summaryrefslogtreecommitdiff
path: root/fpdfsdk/src/fpdfview.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'fpdfsdk/src/fpdfview.cpp')
-rw-r--r--fpdfsdk/src/fpdfview.cpp1145
1 files changed, 0 insertions, 1145 deletions
diff --git a/fpdfsdk/src/fpdfview.cpp b/fpdfsdk/src/fpdfview.cpp
deleted file mode 100644
index 1f6d11d3fe..0000000000
--- a/fpdfsdk/src/fpdfview.cpp
+++ /dev/null
@@ -1,1145 +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 "public/fpdfview.h"
-
-#include <memory>
-
-#include "core/include/fpdfapi/cpdf_array.h"
-#include "core/include/fpdfapi/cpdf_document.h"
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/include/fxcrt/fx_safe_types.h"
-#include "fpdfsdk/include/fsdk_define.h"
-#include "fpdfsdk/include/fsdk_mgr.h"
-#include "fpdfsdk/include/fsdk_rendercontext.h"
-#include "fpdfsdk/include/javascript/IJavaScript.h"
-#include "public/fpdf_ext.h"
-#include "public/fpdf_progressive.h"
-#include "third_party/base/numerics/safe_conversions_impl.h"
-
-#ifdef PDF_ENABLE_XFA
-#include "core/include/fpdfapi/fpdf_module.h"
-#include "fpdfsdk/include/fpdfxfa/fpdfxfa_app.h"
-#include "fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h"
-#include "fpdfsdk/include/fpdfxfa/fpdfxfa_page.h"
-#include "fpdfsdk/include/fpdfxfa/fpdfxfa_util.h"
-#include "public/fpdf_formfill.h"
-#endif // PDF_ENABLE_XFA
-
-UnderlyingDocumentType* UnderlyingFromFPDFDocument(FPDF_DOCUMENT doc) {
- return static_cast<UnderlyingDocumentType*>(doc);
-}
-
-FPDF_DOCUMENT FPDFDocumentFromUnderlying(UnderlyingDocumentType* doc) {
- return static_cast<FPDF_DOCUMENT>(doc);
-}
-
-UnderlyingPageType* UnderlyingFromFPDFPage(FPDF_PAGE page) {
- return static_cast<UnderlyingPageType*>(page);
-}
-
-CPDF_Document* CPDFDocumentFromFPDFDocument(FPDF_DOCUMENT doc) {
-#ifdef PDF_ENABLE_XFA
- return doc ? UnderlyingFromFPDFDocument(doc)->GetPDFDoc() : nullptr;
-#else // PDF_ENABLE_XFA
- return UnderlyingFromFPDFDocument(doc);
-#endif // PDF_ENABLE_XFA
-}
-
-FPDF_DOCUMENT FPDFDocumentFromCPDFDocument(CPDF_Document* doc) {
-#ifdef PDF_ENABLE_XFA
- return doc ? FPDFDocumentFromUnderlying(
- new CPDFXFA_Document(doc, CPDFXFA_App::GetInstance()))
- : nullptr;
-#else // PDF_ENABLE_XFA
- return FPDFDocumentFromUnderlying(doc);
-#endif // PDF_ENABLE_XFA
-}
-
-CPDF_Page* CPDFPageFromFPDFPage(FPDF_PAGE page) {
-#ifdef PDF_ENABLE_XFA
- return page ? UnderlyingFromFPDFPage(page)->GetPDFPage() : nullptr;
-#else // PDF_ENABLE_XFA
- return UnderlyingFromFPDFPage(page);
-#endif // PDF_ENABLE_XFA
-}
-
-#ifdef PDF_ENABLE_XFA
-CFPDF_FileStream::CFPDF_FileStream(FPDF_FILEHANDLER* pFS) {
- m_pFS = pFS;
- m_nCurPos = 0;
-}
-
-IFX_FileStream* CFPDF_FileStream::Retain() {
- return this;
-}
-
-void CFPDF_FileStream::Release() {
- if (m_pFS && m_pFS->Release)
- m_pFS->Release(m_pFS->clientData);
- delete this;
-}
-
-FX_FILESIZE CFPDF_FileStream::GetSize() {
- if (m_pFS && m_pFS->GetSize)
- return (FX_FILESIZE)m_pFS->GetSize(m_pFS->clientData);
- return 0;
-}
-
-FX_BOOL CFPDF_FileStream::IsEOF() {
- return m_nCurPos >= GetSize();
-}
-
-FX_BOOL CFPDF_FileStream::ReadBlock(void* buffer,
- FX_FILESIZE offset,
- size_t size) {
- if (!buffer || !size || !m_pFS->ReadBlock)
- return FALSE;
-
- if (m_pFS->ReadBlock(m_pFS->clientData, (FPDF_DWORD)offset, buffer,
- (FPDF_DWORD)size) == 0) {
- m_nCurPos = offset + size;
- return TRUE;
- }
- return FALSE;
-}
-
-size_t CFPDF_FileStream::ReadBlock(void* buffer, size_t size) {
- if (!buffer || !size || !m_pFS->ReadBlock)
- return 0;
-
- FX_FILESIZE nSize = GetSize();
- if (m_nCurPos >= nSize)
- return 0;
- FX_FILESIZE dwAvail = nSize - m_nCurPos;
- if (dwAvail < (FX_FILESIZE)size)
- size = (size_t)dwAvail;
- if (m_pFS->ReadBlock(m_pFS->clientData, (FPDF_DWORD)m_nCurPos, buffer,
- (FPDF_DWORD)size) == 0) {
- m_nCurPos += size;
- return size;
- }
-
- return 0;
-}
-
-FX_BOOL CFPDF_FileStream::WriteBlock(const void* buffer,
