insertions, 0 deletions
diff --git a/qemu/pixman/test/Makefile.am b/qemu/pixman/test/Makefile.am
new file mode 100644
index 000000000..88dc36d2a
--- /dev/null
+++ b/qemu/pixman/test/Makefile.am
@@ -0,0 +1,13 @@
+include $(top_srcdir)/test/Makefile.sources
+
+AM_CFLAGS = $(OPENMP_CFLAGS) $(PTHREAD_CFLAGS)
+AM_LDFLAGS = $(OPENMP_CFLAGS) $(TESTPROGS_EXTRA_LDFLAGS) $(PTHREAD_LDFLAGS)
+LDADD = libutils.la $(top_builddir)/pixman/libpixman-1.la -lm $(PNG_LIBS) $(PTHREAD_LIBS)
+AM_CPPFLAGS = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman $(PNG_CFLAGS)
+
+libutils_la_SOURCES = $(libutils_sources) $(libutils_headers)
+
+noinst_LTLIBRARIES = libutils.la
+noinst_PROGRAMS = $(TESTPROGRAMS) $(OTHERPROGRAMS)
+
+TESTS = $(TESTPROGRAMS)
diff --git a/qemu/pixman/test/Makefile.sources b/qemu/pixman/test/Makefile.sources
new file mode 100644
index 000000000..2ae5d9f8d
--- /dev/null
+++ b/qemu/pixman/test/Makefile.sources
@@ -0,0 +1,49 @@
+# Tests (sorted by expected completion time)
+TESTPROGRAMS = \
+ prng-test \
+ a1-trap-test \
+ pdf-op-test \
+ region-test \
+ region-translate-test \
+ combiner-test \
+ pixel-test \
+ fetch-test \
+ rotate-test \
+ oob-test \
+ infinite-loop \
+ trap-crasher \
+ alpha-loop \
+ thread-test \
+ scaling-crash-test \
+ scaling-helpers-test \
+ gradient-crash-test \
+ region-contains-test \
+ alphamap \
+ matrix-test \
+ stress-test \
+ composite-traps-test \
+ blitters-test \
+ glyph-test \
+ scaling-test \
+ affine-test \
+ composite \
+ $(NULL)
+
+# Other programs
+OTHERPROGRAMS = \
+ lowlevel-blt-bench \
+ radial-perf-test \
+ check-formats \
+ scaling-bench \
+ $(NULL)
+
+# Utility functions
+libutils_sources = \
+ utils.c \
+ utils-prng.c \
+ $(NULL)
+
+libutils_headers = \
+ utils.h \
+ utils-prng.h \
+ $(NULL)
diff --git a/qemu/pixman/test/Makefile.win32 b/qemu/pixman/test/Makefile.win32
new file mode 100644
index 000000000..6cfb4a780
--- /dev/null
+++ b/qemu/pixman/test/Makefile.win32
@@ -0,0 +1,54 @@
+default: all
+
+top_srcdir = ..
+include $(top_srcdir)/test/Makefile.sources
+include $(top_srcdir)/Makefile.win32.common
+
+TEST_LDADD = \
+ $(top_builddir)/pixman/$(CFG_VAR)/$(LIBRARY).lib \
+ $(CFG_VAR)/libutils.lib \
+ $(NULL)
+
+libutils_OBJECTS = $(patsubst %.c, $(CFG_VAR)/%.obj, $(libutils_sources))
+
+SOURCES = $(patsubst %, %.c, $(TESTPROGRAMS) $(OTHERPROGRAMS))
+OBJECTS = $(patsubst %.c, $(CFG_VAR)/%.obj, $(SOURCES))
+TESTS = $(patsubst %, $(CFG_VAR)/%.exe, $(TESTPROGRAMS))
+OTHERS = $(patsubst %, $(CFG_VAR)/%.exe, $(OTHERPROGRAMS))
+
+all: pixman inform $(TESTS) $(OTHERS)
+
+check: pixman inform $(TESTS)
+ @failures=0 ; \
+ total=0 ; \
+ for test in $(TESTS) ; \
+ do \
+ total=`expr $$total + 1` ; \
+ if ./$$test ; \
+ then echo "PASS: $$test" ; \
+ else echo "FAIL: $$test" ; \
+ failures=`expr $$failures + 1` ; \
+ fi ; \
+ done ; \
+ if test $$failures -eq 0 ; \
+ then banner="All $$total tests passed" ; \
+ else banner="$$failures of $$total tests failed" ; \
+ fi ; \
+ dashes=`echo "$$banner" | sed s/./=/g`; \
+ echo "$$dashes" ; \
+ echo "$$banner" ; \
+ echo "$$dashes" ; \
+ test $$failures -eq 0
+
+$(CFG_VAR)/libutils.lib: $(libutils_OBJECTS)
+ @$(AR) $(PIXMAN_ARFLAGS) -OUT:$@ $^
+
+$(CFG_VAR)/%.exe: $(CFG_VAR)/%.obj $(TEST_LDADD)
+ @$(LD) $(PIXMAN_LDFLAGS) -OUT:$@ $^
+
+$(top_builddir)/pixman/$(CFG_VAR)/$(LIBRARY).lib: pixman
+
+pixman:
+ @$(MAKE) -C $(top_builddir)/pixman -f Makefile.win32
+
+.PHONY: all check pixman
diff --git a/qemu/pixman/test/a1-trap-test.c b/qemu/pixman/test/a1-trap-test.c
new file mode 100644
index 000000000..c2b488316
--- /dev/null
+++ b/qemu/pixman/test/a1-trap-test.c
@@ -0,0 +1,58 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "utils.h"
+
+int
+main (int argc, char **argv)
+{
+#define WIDTH 20
+#define HEIGHT 20
+
+ pixman_image_t *src_img;
+ pixman_image_t *mask_img;
+ pixman_image_t *dest_img;
+ pixman_trap_t trap;
+ pixman_color_t red = { 0xffff, 0x0000, 0x0000, 0xffff };
+ uint32_t *bits = malloc (WIDTH * HEIGHT * 4);
+ uint32_t *mbits = malloc (WIDTH * HEIGHT);
+
+ memset (mbits, 0, WIDTH * HEIGHT);
+ memset (bits, 0xff, WIDTH * HEIGHT * 4);
+
+ trap.top.l = pixman_double_to_fixed (0.5);
+ trap.top.r = pixman_double_to_fixed (1.5);
+ trap.top.y = pixman_double_to_fixed (0.5);
+
+ trap.bot.l = pixman_double_to_fixed (0.5);
+ trap.bot.r = pixman_double_to_fixed (1.5);
+ trap.bot.y = pixman_double_to_fixed (1.5);
+
+ mask_img = pixman_image_create_bits (
+ PIXMAN_a1, WIDTH, HEIGHT, mbits, WIDTH);
+ src_img = pixman_image_create_solid_fill (&red);
+ dest_img = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, WIDTH, HEIGHT, bits, WIDTH * 4);
+
+ pixman_add_traps (mask_img, 0, 0, 1, &trap);
+
+ pixman_image_composite (PIXMAN_OP_OVER,
+ src_img, mask_img, dest_img,
+ 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+
+ assert (bits[0] == 0xffff0000);
+ assert (bits[1] == 0xffffffff);
+ assert (bits[1 * WIDTH + 0] == 0xffffffff);
+ assert (bits[1 * WIDTH + 1] == 0xffffffff);
+
+ /* The check-formats test depends on operator_name() and format_name() returning
+ * these precise formats, so if those change, check-formats.c must be updated too.
+ */
+ assert (
+ strcmp (operator_name (PIXMAN_OP_DISJOINT_OVER), "PIXMAN_OP_DISJOINT_OVER") == 0);
+ assert (
+ strcmp (format_name (PIXMAN_r5g6b5), "r5g6b5") == 0);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/affine-test.c b/qemu/pixman/test/affine-test.c
new file mode 100644
index 000000000..8e19023a3
--- /dev/null
+++ b/qemu/pixman/test/affine-test.c
@@ -0,0 +1,324 @@
+/*
+ * Test program, which can detect some problems with affine transformations
+ * in pixman. Testing is done by running lots of random SRC and OVER
+ * compositing operations a8r8g8b8, x8a8r8g8b8, r5g6b5 and a8 color formats
+ * with random scaled, rotated and translated transforms.
+ *
+ * Script 'fuzzer-find-diff.pl' can be used to narrow down the problem in
+ * the case of test failure.
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "utils.h"
+
+#define MAX_SRC_WIDTH 16
+#define MAX_SRC_HEIGHT 16
+#define MAX_DST_WIDTH 16
+#define MAX_DST_HEIGHT 16
+#define MAX_STRIDE 4
+
+/*
+ * Composite operation with pseudorandom images
+ */
+uint32_t
+test_composite (int testnum,
+ int verbose)
+{
+ int i;
+ pixman_image_t * src_img;
+ pixman_image_t * dst_img;
+ pixman_transform_t transform;
+ pixman_region16_t clip;
+ int src_width, src_height;
+ int dst_width, dst_height;
+ int src_stride, dst_stride;
+ int src_x, src_y;
+ int dst_x, dst_y;
+ int src_bpp;
+ int dst_bpp;
+ int w, h;
+ pixman_fixed_t scale_x = 65536, scale_y = 65536;
+ pixman_fixed_t translate_x = 0, translate_y = 0;
+ pixman_op_t op;
+ pixman_repeat_t repeat = PIXMAN_REPEAT_NONE;
+ pixman_format_code_t src_fmt, dst_fmt;
+ uint32_t * srcbuf;
+ uint32_t * dstbuf;
+ uint32_t crc32;
+ FLOAT_REGS_CORRUPTION_DETECTOR_START ();
+
+ prng_srand (testnum);
+
+ src_bpp = (prng_rand_n (2) == 0) ? 2 : 4;
+ dst_bpp = (prng_rand_n (2) == 0) ? 2 : 4;
+ op = (prng_rand_n (2) == 0) ? PIXMAN_OP_SRC : PIXMAN_OP_OVER;
+
+ src_width = prng_rand_n (MAX_SRC_WIDTH) + 1;
+ src_height = prng_rand_n (MAX_SRC_HEIGHT) + 1;
+ dst_width = prng_rand_n (MAX_DST_WIDTH) + 1;
+ dst_height = prng_rand_n (MAX_DST_HEIGHT) + 1;
+ src_stride = src_width * src_bpp + prng_rand_n (MAX_STRIDE) * src_bpp;
+ dst_stride = dst_width * dst_bpp + prng_rand_n (MAX_STRIDE) * dst_bpp;
+
+ if (src_stride & 3)
+ src_stride += 2;
+
+ if (dst_stride & 3)
+ dst_stride += 2;
+
+ src_x = -(src_width / 4) + prng_rand_n (src_width * 3 / 2);
+ src_y = -(src_height / 4) + prng_rand_n (src_height * 3 / 2);
+ dst_x = -(dst_width / 4) + prng_rand_n (dst_width * 3 / 2);
+ dst_y = -(dst_height / 4) + prng_rand_n (dst_height * 3 / 2);
+ w = prng_rand_n (dst_width * 3 / 2 - dst_x);
+ h = prng_rand_n (dst_height * 3 / 2 - dst_y);
+
+ srcbuf = (uint32_t *)malloc (src_stride * src_height);
+ dstbuf = (uint32_t *)malloc (dst_stride * dst_height);
+
+ prng_randmemset (srcbuf, src_stride * src_height, 0);
+ prng_randmemset (dstbuf, dst_stride * dst_height, 0);
+
+ if (prng_rand_n (2) == 0)
+ {
+ srcbuf += (src_stride / 4) * (src_height - 1);
+ src_stride = - src_stride;
+ }
+
+ if (prng_rand_n (2) == 0)
+ {
+ dstbuf += (dst_stride / 4) * (dst_height - 1);
+ dst_stride = - dst_stride;
+ }
+
+ src_fmt = src_bpp == 4 ? (prng_rand_n (2) == 0 ?
+ PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
+
+ dst_fmt = dst_bpp == 4 ? (prng_rand_n (2) == 0 ?
+ PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5;
+
+ src_img = pixman_image_create_bits (
+ src_fmt, src_width, src_height, srcbuf, src_stride);
+
+ dst_img = pixman_image_create_bits (
+ dst_fmt, dst_width, dst_height, dstbuf, dst_stride);
+
+ image_endian_swap (src_img);
+ image_endian_swap (dst_img);
+
+ pixman_transform_init_identity (&transform);
+
+ if (prng_rand_n (3) > 0)
+ {
+ scale_x = -65536 * 3 + prng_rand_n (65536 * 6);
+ if (prng_rand_n (2))
+ scale_y = -65536 * 3 + prng_rand_n (65536 * 6);
+ else
+ scale_y = scale_x;
+ pixman_transform_init_scale (&transform, scale_x, scale_y);
+ }
+ if (prng_rand_n (3) > 0)
+ {
+ translate_x = -65536 * 3 + prng_rand_n (6 * 65536);
+ if (prng_rand_n (2))
+ translate_y = -65536 * 3 + prng_rand_n (6 * 65536);
+ else
+ translate_y = translate_x;
+ pixman_transform_translate (&transform, NULL, translate_x, translate_y);
+ }
+
+ if (prng_rand_n (4) > 0)
+ {
+ int c, s, tx = 0, ty = 0;
+ switch (prng_rand_n (4))
+ {
+ case 0:
+ /* 90 degrees */
+ c = 0;
+ s = pixman_fixed_1;
+ tx = pixman_int_to_fixed (MAX_SRC_HEIGHT);
+ break;
+ case 1:
+ /* 180 degrees */
+ c = -pixman_fixed_1;
+ s = 0;
+ tx = pixman_int_to_fixed (MAX_SRC_WIDTH);
+ ty = pixman_int_to_fixed (MAX_SRC_HEIGHT);
+ break;
+ case 2:
+ /* 270 degrees */
+ c = 0;
+ s = -pixman_fixed_1;
+ ty = pixman_int_to_fixed (MAX_SRC_WIDTH);
+ break;
+ default:
+ /* arbitrary rotation */
+ c = prng_rand_n (2 * 65536) - 65536;
+ s = prng_rand_n (2 * 65536) - 65536;
+ break;
+ }
+ pixman_transform_rotate (&transform, NULL, c, s);
+ pixman_transform_translate (&transform, NULL, tx, ty);
+ }
+
+ if (prng_rand_n (8) == 0)
+ {
+ /* Flip random bits */
+ int maxflipcount = 8;
+ while (maxflipcount--)
+ {
+ int i = prng_rand_n (2);
+ int j = prng_rand_n (3);
+ int bitnum = prng_rand_n (32);
+ transform.matrix[i][j] ^= 1 << bitnum;
+ if (prng_rand_n (2))
+ break;
+ }
+ }
+
+ pixman_image_set_transform (src_img, &transform);
+
+ switch (prng_rand_n (4))
+ {
+ case 0:
+ repeat = PIXMAN_REPEAT_NONE;
+ break;
+
+ case 1:
+ repeat = PIXMAN_REPEAT_NORMAL;
+ break;
+
+ case 2:
+ repeat = PIXMAN_REPEAT_PAD;
+ break;
+
+ case 3:
+ repeat = PIXMAN_REPEAT_REFLECT;
+ break;
+
+ default:
+ break;
+ }
+ pixman_image_set_repeat (src_img, repeat);
+
+ if (prng_rand_n (2))
+ pixman_image_set_filter (src_img, PIXMAN_FILTER_NEAREST, NULL, 0);
+ else
+ pixman_image_set_filter (src_img, PIXMAN_FILTER_BILINEAR, NULL, 0);
+
+ if (verbose)
+ {
+#define M(r,c) \
+ transform.matrix[r][c]
+
+ printf ("src_fmt=%s, dst_fmt=%s\n", format_name (src_fmt), format_name (dst_fmt));
+ printf ("op=%s, repeat=%d, transform=\n",
+ operator_name (op), repeat);
+ printf (" { { { 0x%08x, 0x%08x, 0x%08x },\n"
+ " { 0x%08x, 0x%08x, 0x%08x },\n"
+ " { 0x%08x, 0x%08x, 0x%08x },\n"
+ " } };\n",
+ M(0,0), M(0,1), M(0,2),
+ M(1,0), M(1,1), M(1,2),
+ M(2,0), M(2,1), M(2,2));
+ printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n",
+ src_width, src_height, dst_width, dst_height);
+ printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n",
+ src_x, src_y, dst_x, dst_y);
+ printf ("w=%d, h=%d\n", w, h);
+ }
+
+ if (prng_rand_n (8) == 0)
+ {
+ pixman_box16_t clip_boxes[2];
+ int n = prng_rand_n (2) + 1;
+
+ for (i = 0; i < n; i++)
+ {
+ clip_boxes[i].x1 = prng_rand_n (src_width);
+ clip_boxes[i].y1 = prng_rand_n (src_height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + prng_rand_n (src_width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + prng_rand_n (src_height - clip_boxes[i].y1);
+
+ if (verbose)
+ {
+ printf ("source clip box: [%d,%d-%d,%d]\n",
+ clip_boxes[i].x1, clip_boxes[i].y1,
+ clip_boxes[i].x2, clip_boxes[i].y2);
+ }
+ }
+
+ pixman_region_init_rects (&clip, clip_boxes, n);
+ pixman_image_set_clip_region (src_img, &clip);
+ pixman_image_set_source_clipping (src_img, 1);
+ pixman_region_fini (&clip);
+ }
+
+ if (prng_rand_n (8) == 0)
+ {
+ pixman_box16_t clip_boxes[2];
+ int n = prng_rand_n (2) + 1;
+ for (i = 0; i < n; i++)
+ {
+ clip_boxes[i].x1 = prng_rand_n (dst_width);
+ clip_boxes[i].y1 = prng_rand_n (dst_height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + prng_rand_n (dst_width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + prng_rand_n (dst_height - clip_boxes[i].y1);
+
+ if (verbose)
+ {
+ printf ("destination clip box: [%d,%d-%d,%d]\n",
+ clip_boxes[i].x1, clip_boxes[i].y1,
+ clip_boxes[i].x2, clip_boxes[i].y2);
+ }
+ }
+ pixman_region_init_rects (&clip, clip_boxes, n);
+ pixman_image_set_clip_region (dst_img, &clip);
+ pixman_region_fini (&clip);
+ }
+
+ pixman_image_composite (op, src_img, NULL, dst_img,
+ src_x, src_y, 0, 0, dst_x, dst_y, w, h);
+
+ crc32 = compute_crc32_for_image (0, dst_img);
+
+ if (verbose)
+ print_image (dst_img);
+
+ pixman_image_unref (src_img);
+ pixman_image_unref (dst_img);
+
+ if (src_stride < 0)
+ srcbuf += (src_stride / 4) * (src_height - 1);
+
+ if (dst_stride < 0)
+ dstbuf += (dst_stride / 4) * (dst_height - 1);
+
+ free (srcbuf);
+ free (dstbuf);
+
+ FLOAT_REGS_CORRUPTION_DETECTOR_FINISH ();
+ return crc32;
+}
+
+#if BILINEAR_INTERPOLATION_BITS == 7
+#define CHECKSUM 0xBE724CFE
+#elif BILINEAR_INTERPOLATION_BITS == 4
+#define CHECKSUM 0x79BBE501
+#else
+#define CHECKSUM 0x00000000
+#endif
+
+int
+main (int argc, const char *argv[])
+{
+ pixman_disable_out_of_bounds_workaround ();
+
+ return fuzzer_test_main ("affine", 8000000, CHECKSUM,
+ test_composite, argc, argv);
+}
diff --git a/qemu/pixman/test/alpha-loop.c b/qemu/pixman/test/alpha-loop.c
new file mode 100644
index 000000000..4d4384d00
--- /dev/null
+++ b/qemu/pixman/test/alpha-loop.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+
+#define WIDTH 400
+#define HEIGHT 200
+
+int
+main (int argc, char **argv)
+{
+ pixman_image_t *a, *d, *s;
+ uint8_t *alpha;
+ uint32_t *src, *dest;
+
+ prng_srand (0);
+
+ alpha = make_random_bytes (WIDTH * HEIGHT);
+ src = (uint32_t *)make_random_bytes (WIDTH * HEIGHT * 4);
+ dest = (uint32_t *)make_random_bytes (WIDTH * HEIGHT * 4);
+
+ a = pixman_image_create_bits (PIXMAN_a8, WIDTH, HEIGHT, (uint32_t *)alpha, WIDTH);
+ d = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, dest, WIDTH * 4);
+ s = pixman_image_create_bits (PIXMAN_a2r10g10b10, WIDTH, HEIGHT, src, WIDTH * 4);
+
+ fail_after (5, "Infinite loop detected: 5 seconds without progress\n");
+
+ pixman_image_set_alpha_map (s, a, 0, 0);
+ pixman_image_set_alpha_map (a, s, 0, 0);
+
+ pixman_image_composite (PIXMAN_OP_SRC, s, NULL, d, 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+
+ pixman_image_unref (s);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/alphamap.c b/qemu/pixman/test/alphamap.c
new file mode 100644
index 000000000..4d09076fb
--- /dev/null
+++ b/qemu/pixman/test/alphamap.c
@@ -0,0 +1,315 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+
+#define WIDTH 48
+#define HEIGHT 48
+
+static const pixman_format_code_t formats[] =
+{
+ PIXMAN_a8r8g8b8,
+ PIXMAN_a2r10g10b10,
+ PIXMAN_a4r4g4b4,
+ PIXMAN_a8
+};
+
+static const pixman_format_code_t alpha_formats[] =
+{
+ PIXMAN_null,
+ PIXMAN_a8,
+ PIXMAN_a2r10g10b10,
+ PIXMAN_a4r4g4b4
+};
+
+static const int origins[] =
+{
+ 0, 10, -100
+};
+
+static void
+on_destroy (pixman_image_t *image, void *data)
+{
+ uint32_t *bits = pixman_image_get_data (image);
+
+ fence_free (bits);
+}
+
+static pixman_image_t *
+make_image (pixman_format_code_t format)
+{
+ uint32_t *bits;
+ uint8_t bpp = PIXMAN_FORMAT_BPP (format) / 8;
+ pixman_image_t *image;
+
+ bits = (uint32_t *)make_random_bytes (WIDTH * HEIGHT * bpp);
+
+ image = pixman_image_create_bits (format, WIDTH, HEIGHT, bits, WIDTH * bpp);
+
+ if (image && bits)
+ pixman_image_set_destroy_function (image, on_destroy, NULL);
+
+ return image;
+}
+
+static uint8_t
+get_alpha (pixman_image_t *image, int x, int y, int orig_x, int orig_y)
+{
+ uint8_t *bits;
+ uint8_t r;
+
+ if (image->common.alpha_map)
+ {
+ if (x - orig_x >= 0 && x - orig_x < WIDTH &&
+ y - orig_y >= 0 && y - orig_y < HEIGHT)
+ {
+ image = (pixman_image_t *)image->common.alpha_map;
+
+ x -= orig_x;
+ y -= orig_y;
+ }
+ else
+ {
+ return 0;
+ }
+ }
+
+ bits = (uint8_t *)image->bits.bits;
+
+ if (image->bits.format == PIXMAN_a8)
+ {
+ r = bits[y * WIDTH + x];
+ }
+ else if (image->bits.format == PIXMAN_a2r10g10b10)
+ {
+ r = ((uint32_t *)bits)[y * WIDTH + x] >> 30;
+ r |= r << 2;
+ r |= r << 4;
+ }
+ else if (image->bits.format == PIXMAN_a8r8g8b8)
+ {
+ r = ((uint32_t *)bits)[y * WIDTH + x] >> 24;
+ }
+ else if (image->bits.format == PIXMAN_a4r4g4b4)
+ {
+ r = ((uint16_t *)bits)[y * WIDTH + x] >> 12;
+ r |= r << 4;
+ }
+ else
+ {
+ assert (0);
+ }
+
+ return r;
+}
+
+static uint16_t
+get_red (pixman_image_t *image, int x, int y, int orig_x, int orig_y)
+{
+ uint8_t *bits;
+ uint16_t r;
+
+ bits = (uint8_t *)image->bits.bits;
+
+ if (image->bits.format == PIXMAN_a8)
+ {
+ r = 0x00;
+ }
+ else if (image->bits.format == PIXMAN_a2r10g10b10)
+ {
+ r = ((uint32_t *)bits)[y * WIDTH + x] >> 14;
+ r &= 0xffc0;
+ r |= (r >> 10);
+ }
+ else if (image->bits.format == PIXMAN_a8r8g8b8)
+ {
+ r = ((uint32_t *)bits)[y * WIDTH + x] >> 16;
+ r &= 0xff;
+ r |= r << 8;
+ }
+ else if (image->bits.format == PIXMAN_a4r4g4b4)
+ {
+ r = ((uint16_t *)bits)[y * WIDTH + x] >> 8;
+ r &= 0xf;
+ r |= r << 4;
+ r |= r << 8;
+ }
+ else
+ {
+ assert (0);
+ }
+
+ return r;
+}
+
+static int
+run_test (int s, int d, int sa, int da, int soff, int doff)
+{
+ pixman_format_code_t sf = formats[s];
+ pixman_format_code_t df = formats[d];
+ pixman_format_code_t saf = alpha_formats[sa];
+ pixman_format_code_t daf = alpha_formats[da];
+ pixman_image_t *src, *dst, *orig_dst, *alpha, *orig_alpha;
+ pixman_transform_t t1;
+ int j, k;
+ int n_alpha_bits, n_red_bits;
+
+ soff = origins[soff];
+ doff = origins[doff];
+
+ n_alpha_bits = PIXMAN_FORMAT_A (df);
+ if (daf != PIXMAN_null)
+ n_alpha_bits = PIXMAN_FORMAT_A (daf);
+
+ n_red_bits = PIXMAN_FORMAT_R (df);
+
+ /* Source */
+ src = make_image (sf);
+ if (saf != PIXMAN_null)
+ {
+ alpha = make_image (saf);
+ pixman_image_set_alpha_map (src, alpha, soff, soff);
+ pixman_image_unref (alpha);
+ }
+
+ /* Destination */
+ orig_dst = make_image (df);
+ dst = make_image (df);
+ pixman_image_composite (PIXMAN_OP_SRC, orig_dst, NULL, dst,
+ 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+
+ if (daf != PIXMAN_null)
+ {
+ orig_alpha = make_image (daf);
+ alpha = make_image (daf);
+
+ pixman_image_composite (PIXMAN_OP_SRC, orig_alpha, NULL, alpha,
+ 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+
+ pixman_image_set_alpha_map (orig_dst, orig_alpha, doff, doff);
+ pixman_image_set_alpha_map (dst, alpha, doff, doff);
+
+ pixman_image_unref (orig_alpha);
+ pixman_image_unref (alpha);
+ }
+
+ /* Transformations, repeats and filters on destinations should be ignored,
+ * so just set some random ones.
+ */
+ pixman_transform_init_identity (&t1);
+ pixman_transform_scale (&t1, NULL, pixman_int_to_fixed (100), pixman_int_to_fixed (11));
+ pixman_transform_rotate (&t1, NULL, pixman_double_to_fixed (0.5), pixman_double_to_fixed (0.11));
+ pixman_transform_translate (&t1, NULL, pixman_int_to_fixed (11), pixman_int_to_fixed (17));
+
+ pixman_image_set_transform (dst, &t1);
+ pixman_image_set_filter (dst, PIXMAN_FILTER_BILINEAR, NULL, 0);
+ pixman_image_set_repeat (dst, PIXMAN_REPEAT_REFLECT);
+
+ pixman_image_composite (PIXMAN_OP_ADD, src, NULL, dst,
+ 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
+
+ for (j = MAX (doff, 0); j < MIN (HEIGHT, HEIGHT + doff); ++j)
+ {
+ for (k = MAX (doff, 0); k < MIN (WIDTH, WIDTH + doff); ++k)
+ {
+ uint8_t sa, da, oda, refa;
+ uint16_t sr, dr, odr, refr;
+
+ sa = get_alpha (src, k, j, soff, soff);
+ da = get_alpha (dst, k, j, doff, doff);
+ oda = get_alpha (orig_dst, k, j, doff, doff);
+
+ if (sa + oda > 255)
+ refa = 255;
+ else
+ refa = sa + oda;
+
+ if (da >> (8 - n_alpha_bits) != refa >> (8 - n_alpha_bits))
+ {
+ printf ("\nWrong alpha value at (%d, %d). Should be 0x%x; got 0x%x. Source was 0x%x, original dest was 0x%x\n",
+ k, j, refa, da, sa, oda);
+
+ printf ("src: %s, alpha: %s, origin %d %d\ndst: %s, alpha: %s, origin: %d %d\n\n",
+ format_name (sf),
+ format_name (saf),
+ soff, soff,
+ format_name (df),
+ format_name (daf),
+ doff, doff);
+ return 1;
+ }
+
+ /* There are cases where we go through the 8 bit compositing
+ * path even with 10bpc formats. This results in incorrect
+ * results here, so only do the red check for narrow formats
+ */
+ if (n_red_bits <= 8)
+ {
+ sr = get_red (src, k, j, soff, soff);
+ dr = get_red (dst, k, j, doff, doff);
+ odr = get_red (orig_dst, k, j, doff, doff);
+
+ if (sr + odr > 0xffff)
+ refr = 0xffff;
+ else
+ refr = sr + odr;
+
+ if (abs ((dr >> (16 - n_red_bits)) - (refr >> (16 - n_red_bits))) > 1)
+ {
+ printf ("%d red bits\n", n_red_bits);
+ printf ("\nWrong red value at (%d, %d). Should be 0x%x; got 0x%x. Source was 0x%x, original dest was 0x%x\n",
+ k, j, refr, dr, sr, odr);
+
+ printf ("src: %s, alpha: %s, origin %d %d\ndst: %s, alpha: %s, origin: %d %d\n\n",
+ format_name (sf),
+ format_name (saf),
+ soff, soff,
+ format_name (df),
+ format_name (daf),
+ doff, doff);
+ return 1;
+ }
+ }
+ }
+ }
+
+ pixman_image_set_alpha_map (src, NULL, 0, 0);
+ pixman_image_set_alpha_map (dst, NULL, 0, 0);
+ pixman_image_set_alpha_map (orig_dst, NULL, 0, 0);
+
+ pixman_image_unref (src);
+ pixman_image_unref (dst);
+ pixman_image_unref (orig_dst);
+
+ return 0;
+}
+
+int
+main (int argc, char **argv)
+{
+ int i, j, a, b, x, y;
+
+ prng_srand (0);
+
+ for (i = 0; i < ARRAY_LENGTH (formats); ++i)
+ {
+ for (j = 0; j < ARRAY_LENGTH (formats); ++j)
+ {
+ for (a = 0; a < ARRAY_LENGTH (alpha_formats); ++a)
+ {
+ for (b = 0; b < ARRAY_LENGTH (alpha_formats); ++b)
+ {
+ for (x = 0; x < ARRAY_LENGTH (origins); ++x)
+ {
+ for (y = 0; y < ARRAY_LENGTH (origins); ++y)
+ {
+ if (run_test (i, j, a, b, x, y) != 0)
+ return 1;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return 0;
+}
diff --git a/qemu/pixman/test/blitters-test.c b/qemu/pixman/test/blitters-test.c
new file mode 100644
index 000000000..ea03f475d
--- /dev/null
+++ b/qemu/pixman/test/blitters-test.c
@@ -0,0 +1,399 @@
+/*
+ * Test program, which stresses the use of different color formats and
+ * compositing operations.
