diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/format/image/png.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/src/format/image/png.c b/src/format/image/png.c index fc3d84a..ef30dcd 100644 --- a/src/format/image/png.c +++ b/src/format/image/png.c @@ -129,16 +129,23 @@ ff_result ff_png_data_handler(uint8_t *buf, size_t len, ff_png_ctx *ctx) { ff_dprintf("png: IDAT chunk received (len=%zu)\n", len); - // For now, compression handling is not implemented - // and instead will assume data is uncompressed + // Update: Now I got tinf integrated, I can actually implement this - ff_dprintf("png: IDAT handler WIP - data is assumed uncompressed\n"); - ff_dprintf("png: IDAT handler WIP - expect undefined behavior\n"); + uint8_t *uncompressed_data = NULL; + + // Getting the size is weird cause it could the sample count + // could be different based on color type and bit depth + // TODO: Calculate properly + size_t uncompressed_size = ctx->width * ctx->height; // WIP based size + + uncompressed_data = malloc(uncompressed_size); - // We will need to loop over all the scanlines and apply filters - // But im too lazy to do that right now - // TODO implement + if (!uncompressed_data) { + ff_dprintf("png: failed to allocate memory for uncompressed data\n"); + return FF_RESULT_ERROR_MEMORY_ALLOCATION; + } + tinf_uncompress(uncompressed_data, uncompressed_size, buf, len); return FF_RESULT_WARN_NO_IMPL; } |