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-rw-r--r--plugins/gpu_unai/gpu.cpp23
1 files changed, 14 insertions, 9 deletions
diff --git a/plugins/gpu_unai/gpu.cpp b/plugins/gpu_unai/gpu.cpp
index a7cf495..f0539c0 100644
--- a/plugins/gpu_unai/gpu.cpp
+++ b/plugins/gpu_unai/gpu.cpp
@@ -274,8 +274,9 @@ void GPU_writeDataMem(u32* dmaAddress, s32 dmaCount)
{
if (FrameToWrite)
{
- while (dmaCount--)
+ while (dmaCount)
{
+ dmaCount--;
data = *dmaAddress++;
if ((&pvram[px])>(VIDEO_END)) pvram-=512*1024;
pvram[px] = data;
@@ -830,14 +831,15 @@ static s16 old_res_horz, old_res_vert, old_rgb24;
static void blit(void)
{
+ u16 *base = (u16 *)GPU_FrameBuffer;
s16 isRGB24 = (GPU_GP1 & 0x00200000) ? 1 : 0;
s16 h0, x0, y0, w0, h1;
- u16 *srcs;
+ u32 fb_offs;
u8 *dest;
x0 = DisplayArea[0] & ~1; // alignment needed by blitter
y0 = DisplayArea[1];
- srcs = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0,y0)];
+ fb_offs = FRAME_OFFSET(x0, y0);
w0 = DisplayArea[2];
h0 = DisplayArea[3]; // video mode
@@ -860,22 +862,25 @@ static void blit(void)
if (isRGB24)
{
#ifndef MAEMO
- for (; h1-- > 0; dest += w0 * 3, srcs += 1024)
+ for (; h1-- > 0; dest += w0 * 3, fb_offs += 1024)
{
- bgr888_to_rgb888(dest, srcs, w0 * 3);
+ fb_offs &= 1024*512-1;
+ bgr888_to_rgb888(dest, base + fb_offs, w0 * 3);
}
#else
- for (; h1-- > 0; dest += w0 * 2, srcs += 1024)
+ for (; h1-- > 0; dest += w0 * 2, fb_offs += 1024)
{
- bgr888_to_rgb565(dest, srcs, w0 * 3);
+ fb_offs &= 1024*512-1;
+ bgr888_to_rgb565(dest, base + fb_offs, w0 * 3);
}
#endif
}
else
{
- for (; h1-- > 0; dest += w0 * 2, srcs += 1024)
+ for (; h1-- > 0; dest += w0 * 2, fb_offs += 1024)
{
- bgr555_to_rgb565(dest, srcs, w0 * 2);
+ fb_offs &= 1024*512-1;
+ bgr555_to_rgb565(dest, base + fb_offs, w0 * 2);
}
}