+ *
+ * Script 'fuzzer-find-diff.pl' can be used to narrow down the problem in
+ * the case of test failure.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include "utils.h"
+
+static pixman_indexed_t rgb_palette[9];
+static pixman_indexed_t y_palette[9];
+
+/* The first eight format in the list are by far the most widely
+ * used formats, so we test those more than the others
+ */
+#define N_MOST_LIKELY_FORMATS 8
+
+/* Create random image for testing purposes */
+static pixman_image_t *
+create_random_image (pixman_format_code_t *allowed_formats,
+ int max_width,
+ int max_height,
+ int max_extra_stride,
+ pixman_format_code_t *used_fmt)
+{
+ int n = 0, width, height, stride;
+ pixman_format_code_t fmt;
+ uint32_t *buf;
+ pixman_image_t *img;
+
+ while (allowed_formats[n] != PIXMAN_null)
+ n++;
+
+ if (n > N_MOST_LIKELY_FORMATS && prng_rand_n (4) != 0)
+ n = N_MOST_LIKELY_FORMATS;
+ fmt = allowed_formats[prng_rand_n (n)];
+
+ width = prng_rand_n (max_width) + 1;
+ height = prng_rand_n (max_height) + 1;
+ stride = (width * PIXMAN_FORMAT_BPP (fmt) + 7) / 8 +
+ prng_rand_n (max_extra_stride + 1);
+ stride = (stride + 3) & ~3;
+
+ /* do the allocation */
+ buf = aligned_malloc (64, stride * height);
+
+ if (prng_rand_n (4) == 0)
+ {
+ /* uniform distribution */
+ prng_randmemset (buf, stride * height, 0);
+ }
+ else
+ {
+ /* significantly increased probability for 0x00 and 0xFF */
+ prng_randmemset (buf, stride * height, RANDMEMSET_MORE_00_AND_FF);
+ }
+
+ /* test negative stride */
+ if (prng_rand_n (4) == 0)
+ {
+ buf += (stride / 4) * (height - 1);
+ stride = - stride;
+ }
+
+ img = pixman_image_create_bits (fmt, width, height, buf, stride);
+
+ if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_COLOR)
+ {
+ pixman_image_set_indexed (img, &(rgb_palette[PIXMAN_FORMAT_BPP (fmt)]));
+ }
+ else if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_GRAY)
+ {
+ pixman_image_set_indexed (img, &(y_palette[PIXMAN_FORMAT_BPP (fmt)]));
+ }
+
+ if (prng_rand_n (16) == 0)
+ pixman_image_set_filter (img, PIXMAN_FILTER_BILINEAR, NULL, 0);
+
+ image_endian_swap (img);
+
+ if (used_fmt) *used_fmt = fmt;
+ return img;
+}
+
+/* Free random image, and optionally update crc32 based on its data */
+static uint32_t
+free_random_image (uint32_t initcrc,
+ pixman_image_t *img,
+ pixman_format_code_t fmt)
+{
+ uint32_t crc32 = 0;
+ uint32_t *data = pixman_image_get_data (img);
+
+ if (fmt != PIXMAN_null)
+ crc32 = compute_crc32_for_image (initcrc, img);
+
+ if (img->bits.rowstride < 0)
+ data += img->bits.rowstride * (img->bits.height - 1);
+
+ pixman_image_unref (img);
+ free (data);
+
+ return crc32;
+}
+
+static pixman_op_t op_list[] = {
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_SATURATE,
+ PIXMAN_OP_DISJOINT_CLEAR,
+ PIXMAN_OP_DISJOINT_SRC,
+ PIXMAN_OP_DISJOINT_DST,
+ PIXMAN_OP_DISJOINT_OVER,
+ PIXMAN_OP_DISJOINT_OVER_REVERSE,
+ PIXMAN_OP_DISJOINT_IN,
+ PIXMAN_OP_DISJOINT_IN_REVERSE,
+ PIXMAN_OP_DISJOINT_OUT,
+ PIXMAN_OP_DISJOINT_OUT_REVERSE,
+ PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_OP_CONJOINT_CLEAR,
+ PIXMAN_OP_CONJOINT_SRC,
+ PIXMAN_OP_CONJOINT_DST,
+ PIXMAN_OP_CONJOINT_OVER,
+ PIXMAN_OP_CONJOINT_OVER_REVERSE,
+ PIXMAN_OP_CONJOINT_IN,
+ PIXMAN_OP_CONJOINT_IN_REVERSE,
+ PIXMAN_OP_CONJOINT_OUT,
+ PIXMAN_OP_CONJOINT_OUT_REVERSE,
+ PIXMAN_OP_CONJOINT_ATOP,
+ PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_OP_CONJOINT_XOR,
+ PIXMAN_OP_MULTIPLY,
+ PIXMAN_OP_SCREEN,
+ PIXMAN_OP_OVERLAY,
+ PIXMAN_OP_DARKEN,
+ PIXMAN_OP_LIGHTEN,
+ PIXMAN_OP_COLOR_DODGE,
+ PIXMAN_OP_COLOR_BURN,
+ PIXMAN_OP_HARD_LIGHT,
+ PIXMAN_OP_DIFFERENCE,
+ PIXMAN_OP_EXCLUSION,
+#if 0 /* these use floating point math and are not always bitexact on different platforms */
+ PIXMAN_OP_SOFT_LIGHT,
+ PIXMAN_OP_HSL_HUE,
+ PIXMAN_OP_HSL_SATURATION,
+ PIXMAN_OP_HSL_COLOR,
+ PIXMAN_OP_HSL_LUMINOSITY,
+#endif
+};
+
+static pixman_format_code_t img_fmt_list[] = {
+ PIXMAN_a8r8g8b8,
+ PIXMAN_a8b8g8r8,
+ PIXMAN_x8r8g8b8,
+ PIXMAN_x8b8g8r8,
+ PIXMAN_r5g6b5,
+ PIXMAN_b5g6r5,
+ PIXMAN_a8,
+ PIXMAN_a1,
+ PIXMAN_r3g3b2,
+ PIXMAN_b8g8r8a8,
+ PIXMAN_b8g8r8x8,
+ PIXMAN_r8g8b8a8,
+ PIXMAN_r8g8b8x8,
+ PIXMAN_x14r6g6b6,
+ PIXMAN_r8g8b8,
+ PIXMAN_b8g8r8,
+#if 0 /* These are going to use floating point in the near future */
+ PIXMAN_x2r10g10b10,
+ PIXMAN_a2r10g10b10,
+ PIXMAN_x2b10g10r10,
+ PIXMAN_a2b10g10r10,
+#endif
+ PIXMAN_a1r5g5b5,
+ PIXMAN_x1r5g5b5,
+ PIXMAN_a1b5g5r5,
+ PIXMAN_x1b5g5r5,
+ PIXMAN_a4r4g4b4,
+ PIXMAN_x4r4g4b4,
+ PIXMAN_a4b4g4r4,
+ PIXMAN_x4b4g4r4,
+ PIXMAN_r3g3b2,
+ PIXMAN_b2g3r3,
+ PIXMAN_a2r2g2b2,
+ PIXMAN_a2b2g2r2,
+ PIXMAN_c8,
+ PIXMAN_g8,
+ PIXMAN_x4c4,
+ PIXMAN_x4g4,
+ PIXMAN_c4,
+ PIXMAN_g4,
+ PIXMAN_g1,
+ PIXMAN_x4a4,
+ PIXMAN_a4,
+ PIXMAN_r1g2b1,
+ PIXMAN_b1g2r1,
+ PIXMAN_a1r1g1b1,
+ PIXMAN_a1b1g1r1,
+ PIXMAN_null
+};
+
+static pixman_format_code_t mask_fmt_list[] = {
+ PIXMAN_a8r8g8b8,
+ PIXMAN_a8,
+ PIXMAN_a4,
+ PIXMAN_a1,
+ PIXMAN_null
+};
+
+
+/*
+ * Composite operation with pseudorandom images
+ */
+uint32_t
+test_composite (int testnum, int verbose)
+{
+ pixman_image_t *src_img = NULL;
+ pixman_image_t *dst_img = NULL;
+ pixman_image_t *mask_img = NULL;
+ int src_width, src_height;
+ int dst_width, dst_height;
+ int src_stride, dst_stride;
+ int src_x, src_y;
+ int dst_x, dst_y;
+ int mask_x, mask_y;
+ int w, h;
+ pixman_op_t op;
+ pixman_format_code_t src_fmt, dst_fmt, mask_fmt;
+ uint32_t *srcbuf, *maskbuf;
+ uint32_t crc32;
+ int max_width, max_height, max_extra_stride;
+ FLOAT_REGS_CORRUPTION_DETECTOR_START ();
+
+ max_width = max_height = 24 + testnum / 10000;
+ max_extra_stride = 4 + testnum / 1000000;
+
+ if (max_width > 256)
+ max_width = 256;
+
+ if (max_height > 16)
+ max_height = 16;
+
+ if (max_extra_stride > 8)
+ max_extra_stride = 8;
+
+ prng_srand (testnum);
+
+ op = op_list[prng_rand_n (ARRAY_LENGTH (op_list))];
+
+ if (prng_rand_n (8))
+ {
+ /* normal image */
+ src_img = create_random_image (img_fmt_list, max_width, max_height,
+ max_extra_stride, &src_fmt);
+ }
+ else
+ {
+ /* solid case */
+ src_img = create_random_image (img_fmt_list, 1, 1,
+ max_extra_stride, &src_fmt);
+
+ pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NORMAL);
+ }
+
+ dst_img = create_random_image (img_fmt_list, max_width, max_height,
+ max_extra_stride, &dst_fmt);
+
+ src_width = pixman_image_get_width (src_img);
+ src_height = pixman_image_get_height (src_img);
+ src_stride = pixman_image_get_stride (src_img);
+
+ dst_width = pixman_image_get_width (dst_img);
+ dst_height = pixman_image_get_height (dst_img);
+ dst_stride = pixman_image_get_stride (dst_img);
+
+ srcbuf = pixman_image_get_data (src_img);
+
+ src_x = prng_rand_n (src_width);
+ src_y = prng_rand_n (src_height);
+ dst_x = prng_rand_n (dst_width);
+ dst_y = prng_rand_n (dst_height);
+
+ mask_img = NULL;
+ mask_fmt = PIXMAN_null;
+ mask_x = 0;
+ mask_y = 0;
+ maskbuf = NULL;
+
+ if ((src_fmt == PIXMAN_x8r8g8b8 || src_fmt == PIXMAN_x8b8g8r8) &&
+ (prng_rand_n (4) == 0))
+ {
+ /* PIXBUF */
+ mask_fmt = prng_rand_n (2) ? PIXMAN_a8r8g8b8 : PIXMAN_a8b8g8r8;
+ mask_img = pixman_image_create_bits (mask_fmt,
+ src_width,
+ src_height,
+ srcbuf,
+ src_stride);
+ mask_x = src_x;
+ mask_y = src_y;
+ maskbuf = srcbuf;
+ }
+ else if (prng_rand_n (2))
+ {
+ if (prng_rand_n (2))
+ {
+ mask_img = create_random_image (mask_fmt_list, max_width, max_height,
+ max_extra_stride, &mask_fmt);
+ }
+ else
+ {
+ /* solid case */
+ mask_img = create_random_image (mask_fmt_list, 1, 1,
+ max_extra_stride, &mask_fmt);
+ pixman_image_set_repeat (mask_img, PIXMAN_REPEAT_NORMAL);
+ }
+
+ if (prng_rand_n (2))
+ pixman_image_set_component_alpha (mask_img, 1);
+
+ mask_x = prng_rand_n (pixman_image_get_width (mask_img));
+ mask_y = prng_rand_n (pixman_image_get_height (mask_img));
+ }
+
+
+ w = prng_rand_n (dst_width - dst_x + 1);
+ h = prng_rand_n (dst_height - dst_y + 1);
+
+ if (verbose)
+ {
+ printf ("op=%s\n", operator_name (op));
+ printf ("src_fmt=%s, dst_fmt=%s, mask_fmt=%s\n",
+ format_name (src_fmt), format_name (dst_fmt),
+ format_name (mask_fmt));
+ printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n",
+ src_width, src_height, dst_width, dst_height);
+ printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n",
+ src_x, src_y, dst_x, dst_y);
+ printf ("src_stride=%d, dst_stride=%d\n",
+ src_stride, dst_stride);
+ printf ("w=%d, h=%d\n", w, h);
+ }
+
+ pixman_image_composite (op, src_img, mask_img, dst_img,
+ src_x, src_y, mask_x, mask_y, dst_x, dst_y, w, h);
+
+ if (verbose)
+ print_image (dst_img);
+
+ free_random_image (0, src_img, PIXMAN_null);
+ crc32 = free_random_image (0, dst_img, dst_fmt);
+
+ if (mask_img)
+ {
+ if (srcbuf == maskbuf)
+ pixman_image_unref(mask_img);
+ else
+ free_random_image (0, mask_img, PIXMAN_null);
+ }
+
+ FLOAT_REGS_CORRUPTION_DETECTOR_FINISH ();
+ return crc32;
+}
+
+int
+main (int argc, const char *argv[])
+{
+ int i;
+
+ prng_srand (0);
+
+ for (i = 1; i <= 8; i++)
+ {
+ initialize_palette (&(rgb_palette[i]), i, TRUE);
+ initialize_palette (&(y_palette[i]), i, FALSE);
+ }
+
+ return fuzzer_test_main("blitters", 2000000,
+ 0xE0A07495,
+ test_composite, argc, argv);
+}
diff --git a/qemu/pixman/test/check-formats.c b/qemu/pixman/test/check-formats.c
new file mode 100644
index 000000000..7edc198c1
--- /dev/null
+++ b/qemu/pixman/test/check-formats.c
@@ -0,0 +1,352 @@
+#include <ctype.h>
+#include "utils.h"
+
+static int
+check_op (pixman_op_t op,
+ pixman_format_code_t src_format,
+ pixman_format_code_t dest_format)
+{
+ uint32_t src_alpha_mask, src_green_mask;
+ uint32_t dest_alpha_mask, dest_green_mask;
+ pixel_checker_t src_checker, dest_checker;
+ pixman_image_t *si, *di;
+ uint32_t sa, sg, da, dg;
+ uint32_t s, d;
+ int retval = 0;
+
+ pixel_checker_init (&src_checker, src_format);
+ pixel_checker_init (&dest_checker, dest_format);
+
+ pixel_checker_get_masks (
+ &src_checker, &src_alpha_mask, NULL, &src_green_mask, NULL);
+ pixel_checker_get_masks (
+ &dest_checker, &dest_alpha_mask, NULL, &dest_green_mask, NULL);
+
+ /* printf ("masks: %x %x %x %x\n", */
+ /* src_alpha_mask, src_green_mask, */
+ /* dest_alpha_mask, dest_green_mask); */
+
+ si = pixman_image_create_bits (src_format, 1, 1, &s, 4);
+ di = pixman_image_create_bits (dest_format, 1, 1, &d, 4);
+
+ sa = 0;
+ do
+ {
+ sg = 0;
+ do
+ {
+ da = 0;
+ do
+ {
+ dg = 0;
+ do
+ {
+ color_t src_color, dest_color, result_color;
+ uint32_t orig_d;
+
+ s = sa | sg;
+ d = da | dg;
+
+ orig_d = d;
+
+ pixel_checker_convert_pixel_to_color (&src_checker, s, &src_color);
+ pixel_checker_convert_pixel_to_color (&dest_checker, d, &dest_color);
+
+ do_composite (op, &src_color, NULL, &dest_color, &result_color, FALSE);
+
+
+ if (!is_little_endian())
+ {
+ s <<= 32 - PIXMAN_FORMAT_BPP (src_format);
+ d <<= 32 - PIXMAN_FORMAT_BPP (dest_format);
+ }
+
+ pixman_image_composite32 (op, si, NULL, di,
+ 0, 0, 0, 0, 0, 0, 1, 1);
+
+ if (!is_little_endian())
+ d >>= (32 - PIXMAN_FORMAT_BPP (dest_format));
+
+ if (!pixel_checker_check (&dest_checker, d, &result_color))
+ {
+ printf ("---- test failed ----\n");
+ printf ("operator: %-32s\n", operator_name (op));
+ printf ("source: %-12s pixel: %08x\n", format_name (src_format), s);
+ printf ("dest: %-12s pixel: %08x\n", format_name (dest_format), orig_d);
+ printf ("got: %-12s pixel: %08x\n", format_name (dest_format), d);
+
+ retval = 1;
+ }
+
+ dg -= dest_green_mask;
+ dg &= dest_green_mask;
+ }
+ while (dg != 0);
+
+ da -= dest_alpha_mask;
+ da &= dest_alpha_mask;
+ }
+ while (da != 0);
+
+ sg -= src_green_mask;
+ sg &= src_green_mask;
+ }
+ while (sg != 0);
+
+ sa -= src_alpha_mask;
+ sa &= src_alpha_mask;
+ }
+ while (sa != 0);
+
+ pixman_image_unref (si);
+ pixman_image_unref (di);
+
+ return retval;
+}
+
+static const pixman_op_t op_list[] =
+{
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_SATURATE,
+
+ PIXMAN_OP_DISJOINT_CLEAR,
+ PIXMAN_OP_DISJOINT_SRC,
+ PIXMAN_OP_DISJOINT_DST,
+ PIXMAN_OP_DISJOINT_OVER,
+ PIXMAN_OP_DISJOINT_OVER_REVERSE,
+ PIXMAN_OP_DISJOINT_IN,
+ PIXMAN_OP_DISJOINT_IN_REVERSE,
+ PIXMAN_OP_DISJOINT_OUT,
+ PIXMAN_OP_DISJOINT_OUT_REVERSE,
+ PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_OP_DISJOINT_XOR,
+
+ PIXMAN_OP_CONJOINT_CLEAR,
+ PIXMAN_OP_CONJOINT_SRC,
+ PIXMAN_OP_CONJOINT_DST,
+ PIXMAN_OP_CONJOINT_OVER,
+ PIXMAN_OP_CONJOINT_OVER_REVERSE,
+ PIXMAN_OP_CONJOINT_IN,
+ PIXMAN_OP_CONJOINT_IN_REVERSE,
+ PIXMAN_OP_CONJOINT_OUT,
+ PIXMAN_OP_CONJOINT_OUT_REVERSE,
+ PIXMAN_OP_CONJOINT_ATOP,
+ PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_OP_CONJOINT_XOR,
+};
+
+static const pixman_format_code_t format_list[] =
+{
+ PIXMAN_a8r8g8b8,
+ PIXMAN_x8r8g8b8,
+ PIXMAN_a8b8g8r8,
+ PIXMAN_x8b8g8r8,
+ PIXMAN_b8g8r8a8,
+ PIXMAN_b8g8r8x8,
+ PIXMAN_r8g8b8a8,
+ PIXMAN_r8g8b8x8,
+ PIXMAN_x14r6g6b6,
+ PIXMAN_x2r10g10b10,
+ PIXMAN_a2r10g10b10,
+ PIXMAN_x2b10g10r10,
+ PIXMAN_a2b10g10r10,
+ PIXMAN_a8r8g8b8_sRGB,
+ PIXMAN_r8g8b8,
+ PIXMAN_b8g8r8,
+ PIXMAN_r5g6b5,
+ PIXMAN_b5g6r5,
+ PIXMAN_a1r5g5b5,
+ PIXMAN_x1r5g5b5,
+ PIXMAN_a1b5g5r5,
+ PIXMAN_x1b5g5r5,
+ PIXMAN_a4r4g4b4,
+ PIXMAN_x4r4g4b4,
+ PIXMAN_a4b4g4r4,
+ PIXMAN_x4b4g4r4,
+ PIXMAN_a8,
+ PIXMAN_r3g3b2,
+ PIXMAN_b2g3r3,
+ PIXMAN_a2r2g2b2,
+ PIXMAN_a2b2g2r2,
+ PIXMAN_x4a4,
+ PIXMAN_a4,
+ PIXMAN_r1g2b1,
+ PIXMAN_b1g2r1,
+ PIXMAN_a1r1g1b1,
+ PIXMAN_a1b1g1r1,
+ PIXMAN_a1,
+};
+
+static pixman_format_code_t
+format_from_string (const char *s)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_LENGTH (format_list); ++i)
+ {
+ if (strcasecmp (format_name (format_list[i]), s) == 0)
+ return format_list[i];
+ }
+
+ return PIXMAN_null;
+}
+
+static void
+emit (const char *s, int *n_chars)
+{
+ *n_chars += printf ("%s,", s);
+ if (*n_chars > 60)
+ {
+ printf ("\n ");
+ *n_chars = 0;
+ }
+ else
+ {
+ printf (" ");
+ (*n_chars)++;
+ }
+}
+
+static void
+list_formats (void)
+{
+ int n_chars;
+ int i;
+
+ printf ("Formats:\n ");
+
+ n_chars = 0;
+ for (i = 0; i < ARRAY_LENGTH (format_list); ++i)
+ emit (format_name (format_list[i]), &n_chars);
+
+ printf ("\n\n");
+}
+
+static void
+list_operators (void)
+{
+ char short_name [128] = { 0 };
+ int i, n_chars;
+
+ printf ("Operators:\n ");
+
+ n_chars = 0;
+ for (i = 0; i < ARRAY_LENGTH (op_list); ++i)
+ {
+ pixman_op_t op = op_list[i];
+ int j;
+
+ snprintf (short_name, sizeof (short_name) - 1, "%s",
+ operator_name (op) + strlen ("PIXMAN_OP_"));
+
+ for (j = 0; short_name[j] != '\0'; ++j)
+ short_name[j] = tolower (short_name[j]);
+
+ emit (short_name, &n_chars);
+ }
+
+ printf ("\n\n");
+}
+
+static pixman_op_t
+operator_from_string (const char *s)
+{
+ char full_name[128] = { 0 };
+ int i;
+
+ snprintf (full_name, (sizeof full_name) - 1, "PIXMAN_OP_%s", s);
+
+ for (i = 0; i < ARRAY_LENGTH (op_list); ++i)
+ {
+ pixman_op_t op = op_list[i];
+
+ if (strcasecmp (operator_name (op), full_name) == 0)
+ return op;
+ }
+
+ return PIXMAN_OP_NONE;
+}
+
+int
+main (int argc, char **argv)
+{
+ enum { OPTION_OP, OPTION_SRC, OPTION_DEST, LAST_OPTION } option;
+ pixman_format_code_t src_fmt, dest_fmt;
+ pixman_op_t op;
+
+ op = PIXMAN_OP_NONE;
+ src_fmt = PIXMAN_null;
+ dest_fmt = PIXMAN_null;
+
+ argc--;
+ argv++;
+
+ for (option = OPTION_OP; option < LAST_OPTION; ++option)
+ {
+ char *arg = NULL;
+
+ if (argc)
+ {
+ argc--;
+ arg = *argv++;
+ }
+
+ switch (option)
+ {
+ case OPTION_OP:
+ if (!arg)
+ printf (" - missing operator\n");
+ else if ((op = operator_from_string (arg)) == PIXMAN_OP_NONE)
+ printf (" - unknown operator %s\n", arg);
+ break;
+
+ case OPTION_SRC:
+ if (!arg)
+ printf (" - missing source format\n");
+ else if ((src_fmt = format_from_string (arg)) == PIXMAN_null)
+ printf (" - unknown source format %s\n", arg);
+ break;
+
+ case OPTION_DEST:
+ if (!arg)
+ printf (" - missing destination format\n");
+ else if ((dest_fmt = format_from_string (arg)) == PIXMAN_null)
+ printf (" - unknown destination format %s\n", arg);
+ break;
+
+ default:
+ assert (0);
+ break;
+ }
+ }
+
+ while (argc--)
+ {
+ op = PIXMAN_OP_NONE;
+ printf (" - unexpected argument: %s\n", *argv++);
+ }
+
+ if (op == PIXMAN_OP_NONE || src_fmt == PIXMAN_null || dest_fmt == PIXMAN_null)
+ {
+ printf ("\nUsage:\n check-formats <operator> <src-format> <dest-format>\n\n");
+ list_operators();
+ list_formats();
+
+ return -1;
+ }
+
+ return check_op (op, src_fmt, dest_fmt);
+}
diff --git a/qemu/pixman/test/combiner-test.c b/qemu/pixman/test/combiner-test.c
new file mode 100644
index 000000000..01f63a56e
--- /dev/null
+++ b/qemu/pixman/test/combiner-test.c
@@ -0,0 +1,151 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+#include <sys/types.h>
+#include "pixman-private.h"
+
+static const pixman_op_t op_list[] =
+{
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_SATURATE,
+ PIXMAN_OP_DISJOINT_CLEAR,
+ PIXMAN_OP_DISJOINT_SRC,
+ PIXMAN_OP_DISJOINT_DST,
+ PIXMAN_OP_DISJOINT_OVER,
+ PIXMAN_OP_DISJOINT_OVER_REVERSE,
+ PIXMAN_OP_DISJOINT_IN,
+ PIXMAN_OP_DISJOINT_IN_REVERSE,
+ PIXMAN_OP_DISJOINT_OUT,
+ PIXMAN_OP_DISJOINT_OUT_REVERSE,
+ PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_OP_CONJOINT_CLEAR,
+ PIXMAN_OP_CONJOINT_SRC,
+ PIXMAN_OP_CONJOINT_DST,
+ PIXMAN_OP_CONJOINT_OVER,
+ PIXMAN_OP_CONJOINT_OVER_REVERSE,
+ PIXMAN_OP_CONJOINT_IN,
+ PIXMAN_OP_CONJOINT_IN_REVERSE,
+ PIXMAN_OP_CONJOINT_OUT,
+ PIXMAN_OP_CONJOINT_OUT_REVERSE,
+ PIXMAN_OP_CONJOINT_ATOP,
+ PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_OP_CONJOINT_XOR,
+ PIXMAN_OP_MULTIPLY,
+ PIXMAN_OP_SCREEN,
+ PIXMAN_OP_OVERLAY,
+ PIXMAN_OP_DARKEN,
+ PIXMAN_OP_LIGHTEN,
+ PIXMAN_OP_COLOR_DODGE,
+ PIXMAN_OP_COLOR_BURN,
+ PIXMAN_OP_HARD_LIGHT,
+ PIXMAN_OP_DIFFERENCE,
+ PIXMAN_OP_EXCLUSION,
+ PIXMAN_OP_SOFT_LIGHT,
+ PIXMAN_OP_HSL_HUE,
+ PIXMAN_OP_HSL_SATURATION,
+ PIXMAN_OP_HSL_COLOR,
+ PIXMAN_OP_HSL_LUMINOSITY,
+};
+
+static float
+rand_float (void)
+{
+ uint32_t u = prng_rand();
+
+ return *(float *)&u;
+}
+
+static void
+random_floats (argb_t *argb, int width)
+{
+ int i;
+
+ for (i = 0; i < width; ++i)
+ {
+ argb_t *p = argb + i;
+
+ p->a = rand_float();
+ p->r = rand_float();
+ p->g = rand_float();
+ p->b = rand_float();
+ }
+}
+
+#define WIDTH 512
+
+static pixman_combine_float_func_t
+lookup_combiner (pixman_implementation_t *imp, pixman_op_t op,
+ pixman_bool_t component_alpha)
+{
+ pixman_combine_float_func_t f;
+
+ do
+ {
+ if (component_alpha)
+ f = imp->combine_float_ca[op];
+ else
+ f = imp->combine_float[op];
+
+ imp = imp->fallback;
+ }
+ while (!f);
+
+ return f;
+}
+
+int
+main ()
+{
+ pixman_implementation_t *impl;
+ argb_t *src_bytes = malloc (WIDTH * sizeof (argb_t));
+ argb_t *mask_bytes = malloc (WIDTH * sizeof (argb_t));
+ argb_t *dest_bytes = malloc (WIDTH * sizeof (argb_t));
+ int i;
+
+ enable_divbyzero_exceptions();
+
+ impl = _pixman_internal_only_get_implementation();
+
+ prng_srand (0);
+
+ for (i = 0; i < ARRAY_LENGTH (op_list); ++i)
+ {
+ pixman_op_t op = op_list[i];
+ pixman_combine_float_func_t combiner;
+ int ca;
+
+ for (ca = 0; ca < 2; ++ca)
+ {
+ combiner = lookup_combiner (impl, op, ca);
+
+ random_floats (src_bytes, WIDTH);
+ random_floats (mask_bytes, WIDTH);
+ random_floats (dest_bytes, WIDTH);
+
+ combiner (impl, op,
+ (float *)dest_bytes,
+ (float *)mask_bytes,
+ (float *)src_bytes,
+ WIDTH);
+ }
+ }
+
+ return 0;
+}
diff --git a/qemu/pixman/test/composite-traps-test.c b/qemu/pixman/test/composite-traps-test.c
new file mode 100644
index 000000000..86a035564
--- /dev/null
+++ b/qemu/pixman/test/composite-traps-test.c
@@ -0,0 +1,252 @@
+/* Based loosely on scaling-test */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "utils.h"
+
+#define MAX_SRC_WIDTH 48
+#define MAX_SRC_HEIGHT 48
+#define MAX_DST_WIDTH 48
+#define MAX_DST_HEIGHT 48
+#define MAX_STRIDE 4
+
+static pixman_format_code_t formats[] =
+{
+ PIXMAN_a8r8g8b8, PIXMAN_a8, PIXMAN_r5g6b5, PIXMAN_a1, PIXMAN_a4
+};
+
+static pixman_format_code_t mask_formats[] =
+{
+ PIXMAN_a1, PIXMAN_a4, PIXMAN_a8,
+};
+
+static pixman_op_t operators[] =
+{
+ PIXMAN_OP_OVER, PIXMAN_OP_ADD, PIXMAN_OP_SRC, PIXMAN_OP_IN
+};
+
+#define RANDOM_ELT(array) \
+ ((array)[prng_rand_n(ARRAY_LENGTH((array)))])
+
+static void
+destroy_bits (pixman_image_t *image, void *data)
+{
+ fence_free (data);
+}
+
+static pixman_fixed_t
+random_fixed (int n)
+{
+ return prng_rand_n (n << 16);
+}
+
+/*
+ * Composite operation with pseudorandom images
+ */
+uint32_t
+test_composite (int testnum,
+ int verbose)
+{
+ int i;
+ pixman_image_t * src_img;
+ pixman_image_t * dst_img;
+ pixman_region16_t clip;
+ int dst_width, dst_height;
+ int dst_stride;
+ int dst_x, dst_y;
+ int dst_bpp;
+ pixman_op_t op;
+ uint32_t * dst_bits;
+ uint32_t crc32;
+ pixman_format_code_t mask_format, dst_format;
+ pixman_trapezoid_t *traps;
+ int src_x, src_y;
+ int n_traps;
+
+ static pixman_color_t colors[] =
+ {
+ { 0xffff, 0xffff, 0xffff, 0xffff },
+ { 0x0000, 0x0000, 0x0000, 0x0000 },
+ { 0xabcd, 0xabcd, 0x0000, 0xabcd },
+ { 0x0000, 0x0000, 0x0000, 0xffff },
+ { 0x0101, 0x0101, 0x0101, 0x0101 },
+ { 0x7777, 0x6666, 0x5555, 0x9999 },
+ };
+
+ FLOAT_REGS_CORRUPTION_DETECTOR_START ();
+
+ prng_srand (testnum);
+
+ op = RANDOM_ELT (operators);
+ mask_format = RANDOM_ELT (mask_formats);
+
+ /* Create source image */
+
+ if (prng_rand_n (4) == 0)
+ {
+ src_img = pixman_image_create_solid_fill (
+ &(colors[prng_rand_n (ARRAY_LENGTH (colors))]));
+
+ src_x = 10;
+ src_y = 234;
+ }
+ else
+ {
+ pixman_format_code_t src_format = RANDOM_ELT(formats);
+ int src_bpp = (PIXMAN_FORMAT_BPP (src_format) + 7) / 8;
+ int src_width = prng_rand_n (MAX_SRC_WIDTH) + 1;
+ int src_height = prng_rand_n (MAX_SRC_HEIGHT) + 1;
+ int src_stride = src_width * src_bpp + prng_rand_n (MAX_STRIDE) * src_bpp;
+ uint32_t *bits, *orig;
+
+ src_x = -(src_width / 4) + prng_rand_n (src_width * 3 / 2);
+ src_y = -(src_height / 4) + prng_rand_n (src_height * 3 / 2);
+
+ src_stride = (src_stride + 3) & ~3;
+
+ orig = bits = (uint32_t *)make_random_bytes (src_stride * src_height);
+
+ if (prng_rand_n (2) == 0)
+ {
+ bits += (src_stride / 4) * (src_height - 1);
+ src_stride = - src_stride;
+ }
+
+ src_img = pixman_image_create_bits (
+ src_format, src_width, src_height, bits, src_stride);
+
+ pixman_image_set_destroy_function (src_img, destroy_bits, orig);
+
+ if (prng_rand_n (8) == 0)
+ {
+ pixman_box16_t clip_boxes[2];
+ int n = prng_rand_n (2) + 1;
+
+ for (i = 0; i < n; i++)
+ {
+ clip_boxes[i].x1 = prng_rand_n (src_width);
+ clip_boxes[i].y1 = prng_rand_n (src_height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + prng_rand_n (src_width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + prng_rand_n (src_height - clip_boxes[i].y1);
+
+ if (verbose)
+ {
+ printf ("source clip box: [%d,%d-%d,%d]\n",
+ clip_boxes[i].x1, clip_boxes[i].y1,
+ clip_boxes[i].x2, clip_boxes[i].y2);
+ }
+ }
+
+ pixman_region_init_rects (&clip, clip_boxes, n);
+ pixman_image_set_clip_region (src_img, &clip);
+ pixman_image_set_source_clipping (src_img, 1);
+ pixman_region_fini (&clip);
+ }
+
+ image_endian_swap (src_img);
+ }
+
+ /* Create destination image */
+ {
+ dst_format = RANDOM_ELT(formats);
+ dst_bpp = (PIXMAN_FORMAT_BPP (dst_format) + 7) / 8;
+ dst_width = prng_rand_n (MAX_DST_WIDTH) + 1;
+ dst_height = prng_rand_n (MAX_DST_HEIGHT) + 1;
+ dst_stride = dst_width * dst_bpp + prng_rand_n (MAX_STRIDE) * dst_bpp;
+ dst_stride = (dst_stride + 3) & ~3;
+
+ dst_bits = (uint32_t *)make_random_bytes (dst_stride * dst_height);
+
+ if (prng_rand_n (2) == 0)
+ {
+ dst_bits += (dst_stride / 4) * (dst_height - 1);
+ dst_stride = - dst_stride;
+ }
+
+ dst_x = -(dst_width / 4) + prng_rand_n (dst_width * 3 / 2);
+ dst_y = -(dst_height / 4) + prng_rand_n (dst_height * 3 / 2);
+
+ dst_img = pixman_image_create_bits (
+ dst_format, dst_width, dst_height, dst_bits, dst_stride);
+
+ image_endian_swap (dst_img);
+ }
+
+ /* Create traps */
+ {
+ int i;
+
+ n_traps = prng_rand_n (25);
+ traps = fence_malloc (n_traps * sizeof (pixman_trapezoid_t));
+
+ for (i = 0; i < n_traps; ++i)
+ {
+ pixman_trapezoid_t *t = &(traps[i]);
+
+ t->top = random_fixed (MAX_DST_HEIGHT) - MAX_DST_HEIGHT / 2;
+ t->bottom = t->top + random_fixed (MAX_DST_HEIGHT);
+ t->left.p1.x = random_fixed (MAX_DST_WIDTH) - MAX_DST_WIDTH / 2;
+ t->left.p1.y = t->top - random_fixed (50);
+ t->left.p2.x = random_fixed (MAX_DST_WIDTH) - MAX_DST_WIDTH / 2;
+ t->left.p2.y = t->bottom + random_fixed (50);
+ t->right.p1.x = t->left.p1.x + random_fixed (MAX_DST_WIDTH);
+ t->right.p1.y = t->top - random_fixed (50);
+ t->right.p2.x = t->left.p2.x + random_fixed (MAX_DST_WIDTH);
+ t->right.p2.y = t->bottom - random_fixed (50);
+ }
+ }
+
+ if (prng_rand_n (8) == 0)
+ {
+ pixman_box16_t clip_boxes[2];
+ int n = prng_rand_n (2) + 1;
+ for (i = 0; i < n; i++)
+ {
+ clip_boxes[i].x1 = prng_rand_n (dst_width);
+ clip_boxes[i].y1 = prng_rand_n (dst_height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + prng_rand_n (dst_width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + prng_rand_n (dst_height - clip_boxes[i].y1);
+
+ if (verbose)
+ {
+ printf ("destination clip box: [%d,%d-%d,%d]\n",
+ clip_boxes[i].x1, clip_boxes[i].y1,
+ clip_boxes[i].x2, clip_boxes[i].y2);
+ }
+ }
+ pixman_region_init_rects (&clip, clip_boxes, n);
+ pixman_image_set_clip_region (dst_img, &clip);
+ pixman_region_fini (&clip);
+ }
+
+ pixman_composite_trapezoids (op, src_img, dst_img, mask_format,
+ src_x, src_y, dst_x, dst_y, n_traps, traps);
+
+ crc32 = compute_crc32_for_image (0, dst_img);
+
+ if (verbose)
+ print_image (dst_img);
+
+ if (dst_stride < 0)
+ dst_bits += (dst_stride / 4) * (dst_height - 1);
+
+ fence_free (dst_bits);
+
+ pixman_image_unref (src_img);
+ pixman_image_unref (dst_img);
+ fence_free (traps);
+
+ FLOAT_REGS_CORRUPTION_DETECTOR_FINISH ();
+ return crc32;
+}
+
+int
+main (int argc, const char *argv[])
+{
+ return fuzzer_test_main("composite traps", 40000, 0xAF41D210,
+ test_composite, argc, argv);
+}
diff --git a/qemu/pixman/test/composite.c b/qemu/pixman/test/composite.c
new file mode 100644
index 000000000..9e51a8f65
--- /dev/null
+++ b/qemu/pixman/test/composite.c
@@ -0,0 +1,536 @@
+/*
+ * Copyright © 2005 Eric Anholt
+ * Copyright © 2009 Chris Wilson
+ * Copyright © 2010 Soeren Sandmann
+ * Copyright © 2010 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Eric Anholt not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Eric Anholt makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ERIC ANHOLT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h> /* abort() */
+#include <math.h>
+#include <time.h>
+#include "utils.h"
+
+typedef struct image_t image_t;
+
+static const color_t colors[] =
+{
+ { 1.0, 1.0, 1.0, 1.0 },
+ { 1.0, 1.0, 1.0, 0.0 },
+ { 0.0, 0.0, 0.0, 1.0 },
+ { 0.0, 0.0, 0.0, 0.0 },
+ { 1.0, 0.0, 0.0, 1.0 },
+ { 0.0, 1.0, 0.0, 1.0 },
+ { 0.0, 0.0, 1.0, 1.0 },
+ { 0.5, 0.0, 0.0, 0.5 },
+};
+
+static uint16_t
+_color_double_to_short (double d)
+{
+ uint32_t i;
+
+ i = (uint32_t) (d * 65536);
+ i -= (i >> 16);
+
+ return i;
+}
+
+static void
+compute_pixman_color (const color_t *color,
+ pixman_color_t *out)
+{
+ out->red = _color_double_to_short (color->r);
+ out->green = _color_double_to_short (color->g);
+ out->blue = _color_double_to_short (color->b);
+ out->alpha = _color_double_to_short (color->a);
+}
+
+#define REPEAT 0x01000000
+#define FLAGS 0xff000000
+
+static const int sizes[] =
+{
+ 0,
+ 1,
+ 1 | REPEAT,
+ 10
+};
+
+static const pixman_format_code_t formats[] =
+{
+ /* 32 bpp formats */
+ PIXMAN_a8r8g8b8,
+ PIXMAN_x8r8g8b8,
+ PIXMAN_a8b8g8r8,
+ PIXMAN_x8b8g8r8,
+ PIXMAN_b8g8r8a8,
+ PIXMAN_b8g8r8x8,
+ PIXMAN_r8g8b8a8,
+ PIXMAN_r8g8b8x8,
+ PIXMAN_x2r10g10b10,
+ PIXMAN_x2b10g10r10,
+ PIXMAN_a2r10g10b10,
+ PIXMAN_a2b10g10r10,
+
+ /* sRGB formats */
+ PIXMAN_a8r8g8b8_sRGB,
+
+ /* 24 bpp formats */
+ PIXMAN_r8g8b8,
+ PIXMAN_b8g8r8,
+ PIXMAN_r5g6b5,
+ PIXMAN_b5g6r5,
+
+ /* 16 bpp formats */
+ PIXMAN_x1r5g5b5,
+ PIXMAN_x1b5g5r5,
+ PIXMAN_a1r5g5b5,
+ PIXMAN_a1b5g5r5,
+ PIXMAN_a4b4g4r4,
+ PIXMAN_x4b4g4r4,
+ PIXMAN_a4r4g4b4,
+ PIXMAN_x4r4g4b4,
+
+ /* 8 bpp formats */
+ PIXMAN_a8,
+ PIXMAN_r3g3b2,
+ PIXMAN_b2g3r3,
+ PIXMAN_a2r2g2b2,
+ PIXMAN_a2b2g2r2,
+ PIXMAN_x4a4,
+
+ /* 4 bpp formats */
+ PIXMAN_a4,
+ PIXMAN_r1g2b1,
+ PIXMAN_b1g2r1,
+ PIXMAN_a1r1g1b1,
+ PIXMAN_a1b1g1r1,
+
+ /* 1 bpp formats */
+ PIXMAN_a1,
+};
+
+struct image_t
+{
+ pixman_image_t *image;
+ pixman_format_code_t format;
+ const color_t *color;
+ pixman_repeat_t repeat;
+ int size;
+};
+
+static const pixman_op_t operators[] =
+{
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_SATURATE,
+
+ PIXMAN_OP_DISJOINT_CLEAR,
+ PIXMAN_OP_DISJOINT_SRC,
+ PIXMAN_OP_DISJOINT_DST,
+ PIXMAN_OP_DISJOINT_OVER,
+ PIXMAN_OP_DISJOINT_OVER_REVERSE,
+ PIXMAN_OP_DISJOINT_IN,
+ PIXMAN_OP_DISJOINT_IN_REVERSE,
+ PIXMAN_OP_DISJOINT_OUT,
+ PIXMAN_OP_DISJOINT_OUT_REVERSE,
+ PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_OP_DISJOINT_XOR,
+
+ PIXMAN_OP_CONJOINT_CLEAR,
+ PIXMAN_OP_CONJOINT_SRC,
+ PIXMAN_OP_CONJOINT_DST,
+ PIXMAN_OP_CONJOINT_OVER,
+ PIXMAN_OP_CONJOINT_OVER_REVERSE,
+ PIXMAN_OP_CONJOINT_IN,
+ PIXMAN_OP_CONJOINT_IN_REVERSE,
+ PIXMAN_OP_CONJOINT_OUT,
+ PIXMAN_OP_CONJOINT_OUT_REVERSE,
+ PIXMAN_OP_CONJOINT_ATOP,
+ PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_OP_CONJOINT_XOR,
+};
+
+static uint32_t
+get_value (pixman_image_t *image)
+{
+ uint32_t value = *(uint32_t *)pixman_image_get_data (image);
+
+#ifdef WORDS_BIGENDIAN
+ {
+ pixman_format_code_t format = pixman_image_get_format (image);
+ value >>= 8 * sizeof(value) - PIXMAN_FORMAT_BPP (format);
+ }
+#endif
+
+ return value;
+}
+
+static char *
+describe_image (image_t *info, char *buf)
+{
+ if (info->size)
+ {
+ sprintf (buf, "%s, %dx%d%s",
+ format_name (info->format),
+ info->size, info->size,
+ info->repeat ? " R" :"");
+ }
+ else
+ {
+ sprintf (buf, "solid");
+ }
+
+ return buf;
+}
+
+static char *
+describe_color (const color_t *color, char *buf)
+{
+ sprintf (buf, "%.3f %.3f %.3f %.3f",
+ color->r, color->g, color->b, color->a);
+
+ return buf;
+}
+
+static pixman_bool_t
+composite_test (image_t *dst,
+ pixman_op_t op,
+ image_t *src,
+ image_t *mask,
+ pixman_bool_t component_alpha,
+ int testno)
+{
+ color_t expected, tdst, tsrc, tmsk;
+ pixel_checker_t checker;
+
+ if (mask)
+ {
+ pixman_image_set_component_alpha (mask->image, component_alpha);
+
+ pixman_image_composite (op, src->image, mask->image, dst->image,
+ 0, 0, 0, 0, 0, 0, dst->size, dst->size);
+ }
+ else
+ {
+ pixman_image_composite (op, src->image, NULL, dst->image,
+ 0, 0,
+ 0, 0,
+ 0, 0,
+ dst->size, dst->size);
+ }
+
+ tdst = *dst->color;
+ tsrc = *src->color;
+
+ if (mask)
+ {
+ tmsk = *mask->color;
+ }
+
+ /* It turns out that by construction all source, mask etc. colors are
+ * linear because they are made from fills, and fills are always in linear
+ * color space. However, if they have been converted to bitmaps, we need
+ * to simulate the sRGB approximation to pass the test cases.
+ */
+ if (src->size)
+ {
+ if (PIXMAN_FORMAT_TYPE (src->format) == PIXMAN_TYPE_ARGB_SRGB)
+ {
+ tsrc.r = convert_linear_to_srgb (tsrc.r);
+ tsrc.g = convert_linear_to_srgb (tsrc.g);
+ tsrc.b = convert_linear_to_srgb (tsrc.b);
+ round_color (src->format, &tsrc);
+ tsrc.r = convert_srgb_to_linear (tsrc.r);
+ tsrc.g = convert_srgb_to_linear (tsrc.g);
+ tsrc.b = convert_srgb_to_linear (tsrc.b);
+ }
+ else
+ {
+ round_color (src->format, &tsrc);
+ }
+ }
+
+ if (mask && mask->size)
+ {
+ if (PIXMAN_FORMAT_TYPE (mask->format) == PIXMAN_TYPE_ARGB_SRGB)
+ {
+ tmsk.r = convert_linear_to_srgb (tmsk.r);
+ tmsk.g = convert_linear_to_srgb (tmsk.g);
+ tmsk.b = convert_linear_to_srgb (tmsk.b);
+ round_color (mask->format, &tmsk);
+ tmsk.r = convert_srgb_to_linear (tmsk.r);
+ tmsk.g = convert_srgb_to_linear (tmsk.g);
+ tmsk.b = convert_srgb_to_linear (tmsk.b);
+ }
+ else
+ {
+ round_color (mask->format, &tmsk);
+ }
+ }
+
+ if (mask)
+ {
+ if (component_alpha && PIXMAN_FORMAT_R (mask->format) == 0)
+ {
+ /* Ax component-alpha masks expand alpha into
+ * all color channels.
