src/third_party/pdfium/fpdfsdk/src/fpdfview.cpp

   1 // Copyright 2014 PDFium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
   6
   7 #include "../include/fsdk_define.h"
   8 #include "../include/fpdfview.h"
   9 #include "../include/fsdk_rendercontext.h"
  10 #include "../include/fpdf_progressive.h"
  11 #include "../include/fpdf_ext.h"
  12
  13
  14 CPDF_CustomAccess::CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess)
  15 {
  16         m_FileAccess = *pFileAccess;
  17         m_BufferOffset = (FX_DWORD)-1;
  18 }
  19
  20 FX_BOOL CPDF_CustomAccess::GetByte(FX_DWORD pos, FX_BYTE& ch)
  21 {
  22         if (pos >= m_FileAccess.m_FileLen) return FALSE;
  23         if (m_BufferOffset == (FX_DWORD)-1 || pos < m_BufferOffset || pos >= m_BufferOffset + 512) {
  24                 // Need to read from file access
  25                 m_BufferOffset = pos;
  26                 int size = 512;
  27                 if (pos + 512 > m_FileAccess.m_FileLen)
  28                         size = m_FileAccess.m_FileLen - pos;
  29                 if (!m_FileAccess.m_GetBlock(m_FileAccess.m_Param, m_BufferOffset, m_Buffer, size))
  30                         return FALSE;
  31         }
  32         ch = m_Buffer[pos - m_BufferOffset];
  33         return TRUE;
  34 }
  35
  36 FX_BOOL CPDF_CustomAccess::GetBlock(FX_DWORD pos, FX_LPBYTE pBuf, FX_DWORD size)
  37 {
  38         if (pos + size > m_FileAccess.m_FileLen) return FALSE;
  39         return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, pos, pBuf, size);
  40 }
  41
  42 FX_BOOL CPDF_CustomAccess::ReadBlock(void* buffer, FX_FILESIZE offset, size_t size)
  43 {
  44         //      m_FileAccess = *pFileAccess;
  45         //      m_BufferOffset = (FX_DWORD)-1;
  46         if (offset + size > m_FileAccess.m_FileLen) return FALSE;
  47         return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, offset,(FX_LPBYTE) buffer, size);
  48
  49         //      return FALSE;
  50 }
  51
  52 //0 bit: FPDF_POLICY_MACHINETIME_ACCESS
  53 static FX_DWORD foxit_sandbox_policy = 0xFFFFFFFF;
  54
  55 void FSDK_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable)
  56 {
  57         switch(policy)
  58         {
  59         case FPDF_POLICY_MACHINETIME_ACCESS:
  60                 {
  61                         if(enable)
  62                                 foxit_sandbox_policy |= 0x01;
  63                         else
  64                                 foxit_sandbox_policy &= 0xFFFFFFFE;
  65                 }
  66                 break;
  67         default:
  68                 break;
  69         }
  70 }
  71
  72 FPDF_BOOL FSDK_IsSandBoxPolicyEnabled(FPDF_DWORD policy)
  73 {
  74         switch(policy)
  75         {
  76         case FPDF_POLICY_MACHINETIME_ACCESS:
  77                 {
  78                         if(foxit_sandbox_policy&0x01)
  79                                 return TRUE;
  80                         else
  81                                 return FALSE;
  82                 }
  83                 break;
  84         default:
  85                 break;
  86         }
  87         return FALSE;
  88 }
  89
  90
  91 #ifndef _T
  92 #define _T(x) x
  93 #endif
  94
  95 #ifdef API5
  96         CPDF_ModuleMgr* g_pModuleMgr = NULL;
  97 #else
  98         CCodec_ModuleMgr*       g_pCodecModule = NULL;
  99 #ifdef _FXSDK_OPENSOURCE_
 100         FXMEM_FoxitMgr* g_pFoxitMgr = NULL;
 101 #endif
 102 #endif
 103
 104 //extern CPDFSDK_FormFillApp* g_pFormFillApp;
 105
 106 #if _FX_OS_ == _FX_LINUX_EMBEDDED_
 107 class CFontMapper : public IPDF_FontMapper
 108 {
 109 public:
 110         CFontMapper();
 111         virtual ~CFontMapper();
 112
 113         virtual FT_Face FindSubstFont(
 114                                                         CPDF_Document* pDoc,                            // [IN] The PDF document
 115                                                         const CFX_ByteString& face_name,        // [IN] Original name
 116                                                         FX_BOOL bTrueType,                                      // [IN] TrueType or Type1
 117                                                         FX_DWORD flags,                                         // [IN] PDF font flags (see PDF Reference section 5.7.1)
