diff options
47 files changed, 1397 insertions, 1190 deletions
@@ -483,16 +483,24 @@ static_library("fpdfapi") { "core/fpdfapi/page/cpdf_contentparser.cpp", "core/fpdfapi/page/cpdf_contentparser.h", "core/fpdfapi/page/cpdf_countedobject.h", + "core/fpdfapi/page/cpdf_devicecs.cpp", + "core/fpdfapi/page/cpdf_devicecs.h", "core/fpdfapi/page/cpdf_docpagedata.cpp", "core/fpdfapi/page/cpdf_docpagedata.h", + "core/fpdfapi/page/cpdf_expintfunc.cpp", + "core/fpdfapi/page/cpdf_expintfunc.h", "core/fpdfapi/page/cpdf_form.cpp", "core/fpdfapi/page/cpdf_form.h", "core/fpdfapi/page/cpdf_formobject.cpp", "core/fpdfapi/page/cpdf_formobject.h", + "core/fpdfapi/page/cpdf_function.cpp", + "core/fpdfapi/page/cpdf_function.h", "core/fpdfapi/page/cpdf_generalstate.cpp", "core/fpdfapi/page/cpdf_generalstate.h", "core/fpdfapi/page/cpdf_graphicstates.cpp", "core/fpdfapi/page/cpdf_graphicstates.h", + "core/fpdfapi/page/cpdf_iccprofile.cpp", + "core/fpdfapi/page/cpdf_iccprofile.h", "core/fpdfapi/page/cpdf_image.cpp", "core/fpdfapi/page/cpdf_image.h", "core/fpdfapi/page/cpdf_imageobject.cpp", @@ -515,10 +523,20 @@ static_library("fpdfapi") { "core/fpdfapi/page/cpdf_pathobject.h", "core/fpdfapi/page/cpdf_pattern.cpp", "core/fpdfapi/page/cpdf_pattern.h", + "core/fpdfapi/page/cpdf_patterncs.cpp", + "core/fpdfapi/page/cpdf_patterncs.h", + "core/fpdfapi/page/cpdf_psengine.cpp", + "core/fpdfapi/page/cpdf_psengine.h", + "core/fpdfapi/page/cpdf_psfunc.cpp", + "core/fpdfapi/page/cpdf_psfunc.h", + "core/fpdfapi/page/cpdf_sampledfunc.cpp", + "core/fpdfapi/page/cpdf_sampledfunc.h", "core/fpdfapi/page/cpdf_shadingobject.cpp", "core/fpdfapi/page/cpdf_shadingobject.h", "core/fpdfapi/page/cpdf_shadingpattern.cpp", "core/fpdfapi/page/cpdf_shadingpattern.h", + "core/fpdfapi/page/cpdf_stitchfunc.cpp", + "core/fpdfapi/page/cpdf_stitchfunc.h", "core/fpdfapi/page/cpdf_streamcontentparser.cpp", "core/fpdfapi/page/cpdf_streamcontentparser.h", "core/fpdfapi/page/cpdf_streamparser.cpp", @@ -529,9 +547,6 @@ static_library("fpdfapi") { "core/fpdfapi/page/cpdf_textstate.h", "core/fpdfapi/page/cpdf_tilingpattern.cpp", "core/fpdfapi/page/cpdf_tilingpattern.h", - "core/fpdfapi/page/fpdf_page_colors.cpp", - "core/fpdfapi/page/fpdf_page_func.cpp", - "core/fpdfapi/page/pageint.h", "core/fpdfapi/parser/cfdf_document.cpp", "core/fpdfapi/parser/cfdf_document.h", "core/fpdfapi/parser/cpdf_array.cpp", @@ -1930,7 +1945,7 @@ test("pdfium_unittests") { test("pdfium_embeddertests") { sources = [ - "core/fpdfapi/page/fpdf_page_func_embeddertest.cpp", + "core/fpdfapi/page/cpdf_stitchfunc_embeddertest.cpp", "core/fpdfapi/parser/cpdf_parser_embeddertest.cpp", "core/fpdfapi/parser/cpdf_security_handler_embeddertest.cpp", "core/fpdfapi/parser/fpdf_parser_decode_embeddertest.cpp", diff --git a/core/fpdfapi/font/cpdf_type3font.cpp b/core/fpdfapi/font/cpdf_type3font.cpp index b1ac99b0c3..b22551a26a 100644 --- a/core/fpdfapi/font/cpdf_type3font.cpp +++ b/core/fpdfapi/font/cpdf_type3font.cpp @@ -10,7 +10,6 @@ #include "core/fpdfapi/font/cpdf_type3char.h" #include "core/fpdfapi/page/cpdf_form.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_stream.h" diff --git a/core/fpdfapi/font/fpdf_font.cpp b/core/fpdfapi/font/fpdf_font.cpp index 4702947fd3..ebdad49da7 100644 --- a/core/fpdfapi/font/fpdf_font.cpp +++ b/core/fpdfapi/font/fpdf_font.cpp @@ -12,7 +12,6 @@ #include "core/fpdfapi/cpdf_modulemgr.h" #include "core/fpdfapi/page/cpdf_form.h" #include "core/fpdfapi/page/cpdf_pagemodule.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" diff --git a/core/fpdfapi/page/cpdf_allstates.cpp b/core/fpdfapi/page/cpdf_allstates.cpp index c67d3152c0..cedc8479bc 100644 --- a/core/fpdfapi/page/cpdf_allstates.cpp +++ b/core/fpdfapi/page/cpdf_allstates.cpp @@ -10,7 +10,6 @@ #include "core/fpdfapi/page/cpdf_pageobjectholder.h" #include "core/fpdfapi/page/cpdf_streamcontentparser.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fxge/cfx_graphstatedata.h" diff --git a/core/fpdfapi/page/cpdf_color.cpp b/core/fpdfapi/page/cpdf_color.cpp index 7e0675df15..e6665c83ac 100644 --- a/core/fpdfapi/page/cpdf_color.cpp +++ b/core/fpdfapi/page/cpdf_color.cpp @@ -7,7 +7,6 @@ #include "core/fpdfapi/page/cpdf_color.h" #include "core/fpdfapi/page/cpdf_docpagedata.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_document.h" #include "core/fxcrt/fx_system.h" diff --git a/core/fpdfapi/page/cpdf_colorspace.cpp b/core/fpdfapi/page/cpdf_colorspace.cpp index 111d45f17e..345180f368 100644 --- a/core/fpdfapi/page/cpdf_colorspace.cpp +++ b/core/fpdfapi/page/cpdf_colorspace.cpp @@ -12,8 +12,13 @@ #include <utility> #include "core/fpdfapi/cpdf_modulemgr.h" +#include "core/fpdfapi/page/cpdf_devicecs.h" #include "core/fpdfapi/page/cpdf_docpagedata.h" +#include "core/fpdfapi/page/cpdf_function.h" +#include "core/fpdfapi/page/cpdf_iccprofile.h" #include "core/fpdfapi/page/cpdf_pagemodule.h" +#include "core/fpdfapi/page/cpdf_pattern.h" +#include "core/fpdfapi/page/cpdf_patterncs.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" @@ -22,6 +27,7 @@ #include "core/fpdfapi/parser/cpdf_stream.h" #include "core/fpdfapi/parser/cpdf_stream_acc.h" #include "core/fpdfapi/parser/cpdf_string.h" +#include "core/fpdfdoc/cpdf_action.h" #include "core/fxcodec/fx_codec.h" #include "core/fxcrt/cfx_maybe_owned.h" #include "core/fxcrt/fx_memory.h" @@ -1128,57 +1134,6 @@ void CPDF_IndexedCS::EnableStdConversion(bool bEnabled) { m_pBaseCS->EnableStdConversion(bEnabled); } -CPDF_PatternCS::CPDF_PatternCS(CPDF_Document* pDoc) - : CPDF_ColorSpace(pDoc, PDFCS_PATTERN, 1), - m_pBaseCS(nullptr), - m_pCountedBaseCS(nullptr) {} - -CPDF_PatternCS::~CPDF_PatternCS() { - CPDF_ColorSpace* pCS = m_pCountedBaseCS ? m_pCountedBaseCS->get() : nullptr; - if (pCS && m_pDocument) { - auto* pPageData = m_pDocument->GetPageData(); - if (pPageData) - pPageData->ReleaseColorSpace(pCS->GetArray()); - } -} - -bool CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) { - CPDF_Object* pBaseCS = pArray->GetDirectObjectAt(1); - if (pBaseCS == m_pArray) - return false; - - CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); - m_pBaseCS = pDocPageData->GetColorSpace(pBaseCS, nullptr); - if (!m_pBaseCS) { - m_nComponents = 1; - return true; - } - - if (m_pBaseCS->GetFamily() == PDFCS_PATTERN) - return false; - - m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray()); - m_nComponents = m_pBaseCS->CountComponents() + 1; - return m_pBaseCS->CountComponents() <= MAX_PATTERN_COLORCOMPS; -} - -bool CPDF_PatternCS::GetRGB(float* pBuf, float* R, float* G, float* B) const { - if (m_pBaseCS) { - ASSERT(m_pBaseCS->GetFamily() != PDFCS_PATTERN); - PatternValue* pvalue = (PatternValue*)pBuf; - if (m_pBaseCS->GetRGB(pvalue->m_Comps, R, G, B)) - return true; - } - *R = 0.75f; - *G = 0.75f; - *B = 0.75f; - return false; -} - -CPDF_ColorSpace* CPDF_PatternCS::GetBaseCS() const { - return m_pBaseCS; -} - CPDF_SeparationCS::CPDF_SeparationCS(CPDF_Document* pDoc) : CPDF_ColorSpace(pDoc, PDFCS_SEPARATION, 1) {} diff --git a/core/fpdfapi/page/cpdf_colorspace.h b/core/fpdfapi/page/cpdf_colorspace.h index 9e1c4dea18..c8c2abf0da 100644 --- a/core/fpdfapi/page/cpdf_colorspace.h +++ b/core/fpdfapi/page/cpdf_colorspace.h @@ -9,6 +9,7 @@ #include <memory> +#include "core/fpdfapi/page/cpdf_pattern.h" #include "core/fxcrt/cfx_unowned_ptr.h" #include "core/fxcrt/fx_string.h" #include "core/fxcrt/fx_system.h" @@ -29,6 +30,14 @@ class CPDF_Array; class CPDF_Document; class CPDF_Object; +#define MAX_PATTERN_COLORCOMPS 16 +struct PatternValue { + CPDF_Pattern* m_pPattern; + CPDF_CountedPattern* m_pCountedPattern; + int m_nComps; + float m_Comps[MAX_PATTERN_COLORCOMPS]; +}; + class CPDF_ColorSpace { public: static CPDF_ColorSpace* GetStockCS(int Family); @@ -85,6 +94,7 @@ class CPDF_ColorSpace { CFX_UnownedPtr<CPDF_Array> m_pArray; uint32_t m_dwStdConversion; }; +using CPDF_CountedColorSpace = CPDF_CountedObject<CPDF_ColorSpace>; namespace std { diff --git a/core/fpdfapi/page/cpdf_countedobject.h b/core/fpdfapi/page/cpdf_countedobject.h index 64f936c52c..cb39616f2b 100644 --- a/core/fpdfapi/page/cpdf_countedobject.h +++ b/core/fpdfapi/page/cpdf_countedobject.h @@ -9,8 +9,6 @@ #include <memory> -#include "core/fpdfapi/page/cpdf_colorspace.h" -#include "core/fpdfapi/page/cpdf_pattern.h" #include "core/fxcrt/fx_system.h" template <class T> @@ -44,7 +42,5 @@ class CPDF_CountedObject { size_t m_nCount; T* m_pObj; }; -using CPDF_CountedColorSpace = CPDF_CountedObject<CPDF_ColorSpace>; -using CPDF_CountedPattern = CPDF_CountedObject<CPDF_Pattern>; #endif // CORE_FPDFAPI_PAGE_CPDF_COUNTEDOBJECT_H_ diff --git a/core/fpdfapi/page/fpdf_page_colors.cpp b/core/fpdfapi/page/cpdf_devicecs.cpp index 1526b75041..d410b1fb4a 100644 --- a/core/fpdfapi/page/fpdf_page_colors.cpp +++ b/core/fpdfapi/page/cpdf_devicecs.cpp @@ -4,7 +4,7 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#include "core/fpdfapi/page/pageint.h" +#include "core/fpdfapi/page/cpdf_devicecs.h" #include <limits.h> @@ -14,7 +14,6 @@ #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" -#include "core/fpdfapi/parser/cpdf_stream.h" #include "core/fpdfapi/parser/cpdf_stream_acc.h" #include "core/fpdfapi/parser/cpdf_string.h" #include "core/fxcodec/fx_codec.h" @@ -27,10 +26,6 @@ float NormalizeChannel(float fVal) { return pdfium::clamp(fVal, 0.0f, 1.0f); } -bool DetectSRGB(const uint8_t* pData, uint32_t dwSize) { - return dwSize == 3144 && memcmp(pData + 0x190, "sRGB IEC61966-2.1", 17) == 0; -} - } // namespace uint32_t ComponentsForFamily(int family) { @@ -218,24 +213,3 @@ void CPDF_DeviceCS::TranslateImageLine(uint8_t* pDestBuf, break; } } - -CPDF_IccProfile::CPDF_IccProfile(CPDF_Stream* pStream, - const uint8_t* pData, - uint32_t dwSize) - : m_bsRGB(DetectSRGB(pData, dwSize)), m_pStream(pStream) { - if (m_bsRGB) { - m_nSrcComponents = 3; - return; - } - uint32_t nSrcComps = 0; - auto* pIccModule = CPDF_ModuleMgr::Get()->GetIccModule(); - m_pTransform = pIccModule->CreateTransform_sRGB(pData, dwSize, nSrcComps); - if (m_pTransform) - m_nSrcComponents = nSrcComps; -} - -CPDF_IccProfile::~CPDF_IccProfile() { - if (m_pTransform) { - CPDF_ModuleMgr::Get()->GetIccModule()->DestroyTransform(m_pTransform); - } -} diff --git a/core/fpdfapi/page/cpdf_devicecs.h b/core/fpdfapi/page/cpdf_devicecs.h new file mode 100644 index 0000000000..177f240fbc --- /dev/null +++ b/core/fpdfapi/page/cpdf_devicecs.h @@ -0,0 +1,38 @@ +// 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_DEVICECS_H_ +#define