Make StateData private

core/fpdfapi/fpdf_page/cpdf_generalstate.cpp

 // 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/fpdf_page/include/cpdf_generalstate.h"
 
+#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
+#include "core/fpdfapi/fpdf_render/render_int.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;
 }
 
+static int GetBlendTypeInternal(const CFX_ByteStringC& 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() {}
 
+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;
+}
+
+int CPDF_GeneralState::GetFillAlpha() const {
+  const StateData* pData = m_Ref.GetObject();
+  return pData ? FXSYS_round(255 * pData->m_FillAlpha) : 255;
+}
+
+int CPDF_GeneralState::GetStrokeAlpha() const {
+  const StateData* pData = m_Ref.GetObject();
+  return pData ? FXSYS_round(255 * pData->m_StrokeAlpha) : 255;
+}
+
+void CPDF_GeneralState::SetSoftMask(CPDF_Object* pObject) {
+  m_Ref.GetPrivateCopy()->m_pSoftMask = pObject;
+}
+
+CPDF_Object* CPDF_GeneralState::GetSoftMask() const {
+  const StateData* pData = m_Ref.GetObject();
+  return pData ? pData->m_pSoftMask : nullptr;
+}
+
+void CPDF_GeneralState::SetTR(CPDF_Object* pObject) {
+  m_Ref.GetPrivateCopy()->m_pTR = pObject;
+}
+
+CPDF_Object* CPDF_GeneralState::GetTR() const {
+  return m_Ref.GetObject()->m_pTR;
+}
+
+void CPDF_GeneralState::SetTransferFunc(CPDF_TransferFunc* pFunc) {
+  m_Ref.GetPrivateCopy()->m_pTransferFunc = pFunc;
+}
+
+CPDF_TransferFunc* CPDF_GeneralState::GetTransferFunc() const {
+  return m_Ref.GetObject()->m_pTransferFunc;
+}
+
+void CPDF_GeneralState::SetBlendMode(const CFX_ByteStringC& mode) {
+  m_Ref.GetPrivateCopy()->SetBlendMode(mode);
+}
+
+const FX_FLOAT* CPDF_GeneralState::GetSMaskMatrix() const {
+  return m_Ref.GetObject()->m_SMaskMatrix;
+}
+
+FX_FLOAT* CPDF_GeneralState::GetMutableSMaskMatrix() {
+  return m_Ref.GetPrivateCopy()->m_SMaskMatrix;
+}
+
+void CPDF_GeneralState::SetStrokeAlpha(FX_FLOAT alpha) {
+  m_Ref.GetPrivateCopy()->m_StrokeAlpha = alpha;
+}
+
+void CPDF_GeneralState::SetFillAlpha(FX_FLOAT alpha) {
+  m_Ref.GetPrivateCopy()->m_FillAlpha = alpha;
+}
+
+void CPDF_GeneralState::SetFillOP(int op) {
+  m_Ref.GetPrivateCopy()->m_FillOP = op;
+}
+
+int CPDF_GeneralState::GetFillOP() const {
+  return m_Ref.GetObject()->m_FillOP;
+}
+
+void CPDF_GeneralState::SetStrokeOP(int op) {
+  m_Ref.GetPrivateCopy()->m_StrokeOP = op;
+}
+
+int CPDF_GeneralState::GetStrokeOP() const {
+  return m_Ref.GetObject()->m_StrokeOP;
+}
+
+void CPDF_GeneralState::SetOPMode(int mode) {
+  m_Ref.GetPrivateCopy()->m_OPMode = mode;
+}
+
+int CPDF_GeneralState::GetOPMode() const {
+  return m_Ref.GetObject()->m_OPMode;
+}
+
+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(FX_FLOAT flatness) {
+  m_Ref.GetPrivateCopy()->m_Flatness = flatness;
+}
+
+void CPDF_GeneralState::SetSmoothness(FX_FLOAT smoothness) {
+  m_Ref.GetPrivateCopy()->m_Smoothness = smoothness;
+}
+
+void CPDF_GeneralState::SetStrokeAdjust(FX_FLOAT adjust) {
+  m_Ref.GetPrivateCopy()->m_StrokeAdjust = adjust;
+}
+
+FX_FLOAT CPDF_GeneralState::GetStrokeAdjust() const {
+  return m_Ref.GetObject()->m_StrokeAdjust;
+}
+
+void CPDF_GeneralState::SetAlphaSource(int source) {
+  m_Ref.GetPrivateCopy()->m_AlphaSource = source;
+}
+
+void CPDF_GeneralState::SetTextKnockout(int 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;
+}
+
 void CPDF_GeneralState::SetRenderIntent(const CFX_ByteString& ri) {
   m_Ref.GetPrivateCopy()->m_RenderIntent = RI_StringToId(ri);
 }
+
+CPDF_GeneralState::StateData::StateData() {
+  FXSYS_memset(this, 0, sizeof(CPDF_GeneralState::StateData));
+  FXSYS_strcpy((FX_CHAR*)m_BlendMode, "Normal");

[dsinclair, 2016/09/01 14:17:09]

static_cast

[Tom Sepez, 2016/09/01 22:26:31]

rewrote to use bytstrings

+  m_StrokeAlpha = 1.0f;
+  m_FillAlpha = 1.0f;
+  m_Flatness = 1.0f;
+  m_Matrix.SetIdentity();
+}
+
+CPDF_GeneralState::StateData::StateData(
+    const CPDF_GeneralState::StateData& src) {
+  FXSYS_memcpy(this, &src, sizeof(CPDF_GeneralState::StateData));
+  if (src.m_pTransferFunc && src.m_pTransferFunc->m_pPDFDoc) {

[dsinclair, 2016/09/01 14:17:09]

invert and early return?

[Tom Sepez, 2016/09/01 22:26:31]

Nah, but invert inner if.

+    CPDF_DocRenderData* pDocCache =
+        src.m_pTransferFunc->m_pPDFDoc->GetRenderData();
+    if (!pDocCache)
+      return;
+
+    m_pTransferFunc = pDocCache->GetTransferFunc(m_pTR);
+  }
+}
+
+CPDF_GeneralState::StateData::~StateData() {
+  if (m_pTransferFunc && m_pTransferFunc->m_pPDFDoc) {

[dsinclair, 2016/09/01 14:17:09]

early return

[Tom Sepez, 2016/09/01 22:26:31]

Same.

+    CPDF_DocRenderData* pDocCache = m_pTransferFunc->m_pPDFDoc->GetRenderData();
+    if (!pDocCache)
+      return;
+
+    pDocCache->ReleaseTransferFunc(m_pTR);
+  }
+}
+
+void CPDF_GeneralState::StateData::SetBlendMode(
+    const CFX_ByteStringC& blend_mode) {
+  if (blend_mode.GetLength() > 15) {
+    return;
+  }

[dsinclair, 2016/09/01 14:17:09]

nit {}'s

[Tom Sepez, 2016/09/01 22:26:31]

No longer exists.

+  FXSYS_memcpy(m_BlendMode, blend_mode.raw_str(), blend_mode.GetLength());
+  m_BlendMode[blend_mode.GetLength()] = 0;
+  m_BlendType = GetBlendTypeInternal(blend_mode);
+}