From 5b4f57cdc0a279bd9b8e03b8f5714b9d39e642a8 Mon Sep 17 00:00:00 2001 From: Tom Sepez Date: Wed, 15 Jul 2015 16:54:50 -0700 Subject: Make ContentStreamParser members private, fix constructor R=thestig@chromium.org Review URL: https://codereview.chromium.org/1219683007 . --- .../fpdfapi/fpdf_page/fpdf_page_graph_state.cpp | 7 +- core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp | 137 ++++++++++----------- .../src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp | 43 +++---- core/src/fpdfapi/fpdf_page/pageint.h | 112 ++++++++++------- 4 files changed, 162 insertions(+), 137 deletions(-) (limited to 'core/src') diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.cpp index 70d0743f58..b4d030e679 100644 --- a/core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.cpp +++ b/core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.cpp @@ -8,8 +8,9 @@ #include "../../../include/fpdfapi/fpdf_pageobj.h" #include "../../../include/fpdfapi/fpdf_module.h" #include "../../../include/fpdfapi/fpdf_render.h" -#include "pageint.h" #include "../fpdf_render/render_int.h" +#include "pageint.h" + void CPDF_GraphicStates::DefaultStates() { m_ColorState.New()->Default(); @@ -544,14 +545,14 @@ void CPDF_AllStates::ProcessExtGS(CPDF_Dictionary* pGS, CPDF_StreamContentParser } pGeneralState->SetBlendMode(mode); if (pGeneralState->m_BlendType > FXDIB_BLEND_MULTIPLY) { - pParser->m_pObjectList->m_bBackgroundAlphaNeeded = TRUE; + pParser->GetObjectList()->m_bBackgroundAlphaNeeded = TRUE; } break; } case FXBSTR_ID('S', 'M', 'a', 's'): if (pObject && pObject->GetType() == PDFOBJ_DICTIONARY) { pGeneralState->m_pSoftMask = pObject; - FXSYS_memcpy(pGeneralState->m_SMaskMatrix, &pParser->m_pCurStates->m_CTM, sizeof(CPDF_Matrix)); + FXSYS_memcpy(pGeneralState->m_SMaskMatrix, &pParser->GetCurStates()->m_CTM, sizeof(CPDF_Matrix)); } else { pGeneralState->m_pSoftMask = NULL; } diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp index fdc4a27989..5b5703b868 100644 --- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp +++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp @@ -8,80 +8,60 @@ #include "../../../include/fpdfapi/fpdf_module.h" #include "../../../include/fpdfapi/fpdf_serial.h" #include "pageint.h" + #define REQUIRE_PARAMS(count) if (m_ParamCount != count) { m_bAbort = TRUE; return; } -CPDF_StreamContentParser::CPDF_StreamContentParser() -{ - m_DefFontSize = 0; - m_pCurStates = NULL; - m_pLastTextObject = NULL; - m_pPathPoints = NULL; - m_PathClipType = 0; - m_PathPointCount = m_PathAllocSize = 0; - m_PathCurrentX = m_PathCurrentY = 0.0f; - m_bResourceMissing = FALSE; - m_bColored = FALSE; - FXSYS_memset(m_Type3Data, 0, sizeof(FX_FLOAT) * 6); - m_ParamCount = 0; - m_ParamStartPos = 0; - m_bAbort = FALSE; - m_pLastImageDict = NULL; - m_pLastCloneImageDict = NULL; - m_pLastImage = NULL; - m_bReleaseLastDict = TRUE; - m_pParentResources = NULL; -} -FX_BOOL CPDF_StreamContentParser::Initialize() -{ - return TRUE; -} -CPDF_StreamContentParser::~CPDF_StreamContentParser() -{ - ClearAllParams(); - int i = 0; - for (i = 0; i < m_StateStack.GetSize(); i ++) { - delete (CPDF_AllStates*)m_StateStack[i]; - } - if (m_pPathPoints) { - FX_Free(m_pPathPoints); - } - delete m_pCurStates; - if (m_pLastImageDict) { - m_pLastImageDict->Release(); - } - if (m_pLastCloneImageDict) { - m_pLastCloneImageDict->Release(); - } -} -void