CORE_FPDFAPI_PAGE_CPDF_DEVICECS_H_ + +#include "core/fpdfapi/page/cpdf_colorspace.h" + +class CPDF_DeviceCS : public CPDF_ColorSpace { + public: + explicit CPDF_DeviceCS(int family); + ~CPDF_DeviceCS() override; + + // CPDF_ColorSpace: + bool GetRGB(float* pBuf, float* R, float* G, float* B) const override; + bool SetRGB(float* pBuf, float R, float G, float B) const override; + bool v_GetCMYK(float* pBuf, + float* c, + float* m, + float* y, + float* k) const override; + bool v_SetCMYK(float* pBuf, + float c, + float m, + float y, + float k) const override; + void TranslateImageLine(uint8_t* pDestBuf, + const uint8_t* pSrcBuf, + int pixels, + int image_width, + int image_height, + bool bTransMask) const override; +}; + +#endif // CORE_FPDFAPI_PAGE_CPDF_DEVICECS_H_ diff --git a/core/fpdfapi/page/cpdf_devicecs_unittest.cpp b/core/fpdfapi/page/cpdf_devicecs_unittest.cpp index 22a961a1c1..a171d01f59 100644 --- a/core/fpdfapi/page/cpdf_devicecs_unittest.cpp +++ b/core/fpdfapi/page/cpdf_devicecs_unittest.cpp @@ -4,7 +4,7 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#include "core/fpdfapi/page/pageint.h" +#include "core/fpdfapi/page/cpdf_devicecs.h" #include "testing/gtest/include/gtest/gtest.h" TEST(CPDF_DeviceCSTest, GetRGBFromGray) { diff --git a/core/fpdfapi/page/cpdf_docpagedata.cpp b/core/fpdfapi/page/cpdf_docpagedata.cpp index 435b0f2eec..d8b89b318b 100644 --- a/core/fpdfapi/page/cpdf_docpagedata.cpp +++ b/core/fpdfapi/page/cpdf_docpagedata.cpp @@ -15,6 +15,7 @@ #include "core/fpdfapi/cpdf_modulemgr.h" #include "core/fpdfapi/font/cpdf_type1font.h" #include "core/fpdfapi/font/font_int.h" +#include "core/fpdfapi/page/cpdf_iccprofile.h" #include "core/fpdfapi/page/cpdf_image.h" #include "core/fpdfapi/page/cpdf_pagemodule.h" #include "core/fpdfapi/page/cpdf_pattern.h" diff --git a/core/fpdfapi/page/cpdf_docpagedata.h b/core/fpdfapi/page/cpdf_docpagedata.h index 32d220b756..0fda16911d 100644 --- a/core/fpdfapi/page/cpdf_docpagedata.h +++ b/core/fpdfapi/page/cpdf_docpagedata.h @@ -10,7 +10,7 @@ #include <map> #include <set> -#include "core/fpdfapi/page/cpdf_countedobject.h" +#include "core/fpdfapi/page/cpdf_colorspace.h" #include "core/fxcrt/cfx_unowned_ptr.h" #include "core/fxcrt/fx_coordinates.h" #include "core/fxcrt/fx_string.h" @@ -22,6 +22,7 @@ class CPDF_FontEncoding; class CPDF_IccProfile; class CPDF_Image; class CPDF_Object; +class CPDF_Pattern; class CPDF_Stream; class CPDF_StreamAcc; diff --git a/core/fpdfapi/page/cpdf_expintfunc.cpp b/core/fpdfapi/page/cpdf_expintfunc.cpp new file mode 100644 index 0000000000..5d1213131b --- /dev/null +++ b/core/fpdfapi/page/cpdf_expintfunc.cpp @@ -0,0 +1,60 @@ +// 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 + +#include "core/fpdfapi/page/cpdf_expintfunc.h" + +#include "core/fpdfapi/parser/cpdf_array.h" +#include "core/fpdfapi/parser/cpdf_dictionary.h" +#include "core/fxcrt/fx_memory.h" + +CPDF_ExpIntFunc::CPDF_ExpIntFunc() + : CPDF_Function(Type::kType2ExpotentialInterpolation), + m_pBeginValues(nullptr), + m_pEndValues(nullptr) {} + +CPDF_ExpIntFunc::~CPDF_ExpIntFunc() { + FX_Free(m_pBeginValues); + FX_Free(m_pEndValues); +} + +bool CPDF_ExpIntFunc::v_Init(CPDF_Object* pObj) { + CPDF_Dictionary* pDict = pObj->GetDict(); + if (!pDict) + return false; + + CPDF_Array* pArray0 = pDict->GetArrayFor("C0"); + if (m_nOutputs == 0) { + m_nOutputs = 1; + if (pArray0) + m_nOutputs = pArray0->GetCount(); + } + + CPDF_Array* pArray1 = pDict->GetArrayFor("C1"); + m_pBeginValues = FX_Alloc2D(float, m_nOutputs, 2); + m_pEndValues = FX_Alloc2D(float, m_nOutputs, 2); + for (uint32_t i = 0; i < m_nOutputs; i++) { + m_pBeginValues[i] = pArray0 ? pArray0->GetFloatAt(i) : 0.0f; + m_pEndValues[i] = pArray1 ? pArray1->GetFloatAt(i) : 1.0f; + } + + m_Exponent = pDict->GetFloatFor("N"); + m_nOrigOutputs = m_nOutputs; + if (m_nOutputs && m_nInputs > INT_MAX / m_nOutputs) + return false; + + m_nOutputs *= m_nInputs; + return true; +} + +bool CPDF_ExpIntFunc::v_Call(float* inputs, float* results) const { + for (uint32_t i = 0; i < m_nInputs; i++) + for (uint32_t j = 0; j < m_nOrigOutputs; j++) { + results[i * m_nOrigOutputs + j] = + m_pBeginValues[j] + FXSYS_pow(inputs[i], m_Exponent) * + (m_pEndValues[j] - m_pBeginValues[j]); + } + return true; +} diff --git a/core/fpdfapi/page/cpdf_expintfunc.h b/core/fpdfapi/page/cpdf_expintfunc.h new file mode 100644 index 0000000000..867d2fa265 --- /dev/null +++ b/core/fpdfapi/page/cpdf_expintfunc.h @@ -0,0 +1,27 @@ +// 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_EXPINTFUNC_H_ +#define CORE_FPDFAPI_PAGE_CPDF_EXPINTFUNC_H_ + +#include "core/fpdfapi/page/cpdf_function.h" + +class CPDF_ExpIntFunc : public CPDF_Function { + public: + CPDF_ExpIntFunc(); + ~CPDF_ExpIntFunc() override; + + // CPDF_Function + bool v_Init(CPDF_Object* pObj) override; + bool v_Call(float* inputs, float* results) const override; + + uint32_t m_nOrigOutputs; + float m_Exponent; + float* m_pBeginValues; + float* m_pEndValues; +}; + +#endif // CORE_FPDFAPI_PAGE_CPDF_EXPINTFUNC_H_ diff --git a/core/fpdfapi/page/cpdf_form.cpp b/core/fpdfapi/page/cpdf_form.cpp index 2245f934f6..c2170ac4e7 100644 --- a/core/fpdfapi/page/cpdf_form.cpp +++ b/core/fpdfapi/page/cpdf_form.cpp @@ -9,7 +9,6 @@ #include "core/fpdfapi/page/cpdf_contentparser.h" #include "core/fpdfapi/page/cpdf_pageobject.h" #include "core/fpdfapi/page/cpdf_pageobjectholder.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_stream.h" #include "third_party/base/ptr_util.h" diff --git a/core/fpdfapi/page/cpdf_function.cpp b/core/fpdfapi/page/cpdf_function.cpp new file mode 100644 index 0000000000..635c53a95f --- /dev/null +++ b/core/fpdfapi/page/cpdf_function.cpp @@ -0,0 +1,153 @@ +// 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 + +#include "core/fpdfapi/page/cpdf_function.h" + +#include "core/fpdfapi/page/cpdf_expintfunc.h" +#include "core/fpdfapi/page/cpdf_psfunc.h" +#include "core/fpdfapi/page/cpdf_sampledfunc.h" +#include "core/fpdfapi/page/cpdf_stitchfunc.h" +#include "core/fpdfapi/parser/cpdf_array.h" +#include "core/fpdfapi/parser/cpdf_dictionary.h" +#include "core/fpdfapi/parser/cpdf_stream.h" +#include "third_party/base/ptr_util.h" + +// static +std::unique_ptr<CPDF_Function> CPDF_Function::Load(CPDF_Object* pFuncObj) { + std::unique_ptr<CPDF_Function> pFunc; + if (!pFuncObj) + return pFunc; + + int iType = -1; + if (CPDF_Stream* pStream = pFuncObj->AsStream()) + iType = pStream->GetDict()->GetIntegerFor("FunctionType"); + else if (CPDF_Dictionary* pDict = pFuncObj->AsDictionary()) + iType = pDict->GetIntegerFor("FunctionType"); + + Type type = IntegerToFunctionType(iType); + if (type == Type::kType0Sampled) + pFunc = pdfium::MakeUnique<CPDF_SampledFunc>(); + else if (type == Type::kType2ExpotentialInterpolation) + pFunc = pdfium::MakeUnique<CPDF_ExpIntFunc>(); + else if (type == Type::kType3Stitching) + pFunc = pdfium::MakeUnique<CPDF_StitchFunc>(); + else if (type == Type::kType4PostScript) + pFunc = pdfium::MakeUnique<CPDF_PSFunc>(); + + if (!pFunc || !pFunc->Init(pFuncObj)) + return nullptr; + + return pFunc; +} + +// static +CPDF_Function::Type CPDF_Function::IntegerToFunctionType(int iType) { + switch (iType) { + case 0: + case 2: + case 3: + case 4: + return static_cast<Type>(iType); + default: + return Type::kTypeInvalid; + } +} + +CPDF_Function::CPDF_Function(Type type) + : m_pDomains(nullptr), m_pRanges(nullptr), m_Type(type) {} + +CPDF_Function::~CPDF_Function() { + FX_Free(m_pDomains); + FX_Free(m_pRanges); +} + +bool CPDF_Function::Init(CPDF_Object* pObj) { + CPDF_Stream* pStream = pObj->AsStream(); + CPDF_Dictionary* pDict = pStream ? pStream->GetDict() : pObj->AsDictionary(); + + CPDF_Array* pDomains = pDict->GetArrayFor("Domain"); + if (!pDomains) + return false; + + m_nInputs = pDomains->GetCount() / 2; + if (m_nInputs == 0) + return false; + + m_pDomains = FX_Alloc2D(float, m_nInputs, 2); + for (uint32_t i = 0; i < m_nInputs * 2; i++) { + m_pDomains[i] = pDomains->GetFloatAt(i); + } + CPDF_Array* pRanges = pDict->GetArrayFor("Range"); + m_nOutputs = 0; + if (pRanges) { + m_nOutputs = pRanges->GetCount() / 2; + m_pRanges = FX_Alloc2D(float, m_nOutputs, 2); + for (uint32_t i = 0; i < m_nOutputs * 2; i++) + m_pRanges[i] = pRanges->GetFloatAt(i); + } + uint32_t old_outputs = m_nOutputs; + if (!v_Init(pObj)) + return false; + if (m_pRanges && m_nOutputs > old_outputs) { + m_pRanges = FX_Realloc(float, m_pRanges, m_nOutputs * 2); + if (m_pRanges) { + memset(m_pRanges + (old_outputs * 2), 0, + sizeof(float) * (m_nOutputs - old_outputs) * 2); + } + } + return true; +} + +bool CPDF_Function::Call(float* inputs, + uint32_t ninputs, + float* results, + int* nresults) const { + if (m_nInputs != ninputs) + return false; + + *nresults = m_nOutputs; + for (uint32_t i = 0; i < m_nInputs; i++) { + inputs[i] = + pdfium::clamp(inputs[i], m_pDomains[i * 2], m_pDomains[i * 2 + 1]); + } + v_Call(inputs, results); + if (!m_pRanges) + return true; + + for (uint32_t i = 0; i < m_nOutputs; i++) { + results[i] = + pdfium::clamp(results[i], m_pRanges[i * 2], m_pRanges[i * 2 + 1]); + } + return true; +} + +// See PDF Reference 1.7, page 170. +float CPDF_Function::Interpolate(float x, + float xmin, + float xmax, + float ymin, + float ymax) const { + float divisor = xmax - xmin; + return ymin + (divisor ? (x - xmin) * (ymax - ymin) / divisor : 0); +} + +const CPDF_SampledFunc* CPDF_Function::ToSampledFunc() const { + return m_Type == Type::kType0Sampled + ? static_cast<const CPDF_SampledFunc*>(this) + : nullptr; +} + +const CPDF_ExpIntFunc* CPDF_Function::ToExpIntFunc() const { + return m_Type == Type::kType2ExpotentialInterpolation + ? static_cast<const CPDF_ExpIntFunc*>(this) + : nullptr; +} + +const CPDF_StitchFunc* CPDF_Function::ToStitchFunc() const { + return m_Type == Type::kType3Stitching + ? static_cast<const CPDF_StitchFunc*>(this) + : nullptr; +} diff --git a/core/fpdfapi/page/cpdf_function.h b/core/fpdfapi/page/cpdf_function.h new file mode 100644 index 0000000000..ff7cf847d2 --- /dev/null +++ b/core/fpdfapi/page/cpdf_function.h @@ -0,0 +1,64 @@ +// 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_ diff --git a/core/fpdfapi/page/cpdf_iccprofile.cpp b/core/fpdfapi/page/cpdf_iccprofile.cpp new file mode 100644 index 0000000000..afb505a7e6 --- /dev/null +++ b/core/fpdfapi/page/cpdf_iccprofile.cpp @@ -0,0 +1,40 @@ +// 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 + +#include "core/fpdfapi/page/cpdf_iccprofile.h" + +#include "core/fpdfapi/cpdf_modulemgr.h" +#include "core/fpdfapi/parser/cpdf_stream.h" +#include "core/fxcodec/codec/ccodec_iccmodule.h" + +namespace { + +bool DetectSRGB(const uint8_t* pData, uint32_t dwSize) { + return dwSize == 3144 && memcmp(pData + 0x190, "sRGB IEC61966-2.1", 17) == 0; +} + +} // namespace + +CPDF_IccProfile::CPDF_IccProfile(CPDF_Stream* pStream, + const uint8_t* pData, + uint32_t dwSize) + : m_bsRGB(DetectSRGB(pData, dwSize)), m_pStream(pStream) { + if (m_bsRGB) { + m_nSrcComponents = 3; + return; + } + + uint32_t nSrcComps = 0; + auto* pIccModule = CPDF_ModuleMgr::Get()->GetIccModule(); + m_pTransform = pIccModule->CreateTransform_sRGB(pData, dwSize, nSrcComps); + if (m_pTransform) + m_nSrcComponents = nSrcComps; +} + +CPDF_IccProfile::~CPDF_IccProfile() { + if (m_pTransform) + CPDF_ModuleMgr::Get()->GetIccModule()->DestroyTransform(m_pTransform); +} diff --git a/core/fpdfapi/page/cpdf_iccprofile.h b/core/fpdfapi/page/cpdf_iccprofile.h new file mode 100644 index 0000000000..05ac9bf1ba --- /dev/null +++ b/core/fpdfapi/page/cpdf_iccprofile.h @@ -0,0 +1,36 @@ +// 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_ICCPROFILE_H_ +#define CORE_FPDFAPI_PAGE_CPDF_ICCPROFILE_H_ + +#include "core/fxcrt/cfx_retain_ptr.h" + +class CPDF_Stream; + +class CPDF_IccProfile : public CFX_Retainable { + public: + template <typename T, typename... Args> + friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args); + + CPDF_Stream* GetStream() const { return m_pStream; } + bool IsValid() const { return IsSRGB() || IsSupported(); } + bool IsSRGB() const { return m_bsRGB; } + bool IsSupported() const { return !!m_pTransform; } + void* transform() { return m_pTransform; } + uint32_t GetComponents() const { return m_nSrcComponents; } + + private: + CPDF_IccProfile(CPDF_Stream* pStream, const uint8_t* pData, uint32_t dwSize); + ~CPDF_IccProfile() override; + + const bool m_bsRGB; + CPDF_Stream* const m_pStream; + void* m_pTransform = nullptr; + uint32_t m_nSrcComponents = 0; +}; + +#endif // CORE_FPDFAPI_PAGE_CPDF_ICCPROFILE_H_ diff --git a/core/fpdfapi/page/cpdf_meshstream.cpp b/core/fpdfapi/page/cpdf_meshstream.cpp index ac93513163..7a6228a25b 100644 --- a/core/fpdfapi/page/cpdf_meshstream.cpp +++ b/core/fpdfapi/page/cpdf_meshstream.cpp @@ -7,7 +7,7 @@ #include "core/fpdfapi/page/cpdf_meshstream.h" #include "core/fpdfapi/page/cpdf_colorspace.h" -#include "core/fpdfapi/page/pageint.h" +#include "core/fpdfapi/page/cpdf_function.h" #include "core/fpdfapi/parser/cpdf_array.h" namespace { diff --git a/core/fpdfapi/page/cpdf_page.cpp b/core/fpdfapi/page/cpdf_page.cpp index d528d3da0b..2f0c83556c 100644 --- a/core/fpdfapi/page/cpdf_page.cpp +++ b/core/fpdfapi/page/cpdf_page.cpp @@ -12,7 +12,6 @@ #include "core/fpdfapi/cpdf_pagerendercontext.h" #include "core/fpdfapi/page/cpdf_contentparser.h" #include "core/fpdfapi/page/cpdf_pageobject.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_object.h" diff --git a/core/fpdfapi/page/cpdf_pagemodule.h b/core/fpdfapi/page/cpdf_pagemodule.h index 4aa19da2bb..49d2769f88 100644 --- a/core/fpdfapi/page/cpdf_pagemodule.h +++ b/core/fpdfapi/page/cpdf_pagemodule.h @@ -9,7 +9,8 @@ #include "core/fpdfapi/font/font_int.h" #include "core/fpdfapi/page/cpdf_colorspace.h" -#include "core/fpdfapi/page/pageint.h" +#include "core/fpdfapi/page/cpdf_devicecs.h" +#include "core/fpdfapi/page/cpdf_patterncs.h" class CPDF_Document; diff --git a/core/fpdfapi/page/cpdf_pageobjectholder.cpp b/core/fpdfapi/page/cpdf_pageobjectholder.cpp index 1d2b51e959..53dfd75d5d 100644 --- a/core/fpdfapi/page/cpdf_pageobjectholder.cpp +++ b/core/fpdfapi/page/cpdf_pageobjectholder.cpp @@ -10,7 +10,6 @@ #include "core/fpdfapi/page/cpdf_contentparser.h" #include "core/fpdfapi/page/cpdf_pageobject.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" CPDF_PageObjectHolder::CPDF_PageObjectHolder(CPDF_Document* pDoc, diff --git a/core/fpdfapi/page/cpdf_pageobjectlist.cpp b/core/fpdfapi/page/cpdf_pageobjectlist.cpp index 5c30fe9877..afd2c98536 100644 --- a/core/fpdfapi/page/cpdf_pageobjectlist.cpp +++ b/core/fpdfapi/page/cpdf_pageobjectlist.cpp @@ -6,7 +6,6 @@ #include "core/fpdfapi/page/cpdf_pageobjectlist.h" -#include "core/fpdfapi/page/pageint.h" #include "third_party/base/stl_util.h" CPDF_PageObject* CPDF_PageObjectList::GetPageObjectByIndex(int index) { diff --git a/core/fpdfapi/page/cpdf_pattern.h b/core/fpdfapi/page/cpdf_pattern.h index dba301b922..504b5b0ffc 100644 --- a/core/fpdfapi/page/cpdf_pattern.h +++ b/core/fpdfapi/page/cpdf_pattern.h @@ -7,6 +7,7 @@ #ifndef CORE_FPDFAPI_PAGE_CPDF_PATTERN_H_ #define CORE_FPDFAPI_PAGE_CPDF_PATTERN_H_ +#include "core/fpdfapi/page/cpdf_countedobject.h" #include "core/fxcrt/cfx_unowned_ptr.h" #include "core/fxcrt/fx_coordinates.h" #include "core/fxcrt/fx_system.h" @@ -44,5 +45,6 @@ class CPDF_Pattern { CFX_Matrix m_Pattern2Form; const CFX_Matrix m_ParentMatrix; }; +using CPDF_CountedPattern = CPDF_CountedObject<CPDF_Pattern>; #endif // CORE_FPDFAPI_PAGE_CPDF_PATTERN_H_ diff --git a/core/fpdfapi/page/cpdf_patterncs.cpp b/core/fpdfapi/page/cpdf_patterncs.cpp new file mode 100644 index 0000000000..4951f61d54 --- /dev/null +++ b/core/fpdfapi/page/cpdf_patterncs.cpp @@ -0,0 +1,62 @@ +// Copyright 2014 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 + +#include "core/fpdfapi/page/cpdf_patterncs.h" + +#include "core/fpdfapi/page/cpdf_docpagedata.h" +#include "core/fpdfapi/parser/cpdf_array.h" +#include "core/fpdfapi/parser/cpdf_document.h" + +CPDF_PatternCS::CPDF_PatternCS(CPDF_Document* pDoc) + : CPDF_ColorSpace(pDoc, PDFCS_PATTERN, 1), + m_pBaseCS(nullptr), + m_pCountedBaseCS(nullptr) {} + +CPDF_PatternCS::~CPDF_PatternCS() { + CPDF_ColorSpace* pCS = m_pCountedBaseCS ? m_pCountedBaseCS->get() : nullptr; + if (pCS && m_pDocument) { + auto* pPageData = m_pDocument->GetPageData(); + if (pPageData) + pPageData->ReleaseColorSpace(pCS->GetArray()); + } +} + +bool CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) { + CPDF_Object* pBaseCS = pArray->GetDirectObjectAt(1); + if (pBaseCS == m_pArray) + return false; + + CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); + m_pBaseCS = pDocPageData->GetColorSpace(pBaseCS, nullptr); + if (!m_pBaseCS) { + m_nComponents = 1; + return true; + } + + if (m_pBaseCS->GetFamily() == PDFCS_PATTERN) + return false; + + m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray()); + m_nComponents = m_pBaseCS->CountComponents() + 1; + return m_pBaseCS->CountComponents() <= MAX_PATTERN_COLORCOMPS; +} + +bool CPDF_PatternCS::GetRGB(float* pBuf, float* R, float* G, float* B) const { + if (m_pBaseCS) { + ASSERT(m_pBaseCS->GetFamily() != PDFCS_PATTERN); + PatternValue* pvalue = (PatternValue*)pBuf; + if (m_pBaseCS->GetRGB(pvalue->m_Comps, R, G, B)) + return true; + } + *R = 0.75f; + *G = 0.75f; + *B = 0.75f; + return false; +} + +CPDF_ColorSpace* CPDF_PatternCS::GetBaseCS() const { + return m_pBaseCS; +} diff --git a/core/fpdfapi/page/cpdf_patterncs.h b/core/fpdfapi/page/cpdf_patterncs.h new file mode 100644 index 0000000000..d28fff19c9 --- /dev/null +++ b/core/fpdfapi/page/cpdf_patterncs.h @@ -0,0 +1,29 @@ +// 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_PATTERNCS_H_ +#define CORE_FPDFAPI_PAGE_CPDF_PATTERNCS_H_ + +#include "core/fpdfapi/page/cpdf_colorspace.h" + +class CPDF_Document; + +class CPDF_PatternCS : public CPDF_ColorSpace { + public: + explicit CPDF_PatternCS(CPDF_Document* pDoc); + ~CPDF_PatternCS() override; + + // CPDF_ColorSpace: + bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override; + bool GetRGB(float* pBuf, float* R, float* G, float* B) const override; + CPDF_ColorSpace* GetBaseCS() const override; + + private: + CPDF_ColorSpace* m_pBaseCS; + CPDF_CountedColorSpace* m_pCountedBaseCS; +}; + +#endif // CORE_FPDFAPI_PAGE_CPDF_PATTERNCS_H_ diff --git a/core/fpdfapi/page/cpdf_psengine.cpp b/core/fpdfapi/page/cpdf_psengine.cpp new file mode 100644 index 0000000000..658d73cda3 --- /dev/null +++ b/core/fpdfapi/page/cpdf_psengine.cpp @@ -0,0 +1,405 @@ +// 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 + +#include "core/fpdfapi/page/cpdf_psengine.h" + +#include <utility> + +#include "core/fpdfapi/parser/cpdf_simple_parser.h" +#include "core/fxcrt/fx_safe_types.h" +#include "core/fxcrt/fx_string.h" +#include "third_party/base/logging.h" +#include "third_party/base/ptr_util.h" + +namespace { + +struct PDF_PSOpName { + const char* name; + PDF_PSOP op; +}; + +const PDF_PSOpName kPsOpNames[] = { + {"add", PSOP_ADD}, {"sub", PSOP_SUB}, + {"mul", PSOP_MUL}, {"div", PSOP_DIV}, + {"idiv", PSOP_IDIV}, {"mod", PSOP_MOD}, + {"neg", PSOP_NEG}, {"abs", PSOP_ABS}, + {"ceiling", PSOP_CEILING}, {"floor", PSOP_FLOOR}, + {"round", PSOP_ROUND}, {"truncate", PSOP_TRUNCATE}, + {"sqrt", PSOP_SQRT}, {"sin", PSOP_SIN}, + {"cos", PSOP_COS}, {"atan", PSOP_ATAN}, + {"exp", PSOP_EXP}, {"ln", PSOP_LN}, + {"log", PSOP_LOG}, {"cvi", PSOP_CVI}, + {"cvr", PSOP_CVR}, {"eq", PSOP_EQ}, + {"ne", PSOP_NE}, {"gt", PSOP_GT}, + {"ge", PSOP_GE}, {"lt", PSOP_LT}, + {"le", PSOP_LE}, {"and", PSOP_AND}, + {"or", PSOP_OR}, {"xor", PSOP_XOR}, + {"not", PSOP_NOT}, {"bitshift", PSOP_BITSHIFT}, + {"true", PSOP_TRUE}, {"false", PSOP_FALSE}, + {"if", PSOP_IF}, {"ifelse", PSOP_IFELSE}, + {"pop", PSOP_POP}, {"exch", PSOP_EXCH}, + {"dup", PSOP_DUP}, {"copy", PSOP_COPY}, + {"index", PSOP_INDEX}, {"roll", PSOP_ROLL}}; + +} // namespace + +class CPDF_PSOP { + public: + explicit CPDF_PSOP(PDF_PSOP op) : m_op(op), m_value(0) { + ASSERT(m_op != PSOP_CONST); + ASSERT(m_op != PSOP_PROC); + } + explicit CPDF_PSOP(float value) : m_op(PSOP_CONST), m_value(value) {} + CPDF_PSOP() + : m_op(PSOP_PROC), + m_value(0), + m_proc(pdfium::MakeUnique<CPDF_PSProc>()) {} + + float GetFloatValue() const { + if (m_op == PSOP_CONST) + return m_value; + + NOTREACHED(); + return 0; + } + CPDF_PSProc* GetProc() const { + if (m_op == PSOP_PROC) + return m_proc.get(); + NOTREACHED(); + return nullptr; + } + + PDF_PSOP GetOp() const { return m_op; } + + private: + const PDF_PSOP m_op; + const float m_value; + std::unique_ptr<CPDF_PSProc> m_proc; +}; + +bool CPDF_PSEngine::Execute() { + return m_MainProc.Execute(this); +} + +CPDF_PSProc::CPDF_PSProc() {} +CPDF_PSProc::~CPDF_PSProc() {} + +bool CPDF_PSProc::Execute(CPDF_PSEngine* pEngine) { + for (size_t i = 0; i < m_Operators.size(); ++i) { + const PDF_PSOP op = m_Operators[i]->GetOp(); + if (op == PSOP_PROC) + continue; + + if (op == PSOP_CONST) { + pEngine->Push(m_Operators[i]->GetFloatValue()); + continue; + } + + if (op == PSOP_IF) { + if (i == 0 || m_Operators[i - 1]->GetOp() != PSOP_PROC) + return false; + + if (static_cast<int>(pEngine->Pop())) + m_Operators[i - 1]->GetProc()->Execute(pEngine); + } else if (op == PSOP_IFELSE) { + if (i < 2 || m_Operators[i - 1]->GetOp() != PSOP_PROC || + m_Operators[i - 2]->GetOp() != PSOP_PROC) { + return false; + } + size_t offset = static_cast<int>(pEngine->Pop()) ? 