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SDL_image seems to work :)

This commit is contained in:
Themaister 2011-06-11 18:05:52 +02:00
parent d0ba59f8b5
commit 24d0cda5fd
1 changed files with 47 additions and 4 deletions
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51
gfx/image.c
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@ -47,10 +47,53 @@ bool texture_image_load(const char *path, struct texture_image *out_img)
return false; return false;
} }
const uint32_t *read = img->pixels; const SDL_PixelFormat *fmt = img->format;
// Convert ARGB -> RGBA.
for (unsigned i = 0; i < size / sizeof(uint32_t); i++) SSNES_LOG("SDL_image: %dx%d @ %d bpp\n", img->w, img->h, img->format->BitsPerPixel);
out_img->pixels[i] = (read[i] >> 24) | (read[i] << 8); if (img->format->BitsPerPixel == 32)
{
for (unsigned y = 0; y < img->h; y++)
{
uint32_t *dst = out_img->pixels + y * img->w;
const uint32_t *src = (const uint32_t*)img->pixels + y * img->pitch / sizeof(uint32_t);
for (unsigned x = 0; x < img->w; x++)
{
uint32_t r = (src[x] & fmt->Rmask) >> fmt->Rshift;
uint32_t g = (src[x] & fmt->Gmask) >> fmt->Gshift;
uint32_t b = (src[x] & fmt->Bmask) >> fmt->Bshift;
uint32_t a = (src[x] & fmt->Amask) >> fmt->Ashift;
dst[x] = (r << 24) | (g << 16) | (b << 8) | a;
}
}
}
else if (img->format->BitsPerPixel == 24)
{
for (unsigned y = 0; y < img->h; y++)
{
uint32_t *dst = out_img->pixels + y * img->w;
const uint8_t *src = (const uint8_t*)img->pixels + y * img->pitch;
for (unsigned x = 0; x < img->w; x++)
{
// Correct?
uint32_t color = 0;
color |= src[3 * x + 0] << 0;
color |= src[3 * x + 1] << 8;
color |= src[3 * x + 2] << 16;
uint32_t r = (color & fmt->Rmask) >> fmt->Rshift;
uint32_t g = (color & fmt->Gmask) >> fmt->Gshift;
uint32_t b = (color & fmt->Bmask) >> fmt->Bshift;
dst[x] = (r << 24) | (g << 16) | (b << 8) | 0xff;
}
}
}
else
{
SSNES_ERR("8-bit and 16-bit image support are not implemented.\n");
SDL_FreeSurface(img);
return false;
}
SDL_FreeSurface(img); SDL_FreeSurface(img);