- FX_FILESIZE offset,
- size_t size) {
- if (!m_pFS || !m_pFS->WriteBlock)
- return FALSE;
-
- if (m_pFS->WriteBlock(m_pFS->clientData, (FPDF_DWORD)offset, buffer,
- (FPDF_DWORD)size) == 0) {
- m_nCurPos = offset + size;
- return TRUE;
- }
- return FALSE;
-}
-
-FX_BOOL CFPDF_FileStream::Flush() {
- if (!m_pFS || !m_pFS->Flush)
- return TRUE;
-
- return m_pFS->Flush(m_pFS->clientData) == 0;
-}
-#endif // PDF_ENABLE_XFA
-
-CPDF_CustomAccess::CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess) {
- m_FileAccess = *pFileAccess;
-#ifdef PDF_ENABLE_XFA
- m_BufferOffset = (FX_DWORD)-1;
-#endif // PDF_ENABLE_XFA
-}
-
-#ifdef PDF_ENABLE_XFA
-FX_BOOL CPDF_CustomAccess::GetByte(FX_DWORD pos, uint8_t& ch) {
- if (pos >= m_FileAccess.m_FileLen)
- return FALSE;
- if (m_BufferOffset == (FX_DWORD)-1 || pos < m_BufferOffset ||
- pos >= m_BufferOffset + 512) {
- // Need to read from file access
- m_BufferOffset = pos;
- int size = 512;
- if (pos + 512 > m_FileAccess.m_FileLen)
- size = m_FileAccess.m_FileLen - pos;
- if (!m_FileAccess.m_GetBlock(m_FileAccess.m_Param, m_BufferOffset, m_Buffer,
- size))
- return FALSE;
- }
- ch = m_Buffer[pos - m_BufferOffset];
- return TRUE;
-}
-
-FX_BOOL CPDF_CustomAccess::GetBlock(FX_DWORD pos,
- uint8_t* pBuf,
- FX_DWORD size) {
- if (pos + size > m_FileAccess.m_FileLen)
- return FALSE;
- return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, pos, pBuf, size);
-}
-#endif // PDF_ENABLE_XFA
-
-FX_BOOL CPDF_CustomAccess::ReadBlock(void* buffer,
- FX_FILESIZE offset,
- size_t size) {
- if (offset < 0) {
- return FALSE;
- }
- FX_SAFE_FILESIZE newPos =
- pdfium::base::checked_cast<FX_FILESIZE, size_t>(size);
- newPos += offset;
- if (!newPos.IsValid() || newPos.ValueOrDie() > m_FileAccess.m_FileLen) {
- return FALSE;
- }
- return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, offset, (uint8_t*)buffer,
- size);
-}
-
-// 0 bit: FPDF_POLICY_MACHINETIME_ACCESS
-static FX_DWORD foxit_sandbox_policy = 0xFFFFFFFF;
-
-void FSDK_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable) {
- switch (policy) {
- case FPDF_POLICY_MACHINETIME_ACCESS: {
- if (enable)
- foxit_sandbox_policy |= 0x01;
- else
- foxit_sandbox_policy &= 0xFFFFFFFE;
- } break;
- default:
- break;
- }
-}
-
-FPDF_BOOL FSDK_IsSandBoxPolicyEnabled(FPDF_DWORD policy) {
- switch (policy) {
- case FPDF_POLICY_MACHINETIME_ACCESS:
- return !!(foxit_sandbox_policy & 0x01);
- default:
- return FALSE;
- }
-}
-
-CCodec_ModuleMgr* g_pCodecModule = nullptr;
-
-DLLEXPORT void STDCALL FPDF_InitLibrary() {
- FPDF_InitLibraryWithConfig(nullptr);
-}
-
-DLLEXPORT void STDCALL FPDF_InitLibraryWithConfig(
- const FPDF_LIBRARY_CONFIG* cfg) {
- g_pCodecModule = new CCodec_ModuleMgr();
-
- CFX_GEModule::Create(cfg ? cfg->m_pUserFontPaths : nullptr);
- CFX_GEModule::Get()->SetCodecModule(g_pCodecModule);
-
- CPDF_ModuleMgr::Create();
- CPDF_ModuleMgr* pModuleMgr = CPDF_ModuleMgr::Get();
- pModuleMgr->SetCodecModule(g_pCodecModule);
- pModuleMgr->InitPageModule();
- pModuleMgr->InitRenderModule();
-#ifdef PDF_ENABLE_XFA
- CPDFXFA_App::GetInstance()->Initialize(
- (cfg && cfg->version >= 2)
- ? reinterpret_cast<FXJSE_HRUNTIME>(cfg->m_pIsolate)
- : nullptr);
-#else // PDF_ENABLE_XFA
- pModuleMgr->LoadEmbeddedGB1CMaps();
- pModuleMgr->LoadEmbeddedJapan1CMaps();
- pModuleMgr->LoadEmbeddedCNS1CMaps();
- pModuleMgr->LoadEmbeddedKorea1CMaps();
-#endif // PDF_ENABLE_XFA
- if (cfg && cfg->version >= 2)
- IJS_Runtime::Initialize(cfg->m_v8EmbedderSlot, cfg->m_pIsolate);
-}
-
-DLLEXPORT void STDCALL FPDF_DestroyLibrary() {
-#ifdef PDF_ENABLE_XFA
- CPDFXFA_App::ReleaseInstance();
-#endif // PDF_ENABLE_XFA
- CPDF_ModuleMgr::Destroy();
- CFX_GEModule::Destroy();
-
- delete g_pCodecModule;
- g_pCodecModule = nullptr;
-}
-
-#ifndef _WIN32
-int g_LastError;
-void SetLastError(int err) {
- g_LastError = err;
-}
-
-int GetLastError() {
- return g_LastError;
