Remove try/catch block
[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
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         return pParser->GetDocument();
283 }
284
285 extern void CheckUnSupportError(CPDF_Document * pDoc, FX_DWORD err_code);
286
287 class CMemFile FX_FINAL: public IFX_FileRead, public CFX_Object
288 {
289 public:
290         CMemFile(FX_BYTE* pBuf, FX_FILESIZE size):m_pBuf(pBuf),m_size(size) {}
291
292         virtual void                    Release() {delete this;}
293         virtual FX_FILESIZE             GetSize() {return m_size;}
294         virtual FX_BOOL                 ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) 
295         {
296             if (offset < 0) {
297                 return FALSE;
298             }
299             FX_SAFE_FILESIZE newPos = base::checked_cast<FX_FILESIZE, size_t>(size);
300             newPos += offset;
301             if (!newPos.IsValid() || newPos.ValueOrDie() > (FX_DWORD)m_size) {
302                 return FALSE;
303             }
304             FXSYS_memcpy(buffer, m_pBuf+offset, size);
305             return TRUE;
306         }
307 private:
308         FX_BYTE* m_pBuf;
309         FX_FILESIZE m_size;
310 };
311 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadMemDocument(const void* data_buf, int size, FPDF_BYTESTRING password)
312 {
313         CPDF_Parser* pParser = FX_NEW CPDF_Parser;
314         pParser->SetPassword(password);
315         CMemFile* pMemFile = FX_NEW CMemFile((FX_BYTE*)data_buf, size);
316         FX_DWORD err_code = pParser->StartParse(pMemFile);
317         if (err_code) {
318                 delete pParser;
319                 ProcessParseError(err_code);
320                 return NULL;
321         }
322         CPDF_Document * pDoc = NULL;
323         pDoc = pParser?pParser->GetDocument():NULL;
324         CheckUnSupportError(pDoc, err_code);
325         return pParser->GetDocument();
326 }
327
328 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess, FPDF_BYTESTRING password)
329 {
330         CPDF_Parser* pParser = FX_NEW CPDF_Parser;
331         pParser->SetPassword(password);
332         CPDF_CustomAccess* pFile = FX_NEW CPDF_CustomAccess(pFileAccess);
333         FX_DWORD err_code = pParser->StartParse(pFile);
334         if (err_code) {
335                 delete pParser;
336                 ProcessParseError(err_code);
337                 return NULL;
338         }
339         CPDF_Document * pDoc = NULL;
340         pDoc = pParser?pParser->GetDocument():NULL;
341         CheckUnSupportError(pDoc, err_code);
342         return pParser->GetDocument();
343 }
344
345 DLLEXPORT FPDF_BOOL STDCALL FPDF_GetFileVersion(FPDF_DOCUMENT doc, int* fileVersion)
346 {
347         if(!doc||!fileVersion) return FALSE;
348         *fileVersion = 0;
349         CPDF_Document* pDoc = (CPDF_Document*)doc;
350         CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser();
351         if(!pParser)
352                 return FALSE;
353         *fileVersion = pParser->GetFileVersion();
354         return TRUE;
355 }
356
357 // jabdelmalek: changed return type from FX_DWORD to build on Linux (and match header).