2 : 1; + m_Operators[i - offset]->GetProc()->Execute(pEngine); + } else { + pEngine->DoOperator(op); + } + } + return true; +} + +CPDF_PSEngine::CPDF_PSEngine() : m_StackCount(0) {} + +CPDF_PSEngine::~CPDF_PSEngine() {} + +void CPDF_PSEngine::Push(float v) { + if (m_StackCount < PSENGINE_STACKSIZE) + m_Stack[m_StackCount++] = v; +} + +float CPDF_PSEngine::Pop() { + return m_StackCount > 0 ? m_Stack[--m_StackCount] : 0; +} + +bool CPDF_PSEngine::Parse(const char* str, int size) { + CPDF_SimpleParser parser(reinterpret_cast<const uint8_t*>(str), size); + CFX_ByteStringC word = parser.GetWord(); + return word == "{" ? m_MainProc.Parse(&parser, 0) : false; +} + +bool CPDF_PSProc::Parse(CPDF_SimpleParser* parser, int depth) { + if (depth > kMaxDepth) + return false; + + while (1) { + CFX_ByteStringC word = parser->GetWord(); + if (word.IsEmpty()) + return false; + + if (word == "}") + return true; + + if (word == "{") { + m_Operators.push_back(pdfium::MakeUnique<CPDF_PSOP>()); + if (!m_Operators.back()->GetProc()->Parse(parser, depth + 1)) + return false; + continue; + } + + std::unique_ptr<CPDF_PSOP> op; + for (const PDF_PSOpName& op_name : kPsOpNames) { + if (word == CFX_ByteStringC(op_name.name)) { + op = pdfium::MakeUnique<CPDF_PSOP>(op_name.op); + break; + } + } + if (!op) + op = pdfium::MakeUnique<CPDF_PSOP>(FX_atof(word)); + m_Operators.push_back(std::move(op)); + } +} + +bool CPDF_PSEngine::DoOperator(PDF_PSOP op) { + int i1; + int i2; + float d1; + float d2; + FX_SAFE_INT32 result; + switch (op) { + case PSOP_ADD: + d1 = Pop(); + d2 = Pop(); + Push(d1 + d2); + break; + case PSOP_SUB: + d2 = Pop(); + d1 = Pop(); + Push(d1 - d2); + break; + case PSOP_MUL: + d1 = Pop(); + d2 = Pop(); + Push(d1 * d2); + break; + case PSOP_DIV: + d2 = Pop(); + d1 = Pop(); + Push(d1 / d2); + break; + case PSOP_IDIV: + i2 = static_cast<int>(Pop()); + i1 = static_cast<int>(Pop()); + if (i2) { + result = i1; + result /= i2; + Push(result.ValueOrDefault(0)); + } else { + Push(0); + } + break; + case PSOP_MOD: + i2 = static_cast<int>(Pop()); + i1 = static_cast<int>(Pop()); + if (i2) { + result = i1; + result %= i2; + Push(result.ValueOrDefault(0)); + } else { + Push(0); + } + break; + case PSOP_NEG: + d1 = Pop(); + Push(-d1); + break; + case PSOP_ABS: + d1 = Pop(); + Push((float)fabs(d1)); + break; + case PSOP_CEILING: + d1 = Pop(); + Push((float)ceil(d1)); + break; + case PSOP_FLOOR: + d1 = Pop(); + Push((float)floor(d1)); + break; + case PSOP_ROUND: + d1 = Pop(); + Push(FXSYS_round(d1)); + break; + case PSOP_TRUNCATE: + i1 = (int)Pop(); + Push(i1); + break; + case PSOP_SQRT: + d1 = Pop(); + Push((float)sqrt(d1)); + break; + case PSOP_SIN: + d1 = Pop(); + Push((float)sin(d1 * FX_PI / 180.0f)); + break; + case PSOP_COS: + d1 = Pop(); + Push((float)cos(d1 * FX_PI / 180.0f)); + break; + case PSOP_ATAN: + d2 = Pop(); + d1 = Pop(); + d1 = (float)(atan2(d1, d2) * 180.0 / FX_PI); + if (d1 < 0) { + d1 += 360; + } + Push(d1); + break; + case PSOP_EXP: + d2 = Pop(); + d1 = Pop(); + Push((float)FXSYS_pow(d1, d2)); + break; + case PSOP_LN: + d1 = Pop(); + Push((float)log(d1)); + break; + case PSOP_LOG: + d1 = Pop(); + Push((float)log10(d1)); + break; + case PSOP_CVI: + i1 = (int)Pop(); + Push(i1); + break; + case PSOP_CVR: + break; + case PSOP_EQ: + d2 = Pop(); + d1 = Pop(); + Push((int)(d1 == d2)); + break; + case PSOP_NE: + d2 = Pop(); + d1 = Pop(); + Push((int)(d1 != d2)); + break; + case PSOP_GT: + d2 = Pop(); + d1 = Pop(); + Push((int)(d1 > d2)); + break; + case PSOP_GE: + d2 = Pop(); + d1 = Pop(); + Push((int)(d1 >= d2)); + break; + case PSOP_LT: + d2 = Pop(); + d1 = Pop(); + Push((int)(d1 < d2)); + break; + case PSOP_LE: + d2 = Pop(); + d1 = Pop(); + Push((int)(d1 <= d2)); + break; + case PSOP_AND: + i1 = (int)Pop(); + i2 = (int)Pop(); + Push(i1 & i2); + break; + case PSOP_OR: + i1 = (int)Pop(); + i2 = (int)Pop(); + Push(i1 | i2); + break; + case PSOP_XOR: + i1 = (int)Pop(); + i2 = (int)Pop(); + Push(i1 ^ i2); + break; + case PSOP_NOT: + i1 = (int)Pop(); + Push((int)!i1); + break; + case PSOP_BITSHIFT: { + int shift = (int)Pop(); + result = (int)Pop(); + if (shift > 0) { + result <<= shift; + } else { + // Avoids unsafe negation of INT_MIN. + FX_SAFE_INT32 safe_shift = shift; + result >>= (-safe_shift).ValueOrDefault(0); + } + Push(result.ValueOrDefault(0)); + break; + } + case PSOP_TRUE: + Push(1); + break; + case PSOP_FALSE: + Push(0); + break; + case PSOP_POP: + Pop(); + break; + case PSOP_EXCH: + d2 = Pop(); + d1 = Pop(); + Push(d2); + Push(d1); + break; + case PSOP_DUP: + d1 = Pop(); + Push(d1); + Push(d1); + break; + case PSOP_COPY: { + int n = static_cast<int>(Pop()); + if (n < 0 || m_StackCount + n > PSENGINE_STACKSIZE || + n > static_cast<int>(m_StackCount)) + break; + for (int i = 0; i < n; i++) + m_Stack[m_StackCount + i] = m_Stack[m_StackCount + i - n]; + m_StackCount += n; + break; + } + case PSOP_INDEX: { + int n = static_cast<int>(Pop()); + if (n < 0 || n >= static_cast<int>(m_StackCount)) + break; + Push(m_Stack[m_StackCount - n - 1]); + break; + } + case PSOP_ROLL: { + int j = static_cast<int>(Pop()); + int n = static_cast<int>(Pop()); + if (j == 0 || n == 0 || m_StackCount == 0) + break; + if (n < 0 || n > static_cast<int>(m_StackCount)) + break; + + j %= n; + if (j > 0) + j -= n; + auto* begin_it = std::begin(m_Stack) + m_StackCount - n; + auto* middle_it = begin_it - j; + auto* end_it = std::begin(m_Stack) + m_StackCount; + std::rotate(begin_it, middle_it, end_it); + break; + } + default: + break; + } + return true; +} diff --git a/core/fpdfapi/page/cpdf_psfunc.cpp b/core/fpdfapi/page/cpdf_psfunc.cpp new file mode 100644 index 0000000000..debbbd6e6d --- /dev/null +++ b/core/fpdfapi/page/cpdf_psfunc.cpp @@ -0,0 +1,34 @@ +// 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 + +#include "core/fpdfapi/page/cpdf_psfunc.h" + +#include "core/fpdfapi/parser/cpdf_stream_acc.h" +#include "third_party/base/ptr_util.h" + +CPDF_PSFunc::CPDF_PSFunc() : CPDF_Function(Type::kType4PostScript) {} + +CPDF_PSFunc::~CPDF_PSFunc() {} + +bool CPDF_PSFunc::v_Init(CPDF_Object* pObj) { + auto pAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pObj->AsStream()); + pAcc->LoadAllData(false); + return m_PS.Parse(reinterpret_cast<const char*>(pAcc->GetData()), + pAcc->GetSize()); +} + +bool CPDF_PSFunc::v_Call(float* inputs, float* results) const { + CPDF_PSEngine& PS = const_cast<CPDF_PSEngine&>(m_PS); + PS.Reset(); + for (uint32_t i = 0; i < m_nInputs; i++) + PS.Push(inputs[i]); + PS.Execute(); + if (PS.GetStackSize() < m_nOutputs) + return false; + for (uint32_t i = 0; i < m_nOutputs; i++) + results[m_nOutputs - i - 1] = PS.Pop(); + return true; +} diff --git a/core/fpdfapi/page/cpdf_psfunc.h b/core/fpdfapi/page/cpdf_psfunc.h new file mode 100644 index 0000000000..b8c18c9472 --- /dev/null +++ b/core/fpdfapi/page/cpdf_psfunc.h @@ -0,0 +1,28 @@ +// 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_PSFUNC_H_ +#define CORE_FPDFAPI_PAGE_CPDF_PSFUNC_H_ + +#include "core/fpdfapi/page/cpdf_function.h" +#include "core/fpdfapi/page/cpdf_psengine.h" + +class CPDF_Object; + +class CPDF_PSFunc : public CPDF_Function { + public: + CPDF_PSFunc(); + ~CPDF_PSFunc() override; + + // CPDF_Function + bool v_Init(CPDF_Object* pObj) override; + bool v_Call(float* inputs, float* results) const override; + + private: + CPDF_PSEngine m_PS; +}; + +#endif // CORE_FPDFAPI_PAGE_CPDF_PSFUNC_H_ diff --git a/core/fpdfapi/page/cpdf_sampledfunc.cpp b/core/fpdfapi/page/cpdf_sampledfunc.cpp new file mode 100644 index 0000000000..37b9a4e468 --- /dev/null +++ b/core/fpdfapi/page/cpdf_sampledfunc.cpp @@ -0,0 +1,156 @@ +// 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 + +#include "core/fpdfapi/page/cpdf_sampledfunc.h" + +#include "core/fpdfapi/parser/cpdf_array.h" +#include "core/fxcrt/fx_safe_types.h" + +namespace { + +// See PDF Reference 1.7, page 170, table 3.36. +bool IsValidBitsPerSample(uint32_t x) { + switch (x) { + case 1: + case 2: + case 4: + case 8: + case 12: + case 16: + case 24: + case 32: + return true; + default: + return false; + } +} + +} // namespace + +CPDF_SampledFunc::CPDF_SampledFunc() : CPDF_Function(Type::kType0Sampled) {} + +CPDF_SampledFunc::~CPDF_SampledFunc() {} + +bool CPDF_SampledFunc::v_Init(CPDF_Object* pObj) { + CPDF_Stream* pStream = pObj->AsStream(); + if (!pStream) + return false; + + CPDF_Dictionary* pDict = pStream->GetDict(); + CPDF_Array* pSize = pDict->GetArrayFor("Size"); + CPDF_Array* pEncode = pDict->GetArrayFor("Encode"); + CPDF_Array* pDecode = pDict->GetArrayFor("Decode"); + m_nBitsPerSample = pDict->GetIntegerFor("BitsPerSample"); + if (!IsValidBitsPerSample(m_nBitsPerSample)) + return false; + + m_SampleMax = 0xffffffff >> (32 - m_nBitsPerSample); + m_pSampleStream = pdfium::MakeRetain<CPDF_StreamAcc>(pStream); + m_pSampleStream->LoadAllData(false); + FX_SAFE_UINT32 nTotalSampleBits = 1; + m_EncodeInfo.resize(m_nInputs); + for (uint32_t i = 0; i < m_nInputs; i++) { + m_EncodeInfo[i].sizes = pSize ? pSize->GetIntegerAt(i) : 0; + if (!pSize && i == 0) + m_EncodeInfo[i].sizes = pDict->GetIntegerFor("Size"); + nTotalSampleBits *= m_EncodeInfo[i].sizes; + if (pEncode) { + m_EncodeInfo[i].encode_min = pEncode->GetFloatAt(i * 2); + m_EncodeInfo[i].encode_max = pEncode->GetFloatAt(i * 2 + 1); + } else { + m_EncodeInfo[i].encode_min = 0; + m_EncodeInfo[i].encode_max = + m_EncodeInfo[i].sizes == 1 ? 