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/fsdk_mgr.h" 9 #include "../include/fsdk_rendercontext.h" 10 #include "../../public/fpdfview.h" 11 #include "../../public/fpdf_progressive.h" 12 #include "../../public/fpdf_ext.h" 13 #include "../../core/src/fxcrt/fx_safe_types.h" 14 #include "../../third_party/base/nonstd_unique_ptr.h" 15 #include "../../third_party/base/numerics/safe_conversions_impl.h" 16 17 CPDF_CustomAccess::CPDF_CustomAccess(FPDF_FILEACCESS* pFileAccess) 18 { 19 if (pFileAccess) 20 m_FileAccess = *pFileAccess; 21 } 22 23 FX_BOOL CPDF_CustomAccess::ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) 24 { 25 if (offset < 0) { 26 return FALSE; 27 } 28 FX_SAFE_FILESIZE newPos = pdfium::base::checked_cast<FX_FILESIZE, size_t>(size); 29 newPos += offset; 30 if (!newPos.IsValid() || newPos.ValueOrDie() > m_FileAccess.m_FileLen) { 31 return FALSE; 32 } 33 return m_FileAccess.m_GetBlock(m_FileAccess.m_Param, offset,(FX_LPBYTE) buffer, size); 34 } 35 36 //0 bit: FPDF_POLICY_MACHINETIME_ACCESS 37 static FX_DWORD foxit_sandbox_policy = 0xFFFFFFFF; 38 39 void FSDK_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable) 40 { 41 switch(policy) 42 { 43 case FPDF_POLICY_MACHINETIME_ACCESS: 44 { 45 if(enable) 46 foxit_sandbox_policy |= 0x01; 47 else 48 foxit_sandbox_policy &= 0xFFFFFFFE; 49 } 50 break; 51 default: 52 break; 53 } 54 } 55 56 FPDF_BOOL FSDK_IsSandBoxPolicyEnabled(FPDF_DWORD policy) 57 { 58 switch(policy) 59 { 60 case FPDF_POLICY_MACHINETIME_ACCESS: 61 { 62 if(foxit_sandbox_policy&0x01) 63 return TRUE; 64 else 65 return FALSE; 66 } 67 break; 68 default: 69 break; 70 } 71 return FALSE; 72 } 73 74 75 #ifndef _T 76 #define _T(x) x 77 #endif 78 79 #ifdef API5 80 CPDF_ModuleMgr* g_pModuleMgr = NULL; 81 #else 82 CCodec_ModuleMgr* g_pCodecModule = NULL; 83 #endif 84 85 //extern CPDFSDK_FormFillApp* g_pFormFillApp; 86 87 #if _FX_OS_ == _FX_LINUX_EMBEDDED_ 88 class CFontMapper : public IPDF_FontMapper 89 { 90 public: 91 CFontMapper(); 92 virtual ~CFontMapper(); 93 94 virtual FT_Face FindSubstFont( 95 CPDF_Document* pDoc, // [IN] The PDF document 96 const CFX_ByteString& face_name, // [IN] Original name 97 FX_BOOL bTrueType, // [IN] TrueType or Type1 98 FX_DWORD flags, // [IN] PDF font flags (see PDF Reference section 5.7.1) 99 int font_weight, // [IN] original font weight. 0 for not specified 100 int CharsetCP, // [IN] code page for charset (see Win32 GetACP()) 101 FX_BOOL bVertical, 102 CPDF_SubstFont* pSubstFont // [OUT] Subst font data 103 ); 104 105 FT_Face m_SysFace; 106 }; 107 108 CFontMapper* g_pFontMapper = NULL; 109 #endif // #if _FX_OS_ == _FX_LINUX_EMBEDDED_ 110 111 DLLEXPORT void STDCALL FPDF_InitLibrary() 112 { 113 g_pCodecModule = CCodec_ModuleMgr::Create(); 114 115 CFX_GEModule::Create(); 116 CFX_GEModule::Get()->SetCodecModule(g_pCodecModule); 117 118 CPDF_ModuleMgr::Create(); 119 CPDF_ModuleMgr::Get()->SetCodecModule(g_pCodecModule); 120 CPDF_ModuleMgr::Get()->InitPageModule(); 121 CPDF_ModuleMgr::Get()->InitRenderModule(); 122 CPDF_ModuleMgr * pModuleMgr = CPDF_ModuleMgr::Get(); 123 if ( pModuleMgr ) 124 { 125 pModuleMgr->LoadEmbeddedGB1CMaps(); 126 pModuleMgr->LoadEmbeddedJapan1CMaps(); 127 pModuleMgr->LoadEmbeddedCNS1CMaps(); 128 pModuleMgr->LoadEmbeddedKorea1CMaps(); 129 } 130 } 131 132 133 DLLEXPORT void STDCALL FPDF_DestroyLibrary() 134 { 