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Fix QNT CGs with alpha channel

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Properly specift pixel format.
This commit is contained in:
Nunuhara Cabbage
2019-11-20 19:00:59 -08:00
parent e6f41f55b8
commit 71c74fe910
1 changed files with 10 additions and 7 deletions
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qnt.c
+10 -7
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@@ -263,10 +263,10 @@ void qnt_extract(struct cg *cg, uint8_t *data)
uint8_t *tmp = malloc((qnt->width+10) * (qnt->height+10) * 4);
extract_alpha(qnt, alpha, data + qnt->hdr_size + qnt->pixel_size);
for (int src_i = 0, dst_i = 0, p = 0; p < qnt->width * qnt->height; p++) {
tmp[dst_i++] = pixels[src_i++];
tmp[dst_i++] = pixels[src_i++];
tmp[dst_i++] = pixels[src_i++];
tmp[dst_i++] = alpha[p];
tmp[dst_i++] = pixels[src_i++];
tmp[dst_i++] = pixels[src_i++];
tmp[dst_i++] = pixels[src_i++];
}
free(alpha);
free(pixels);
@@ -275,11 +275,14 @@ void qnt_extract(struct cg *cg, uint8_t *data)
rmask = 0xFF00;
gmask = 0xFF0000;
bmask = 0xFF000000;
}
// create SDL surface
cg->s = SDL_CreateRGBSurfaceFrom(pixels, qnt->width, qnt->height, 24, qnt->width * 3,
rmask, gmask, bmask, amask);
cg->s = SDL_CreateRGBSurfaceFrom(pixels, qnt->width, qnt->height, 32, qnt->width * 4,
rmask, gmask, bmask, amask);
} else {
// create SDL surface
cg->s = SDL_CreateRGBSurfaceFrom(pixels, qnt->width, qnt->height, 24, qnt->width * 3,
rmask, gmask, bmask, amask);
}
if (!cg->s)
ERROR("Creating surface failed: %s", SDL_GetError());