1 // Copyright 2016 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 "core/fxge/cfx_renderdevice.h" 8 9 #include <algorithm> 10 #include <memory> 11 #include <utility> 12 #include <vector> 13 14 #include "core/fxcrt/fx_safe_types.h" 15 #include "core/fxge/cfx_defaultrenderdevice.h" 16 #include "core/fxge/cfx_facecache.h" 17 #include "core/fxge/cfx_font.h" 18 #include "core/fxge/cfx_fontmgr.h" 19 #include "core/fxge/cfx_gemodule.h" 20 #include "core/fxge/cfx_graphstatedata.h" 21 #include "core/fxge/cfx_pathdata.h" 22 #include "core/fxge/dib/cfx_imagerenderer.h" 23 #include "core/fxge/ifx_renderdevicedriver.h" 24 25 #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ 26 #include "third_party/skia/include/core/SkTypes.h" 27 #endif 28 29 namespace { 30 31 void AdjustGlyphSpace(std::vector<FXTEXT_GLYPHPOS>* pGlyphAndPos) { 32 ASSERT(pGlyphAndPos->size() > 1); 33 std::vector<FXTEXT_GLYPHPOS>& glyphs = *pGlyphAndPos; 34 bool bVertical = glyphs.back().m_Origin.x == glyphs.front().m_Origin.x; 35 if (!bVertical && (glyphs.back().m_Origin.y != glyphs.front().m_Origin.y)) 36 return; 37 38 for (size_t i = glyphs.size() - 1; i > 1; --i) { 39 FXTEXT_GLYPHPOS& next = glyphs[i]; 40 int next_origin = bVertical ? next.m_Origin.y : next.m_Origin.x; 41 float next_origin_f = bVertical ? next.m_fOrigin.y : next.m_fOrigin.x; 42 43 FXTEXT_GLYPHPOS& current = glyphs[i - 1]; 44 int& current_origin = bVertical ? current.m_Origin.y : current.m_Origin.x; 45 float current_origin_f = 46 bVertical ? current.m_fOrigin.y : current.m_fOrigin.x; 47 48 int space = next_origin - current_origin; 49 float space_f = next_origin_f - current_origin_f; 50 float error = fabs(space_f) - fabs(static_cast<float>(space)); 51 if (error > 0.5f) 52 current_origin += space > 0 ? -1 : 1; 53 } 54 } 55 56 const uint8_t g_TextGammaAdjust[256] = { 57 0, 2, 3, 4, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, 58 19, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 59 36, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 51, 52, 60 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 61 68, 69, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 62 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 63 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 64 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 65 129, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 66 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 156, 67 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 68 172, 173, 174, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 69 186, 187, 188, 189, 190, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 70 200, 201, 202, 203, 204, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 71 214, 215, 216, 217, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 72 228, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 239, 240, 73 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 250, 251, 252, 253, 254, 74 255, 75 }; 76 77 int TextGammaAdjust(int value) { 78 ASSERT(value >= 0); 79 ASSERT(value <= 