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authorDan Sinclair <dsinclair@chromium.org>2017-05-25 14:04:59 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-05-25 18:17:31 +0000
commit5acacd361b15b82a8b30cdd5cb92abb8a2104ecf (patch)
treef602c78b802f67f41ea2099f8c7051a324060162 /core/fpdfapi/page/cpdf_function.h
parente0e2cd4f8a5634f2878f9b3bf3ce321ffd53a980 (diff)
downloadpdfium-5acacd361b15b82a8b30cdd5cb92abb8a2104ecf.tar.xz
Break apart the pageint.h file.
This CL separates pageint.h and the supporting cpp files into indivudal class files. Change-Id: Idcadce41976a8cd5f0d916e6a5ebbc283fd36527 Reviewed-on: https://pdfium-review.googlesource.com/5930 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fpdfapi/page/cpdf_function.h')
-rw-r--r--core/fpdfapi/page/cpdf_function.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/core/fpdfapi/page/cpdf_function.h b/core/fpdfapi/page/cpdf_function.h
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+++ b/core/fpdfapi/page/cpdf_function.h
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+// Copyright 2017 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_FUNCTION_H_
+#define CORE_FPDFAPI_PAGE_CPDF_FUNCTION_H_
+
+#include <memory>
+
+class CPDF_ExpIntFunc;
+class CPDF_Object;
+class CPDF_SampledFunc;
+class CPDF_StitchFunc;
+
+class CPDF_Function {
+ public:
+ enum class Type {
+ kTypeInvalid = -1,
+ kType0Sampled = 0,
+ kType2ExpotentialInterpolation = 2,
+ kType3Stitching = 3,
+ kType4PostScript = 4,
+ };
+
+ static std::unique_ptr<CPDF_Function> Load(CPDF_Object* pFuncObj);
+ static Type IntegerToFunctionType(int iType);
+
+ virtual ~CPDF_Function();
+
+ bool Call(float* inputs,
+ uint32_t ninputs,
+ float* results,
+ int* nresults) const;
+ uint32_t CountInputs() const { return m_nInputs; }
+ uint32_t CountOutputs() const { return m_nOutputs; }
+ float GetDomain(int i) const { return m_pDomains[i]; }
+ float GetRange(int i) const { return m_pRanges[i]; }
+ float Interpolate(float x,
+ float xmin,
+ float xmax,
+ float ymin,
+ float ymax) const;
+
+ const CPDF_SampledFunc* ToSampledFunc() const;
+ const CPDF_ExpIntFunc* ToExpIntFunc() const;
+ const CPDF_StitchFunc* ToStitchFunc() const;
+
+ protected:
+ explicit CPDF_Function(Type type);
+
+ bool Init(CPDF_Object* pObj);
+ virtual bool v_Init(CPDF_Object* pObj) = 0;
+ virtual bool v_Call(float* inputs, float* results) const = 0;
+
+ uint32_t m_nInputs;
+ uint32_t m_nOutputs;
+ float* m_pDomains;
+ float* m_pRanges;
+ const Type m_Type;
+};
+
+#endif // CORE_FPDFAPI_PAGE_CPDF_FUNCTION_H_