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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/hw/display/milkymist-vgafb_template.h
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/hw/display/milkymist-vgafb_template.h')
-rw-r--r--qemu/hw/display/milkymist-vgafb_template.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/qemu/hw/display/milkymist-vgafb_template.h b/qemu/hw/display/milkymist-vgafb_template.h
new file mode 100644
index 000000000..48837809e
--- /dev/null
+++ b/qemu/hw/display/milkymist-vgafb_template.h
@@ -0,0 +1,74 @@
+/*
+ * QEMU model of the Milkymist VGA framebuffer.
+ *
+ * Copyright (c) 2010 Michael Walle <michael@walle.cc>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#if BITS == 8
+#define COPY_PIXEL(to, r, g, b) \
+ do { \
+ *to = rgb_to_pixel8(r, g, b); \
+ to += 1; \
+ } while (0)
+#elif BITS == 15
+#define COPY_PIXEL(to, r, g, b) \
+ do { \
+ *(uint16_t *)to = rgb_to_pixel15(r, g, b); \
+ to += 2; \
+ } while (0)
+#elif BITS == 16
+#define COPY_PIXEL(to, r, g, b) \
+ do { \
+ *(uint16_t *)to = rgb_to_pixel16(r, g, b); \
+ to += 2; \
+ } while (0)
+#elif BITS == 24
+#define COPY_PIXEL(to, r, g, b) \
+ do { \
+ uint32_t tmp = rgb_to_pixel24(r, g, b); \
+ *(to++) = tmp & 0xff; \
+ *(to++) = (tmp >> 8) & 0xff; \
+ *(to++) = (tmp >> 16) & 0xff; \
+ } while (0)
+#elif BITS == 32
+#define COPY_PIXEL(to, r, g, b) \
+ do { \
+ *(uint32_t *)to = rgb_to_pixel32(r, g, b); \
+ to += 4; \
+ } while (0)
+#else
+#error unknown bit depth
+#endif
+
+static void glue(draw_line_, BITS)(void *opaque, uint8_t *d, const uint8_t *s,
+ int width, int deststep)
+{
+ uint16_t rgb565;
+ uint8_t r, g, b;
+
+ while (width--) {
+ rgb565 = lduw_be_p(s);
+ r = ((rgb565 >> 11) & 0x1f) << 3;
+ g = ((rgb565 >> 5) & 0x3f) << 2;
+ b = ((rgb565 >> 0) & 0x1f) << 3;
+ COPY_PIXEL(d, r, g, b);
+ s += 2;
+ }
+}
+
+#undef BITS
+#undef COPY_PIXEL