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(RPNG) More cleanups

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This commit is contained in:
twinaphex 2015-03-14 01:56:32 +01:00
parent a14850c915
commit cb9c0828db
1 changed files with 19 additions and 18 deletions
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37
libretro-common/formats/png/rpng_decode.c
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@ -595,31 +595,24 @@ bool png_reverse_filter_loop(struct rpng_t *rpng,
int ret = 0;
const struct png_ihdr *ihdr = NULL;
struct rpng_process_t *pngp = NULL;
rpng->process.adam7_restore_buf_size = 0;
rpng->process.restore_buf_size = 0;
rpng->process.palette = rpng->palette;
if (!rpng)
return false;
ihdr = &rpng->ihdr;
pngp = &rpng->process;
if (ihdr->interlace == 1)
{
do
{
ret = png_reverse_filter_adam7(data,
ihdr, pngp);
}while(ret == PNG_PROCESS_NEXT);
}
else
{
if (png_reverse_filter_init(ihdr, pngp) == -1)
return false;
if (!ihdr || !pngp)
return false;
do{
do
{
if (ihdr->interlace)
ret = png_reverse_filter_adam7(data, ihdr, pngp);
else
ret = png_reverse_filter_regular_loop(data,
ihdr, pngp);
}while(ret == PNG_PROCESS_NEXT);
}
}while(ret == PNG_PROCESS_NEXT);
if (ret == PNG_PROCESS_ERROR || ret == PNG_PROCESS_ERROR_END)
return false;
@ -670,5 +663,13 @@ bool rpng_load_image_argb_process_init(struct rpng_t *rpng,
if (!*data)
return false;
rpng->process.adam7_restore_buf_size = 0;
rpng->process.restore_buf_size = 0;
rpng->process.palette = rpng->palette;
if (rpng->ihdr.interlace != 1)
if (png_reverse_filter_init(&rpng->ihdr, &rpng->process) == -1)
return false;
return true;
}