255); 80 return g_TextGammaAdjust[value]; 81 } 82 83 int CalcAlpha(int src, int alpha) { 84 return src * alpha / 255; 85 } 86 87 void Merge(uint8_t src, int channel, int alpha, uint8_t* dest) { 88 *dest = FXDIB_ALPHA_MERGE(*dest, channel, CalcAlpha(src, alpha)); 89 } 90 91 void MergeGammaAdjust(uint8_t src, int channel, int alpha, uint8_t* dest) { 92 *dest = 93 FXDIB_ALPHA_MERGE(*dest, channel, CalcAlpha(TextGammaAdjust(src), alpha)); 94 } 95 96 void MergeGammaAdjustBgr(const uint8_t* src, 97 int r, 98 int g, 99 int b, 100 int a, 101 uint8_t* dest) { 102 MergeGammaAdjust(src[0], b, a, &dest[0]); 103 MergeGammaAdjust(src[1], g, a, &dest[1]); 104 MergeGammaAdjust(src[2], r, a, &dest[2]); 105 } 106 107 void MergeGammaAdjustRgb(const uint8_t* src, 108 int r, 109 int g, 110 int b, 111 int a, 112 uint8_t* dest) { 113 MergeGammaAdjust(src[2], b, a, &dest[0]); 114 MergeGammaAdjust(src[1], g, a, &dest[1]); 115 MergeGammaAdjust(src[0], r, a, &dest[2]); 116 } 117 118 int AverageRgb(const uint8_t* src) { 119 return (src[0] + src[1] + src[2]) / 3; 120 } 121 122 uint8_t CalculateDestAlpha(uint8_t back_alpha, int src_alpha) { 123 return back_alpha + src_alpha - back_alpha * src_alpha / 255; 124 } 125 126 void ApplyAlpha(uint8_t* dest, int b, int g, int r, int alpha) { 127 dest[0] = FXDIB_ALPHA_MERGE(dest[0], b, alpha); 128 dest[1] = FXDIB_ALPHA_MERGE(dest[1], g, alpha); 129 dest[2] = FXDIB_ALPHA_MERGE(dest[2], r, alpha); 130 } 131 132 void ApplyDestAlpha(uint8_t back_alpha, 133 int src_alpha, 134 int r, 135 int g, 136 int b, 137 uint8_t* dest) { 138 uint8_t dest_alpha = CalculateDestAlpha(back_alpha, src_alpha); 139 ApplyAlpha(dest, b, g, r, src_alpha * 255 / dest_alpha); 140 dest[3] = dest_alpha; 141 } 142 143 void NormalizeArgb(int src_value, 144 int r, 145 int g, 146 int b, 147 int a, 148 uint8_t* dest, 149 int src_alpha) { 150 uint8_t back_alpha = dest[3]; 151 if (back_alpha == 0) 152 FXARGB_SETDIB(dest, FXARGB_MAKE(src_alpha, r, g, b)); 153 else if (src_alpha != 0) 154 ApplyDestAlpha(back_alpha, src_alpha, r, g, b, dest); 155 } 156 157 void NormalizeDest(bool has_alpha, 158 int src_value, 159 int r, 160 int g, 161 int b, 162 int a, 163 uint8_t* dest) { 164 if (has_alpha) { 165 NormalizeArgb(src_value, r, g, b, a, dest, 166 CalcAlpha(TextGammaAdjust(src_value), a)); 167 return; 168 } 169 int src_alpha = CalcAlpha(TextGammaAdjust(src_value), a); 170 if (src_alpha == 0) 171 return; 172 173 ApplyAlpha(dest, b, g, r, src_alpha); 174 } 175 176 void NormalizeSrc(bool has_alpha, 177 int src_value, 178 int r, 179 int g, 180 int b, 181 int a, 182 uint8_t* dest) { 183 if (!has_alpha) { 184 ApplyAlpha(dest, b, g, r, CalcAlpha(TextGammaAdjust(src_value), a)); 185 return; 186 } 187 int src_alpha = CalcAlpha(TextGammaAdjust(src_value), a); 188 if (src_alpha != 0) 189 NormalizeArgb(src_value, r, g, b, a, dest, src_alpha); 190 } 191 192 void NextPixel(uint8_t** src_scan, uint8_t** dst_scan, int bpp) { 193 *src_scan += 3; 194 *dst_scan += bpp; 195 } 196 197 void SetAlpha(bool has_alpha, uint8_t* alpha) { 198 if (has_alpha) 199 