529 int TryReconstruction(ImageChunk* chunk, unsigned char* out) {  in TryReconstruction()  argument
534           chunk->level, chunk->method, chunk->windowBits,  in TryReconstruction()
535           chunk->memLevel, chunk->strategy);  in TryReconstruction()
542   strm.avail_in = chunk->len;  in TryReconstruction()
543   strm.next_in = chunk->data;  in TryReconstruction()
545   ret = deflateInit2(&strm, chunk->level, chunk->method, chunk->windowBits,  in TryReconstruction()
546                      chunk->memLevel, chunk->strategy);  in TryReconstruction()
553     if (memcmp(out, chunk->deflate_data+p, have) != 0) {  in TryReconstruction()
561   if (p != chunk->deflate_len) {  in TryReconstruction()
574 int ReconstructDeflateChunk(ImageChunk* chunk) {  in ReconstructDeflateChunk()  argument
575   if (chunk->type != CHUNK_DEFLATE) {  in ReconstructDeflateChunk()
585   for (chunk->level = 6; chunk->level <= 9; chunk->level += 3) {  in ReconstructDeflateChunk()
586     chunk->windowBits = -15;  // 32kb window; negative to indicate a raw stream.  in ReconstructDeflateChunk()
587     chunk->memLevel = 8;      // the default value.  in ReconstructDeflateChunk()
588     chunk->method = Z_DEFLATED;  in ReconstructDeflateChunk()
589     chunk->strategy = Z_DEFAULT_STRATEGY;  in ReconstructDeflateChunk()
591     if (TryReconstruction(chunk, out) == 0) {  in ReconstructDeflateChunk()