af24e71b941c4fef170cc81d39a449821d07ae73
[pdfium.git] / 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 #include "../../third_party/numerics/safe_conversions_impl.h"
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     FX_SAFE_DWORD newPos = size;
39     newPos += pos;
40     if (!newPos.IsValid() || newPos.ValueOrDie() > m_FileAccess.m_FileLen) {
41         return FALSE;
42     }
43     return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, pos, pBuf, size);
44 }
45
46 FX_BOOL CPDF_CustomAccess::ReadBlock(void* buffer, FX_FILESIZE offset, size_t size)
47 {
48     if (offset < 0) {
49         return FALSE;
50     }
51     FX_SAFE_FILESIZE newPos = base::checked_cast<FX_FILESIZE, size_t>(size);
52     newPos += offset;
53     if (!newPos.IsValid() || newPos.ValueOrDie() > m_FileAccess.m_FileLen) {
54         return FALSE;
55     }
56     return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, offset,(FX_LPBYTE) buffer, size);
57 }
58
59 //0 bit: FPDF_POLICY_MACHINETIME_ACCESS
60 static FX_DWORD foxit_sandbox_policy = 0xFFFFFFFF;
61
62 void FSDK_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable)
63 {
64         switch(policy)
65         {
66         case FPDF_POLICY_MACHINETIME_ACCESS:
67                 {
68                         if(enable)
69                                 foxit_sandbox_policy |= 0x01;
70                         else
71                                 foxit_sandbox_policy &= 0xFFFFFFFE;
72                 }
73                 break;
74         default:
75                 break;
76         }
77 }
78
79 FPDF_BOOL FSDK_IsSandBoxPolicyEnabled(FPDF_DWORD policy)
80 {
81         switch(policy)
82         {
83         case FPDF_POLICY_MACHINETIME_ACCESS:
84                 {
85                         if(foxit_sandbox_policy&0x01)
86                                 return TRUE;
87                         else
88                                 return FALSE;
89                 }
90                 break;
91         default:
92                 break;
93         }
94         return FALSE;
95 }
96
97
98 #ifndef _T
99 #define _T(x) x
100 #endif
101
102 #ifdef API5
103         CPDF_ModuleMgr* g_pModuleMgr = NULL;
104 #else
105         CCodec_ModuleMgr*       g_pCodecModule = NULL;
106 #endif
107
108 //extern CPDFSDK_FormFillApp* g_pFormFillApp;
109
110 #if _FX_OS_ == _FX_LINUX_EMBEDDED_
111 class CFontMapper : public IPDF_FontMapper
112 {
113 public:
114         CFontMapper();
115         virtual ~CFontMapper();
116
117         virtual FT_Face FindSubstFont(
118                                                         CPDF_Document* pDoc,                            // [IN] The PDF document
119                                                         const CFX_ByteString& face_name,        // [IN] Original name
120                                                         FX_BOOL bTrueType,                                      // [IN] TrueType or Type1
121                                                         FX_DWORD flags,                                         // [IN] PDF font flags (see PDF Reference section 5.7.1)
122                                                         int font_weight,                                        // [IN] original font weight. 0 for not specified
123                                                         int CharsetCP,                                          // [IN] code page for charset (see Win32 GetACP())
124                                                         FX_BOOL bVertical,
125                                                         CPDF_SubstFont* pSubstFont                      // [OUT] Subst font data
126                                                 );
127
128         FT_Face m_SysFace;
129 };
130
131 CFontMapper* g_pFontMapper = NULL;
132 #endif          // #if _FX_OS_ == _FX_LINUX_EMBEDDED_
133
134 DLLEXPORT void STDCALL FPDF_InitLibrary(FX_LPVOID hInstance)
135 {
136 #ifdef API5
137         CPDF_ModuleMgr::Create();
138         g_pModuleMgr = CPDF_ModuleMgr::Get();
139          #if _FX_OS_ == _FX_WIN32_MOBILE_ || _FX_OS_ == _FX_LINUX_EMBEDDED_
140                 g_pModuleMgr->InitEmbedded();
141          #ifdef _GB1_CMAPS_
