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| 1 // Copyright 2016 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 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #ifndef CORE_FPDFAPI_FPDF_PAGE_CPDF_MESHSTREAM_H_ | |
| 8 #define CORE_FPDFAPI_FPDF_PAGE_CPDF_MESHSTREAM_H_ | |
| 9 | |
| 10 #include <memory> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "core/fpdfapi/fpdf_page/cpdf_shadingpattern.h" | |
| 14 #include "core/fpdfapi/fpdf_parser/cpdf_stream_acc.h" | |
| 15 #include "core/fxcrt/fx_basic.h" | |
| 16 #include "core/fxcrt/fx_system.h" | |
| 17 | |
| 18 struct CPDF_MeshVertex { | |
| 19 FX_FLOAT x; | |
| 20 FX_FLOAT y; | |
| 21 FX_FLOAT r; | |
| 22 FX_FLOAT g; | |
| 23 FX_FLOAT b; | |
| 24 }; | |
| 25 | |
| 26 class CFX_Matrix; | |
| 27 class CPDF_ColorSpace; | |
| 28 class CPDF_Function; | |
| 29 class CPDF_Stream; | |
| 30 | |
| 31 class CPDF_MeshStream { | |
| 32 public: | |
| 33 CPDF_MeshStream(ShadingType type, | |
| 34 const std::vector<std::unique_ptr<CPDF_Function>>& funcs, | |
| 35 CPDF_Stream* pShadingStream, | |
| 36 CPDF_ColorSpace* pCS); | |
| 37 | |
| 38 bool Load(); | |
| 39 | |
| 40 uint32_t GetFlag(); | |
| 41 void GetCoords(FX_FLOAT& x, FX_FLOAT& y); | |
| 42 void GetColor(FX_FLOAT& r, FX_FLOAT& g, FX_FLOAT& b); | |
| 43 | |
| 44 uint32_t GetVertex(CPDF_MeshVertex& vertex, CFX_Matrix* pObject2Bitmap); | |
| 45 FX_BOOL GetVertexRow(CPDF_MeshVertex* vertex, | |
| 46 int count, | |
| 47 CFX_Matrix* pObject2Bitmap); | |
| 48 | |
| 49 CFX_BitStream* BitStream() { return &m_BitStream; } | |
| 50 uint32_t ComponentBits() const { return m_nComponentBits; } | |
| 51 uint32_t Components() const { return m_nComponents; } | |
| 52 | |
| 53 private: | |
| 54 static const uint32_t kMaxComponents = 8; | |
| 55 | |
| 56 const ShadingType m_type; | |
| 57 const std::vector<std::unique_ptr<CPDF_Function>>& m_funcs; | |
| 58 CPDF_Stream* const m_pShadingStream; | |
| 59 CPDF_ColorSpace* const m_pCS; | |
| 60 uint32_t m_nCoordBits; | |
| 61 uint32_t m_nComponentBits; | |
| 62 uint32_t m_nFlagBits; | |
| 63 uint32_t m_nComponents; | |
| 64 uint32_t m_CoordMax; | |
| 65 uint32_t m_ComponentMax; | |
| 66 FX_FLOAT m_xmin; | |
| 67 FX_FLOAT m_xmax; | |
| 68 FX_FLOAT m_ymin; | |
| 69 FX_FLOAT m_ymax; | |
| 70 FX_FLOAT m_ColorMin[kMaxComponents]; | |
| 71 FX_FLOAT m_ColorMax[kMaxComponents]; | |
| 72 CPDF_StreamAcc m_Stream; | |
| 73 CFX_BitStream m_BitStream; | |
| 74 }; | |
| 75 | |
| 76 #endif // CORE_FPDFAPI_FPDF_PAGE_CPDF_MESHSTREAM_H_ | |
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