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/fxge/fx_ge.h" 8 #include "../../../include/fpdfapi/fpdf_render.h" 9 #include "../../../include/fpdfapi/fpdf_pageobj.h" 10 #include "../fpdf_page/pageint.h" 11 #include "render_int.h" 12 extern FX_BOOL IsAvailableMatrix(const CFX_AffineMatrix& matrix); 13 CPDF_Type3Cache::~CPDF_Type3Cache() 14 { 15 FX_POSITION pos = m_SizeMap.GetStartPosition(); 16 CFX_ByteString Key; 17 CPDF_Type3Glyphs* pSizeCache = NULL; 18 while(pos) { 19 pSizeCache = (CPDF_Type3Glyphs*)m_SizeMap.GetNextValue(pos); 20 delete pSizeCache; 21 } 22 m_SizeMap.RemoveAll(); 23 } 24 CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY) 25 { 26 _CPDF_UniqueKeyGen keygen; 27 keygen.Generate(4, FXSYS_round(pMatrix->a * 10000), FXSYS_round(pMatrix->b * 10000), 28 FXSYS_round(pMatrix->c * 10000), FXSYS_round(pMatrix->d * 10000)); 29 CFX_ByteStringC FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen); 30 CPDF_Type3Glyphs* pSizeCache = NULL; 31 if(!m_SizeMap.Lookup(FaceGlyphsKey, (void*&)pSizeCache)) { 32 pSizeCache = FX_NEW CPDF_Type3Glyphs; 33 m_SizeMap.SetAt(FaceGlyphsKey, pSizeCache); 34 } 35 CFX_GlyphBitmap* pGlyphBitmap; 36 if(pSizeCache->m_GlyphMap.Lookup((FX_LPVOID)(FX_UINTPTR)charcode, (void*&)pGlyphBitmap)) { 37 return pGlyphBitmap; 38 } 39 pGlyphBitmap = RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY); 40 pSizeCache->m_GlyphMap.SetAt((FX_LPVOID)(FX_UINTPTR)charcode, pGlyphBitmap); 41 return pGlyphBitmap; 42 } 43 CPDF_Type3Glyphs::~CPDF_Type3Glyphs() 44 { 45 FX_POSITION pos = m_GlyphMap.GetStartPosition(); 46 FX_LPVOID Key; 47 CFX_GlyphBitmap* pGlyphBitmap; 48 while(pos) { 49 m_GlyphMap.GetNextAssoc(pos, Key, (void*&)pGlyphBitmap); 50 delete pGlyphBitmap; 51 } 52 } 53 static int _AdjustBlue(FX_FLOAT pos, int& count, int blues[]) 54 { 55 FX_FLOAT min_distance = 1000000.0f * 1.0f; 56 int closest_pos = -1; 57 for (int i = 0; i < count; i ++) { 58 FX_FLOAT distance = (FX_FLOAT)FXSYS_fabs(pos - (FX_FLOAT)blues[i]); 59 if (distance < 1.0f * 80.0f / 100.0f && distance < min_distance) { 60 min_distance = distance; 61 closest_pos = i; 62 } 63 } 64 if (closest_pos >= 0) { 65 return blues[closest_pos]; 66 } 67 int new_pos = FXSYS_round(pos); 68 if (count == TYPE3_MAX_BLUES) { 69 return new_pos; 70 } 71 blues[count++] = new_pos; 72 return new_pos; 73 } 74 void CPDF_Type3Glyphs::AdjustBlue(FX_FLOAT top, FX_FLOAT bottom, int& top_line, int& bottom_line) 75 { 76 top_line = _AdjustBlue(top, m_TopBlueCount, m_TopBlue); 77 bottom_line = _AdjustBlue(bottom, m_BottomBlueCount, m_BottomBlue); 78 } 79 static FX_BOOL _IsScanLine1bpp(FX_LPBYTE pBuf, int width) 80 { 81 int size = width / 8; 82 for (int i = 0; i < size; i ++) 83 if (pBuf[i]) { 84 return TRUE; 85 } 86 if (width % 8) 87 if (pBuf[width / 8] & (0xff << (8 - width % 8))) { 88 return TRUE; 89 } 90 return FALSE; 91 } 92 static FX_BOOL _IsScanLine8bpp(FX_LPBYTE pBuf, int width) 93 { 94 for (int i = 0; i < width; i ++) 95 if (pBuf[i] > 0x40) { 96 return TRUE; 97 } 98 return FALSE; 99 } 100 static int _DetectFirstLastScan(const CFX_DIBitmap* pBitmap, FX_BOOL bFirst) 101 { 102 int height = pBitmap->GetHeight(), pitch = pBitmap->GetPitch(), width = pBitmap->GetWidth(); 103 int bpp = pBitmap->GetBPP(); 104 if (bpp > 8) { 105 width *= bpp / 8; 106 } 107 FX_LPBYTE pBuf = pBitmap->GetBuffer(); 108 int line = bFirst ? 