 118                                                         int font_weight,                                        // [IN] original font weight. 0 for not specified
 119                                                         int CharsetCP,                                          // [IN] code page for charset (see Win32 GetACP())
 120                                                         FX_BOOL bVertical,
 121                                                         CPDF_SubstFont* pSubstFont                      // [OUT] Subst font data
 122                                                 );
 123
 124         FT_Face m_SysFace;
 125 };
 126
 127 CFontMapper* g_pFontMapper = NULL;
 128 #endif          // #if _FX_OS_ == _FX_LINUX_EMBEDDED_
 129
 130 DLLEXPORT void STDCALL FPDF_InitLibrary(FX_LPVOID hInstance)
 131 {
 132 #ifdef API5
 133         CPDF_ModuleMgr::Create();
 134         g_pModuleMgr = CPDF_ModuleMgr::Get();
 135          #if _FX_OS_ == _FX_WIN32_MOBILE_ || _FX_OS_ == _FX_LINUX_EMBEDDED_
 136                 g_pModuleMgr->InitEmbedded();
 137          #ifdef _GB1_CMAPS_
 138                 g_pModuleMgr->LoadEmbeddedGB1CMaps();
 139          #endif
 140          #ifdef _GB1_CMAPS_4_
 141                 g_pModuleMgr->LoadEmbeddedGB1CMaps_4();
 142          #endif
 143          #ifdef _CNS1_CMAPS_
 144                 g_pModuleMgr->LoadEmbeddedCNS1CMaps();
 145          #endif
 146          #ifdef _JAPAN1_CMAPS_
 147                 g_pModuleMgr->LoadEmbeddedJapan1CMaps();
 148          #endif
 149          #ifdef _JAPAN1_CMAPS_6_
 150                 g_pModuleMgr->LoadEmbeddedJapan1CMaps_6();
 151          #endif
 152          #ifdef _KOREA1_CMAPS_
 153                 g_pModuleMgr->LoadEmbeddedKorea1CMaps();
 154          #endif
 155          #ifdef _JPX_DECODER_
 156                 g_pModuleMgr->InitJpxModule();
 157                 g_pModuleMgr->InitJbig2Module();
 158          //     g_pModuleMgr->InitIccModule();
 159          #endif
 160          #else
 161                 g_pModuleMgr->InitDesktop();
 162          #endif
 163 #else
 164 #ifdef _FXSDK_OPENSOURCE_
 165         g_pFoxitMgr = FXMEM_CreateMemoryMgr(1024 * 1024 * 32, TRUE);
 166 #endif
 167         g_pCodecModule = CCodec_ModuleMgr::Create();
 168
 169         CFX_GEModule::Create();
 170         CFX_GEModule::Get()->SetCodecModule(g_pCodecModule);
 171
 172         CPDF_ModuleMgr::Create();
 173         CPDF_ModuleMgr::Get()->SetCodecModule(g_pCodecModule);
 174         CPDF_ModuleMgr::Get()->InitPageModule();
 175         CPDF_ModuleMgr::Get()->InitRenderModule();
 176 #ifdef FOXIT_CHROME_BUILD
 177         CPDF_ModuleMgr * pModuleMgr = CPDF_ModuleMgr::Get();
 178         if ( pModuleMgr )
 179         {
 180                 pModuleMgr->LoadEmbeddedGB1CMaps();
 181                 pModuleMgr->LoadEmbeddedJapan1CMaps();
 182                 pModuleMgr->LoadEmbeddedCNS1CMaps();
 183                 pModuleMgr->LoadEmbeddedKorea1CMaps();
 184         }
 185 #endif
 186 #endif
 187
 188 #ifdef _WIN32
 189         // Get module path
 190         TCHAR app_path[MAX_PATH];
 191         ::GetModuleFileName((HINSTANCE)hInstance, app_path, MAX_PATH);
 192         size_t len = _tcslen(app_path);
 193         for (size_t i = len; i >= 0; i --)
 194                 if (app_path[i] == '\\') {
 195                         app_path[i] = 0;
 196                         break;
 197                 }
 198
 199 #ifdef _UNICODE
 200                 #ifndef _FXSDK_OPENSOURCE_
 201                 CPDF_ModuleMgr::Get()->SetModulePath(NULL, CFX_ByteString::FromUnicode(app_path));
 202                 #endif
 203 #else
 204 #ifndef _FXSDK_OPENSOURCE_
 205                 CPDF_ModuleMgr::Get()->SetModulePath(NULL, app_path);
 206 #endif
 207 #endif
 208 #endif
 209 }
 210
 211
 212 DLLEXPORT void STDCALL FPDF_DestroyLibrary()
 213 {
 214
 215 #if _FX_OS_ == _FX_LINUX_EMBEDDED_
 216         if (g_pFontMapper) delete g_pFontMapper;
 217 #endif
 218 #ifdef API5
 219         g_pModuleMgr->Destroy();
 220 #else
 221         CPDF_ModuleMgr::Destroy();
 222         CFX_GEModule::Destroy();
 223         g_pCodecModule->Destroy();
 224 #endif
 225 #ifndef _FXSDK_OPENSOURCE_