142                 g_pModuleMgr->LoadEmbeddedGB1CMaps();
143          #endif
144          #ifdef _GB1_CMAPS_4_
145                 g_pModuleMgr->LoadEmbeddedGB1CMaps_4();
146          #endif
147          #ifdef _CNS1_CMAPS_
148                 g_pModuleMgr->LoadEmbeddedCNS1CMaps();
149          #endif
150          #ifdef _JAPAN1_CMAPS_
151                 g_pModuleMgr->LoadEmbeddedJapan1CMaps();
152          #endif
153          #ifdef _JAPAN1_CMAPS_6_
154                 g_pModuleMgr->LoadEmbeddedJapan1CMaps_6();
155          #endif
156          #ifdef _KOREA1_CMAPS_
157                 g_pModuleMgr->LoadEmbeddedKorea1CMaps();
158          #endif
159          #ifdef _JPX_DECODER_
160                 g_pModuleMgr->InitJpxModule();
161                 g_pModuleMgr->InitJbig2Module();
162          //     g_pModuleMgr->InitIccModule();
163          #endif
164          #else
165                 g_pModuleMgr->InitDesktop();
166          #endif
167 #else
168         g_pCodecModule = CCodec_ModuleMgr::Create();
169         
170         CFX_GEModule::Create();
171         CFX_GEModule::Get()->SetCodecModule(g_pCodecModule);
172         
173         CPDF_ModuleMgr::Create();
174         CPDF_ModuleMgr::Get()->SetCodecModule(g_pCodecModule);
175         CPDF_ModuleMgr::Get()->InitPageModule();
176         CPDF_ModuleMgr::Get()->InitRenderModule();
177 #ifdef FOXIT_CHROME_BUILD
178         CPDF_ModuleMgr * pModuleMgr = CPDF_ModuleMgr::Get();
179         if ( pModuleMgr )
180         {
181                 pModuleMgr->LoadEmbeddedGB1CMaps();
182                 pModuleMgr->LoadEmbeddedJapan1CMaps();
183                 pModuleMgr->LoadEmbeddedCNS1CMaps();
184                 pModuleMgr->LoadEmbeddedKorea1CMaps();
185         }
186 #endif 
187 #endif
188
189 #ifdef _WIN32
190         // Get module path
191         TCHAR app_path[MAX_PATH];
192         ::GetModuleFileName((HINSTANCE)hInstance, app_path, MAX_PATH);
193         size_t len = _tcslen(app_path);
194         for (size_t i = len; i >= 0; i --)
195                 if (app_path[i] == '\\') {
196                         app_path[i] = 0;
197                         break;
198                 }
199                 
200 #ifdef _UNICODE
201                 #ifndef _FXSDK_OPENSOURCE_
202                 CPDF_ModuleMgr::Get()->SetModulePath(NULL, CFX_ByteString::FromUnicode(app_path));
203                 #endif
204 #else
205 #ifndef _FXSDK_OPENSOURCE_
206                 CPDF_ModuleMgr::Get()->SetModulePath(NULL, app_path);
207 #endif
208 #endif
209 #endif
210 }
211
212
213 DLLEXPORT void STDCALL FPDF_DestroyLibrary()
214 {
215
216 #if _FX_OS_ == _FX_LINUX_EMBEDDED_
217         if (g_pFontMapper) delete g_pFontMapper;
218 #endif
219 #ifdef API5
220         g_pModuleMgr->Destroy();
221 #else
222         CPDF_ModuleMgr::Destroy();
223         CFX_GEModule::Destroy();
224         g_pCodecModule->Destroy();
225 #endif
226 #ifndef _FXSDK_OPENSOURCE_
227         FXMEM_CollectAll(FXMEM_GetDefaultMgr());
228 #else
229
230 #endif
231 }
232
233 #ifndef _WIN32
234 int g_LastError;
235 void SetLastError(int err)
236 {
237         g_LastError = err;
238 }
239
240 int GetLastError()
241 {
242         return g_LastError;
243 }
244 #endif
245
246 void ProcessParseError(FX_DWORD err_code)
247 {
248         // Translate FPDFAPI error code to FPDFVIEW error code
249         switch (err_code) {
250                 case PDFPARSE_ERROR_FILE:
251                         err_code = FPDF_ERR_FILE;
252                         break;
253                 case PDFPARSE_ERROR_FORMAT:
254                         err_code = FPDF_ERR_FORMAT;
255                         break;
256                 case PDFPARSE_ERROR_PASSWORD:
257                         err_code = FPDF_ERR_PASSWORD;
258                         break;
259                 case PDFPARSE_ERROR_HANDLER:
260                         err_code = FPDF_ERR_SECURITY;
261                         break;
262         }
263         SetLastError(err_code);
264 }
265
266 DLLEXPORT void  STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable)
267 {
268         return FSDK_SetSandBoxPolicy(policy, enable);
269 }
270
