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(RPNG) Refactor png_reverse_filter_regular_loop

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This commit is contained in:
twinaphex 2015-03-14 00:01:30 +01:00
parent 752f5dc42b
commit 68ef4e7b72
1 changed files with 13 additions and 17 deletions
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30
libretro-common/formats/png/rpng_decode_common.h
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@ -429,28 +429,24 @@ static int png_reverse_filter_iterate(uint32_t *data, const struct png_ihdr *ihd
static int png_reverse_filter_regular_loop(uint32_t **data_, const struct png_ihdr *ihdr,
struct rpng_process_t *pngp)
{
uint32_t *data = *data_;
int ret;
int ret = png_reverse_filter_iterate(*data_, ihdr, pngp);
do
switch (ret)
{
ret = png_reverse_filter_iterate(data, ihdr, pngp);
switch (ret)
{
case PNG_PROCESS_ERROR:
case PNG_PROCESS_ERROR_END:
case PNG_PROCESS_END:
break;
case PNG_PROCESS_NEXT:
data += ihdr->width;
pngp->data_restore_buf_size += ihdr->width;
}
}while(ret == PNG_PROCESS_NEXT);
case PNG_PROCESS_ERROR:
case PNG_PROCESS_ERROR_END:
case PNG_PROCESS_END:
break;
case PNG_PROCESS_NEXT:
*data_ += ihdr->width;
pngp->data_restore_buf_size += ihdr->width;
return PNG_PROCESS_NEXT;
}
pngp->inflate_buf -= pngp->restore_buf_size;
*data_ -= pngp->data_restore_buf_size;
pngp->data_restore_buf_size = 0;
return ret;
}