1 // Copyright 2016 The PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <cstdint> 6 #include <memory> 7 #include <vector> 8 9 #include "core/fxcodec/codec/codec_int.h" 10 #include "core/fxge/fx_dib.h" 11 12 CCodec_JpxModule g_module; 13 14 struct DecoderDeleter { 15 void operator()(CJPX_Decoder* decoder) { g_module.DestroyDecoder(decoder); } 16 }; 17 18 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { 19 std::unique_ptr<CJPX_Decoder, DecoderDeleter> decoder( 20 g_module.CreateDecoder(data, size, nullptr)); 21 if (!decoder) 22 return 0; 23 24 uint32_t width; 25 uint32_t height; 26 uint32_t components; 27 g_module.GetImageInfo(decoder.get(), &width, &height, &components); 28 29 FXDIB_Format format; 30 if (components == 1) { 31 format = FXDIB_8bppRgb; 32 } else if (components <= 3) { 33 format = FXDIB_Rgb; 34 } else if (components == 4) { 35 format = FXDIB_Rgb32; 36 } else { 37 width = (width * components + 2) / 3; 38 format = FXDIB_Rgb; 39 } 40 41 std::unique_ptr<CFX_DIBitmap> bitmap(new CFX_DIBitmap); 42 if (!bitmap->Create(width, height, format)) 43 return 0; 44 45 std::vector<uint8_t> output_offsets(components); 46 for (uint32_t i = 0; i < components; ++i) 47 output_offsets[i] = i; 48 49 g_module.Decode(decoder.get(), bitmap->GetBuffer(), bitmap->GetPitch(), 50 output_offsets); 51 return 0; 52 } 53