271 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path, FPDF_BYTESTRING password)
272 {
273         CPDF_Parser* pParser = FX_NEW CPDF_Parser;
274         pParser->SetPassword(password);
275         try {
276                 FX_DWORD err_code = pParser->StartParse((FX_LPCSTR)file_path);
277                 if (err_code) {
278                         delete pParser;
279                         ProcessParseError(err_code);
280                         return NULL;
281                 }
282         }
283         catch (...) {
284                 delete pParser;
285                 SetLastError(FPDF_ERR_UNKNOWN);
286                 return NULL;
287         }
288         return pParser->GetDocument();
289 }
290
291 extern void CheckUnSupportError(CPDF_Document * pDoc, FX_DWORD err_code);
292
293 class CMemFile FX_FINAL: public IFX_FileRead, public CFX_Object
294 {
295 public:
296         CMemFile(FX_BYTE* pBuf, FX_FILESIZE size):m_pBuf(pBuf),m_size(size) {}
297
298         virtual void                    Release() {delete this;}
299         virtual FX_FILESIZE             GetSize() {return m_size;}
300         virtual FX_BOOL                 ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) 
301         {
302         if (offset < 0) {
303             return FALSE;
304         }
305         FX_SAFE_FILESIZE newPos = base::checked_cast<FX_FILESIZE, size_t>(size);
306         newPos += offset;
307         if (!newPos.IsValid() || newPos.ValueOrDie() > (FX_DWORD)m_size) return FALSE;
308                 FXSYS_memcpy(buffer, m_pBuf+offset, size);
309                 return TRUE;
310         }
311 private:
312         FX_BYTE* m_pBuf;
313         FX_FILESIZE m_size;
314 };
315 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadMemDocument(const void* data_buf, int size, FPDF_BYTESTRING password)
316 {
317         CPDF_Parser* pParser = FX_NEW CPDF_Parser;
318         pParser->SetPassword(password);
319         try {
320                 CMemFile* pMemFile = FX_NEW CMemFile((FX_BYTE*)data_buf, size);
321                 FX_DWORD err_code = pParser->StartParse(pMemFile);
322                 if (err_code) {
323                         delete pParser;
324                         ProcessParseError(err_code);
325                         return NULL;
326                 }
327                 CPDF_Document * pDoc = NULL;
328                 pDoc = pParser?pParser->GetDocument():NULL;
329                 CheckUnSupportError(pDoc, err_code);
330         }
331         catch (...) {
332                 delete pParser;
333                 SetLastError(FPDF_ERR_UNKNOWN);
334                 return NULL;
335         }
336         return pParser->GetDocument();
337 }
338
339 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess, FPDF_BYTESTRING password)
340 {
341         CPDF_Parser* pParser = FX_NEW CPDF_Parser;
342         pParser->SetPassword(password);
343         CPDF_CustomAccess* pFile = FX_NEW CPDF_CustomAccess(pFileAccess);
344         try {
345                 FX_DWORD err_code = pParser->StartParse(pFile);
346                 if (err_code) {
347                         delete pParser;
348                         ProcessParseError(err_code);
349                         return NULL;
350                 }
351                 CPDF_Document * pDoc = NULL;
352                 pDoc = pParser?pParser->GetDocument():NULL;
353                 CheckUnSupportError(pDoc, err_code);
354         }
355         catch (...) {
356                 delete pParser;
357                 SetLastError(FPDF_ERR_UNKNOWN);
358                 return NULL;
359         }
360         return pParser->GetDocument();
361 }
362
363 DLLEXPORT FPDF_BOOL STDCALL FPDF_GetFileVersion(FPDF_DOCUMENT doc, int* fileVersion)
364 {
365         if(!doc||!fileVersion) return FALSE;
366         *fileVersion = 0;
367         CPDF_Document* pDoc = (CPDF_Document*)doc;
368         CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser();
369         if(!pParser)
370                 return FALSE;
371         *fileVersion = pParser->GetFileVersion();
372         return TRUE;
373 }
374
375 // jabdelmalek: changed return type from FX_DWORD to build on Linux (and match header).