 226         FXMEM_CollectAll(FXMEM_GetDefaultMgr());
 227 #else
 228         FXMEM_DestroyFoxitMgr(g_pFoxitMgr);
 229 #endif
 230 }
 231
 232 #ifndef _WIN32
 233 int g_LastError;
 234 void SetLastError(int err)
 235 {
 236         g_LastError = err;
 237 }
 238
 239 int GetLastError()
 240 {
 241         return g_LastError;
 242 }
 243 #endif
 244
 245 void ProcessParseError(FX_DWORD err_code)
 246 {
 247         // Translate FPDFAPI error code to FPDFVIEW error code
 248         switch (err_code) {
 249                 case PDFPARSE_ERROR_FILE:
 250                         err_code = FPDF_ERR_FILE;
 251                         break;
 252                 case PDFPARSE_ERROR_FORMAT:
 253                         err_code = FPDF_ERR_FORMAT;
 254                         break;
 255                 case PDFPARSE_ERROR_PASSWORD:
 256                         err_code = FPDF_ERR_PASSWORD;
 257                         break;
 258                 case PDFPARSE_ERROR_HANDLER:
 259                         err_code = FPDF_ERR_SECURITY;
 260                         break;
 261         }
 262         SetLastError(err_code);
 263 }
 264
 265 DLLEXPORT void  STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable)
 266 {
 267         return FSDK_SetSandBoxPolicy(policy, enable);
 268 }
 269
 270 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path, FPDF_BYTESTRING password)
 271 {
 272         CPDF_Parser* pParser = FX_NEW CPDF_Parser;
 273         pParser->SetPassword(password);
 274         try {
 275                 FX_DWORD err_code = pParser->StartParse((FX_LPCSTR)file_path);
 276                 if (err_code) {
 277                         delete pParser;
 278                         ProcessParseError(err_code);
 279                         return NULL;
 280                 }
 281         }
 282         catch (...) {
 283                 delete pParser;
 284                 SetLastError(FPDF_ERR_UNKNOWN);
 285                 return NULL;
 286         }
 287         return pParser->GetDocument();
 288 }
 289
 290 extern void CheckUnSupportError(CPDF_Document * pDoc, FX_DWORD err_code);
 291
 292 class CMemFile: public IFX_FileRead, public CFX_Object
 293 {
 294 public:
 295         CMemFile(FX_BYTE* pBuf, FX_FILESIZE size):m_pBuf(pBuf),m_size(size) {}
 296
 297         virtual void                    Release() {delete this;}
 298         virtual FX_FILESIZE             GetSize() {return m_size;}
 299         virtual FX_BOOL                 ReadBlock(void* buffer, FX_FILESIZE offset, size_t size)
 300         {
 301                 if(offset+size > (FX_DWORD)m_size) return FALSE;
 302                 FXSYS_memcpy(buffer, m_pBuf+offset, size);
 303                 return TRUE;
 304         }
 305 private:
 306         FX_BYTE* m_pBuf;
 307         FX_FILESIZE m_size;
 308 };
 309 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadMemDocument(const void* data_buf, int size, FPDF_BYTESTRING password)
 310 {
 311         CPDF_Parser* pParser = FX_NEW CPDF_Parser;
 312         pParser->SetPassword(password);
 313         try {
 314                 CMemFile* pMemFile = FX_NEW CMemFile((FX_BYTE*)data_buf, size);
 315                 FX_DWORD err_code = pParser->StartParse(pMemFile);
 316                 if (err_code) {
 317                         delete pParser;
 318                         ProcessParseError(err_code);
 319                         return NULL;
 320                 }
 321                 CPDF_Document * pDoc = NULL;
 322                 pDoc = pParser?pParser->GetDocument():NULL;
 323                 CheckUnSupportError(pDoc, err_code);
 324         }
 325         catch (...) {
 326                 delete pParser;
 327                 SetLastError(FPDF_ERR_UNKNOWN);
 328                 return NULL;
 329         }
 330         return pParser->GetDocument();
 331 }
 332
 333 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess, FPDF_BYTESTRING password)
 334 {
 335         CPDF_Parser* pParser = FX_NEW CPDF_Parser;
 336         pParser->SetPassword(password);
 337         CPDF_CustomAccess* pFile = FX_NEW CPDF_CustomAccess(pFileAccess);
 338         try {
 339                 FX_DWORD err_code = pParser->StartParse(pFile);
 340                 if (err_code) {