-}
-#endif // _WIN32
-
-void ProcessParseError(CPDF_Parser::Error err) {
- FX_DWORD err_code;
- // Translate FPDFAPI error code to FPDFVIEW error code
- switch (err) {
- case CPDF_Parser::SUCCESS:
- err_code = FPDF_ERR_SUCCESS;
- break;
- case CPDF_Parser::FILE_ERROR:
- err_code = FPDF_ERR_FILE;
- break;
- case CPDF_Parser::FORMAT_ERROR:
- err_code = FPDF_ERR_FORMAT;
- break;
- case CPDF_Parser::PASSWORD_ERROR:
- err_code = FPDF_ERR_PASSWORD;
- break;
- case CPDF_Parser::HANDLER_ERROR:
- err_code = FPDF_ERR_SECURITY;
- break;
- }
- SetLastError(err_code);
-}
-
-DLLEXPORT void STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy,
- FPDF_BOOL enable) {
- return FSDK_SetSandBoxPolicy(policy, enable);
-}
-
-DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path,
- FPDF_BYTESTRING password) {
- // NOTE: the creation of the file needs to be by the embedder on the
- // other side of this API.
- IFX_FileRead* pFileAccess = FX_CreateFileRead((const FX_CHAR*)file_path);
- if (!pFileAccess) {
- return nullptr;
- }
-
- CPDF_Parser* pParser = new CPDF_Parser;
- pParser->SetPassword(password);
-
- CPDF_Parser::Error error = pParser->StartParse(pFileAccess);
- if (error != CPDF_Parser::SUCCESS) {
- delete pParser;
- ProcessParseError(error);
- return NULL;
- }
-#ifdef PDF_ENABLE_XFA
- CPDF_Document* pPDFDoc = pParser->GetDocument();
- if (!pPDFDoc)
- return NULL;
-
- CPDFXFA_App* pProvider = CPDFXFA_App::GetInstance();
- return new CPDFXFA_Document(pPDFDoc, pProvider);
-#else // PDF_ENABLE_XFA
- return pParser->GetDocument();
-#endif // PDF_ENABLE_XFA
-}
-
-#ifdef PDF_ENABLE_XFA
-DLLEXPORT FPDF_BOOL STDCALL FPDF_HasXFAField(FPDF_DOCUMENT document,
- int* docType) {
- if (!document)
- return FALSE;
-
- CPDF_Document* pdfDoc =
- (static_cast<CPDFXFA_Document*>(document))->GetPDFDoc();
- if (!pdfDoc)
- return FALSE;
-
- CPDF_Dictionary* pRoot = pdfDoc->GetRoot();
- if (!pRoot)
- return FALSE;
-
- CPDF_Dictionary* pAcroForm = pRoot->GetDictBy("AcroForm");
- if (!pAcroForm)
- return FALSE;
-
- CPDF_Object* pXFA = pAcroForm->GetElement("XFA");
- if (!pXFA)
- return FALSE;
-
- FX_BOOL bDynamicXFA = pRoot->GetBooleanBy("NeedsRendering", FALSE);
-
- if (bDynamicXFA)
- *docType = DOCTYPE_DYNAMIC_XFA;
- else
- *docType = DOCTYPE_STATIC_XFA;
-
- return TRUE;
-}
-
-DLLEXPORT FPDF_BOOL STDCALL FPDF_LoadXFA(FPDF_DOCUMENT document) {
- return document && (static_cast<CPDFXFA_Document*>(document))->LoadXFADoc();
-}
-#endif // PDF_ENABLE_XFA
-
-class CMemFile final : public IFX_FileRead {
- public:
- CMemFile(uint8_t* pBuf, FX_FILESIZE size) : m_pBuf(pBuf), m_size(size) {}
-
- void Release() override { delete this; }
- FX_FILESIZE GetSize() override { return m_size; }
- FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override {
- if (offset < 0) {
- return FALSE;
- }
- FX_SAFE_FILESIZE newPos =
- pdfium::base::checked_cast<FX_FILESIZE, size_t>(size);
- newPos += offset;
- if (!newPos.IsValid() || newPos.ValueOrDie() > (FX_DWORD)m_size) {
- return FALSE;
- }
- FXSYS_memcpy(buffer, m_pBuf + offset, size);
- return TRUE;
- }
-
- private:
- ~CMemFile() override {}
-
- uint8_t* const m_pBuf;
- const FX_FILESIZE m_size;
-};
-
-DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadMemDocument(const void* data_buf,
- int size,
- FPDF_BYTESTRING password) {
- CPDF_Parser* pParser = new CPDF_Parser;
- pParser->SetPassword(password);
- CMemFile* pMemFile = new CMemFile((uint8_t*)data_buf, size);
- CPDF_Parser::Error error = pParser->StartParse(pMemFile);
- if (error != CPDF_Parser::SUCCESS) {
- delete pParser;
- ProcessParseError(error);
- return NULL;
- }
- CPDF_Document* pDoc = NULL;
- pDoc = pParser ? pParser->GetDocument() : NULL;
- CheckUnSupportError(pDoc, error);
- return FPDFDocumentFromCPDFDocument(pParser->GetDocument());
-}
-
-DLLEXPORT FPDF_DOCUMENT STDCALL
-FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess,