1 : (float)m_EncodeInfo[i].sizes - 1; + } + } + nTotalSampleBits *= m_nBitsPerSample; + nTotalSampleBits *= m_nOutputs; + FX_SAFE_UINT32 nTotalSampleBytes = nTotalSampleBits; + nTotalSampleBytes += 7; + nTotalSampleBytes /= 8; + if (!nTotalSampleBytes.IsValid() || nTotalSampleBytes.ValueOrDie() == 0 || + nTotalSampleBytes.ValueOrDie() > m_pSampleStream->GetSize()) { + return false; + } + m_DecodeInfo.resize(m_nOutputs); + for (uint32_t i = 0; i < m_nOutputs; i++) { + if (pDecode) { + m_DecodeInfo[i].decode_min = pDecode->GetFloatAt(2 * i); + m_DecodeInfo[i].decode_max = pDecode->GetFloatAt(2 * i + 1); + } else { + m_DecodeInfo[i].decode_min = m_pRanges[i * 2]; + m_DecodeInfo[i].decode_max = m_pRanges[i * 2 + 1]; + } + } + return true; +} + +bool CPDF_SampledFunc::v_Call(float* inputs, float* results) const { + int pos = 0; + CFX_FixedBufGrow<float, 16> encoded_input_buf(m_nInputs); + float* encoded_input = encoded_input_buf; + CFX_FixedBufGrow<uint32_t, 32> int_buf(m_nInputs * 2); + uint32_t* index = int_buf; + uint32_t* blocksize = index + m_nInputs; + for (uint32_t i = 0; i < m_nInputs; i++) { + if (i == 0) + blocksize[i] = 1; + else + blocksize[i] = blocksize[i - 1] * m_EncodeInfo[i - 1].sizes; + encoded_input[i] = + Interpolate(inputs[i], m_pDomains[i * 2], m_pDomains[i * 2 + 1], + m_EncodeInfo[i].encode_min, m_EncodeInfo[i].encode_max); + index[i] = pdfium::clamp(static_cast<uint32_t>(encoded_input[i]), 0U, + m_EncodeInfo[i].sizes - 1); + pos += index[i] * blocksize[i]; + } + FX_SAFE_INT32 bits_to_output = m_nOutputs; + bits_to_output *= m_nBitsPerSample; + if (!bits_to_output.IsValid()) + return false; + + FX_SAFE_INT32 bitpos = pos; + bitpos *= bits_to_output.ValueOrDie(); + if (!bitpos.IsValid()) + return false; + + FX_SAFE_INT32 range_check = bitpos; + range_check += bits_to_output.ValueOrDie(); + if (!range_check.IsValid()) + return false; + + const uint8_t* pSampleData = m_pSampleStream->GetData(); + if (!pSampleData) + return false; + + for (uint32_t j = 0; j < m_nOutputs; j++, bitpos += m_nBitsPerSample) { + uint32_t sample = + GetBits32(pSampleData, bitpos.ValueOrDie(), m_nBitsPerSample); + float encoded = (float)sample; + for (uint32_t i = 0; i < m_nInputs; i++) { + if (index[i] == m_EncodeInfo[i].sizes - 1) { + if (index[i] == 0) + encoded = encoded_input[i] * (float)sample; + } else { + FX_SAFE_INT32 bitpos2 = blocksize[i]; + bitpos2 += pos; + bitpos2 *= m_nOutputs; + bitpos2 += j; + bitpos2 *= m_nBitsPerSample; + if (!bitpos2.IsValid()) + return false; + uint32_t sample1 = + GetBits32(pSampleData, bitpos2.ValueOrDie(), m_nBitsPerSample); + encoded += + (encoded_input[i] - index[i]) * ((float)sample1 - (float)sample); + } + } + results[j] = + Interpolate(encoded, 0, (float)m_SampleMax, m_DecodeInfo[j].decode_min, + m_DecodeInfo[j].decode_max); + } + return true; +} diff --git a/core/fpdfapi/page/cpdf_sampledfunc.h b/core/fpdfapi/page/cpdf_sampledfunc.h new file mode 100644 index 0000000000..59fe1ef141 --- /dev/null +++ b/core/fpdfapi/page/cpdf_sampledfunc.h @@ -0,0 +1,52 @@ +// 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_SAMPLEDFUNC_H_ +#define CORE_FPDFAPI_PAGE_CPDF_SAMPLEDFUNC_H_ + +#include <vector> + +#include "core/fpdfapi/page/cpdf_function.h" +#include "core/fpdfapi/parser/cpdf_stream_acc.h" +#include "core/fxcrt/cfx_retain_ptr.h" + +class CPDF_SampledFunc : public CPDF_Function { + public: + struct SampleEncodeInfo { + float encode_max; + float encode_min; + uint32_t sizes; + }; + + struct SampleDecodeInfo { + float decode_max; + float decode_min; + }; + + CPDF_SampledFunc(); + ~CPDF_SampledFunc() override; + + // CPDF_Function + bool v_Init(CPDF_Object* pObj) override; + bool v_Call(float* inputs, float* results) const override; + + const std::vector<SampleEncodeInfo>& GetEncodeInfo() const { + return m_EncodeInfo; + } + uint32_t GetBitsPerSample() const { return m_nBitsPerSample; } + CFX_RetainPtr<CPDF_StreamAcc> GetSampleStream() const { + return m_pSampleStream; + } + + private: + std::vector<SampleEncodeInfo> m_EncodeInfo; + std::vector<SampleDecodeInfo> m_DecodeInfo; + uint32_t m_nBitsPerSample; + uint32_t m_SampleMax; + CFX_RetainPtr<CPDF_StreamAcc> m_pSampleStream; +}; + +#endif // CORE_FPDFAPI_PAGE_CPDF_SAMPLEDFUNC_H_ diff --git a/core/fpdfapi/page/cpdf_shadingpattern.cpp b/core/fpdfapi/page/cpdf_shadingpattern.cpp index 80eea63f9c..c21f51cb77 100644 --- a/core/fpdfapi/page/cpdf_shadingpattern.cpp +++ b/core/fpdfapi/page/cpdf_shadingpattern.cpp @@ -9,7 +9,7 @@ #include <algorithm> #include "core/fpdfapi/page/cpdf_docpagedata.h" -#include "core/fpdfapi/page/pageint.h" +#include "core/fpdfapi/page/cpdf_function.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" diff --git a/core/fpdfapi/page/cpdf_shadingpattern.h b/core/fpdfapi/page/cpdf_shadingpattern.h index c2d55cc3d5..068d772bc3 100644 --- a/core/fpdfapi/page/cpdf_shadingpattern.h +++ b/core/fpdfapi/page/cpdf_shadingpattern.h @@ -10,7 +10,7 @@ #include <memory> #include <vector> -#include "core/fpdfapi/page/cpdf_countedobject.h" +#include "core/fpdfapi/page/cpdf_colorspace.h" #include "core/fpdfapi/page/cpdf_pattern.h" #include "core/fxcrt/cfx_unowned_ptr.h" #include "core/fxcrt/fx_system.h" diff --git a/core/fpdfapi/page/cpdf_stitchfunc.cpp b/core/fpdfapi/page/cpdf_stitchfunc.cpp new file mode 100644 index 0000000000..336c74bf5c --- /dev/null +++ b/core/fpdfapi/page/cpdf_stitchfunc.cpp @@ -0,0 +1,91 @@ +// 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 + +#include "core/fpdfapi/page/cpdf_stitchfunc.h" + +#include <utility> + +#include "core/fpdfapi/parser/cpdf_array.h" +#include "core/fpdfapi/parser/cpdf_dictionary.h" +#include "core/fxcrt/fx_memory.h" + +CPDF_StitchFunc::CPDF_StitchFunc() + : CPDF_Function(Type::kType3Stitching), + m_pBounds(nullptr), + m_pEncode(nullptr) {} + +CPDF_StitchFunc::~CPDF_StitchFunc() { + FX_Free(m_pBounds); + FX_Free(m_pEncode); +} + +bool CPDF_StitchFunc::v_Init(CPDF_Object* pObj) { + CPDF_Dictionary* pDict = pObj->GetDict(); + if (!pDict) { + return false; + } + if (m_nInputs != kRequiredNumInputs) { + return false; + } + CPDF_Array* pArray = pDict->GetArrayFor("Functions"); + if (!pArray) { + return false; + } + uint32_t nSubs = pArray->GetCount(); + if (nSubs == 0) + return false; + m_nOutputs = 0; + for (uint32_t i = 0; i < nSubs; i++) { + CPDF_Object* pSub = pArray->GetDirectObjectAt(i); + if (pSub == pObj) + return false; + std::unique_ptr<CPDF_Function> pFunc(CPDF_Function::Load(pSub)); + if (!pFunc) + return false; + // Check that the input dimensionality is 1, and that all output + // dimensionalities are the same. + if (pFunc->CountInputs() != kRequiredNumInputs) + return false; + if (pFunc->CountOutputs() != m_nOutputs) { + if (m_nOutputs) + return false; + + m_nOutputs = pFunc->CountOutputs(); + } + + m_pSubFunctions.push_back(std::move(pFunc)); + } + m_pBounds = FX_Alloc(float, nSubs + 1); + m_pBounds[0] = m_pDomains[0]; + pArray = pDict->GetArrayFor("Bounds"); + if (!pArray) + return false; + for (uint32_t i = 0; i < nSubs - 1; i++) + m_pBounds[i + 1] = pArray->GetFloatAt(i); + m_pBounds[nSubs] = m_pDomains[1]; + m_pEncode = FX_Alloc2D(float, nSubs, 2); + pArray = pDict->GetArrayFor("Encode"); + if (!pArray) + return false; + + for (uint32_t i = 0; i < nSubs * 2; i++) + m_pEncode[i] = pArray->GetFloatAt(i); + return true; +} + +bool CPDF_StitchFunc::v_Call(float* inputs, float* outputs) const { + float input = inputs[0]; + size_t i; + for (i = 0; i < m_pSubFunctions.size() - 1; i++) { + if (input < m_pBounds[i + 1]) + break; + } + input = Interpolate(input, m_pBounds[i], m_pBounds[i + 1], m_pEncode[i * 2], + m_pEncode[i * 2 + 1]); + int nresults; + m_pSubFunctions[i]->Call(&input, kRequiredNumInputs, outputs, &nresults); + return true; +} diff --git a/core/fpdfapi/page/cpdf_stitchfunc.h b/core/fpdfapi/page/cpdf_stitchfunc.h new file mode 100644 index 0000000000..69e5e41041 --- /dev/null +++ b/core/fpdfapi/page/cpdf_stitchfunc.h @@ -0,0 +1,37 @@ +// 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_STITCHFUNC_H_ +#define CORE_FPDFAPI_PAGE_CPDF_STITCHFUNC_H_ + +#include <memory> +#include <vector> + +#include "core/fpdfapi/page/cpdf_function.h" + +class CPDF_StitchFunc : public CPDF_Function { + public: + CPDF_StitchFunc(); + ~CPDF_StitchFunc() override; + + // CPDF_Function + bool v_Init(CPDF_Object* pObj) override; + bool v_Call(float* inputs, float* results) const override; + + const std::vector<std::unique_ptr<CPDF_Function>>& GetSubFunctions() const { + return m_pSubFunctions; + } + float GetBound(size_t i) const { return m_pBounds[i]; } + + private: + std::vector<std::unique_ptr<CPDF_Function>> m_pSubFunctions; + float* m_pBounds; + float* m_pEncode; + + static const uint32_t kRequiredNumInputs = 1; +}; + +#endif // CORE_FPDFAPI_PAGE_CPDF_STITCHFUNC_H_ diff --git a/core/fpdfapi/page/fpdf_page_func_embeddertest.cpp b/core/fpdfapi/page/cpdf_stitchfunc_embeddertest.cpp index 6a1b87b570..6a1b87b570 100644 --- a/core/fpdfapi/page/fpdf_page_func_embeddertest.cpp +++ b/core/fpdfapi/page/cpdf_stitchfunc_embeddertest.cpp diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.cpp b/core/fpdfapi/page/cpdf_streamcontentparser.cpp index e8594b927b..151b0e644e 100644 --- a/core/fpdfapi/page/cpdf_streamcontentparser.cpp +++ b/core/fpdfapi/page/cpdf_streamcontentparser.cpp @@ -25,7 +25,6 @@ #include "core/fpdfapi/page/cpdf_shadingpattern.h" #include "core/fpdfapi/page/cpdf_streamparser.h" #include "core/fpdfapi/page/cpdf_textobject.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" @@ -236,15 +235,6 @@ void ReplaceAbbr(CPDF_Object* pObj) { } // namespace -CFX_ByteStringC PDF_FindKeyAbbreviationForTesting(const CFX_ByteStringC& abbr) { - return FindFullName(InlineKeyAbbr, FX_ArraySize(InlineKeyAbbr), abbr); -} - -CFX_ByteStringC PDF_FindValueAbbreviationForTesting( - const CFX_ByteStringC& abbr) { - return FindFullName(InlineValueAbbr, FX_ArraySize(InlineValueAbbr), abbr); -} - CPDF_StreamContentParser::CPDF_StreamContentParser( CPDF_Document* pDocument, CPDF_Dictionary* pPageResources, @@ -1627,6 +1617,16 @@ void CPDF_StreamContentParser::ParsePathObject() { } } +CFX_ByteStringC CPDF_StreamContentParser::FindKeyAbbreviationForTesting( + const CFX_ByteStringC& abbr) { + return FindFullName(InlineKeyAbbr, FX_ArraySize(InlineKeyAbbr), abbr); +} + +CFX_ByteStringC CPDF_StreamContentParser::FindValueAbbreviationForTesting( + const CFX_ByteStringC& abbr) { + return FindFullName(InlineValueAbbr, FX_ArraySize(InlineValueAbbr), abbr); +} + CPDF_StreamContentParser::ContentParam::ContentParam() {} CPDF_StreamContentParser::ContentParam::~ContentParam() {} diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.h b/core/fpdfapi/page/cpdf_streamcontentparser.h index 5436f8f8c6..41385558d3 100644 --- a/core/fpdfapi/page/cpdf_streamcontentparser.h +++ b/core/fpdfapi/page/cpdf_streamcontentparser.h @@ -51,6 +51,9 @@ class CPDF_StreamContentParser { const float* GetType3Data() const { return m_Type3Data; } CPDF_Font* FindFont(const CFX_ByteString& name); + CFX_ByteStringC FindKeyAbbreviationForTesting(const CFX_ByteStringC& abbr); + CFX_ByteStringC FindValueAbbreviationForTesting(const