135 136 #if _FX_OS_ == _FX_LINUX_EMBEDDED_ 137 if (g_pFontMapper) delete g_pFontMapper; 138 #endif 139 #ifdef API5 140 g_pModuleMgr->Destroy(); 141 #else 142 CPDF_ModuleMgr::Destroy(); 143 CFX_GEModule::Destroy(); 144 g_pCodecModule->Destroy(); 145 #endif 146 } 147 148 #ifndef _WIN32 149 int g_LastError; 150 void SetLastError(int err) 151 { 152 g_LastError = err; 153 } 154 155 int GetLastError() 156 { 157 return g_LastError; 158 } 159 #endif 160 161 void ProcessParseError(FX_DWORD err_code) 162 { 163 // Translate FPDFAPI error code to FPDFVIEW error code 164 switch (err_code) { 165 case PDFPARSE_ERROR_FILE: 166 err_code = FPDF_ERR_FILE; 167 break; 168 case PDFPARSE_ERROR_FORMAT: 169 err_code = FPDF_ERR_FORMAT; 170 break; 171 case PDFPARSE_ERROR_PASSWORD: 172 err_code = FPDF_ERR_PASSWORD; 173 break; 174 case PDFPARSE_ERROR_HANDLER: 175 err_code = FPDF_ERR_SECURITY; 176 break; 177 } 178 SetLastError(err_code); 179 } 180 181 DLLEXPORT void STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable) 182 { 183 return FSDK_SetSandBoxPolicy(policy, enable); 184 } 185 186 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path, FPDF_BYTESTRING password) 187 { 188 CPDF_Parser* pParser = new CPDF_Parser; 189 pParser->SetPassword(password); 190 191 FX_DWORD err_code = pParser->StartParse((FX_LPCSTR)file_path); 192 if (err_code) { 193 delete pParser; 194 ProcessParseError(err_code); 195 return NULL; 196 } 197 return pParser->GetDocument(); 198 } 199 200 extern void CheckUnSupportError(CPDF_Document * pDoc, FX_DWORD err_code); 201 202 class CMemFile FX_FINAL: public IFX_FileRead 203 { 204 public: 205 CMemFile(FX_BYTE* pBuf, FX_FILESIZE size):m_pBuf(pBuf),m_size(size) {} 206 207 virtual void Release() {delete this;} 208 virtual FX_FILESIZE GetSize() {return m_size;} 209 virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) 210 { 211 if (offset < 0) { 212 return FALSE; 213 } 214 FX_SAFE_FILESIZE newPos = pdfium::base::checked_cast<FX_FILESIZE, size_t>(size); 215 newPos += offset; 216 if (!newPos.IsValid() || newPos.ValueOrDie() > (FX_DWORD)m_size) { 217 return FALSE; 218 } 219 FXSYS_memcpy(buffer, m_pBuf+offset, size); 220 return TRUE; 221 } 222 private: 223 FX_BYTE* m_pBuf; 224 FX_FILESIZE m_size; 225 }; 226 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadMemDocument(const void* data_buf, int size, FPDF_BYTESTRING password) 227 { 228 CPDF_Parser* pParser = new CPDF_Parser; 229 pParser->SetPassword(password); 230 CMemFile* pMemFile = new CMemFile((FX_BYTE*)data_buf, size); 231 FX_DWORD err_code = pParser->StartParse(pMemFile); 232 if (err_code) { 233 delete pParser; 234 ProcessParseError(err_code); 235 return NULL; 236 } 237 CPDF_Document * pDoc = NULL; 238 pDoc = pParser?pParser->GetDocument():NULL; 239 CheckUnSupportError(pDoc, err_code); 240 return pParser->GetDocument(); 241 } 242 243 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess, FPDF_BYTESTRING password) 244 { 245 CPDF_Parser* pParser = new CPDF_Parser; 246 pParser->SetPassword(password); 247 CPDF_CustomAccess* pFile = new CPDF_CustomAccess(pFileAccess); 248 FX_DWORD err_code = pParser->StartParse(pFile); 249 if (err_code) { 250 delete pParser; 251 ProcessParseError(err_code); 252 return NULL; 253 } 254 CPDF_Document * pDoc = NULL; 255 pDoc = pParser?pParser->GetDocument():NULL; 256 CheckUnSupportError(pDoc, err_code); 