- FPDF_BYTESTRING password) {
- CPDF_Parser* pParser = new CPDF_Parser;
- pParser->SetPassword(password);
- CPDF_CustomAccess* pFile = new CPDF_CustomAccess(pFileAccess);
- CPDF_Parser::Error error = pParser->StartParse(pFile);
- if (error != CPDF_Parser::SUCCESS) {
- delete pParser;
- ProcessParseError(error);
- return NULL;
- }
- CPDF_Document* pDoc = NULL;
- pDoc = pParser ? pParser->GetDocument() : NULL;
- CheckUnSupportError(pDoc, error);
- return FPDFDocumentFromCPDFDocument(pParser->GetDocument());
-}
-
-DLLEXPORT FPDF_BOOL STDCALL FPDF_GetFileVersion(FPDF_DOCUMENT doc,
- int* fileVersion) {
- if (!fileVersion)
- return FALSE;
-
- *fileVersion = 0;
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(doc);
- if (!pDoc)
- return FALSE;
-
- CPDF_Parser* pParser = pDoc->GetParser();
- if (!pParser)
- return FALSE;
-
- *fileVersion = pParser->GetFileVersion();
- return TRUE;
-}
-
-// jabdelmalek: changed return type from FX_DWORD to build on Linux (and match
-// header).
-DLLEXPORT unsigned long STDCALL FPDF_GetDocPermissions(FPDF_DOCUMENT document) {
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
-#ifndef PDF_ENABLE_XFA
- return 0;
-#else // PDF_ENABLE_XFA
- return (FX_DWORD)-1;
-#endif // PDF_ENABLE_XFA
-
- CPDF_Dictionary* pDict = pDoc->GetParser()->GetEncryptDict();
- return pDict ? pDict->GetIntegerBy("P") : (FX_DWORD)-1;
-}
-
-DLLEXPORT int STDCALL FPDF_GetSecurityHandlerRevision(FPDF_DOCUMENT document) {
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return -1;
-
- CPDF_Dictionary* pDict = pDoc->GetParser()->GetEncryptDict();
- return pDict ? pDict->GetIntegerBy("R") : -1;
-}
-
-DLLEXPORT int STDCALL FPDF_GetPageCount(FPDF_DOCUMENT document) {
- UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document);
- return pDoc ? pDoc->GetPageCount() : 0;
-}
-
-DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document,
- int page_index) {
- UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document);
- if (!pDoc)
- return nullptr;
-
- if (page_index < 0 || page_index >= pDoc->GetPageCount())
- return nullptr;
-
-#ifdef PDF_ENABLE_XFA
- return pDoc->GetPage(page_index);
-#else // PDF_ENABLE_XFA
- CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
- if (!pDict)
- return NULL;
- CPDF_Page* pPage = new CPDF_Page;
- pPage->Load(pDoc, pDict);
- pPage->ParseContent(nullptr);
- return pPage;
-#endif // PDF_ENABLE_XFA
-}
-
-DLLEXPORT double STDCALL FPDF_GetPageWidth(FPDF_PAGE page) {
- UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
- return pPage ? pPage->GetPageWidth() : 0.0;
-}
-
-DLLEXPORT double STDCALL FPDF_GetPageHeight(FPDF_PAGE page) {
- UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
- return pPage ? pPage->GetPageHeight() : 0.0;
-}
-
-void DropContext(void* data) {
- delete (CRenderContext*)data;
-}
-
-#if defined(_WIN32)
-DLLEXPORT void STDCALL FPDF_RenderPage(HDC dc,
- FPDF_PAGE page,
- int start_x,
- int start_y,
- int size_x,
- int size_y,
- int rotate,
- int flags) {
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- if (!pPage)
- return;
-
- CRenderContext* pContext = new CRenderContext;
- pPage->SetPrivateData((void*)1, pContext, DropContext);
-
-#if !defined(_WIN32_WCE)
- CFX_DIBitmap* pBitmap = nullptr;
- FX_BOOL bBackgroundAlphaNeeded = pPage->BackgroundAlphaNeeded();
- FX_BOOL bHasImageMask = pPage->HasImageMask();
- if (bBackgroundAlphaNeeded || bHasImageMask) {
- pBitmap = new CFX_DIBitmap;
- pBitmap->Create(size_x, size_y, FXDIB_Argb);
- pBitmap->Clear(0x00ffffff);
-#ifdef _SKIA_SUPPORT_
- pContext->m_pDevice = new CFX_SkiaDevice;
- ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap);
-#else
- pContext->m_pDevice = new CFX_FxgeDevice;
- ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap);
-#endif
- } else {
- pContext->m_pDevice = new CFX_WindowsDevice(dc);
- }
-
- FPDF_RenderPage_Retail(pContext, page, start_x, start_y, size_x, size_y,