CFX_ByteStringC& abbr); + private: struct ContentParam { enum Type { OBJECT = 0, NUMBER, NAME }; diff --git a/core/fpdfapi/page/cpdf_streamcontentparser_unittest.cpp b/core/fpdfapi/page/cpdf_streamcontentparser_unittest.cpp index be2fcb09e4..ffc0d95107 100644 --- a/core/fpdfapi/page/cpdf_streamcontentparser_unittest.cpp +++ b/core/fpdfapi/page/cpdf_streamcontentparser_unittest.cpp @@ -2,33 +2,39 @@ // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. -#include "core/fpdfapi/page/pageint.h" +#include "core/fpdfapi/page/cpdf_streamcontentparser.h" #include "testing/gtest/include/gtest/gtest.h" TEST(cpdf_streamcontentparser, PDF_FindKeyAbbreviation) { + CPDF_StreamContentParser parser(nullptr, nullptr, nullptr, nullptr, nullptr, + nullptr, nullptr, nullptr, 0); + EXPECT_EQ(CFX_ByteStringC("BitsPerComponent"), - PDF_FindKeyAbbreviationForTesting(CFX_ByteStringC("BPC"))); + parser.FindKeyAbbreviationForTesting(CFX_ByteStringC("BPC"))); EXPECT_EQ(CFX_ByteStringC("Width"), - PDF_FindKeyAbbreviationForTesting(CFX_ByteStringC("W"))); + parser.FindKeyAbbreviationForTesting(CFX_ByteStringC("W"))); EXPECT_EQ(CFX_ByteStringC(""), - PDF_FindKeyAbbreviationForTesting(CFX_ByteStringC(""))); + parser.FindKeyAbbreviationForTesting(CFX_ByteStringC(""))); EXPECT_EQ(CFX_ByteStringC(""), - PDF_FindKeyAbbreviationForTesting(CFX_ByteStringC("NoInList"))); + parser.FindKeyAbbreviationForTesting(CFX_ByteStringC("NoInList"))); // Prefix should not match. EXPECT_EQ(CFX_ByteStringC(""), - PDF_FindKeyAbbreviationForTesting(CFX_ByteStringC("WW"))); + parser.FindKeyAbbreviationForTesting(CFX_ByteStringC("WW"))); } TEST(cpdf_streamcontentparser, PDF_FindValueAbbreviation) { + CPDF_StreamContentParser parser(nullptr, nullptr, nullptr, nullptr, nullptr, + nullptr, nullptr, nullptr, 0); + EXPECT_EQ(CFX_ByteStringC("DeviceGray"), - PDF_FindValueAbbreviationForTesting(CFX_ByteStringC("G"))); + parser.FindValueAbbreviationForTesting(CFX_ByteStringC("G"))); EXPECT_EQ(CFX_ByteStringC("DCTDecode"), - PDF_FindValueAbbreviationForTesting(CFX_ByteStringC("DCT"))); - EXPECT_EQ(CFX_ByteStringC(""), - PDF_FindValueAbbreviationForTesting(CFX_ByteStringC(""))); + parser.FindValueAbbreviationForTesting(CFX_ByteStringC("DCT"))); EXPECT_EQ(CFX_ByteStringC(""), - PDF_FindValueAbbreviationForTesting(CFX_ByteStringC("NoInList"))); + parser.FindValueAbbreviationForTesting(CFX_ByteStringC(""))); + EXPECT_EQ(CFX_ByteStringC(""), parser.FindValueAbbreviationForTesting( + CFX_ByteStringC("NoInList"))); // Prefix should not match. EXPECT_EQ(CFX_ByteStringC(""), - PDF_FindValueAbbreviationForTesting(CFX_ByteStringC("II"))); + parser.FindValueAbbreviationForTesting(CFX_ByteStringC("II"))); } diff --git a/core/fpdfapi/page/fpdf_page_func.cpp b/core/fpdfapi/page/fpdf_page_func.cpp deleted file mode 100644 index 48cd41c090..0000000000 --- a/core/fpdfapi/page/fpdf_page_func.cpp +++ /dev/null @@ -1,851 +0,0 @@ -// Copyright 2014 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 - -#include "core/fpdfapi/page/pageint.h" - -#include <limits.h> - -#include <algorithm> -#include <memory> -#include <utility> -#include <vector> - -#include "core/fpdfapi/page/cpdf_psengine.h" -#include "core/fpdfapi/parser/cpdf_array.h" -#include "core/fpdfapi/parser/cpdf_dictionary.h" -#include "core/fpdfapi/parser/cpdf_simple_parser.h" -#include "core/fpdfapi/parser/cpdf_stream.h" -#include "core/fpdfapi/parser/cpdf_stream_acc.h" -#include "core/fxcrt/fx_safe_types.h" -#include "third_party/base/logging.h" -#include "third_party/base/ptr_util.h" -#include "third_party/base/stl_util.h" - -namespace { - -struct PDF_PSOpName { - const char* name; - PDF_PSOP op; -}; - -const PDF_PSOpName kPsOpNames[] = { - {"add", PSOP_ADD}, {"sub", PSOP_SUB}, - {"mul", PSOP_MUL}, {"div", PSOP_DIV}, - {"idiv", PSOP_IDIV}, {"mod", PSOP_MOD}, - {"neg", PSOP_NEG}, {"abs", PSOP_ABS}, - {"ceiling", PSOP_CEILING}, {"floor", PSOP_FLOOR}, - {"round", PSOP_ROUND}, {"truncate", PSOP_TRUNCATE}, - {"sqrt", PSOP_SQRT}, {"sin", PSOP_SIN}, - {"cos", PSOP_COS}, {"atan", PSOP_ATAN}, - {"exp", PSOP_EXP}, {"ln", PSOP_LN}, - {"log", PSOP_LOG}, {"cvi", PSOP_CVI}, - {"cvr", PSOP_CVR}, {"eq", PSOP_EQ}, - {"ne", PSOP_NE}, {"gt", PSOP_GT}, - {"ge", PSOP_GE}, {"lt", PSOP_LT}, - {"le", PSOP_LE}, {"and", PSOP_AND}, - {"or", PSOP_OR}, {"xor", PSOP_XOR}, - {"not", PSOP_NOT}, {"bitshift", PSOP_BITSHIFT}, - {"true", PSOP_TRUE}, {"false", PSOP_FALSE}, - {"if", PSOP_IF}, {"ifelse", PSOP_IFELSE}, - {"pop", PSOP_POP}, {"exch", PSOP_EXCH}, - {"dup", PSOP_DUP}, {"copy", PSOP_COPY}, - {"index", PSOP_INDEX}, {"roll", PSOP_ROLL}}; - -// See PDF Reference 1.7, page 170, table 3.36. -bool IsValidBitsPerSample(uint32_t x) { - switch (x) { - case 1: - case 2: - case 4: - case 8: - case 12: - case 16: - case 24: - case 32: - return true; - default: - return false; - } -} - -// See PDF Reference 1.7, page 170. -float PDF_Interpolate(float x, float xmin, float xmax, float ymin, float ymax) { - float divisor = xmax - xmin; - return ymin + (divisor ? (x - xmin) * (ymax - ymin) / divisor : 0); -} - -class CPDF_PSFunc : public CPDF_Function { - public: - CPDF_PSFunc() : CPDF_Function(Type::kType4PostScript) {} - ~CPDF_PSFunc() override {} - - // CPDF_Function - bool v_Init(CPDF_Object* pObj) override; - bool v_Call(float* inputs, float* results) const override; - - private: - CPDF_PSEngine m_PS; -}; - -bool CPDF_PSFunc::v_Init(CPDF_Object* pObj) { - auto pAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pObj->AsStream()); - pAcc->LoadAllData(false); - return m_PS.Parse(reinterpret_cast<const char*>(pAcc->GetData()), - pAcc->GetSize()); -} - -bool CPDF_PSFunc::v_Call(float* inputs, float* results) const { - CPDF_PSEngine& PS = const_cast<CPDF_PSEngine&>(m_PS); - PS.Reset(); - for (uint32_t i = 0; i < m_nInputs; i++) - PS.Push(inputs[i]); - PS.Execute(); - if (PS.GetStackSize() < m_nOutputs) - return false; - for (uint32_t i = 0; i < m_nOutputs; i++) - results[m_nOutputs - i - 1] = PS.Pop(); - return true; -} - -} // namespace - -class CPDF_PSOP { - public: - explicit CPDF_PSOP(PDF_PSOP op) : m_op(op), m_value(0) { - ASSERT(m_op != PSOP_CONST); - ASSERT(m_op != PSOP_PROC); - } - explicit CPDF_PSOP(float value) : m_op(PSOP_CONST), m_value(value) {} - CPDF_PSOP() - : m_op(PSOP_PROC), - m_value(0), - m_proc(pdfium::MakeUnique<CPDF_PSProc>()) {} - - float GetFloatValue() const { - if (m_op == PSOP_CONST) - return m_value; - - NOTREACHED(); - return 0; - } - CPDF_PSProc* GetProc() const { - if (m_op == PSOP_PROC) - return m_proc.get(); - NOTREACHED(); - return nullptr; - } - - PDF_PSOP GetOp() const { return m_op; } - - private: - const PDF_PSOP m_op; - const float m_value; - std::unique_ptr<CPDF_PSProc> m_proc; -}; - -bool CPDF_PSEngine::Execute() { - return m_MainProc.Execute(this); -} - -CPDF_PSProc::CPDF_PSProc() {} -CPDF_PSProc::~CPDF_PSProc() {} - -bool CPDF_PSProc::Execute(CPDF_PSEngine* pEngine) { - for (size_t i = 0; i < m_Operators.size(); ++i) { - const PDF_PSOP op = m_Operators[i]->GetOp(); - if (op == PSOP_PROC) - continue; - - if (op == PSOP_CONST) { - pEngine->Push(m_Operators[i]->GetFloatValue()); - continue; - } - - if (op == PSOP_IF) { - if (i == 0 || m_Operators[i - 1]->GetOp() != PSOP_PROC) - return false; - - if (static_cast<int>(pEngine->Pop())) - m_Operators[i - 1]->GetProc()->Execute(pEngine); - } else if (op == PSOP_IFELSE) { - if (i < 2 || m_Operators[i - 1]->GetOp() != PSOP_PROC || - m_Operators[i - 2]->GetOp() != PSOP_PROC) { - return false; - } - size_t offset = static_cast<int>(pEngine->Pop()) ? 2 : 1; - m_Operators[i - offset]->GetProc()->Execute(pEngine); - } else { - pEngine->DoOperator(op); - } - } - return true; -} - -CPDF_PSEngine::CPDF_PSEngine() : m_StackCount(0) {} - -CPDF_PSEngine::~CPDF_PSEngine() {} - -void CPDF_PSEngine::Push(float v) { - if (m_StackCount < PSENGINE_STACKSIZE) - m_Stack[m_StackCount++] = v; -} - -float CPDF_PSEngine::Pop() { - return m_StackCount > 0 ? m_Stack[--m_StackCount] : 0; -} - -bool CPDF_PSEngine::Parse(const char* str, int size) { - CPDF_SimpleParser parser(reinterpret_cast<const uint8_t*>(str), size); - CFX_ByteStringC word = parser.GetWord(); - return word == "{" ? m_MainProc.Parse(&parser, 0) : false; -} - -bool CPDF_PSProc::Parse(CPDF_SimpleParser* parser, int depth) { - if (depth > kMaxDepth) - return false; - - while (1) { - CFX_ByteStringC word = parser->GetWord(); - if (word.IsEmpty()) - return false; - - if (word == "}") - return true; - - if (word == "{") { - m_Operators.push_back(pdfium::MakeUnique<CPDF_PSOP>()); - if (!m_Operators.back()->GetProc()->Parse(parser, depth + 1)) - return false; - continue; - } - - std::unique_ptr<CPDF_PSOP> op; - for (const PDF_PSOpName& op_name : kPsOpNames) { - if (word == CFX_ByteStringC(op_name.name)) { - op = pdfium::MakeUnique<CPDF_PSOP>(op_name.op); - break; - } - } - if (!op) - op = pdfium::MakeUnique<CPDF_PSOP>(FX_atof(word)); - m_Operators.push_back(std::move(op)); - } -} - -bool CPDF_PSEngine::DoOperator(PDF_PSOP op) { - int i1; - int i2; - float d1; - float d2; - FX_SAFE_INT32 result; - switch (op) { - case PSOP_ADD: - d1 = Pop(); - d2 = Pop(); - Push(d1 + d2); - break; - case PSOP_SUB: - d2 = Pop(); - d1 = Pop(); - Push(d1 - d2); - break; - case PSOP_MUL: - d1 = Pop(); - d2 = Pop(); - Push(d1 * d2); - break; - case PSOP_DIV: - d2 = Pop(); - d1 = Pop(); - Push(d1 / d2); - break; - case PSOP_IDIV: - i2 = static_cast<int>(Pop()); - i1 = static_cast<int>(Pop()); - if (i2) { - result = i1; - result /= i2; - Push(result.ValueOrDefault(0)); - } else { - Push(0); - } - break; - case PSOP_MOD: - i2 = static_cast<int>(Pop()); - i1 = static_cast<int>(Pop()); - if (i2) { - result = i1; - result %= i2; - Push(result.ValueOrDefault(0)); - } else { - Push(0); - } - break; - case PSOP_NEG: - d1 = Pop(); - Push(-d1); - break; - case PSOP_ABS: - d1 = Pop(); - Push((float)fabs(d1)); - break; - case PSOP_CEILING: - d1 = Pop(); - Push((float)ceil(d1)); - break; - case PSOP_FLOOR: - d1 = Pop(); - Push((float)floor(d1)); - break; - case PSOP_ROUND: - d1 = Pop(); - Push(FXSYS_round(d1)); - break; - case PSOP_TRUNCATE: - i1 = (int)Pop(); - Push(i1); - break; - case PSOP_SQRT: - d1 = Pop(); - Push((float)sqrt(d1)); - break; - case PSOP_SIN: - d1 = Pop(); - Push((float)sin(d1 * FX_PI / 180.0f)); - break; - case PSOP_COS: - d1 = Pop(); - Push((float)cos(d1 * FX_PI / 180.0f)); - break; - case PSOP_ATAN: - d2 = Pop(); - d1 = Pop(); - d1 = (float)(atan2(d1, d2) * 180.0 / FX_PI); - if (d1 < 0) { - d1 += 360; - } - Push(d1); - break; - case