+ */
+ tmsk.r = tmsk.g = tmsk.b = tmsk.a;
+ }
+ }
+
+ if (PIXMAN_FORMAT_TYPE (dst->format) == PIXMAN_TYPE_ARGB_SRGB)
+ {
+ tdst.r = convert_linear_to_srgb (tdst.r);
+ tdst.g = convert_linear_to_srgb (tdst.g);
+ tdst.b = convert_linear_to_srgb (tdst.b);
+ round_color (dst->format, &tdst);
+ tdst.r = convert_srgb_to_linear (tdst.r);
+ tdst.g = convert_srgb_to_linear (tdst.g);
+ tdst.b = convert_srgb_to_linear (tdst.b);
+ }
+ else
+ {
+ round_color (dst->format, &tdst);
+ }
+
+ do_composite (op,
+ &tsrc,
+ mask? &tmsk : NULL,
+ &tdst,
+ &expected,
+ component_alpha);
+
+ pixel_checker_init (&checker, dst->format);
+
+ if (!pixel_checker_check (&checker, get_value (dst->image), &expected))
+ {
+ char buf[40], buf2[40];
+ int a, r, g, b;
+ uint32_t pixel;
+
+ printf ("---- Test %d failed ----\n", testno);
+ printf ("Operator: %s %s\n",
+ operator_name (op), component_alpha ? "CA" : "");
+
+ printf ("Source: %s\n", describe_image (src, buf));
+ if (mask != NULL)
+ printf ("Mask: %s\n", describe_image (mask, buf));
+
+ printf ("Destination: %s\n\n", describe_image (dst, buf));
+ printf (" R G B A Rounded\n");
+ printf ("Source color: %s %s\n",
+ describe_color (src->color, buf),
+ describe_color (&tsrc, buf2));
+ if (mask)
+ {
+ printf ("Mask color: %s %s\n",
+ describe_color (mask->color, buf),
+ describe_color (&tmsk, buf2));
+ }
+ printf ("Dest. color: %s %s\n",
+ describe_color (dst->color, buf),
+ describe_color (&tdst, buf2));
+
+ pixel = get_value (dst->image);
+
+ printf ("Expected: %s\n", describe_color (&expected, buf));
+
+ pixel_checker_split_pixel (&checker, pixel, &a, &r, &g, &b);
+
+ printf ("Got: %5d %5d %5d %5d [pixel: 0x%08x]\n", r, g, b, a, pixel);
+ pixel_checker_get_min (&checker, &expected, &a, &r, &g, &b);
+ printf ("Min accepted: %5d %5d %5d %5d\n", r, g, b, a);
+ pixel_checker_get_max (&checker, &expected, &a, &r, &g, &b);
+ printf ("Max accepted: %5d %5d %5d %5d\n", r, g, b, a);
+
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static void
+image_init (image_t *info,
+ int color,
+ int format,
+ int size)
+{
+ pixman_color_t fill;
+
+ info->color = &colors[color];
+ compute_pixman_color (info->color, &fill);
+
+ info->format = formats[format];
+ info->size = sizes[size] & ~FLAGS;
+ info->repeat = PIXMAN_REPEAT_NONE;
+
+ if (info->size)
+ {
+ pixman_image_t *solid;
+
+ info->image = pixman_image_create_bits (info->format,
+ info->size, info->size,
+ NULL, 0);
+
+ solid = pixman_image_create_solid_fill (&fill);
+ pixman_image_composite32 (PIXMAN_OP_SRC, solid, NULL, info->image,
+ 0, 0, 0, 0, 0, 0, info->size, info->size);
+ pixman_image_unref (solid);
+
+ if (sizes[size] & REPEAT)
+ {
+ pixman_image_set_repeat (info->image, PIXMAN_REPEAT_NORMAL);
+ info->repeat = PIXMAN_REPEAT_NORMAL;
+ }
+ }
+ else
+ {
+ info->image = pixman_image_create_solid_fill (&fill);
+ }
+}
+
+static void
+image_fini (image_t *info)
+{
+ pixman_image_unref (info->image);
+}
+
+static int
+random_size (void)
+{
+ return prng_rand_n (ARRAY_LENGTH (sizes));
+}
+
+static int
+random_color (void)
+{
+ return prng_rand_n (ARRAY_LENGTH (colors));
+}
+
+static int
+random_format (void)
+{
+ return prng_rand_n (ARRAY_LENGTH (formats));
+}
+
+static pixman_bool_t
+run_test (uint32_t seed)
+{
+ image_t src, mask, dst;
+ pixman_op_t op;
+ int ca;
+ int ok;
+
+ prng_srand (seed);
+
+ image_init (&dst, random_color(), random_format(), 1);
+ image_init (&src, random_color(), random_format(), random_size());
+ image_init (&mask, random_color(), random_format(), random_size());
+
+ op = operators [prng_rand_n (ARRAY_LENGTH (operators))];
+
+ ca = prng_rand_n (3);
+
+ switch (ca)
+ {
+ case 0:
+ ok = composite_test (&dst, op, &src, NULL, FALSE, seed);
+ break;
+ case 1:
+ ok = composite_test (&dst, op, &src, &mask, FALSE, seed);
+ break;
+ case 2:
+ ok = composite_test (&dst, op, &src, &mask,
+ mask.size? TRUE : FALSE, seed);
+ break;
+ default:
+ ok = FALSE;
+ break;
+ }
+
+ image_fini (&src);
+ image_fini (&mask);
+ image_fini (&dst);
+
+ return ok;
+}
+
+int
+main (int argc, char **argv)
+{
+#define N_TESTS (8 * 1024 * 1024)
+ int result = 0;
+ uint32_t seed;
+ int32_t i;
+
+ if (argc > 1)
+ {
+ char *end;
+
+ i = strtol (argv[1], &end, 0);
+
+ if (end != argv[1])
+ {
+ if (!run_test (i))
+ return 1;
+ else
+ return 0;
+ }
+ else
+ {
+ printf ("Usage:\n\n %s <number>\n\n", argv[0]);
+ return -1;
+ }
+ }
+
+ if (getenv ("PIXMAN_RANDOMIZE_TESTS"))
+ seed = get_random_seed();
+ else
+ seed = 1;
+
+#ifdef USE_OPENMP
+# pragma omp parallel for default(none) shared(result, argv, seed)
+#endif
+ for (i = 0; i <= N_TESTS; ++i)
+ {
+ if (!result && !run_test (i + seed))
+ {
+ printf ("Test 0x%08X failed.\n", seed + i);
+
+ result = seed + i;
+ }
+ }
+
+ return result;
+}
diff --git a/qemu/pixman/test/fetch-test.c b/qemu/pixman/test/fetch-test.c
new file mode 100644
index 000000000..04e8cc583
--- /dev/null
+++ b/qemu/pixman/test/fetch-test.c
@@ -0,0 +1,205 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "utils.h"
+
+#define SIZE 1024
+
+static pixman_indexed_t mono_palette =
+{
+ 0, { 0x00000000, 0x00ffffff },
+};
+
+
+typedef struct {
+ pixman_format_code_t format;
+ int width, height;
+ int stride;
+ uint32_t src[SIZE];
+ uint32_t dst[SIZE];
+ pixman_indexed_t *indexed;
+} testcase_t;
+
+static testcase_t testcases[] =
+{
+ {
+ PIXMAN_a8r8g8b8,
+ 2, 2,
+ 8,
+ { 0x00112233, 0x44556677,
+ 0x8899aabb, 0xccddeeff },
+ { 0x00112233, 0x44556677,
+ 0x8899aabb, 0xccddeeff },
+ NULL,
+ },
+ {
+ PIXMAN_r8g8b8a8,
+ 2, 2,
+ 8,
+ { 0x11223300, 0x55667744,
+ 0x99aabb88, 0xddeeffcc },
+ { 0x00112233, 0x44556677,
+ 0x8899aabb, 0xccddeeff },
+ NULL,
+ },
+ {
+ PIXMAN_g1,
+ 8, 2,
+ 4,
+#ifdef WORDS_BIGENDIAN
+ {
+ 0xaa000000,
+ 0x55000000
+ },
+#else
+ {
+ 0x00000055,
+ 0x000000aa
+ },
+#endif
+ {
+ 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000,
+ 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff
+ },
+ &mono_palette,
+ },
+#if 0
+ {
+ PIXMAN_g8,
+ 4, 2,
+ 4,
+ { 0x01234567,
+ 0x89abcdef },
+ { 0x00010101, 0x00232323, 0x00454545, 0x00676767,
+ 0x00898989, 0x00ababab, 0x00cdcdcd, 0x00efefef, },
+ },
+#endif
+ /* FIXME: make this work on big endian */
+ {
+ PIXMAN_yv12,
+ 8, 2,
+ 8,
+#ifdef WORDS_BIGENDIAN
+ {
+ 0x00ff00ff, 0x00ff00ff,
+ 0xff00ff00, 0xff00ff00,
+ 0x80ff8000,
+ 0x800080ff
+ },
+#else
+ {
+ 0xff00ff00, 0xff00ff00,
+ 0x00ff00ff, 0x00ff00ff,
+ 0x0080ff80,
+ 0xff800080
+ },
+#endif
+ {
+ 0xff000000, 0xffffffff, 0xffb80000, 0xffffe113,
+ 0xff000000, 0xffffffff, 0xff0023ee, 0xff4affff,
+ 0xffffffff, 0xff000000, 0xffffe113, 0xffb80000,
+ 0xffffffff, 0xff000000, 0xff4affff, 0xff0023ee,
+ },
+ },
+};
+
+int n_test_cases = ARRAY_LENGTH (testcases);
+
+
+static uint32_t
+reader (const void *src, int size)
+{
+ switch (size)
+ {
+ case 1:
+ return *(uint8_t *)src;
+ case 2:
+ return *(uint16_t *)src;
+ case 4:
+ return *(uint32_t *)src;
+ default:
+ assert(0);
+ return 0; /* silence MSVC */
+ }
+}
+
+
+static void
+writer (void *src, uint32_t value, int size)
+{
+ switch (size)
+ {
+ case 1:
+ *(uint8_t *)src = value;
+ break;
+ case 2:
+ *(uint16_t *)src = value;
+ break;
+ case 4:
+ *(uint32_t *)src = value;
+ break;
+ default:
+ assert(0);
+ }
+}
+
+
+int
+main (int argc, char **argv)
+{
+ uint32_t dst[SIZE];
+ pixman_image_t *src_img;
+ pixman_image_t *dst_img;
+ int i, j, x, y;
+ int ret = 0;
+
+ for (i = 0; i < n_test_cases; ++i)
+ {
+ for (j = 0; j < 2; ++j)
+ {
+ src_img = pixman_image_create_bits (testcases[i].format,
+ testcases[i].width,
+ testcases[i].height,
+ testcases[i].src,
+ testcases[i].stride);
+ pixman_image_set_indexed(src_img, testcases[i].indexed);
+
+ dst_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
+ testcases[i].width,
+ testcases[i].height,
+ dst,
+ testcases[i].width*4);
+
+ if (j)
+ {
+ pixman_image_set_accessors (src_img, reader, writer);
+ pixman_image_set_accessors (dst_img, reader, writer);
+ }
+
+ pixman_image_composite (PIXMAN_OP_SRC, src_img, NULL, dst_img,
+ 0, 0, 0, 0, 0, 0, testcases[i].width, testcases[i].height);
+
+ pixman_image_unref (src_img);
+ pixman_image_unref (dst_img);
+
+ for (y = 0; y < testcases[i].height; ++y)
+ {
+ for (x = 0; x < testcases[i].width; ++x)
+ {
+ int offset = y * testcases[i].width + x;
+
+ if (dst[offset] != testcases[i].dst[offset])
+ {
+ printf ("test %i%c: pixel mismatch at (x=%d,y=%d): %08x expected, %08x obtained\n",
+ i + 1, 'a' + j,
+ x, y,
+ testcases[i].dst[offset], dst[offset]);
+ ret = 1;
+ }
+ }
+ }
+ }
+ }
+
+ return ret;
+}
diff --git a/qemu/pixman/test/fuzzer-find-diff.pl b/qemu/pixman/test/fuzzer-find-diff.pl
new file mode 100755
index 000000000..e1d67fbf7
--- /dev/null
+++ b/qemu/pixman/test/fuzzer-find-diff.pl
@@ -0,0 +1,75 @@
+#!/usr/bin/env perl
+
+$usage = "Usage:
+ fuzzer-find-diff.pl reference_binary new_binary [number_of_tests_to_run]
+
+The first two input arguments are the commands to run the test programs
+based on fuzzer_test_main() function from 'util.c' (preferably they should
+be statically compiled, this can be achieved via '--disable-shared' pixman
+configure option). The third optional argument is the number of test rounds
+to run (if not specified, then testing runs infinitely or until some problem
+is detected).
+
+Usage examples:
+ fuzzer-find-diff.pl ./blitters-test-with-sse-disabled ./blitters-test 9000000
+ fuzzer-find-diff.pl ./blitters-test \"ssh ppc64_host /path/to/blitters-test\"
+";
+
+$#ARGV >= 1 or die $usage;
+
+$batch_size = 10000;
+
+if ($#ARGV >= 2) {
+ $number_of_tests = int($ARGV[2]);
+} else {
+ $number_of_tests = -1
+}
+
+sub test_range {
+ my $min = shift;
+ my $max = shift;
+
+ # check that [$min, $max] range is "bad", otherwise return
+ if (`$ARGV[0] $min $max 2>/dev/null` eq `$ARGV[1] $min $max 2>/dev/null`) {
+ return;
+ }
+
+ # check that $min itself is "good", otherwise return
+ if (`$ARGV[0] $min 2>/dev/null` ne `$ARGV[1] $min 2>/dev/null`) {
+ return $min;
+ }
+
+ # start bisecting
+ while ($max != $min + 1) {
+ my $avg = int(($min + $max) / 2);
+ my $res1 = `$ARGV[0] $min $avg 2>/dev/null`;
+ my $res2 = `$ARGV[1] $min $avg 2>/dev/null`;
+ if ($res1 ne $res2) {
+ $max = $avg;
+ } else {
+ $min = $avg;
+ }
+ }
+ return $max;
+}
+
+$base = 1;
+while ($number_of_tests <= 0 || $base <= $number_of_tests) {
+ printf("testing %-12d\r", $base + $batch_size - 1);
+ my $res = test_range($base, $base + $batch_size - 1);
+ if ($res) {
+ printf("Failure: results are different for test %d:\n", $res);
+
+ printf("\n-- ref --\n");
+ print `$ARGV[0] $res`;
+ printf("-- new --\n");
+ print `$ARGV[1] $res`;
+
+ printf("The problematic conditions can be reproduced by running:\n");
+ printf("$ARGV[1] %d\n", $res);
+
+ exit(1);
+ }
+ $base += $batch_size;
+}
+printf("Success: %d tests finished\n", $base - 1);
diff --git a/qemu/pixman/test/glyph-test.c b/qemu/pixman/test/glyph-test.c
new file mode 100644
index 000000000..1811add73
--- /dev/null
+++ b/qemu/pixman/test/glyph-test.c
@@ -0,0 +1,332 @@
+#include <stdlib.h>
+#include "utils.h"
+
+static const pixman_format_code_t glyph_formats[] =
+{
+ PIXMAN_a8r8g8b8,
+ PIXMAN_a8,
+ PIXMAN_a4,
+ PIXMAN_a1,
+ PIXMAN_x8r8g8b8,
+ PIXMAN_r3g3b2,
+ PIXMAN_null,
+};
+
+static const pixman_format_code_t formats[] =
+{
+ PIXMAN_a8r8g8b8,
+ PIXMAN_a8b8g8r8,
+ PIXMAN_x8r8g8b8,
+ PIXMAN_x8b8g8r8,
+ PIXMAN_r5g6b5,
+ PIXMAN_b5g6r5,
+ PIXMAN_a8,
+ PIXMAN_a1,
+ PIXMAN_r3g3b2,
+ PIXMAN_b8g8r8a8,
+ PIXMAN_b8g8r8x8,
+ PIXMAN_r8g8b8a8,
+ PIXMAN_r8g8b8x8,
+ PIXMAN_x14r6g6b6,
+ PIXMAN_r8g8b8,
+ PIXMAN_b8g8r8,
+#if 0
+ /* These use floating point */
+ PIXMAN_x2r10g10b10,
+ PIXMAN_a2r10g10b10,
+ PIXMAN_x2b10g10r10,
+ PIXMAN_a2b10g10r10,
+#endif
+ PIXMAN_a1r5g5b5,
+ PIXMAN_x1r5g5b5,
+ PIXMAN_a1b5g5r5,
+ PIXMAN_x1b5g5r5,
+ PIXMAN_a4r4g4b4,
+ PIXMAN_x4r4g4b4,
+ PIXMAN_a4b4g4r4,
+ PIXMAN_x4b4g4r4,
+ PIXMAN_r3g3b2,
+ PIXMAN_b2g3r3,
+ PIXMAN_a2r2g2b2,
+ PIXMAN_a2b2g2r2,
+ PIXMAN_x4a4,
+ PIXMAN_a4,
+ PIXMAN_r1g2b1,
+ PIXMAN_b1g2r1,
+ PIXMAN_a1r1g1b1,
+ PIXMAN_a1b1g1r1,
+ PIXMAN_null,
+};
+
+static const pixman_op_t operators[] =
+{
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD
+};
+
+enum
+{
+ ALLOW_CLIPPED = (1 << 0),
+ ALLOW_ALPHA_MAP = (1 << 1),
+ ALLOW_SOURCE_CLIPPING = (1 << 2),
+ ALLOW_REPEAT = (1 << 3),
+ ALLOW_SOLID = (1 << 4),
+ ALLOW_FENCED_MEMORY = (1 << 5),
+};
+
+static void
+destroy_fenced (pixman_image_t *image, void *data)
+{
+ fence_free (data);
+}
+
+static void
+destroy_malloced (pixman_image_t *image, void *data)
+{
+ free (data);
+}
+
+static pixman_format_code_t
+random_format (const pixman_format_code_t *formats)
+{
+ int i;
+ i = 0;
+ while (formats[i] != PIXMAN_null)
+ ++i;
+ return formats[prng_rand_n (i)];
+}
+
+static pixman_image_t *
+create_image (int max_size, const pixman_format_code_t *formats, uint32_t flags)
+{
+ int width, height;
+ pixman_image_t *image;
+ pixman_format_code_t format;
+ uint32_t *data;
+ int bpp;
+ int stride;
+ int i;
+ pixman_image_destroy_func_t destroy;
+
+ if ((flags & ALLOW_SOLID) && prng_rand_n (4) == 0)
+ {
+ pixman_color_t color;
+
+ color.alpha = prng_rand();
+ color.red = prng_rand();
+ color.green = prng_rand();
+ color.blue = prng_rand();
+
+ return pixman_image_create_solid_fill (&color);
+ }
+
+ width = prng_rand_n (max_size) + 1;
+ height = prng_rand_n (max_size) + 1;
+ format = random_format (formats);
+
+ bpp = PIXMAN_FORMAT_BPP (format);
+ stride = (width * bpp + 7) / 8 + prng_rand_n (17);
+ stride = (stride + 3) & ~3;
+
+ if (prng_rand_n (64) == 0)
+ {
+ if (!(data = (uint32_t *)make_random_bytes (stride * height)))
+ {
+ fprintf (stderr, "Out of memory\n");
+ abort ();
+ }
+ destroy = destroy_fenced;
+ }
+ else
+ {
+ data = malloc (stride * height);
+ prng_randmemset (data, height * stride, 0);
+ destroy = destroy_malloced;
+ }
+
+ image = pixman_image_create_bits (format, width, height, data, stride);
+ pixman_image_set_destroy_function (image, destroy, data);
+
+ if ((flags & ALLOW_CLIPPED) && prng_rand_n (8) == 0)
+ {
+ pixman_box16_t clip_boxes[8];
+ pixman_region16_t clip;
+ int n = prng_rand_n (8) + 1;
+
+ for (i = 0; i < n; i++)
+ {
+ clip_boxes[i].x1 = prng_rand_n (width);
+ clip_boxes[i].y1 = prng_rand_n (height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + prng_rand_n (width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + prng_rand_n (height - clip_boxes[i].y1);
+ }
+
+ pixman_region_init_rects (&clip, clip_boxes, n);
+ pixman_image_set_clip_region (image, &clip);
+ pixman_region_fini (&clip);
+ }
+
+ if ((flags & ALLOW_SOURCE_CLIPPING) && prng_rand_n (4) == 0)
+ {
+ pixman_image_set_source_clipping (image, TRUE);
+ pixman_image_set_has_client_clip (image, TRUE);
+ }
+
+ if ((flags & ALLOW_ALPHA_MAP) && prng_rand_n (16) == 0)
+ {
+ pixman_image_t *alpha_map;
+ int alpha_x, alpha_y;
+
+ alpha_x = prng_rand_n (width);
+ alpha_y = prng_rand_n (height);
+ alpha_map =
+ create_image (max_size, formats, (flags & ~(ALLOW_ALPHA_MAP | ALLOW_SOLID)));
+ pixman_image_set_alpha_map (image, alpha_map, alpha_x, alpha_y);
+ pixman_image_unref (alpha_map);
+ }
+
+ if ((flags & ALLOW_REPEAT) && prng_rand_n (2) == 0)
+ pixman_image_set_repeat (image, prng_rand_n (4));
+
+ image_endian_swap (image);
+
+ return image;
+}
+
+#define KEY1(p) ((void *)(((uintptr_t)p) ^ (0xa7e23dfaUL)))
+#define KEY2(p) ((void *)(((uintptr_t)p) ^ (0xabcd9876UL)))
+
+#define MAX_GLYPHS 32
+
+uint32_t
+test_glyphs (int testnum, int verbose)
+{
+ pixman_image_t *glyph_images[MAX_GLYPHS];
+ pixman_glyph_t glyphs[4 * MAX_GLYPHS];
+ uint32_t crc32 = 0;
+ pixman_image_t *source, *dest;
+ int n_glyphs, i;
+ pixman_glyph_cache_t *cache;
+
+ prng_srand (testnum);
+
+ cache = pixman_glyph_cache_create ();
+
+ source = create_image (300, formats,
+ ALLOW_CLIPPED | ALLOW_ALPHA_MAP |
+ ALLOW_SOURCE_CLIPPING |
+ ALLOW_REPEAT | ALLOW_SOLID);
+
+ dest = create_image (128, formats,
+ ALLOW_CLIPPED | ALLOW_ALPHA_MAP |
+ ALLOW_SOURCE_CLIPPING);
+
+ pixman_glyph_cache_freeze (cache);
+
+ n_glyphs = prng_rand_n (MAX_GLYPHS);
+ for (i = 0; i < n_glyphs; ++i)
+ glyph_images[i] = create_image (32, glyph_formats, 0);
+
+ for (i = 0; i < 4 * n_glyphs; ++i)
+ {
+ int g = prng_rand_n (n_glyphs);
+ pixman_image_t *glyph_img = glyph_images[g];
+ void *key1 = KEY1 (glyph_img);
+ void *key2 = KEY2 (glyph_img);
+ const void *glyph;
+
+ if (!(glyph = pixman_glyph_cache_lookup (cache, key1, key2)))
+ {
+ glyph =
+ pixman_glyph_cache_insert (cache, key1, key2, 5, 8, glyph_img);
+ }
+
+ glyphs[i].glyph = glyph;
+ glyphs[i].x = prng_rand_n (128);
+ glyphs[i].y = prng_rand_n (128);
+ }
+
+ if (prng_rand_n (2) == 0)
+ {
+ int src_x = prng_rand_n (300) - 150;
+ int src_y = prng_rand_n (300) - 150;
+ int mask_x = prng_rand_n (64) - 32;
+ int mask_y = prng_rand_n (64) - 32;
+ int dest_x = prng_rand_n (64) - 32;
+ int dest_y = prng_rand_n (64) - 32;
+ int width = prng_rand_n (64);
+ int height = prng_rand_n (64);
+ pixman_op_t op = operators[prng_rand_n (ARRAY_LENGTH (operators))];
+ pixman_format_code_t format = random_format (glyph_formats);
+
+ pixman_composite_glyphs (
+ op,
+ source, dest, format,
+ src_x, src_y,
+ mask_x, mask_y,
+ dest_x, dest_y,
+ width, height,
+ cache, 4 * n_glyphs, glyphs);
+ }
+ else
+ {
+ pixman_op_t op = operators[prng_rand_n (ARRAY_LENGTH (operators))];
+ int src_x = prng_rand_n (300) - 150;
+ int src_y = prng_rand_n (300) - 150;
+ int dest_x = prng_rand_n (64) - 32;
+ int dest_y = prng_rand_n (64) - 32;
+
+ pixman_composite_glyphs_no_mask (
+ op, source, dest,
+ src_x, src_y,
+ dest_x, dest_y,
+ cache, 4 * n_glyphs, glyphs);
+ }
+
+ pixman_glyph_cache_thaw (cache);
+
+ for (i = 0; i < n_glyphs; ++i)
+ {
+ pixman_image_t *img = glyph_images[i];
+ void *key1, *key2;
+
+ key1 = KEY1 (img);
+ key2 = KEY2 (img);
+
+ pixman_glyph_cache_remove (cache, key1, key2);
+ pixman_image_unref (glyph_images[i]);
+ }
+
+ crc32 = compute_crc32_for_image (0, dest);
+
+ pixman_image_unref (source);
+ pixman_image_unref (dest);
+
+ pixman_glyph_cache_destroy (cache);
+
+ return crc32;
+}
+
+int
+main (int argc, const char *argv[])
+{
+ return fuzzer_test_main ("glyph", 30000,
+ 0xFA478A79,
+ test_glyphs, argc, argv);
+}
diff --git a/qemu/pixman/test/gradient-crash-test.c b/qemu/pixman/test/gradient-crash-test.c
new file mode 100644
index 000000000..962d1cbe8
--- /dev/null
+++ b/qemu/pixman/test/gradient-crash-test.c
@@ -0,0 +1,158 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+
+int
+main (int argc, char **argv)
+{
+#define WIDTH 400
+#define HEIGHT 200
+
+ uint32_t *dest = malloc (WIDTH * HEIGHT * 4);
+ pixman_image_t *src_img;
+ pixman_image_t *dest_img;
+ int i, j, k, p;
+
+ typedef struct
+ {
+ pixman_point_fixed_t p0;
+ pixman_point_fixed_t p1;
+ } point_pair_t;
+
+ pixman_gradient_stop_t onestop[1] =
+ {
+ { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
+ };
+
+ pixman_gradient_stop_t subsetstops[2] =
+ {
+ { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
+ { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
+ };
+
+ pixman_gradient_stop_t stops01[2] =
+ {
+ { pixman_int_to_fixed (0), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
+ { pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0x1111 } }
+ };
+
+ point_pair_t point_pairs [] =
+ { { { pixman_double_to_fixed (0), 0 },
+ { pixman_double_to_fixed (WIDTH / 8.), pixman_int_to_fixed (0) } },
+ { { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) },
+ { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) } }
+ };
+
+ pixman_transform_t transformations[] = {
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (0.5), pixman_double_to_fixed (-100), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (3), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (1), pixman_double_to_fixed (0), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (2), pixman_double_to_fixed (1.000), pixman_double_to_fixed (1.0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (0), pixman_double_to_fixed (0), pixman_double_to_fixed (0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) }
+ }
+ },
+ {
+ { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (3), },
+ { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
+ { pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) }
+ }
+ },
+ };
+
+ pixman_fixed_t r_inner;
+ pixman_fixed_t r_outer;
+
+ enable_divbyzero_exceptions();
+
+ for (i = 0; i < WIDTH * HEIGHT; ++i)
+ dest[i] = 0x4f00004f; /* pale blue */
+
+ dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
+ WIDTH, HEIGHT,
+ dest,
+ WIDTH * 4);
+
+ r_inner = 0;
+ r_outer = pixman_double_to_fixed (50.0);
+
+ for (i = 0; i < 3; ++i)
+ {
+ pixman_gradient_stop_t *stops;
+ int num_stops;
+
+ if (i == 0)
+ {
+ stops = onestop;
+ num_stops = ARRAY_LENGTH (onestop);
+ }
+ else if (i == 1)
+ {
+ stops = subsetstops;
+ num_stops = ARRAY_LENGTH (subsetstops);
+ }
+ else
+ {
+ stops = stops01;
+ num_stops = ARRAY_LENGTH (stops01);
+ }
+
+ for (j = 0; j < 3; ++j)
+ {
+ for (p = 0; p < ARRAY_LENGTH (point_pairs); ++p)
+ {
+ point_pair_t *pair = &(point_pairs[p]);
+
+ if (j == 0)
+ src_img = pixman_image_create_conical_gradient (&(pair->p0), r_inner,
+ stops, num_stops);
+ else if (j == 1)
+ src_img = pixman_image_create_radial_gradient (&(pair->p0), &(pair->p1),
+ r_inner, r_outer,
+ stops, num_stops);
+ else
+ src_img = pixman_image_create_linear_gradient (&(pair->p0), &(pair->p1),
+ stops, num_stops);
+
+ for (k = 0; k < ARRAY_LENGTH (transformations); ++k)
+ {
+ pixman_image_set_transform (src_img, &transformations[k]);
+
+ pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NONE);
+ pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dest_img,
+ 0, 0, 0, 0, 0, 0, 10 * WIDTH, HEIGHT);
+ }
+
+ pixman_image_unref (src_img);
+ }
+
+ }
+ }
+
+ pixman_image_unref (dest_img);
+ free (dest);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/infinite-loop.c b/qemu/pixman/test/infinite-loop.c
new file mode 100644
index 000000000..02addaab2
--- /dev/null
+++ b/qemu/pixman/test/infinite-loop.c
@@ -0,0 +1,39 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "utils.h"
+
+int
+main (int argc, char **argv)
+{
+#define SRC_WIDTH 16
+#define SRC_HEIGHT 12
+#define DST_WIDTH 7
+#define DST_HEIGHT 2
+
+ static const pixman_transform_t transform = {
+ { { 0x200017bd, 0x00000000, 0x000e6465 },
+ { 0x00000000, 0x000a42fd, 0x000e6465 },
+ { 0x00000000, 0x00000000, 0x00010000 },
+ }
+ };
+ pixman_image_t *src, *dest;
+
+ src = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, SRC_WIDTH, SRC_HEIGHT, NULL, -1);
+ dest = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, DST_WIDTH, DST_HEIGHT, NULL, -1);
+
+ pixman_image_set_transform (src, &transform);
+ pixman_image_set_repeat (src, PIXMAN_REPEAT_NORMAL);
+ pixman_image_set_filter (src, PIXMAN_FILTER_BILINEAR, NULL, 0);
+
+ if (argc == 1 || strcmp (argv[1], "-nf") != 0)
+ fail_after (1, "infinite loop detected");
+
+ pixman_image_composite (
+ PIXMAN_OP_OVER, src, NULL, dest, -3, -3, 0, 0, 0, 0, 6, 2);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/lowlevel-blt-bench.c b/qemu/pixman/test/lowlevel-blt-bench.c
new file mode 100644
index 000000000..1049e21e7
--- /dev/null
+++ b/qemu/pixman/test/lowlevel-blt-bench.c
@@ -0,0 +1,820 @@
+/*
+ * Copyright © 2009 Nokia Corporation
+ * Copyright © 2010 Movial Creative Technologies Oy
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "utils.h"
+
+#define SOLID_FLAG 1
+#define CA_FLAG 2
+
+#define L1CACHE_SIZE (8 * 1024)
+#define L2CACHE_SIZE (128 * 1024)
+
+/* This is applied to both L1 and L2 tests - alternatively, you could
+ * parameterise bench_L or split it into two functions. It could be
+ * read at runtime on some architectures, but it only really matters
+ * that it's a number that's an integer divisor of both cacheline
+ * lengths, and further, it only really matters for caches that don't
+ * do allocate0on-write. */
+#define CACHELINE_LENGTH (32) /* bytes */
+
+#define WIDTH 1920
+#define HEIGHT 1080
+#define BUFSIZE (WIDTH * HEIGHT * 4)
+#define XWIDTH 256
+#define XHEIGHT 256
+#define TILEWIDTH 32
+#define TINYWIDTH 8
+
+#define EXCLUDE_OVERHEAD 1
+
+uint32_t *dst;
+uint32_t *src;
+uint32_t *mask;
+
+double bandwidth = 0;
+
+double
+bench_memcpy ()
+{
+ int64_t n = 0, total;
+ double t1, t2;
+ int x = 0;
+
+ t1 = gettime ();
+ while (1)
+ {
+ memcpy (dst, src, BUFSIZE - 64);
+ memcpy (src, dst, BUFSIZE - 64);
+ n += 4 * (BUFSIZE - 64);
+ t2 = gettime ();
+ if (t2 - t1 > 0.5)
+ break;
+ }
+ n = total = n * 5;
+ t1 = gettime ();
+ while (n > 0)
+ {
+ if (++x >= 64)
+ x = 0;
+ memcpy ((char *)dst + 1, (char *)src + x, BUFSIZE - 64);
+ memcpy ((char *)src + 1, (char *)dst + x, BUFSIZE - 64);
+ n -= 4 * (BUFSIZE - 64);
+ }
+ t2 = gettime ();
+ return (double)total / (t2 - t1);
+}
+
+static pixman_bool_t use_scaling = FALSE;
+static pixman_filter_t filter = PIXMAN_FILTER_NEAREST;
+
+/* nearly 1x scale factor */
+static pixman_transform_t m =
+{
+ {
+ { pixman_fixed_1 + 1, 0, 0 },
+ { 0, pixman_fixed_1, 0 },
+ { 0, 0, pixman_fixed_1 }
+ }
+};
+
+static void
+pixman_image_composite_wrapper (pixman_implementation_t *impl,
+ pixman_composite_info_t *info)
+{
+ if (use_scaling)
+ {
+ pixman_image_set_filter (info->src_image, filter, NULL, 0);
+ pixman_image_set_transform(info->src_image, &m);
+ }
+ pixman_image_composite (info->op,
+ info->src_image, info->mask_image, info->dest_image,
+ info->src_x, info->src_y,
+ info->mask_x, info->mask_y,
+ info->dest_x, info->dest_y,
+ info->width, info->height);
+}
+
+static void
+pixman_image_composite_empty (pixman_implementation_t *impl,
+ pixman_composite_info_t *info)
+{
+ if (use_scaling)
+ {
+ pixman_image_set_filter (info->src_image, filter, NULL, 0);
+ pixman_image_set_transform(info->src_image, &m);
+ }
+ pixman_image_composite (info->op,
+ info->src_image, info->mask_image, info->dest_image,
+ 0, 0, 0, 0, 0, 0, 1, 1);
+}
+
+static inline void
+call_func (pixman_composite_func_t func,
+ pixman_op_t op,
+ pixman_image_t * src_image,
+ pixman_image_t * mask_image,
+ pixman_image_t * dest_image,
+ int32_t src_x,
+ int32_t src_y,
+ int32_t mask_x,
+ int32_t mask_y,
+ int32_t dest_x,
+ int32_t dest_y,
+ int32_t width,
+ int32_t height)
+{
+ pixman_composite_info_t info;
+
+ info.op = op;
+ info.src_image = src_image;
+ info.mask_image = mask_image;
+ info.dest_image = dest_image;
+ info.src_x = src_x;
+ info.src_y = src_y;
+ info.mask_x = mask_x;
+ info.mask_y = mask_y;
+ info.dest_x = dest_x;
+ info.dest_y = dest_y;
+ info.width = width;
+ info.height = height;
+
+ func (0, &info);
+}
+
+void
+noinline
+bench_L (pixman_op_t op,
+ pixman_image_t * src_img,
+ pixman_image_t * mask_img,
+ pixman_image_t * dst_img,
+ int64_t n,
+ pixman_composite_func_t func,
+ int width,
+ int lines_count)
+{
+ int64_t i, j, k;
+ int x = 0;
+ int q = 0;
+ volatile int qx;
+
+ for (i = 0; i < n; i++)
+ {
+ /* For caches without allocate-on-write, we need to force the
+ * destination buffer back into the cache on each iteration,
+ * otherwise if they are evicted during the test, they remain
+ * uncached. This doesn't matter for tests which read the
+ * destination buffer, or for caches that do allocate-on-write,
+ * but in those cases this loop just adds constant time, which
+ * should be successfully cancelled out.
+ */
+ for (j = 0; j < lines_count; j++)
+ {
+ for (k = 0; k < width + 62; k += CACHELINE_LENGTH / sizeof *dst)
+ {
+ q += dst[j * WIDTH + k];
+ }
+ q += dst[j * WIDTH + width + 62];
+ }
+ if (++x >= 64)
+ x = 0;
+ call_func (func, op, src_img, mask_img, dst_img, x, 0, x, 0, 63 - x, 0, width, lines_count);
+ }
+ qx = q;
+}
+
+void
+noinline
+bench_M (pixman_op_t op,
+ pixman_image_t * src_img,
+ pixman_image_t * mask_img,
+ pixman_image_t * dst_img,
+ int64_t n,
+ pixman_composite_func_t func)
+{
+ int64_t i;
+ int x = 0;
+
+ for (i = 0; i < n; i++)
+ {
+ if (++x >= 64)
+ x = 0;
+ call_func (func, op, src_img, mask_img, dst_img, x, 0, x, 0, 1, 0, WIDTH - 64, HEIGHT);
+ }
+}
+
+double
+noinline
+bench_HT (pixman_op_t op,
+ pixman_image_t * src_img,
+ pixman_image_t * mask_img,
+ pixman_image_t * dst_img,
+ int64_t n,
+ pixman_composite_func_t func)
+{
+ double pix_cnt = 0;
+ int x = 0;
+ int y = 0;
+ int64_t i;
+
+ srand (0);
+ for (i = 0; i < n; i++)
+ {
+ int w = (rand () % (TILEWIDTH * 2)) + 1;
+ int h = (rand () % (TILEWIDTH * 2)) + 1;
+ if (x + w > WIDTH)
+ {
+ x = 0;
+ y += TILEWIDTH * 2;
+ }
+ if (y + h > HEIGHT)
+ {
+ y = 0;
+ }
+ call_func (func, op, src_img, mask_img, dst_img, x, y, x, y, x, y, w, h);
+ x += w;
+ pix_cnt += w * h;
+ }
+ return pix_cnt;
+}
+
+double
+noinline
+bench_VT (pixman_op_t op,
+ pixman_image_t * src_img,
+ pixman_image_t * mask_img,
+ pixman_image_t * dst_img,
+ int64_t n,
+ pixman_composite_func_t func)
+{
+ double pix_cnt = 0;
+ int x = 0;
+ int y = 0;
+ int64_t i;
+
+ srand (0);
+ for (i = 0; i < n; i++)
+ {
+ int w = (rand () % (TILEWIDTH * 2)) + 1;
+ int h = (rand () % (TILEWIDTH * 2)) + 1;
+ if (y + h > HEIGHT)
+ {
+ y = 0;
+ x += TILEWIDTH * 2;
+ }
+ if (x + w > WIDTH)
+ {
+ x = 0;
+ }
+ call_func (func, op, src_img, mask_img, dst_img, x, y, x, y, x, y, w, h);
+ y += h;
+ pix_cnt += w * h;
+ }
+ return pix_cnt;
+}
+
+double
+noinline
+bench_R (pixman_op_t op,
+ pixman_image_t * src_img,
+ pixman_image_t * mask_img,
+ pixman_image_t * dst_img,
+ int64_t n,
+ pixman_composite_func_t func,
+ int maxw,
+ int maxh)
+{
+ double pix_cnt = 0;
+ int64_t i;
+
+ if (maxw <= TILEWIDTH * 2 || maxh <= TILEWIDTH * 2)
+ {
+ printf("error: maxw <= TILEWIDTH * 2 || maxh <= TILEWIDTH * 2\n");
+ return 0;
+ }
+
+ srand (0);
+ for (i = 0; i < n; i++)
+ {
+ int w = (rand () % (TILEWIDTH * 2)) + 1;
+ int h = (rand () % (TILEWIDTH * 2)) + 1;
+ int sx = rand () % (maxw - TILEWIDTH * 2);
+ int sy = rand () % (maxh - TILEWIDTH * 2);
+ int dx = rand () % (maxw - TILEWIDTH * 2);
+ int dy = rand () % (maxh - TILEWIDTH * 2);
+ call_func (func, op, src_img, mask_img, dst_img, sx, sy, sx, sy, dx, dy, w, h);
+ pix_cnt += w * h;
+ }
+ return pix_cnt;
+}
+
+double
+noinline
+bench_RT (pixman_op_t op,
+ pixman_image_t * src_img,
+ pixman_image_t * mask_img,
+ pixman_image_t * dst_img,
+ int64_t n,
+ pixman_composite_func_t func,
+ int maxw,
+ int maxh)
+{
+ double pix_cnt = 0;
+ int64_t i;
+
+ if (maxw <= TINYWIDTH * 2 || maxh <= TINYWIDTH * 2)
+ {
+ printf("error: maxw <= TINYWIDTH * 2 || maxh <= TINYWIDTH * 2\n");
+ return 0;
+ }
+
+ srand (0);
+ for (i = 0; i < n; i++)
+ {
+ int w = (rand () % (TINYWIDTH * 2)) + 1;
+ int h = (rand () % (TINYWIDTH * 2)) + 1;
+ int sx = rand () % (maxw - TINYWIDTH * 2);
+ int sy = rand () % (maxh - TINYWIDTH * 2);
+ int dx = rand () % (maxw - TINYWIDTH * 2);
+ int dy = rand () % (maxh - TINYWIDTH * 2);
+ call_func (func, op, src_img, mask_img, dst_img, sx, sy, sx, sy, dx, dy, w, h);
+ pix_cnt += w * h;
+ }
+ return pix_cnt;
+}
+
+void
+bench_composite (char * testname,
+ int src_fmt,
+ int src_flags,
+ int op,
+ int mask_fmt,
+ int mask_flags,
+ int dst_fmt,
+ double npix)
+{
+ pixman_image_t * src_img;
+ pixman_image_t * dst_img;
+ pixman_image_t * mask_img;
+ pixman_image_t * xsrc_img;
+ pixman_image_t * xdst_img;
+ pixman_image_t * xmask_img;
+ double t1, t2, t3, pix_cnt;
+ int64_t n, l1test_width, nlines;
+ double bytes_per_pix = 0;
+ pixman_bool_t bench_pixbuf = FALSE;
+
+ pixman_composite_func_t func = pixman_image_composite_wrapper;
+
+ if (!(src_flags & SOLID_FLAG))
+ {
+ bytes_per_pix += (src_fmt >> 24) / 8.0;
+ src_img = pixman_image_create_bits (src_fmt,
+ WIDTH, HEIGHT,
+ src,
+ WIDTH * 4);
+ xsrc_img = pixman_image_create_bits (src_fmt,
+ XWIDTH, XHEIGHT,
+ src,
+ XWIDTH * 4);
+ }
+ else
+ {
+ src_img = pixman_image_create_bits (src_fmt,
+ 1, 1,
+ src,
+ 4);
+ xsrc_img = pixman_image_create_bits (src_fmt,
+ 1, 1,
+ src,
+ 4);
+ pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NORMAL);
+ pixman_image_set_repeat (xsrc_img, PIXMAN_REPEAT_NORMAL);
+ }
+
+ bytes_per_pix += (dst_fmt >> 24) / 8.0;
+ dst_img = pixman_image_create_bits (dst_fmt,
+ WIDTH, HEIGHT,
+ dst,
+ WIDTH * 4);
+
+ mask_img = NULL;
+ xmask_img = NULL;
+ if (strcmp (testname, "pixbuf") == 0 || strcmp (testname, "rpixbuf") == 0)
+ {
+ bench_pixbuf = TRUE;
+ }
+ if (!(mask_flags & SOLID_FLAG) && mask_fmt != PIXMAN_null)
+ {
+ bytes_per_pix += (mask_fmt >> 24) / ((op == PIXMAN_OP_SRC) ? 8.0 : 4.0);
+ mask_img = pixman_image_create_bits (mask_fmt,
+ WIDTH, HEIGHT,
+ bench_pixbuf ? src : mask,
+ WIDTH * 4);
+ xmask_img = pixman_image_create_bits (mask_fmt,
+ XWIDTH, XHEIGHT,
+ bench_pixbuf ? src : mask,
+ XWIDTH * 4);
+ }
+ else if (mask_fmt != PIXMAN_null)
+ {
+ mask_img = pixman_image_create_bits (mask_fmt,
+ 1, 1,
+ mask,
+ 4);
+ xmask_img = pixman_image_create_bits (mask_fmt,
+ 1, 1,
+ mask,
+ 4 * 4);
+ pixman_image_set_repeat (mask_img, PIXMAN_REPEAT_NORMAL);
+ pixman_image_set_repeat (xmask_img, PIXMAN_REPEAT_NORMAL);
+ }
+ if ((mask_flags & CA_FLAG) && mask_fmt != PIXMAN_null)
+ {
+ pixman_image_set_component_alpha (mask_img, 1);
+ }
+ xdst_img = pixman_image_create_bits (dst_fmt,
+ XWIDTH, XHEIGHT,
+ dst,
+ XWIDTH * 4);
+
+
+ printf ("%24s %c", testname, func != pixman_image_composite_wrapper ?