- rotate, flags, TRUE, NULL);
-
- if (bBackgroundAlphaNeeded || bHasImageMask) {
- if (pBitmap) {
- CFX_WindowsDevice WinDC(dc);
-
- if (WinDC.GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) {
- CFX_DIBitmap* pDst = new CFX_DIBitmap;
- int pitch = pBitmap->GetPitch();
- pDst->Create(size_x, size_y, FXDIB_Rgb32);
- FXSYS_memset(pDst->GetBuffer(), -1, pitch * size_y);
- pDst->CompositeBitmap(0, 0, size_x, size_y, pBitmap, 0, 0,
- FXDIB_BLEND_NORMAL, NULL, FALSE, NULL);
- WinDC.StretchDIBits(pDst, 0, 0, size_x, size_y);
- delete pDst;
- } else {
- WinDC.SetDIBits(pBitmap, 0, 0);
- }
- }
- }
-#else
- // get clip region
- RECT rect, cliprect;
- rect.left = start_x;
- rect.top = start_y;
- rect.right = start_x + size_x;
- rect.bottom = start_y + size_y;
- GetClipBox(dc, &cliprect);
- IntersectRect(&rect, &rect, &cliprect);
- int width = rect.right - rect.left;
- int height = rect.bottom - rect.top;
-
- // Create a DIB section
- LPVOID pBuffer;
- BITMAPINFOHEADER bmih;
- FXSYS_memset(&bmih, 0, sizeof bmih);
- bmih.biSize = sizeof bmih;
- bmih.biBitCount = 24;
- bmih.biHeight = -height;
- bmih.biPlanes = 1;
- bmih.biWidth = width;
- pContext->m_hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS,
- &pBuffer, NULL, 0);
- FXSYS_memset(pBuffer, 0xff, height * ((width * 3 + 3) / 4 * 4));
-
- // Create a device with this external buffer
- pContext->m_pBitmap = new CFX_DIBitmap;
- pContext->m_pBitmap->Create(width, height, FXDIB_Rgb, (uint8_t*)pBuffer);
- pContext->m_pDevice = new CPDF_FxgeDevice;
- ((CPDF_FxgeDevice*)pContext->m_pDevice)->Attach(pContext->m_pBitmap);
-
- // output to bitmap device
- FPDF_RenderPage_Retail(pContext, page, start_x - rect.left,
- start_y - rect.top, size_x, size_y, rotate, flags);
-
- // Now output to real device
- HDC hMemDC = CreateCompatibleDC(dc);
- HGDIOBJ hOldBitmap = SelectObject(hMemDC, pContext->m_hBitmap);
-
- BitBlt(dc, rect.left, rect.top, width, height, hMemDC, 0, 0, SRCCOPY);
- SelectObject(hMemDC, hOldBitmap);
- DeleteDC(hMemDC);
-
-#endif // !defined(_WIN32_WCE)
- if (bBackgroundAlphaNeeded || bHasImageMask)
- delete pBitmap;
-
- delete pContext;
- pPage->RemovePrivateData((void*)1);
-}
-#endif // defined(_WIN32)
-
-DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap,
- FPDF_PAGE page,
- int start_x,
- int start_y,
- int size_x,
- int size_y,
- int rotate,
- int flags) {
- if (!bitmap)
- return;
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- if (!pPage)
- return;
- CRenderContext* pContext = new CRenderContext;
- pPage->SetPrivateData((void*)1, pContext, DropContext);
-#ifdef _SKIA_SUPPORT_
- pContext->m_pDevice = new CFX_SkiaDevice;
-
- if (flags & FPDF_REVERSE_BYTE_ORDER)
- ((CFX_SkiaDevice*)pContext->m_pDevice)
- ->Attach((CFX_DIBitmap*)bitmap, 0, TRUE);
- else
- ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
-#else
- pContext->m_pDevice = new CFX_FxgeDevice;
-
- if (flags & FPDF_REVERSE_BYTE_ORDER)
- ((CFX_FxgeDevice*)pContext->m_pDevice)
- ->Attach((CFX_DIBitmap*)bitmap, 0, TRUE);
- else
- ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
-#endif
-
- FPDF_RenderPage_Retail(pContext, page, start_x, start_y, size_x, size_y,
- rotate, flags, TRUE, NULL);
-
- delete pContext;
- pPage->RemovePrivateData((void*)1);
-}
-
-DLLEXPORT void STDCALL FPDF_ClosePage(FPDF_PAGE page) {
- if (!page)
- return;
-#ifdef PDF_ENABLE_XFA
- CPDFXFA_Page* pPage = (CPDFXFA_Page*)page;
- pPage->Release();
-#else // PDF_ENABLE_XFA
- CPDFSDK_PageView* pPageView =
- (CPDFSDK_PageView*)(((CPDF_Page*)page))->GetPrivateData((void*)page);
- if (pPageView && pPageView->IsLocked()) {
- pPageView->TakeOverPage();
- return;
- }
- delete (CPDF_Page*)page;
-#endif // PDF_ENABLE_XFA
-}
-
-DLLEXPORT void STDCALL FPDF_CloseDocument(FPDF_DOCUMENT document) {
-#ifdef PDF_ENABLE_XFA
- delete UnderlyingFromFPDFDocument(document);
-#else // PDF_ENABLE_XFA
