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(RPNG) More modifications

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This commit is contained in:
twinaphex 2015-03-13 18:54:19 +01:00
parent ccb106580e
commit 1ba1ee55b8
1 changed files with 49 additions and 33 deletions
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82
libretro-common/formats/png/rpng_decode_common.h
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@ -431,42 +431,53 @@ static int png_reverse_filter_adam7(uint32_t *data,
const uint32_t *palette)
{
int ret = 0;
bool to_cont = pngp->pass.pos < ARRAY_SIZE(passes);
for (; pngp->pass.pos < ARRAY_SIZE(passes); pngp->pass.pos++)
if (!to_cont)
{
int ret = png_reverse_filter_init(ihdr, pngp->inflate_buf, pngp, palette);
if (ret == 1)
continue;
if (ret == -1)
{
ret = -1;
goto end;
}
if (!png_reverse_filter(pngp->data,
&pngp->ihdr, pngp->inflate_buf, pngp, palette))
{
free(pngp->data);
ret = -1;
goto end;
}
pngp->inflate_buf += pngp->pass.size;
pngp->restore_buf_size += 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;
ret = 1;
goto end;
}
ret = png_reverse_filter_init(ihdr, pngp->inflate_buf, pngp, palette);
if (ret == 1)
{
ret = 0;
goto cont;
}
if (ret == -1)
{
ret = -1;
goto end;
}
if (!png_reverse_filter(pngp->data,
&pngp->ihdr, pngp->inflate_buf, pngp, palette))
{
free(pngp->data);
ret = -1;
goto end;
}
pngp->inflate_buf += pngp->pass.size;
pngp->restore_buf_size += 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;
cont:
pngp->pass.pos++;
return 0;
end:
pngp->inflate_buf -= pngp->restore_buf_size;
@ -478,8 +489,13 @@ static bool png_reverse_filter_loop(struct rpng_t *rpng,
{
if (rpng->ihdr.interlace == 1)
{
int ret = png_reverse_filter_adam7(*data,
int ret = 0;
do
{
ret = png_reverse_filter_adam7(*data,
&rpng->ihdr, &rpng->process, rpng->palette);
}while(ret == 0);
if (ret == -1)
return false;
}