257 return pParser->GetDocument(); 258 } 259 260 DLLEXPORT FPDF_BOOL STDCALL FPDF_GetFileVersion(FPDF_DOCUMENT doc, int* fileVersion) 261 { 262 if(!doc||!fileVersion) return FALSE; 263 *fileVersion = 0; 264 CPDF_Document* pDoc = (CPDF_Document*)doc; 265 CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser(); 266 if(!pParser) 267 return FALSE; 268 *fileVersion = pParser->GetFileVersion(); 269 return TRUE; 270 } 271 272 // jabdelmalek: changed return type from FX_DWORD to build on Linux (and match header). 273 DLLEXPORT unsigned long STDCALL FPDF_GetDocPermissions(FPDF_DOCUMENT document) 274 { 275 if (document == NULL) return 0; 276 CPDF_Document*pDoc = (CPDF_Document*)document; 277 CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser(); 278 CPDF_Dictionary* pDict = pParser->GetEncryptDict(); 279 if (pDict == NULL) return (FX_DWORD)-1; 280 281 return pDict->GetInteger("P"); 282 } 283 284 DLLEXPORT int STDCALL FPDF_GetSecurityHandlerRevision(FPDF_DOCUMENT document) 285 { 286 if (document == NULL) return -1; 287 CPDF_Document*pDoc = (CPDF_Document*)document; 288 CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser(); 289 CPDF_Dictionary* pDict = pParser->GetEncryptDict(); 290 if (pDict == NULL) return -1; 291 292 return pDict->GetInteger("R"); 293 } 294 295 DLLEXPORT int STDCALL FPDF_GetPageCount(FPDF_DOCUMENT document) 296 { 297 if (document == NULL) return 0; 298 return ((CPDF_Document*)document)->GetPageCount(); 299 } 300 301 DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, int page_index) 302 { 303 if (document == NULL) return NULL; 304 if (page_index < 0 || page_index >= FPDF_GetPageCount(document)) return NULL; 305 306 CPDF_Document* pDoc = (CPDF_Document*)document; 307 if (pDoc == NULL) return NULL; 308 CPDF_Dictionary* pDict = pDoc->GetPage(page_index); 309 if (pDict == NULL) return NULL; 310 CPDF_Page* pPage = new CPDF_Page; 311 pPage->Load(pDoc, pDict); 312 pPage->ParseContent(); 313 return pPage; 314 } 315 316 DLLEXPORT double STDCALL FPDF_GetPageWidth(FPDF_PAGE page) 317 { 318 if (!page) 319 return 0.0; 320 return ((CPDF_Page*)page)->GetPageWidth(); 321 } 322 323 DLLEXPORT double STDCALL FPDF_GetPageHeight(FPDF_PAGE page) 324 { 325 if (!page) return 0.0; 326 return ((CPDF_Page*)page)->GetPageHeight(); 327 } 328 329 void DropContext(void* data) 330 { 331 delete (CRenderContext*)data; 332 } 333 334 void FPDF_RenderPage_Retail(CRenderContext* pContext, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, 335 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause ); 336 void (*Func_RenderPage)(CRenderContext*, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, 337 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause ) = FPDF_RenderPage_Retail; 338 339 #if defined(_DEBUG) || defined(DEBUG) 340 #define DEBUG_TRACE 341 #endif 342 343 #if defined(_WIN32) 344 DLLEXPORT void STDCALL FPDF_RenderPage(HDC dc, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, 345 int rotate, int flags) 346 { 347 if (page==NULL) return; 348 CPDF_Page* pPage = (CPDF_Page*)page; 349 350 CRenderContext* pContext = new CRenderContext; 351 pPage->SetPrivateData((void*)1, pContext, DropContext); 352 353 #ifndef _WIN32_WCE 354 CFX_DIBitmap* pBitmap = NULL; 355 FX_BOOL bBackgroundAlphaNeeded=FALSE; 356 bBackgroundAlphaNeeded = pPage->BackgroundAlphaNeeded(); 357 