alpha[3] = 255; 200 } 201 202 void DrawNormalTextHelper(const RetainPtr<CFX_DIBitmap>& bitmap, 203 const RetainPtr<CFX_DIBitmap>& pGlyph, 204 int nrows, 205 int left, 206 int top, 207 int start_col, 208 int end_col, 209 bool bNormal, 210 bool bBGRStripe, 211 int x_subpixel, 212 int a, 213 int r, 214 int g, 215 int b) { 216 const bool has_alpha = bitmap->GetFormat() == FXDIB_Argb; 217 uint8_t* src_buf = pGlyph->GetBuffer(); 218 int src_pitch = pGlyph->GetPitch(); 219 uint8_t* dest_buf = bitmap->GetBuffer(); 220 int dest_pitch = bitmap->GetPitch(); 221 const int Bpp = has_alpha ? 4 : bitmap->GetBPP() / 8; 222 for (int row = 0; row < nrows; ++row) { 223 int dest_row = row + top; 224 if (dest_row < 0 || dest_row >= bitmap->GetHeight()) 225 continue; 226 227 uint8_t* src_scan = src_buf + row * src_pitch + (start_col - left) * 3; 228 uint8_t* dest_scan = dest_buf + dest_row * dest_pitch + start_col * Bpp; 229 if (bBGRStripe) { 230 if (x_subpixel == 0) { 231 for (int col = start_col; col < end_col; ++col) { 232 if (has_alpha) { 233 Merge(src_scan[2], r, a, &dest_scan[2]); 234 Merge(src_scan[1], g, a, &dest_scan[1]); 235 Merge(src_scan[0], b, a, &dest_scan[0]); 236 } else { 237 MergeGammaAdjustBgr(&src_scan[0], r, g, b, a, &dest_scan[0]); 238 } 239 SetAlpha(has_alpha, dest_scan); 240 NextPixel(&src_scan, &dest_scan, Bpp); 241 } 242 continue; 243 } 244 if (x_subpixel == 1) { 245 MergeGammaAdjust(src_scan[1], r, a, &dest_scan[2]); 246 MergeGammaAdjust(src_scan[0], g, a, &dest_scan[1]); 247 if (start_col > left) 248 MergeGammaAdjust(src_scan[-1], b, a, &dest_scan[0]); 249 SetAlpha(has_alpha, dest_scan); 250 NextPixel(&src_scan, &dest_scan, Bpp); 251 for (int col = start_col + 1; col < end_col - 1; ++col) { 252 MergeGammaAdjustBgr(&src_scan[-1], r, g, b, a, &dest_scan[0]); 253 SetAlpha(has_alpha, dest_scan); 254 NextPixel(&src_scan, &dest_scan, Bpp); 255 } 256 continue; 257 } 258 MergeGammaAdjust(src_scan[0], r, a, &dest_scan[2]); 259 if (start_col > left) { 260 MergeGammaAdjust(src_scan[-1], g, a, &dest_scan[1]); 261 MergeGammaAdjust(src_scan[-2], b, a, &dest_scan[0]); 262 } 263 SetAlpha(has_alpha, dest_scan); 264 NextPixel(&src_scan, &dest_scan, Bpp); 265 for (int col = start_col + 1; col < end_col - 1; ++col) { 266 MergeGammaAdjustBgr(&src_scan[-2], r, g, b, a, &dest_scan[0]); 267 SetAlpha(has_alpha, dest_scan); 268 NextPixel(&src_scan, &dest_scan, Bpp); 269 } 270 continue; 271 } 272 if (x_subpixel == 0) { 273 for (int col = start_col; col < end_col; ++col) { 274 if (bNormal) { 275 int src_value = AverageRgb(&src_scan[0]); 276 NormalizeDest(has_alpha, src_value, r, g, b, a, dest_scan); 277 } else { 278 MergeGammaAdjustRgb(&src_scan[0], r, g, b, a, &dest_scan[0]); 279 SetAlpha(has_alpha, dest_scan); 280 } 281 NextPixel(&src_scan, &dest_scan, Bpp); 282 } 283 continue; 284 } 285 if (x_subpixel == 1) { 286 if (bNormal) { 287 int src_value = start_col > left ? AverageRgb(&src_scan[-1]) 288 : (src_scan[0] + src_scan[1]) / 3; 289 NormalizeSrc(has_alpha, src_value, r, g, b, a, dest_scan); 290 } else { 291 if (start_col > left) 292 MergeGammaAdjust(src_scan[-1], r, a, &dest_scan[2]); 293 MergeGammaAdjust(src_scan[0], g, a, &dest_scan[1]); 294 MergeGammaAdjust(src_scan[1], b, a, &dest_scan[0]); 295 SetAlpha(has_alpha, dest_scan); 296 } 297 NextPixel(&src_scan, &dest_scan, Bpp); 298 for (int col = start_col + 1; col < end_col; ++col) { 299 if (bNormal) { 300 int src_value = AverageRgb(&src_scan[-1]); 301 NormalizeDest(has_alpha, src_value, r, g, b, a, dest_scan); 302 } else { 303 MergeGammaAdjustRgb(&src_scan[-1], r, g, b, a, &dest_scan[0]); 304 SetAlpha(has_alpha, dest_scan); 305 } 306 NextPixel(&src_scan, &dest_scan, Bpp); 307 } 308 continue; 309 } 310 if (bNormal) { 311 int src_value = 312 start_col > left ? AverageRgb(&src_scan[-2]) : src_scan[0] / 3; 313 NormalizeSrc(has_alpha, src_value, r, g, b, a, dest_scan); 314 } else { 315 if (start_col > left) { 316 MergeGammaAdjust(src_scan[-2], r, a, &dest_scan[2]); 317 MergeGammaAdjust(src_scan[-1], g, a, &dest_scan[1]); 318 } 319 MergeGammaAdjust(src_scan[0], b, a, &dest_scan[0]); 320 SetAlpha(has_alpha, dest_scan); 321 } 322 NextPixel(&src_scan, &dest_scan, Bpp); 323 for (int col = start_col + 1; col < end_col; ++col) { 324 if (bNormal) { 325 int src_value = AverageRgb(&src_scan[-2]); 326 NormalizeDest(has_alpha, src_value, r, g, b, a, dest_scan); 327 } else { 328 MergeGammaAdjustRgb(&src_scan[-2], r, g, b, a, &dest_scan[0]); 329 SetAlpha(has_alpha, dest_scan); 330 } 331 NextPixel(&src_scan, &dest_scan, Bpp); 332 } 333 } 334 } 335 336 bool ShouldDrawDeviceText(const CFX_Font* pFont, uint32_t text_flags) { 337 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_ 338 if (text_flags & FXFONT_CIDFONT) 339 return false; 340 341 const ByteString bsPsName = pFont->GetPsName(); 342 if (bsPsName.Contains("+ZJHL")) 343 return false; 344 345 if (bsPsName == "CNAAJI+cmex10") 346 return false; 347 #endif 348 return true; 349 } 350 351 } // namespace 352 353 FXTEXT_CHARPOS::FXTEXT_CHARPOS() 354 : m_Unicode(0), 355 m_GlyphIndex(0), 356 m_FontCharWidth(0), 357 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_ 358 m_ExtGID(0), 359 #endif 360 m_FallbackFontPosition(0), 361 m_bGlyphAdjust(false), 362 m_bFontStyle(false) { 363 } 364 365 FXTEXT_CHARPOS::FXTEXT_CHARPOS(const FXTEXT_CHARPOS&) = default; 366 367 FXTEXT_CHARPOS::~FXTEXT_CHARPOS(){}; 368 369 CFX_RenderDevice::CFX_RenderDevice() 370 : m_pBitmap(nullptr), 371 m_Width(0), 372 m_Height(0), 373 m_bpp(0), 374 m_RenderCaps(0), 375 m_DeviceClass(0) {} 376 377 CFX_RenderDevice::~CFX_RenderDevice() { 378 RestoreState(false); 379 #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ 380 Flush(true); 381 #endif 382 } 383 384 #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ 385 void CFX_RenderDevice::Flush(bool release) { 386 if (release) 387 m_pDeviceDriver.reset(); 388 else 389 m_pDeviceDriver->Flush(); 390 } 391 #endif 392 393 void CFX_RenderDevice::SetDeviceDriver( 394 std::unique_ptr<IFX_RenderDeviceDriver> pDriver) { 395 m_pDeviceDriver = std::move(pDriver); 396 InitDeviceInfo(); 397 } 398 399 void