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return;
- CPDF_Parser* pParser = pDoc->GetParser();
- if (!pParser) {
- delete pDoc;
- return;
- }
- delete pParser;
-#endif // PDF_ENABLE_XFA
-}
-
-DLLEXPORT unsigned long STDCALL FPDF_GetLastError() {
- return GetLastError();
-}
-
-DLLEXPORT void STDCALL FPDF_DeviceToPage(FPDF_PAGE page,
- int start_x,
- int start_y,
- int size_x,
- int size_y,
- int rotate,
- int device_x,
- int device_y,
- double* page_x,
- double* page_y) {
- if (!page || !page_x || !page_y)
- return;
- UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
-#ifdef PDF_ENABLE_XFA
- pPage->DeviceToPage(start_x, start_y, size_x, size_y, rotate, device_x,
- device_y, page_x, page_y);
-#else // PDF_ENABLE_XFA
- CFX_Matrix page2device;
- pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y,
- rotate);
- CFX_Matrix device2page;
- device2page.SetReverse(page2device);
- FX_FLOAT page_x_f, page_y_f;
- device2page.Transform((FX_FLOAT)(device_x), (FX_FLOAT)(device_y), page_x_f,
- page_y_f);
- *page_x = (page_x_f);
- *page_y = (page_y_f);
-#endif // PDF_ENABLE_XFA
-}
-
-DLLEXPORT void STDCALL FPDF_PageToDevice(FPDF_PAGE page,
- int start_x,
- int start_y,
- int size_x,
- int size_y,
- int rotate,
- double page_x,
- double page_y,
- int* device_x,
- int* device_y) {
- if (!device_x || !device_y)
- return;
- UnderlyingPageType* pPage = UnderlyingFromFPDFPage(page);
- if (!pPage)
- return;
-#ifdef PDF_ENABLE_XFA
- pPage->PageToDevice(start_x, start_y, size_x, size_y, rotate, page_x, page_y,
- device_x, device_y);
-#else // PDF_ENABLE_XFA
- CFX_Matrix page2device;
- pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y,
- rotate);
- FX_FLOAT device_x_f, device_y_f;
- page2device.Transform(((FX_FLOAT)page_x), ((FX_FLOAT)page_y), device_x_f,
- device_y_f);
- *device_x = FXSYS_round(device_x_f);
- *device_y = FXSYS_round(device_y_f);
-#endif // PDF_ENABLE_XFA
-}
-
-DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_Create(int width,
- int height,
- int alpha) {
- std::unique_ptr<CFX_DIBitmap> pBitmap(new CFX_DIBitmap);
- if (!pBitmap->Create(width, height, alpha ? FXDIB_Argb : FXDIB_Rgb32)) {
- return NULL;
- }
- return pBitmap.release();
-}
-
-DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_CreateEx(int width,
- int height,
- int format,
- void* first_scan,
- int stride) {
- FXDIB_Format fx_format;
- switch (format) {
- case FPDFBitmap_Gray:
- fx_format = FXDIB_8bppRgb;
- break;
- case FPDFBitmap_BGR:
- fx_format = FXDIB_Rgb;
- break;
- case FPDFBitmap_BGRx:
- fx_format = FXDIB_Rgb32;
- break;
- case FPDFBitmap_BGRA:
- fx_format = FXDIB_Argb;
- break;
- default:
- return NULL;
- }
- CFX_DIBitmap* pBitmap = new CFX_DIBitmap;
- pBitmap->Create(width, height, fx_format, (uint8_t*)first_scan, stride);
- return pBitmap;
-}
-
-DLLEXPORT void STDCALL FPDFBitmap_FillRect(FPDF_BITMAP bitmap,
- int left,
- int top,
- int width,
- int height,
- FPDF_DWORD color) {
- if (!bitmap)
- return;
-#ifdef _SKIA_SUPPORT_
- CFX_SkiaDevice device;
-#else
- CFX_FxgeDevice device;
-#endif
- device.Attach((CFX_DIBitmap*)bitmap);
- if (!((CFX_DIBitmap*)bitmap)->HasAlpha())
- color |= 0xFF000000;
- FX_RECT rect(left, top, left + width, top + height);
- device.FillRect(&rect, color);
-}
-
-DLLEXPORT void* STDCALL FPDFBitmap_GetBuffer(FPDF_BITMAP bitmap) {
- return bitmap ? ((CFX_DIBitmap*)bitmap)->GetBuffer() : nullptr;
-}
-
-DLLEXPORT int STDCALL FPDFBitmap_GetWidth(FPDF_BITMAP bitmap) {
- return bitmap ? ((CFX_DIBitmap*)bitmap)->GetWidth() : 0;
-}
-
-DLLEXPORT int STDCALL FPDFBitmap_GetHeight(FPDF_BITMAP bitmap) {
- return bitmap ? ((CFX_DIBitmap*)bitmap)->GetHeight() : 0;
-}
-
-DLLEXPORT int STDCALL FPDFBitmap_GetStride(FPDF_BITMAP bitmap) {
- return bitmap ? ((CFX_DIBitmap*)bitmap)->GetPitch() : 0;
-}
-
-DLLEXPORT void STDCALL FPDFBitmap_Destroy(FPDF_BITMAP bitmap) {
- delete (CFX_DIBitmap*)bitmap;
-}
-