if (bBackgroundAlphaNeeded) 358 { 359 360 pBitmap = new CFX_DIBitmap; 361 pBitmap->Create(size_x, size_y, FXDIB_Argb); 362 pBitmap->Clear(0x00ffffff); 363 #ifdef _SKIA_SUPPORT_ 364 pContext->m_pDevice = new CFX_SkiaDevice; 365 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap); 366 #else 367 pContext->m_pDevice = new CFX_FxgeDevice; 368 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)pBitmap); 369 #endif 370 } 371 else 372 pContext->m_pDevice = new CFX_WindowsDevice(dc); 373 374 Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL); 375 376 if (bBackgroundAlphaNeeded) 377 { 378 if (pBitmap) 379 { 380 CFX_WindowsDevice WinDC(dc); 381 382 if (WinDC.GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) 383 { 384 CFX_DIBitmap* pDst = new CFX_DIBitmap; 385 int pitch = pBitmap->GetPitch(); 386 pDst->Create(size_x, size_y, FXDIB_Rgb32); 387 FXSYS_memset(pDst->GetBuffer(), -1, pitch*size_y); 388 pDst->CompositeBitmap(0, 0, size_x, size_y, pBitmap, 0, 0, FXDIB_BLEND_NORMAL, NULL, FALSE, NULL); 389 WinDC.StretchDIBits(pDst,0,0,size_x,size_y); 390 delete pDst; 391 } 392 else 393 WinDC.SetDIBits(pBitmap,0,0); 394 395 } 396 } 397 #else 398 // get clip region 399 RECT rect, cliprect; 400 rect.left = start_x; 401 rect.top = start_y; 402 rect.right = start_x + size_x; 403 rect.bottom = start_y + size_y; 404 GetClipBox(dc, &cliprect); 405 IntersectRect(&rect, &rect, &cliprect); 406 int width = rect.right - rect.left; 407 int height = rect.bottom - rect.top; 408 409 #ifdef DEBUG_TRACE 410 { 411 char str[128]; 412 memset(str, 0, sizeof(str)); 413 FXSYS_snprintf(str, sizeof(str) - 1, "Rendering DIB %d x %d", width, height); 414 CPDF_ModuleMgr::Get()->ReportError(999, str); 415 } 416 #endif 417 418 // Create a DIB section 419 LPVOID pBuffer; 420 BITMAPINFOHEADER bmih; 421 FXSYS_memset(&bmih, 0, sizeof bmih); 422 bmih.biSize = sizeof bmih; 423 bmih.biBitCount = 24; 424 bmih.biHeight = -height; 425 bmih.biPlanes = 1; 426 bmih.biWidth = width; 427 pContext->m_hBitmap = CreateDIBSection(dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, &pBuffer, NULL, 0); 428 if (pContext->m_hBitmap == NULL) { 429 #if defined(DEBUG) || defined(_DEBUG) 430 char str[128]; 431 memset(str, 0, sizeof(str)); 432 FXSYS_snprintf(str, sizeof(str) - 1, "Error CreateDIBSection: %d x %d, error code = %d", width, height, GetLastError()); 433 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, str); 434 #else 435 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, NULL); 436 #endif 437 } 438 FXSYS_memset(pBuffer, 0xff, height*((width*3+3)/4*4)); 439 440 #ifdef DEBUG_TRACE 441 { 442 CPDF_ModuleMgr::Get()->ReportError(999, "DIBSection created"); 443 } 444 #endif 445 446 // Create a device with this external buffer 447 pContext->m_pBitmap = new CFX_DIBitmap; 448 pContext->m_pBitmap->Create(width, height, FXDIB_Rgb, (FX_LPBYTE)pBuffer); 449 pContext->m_pDevice = new CPDF_FxgeDevice; 450 ((CPDF_FxgeDevice*)pContext->m_pDevice)->Attach(pContext->m_pBitmap); 451 452 #ifdef DEBUG_TRACE 453 CPDF_ModuleMgr::Get()->ReportError(999, "Ready for PDF rendering"); 454 #endif 455 456 // output to bitmap device 457 Func_RenderPage(pContext, page, start_x - rect.left, start_y - rect.top, size_x, size_y, rotate, flags); 458 459 #ifdef DEBUG_TRACE 460 CPDF_ModuleMgr::Get()->ReportError(999, "Finished PDF rendering"); 461 #endif 