 341                         delete pParser;
 342                         ProcessParseError(err_code);
 343                         return NULL;
 344                 }
 345                 CPDF_Document * pDoc = NULL;
 346                 pDoc = pParser?pParser->GetDocument():NULL;
 347                 CheckUnSupportError(pDoc, err_code);
 348         }
 349         catch (...) {
 350                 delete pParser;
 351                 SetLastError(FPDF_ERR_UNKNOWN);
 352                 return NULL;
 353         }
 354         return pParser->GetDocument();
 355 }
 356
 357 DLLEXPORT FPDF_BOOL STDCALL FPDF_GetFileVersion(FPDF_DOCUMENT doc, int* fileVersion)
 358 {
 359         if(!doc||!fileVersion) return FALSE;
 360         *fileVersion = 0;
 361         CPDF_Document* pDoc = (CPDF_Document*)doc;
 362         CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser();
 363         if(!pParser)
 364                 return FALSE;
 365         *fileVersion = pParser->GetFileVersion();
 366         return TRUE;
 367 }
 368
 369 // jabdelmalek: changed return type from FX_DWORD to build on Linux (and match header).
 370 DLLEXPORT unsigned long STDCALL FPDF_GetDocPermissions(FPDF_DOCUMENT document)
 371 {
 372         if (document == NULL) return 0;
 373         CPDF_Document*pDoc = (CPDF_Document*)document;
 374         CPDF_Parser* pParser =  (CPDF_Parser*)pDoc->GetParser();
 375         CPDF_Dictionary* pDict = pParser->GetEncryptDict();
 376         if (pDict == NULL) return (FX_DWORD)-1;
 377
 378         return pDict->GetInteger("P");
 379 }
 380
 381 DLLEXPORT int STDCALL FPDF_GetPageCount(FPDF_DOCUMENT document)
 382 {
 383         if (document == NULL) return 0;
 384         return ((CPDF_Document*)document)->GetPageCount();
 385 }
 386
 387 DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, int page_index)
 388 {
 389         if (document == NULL) return NULL;
 390         if (page_index < 0 || page_index >= FPDF_GetPageCount(document)) return NULL;
 391 //      CPDF_Parser* pParser = (CPDF_Parser*)document;
 392         CPDF_Document* pDoc = (CPDF_Document*)document;
 393         if (pDoc == NULL) return NULL;
 394         CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
 395         if (pDict == NULL) return NULL;
 396         CPDF_Page* pPage = FX_NEW CPDF_Page;
 397         pPage->Load(pDoc, pDict);
 398         try {
 399                 pPage->ParseContent();
 400         }
 401         catch (...) {
 402                 delete pPage;
 403                 return NULL;
 404         }
 405
 406 //      CheckUnSupportError(pDoc, 0);
 407
 408         return pPage;
 409 }
 410
 411 DLLEXPORT double STDCALL FPDF_GetPageWidth(FPDF_PAGE page)
 412 {
 413         if (!page)
 414                 return 0.0;
 415         return ((CPDF_Page*)page)->GetPageWidth();
 416 }
 417
 418 DLLEXPORT double STDCALL FPDF_GetPageHeight(FPDF_PAGE page)
 419 {
 420         if (!page) return 0.0;
 421         return ((CPDF_Page*)page)->GetPageHeight();
 422 }
 423
 424 void DropContext(void* data)
 425 {
 426         delete (CRenderContext*)data;
 427 }
 428
 429 void FPDF_RenderPage_Retail(CRenderContext* pContext, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
 430                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause  );
 431 void (*Func_RenderPage)(CRenderContext*, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
 432                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause  ) = FPDF_RenderPage_Retail;
 433
 434 #if defined(_DEBUG) || defined(DEBUG)
 435 #define DEBUG_TRACE
 436 #endif
 437
 438 #if defined(_WIN32)
 439 DLLEXPORT void STDCALL FPDF_RenderPage(HDC dc, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
 440                                                 int rotate, int flags)
 441 {
 442         if (page==NULL) return;
 443         CPDF_Page* pPage = (CPDF_Page*)page;
 444
 445         CRenderContext* pContext = FX_NEW CRenderContext;
 446         pPage->SetPrivateData((void*)1, pContext, DropContext);
 447
 448 #ifndef _WIN32_WCE
 449         CFX_DIBitmap* pBitmap = NULL;
 450         FX_BOOL bBackgroundAlphaNeeded=FALSE;
 451         bBackgroundAlphaNeeded = pPage->BackgroundAlphaNeeded();
 452         if (bBackgroundAlphaNeeded)