358 DLLEXPORT unsigned long STDCALL FPDF_GetDocPermissions(FPDF_DOCUMENT document)
359 {
360         if (document == NULL) return 0;
361         CPDF_Document*pDoc = (CPDF_Document*)document;
362         CPDF_Parser* pParser =  (CPDF_Parser*)pDoc->GetParser();
363         CPDF_Dictionary* pDict = pParser->GetEncryptDict();
364         if (pDict == NULL) return (FX_DWORD)-1;
365
366         return pDict->GetInteger("P");
367 }
368
369 DLLEXPORT int STDCALL FPDF_GetPageCount(FPDF_DOCUMENT document)
370 {
371         if (document == NULL) return 0;
372         return ((CPDF_Document*)document)->GetPageCount();
373 }
374
375 DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, int page_index)
376 {
377         if (document == NULL) return NULL;
378         if (page_index < 0 || page_index >= FPDF_GetPageCount(document)) return NULL;
379 //      CPDF_Parser* pParser = (CPDF_Parser*)document;
380         CPDF_Document* pDoc = (CPDF_Document*)document;
381         if (pDoc == NULL) return NULL;
382         CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
383         if (pDict == NULL) return NULL;
384         CPDF_Page* pPage = FX_NEW CPDF_Page;
385         pPage->Load(pDoc, pDict);
386         pPage->ParseContent();
387         
388 //      CheckUnSupportError(pDoc, 0);
389
390         return pPage;
391 }
392
393 DLLEXPORT double STDCALL FPDF_GetPageWidth(FPDF_PAGE page)
394 {
395         if (!page)
396                 return 0.0;
397         return ((CPDF_Page*)page)->GetPageWidth();
398 }
399
400 DLLEXPORT double STDCALL FPDF_GetPageHeight(FPDF_PAGE page)
401 {
402         if (!page) return 0.0;
403         return ((CPDF_Page*)page)->GetPageHeight();
404 }
405
406 void DropContext(void* data)
407 {
408         delete (CRenderContext*)data;
409 }
410
411 void FPDF_RenderPage_Retail(CRenderContext* pContext, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
412                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause  );
413 void (*Func_RenderPage)(CRenderContext*, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
414                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause  ) = FPDF_RenderPage_Retail;
415
416 #if defined(_DEBUG) || defined(DEBUG)
417 #define DEBUG_TRACE
418 #endif
419
420 #if defined(_WIN32)
421 DLLEXPORT void STDCALL FPDF_RenderPage(HDC dc, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
422                                                 int rotate, int flags)
423 {
424         if (page==NULL) return;
425         CPDF_Page* pPage = (CPDF_Page*)page;
426
427         CRenderContext* pContext = FX_NEW CRenderContext;
428         pPage->SetPrivateData((void*)1, pContext, DropContext);
429
430 #ifndef _WIN32_WCE
431         CFX_DIBitmap* pBitmap = NULL;
432         FX_BOOL bBackgroundAlphaNeeded=FALSE;
433         bBackgroundAlphaNeeded = pPage->BackgroundAlphaNeeded();
434         if (bBackgroundAlphaNeeded)
435         {
436                 
437                 pBitmap = FX_NEW CFX_DIBitmap;
438                 pBitmap->Create(size_x, size_y, FXDIB_Argb);
439                 pBitmap->Clear(0x00ffffff);
440 #ifdef _SKIA_SUPPORT_
441                 pContext->m_pDevice = FX_NEW CFX_SkiaDevice;
442                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap);
443 #else
444                 pContext->m_pDevice = FX_NEW CFX_FxgeDevice;
445                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap);
446 #endif
447         }
448         else
449             pContext->m_pDevice = FX_NEW CFX_WindowsDevice(dc);
450
451         Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
452
453         if (bBackgroundAlphaNeeded) 
454         {
455                 if (pBitmap)
456                 {
457                         CFX_WindowsDevice WinDC(dc);
458                         
459                         if (WinDC.GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER)
460                         {