+ '-' : '=');
+
+ memcpy (dst, src, BUFSIZE);
+ memcpy (src, dst, BUFSIZE);
+
+ l1test_width = L1CACHE_SIZE / 8 - 64;
+ if (l1test_width < 1)
+ l1test_width = 1;
+ if (l1test_width > WIDTH - 64)
+ l1test_width = WIDTH - 64;
+ n = 1 + npix / (l1test_width * 8);
+ t1 = gettime ();
+#if EXCLUDE_OVERHEAD
+ bench_L (op, src_img, mask_img, dst_img, n, pixman_image_composite_empty, l1test_width, 1);
+#endif
+ t2 = gettime ();
+ bench_L (op, src_img, mask_img, dst_img, n, func, l1test_width, 1);
+ t3 = gettime ();
+ printf (" L1:%7.2f", (double)n * l1test_width * 1 /
+ ((t3 - t2) - (t2 - t1)) / 1000000.);
+ fflush (stdout);
+
+ memcpy (dst, src, BUFSIZE);
+ memcpy (src, dst, BUFSIZE);
+
+ nlines = (L2CACHE_SIZE / l1test_width) /
+ ((PIXMAN_FORMAT_BPP(src_fmt) + PIXMAN_FORMAT_BPP(dst_fmt)) / 8);
+ if (nlines < 1)
+ nlines = 1;
+ n = 1 + npix / (l1test_width * nlines);
+ t1 = gettime ();
+#if EXCLUDE_OVERHEAD
+ bench_L (op, src_img, mask_img, dst_img, n, pixman_image_composite_empty, l1test_width, nlines);
+#endif
+ t2 = gettime ();
+ bench_L (op, src_img, mask_img, dst_img, n, func, l1test_width, nlines);
+ t3 = gettime ();
+ printf (" L2:%7.2f", (double)n * l1test_width * nlines /
+ ((t3 - t2) - (t2 - t1)) / 1000000.);
+ fflush (stdout);
+
+ memcpy (dst, src, BUFSIZE);
+ memcpy (src, dst, BUFSIZE);
+
+ n = 1 + npix / (WIDTH * HEIGHT);
+ t1 = gettime ();
+#if EXCLUDE_OVERHEAD
+ bench_M (op, src_img, mask_img, dst_img, n, pixman_image_composite_empty);
+#endif
+ t2 = gettime ();
+ bench_M (op, src_img, mask_img, dst_img, n, func);
+ t3 = gettime ();
+ printf (" M:%6.2f (%6.2f%%)",
+ ((double)n * (WIDTH - 64) * HEIGHT / ((t3 - t2) - (t2 - t1))) / 1000000.,
+ ((double)n * (WIDTH - 64) * HEIGHT / ((t3 - t2) - (t2 - t1)) * bytes_per_pix) * (100.0 / bandwidth) );
+ fflush (stdout);
+
+ memcpy (dst, src, BUFSIZE);
+ memcpy (src, dst, BUFSIZE);
+
+ n = 1 + npix / (8 * TILEWIDTH * TILEWIDTH);
+ t1 = gettime ();
+#if EXCLUDE_OVERHEAD
+ pix_cnt = bench_HT (op, src_img, mask_img, dst_img, n, pixman_image_composite_empty);
+#endif
+ t2 = gettime ();
+ pix_cnt = bench_HT (op, src_img, mask_img, dst_img, n, func);
+ t3 = gettime ();
+ printf (" HT:%6.2f", (double)pix_cnt / ((t3 - t2) - (t2 - t1)) / 1000000.);
+ fflush (stdout);
+
+ memcpy (dst, src, BUFSIZE);
+ memcpy (src, dst, BUFSIZE);
+
+ n = 1 + npix / (8 * TILEWIDTH * TILEWIDTH);
+ t1 = gettime ();
+#if EXCLUDE_OVERHEAD
+ pix_cnt = bench_VT (op, src_img, mask_img, dst_img, n, pixman_image_composite_empty);
+#endif
+ t2 = gettime ();
+ pix_cnt = bench_VT (op, src_img, mask_img, dst_img, n, func);
+ t3 = gettime ();
+ printf (" VT:%6.2f", (double)pix_cnt / ((t3 - t2) - (t2 - t1)) / 1000000.);
+ fflush (stdout);
+
+ memcpy (dst, src, BUFSIZE);
+ memcpy (src, dst, BUFSIZE);
+
+ n = 1 + npix / (8 * TILEWIDTH * TILEWIDTH);
+ t1 = gettime ();
+#if EXCLUDE_OVERHEAD
+ pix_cnt = bench_R (op, src_img, mask_img, dst_img, n, pixman_image_composite_empty, WIDTH, HEIGHT);
+#endif
+ t2 = gettime ();
+ pix_cnt = bench_R (op, src_img, mask_img, dst_img, n, func, WIDTH, HEIGHT);
+ t3 = gettime ();
+ printf (" R:%6.2f", (double)pix_cnt / ((t3 - t2) - (t2 - t1)) / 1000000.);
+ fflush (stdout);
+
+ memcpy (dst, src, BUFSIZE);
+ memcpy (src, dst, BUFSIZE);
+
+ n = 1 + npix / (16 * TINYWIDTH * TINYWIDTH);
+ t1 = gettime ();
+#if EXCLUDE_OVERHEAD
+ pix_cnt = bench_RT (op, src_img, mask_img, dst_img, n, pixman_image_composite_empty, WIDTH, HEIGHT);
+#endif
+ t2 = gettime ();
+ pix_cnt = bench_RT (op, src_img, mask_img, dst_img, n, func, WIDTH, HEIGHT);
+ t3 = gettime ();
+ printf (" RT:%6.2f (%4.0fKops/s)\n", (double)pix_cnt / ((t3 - t2) - (t2 - t1)) / 1000000., (double) n / ((t3 - t2) * 1000));
+
+ if (mask_img) {
+ pixman_image_unref (mask_img);
+ pixman_image_unref (xmask_img);
+ }
+ pixman_image_unref (src_img);
+ pixman_image_unref (dst_img);
+ pixman_image_unref (xsrc_img);
+ pixman_image_unref (xdst_img);
+}
+
+#define PIXMAN_OP_OUT_REV (PIXMAN_OP_OUT_REVERSE)
+
+struct
+{
+ char *testname;
+ int src_fmt;
+ int src_flags;
+ int op;
+ int mask_fmt;
+ int mask_flags;
+ int dst_fmt;
+}
+tests_tbl[] =
+{
+ { "add_8_8_8", PIXMAN_a8, 0, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_a8 },
+ { "add_n_8_8", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_a8 },
+ { "add_n_8_8888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_a8r8g8b8 },
+ { "add_n_8_x888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_x8r8g8b8 },
+ { "add_n_8_0565", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "add_n_8_1555", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_a1r5g5b5 },
+ { "add_n_8_4444", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_a4r4g4b4 },
+ { "add_n_8_2222", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_a2r2g2b2 },
+ { "add_n_8_2x10", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_x2r10g10b10 },
+ { "add_n_8_2a10", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_a8, 0, PIXMAN_a2r10g10b10 },
+ { "add_n_8", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a8 },
+ { "add_n_8888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "add_n_x888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_x8r8g8b8 },
+ { "add_n_0565", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "add_n_1555", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a1r5g5b5 },
+ { "add_n_4444", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a4r4g4b4 },
+ { "add_n_2222", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a2r2g2b2 },
+ { "add_n_2x10", PIXMAN_a2r10g10b10, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_x2r10g10b10 },
+ { "add_n_2a10", PIXMAN_a2r10g10b10, 1, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a2r10g10b10 },
+ { "add_8_8", PIXMAN_a8, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a8 },
+ { "add_x888_x888", PIXMAN_x8r8g8b8, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_x8r8g8b8 },
+ { "add_8888_8888", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "add_8888_0565", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "add_8888_1555", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a1r5g5b5 },
+ { "add_8888_4444", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a4r4g4b4 },
+ { "add_8888_2222", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a2r2g2b2 },
+ { "add_0565_0565", PIXMAN_r5g6b5, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "add_1555_1555", PIXMAN_a1r5g5b5, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a1r5g5b5 },
+ { "add_0565_2x10", PIXMAN_r5g6b5, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_x2r10g10b10 },
+ { "add_2a10_2a10", PIXMAN_a2r10g10b10, 0, PIXMAN_OP_ADD, PIXMAN_null, 0, PIXMAN_a2r10g10b10 },
+ { "in_n_8_8", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_IN, PIXMAN_a8, 0, PIXMAN_a8 },
+ { "in_8_8", PIXMAN_a8, 0, PIXMAN_OP_IN, PIXMAN_null, 0, PIXMAN_a8 },
+ { "src_n_2222", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a2r2g2b2 },
+ { "src_n_0565", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "src_n_1555", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a1r5g5b5 },
+ { "src_n_4444", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a4r4g4b4 },
+ { "src_n_x888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_x8r8g8b8 },
+ { "src_n_8888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "src_n_2x10", PIXMAN_a2r10g10b10, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_x2r10g10b10 },
+ { "src_n_2a10", PIXMAN_a2r10g10b10, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a2r10g10b10 },
+ { "src_8888_0565", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "src_0565_8888", PIXMAN_r5g6b5, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "src_8888_4444", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a4r4g4b4 },
+ { "src_8888_2222", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a2r2g2b2 },
+ { "src_8888_2x10", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_x2r10g10b10 },
+ { "src_8888_2a10", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a2r10g10b10 },
+ { "src_0888_0565", PIXMAN_r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "src_0888_8888", PIXMAN_r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "src_0888_x888", PIXMAN_r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_x8r8g8b8 },
+ { "src_0888_8888_rev", PIXMAN_b8g8r8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_x8r8g8b8 },
+ { "src_0888_0565_rev", PIXMAN_b8g8r8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "src_x888_x888", PIXMAN_x8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_x8r8g8b8 },
+ { "src_x888_8888", PIXMAN_x8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "src_8888_8888", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "src_0565_0565", PIXMAN_r5g6b5, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "src_1555_0565", PIXMAN_a1r5g5b5, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "src_0565_1555", PIXMAN_r5g6b5, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a1r5g5b5 },
+ { "src_8_8", PIXMAN_a8, 0, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a8 },
+ { "src_n_8", PIXMAN_a8, 1, PIXMAN_OP_SRC, PIXMAN_null, 0, PIXMAN_a8 },
+ { "src_n_8_0565", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "src_n_8_1555", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_a1r5g5b5 },
+ { "src_n_8_4444", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_a4r4g4b4 },
+ { "src_n_8_2222", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_a2r2g2b2 },
+ { "src_n_8_x888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_x8r8g8b8 },
+ { "src_n_8_8888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_a8r8g8b8 },
+ { "src_n_8_2x10", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_x2r10g10b10 },
+ { "src_n_8_2a10", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_a2r10g10b10 },
+ { "src_8888_8_0565", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "src_0888_8_0565", PIXMAN_r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "src_0888_8_8888", PIXMAN_r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_a8r8g8b8 },
+ { "src_0888_8_x888", PIXMAN_r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_x8r8g8b8 },
+ { "src_x888_8_x888", PIXMAN_x8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_x8r8g8b8 },
+ { "src_x888_8_8888", PIXMAN_x8r8g8b8, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_a8r8g8b8 },
+ { "src_0565_8_0565", PIXMAN_r5g6b5, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "src_1555_8_0565", PIXMAN_a1r5g5b5, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "src_0565_8_1555", PIXMAN_r5g6b5, 0, PIXMAN_OP_SRC, PIXMAN_a8, 0, PIXMAN_a1r5g5b5 },
+ { "over_n_x888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_null, 0, PIXMAN_x8r8g8b8 },
+ { "over_n_8888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "over_n_0565", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "over_n_1555", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_null, 0, PIXMAN_a1r5g5b5 },
+ { "over_8888_0565", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_null, 0, PIXMAN_r5g6b5 },
+ { "over_8888_8888", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "over_8888_x888", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_null, 0, PIXMAN_x8r8g8b8 },
+ { "over_x888_8_0565", PIXMAN_x8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "over_x888_8_8888", PIXMAN_x8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_a8r8g8b8 },
+ { "over_n_8_0565", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "over_n_8_1555", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_a1r5g5b5 },
+ { "over_n_8_4444", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_a4r4g4b4 },
+ { "over_n_8_2222", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_a2r2g2b2 },
+ { "over_n_8_x888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_x8r8g8b8 },
+ { "over_n_8_8888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_a8r8g8b8 },
+ { "over_n_8_2x10", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_x2r10g10b10 },
+ { "over_n_8_2a10", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8, 0, PIXMAN_a2r10g10b10 },
+ { "over_n_8888_8888_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8r8g8b8, 2, PIXMAN_a8r8g8b8 },
+ { "over_n_8888_x888_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8r8g8b8, 2, PIXMAN_x8r8g8b8 },
+ { "over_n_8888_0565_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8r8g8b8, 2, PIXMAN_r5g6b5 },
+ { "over_n_8888_1555_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8r8g8b8, 2, PIXMAN_a1r5g5b5 },
+ { "over_n_8888_4444_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8r8g8b8, 2, PIXMAN_a4r4g4b4 },
+ { "over_n_8888_2222_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8r8g8b8, 2, PIXMAN_a2r2g2b2 },
+ { "over_n_8888_2x10_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8r8g8b8, 2, PIXMAN_x2r10g10b10 },
+ { "over_n_8888_2a10_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OVER, PIXMAN_a8r8g8b8, 2, PIXMAN_a2r10g10b10 },
+ { "over_8888_n_8888", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_a8, 1, PIXMAN_a8r8g8b8 },
+ { "over_8888_n_x888", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_a8, 1, PIXMAN_x8r8g8b8 },
+ { "over_8888_n_0565", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_a8, 1, PIXMAN_r5g6b5 },
+ { "over_8888_n_1555", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_a8, 1, PIXMAN_a1r5g5b5 },
+ { "over_x888_n_8888", PIXMAN_x8r8g8b8, 0, PIXMAN_OP_OVER, PIXMAN_a8, 1, PIXMAN_a8r8g8b8 },
+ { "outrev_n_8_0565", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OUT_REV, PIXMAN_a8, 0, PIXMAN_r5g6b5 },
+ { "outrev_n_8_1555", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OUT_REV, PIXMAN_a8, 0, PIXMAN_a1r5g5b5 },
+ { "outrev_n_8_x888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OUT_REV, PIXMAN_a8, 0, PIXMAN_x8r8g8b8 },
+ { "outrev_n_8_8888", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OUT_REV, PIXMAN_a8, 0, PIXMAN_a8r8g8b8 },
+ { "outrev_n_8888_0565_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OUT_REV, PIXMAN_a8r8g8b8, 2, PIXMAN_r5g6b5 },
+ { "outrev_n_8888_1555_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OUT_REV, PIXMAN_a8r8g8b8, 2, PIXMAN_a1r5g5b5 },
+ { "outrev_n_8888_x888_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OUT_REV, PIXMAN_a8r8g8b8, 2, PIXMAN_x8r8g8b8 },
+ { "outrev_n_8888_8888_ca", PIXMAN_a8r8g8b8, 1, PIXMAN_OP_OUT_REV, PIXMAN_a8r8g8b8, 2, PIXMAN_a8r8g8b8 },
+ { "over_reverse_n_8888", PIXMAN_a8r8g8b8, 0, PIXMAN_OP_OVER_REVERSE, PIXMAN_null, 0, PIXMAN_a8r8g8b8 },
+ { "pixbuf", PIXMAN_x8b8g8r8, 0, PIXMAN_OP_SRC, PIXMAN_a8b8g8r8, 0, PIXMAN_a8r8g8b8 },
+ { "rpixbuf", PIXMAN_x8b8g8r8, 0, PIXMAN_OP_SRC, PIXMAN_a8b8g8r8, 0, PIXMAN_a8b8g8r8 },
+};
+
+int
+main (int argc, char *argv[])
+{
+ double x;
+ int i;
+ const char *pattern = NULL;
+ for (i = 1; i < argc; i++)
+ {
+ if (argv[i][0] == '-')
+ {
+ if (strchr (argv[i] + 1, 'b'))
+ {
+ use_scaling = TRUE;
+ filter = PIXMAN_FILTER_BILINEAR;
+ }
+ else if (strchr (argv[i] + 1, 'n'))
+ {
+ use_scaling = TRUE;
+ filter = PIXMAN_FILTER_NEAREST;
+ }
+ }
+ else
+ {
+ pattern = argv[i];
+ }
+ }
+
+ if (!pattern)
+ {
+ printf ("Usage: lowlevel-blt-bench [-b] [-n] pattern\n");
+ printf (" -n : benchmark nearest scaling\n");
+ printf (" -b : benchmark bilinear scaling\n");
+ return 1;
+ }
+
+ src = aligned_malloc (4096, BUFSIZE * 3);
+ memset (src, 0xCC, BUFSIZE * 3);
+ dst = src + (BUFSIZE / 4);
+ mask = dst + (BUFSIZE / 4);
+
+ printf ("Benchmark for a set of most commonly used functions\n");
+ printf ("---\n");
+ printf ("All results are presented in millions of pixels per second\n");
+ printf ("L1 - small Xx1 rectangle (fitting L1 cache), always blitted at the same\n");
+ printf (" memory location with small drift in horizontal direction\n");
+ printf ("L2 - small XxY rectangle (fitting L2 cache), always blitted at the same\n");
+ printf (" memory location with small drift in horizontal direction\n");
+ printf ("M - large %dx%d rectangle, always blitted at the same\n",
+ WIDTH - 64, HEIGHT);
+ printf (" memory location with small drift in horizontal direction\n");
+ printf ("HT - random rectangles with %dx%d average size are copied from\n",
+ TILEWIDTH, TILEWIDTH);
+ printf (" one %dx%d buffer to another, traversing from left to right\n",
+ WIDTH, HEIGHT);
+ printf (" and from top to bottom\n");
+ printf ("VT - random rectangles with %dx%d average size are copied from\n",
+ TILEWIDTH, TILEWIDTH);
+ printf (" one %dx%d buffer to another, traversing from top to bottom\n",
+ WIDTH, HEIGHT);
+ printf (" and from left to right\n");
+ printf ("R - random rectangles with %dx%d average size are copied from\n",
+ TILEWIDTH, TILEWIDTH);
+ printf (" random locations of one %dx%d buffer to another\n",
+ WIDTH, HEIGHT);
+ printf ("RT - as R, but %dx%d average sized rectangles are copied\n",
+ TINYWIDTH, TINYWIDTH);
+ printf ("---\n");
+ bandwidth = x = bench_memcpy ();
+ printf ("reference memcpy speed = %.1fMB/s (%.1fMP/s for 32bpp fills)\n",
+ x / 1000000., x / 4000000);
+ if (use_scaling)
+ {
+ printf ("---\n");
+ if (filter == PIXMAN_FILTER_BILINEAR)
+ printf ("BILINEAR scaling\n");
+ else if (filter == PIXMAN_FILTER_NEAREST)
+ printf ("NEAREST scaling\n");
+ else
+ printf ("UNKNOWN scaling\n");
+ }
+ printf ("---\n");
+
+ for (i = 0; i < ARRAY_LENGTH (tests_tbl); i++)
+ {
+ if (strcmp (pattern, "all") == 0 || strcmp (tests_tbl[i].testname, pattern) == 0)
+ {
+ bench_composite (tests_tbl[i].testname,
+ tests_tbl[i].src_fmt,
+ tests_tbl[i].src_flags,
+ tests_tbl[i].op,
+ tests_tbl[i].mask_fmt,
+ tests_tbl[i].mask_flags,
+ tests_tbl[i].dst_fmt,
+ bandwidth/8);
+ }
+ }
+
+ free (src);
+ return 0;
+}
diff --git a/qemu/pixman/test/matrix-test.c b/qemu/pixman/test/matrix-test.c
new file mode 100644
index 000000000..0a5f203f5
--- /dev/null
+++ b/qemu/pixman/test/matrix-test.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright © 2012 Siarhei Siamashka <siarhei.siamashka@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "utils.h"
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+
+#ifdef HAVE_FLOAT128
+
+#define pixman_fixed_to_float128(x) (((__float128)(x)) / 65536.0Q)
+
+typedef struct { __float128 v[3]; } pixman_vector_f128_t;
+typedef struct { __float128 m[3][3]; } pixman_transform_f128_t;
+
+pixman_bool_t
+pixman_transform_point_f128 (const pixman_transform_f128_t *t,
+ const pixman_vector_f128_t *v,
+ pixman_vector_f128_t *result)
+{
+ int i;
+ for (i = 0; i < 3; i++)
+ {
+ result->v[i] = t->m[i][0] * v->v[0] +
+ t->m[i][1] * v->v[1] +
+ t->m[i][2] * v->v[2];
+ }
+ if (result->v[2] != 0)
+ {
+ result->v[0] /= result->v[2];
+ result->v[1] /= result->v[2];
+ result->v[2] = 1;
+ return TRUE;
+ }
+ else
+ {
+ return FALSE;
+ }
+}
+
+pixman_bool_t does_it_fit_fixed_48_16 (__float128 x)
+{
+ if (x >= 65536.0Q * 65536.0Q * 32768.0Q)
+ return FALSE;
+ if (x <= -65536.0Q * 65536.0Q * 32768.0Q)
+ return FALSE;
+ return TRUE;
+}
+
+#endif
+
+static inline uint32_t
+byteswap32 (uint32_t x)
+{
+ return ((x & ((uint32_t)0xFF << 24)) >> 24) |
+ ((x & ((uint32_t)0xFF << 16)) >> 8) |
+ ((x & ((uint32_t)0xFF << 8)) << 8) |
+ ((x & ((uint32_t)0xFF << 0)) << 24);
+}
+
+static inline uint64_t
+byteswap64 (uint64_t x)
+{
+ return ((x & ((uint64_t)0xFF << 56)) >> 56) |
+ ((x & ((uint64_t)0xFF << 48)) >> 40) |
+ ((x & ((uint64_t)0xFF << 40)) >> 24) |
+ ((x & ((uint64_t)0xFF << 32)) >> 8) |
+ ((x & ((uint64_t)0xFF << 24)) << 8) |
+ ((x & ((uint64_t)0xFF << 16)) << 24) |
+ ((x & ((uint64_t)0xFF << 8)) << 40) |
+ ((x & ((uint64_t)0xFF << 0)) << 56);
+}
+
+static void
+byteswap_transform (pixman_transform_t *t)
+{
+ int i, j;
+
+ if (is_little_endian ())
+ return;
+
+ for (i = 0; i < 3; i++)
+ for (j = 0; j < 3; j++)
+ t->matrix[i][j] = byteswap32 (t->matrix[i][j]);
+}
+
+static void
+byteswap_vector_48_16 (pixman_vector_48_16_t *v)
+{
+ int i;
+
+ if (is_little_endian ())
+ return;
+
+ for (i = 0; i < 3; i++)
+ v->v[i] = byteswap64 (v->v[i]);
+}
+
+uint32_t
+test_matrix (int testnum, int verbose)
+{
+ uint32_t crc32 = 0;
+ int i, j, k;
+ pixman_bool_t is_affine;
+
+ prng_srand (testnum);
+
+ for (i = 0; i < 100; i++)
+ {
+ pixman_bool_t transform_ok;
+ pixman_transform_t ti;
+ pixman_vector_48_16_t vi, result_i;
+#ifdef HAVE_FLOAT128
+ pixman_transform_f128_t tf;
+ pixman_vector_f128_t vf, result_f;
+#endif
+ prng_randmemset (&ti, sizeof(ti), 0);
+ prng_randmemset (&vi, sizeof(vi), 0);
+ byteswap_transform (&ti);
+ byteswap_vector_48_16 (&vi);
+
+ for (j = 0; j < 3; j++)
+ {
+ /* make sure that "vi" contains 31.16 fixed point data */
+ vi.v[j] >>= 17;
+ /* and apply random shift */
+ if (prng_rand_n (3) == 0)
+ vi.v[j] >>= prng_rand_n (46);
+ }
+
+ if (prng_rand_n (2))
+ {
+ /* random shift for the matrix */
+ for (j = 0; j < 3; j++)
+ for (k = 0; k < 3; k++)
+ ti.matrix[j][k] >>= prng_rand_n (30);
+ }
+
+ if (prng_rand_n (2))
+ {
+ /* affine matrix */
+ ti.matrix[2][0] = 0;
+ ti.matrix[2][1] = 0;
+ ti.matrix[2][2] = pixman_fixed_1;
+ }
+
+ if (prng_rand_n (2))
+ {
+ /* cartesian coordinates */
+ vi.v[2] = pixman_fixed_1;
+ }
+
+ is_affine = (ti.matrix[2][0] == 0 && ti.matrix[2][1] == 0 &&
+ ti.matrix[2][2] == pixman_fixed_1 &&
+ vi.v[2] == pixman_fixed_1);
+
+ transform_ok = TRUE;
+ if (is_affine && prng_rand_n (2))
+ pixman_transform_point_31_16_affine (&ti, &vi, &result_i);
+ else
+ transform_ok = pixman_transform_point_31_16 (&ti, &vi, &result_i);
+
+#ifdef HAVE_FLOAT128
+ /* compare with a reference 128-bit floating point implementation */
+ for (j = 0; j < 3; j++)
+ {
+ vf.v[j] = pixman_fixed_to_float128 (vi.v[j]);
+ for (k = 0; k < 3; k++)
+ {
+ tf.m[j][k] = pixman_fixed_to_float128 (ti.matrix[j][k]);
+ }
+ }
+
+ if (pixman_transform_point_f128 (&tf, &vf, &result_f))
+ {
+ if (transform_ok ||
+ (does_it_fit_fixed_48_16 (result_f.v[0]) &&
+ does_it_fit_fixed_48_16 (result_f.v[1]) &&
+ does_it_fit_fixed_48_16 (result_f.v[2])))
+ {
+ for (j = 0; j < 3; j++)
+ {
+ double diff = fabs (result_f.v[j] -
+ pixman_fixed_to_float128 (result_i.v[j]));
+
+ if (is_affine && diff > (0.51 / 65536.0))
+ {
+ printf ("%d:%d: bad precision for affine (%.12f)\n",
+ testnum, i, diff);
+ abort ();
+ }
+ else if (diff > (0.71 / 65536.0))
+ {
+ printf ("%d:%d: bad precision for projective (%.12f)\n",
+ testnum, i, diff);
+ abort ();
+ }
+ }
+ }
+ }
+#endif
+ byteswap_vector_48_16 (&result_i);
+ crc32 = compute_crc32 (crc32, &result_i, sizeof (result_i));
+ }
+ return crc32;
+}
+
+int
+main (int argc, const char *argv[])
+{
+ return fuzzer_test_main ("matrix", 20000,
+ 0xBEBF98C3,
+ test_matrix, argc, argv);
+}
diff --git a/qemu/pixman/test/oob-test.c b/qemu/pixman/test/oob-test.c
new file mode 100644
index 000000000..0d19b504a
--- /dev/null
+++ b/qemu/pixman/test/oob-test.c
@@ -0,0 +1,101 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+
+typedef struct
+{
+ int width;
+ int height;
+ int stride;
+ pixman_format_code_t format;
+
+} image_info_t;
+
+typedef struct
+{
+ pixman_op_t op;
+
+ image_info_t src;
+ image_info_t dest;
+
+ int src_x;
+ int src_y;
+ int dest_x;
+ int dest_y;
+ int width;
+ int height;
+} composite_info_t;
+
+const composite_info_t info[] =
+{
+ {
+ PIXMAN_OP_SRC,
+ { 3, 6, 16, PIXMAN_a8r8g8b8 },
+ { 5, 7, 20, PIXMAN_x8r8g8b8 },
+ 1, 8,
+ 1, -1,
+ 1, 8
+ },
+ {
+ PIXMAN_OP_SRC,
+ { 7, 5, 36, PIXMAN_a8r8g8b8 },
+ { 6, 5, 28, PIXMAN_x8r8g8b8 },
+ 8, 5,
+ 5, 3,
+ 1, 2
+ },
+ {
+ PIXMAN_OP_OVER,
+ { 10, 10, 40, PIXMAN_a2b10g10r10 },
+ { 10, 10, 40, PIXMAN_a2b10g10r10 },
+ 0, 0,
+ 0, 0,
+ 10, 10
+ },
+ {
+ PIXMAN_OP_OVER,
+ { 10, 10, 40, PIXMAN_x2b10g10r10 },
+ { 10, 10, 40, PIXMAN_x2b10g10r10 },
+ 0, 0,
+ 0, 0,
+ 10, 10
+ },
+};
+
+static pixman_image_t *
+make_image (const image_info_t *info)
+{
+ char *data = malloc (info->stride * info->height);
+ int i;
+
+ for (i = 0; i < info->height * info->stride; ++i)
+ data[i] = (i % 255) ^ (((i % 16) << 4) | (i & 0xf0));
+
+ return pixman_image_create_bits (info->format, info->width, info->height, (uint32_t *)data, info->stride);
+}
+
+static void
+test_composite (const composite_info_t *info)
+{
+ pixman_image_t *src = make_image (&info->src);
+ pixman_image_t *dest = make_image (&info->dest);
+
+ pixman_image_composite (PIXMAN_OP_SRC, src, NULL, dest,
+ info->src_x, info->src_y,
+ 0, 0,
+ info->dest_x, info->dest_y,
+ info->width, info->height);
+}
+
+
+
+int
+main (int argc, char **argv)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_LENGTH (info); ++i)
+ test_composite (&info[i]);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/pdf-op-test.c b/qemu/pixman/test/pdf-op-test.c
new file mode 100644
index 000000000..dcb3a603a
--- /dev/null
+++ b/qemu/pixman/test/pdf-op-test.c
@@ -0,0 +1,83 @@
+#include <stdlib.h>
+#include "utils.h"
+
+static const pixman_op_t pdf_ops[] =
+{
+ PIXMAN_OP_MULTIPLY,
+ PIXMAN_OP_SCREEN,
+ PIXMAN_OP_OVERLAY,
+ PIXMAN_OP_DARKEN,
+ PIXMAN_OP_LIGHTEN,
+ PIXMAN_OP_COLOR_DODGE,
+ PIXMAN_OP_COLOR_BURN,
+ PIXMAN_OP_HARD_LIGHT,
+ PIXMAN_OP_SOFT_LIGHT,
+ PIXMAN_OP_DIFFERENCE,
+ PIXMAN_OP_EXCLUSION,
+ PIXMAN_OP_HSL_HUE,
+ PIXMAN_OP_HSL_SATURATION,
+ PIXMAN_OP_HSL_COLOR,
+ PIXMAN_OP_HSL_LUMINOSITY
+};
+
+static const uint32_t pixels[] =
+{
+ 0x00808080,
+ 0x80123456,
+ 0x00000000,
+ 0xffffffff,
+ 0x00ffffff,
+ 0x80808080,
+ 0x00123456,
+};
+
+int
+main ()
+{
+ int o, s, m, d;
+
+ enable_divbyzero_exceptions();
+
+ for (o = 0; o < ARRAY_LENGTH (pdf_ops); ++o)
+ {
+ pixman_op_t op = pdf_ops[o];
+
+ for (s = 0; s < ARRAY_LENGTH (pixels); ++s)
+ {
+ pixman_image_t *src;
+
+ src = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, 1, 1, (uint32_t *)&(pixels[s]), 4);
+
+ for (m = -1; m < ARRAY_LENGTH (pixels); ++m)
+ {
+ pixman_image_t *msk = NULL;
+ if (m >= 0)
+ {
+ msk = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, 1, 1, (uint32_t *)&(pixels[m]), 4);
+ }
+
+ for (d = 0; d < ARRAY_LENGTH (pixels); ++d)
+ {
+ pixman_image_t *dst;
+ uint32_t dp = pixels[d];
+
+ dst = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, 1, 1, &dp, 4);
+
+ pixman_image_composite (op, src, msk, dst,
+ 0, 0, 0, 0, 0, 0, 1, 1);
+
+ pixman_image_unref (dst);
+ }
+ if (msk)
+ pixman_image_unref (msk);
+ }
+
+ pixman_image_unref (src);
+ }
+ }
+
+ return 0;
+}
diff --git a/qemu/pixman/test/pixel-test.c b/qemu/pixman/test/pixel-test.c
new file mode 100644
index 000000000..8c525d202
--- /dev/null
+++ b/qemu/pixman/test/pixel-test.c
@@ -0,0 +1,267 @@
+/*
+ * Copyright © 2013 Soeren Sandmann
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <stdio.h>
+#include <stdlib.h> /* abort() */
+#include <math.h>
+#include <time.h>
+#include "utils.h"
+
+typedef struct pixel_combination_t pixel_combination_t;
+struct pixel_combination_t
+{
+ pixman_op_t op;
+ pixman_format_code_t src_format;
+ uint32_t src_pixel;
+ pixman_format_code_t dest_format;
+ uint32_t dest_pixel;
+};
+
+static const pixel_combination_t regressions[] =
+{
+ { PIXMAN_OP_OVER,
+ PIXMAN_a8r8g8b8, 0x0f00c300,
+ PIXMAN_x14r6g6b6, 0x003c0,
+ },
+ { PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_a4r4g4b4, 0xd0c0,
+ PIXMAN_a8r8g8b8, 0x5300ea00,
+ },
+ { PIXMAN_OP_OVER,
+ PIXMAN_a8r8g8b8, 0x20c6bf00,
+ PIXMAN_r5g6b5, 0xb9ff
+ },
+ { PIXMAN_OP_OVER,
+ PIXMAN_a8r8g8b8, 0x204ac7ff,
+ PIXMAN_r5g6b5, 0xc1ff
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0xffc3,
+ PIXMAN_a8r8g8b8, 0x102d00dd
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0x1f00,
+ PIXMAN_a8r8g8b8, 0x1bdf0c89
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0xf9d2,
+ PIXMAN_a8r8g8b8, 0x1076bcf7
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0x00c3,
+ PIXMAN_a8r8g8b8, 0x1bfe9ae5
+ },
+ { PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_r5g6b5, 0x09ff,
+ PIXMAN_a8r8g8b8, 0x0b00c16c
+ },
+ { PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_a2r2g2b2, 0xbc,
+ PIXMAN_a8r8g8b8, 0x9efff1ff
+ },
+ { PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_a4r4g4b4, 0xae5f,
+ PIXMAN_a8r8g8b8, 0xf215b675
+ },
+ { PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_a8r8g8b8, 0xce007980,
+ PIXMAN_a8r8g8b8, 0x80ffe4ad
+ },
+ { PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_a8r8g8b8, 0xb8b07bea,
+ PIXMAN_a4r4g4b4, 0x939c
+ },
+ { PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_r5g6b5, 0x0063,
+ PIXMAN_a8r8g8b8, 0x10bb1ed7,
+ },
+};
+
+static void
+fill (pixman_image_t *image, uint32_t pixel)
+{
+ uint8_t *data = (uint8_t *)pixman_image_get_data (image);
+ int bytes_per_pixel = PIXMAN_FORMAT_BPP (pixman_image_get_format (image)) / 8;
+ int n_bytes = pixman_image_get_stride (image) * pixman_image_get_height (image);
+ int i;
+
+ switch (bytes_per_pixel)
+ {
+ case 4:
+ for (i = 0; i < n_bytes / 4; ++i)
+ ((uint32_t *)data)[i] = pixel;
+ break;
+
+ case 2:
+ pixel &= 0xffff;
+ for (i = 0; i < n_bytes / 2; ++i)
+ ((uint16_t *)data)[i] = pixel;
+ break;
+
+ case 1:
+ pixel &= 0xff;
+ for (i = 0; i < n_bytes; ++i)
+ ((uint8_t *)data)[i] = pixel;
+ break;
+
+ default:
+ assert (0);
+ break;
+ }
+}
+
+static uint32_t
+access (pixman_image_t *image, int x, int y)
+{
+ int bytes_per_pixel;
+ int stride;
+ uint32_t result;
+ uint8_t *location;
+
+ if (x < 0 || x >= image->bits.width || y < 0 || y >= image->bits.height)
+ return 0;
+
+ bytes_per_pixel = PIXMAN_FORMAT_BPP (image->bits.format) / 8;
+ stride = image->bits.rowstride * 4;
+
+ location = (uint8_t *)image->bits.bits + y * stride + x * bytes_per_pixel;
+
+ if (bytes_per_pixel == 4)
+ result = *(uint32_t *)location;
+ else if (bytes_per_pixel == 2)
+ result = *(uint16_t *)location;
+ else if (bytes_per_pixel == 1)
+ result = *(uint8_t *)location;
+ else
+ assert (0);
+
+ return result;
+}
+
+static pixman_bool_t
+verify (int test_no, const pixel_combination_t *combination, int size)
+{
+ pixman_image_t *src, *dest;
+ pixel_checker_t src_checker, dest_checker;
+ color_t source_color, dest_color, reference_color;
