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gl optimization and im2d shader override

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aap
2020-08-11 18:41:13 +02:00
parent 113d76cfaa
commit 5e299fb12e
8 changed files with 119 additions and 42 deletions
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61
tools/playground/main.cpp
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@@ -175,6 +175,65 @@ setupClump(rw::Clump *clump)
}
}
#define MUL(x, y) ((x)*(y)/255)
int
calcVCfx(int fb, int col, int a, int iter)
{
int prev = fb;
int col2 = col*2;
if(col2 > 255) col2 = 255;
for(int i = 0; i < iter; i++){
int tmp = MUL(fb, 255-a) + MUL(MUL(prev, col2), a);
tmp += MUL(prev, col);
tmp += MUL(prev, col);
prev = tmp > 255 ? 255 : tmp;
}
return prev;
}
int
calcIIIfx(int fb, int col, int a, int iter)
{
int prev = fb;
for(int i = 0; i < iter; i++){
int tmp = MUL(fb, 255-a) + MUL(MUL(prev, col), a);
prev = tmp > 255 ? 255 : tmp;
}
return prev;
}
void
postfxtest(void)
{
rw::Image *img = rw::Image::create(256, 256, 32);
img->allocate();
int x, y;
int iter;
static char filename[100];
for(iter = 0; iter < 10; iter++){
for(y = 0; y < 256; y++)
for(x = 0; x < 256; x++){
int res = calcVCfx(y, x, 30, iter);
// int res = calcIIIfx(y, x, 30, iter);
if(0 && res == y){
img->pixels[y*img->stride + x*img->bpp + 0] = 255;
img->pixels[y*img->stride + x*img->bpp + 1] = 0;
img->pixels[y*img->stride + x*img->bpp + 2] = 0;
}else{
img->pixels[y*img->stride + x*img->bpp + 0] = res;
img->pixels[y*img->stride + x*img->bpp + 1] = res;
img->pixels[y*img->stride + x*img->bpp + 2] = res;
}
img->pixels[y*img->stride + x*img->bpp + 3] = 255;
}
sprintf(filename, "vcfx_%02d.bmp", iter);
// sprintf(filename, "iiifx_%02d.bmp", iter);
rw::writeBMP(img, filename);
}
exit(0);
}
bool
InitRW(void)
{
@@ -184,6 +243,8 @@ InitRW(void)
rw::d3d::isP8supported = false;
postfxtest();
initFont();
rw::RGBA foreground = { 255, 255, 0, 255 };