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-rw-r--r--qemu/hw/display/sm501_template.h145
1 files changed, 145 insertions, 0 deletions
diff --git a/qemu/hw/display/sm501_template.h b/qemu/hw/display/sm501_template.h
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+++ b/qemu/hw/display/sm501_template.h
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+/*
+ * Pixel drawing function templates for QEMU SM501 Device
+ *
+ * Copyright (c) 2008 Shin-ichiro KAWASAKI
+ *
+ * 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 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.
+ */
+
+#if DEPTH == 8
+#define BPP 1
+#define PIXEL_TYPE uint8_t
+#elif DEPTH == 15 || DEPTH == 16
+#define BPP 2
+#define PIXEL_TYPE uint16_t
+#elif DEPTH == 32
+#define BPP 4
+#define PIXEL_TYPE uint32_t
+#else
+#error unsupport depth
+#endif
+
+#ifdef BGR_FORMAT
+#define PIXEL_NAME glue(DEPTH, bgr)
+#else
+#define PIXEL_NAME DEPTH
+#endif /* BGR_FORMAT */
+
+
+static void glue(draw_line8_, PIXEL_NAME)(
+ uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
+{
+ uint8_t v, r, g, b;
+ do {
+ v = ldub_p(s);
+ r = (pal[v] >> 16) & 0xff;
+ g = (pal[v] >> 8) & 0xff;
+ b = (pal[v] >> 0) & 0xff;
+ ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
+ s ++;
+ d += BPP;
+ } while (-- width != 0);
+}
+
+static void glue(draw_line16_, PIXEL_NAME)(
+ uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
+{
+ uint16_t rgb565;
+ uint8_t r, g, b;
+
+ do {
+ rgb565 = lduw_p(s);
+ r = ((rgb565 >> 11) & 0x1f) << 3;
+ g = ((rgb565 >> 5) & 0x3f) << 2;
+ b = ((rgb565 >> 0) & 0x1f) << 3;
+ ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
+ s += 2;
+ d += BPP;
+ } while (-- width != 0);
+}
+
+static void glue(draw_line32_, PIXEL_NAME)(
+ uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
+{
+ uint8_t r, g, b;
+
+ do {
+ ldub_p(s);
+#if defined(TARGET_WORDS_BIGENDIAN)
+ r = s[1];
+ g = s[2];
+ b = s[3];
+#else
+ b = s[0];
+ g = s[1];
+ r = s[2];
+#endif
+ ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
+ s += 4;
+ d += BPP;
+ } while (-- width != 0);
+}
+
+/**
+ * Draw hardware cursor image on the given line.
+ */
+static void glue(draw_hwc_line_, PIXEL_NAME)(SM501State * s, int crt,
+ uint8_t * palette, int c_y, uint8_t *d, int width)
+{
+ int x, i;
+ uint8_t bitset = 0;
+
+ /* get hardware cursor pattern */
+ uint32_t cursor_addr = get_hwc_address(s, crt);
+ assert(0 <= c_y && c_y < SM501_HWC_HEIGHT);
+ cursor_addr += 64 * c_y / 4; /* 4 pixels per byte */
+ cursor_addr += s->base;
+
+ /* get cursor position */
+ x = get_hwc_x(s, crt);
+ d += x * BPP;
+
+ for (i = 0; i < SM501_HWC_WIDTH && x + i < width; i++) {
+ uint8_t v;
+
+ /* get pixel value */
+ if (i % 4 == 0) {
+ bitset = ldub_phys(&address_space_memory, cursor_addr);
+ cursor_addr++;
+ }
+ v = bitset & 3;
+ bitset >>= 2;
+
+ /* write pixel */
+ if (v) {
+ v--;
+ uint8_t r = palette[v * 3 + 0];
+ uint8_t g = palette[v * 3 + 1];
+ uint8_t b = palette[v * 3 + 2];
+ ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
+ }
+ d += BPP;
+ }
+}
+
+#undef DEPTH
+#undef BPP
+#undef PIXEL_TYPE
+#undef PIXEL_NAME
+#undef BGR_FORMAT