1 /* 2 * Copyright 2016 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 #ifndef CodecPriv_DEFINED 8 #define CodecPriv_DEFINED 9 10 #include "SkBitmap.h" 11 #include "SkCodec.h" 12 #include "SkData.h" 13 14 inline bool decode_memory(const void* mem, size_t size, SkBitmap* bm) { 15 std::unique_ptr<SkCodec> codec(SkCodec::NewFromData(SkData::MakeWithoutCopy(mem, size))); 16 if (!codec) { 17 return false; 18 } 19 20 // Construct a color table for the decode if necessary 21 sk_sp<SkColorTable> colorTable(nullptr); 22 SkPMColor* colorPtr = nullptr; 23 int* colorCountPtr = nullptr; 24 int maxColors = 256; 25 if (kIndex_8_SkColorType == codec->getInfo().colorType()) { 26 SkPMColor colors[256]; 27 colorTable.reset(new SkColorTable(colors, maxColors)); 28 colorPtr = const_cast<SkPMColor*>(colorTable->readColors()); 29 colorCountPtr = &maxColors; 30 } 31 32 bm->allocPixels(codec->getInfo(), nullptr, colorTable.get()); 33 const SkCodec::Result result = codec->getPixels(codec->getInfo(), bm->getPixels(), 34 bm->rowBytes(), nullptr, colorPtr, colorCountPtr); 35 return result == SkCodec::kSuccess || result == SkCodec::kIncompleteInput; 36 } 37 #endif // CodecPriv_DEFINED 38
