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Debug info to help track down render test failures

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404182
This commit is contained in:
Sam Lantinga 2009-11-17 06:51:14 +00:00
parent a3226cf7d3
commit 508336f894
3 changed files with 35 additions and 2 deletions
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32
test/automated/common/common.c
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@ -73,5 +73,37 @@ int surface_compare( SDL_Surface *sur, const SurfaceImage_t *img )
SDL_UnlockSurface( sur );
if (ret) {
SDL_SaveBMP(sur, "fail.bmp");
SDL_LockSurface( sur );
bpp = sur->format->BytesPerPixel;
/* Compare image - should be same format. */
if (bpp == 4) {
for (j=0; j<sur->h; j++) {
for (i=0; i<sur->w; i++) {
p = (Uint8 *)sur->pixels + j * sur->pitch + i * bpp;
pd = (Uint8 *)img->pixel_data + (j*img->width + i) * img->bytes_per_pixel;
Uint8 R, G, B, A;
R = pd[0];
G = pd[1];
B = pd[2];
if (img->bytes_per_pixel == 4) {
A = pd[3];
} else {
A = 0;
}
*(Uint32*)p = (A << 24) | (R << 16) | (G << 8) | B;
}
}
}
SDL_UnlockSurface( sur );
SDL_SaveBMP(sur, "good.bmp");
}
return ret;
}