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authorDan Sinclair <dsinclair@chromium.org>2016-03-14 13:51:24 -0400
committerDan Sinclair <dsinclair@chromium.org>2016-03-14 13:51:24 -0400
commitf766ad219f66543654520f6a1955836f519e26d1 (patch)
tree2edf8bc93b89503a3669f7add5b6c2a407b8a78c /fpdfsdk/fpdfview.cpp
parent54b0abed08048008498471e39b7c72b034474090 (diff)
downloadpdfium-f766ad219f66543654520f6a1955836f519e26d1.tar.xz
Move fpdfsdk/src up to fpdfsdk/.
This CL moves the files in fpdfsdk/src/ up one level to fpdfsdk/ and fixes up the include paths, include guards and build files. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1799773002 .
Diffstat (limited to 'fpdfsdk/fpdfview.cpp')
-rw-r--r--fpdfsdk/fpdfview.cpp1145
1 files changed, 1145 insertions, 0 deletions
diff --git a/fpdfsdk/fpdfview.cpp b/fpdfsdk/fpdfview.cpp
new file mode 100644
index 0000000000..48fe0664a2
--- /dev/null
+++ b/fpdfsdk/fpdfview.cpp
@@ -0,0 +1,1145 @@
+// 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;
+}