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(RPNG) Use Z_NO_FLUSH as second param to inflate and put it in a while loop

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twinaphex 2015-03-14 21:16:33 +01:00
parent 990253ac7f
commit 431cf5e1f3
1 changed files with 13 additions and 4 deletions
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17
libretro-common/formats/png/rpng_decode.c
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@ -580,6 +580,7 @@ int png_reverse_filter_iterate(struct rpng_t *rpng,
bool rpng_load_image_argb_process_init(struct rpng_t *rpng,
uint32_t **data, unsigned *width, unsigned *height)
{
int zstatus;
rpng->process.inflate_buf_size = 0;
rpng->process.inflate_buf = NULL;
@ -600,11 +601,19 @@ bool rpng_load_image_argb_process_init(struct rpng_t *rpng,
rpng->process.stream.avail_out = rpng->process.inflate_buf_size;
rpng->process.stream.next_out = rpng->process.inflate_buf;
if (inflate(&rpng->process.stream, Z_FINISH) != Z_STREAM_END)
do
{
inflateEnd(&rpng->process.stream);
return false;
}
zstatus = inflate(&rpng->process.stream, Z_NO_FLUSH);
if (zstatus == Z_STREAM_END)
break;
if (zstatus != Z_OK && zstatus != Z_BUF_ERROR)
{
inflateEnd(&rpng->process.stream);
return false;
}
} while(rpng->process.stream.avail_in > 0
&& rpng->process.stream.avail_out > 0);
inflateEnd(&rpng->process.stream);
*width = rpng->ihdr.width;