 453         {
 454
 455                 pBitmap = FX_NEW CFX_DIBitmap;
 456                 pBitmap->Create(size_x, size_y, FXDIB_Argb);
 457                 pBitmap->Clear(0x00ffffff);
 458 #ifdef _SKIA_SUPPORT_
 459                 pContext->m_pDevice = FX_NEW CFX_SkiaDevice;
 460                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap);
 461 #else
 462                 pContext->m_pDevice = FX_NEW CFX_FxgeDevice;
 463                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap);
 464 #endif
 465         }
 466         else
 467         pContext->m_pDevice = FX_NEW CFX_WindowsDevice(dc);
 468         if (flags & FPDF_NO_CATCH)
 469                 Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
 470         else {
 471                 try {
 472                         Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
 473                 } catch (...) {
 474                 }
 475         }
 476         if (bBackgroundAlphaNeeded)
 477         {
 478                 if (pBitmap)
 479                 {
 480                         CFX_WindowsDevice WinDC(dc);
 481
 482                         if (WinDC.GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER)
 483                         {
 484                                 CFX_DIBitmap* pDst = FX_NEW CFX_DIBitmap;
 485                                 pDst->Create(pBitmap->GetWidth(), pBitmap->GetHeight(),FXDIB_Rgb32);
 486                                 FXSYS_memcpy(pDst->GetBuffer(), pBitmap->GetBuffer(), pBitmap->GetPitch()*pBitmap->GetHeight());
 487 //                              WinDC.SetDIBits(pDst,0,0);
 488                                 WinDC.StretchDIBits(pDst,0,0,size_x*2,size_y*2);
 489                                 delete pDst;
 490                         }
 491                         else
 492                                 WinDC.SetDIBits(pBitmap,0,0);
 493
 494                 }
 495         }
 496 #else
 497         // get clip region
 498         RECT rect, cliprect;
 499         rect.left = start_x;
 500         rect.top = start_y;
 501         rect.right = start_x + size_x;
 502         rect.bottom = start_y + size_y;
 503         GetClipBox(dc, &cliprect);
 504         IntersectRect(&rect, &rect, &cliprect);
 505         int width = rect.right - rect.left;
 506         int height = rect.bottom - rect.top;
 507
 508 #ifdef DEBUG_TRACE
 509         {
 510                 char str[128];
 511                 sprintf(str, "Rendering DIB %d x %d", width, height);
 512                 CPDF_ModuleMgr::Get()->ReportError(999, str);
 513         }
 514 #endif
 515
 516         // Create a DIB section
 517         LPVOID pBuffer;
 518         BITMAPINFOHEADER bmih;
 519         FXSYS_memset(&bmih, 0, sizeof bmih);
 520         bmih.biSize = sizeof bmih;
 521         bmih.biBitCount = 24;
 522         bmih.biHeight = -height;
 523         bmih.biPlanes = 1;
 524         bmih.biWidth = width;
 525         pContext->m_hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, &pBuffer, NULL, 0);
 526         if (pContext->m_hBitmap == NULL) {
 527 #if defined(DEBUG) || defined(_DEBUG)
 528                 char str[128];
 529                 sprintf(str, "Error CreateDIBSection: %d x %d, error code = %d", width, height, GetLastError());
 530                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, str);
 531 #else
 532                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, NULL);
 533 #endif
 534         }
 535         FXSYS_memset(pBuffer, 0xff, height*((width*3+3)/4*4));
 536
 537 #ifdef DEBUG_TRACE
 538         {
 539                 CPDF_ModuleMgr::Get()->ReportError(999, "DIBSection created");
 540         }
 541 #endif
 542
 543         // Create a device with this external buffer
 544         pContext->m_pBitmap = FX_NEW CFX_DIBitmap;
 545         pContext->m_pBitmap->Create(width, height, FXDIB_Rgb, (FX_LPBYTE)pBuffer);
 546         pContext->m_pDevice = FX_NEW CPDF_FxgeDevice;
 547         ((CPDF_FxgeDevice*)pContext->m_pDevice)->Attach(pContext->m_pBitmap);
 548
 549 #ifdef DEBUG_TRACE
 550         CPDF_ModuleMgr::Get()->ReportError(999, "Ready for PDF rendering");
 551 #endif
 552
 553         // output to bitmap device
 554         if (flags & FPDF_NO_CATCH)