CPDF_StreamContentParser::PrepareParse(CPDF_Document* pDocument, - CPDF_Dictionary* pPageResources, CPDF_Dictionary* pParentResources, CFX_AffineMatrix* pmtContentToUser, CPDF_PageObjects* pObjList, - CPDF_Dictionary* pResources, CPDF_Rect* pBBox, CPDF_ParseOptions* pOptions, - CPDF_AllStates* pStates, int level) + +CPDF_StreamContentParser::CPDF_StreamContentParser( + CPDF_Document* pDocument, + CPDF_Dictionary* pPageResources, + CPDF_Dictionary* pParentResources, + CFX_AffineMatrix* pmtContentToUser, + CPDF_PageObjects* pObjList, + CPDF_Dictionary* pResources, + CPDF_Rect* pBBox, + CPDF_ParseOptions* pOptions, + CPDF_AllStates* pStates, + int level) + : m_pDocument(pDocument), + m_pPageResources(pPageResources), + m_pParentResources(pParentResources), + m_pResources(pResources), + m_pObjectList(pObjList), + m_Level(level), + m_ParamStartPos(0), + m_ParamCount(0), + m_bAbort(FALSE), + m_pCurStates(new CPDF_AllStates), + m_pLastTextObject(nullptr), + m_DefFontSize(0), + m_pPathPoints(nullptr), + m_PathPointCount(0), + m_PathAllocSize(0), + m_PathCurrentX(0.0f), + m_PathCurrentY(0.0f), + m_PathClipType(0), + m_pLastImage(nullptr), + m_pLastImageDict(nullptr), + m_pLastCloneImageDict(nullptr), + m_bReleaseLastDict(TRUE), + m_bColored(FALSE), + m_bResourceMissing(FALSE) { - for (int i = 0; i < 6; i ++) { - m_Type3Data[i] = 0; - } - m_pDocument = pDocument; - m_pPageResources = pPageResources; - m_pParentResources = pParentResources; if (pmtContentToUser) { m_mtContentToUser = *pmtContentToUser; } if (pOptions) { m_Options = *pOptions; } - m_pObjectList = pObjList; - m_pResources = pResources; - if (pResources == NULL) { + if (!m_pResources) { m_pResources = m_pParentResources; } - if (m_pResources == NULL) { - m_pResources = pPageResources; + if (!m_pResources) { + m_pResources = m_pPageResources; } if (pBBox) { m_BBox = *pBBox; } - m_Level = level; - m_pCurStates = new CPDF_AllStates; if (pStates) { m_pCurStates->Copy(*pStates); } else { @@ -90,6 +70,26 @@ void CPDF_StreamContentParser::PrepareParse(CPDF_Document* pDocument, m_pCurStates->m_TextState.New(); m_pCurStates->m_ColorState.New(); } + for (int i = 0; i < FX_ArraySize(m_Type3Data); ++i) { + m_Type3Data[i] = 0.0; + } +} + +CPDF_StreamContentParser::~CPDF_StreamContentParser() +{ + ClearAllParams(); + for (int i = 0; i < m_StateStack.GetSize(); ++i) { + delete (CPDF_AllStates*)m_StateStack[i]; + } + if (m_pPathPoints) { + FX_Free(m_pPathPoints); + } + if (m_pLastImageDict) { + m_pLastImageDict->Release(); + } + if (m_pLastCloneImageDict) { + m_pLastCloneImageDict->Release(); + } } int CPDF_StreamContentParser::GetNextParamPos() { @@ -241,10 +241,9 @@ void CPDF_StreamContentParser::SetGraphicStates(CPDF_PageObject* pObj, FX_BOOL b pObj->m_TextState = m_pCurStates->m_TextState; } } -const struct _OpCode { - FX_DWORD m_OpId; - void (CPDF_StreamContentParser::*m_OpHandler)(); -} g_OpCodes[] = { + +const CPDF_StreamContentParser::OpCode CPDF_StreamContentParser::g_OpCodes[] = +{ {FXBSTR_ID('"', 0, 0, 0), &CPDF_StreamContentParser::Handle_NextLineShowText_Space}, {FXBSTR_ID('\'', 0, 0, 0), &CPDF_StreamContentParser::Handle_NextLineShowText}, {FXBSTR_ID('B', 0, 0, 0), &CPDF_StreamContentParser::Handle_FillStrokePath}, @@ -331,7 +330,7 @@ FX_BOOL CPDF_StreamContentParser::OnOperator(const FX_CHAR* op) opid <<= 8; i ++; }; - int low = 0, high = sizeof g_OpCodes / sizeof(struct _OpCode) - 1; + int low = 0, high = sizeof