461                                 CFX_DIBitmap* pDst = FX_NEW CFX_DIBitmap;
462                                 pDst->Create(pBitmap->GetWidth(), pBitmap->GetHeight(),FXDIB_Rgb32);
463                                 FXSYS_memcpy(pDst->GetBuffer(), pBitmap->GetBuffer(), pBitmap->GetPitch()*pBitmap->GetHeight());
464 //                              WinDC.SetDIBits(pDst,0,0);
465                                 WinDC.StretchDIBits(pDst,0,0,size_x,size_y);
466                                 delete pDst;
467                         }
468                         else
469                                 WinDC.SetDIBits(pBitmap,0,0);
470
471                 }
472         }
473 #else
474         // get clip region
475         RECT rect, cliprect;
476         rect.left = start_x;
477         rect.top = start_y;
478         rect.right = start_x + size_x;
479         rect.bottom = start_y + size_y;
480         GetClipBox(dc, &cliprect);
481         IntersectRect(&rect, &rect, &cliprect);
482         int width = rect.right - rect.left;
483         int height = rect.bottom - rect.top;
484
485 #ifdef DEBUG_TRACE
486         {
487                 char str[128];
488                 sprintf(str, "Rendering DIB %d x %d", width, height);
489                 CPDF_ModuleMgr::Get()->ReportError(999, str);
490         }
491 #endif
492
493         // Create a DIB section
494         LPVOID pBuffer;
495         BITMAPINFOHEADER bmih;
496         FXSYS_memset(&bmih, 0, sizeof bmih);
497         bmih.biSize = sizeof bmih;
498         bmih.biBitCount = 24;
499         bmih.biHeight = -height;
500         bmih.biPlanes = 1;
501         bmih.biWidth = width;
502         pContext->m_hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, &pBuffer, NULL, 0);
503         if (pContext->m_hBitmap == NULL) {
504 #if defined(DEBUG) || defined(_DEBUG)
505                 char str[128];
506                 sprintf(str, "Error CreateDIBSection: %d x %d, error code = %d", width, height, GetLastError());
507                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, str);
508 #else
509                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, NULL);
510 #endif
511         }
512         FXSYS_memset(pBuffer, 0xff, height*((width*3+3)/4*4));
513
514 #ifdef DEBUG_TRACE
515         {
516                 CPDF_ModuleMgr::Get()->ReportError(999, "DIBSection created");
517         }
518 #endif
519
520         // Create a device with this external buffer
521         pContext->m_pBitmap = FX_NEW CFX_DIBitmap;
522         pContext->m_pBitmap->Create(width, height, FXDIB_Rgb, (FX_LPBYTE)pBuffer);
523         pContext->m_pDevice = FX_NEW CPDF_FxgeDevice;
524         ((CPDF_FxgeDevice*)pContext->m_pDevice)->Attach(pContext->m_pBitmap);
525         
526 #ifdef DEBUG_TRACE
527         CPDF_ModuleMgr::Get()->ReportError(999, "Ready for PDF rendering");
528 #endif
529
530         // output to bitmap device
531         Func_RenderPage(pContext, page, start_x - rect.left, start_y - rect.top, size_x, size_y, rotate, flags);
532
533 #ifdef DEBUG_TRACE
534         CPDF_ModuleMgr::Get()->ReportError(999, "Finished PDF rendering");
535 #endif
536
537         // Now output to real device
538         HDC hMemDC = CreateCompatibleDC(dc);
539         if (hMemDC == NULL) {
540 #if defined(DEBUG) || defined(_DEBUG)
541                 char str[128];
542                 sprintf(str, "Error CreateCompatibleDC. Error code = %d", GetLastError());
543                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, str);
544 #else
545                 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, NULL);
546 #endif
547         }
548
549         HGDIOBJ hOldBitmap = SelectObject(hMemDC, pContext->m_hBitmap);
550
551 #ifdef DEBUG_TRACE
552         CPDF_ModuleMgr::Get()->ReportError(999, "Ready for screen rendering");
553 #endif
554
555         BitBlt(dc, rect.left, rect.top, width, height, hMemDC, 0, 0, SRCCOPY);
556         SelectObject(hMemDC, hOldBitmap);
557         DeleteDC(hMemDC);
