block_encoder_inc.h (1137B)
1 /* NOLINT(build/header_guard) */ 2 /* Copyright 2014 Google Inc. All Rights Reserved. 3 4 Distributed under MIT license. 5 See file LICENSE for detail or copy at https://opensource.org/licenses/MIT 6 */ 7 8 /* template parameters: FN */ 9 10 #define HistogramType FN(Histogram) 11 12 /* Creates entropy codes for all block types and stores them to the bit 13 stream. */ 14 static void FN(BuildAndStoreEntropyCodes)(MemoryManager* m, BlockEncoder* self, 15 const HistogramType* histograms, const size_t histograms_size, 16 const size_t alphabet_size, HuffmanTree* tree, 17 size_t* storage_ix, uint8_t* storage) { 18 const size_t table_size = histograms_size * self->histogram_length_; 19 self->depths_ = BROTLI_ALLOC(m, uint8_t, table_size); 20 self->bits_ = BROTLI_ALLOC(m, uint16_t, table_size); 21 if (BROTLI_IS_OOM(m)) return; 22 23 { 24 size_t i; 25 for (i = 0; i < histograms_size; ++i) { 26 size_t ix = i * self->histogram_length_; 27 BuildAndStoreHuffmanTree(&histograms[i].data_[0], self->histogram_length_, 28 alphabet_size, tree, &self->depths_[ix], &self->bits_[ix], 29 storage_ix, storage); 30 } 31 } 32 } 33 34 #undef HistogramType