1 /* 2 * Copyright 2017 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 8 #ifndef SkStubHeifDecoderAPI_DEFINED 9 #define SkStubHeifDecoderAPI_DEFINED 10 11 // This stub implementation of HeifDecoderAPI.h lets us compile SkHeifCodec.cpp 12 // even when libheif is not available. It, of course, does nothing and fails to decode. 13 14 #include <memory> 15 #include <stddef.h> 16 #include <stdint.h> 17 18 enum HeifColorFormat { 19 kHeifColorFormat_RGB565, 20 kHeifColorFormat_RGBA_8888, 21 kHeifColorFormat_BGRA_8888, 22 }; 23 24 struct HeifStream { 25 virtual ~HeifStream() {} 26 27 virtual size_t read(void*, size_t) = 0; 28 virtual bool rewind() = 0; 29 virtual bool seek(size_t) = 0; 30 virtual bool hasLength() const = 0; 31 virtual size_t getLength() const = 0; 32 }; 33 34 struct HeifFrameInfo { 35 int mRotationAngle; 36 int mWidth; 37 int mHeight; 38 int mBytesPerPixel; 39 40 size_t mIccSize; 41 std::unique_ptr<char[]> mIccData; 42 }; 43 44 struct HeifDecoder { 45 bool init(HeifStream* stream, HeifFrameInfo*) { 46 delete stream; 47 return false; 48 } 49 50 bool decode(HeifFrameInfo*) { 51 return false; 52 } 53 54 bool setOutputColor(HeifColorFormat) { 55 return false; 56 } 57 58 bool getScanline(uint8_t*) { 59 return false; 60 } 61 62 int skipScanlines(int) { 63 return 0; 64 } 65 }; 66 67 static inline HeifDecoder* createHeifDecoder() { return new HeifDecoder; } 68 69 #endif//SkStubHeifDecoderAPI_DEFINED 70