558
559 #ifdef DEBUG_TRACE
560         CPDF_ModuleMgr::Get()->ReportError(999, "Finished screen rendering");
561 #endif
562
563 #endif
564         if (bBackgroundAlphaNeeded)
565         {
566                 if (pBitmap)
567                         delete pBitmap;
568                 pBitmap = NULL;
569         }
570         delete pContext;
571         pPage->RemovePrivateData((void*)1);
572 }
573 #endif
574
575 DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap, FPDF_PAGE page, int start_x, int start_y, 
576                                                 int size_x, int size_y, int rotate, int flags)
577 {
578         if (bitmap == NULL || page == NULL) return;
579         CPDF_Page* pPage = (CPDF_Page*)page;
580
581
582         CRenderContext* pContext = FX_NEW CRenderContext;
583         pPage->SetPrivateData((void*)1, pContext, DropContext);
584 #ifdef _SKIA_SUPPORT_
585         pContext->m_pDevice = FX_NEW CFX_SkiaDevice;
586
587         if (flags & FPDF_REVERSE_BYTE_ORDER)
588                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap,0,TRUE);
589         else
590                 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
591 #else
592         pContext->m_pDevice = FX_NEW CFX_FxgeDevice;
593
594         if (flags & FPDF_REVERSE_BYTE_ORDER)
595                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap,0,TRUE);
596         else
597                 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap);
598 #endif
599
600         Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL);
601
602         delete pContext;
603         pPage->RemovePrivateData((void*)1);
604 }
605
606 DLLEXPORT void STDCALL FPDF_ClosePage(FPDF_PAGE page)
607 {
608         if (!page) return;
609         delete (CPDF_Page*)page;
610
611 }
612
613 DLLEXPORT void STDCALL FPDF_CloseDocument(FPDF_DOCUMENT document)
614 {
615         if (!document)
616                 return;
617         CPDF_Document* pDoc = (CPDF_Document*)document; 
618         CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser();
619         if (pParser == NULL) 
620         {
621                 delete pDoc;
622                 return;
623         }
624         delete pParser;
625 //      delete pDoc;
626 }
627
628 DLLEXPORT unsigned long STDCALL FPDF_GetLastError()
629 {
630         return GetLastError();
631 }
632
633 DLLEXPORT void STDCALL FPDF_DeviceToPage(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
634                                                 int rotate, int device_x, int device_y, double* page_x, double* page_y)
635 {
636         if (page == NULL || page_x == NULL || page_y == NULL) return;
637         CPDF_Page* pPage = (CPDF_Page*)page;
638
639         CPDF_Matrix page2device;
640         pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate);
641         CPDF_Matrix device2page;
642         device2page.SetReverse(page2device);
643
644         FX_FLOAT page_x_f, page_y_f;
645         device2page.Transform((FX_FLOAT)(device_x), (FX_FLOAT)(device_y), page_x_f, page_y_f);
646
647         *page_x = (page_x_f);
648         *page_y = (page_y_f);
649 }
650
651 DLLEXPORT void STDCALL FPDF_PageToDevice(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
652                                                 int rotate, double page_x, double page_y, int* device_x, int* device_y)
653 {
654         if (page == NULL || device_x == NULL || device_y == NULL) return;
655         CPDF_Page* pPage = (CPDF_Page*)page;
656
657         CPDF_Matrix page2device;
658         pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate);
659
660         FX_FLOAT device_x_f, device_y_f;
661         page2device.Transform(((FX_FLOAT)page_x), ((FX_FLOAT)page_y), device_x_f, device_y_f);
662
663         *device_x = FXSYS_round(device_x_f);
664         *device_y = FXSYS_round(device_y_f);
665 }
666
667 DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_Create(int width, int height, int alpha)
668 {