376 DLLEXPORT unsigned long STDCALL FPDF_GetDocPermissions(FPDF_DOCUMENT document)
377 {
378         if (document == NULL) return 0;
379         CPDF_Document*pDoc = (CPDF_Document*)document;
380         CPDF_Parser* pParser =  (CPDF_Parser*)pDoc->GetParser();
381         CPDF_Dictionary* pDict = pParser->GetEncryptDict();
382         if (pDict == NULL) return (FX_DWORD)-1;
383
384         return pDict->GetInteger("P");
385 }
386
387 DLLEXPORT int STDCALL FPDF_GetPageCount(FPDF_DOCUMENT document)
388 {
389         if (document == NULL) return 0;
390         return ((CPDF_Document*)document)->GetPageCount();
391 }
392
393 DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, int page_index)
394 {
395         if (document == NULL) return NULL;
396         if (page_index < 0 || page_index >= FPDF_GetPageCount(document)) return NULL;
397 //      CPDF_Parser* pParser = (CPDF_Parser*)document;
398         CPDF_Document* pDoc = (CPDF_Document*)document;
399         if (pDoc == NULL) return NULL;
400         CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
401         if (pDict == NULL) return NULL;
402         CPDF_Page* pPage = FX_NEW CPDF_Page;
403         pPage->Load(pDoc, pDict);
404         try {
405                 pPage->ParseContent();
406         }
407         catch (...) {
408                 delete pPage;
409                 return NULL;
410         }
411         
412 //      CheckUnSupportError(pDoc, 0);
413
414         return pPage;
415 }
416
417 DLLEXPORT double STDCALL FPDF_GetPageWidth(FPDF_PAGE page)
418 {
419         if (!page)
420                 return 0.0;
421         return ((CPDF_Page*)page)->GetPageWidth();
422 }
423
424 DLLEXPORT double STDCALL FPDF_GetPageHeight(FPDF_PAGE page)
425 {
426         if (!page) return 0.0;
427         return ((CPDF_Page*)page)->GetPageHeight();
428 }
429
430 void DropContext(void* data)
431 {
432         delete (CRenderContext*)data;
433 }
434
435 void FPDF_RenderPage_Retail(CRenderContext* pContext, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
436                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause  );
437 void (*Func_RenderPage)(CRenderContext*, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
438                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause  ) = FPDF_RenderPage_Retail;
439
440 #if defined(_DEBUG) || defined(DEBUG)
441 #define DEBUG_TRACE
442 #endif
443
444 #if defined(_WIN32)
445 DLLEXPORT void STDCALL FPDF_RenderPage(HDC dc, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
446                                                 int rotate, int flags)
447 {
448         if (page==NULL) return;
449         CPDF_Page* pPage = (CPDF_Page*)page;
450
451         CRenderContext* pContext = FX_NEW CRenderContext;
452         pPage->SetPrivateData((void*)1, pContext, DropContext);
453
454 #ifndef _WIN32_WCE
455         CFX_DIBitmap* pBitmap = NULL;
456         FX_BOOL bBackgroundAlphaNeeded=FALSE;
457         bBackgroundAlphaNeeded = pPage->BackgroundAlphaNeeded();
458         if (bBackgroundAlphaNeeded)
459         {
460                 
461                 pBitmap = FX_NEW CFX_DIBitmap;
462                 pBitmap->Create(size_x, size_y, FXDIB_Argb);
463                 pBitmap->Clear(0x00ffffff);
464 #ifdef _SKIA_SUPPORT_
465                 pContext->m_pDevice = FX_NEW CFX_SkiaDevice;
466                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap);
467 #else
468                 pContext->m_pDevice = FX_NEW CFX_FxgeDevice;
469                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap);
470 #endif
471         }
472         else
473             pContext->m_pDevice = FX_NEW CFX_WindowsDevice(dc);
474         if (flags & FPDF_NO_CATCH)
475                 Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
476         else {
477                 try {
478                         Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
479                 } catch (...) {
480                 }
481         }
482         if (bBackgroundAlphaNeeded) 
483         {
484                 if (pBitmap)
485                 {
486                         CFX_WindowsDevice WinDC(dc);