0 : height - 1; 109 int line_step = bFirst ? 1 : -1; 110 int line_end = bFirst ? height : -1; 111 while (line != line_end) { 112 if (bpp == 1) { 113 if (_IsScanLine1bpp(pBuf + line * pitch, width)) { 114 return line; 115 } 116 } else { 117 if (_IsScanLine8bpp(pBuf + line * pitch, width)) { 118 return line; 119 } 120 } 121 line += line_step; 122 } 123 return -1; 124 } 125 CFX_GlyphBitmap* CPDF_Type3Cache::RenderGlyph(CPDF_Type3Glyphs* pSize, FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY) 126 { 127 CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode); 128 if (pChar == NULL || pChar->m_pBitmap == NULL) { 129 return NULL; 130 } 131 CFX_DIBitmap* pBitmap = pChar->m_pBitmap; 132 CFX_AffineMatrix image_matrix, text_matrix; 133 image_matrix = pChar->m_ImageMatrix; 134 text_matrix.Set(pMatrix->a, pMatrix->b, pMatrix->c, pMatrix->d, 0, 0); 135 image_matrix.Concat(text_matrix); 136 CFX_DIBitmap* pResBitmap = NULL; 137 int left, top; 138 if (FXSYS_fabs(image_matrix.b) < FXSYS_fabs(image_matrix.a) / 100 && FXSYS_fabs(image_matrix.c) < FXSYS_fabs(image_matrix.d) / 100) { 139 int top_line, bottom_line; 140 top_line = _DetectFirstLastScan(pBitmap, TRUE); 141 bottom_line = _DetectFirstLastScan(pBitmap, FALSE); 142 if (top_line == 0 && bottom_line == pBitmap->GetHeight() - 1) { 143 FX_FLOAT top_y = image_matrix.d + image_matrix.f; 144 FX_FLOAT bottom_y = image_matrix.f; 145 FX_BOOL bFlipped = top_y > bottom_y; 146 if (bFlipped) { 147 FX_FLOAT temp = top_y; 148 top_y = bottom_y; 149 bottom_y = temp; 150 } 151 pSize->AdjustBlue(top_y, bottom_y, top_line, bottom_line); 152 pResBitmap = pBitmap->StretchTo((int)(FXSYS_round(image_matrix.a) * retinaScaleX), (int)((bFlipped ? top_line - bottom_line : bottom_line - top_line) * retinaScaleY)); 153 top = top_line; 154 if (image_matrix.a < 0) { 155 image_matrix.Scale(retinaScaleX, retinaScaleY); 156 left = FXSYS_round(image_matrix.e + image_matrix.a); 157 } else { 158 left = FXSYS_round(image_matrix.e); 159 } 160 } else { 161 } 162 } 163 if (pResBitmap == NULL) { 164 image_matrix.Scale(retinaScaleX, retinaScaleY); 165 pResBitmap = pBitmap->TransformTo(&image_matrix, left, top); 166 } 167 if (pResBitmap == NULL) { 168 return NULL; 169 } 170 CFX_GlyphBitmap* pGlyph = FX_NEW CFX_GlyphBitmap; 171 pGlyph->m_Left = left; 172 pGlyph->m_Top = -top; 173 pGlyph->m_Bitmap.TakeOver(pResBitmap); 174 delete pResBitmap; 175 return pGlyph; 176 } 177 void _CPDF_UniqueKeyGen::Generate(int count, ...) 178 { 179 va_list argList; 180 va_start(argList, count); 181 for (int i = 0; i < count; i ++) { 182 int p = va_arg(argList, int); 183 ((FX_DWORD*)m_Key)[i] = p; 184 } 185 va_end(argList); 186 m_KeyLen = count * sizeof(FX_DWORD); 187 } 188 FX_BOOL CPDF_RenderStatus::ProcessText(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device, CFX_PathData* pClippingPath) 189 { 190 if(textobj->m_nChars == 0) { 191 return TRUE; 192 } 193 int text_render_mode = textobj->m_TextState.GetObject()->m_TextMode; 194 if (text_render_mode == 3) { 195 return TRUE; 196 } 197 CPDF_Font* pFont = textobj->m_TextState.GetFont(); 198 if (pFont->GetFontType() == PDFFONT_TYPE3) { 199 return ProcessType3Text(textobj, pObj2Device); 200 } 201 FX_BOOL bFill = FALSE, bStroke = FALSE, bClip = FALSE; 202 if (pClippingPath) { 203 bClip = TRUE; 204 } else { 205 switch (text_render_mode) { 206 case 0: 207 case 4: 208 bFill = TRUE; 209 break; 210 case 1: 211 case 5: 212 if (pFont->GetFace() == NULL && !