+ pixman_bool_t result = TRUE;
+ int i, j;
+
+ /* Compute reference color */
+ pixel_checker_init (&src_checker, combination->src_format);
+ pixel_checker_init (&dest_checker, combination->dest_format);
+ pixel_checker_convert_pixel_to_color (
+ &src_checker, combination->src_pixel, &source_color);
+ pixel_checker_convert_pixel_to_color (
+ &dest_checker, combination->dest_pixel, &dest_color);
+ do_composite (combination->op,
+ &source_color, NULL, &dest_color,
+ &reference_color, FALSE);
+
+ src = pixman_image_create_bits (
+ combination->src_format, size, size, NULL, -1);
+ dest = pixman_image_create_bits (
+ combination->dest_format, size, size, NULL, -1);
+
+ fill (src, combination->src_pixel);
+ fill (dest, combination->dest_pixel);
+
+ pixman_image_composite32 (
+ combination->op, src, NULL, dest, 0, 0, 0, 0, 0, 0, size, size);
+
+ for (j = 0; j < size; ++j)
+ {
+ for (i = 0; i < size; ++i)
+ {
+ uint32_t computed = access (dest, i, j);
+ int32_t a, r, g, b;
+
+ if (!pixel_checker_check (&dest_checker, computed, &reference_color))
+ {
+ printf ("----------- Test %d failed ----------\n", test_no);
+
+ printf (" operator: %s\n", operator_name (combination->op));
+ printf (" src format: %s\n", format_name (combination->src_format));
+ printf (" dest format: %s\n", format_name (combination->dest_format));
+ printf (" - source ARGB: %f %f %f %f (pixel: %8x)\n",
+ source_color.a, source_color.r, source_color.g, source_color.b,
+ combination->src_pixel);
+ pixel_checker_split_pixel (&src_checker, combination->src_pixel,
+ &a, &r, &g, &b);
+ printf (" %8d %8d %8d %8d\n", a, r, g, b);
+
+ printf (" - dest ARGB: %f %f %f %f (pixel: %8x)\n",
+ dest_color.a, dest_color.r, dest_color.g, dest_color.b,
+ combination->dest_pixel);
+ pixel_checker_split_pixel (&dest_checker, combination->dest_pixel,
+ &a, &r, &g, &b);
+ printf (" %8d %8d %8d %8d\n", a, r, g, b);
+
+ pixel_checker_split_pixel (&dest_checker, computed, &a, &r, &g, &b);
+ printf (" - expected ARGB: %f %f %f %f\n",
+ reference_color.a, reference_color.r, reference_color.g, reference_color.b);
+
+ pixel_checker_get_min (&dest_checker, &reference_color, &a, &r, &g, &b);
+ printf (" min acceptable: %8d %8d %8d %8d\n", a, r, g, b);
+
+ pixel_checker_split_pixel (&dest_checker, computed, &a, &r, &g, &b);
+ printf (" got: %8d %8d %8d %8d (pixel: %8x)\n", a, r, g, b, computed);
+
+ pixel_checker_get_max (&dest_checker, &reference_color, &a, &r, &g, &b);
+ printf (" max acceptable: %8d %8d %8d %8d\n", a, r, g, b);
+
+ result = FALSE;
+ goto done;
+ }
+ }
+ }
+
+done:
+ pixman_image_unref (src);
+ pixman_image_unref (dest);
+
+ return result;
+}
+
+int
+main (int argc, char **argv)
+{
+ int result = 0;
+ int i, j;
+
+ for (i = 0; i < ARRAY_LENGTH (regressions); ++i)
+ {
+ const pixel_combination_t *combination = &(regressions[i]);
+
+ for (j = 1; j < 34; ++j)
+ {
+ if (!verify (i, combination, j))
+ {
+ result = 1;
+ break;
+ }
+ }
+ }
+
+ return result;
+}
diff --git a/qemu/pixman/test/prng-test.c b/qemu/pixman/test/prng-test.c
new file mode 100644
index 000000000..c1d9320cc
--- /dev/null
+++ b/qemu/pixman/test/prng-test.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright © 2012 Siarhei Siamashka <siarhei.siamashka@gmail.com>
+ *
+ * Based on the public domain implementation of small noncryptographic PRNG
+ * authored by Bob Jenkins: http://burtleburtle.net/bob/rand/smallprng.html
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+#include "utils-prng.h"
+#include "utils.h"
+
+/* The original code from http://www.burtleburtle.net/bob/rand/smallprng.html */
+
+typedef uint32_t u4;
+typedef struct ranctx { u4 a; u4 b; u4 c; u4 d; } ranctx;
+
+#define rot(x,k) (((x)<<(k))|((x)>>(32-(k))))
+u4 ranval( ranctx *x ) {
+ u4 e = x->a - rot(x->b, 27);
+ x->a = x->b ^ rot(x->c, 17);
+ x->b = x->c + x->d;
+ x->c = x->d + e;
+ x->d = e + x->a;
+ return x->d;
+}
+
+void raninit( ranctx *x, u4 seed ) {
+ u4 i;
+ x->a = 0xf1ea5eed, x->b = x->c = x->d = seed;
+ for (i=0; i<20; ++i) {
+ (void)ranval(x);
+ }
+}
+
+/*****************************************************************************/
+
+#define BUFSIZE (8 * 1024 * 1024)
+#define N 50
+
+void bench (void)
+{
+ double t1, t2;
+ int i;
+ prng_t prng;
+ uint8_t *buf = aligned_malloc (16, BUFSIZE + 1);
+
+ prng_srand_r (&prng, 1234);
+ t1 = gettime();
+ for (i = 0; i < N; i++)
+ prng_randmemset_r (&prng, buf, BUFSIZE, 0);
+ t2 = gettime();
+ printf ("aligned randmemset : %.2f MB/s\n",
+ (double)BUFSIZE * N / 1000000. / (t2 - t1));
+
+ t1 = gettime();
+ for (i = 0; i < N; i++)
+ prng_randmemset_r (&prng, buf + 1, BUFSIZE, 0);
+ t2 = gettime();
+ printf ("unaligned randmemset : %.2f MB/s\n",
+ (double)BUFSIZE * N / 1000000. / (t2 - t1));
+
+ t1 = gettime();
+ for (i = 0; i < N; i++)
+ {
+ prng_randmemset_r (&prng, buf, BUFSIZE, RANDMEMSET_MORE_00_AND_FF);
+ }
+ t2 = gettime ();
+ printf ("aligned randmemset (more 00 and FF) : %.2f MB/s\n",
+ (double)BUFSIZE * N / 1000000. / (t2 - t1));
+
+ t1 = gettime();
+ for (i = 0; i < N; i++)
+ {
+ prng_randmemset_r (&prng, buf + 1, BUFSIZE, RANDMEMSET_MORE_00_AND_FF);
+ }
+ t2 = gettime ();
+ printf ("unaligned randmemset (more 00 and FF) : %.2f MB/s\n",
+ (double)BUFSIZE * N / 1000000. / (t2 - t1));
+
+ free (buf);
+}
+
+#define SMALLBUFSIZE 100
+
+int main (int argc, char *argv[])
+{
+ const uint32_t ref_crc[RANDMEMSET_MORE_00_AND_FF + 1] =
+ {
+ 0xBA06763D, 0x103FC550, 0x8B59ABA5, 0xD82A0F39,
+ 0xD2321099, 0xFD8C5420, 0xD3B7C42A, 0xFC098093,
+ 0x85E01DE0, 0x6680F8F7, 0x4D32DD3C, 0xAE52382B,
+ 0x149E6CB5, 0x8B336987, 0x15DCB2B3, 0x8A71B781
+ };
+ uint32_t crc1, crc2;
+ uint32_t ref, seed, seed0, seed1, seed2, seed3;
+ prng_rand_128_data_t buf;
+ uint8_t *bytebuf = aligned_malloc(16, SMALLBUFSIZE + 1);
+ ranctx x;
+ prng_t prng;
+ prng_randmemset_flags_t flags;
+
+ if (argc > 1 && strcmp(argv[1], "-bench") == 0)
+ {
+ bench ();
+ return 0;
+ }
+
+ /* basic test */
+ raninit (&x, 0);
+ prng_srand_r (&prng, 0);
+ assert (ranval (&x) == prng_rand_r (&prng));
+
+ /* test for simd code */
+ seed = 0;
+ prng_srand_r (&prng, seed);
+ seed0 = (seed = seed * 1103515245 + 12345);
+ seed1 = (seed = seed * 1103515245 + 12345);
+ seed2 = (seed = seed * 1103515245 + 12345);
+ seed3 = (seed = seed * 1103515245 + 12345);
+ prng_rand_128_r (&prng, &buf);
+
+ raninit (&x, seed0);
+ ref = ranval (&x);
+ assert (ref == buf.w[0]);
+
+ raninit (&x, seed1);
+ ref = ranval (&x);
+ assert (ref == buf.w[1]);
+
+ raninit (&x, seed2);
+ ref = ranval (&x);
+ assert (ref == buf.w[2]);
+
+ raninit (&x, seed3);
+ ref = ranval (&x);
+ assert (ref == buf.w[3]);
+
+ /* test for randmemset */
+ for (flags = 0; flags <= RANDMEMSET_MORE_00_AND_FF; flags++)
+ {
+ prng_srand_r (&prng, 1234);
+ prng_randmemset_r (&prng, bytebuf, 16, flags);
+ prng_randmemset_r (&prng, bytebuf + 16, SMALLBUFSIZE - 17, flags);
+ crc1 = compute_crc32 (0, bytebuf, SMALLBUFSIZE - 1);
+ prng_srand_r (&prng, 1234);
+ prng_randmemset_r (&prng, bytebuf + 1, SMALLBUFSIZE - 1, flags);
+ crc2 = compute_crc32 (0, bytebuf + 1, SMALLBUFSIZE - 1);
+ assert (ref_crc[flags] == crc1);
+ assert (ref_crc[flags] == crc2);
+ }
+
+ free (bytebuf);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/radial-perf-test.c b/qemu/pixman/test/radial-perf-test.c
new file mode 100644
index 000000000..71092e27b
--- /dev/null
+++ b/qemu/pixman/test/radial-perf-test.c
@@ -0,0 +1,58 @@
+#include "utils.h"
+#include <stdio.h>
+
+int
+main ()
+{
+ static const pixman_point_fixed_t inner = { 0x0000, 0x0000 };
+ static const pixman_point_fixed_t outer = { 0x0000, 0x0000 };
+ static const pixman_fixed_t r_inner = 0;
+ static const pixman_fixed_t r_outer = 64 << 16;
+ static const pixman_gradient_stop_t stops[] = {
+ { 0x00000, { 0x6666, 0x6666, 0x6666, 0xffff } },
+ { 0x10000, { 0x0000, 0x0000, 0x0000, 0xffff } }
+ };
+ static const pixman_transform_t transform = {
+ { { 0x0, 0x26ee, 0x0},
+ { 0xffffeeef, 0x0, 0x0},
+ { 0x0, 0x0, 0x10000}
+ }
+ };
+ static const pixman_color_t z = { 0x0000, 0x0000, 0x0000, 0x0000 };
+ pixman_image_t *dest, *radial, *zero;
+ int i;
+ double before, after;
+
+ dest = pixman_image_create_bits (
+ PIXMAN_x8r8g8b8, 640, 429, NULL, -1);
+ zero = pixman_image_create_solid_fill (&z);
+ radial = pixman_image_create_radial_gradient (
+ &inner, &outer, r_inner, r_outer, stops, ARRAY_LENGTH (stops));
+ pixman_image_set_transform (radial, &transform);
+ pixman_image_set_repeat (radial, PIXMAN_REPEAT_PAD);
+
+#define N_COMPOSITE 500
+
+ before = gettime();
+ for (i = 0; i < N_COMPOSITE; ++i)
+ {
+ before -= gettime();
+
+ pixman_image_composite (
+ PIXMAN_OP_SRC, zero, NULL, dest,
+ 0, 0, 0, 0, 0, 0, 640, 429);
+
+ before += gettime();
+
+ pixman_image_composite32 (
+ PIXMAN_OP_OVER, radial, NULL, dest,
+ - 150, -158, 0, 0, 0, 0, 640, 361);
+ }
+
+ after = gettime();
+
+ write_png (dest, "radial.png");
+
+ printf ("Average time to composite: %f\n", (after - before) / N_COMPOSITE);
+ return 0;
+}
diff --git a/qemu/pixman/test/region-contains-test.c b/qemu/pixman/test/region-contains-test.c
new file mode 100644
index 000000000..096e65179
--- /dev/null
+++ b/qemu/pixman/test/region-contains-test.c
@@ -0,0 +1,169 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include "utils.h"
+
+static void
+make_random_region (pixman_region32_t *region)
+{
+ int n_boxes;
+
+ pixman_region32_init (region);
+
+ n_boxes = prng_rand_n (64);
+ while (n_boxes--)
+ {
+ int32_t x, y;
+ uint32_t w, h;
+
+ x = (int32_t)prng_rand() >> 2;
+ y = (int32_t)prng_rand() >> 2;
+ w = prng_rand() >> 2;
+ h = prng_rand() >> 2;
+
+ pixman_region32_union_rect (region, region, x, y, w, h);
+ }
+}
+
+static void
+print_box (pixman_box32_t *box)
+{
+ printf (" %d %d %d %d\n", box->x1, box->y1, box->x2, box->y2);
+}
+
+static int32_t
+random_coord (pixman_region32_t *region, pixman_bool_t x)
+{
+ pixman_box32_t *b, *bb;
+ int n_boxes;
+ int begin, end;
+
+ if (prng_rand_n (14))
+ {
+ bb = pixman_region32_rectangles (region, &n_boxes);
+ if (n_boxes == 0)
+ goto use_extent;
+ b = bb + prng_rand_n (n_boxes);
+ }
+ else
+ {
+ use_extent:
+ b = pixman_region32_extents (region);
+ n_boxes = 1;
+ }
+
+ if (x)
+ {
+ begin = b->x1;
+ end = b->x2;
+ }
+ else
+ {
+ begin = b->y1;
+ end = b->y2;
+ }
+
+ switch (prng_rand_n (5))
+ {
+ case 0:
+ return begin - prng_rand();
+ case 1:
+ return end + prng_rand ();
+ case 2:
+ return end;
+ case 3:
+ return begin;
+ default:
+ return (end - begin) / 2 + begin;
+ }
+ return 0;
+}
+
+static uint32_t
+compute_crc32_u32 (uint32_t crc32, uint32_t v)
+{
+ if (!is_little_endian())
+ {
+ v = ((v & 0xff000000) >> 24) |
+ ((v & 0x00ff0000) >> 8) |
+ ((v & 0x0000ff00) << 8) |
+ ((v & 0x000000ff) << 24);
+ }
+
+ return compute_crc32 (crc32, &v, sizeof (int32_t));
+}
+
+static uint32_t
+crc32_box32 (uint32_t crc32, pixman_box32_t *box)
+{
+ crc32 = compute_crc32_u32 (crc32, box->x1);
+ crc32 = compute_crc32_u32 (crc32, box->y1);
+ crc32 = compute_crc32_u32 (crc32, box->x2);
+ crc32 = compute_crc32_u32 (crc32, box->y2);
+
+ return crc32;
+}
+
+static uint32_t
+test_region_contains_rectangle (int i, int verbose)
+{
+ pixman_box32_t box;
+ pixman_box32_t rbox = { 0, 0, 0, 0 };
+ pixman_region32_t region;
+ uint32_t r, r1, r2, r3, r4, crc32;
+
+ prng_srand (i);
+
+ make_random_region (&region);
+
+ box.x1 = random_coord (&region, TRUE);
+ box.x2 = box.x1 + prng_rand ();
+ box.y1 = random_coord (&region, FALSE);
+ box.y2 = box.y1 + prng_rand ();
+
+ if (verbose)
+ {
+ int n_rects;
+ pixman_box32_t *boxes;
+
+ boxes = pixman_region32_rectangles (&region, &n_rects);
+
+ printf ("region:\n");
+ while (n_rects--)
+ print_box (boxes++);
+ printf ("box:\n");
+ print_box (&box);
+ }
+
+ crc32 = 0;
+
+ r1 = pixman_region32_contains_point (&region, box.x1, box.y1, &rbox);
+ crc32 = crc32_box32 (crc32, &rbox);
+ r2 = pixman_region32_contains_point (&region, box.x1, box.y2, &rbox);
+ crc32 = crc32_box32 (crc32, &rbox);
+ r3 = pixman_region32_contains_point (&region, box.x2, box.y1, &rbox);
+ crc32 = crc32_box32 (crc32, &rbox);
+ r4 = pixman_region32_contains_point (&region, box.x2, box.y2, &rbox);
+ crc32 = crc32_box32 (crc32, &rbox);
+
+ r = pixman_region32_contains_rectangle (&region, &box);
+ r = (i << 8) | (r << 4) | (r1 << 3) | (r2 << 2) | (r3 << 1) | (r4 << 0);
+
+ crc32 = compute_crc32_u32 (crc32, r);
+
+ if (verbose)
+ printf ("results: %d %d %d %d %d\n", (r & 0xf0) >> 4, r1, r2, r3, r4);
+
+ pixman_region32_fini (&region);
+
+ return crc32;
+}
+
+int
+main (int argc, const char *argv[])
+{
+ return fuzzer_test_main ("region_contains",
+ 1000000,
+ 0x548E0F3F,
+ test_region_contains_rectangle,
+ argc, argv);
+}
diff --git a/qemu/pixman/test/region-test.c b/qemu/pixman/test/region-test.c
new file mode 100644
index 000000000..bfc219bc7
--- /dev/null
+++ b/qemu/pixman/test/region-test.c
@@ -0,0 +1,125 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "utils.h"
+
+int
+main ()
+{
+ pixman_region32_t r1;
+ pixman_region32_t r2;
+ pixman_region32_t r3;
+ pixman_box32_t boxes[] = {
+ { 10, 10, 20, 20 },
+ { 30, 30, 30, 40 },
+ { 50, 45, 60, 44 },
+ };
+ pixman_box32_t boxes2[] = {
+ { 2, 6, 7, 6 },
+ { 4, 1, 6, 7 },
+ };
+ pixman_box32_t boxes3[] = {
+ { 2, 6, 7, 6 },
+ { 4, 1, 6, 1 },
+ };
+ int i, j;
+ pixman_box32_t *b;
+ pixman_image_t *image, *fill;
+ pixman_color_t white = {
+ 0xffff,
+ 0xffff,
+ 0xffff,
+ 0xffff
+ };
+
+ prng_srand (0);
+
+ /* This used to go into an infinite loop before pixman-region.c
+ * was fixed to not use explict "short" variables
+ */
+ pixman_region32_init_rect (&r1, 0, 0, 20, 64000);
+ pixman_region32_init_rect (&r2, 0, 0, 20, 64000);
+ pixman_region32_init_rect (&r3, 0, 0, 20, 64000);
+
+ pixman_region32_subtract (&r1, &r2, &r3);
+
+
+ /* This would produce a region containing an empty
+ * rectangle in it. Such regions are considered malformed,
+ * but using an empty rectangle for initialization should
+ * work.
+ */
+ pixman_region32_init_rects (&r1, boxes, 3);
+
+ b = pixman_region32_rectangles (&r1, &i);
+
+ assert (i == 1);
+
+ while (i--)
+ {
+ assert (b[i].x1 < b[i].x2);
+ assert (b[i].y1 < b[i].y2);
+ }
+
+ /* This would produce a rectangle containing the bounding box
+ * of the two rectangles. The correct result is to eliminate
+ * the broken rectangle.
+ */
+ pixman_region32_init_rects (&r1, boxes2, 2);
+
+ b = pixman_region32_rectangles (&r1, &i);
+
+ assert (i == 1);
+
+ assert (b[0].x1 == 4);
+ assert (b[0].y1 == 1);
+ assert (b[0].x2 == 6);
+ assert (b[0].y2 == 7);
+
+ /* This should produce an empty region */
+ pixman_region32_init_rects (&r1, boxes3, 2);
+
+ b = pixman_region32_rectangles (&r1, &i);
+
+ assert (i == 0);
+
+ fill = pixman_image_create_solid_fill (&white);
+ for (i = 0; i < 100; i++)
+ {
+ int image_size = 128;
+
+ pixman_region32_init (&r1);
+
+ /* Add some random rectangles */
+ for (j = 0; j < 64; j++)
+ pixman_region32_union_rect (&r1, &r1,
+ prng_rand_n (image_size),
+ prng_rand_n (image_size),
+ prng_rand_n (25),
+ prng_rand_n (25));
+
+ /* Clip to image size */
+ pixman_region32_init_rect (&r2, 0, 0, image_size, image_size);
+ pixman_region32_intersect (&r1, &r1, &r2);
+ pixman_region32_fini (&r2);
+
+ /* render region to a1 mask */
+ image = pixman_image_create_bits (PIXMAN_a1, image_size, image_size, NULL, 0);
+ pixman_image_set_clip_region32 (image, &r1);
+ pixman_image_composite32 (PIXMAN_OP_SRC,
+ fill, NULL, image,
+ 0, 0, 0, 0, 0, 0,
+ image_size, image_size);
+ pixman_region32_init_from_image (&r2, image);
+
+ pixman_image_unref (image);
+
+ assert (pixman_region32_equal (&r1, &r2));
+ pixman_region32_fini (&r1);
+ pixman_region32_fini (&r2);
+
+ }
+ pixman_image_unref (fill);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/region-translate-test.c b/qemu/pixman/test/region-translate-test.c
new file mode 100644
index 000000000..5a03027e8
--- /dev/null
+++ b/qemu/pixman/test/region-translate-test.c
@@ -0,0 +1,30 @@
+#include <assert.h>
+#include "utils.h"
+
+/* Pixman had a bug where 32bit regions where clipped to 16bit sizes when
+ * pixman_region32_translate() was called. This test exercises that bug.
+ */
+
+#define LARGE 32000
+
+int
+main (int argc, char **argv)
+{
+ pixman_box32_t rect = { -LARGE, -LARGE, LARGE, LARGE };
+ pixman_region32_t r1, r2;
+
+ pixman_region32_init_rects (&r1, &rect, 1);
+ pixman_region32_init_rect (&r2, rect.x1, rect.y1, rect.x2 - rect.x1, rect.y2 - rect.y1);
+
+ assert (pixman_region32_equal (&r1, &r2));
+
+ pixman_region32_translate (&r1, -LARGE, LARGE);
+ pixman_region32_translate (&r1, LARGE, -LARGE);
+
+ assert (pixman_region32_equal (&r1, &r2));
+
+ pixman_region32_fini (&r1);
+ pixman_region32_fini (&r2);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/rotate-test.c b/qemu/pixman/test/rotate-test.c
new file mode 100644
index 000000000..18ca60d9b
--- /dev/null
+++ b/qemu/pixman/test/rotate-test.c
@@ -0,0 +1,120 @@
+#include <stdlib.h>
+#include "utils.h"
+
+#define WIDTH 32
+#define HEIGHT 32
+
+static const pixman_format_code_t formats[] =
+{
+ PIXMAN_a8r8g8b8,
+ PIXMAN_a8b8g8r8,
+ PIXMAN_x8r8g8b8,
+ PIXMAN_x8b8g8r8,
+ PIXMAN_r5g6b5,
+ PIXMAN_b5g6r5,
+ PIXMAN_a8,
+ PIXMAN_a1,
+};
+
+static const pixman_op_t ops[] =
+{
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_ADD,
+};
+
+#define TRANSFORM(v00, v01, v10, v11) \
+ { { { v00, v01, WIDTH * pixman_fixed_1 / 2 }, \
+ { v10, v11, HEIGHT * pixman_fixed_1 / 2 }, \
+ { 0, 0, pixman_fixed_1 } } }
+
+#define F1 pixman_fixed_1
+
+static const pixman_transform_t transforms[] =
+{
+ TRANSFORM (0, -1, 1, 0), /* wrong 90 degree rotation */
+ TRANSFORM (0, 1, -1, 0), /* wrong 270 degree rotation */
+ TRANSFORM (1, 0, 0, 1), /* wrong identity */
+ TRANSFORM (-1, 0, 0, -1), /* wrong 180 degree rotation */
+ TRANSFORM (0, -F1, F1, 0), /* correct 90 degree rotation */
+ TRANSFORM (0, F1, -F1, 0), /* correct 270 degree rotation */
+ TRANSFORM (F1, 0, 0, F1), /* correct identity */
+ TRANSFORM (-F1, 0, 0, -F1), /* correct 180 degree rotation */
+};
+
+#define RANDOM_FORMAT() \
+ (formats[prng_rand_n (ARRAY_LENGTH (formats))])
+
+#define RANDOM_OP() \
+ (ops[prng_rand_n (ARRAY_LENGTH (ops))])
+
+#define RANDOM_TRANSFORM() \
+ (&(transforms[prng_rand_n (ARRAY_LENGTH (transforms))]))
+
+static void
+on_destroy (pixman_image_t *image, void *data)
+{
+ free (data);
+}
+
+static pixman_image_t *
+make_image (void)
+{
+ pixman_format_code_t format = RANDOM_FORMAT();
+ uint32_t *bytes, *orig;
+ pixman_image_t *image;
+ int stride;
+
+ orig = bytes = malloc (WIDTH * HEIGHT * 4);
+ prng_randmemset (bytes, WIDTH * HEIGHT * 4, 0);
+
+ stride = WIDTH * 4;
+ if (prng_rand_n (2) == 0)
+ {
+ bytes += (stride / 4) * (HEIGHT - 1);
+ stride = - stride;
+ }
+
+ image = pixman_image_create_bits (
+ format, WIDTH, HEIGHT, bytes, stride);
+
+ pixman_image_set_transform (image, RANDOM_TRANSFORM());
+ pixman_image_set_destroy_function (image, on_destroy, orig);
+ pixman_image_set_repeat (image, PIXMAN_REPEAT_NORMAL);
+
+ image_endian_swap (image);
+
+ return image;
+}
+
+static uint32_t
+test_transform (int testnum, int verbose)
+{
+ pixman_image_t *src, *dest;
+ uint32_t crc;
+
+ prng_srand (testnum);
+
+ src = make_image ();
+ dest = make_image ();
+
+ pixman_image_composite (RANDOM_OP(),
+ src, NULL, dest,
+ 0, 0, 0, 0, WIDTH / 2, HEIGHT / 2,
+ WIDTH, HEIGHT);
+
+ crc = compute_crc32_for_image (0, dest);
+
+ pixman_image_unref (src);
+ pixman_image_unref (dest);
+
+ return crc;
+}
+
+int
+main (int argc, const char *argv[])
+{
+ return fuzzer_test_main ("rotate", 15000,
+ 0x81E9EC2F,
+ test_transform, argc, argv);
+}
diff --git a/qemu/pixman/test/scaling-bench.c b/qemu/pixman/test/scaling-bench.c
new file mode 100644
index 000000000..365e79850
--- /dev/null
+++ b/qemu/pixman/test/scaling-bench.c
@@ -0,0 +1,80 @@
+#include <stdlib.h>
+#include "utils.h"
+
+#define SOURCE_WIDTH 320
+#define SOURCE_HEIGHT 240
+#define TEST_REPEATS 3
+
+static pixman_image_t *
+make_source (void)
+{
+ size_t n_bytes = (SOURCE_WIDTH + 2) * (SOURCE_HEIGHT + 2) * 4;
+ uint32_t *data = malloc (n_bytes);
+ pixman_image_t *source;
+
+ prng_randmemset (data, n_bytes, 0);
+
+ source = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, SOURCE_WIDTH + 2, SOURCE_HEIGHT + 2,
+ data,
+ (SOURCE_WIDTH + 2) * 4);
+
+ pixman_image_set_filter (source, PIXMAN_FILTER_BILINEAR, NULL, 0);
+
+ return source;
+}
+
+int
+main ()
+{
+ double scale;
+ pixman_image_t *src;
+
+ prng_srand (23874);
+
+ src = make_source ();
+ printf ("# %-6s %-22s %-14s %-12s\n",
+ "ratio",
+ "resolutions",
+ "time / ms",
+ "time per pixel / ns");
+ for (scale = 0.1; scale < 10.005; scale += 0.01)
+ {
+ int i;
+ int dest_width = SOURCE_WIDTH * scale + 0.5;
+ int dest_height = SOURCE_HEIGHT * scale + 0.5;
+ int dest_byte_stride = (dest_width * 4 + 15) & ~15;
+ pixman_fixed_t s = (1 / scale) * 65536.0 + 0.5;
+ pixman_transform_t transform;
+ pixman_image_t *dest;
+ double t1, t2, t = -1;
+ uint32_t *dest_buf = aligned_malloc (16, dest_byte_stride * dest_height);
+ memset (dest_buf, 0, dest_byte_stride * dest_height);
+
+ pixman_transform_init_scale (&transform, s, s);
+ pixman_image_set_transform (src, &transform);
+
+ dest = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, dest_width, dest_height, dest_buf, dest_byte_stride);
+
+ for (i = 0; i < TEST_REPEATS; i++)
+ {
+ t1 = gettime();
+ pixman_image_composite (
+ PIXMAN_OP_OVER, src, NULL, dest,
+ scale, scale, 0, 0, 0, 0, dest_width, dest_height);
+ t2 = gettime();
+ if (t < 0 || t2 - t1 < t)
+ t = t2 - t1;
+ }
+
+ printf ("%6.2f : %4dx%-4d => %4dx%-4d : %12.4f : %12.4f\n",
+ scale, SOURCE_WIDTH, SOURCE_HEIGHT, dest_width, dest_height,
+ t * 1000, (t / (dest_width * dest_height)) * 1000000000);
+
+ pixman_image_unref (dest);
+ free (dest_buf);
+ }
+
+ return 0;
+}
diff --git a/qemu/pixman/test/scaling-crash-test.c b/qemu/pixman/test/scaling-crash-test.c
new file mode 100644
index 000000000..0dac892b5
--- /dev/null
+++ b/qemu/pixman/test/scaling-crash-test.c
@@ -0,0 +1,219 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include "utils.h"
+
+/*
+ * We have a source image filled with solid color, set NORMAL or PAD repeat,
+ * and some transform which results in nearest neighbour scaling.
+ *
+ * The expected result is either that the destination image filled with this solid
+ * color or, if the transformation is such that we can't composite anything at
+ * all, that nothing has changed in the destination.
+ *
+ * The surrounding memory of the source image is a different solid color so that
+ * we are sure to get failures if we access it.
+ */
+static int
+run_test (int32_t dst_width,
+ int32_t dst_height,
+ int32_t src_width,
+ int32_t src_height,
+ int32_t src_x,
+ int32_t src_y,
+ int32_t scale_x,
+ int32_t scale_y,
+ pixman_filter_t filter,
+ pixman_repeat_t repeat)
+{
+ pixman_image_t * src_img;
+ pixman_image_t * dst_img;
+ pixman_transform_t transform;
+ uint32_t * srcbuf;
+ uint32_t * dstbuf;
+ pixman_color_t color_cc = { 0xcccc, 0xcccc, 0xcccc, 0xcccc };
+ pixman_image_t * solid;
+ int result;
+ int i;
+
+ static const pixman_fixed_t kernel[] =
+ {
+#define D(f) (pixman_double_to_fixed (f) + 0x0001)
+
+ pixman_int_to_fixed (5),
+ pixman_int_to_fixed (5),
+ D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0),
+ D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0),
+ D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0),
+ D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0),
+ D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0), D(1/25.0)
+ };
+
+ result = 0;
+
+ srcbuf = (uint32_t *)malloc ((src_width + 10) * (src_height + 10) * 4);
+ dstbuf = (uint32_t *)malloc (dst_width * dst_height * 4);
+
+ memset (srcbuf, 0x88, src_width * src_height * 4);
+ memset (dstbuf, 0x33, dst_width * dst_height * 4);
+
+ src_img = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, src_width, src_height,
+ srcbuf + (src_width + 10) * 5 + 5, (src_width + 10) * 4);
+
+ solid = pixman_image_create_solid_fill (&color_cc);
+ pixman_image_composite32 (PIXMAN_OP_SRC, solid, NULL, src_img,
+ 0, 0, 0, 0, 0, 0, src_width, src_height);
+ pixman_image_unref (solid);
+
+ dst_img = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, dst_width, dst_height, dstbuf, dst_width * 4);
+
+ pixman_transform_init_scale (&transform, scale_x, scale_y);
+ pixman_image_set_transform (src_img, &transform);
+ pixman_image_set_repeat (src_img, repeat);
+ if (filter == PIXMAN_FILTER_CONVOLUTION)
+ pixman_image_set_filter (src_img, filter, kernel, 27);
+ else
+ pixman_image_set_filter (src_img, filter, NULL, 0);
+
+ pixman_image_composite (PIXMAN_OP_SRC, src_img, NULL, dst_img,
+ src_x, src_y, 0, 0, 0, 0, dst_width, dst_height);
+
+ pixman_image_unref (src_img);
+ pixman_image_unref (dst_img);
+
+ for (i = 0; i < dst_width * dst_height; i++)
+ {
+ if (dstbuf[i] != 0xCCCCCCCC && dstbuf[i] != 0x33333333)
+ {
+ result = 1;
+ break;
+ }
+ }
+
+ free (srcbuf);
+ free (dstbuf);
+ return result;
+}
+
+typedef struct filter_info_t filter_info_t;
+struct filter_info_t
+{
+ pixman_filter_t value;
+ char name[28];
+};
+
+static const filter_info_t filters[] =
+{
+ { PIXMAN_FILTER_NEAREST, "NEAREST" },
+ { PIXMAN_FILTER_BILINEAR, "BILINEAR" },
+ { PIXMAN_FILTER_CONVOLUTION, "CONVOLUTION" },
+};
+
+typedef struct repeat_info_t repeat_info_t;
+struct repeat_info_t
+{
+ pixman_repeat_t value;
+ char name[28];
+};
+
+
+static const repeat_info_t repeats[] =
+{
+ { PIXMAN_REPEAT_PAD, "PAD" },
+ { PIXMAN_REPEAT_REFLECT, "REFLECT" },
+ { PIXMAN_REPEAT_NORMAL, "NORMAL" }
+};
+
+static int
+do_test (int32_t dst_size,
+ int32_t src_size,
+ int32_t src_offs,
+ int32_t scale_factor)
+{
+ int i, j;
+
+ for (i = 0; i < ARRAY_LENGTH (filters); ++i)
+ {
+ for (j = 0; j < ARRAY_LENGTH (repeats); ++j)
+ {
+ /* horizontal test */
+ if (run_test (dst_size, 1,
+ src_size, 1,
+ src_offs, 0,
+ scale_factor, 65536,
+ filters[i].value,
+ repeats[j].value) != 0)
+ {
+ printf ("Vertical test failed with %s filter and repeat mode %s\n",
+ filters[i].name, repeats[j].name);
+
+ return 1;
+ }
+
+ /* vertical test */
+ if (run_test (1, dst_size,
+ 1, src_size,
+ 0, src_offs,
+ 65536, scale_factor,
+ filters[i].value,
+ repeats[j].value) != 0)
+ {
+ printf ("Vertical test failed with %s filter and repeat mode %s\n",
+ filters[i].name, repeats[j].name);
+
+ return 1;
+ }
+ }
+ }
+
+ return 0;
+}
+
+int
+main (int argc, char *argv[])
+{
+ int i;
+
+ pixman_disable_out_of_bounds_workaround ();
+
+ /* can potentially crash */
+ assert (do_test (
+ 48000, 32767, 1, 65536 * 128) == 0);
+
+ /* can potentially get into a deadloop */
+ assert (do_test (
+ 16384, 65536, 32, 32768) == 0);
+
+ /* can potentially access memory outside source image buffer */
+ assert (do_test (
+ 10, 10, 0, 1) == 0);
+ assert (do_test (
+ 10, 10, 0, 0) == 0);
+
+ for (i = 0; i < 100; ++i)
+ {
+ pixman_fixed_t one_seventh =
+ (((pixman_fixed_48_16_t)pixman_fixed_1) << 16) / (7 << 16);
+
+ assert (do_test (
+ 1, 7, 3, one_seventh + i - 50) == 0);
+ }
+
+ for (i = 0; i < 100; ++i)
+ {
+ pixman_fixed_t scale =
+ (((pixman_fixed_48_16_t)pixman_fixed_1) << 16) / (32767 << 16);
+
+ assert (do_test (
+ 1, 32767, 16383, scale + i - 50) == 0);
+ }
+
+ /* can potentially provide invalid results (out of range matrix stuff) */
+ assert (do_test (
+ 48000, 32767, 16384, 65536 * 128) == 0);
+
+ return 0;
+}
diff --git a/qemu/pixman/test/scaling-helpers-test.c b/qemu/pixman/test/scaling-helpers-test.c
new file mode 100644
index 000000000..cd5ace0b2
--- /dev/null
+++ b/qemu/pixman/test/scaling-helpers-test.c
@@ -0,0 +1,92 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+#include "utils.h"
+#include "pixman-inlines.h"
+
+/* A trivial reference implementation for
+ * 'bilinear_pad_repeat_get_scanline_bounds'
+ */
+static void
+bilinear_pad_repeat_get_scanline_bounds_ref (int32_t source_image_width,
+ pixman_fixed_t vx_,
+ pixman_fixed_t unit_x,
+ int32_t * left_pad,
+ int32_t * left_tz,
+ int32_t * width,
+ int32_t * right_tz,
+ int32_t * right_pad)
+{
+ int w = *width;
+ int64_t vx = vx_;
+ *left_pad = 0;
+ *left_tz = 0;
+ *width = 0;
+ *right_tz = 0;
+ *right_pad = 0;
+ while (--w >= 0)
+ {
+ if (vx < 0)
+ {
+ if (vx + pixman_fixed_1 < 0)
+ *left_pad += 1;
+ else
+ *left_tz += 1;
+ }
+ else if (vx + pixman_fixed_1 >= pixman_int_to_fixed (source_image_width))
+ {
+ if (vx >= pixman_int_to_fixed (source_image_width))
+ *right_pad += 1;
+ else
+ *right_tz += 1;
+ }
+ else
+ {
+ *width += 1;
+ }
+ vx += unit_x;
+ }
+}
+
+int
+main (void)
+{
+ int i;
+ prng_srand (0);
+ for (i = 0; i < 10000; i++)
+ {
+ int32_t left_pad1, left_tz1, width1, right_tz1, right_pad1;
+ int32_t left_pad2, left_tz2, width2, right_tz2, right_pad2;
+ pixman_fixed_t vx = prng_rand_n(10000 << 16) - (3000 << 16);
+ int32_t width = prng_rand_n(10000);
+ int32_t source_image_width = prng_rand_n(10000) + 1;
+ pixman_fixed_t unit_x = prng_rand_n(10 << 16) + 1;
+ width1 = width2 = width;
+
+ bilinear_pad_repeat_get_scanline_bounds_ref (source_image_width,
+ vx,
+ unit_x,
+ &left_pad1,
+ &left_tz1,
+ &width1,
+ &right_tz1,
+ &right_pad1);
+
+ bilinear_pad_repeat_get_scanline_bounds (source_image_width,
+ vx,
+ unit_x,
+ &left_pad2,
+ &left_tz2,
+ &width2,
+ &right_tz2,
+ &right_pad2);
+
+ assert (left_pad1 == left_pad2);
+ assert (left_tz1 == left_tz2);
+ assert (width1 == width2);
+ assert (right_tz1 == right_tz2);
+ assert (right_pad1 == right_pad2);
+ }
+
+ return 0;
+}
diff --git a/qemu/pixman/test/scaling-test.c b/qemu/pixman/test/scaling-test.c
new file mode 100644
index 000000000..e2f7fa9f4
--- /dev/null
+++ b/qemu/pixman/test/scaling-test.c
@@ -0,0 +1,402 @@
+/*
+ * Test program, which can detect some problems with nearest neighbour
+ * and bilinear scaling in pixman. Testing is done by running lots
+ * of random SRC and OVER compositing operations a8r8g8b8, x8a8r8g8b8
+ * and r5g6b5 color formats.