487                         
488                         if (WinDC.GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER)
489                         {
490                                 CFX_DIBitmap* pDst = FX_NEW CFX_DIBitmap;
491                                 pDst->Create(pBitmap->GetWidth(), pBitmap->GetHeight(),FXDIB_Rgb32);
492                                 FXSYS_memcpy(pDst->GetBuffer(), pBitmap->GetBuffer(), pBitmap->GetPitch()*pBitmap->GetHeight());
493 //                              WinDC.SetDIBits(pDst,0,0);
494                                 WinDC.StretchDIBits(pDst,0,0,size_x,size_y);
495                                 delete pDst;
496                         }
497                         else
498                                 WinDC.SetDIBits(pBitmap,0,0);
499
500                 }
501         }
502 #else
503         // get clip region
504         RECT rect, cliprect;
505         rect.left = start_x;
506         rect.top = start_y;
507         rect.right = start_x + size_x;
508         rect.bottom = start_y + size_y;
509         GetClipBox(dc, &cliprect);
510         IntersectRect(&rect, &rect, &cliprect);
511         int width = rect.right - rect.left;
512         int height = rect.bottom - rect.top;
513
514 #ifdef DEBUG_TRACE
515         {
516                 char str[128];
517                 sprintf(str, "Rendering DIB %d x %d", width, height);
518                 CPDF_ModuleMgr::Get()->ReportError(999, str);
519         }
520 #endif
521
522         // Create a DIB section
523         LPVOID pBuffer;
524         BITMAPINFOHEADER bmih;
525         FXSYS_memset(&bmih, 0, sizeof bmih);
526         bmih.biSize = sizeof bmih;
527         bmih.biBitCount = 24;
528         bmih.biHeight = -height;
529         bmih.biPlanes = 1;
530         bmih.biWidth = width;
531         pContext->m_hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, &pBuffer, NULL, 0);
532         if (pContext->m_hBitmap == NULL) {
533 #if defined(DEBUG) || defined(_DEBUG)
534                 char str[128];
535                 sprintf(str, "Error CreateDIBSection: %d x %d, error code = %d", width, height, GetLastError());
536                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, str);
537 #else
538                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, NULL);
539 #endif
540         }
541         FXSYS_memset(pBuffer, 0xff, height*((width*3+3)/4*4));
542
543 #ifdef DEBUG_TRACE
544         {
545                 CPDF_ModuleMgr::Get()->ReportError(999, "DIBSection created");
546         }
547 #endif
548
549         // Create a device with this external buffer
550         pContext->m_pBitmap = FX_NEW CFX_DIBitmap;
551         pContext->m_pBitmap->Create(width, height, FXDIB_Rgb, (FX_LPBYTE)pBuffer);
552         pContext->m_pDevice = FX_NEW CPDF_FxgeDevice;
553         ((CPDF_FxgeDevice*)pContext->m_pDevice)->Attach(pContext->m_pBitmap);
554         
555 #ifdef DEBUG_TRACE
556         CPDF_ModuleMgr::Get()->ReportError(999, "Ready for PDF rendering");
557 #endif
558
559         // output to bitmap device
560         if (flags & FPDF_NO_CATCH)
561                 Func_RenderPage(pContext, page, start_x - rect.left, start_y - rect.top, size_x, size_y, rotate, flags);
562         else {
563                 try {
564                         Func_RenderPage(pContext, page, start_x - rect.left, start_y - rect.top, size_x, size_y, rotate, flags);
565                 } catch (...) {
566                 }
567         }
568
569 #ifdef DEBUG_TRACE
570         CPDF_ModuleMgr::Get()->ReportError(999, "Finished PDF rendering");
571 #endif
572
573         // Now output to real device
574         HDC hMemDC = CreateCompatibleDC(dc);
575         if (hMemDC == NULL) {
576 #if defined(DEBUG) || defined(_DEBUG)
577                 char str[128];
578                 sprintf(str, "Error CreateCompatibleDC. Error code = %d", GetLastError());
579                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, str);
580 #else
581                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, NULL);
582 #endif
583         }
584