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) { 213 bFill = TRUE; 214 } else { 215 bStroke = TRUE; 216 } 217 break; 218 case 2: 219 case 6: 220 if (pFont->GetFace() == NULL && !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) { 221 bFill = TRUE; 222 } else { 223 bFill = bStroke = TRUE; 224 } 225 break; 226 case 3: 227 case 7: 228 return TRUE; 229 default: 230 bFill = TRUE; 231 } 232 } 233 FX_ARGB stroke_argb = 0, fill_argb = 0; 234 FX_BOOL bPattern = FALSE; 235 if (bStroke) { 236 if (textobj->m_ColorState.GetStrokeColor()->IsPattern()) { 237 bPattern = TRUE; 238 } else { 239 stroke_argb = GetStrokeArgb(textobj); 240 } 241 } 242 if (bFill) { 243 if (textobj->m_ColorState.GetFillColor()->IsPattern()) { 244 bPattern = TRUE; 245 } else { 246 fill_argb = GetFillArgb(textobj); 247 } 248 } 249 CFX_AffineMatrix text_matrix; 250 textobj->GetTextMatrix(&text_matrix); 251 if(IsAvailableMatrix(text_matrix) == FALSE) { 252 return TRUE; 253 } 254 FX_FLOAT font_size = textobj->m_TextState.GetFontSize(); 255 if (bPattern) { 256 DrawTextPathWithPattern(textobj, pObj2Device, pFont, font_size, &text_matrix, bFill, bStroke); 257 return TRUE; 258 } 259 #if defined(_FPDFAPI_MINI_) 260 if (bFill) { 261 bStroke = FALSE; 262 } 263 if (bStroke) { 264 if (font_size * text_matrix.GetXUnit() * pObj2Device->GetXUnit() < 6) { 265 bStroke = FALSE; 266 } 267 } 268 #endif 269 if (bClip || bStroke) { 270 const CFX_AffineMatrix* pDeviceMatrix = pObj2Device; 271 CFX_AffineMatrix device_matrix; 272 if (bStroke) { 273 const FX_FLOAT* pCTM = textobj->m_TextState.GetObject()->m_CTM; 274 if (pCTM[0] != 1.0f || pCTM[3] != 1.0f) { 275 CFX_AffineMatrix ctm(pCTM[0], pCTM[1], pCTM[2], pCTM[3], 0, 0); 276 text_matrix.ConcatInverse(ctm); 277 device_matrix.Copy(ctm); 278 device_matrix.Concat(*pObj2Device); 279 pDeviceMatrix = &device_matrix; 280 } 281 } 282 int flag = 0; 283 if (bStroke && bFill) { 284 flag |= FX_FILL_STROKE; 285 flag |= FX_STROKE_TEXT_MODE; 286 } 287 #if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_) 288 const CPDF_GeneralStateData* pGeneralData = ((CPDF_PageObject*)textobj)->m_GeneralState; 289 if (pGeneralData && pGeneralData->m_StrokeAdjust) { 290 flag |= FX_STROKE_ADJUST; 291 } 292 #endif 293 if (m_Options.m_Flags & RENDER_NOTEXTSMOOTH) { 294 flag |= FXFILL_NOPATHSMOOTH; 295 } 296 return CPDF_TextRenderer::DrawTextPath(m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size, 297 &text_matrix, pDeviceMatrix, textobj->m_GraphState, fill_argb, stroke_argb, pClippingPath, flag); 298 } 299 text_matrix.Concat(*pObj2Device); 300 return CPDF_TextRenderer::DrawNormalText(m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size, 301 &text_matrix, fill_argb, &m_Options); 302 } 303 CPDF_Type3Cache* CPDF_RenderStatus::GetCachedType3(CPDF_Type3Font* pFont) 304 { 305 if (pFont->m_pDocument == NULL) { 306 return NULL; 307 } 308 pFont->m_pDocument->GetPageData()->GetFont(pFont->GetFontDict(), FALSE); 309 return pFont->m_pDocument->GetRenderData()->GetCachedType3(pFont); 310 } 311 static void ReleaseCachedType3(CPDF_Type3Font* pFont) 312 { 313 if (pFont->m_pDocument == NULL) { 314 return; 315 } 316 pFont->m_pDocument->GetRenderData()->ReleaseCachedType3(pFont); 317 