669         CFX_DIBitmap* pBitmap = FX_NEW CFX_DIBitmap;
670         pBitmap->Create(width, height, alpha ? FXDIB_Argb : FXDIB_Rgb32);
671         return pBitmap;
672 }
673
674 DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_CreateEx(int width, int height, int format, void* first_scan, int stride)
675 {
676         FXDIB_Format fx_format;
677         switch (format) {
678                 case FPDFBitmap_Gray:
679                         fx_format = FXDIB_8bppRgb;
680                         break;
681                 case FPDFBitmap_BGR:
682                         fx_format = FXDIB_Rgb;
683                         break;
684                 case FPDFBitmap_BGRx:
685                         fx_format = FXDIB_Rgb32;
686                         break;
687                 case FPDFBitmap_BGRA:
688                         fx_format = FXDIB_Argb;
689                         break;
690                 default:
691                         return NULL;
692         }
693         CFX_DIBitmap* pBitmap = FX_NEW CFX_DIBitmap;
694         pBitmap->Create(width, height, fx_format, (FX_LPBYTE)first_scan, stride);
695         return pBitmap;
696 }
697
698 DLLEXPORT void STDCALL FPDFBitmap_FillRect(FPDF_BITMAP bitmap, int left, int top, int width, int height, FPDF_DWORD color)
699 {
700         if (bitmap == NULL) return;
701 #ifdef _SKIA_SUPPORT_
702         CFX_SkiaDevice device;
703 #else
704         CFX_FxgeDevice device;
705 #endif
706         device.Attach((CFX_DIBitmap*)bitmap);
707         if (!((CFX_DIBitmap*)bitmap)->HasAlpha()) color |= 0xFF000000;
708         FX_RECT rect(left, top, left+width, top+height);
709         device.FillRect(&rect, color);
710 }
711
712 DLLEXPORT void* STDCALL FPDFBitmap_GetBuffer(FPDF_BITMAP bitmap)
713 {
714         if (bitmap == NULL) return NULL;
715         return ((CFX_DIBitmap*)bitmap)->GetBuffer();
716 }
717
718 DLLEXPORT int STDCALL FPDFBitmap_GetWidth(FPDF_BITMAP bitmap)
719 {
720         if (bitmap == NULL) return 0;
721         return ((CFX_DIBitmap*)bitmap)->GetWidth();
722 }
723
724 DLLEXPORT int STDCALL FPDFBitmap_GetHeight(FPDF_BITMAP bitmap)
725 {
726         if (bitmap == NULL) return 0;
727         return ((CFX_DIBitmap*)bitmap)->GetHeight();
728 }
729
730 DLLEXPORT int STDCALL FPDFBitmap_GetStride(FPDF_BITMAP bitmap)
731 {
732         if (bitmap == NULL) return 0;
733         return ((CFX_DIBitmap*)bitmap)->GetPitch();
734 }
735
736 DLLEXPORT void STDCALL FPDFBitmap_Destroy(FPDF_BITMAP bitmap)
737 {
738         if (bitmap == NULL) return;
739         delete (CFX_DIBitmap*)bitmap;
740 }
741
742 void FPDF_RenderPage_Retail(CRenderContext* pContext, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y,
743                                                 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause )
744 {
745 //#ifdef _LICENSED_BUILD_
746         CPDF_Page* pPage = (CPDF_Page*)page;
747         if (pPage == NULL) return;
748
749         if (!pContext->m_pOptions)
750                 pContext->m_pOptions = new CPDF_RenderOptions;
751 //      CPDF_RenderOptions options;
752         if (flags & FPDF_LCD_TEXT)
753                 pContext->m_pOptions->m_Flags |= RENDER_CLEARTYPE;
754         else
755                 pContext->m_pOptions->m_Flags &= ~RENDER_CLEARTYPE;
756         if (flags & FPDF_NO_NATIVETEXT)
757                 pContext->m_pOptions->m_Flags |= RENDER_NO_NATIVETEXT;
758         if (flags & FPDF_RENDER_LIMITEDIMAGECACHE)
759                 pContext->m_pOptions->m_Flags |= RENDER_LIMITEDIMAGECACHE;
760         if (flags & FPDF_RENDER_FORCEHALFTONE)
761                 pContext->m_pOptions->m_Flags |= RENDER_FORCE_HALFTONE;
762         //Grayscale output
763         if (flags & FPDF_GRAYSCALE)
764         {
765                 pContext->m_pOptions->m_ColorMode = RENDER_COLOR_GRAY;
766                 pContext->m_pOptions->m_ForeColor = 0;
767                 pContext->m_pOptions->m_BackColor = 0xffffff;
768         }
