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Reimplement rjpeg_process_image

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This commit is contained in:
twinaphex 2016-05-24 20:19:17 +02:00
parent ae4cd05690
commit d04810f5fd
1 changed files with 13 additions and 6 deletions
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19
libretro-common/formats/jpeg/rjpeg.c
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@ -67,7 +67,6 @@ typedef struct
struct rjpeg
{
uint8_t *buff_data;
uint32_t *output_image;
void *empty;
};
@ -2520,26 +2519,34 @@ int rjpeg_process_image(rjpeg_t *rjpeg, void **buf_data,
size_t size, unsigned *width, unsigned *height)
{
int comp;
uint32_t *img = NULL;
uint32_t **pixels = (uint32_t**)buf_data;
unsigned size_tex = 0;
if (!rjpeg)
return IMAGE_PROCESS_ERROR;
rjpeg->output_image = (uint32_t*)rjpeg_load_from_memory(rjpeg->buff_data, size, width, height, &comp, 4);
*buf_data = rjpeg->output_image;
size_tex = (*width) * (*height);
img = (uint32_t*)rjpeg_load_from_memory(rjpeg->buff_data, size, width, height, &comp, 4);
if (!img)
return IMAGE_PROCESS_ERROR;
size_tex = (*width) * (*height);
*pixels = (uint32_t*)malloc(size_tex * sizeof(uint32_t));
/* Convert RGBA to ARGB */
do
{
unsigned int texel = rjpeg->output_image[size_tex];
unsigned int texel = img[size_tex];
unsigned int A = texel & 0xFF000000;
unsigned int B = texel & 0x00FF0000;
unsigned int G = texel & 0x0000FF00;
unsigned int R = texel & 0x000000FF;
((unsigned int*)rjpeg->output_image)[size_tex] = A | (R << 16) | G | (B >> 16);
((unsigned int*)*pixels)[size_tex] = A | (R << 16) | G | (B >> 16);
}while(size_tex--);
free(img);
return IMAGE_PROCESS_END;
}