pFont->m_pDocument->GetPageData()->ReleaseFont(pFont->GetFontDict()); 318 } 319 FX_BOOL CPDF_Type3Char::LoadBitmap(CPDF_RenderContext* pContext) 320 { 321 if (m_pBitmap != NULL || m_pForm == NULL) { 322 return TRUE; 323 } 324 if (m_pForm->CountObjects() == 1 && !m_bColored) { 325 CPDF_PageObject *pPageObj = m_pForm->GetObjectAt(m_pForm->GetFirstObjectPosition()); 326 if (pPageObj->m_Type == PDFPAGE_IMAGE) { 327 CPDF_ImageObject* pImage = (CPDF_ImageObject*)pPageObj; 328 m_ImageMatrix = pImage->m_Matrix; 329 const CFX_DIBSource* pSource = pImage->m_pImage->LoadDIBSource(); 330 if (pSource) { 331 m_pBitmap = pSource->Clone(); 332 delete pSource; 333 } 334 delete m_pForm; 335 m_pForm = NULL; 336 return TRUE; 337 } 338 if (pPageObj->m_Type == PDFPAGE_INLINES) { 339 CPDF_InlineImages *pInlines = (CPDF_InlineImages *)pPageObj; 340 if (pInlines->m_pStream) { 341 m_ImageMatrix = pInlines->m_Matrices[0]; 342 CPDF_DIBSource dibsrc; 343 if (!dibsrc.Load(pContext->m_pDocument, pInlines->m_pStream, NULL, NULL, NULL, NULL)) { 344 return FALSE; 345 } 346 m_pBitmap = dibsrc.Clone(); 347 delete m_pForm; 348 m_pForm = NULL; 349 return TRUE; 350 } 351 } 352 } 353 return FALSE; 354 } 355 class CPDF_RefType3Cache 356 { 357 public: 358 CPDF_RefType3Cache(CPDF_Type3Font* pType3Font) 359 { 360 m_dwCount = 0; 361 m_pType3Font = pType3Font; 362 } 363 ~CPDF_RefType3Cache() 364 { 365 while(m_dwCount--) { 366 ReleaseCachedType3(m_pType3Font); 367 } 368 } 369 FX_DWORD m_dwCount; 370 CPDF_Type3Font* m_pType3Font; 371 }; 372 FX_BOOL CPDF_RenderStatus::ProcessType3Text(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device) 373 { 374 CPDF_Type3Font* pType3Font = textobj->m_TextState.GetFont()->GetType3Font(); 375 for (int j = 0; j < m_Type3FontCache.GetSize(); j++) 376 if ((CPDF_Type3Font*)m_Type3FontCache.GetAt(j) == pType3Font) { 377 return TRUE; 378 } 379 CFX_Matrix dCTM = m_pDevice->GetCTM(); 380 FX_FLOAT sa = FXSYS_fabs(dCTM.a); 381 FX_FLOAT sd = FXSYS_fabs(dCTM.d); 382 CFX_AffineMatrix text_matrix; 383 textobj->GetTextMatrix(&text_matrix); 384 CFX_AffineMatrix char_matrix = pType3Font->GetFontMatrix(); 385 FX_FLOAT font_size = textobj->m_TextState.GetFontSize(); 386 char_matrix.Scale(font_size, font_size); 387 FX_ARGB fill_argb = GetFillArgb(textobj, TRUE); 388 int fill_alpha = FXARGB_A(fill_argb); 389 int device_class = m_pDevice->GetDeviceClass(); 390 FXTEXT_GLYPHPOS* pGlyphAndPos = NULL; 391 if (device_class == FXDC_DISPLAY) { 392 pGlyphAndPos = FX_Alloc(FXTEXT_GLYPHPOS, textobj->m_nChars); 393 FXSYS_memset32(pGlyphAndPos, 0, sizeof(FXTEXT_GLYPHPOS) * textobj->m_nChars); 394 } else if (fill_alpha < 255) { 395 return FALSE; 396 } 397 CPDF_RefType3Cache refTypeCache(pType3Font); 398 FX_DWORD *pChars = textobj->m_pCharCodes; 399 if (textobj->m_nChars == 1) { 400 pChars = (FX_DWORD*)(&textobj->m_pCharCodes); 401 } 402 for (int iChar = 0; iChar < textobj->m_nChars; iChar ++) { 403 FX_DWORD charcode = pChars[iChar]; 404 if (charcode == (FX_DWORD) - 1) { 405 continue; 406 } 407 CPDF_Type3Char* pType3Char = pType3Font->LoadChar(charcode); 408 if (pType3Char == NULL) { 409 continue; 410 } 411 CFX_AffineMatrix matrix = char_matrix; 412 matrix.e += iChar ? textobj->m_pCharPos[iChar - 1] : 0; 413 matrix.Concat(text_matrix); 414 matrix.Concat(*pObj2Device); 415 if (!pType3Char->LoadBitmap(m_pContext)) { 416 if (pGlyphAndPos) { 