CFX_RenderDevice::InitDeviceInfo() { 400 m_Width = m_pDeviceDriver->GetDeviceCaps(FXDC_PIXEL_WIDTH); 401 m_Height = m_pDeviceDriver->GetDeviceCaps(FXDC_PIXEL_HEIGHT); 402 m_bpp = m_pDeviceDriver->GetDeviceCaps(FXDC_BITS_PIXEL); 403 m_RenderCaps = m_pDeviceDriver->GetDeviceCaps(FXDC_RENDER_CAPS); 404 m_DeviceClass = m_pDeviceDriver->GetDeviceCaps(FXDC_DEVICE_CLASS); 405 if (!m_pDeviceDriver->GetClipBox(&m_ClipBox)) { 406 m_ClipBox.left = 0; 407 m_ClipBox.top = 0; 408 m_ClipBox.right = m_Width; 409 m_ClipBox.bottom = m_Height; 410 } 411 } 412 413 void CFX_RenderDevice::SaveState() { 414 m_pDeviceDriver->SaveState(); 415 } 416 417 void CFX_RenderDevice::RestoreState(bool bKeepSaved) { 418 if (m_pDeviceDriver) { 419 m_pDeviceDriver->RestoreState(bKeepSaved); 420 UpdateClipBox(); 421 } 422 } 423 424 int CFX_RenderDevice::GetDeviceCaps(int caps_id) const { 425 return m_pDeviceDriver->GetDeviceCaps(caps_id); 426 } 427 428 CFX_Matrix CFX_RenderDevice::GetCTM() const { 429 return m_pDeviceDriver->GetCTM(); 430 } 431 432 RetainPtr<CFX_DIBitmap> CFX_RenderDevice::GetBitmap() const { 433 return m_pBitmap; 434 } 435 436 void CFX_RenderDevice::SetBitmap(const RetainPtr<CFX_DIBitmap>& pBitmap) { 437 m_pBitmap = pBitmap; 438 } 439 440 bool CFX_RenderDevice::CreateCompatibleBitmap( 441 const RetainPtr<CFX_DIBitmap>& pDIB, 442 int width, 443 int height) const { 444 if (m_RenderCaps & FXRC_CMYK_OUTPUT) { 445 return pDIB->Create( 446 width, height, 447 m_RenderCaps & FXRC_ALPHA_OUTPUT ? FXDIB_Cmyka : FXDIB_Cmyk); 448 } 449 if (m_RenderCaps & FXRC_BYTEMASK_OUTPUT) 450 return pDIB->Create(width, height, FXDIB_8bppMask); 451 #if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_ || defined _SKIA_SUPPORT_PATHS_ 452 return pDIB->Create( 453 width, height, 454 m_RenderCaps & FXRC_ALPHA_OUTPUT ? FXDIB_Argb : FXDIB_Rgb32); 455 #else 456 return pDIB->Create( 457 width, height, m_RenderCaps & FXRC_ALPHA_OUTPUT ? FXDIB_Argb : FXDIB_Rgb); 458 #endif 459 } 460 461 bool CFX_RenderDevice::SetClip_PathFill(const CFX_PathData* pPathData, 462 const CFX_Matrix* pObject2Device, 463 int fill_mode) { 464 if (!m_pDeviceDriver->SetClip_PathFill(pPathData, pObject2Device, 465 fill_mode)) { 466 return false; 467 } 468 UpdateClipBox(); 469 return true; 470 } 471 472 bool CFX_RenderDevice::SetClip_PathStroke( 473 const CFX_PathData* pPathData, 474 const CFX_Matrix* pObject2Device, 475 const CFX_GraphStateData* pGraphState) { 476 if (!m_pDeviceDriver->SetClip_PathStroke(pPathData, pObject2Device, 477 pGraphState)) { 478 return false; 479 } 480 UpdateClipBox(); 481 return true; 482 } 483 484 bool CFX_RenderDevice::SetClip_Rect(const CFX_RectF& rtClip) { 485 return SetClip_Rect(FX_RECT(static_cast<int32_t>(floor(rtClip.left)), 486 static_cast<int32_t>(floor(rtClip.top)), 487 static_cast<int32_t>(ceil(rtClip.right())), 488 static_cast<int32_t>(ceil(rtClip.bottom())))); 489 } 490 491 bool CFX_RenderDevice::SetClip_Rect(const FX_RECT& rect) { 492 CFX_PathData path; 493 path.AppendRect(rect.left, rect.bottom, rect.right, rect.top); 494 if (!SetClip_PathFill(&path, nullptr, FXFILL_WINDING)) 