769         const CPDF_OCContext::UsageType usage = (flags & FPDF_PRINTING) ? CPDF_OCContext::Print : CPDF_OCContext::View;
770
771         pContext->m_pOptions->m_AddFlags = flags >> 8;
772
773         pContext->m_pOptions->m_pOCContext = new CPDF_OCContext(pPage->m_pDocument, usage);
774
775
776         CFX_AffineMatrix matrix;
777         pPage->GetDisplayMatrix(matrix, start_x, start_y, size_x, size_y, rotate); 
778
779         FX_RECT clip;
780         clip.left = start_x;
781         clip.right = start_x + size_x;
782         clip.top = start_y;
783         clip.bottom = start_y + size_y;
784         pContext->m_pDevice->SaveState();
785         pContext->m_pDevice->SetClip_Rect(&clip);
786
787         pContext->m_pContext = FX_NEW CPDF_RenderContext;
788         pContext->m_pContext->Create(pPage);
789         pContext->m_pContext->AppendObjectList(pPage, &matrix);
790
791         if (flags & FPDF_ANNOT) {
792                 pContext->m_pAnnots = FX_NEW CPDF_AnnotList(pPage);
793                 FX_BOOL bPrinting = pContext->m_pDevice->GetDeviceClass() != FXDC_DISPLAY;
794                 pContext->m_pAnnots->DisplayAnnots(pPage, pContext->m_pContext, bPrinting, &matrix, TRUE, NULL);
795         }
796
797         pContext->m_pRenderer = FX_NEW CPDF_ProgressiveRenderer;
798         pContext->m_pRenderer->Start(pContext->m_pContext, pContext->m_pDevice, pContext->m_pOptions, pause);
799         if (bNeedToRestore)
800         {
801           pContext->m_pDevice->RestoreState();
802         }
803         
804 //#endif
805 }
806
807 DLLEXPORT int STDCALL FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document, int page_index, double* width, double* height)
808 {
809         CPDF_Document* pDoc = (CPDF_Document*)document;
810         if(pDoc == NULL)
811                 return FALSE;
812
813         CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
814         if (pDict == NULL) return FALSE;
815
816         CPDF_Page page;
817         page.Load(pDoc, pDict);
818         *width = page.GetPageWidth();
819         *height = page.GetPageHeight();
820
821         return TRUE;
822 }
823
824 DLLEXPORT FPDF_BOOL STDCALL FPDF_VIEWERREF_GetPrintScaling(FPDF_DOCUMENT document)
825 {
826         CPDF_Document* pDoc = (CPDF_Document*)document;
827         if (!pDoc) return TRUE;
828         CPDF_ViewerPreferences viewRef(pDoc);
829         return viewRef.PrintScaling();
830 }
831
832 DLLEXPORT int STDCALL FPDF_VIEWERREF_GetNumCopies(FPDF_DOCUMENT document)
833 {
834     CPDF_Document* pDoc = (CPDF_Document*)document;
835     if (!pDoc) return 1;
836     CPDF_ViewerPreferences viewRef(pDoc);
837     return viewRef.NumCopies();
838 }
839
840 DLLEXPORT FPDF_PAGERANGE STDCALL FPDF_VIEWERREF_GetPrintPageRange(FPDF_DOCUMENT document)
841 {
842     CPDF_Document* pDoc = (CPDF_Document*)document;
843     if (!pDoc) return NULL;
844     CPDF_ViewerPreferences viewRef(pDoc);
845     return viewRef.PrintPageRange();
846 }
847
848 DLLEXPORT FPDF_DUPLEXTYPE STDCALL FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document)
849 {
850     CPDF_Document* pDoc = (CPDF_Document*)document;
851     if (!pDoc) return DuplexUndefined;
852     CPDF_ViewerPreferences viewRef(pDoc);
853     CFX_ByteString duplex = viewRef.Duplex();
854     if (FX_BSTRC("Simplex") == duplex)
855         return Simplex;
856     if (FX_BSTRC("DuplexFlipShortEdge") == duplex)
857         return DuplexFlipShortEdge;
858     if (FX_BSTRC("DuplexFlipLongEdge") == duplex)
859         return DuplexFlipLongEdge;
860     return DuplexUndefined;
861 }
862
863 DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document,FPDF_BYTESTRING name)
864 {
865         if (document == NULL)
866                 return NULL;
867         if (name == NULL || name[0] == 0) 
868                 return NULL;
869
870         CPDF_Document* pDoc = (CPDF_Document*)document;
871         CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests"));
872         return name_tree.LookupNamedDest(pDoc, name);
873 }