462 463 // Now output to real device 464 HDC hMemDC = CreateCompatibleDC(dc); 465 if (hMemDC == NULL) { 466 #if defined(DEBUG) || defined(_DEBUG) 467 char str[128]; 468 memset(str, 0, sizeof(str)); 469 FXSYS_snprintf(str, sizeof(str) - 1, "Error CreateCompatibleDC. Error code = %d", GetLastError()); 470 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, str); 471 #else 472 CPDF_ModuleMgr::Get()->ReportError(FPDFERR_OUT_OF_MEMORY, NULL); 473 #endif 474 } 475 476 HGDIOBJ hOldBitmap = SelectObject(hMemDC, pContext->m_hBitmap); 477 478 #ifdef DEBUG_TRACE 479 CPDF_ModuleMgr::Get()->ReportError(999, "Ready for screen rendering"); 480 #endif 481 482 BitBlt(dc, rect.left, rect.top, width, height, hMemDC, 0, 0, SRCCOPY); 483 SelectObject(hMemDC, hOldBitmap); 484 DeleteDC(hMemDC); 485 486 #ifdef DEBUG_TRACE 487 CPDF_ModuleMgr::Get()->ReportError(999, "Finished screen rendering"); 488 #endif 489 490 #endif 491 if (bBackgroundAlphaNeeded) 492 { 493 if (pBitmap) 494 delete pBitmap; 495 pBitmap = NULL; 496 } 497 delete pContext; 498 pPage->RemovePrivateData((void*)1); 499 } 500 #endif 501 502 DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap, FPDF_PAGE page, int start_x, int start_y, 503 int size_x, int size_y, int rotate, int flags) 504 { 505 if (bitmap == NULL || page == NULL) return; 506 CPDF_Page* pPage = (CPDF_Page*)page; 507 508 509 CRenderContext* pContext = new CRenderContext; 510 pPage->SetPrivateData((void*)1, pContext, DropContext); 511 #ifdef _SKIA_SUPPORT_ 512 pContext->m_pDevice = new CFX_SkiaDevice; 513 514 if (flags & FPDF_REVERSE_BYTE_ORDER) 515 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap,0,TRUE); 516 else 517 ((CFX_SkiaDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap); 518 #else 519 pContext->m_pDevice = new CFX_FxgeDevice; 520 521 if (flags & FPDF_REVERSE_BYTE_ORDER) 522 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap,0,TRUE); 523 else 524 ((CFX_FxgeDevice*)pContext->m_pDevice)->Attach((CFX_DIBitmap*)bitmap); 525 #endif 526 527 Func_RenderPage(pContext, page, start_x, start_y, size_x, size_y, rotate, flags,TRUE,NULL); 528 529 delete pContext; 530 pPage->RemovePrivateData((void*)1); 531 } 532 533 DLLEXPORT void STDCALL FPDF_ClosePage(FPDF_PAGE page) 534 { 535 if (!page) return; 536 CPDFSDK_PageView* pPageView = (CPDFSDK_PageView*)(((CPDF_Page*)page))->GetPrivateData((FX_LPVOID)page); 537 if (pPageView && pPageView->IsLocked()) { 538 pPageView->TakeOverPage(); 539 return; 540 } 541 delete (CPDF_Page*)page; 542 543 } 544 545 DLLEXPORT void STDCALL FPDF_CloseDocument(FPDF_DOCUMENT document) 546 { 547 if (!document) 548 return; 549 CPDF_Document* pDoc = (CPDF_Document*)document; 550 CPDF_Parser* pParser = (CPDF_Parser*)pDoc->GetParser(); 551 if (pParser == NULL) 552 { 553 delete pDoc; 554 return; 555 } 556 delete pParser; 557 // delete pDoc; 558 } 559 560 DLLEXPORT unsigned long STDCALL FPDF_GetLastError() 561 { 562 return GetLastError(); 563 } 564 565 DLLEXPORT void STDCALL FPDF_DeviceToPage(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, 566 int rotate, int device_x, int device_y, double* page_x, double* page_y) 567 { 568 if (page == NULL || page_x == NULL || page_y == NULL) return; 569 CPDF_Page* pPage = (CPDF_Page*)page; 570 571 CPDF_Matrix page2device; 572 pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate); 573 CPDF_Matrix