g_OpCodes / sizeof(OpCode) - 1; while (low <= high) { int middle = (low + high) / 2; int compare = opid - g_OpCodes[middle].m_OpId; @@ -713,10 +712,10 @@ void CPDF_StreamContentParser::AddForm(CPDF_Stream* pStream) ClipPath.Transform(&form_matrix); form_bbox.Transform(&form_matrix); } - CPDF_StreamContentParser parser; - parser.Initialize(); - parser.PrepareParse(m_pDocument, m_pPageResources, m_pResources, &m_mtContentToUser, - m_pObjectList, pResources, &form_bbox, &m_Options, m_pCurStates, m_Level + 1); + CPDF_StreamContentParser parser( + m_pDocument, m_pPageResources, m_pResources, &m_mtContentToUser, + m_pObjectList, pResources, &form_bbox, &m_Options, + m_pCurStates.get(), m_Level + 1); parser.m_pCurStates->m_CTM = form_matrix; if (ClipPath.NotNull()) { parser.m_pCurStates->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING, TRUE); diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp index 3d12ee9c82..ebd4d83310 100644 --- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp +++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp @@ -997,17 +997,18 @@ void CPDF_ContentParser::Start(CPDF_Form* pForm, CPDF_AllStates* pGraphicStates, } } CPDF_Dictionary* pResources = pForm->m_pFormDict->GetDict(FX_BSTRC("Resources")); - m_pParser = new CPDF_StreamContentParser; - m_pParser->Initialize(); - m_pParser->PrepareParse(pForm->m_pDocument, pForm->m_pPageResources, pForm->m_pResources, pParentMatrix, pForm, - pResources, &form_bbox, pOptions, pGraphicStates, level); - m_pParser->m_pCurStates->m_CTM = form_matrix; - m_pParser->m_pCurStates->m_ParentMatrix = form_matrix; + m_pParser = new CPDF_StreamContentParser( + pForm->m_pDocument, pForm->m_pPageResources, pForm->m_pResources, + pParentMatrix, pForm, pResources, &form_bbox, pOptions, pGraphicStates, + level); + + m_pParser->GetCurStates()->m_CTM = form_matrix; + m_pParser->GetCurStates()->m_ParentMatrix = form_matrix; if (ClipPath.NotNull()) { - m_pParser->m_pCurStates->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING, TRUE); + m_pParser->GetCurStates()->m_ClipPath.AppendPath(ClipPath, FXFILL_WINDING, TRUE); } if (pForm->m_Transparency & PDFTRANS_GROUP) { - CPDF_GeneralStateData* pData = m_pParser->m_pCurStates->m_GeneralState.GetModify(); + CPDF_GeneralStateData* pData = m_pParser->GetCurStates()->m_GeneralState.GetModify(); pData->m_BlendType = FXDIB_BLEND_NORMAL; pData->m_StrokeAlpha = 1.0f; pData->m_FillAlpha = 1.0f; @@ -1068,18 +1069,18 @@ void CPDF_ContentParser::Continue(IFX_Pause* pPause) } } if (m_InternalStage == PAGEPARSE_STAGE_PARSE) { - if (m_pParser == NULL) { - m_pParser = new CPDF_StreamContentParser; - m_pParser->Initialize(); - m_pParser->PrepareParse(m_pObjects->m_pDocument, m_pObjects->m_pPageResources, NULL, NULL, m_pObjects, - m_pObjects->m_pResources, &m_pObjects->m_BBox, &m_Options, NULL, 0); - m_pParser->m_pCurStates->m_ColorState.GetModify()->Default(); + if (!m_pParser) { + m_pParser = new CPDF_StreamContentParser( + m_pObjects->m_pDocument, m_pObjects->m_pPageResources, + nullptr, nullptr, m_pObjects, m_pObjects->m_pResources, + &m_pObjects->m_BBox, &m_Options, nullptr, 0); + m_pParser->GetCurStates()->m_ColorState.GetModify()->Default(); } if (m_CurrentOffset >= m_Size) { m_InternalStage = PAGEPARSE_STAGE_CHECKCLIP; } else { m_CurrentOffset += m_pParser->Parse(m_pData + m_CurrentOffset, m_Size - m_CurrentOffset, PARSE_STEP_LIMIT); - if (m_pParser->m_bAbort) { + if (m_pParser->ShouldAbort()) { m_InternalStage = PAGEPARSE_STAGE_CHECKCLIP; continue; } @@ -1087,12 +1088,12 @@ void CPDF_ContentParser::Continue(IFX_Pause* pPause) } if (m_InternalStage == PAGEPARSE_STAGE_CHECKCLIP) { if (m_pType3Char) { - m_pType3Char->m_bColored = m_pParser->m_bColored; - m_pType3Char->m_Width = FXSYS_round(m_pParser->m_Type3Data[0] * 1000); - m_pType3Char->m_BBox.left = FXSYS_round(m_pParser->m_Type3Data[2] * 1000); - m_pType3Char->m_BBox.bottom = FXSYS_round(m_pParser->m_Type3Data[3] * 1000); - m_pType3Char->m_BBox.right = FXSYS_round(m_pParser->m_Type3Data[4] * 1000); - m_pType3Char->m_BBox.top = FXSYS_round(m_pParser->m_Type3Data[5] * 1000); + m_pType3Char->m_bColored = m_pParser->IsColored(); + m_pType3Char->m_Width = FXSYS_round(m_pParser->GetType3Data()[0] * 1000); + m_pType3Char->m_BBox.left = FXSYS_round(m_pParser->GetType3Data()[2] * 1000); + m_pType3Char->m_BBox.bottom = FXSYS_round(m_pParser->GetType3Data()[3] * 1000); + m_pType3Char->m_BBox.right = FXSYS_round(m_pParser->GetType3Data()[4] * 1000); + m_pType3Char->m_BBox.top = FXSYS_round(m_pParser->GetType3Data()[5] * 1000); } FX_POSITION pos = m_pObjects->m_ObjectList.GetHeadPosition(); while (pos) { diff --git a/core/src/fpdfapi/fpdf_page/pageint.h b/core/src/fpdfapi/fpdf_page/pageint.h index 95e16cb8cf..cf1fe47c0d 100644 --- a/core/src/fpdfapi/fpdf_page/pageint.h +++ b/core/src/fpdfapi/fpdf_page/pageint.h @@ -9,6 +9,7 @@ #include +#include "../../../../third_party/base/nonstd_unique_ptr.h" #include "../../../include/fpdfapi/fpdf_pageobj.h" #define PARSE_STEP_LIMIT 100 @@ -123,26 +124,25 @@ typedef struct { class CPDF_StreamContentParser { public: - CPDF_StreamContentParser(); + CPDF_StreamContentParser( + CPDF_Document* pDoc, + CPDF_Dictionary* pPageResources, + CPDF_Dictionary* pParentResources, + CFX_AffineMatrix* pmtContentToUser, + CPDF_PageObjects* pObjList, + CPDF_Dictionary* pResources, + CFX_FloatRect* pBBox, + CPDF_ParseOptions* pOptions, + CPDF_AllStates* pAllStates, + int level); ~CPDF_StreamContentParser(); - FX_BOOL Initialize(); - void PrepareParse(CPDF_Document* pDoc, CPDF_Dictionary* pPageResources, CPDF_Dictionary* pParentResources, - CFX_AffineMatrix* pmtContentToUser, - CPDF_PageObjects* pObjList, CPDF_Dictionary* pResources, - CFX_FloatRect* pBBox, CPDF_ParseOptions* pOptions, - CPDF_AllStates* pAllStates, int level); - CPDF_Document* m_pDocument; - CPDF_Dictionary* m_pPageResources; - CPDF_Dictionary* m_pParentResources; - CPDF_PageObjects* m_pObjectList; - CPDF_Dictionary* m_pResources; - int m_Level; - CFX_AffineMatrix m_mtContentToUser; - CFX_FloatRect m_BBox; - CPDF_ParseOptions m_Options; - _ContentParam m_ParamBuf1[PARAM_BUF_SIZE]; - FX_DWORD m_ParamStartPos; - FX_DWORD m_ParamCount; + + FX_BOOL ShouldAbort() const { return m_bAbort; } + CPDF_PageObjects* GetObjectList() const { return m_pObjectList; } + CPDF_AllStates* GetCurStates() const { return m_pCurStates.get(); } + FX_BOOL IsColored() const { return m_bColored; } + const FX_FLOAT* GetType3Data() const { return m_Type3Data; } + void AddNumberParam(const FX_CHAR* str, int len); void AddObjectParam(CPDF_Object* pObj); void AddNameParam(const FX_CHAR* name, int size); @@ -158,17 +158,10 @@ public: } FX_BOOL OnOperator(const FX_CHAR* op); void BigCaseCaller(int index); - FX_BOOL m_bAbort; - CPDF_StreamParser* m_pSyntax; FX_DWORD GetParsePos() { return