585         HGDIOBJ hOldBitmap = SelectObject(hMemDC, pContext->m_hBitmap);
586
587 #ifdef DEBUG_TRACE
588         CPDF_ModuleMgr::Get()->ReportError(999, "Ready for screen rendering");
589 #endif
590
591         BitBlt(dc, rect.left, rect.top, width, height, hMemDC, 0, 0, SRCCOPY);
592         SelectObject(hMemDC, hOldBitmap);
593         DeleteDC(hMemDC);
594
595 #ifdef DEBUG_TRACE
596         CPDF_ModuleMgr::Get()->ReportError(999, "Finished screen rendering");
597 #endif
598
599 #endif
600         if (bBackgroundAlphaNeeded)
601         {
602                 if (pBitmap)
603                         delete pBitmap;
604                 pBitmap = NULL;
605         }
606         delete pContext;
607         pPage->RemovePrivateData((void*)1);
608 }
609 #endif
610
611 DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap, FPDF_PAGE page, int start_x, int start_y, 
612                                                 int size_x, int size_y, int rotate, int flags)
613 {
614         if (bitmap == NULL || page == NULL) return;
615         CPDF_Page* pPage = (CPDF_Page*)page;
616
617
618         CRenderContext* pContext = FX_NEW CRenderContext;
619         pPage->SetPrivateData((void*)1, pContext, DropContext);
620 #ifdef _SKIA_SUPPORT_
621         pContext->m_pDevice = FX_NEW CFX_SkiaDevice;
622
623         if (flags & FPDF_REVERSE_BYTE_ORDER)
624                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap,0,TRUE);
625         else
626                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
627 #else
628         pContext->m_pDevice = FX_NEW CFX_FxgeDevice;
629
630         if (flags & FPDF_REVERSE_BYTE_ORDER)
631                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap,0,TRUE);
632         else
633                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
634 #endif
635         if (flags & FPDF_NO_CATCH)
636                 Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
637         else {
638                 try {
639                         Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
640                 } catch (...) {
641                 }
642         }
643
644         delete pContext;
645         pPage->RemovePrivateData((void*)1);
646 }
647
648 DLLEXPORT void STDCALL FPDF_ClosePage(FPDF_PAGE page)
649 {
650         if (!page) return;
651         delete (CPDF_Page*)page;
652
653 }
654
655 DLLEXPORT void STDCALL FPDF_CloseDocument(FPDF_DOCUMENT document)
656 {
657         if (!document)
658                 return;
659         CPDF_Document* pDoc = (CPDF_Document*)document; 
660         CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser();
661         if (pParser == NULL) 
662         {
663                 delete pDoc;
664                 return;
665         }
666         delete pParser;
667 //      delete pDoc;
668 }
669
670 DLLEXPORT unsigned long STDCALL FPDF_GetLastError()
671 {
672         return GetLastError();
673 }
674
675 DLLEXPORT void STDCALL FPDF_DeviceToPage(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
676                                                 int rotate, int device_x, int device_y, double* page_x, double* page_y)
677 {
678         if (page == NULL || page_x == NULL || page_y == NULL) return;
679         CPDF_Page* pPage = (CPDF_Page*)page;
680
681         CPDF_Matrix page2device;
682         pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate);
683         CPDF_Matrix device2page;
684         device2page.SetReverse(page2device);
685
686         FX_FLOAT page_x_f, page_y_f;
687         device2page.Transform((FX_FLOAT)(device_x), (FX_FLOAT)(device_y), page_x_f, page_y_f);
688
689         *page_x = (page_x_f);
690         *page_y = (page_y_f);
691 }
692
693 DLLEXPORT void STDCALL FPDF_PageToDevice(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
694                                                 int rotate, double page_x, double page_y, int* device_x, int* device_y)
695 {
696         if (page == NULL || device_x == NULL || device_y == NULL) return;
697         CPDF_Page* pPage = (CPDF_Page*)page;
698
699         CPDF_Matrix page2device;
700         pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate);