 555                 Func_RenderPage(pContext, page, start_x - rect.left, start_y - rect.top, size_x, size_y, rotate, flags);
 556         else {
 557                 try {
 558                         Func_RenderPage(pContext, page, start_x - rect.left, start_y - rect.top, size_x, size_y, rotate, flags);
 559                 } catch (...) {
 560                 }
 561         }
 562
 563 #ifdef DEBUG_TRACE
 564         CPDF_ModuleMgr::Get()->ReportError(999, "Finished PDF rendering");
 565 #endif
 566
 567         // Now output to real device
 568         HDC hMemDC = CreateCompatibleDC(dc);
 569         if (hMemDC == NULL) {
 570 #if defined(DEBUG) || defined(_DEBUG)
 571                 char str[128];
 572                 sprintf(str, "Error CreateCompatibleDC. Error code = %d", GetLastError());
 573                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, str);
 574 #else
 575                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, NULL);
 576 #endif
 577         }
 578
 579         HGDIOBJ hOldBitmap = SelectObject(hMemDC, pContext->m_hBitmap);
 580
 581 #ifdef DEBUG_TRACE
 582         CPDF_ModuleMgr::Get()->ReportError(999, "Ready for screen rendering");
 583 #endif
 584
 585         BitBlt(dc, rect.left, rect.top, width, height, hMemDC, 0, 0, SRCCOPY);
 586         SelectObject(hMemDC, hOldBitmap);
 587         DeleteDC(hMemDC);
 588
 589 #ifdef DEBUG_TRACE
 590         CPDF_ModuleMgr::Get()->ReportError(999, "Finished screen rendering");
 591 #endif
 592
 593 #endif
 594         if (bBackgroundAlphaNeeded)
 595         {
 596                 if (pBitmap)
 597                         delete pBitmap;
 598                 pBitmap = NULL;
 599         }
 600         delete pContext;
 601         pPage->RemovePrivateData((void*)1);
 602 }
 603 #endif
 604
 605 DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap, FPDF_PAGE page, int start_x, int start_y,
 606                                                 int size_x, int size_y, int rotate, int flags)
 607 {
 608         if (bitmap == NULL || page == NULL) return;
 609         CPDF_Page* pPage = (CPDF_Page*)page;
 610
 611
 612         CRenderContext* pContext = FX_NEW CRenderContext;
 613         pPage->SetPrivateData((void*)1, pContext, DropContext);
 614 #ifdef _SKIA_SUPPORT_
 615         pContext->m_pDevice = FX_NEW CFX_SkiaDevice;
 616
 617         if (flags & FPDF_REVERSE_BYTE_ORDER)
 618                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap,0,TRUE);
 619         else
 620                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
 621 #else
 622         pContext->m_pDevice = FX_NEW CFX_FxgeDevice;
 623
 624         if (flags & FPDF_REVERSE_BYTE_ORDER)
 625                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap,0,TRUE);
 626         else
 627                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
 628 #endif
 629         if (flags & FPDF_NO_CATCH)
 630                 Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
 631         else {
 632                 try {
 633                         Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
 634                 } catch (...) {
 635                 }
 636         }
 637
 638         delete pContext;
 639         pPage->RemovePrivateData((void*)1);
 640 }
 641
 642 DLLEXPORT void STDCALL FPDF_ClosePage(FPDF_PAGE page)
 643 {
 644         if (!page) return;
 645         delete (CPDF_Page*)page;
 646
 647 }
 648
 649 DLLEXPORT void STDCALL FPDF_CloseDocument(FPDF_DOCUMENT document)
 650 {
 651         if (!document)
 652                 return;
 653         CPDF_Document* pDoc = (CPDF_Document*)document;
 654         CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser();
 655         if (pParser == NULL)
 656         {
 657                 delete pDoc;
 658                 return;
 659         }
 660         delete pParser;
 661 //      delete pDoc;
 662 }
 663
 664 DLLEXPORT unsigned long STDCALL FPDF_GetLastError()
 665 {
 666         return GetLastError();
 667 }
 668
 669 DLLEXPORT void STDCALL FPDF_DeviceToPage(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
 670                                                 int rotate, int device_x, int device_y, double* page_x, double* page_y)
