// Copyright 2016 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #include "core/fpdfapi/page/cpdf_generalstate.h" #include "core/fpdfapi/parser/cpdf_document.h" #include "core/fpdfapi/render/cpdf_dibsource.h" #include "core/fpdfapi/render/cpdf_docrenderdata.h" #include "core/fpdfapi/render/cpdf_transferfunc.h" namespace { int RI_StringToId(const CFX_ByteString& ri) { uint32_t id = ri.GetID(); if (id == FXBSTR_ID('A', 'b', 's', 'o')) return 1; if (id == FXBSTR_ID('S', 'a', 't', 'u')) return 2; if (id == FXBSTR_ID('P', 'e', 'r', 'c')) return 3; return 0; } int GetBlendTypeInternal(const CFX_ByteString& mode) { switch (mode.GetID()) { case FXBSTR_ID('N', 'o', 'r', 'm'): case FXBSTR_ID('C', 'o', 'm', 'p'): return FXDIB_BLEND_NORMAL; case FXBSTR_ID('M', 'u', 'l', 't'): return FXDIB_BLEND_MULTIPLY; case FXBSTR_ID('S', 'c', 'r', 'e'): return FXDIB_BLEND_SCREEN; case FXBSTR_ID('O', 'v', 'e', 'r'): return FXDIB_BLEND_OVERLAY; case FXBSTR_ID('D', 'a', 'r', 'k'): return FXDIB_BLEND_DARKEN; case FXBSTR_ID('L', 'i', 'g', 'h'): return FXDIB_BLEND_LIGHTEN; case FXBSTR_ID('C', 'o', 'l', 'o'): if (mode.GetLength() == 10) return FXDIB_BLEND_COLORDODGE; if (mode.GetLength() == 9) return FXDIB_BLEND_COLORBURN; return FXDIB_BLEND_COLOR; case FXBSTR_ID('H', 'a', 'r', 'd'): return FXDIB_BLEND_HARDLIGHT; case FXBSTR_ID('S', 'o', 'f', 't'): return FXDIB_BLEND_SOFTLIGHT; case FXBSTR_ID('D', 'i', 'f', 'f'): return FXDIB_BLEND_DIFFERENCE; case FXBSTR_ID('E', 'x', 'c', 'l'): return FXDIB_BLEND_EXCLUSION; case FXBSTR_ID('H', 'u', 'e', 0): return FXDIB_BLEND_HUE; case FXBSTR_ID('S', 'a', 't', 'u'): return FXDIB_BLEND_SATURATION; case FXBSTR_ID('L', 'u', 'm', 'i'): return FXDIB_BLEND_LUMINOSITY; } return FXDIB_BLEND_NORMAL; } } // namespace CPDF_GeneralState::CPDF_GeneralState() {} CPDF_GeneralState::CPDF_GeneralState(const CPDF_GeneralState& that) : m_Ref(that.m_Ref) {} CPDF_GeneralState::~CPDF_GeneralState() {} void CPDF_GeneralState::SetRenderIntent(const CFX_ByteString& ri) { m_Ref.GetPrivateCopy()->m_RenderIntent = RI_StringToId(ri); } int CPDF_GeneralState::GetBlendType() const { const StateData* pData = m_Ref.GetObject(); return pData ? pData->m_BlendType : FXDIB_BLEND_NORMAL; } void CPDF_GeneralState::SetBlendType(int type) { m_Ref.GetPrivateCopy()->m_BlendType = type; } float CPDF_GeneralState::GetFillAlpha() const { const StateData* pData = m_Ref.GetObject(); return pData ? pData->m_FillAlpha : 1.0f; } void CPDF_GeneralState::SetFillAlpha(float alpha) { m_Ref.GetPrivateCopy()->m_FillAlpha = alpha; } float CPDF_GeneralState::GetStrokeAlpha() const { const StateData* pData = m_Ref.GetObject(); return pData ? pData->m_StrokeAlpha : 1.0f; } void CPDF_GeneralState::SetStrokeAlpha(float alpha) { m_Ref.GetPrivateCopy()->m_StrokeAlpha = alpha; } CPDF_Object* CPDF_GeneralState::GetSoftMask() const { const StateData* pData = m_Ref.GetObject(); return pData ? pData->m_pSoftMask : nullptr; } void CPDF_GeneralState::SetSoftMask(CPDF_Object* pObject) { m_Ref.GetPrivateCopy()->m_pSoftMask = pObject; } CPDF_Object* CPDF_GeneralState::GetTR() const { const StateData* pData = m_Ref.GetObject(); return pData ? pData->m_pTR : nullptr; } void CPDF_GeneralState::SetTR(CPDF_Object* pObject) { m_Ref.GetPrivateCopy()->m_pTR = pObject; } CFX_RetainPtr<CPDF_TransferFunc> CPDF_GeneralState::GetTransferFunc() const { const StateData* pData = m_Ref.GetObject(); return pData ? pData->m_pTransferFunc : nullptr; } void CPDF_GeneralState::SetTransferFunc( const CFX_RetainPtr<CPDF_TransferFunc>& pFunc) { m_Ref.GetPrivateCopy()->m_pTransferFunc = pFunc; } void CPDF_GeneralState::SetBlendMode(const CFX_ByteString& mode) { StateData* pData = m_Ref.GetPrivateCopy(); pData->m_BlendMode = mode; pData->m_BlendType = GetBlendTypeInternal(mode); } const CFX_Matrix* CPDF_GeneralState::GetSMaskMatrix() const { const StateData* pData = m_Ref.GetObject(); return pData ? &pData->m_SMaskMatrix : nullptr; } void CPDF_GeneralState::SetSMaskMatrix(const CFX_Matrix& matrix) { m_Ref.GetPrivateCopy()->m_SMaskMatrix = matrix; } bool CPDF_GeneralState::GetFillOP() const { const StateData* pData = m_Ref.GetObject(); return pData && pData->m_FillOP; } void CPDF_GeneralState::SetFillOP(bool op) { m_Ref.GetPrivateCopy()->m_FillOP = op; } void CPDF_GeneralState::SetStrokeOP(bool op) { m_Ref.GetPrivateCopy()->m_StrokeOP = op; } bool CPDF_GeneralState::GetStrokeOP() const { const StateData* pData = m_Ref.GetObject(); return pData && pData->m_StrokeOP; } int CPDF_GeneralState::GetOPMode() const { return m_Ref.GetObject()->m_OPMode; } void CPDF_GeneralState::SetOPMode(int mode) { m_Ref.GetPrivateCopy()->m_OPMode = mode; } void CPDF_GeneralState::SetBG(CPDF_Object* pObject) { m_Ref.GetPrivateCopy()->m_pBG = pObject; } void CPDF_GeneralState::SetUCR(CPDF_Object* pObject) { m_Ref.GetPrivateCopy()->m_pUCR = pObject; } void CPDF_GeneralState::SetHT(CPDF_Object* pObject) { m_Ref.GetPrivateCopy()->m_pHT = pObject; } void CPDF_GeneralState::SetFlatness(float flatness) { m_Ref.GetPrivateCopy()->m_Flatness = flatness; } void CPDF_GeneralState::SetSmoothness(float smoothness) { m_Ref.GetPrivateCopy()->m_Smoothness = smoothness; } bool CPDF_GeneralState::GetStrokeAdjust() const { const StateData* pData = m_Ref.GetObject(); return pData && pData->m_StrokeAdjust; } void CPDF_GeneralState::SetStrokeAdjust(bool adjust) { m_Ref.GetPrivateCopy()->m_StrokeAdjust = adjust; } void CPDF_GeneralState::SetAlphaSource(bool source) { m_Ref.GetPrivateCopy()->m_AlphaSource = source; } void CPDF_GeneralState::SetTextKnockout(bool knockout) { m_Ref.GetPrivateCopy()->m_TextKnockout = knockout; } void CPDF_GeneralState::SetMatrix(const CFX_Matrix& matrix) { m_Ref.GetPrivateCopy()->m_Matrix = matrix; } CFX_Matrix* CPDF_GeneralState::GetMutableMatrix() { return &m_Ref.GetPrivateCopy()->m_Matrix; } CPDF_GeneralState::StateData::StateData() : m_BlendMode("Normal"), m_BlendType(0), m_pSoftMask(nullptr), m_StrokeAlpha(1.0), m_FillAlpha(1.0f), m_pTR(nullptr), m_pTransferFunc(nullptr), m_RenderIntent(0), m_StrokeAdjust(false), m_AlphaSource(false), m_TextKnockout(false), m_StrokeOP(false), m_FillOP(false), m_OPMode(0), m_pBG(nullptr), m_pUCR(nullptr), m_pHT(nullptr), m_Flatness(1.0f), m_Smoothness(0.0f) { m_SMaskMatrix.SetIdentity(); m_Matrix.SetIdentity(); } CPDF_GeneralState::StateData::StateData(const StateData& that) : m_BlendMode(that.m_BlendMode), m_BlendType(that.m_BlendType), m_pSoftMask(that.m_pSoftMask), m_StrokeAlpha(that.m_StrokeAlpha), m_FillAlpha(that.m_FillAlpha), m_pTR(that.m_pTR), m_pTransferFunc(that.m_pTransferFunc), m_RenderIntent(that.m_RenderIntent), m_StrokeAdjust(that.m_StrokeAdjust), m_AlphaSource(that.m_AlphaSource), m_TextKnockout(that.m_TextKnockout), m_StrokeOP(that.m_StrokeOP), m_FillOP(that.m_FillOP), m_OPMode(that.m_OPMode), m_pBG(that.m_pBG), m_pUCR(that.m_pUCR), m_pHT(that.m_pHT), m_Flatness(that.m_Flatness), m_Smoothness(that.m_Smoothness) { m_Matrix = that.m_Matrix; m_SMaskMatrix = that.m_SMaskMatrix; if (that.m_pTransferFunc && that.m_pTransferFunc->m_pPDFDoc) { CPDF_DocRenderData* pDocCache = that.m_pTransferFunc->m_pPDFDoc->GetRenderData(); if (pDocCache) m_pTransferFunc = pDocCache->GetTransferFunc(m_pTR); } } CPDF_GeneralState::StateData::~StateData() { if (m_pTransferFunc && m_pTransferFunc->m_pPDFDoc) { CPDF_DocRenderData* pDocCache = m_pTransferFunc->m_pPDFDoc->GetRenderData(); if (pDocCache) { m_pTransferFunc.Reset(); // Give up our reference first. pDocCache->MaybePurgeTransferFunc(m_pTR); } } }