417 for (int i = 0; i < iChar; i ++) { 418 FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[i]; 419 if (glyph.m_pGlyph == NULL) { 420 continue; 421 } 422 m_pDevice->SetBitMask(&glyph.m_pGlyph->m_Bitmap, 423 glyph.m_OriginX + glyph.m_pGlyph->m_Left, 424 glyph.m_OriginY - glyph.m_pGlyph->m_Top, fill_argb); 425 } 426 FX_Free(pGlyphAndPos); 427 pGlyphAndPos = NULL; 428 } 429 CPDF_GraphicStates* pStates = CloneObjStates(textobj, FALSE); 430 CPDF_RenderOptions Options = m_Options; 431 Options.m_Flags |= RENDER_FORCE_HALFTONE | RENDER_RECT_AA; 432 Options.m_Flags &= ~RENDER_FORCE_DOWNSAMPLE; 433 CPDF_Dictionary* pFormResource = NULL; 434 if (pType3Char->m_pForm && pType3Char->m_pForm->m_pFormDict) { 435 pFormResource = pType3Char->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources")); 436 } 437 if (fill_alpha == 255) { 438 CPDF_RenderStatus status; 439 status.Initialize(m_Level + 1, m_pContext, m_pDevice, NULL, NULL, this, pStates, &Options, 440 pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb); 441 status.m_Type3FontCache.Append(m_Type3FontCache); 442 status.m_Type3FontCache.Add(pType3Font); 443 m_pDevice->SaveState(); 444 status.RenderObjectList(pType3Char->m_pForm, &matrix); 445 m_pDevice->RestoreState(); 446 } else { 447 CFX_FloatRect rect_f = pType3Char->m_pForm->CalcBoundingBox(); 448 rect_f.Transform(&matrix); 449 FX_RECT rect = rect_f.GetOutterRect(); 450 CFX_FxgeDevice bitmap_device; 451 if (!bitmap_device.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_Argb)) { 452 return TRUE; 453 } 454 bitmap_device.GetBitmap()->Clear(0); 455 CPDF_RenderStatus status; 456 status.Initialize(m_Level + 1, m_pContext, &bitmap_device, NULL, NULL, this, pStates, &Options, 457 pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb); 458 status.m_Type3FontCache.Append(m_Type3FontCache); 459 status.m_Type3FontCache.Add(pType3Font); 460 matrix.TranslateI(-rect.left, -rect.top); 461 matrix.Scale(sa, sd); 462 status.RenderObjectList(pType3Char->m_pForm, &matrix); 463 m_pDevice->SetDIBits(bitmap_device.GetBitmap(), rect.left, rect.top); 464 } 465 delete pStates; 466 } else if (pType3Char->m_pBitmap) { 467 if (device_class == FXDC_DISPLAY) { 468 CPDF_Type3Cache* pCache = GetCachedType3(pType3Font); 469 refTypeCache.m_dwCount++; 470 CFX_GlyphBitmap* pBitmap = pCache->LoadGlyph(charcode, &matrix, sa, sd); 471 if (pBitmap == NULL) { 472 continue; 473 } 474 int origin_x = FXSYS_round(matrix.e); 475 int origin_y = FXSYS_round(matrix.f); 476 if (pGlyphAndPos) { 477 pGlyphAndPos[iChar].m_pGlyph = pBitmap; 478 pGlyphAndPos[iChar].m_OriginX = origin_x; 479 pGlyphAndPos[iChar].m_OriginY = origin_y; 480 } else { 481 m_pDevice->SetBitMask(&pBitmap->m_Bitmap, origin_x + pBitmap->m_Left, origin_y - pBitmap->m_Top, fill_argb); 482 } 483 } else { 484 CFX_AffineMatrix image_matrix = pType3Char->m_ImageMatrix; 485 image_matrix.Concat(matrix); 486 CPDF_ImageRenderer renderer; 487 if (renderer.Start(this, pType3Char->m_pBitmap, fill_argb, 255, &image_matrix, 0, FALSE)) { 488 renderer.Continue(NULL); 489 } 490 if (!renderer.m_Result) { 491 return FALSE; 492 } 493 } 494 } 495 } 496 if (pGlyphAndPos) { 497 FX_RECT rect = FXGE_GetGlyphsBBox(pGlyphAndPos, textobj->m_nChars, 0, sa, sd); 498 CFX_DIBitmap bitmap; 499 if (!bitmap.