-void FPDF_RenderPage_Retail(CRenderContext* pContext,
- FPDF_PAGE page,
- int start_x,
- int start_y,
- int size_x,
- int size_y,
- int rotate,
- int flags,
- FX_BOOL bNeedToRestore,
- IFSDK_PAUSE_Adapter* pause) {
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- if (!pPage)
- return;
-
- if (!pContext->m_pOptions)
- pContext->m_pOptions = new CPDF_RenderOptions;
-
- if (flags & FPDF_LCD_TEXT)
- pContext->m_pOptions->m_Flags |= RENDER_CLEARTYPE;
- else
- pContext->m_pOptions->m_Flags &= ~RENDER_CLEARTYPE;
- if (flags & FPDF_NO_NATIVETEXT)
- pContext->m_pOptions->m_Flags |= RENDER_NO_NATIVETEXT;
- if (flags & FPDF_RENDER_LIMITEDIMAGECACHE)
- pContext->m_pOptions->m_Flags |= RENDER_LIMITEDIMAGECACHE;
- if (flags & FPDF_RENDER_FORCEHALFTONE)
- pContext->m_pOptions->m_Flags |= RENDER_FORCE_HALFTONE;
-#ifndef PDF_ENABLE_XFA
- if (flags & FPDF_RENDER_NO_SMOOTHTEXT)
- pContext->m_pOptions->m_Flags |= RENDER_NOTEXTSMOOTH;
- if (flags & FPDF_RENDER_NO_SMOOTHIMAGE)
- pContext->m_pOptions->m_Flags |= RENDER_NOIMAGESMOOTH;
- if (flags & FPDF_RENDER_NO_SMOOTHPATH)
- pContext->m_pOptions->m_Flags |= RENDER_NOPATHSMOOTH;
-#endif // PDF_ENABLE_XFA
- // Grayscale output
- if (flags & FPDF_GRAYSCALE) {
- pContext->m_pOptions->m_ColorMode = RENDER_COLOR_GRAY;
- pContext->m_pOptions->m_ForeColor = 0;
- pContext->m_pOptions->m_BackColor = 0xffffff;
- }
- const CPDF_OCContext::UsageType usage =
- (flags & FPDF_PRINTING) ? CPDF_OCContext::Print : CPDF_OCContext::View;
- pContext->m_pOptions->m_AddFlags = flags >> 8;
- pContext->m_pOptions->m_pOCContext =
- new CPDF_OCContext(pPage->m_pDocument, usage);
-
- CFX_Matrix matrix;
- pPage->GetDisplayMatrix(matrix, start_x, start_y, size_x, size_y, rotate);
-
- pContext->m_pDevice->SaveState();
- pContext->m_pDevice->SetClip_Rect(
- FX_RECT(start_x, start_y, start_x + size_x, start_y + size_y));
-
- pContext->m_pContext = new CPDF_RenderContext(pPage);
- pContext->m_pContext->AppendLayer(pPage, &matrix);
-
- if (flags & FPDF_ANNOT) {
- pContext->m_pAnnots = new CPDF_AnnotList(pPage);
- FX_BOOL bPrinting = pContext->m_pDevice->GetDeviceClass() != FXDC_DISPLAY;
- pContext->m_pAnnots->DisplayAnnots(pPage, pContext->m_pContext, bPrinting,
- &matrix, TRUE, NULL);
- }
-
- pContext->m_pRenderer = new CPDF_ProgressiveRenderer(
- pContext->m_pContext, pContext->m_pDevice, pContext->m_pOptions);
- pContext->m_pRenderer->Start(pause);
- if (bNeedToRestore)
- pContext->m_pDevice->RestoreState();
-}
-
-DLLEXPORT int STDCALL FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document,
- int page_index,
- double* width,
- double* height) {
- UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document);
- if (!pDoc)
- return FALSE;
-
-#ifdef PDF_ENABLE_XFA
- int count = pDoc->GetPageCount();
- if (page_index < 0 || page_index >= count)
- return FALSE;
- CPDFXFA_Page* pPage = pDoc->GetPage(page_index);
- if (!pPage)
- return FALSE;
- *width = pPage->GetPageWidth();
- *height = pPage->GetPageHeight();
-#else // PDF_ENABLE_XFA
- CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
- if (!pDict)
- return FALSE;
- CPDF_Page page;
- page.Load(pDoc, pDict);
- *width = page.GetPageWidth();
- *height = page.GetPageHeight();
-#endif // PDF_ENABLE_XFA
-
- return TRUE;
-}
-
-DLLEXPORT FPDF_BOOL STDCALL
-FPDF_VIEWERREF_GetPrintScaling(FPDF_DOCUMENT document) {
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return TRUE;
- CPDF_ViewerPreferences viewRef(pDoc);
- return viewRef.PrintScaling();
-}
-
-DLLEXPORT int STDCALL FPDF_VIEWERREF_GetNumCopies(FPDF_DOCUMENT document) {
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return 1;
- CPDF_ViewerPreferences viewRef(pDoc);
- return viewRef.NumCopies();
-}
-
-DLLEXPORT FPDF_PAGERANGE STDCALL
-FPDF_VIEWERREF_GetPrintPageRange(FPDF_DOCUMENT document) {
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return NULL;
- CPDF_ViewerPreferences viewRef(pDoc);