device2page; 574 device2page.SetReverse(page2device); 575 576 FX_FLOAT page_x_f, page_y_f; 577 device2page.Transform((FX_FLOAT)(device_x), (FX_FLOAT)(device_y), page_x_f, page_y_f); 578 579 *page_x = (page_x_f); 580 *page_y = (page_y_f); 581 } 582 583 DLLEXPORT void STDCALL FPDF_PageToDevice(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, 584 int rotate, double page_x, double page_y, int* device_x, int* device_y) 585 { 586 if (page == NULL || device_x == NULL || device_y == NULL) return; 587 CPDF_Page* pPage = (CPDF_Page*)page; 588 589 CPDF_Matrix page2device; 590 pPage->GetDisplayMatrix(page2device, start_x, start_y, size_x, size_y, rotate); 591 592 FX_FLOAT device_x_f, device_y_f; 593 page2device.Transform(((FX_FLOAT)page_x), ((FX_FLOAT)page_y), device_x_f, device_y_f); 594 595 *device_x = FXSYS_round(device_x_f); 596 *device_y = FXSYS_round(device_y_f); 597 } 598 599 DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_Create(int width, int height, int alpha) 600 { 601 nonstd::unique_ptr<CFX_DIBitmap> pBitmap(new CFX_DIBitmap); 602 if (!pBitmap->Create(width, height, alpha ? FXDIB_Argb : FXDIB_Rgb32)) { 603 return NULL; 604 } 605 return pBitmap.release(); 606 } 607 608 DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_CreateEx(int width, int height, int format, void* first_scan, int stride) 609 { 610 FXDIB_Format fx_format; 611 switch (format) { 612 case FPDFBitmap_Gray: 613 fx_format = FXDIB_8bppRgb; 614 break; 615 case FPDFBitmap_BGR: 616 fx_format = FXDIB_Rgb; 617 break; 618 case FPDFBitmap_BGRx: 619 fx_format = FXDIB_Rgb32; 620 break; 621 case FPDFBitmap_BGRA: 622 fx_format = FXDIB_Argb; 623 break; 624 default: 625 return NULL; 626 } 627 CFX_DIBitmap* pBitmap = new CFX_DIBitmap; 628 pBitmap->Create(width, height, fx_format, (FX_LPBYTE)first_scan, stride); 629 return pBitmap; 630 } 631 632 DLLEXPORT void STDCALL FPDFBitmap_FillRect(FPDF_BITMAP bitmap, int left, int top, int width, int height, FPDF_DWORD color) 633 { 634 if (bitmap == NULL) return; 635 #ifdef _SKIA_SUPPORT_ 636 CFX_SkiaDevice device; 637 #else 638 CFX_FxgeDevice device; 639 #endif 640 device.Attach((CFX_DIBitmap*)bitmap); 641 if (!((CFX_DIBitmap*)bitmap)->HasAlpha()) color |= 0xFF000000; 642 FX_RECT rect(left, top, left+width, top+height); 643 device.FillRect(&rect, color); 644 } 645 646 DLLEXPORT void* STDCALL FPDFBitmap_GetBuffer(FPDF_BITMAP bitmap) 647 { 648 if (bitmap == NULL) return NULL; 649 return ((CFX_DIBitmap*)bitmap)->GetBuffer(); 650 } 651 652 DLLEXPORT int STDCALL FPDFBitmap_GetWidth(FPDF_BITMAP bitmap) 653 { 654 if (bitmap == NULL) return 0; 655 return ((CFX_DIBitmap*)bitmap)->GetWidth(); 656 } 657 658 DLLEXPORT int STDCALL FPDFBitmap_GetHeight(FPDF_BITMAP bitmap) 659 { 660 if (bitmap == NULL) return 0; 661 return ((CFX_DIBitmap*)bitmap)->GetHeight(); 662 } 663 664 DLLEXPORT int STDCALL FPDFBitmap_GetStride(FPDF_BITMAP bitmap) 665 { 666 if (bitmap == NULL) return 0; 667 return ((CFX_DIBitmap*)bitmap)->GetPitch(); 668 } 669 670 DLLEXPORT void STDCALL FPDFBitmap_Destroy(FPDF_BITMAP bitmap) 671 { 672 if (bitmap == NULL) return; 673 delete (CFX_DIBitmap*)bitmap; 674 } 675 676 void FPDF_RenderPage_Retail(CRenderContext* pContext, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, 677 int rotate, int flags,FX_BOOL bNeedToRestore, IFSDK_PAUSE_Adapter * pause ) 678 { 679 