+ *
+ * Script 'fuzzer-find-diff.pl' can be used to narrow down the problem in
+ * the case of test failure.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include "utils.h"
+
+#define MAX_SRC_WIDTH 48
+#define MAX_SRC_HEIGHT 8
+#define MAX_DST_WIDTH 48
+#define MAX_DST_HEIGHT 8
+#define MAX_STRIDE 4
+
+/*
+ * Composite operation with pseudorandom images
+ */
+
+static pixman_format_code_t
+get_format (int bpp)
+{
+ if (bpp == 4)
+ {
+ switch (prng_rand_n (4))
+ {
+ default:
+ case 0:
+ return PIXMAN_a8r8g8b8;
+ case 1:
+ return PIXMAN_x8r8g8b8;
+ case 2:
+ return PIXMAN_a8b8g8r8;
+ case 3:
+ return PIXMAN_x8b8g8r8;
+ }
+ }
+ else
+ {
+ return PIXMAN_r5g6b5;
+ }
+}
+
+uint32_t
+test_composite (int testnum,
+ int verbose)
+{
+ int i;
+ pixman_image_t * src_img;
+ pixman_image_t * mask_img;
+ pixman_image_t * dst_img;
+ pixman_transform_t transform;
+ pixman_region16_t clip;
+ int src_width, src_height;
+ int mask_width, mask_height;
+ int dst_width, dst_height;
+ int src_stride, mask_stride, dst_stride;
+ int src_x, src_y;
+ int mask_x, mask_y;
+ int dst_x, dst_y;
+ int src_bpp;
+ int mask_bpp = 1;
+ int dst_bpp;
+ int w, h;
+ pixman_fixed_t scale_x = 65536, scale_y = 65536;
+ pixman_fixed_t translate_x = 0, translate_y = 0;
+ pixman_fixed_t mask_scale_x = 65536, mask_scale_y = 65536;
+ pixman_fixed_t mask_translate_x = 0, mask_translate_y = 0;
+ pixman_op_t op;
+ pixman_repeat_t repeat = PIXMAN_REPEAT_NONE;
+ pixman_repeat_t mask_repeat = PIXMAN_REPEAT_NONE;
+ pixman_format_code_t src_fmt, dst_fmt;
+ uint32_t * srcbuf;
+ uint32_t * dstbuf;
+ uint32_t * maskbuf;
+ uint32_t crc32;
+ FLOAT_REGS_CORRUPTION_DETECTOR_START ();
+
+ prng_srand (testnum);
+
+ src_bpp = (prng_rand_n (2) == 0) ? 2 : 4;
+ dst_bpp = (prng_rand_n (2) == 0) ? 2 : 4;
+ switch (prng_rand_n (3))
+ {
+ case 0:
+ op = PIXMAN_OP_SRC;
+ break;
+ case 1:
+ op = PIXMAN_OP_OVER;
+ break;
+ default:
+ op = PIXMAN_OP_ADD;
+ break;
+ }
+
+ src_width = prng_rand_n (MAX_SRC_WIDTH) + 1;
+ src_height = prng_rand_n (MAX_SRC_HEIGHT) + 1;
+
+ if (prng_rand_n (2))
+ {
+ mask_width = prng_rand_n (MAX_SRC_WIDTH) + 1;
+ mask_height = prng_rand_n (MAX_SRC_HEIGHT) + 1;
+ }
+ else
+ {
+ mask_width = mask_height = 1;
+ }
+
+ dst_width = prng_rand_n (MAX_DST_WIDTH) + 1;
+ dst_height = prng_rand_n (MAX_DST_HEIGHT) + 1;
+ src_stride = src_width * src_bpp + prng_rand_n (MAX_STRIDE) * src_bpp;
+ mask_stride = mask_width * mask_bpp + prng_rand_n (MAX_STRIDE) * mask_bpp;
+ dst_stride = dst_width * dst_bpp + prng_rand_n (MAX_STRIDE) * dst_bpp;
+
+ if (src_stride & 3)
+ src_stride += 2;
+
+ if (mask_stride & 1)
+ mask_stride += 1;
+ if (mask_stride & 2)
+ mask_stride += 2;
+
+ if (dst_stride & 3)
+ dst_stride += 2;
+
+ src_x = -(src_width / 4) + prng_rand_n (src_width * 3 / 2);
+ src_y = -(src_height / 4) + prng_rand_n (src_height * 3 / 2);
+ mask_x = -(mask_width / 4) + prng_rand_n (mask_width * 3 / 2);
+ mask_y = -(mask_height / 4) + prng_rand_n (mask_height * 3 / 2);
+ dst_x = -(dst_width / 4) + prng_rand_n (dst_width * 3 / 2);
+ dst_y = -(dst_height / 4) + prng_rand_n (dst_height * 3 / 2);
+ w = prng_rand_n (dst_width * 3 / 2 - dst_x);
+ h = prng_rand_n (dst_height * 3 / 2 - dst_y);
+
+ srcbuf = (uint32_t *)malloc (src_stride * src_height);
+ maskbuf = (uint32_t *)malloc (mask_stride * mask_height);
+ dstbuf = (uint32_t *)malloc (dst_stride * dst_height);
+
+ prng_randmemset (srcbuf, src_stride * src_height, 0);
+ prng_randmemset (maskbuf, mask_stride * mask_height, 0);
+ prng_randmemset (dstbuf, dst_stride * dst_height, 0);
+
+ src_fmt = get_format (src_bpp);
+ dst_fmt = get_format (dst_bpp);
+
+ if (prng_rand_n (2))
+ {
+ srcbuf += (src_stride / 4) * (src_height - 1);
+ src_stride = - src_stride;
+ }
+
+ if (prng_rand_n (2))
+ {
+ maskbuf += (mask_stride / 4) * (mask_height - 1);
+ mask_stride = - mask_stride;
+ }
+
+ if (prng_rand_n (2))
+ {
+ dstbuf += (dst_stride / 4) * (dst_height - 1);
+ dst_stride = - dst_stride;
+ }
+
+ src_img = pixman_image_create_bits (
+ src_fmt, src_width, src_height, srcbuf, src_stride);
+
+ mask_img = pixman_image_create_bits (
+ PIXMAN_a8, mask_width, mask_height, maskbuf, mask_stride);
+
+ dst_img = pixman_image_create_bits (
+ dst_fmt, dst_width, dst_height, dstbuf, dst_stride);
+
+ image_endian_swap (src_img);
+ image_endian_swap (dst_img);
+
+ if (prng_rand_n (4) > 0)
+ {
+ scale_x = -32768 * 3 + prng_rand_n (65536 * 5);
+ scale_y = -32768 * 3 + prng_rand_n (65536 * 5);
+ translate_x = prng_rand_n (65536);
+ translate_y = prng_rand_n (65536);
+ pixman_transform_init_scale (&transform, scale_x, scale_y);
+ pixman_transform_translate (&transform, NULL, translate_x, translate_y);
+ pixman_image_set_transform (src_img, &transform);
+ }
+
+ if (prng_rand_n (2) > 0)
+ {
+ mask_scale_x = -32768 * 3 + prng_rand_n (65536 * 5);
+ mask_scale_y = -32768 * 3 + prng_rand_n (65536 * 5);
+ mask_translate_x = prng_rand_n (65536);
+ mask_translate_y = prng_rand_n (65536);
+ pixman_transform_init_scale (&transform, mask_scale_x, mask_scale_y);
+ pixman_transform_translate (&transform, NULL, mask_translate_x, mask_translate_y);
+ pixman_image_set_transform (mask_img, &transform);
+ }
+
+ switch (prng_rand_n (4))
+ {
+ case 0:
+ mask_repeat = PIXMAN_REPEAT_NONE;
+ break;
+
+ case 1:
+ mask_repeat = PIXMAN_REPEAT_NORMAL;
+ break;
+
+ case 2:
+ mask_repeat = PIXMAN_REPEAT_PAD;
+ break;
+
+ case 3:
+ mask_repeat = PIXMAN_REPEAT_REFLECT;
+ break;
+
+ default:
+ break;
+ }
+ pixman_image_set_repeat (mask_img, mask_repeat);
+
+ switch (prng_rand_n (4))
+ {
+ case 0:
+ repeat = PIXMAN_REPEAT_NONE;
+ break;
+
+ case 1:
+ repeat = PIXMAN_REPEAT_NORMAL;
+ break;
+
+ case 2:
+ repeat = PIXMAN_REPEAT_PAD;
+ break;
+
+ case 3:
+ repeat = PIXMAN_REPEAT_REFLECT;
+ break;
+
+ default:
+ break;
+ }
+ pixman_image_set_repeat (src_img, repeat);
+
+ if (prng_rand_n (2))
+ pixman_image_set_filter (src_img, PIXMAN_FILTER_NEAREST, NULL, 0);
+ else
+ pixman_image_set_filter (src_img, PIXMAN_FILTER_BILINEAR, NULL, 0);
+
+ if (prng_rand_n (2))
+ pixman_image_set_filter (mask_img, PIXMAN_FILTER_NEAREST, NULL, 0);
+ else
+ pixman_image_set_filter (mask_img, PIXMAN_FILTER_BILINEAR, NULL, 0);
+
+ if (verbose)
+ {
+ printf ("src_fmt=%s, dst_fmt=%s\n",
+ format_name (src_fmt), format_name (dst_fmt));
+ printf ("op=%s, scale_x=%d, scale_y=%d, repeat=%d\n",
+ operator_name (op), scale_x, scale_y, repeat);
+ printf ("translate_x=%d, translate_y=%d\n",
+ translate_x, translate_y);
+ printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n",
+ src_width, src_height, dst_width, dst_height);
+ printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n",
+ src_x, src_y, dst_x, dst_y);
+ printf ("w=%d, h=%d\n", w, h);
+ }
+
+ if (prng_rand_n (8) == 0)
+ {
+ pixman_box16_t clip_boxes[2];
+ int n = prng_rand_n (2) + 1;
+
+ for (i = 0; i < n; i++)
+ {
+ clip_boxes[i].x1 = prng_rand_n (src_width);
+ clip_boxes[i].y1 = prng_rand_n (src_height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + prng_rand_n (src_width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + prng_rand_n (src_height - clip_boxes[i].y1);
+
+ if (verbose)
+ {
+ printf ("source clip box: [%d,%d-%d,%d]\n",
+ clip_boxes[i].x1, clip_boxes[i].y1,
+ clip_boxes[i].x2, clip_boxes[i].y2);
+ }
+ }
+
+ pixman_region_init_rects (&clip, clip_boxes, n);
+ pixman_image_set_clip_region (src_img, &clip);
+ pixman_image_set_source_clipping (src_img, 1);
+ pixman_region_fini (&clip);
+ }
+
+ if (prng_rand_n (8) == 0)
+ {
+ pixman_box16_t clip_boxes[2];
+ int n = prng_rand_n (2) + 1;
+
+ for (i = 0; i < n; i++)
+ {
+ clip_boxes[i].x1 = prng_rand_n (mask_width);
+ clip_boxes[i].y1 = prng_rand_n (mask_height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + prng_rand_n (mask_width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + prng_rand_n (mask_height - clip_boxes[i].y1);
+
+ if (verbose)
+ {
+ printf ("mask clip box: [%d,%d-%d,%d]\n",
+ clip_boxes[i].x1, clip_boxes[i].y1,
+ clip_boxes[i].x2, clip_boxes[i].y2);
+ }
+ }
+
+ pixman_region_init_rects (&clip, clip_boxes, n);
+ pixman_image_set_clip_region (mask_img, &clip);
+ pixman_image_set_source_clipping (mask_img, 1);
+ pixman_region_fini (&clip);
+ }
+
+ if (prng_rand_n (8) == 0)
+ {
+ pixman_box16_t clip_boxes[2];
+ int n = prng_rand_n (2) + 1;
+ for (i = 0; i < n; i++)
+ {
+ clip_boxes[i].x1 = prng_rand_n (dst_width);
+ clip_boxes[i].y1 = prng_rand_n (dst_height);
+ clip_boxes[i].x2 =
+ clip_boxes[i].x1 + prng_rand_n (dst_width - clip_boxes[i].x1);
+ clip_boxes[i].y2 =
+ clip_boxes[i].y1 + prng_rand_n (dst_height - clip_boxes[i].y1);
+
+ if (verbose)
+ {
+ printf ("destination clip box: [%d,%d-%d,%d]\n",
+ clip_boxes[i].x1, clip_boxes[i].y1,
+ clip_boxes[i].x2, clip_boxes[i].y2);
+ }
+ }
+ pixman_region_init_rects (&clip, clip_boxes, n);
+ pixman_image_set_clip_region (dst_img, &clip);
+ pixman_region_fini (&clip);
+ }
+
+ if (prng_rand_n (2) == 0)
+ pixman_image_composite (op, src_img, NULL, dst_img,
+ src_x, src_y, 0, 0, dst_x, dst_y, w, h);
+ else
+ pixman_image_composite (op, src_img, mask_img, dst_img,
+ src_x, src_y, mask_x, mask_y, dst_x, dst_y, w, h);
+
+ crc32 = compute_crc32_for_image (0, dst_img);
+
+ if (verbose)
+ print_image (dst_img);
+
+ pixman_image_unref (src_img);
+ pixman_image_unref (mask_img);
+ pixman_image_unref (dst_img);
+
+ if (src_stride < 0)
+ srcbuf += (src_stride / 4) * (src_height - 1);
+
+ if (mask_stride < 0)
+ maskbuf += (mask_stride / 4) * (mask_height - 1);
+
+ if (dst_stride < 0)
+ dstbuf += (dst_stride / 4) * (dst_height - 1);
+
+ free (srcbuf);
+ free (maskbuf);
+ free (dstbuf);
+
+ FLOAT_REGS_CORRUPTION_DETECTOR_FINISH ();
+ return crc32;
+}
+
+#if BILINEAR_INTERPOLATION_BITS == 7
+#define CHECKSUM 0x92E0F068
+#elif BILINEAR_INTERPOLATION_BITS == 4
+#define CHECKSUM 0x8EFFA1E5
+#else
+#define CHECKSUM 0x00000000
+#endif
+
+int
+main (int argc, const char *argv[])
+{
+ pixman_disable_out_of_bounds_workaround ();
+
+ return fuzzer_test_main("scaling", 8000000, CHECKSUM,
+ test_composite, argc, argv);
+}
diff --git a/qemu/pixman/test/stress-test.c b/qemu/pixman/test/stress-test.c
new file mode 100644
index 000000000..1f03c7543
--- /dev/null
+++ b/qemu/pixman/test/stress-test.c
@@ -0,0 +1,1040 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+#include <sys/types.h>
+
+#if 0
+#define fence_malloc malloc
+#define fence_free free
+#define make_random_bytes malloc
+#endif
+
+static const pixman_format_code_t image_formats[] =
+{
+ PIXMAN_a8r8g8b8,
+ PIXMAN_x8r8g8b8,
+ PIXMAN_r5g6b5,
+ PIXMAN_r3g3b2,
+ PIXMAN_a8,
+ PIXMAN_a8b8g8r8,
+ PIXMAN_x8b8g8r8,
+ PIXMAN_b8g8r8a8,
+ PIXMAN_b8g8r8x8,
+ PIXMAN_r8g8b8a8,
+ PIXMAN_r8g8b8x8,
+ PIXMAN_x14r6g6b6,
+ PIXMAN_r8g8b8,
+ PIXMAN_b8g8r8,
+ PIXMAN_a8r8g8b8_sRGB,
+ PIXMAN_r5g6b5,
+ PIXMAN_b5g6r5,
+ PIXMAN_x2r10g10b10,
+ PIXMAN_a2r10g10b10,
+ PIXMAN_x2b10g10r10,
+ PIXMAN_a2b10g10r10,
+ PIXMAN_a1r5g5b5,
+ PIXMAN_x1r5g5b5,
+ PIXMAN_a1b5g5r5,
+ PIXMAN_x1b5g5r5,
+ PIXMAN_a4r4g4b4,
+ PIXMAN_x4r4g4b4,
+ PIXMAN_a4b4g4r4,
+ PIXMAN_x4b4g4r4,
+ PIXMAN_a8,
+ PIXMAN_r3g3b2,
+ PIXMAN_b2g3r3,
+ PIXMAN_a2r2g2b2,
+ PIXMAN_a2b2g2r2,
+ PIXMAN_c8,
+ PIXMAN_g8,
+ PIXMAN_x4c4,
+ PIXMAN_x4g4,
+ PIXMAN_c4,
+ PIXMAN_g4,
+ PIXMAN_g1,
+ PIXMAN_x4a4,
+ PIXMAN_a4,
+ PIXMAN_r1g2b1,
+ PIXMAN_b1g2r1,
+ PIXMAN_a1r1g1b1,
+ PIXMAN_a1b1g1r1,
+ PIXMAN_a1
+};
+
+static pixman_filter_t filters[] =
+{
+ PIXMAN_FILTER_NEAREST,
+ PIXMAN_FILTER_BILINEAR,
+ PIXMAN_FILTER_FAST,
+ PIXMAN_FILTER_GOOD,
+ PIXMAN_FILTER_BEST,
+ PIXMAN_FILTER_CONVOLUTION
+};
+
+static int
+get_size (void)
+{
+ switch (prng_rand_n (28))
+ {
+ case 0:
+ return 1;
+
+ case 1:
+ return 2;
+
+ default:
+ case 2:
+ return prng_rand_n (100);
+
+ case 4:
+ return prng_rand_n (2000) + 1000;
+
+ case 5:
+ return 65535;
+
+ case 6:
+ return 65536;
+
+ case 7:
+ return prng_rand_n (64000) + 63000;
+ }
+}
+
+static void
+destroy (pixman_image_t *image, void *data)
+{
+ if (image->type == BITS && image->bits.free_me != image->bits.bits)
+ {
+ uint32_t *bits;
+
+ if (image->bits.bits != (void *)0x01)
+ {
+ bits = image->bits.bits;
+
+ if (image->bits.rowstride < 0)
+ bits -= (- image->bits.rowstride * (image->bits.height - 1));
+
+ fence_free (bits);
+ }
+ }
+
+ free (data);
+}
+
+static uint32_t
+real_reader (const void *src, int size)
+{
+ switch (size)
+ {
+ case 1:
+ return *(uint8_t *)src;
+ case 2:
+ return *(uint16_t *)src;
+ case 4:
+ return *(uint32_t *)src;
+ default:
+ assert (0);
+ return 0; /* silence MSVC */
+ }
+}
+
+static void
+real_writer (void *src, uint32_t value, int size)
+{
+ switch (size)
+ {
+ case 1:
+ *(uint8_t *)src = value;
+ break;
+
+ case 2:
+ *(uint16_t *)src = value;
+ break;
+
+ case 4:
+ *(uint32_t *)src = value;
+ break;
+
+ default:
+ assert (0);
+ break;
+ }
+}
+
+static uint32_t
+fake_reader (const void *src, int size)
+{
+ uint32_t r = prng_rand ();
+
+ assert (size == 1 || size == 2 || size == 4);
+
+ return r >> (32 - (size * 8));
+}
+
+static void
+fake_writer (void *src, uint32_t value, int size)
+{
+ assert (size == 1 || size == 2 || size == 4);
+}
+
+static int32_t
+log_rand (void)
+{
+ uint32_t mask;
+
+ mask = (1 << prng_rand_n (10)) - 1;
+
+ return (prng_rand () & mask) - (mask >> 1);
+}
+
+static int32_t
+rand_x (pixman_image_t *image)
+{
+ if (image->type == BITS)
+ return prng_rand_n (image->bits.width);
+ else
+ return log_rand ();
+}
+
+static int32_t
+rand_y (pixman_image_t *image)
+{
+ if (image->type == BITS)
+ return prng_rand_n (image->bits.height);
+ else
+ return log_rand ();
+}
+
+typedef enum
+{
+ DONT_CARE,
+ PREFER_ALPHA,
+ REQUIRE_ALPHA
+} alpha_preference_t;
+
+static pixman_format_code_t
+random_format (alpha_preference_t alpha)
+{
+ pixman_format_code_t format;
+ int n = prng_rand_n (ARRAY_LENGTH (image_formats));
+
+ if (alpha >= PREFER_ALPHA &&
+ (alpha == REQUIRE_ALPHA || prng_rand_n (4) != 0))
+ {
+ do
+ {
+ format = image_formats[n++ % ARRAY_LENGTH (image_formats)];
+ } while (PIXMAN_FORMAT_TYPE (format) != PIXMAN_TYPE_A);
+ }
+ else
+ {
+ format = image_formats[n];
+ }
+
+ return format;
+}
+
+static pixman_image_t *
+create_random_bits_image (alpha_preference_t alpha_preference)
+{
+ pixman_format_code_t format;
+ pixman_indexed_t *indexed;
+ pixman_image_t *image;
+ int width, height, stride;
+ uint32_t *bits;
+ pixman_read_memory_func_t read_func = NULL;
+ pixman_write_memory_func_t write_func = NULL;
+ pixman_filter_t filter;
+ pixman_fixed_t *coefficients = NULL;
+ int n_coefficients = 0;
+
+ /* format */
+ format = random_format (alpha_preference);
+
+ indexed = NULL;
+ if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_COLOR)
+ {
+ indexed = malloc (sizeof (pixman_indexed_t));
+
+ initialize_palette (indexed, PIXMAN_FORMAT_BPP (format), TRUE);
+ }
+ else if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_GRAY)
+ {
+ indexed = malloc (sizeof (pixman_indexed_t));
+
+ initialize_palette (indexed, PIXMAN_FORMAT_BPP (format), FALSE);
+ }
+ else
+ {
+ indexed = NULL;
+ }
+
+ /* size */
+ width = get_size ();
+ height = get_size ();
+
+ while ((uint64_t)width * height > 200000)
+ {
+ if (prng_rand_n(2) == 0)
+ height = 200000 / width;
+ else
+ width = 200000 / height;
+ }
+
+ if (height == 0)
+ height = 1;
+ if (width == 0)
+ width = 1;
+
+ /* bits */
+ switch (prng_rand_n (7))
+ {
+ default:
+ case 0:
+ stride = width * PIXMAN_FORMAT_BPP (format) + prng_rand_n (17);
+ stride = (stride + 3) & (~3);
+ bits = (uint32_t *)make_random_bytes (height * stride);
+ break;
+
+ case 1:
+ stride = 0;
+ bits = NULL;
+ break;
+
+ case 2: /* Zero-filled */
+ stride = width * PIXMAN_FORMAT_BPP (format) + prng_rand_n (17);
+ stride = (stride + 3) & (~3);
+ bits = fence_malloc (height * stride);
+ if (!bits)
+ return NULL;
+ memset (bits, 0, height * stride);
+ break;
+
+ case 3: /* Filled with 0xFF */
+ stride = width * PIXMAN_FORMAT_BPP (format) + prng_rand_n (17);
+ stride = (stride + 3) & (~3);
+ bits = fence_malloc (height * stride);
+ if (!bits)
+ return NULL;
+ memset (bits, 0xff, height * stride);
+ break;
+
+ case 4: /* bits is a bad pointer, has read/write functions */
+ stride = 232;
+ bits = (void *)0x01;
+ read_func = fake_reader;
+ write_func = fake_writer;
+ break;
+
+ case 5: /* bits is a real pointer, has read/write functions */
+ stride = width * PIXMAN_FORMAT_BPP (format) + prng_rand_n (17);
+ stride = (stride + 3) & (~3);
+ bits = fence_malloc (height * stride);
+ if (!bits)
+ return NULL;
+ memset (bits, 0xff, height * stride);
+ read_func = real_reader;
+ write_func = real_writer;
+ break;
+
+ case 6: /* bits is a real pointer, stride is negative */
+ stride = (width * PIXMAN_FORMAT_BPP (format) + prng_rand_n (17));
+ stride = (stride + 3) & (~3);
+ bits = (uint32_t *)make_random_bytes (height * stride);
+ if (!bits)
+ return NULL;
+ bits += ((height - 1) * stride) / 4;
+ stride = - stride;
+ break;
+ }
+
+ /* Filter */
+ filter = filters[prng_rand_n (ARRAY_LENGTH (filters))];
+ if (filter == PIXMAN_FILTER_CONVOLUTION)
+ {
+ int width = prng_rand_n (3);
+ int height = prng_rand_n (4);
+
+ n_coefficients = width * height + 2;
+ coefficients = malloc (n_coefficients * sizeof (pixman_fixed_t));
+
+ if (coefficients)
+ {
+ int i;
+
+ for (i = 0; i < width * height; ++i)
+ coefficients[i + 2] = prng_rand();
+
+ coefficients[0] = width << 16;
+ coefficients[1] = height << 16;
+ }
+ else
+ {
+ filter = PIXMAN_FILTER_BEST;
+ }
+ }
+
+ /* Finally create the image */
+ image = pixman_image_create_bits (format, width, height, bits, stride);
+ if (!image)
+ return NULL;
+
+ pixman_image_set_indexed (image, indexed);
+ pixman_image_set_destroy_function (image, destroy, indexed);
+ pixman_image_set_accessors (image, read_func, write_func);
+ pixman_image_set_filter (image, filter, coefficients, n_coefficients);
+
+ return image;
+}
+
+static pixman_repeat_t repeats[] =
+{
+ PIXMAN_REPEAT_NONE,
+ PIXMAN_REPEAT_NORMAL,
+ PIXMAN_REPEAT_REFLECT,
+ PIXMAN_REPEAT_PAD
+};
+
+static uint32_t
+absolute (int32_t i)
+{
+ return i < 0? -i : i;
+}
+
+static void
+set_general_properties (pixman_image_t *image, pixman_bool_t allow_alpha_map)
+{
+ pixman_repeat_t repeat;
+
+ /* Set properties that are generic to all images */
+
+ /* Repeat */
+ repeat = repeats[prng_rand_n (ARRAY_LENGTH (repeats))];
+ pixman_image_set_repeat (image, repeat);
+
+ /* Alpha map */
+ if (allow_alpha_map && prng_rand_n (4) == 0)
+ {
+ pixman_image_t *alpha_map;
+ int16_t x, y;
+
+ alpha_map = create_random_bits_image (DONT_CARE);
+
+ if (alpha_map)
+ {
+ set_general_properties (alpha_map, FALSE);
+
+ x = rand_x (image) - image->bits.width / 2;
+ y = rand_y (image) - image->bits.height / 2;
+
+ pixman_image_set_alpha_map (image, alpha_map, x, y);
+
+ pixman_image_unref (alpha_map);
+ }
+ }
+
+ /* Component alpha */
+ pixman_image_set_component_alpha (image, prng_rand_n (3) == 0);
+
+ /* Clip region */
+ if (prng_rand_n (8) < 2)
+ {
+ pixman_region32_t region;
+ int i, n_rects;
+
+ pixman_region32_init (&region);
+
+ switch (prng_rand_n (12))
+ {
+ case 0:
+ n_rects = 0;
+ break;
+
+ case 1: case 2: case 3:
+ n_rects = 1;
+ break;
+
+ case 4: case 5:
+ n_rects = 2;
+ break;
+
+ case 6: case 7:
+ n_rects = 3;
+ break;
+
+ default:
+ n_rects = prng_rand_n (100);
+ break;
+ }
+
+ for (i = 0; i < n_rects; ++i)
+ {
+ uint32_t width, height;
+ int x, y;
+
+ x = log_rand();
+ y = log_rand();
+ width = absolute (log_rand ()) + 1;
+ height = absolute (log_rand ()) + 1;
+
+ pixman_region32_union_rect (
+ &region, &region, x, y, width, height);
+ }
+
+ if (image->type == BITS && prng_rand_n (8) != 0)
+ {
+ uint32_t width, height;
+ int x, y;
+ int i;
+
+ /* Also add a couple of clip rectangles inside the image
+ * so that compositing will actually take place.
+ */
+ for (i = 0; i < 5; ++i)
+ {
+ x = prng_rand_n (2 * image->bits.width) - image->bits.width;
+ y = prng_rand_n (2 * image->bits.height) - image->bits.height;
+ width = prng_rand_n (image->bits.width) - x + 10;
+ height = prng_rand_n (image->bits.height) - y + 10;
+
+ if (width + x < x)
+ width = INT32_MAX - x;
+ if (height + y < y)
+ height = INT32_MAX - y;
+
+ pixman_region32_union_rect (
+ &region, &region, x, y, width, height);
+ }
+ }
+
+ pixman_image_set_clip_region32 (image, &region);
+
+ pixman_region32_fini (&region);
+ }
+
+ /* Whether source clipping is enabled */
+ pixman_image_set_source_clipping (image, !!prng_rand_n (2));
+
+ /* Client clip */
+ pixman_image_set_has_client_clip (image, !!prng_rand_n (2));
+
+ /* Transform */
+ if (prng_rand_n (5) < 2)
+ {
+ pixman_transform_t xform;
+ int i, j, k;
+ uint32_t tx, ty, sx, sy;
+ uint32_t c, s;
+
+ memset (&xform, 0, sizeof xform);
+ xform.matrix[0][0] = pixman_fixed_1;
+ xform.matrix[1][1] = pixman_fixed_1;
+ xform.matrix[2][2] = pixman_fixed_1;
+
+ for (k = 0; k < 3; ++k)
+ {
+ switch (prng_rand_n (4))
+ {
+ case 0:
+ /* rotation */
+ c = prng_rand_n (2 * 65536) - 65536;
+ s = prng_rand_n (2 * 65536) - 65536;
+ pixman_transform_rotate (&xform, NULL, c, s);
+ break;
+
+ case 1:
+ /* translation */
+ tx = prng_rand();
+ ty = prng_rand();
+ pixman_transform_translate (&xform, NULL, tx, ty);
+ break;
+
+ case 2:
+ /* scale */
+ sx = prng_rand();
+ sy = prng_rand();
+ pixman_transform_scale (&xform, NULL, sx, sy);
+ break;
+
+ case 3:
+ if (prng_rand_n (16) == 0)
+ {
+ /* random */
+ for (i = 0; i < 3; ++i)
+ for (j = 0; j < 3; ++j)
+ xform.matrix[i][j] = prng_rand();
+ break;
+ }
+ else if (prng_rand_n (16) == 0)
+ {
+ /* zero */
+ memset (&xform, 0, sizeof xform);
+ }
+ break;
+ }
+ }
+
+ pixman_image_set_transform (image, &xform);
+ }
+}
+
+static pixman_color_t
+random_color (void)
+{
+ pixman_color_t color =
+ {
+ prng_rand() & 0xffff,
+ prng_rand() & 0xffff,
+ prng_rand() & 0xffff,
+ prng_rand() & 0xffff,
+ };
+
+ return color;
+}
+
+
+static pixman_image_t *
+create_random_solid_image (void)
+{
+ pixman_color_t color = random_color();
+ pixman_image_t *image = pixman_image_create_solid_fill (&color);
+
+ return image;
+}
+
+static pixman_gradient_stop_t *
+create_random_stops (int *n_stops)
+{
+ pixman_fixed_t step;
+ pixman_fixed_t s;
+ int i;
+ pixman_gradient_stop_t *stops;
+
+ *n_stops = prng_rand_n (50) + 1;
+
+ step = pixman_fixed_1 / *n_stops;
+
+ stops = malloc (*n_stops * sizeof (pixman_gradient_stop_t));
+
+ s = 0;
+ for (i = 0; i < (*n_stops) - 1; ++i)
+ {
+ stops[i].x = s;
+ stops[i].color = random_color();
+
+ s += step;
+ }
+
+ stops[*n_stops - 1].x = pixman_fixed_1;
+ stops[*n_stops - 1].color = random_color();
+
+ return stops;
+}
+
+static pixman_point_fixed_t
+create_random_point (void)
+{
+ pixman_point_fixed_t p;
+
+ p.x = log_rand ();
+ p.y = log_rand ();
+
+ return p;
+}
+
+static pixman_image_t *
+create_random_linear_image (void)
+{
+ int n_stops;
+ pixman_gradient_stop_t *stops;
+ pixman_point_fixed_t p1, p2;
+ pixman_image_t *result;
+
+ stops = create_random_stops (&n_stops);
+ if (!stops)
+ return NULL;
+
+ p1 = create_random_point ();
+ p2 = create_random_point ();
+
+ result = pixman_image_create_linear_gradient (&p1, &p2, stops, n_stops);
+
+ free (stops);
+
+ return result;
+}
+
+static pixman_image_t *
+create_random_radial_image (void)
+{
+ int n_stops;
+ pixman_gradient_stop_t *stops;
+ pixman_point_fixed_t inner_c, outer_c;
+ pixman_fixed_t inner_r, outer_r;
+ pixman_image_t *result;
+
+ inner_c = create_random_point();
+ outer_c = create_random_point();
+ inner_r = prng_rand();
+ outer_r = prng_rand();
+
+ stops = create_random_stops (&n_stops);
+
+ if (!stops)
+ return NULL;
+
+ result = pixman_image_create_radial_gradient (
+ &inner_c, &outer_c, inner_r, outer_r, stops, n_stops);
+
+ free (stops);
+
+ return result;
+}
+
+static pixman_image_t *
+create_random_conical_image (void)
+{
+ pixman_gradient_stop_t *stops;
+ int n_stops;
+ pixman_point_fixed_t c;
+ pixman_fixed_t angle;
+ pixman_image_t *result;
+
+ c = create_random_point();
+ angle = prng_rand();
+
+ stops = create_random_stops (&n_stops);
+
+ if (!stops)
+ return NULL;
+
+ result = pixman_image_create_conical_gradient (&c, angle, stops, n_stops);
+
+ free (stops);
+
+ return result;
+}
+
+static pixman_image_t *
+create_random_image (void)
+{
+ pixman_image_t *result;
+
+ switch (prng_rand_n (5))
+ {
+ default:
+ case 0:
+ result = create_random_bits_image (DONT_CARE);
+ break;
+
+ case 1:
+ result = create_random_solid_image ();
+ break;
+
+ case 2:
+ result = create_random_linear_image ();
+ break;
+
+ case 3:
+ result = create_random_radial_image ();
+ break;
+
+ case 4:
+ result = create_random_conical_image ();
+ break;
+ }
+
+ if (result)
+ set_general_properties (result, TRUE);
+
+ return result;
+}
+
+static void
+random_line (pixman_line_fixed_t *line, int width, int height)
+{
+ line->p1.x = prng_rand_n (width) << 16;
+ line->p1.y = prng_rand_n (height) << 16;
+ line->p2.x = prng_rand_n (width) << 16;
+ line->p2.y = prng_rand_n (height) << 16;
+}
+
+static pixman_trapezoid_t *
+create_random_trapezoids (int *n_traps, int height, int width)
+{
+ pixman_trapezoid_t *trapezoids;
+ int i;
+
+ *n_traps = prng_rand_n (16) + 1;
+
+ trapezoids = malloc (sizeof (pixman_trapezoid_t) * *n_traps);
+
+ for (i = 0; i < *n_traps; ++i)
+ {
+ pixman_trapezoid_t *t = &(trapezoids[i]);
+
+ t->top = prng_rand_n (height) << 16;
+ t->bottom = prng_rand_n (height) << 16;
+
+ random_line (&t->left, height, width);
+ random_line (&t->right, height, width);
+ }
+
+ return trapezoids;
+}
+
+static const pixman_op_t op_list[] =
+{
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_SATURATE,
+ PIXMAN_OP_DISJOINT_CLEAR,
+ PIXMAN_OP_DISJOINT_SRC,
+ PIXMAN_OP_DISJOINT_DST,
+ PIXMAN_OP_DISJOINT_OVER,
+ PIXMAN_OP_DISJOINT_OVER_REVERSE,
+ PIXMAN_OP_DISJOINT_IN,
+ PIXMAN_OP_DISJOINT_IN_REVERSE,
+ PIXMAN_OP_DISJOINT_OUT,
+ PIXMAN_OP_DISJOINT_OUT_REVERSE,
+ PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_OP_CONJOINT_CLEAR,
+ PIXMAN_OP_CONJOINT_SRC,
+ PIXMAN_OP_CONJOINT_DST,
+ PIXMAN_OP_CONJOINT_OVER,
+ PIXMAN_OP_CONJOINT_OVER_REVERSE,
+ PIXMAN_OP_CONJOINT_IN,
+ PIXMAN_OP_CONJOINT_IN_REVERSE,
+ PIXMAN_OP_CONJOINT_OUT,
+ PIXMAN_OP_CONJOINT_OUT_REVERSE,
+ PIXMAN_OP_CONJOINT_ATOP,
+ PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_OP_CONJOINT_XOR,
+ PIXMAN_OP_MULTIPLY,
+ PIXMAN_OP_SCREEN,
+ PIXMAN_OP_OVERLAY,
+ PIXMAN_OP_DARKEN,
+ PIXMAN_OP_LIGHTEN,
+ PIXMAN_OP_COLOR_DODGE,
+ PIXMAN_OP_COLOR_BURN,
+ PIXMAN_OP_HARD_LIGHT,
+ PIXMAN_OP_DIFFERENCE,
+ PIXMAN_OP_EXCLUSION,
+ PIXMAN_OP_SOFT_LIGHT,
+ PIXMAN_OP_HSL_HUE,
+ PIXMAN_OP_HSL_SATURATION,
+ PIXMAN_OP_HSL_COLOR,
+ PIXMAN_OP_HSL_LUMINOSITY,
+};
+
+static void
+run_test (uint32_t seed, pixman_bool_t verbose, uint32_t mod)
+{
+ pixman_image_t *source, *mask, *dest;
+ pixman_op_t op;
+
+ if (verbose)
+ {
+ if (mod == 0 || (seed % mod) == 0)
+ printf ("Seed 0x%08x\n", seed);
+ }
+
+ source = mask = dest = NULL;
+
+ prng_srand (seed);
+
+ if (prng_rand_n (8) == 0)
+ {
+ int n_traps;
+ pixman_trapezoid_t *trapezoids;
+ int p = prng_rand_n (3);
+
+ if (p == 0)
+ dest = create_random_bits_image (DONT_CARE);
+ else
+ dest = create_random_bits_image (REQUIRE_ALPHA);
+
+ if (!dest)
+ goto out;
+
+ set_general_properties (dest, TRUE);
+
+ if (!(trapezoids = create_random_trapezoids (
+ &n_traps, dest->bits.width, dest->bits.height)))
+ {
+ goto out;
+ }
+
+ switch (p)
+ {
+ case 0:
+ source = create_random_image ();
+
+ if (source)
+ {
+ op = op_list [prng_rand_n (ARRAY_LENGTH (op_list))];
+
+ pixman_composite_trapezoids (
+ op, source, dest,
+ random_format (REQUIRE_ALPHA),
+ rand_x (source), rand_y (source),
+ rand_x (dest), rand_y (dest),
+ n_traps, trapezoids);
+ }
+ break;
+
+ case 1:
+ pixman_rasterize_trapezoid (
+ dest, &trapezoids[prng_rand_n (n_traps)],
+ rand_x (dest), rand_y (dest));
+ break;
+
+ case 2:
+ pixman_add_trapezoids (
+ dest, rand_x (dest), rand_y (dest), n_traps, trapezoids);
+ break;
+ }
+
+ free (trapezoids);
+ }
+ else
+ {
+ dest = create_random_bits_image (DONT_CARE);
+ source = create_random_image ();
+ mask = create_random_image ();
+
+ if (source && mask && dest)
+ {
+ set_general_properties (dest, TRUE);
+
+ op = op_list [prng_rand_n (ARRAY_LENGTH (op_list))];
+
+ pixman_image_composite32 (op,
+ source, mask, dest,
+ rand_x (source), rand_y (source),
+ rand_x (mask), rand_y (mask),
+ 0, 0,
+ dest->bits.width,
+ dest->bits.height);
+ }
+ }
+
+out:
+ if (source)
+ pixman_image_unref (source);
+ if (mask)
+ pixman_image_unref (mask);
+ if (dest)
+ pixman_image_unref (dest);
+}
+
+static pixman_bool_t
+get_int (char *s, uint32_t *i)
+{
+ char *end;
+ int p;
+
+ p = strtol (s, &end, 0);
+
+ if (end != s && *end == 0)
+ {
+ *i = p;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+int
+main (int argc, char **argv)
+{
+ int verbose = FALSE;
+ uint32_t seed = 1;
+ uint32_t n_tests = 8000;
+ uint32_t mod = 0;
+ pixman_bool_t use_threads = TRUE;
+ int32_t i;
+
+ pixman_disable_out_of_bounds_workaround ();
+
+ enable_divbyzero_exceptions();
+
+ if (getenv ("VERBOSE") != NULL)
+ verbose = TRUE;
+
+ for (i = 1; i < argc; ++i)
+ {
+ if (strcmp (argv[i], "-v") == 0)
+ {
+ verbose = TRUE;
+
+ if (i + 1 < argc)
+ {
+ get_int (argv[i + 1], &mod);
+ i++;
+ }
+ }
+ else if (strcmp (argv[i], "-s") == 0 && i + 1 < argc)
+ {
+ get_int (argv[i + 1], &seed);
+ use_threads = FALSE;
+ i++;
+ }
+ else if (strcmp (argv[i], "-n") == 0 && i + 1 < argc)
+ {
+ get_int (argv[i + 1], &n_tests);
+ i++;
+ }
+ else
+ {
+ if (strcmp (argv[i], "-h") != 0)
+ printf ("Unknown option '%s'\n\n", argv[i]);
+
+ printf ("Options:\n\n"
+ "-n <number> Number of tests to run\n"
+ "-s <seed> Seed of first test (ignored if PIXMAN_RANDOMIZE_TESTS is set)\n"
+ "-v Print out seeds\n"
+ "-v <n> Print out every n'th seed\n\n");
+
+ exit (-1);
+ }
+ }
+
+ if (getenv ("PIXMAN_RANDOMIZE_TESTS"))
+ {
+ seed = get_random_seed();
+ printf ("First seed: 0x%08x\n", seed);
+ }
+
+ if (use_threads)
+ {
+#ifdef USE_OPENMP
+# pragma omp parallel for default(none) shared(verbose, n_tests, mod, seed)
+#endif
+ for (i = 0; i < (int32_t)n_tests; ++i)
+ run_test (seed + i, verbose, mod);
+ }
+ else
+ {
+ for (i = 0; i < (int32_t)n_tests; ++i)
+ run_test (seed + i, verbose, mod);
+ }
+
+ return 0;
+}
diff --git a/qemu/pixman/test/thread-test.c b/qemu/pixman/test/thread-test.c
new file mode 100644
index 000000000..0b07b269d
--- /dev/null
+++ b/qemu/pixman/test/thread-test.c
@@ -0,0 +1,199 @@
+#include "utils.h"
+
+#ifndef HAVE_PTHREADS
+
+int main ()
+{
+ printf ("Skipped thread-test - pthreads not supported\n");
+ return 0;
+}
+
+#else
+
+#include <stdlib.h>
+#include <pthread.h>
+
+typedef struct
+{
+ int thread_no;
+ uint32_t *dst_buf;
+ prng_t prng_state;
+} info_t;
+
+static const pixman_op_t operators[] =
+{
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_SATURATE,
+ PIXMAN_OP_DISJOINT_CLEAR,
+ PIXMAN_OP_DISJOINT_SRC,
+ PIXMAN_OP_DISJOINT_DST,
+ PIXMAN_OP_DISJOINT_OVER,
+ PIXMAN_OP_DISJOINT_OVER_REVERSE,
+ PIXMAN_OP_DISJOINT_IN,
+ PIXMAN_OP_DISJOINT_IN_REVERSE,
+ PIXMAN_OP_DISJOINT_OUT,
+ PIXMAN_OP_DISJOINT_OUT_REVERSE,
+ PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_OP_CONJOINT_CLEAR,
+ PIXMAN_OP_CONJOINT_SRC,
+ PIXMAN_OP_CONJOINT_DST,
+ PIXMAN_OP_CONJOINT_OVER,
+ PIXMAN_OP_CONJOINT_OVER_REVERSE,
+ PIXMAN_OP_CONJOINT_IN,
+ PIXMAN_OP_CONJOINT_IN_REVERSE,
+ PIXMAN_OP_CONJOINT_OUT,
+ PIXMAN_OP_CONJOINT_OUT_REVERSE,
+ PIXMAN_OP_CONJOINT_ATOP,
+ PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_OP_CONJOINT_XOR,
+ PIXMAN_OP_MULTIPLY,
+ PIXMAN_OP_SCREEN,
+ PIXMAN_OP_OVERLAY,
+ PIXMAN_OP_DARKEN,
+ PIXMAN_OP_LIGHTEN,
+ PIXMAN_OP_COLOR_DODGE,
+ PIXMAN_OP_COLOR_BURN,
+ PIXMAN_OP_HARD_LIGHT,
+ PIXMAN_OP_DIFFERENCE,
+ PIXMAN_OP_EXCLUSION,
+};
+
+static const pixman_format_code_t formats[] =
+{
+ PIXMAN_a8r8g8b8,
+ PIXMAN_r5g6b5,
+ PIXMAN_a8,
+ PIXMAN_a4,
+ PIXMAN_a1,
+ PIXMAN_b5g6r5,
+ PIXMAN_r8g8b8a8,
+ PIXMAN_a4r4g4b4
+};
+
+#define N_ROUNDS 8192
+
+#define RAND_ELT(arr) \
+ arr[prng_rand_r(&info->prng_state) % ARRAY_LENGTH (arr)]
+
+#define DEST_WIDTH (7)
+
+static void *
+thread (void *data)
+{
+ info_t *info = data;
+ uint32_t crc32 = 0x0;
+ uint32_t src_buf[64];
+ pixman_image_t *dst_img, *src_img;
+ int i;
+
+ prng_srand_r (&info->prng_state, info->thread_no);
+
+ for (i = 0; i < N_ROUNDS; ++i)
+ {
+ pixman_op_t op;
+ int rand1, rand2;
+
+ prng_randmemset_r (&info->prng_state, info->dst_buf,
+ DEST_WIDTH * sizeof (uint32_t), 0);
+ prng_randmemset_r (&info->prng_state, src_buf,
+ sizeof (src_buf), 0);
+
+ src_img = pixman_image_create_bits (
+ RAND_ELT (formats), 4, 4, src_buf, 16);
+ dst_img = pixman_image_create_bits (
+ RAND_ELT (formats), DEST_WIDTH, 1, info->dst_buf,
+ DEST_WIDTH * sizeof (uint32_t));
+
+ image_endian_swap (src_img);
+ image_endian_swap (dst_img);
+
+ rand2 = prng_rand_r (&info->prng_state) % 4;
+ rand1 = prng_rand_r (&info->prng_state) % 4;
+ op = RAND_ELT (operators);
+
+ pixman_image_composite32 (
+ op,
+ src_img, NULL, dst_img,
+ rand1, rand2, 0, 0, 0, 0, DEST_WIDTH, 1);
+
+ crc32 = compute_crc32_for_image (crc32, dst_img);
+
+ pixman_image_unref (src_img);
+ pixman_image_unref (dst_img);
+ }
+
+ return (void *)(uintptr_t)crc32;
+}
+
+static inline uint32_t
+byteswap32 (uint32_t x)
+{
+ return ((x & ((uint32_t)0xFF << 24)) >> 24) |
+ ((x & ((uint32_t)0xFF << 16)) >> 8) |
+ ((x & ((uint32_t)0xFF << 8)) << 8) |
+ ((x & ((uint32_t)0xFF << 0)) << 24);
+}
+
+int
+main (void)
+{
+ uint32_t dest[16 * DEST_WIDTH];
+ info_t info[16] = { { 0 } };
+ pthread_t threads[16];
+ void *retvals[16];
+ uint32_t crc32s[16], crc32;
+ int i;
+
+ for (i = 0; i < 16; ++i)
+ {
+ info[i].thread_no = i;
+ info[i].dst_buf = &dest[i * DEST_WIDTH];
+ }
+
+ for (i = 0; i < 16; ++i)
+ pthread_create (&threads[i], NULL, thread, &info[i]);
+
+ for (i = 0; i < 16; ++i)
+ pthread_join (threads[i], &retvals[i]);
+
+ for (i = 0; i < 16; ++i)
+ {
+ crc32s[i] = (uintptr_t)retvals[i];
+
+ if (is_little_endian())
+ crc32s[i] = byteswap32 (crc32s[i]);
+ }
+
+ crc32 = compute_crc32 (0, crc32s, sizeof crc32s);
+
+#define EXPECTED 0xE299B18E
+
+ if (crc32 != EXPECTED)
+ {
+ printf ("thread-test failed. Got checksum 0x%08X, expected 0x%08X\n",
+ crc32, EXPECTED);
+ return 1;
+ }
+
+ return 0;
+}
+
+#endif
+
diff --git a/qemu/pixman/test/trap-crasher.c b/qemu/pixman/test/trap-crasher.c
new file mode 100644
index 000000000..77be1c98b
--- /dev/null
+++ b/qemu/pixman/test/trap-crasher.c
@@ -0,0 +1,39 @@
+#include <stdlib.h>
+#include "utils.h"
+
+int
+main()
+{
+ pixman_image_t *dst;
+ pixman_trapezoid_t traps[] = {
+ {
+ 2147483646,
+ 2147483647,
+ {
+ { 0, 0 },
+ { 0, 2147483647 }
+ },
+ {
+ { 65536, 0 },
+ { 0, 2147483647 }
+ }
+ },
+ {
+ 32768,
+ - 2147483647,
+ {
+ { 0, 0 },
+ { 0, 2147483647 }
+ },
+ {
+ { 65536, 0 },
+ { 0, 2147483647 }
+ }
+ },
+ };
+
+ dst = pixman_image_create_bits (PIXMAN_a8, 1, 1, NULL, -1);
+
+ pixman_add_trapezoids (dst, 0, 0, ARRAY_LENGTH (traps), traps);
+ return (0);
+}
diff --git a/qemu/pixman/test/utils-prng.c b/qemu/pixman/test/utils-prng.c
new file mode 100644
index 000000000..c27b5be83
--- /dev/null
+++ b/qemu/pixman/test/utils-prng.c
@@ -0,0 +1,298 @@
+/*
+ * Copyright © 2012 Siarhei Siamashka <siarhei.siamashka@gmail.com>
+ *
+ * Based on the public domain implementation of small noncryptographic PRNG
+ * authored by Bob Jenkins: http://burtleburtle.net/bob/rand/smallprng.html
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "utils.h"
+#include "utils-prng.h"
+
+#if defined(HAVE_GCC_VECTOR_EXTENSIONS) && defined(__SSE2__)
+#include <xmmintrin.h>
+#endif
+
+void smallprng_srand_r (smallprng_t *x, uint32_t seed)
+{
+ uint32_t i;
+ x->a = 0xf1ea5eed, x->b = x->c = x->d = seed;
+ for (i = 0; i < 20; ++i)
+ smallprng_rand_r (x);
+}
+
+/*
+ * Set a 32-bit seed for PRNG
+ *
+ * LCG is used here for generating independent seeds for different
+ * smallprng instances (in the case if smallprng is also used for
+ * generating these seeds, "Big Crush" test from TestU01 detects
+ * some problems in the glued 'prng_rand_128_r' output data).
