- /* Round the chunk count to divide evenly on DXT block edges */
- corrected_chunk_count = av_clip(ctx->opt_chunk_count, 1, HAP_MAX_CHUNKS);
- while ((ctx->tex_size / (64 / ratio)) % corrected_chunk_count != 0) {
- corrected_chunk_count--;
+ switch (ctx->opt_compressor) {
+ case HAP_COMP_NONE:
+ /* No benefit chunking uncompressed data */
+ corrected_chunk_count = 1;
+
+ ctx->max_snappy = ctx->tex_size;
+ ctx->tex_buf = NULL;
+ break;
+ case HAP_COMP_SNAPPY:
+ /* Round the chunk count to divide evenly on DXT block edges */
+ corrected_chunk_count = av_clip(ctx->opt_chunk_count, 1, HAP_MAX_CHUNKS);
+ while ((ctx->tex_size / (64 / ratio)) % corrected_chunk_count != 0) {
+ corrected_chunk_count--;
+ }
+
+ ctx->max_snappy = snappy_max_compressed_length(ctx->tex_size / corrected_chunk_count);
+ ctx->tex_buf = av_malloc(ctx->tex_size);
+ if (!ctx->tex_buf) {
+ return AVERROR(ENOMEM);
+ }
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "Invalid compresor %02X\n", ctx->opt_compressor);
+ return AVERROR_INVALIDDATA;