CPDF_Page* pPage = (CPDF_Page*)page; 680 if (pPage == NULL) return; 681 682 if (!pContext->m_pOptions) 683 pContext->m_pOptions = new CPDF_RenderOptions; 684 // CPDF_RenderOptions options; 685 if (flags & FPDF_LCD_TEXT) 686 pContext->m_pOptions->m_Flags |= RENDER_CLEARTYPE; 687 else 688 pContext->m_pOptions->m_Flags &= ~RENDER_CLEARTYPE; 689 if (flags & FPDF_NO_NATIVETEXT) 690 pContext->m_pOptions->m_Flags |= RENDER_NO_NATIVETEXT; 691 if (flags & FPDF_RENDER_LIMITEDIMAGECACHE) 692 pContext->m_pOptions->m_Flags |= RENDER_LIMITEDIMAGECACHE; 693 if (flags & FPDF_RENDER_FORCEHALFTONE) 694 pContext->m_pOptions->m_Flags |= RENDER_FORCE_HALFTONE; 695 if (flags & FPDF_RENDER_NO_SMOOTHTEXT) 696 pContext->m_pOptions->m_Flags |= RENDER_NOTEXTSMOOTH; 697 if (flags & FPDF_RENDER_NO_SMOOTHIMAGE) 698 pContext->m_pOptions->m_Flags |= RENDER_NOIMAGESMOOTH; 699 if (flags & FPDF_RENDER_NO_SMOOTHPATH) 700 pContext->m_pOptions->m_Flags |= RENDER_NOPATHSMOOTH; 701 //Grayscale output 702 if (flags & FPDF_GRAYSCALE) 703 { 704 pContext->m_pOptions->m_ColorMode = RENDER_COLOR_GRAY; 705 pContext->m_pOptions->m_ForeColor = 0; 706 pContext->m_pOptions->m_BackColor = 0xffffff; 707 } 708 const CPDF_OCContext::UsageType usage = (flags & FPDF_PRINTING) ? CPDF_OCContext::Print : CPDF_OCContext::View; 709 710 pContext->m_pOptions->m_AddFlags = flags >> 8; 711 712 pContext->m_pOptions->m_pOCContext = new CPDF_OCContext(pPage->m_pDocument, usage); 713 714 715 CFX_AffineMatrix matrix; 716 pPage->GetDisplayMatrix(matrix, start_x, start_y, size_x, size_y, rotate); 717 718 FX_RECT clip; 719 clip.left = start_x; 720 clip.right = start_x + size_x; 721 clip.top = start_y; 722 clip.bottom = start_y + size_y; 723 pContext->m_pDevice->SaveState(); 724 pContext->m_pDevice->SetClip_Rect(&clip); 725 726 pContext->m_pContext = new CPDF_RenderContext; 727 pContext->m_pContext->Create(pPage); 728 pContext->m_pContext->AppendObjectList(pPage, &matrix); 729 730 if (flags & FPDF_ANNOT) { 731 pContext->m_pAnnots = new CPDF_AnnotList(pPage); 732 FX_BOOL bPrinting = pContext->m_pDevice->GetDeviceClass() != FXDC_DISPLAY; 733 pContext->m_pAnnots->DisplayAnnots(pPage, pContext->m_pContext, bPrinting, &matrix, TRUE, NULL); 734 } 735 736 pContext->m_pRenderer = new CPDF_ProgressiveRenderer; 737 pContext->m_pRenderer->Start(pContext->m_pContext, pContext->m_pDevice, pContext->m_pOptions, pause); 738 if (bNeedToRestore) 739 { 740 pContext->m_pDevice->RestoreState(); 741 } 742 } 743 744 DLLEXPORT int STDCALL FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document, int page_index, double* width, double* height) 745 { 746 CPDF_Document* pDoc = (CPDF_Document*)document; 747 if(pDoc == NULL) 748 return FALSE; 749 750 CPDF_Dictionary* pDict = pDoc->GetPage(page_index); 751 if (pDict == NULL) return FALSE; 752 753 CPDF_Page page; 754 page.Load(pDoc, pDict); 755 *width = page.GetPageWidth(); 756 *height = page.GetPageHeight(); 757 758 return TRUE; 759 } 760 761 DLLEXPORT FPDF_BOOL STDCALL FPDF_VIEWERREF_GetPrintScaling(FPDF_DOCUMENT document) 762 { 763 CPDF_Document* pDoc = (CPDF_Document*)document; 764 if (!pDoc) return TRUE; 765 CPDF_ViewerPreferences viewRef(pDoc); 766 return viewRef.PrintScaling(); 767 } 768 769 DLLEXPORT int STDCALL FPDF_VIEWERREF_GetNumCopies(FPDF_DOCUMENT document) 770 { 771 CPDF_Document* pDoc = (CPDF_Document*)document; 772 