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_8bppMask)) { 500 FX_Free(pGlyphAndPos); 501 return TRUE; 502 } 503 bitmap.Clear(0); 504 for (int iChar = 0; iChar < textobj->m_nChars; iChar ++) { 505 FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar]; 506 if (glyph.m_pGlyph == NULL) { 507 continue; 508 } 509 bitmap.TransferBitmap((int)((glyph.m_OriginX + glyph.m_pGlyph->m_Left - rect.left) * sa), 510 (int)((glyph.m_OriginY - glyph.m_pGlyph->m_Top - rect.top) * sd), 511 glyph.m_pGlyph->m_Bitmap.GetWidth(), glyph.m_pGlyph->m_Bitmap.GetHeight(), 512 &glyph.m_pGlyph->m_Bitmap, 0, 0); 513 } 514 m_pDevice->SetBitMask(&bitmap, rect.left, rect.top, fill_argb); 515 FX_Free(pGlyphAndPos); 516 } 517 return TRUE; 518 } 519 class CPDF_CharPosList 520 { 521 public: 522 CPDF_CharPosList(); 523 ~CPDF_CharPosList(); 524 void Load(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, CPDF_Font* pFont, FX_FLOAT font_size); 525 FXTEXT_CHARPOS* m_pCharPos; 526 FX_DWORD m_nChars; 527 }; 528 FX_FLOAT _CIDTransformToFloat(FX_BYTE ch); 529 CPDF_CharPosList::CPDF_CharPosList() 530 { 531 m_pCharPos = NULL; 532 } 533 CPDF_CharPosList::~CPDF_CharPosList() 534 { 535 if (m_pCharPos) { 536 FX_Free(m_pCharPos); 537 } 538 } 539 void CPDF_CharPosList::Load(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, CPDF_Font* pFont, 540 FX_FLOAT FontSize) 541 { 542 m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, nChars); 543 FXSYS_memset32(m_pCharPos, 0, sizeof(FXTEXT_CHARPOS) * nChars); 544 m_nChars = 0; 545 CPDF_CIDFont* pCIDFont = pFont->GetCIDFont(); 546 FX_BOOL bVertWriting = pCIDFont && pCIDFont->IsVertWriting(); 547 for (int iChar = 0; iChar < nChars; iChar ++) { 548 FX_DWORD CharCode = nChars == 1 ? (FX_DWORD)(FX_UINTPTR)pCharCodes : pCharCodes[iChar]; 549 if (CharCode == (FX_DWORD) - 1) { 550 continue; 551 } 552 FX_BOOL bVert = FALSE; 553 FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++]; 554 if (pCIDFont) { 555 charpos.m_bFontStyle = pCIDFont->IsFontStyleFromCharCode(CharCode); 556 } 557 charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert); 558 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ 559 charpos.m_ExtGID = pFont->GlyphFromCharCodeExt(CharCode); 560 #endif 561 if (!pFont->IsEmbedded() && pFont->GetFontType() != PDFFONT_CIDFONT) { 562 charpos.m_FontCharWidth = pFont->GetCharWidthF(CharCode); 563 } else { 564 charpos.m_FontCharWidth = 0; 565 } 566 charpos.m_OriginX = iChar ? pCharPos[iChar - 1] : 0; 567 charpos.m_OriginY = 0; 568 charpos.m_bGlyphAdjust = FALSE; 569 if (pCIDFont == NULL) { 570 continue; 571 } 572 FX_WORD CID = pCIDFont->CIDFromCharCode(CharCode); 573 if (bVertWriting) { 574 charpos.m_OriginY = charpos.m_OriginX; 575 charpos.m_OriginX = 0; 576 short vx, vy; 577 pCIDFont->GetVertOrigin(CID, vx, vy); 578 charpos.m_OriginX -= FontSize * vx / 1000; 579 charpos.m_OriginY -= FontSize * vy / 1000; 580 } 581 FX_LPCBYTE pTransform = pCIDFont->GetCIDTransform(CID); 582 if (pTransform && !bVert) { 583 charpos.m_AdjustMatrix[0] = _CIDTransformToFloat(pTransform[0]); 584 charpos.m_AdjustMatrix[2] = _CIDTransformToFloat(pTransform[2]); 585 charpos.m_AdjustMatrix[1] = _CIDTransformToFloat(pTransform[1]); 586 charpos.m_AdjustMatrix[3] = _CIDTransformToFloat(pTransform[3]); 587 charpos.m_OriginX += _CIDTransformToFloat(pTransform[4]) * FontSize; 588 charpos.m_OriginY += _CIDTransformToFloat(pTransform[5]) * FontSize; 589 