701
702         FX_FLOAT device_x_f, device_y_f;
703         page2device.Transform(((FX_FLOAT)page_x), ((FX_FLOAT)page_y), device_x_f, device_y_f);
704
705         *device_x = FXSYS_round(device_x_f);
706         *device_y = FXSYS_round(device_y_f);
707 }
708
709 DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_Create(int width, int height, int alpha)
710 {
711         CFX_DIBitmap* pBitmap = FX_NEW CFX_DIBitmap;
712         pBitmap->Create(width, height, alpha ? FXDIB_Argb : FXDIB_Rgb32);
713         return pBitmap;
714 }
715
716 DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_CreateEx(int width, int height, int format, void* first_scan, int stride)
717 {
718         FXDIB_Format fx_format;
719         switch (format) {
720                 case FPDFBitmap_Gray:
721                         fx_format = FXDIB_8bppRgb;
722                         break;
723                 case FPDFBitmap_BGR:
724                         fx_format = FXDIB_Rgb;
725                         break;
726                 case FPDFBitmap_BGRx:
727                         fx_format = FXDIB_Rgb32;
728                         break;
729                 case FPDFBitmap_BGRA:
730                         fx_format = FXDIB_Argb;
731                         break;
732                 default:
733                         return NULL;
734         }
735         CFX_DIBitmap* pBitmap = FX_NEW CFX_DIBitmap;
736         pBitmap->Create(width, height, fx_format, (FX_LPBYTE)first_scan, stride);
737         return pBitmap;
738 }
739
740 DLLEXPORT void STDCALL FPDFBitmap_FillRect(FPDF_BITMAP bitmap, int left, int top, int width, int height, FPDF_DWORD color)
741 {
742         if (bitmap == NULL) return;
743 #ifdef _SKIA_SUPPORT_
744         CFX_SkiaDevice device;
745 #else
746         CFX_FxgeDevice device;
747 #endif
748         device.Attach((CFX_DIBitmap*)bitmap);
749         if (!((CFX_DIBitmap*)bitmap)->HasAlpha()) color |= 0xFF000000;
750         FX_RECT rect(left, top, left+width, top+height);
751         device.FillRect(&rect, color);
752 }
753
754 DLLEXPORT void* STDCALL FPDFBitmap_GetBuffer(FPDF_BITMAP bitmap)
755 {
756         if (bitmap == NULL) return NULL;
757         return ((CFX_DIBitmap*)bitmap)->GetBuffer();
758 }
759
760 DLLEXPORT int STDCALL FPDFBitmap_GetWidth(FPDF_BITMAP bitmap)
761 {
762         if (bitmap == NULL) return 0;
763         return ((CFX_DIBitmap*)bitmap)->GetWidth();
764 }
765
766 DLLEXPORT int STDCALL FPDFBitmap_GetHeight(FPDF_BITMAP bitmap)
767 {
768         if (bitmap == NULL) return 0;
769         return ((CFX_DIBitmap*)bitmap)->GetHeight();
770 }
771
772 DLLEXPORT int STDCALL FPDFBitmap_GetStride(FPDF_BITMAP bitmap)
773 {
774         if (bitmap == NULL) return 0;
775         return ((CFX_DIBitmap*)bitmap)->GetPitch();
776 }
777
778 DLLEXPORT void STDCALL FPDFBitmap_Destroy(FPDF_BITMAP bitmap)
779 {
780         if (bitmap == NULL) return;
781         delete (CFX_DIBitmap*)bitmap;
782 }
783
784 void FPDF_RenderPage_Retail(CRenderContext* pContext, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
785                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause )
786 {
787 //#ifdef _LICENSED_BUILD_
788         CPDF_Page* pPage = (CPDF_Page*)page;
789         if (pPage == NULL) return;
790
791         if (!pContext->m_pOptions)
792                 pContext->m_pOptions = new CPDF_RenderOptions;
793 //      CPDF_RenderOptions options;
794         if (flags & FPDF_LCD_TEXT)
795                 pContext->m_pOptions->m_Flags |= RENDER_CLEARTYPE;
796         else
797                 pContext->m_pOptions->m_Flags &= ~RENDER_CLEARTYPE;
798         if (flags & FPDF_NO_NATIVETEXT)
799                 pContext->m_pOptions->m_Flags |= RENDER_NO_NATIVETEXT;
800         if (flags & FPDF_RENDER_LIMITEDIMAGECACHE)
801                 pContext->m_pOptions->m_Flags |= RENDER_LIMITEDIMAGECACHE;
802         if (flags & FPDF_RENDER_FORCEHALFTONE)
803                 pContext->m_pOptions->m_Flags |= RENDER_FORCE_HALFTONE;
804         //Grayscale output
805         if (flags & FPDF_GRAYSCALE)
806         {
807                 pContext->m_pOptions->m_ColorMode = RENDER_COLOR_GRAY;