if (!pDoc) return 1; 773 CPDF_ViewerPreferences viewRef(pDoc); 774 return viewRef.NumCopies(); 775 } 776 777 DLLEXPORT FPDF_PAGERANGE STDCALL FPDF_VIEWERREF_GetPrintPageRange(FPDF_DOCUMENT document) 778 { 779 CPDF_Document* pDoc = (CPDF_Document*)document; 780 if (!pDoc) return NULL; 781 CPDF_ViewerPreferences viewRef(pDoc); 782 return viewRef.PrintPageRange(); 783 } 784 785 DLLEXPORT FPDF_DUPLEXTYPE STDCALL FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document) 786 { 787 CPDF_Document* pDoc = (CPDF_Document*)document; 788 if (!pDoc) return DuplexUndefined; 789 CPDF_ViewerPreferences viewRef(pDoc); 790 CFX_ByteString duplex = viewRef.Duplex(); 791 if (FX_BSTRC("Simplex") == duplex) 792 return Simplex; 793 if (FX_BSTRC("DuplexFlipShortEdge") == duplex) 794 return DuplexFlipShortEdge; 795 if (FX_BSTRC("DuplexFlipLongEdge") == duplex) 796 return DuplexFlipLongEdge; 797 return DuplexUndefined; 798 } 799 800 DLLEXPORT FPDF_DWORD STDCALL FPDF_CountNamedDests(FPDF_DOCUMENT document) 801 { 802 if (!document) return 0; 803 CPDF_Document* pDoc = (CPDF_Document*)document; 804 805 CPDF_Dictionary* pRoot = pDoc->GetRoot(); 806 if (!pRoot) return 0; 807 808 CPDF_NameTree nameTree(pDoc, FX_BSTRC("Dests")); 809 int count = nameTree.GetCount(); 810 CPDF_Dictionary* pDest = pRoot->GetDict(FX_BSTRC("Dests")); 811 if (pDest) 812 count += pDest->GetCount(); 813 return count; 814 } 815 816 DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document,FPDF_BYTESTRING name) 817 { 818 if (!document) 819 return NULL; 820 if (!name || name[0] == 0) 821 return NULL; 822 823 CPDF_Document* pDoc = (CPDF_Document*)document; 824 CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests")); 825 return name_tree.LookupNamedDest(pDoc, name); 826 } 827 828 DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDest(FPDF_DOCUMENT document, int index, void* buffer, long* buflen) 829 { 830 if (!buffer) 831 *buflen = 0; 832 if (!document || index < 0) return NULL; 833 CPDF_Document* pDoc = (CPDF_Document*)document; 834 835 CPDF_Dictionary* pRoot = pDoc->GetRoot(); 836 if (!pRoot) return NULL; 837 838 CPDF_Object* pDestObj = NULL; 839 CFX_ByteString bsName; 840 CPDF_NameTree nameTree(pDoc, FX_BSTRC("Dests")); 841 int count = nameTree.GetCount(); 842 if (index >= count) { 843 CPDF_Dictionary* pDest = pRoot->GetDict(FX_BSTRC("Dests")); 844 if (!pDest) return NULL; 845 if (index >= count + pDest->GetCount()) return NULL; 846 index -= count; 847 FX_POSITION pos = pDest->GetStartPos(); 848 int i = 0; 849 while (pos) { 850 pDestObj = pDest->GetNextElement(pos, bsName); 851 if (!pDestObj) continue; 852 if (i == index) break; 853 i++; 854 } 855 } else { 856 pDestObj = nameTree.LookupValue(index, bsName); 857 } 858 if (!pDestObj) return NULL; 859 if (pDestObj->GetType() == PDFOBJ_DICTIONARY) { 860 pDestObj = ((CPDF_Dictionary*)pDestObj)->GetArray(FX_BSTRC("D")); 861 if (!pDestObj) return NULL; 862 } 863 if (pDestObj->GetType() != PDFOBJ_ARRAY) return NULL; 864 CFX_WideString wsName = PDF_DecodeText(bsName); 865 CFX_ByteString utf16Name = wsName.UTF16LE_Encode(); 866 unsigned int len = utf16Name.GetLength(); 867 if (!buffer) { 868 *buflen = len; 869 } else if (*buflen >= len) { 870 memcpy(buffer, utf16Name.c_str(), len); 871 *buflen = len; 872 } else { 873 *buflen = -1; 874 } 875 return (FPDF_DEST)pDestObj; 876 } 877