 671 {
 672         if (page == NULL || page_x == NULL || page_y == NULL) return;
 673         CPDF_Page* pPage = (CPDF_Page*)page;
 674
 675         CPDF_Matrix page2device;
 676         pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate);
 677         CPDF_Matrix device2page;
 678         device2page.SetReverse(page2device);
 679
 680         FX_FLOAT page_x_f, page_y_f;
 681         device2page.Transform((FX_FLOAT)(device_x), (FX_FLOAT)(device_y), page_x_f, page_y_f);
 682
 683         *page_x = (page_x_f);
 684         *page_y = (page_y_f);
 685 }
 686
 687 DLLEXPORT void STDCALL FPDF_PageToDevice(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
 688                                                 int rotate, double page_x, double page_y, int* device_x, int* device_y)
 689 {
 690         if (page == NULL || device_x == NULL || device_y == NULL) return;
 691         CPDF_Page* pPage = (CPDF_Page*)page;
 692
 693         CPDF_Matrix page2device;
 694         pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate);
 695
 696         FX_FLOAT device_x_f, device_y_f;
 697         page2device.Transform(((FX_FLOAT)page_x), ((FX_FLOAT)page_y), device_x_f, device_y_f);
 698
 699         *device_x = FXSYS_round(device_x_f);
 700         *device_y = FXSYS_round(device_y_f);
 701 }
 702
 703 DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_Create(int width, int height, int alpha)
 704 {
 705         CFX_DIBitmap* pBitmap = FX_NEW CFX_DIBitmap;
 706         pBitmap->Create(width, height, alpha ? FXDIB_Argb : FXDIB_Rgb32);
 707         return pBitmap;
 708 }
 709
 710 DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_CreateEx(int width, int height, int format, void* first_scan, int stride)
 711 {
 712         FXDIB_Format fx_format;
 713         switch (format) {
 714                 case FPDFBitmap_Gray:
 715                         fx_format = FXDIB_8bppRgb;
 716                         break;
 717                 case FPDFBitmap_BGR:
 718                         fx_format = FXDIB_Rgb;
 719                         break;
 720                 case FPDFBitmap_BGRx:
 721                         fx_format = FXDIB_Rgb32;
 722                         break;
 723                 case FPDFBitmap_BGRA:
 724                         fx_format = FXDIB_Argb;
 725                         break;
 726                 default:
 727                         return NULL;
 728         }
 729         CFX_DIBitmap* pBitmap = FX_NEW CFX_DIBitmap;
 730         pBitmap->Create(width, height, fx_format, (FX_LPBYTE)first_scan, stride);
 731         return pBitmap;
 732 }
 733
 734 DLLEXPORT void STDCALL FPDFBitmap_FillRect(FPDF_BITMAP bitmap, int left, int top, int width, int height,
 735                                                                         int red, int green, int blue, int alpha)
 736 {
 737         if (bitmap == NULL) return;
 738 #ifdef _SKIA_SUPPORT_
 739         CFX_SkiaDevice device;
 740 #else
 741         CFX_FxgeDevice device;
 742 #endif
 743         device.Attach((CFX_DIBitmap*)bitmap);
 744         if (!((CFX_DIBitmap*)bitmap)->HasAlpha()) alpha = 255;
 745         FX_RECT rect(left, top, left+width, top+height);
 746         device.FillRect(&rect, FXARGB_MAKE(alpha, red, green, blue));
 747 }
 748
 749 DLLEXPORT void* STDCALL FPDFBitmap_GetBuffer(FPDF_BITMAP bitmap)
 750 {
 751         if (bitmap == NULL) return NULL;
 752         return ((CFX_DIBitmap*)bitmap)->GetBuffer();
 753 }
 754
 755 DLLEXPORT int STDCALL FPDFBitmap_GetWidth(FPDF_BITMAP bitmap)
 756 {
 757         if (bitmap == NULL) return 0;
 758         return ((CFX_DIBitmap*)bitmap)->GetWidth();
 759 }
 760
 761 DLLEXPORT int STDCALL FPDFBitmap_GetHeight(FPDF_BITMAP bitmap)
 762 {
 763         if (bitmap == NULL) return 0;
 764         return ((CFX_DIBitmap*)bitmap)->GetHeight();
 765 }
 766
 767 DLLEXPORT int STDCALL FPDFBitmap_GetStride(FPDF_BITMAP bitmap)
 768 {
 769         if (bitmap == NULL) return 0;
 770         return ((CFX_DIBitmap*)bitmap)->GetPitch();
 771 }
 772
 773 DLLEXPORT void STDCALL FPDFBitmap_Destroy(FPDF_BITMAP bitmap)
 774 {
 775         if (bitmap == NULL) return;
 776         delete (CFX_DIBitmap*)bitmap;
 777 }
 778
