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Create png_reverse_filter_adam7_process

This commit is contained in:
twinaphex 2015-03-13 17:53:40 +01:00
parent 6217739f05
commit 1444c14b38
1 changed files with 22 additions and 12 deletions
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34
libretro-common/formats/png/rpng_decode_common.h
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@ -425,6 +425,27 @@ static bool png_reverse_filter(uint32_t *data, const struct png_ihdr *ihdr,
return false; return false;
} }
static void png_reverse_filter_adam7_process(uint32_t *data,
const struct png_ihdr *ihdr,
const uint8_t *inflate_buf, struct rpng_process_t *pngp)
{
if (!pngp)
return;
inflate_buf += pngp->pass.size;
pngp->stream.total_out -= pngp->pass.size;
deinterlace_pass(data,
ihdr, pngp->data, pngp->pass.width, pngp->pass.height, &passes[pngp->pass.pos]);
free(pngp->data);
pngp->pass.width = 0;
pngp->pass.height = 0;
pngp->pass.size = 0;
pngp->adam7_pass_initialized = false;
}
static int png_reverse_filter_adam7(uint32_t *data, static int png_reverse_filter_adam7(uint32_t *data,
const struct png_ihdr *ihdr, const struct png_ihdr *ihdr,
const uint8_t *inflate_buf, struct rpng_process_t *pngp, const uint8_t *inflate_buf, struct rpng_process_t *pngp,
@ -447,18 +468,7 @@ static int png_reverse_filter_adam7(uint32_t *data,
return -1; return -1;
} }
inflate_buf += pngp->pass.size; png_reverse_filter_adam7_process(data, ihdr, inflate_buf, pngp);
pngp->stream.total_out -= pngp->pass.size;
deinterlace_pass(data,
ihdr, pngp->data, pngp->pass.width, pngp->pass.height, &passes[pngp->pass.pos]);
free(pngp->data);
pngp->pass.width = 0;
pngp->pass.height = 0;
pngp->pass.size = 0;
pngp->adam7_pass_initialized = false;
} }
return 0; return 0;