- return viewRef.PrintPageRange();
-}
-
-DLLEXPORT FPDF_DUPLEXTYPE STDCALL
-FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document) {
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return DuplexUndefined;
- CPDF_ViewerPreferences viewRef(pDoc);
- CFX_ByteString duplex = viewRef.Duplex();
- if ("Simplex" == duplex)
- return Simplex;
- if ("DuplexFlipShortEdge" == duplex)
- return DuplexFlipShortEdge;
- if ("DuplexFlipLongEdge" == duplex)
- return DuplexFlipLongEdge;
- return DuplexUndefined;
-}
-
-DLLEXPORT FPDF_DWORD STDCALL FPDF_CountNamedDests(FPDF_DOCUMENT document) {
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return 0;
-
- CPDF_Dictionary* pRoot = pDoc->GetRoot();
- if (!pRoot)
- return 0;
-
- CPDF_NameTree nameTree(pDoc, "Dests");
- pdfium::base::CheckedNumeric<FPDF_DWORD> count = nameTree.GetCount();
- CPDF_Dictionary* pDest = pRoot->GetDictBy("Dests");
- if (pDest)
- count += pDest->GetCount();
-
- if (!count.IsValid())
- return 0;
-
- return count.ValueOrDie();
-}
-
-DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document,
- FPDF_BYTESTRING name) {
- if (!name || name[0] == 0)
- return nullptr;
-
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return nullptr;
-
- CPDF_NameTree name_tree(pDoc, "Dests");
- return name_tree.LookupNamedDest(pDoc, name);
-}
-
-#ifdef PDF_ENABLE_XFA
-FPDF_RESULT FPDF_BStr_Init(FPDF_BSTR* str) {
- if (!str)
- return -1;
-
- FXSYS_memset(str, 0, sizeof(FPDF_BSTR));
- return 0;
-}
-
-FPDF_RESULT FPDF_BStr_Set(FPDF_BSTR* str, FPDF_LPCSTR bstr, int length) {
- if (!str)
- return -1;
- if (!bstr || !length)
- return -1;
- if (length == -1)
- length = FXSYS_strlen(bstr);
-
- if (length == 0) {
- if (str->str) {
- FX_Free(str->str);
- str->str = NULL;
- }
- str->len = 0;
- return 0;
- }
-
- if (str->str && str->len < length)
- str->str = FX_Realloc(char, str->str, length + 1);
- else if (!str->str)
- str->str = FX_Alloc(char, length + 1);
-
- str->str[length] = 0;
- if (str->str == NULL)
- return -1;
-
- FXSYS_memcpy(str->str, bstr, length);
- str->len = length;
-
- return 0;
-}
-
-FPDF_RESULT FPDF_BStr_Clear(FPDF_BSTR* str) {
- if (!str)
- return -1;
-
- if (str->str) {
- FX_Free(str->str);
- str->str = NULL;
- }
- str->len = 0;
- return 0;
-}
-#endif // PDF_ENABLE_XFA
-
-DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDest(FPDF_DOCUMENT document,
- int index,
- void* buffer,
- long* buflen) {
- if (!buffer)
- *buflen = 0;
-
- if (index < 0)
- return nullptr;
-
- CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
- if (!pDoc)
- return nullptr;
-
- CPDF_Dictionary* pRoot = pDoc->GetRoot();
- if (!pRoot)
- return nullptr;
-
- CPDF_Object* pDestObj = nullptr;
- CFX_ByteString bsName;
- CPDF_NameTree nameTree(pDoc, "Dests");
- int count = nameTree.GetCount();
- if (index >= count) {
- CPDF_Dictionary* pDest = pRoot->GetDictBy("Dests");
- if (!pDest)
- return nullptr;
-
- pdfium::base::CheckedNumeric<int> checked_count = count;
- checked_count += pDest->GetCount();
- if (!checked_count.IsValid() || index >= checked_count.ValueOrDie())
- return nullptr;
-
- index -= count;
- int i = 0;
- for (const auto& it : *pDest) {
- bsName = it.first;
- pDestObj = it.second;
- if (!pDestObj)
- continue;
- if (i == index)
- break;
- i++;
- }
- } else {
- pDestObj = nameTree.LookupValue(index, bsName);
- }
- if (!pDestObj)
- return nullptr;
- if (CPDF_Dictionary* pDict = pDestObj->AsDictionary()) {
- pDestObj = pDict->GetArrayBy("D");
- if (!pDestObj)
- return nullptr;
- }
- if (!pDestObj->IsArray())
- return nullptr;
-
- CFX_WideString wsName = PDF_DecodeText(bsName);
- CFX_ByteString utf16Name = wsName.UTF16LE_Encode();
- unsigned int len = utf16Name.GetLength();
- if (!buffer) {
- *buflen = len;
- } else if (*buflen >= len) {
- memcpy(buffer, utf16Name.c_str(), len);
- *buflen = len;
- } else {
- *buflen = -1;
- }
- return (FPDF_DEST)pDestObj;
-}