charpos.m_bGlyphAdjust = TRUE; 590 } 591 } 592 } 593 FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, 594 CPDF_Font* pFont, FX_FLOAT font_size, 595 const CFX_AffineMatrix* pText2User, const CFX_AffineMatrix* pUser2Device, 596 const CFX_GraphStateData* pGraphState, 597 FX_ARGB fill_argb, FX_ARGB stroke_argb, CFX_PathData* pClippingPath, int nFlag) 598 { 599 CFX_FontCache* pCache = pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() : NULL; 600 CPDF_CharPosList CharPosList; 601 CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size); 602 return pDevice->DrawTextPath(CharPosList.m_nChars, CharPosList.m_pCharPos, 603 &pFont->m_Font, pCache, font_size, pText2User, pUser2Device, 604 pGraphState, fill_argb, stroke_argb, pClippingPath, nFlag); 605 } 606 void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, int left, int top, CPDF_Font* pFont, int height, 607 const CFX_ByteString& str, FX_ARGB argb) 608 { 609 FX_RECT font_bbox; 610 pFont->GetFontBBox(font_bbox); 611 FX_FLOAT font_size = (FX_FLOAT)height * 1000.0f / (FX_FLOAT)(font_bbox.top - font_bbox.bottom); 612 FX_FLOAT origin_x = (FX_FLOAT)left; 613 FX_FLOAT origin_y = (FX_FLOAT)top + font_size * (FX_FLOAT)font_bbox.top / 1000.0f; 614 CFX_AffineMatrix matrix(1.0f, 0, 0, -1.0f, 0, 0); 615 DrawTextString(pDevice, origin_x, origin_y, pFont, font_size, &matrix, str, argb); 616 } 617 void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, FX_FLOAT origin_x, FX_FLOAT origin_y, CPDF_Font* pFont, FX_FLOAT font_size, 618 const CFX_AffineMatrix* pMatrix, const CFX_ByteString& str, FX_ARGB fill_argb, 619 FX_ARGB stroke_argb, const CFX_GraphStateData* pGraphState, const CPDF_RenderOptions* pOptions) 620 { 621 int nChars = pFont->CountChar(str, str.GetLength()); 622 if (nChars == 0) { 623 return; 624 } 625 FX_DWORD charcode; 626 int offset = 0; 627 FX_DWORD* pCharCodes; 628 FX_FLOAT* pCharPos; 629 if (nChars == 1) { 630 charcode = pFont->GetNextChar(str, offset); 631 pCharCodes = (FX_DWORD*)(FX_UINTPTR)charcode; 632 pCharPos = NULL; 633 } else { 634 pCharCodes = FX_Alloc(FX_DWORD, nChars); 635 pCharPos = FX_Alloc(FX_FLOAT, nChars - 1); 636 FX_FLOAT cur_pos = 0; 637 for (int i = 0; i < nChars; i ++) { 638 pCharCodes[i] = pFont->GetNextChar(str, offset); 639 if (i) { 640 pCharPos[i - 1] = cur_pos; 641 } 642 cur_pos += pFont->GetCharWidthF(pCharCodes[i]) * font_size / 1000; 643 } 644 } 645 CFX_AffineMatrix matrix; 646 if (pMatrix) { 647 matrix = *pMatrix; 648 } 649 matrix.e = origin_x; 650 matrix.f = origin_y; 651 if (pFont->GetFontType() == PDFFONT_TYPE3) 652 ; 653 else if (stroke_argb == 0) { 654 DrawNormalText(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, &matrix, fill_argb, pOptions); 655 } else 656 DrawTextPath(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, &matrix, NULL, pGraphState, 657 fill_argb, stroke_argb, NULL); 658 if (nChars > 1) { 659 FX_Free(pCharCodes); 660 FX_Free(pCharPos); 661 } 662 } 663 FX_BOOL CPDF_TextRenderer::DrawNormalText(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, 664 CPDF_Font* pFont, FX_FLOAT font_size, 665 const CFX_AffineMatrix* pText2Device, 666 FX_ARGB fill_argb, const CPDF_RenderOptions* pOptions) 667 { 668 CFX_FontCache* pCache = pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() : NULL; 669 CPDF_CharPosList CharPosList; 670 CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size); 