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experimental colorkey blitter test code

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FunkyFr3sh 2022-09-06 10:30:51 +02:00
parent a227aa17d0
commit 58cb1e0a04
1 changed files with 73 additions and 16 deletions
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89
src/ddsurface.c
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@ -244,31 +244,88 @@ HRESULT dds_Blt(
unsigned char key_low = (unsigned char)color_key.dwColorSpaceLowValue;
unsigned char key_high = (unsigned char)color_key.dwColorSpaceHighValue;
for (int y = 0; y < dst_h; y++)
/*
if (src_w == dst_w && src_h == dst_h && !mirror_left_right && !mirror_up_down)
{
int scaled_y = (int)(y * scale_h);
unsigned char* src =
(unsigned char*)src_buf + (src_x * src_surface->lx_pitch) + (src_surface->l_pitch * src_y);
if (mirror_up_down)
scaled_y = src_h - 1 - scaled_y;
unsigned char* dst =
(unsigned char*)dst_buf + (dst_x * This->lx_pitch) + (This->l_pitch * dst_y);
int src_row = src_surface->width * (scaled_y + src_y);
int dst_row = This->width * (y + dst_y);
unsigned int dst_p = This->l_pitch - (dst_w * This->lx_pitch);
unsigned int src_p = src_surface->l_pitch - (dst_w * src_surface->lx_pitch);
for (int x = 0; x < dst_w; x++)
if (key_low == key_high)
{
int scaled_x = (int)(x * scale_w);
if (mirror_left_right)
scaled_x = src_w - 1 - scaled_x;
unsigned char c = ((unsigned char*)src_buf)[scaled_x + src_x + src_row];
if (c < key_low || c > key_high)
for (int y = 0; y < dst_h; y++)
{
((unsigned char*)dst_buf)[x + dst_x + dst_row] = c;
for (int x = 0; x < dst_w; x++)
{
unsigned char c = *src++;
if (c != key_low)
{
*dst = c;
}
dst++;
}
src += src_p;
dst += dst_p;
}
}
else
{
for (int i = 0; i < dst_h; i++)
{
for (int x = 0; x < dst_w; x++)
{
unsigned char c = *src++;
if (c < key_low || c > key_high)
{
*dst = c;
}
dst++;
}
src += src_p;
dst += dst_p;
}
}
}
else
{
*/
for (int y = 0; y < dst_h; y++)
{
int scaled_y = (int)(y * scale_h);
if (mirror_up_down)
scaled_y = src_h - 1 - scaled_y;
int src_row = src_surface->width * (scaled_y + src_y);
int dst_row = This->width * (y + dst_y);
for (int x = 0; x < dst_w; x++)
{
int scaled_x = (int)(x * scale_w);
if (mirror_left_right)
scaled_x = src_w - 1 - scaled_x;
unsigned char c = ((unsigned char*)src_buf)[scaled_x + src_x + src_row];
if (c < key_low || c > key_high)
{
((unsigned char*)dst_buf)[x + dst_x + dst_row] = c;
}
}
}
//}
}
else if (This->bpp == 16)
{