808                 pContext->m_pOptions->m_ForeColor = 0;
809                 pContext->m_pOptions->m_BackColor = 0xffffff;
810         }
811         const CPDF_OCContext::UsageType usage = (flags & FPDF_PRINTING) ? CPDF_OCContext::Print : CPDF_OCContext::View;
812
813         pContext->m_pOptions->m_AddFlags = flags >> 8;
814
815         pContext->m_pOptions->m_pOCContext = new CPDF_OCContext(pPage->m_pDocument, usage);
816
817
818         CFX_AffineMatrix matrix;
819         pPage->GetDisplayMatrix(matrix, start_x, start_y, size_x, size_y, rotate); 
820
821         FX_RECT clip;
822         clip.left = start_x;
823         clip.right = start_x + size_x;
824         clip.top = start_y;
825         clip.bottom = start_y + size_y;
826         pContext->m_pDevice->SaveState();
827         pContext->m_pDevice->SetClip_Rect(&clip);
828
829         pContext->m_pContext = FX_NEW CPDF_RenderContext;
830         pContext->m_pContext->Create(pPage);
831         pContext->m_pContext->AppendObjectList(pPage, &matrix);
832
833         if (flags & FPDF_ANNOT) {
834                 pContext->m_pAnnots = FX_NEW CPDF_AnnotList(pPage);
835                 FX_BOOL bPrinting = pContext->m_pDevice->GetDeviceClass() != FXDC_DISPLAY;
836                 pContext->m_pAnnots->DisplayAnnots(pPage, pContext->m_pContext, bPrinting, &matrix, TRUE, NULL);
837         }
838
839         pContext->m_pRenderer = FX_NEW CPDF_ProgressiveRenderer;
840         pContext->m_pRenderer->Start(pContext->m_pContext, pContext->m_pDevice, pContext->m_pOptions, pause);
841         if (bNeedToRestore)
842         {
843           pContext->m_pDevice->RestoreState();
844         }
845         
846 //#endif
847 }
848
849 DLLEXPORT int STDCALL FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document, int page_index, double* width, double* height)
850 {
851         CPDF_Document* pDoc = (CPDF_Document*)document;
852         if(pDoc == NULL)
853                 return FALSE;
854
855         CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
856         if (pDict == NULL) return FALSE;
857
858         CPDF_Page page;
859         page.Load(pDoc, pDict);
860         *width = page.GetPageWidth();
861         *height = page.GetPageHeight();
862
863         return TRUE;
864 }
865
866 DLLEXPORT FPDF_BOOL STDCALL FPDF_VIEWERREF_GetPrintScaling(FPDF_DOCUMENT document)
867 {
868         CPDF_Document* pDoc = (CPDF_Document*)document;
869         if (!pDoc) return TRUE;
870         CPDF_ViewerPreferences viewRef(pDoc);
871         return viewRef.PrintScaling();
872 }
873
874 DLLEXPORT int STDCALL FPDF_VIEWERREF_GetNumCopies(FPDF_DOCUMENT document)
875 {
876     CPDF_Document* pDoc = (CPDF_Document*)document;
877     if (!pDoc) return 1;
878     CPDF_ViewerPreferences viewRef(pDoc);
879     return viewRef.NumCopies();
880 }
881
882 DLLEXPORT FPDF_PAGERANGE STDCALL FPDF_VIEWERREF_GetPrintPageRange(FPDF_DOCUMENT document)
883 {
884     CPDF_Document* pDoc = (CPDF_Document*)document;
885     if (!pDoc) return NULL;
886     CPDF_ViewerPreferences viewRef(pDoc);
887     return viewRef.PrintPageRange();
888 }
889
890 DLLEXPORT FPDF_DUPLEXTYPE STDCALL FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document)
891 {
892     CPDF_Document* pDoc = (CPDF_Document*)document;
893     if (!pDoc) return DuplexUndefined;
894     CPDF_ViewerPreferences viewRef(pDoc);
895     CFX_ByteString duplex = viewRef.Duplex();
896     if (FX_BSTRC("Simplex") == duplex)
897         return Simplex;
898     if (FX_BSTRC("DuplexFlipShortEdge") == duplex)
899         return DuplexFlipShortEdge;
900     if (FX_BSTRC("DuplexFlipLongEdge") == duplex)
901         return DuplexFlipLongEdge;
902     return DuplexUndefined;
903 }
904
905 DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document,FPDF_BYTESTRING name)
906 {
907         if (document == NULL)
908                 return NULL;
909         if (name == NULL || name[0] == 0) 
910                 return NULL;
911
912         CPDF_Document* pDoc = (CPDF_Document*)document;
913         CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests"));
914         return name_tree.LookupNamedDest(pDoc, name);
915 }