PSOP_EXP: - d2 = Pop(); - d1 = Pop(); - Push((float)FXSYS_pow(d1, d2)); - break; - case PSOP_LN: - d1 = Pop(); - Push((float)log(d1)); - break; - case PSOP_LOG: - d1 = Pop(); - Push((float)log10(d1)); - break; - case PSOP_CVI: - i1 = (int)Pop(); - Push(i1); - break; - case PSOP_CVR: - break; - case PSOP_EQ: - d2 = Pop(); - d1 = Pop(); - Push((int)(d1 == d2)); - break; - case PSOP_NE: - d2 = Pop(); - d1 = Pop(); - Push((int)(d1 != d2)); - break; - case PSOP_GT: - d2 = Pop(); - d1 = Pop(); - Push((int)(d1 > d2)); - break; - case PSOP_GE: - d2 = Pop(); - d1 = Pop(); - Push((int)(d1 >= d2)); - break; - case PSOP_LT: - d2 = Pop(); - d1 = Pop(); - Push((int)(d1 < d2)); - break; - case PSOP_LE: - d2 = Pop(); - d1 = Pop(); - Push((int)(d1 <= d2)); - break; - case PSOP_AND: - i1 = (int)Pop(); - i2 = (int)Pop(); - Push(i1 & i2); - break; - case PSOP_OR: - i1 = (int)Pop(); - i2 = (int)Pop(); - Push(i1 | i2); - break; - case PSOP_XOR: - i1 = (int)Pop(); - i2 = (int)Pop(); - Push(i1 ^ i2); - break; - case PSOP_NOT: - i1 = (int)Pop(); - Push((int)!i1); - break; - case PSOP_BITSHIFT: { - int shift = (int)Pop(); - result = (int)Pop(); - if (shift > 0) { - result <<= shift; - } else { - // Avoids unsafe negation of INT_MIN. - FX_SAFE_INT32 safe_shift = shift; - result >>= (-safe_shift).ValueOrDefault(0); - } - Push(result.ValueOrDefault(0)); - break; - } - case PSOP_TRUE: - Push(1); - break; - case PSOP_FALSE: - Push(0); - break; - case PSOP_POP: - Pop(); - break; - case PSOP_EXCH: - d2 = Pop(); - d1 = Pop(); - Push(d2); - Push(d1); - break; - case PSOP_DUP: - d1 = Pop(); - Push(d1); - Push(d1); - break; - case PSOP_COPY: { - int n = static_cast<int>(Pop()); - if (n < 0 || m_StackCount + n > PSENGINE_STACKSIZE || - n > static_cast<int>(m_StackCount)) - break; - for (int i = 0; i < n; i++) - m_Stack[m_StackCount + i] = m_Stack[m_StackCount + i - n]; - m_StackCount += n; - break; - } - case PSOP_INDEX: { - int n = static_cast<int>(Pop()); - if (n < 0 || n >= static_cast<int>(m_StackCount)) - break; - Push(m_Stack[m_StackCount - n - 1]); - break; - } - case PSOP_ROLL: { - int j = static_cast<int>(Pop()); - int n = static_cast<int>(Pop()); - if (j == 0 || n == 0 || m_StackCount == 0) - break; - if (n < 0 || n > static_cast<int>(m_StackCount)) - break; - - j %= n; - if (j > 0) - j -= n; - auto* begin_it = std::begin(m_Stack) + m_StackCount - n; - auto* middle_it = begin_it - j; - auto* end_it = std::begin(m_Stack) + m_StackCount; - std::rotate(begin_it, middle_it, end_it); - break; - } - default: - break; - } - return true; -} - -CPDF_SampledFunc::CPDF_SampledFunc() : CPDF_Function(Type::kType0Sampled) {} - -CPDF_SampledFunc::~CPDF_SampledFunc() {} - -bool CPDF_SampledFunc::v_Init(CPDF_Object* pObj) { - CPDF_Stream* pStream = pObj->AsStream(); - if (!pStream) - return false; - - CPDF_Dictionary* pDict = pStream->GetDict(); - CPDF_Array* pSize = pDict->GetArrayFor("Size"); - CPDF_Array* pEncode = pDict->GetArrayFor("Encode"); - CPDF_Array* pDecode = pDict->GetArrayFor("Decode"); - m_nBitsPerSample = pDict->GetIntegerFor("BitsPerSample"); - if (!IsValidBitsPerSample(m_nBitsPerSample)) - return false; - - m_SampleMax = 0xffffffff >> (32 - m_nBitsPerSample); - m_pSampleStream = pdfium::MakeRetain<CPDF_StreamAcc>(pStream); - m_pSampleStream->LoadAllData(false); - FX_SAFE_UINT32 nTotalSampleBits = 1; - m_EncodeInfo.resize(m_nInputs); - for (uint32_t i = 0; i < m_nInputs; i++) { - m_EncodeInfo[i].sizes = pSize ? pSize->GetIntegerAt(i) : 0; - if (!pSize && i == 0) - m_EncodeInfo[i].sizes = pDict->GetIntegerFor("Size"); - nTotalSampleBits *= m_EncodeInfo[i].sizes; - if (pEncode) { - m_EncodeInfo[i].encode_min = pEncode->GetFloatAt(i * 2); - m_EncodeInfo[i].encode_max = pEncode->GetFloatAt(i * 2 + 1); - } else { - m_EncodeInfo[i].encode_min = 0; - m_EncodeInfo[i].encode_max = - m_EncodeInfo[i].sizes == 1 ? 1 : (float)m_EncodeInfo[i].sizes - 1; - } - } - nTotalSampleBits *= m_nBitsPerSample; - nTotalSampleBits *= m_nOutputs; - FX_SAFE_UINT32 nTotalSampleBytes = nTotalSampleBits; - nTotalSampleBytes += 7; - nTotalSampleBytes /= 8; - if (!nTotalSampleBytes.IsValid() || nTotalSampleBytes.ValueOrDie() == 0 || - nTotalSampleBytes.ValueOrDie() > m_pSampleStream->GetSize()) { - return false; - } - m_DecodeInfo.resize(m_nOutputs); - for (uint32_t i = 0; i < m_nOutputs; i++) { - if (pDecode) { - m_DecodeInfo[i].decode_min = pDecode->GetFloatAt(2 * i); - m_DecodeInfo[i].decode_max = pDecode->GetFloatAt(2 * i + 1); - } else { - m_DecodeInfo[i].decode_min = m_pRanges[i * 2]; - m_DecodeInfo[i].decode_max = m_pRanges[i * 2 + 1]; - } - } - return true; -} - -bool CPDF_SampledFunc::v_Call(float* inputs, float* results) const { - int pos = 0; - CFX_FixedBufGrow<float, 16> encoded_input_buf(m_nInputs); - float* encoded_input = encoded_input_buf; - CFX_FixedBufGrow<uint32_t, 32> int_buf(m_nInputs * 2); - uint32_t* index = int_buf; - uint32_t* blocksize = index + m_nInputs; - for (uint32_t i = 0; i < m_nInputs; i++) { - if (i == 0) - blocksize[i] = 1; - else - blocksize[i] = blocksize[i - 1] * m_EncodeInfo[i - 1].sizes; - encoded_input[i] = - PDF_Interpolate(inputs[i], m_pDomains[i * 2], m_pDomains[i * 2 + 1], - m_EncodeInfo[i].encode_min, m_EncodeInfo[i].encode_max); - index[i] = pdfium::clamp(static_cast<uint32_t>(encoded_input[i]), 0U, - m_EncodeInfo[i].sizes - 1); - pos += index[i] * blocksize[i]; - } - FX_SAFE_INT32 bits_to_output = m_nOutputs; - bits_to_output *= m_nBitsPerSample; - if (!bits_to_output.IsValid()) - return false; - - FX_SAFE_INT32 bitpos = pos; - bitpos *= bits_to_output.ValueOrDie(); - if (!bitpos.IsValid()) - return false; - - FX_SAFE_INT32 range_check = bitpos; - range_check += bits_to_output.ValueOrDie(); - if (!range_check.IsValid()) - return false; - - const uint8_t* pSampleData = m_pSampleStream->GetData(); - if (!pSampleData) - return false; - - for (uint32_t j = 0; j < m_nOutputs; j++, bitpos += m_nBitsPerSample) { - uint32_t sample = - GetBits32(pSampleData, bitpos.ValueOrDie(), m_nBitsPerSample); - float encoded = (float)sample; - for (uint32_t i = 0; i < m_nInputs; i++) { - if (index[i] == m_EncodeInfo[i].sizes - 1) { - if (index[i] == 0) - encoded = encoded_input[i] * (float)sample; - } else { - FX_SAFE_INT32 bitpos2 = blocksize[i]; - bitpos2 += pos; - bitpos2 *= m_nOutputs; - bitpos2 += j; - bitpos2 *= m_nBitsPerSample; - if (!bitpos2.IsValid()) - return false; - uint32_t sample1 = - GetBits32(pSampleData, bitpos2.ValueOrDie(), m_nBitsPerSample); - encoded += - (encoded_input[i] - index[i]) * ((float)sample1 - (float)sample); - } - } - results[j] = - PDF_Interpolate(encoded, 0, (float)m_SampleMax, - m_DecodeInfo[j].decode_min, m_DecodeInfo[j].decode_max); - } - return true; -} - -CPDF_ExpIntFunc::CPDF_ExpIntFunc() - : CPDF_Function(Type::kType2ExpotentialInterpolation), - m_pBeginValues(nullptr), - m_pEndValues(nullptr) {} - -CPDF_ExpIntFunc::~CPDF_ExpIntFunc() { - FX_Free(m_pBeginValues); - FX_Free(m_pEndValues); -} - -bool CPDF_ExpIntFunc::v_Init(CPDF_Object* pObj) { - CPDF_Dictionary* pDict = pObj->GetDict(); - if (!pDict) - return false; - - CPDF_Array* pArray0 = pDict->GetArrayFor("C0"); - if (m_nOutputs == 0) { - m_nOutputs = 1; - if (pArray0) - m_nOutputs = pArray0->GetCount(); - } - - CPDF_Array* pArray1 = pDict->GetArrayFor("C1"); - m_pBeginValues = FX_Alloc2D(float, m_nOutputs, 2); - m_pEndValues = FX_Alloc2D(float, m_nOutputs, 2); - for (uint32_t i = 0; i < m_nOutputs; i++) { - m_pBeginValues[i] = pArray0 ? pArray0->GetFloatAt(i) : 0.0f; - m_pEndValues[i] = pArray1 ? pArray1->GetFloatAt(i) : 1.0f; - } - - m_Exponent = pDict->GetFloatFor("N"); - m_nOrigOutputs = m_nOutputs; - if (m_nOutputs && m_nInputs > INT_MAX / m_nOutputs) - return false; - - m_nOutputs *= m_nInputs; - return true; -} - -bool CPDF_ExpIntFunc::v_Call(float* inputs, float* results) const { - for (uint32_t i = 0; i < m_nInputs; i++) - for (uint32_t j = 0; j < m_nOrigOutputs; j++) { - results[i * m_nOrigOutputs + j] = - m_pBeginValues[j] + - FXSYS_pow(inputs[i], m_Exponent) * - (m_pEndValues[j] - m_pBeginValues[j]); - } - return true; -} - -CPDF_StitchFunc::CPDF_StitchFunc() - : CPDF_Function(Type::kType3Stitching), - m_pBounds(nullptr), - m_pEncode(nullptr) {} - -CPDF_StitchFunc::~CPDF_StitchFunc() { - FX_Free(m_pBounds); - FX_Free(m_pEncode); -} - -bool CPDF_StitchFunc::v_Init(CPDF_Object* pObj) { - CPDF_Dictionary* pDict = pObj->GetDict(); - if (!pDict) { - return false; - } - if (m_nInputs != kRequiredNumInputs) { - return false; - } - CPDF_Array* pArray = pDict->GetArrayFor("Functions"); - if (!pArray) { - return false; - } - uint32_t nSubs = pArray->GetCount(); - if (nSubs == 0) - return false; - m_nOutputs = 0; - for (uint32_t i = 0; i < nSubs; i++) { - CPDF_Object* pSub = pArray->GetDirectObjectAt(i); - if (pSub == pObj) - return false; - std::unique_ptr<CPDF_Function> pFunc(CPDF_Function::Load(pSub)); - if (!pFunc) - return false; - // Check that the input dimensionality is 1, and that all output - // dimensionalities are the same. - if (pFunc->CountInputs() != kRequiredNumInputs) - return false; - if (pFunc->CountOutputs() != m_nOutputs) { - if (m_nOutputs) - return false; - - m_nOutputs = pFunc->CountOutputs(); - } - - m_pSubFunctions.push_back(std::move(pFunc)); - } - m_pBounds = FX_Alloc(float, nSubs + 1); - m_pBounds[0] = m_pDomains[0]; - pArray = pDict->GetArrayFor("Bounds"); - if (!pArray) - return false; - for (uint32_t i = 0; i < nSubs - 1; i++) - m_pBounds[i + 1] = pArray->GetFloatAt(i); - m_pBounds[nSubs] = m_pDomains[1]; - m_pEncode = FX_Alloc2D(float, nSubs, 2); - pArray = pDict->GetArrayFor("Encode"); - if (!pArray) - return false; - - for (uint32_t i = 0; i < nSubs * 2; i++) - m_pEncode[i] = pArray->GetFloatAt(i); - return true; -} - -bool CPDF_StitchFunc::v_Call(float* inputs, float* outputs) const { - float input = inputs[0]; - size_t i; - for (i = 0; i < m_pSubFunctions.size() - 1; i++) { - if (input < m_pBounds[i + 1]) - break; - } - input = PDF_Interpolate(input, m_pBounds[i], m_pBounds[i + 1], - m_pEncode[i * 2], m_pEncode[i * 2 + 1]); - int nresults; - m_pSubFunctions[i]->Call(&input, kRequiredNumInputs, outputs, &nresults); - return true; -} - -// static -std::unique_ptr<CPDF_Function> CPDF_Function::Load(CPDF_Object* pFuncObj) { - std::unique_ptr<CPDF_Function> pFunc; - if (!pFuncObj) - return pFunc; - - int iType = -1; - if (CPDF_Stream* pStream = pFuncObj->AsStream()) - iType = pStream->GetDict()->GetIntegerFor("FunctionType"); - else if (CPDF_Dictionary* pDict = pFuncObj->AsDictionary()) - iType = pDict->GetIntegerFor("FunctionType"); - - Type type = IntegerToFunctionType(iType); - if (type == Type::kType0Sampled) - pFunc = pdfium::MakeUnique<CPDF_SampledFunc>(); - else if (type == Type::kType2ExpotentialInterpolation) - pFunc = pdfium::MakeUnique<CPDF_ExpIntFunc>(); - else if (type == Type::kType3Stitching) - pFunc = pdfium::MakeUnique<CPDF_StitchFunc>(); - else if (type == Type::kType4PostScript) - pFunc = pdfium::MakeUnique<CPDF_PSFunc>(); - - if (!pFunc || !pFunc->Init(pFuncObj)) - return nullptr; - - return pFunc; -} - -// static -CPDF_Function::Type CPDF_Function::IntegerToFunctionType(int iType) { - switch (iType) { - case 0: - case 2: - case 3: - case 4: - return static_cast<Type>(iType); - default: - return Type::kTypeInvalid; - } -} - -CPDF_Function::CPDF_Function(Type type) - : m_pDomains(nullptr), m_pRanges(nullptr), m_Type(type) {} - -CPDF_Function::~CPDF_Function() { - FX_Free(m_pDomains); - FX_Free(m_pRanges); -} - -bool CPDF_Function::Init(CPDF_Object* pObj) { - CPDF_Stream* pStream = pObj->AsStream(); - CPDF_Dictionary* pDict = pStream ? pStream->GetDict() : pObj->AsDictionary(); - - CPDF_Array* pDomains = pDict->GetArrayFor("Domain"); - if (!pDomains) - return false; - - m_nInputs = pDomains->GetCount() / 2; - if (m_nInputs == 0) - return false; - - m_pDomains = FX_Alloc2D(float, m_nInputs, 2); - for (uint32_t i = 0; i < m_nInputs * 2; i++) { - m_pDomains[i] = pDomains->GetFloatAt(i); - } - CPDF_Array* pRanges = pDict->GetArrayFor("Range"); - m_nOutputs = 0; - if (pRanges) { - m_nOutputs = pRanges->GetCount() / 2; - m_pRanges = FX_Alloc2D(float, m_nOutputs, 2); - for (uint32_t i = 0; i < m_nOutputs * 2; i++) - m_pRanges[i] = pRanges->GetFloatAt(i); - } - uint32_t old_outputs = m_nOutputs; - if (!v_Init(pObj)) - return false; - if (m_pRanges && m_nOutputs > old_outputs) { - m_pRanges = FX_Realloc(float, m_pRanges, m_nOutputs * 2); - if (m_pRanges) { - memset(m_pRanges + (old_outputs * 2), 0, - sizeof(float) * (m_nOutputs - old_outputs) * 2); - } - } - return true; -} - -bool CPDF_Function::Call(float* inputs, - uint32_t ninputs, - float* results, - int* nresults) const { - if (m_nInputs != ninputs) - return false; - - *nresults = m_nOutputs; - for (uint32_t i = 0; i < m_nInputs; i++) { - inputs[i] = - pdfium::clamp(inputs[i], m_pDomains[i * 2], m_pDomains[i * 2 + 1]); - } - v_Call(inputs, results); - if (!m_pRanges) - return true; - - for (uint32_t i = 0; i < m_nOutputs; i++) { - results[i] = - pdfium::clamp(results[i], m_pRanges[i * 2], m_pRanges[i * 2 + 1]); - } - return true; -} - -const CPDF_SampledFunc* CPDF_Function::ToSampledFunc() const { - return m_Type == Type::kType0Sampled - ? static_cast<const CPDF_SampledFunc*>(this) - : nullptr; -} - -const CPDF_ExpIntFunc* CPDF_Function::ToExpIntFunc() const { - return m_Type == Type::kType2ExpotentialInterpolation - ? static_cast<const CPDF_ExpIntFunc*>(this) - : nullptr; -} - -const CPDF_StitchFunc* CPDF_Function::ToStitchFunc() const { - return m_Type == Type::kType3Stitching - ? static_cast<const CPDF_StitchFunc*>(this) - : nullptr; -} diff --git a/core/fpdfapi/page/pageint.h b/core/fpdfapi/page/pageint.h deleted file mode 100644 index 45ca671673..0000000000 --- a/core/fpdfapi/page/pageint.h +++ /dev/null @@ -1,213 +0,0 @@ -// Copyright 2014 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_PAGEINT_H_ -#define CORE_FPDFAPI_PAGE_PAGEINT_H_ - -#include <memory> -#include <vector> - -#include "core/fpdfapi/page/cpdf_colorspace.h" -#include "core/fpdfapi/page/cpdf_countedobject.h" -#include "core/fpdfapi/parser/cpdf_stream_acc.h" -#include "core/fxcrt/cfx_retain_ptr.h" - -class CPDF_ExpIntFunc; -class CPDF_Pattern; -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]; } - - 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; -}; - -class CPDF_ExpIntFunc : public CPDF_Function { - public: - CPDF_ExpIntFunc(); - ~CPDF_ExpIntFunc() override; - - // CPDF_Function - bool v_Init(CPDF_Object* pObj) override; - bool v_Call(float* inputs, float* results) const override; - - uint32_t m_nOrigOutputs; - float m_Exponent; - float* m_pBeginValues; - float* m_pEndValues; -}; - -class CPDF_SampledFunc : public CPDF_Function { - public: - struct SampleEncodeInfo { - float encode_max; - float encode_min; - uint32_t sizes; - }; - - struct SampleDecodeInfo { - float decode_max; - float decode_min; - }; - - CPDF_SampledFunc(); - ~CPDF_SampledFunc() override; - - // CPDF_Function - bool v_Init(CPDF_Object* pObj) override; - bool v_Call(float* inputs, float* results) const override; - - const std::vector<SampleEncodeInfo>& GetEncodeInfo() const { - return m_EncodeInfo; - } - uint32_t GetBitsPerSample() const { return m_nBitsPerSample; } - CFX_RetainPtr<CPDF_StreamAcc> GetSampleStream() const { - return m_pSampleStream; - } - - private: - std::vector<SampleEncodeInfo> m_EncodeInfo; - std::vector<SampleDecodeInfo> m_DecodeInfo; - uint32_t m_nBitsPerSample; - uint32_t m_SampleMax; - CFX_RetainPtr<CPDF_StreamAcc> m_pSampleStream; -}; - -class CPDF_StitchFunc : public CPDF_Function { - public: - CPDF_StitchFunc(); - ~CPDF_StitchFunc() override; - - // CPDF_Function - bool v_Init(CPDF_Object* pObj) override; - bool v_Call(float* inputs, float* results) const override; - - const std::vector<std::unique_ptr<CPDF_Function>>& GetSubFunctions() const { - return m_pSubFunctions; - } - float GetBound(size_t i) const { return m_pBounds[i]; } - - private: - std::vector<std::unique_ptr<CPDF_Function>> m_pSubFunctions; - float* m_pBounds; - float* m_pEncode; - - static const uint32_t kRequiredNumInputs = 1; -}; - -class CPDF_IccProfile : public CFX_Retainable { - public: - template <typename T, typename... Args> - friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args); - - CPDF_Stream* GetStream() const { return m_pStream; } - bool IsValid() const { return IsSRGB() || IsSupported(); } - bool IsSRGB() const { return m_bsRGB; } - bool IsSupported() const { return !!m_pTransform; } - void* transform() { return m_pTransform; } - uint32_t GetComponents() const { return m_nSrcComponents; } - - private: - CPDF_IccProfile(CPDF_Stream* pStream, const uint8_t* pData, uint32_t dwSize); - ~CPDF_IccProfile() override; - - const bool m_bsRGB; - CPDF_Stream* const m_pStream; - void* m_pTransform = nullptr; - uint32_t m_nSrcComponents = 0; -}; - -class CPDF_DeviceCS : public CPDF_ColorSpace { - public: - explicit CPDF_DeviceCS(int family); - ~CPDF_DeviceCS() override; - - // CPDF_ColorSpace: - bool GetRGB(float* pBuf, float* R, float* G, float* B) const override; - bool SetRGB(float* pBuf, float R, float G, float B) const override; - bool v_GetCMYK(float* pBuf, - float* c, - float* m, - float* y, - float* k) const override; - bool v_SetCMYK(float* pBuf, - float c, - float m, - float y, - float k) const override; - void TranslateImageLine(uint8_t* pDestBuf, - const uint8_t* pSrcBuf, - int pixels, - int image_width, - int image_height, - bool bTransMask) const override; -}; - -class CPDF_PatternCS : public CPDF_ColorSpace { - public: - explicit CPDF_PatternCS(CPDF_Document* pDoc); - ~CPDF_PatternCS() override; - - // CPDF_ColorSpace: - bool v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) override; - bool GetRGB(float* pBuf, float* R, float* G, float* B) const override; - CPDF_ColorSpace* GetBaseCS() const override; - - private: - CPDF_ColorSpace* m_pBaseCS; - CPDF_CountedColorSpace* m_pCountedBaseCS; -}; - -#define MAX_PATTERN_COLORCOMPS 16 -struct PatternValue { - CPDF_Pattern* m_pPattern; - CPDF_CountedPattern* m_pCountedPattern; - int m_nComps; - float m_Comps[MAX_PATTERN_COLORCOMPS]; -}; - -CFX_ByteStringC PDF_FindKeyAbbreviationForTesting(const CFX_ByteStringC& abbr); -CFX_ByteStringC PDF_FindValueAbbreviationForTesting( - const CFX_ByteStringC& abbr); - -#endif // CORE_FPDFAPI_PAGE_PAGEINT_H_ diff --git a/core/fpdfapi/parser/cpdf_document.cpp b/core/fpdfapi/parser/cpdf_document.cpp index 73d3081a9f..1fdd59e615 100644 --- a/core/fpdfapi/parser/cpdf_document.cpp +++ b/core/fpdfapi/parser/cpdf_document.cpp @@ -14,8 +14,8 @@ #include "core/fpdfapi/cpdf_modulemgr.h" #include "core/fpdfapi/font/cpdf_fontencoding.h" #include "core/fpdfapi/page/cpdf_docpagedata.h" +#include "core/fpdfapi/page/cpdf_iccprofile.h" #include "core/fpdfapi/page/cpdf_pagemodule.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_linearized_header.h" diff --git a/core/fpdfapi/render/cpdf_docrenderdata.cpp b/core/fpdfapi/render/cpdf_docrenderdata.cpp index d03824b59e..bf277f03f8 100644 --- a/core/fpdfapi/render/cpdf_docrenderdata.cpp +++ b/core/fpdfapi/render/cpdf_docrenderdata.cpp @@ -9,7 +9,7 @@ #include <memory> #include "core/fpdfapi/font/cpdf_type3font.h" -#include "core/fpdfapi/page/pageint.h" +#include "core/fpdfapi/page/cpdf_function.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_document.h" #include "core/fpdfapi/render/cpdf_dibsource.h" diff --git a/core/fpdfapi/render/cpdf_renderstatus.cpp b/core/fpdfapi/render/cpdf_renderstatus.cpp index 9170ae9daf..1d2218c166 100644 --- a/core/fpdfapi/render/cpdf_renderstatus.cpp +++ b/core/fpdfapi/render/cpdf_renderstatus.cpp @@ -17,6 +17,7 @@ #include "core/fpdfapi/page/cpdf_docpagedata.h" #include "core/fpdfapi/page/cpdf_form.h" #include "core/fpdfapi/page/cpdf_formobject.h" +#include "core/fpdfapi/page/cpdf_function.h" #include "core/fpdfapi/page/cpdf_graphicstates.h" #include "core/fpdfapi/page/cpdf_image.h" #include "core/fpdfapi/page/cpdf_imageobject.h" @@ -28,7 +29,6 @@ #include "core/fpdfapi/page/cpdf_shadingpattern.h" #include "core/fpdfapi/page/cpdf_textobject.h" #include "core/fpdfapi/page/cpdf_tilingpattern.h" -#include "core/fpdfapi/page/pageint.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_document.h" diff --git a/core/fxge/skia/fx_skia_device.cpp b/core/fxge/skia/fx_skia_device.cpp index a1193fbe9b..7d91ab2b72 100644 --- a/core/fxge/skia/fx_skia_device.cpp +++ b/core/fxge/skia/fx_skia_device.cpp @@ -6,9 +6,12 @@ #include <utility> #include <vector> +#include "core/fpdfapi/page/cpdf_expintfunc.h" +#include "core/fpdfapi/page/cpdf_function.h" #include "core/fpdfapi/page/cpdf_meshstream.h" +#include "core/fpdfapi/page/cpdf_sampledfunc.h" #include "core/fpdfapi/page/cpdf_shadingpattern.h" -#include "core/fpdfapi/page/pageint.h" +#include "core/fpdfapi/page/cpdf_stitchfunc.h" #include "core/fpdfapi/parser/cpdf_array.h" #include "core/fpdfapi/parser/cpdf_dictionary.h" #include "core/fpdfapi/parser/cpdf_stream_acc.h" |