+ * Actually we might be even better using some cryptographic
+ * hash for this purpose, but LCG seems to be also enough for
+ * passing "Big Crush".
+ */
+void prng_srand_r (prng_t *x, uint32_t seed)
+{
+#ifdef HAVE_GCC_VECTOR_EXTENSIONS
+ int i;
+ prng_rand_128_data_t dummy;
+ smallprng_srand_r (&x->p0, seed);
+ x->a[0] = x->a[1] = x->a[2] = x->a[3] = 0xf1ea5eed;
+ x->b[0] = x->c[0] = x->d[0] = (seed = seed * 1103515245 + 12345);
+ x->b[1] = x->c[1] = x->d[1] = (seed = seed * 1103515245 + 12345);
+ x->b[2] = x->c[2] = x->d[2] = (seed = seed * 1103515245 + 12345);
+ x->b[3] = x->c[3] = x->d[3] = (seed = seed * 1103515245 + 12345);
+ for (i = 0; i < 20; ++i)
+ prng_rand_128_r (x, &dummy);
+#else
+ smallprng_srand_r (&x->p0, seed);
+ smallprng_srand_r (&x->p1, (seed = seed * 1103515245 + 12345));
+ smallprng_srand_r (&x->p2, (seed = seed * 1103515245 + 12345));
+ smallprng_srand_r (&x->p3, (seed = seed * 1103515245 + 12345));
+ smallprng_srand_r (&x->p4, (seed = seed * 1103515245 + 12345));
+#endif
+}
+
+static force_inline void
+store_rand_128_data (void *addr, prng_rand_128_data_t *d, int aligned)
+{
+#ifdef HAVE_GCC_VECTOR_EXTENSIONS
+ if (aligned)
+ {
+ *(uint8x16 *)addr = d->vb;
+ return;
+ }
+ else
+ {
+#ifdef __SSE2__
+ /* workaround for http://gcc.gnu.org/PR55614 */
+ _mm_storeu_si128 (addr, _mm_loadu_si128 ((__m128i *)d));
+ return;
+#endif
+ }
+#endif
+ /* we could try something better for unaligned writes (packed attribute),
+ * but GCC is not very reliable: http://gcc.gnu.org/PR55454 */
+ memcpy (addr, d, 16);
+}
+
+/*
+ * Helper function and the actual code for "prng_randmemset_r" function
+ */
+static force_inline void
+randmemset_internal (prng_t *prng,
+ uint8_t *buf,
+ size_t size,
+ prng_randmemset_flags_t flags,
+ int aligned)
+{
+ prng_t local_prng = *prng;
+ prng_rand_128_data_t randdata;
+ size_t i;
+
+ while (size >= 16)
+ {
+ prng_rand_128_data_t t;
+ if (flags == 0)
+ {
+ prng_rand_128_r (&local_prng, &randdata);
+ }
+ else
+ {
+ prng_rand_128_r (&local_prng, &t);
+ prng_rand_128_r (&local_prng, &randdata);
+#ifdef HAVE_GCC_VECTOR_EXTENSIONS
+ if (flags & RANDMEMSET_MORE_FF)
+ {
+ const uint8x16 const_C0 =
+ {
+ 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0,
+ 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0, 0xC0
+ };
+ randdata.vb |= (t.vb >= const_C0);
+ }
+ if (flags & RANDMEMSET_MORE_00)
+ {
+ const uint8x16 const_40 =
+ {
+ 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
+ 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40
+ };
+ randdata.vb &= (t.vb >= const_40);
+ }
+ if (flags & RANDMEMSET_MORE_FFFFFFFF)
+ {
+ const uint32x4 const_C0000000 =
+ {
+ 0xC0000000, 0xC0000000, 0xC0000000, 0xC0000000
+ };
+ randdata.vw |= ((t.vw << 30) >= const_C0000000);
+ }
+ if (flags & RANDMEMSET_MORE_00000000)
+ {
+ const uint32x4 const_40000000 =
+ {
+ 0x40000000, 0x40000000, 0x40000000, 0x40000000
+ };
+ randdata.vw &= ((t.vw << 30) >= const_40000000);
+ }
+#else
+ #define PROCESS_ONE_LANE(i) \
+ if (flags & RANDMEMSET_MORE_FF) \
+ { \
+ uint32_t mask_ff = (t.w[i] & (t.w[i] << 1)) & 0x80808080; \
+ mask_ff |= mask_ff >> 1; \
+ mask_ff |= mask_ff >> 2; \
+ mask_ff |= mask_ff >> 4; \
+ randdata.w[i] |= mask_ff; \
+ } \
+ if (flags & RANDMEMSET_MORE_00) \
+ { \
+ uint32_t mask_00 = (t.w[i] | (t.w[i] << 1)) & 0x80808080; \
+ mask_00 |= mask_00 >> 1; \
+ mask_00 |= mask_00 >> 2; \
+ mask_00 |= mask_00 >> 4; \
+ randdata.w[i] &= mask_00; \
+ } \
+ if (flags & RANDMEMSET_MORE_FFFFFFFF) \
+ { \
+ int32_t mask_ff = ((t.w[i] << 30) & (t.w[i] << 31)) & \
+ 0x80000000; \
+ randdata.w[i] |= mask_ff >> 31; \
+ } \
+ if (flags & RANDMEMSET_MORE_00000000) \
+ { \
+ int32_t mask_00 = ((t.w[i] << 30) | (t.w[i] << 31)) & \
+ 0x80000000; \
+ randdata.w[i] &= mask_00 >> 31; \
+ }
+
+ PROCESS_ONE_LANE (0)
+ PROCESS_ONE_LANE (1)
+ PROCESS_ONE_LANE (2)
+ PROCESS_ONE_LANE (3)
+#endif
+ }
+ if (is_little_endian ())
+ {
+ store_rand_128_data (buf, &randdata, aligned);
+ buf += 16;
+ }
+ else
+ {
+#ifdef HAVE_GCC_VECTOR_EXTENSIONS
+ const uint8x16 bswap_shufflemask =
+ {
+ 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+ };
+ randdata.vb = __builtin_shuffle (randdata.vb, bswap_shufflemask);
+ store_rand_128_data (buf, &randdata, aligned);
+ buf += 16;
+#else
+ uint8_t t1, t2, t3, t4;
+ #define STORE_ONE_LANE(i) \
+ t1 = randdata.b[i * 4 + 3]; \
+ t2 = randdata.b[i * 4 + 2]; \
+ t3 = randdata.b[i * 4 + 1]; \
+ t4 = randdata.b[i * 4 + 0]; \
+ *buf++ = t1; \
+ *buf++ = t2; \
+ *buf++ = t3; \
+ *buf++ = t4;
+
+ STORE_ONE_LANE (0)
+ STORE_ONE_LANE (1)
+ STORE_ONE_LANE (2)
+ STORE_ONE_LANE (3)
+#endif
+ }
+ size -= 16;
+ }
+ i = 0;
+ while (i < size)
+ {
+ uint8_t randbyte = prng_rand_r (&local_prng) & 0xFF;
+ if (flags != 0)
+ {
+ uint8_t t = prng_rand_r (&local_prng) & 0xFF;
+ if ((flags & RANDMEMSET_MORE_FF) && (t >= 0xC0))
+ randbyte = 0xFF;
+ if ((flags & RANDMEMSET_MORE_00) && (t < 0x40))
+ randbyte = 0x00;
+ if (i % 4 == 0 && i + 4 <= size)
+ {
+ t = prng_rand_r (&local_prng) & 0xFF;
+ if ((flags & RANDMEMSET_MORE_FFFFFFFF) && (t >= 0xC0))
+ {
+ memset(&buf[i], 0xFF, 4);
+ i += 4;
+ continue;
+ }
+ if ((flags & RANDMEMSET_MORE_00000000) && (t < 0x40))
+ {
+ memset(&buf[i], 0x00, 4);
+ i += 4;
+ continue;
+ }
+ }
+ }
+ buf[i] = randbyte;
+ i++;
+ }
+ *prng = local_prng;
+}
+
+/*
+ * Fill memory buffer with random data. Flags argument may be used
+ * to tweak some statistics properties:
+ * RANDMEMSET_MORE_00 - set ~25% of bytes to 0x00
+ * RANDMEMSET_MORE_FF - set ~25% of bytes to 0xFF
+ * RANDMEMSET_MORE_00000000 - ~25% chance for 00000000 4-byte clusters
+ * RANDMEMSET_MORE_FFFFFFFF - ~25% chance for FFFFFFFF 4-byte clusters
+ */
+void prng_randmemset_r (prng_t *prng,
+ void *voidbuf,
+ size_t size,
+ prng_randmemset_flags_t flags)
+{
+ uint8_t *buf = (uint8_t *)voidbuf;
+ if ((uintptr_t)buf & 15)
+ {
+ /* unaligned buffer */
+ if (flags == 0)
+ randmemset_internal (prng, buf, size, 0, 0);
+ else if (flags == RANDMEMSET_MORE_00_AND_FF)
+ randmemset_internal (prng, buf, size, RANDMEMSET_MORE_00_AND_FF, 0);
+ else
+ randmemset_internal (prng, buf, size, flags, 0);
+ }
+ else
+ {
+ /* aligned buffer */
+ if (flags == 0)
+ randmemset_internal (prng, buf, size, 0, 1);
+ else if (flags == RANDMEMSET_MORE_00_AND_FF)
+ randmemset_internal (prng, buf, size, RANDMEMSET_MORE_00_AND_FF, 1);
+ else
+ randmemset_internal (prng, buf, size, flags, 1);
+ }
+}
diff --git a/qemu/pixman/test/utils-prng.h b/qemu/pixman/test/utils-prng.h
new file mode 100644
index 000000000..f9ae8ddf7
--- /dev/null
+++ b/qemu/pixman/test/utils-prng.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright © 2012 Siarhei Siamashka <siarhei.siamashka@gmail.com>
+ *
+ * Based on the public domain implementation of small noncryptographic PRNG
+ * authored by Bob Jenkins: http://burtleburtle.net/bob/rand/smallprng.html
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __UTILS_PRNG_H__
+#define __UTILS_PRNG_H__
+
+/*
+ * This file provides a fast SIMD-optimized noncryptographic PRNG (pseudorandom
+ * number generator), with the output good enough to pass "Big Crush" tests
+ * from TestU01 (http://en.wikipedia.org/wiki/TestU01).
+ *
+ * SIMD code uses http://gcc.gnu.org/onlinedocs/gcc/Vector-Extensions.html
+ * which is a GCC specific extension. There is also a slower alternative
+ * code path, which should work with any C compiler.
+ *
+ * The "prng_t" structure keeps the internal state of the random number
+ * generator. It is possible to have multiple instances of the random number
+ * generator active at the same time, in this case each of them needs to have
+ * its own "prng_t". All the functions take a pointer to "prng_t"
+ * as the first argument.
+ *
+ * Functions:
+ *
+ * ----------------------------------------------------------------------------
+ * void prng_srand_r (prng_t *prng, uint32_t seed);
+ *
+ * Initialize the pseudorandom number generator. The sequence of preudorandom
+ * numbers is deterministic and only depends on "seed". Any two generators
+ * initialized with the same seed will produce exactly the same sequence.
+ *
+ * ----------------------------------------------------------------------------
+ * uint32_t prng_rand_r (prng_t *prng);
+ *
+ * Generate a single uniformly distributed 32-bit pseudorandom value.
+ *
+ * ----------------------------------------------------------------------------
+ * void prng_randmemset_r (prng_t *prng,
+ * void *buffer,
+ * size_t size,
+ * prng_randmemset_flags_t flags);
+ *
+ * Fills the memory buffer "buffer" with "size" bytes of pseudorandom data.
+ * The "flags" argument may be used to tweak some statistics properties:
+ * RANDMEMSET_MORE_00 - set ~25% of bytes to 0x00
+ * RANDMEMSET_MORE_FF - set ~25% of bytes to 0xFF
+ * The flags can be combined. This allows a bit better simulation of typical
+ * pixel data, which normally contains a lot of fully transparent or fully
+ * opaque pixels.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "pixman-private.h"
+
+/*****************************************************************************/
+
+#ifdef HAVE_GCC_VECTOR_EXTENSIONS
+typedef uint32_t uint32x4 __attribute__ ((vector_size(16)));
+typedef uint8_t uint8x16 __attribute__ ((vector_size(16)));
+#endif
+
+typedef struct
+{
+ uint32_t a, b, c, d;
+} smallprng_t;
+
+typedef struct
+{
+#ifdef HAVE_GCC_VECTOR_EXTENSIONS
+ uint32x4 a, b, c, d;
+#else
+ smallprng_t p1, p2, p3, p4;
+#endif
+ smallprng_t p0;
+} prng_t;
+
+typedef union
+{
+ uint8_t b[16];
+ uint32_t w[4];
+#ifdef HAVE_GCC_VECTOR_EXTENSIONS
+ uint8x16 vb;
+ uint32x4 vw;
+#endif
+} prng_rand_128_data_t;
+
+/*****************************************************************************/
+
+static force_inline uint32_t
+smallprng_rand_r (smallprng_t *x)
+{
+ uint32_t e = x->a - ((x->b << 27) + (x->b >> (32 - 27)));
+ x->a = x->b ^ ((x->c << 17) ^ (x->c >> (32 - 17)));
+ x->b = x->c + x->d;
+ x->c = x->d + e;
+ x->d = e + x->a;
+ return x->d;
+}
+
+/* Generate 4 bytes (32-bits) of random data */
+static force_inline uint32_t
+prng_rand_r (prng_t *x)
+{
+ return smallprng_rand_r (&x->p0);
+}
+
+/* Generate 16 bytes (128-bits) of random data */
+static force_inline void
+prng_rand_128_r (prng_t *x, prng_rand_128_data_t *data)
+{
+#ifdef HAVE_GCC_VECTOR_EXTENSIONS
+ uint32x4 e = x->a - ((x->b << 27) + (x->b >> (32 - 27)));
+ x->a = x->b ^ ((x->c << 17) ^ (x->c >> (32 - 17)));
+ x->b = x->c + x->d;
+ x->c = x->d + e;
+ x->d = e + x->a;
+ data->vw = x->d;
+#else
+ data->w[0] = smallprng_rand_r (&x->p1);
+ data->w[1] = smallprng_rand_r (&x->p2);
+ data->w[2] = smallprng_rand_r (&x->p3);
+ data->w[3] = smallprng_rand_r (&x->p4);
+#endif
+}
+
+typedef enum
+{
+ RANDMEMSET_MORE_00 = 1, /* ~25% chance for 0x00 bytes */
+ RANDMEMSET_MORE_FF = 2, /* ~25% chance for 0xFF bytes */
+ RANDMEMSET_MORE_00000000 = 4, /* ~25% chance for 0x00000000 clusters */
+ RANDMEMSET_MORE_FFFFFFFF = 8, /* ~25% chance for 0xFFFFFFFF clusters */
+ RANDMEMSET_MORE_00_AND_FF = (RANDMEMSET_MORE_00 | RANDMEMSET_MORE_00000000 |
+ RANDMEMSET_MORE_FF | RANDMEMSET_MORE_FFFFFFFF)
+} prng_randmemset_flags_t;
+
+/* Set the 32-bit seed for PRNG */
+void prng_srand_r (prng_t *prng, uint32_t seed);
+
+/* Fill memory buffer with random data */
+void prng_randmemset_r (prng_t *prng,
+ void *buffer,
+ size_t size,
+ prng_randmemset_flags_t flags);
+
+#endif
diff --git a/qemu/pixman/test/utils.c b/qemu/pixman/test/utils.c
new file mode 100644
index 000000000..ebe0ccc09
--- /dev/null
+++ b/qemu/pixman/test/utils.c
@@ -0,0 +1,1618 @@
+#define _GNU_SOURCE
+
+#include "utils.h"
+#include <math.h>
+#include <signal.h>
+#include <stdlib.h>
+
+#ifdef HAVE_GETTIMEOFDAY
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+
+#ifdef HAVE_FENV_H
+#include <fenv.h>
+#endif
+
+#ifdef HAVE_LIBPNG
+#include <png.h>
+#endif
+
+/* Random number generator state
+ */
+
+prng_t prng_state_data;
+prng_t *prng_state;
+
+/*----------------------------------------------------------------------------*\
+ * CRC-32 version 2.0.0 by Craig Bruce, 2006-04-29.
+ *
+ * This program generates the CRC-32 values for the files named in the
+ * command-line arguments. These are the same CRC-32 values used by GZIP,
+ * PKZIP, and ZMODEM. The Crc32_ComputeBuf () can also be detached and
+ * used independently.
+ *
+ * THIS PROGRAM IS PUBLIC-DOMAIN SOFTWARE.
+ *
+ * Based on the byte-oriented implementation "File Verification Using CRC"
+ * by Mark R. Nelson in Dr. Dobb's Journal, May 1992, pp. 64-67.
+ *
+ * v1.0.0: original release.
+ * v1.0.1: fixed printf formats.
+ * v1.0.2: fixed something else.
+ * v1.0.3: replaced CRC constant table by generator function.
+ * v1.0.4: reformatted code, made ANSI C. 1994-12-05.
+ * v2.0.0: rewrote to use memory buffer & static table, 2006-04-29.
+\*----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------*\
+ * NAME:
+ * Crc32_ComputeBuf () - computes the CRC-32 value of a memory buffer
+ * DESCRIPTION:
+ * Computes or accumulates the CRC-32 value for a memory buffer.
+ * The 'inCrc32' gives a previously accumulated CRC-32 value to allow
+ * a CRC to be generated for multiple sequential buffer-fuls of data.
+ * The 'inCrc32' for the first buffer must be zero.
+ * ARGUMENTS:
+ * inCrc32 - accumulated CRC-32 value, must be 0 on first call
+ * buf - buffer to compute CRC-32 value for
+ * bufLen - number of bytes in buffer
+ * RETURNS:
+ * crc32 - computed CRC-32 value
+ * ERRORS:
+ * (no errors are possible)
+\*----------------------------------------------------------------------------*/
+
+uint32_t
+compute_crc32 (uint32_t in_crc32,
+ const void *buf,
+ size_t buf_len)
+{
+ static const uint32_t crc_table[256] = {
+ 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F,
+ 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+ 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2,
+ 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+ 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
+ 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+ 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
+ 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+ 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423,
+ 0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+ 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106,
+ 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+ 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D,
+ 0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+ 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
+ 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+ 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7,
+ 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+ 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA,
+ 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+ 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
+ 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+ 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84,
+ 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+ 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
+ 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+ 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E,
+ 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+ 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55,
+ 0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+ 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28,
+ 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+ 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F,
+ 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+ 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
+ 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+ 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69,
+ 0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+ 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC,
+ 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+ 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693,
+ 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+ 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
+ };
+
+ uint32_t crc32;
+ unsigned char * byte_buf;
+ size_t i;
+
+ /* accumulate crc32 for buffer */
+ crc32 = in_crc32 ^ 0xFFFFFFFF;
+ byte_buf = (unsigned char*) buf;
+
+ for (i = 0; i < buf_len; i++)
+ crc32 = (crc32 >> 8) ^ crc_table[(crc32 ^ byte_buf[i]) & 0xFF];
+
+ return (crc32 ^ 0xFFFFFFFF);
+}
+
+static uint32_t
+compute_crc32_for_image_internal (uint32_t crc32,
+ pixman_image_t *img,
+ pixman_bool_t remove_alpha,
+ pixman_bool_t remove_rgb)
+{
+ pixman_format_code_t fmt = pixman_image_get_format (img);
+ uint32_t *data = pixman_image_get_data (img);
+ int stride = pixman_image_get_stride (img);
+ int height = pixman_image_get_height (img);
+ uint32_t mask = 0xffffffff;
+ int i;
+
+ if (stride < 0)
+ {
+ data += (stride / 4) * (height - 1);
+ stride = - stride;
+ }
+
+ /* mask unused 'x' part */
+ if (PIXMAN_FORMAT_BPP (fmt) - PIXMAN_FORMAT_DEPTH (fmt) &&
+ PIXMAN_FORMAT_DEPTH (fmt) != 0)
+ {
+ uint32_t m = (1 << PIXMAN_FORMAT_DEPTH (fmt)) - 1;
+
+ if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_BGRA ||
+ PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_RGBA)
+ {
+ m <<= (PIXMAN_FORMAT_BPP (fmt) - PIXMAN_FORMAT_DEPTH (fmt));
+ }
+
+ mask &= m;
+ }
+
+ /* mask alpha channel */
+ if (remove_alpha && PIXMAN_FORMAT_A (fmt))
+ {
+ uint32_t m;
+
+ if (PIXMAN_FORMAT_BPP (fmt) == 32)
+ m = 0xffffffff;
+ else
+ m = (1 << PIXMAN_FORMAT_BPP (fmt)) - 1;
+
+ m >>= PIXMAN_FORMAT_A (fmt);
+
+ if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_BGRA ||
+ PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_RGBA ||
+ PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_A)
+ {
+ /* Alpha is at the bottom of the pixel */
+ m <<= PIXMAN_FORMAT_A (fmt);
+ }
+
+ mask &= m;
+ }
+
+ /* mask rgb channels */
+ if (remove_rgb && PIXMAN_FORMAT_RGB (fmt))
+ {
+ uint32_t m = ((uint32_t)~0) >> (32 - PIXMAN_FORMAT_BPP (fmt));
+ uint32_t size = PIXMAN_FORMAT_R (fmt) + PIXMAN_FORMAT_G (fmt) + PIXMAN_FORMAT_B (fmt);
+
+ m &= ~((1 << size) - 1);
+
+ if (PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_BGRA ||
+ PIXMAN_FORMAT_TYPE (fmt) == PIXMAN_TYPE_RGBA)
+ {
+ /* RGB channels are at the top of the pixel */
+ m >>= size;
+ }
+
+ mask &= m;
+ }
+
+ for (i = 0; i * PIXMAN_FORMAT_BPP (fmt) < 32; i++)
+ mask |= mask << (i * PIXMAN_FORMAT_BPP (fmt));
+
+ for (i = 0; i < stride * height / 4; i++)
+ data[i] &= mask;
+
+ /* swap endiannes in order to provide identical results on both big
+ * and litte endian systems
+ */
+ image_endian_swap (img);
+
+ return compute_crc32 (crc32, data, stride * height);
+}
+
+uint32_t
+compute_crc32_for_image (uint32_t crc32,
+ pixman_image_t *img)
+{
+ if (img->common.alpha_map)
+ {
+ crc32 = compute_crc32_for_image_internal (crc32, img, TRUE, FALSE);
+ crc32 = compute_crc32_for_image_internal (
+ crc32, (pixman_image_t *)img->common.alpha_map, FALSE, TRUE);
+ }
+ else
+ {
+ crc32 = compute_crc32_for_image_internal (crc32, img, FALSE, FALSE);
+ }
+
+ return crc32;
+}
+
+void
+print_image (pixman_image_t *image)
+{
+ int i, j;
+ int width, height, stride;
+ pixman_format_code_t format;
+ uint8_t *buffer;
+ int s;
+
+ width = pixman_image_get_width (image);
+ height = pixman_image_get_height (image);
+ stride = pixman_image_get_stride (image);
+ format = pixman_image_get_format (image);
+ buffer = (uint8_t *)pixman_image_get_data (image);
+
+ s = (stride >= 0)? stride : - stride;
+
+ printf ("---\n");
+ for (i = 0; i < height; i++)
+ {
+ for (j = 0; j < s; j++)
+ {
+ if (j == (width * PIXMAN_FORMAT_BPP (format) + 7) / 8)
+ printf ("| ");
+
+ printf ("%02X ", *((uint8_t *)buffer + i * stride + j));
+ }
+ printf ("\n");
+ }
+ printf ("---\n");
+}
+
+/* perform endian conversion of pixel data
+ */
+void
+image_endian_swap (pixman_image_t *img)
+{
+ int stride = pixman_image_get_stride (img);
+ uint32_t *data = pixman_image_get_data (img);
+ int height = pixman_image_get_height (img);
+ int bpp = PIXMAN_FORMAT_BPP (pixman_image_get_format (img));
+ int i, j;
+
+ /* swap bytes only on big endian systems */
+ if (is_little_endian())
+ return;
+
+ if (bpp == 8)
+ return;
+
+ for (i = 0; i < height; i++)
+ {
+ uint8_t *line_data = (uint8_t *)data + stride * i;
+ int s = (stride >= 0)? stride : - stride;
+
+ switch (bpp)
+ {
+ case 1:
+ for (j = 0; j < s; j++)
+ {
+ line_data[j] =
+ ((line_data[j] & 0x80) >> 7) |
+ ((line_data[j] & 0x40) >> 5) |
+ ((line_data[j] & 0x20) >> 3) |
+ ((line_data[j] & 0x10) >> 1) |
+ ((line_data[j] & 0x08) << 1) |
+ ((line_data[j] & 0x04) << 3) |
+ ((line_data[j] & 0x02) << 5) |
+ ((line_data[j] & 0x01) << 7);
+ }
+ break;
+ case 4:
+ for (j = 0; j < s; j++)
+ {
+ line_data[j] = (line_data[j] >> 4) | (line_data[j] << 4);
+ }
+ break;
+ case 16:
+ for (j = 0; j + 2 <= s; j += 2)
+ {
+ char t1 = line_data[j + 0];
+ char t2 = line_data[j + 1];
+
+ line_data[j + 1] = t1;
+ line_data[j + 0] = t2;
+ }
+ break;
+ case 24:
+ for (j = 0; j + 3 <= s; j += 3)
+ {
+ char t1 = line_data[j + 0];
+ char t2 = line_data[j + 1];
+ char t3 = line_data[j + 2];
+
+ line_data[j + 2] = t1;
+ line_data[j + 1] = t2;
+ line_data[j + 0] = t3;
+ }
+ break;
+ case 32:
+ for (j = 0; j + 4 <= s; j += 4)
+ {
+ char t1 = line_data[j + 0];
+ char t2 = line_data[j + 1];
+ char t3 = line_data[j + 2];
+ char t4 = line_data[j + 3];
+
+ line_data[j + 3] = t1;
+ line_data[j + 2] = t2;
+ line_data[j + 1] = t3;
+ line_data[j + 0] = t4;
+ }
+ break;
+ default:
+ assert (FALSE);
+ break;
+ }
+ }
+}
+
+#define N_LEADING_PROTECTED 10
+#define N_TRAILING_PROTECTED 10
+
+typedef struct
+{
+ void *addr;
+ uint32_t len;
+ uint8_t *trailing;
+ int n_bytes;
+} info_t;
+
+#if defined(HAVE_MPROTECT) && defined(HAVE_GETPAGESIZE) && defined(HAVE_SYS_MMAN_H) && defined(HAVE_MMAP)
+
+/* This is apparently necessary on at least OS X */
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+void *
+fence_malloc (int64_t len)
+{
+ unsigned long page_size = getpagesize();
+ unsigned long page_mask = page_size - 1;
+ uint32_t n_payload_bytes = (len + page_mask) & ~page_mask;
+ uint32_t n_bytes =
+ (page_size * (N_LEADING_PROTECTED + N_TRAILING_PROTECTED + 2) +
+ n_payload_bytes) & ~page_mask;
+ uint8_t *initial_page;
+ uint8_t *leading_protected;
+ uint8_t *trailing_protected;
+ uint8_t *payload;
+ uint8_t *addr;
+
+ if (len < 0)
+ abort();
+
+ addr = mmap (NULL, n_bytes, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS,
+ -1, 0);
+
+ if (addr == MAP_FAILED)
+ {
+ printf ("mmap failed on %lld %u\n", (long long int)len, n_bytes);
+ return NULL;
+ }
+
+ initial_page = (uint8_t *)(((uintptr_t)addr + page_mask) & ~page_mask);
+ leading_protected = initial_page + page_size;
+ payload = leading_protected + N_LEADING_PROTECTED * page_size;
+ trailing_protected = payload + n_payload_bytes;
+
+ ((info_t *)initial_page)->addr = addr;
+ ((info_t *)initial_page)->len = len;
+ ((info_t *)initial_page)->trailing = trailing_protected;
+ ((info_t *)initial_page)->n_bytes = n_bytes;
+
+ if ((mprotect (leading_protected, N_LEADING_PROTECTED * page_size,
+ PROT_NONE) == -1) ||
+ (mprotect (trailing_protected, N_TRAILING_PROTECTED * page_size,
+ PROT_NONE) == -1))
+ {
+ munmap (addr, n_bytes);
+ return NULL;
+ }
+
+ return payload;
+}
+
+void
+fence_free (void *data)
+{
+ uint32_t page_size = getpagesize();
+ uint8_t *payload = data;
+ uint8_t *leading_protected = payload - N_LEADING_PROTECTED * page_size;
+ uint8_t *initial_page = leading_protected - page_size;
+ info_t *info = (info_t *)initial_page;
+
+ munmap (info->addr, info->n_bytes);
+}
+
+#else
+
+void *
+fence_malloc (int64_t len)
+{
+ return malloc (len);
+}
+
+void
+fence_free (void *data)
+{
+ free (data);
+}
+
+#endif
+
+uint8_t *
+make_random_bytes (int n_bytes)
+{
+ uint8_t *bytes = fence_malloc (n_bytes);
+
+ if (!bytes)
+ return NULL;
+
+ prng_randmemset (bytes, n_bytes, 0);
+
+ return bytes;
+}
+
+void
+a8r8g8b8_to_rgba_np (uint32_t *dst, uint32_t *src, int n_pixels)
+{
+ uint8_t *dst8 = (uint8_t *)dst;
+ int i;
+
+ for (i = 0; i < n_pixels; ++i)
+ {
+ uint32_t p = src[i];
+ uint8_t a, r, g, b;
+
+ a = (p & 0xff000000) >> 24;
+ r = (p & 0x00ff0000) >> 16;
+ g = (p & 0x0000ff00) >> 8;
+ b = (p & 0x000000ff) >> 0;
+
+ if (a != 0)
+ {
+#define DIVIDE(c, a) \
+ do \
+ { \
+ int t = ((c) * 255) / a; \
+ (c) = t < 0? 0 : t > 255? 255 : t; \
+ } while (0)
+
+ DIVIDE (r, a);
+ DIVIDE (g, a);
+ DIVIDE (b, a);
+ }
+
+ *dst8++ = r;
+ *dst8++ = g;
+ *dst8++ = b;
+ *dst8++ = a;
+ }
+}
+
+#ifdef HAVE_LIBPNG
+
+pixman_bool_t
+write_png (pixman_image_t *image, const char *filename)
+{
+ int width = pixman_image_get_width (image);
+ int height = pixman_image_get_height (image);
+ int stride = width * 4;
+ uint32_t *data = malloc (height * stride);
+ pixman_image_t *copy;
+ png_struct *write_struct;
+ png_info *info_struct;
+ pixman_bool_t result = FALSE;
+ FILE *f = fopen (filename, "wb");
+ png_bytep *row_pointers;
+ int i;
+
+ if (!f)
+ return FALSE;
+
+ row_pointers = malloc (height * sizeof (png_bytep));
+
+ copy = pixman_image_create_bits (
+ PIXMAN_a8r8g8b8, width, height, data, stride);
+
+ pixman_image_composite32 (
+ PIXMAN_OP_SRC, image, NULL, copy, 0, 0, 0, 0, 0, 0, width, height);
+
+ a8r8g8b8_to_rgba_np (data, data, height * width);
+
+ for (i = 0; i < height; ++i)
+ row_pointers[i] = (png_bytep)(data + i * width);
+
+ if (!(write_struct = png_create_write_struct (
+ PNG_LIBPNG_VER_STRING, NULL, NULL, NULL)))
+ goto out1;
+
+ if (!(info_struct = png_create_info_struct (write_struct)))
+ goto out2;
+
+ png_init_io (write_struct, f);
+
+ png_set_IHDR (write_struct, info_struct, width, height,
+ 8, PNG_COLOR_TYPE_RGB_ALPHA,
+ PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE,
+ PNG_FILTER_TYPE_BASE);
+
+ png_write_info (write_struct, info_struct);
+
+ png_write_image (write_struct, row_pointers);
+
+ png_write_end (write_struct, NULL);
+
+ result = TRUE;
+
+out2:
+ png_destroy_write_struct (&write_struct, &info_struct);
+
+out1:
+ if (fclose (f) != 0)
+ result = FALSE;
+
+ pixman_image_unref (copy);
+ free (row_pointers);
+ free (data);
+ return result;
+}
+
+#else /* no libpng */
+
+pixman_bool_t
+write_png (pixman_image_t *image, const char *filename)
+{
+ return FALSE;
+}
+
+#endif
+
+static void
+color8_to_color16 (uint32_t color8, pixman_color_t *color16)
+{
+ color16->alpha = ((color8 & 0xff000000) >> 24);
+ color16->red = ((color8 & 0x00ff0000) >> 16);
+ color16->green = ((color8 & 0x0000ff00) >> 8);
+ color16->blue = ((color8 & 0x000000ff) >> 0);
+
+ color16->alpha |= color16->alpha << 8;
+ color16->red |= color16->red << 8;
+ color16->blue |= color16->blue << 8;
+ color16->green |= color16->green << 8;
+}
+
+void
+draw_checkerboard (pixman_image_t *image,
+ int check_size,
+ uint32_t color1, uint32_t color2)
+{
+ pixman_color_t check1, check2;
+ pixman_image_t *c1, *c2;
+ int n_checks_x, n_checks_y;
+ int i, j;
+
+ color8_to_color16 (color1, &check1);
+ color8_to_color16 (color2, &check2);
+
+ c1 = pixman_image_create_solid_fill (&check1);
+ c2 = pixman_image_create_solid_fill (&check2);
+
+ n_checks_x = (
+ pixman_image_get_width (image) + check_size - 1) / check_size;
+ n_checks_y = (
+ pixman_image_get_height (image) + check_size - 1) / check_size;
+
+ for (j = 0; j < n_checks_y; j++)
+ {
+ for (i = 0; i < n_checks_x; i++)
+ {
+ pixman_image_t *src;
+
+ if (((i ^ j) & 1))
+ src = c1;
+ else
+ src = c2;
+
+ pixman_image_composite32 (PIXMAN_OP_SRC, src, NULL, image,
+ 0, 0, 0, 0,
+ i * check_size, j * check_size,
+ check_size, check_size);
+ }
+ }
+}
+
+static uint32_t
+call_test_function (uint32_t (*test_function)(int testnum, int verbose),
+ int testnum,
+ int verbose)
+{
+ uint32_t retval;
+
+#if defined (__GNUC__) && defined (_WIN32) && (defined (__i386) || defined (__i386__))
+ __asm__ (
+ /* Deliberately avoid aligning the stack to 16 bytes */
+ "pushl %1\n\t"
+ "pushl %2\n\t"
+ "call *%3\n\t"
+ "addl $8, %%esp\n\t"
+ : "=a" (retval)
+ : "r" (verbose),
+ "r" (testnum),
+ "r" (test_function)
+ : "edx", "ecx"); /* caller save registers */
+#else
+ retval = test_function (testnum, verbose);
+#endif
+
+ return retval;
+}
+
+/*
+ * A function, which can be used as a core part of the test programs,
+ * intended to detect various problems with the help of fuzzing input
+ * to pixman API (according to some templates, aka "smart" fuzzing).
+ * Some general information about such testing can be found here:
+ * http://en.wikipedia.org/wiki/Fuzz_testing
+ *
+ * It may help detecting:
+ * - crashes on bad handling of valid or reasonably invalid input to
+ * pixman API.
+ * - deviations from the behavior of older pixman releases.
+ * - deviations from the behavior of the same pixman release, but
+ * configured in a different way (for example with SIMD optimizations
+ * disabled), or running on a different OS or hardware.
+ *
+ * The test is performed by calling a callback function a huge number
+ * of times. The callback function is expected to run some snippet of
+ * pixman code with pseudorandom variations to the data feeded to
+ * pixman API. A result of running each callback function should be
+ * some deterministic value which depends on test number (test number
+ * can be used as a seed for PRNG). When 'verbose' argument is nonzero,
+ * callback function is expected to print to stdout some information
+ * about what it does.
+ *
+ * Return values from many small tests are accumulated together and
+ * used as final checksum, which can be compared to some expected
+ * value. Running the tests not individually, but in a batch helps
+ * to reduce process start overhead and also allows to parallelize
+ * testing and utilize multiple CPU cores.
+ *
+ * The resulting executable can be run without any arguments. In
+ * this case it runs a batch of tests starting from 1 and up to
+ * 'default_number_of_iterations'. The resulting checksum is
+ * compared with 'expected_checksum' and FAIL or PASS verdict
+ * depends on the result of this comparison.
+ *
+ * If the executable is run with 2 numbers provided as command line
+ * arguments, they specify the starting and ending numbers for a test
+ * batch.
