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| 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 HuffmanTree* tree, size_t* storage_ix, uint8_t* storage) { |
| 17 const size_t alphabet_size = self->alphabet_size_; |
| 18 const size_t table_size = histograms_size * alphabet_size; |
| 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 * alphabet_size; |
| 27 BuildAndStoreHuffmanTree(&histograms[i].data_[0], alphabet_size, tree, |
| 28 &self->depths_[ix], &self->bits_[ix], storage_ix, storage); |
| 29 } |
| 30 } |
| 31 } |
| 32 |
| 33 #undef HistogramType |
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