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lock unlock

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This commit is contained in:
p.kosyh 2011-04-13 18:04:18 +00:00
parent 46c0de716b
commit 91a46a853f
1 changed files with 2 additions and 0 deletions
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2
src/sdl-instead/graphics.c
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@ -593,6 +593,7 @@ img_t gfx_alpha_img(img_t src, int alpha)
if (!img)
return NULL;
SDL_SetAlpha(img, SDL_SRCALPHA, SDL_ALPHA_OPAQUE);
SDL_LockSurface(img);
ptr = (Uint32*)img->pixels;
size = img->w * img->h;
while (size --) {
@ -603,6 +604,7 @@ img_t gfx_alpha_img(img_t src, int alpha)
*ptr = col;
ptr ++;
}
SDL_UnlockSurface(img);
return img;
}