1 files changed, 76 insertions, 0 deletions
diff --git a/core/fpdfapi/page/cpdf_meshstream.h b/core/fpdfapi/page/cpdf_meshstream.h
new file mode 100644
index 0000000000..a2ac9ae868
--- /dev/null
+++ b/core/fpdfapi/page/cpdf_meshstream.h
@@ -0,0 +1,76 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FPDFAPI_PAGE_CPDF_MESHSTREAM_H_
+#define CORE_FPDFAPI_PAGE_CPDF_MESHSTREAM_H_
+
+#include <memory>
+#include <vector>
+
+#include "core/fpdfapi/fpdf_parser/cpdf_stream_acc.h"
+#include "core/fpdfapi/page/cpdf_shadingpattern.h"
+#include "core/fxcrt/fx_basic.h"
+#include "core/fxcrt/fx_system.h"
+
+struct CPDF_MeshVertex {
+  FX_FLOAT x;
+  FX_FLOAT y;
+  FX_FLOAT r;
+  FX_FLOAT g;
+  FX_FLOAT b;
+};
+
+class CFX_Matrix;
+class CPDF_ColorSpace;
+class CPDF_Function;
+class CPDF_Stream;
+
+class CPDF_MeshStream {
+ public:
+  CPDF_MeshStream(ShadingType type,
+                  const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
+                  CPDF_Stream* pShadingStream,
+                  CPDF_ColorSpace* pCS);
+
+  bool Load();
+
+  uint32_t GetFlag();
+  void GetCoords(FX_FLOAT& x, FX_FLOAT& y);
+  void GetColor(FX_FLOAT& r, FX_FLOAT& g, FX_FLOAT& b);
+
+  uint32_t GetVertex(CPDF_MeshVertex& vertex, CFX_Matrix* pObject2Bitmap);
+  FX_BOOL GetVertexRow(CPDF_MeshVertex* vertex,
+                       int count,
+                       CFX_Matrix* pObject2Bitmap);
+
+  CFX_BitStream* BitStream() { return &m_BitStream; }
+  uint32_t ComponentBits() const { return m_nComponentBits; }
+  uint32_t Components() const { return m_nComponents; }
+
+ private:
+  static const uint32_t kMaxComponents = 8;
+
+  const ShadingType m_type;
+  const std::vector<std::unique_ptr<CPDF_Function>>& m_funcs;
+  CPDF_Stream* const m_pShadingStream;
+  CPDF_ColorSpace* const m_pCS;
+  uint32_t m_nCoordBits;
+  uint32_t m_nComponentBits;
+  uint32_t m_nFlagBits;
+  uint32_t m_nComponents;
+  uint32_t m_CoordMax;
+  uint32_t m_ComponentMax;
+  FX_FLOAT m_xmin;
+  FX_FLOAT m_xmax;
+  FX_FLOAT m_ymin;
+  FX_FLOAT m_ymax;
+  FX_FLOAT m_ColorMin[kMaxComponents];
+  FX_FLOAT m_ColorMax[kMaxComponents];
+  CPDF_StreamAcc m_Stream;
+  CFX_BitStream m_BitStream;
+};
+
+#endif  // CORE_FPDFAPI_PAGE_CPDF_MESHSTREAM_H_