 779 void FPDF_RenderPage_Retail(CRenderContext* pContext, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
 780                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause )
 781 {
 782 //#ifdef _LICENSED_BUILD_
 783         CPDF_Page* pPage = (CPDF_Page*)page;
 784         if (pPage == NULL) return;
 785
 786         if (!pContext->m_pOptions)
 787                 pContext->m_pOptions = new CPDF_RenderOptions;
 788 //      CPDF_RenderOptions options;
 789         if (flags & FPDF_LCD_TEXT)
 790                 pContext->m_pOptions->m_Flags |= RENDER_CLEARTYPE;
 791         else
 792                 pContext->m_pOptions->m_Flags &= ~RENDER_CLEARTYPE;
 793         if (flags & FPDF_NO_NATIVETEXT)
 794                 pContext->m_pOptions->m_Flags |= RENDER_NO_NATIVETEXT;
 795         if (flags & FPDF_RENDER_LIMITEDIMAGECACHE)
 796                 pContext->m_pOptions->m_Flags |= RENDER_LIMITEDIMAGECACHE;
 797         if (flags & FPDF_RENDER_FORCEHALFTONE)
 798                 pContext->m_pOptions->m_Flags |= RENDER_FORCE_HALFTONE;
 799         //Grayscale output
 800         if (flags & FPDF_GRAYSCALE)
 801         {
 802                 pContext->m_pOptions->m_ColorMode = RENDER_COLOR_GRAY;
 803                 pContext->m_pOptions->m_ForeColor = 0;
 804                 pContext->m_pOptions->m_BackColor = 0xffffff;
 805         }
 806         const CPDF_OCContext::UsageType usage = (flags & FPDF_PRINTING) ? CPDF_OCContext::Print : CPDF_OCContext::View;
 807
 808         pContext->m_pOptions->m_AddFlags = flags >> 8;
 809
 810         pContext->m_pOptions->m_pOCContext = new CPDF_OCContext(pPage->m_pDocument, usage);
 811
 812
 813         CFX_AffineMatrix matrix;
 814         pPage->GetDisplayMatrix(matrix, start_x, start_y, size_x, size_y, rotate);
 815
 816         FX_RECT clip;
 817         clip.left = start_x;
 818         clip.right = start_x + size_x;
 819         clip.top = start_y;
 820         clip.bottom = start_y + size_y;
 821         pContext->m_pDevice->SaveState();
 822         pContext->m_pDevice->SetClip_Rect(&clip);
 823
 824         pContext->m_pContext = FX_NEW CPDF_RenderContext;
 825         pContext->m_pContext->Create(pPage);
 826         pContext->m_pContext->AppendObjectList(pPage, &matrix);
 827
 828         if (flags & FPDF_ANNOT) {
 829                 pContext->m_pAnnots = FX_NEW CPDF_AnnotList(pPage);
 830                 FX_BOOL bPrinting = pContext->m_pDevice->GetDeviceClass() != FXDC_DISPLAY;
 831                 pContext->m_pAnnots->DisplayAnnots(pPage, pContext->m_pContext, bPrinting, &matrix, TRUE, NULL);
 832         }
 833
 834         pContext->m_pRenderer = FX_NEW CPDF_ProgressiveRenderer;
 835         pContext->m_pRenderer->Start(pContext->m_pContext, pContext->m_pDevice, pContext->m_pOptions, pause);
 836         if (bNeedToRestore)
 837         {
 838           pContext->m_pDevice->RestoreState();
 839         }
 840
 841 //#endif
 842 }
 843
 844 DLLEXPORT int STDCALL FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document, int page_index, double* width, double* height)
 845 {
 846         CPDF_Document* pDoc = (CPDF_Document*)document;
 847         if(pDoc == NULL)
 848                 return FALSE;
 849
 850         CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
 851         if (pDict == NULL) return FALSE;
 852
 853         CPDF_Page page;
 854         page.Load(pDoc, pDict);
 855         *width = page.GetPageWidth();
 856         *height = page.GetPageHeight();
 857
 858         return TRUE;
 859 }
 860
 861 DLLEXPORT FPDF_BOOL STDCALL FPDF_VIEWERREF_GetPrintScaling(FPDF_DOCUMENT document)
 862 {
 863         CPDF_Document* pDoc = (CPDF_Document*)document;
 864         if (!pDoc) return TRUE;
 865         CPDF_ViewerPreferences viewRef(pDoc);
 866         return viewRef.PrintScaling();
 867 }
 868
 869 DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document,FPDF_BYTESTRING name)
 870 {
 871         if (document == NULL)
 872                 return NULL;
 873         if (name == NULL || name[0] == 0)
 874                 return NULL;
 875
 876         CPDF_Document* pDoc = (CPDF_Document*)document;
 877         CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests"));
 878         return name_tree.LookupNamedDest(pDoc, name);
 879 }