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rpng_process_image - cleanup resources if we fail

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This commit is contained in:
twinaphex 2016-05-20 21:05:27 +02:00
parent fec5aca60b
commit 45cbe06401
1 changed files with 17 additions and 15 deletions
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32
libretro-common/formats/png/rpng.c
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@ -733,8 +733,6 @@ end:
return 1;
error:
process->stream_backend->stream_free(process->stream);
false_end:
process->inflate_initialized = false;
return -1;
@ -774,7 +772,7 @@ static struct rpng_process *rpng_process_init(rpng_t *rpng,
struct rpng_process *process = (struct rpng_process*)calloc(1, sizeof(*process));
if (!process)
goto error;
return NULL;
process->stream_backend = file_archive_get_default_file_backend();
@ -786,14 +784,14 @@ static struct rpng_process *rpng_process_init(rpng_t *rpng,
process->stream = process->stream_backend->stream_new();
if (!process->stream)
goto error;
return NULL;
if (!process->stream_backend->stream_decompress_init(process->stream))
goto error;
return NULL;
inflate_buf = (uint8_t*)malloc(process->inflate_buf_size);
if (!inflate_buf)
goto error;
return NULL;
process->inflate_buf = inflate_buf;
process->stream_backend->stream_set(
@ -804,13 +802,6 @@ static struct rpng_process *rpng_process_init(rpng_t *rpng,
process->inflate_buf);
return process;
error:
if (process->stream)
process->stream_backend->stream_free(process->stream);
if (process)
free(process);
return NULL;
}
static bool read_chunk_header(uint8_t *buf, struct png_chunk *chunk)
@ -959,7 +950,7 @@ int rpng_process_image(rpng_t *rpng,
rpng, data, width, height);
if (!process)
return IMAGE_PROCESS_ERROR;
goto error;
rpng->process = process;
return 0;
@ -969,11 +960,22 @@ int rpng_process_image(rpng_t *rpng,
{
if (rpng_load_image_argb_process_inflate_init(rpng, data,
width, height) == -1)
return IMAGE_PROCESS_ERROR;
goto error;
return 0;
}
return png_reverse_filter_iterate(rpng, data);
error:
if (rpng->process)
{
if (rpng->process->inflate_buf)
free(rpng->process->inflate_buf);
if (rpng->process->stream)
rpng->process->stream_backend->stream_free(rpng->process->stream);
free(rpng->process);
}
return IMAGE_PROCESS_ERROR;
}
void rpng_free(rpng_t *rpng)