+ *
+ * If the executable is run with only one number provided as a command
+ * line argument, then this number is used to call the callback function
+ * once, and also with verbose flag set.
+ */
+int
+fuzzer_test_main (const char *test_name,
+ int default_number_of_iterations,
+ uint32_t expected_checksum,
+ uint32_t (*test_function)(int testnum, int verbose),
+ int argc,
+ const char *argv[])
+{
+ int i, n1 = 1, n2 = 0;
+ uint32_t checksum = 0;
+ int verbose = getenv ("VERBOSE") != NULL;
+
+ if (argc >= 3)
+ {
+ n1 = atoi (argv[1]);
+ n2 = atoi (argv[2]);
+ if (n2 < n1)
+ {
+ printf ("invalid test range\n");
+ return 1;
+ }
+ }
+ else if (argc >= 2)
+ {
+ n2 = atoi (argv[1]);
+
+ checksum = call_test_function (test_function, n2, 1);
+
+ printf ("%d: checksum=%08X\n", n2, checksum);
+ return 0;
+ }
+ else
+ {
+ n1 = 1;
+ n2 = default_number_of_iterations;
+ }
+
+#ifdef USE_OPENMP
+ #pragma omp parallel for reduction(+:checksum) default(none) \
+ shared(n1, n2, test_function, verbose)
+#endif
+ for (i = n1; i <= n2; i++)
+ {
+ uint32_t crc = call_test_function (test_function, i, 0);
+ if (verbose)
+ printf ("%d: %08X\n", i, crc);
+ checksum += crc;
+ }
+
+ if (n1 == 1 && n2 == default_number_of_iterations)
+ {
+ if (checksum == expected_checksum)
+ {
+ printf ("%s test passed (checksum=%08X)\n",
+ test_name, checksum);
+ }
+ else
+ {
+ printf ("%s test failed! (checksum=%08X, expected %08X)\n",
+ test_name, checksum, expected_checksum);
+ return 1;
+ }
+ }
+ else
+ {
+ printf ("%d-%d: checksum=%08X\n", n1, n2, checksum);
+ }
+
+ return 0;
+}
+
+/* Try to obtain current time in seconds */
+double
+gettime (void)
+{
+#ifdef HAVE_GETTIMEOFDAY
+ struct timeval tv;
+
+ gettimeofday (&tv, NULL);
+ return (double)((int64_t)tv.tv_sec * 1000000 + tv.tv_usec) / 1000000.;
+#else
+ return (double)clock() / (double)CLOCKS_PER_SEC;
+#endif
+}
+
+uint32_t
+get_random_seed (void)
+{
+ union { double d; uint32_t u32; } t;
+ t.d = gettime();
+ prng_srand (t.u32);
+
+ return prng_rand ();
+}
+
+#ifdef HAVE_SIGACTION
+#ifdef HAVE_ALARM
+static const char *global_msg;
+
+static void
+on_alarm (int signo)
+{
+ printf ("%s\n", global_msg);
+ exit (1);
+}
+#endif
+#endif
+
+void
+fail_after (int seconds, const char *msg)
+{
+#ifdef HAVE_SIGACTION
+#ifdef HAVE_ALARM
+ struct sigaction action;
+
+ global_msg = msg;
+
+ memset (&action, 0, sizeof (action));
+ action.sa_handler = on_alarm;
+
+ alarm (seconds);
+
+ sigaction (SIGALRM, &action, NULL);
+#endif
+#endif
+}
+
+void
+enable_divbyzero_exceptions (void)
+{
+#ifdef HAVE_FENV_H
+#ifdef HAVE_FEENABLEEXCEPT
+ feenableexcept (FE_DIVBYZERO);
+#endif
+#endif
+}
+
+void *
+aligned_malloc (size_t align, size_t size)
+{
+ void *result;
+
+#ifdef HAVE_POSIX_MEMALIGN
+ if (posix_memalign (&result, align, size) != 0)
+ result = NULL;
+#else
+ result = malloc (size);
+#endif
+
+ return result;
+}
+
+#define CONVERT_15(c, is_rgb) \
+ (is_rgb? \
+ ((((c) >> 3) & 0x001f) | \
+ (((c) >> 6) & 0x03e0) | \
+ (((c) >> 9) & 0x7c00)) : \
+ (((((c) >> 16) & 0xff) * 153 + \
+ (((c) >> 8) & 0xff) * 301 + \
+ (((c) ) & 0xff) * 58) >> 2))
+
+double
+convert_srgb_to_linear (double c)
+{
+ if (c <= 0.04045)
+ return c / 12.92;
+ else
+ return pow ((c + 0.055) / 1.055, 2.4);
+}
+
+double
+convert_linear_to_srgb (double c)
+{
+ if (c <= 0.0031308)
+ return c * 12.92;
+ else
+ return 1.055 * pow (c, 1.0/2.4) - 0.055;
+}
+
+void
+initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb)
+{
+ int i;
+ uint32_t mask = (1 << depth) - 1;
+
+ for (i = 0; i < 32768; ++i)
+ palette->ent[i] = prng_rand() & mask;
+
+ memset (palette->rgba, 0, sizeof (palette->rgba));
+
+ for (i = 0; i < mask + 1; ++i)
+ {
+ uint32_t rgba24;
+ pixman_bool_t retry;
+ uint32_t i15;
+
+ /* We filled the rgb->index map with random numbers, but we
+ * do need the ability to round trip, that is if some indexed
+ * color expands to an argb24, then the 15 bit version of that
+ * color must map back to the index. Anything else, we don't
+ * care about too much.
+ */
+ do
+ {
+ uint32_t old_idx;
+
+ rgba24 = prng_rand();
+ i15 = CONVERT_15 (rgba24, is_rgb);
+
+ old_idx = palette->ent[i15];
+ if (CONVERT_15 (palette->rgba[old_idx], is_rgb) == i15)
+ retry = 1;
+ else
+ retry = 0;
+ } while (retry);
+
+ palette->rgba[i] = rgba24;
+ palette->ent[i15] = i;
+ }
+
+ for (i = 0; i < mask + 1; ++i)
+ {
+ assert (palette->ent[CONVERT_15 (palette->rgba[i], is_rgb)] == i);
+ }
+}
+
+const char *
+operator_name (pixman_op_t op)
+{
+ switch (op)
+ {
+ case PIXMAN_OP_CLEAR: return "PIXMAN_OP_CLEAR";
+ case PIXMAN_OP_SRC: return "PIXMAN_OP_SRC";
+ case PIXMAN_OP_DST: return "PIXMAN_OP_DST";
+ case PIXMAN_OP_OVER: return "PIXMAN_OP_OVER";
+ case PIXMAN_OP_OVER_REVERSE: return "PIXMAN_OP_OVER_REVERSE";
+ case PIXMAN_OP_IN: return "PIXMAN_OP_IN";
+ case PIXMAN_OP_IN_REVERSE: return "PIXMAN_OP_IN_REVERSE";
+ case PIXMAN_OP_OUT: return "PIXMAN_OP_OUT";
+ case PIXMAN_OP_OUT_REVERSE: return "PIXMAN_OP_OUT_REVERSE";
+ case PIXMAN_OP_ATOP: return "PIXMAN_OP_ATOP";
+ case PIXMAN_OP_ATOP_REVERSE: return "PIXMAN_OP_ATOP_REVERSE";
+ case PIXMAN_OP_XOR: return "PIXMAN_OP_XOR";
+ case PIXMAN_OP_ADD: return "PIXMAN_OP_ADD";
+ case PIXMAN_OP_SATURATE: return "PIXMAN_OP_SATURATE";
+
+ case PIXMAN_OP_DISJOINT_CLEAR: return "PIXMAN_OP_DISJOINT_CLEAR";
+ case PIXMAN_OP_DISJOINT_SRC: return "PIXMAN_OP_DISJOINT_SRC";
+ case PIXMAN_OP_DISJOINT_DST: return "PIXMAN_OP_DISJOINT_DST";
+ case PIXMAN_OP_DISJOINT_OVER: return "PIXMAN_OP_DISJOINT_OVER";
+ case PIXMAN_OP_DISJOINT_OVER_REVERSE: return "PIXMAN_OP_DISJOINT_OVER_REVERSE";
+ case PIXMAN_OP_DISJOINT_IN: return "PIXMAN_OP_DISJOINT_IN";
+ case PIXMAN_OP_DISJOINT_IN_REVERSE: return "PIXMAN_OP_DISJOINT_IN_REVERSE";
+ case PIXMAN_OP_DISJOINT_OUT: return "PIXMAN_OP_DISJOINT_OUT";
+ case PIXMAN_OP_DISJOINT_OUT_REVERSE: return "PIXMAN_OP_DISJOINT_OUT_REVERSE";
+ case PIXMAN_OP_DISJOINT_ATOP: return "PIXMAN_OP_DISJOINT_ATOP";
+ case PIXMAN_OP_DISJOINT_ATOP_REVERSE: return "PIXMAN_OP_DISJOINT_ATOP_REVERSE";
+ case PIXMAN_OP_DISJOINT_XOR: return "PIXMAN_OP_DISJOINT_XOR";
+
+ case PIXMAN_OP_CONJOINT_CLEAR: return "PIXMAN_OP_CONJOINT_CLEAR";
+ case PIXMAN_OP_CONJOINT_SRC: return "PIXMAN_OP_CONJOINT_SRC";
+ case PIXMAN_OP_CONJOINT_DST: return "PIXMAN_OP_CONJOINT_DST";
+ case PIXMAN_OP_CONJOINT_OVER: return "PIXMAN_OP_CONJOINT_OVER";
+ case PIXMAN_OP_CONJOINT_OVER_REVERSE: return "PIXMAN_OP_CONJOINT_OVER_REVERSE";
+ case PIXMAN_OP_CONJOINT_IN: return "PIXMAN_OP_CONJOINT_IN";
+ case PIXMAN_OP_CONJOINT_IN_REVERSE: return "PIXMAN_OP_CONJOINT_IN_REVERSE";
+ case PIXMAN_OP_CONJOINT_OUT: return "PIXMAN_OP_CONJOINT_OUT";
+ case PIXMAN_OP_CONJOINT_OUT_REVERSE: return "PIXMAN_OP_CONJOINT_OUT_REVERSE";
+ case PIXMAN_OP_CONJOINT_ATOP: return "PIXMAN_OP_CONJOINT_ATOP";
+ case PIXMAN_OP_CONJOINT_ATOP_REVERSE: return "PIXMAN_OP_CONJOINT_ATOP_REVERSE";
+ case PIXMAN_OP_CONJOINT_XOR: return "PIXMAN_OP_CONJOINT_XOR";
+
+ case PIXMAN_OP_MULTIPLY: return "PIXMAN_OP_MULTIPLY";
+ case PIXMAN_OP_SCREEN: return "PIXMAN_OP_SCREEN";
+ case PIXMAN_OP_OVERLAY: return "PIXMAN_OP_OVERLAY";
+ case PIXMAN_OP_DARKEN: return "PIXMAN_OP_DARKEN";
+ case PIXMAN_OP_LIGHTEN: return "PIXMAN_OP_LIGHTEN";
+ case PIXMAN_OP_COLOR_DODGE: return "PIXMAN_OP_COLOR_DODGE";
+ case PIXMAN_OP_COLOR_BURN: return "PIXMAN_OP_COLOR_BURN";
+ case PIXMAN_OP_HARD_LIGHT: return "PIXMAN_OP_HARD_LIGHT";
+ case PIXMAN_OP_SOFT_LIGHT: return "PIXMAN_OP_SOFT_LIGHT";
+ case PIXMAN_OP_DIFFERENCE: return "PIXMAN_OP_DIFFERENCE";
+ case PIXMAN_OP_EXCLUSION: return "PIXMAN_OP_EXCLUSION";
+ case PIXMAN_OP_HSL_HUE: return "PIXMAN_OP_HSL_HUE";
+ case PIXMAN_OP_HSL_SATURATION: return "PIXMAN_OP_HSL_SATURATION";
+ case PIXMAN_OP_HSL_COLOR: return "PIXMAN_OP_HSL_COLOR";
+ case PIXMAN_OP_HSL_LUMINOSITY: return "PIXMAN_OP_HSL_LUMINOSITY";
+
+ case PIXMAN_OP_NONE:
+ return "<invalid operator 'none'>";
+ };
+
+ return "<unknown operator>";
+}
+
+const char *
+format_name (pixman_format_code_t format)
+{
+ switch (format)
+ {
+/* 32bpp formats */
+ case PIXMAN_a8r8g8b8: return "a8r8g8b8";
+ case PIXMAN_x8r8g8b8: return "x8r8g8b8";
+ case PIXMAN_a8b8g8r8: return "a8b8g8r8";
+ case PIXMAN_x8b8g8r8: return "x8b8g8r8";
+ case PIXMAN_b8g8r8a8: return "b8g8r8a8";
+ case PIXMAN_b8g8r8x8: return "b8g8r8x8";
+ case PIXMAN_r8g8b8a8: return "r8g8b8a8";
+ case PIXMAN_r8g8b8x8: return "r8g8b8x8";
+ case PIXMAN_x14r6g6b6: return "x14r6g6b6";
+ case PIXMAN_x2r10g10b10: return "x2r10g10b10";
+ case PIXMAN_a2r10g10b10: return "a2r10g10b10";
+ case PIXMAN_x2b10g10r10: return "x2b10g10r10";
+ case PIXMAN_a2b10g10r10: return "a2b10g10r10";
+
+/* sRGB formats */
+ case PIXMAN_a8r8g8b8_sRGB: return "a8r8g8b8_sRGB";
+
+/* 24bpp formats */
+ case PIXMAN_r8g8b8: return "r8g8b8";
+ case PIXMAN_b8g8r8: return "b8g8r8";
+
+/* 16bpp formats */
+ case PIXMAN_r5g6b5: return "r5g6b5";
+ case PIXMAN_b5g6r5: return "b5g6r5";
+
+ case PIXMAN_a1r5g5b5: return "a1r5g5b5";
+ case PIXMAN_x1r5g5b5: return "x1r5g5b5";
+ case PIXMAN_a1b5g5r5: return "a1b5g5r5";
+ case PIXMAN_x1b5g5r5: return "x1b5g5r5";
+ case PIXMAN_a4r4g4b4: return "a4r4g4b4";
+ case PIXMAN_x4r4g4b4: return "x4r4g4b4";
+ case PIXMAN_a4b4g4r4: return "a4b4g4r4";
+ case PIXMAN_x4b4g4r4: return "x4b4g4r4";
+
+/* 8bpp formats */
+ case PIXMAN_a8: return "a8";
+ case PIXMAN_r3g3b2: return "r3g3b2";
+ case PIXMAN_b2g3r3: return "b2g3r3";
+ case PIXMAN_a2r2g2b2: return "a2r2g2b2";
+ case PIXMAN_a2b2g2r2: return "a2b2g2r2";
+
+#if 0
+ case PIXMAN_x4c4: return "x4c4";
+ case PIXMAN_g8: return "g8";
+#endif
+ case PIXMAN_c8: return "x4c4 / c8";
+ case PIXMAN_x4g4: return "x4g4 / g8";
+
+ case PIXMAN_x4a4: return "x4a4";
+
+/* 4bpp formats */
+ case PIXMAN_a4: return "a4";
+ case PIXMAN_r1g2b1: return "r1g2b1";
+ case PIXMAN_b1g2r1: return "b1g2r1";
+ case PIXMAN_a1r1g1b1: return "a1r1g1b1";
+ case PIXMAN_a1b1g1r1: return "a1b1g1r1";
+
+ case PIXMAN_c4: return "c4";
+ case PIXMAN_g4: return "g4";
+
+/* 1bpp formats */
+ case PIXMAN_a1: return "a1";
+
+ case PIXMAN_g1: return "g1";
+
+/* YUV formats */
+ case PIXMAN_yuy2: return "yuy2";
+ case PIXMAN_yv12: return "yv12";
+ };
+
+ /* Fake formats.
+ *
+ * This is separate switch to prevent GCC from complaining
+ * that the values are not in the pixman_format_code_t enum.
+ */
+ switch ((uint32_t)format)
+ {
+ case PIXMAN_null: return "null";
+ case PIXMAN_solid: return "solid";
+ case PIXMAN_pixbuf: return "pixbuf";
+ case PIXMAN_rpixbuf: return "rpixbuf";
+ case PIXMAN_unknown: return "unknown";
+ };
+
+ return "<unknown format>";
+};
+
+static double
+calc_op (pixman_op_t op, double src, double dst, double srca, double dsta)
+{
+#define mult_chan(src, dst, Fa, Fb) MIN ((src) * (Fa) + (dst) * (Fb), 1.0)
+
+ double Fa, Fb;
+
+ switch (op)
+ {
+ case PIXMAN_OP_CLEAR:
+ case PIXMAN_OP_DISJOINT_CLEAR:
+ case PIXMAN_OP_CONJOINT_CLEAR:
+ return mult_chan (src, dst, 0.0, 0.0);
+
+ case PIXMAN_OP_SRC:
+ case PIXMAN_OP_DISJOINT_SRC:
+ case PIXMAN_OP_CONJOINT_SRC:
+ return mult_chan (src, dst, 1.0, 0.0);
+
+ case PIXMAN_OP_DST:
+ case PIXMAN_OP_DISJOINT_DST:
+ case PIXMAN_OP_CONJOINT_DST:
+ return mult_chan (src, dst, 0.0, 1.0);
+
+ case PIXMAN_OP_OVER:
+ return mult_chan (src, dst, 1.0, 1.0 - srca);
+
+ case PIXMAN_OP_OVER_REVERSE:
+ return mult_chan (src, dst, 1.0 - dsta, 1.0);
+
+ case PIXMAN_OP_IN:
+ return mult_chan (src, dst, dsta, 0.0);
+
+ case PIXMAN_OP_IN_REVERSE:
+ return mult_chan (src, dst, 0.0, srca);
+
+ case PIXMAN_OP_OUT:
+ return mult_chan (src, dst, 1.0 - dsta, 0.0);
+
+ case PIXMAN_OP_OUT_REVERSE:
+ return mult_chan (src, dst, 0.0, 1.0 - srca);
+
+ case PIXMAN_OP_ATOP:
+ return mult_chan (src, dst, dsta, 1.0 - srca);
+
+ case PIXMAN_OP_ATOP_REVERSE:
+ return mult_chan (src, dst, 1.0 - dsta, srca);
+
+ case PIXMAN_OP_XOR:
+ return mult_chan (src, dst, 1.0 - dsta, 1.0 - srca);
+
+ case PIXMAN_OP_ADD:
+ return mult_chan (src, dst, 1.0, 1.0);
+
+ case PIXMAN_OP_SATURATE:
+ case PIXMAN_OP_DISJOINT_OVER_REVERSE:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = MIN (1.0, (1.0 - dsta) / srca);
+ return mult_chan (src, dst, Fa, 1.0);
+
+ case PIXMAN_OP_DISJOINT_OVER:
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = MIN (1.0, (1.0 - srca) / dsta);
+ return mult_chan (src, dst, 1.0, Fb);
+
+ case PIXMAN_OP_DISJOINT_IN:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = MAX (0.0, 1.0 - (1.0 - dsta) / srca);
+ return mult_chan (src, dst, Fa, 0.0);
+
+ case PIXMAN_OP_DISJOINT_IN_REVERSE:
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = MAX (0.0, 1.0 - (1.0 - srca) / dsta);
+ return mult_chan (src, dst, 0.0, Fb);
+
+ case PIXMAN_OP_DISJOINT_OUT:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = MIN (1.0, (1.0 - dsta) / srca);
+ return mult_chan (src, dst, Fa, 0.0);
+
+ case PIXMAN_OP_DISJOINT_OUT_REVERSE:
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = MIN (1.0, (1.0 - srca) / dsta);
+ return mult_chan (src, dst, 0.0, Fb);
+
+ case PIXMAN_OP_DISJOINT_ATOP:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = MAX (0.0, 1.0 - (1.0 - dsta) / srca);
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = MIN (1.0, (1.0 - srca) / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_DISJOINT_ATOP_REVERSE:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = MIN (1.0, (1.0 - dsta) / srca);
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = MAX (0.0, 1.0 - (1.0 - srca) / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_DISJOINT_XOR:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = MIN (1.0, (1.0 - dsta) / srca);
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = MIN (1.0, (1.0 - srca) / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_CONJOINT_OVER:
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = MAX (0.0, 1.0 - srca / dsta);
+ return mult_chan (src, dst, 1.0, Fb);
+
+ case PIXMAN_OP_CONJOINT_OVER_REVERSE:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = MAX (0.0, 1.0 - dsta / srca);
+ return mult_chan (src, dst, Fa, 1.0);
+
+ case PIXMAN_OP_CONJOINT_IN:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = MIN (1.0, dsta / srca);
+ return mult_chan (src, dst, Fa, 0.0);
+
+ case PIXMAN_OP_CONJOINT_IN_REVERSE:
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = MIN (1.0, srca / dsta);
+ return mult_chan (src, dst, 0.0, Fb);
+
+ case PIXMAN_OP_CONJOINT_OUT:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = MAX (0.0, 1.0 - dsta / srca);
+ return mult_chan (src, dst, Fa, 0.0);
+
+ case PIXMAN_OP_CONJOINT_OUT_REVERSE:
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = MAX (0.0, 1.0 - srca / dsta);
+ return mult_chan (src, dst, 0.0, Fb);
+
+ case PIXMAN_OP_CONJOINT_ATOP:
+ if (srca == 0.0)
+ Fa = 1.0;
+ else
+ Fa = MIN (1.0, dsta / srca);
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = MAX (0.0, 1.0 - srca / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_CONJOINT_ATOP_REVERSE:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = MAX (0.0, 1.0 - dsta / srca);
+ if (dsta == 0.0)
+ Fb = 1.0;
+ else
+ Fb = MIN (1.0, srca / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_CONJOINT_XOR:
+ if (srca == 0.0)
+ Fa = 0.0;
+ else
+ Fa = MAX (0.0, 1.0 - dsta / srca);
+ if (dsta == 0.0)
+ Fb = 0.0;
+ else
+ Fb = MAX (0.0, 1.0 - srca / dsta);
+ return mult_chan (src, dst, Fa, Fb);
+
+ case PIXMAN_OP_MULTIPLY:
+ case PIXMAN_OP_SCREEN:
+ case PIXMAN_OP_OVERLAY:
+ case PIXMAN_OP_DARKEN:
+ case PIXMAN_OP_LIGHTEN:
+ case PIXMAN_OP_COLOR_DODGE:
+ case PIXMAN_OP_COLOR_BURN:
+ case PIXMAN_OP_HARD_LIGHT:
+ case PIXMAN_OP_SOFT_LIGHT:
+ case PIXMAN_OP_DIFFERENCE:
+ case PIXMAN_OP_EXCLUSION:
+ case PIXMAN_OP_HSL_HUE:
+ case PIXMAN_OP_HSL_SATURATION:
+ case PIXMAN_OP_HSL_COLOR:
+ case PIXMAN_OP_HSL_LUMINOSITY:
+ default:
+ abort();
+ return 0; /* silence MSVC */
+ }
+#undef mult_chan
+}
+
+void
+do_composite (pixman_op_t op,
+ const color_t *src,
+ const color_t *mask,
+ const color_t *dst,
+ color_t *result,
+ pixman_bool_t component_alpha)
+{
+ color_t srcval, srcalpha;
+
+ if (mask == NULL)
+ {
+ srcval = *src;
+
+ srcalpha.r = src->a;
+ srcalpha.g = src->a;
+ srcalpha.b = src->a;
+ srcalpha.a = src->a;
+ }
+ else if (component_alpha)
+ {
+ srcval.r = src->r * mask->r;
+ srcval.g = src->g * mask->g;
+ srcval.b = src->b * mask->b;
+ srcval.a = src->a * mask->a;
+
+ srcalpha.r = src->a * mask->r;
+ srcalpha.g = src->a * mask->g;
+ srcalpha.b = src->a * mask->b;
+ srcalpha.a = src->a * mask->a;
+ }
+ else
+ {
+ srcval.r = src->r * mask->a;
+ srcval.g = src->g * mask->a;
+ srcval.b = src->b * mask->a;
+ srcval.a = src->a * mask->a;
+
+ srcalpha.r = src->a * mask->a;
+ srcalpha.g = src->a * mask->a;
+ srcalpha.b = src->a * mask->a;
+ srcalpha.a = src->a * mask->a;
+ }
+
+ result->r = calc_op (op, srcval.r, dst->r, srcalpha.r, dst->a);
+ result->g = calc_op (op, srcval.g, dst->g, srcalpha.g, dst->a);
+ result->b = calc_op (op, srcval.b, dst->b, srcalpha.b, dst->a);
+ result->a = calc_op (op, srcval.a, dst->a, srcalpha.a, dst->a);
+}
+
+static double
+round_channel (double p, int m)
+{
+ int t;
+ double r;
+
+ t = p * ((1 << m));
+ t -= t >> m;
+
+ r = t / (double)((1 << m) - 1);
+
+ return r;
+}
+
+void
+round_color (pixman_format_code_t format, color_t *color)
+{
+ if (PIXMAN_FORMAT_R (format) == 0)
+ {
+ color->r = 0.0;
+ color->g = 0.0;
+ color->b = 0.0;
+ }
+ else
+ {
+ color->r = round_channel (color->r, PIXMAN_FORMAT_R (format));
+ color->g = round_channel (color->g, PIXMAN_FORMAT_G (format));
+ color->b = round_channel (color->b, PIXMAN_FORMAT_B (format));
+ }
+
+ if (PIXMAN_FORMAT_A (format) == 0)
+ color->a = 1;
+ else
+ color->a = round_channel (color->a, PIXMAN_FORMAT_A (format));
+}
+
+/* Check whether @pixel is a valid quantization of the a, r, g, b
+ * parameters. Some slack is permitted.
+ */
+void
+pixel_checker_init (pixel_checker_t *checker, pixman_format_code_t format)
+{
+ assert (PIXMAN_FORMAT_VIS (format));
+
+ checker->format = format;
+
+ switch (PIXMAN_FORMAT_TYPE (format))
+ {
+ case PIXMAN_TYPE_A:
+ checker->bs = 0;
+ checker->gs = 0;
+ checker->rs = 0;
+ checker->as = 0;
+ break;
+
+ case PIXMAN_TYPE_ARGB:
+ case PIXMAN_TYPE_ARGB_SRGB:
+ checker->bs = 0;
+ checker->gs = checker->bs + PIXMAN_FORMAT_B (format);
+ checker->rs = checker->gs + PIXMAN_FORMAT_G (format);
+ checker->as = checker->rs + PIXMAN_FORMAT_R (format);
+ break;
+
+ case PIXMAN_TYPE_ABGR:
+ checker->rs = 0;
+ checker->gs = checker->rs + PIXMAN_FORMAT_R (format);
+ checker->bs = checker->gs + PIXMAN_FORMAT_G (format);
+ checker->as = checker->bs + PIXMAN_FORMAT_B (format);
+ break;
+
+ case PIXMAN_TYPE_BGRA:
+ /* With BGRA formats we start counting at the high end of the pixel */
+ checker->bs = PIXMAN_FORMAT_BPP (format) - PIXMAN_FORMAT_B (format);
+ checker->gs = checker->bs - PIXMAN_FORMAT_B (format);
+ checker->rs = checker->gs - PIXMAN_FORMAT_G (format);
+ checker->as = checker->rs - PIXMAN_FORMAT_R (format);
+ break;
+
+ case PIXMAN_TYPE_RGBA:
+ /* With BGRA formats we start counting at the high end of the pixel */
+ checker->rs = PIXMAN_FORMAT_BPP (format) - PIXMAN_FORMAT_R (format);
+ checker->gs = checker->rs - PIXMAN_FORMAT_R (format);
+ checker->bs = checker->gs - PIXMAN_FORMAT_G (format);
+ checker->as = checker->bs - PIXMAN_FORMAT_B (format);
+ break;
+
+ default:
+ assert (0);
+ break;
+ }
+
+ checker->am = ((1 << PIXMAN_FORMAT_A (format)) - 1) << checker->as;
+ checker->rm = ((1 << PIXMAN_FORMAT_R (format)) - 1) << checker->rs;
+ checker->gm = ((1 << PIXMAN_FORMAT_G (format)) - 1) << checker->gs;
+ checker->bm = ((1 << PIXMAN_FORMAT_B (format)) - 1) << checker->bs;
+
+ checker->aw = PIXMAN_FORMAT_A (format);
+ checker->rw = PIXMAN_FORMAT_R (format);
+ checker->gw = PIXMAN_FORMAT_G (format);
+ checker->bw = PIXMAN_FORMAT_B (format);
+}
+
+void
+pixel_checker_split_pixel (const pixel_checker_t *checker, uint32_t pixel,
+ int *a, int *r, int *g, int *b)
+{
+ *a = (pixel & checker->am) >> checker->as;
+ *r = (pixel & checker->rm) >> checker->rs;
+ *g = (pixel & checker->gm) >> checker->gs;
+ *b = (pixel & checker->bm) >> checker->bs;
+}
+
+void
+pixel_checker_get_masks (const pixel_checker_t *checker,
+ uint32_t *am,
+ uint32_t *rm,
+ uint32_t *gm,
+ uint32_t *bm)
+{
+ if (am)
+ *am = checker->am;
+ if (rm)
+ *rm = checker->rm;
+ if (gm)
+ *gm = checker->gm;
+ if (bm)
+ *bm = checker->bm;
+}
+
+void
+pixel_checker_convert_pixel_to_color (const pixel_checker_t *checker,
+ uint32_t pixel, color_t *color)
+{
+ int a, r, g, b;
+
+ pixel_checker_split_pixel (checker, pixel, &a, &r, &g, &b);
+
+ if (checker->am == 0)
+ color->a = 1.0;
+ else
+ color->a = a / (double)(checker->am >> checker->as);
+
+ if (checker->rm == 0)
+ color->r = 0.0;
+ else
+ color->r = r / (double)(checker->rm >> checker->rs);
+
+ if (checker->gm == 0)
+ color->g = 0.0;
+ else
+ color->g = g / (double)(checker->gm >> checker->gs);
+
+ if (checker->bm == 0)
+ color->b = 0.0;
+ else
+ color->b = b / (double)(checker->bm >> checker->bs);
+
+ if (PIXMAN_FORMAT_TYPE (checker->format) == PIXMAN_TYPE_ARGB_SRGB)
+ {
+ color->r = convert_srgb_to_linear (color->r);
+ color->g = convert_srgb_to_linear (color->g);
+ color->b = convert_srgb_to_linear (color->b);
+ }
+}
+
+static int32_t
+convert (double v, uint32_t width, uint32_t mask, uint32_t shift, double def)
+{
+ int32_t r;
+
+ if (!mask)
+ v = def;
+
+ r = (v * ((mask >> shift) + 1));
+ r -= r >> width;
+
+ return r;
+}
+
+static void
+get_limits (const pixel_checker_t *checker, double limit,
+ color_t *color,
+ int *ao, int *ro, int *go, int *bo)
+{
+ color_t tmp;
+
+ if (PIXMAN_FORMAT_TYPE (checker->format) == PIXMAN_TYPE_ARGB_SRGB)
+ {
+ tmp.a = color->a;
+ tmp.r = convert_linear_to_srgb (color->r);
+ tmp.g = convert_linear_to_srgb (color->g);
+ tmp.b = convert_linear_to_srgb (color->b);
+
+ color = &tmp;
+ }
+
+ *ao = convert (color->a + limit, checker->aw, checker->am, checker->as, 1.0);
+ *ro = convert (color->r + limit, checker->rw, checker->rm, checker->rs, 0.0);
+ *go = convert (color->g + limit, checker->gw, checker->gm, checker->gs, 0.0);
+ *bo = convert (color->b + limit, checker->bw, checker->bm, checker->bs, 0.0);
+}
+
+/* The acceptable deviation in units of [0.0, 1.0]
+ */
+#define DEVIATION (0.0064)
+
+void
+pixel_checker_get_max (const pixel_checker_t *checker, color_t *color,
+ int *am, int *rm, int *gm, int *bm)
+{
+ get_limits (checker, DEVIATION, color, am, rm, gm, bm);
+}
+
+void
+pixel_checker_get_min (const pixel_checker_t *checker, color_t *color,
+ int *am, int *rm, int *gm, int *bm)
+{
+ get_limits (checker, - DEVIATION, color, am, rm, gm, bm);
+}
+
+pixman_bool_t
+pixel_checker_check (const pixel_checker_t *checker, uint32_t pixel,
+ color_t *color)
+{
+ int32_t a_lo, a_hi, r_lo, r_hi, g_lo, g_hi, b_lo, b_hi;
+ int32_t ai, ri, gi, bi;
+ pixman_bool_t result;
+
+ pixel_checker_get_min (checker, color, &a_lo, &r_lo, &g_lo, &b_lo);
+ pixel_checker_get_max (checker, color, &a_hi, &r_hi, &g_hi, &b_hi);
+ pixel_checker_split_pixel (checker, pixel, &ai, &ri, &gi, &bi);
+
+ result =
+ a_lo <= ai && ai <= a_hi &&
+ r_lo <= ri && ri <= r_hi &&
+ g_lo <= gi && gi <= g_hi &&
+ b_lo <= bi && bi <= b_hi;
+
+ return result;
+}
diff --git a/qemu/pixman/test/utils.h b/qemu/pixman/test/utils.h
new file mode 100644
index 000000000..ebb14d9e4
--- /dev/null
+++ b/qemu/pixman/test/utils.h
@@ -0,0 +1,247 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <assert.h>
+#include "pixman-private.h" /* For 'inline' definition */
+#include "utils-prng.h"
+
+#if defined(_MSC_VER)
+#define snprintf _snprintf
+#define strcasecmp _stricmp
+#endif
+
+#define ARRAY_LENGTH(A) ((int) (sizeof (A) / sizeof ((A) [0])))
+
+/* A primitive pseudorandom number generator,
+ * taken from POSIX.1-2001 example
+ */
+
+extern prng_t prng_state_data;
+extern prng_t *prng_state;
+#ifdef USE_OPENMP
+#pragma omp threadprivate(prng_state_data)
+#pragma omp threadprivate(prng_state)
+#endif
+
+static inline uint32_t
+prng_rand (void)
+{
+ return prng_rand_r (prng_state);
+}
+
+static inline void
+prng_srand (uint32_t seed)
+{
+ if (!prng_state)
+ {
+ /* Without setting a seed, PRNG does not work properly (is just
+ * returning zeros). So we only initialize the pointer here to
+ * make sure that 'prng_srand' is always called before any
+ * other 'prng_*' function. The wrongdoers violating this order
+ * will get a segfault. */
+ prng_state = &prng_state_data;
+ }
+ prng_srand_r (prng_state, seed);
+}
+
+static inline uint32_t
+prng_rand_n (int max)
+{
+ return prng_rand () % max;
+}
+
+static inline void
+prng_randmemset (void *buffer, size_t size, prng_randmemset_flags_t flags)
+{
+ prng_randmemset_r (prng_state, buffer, size, flags);
+}
+
+/* CRC 32 computation
+ */
+uint32_t
+compute_crc32 (uint32_t in_crc32,
+ const void *buf,
+ size_t buf_len);
+
+uint32_t
+compute_crc32_for_image (uint32_t in_crc32,
+ pixman_image_t *image);
+
+/* Print the image in hexadecimal */
+void
+print_image (pixman_image_t *image);
+
+/* Returns TRUE if running on a little endian system
+ */
+static force_inline pixman_bool_t
+is_little_endian (void)
+{
+ unsigned long endian_check_var = 1;
+ return *(unsigned char *)&endian_check_var == 1;
+}
+
+/* perform endian conversion of pixel data
+ */
+void
+image_endian_swap (pixman_image_t *img);
+
+/* Allocate memory that is bounded by protected pages,
+ * so that out-of-bounds access will cause segfaults
+ */
+void *
+fence_malloc (int64_t len);
+
+void
+fence_free (void *data);
+
+/* Generate n_bytes random bytes in fence_malloced memory */
+uint8_t *
+make_random_bytes (int n_bytes);
+
+/* Return current time in seconds */
+double
+gettime (void);
+
+uint32_t
+get_random_seed (void);
+
+/* main body of the fuzzer test */
+int
+fuzzer_test_main (const char *test_name,
+ int default_number_of_iterations,
+ uint32_t expected_checksum,
+ uint32_t (*test_function)(int testnum, int verbose),
+ int argc,
+ const char *argv[]);
+
+void
+fail_after (int seconds, const char *msg);
+
+/* If possible, enable traps for floating point exceptions */
+void enable_divbyzero_exceptions(void);
+
+/* Converts a8r8g8b8 pixels to pixels that
+ * - are not premultiplied,
+ * - are stored in this order in memory: R, G, B, A, regardless of
+ * the endianness of the computer.
+ * It is allowed for @src and @dst to point to the same memory buffer.
+ */
+void
+a8r8g8b8_to_rgba_np (uint32_t *dst, uint32_t *src, int n_pixels);
+
+pixman_bool_t
+write_png (pixman_image_t *image, const char *filename);
+
+void
+draw_checkerboard (pixman_image_t *image,
+ int check_size,
+ uint32_t color1, uint32_t color2);
+
+/* A pair of macros which can help to detect corruption of
+ * floating point registers after a function call. This may
+ * happen if _mm_empty() call is forgotten in MMX/SSE2 fast
+ * path code, or ARM NEON assembly optimized function forgets
+ * to save/restore d8-d15 registers before use.
+ */
+
+#define FLOAT_REGS_CORRUPTION_DETECTOR_START() \
+ static volatile double frcd_volatile_constant1 = 123451; \
+ static volatile double frcd_volatile_constant2 = 123452; \
+ static volatile double frcd_volatile_constant3 = 123453; \
+ static volatile double frcd_volatile_constant4 = 123454; \
+ static volatile double frcd_volatile_constant5 = 123455; \
+ static volatile double frcd_volatile_constant6 = 123456; \
+ static volatile double frcd_volatile_constant7 = 123457; \
+ static volatile double frcd_volatile_constant8 = 123458; \
+ double frcd_canary_variable1 = frcd_volatile_constant1; \
+ double frcd_canary_variable2 = frcd_volatile_constant2; \
+ double frcd_canary_variable3 = frcd_volatile_constant3; \
+ double frcd_canary_variable4 = frcd_volatile_constant4; \
+ double frcd_canary_variable5 = frcd_volatile_constant5; \
+ double frcd_canary_variable6 = frcd_volatile_constant6; \
+ double frcd_canary_variable7 = frcd_volatile_constant7; \
+ double frcd_canary_variable8 = frcd_volatile_constant8;
+
+#define FLOAT_REGS_CORRUPTION_DETECTOR_FINISH() \
+ assert (frcd_canary_variable1 == frcd_volatile_constant1); \
+ assert (frcd_canary_variable2 == frcd_volatile_constant2); \
+ assert (frcd_canary_variable3 == frcd_volatile_constant3); \
+ assert (frcd_canary_variable4 == frcd_volatile_constant4); \
+ assert (frcd_canary_variable5 == frcd_volatile_constant5); \
+ assert (frcd_canary_variable6 == frcd_volatile_constant6); \
+ assert (frcd_canary_variable7 == frcd_volatile_constant7); \
+ assert (frcd_canary_variable8 == frcd_volatile_constant8);
+
+/* Try to get an aligned memory chunk */
+void *
+aligned_malloc (size_t align, size_t size);
+
+double
+convert_srgb_to_linear (double component);
+
+double
+convert_linear_to_srgb (double component);
+
+void
+initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb);
+
+const char *
+operator_name (pixman_op_t op);
+
+const char *
+format_name (pixman_format_code_t format);
+
+typedef struct
+{
+ double r, g, b, a;
+} color_t;
+
+void
+do_composite (pixman_op_t op,
+ const color_t *src,
+ const color_t *mask,
+ const color_t *dst,
+ color_t *result,
+ pixman_bool_t component_alpha);
+
+void
+round_color (pixman_format_code_t format, color_t *color);
+
+typedef struct
+{
+ pixman_format_code_t format;
+ uint32_t am, rm, gm, bm;
+ uint32_t as, rs, gs, bs;
+ uint32_t aw, rw, gw, bw;
+} pixel_checker_t;
+
+void
+pixel_checker_init (pixel_checker_t *checker, pixman_format_code_t format);
+
+void
+pixel_checker_split_pixel (const pixel_checker_t *checker, uint32_t pixel,
+ int *a, int *r, int *g, int *b);
+
+void
+pixel_checker_get_max (const pixel_checker_t *checker, color_t *color,
+ int *a, int *r, int *g, int *b);
+
+void
+pixel_checker_get_min (const pixel_checker_t *checker, color_t *color,
+ int *a, int *r, int *g, int *b);
+
+pixman_bool_t
+pixel_checker_check (const pixel_checker_t *checker,
+ uint32_t pixel, color_t *color);
+
+void
+pixel_checker_convert_pixel_to_color (const pixel_checker_t *checker,
+ uint32_t pixel, color_t *color);
+
+void
+pixel_checker_get_masks (const pixel_checker_t *checker,
+ uint32_t *am,
+ uint32_t *rm,
+ uint32_t *gm,
+ uint32_t *bm);