m_pSyntax->GetPos(); } - CPDF_AllStates* m_pCurStates; - CPDF_ContentMark m_CurContentMark; - CFX_PtrArray m_ClipTextList; - CPDF_TextObject* m_pLastTextObject; - FX_FLOAT m_DefFontSize; void AddTextObject(CFX_ByteString* pText, FX_FLOAT fInitKerning, FX_FLOAT* pKerning, int count); void ConvertUserSpace(FX_FLOAT& x, FX_FLOAT& y); @@ -176,37 +169,27 @@ public: void OnChangeTextMatrix(); FX_DWORD Parse(const uint8_t* pData, FX_DWORD dwSize, FX_DWORD max_cost); void ParsePathObject(); - int m_CompatCount; - FX_PATHPOINT* m_pPathPoints; - int m_PathPointCount; - int m_PathAllocSize; - FX_FLOAT m_PathStartX, m_PathStartY; - FX_FLOAT m_PathCurrentX, m_PathCurrentY; - int m_PathClipType; void AddPathPoint(FX_FLOAT x, FX_FLOAT y, int flag); void AddPathRect(FX_FLOAT x, FX_FLOAT y, FX_FLOAT w, FX_FLOAT h); void AddPathObject(int FillType, FX_BOOL bStroke); CPDF_ImageObject* AddImage(CPDF_Stream* pStream, CPDF_Image* pImage, FX_BOOL bInline); void AddDuplicateImage(); void AddForm(CPDF_Stream*); - CFX_ByteString m_LastImageName; - CPDF_Image* m_pLastImage; - CFX_BinaryBuf m_LastImageDict, m_LastImageData; - CPDF_Dictionary* m_pLastImageDict; - CPDF_Dictionary* m_pLastCloneImageDict; - FX_BOOL m_bReleaseLastDict; - FX_BOOL m_bSameLastDict; void SetGraphicStates(CPDF_PageObject* pObj, FX_BOOL bColor, FX_BOOL bText, FX_BOOL bGraph); - FX_BOOL m_bColored; - FX_FLOAT m_Type3Data[6]; - FX_BOOL m_bResourceMissing; - CFX_PtrArray m_StateStack; void SaveStates(CPDF_AllStates*); void RestoreStates(CPDF_AllStates*); CPDF_Font* FindFont(const CFX_ByteString& name); CPDF_ColorSpace* FindColorSpace(const CFX_ByteString& name); CPDF_Pattern* FindPattern(const CFX_ByteString& name, FX_BOOL bShading); CPDF_Object* FindResourceObj(const CFX_ByteStringC& type, const CFX_ByteString& name); + +protected: + struct OpCode { + FX_DWORD m_OpId; + void (CPDF_StreamContentParser::*m_OpHandler)(); + }; + static const OpCode g_OpCodes[]; + void Handle_CloseFillStrokePath(); void Handle_FillStrokePath(); void Handle_CloseEOFillStrokePath(); @@ -281,6 +264,47 @@ public: void Handle_NextLineShowText(); void Handle_NextLineShowText_Space(); void Handle_Invalid(); + + CPDF_Document* const m_pDocument; + CPDF_Dictionary* m_pPageResources; + CPDF_Dictionary* m_pParentResources; + CPDF_Dictionary* m_pResources; + CPDF_PageObjects* m_pObjectList; + int m_Level; + CFX_AffineMatrix m_mtContentToUser; + CFX_FloatRect m_BBox; + CPDF_ParseOptions m_Options; + _ContentParam m_ParamBuf1[PARAM_BUF_SIZE]; + FX_DWORD m_ParamStartPos; + FX_DWORD m_ParamCount; + FX_BOOL m_bAbort; + CPDF_StreamParser* m_pSyntax; + nonstd::unique_ptr m_pCurStates; + CPDF_ContentMark m_CurContentMark; + CFX_PtrArray m_ClipTextList; + CPDF_TextObject* m_pLastTextObject; + FX_FLOAT m_DefFontSize; + int m_CompatCount; + FX_PATHPOINT* m_pPathPoints; + int m_PathPointCount; + int m_PathAllocSize; + FX_FLOAT m_PathStartX; + FX_FLOAT m_PathStartY; + FX_FLOAT m_PathCurrentX; + FX_FLOAT m_PathCurrentY; + int m_PathClipType; + CFX_ByteString m_LastImageName; + CPDF_Image* m_pLastImage; + CFX_BinaryBuf m_LastImageDict; + CFX_BinaryBuf m_LastImageData; + CPDF_Dictionary* m_pLastImageDict; + CPDF_Dictionary* m_pLastCloneImageDict; + FX_BOOL m_bReleaseLastDict; + FX_BOOL m_bSameLastDict; + FX_BOOL m_bColored; + FX_FLOAT m_Type3Data[6]; + FX_BOOL m_bResourceMissing; + CFX_PtrArray m_StateStack; }; class CPDF_ContentParser { -- cgit v1.2.3