671 int FXGE_flags = 0; 672 if (pOptions) { 673 FX_DWORD dwFlags = pOptions->m_Flags; 674 if (dwFlags & RENDER_CLEARTYPE) { 675 FXGE_flags |= FXTEXT_CLEARTYPE; 676 if (dwFlags & RENDER_BGR_STRIPE) { 677 FXGE_flags |= FXTEXT_BGR_STRIPE; 678 } 679 } 680 if (dwFlags & RENDER_NOTEXTSMOOTH) { 681 FXGE_flags |= FXTEXT_NOSMOOTH; 682 } 683 if (dwFlags & RENDER_PRINTGRAPHICTEXT) { 684 FXGE_flags |= FXTEXT_PRINTGRAPHICTEXT; 685 } 686 if (dwFlags & RENDER_NO_NATIVETEXT) { 687 FXGE_flags |= FXTEXT_NO_NATIVETEXT; 688 } 689 if (dwFlags & RENDER_PRINTIMAGETEXT) { 690 FXGE_flags |= FXTEXT_PRINTIMAGETEXT; 691 } 692 } else { 693 FXGE_flags = FXTEXT_CLEARTYPE; 694 } 695 if (pFont->GetFontType() & PDFFONT_CIDFONT) { 696 FXGE_flags |= FXFONT_CIDFONT; 697 } 698 return pDevice->DrawNormalText(CharPosList.m_nChars, CharPosList.m_pCharPos, &pFont->m_Font, pCache, font_size, pText2Device, fill_argb, FXGE_flags); 699 } 700 void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device, 701 CPDF_Font* pFont, FX_FLOAT font_size, 702 const CFX_AffineMatrix* pTextMatrix, FX_BOOL bFill, FX_BOOL bStroke) 703 { 704 if (!bStroke) { 705 CPDF_PathObject path; 706 CPDF_TextObject* pCopy = FX_NEW CPDF_TextObject; 707 pCopy->Copy(textobj); 708 path.m_bStroke = FALSE; 709 path.m_FillType = FXFILL_WINDING; 710 path.m_ClipPath.AppendTexts(&pCopy, 1); 711 path.m_ColorState = textobj->m_ColorState; 712 path.m_Path.New()->AppendRect(textobj->m_Left, textobj->m_Bottom, textobj->m_Right, textobj->m_Top); 713 path.m_Left = textobj->m_Left; 714 path.m_Bottom = textobj->m_Bottom; 715 path.m_Right = textobj->m_Right; 716 path.m_Top = textobj->m_Top; 717 RenderSingleObject(&path, pObj2Device); 718 return; 719 } 720 CFX_FontCache* pCache; 721 if (pFont->m_pDocument) { 722 pCache = pFont->m_pDocument->GetRenderData()->GetFontCache(); 723 } else { 724 pCache = CFX_GEModule::Get()->GetFontCache(); 725 } 726 CFX_FaceCache* pFaceCache = pCache->GetCachedFace(&pFont->m_Font); 727 FX_FONTCACHE_DEFINE(pCache, &pFont->m_Font); 728 CPDF_CharPosList CharPosList; 729 CharPosList.Load(textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size); 730 for (FX_DWORD i = 0; i < CharPosList.m_nChars; i ++) { 731 FXTEXT_CHARPOS& charpos = CharPosList.m_pCharPos[i]; 732 const CFX_PathData* pPath = pFaceCache->LoadGlyphPath(&pFont->m_Font, charpos.m_GlyphIndex, 733 charpos.m_FontCharWidth); 734 if (pPath == NULL) { 735 continue; 736 } 737 CPDF_PathObject path; 738 path.m_GraphState = textobj->m_GraphState; 739 path.m_ColorState = textobj->m_ColorState; 740 CFX_AffineMatrix matrix; 741 if (charpos.m_bGlyphAdjust) 742 matrix.Set(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1], 743 charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0); 744 matrix.Concat(font_size, 0, 0, font_size, charpos.m_OriginX, charpos.m_OriginY); 745 path.m_Path.New()->Append(pPath, &matrix); 746 path.m_Matrix = *pTextMatrix; 747 path.m_bStroke = bStroke; 748 path.m_FillType = bFill ? FXFILL_WINDING : 0; 749 path.CalcBoundingBox(); 750 ProcessPath(&path, pObj2Device); 751 } 752 } 753 CFX_PathData* CPDF_Font::LoadGlyphPath(FX_DWORD charcode, int dest_width) 754 { 755 int glyph_index = GlyphFromCharCode(charcode); 756 if (m_Font.m_Face == NULL) { 757 return NULL; 758 } 759 return m_Font.LoadGlyphPath(glyph_index, dest_width); 760 } 761