495 return false; 496 497 UpdateClipBox(); 498 return true; 499 } 500 501 void CFX_RenderDevice::UpdateClipBox() { 502 if (m_pDeviceDriver->GetClipBox(&m_ClipBox)) 503 return; 504 m_ClipBox.left = 0; 505 m_ClipBox.top = 0; 506 m_ClipBox.right = m_Width; 507 m_ClipBox.bottom = m_Height; 508 } 509 510 bool CFX_RenderDevice::DrawPathWithBlend(const CFX_PathData* pPathData, 511 const CFX_Matrix* pObject2Device, 512 const CFX_GraphStateData* pGraphState, 513 uint32_t fill_color, 514 uint32_t stroke_color, 515 int fill_mode, 516 int blend_type) { 517 uint8_t stroke_alpha = pGraphState ? FXARGB_A(stroke_color) : 0; 518 uint8_t fill_alpha = (fill_mode & 3) ? FXARGB_A(fill_color) : 0; 519 const std::vector<FX_PATHPOINT>& pPoints = pPathData->GetPoints(); 520 if (stroke_alpha == 0 && pPoints.size() == 2) { 521 CFX_PointF pos1 = pPoints[0].m_Point; 522 CFX_PointF pos2 = pPoints[1].m_Point; 523 if (pObject2Device) { 524 pos1 = pObject2Device->Transform(pos1); 525 pos2 = pObject2Device->Transform(pos2); 526 } 527 DrawCosmeticLine(pos1, pos2, fill_color, fill_mode, blend_type); 528 return true; 529 } 530 531 if ((pPoints.size() == 5 || pPoints.size() == 4) && stroke_alpha == 0) { 532 CFX_FloatRect rect_f; 533 if (!(fill_mode & FXFILL_RECT_AA) && 534 pPathData->IsRect(pObject2Device, &rect_f)) { 535 FX_RECT rect_i = rect_f.GetOuterRect(); 536 537 // Depending on the top/bottom, left/right values of the rect it's 538 // possible to overflow the Width() and Height() calculations. Check that 539 // the rect will have valid dimension before continuing. 540 if (!rect_i.Valid()) 541 return false; 542 543 int width = static_cast<int>(ceil(rect_f.right - rect_f.left)); 544 if (width < 1) { 545 width = 1; 546 if (rect_i.left == rect_i.right) 547 ++rect_i.right; 548 } 549 int height = static_cast<int>(ceil(rect_f.top - rect_f.bottom)); 550 if (height < 1) { 551 height = 1; 552 if (rect_i.bottom == rect_i.top) 553 ++rect_i.bottom; 554 } 555 if (rect_i.Width() >= width + 1) { 556 if (rect_f.left - static_cast<float>(rect_i.left) > 557 static_cast<float>(rect_i.right) - rect_f.right) { 558 ++rect_i.left; 559 } else { 560 --rect_i.right; 561 } 562 } 563 if (rect_i.Height() >= height + 1) { 564 if (rect_f.top - static_cast<float>(rect_i.top) > 565 static_cast<float>(rect_i.bottom) - rect_f.bottom) { 566 ++rect_i.top; 567 } else { 568 --rect_i.bottom; 569 } 570 } 571 if (FillRectWithBlend(&rect_i, fill_color, blend_type)) 572 return true; 573 } 574 } 575 if ((fill_mode & 3) && stroke_alpha == 0 && !(fill_mode & FX_FILL_STROKE) && 576 !(fill_mode & FX_FILL_TEXT_MODE)) { 577 CFX_PathData newPath; 578 bool bThin = false; 579 bool setIdentity = false; 580 if (pPathData->GetZeroAreaPath(pObject2Device, 581 !!m_pDeviceDriver->GetDriverType(), &newPath, 582 &bThin, &setIdentity)) { 583 CFX_GraphStateData graphState; 584 graphState.m_LineWidth = 0.0f; 585 586 uint32_t strokecolor = fill_color; 587 if (bThin) 588 strokecolor = (((fill_alpha >> 2) << 24) | (strokecolor & 0x00ffffff)); 589 590 const CFX_Matrix* pMatrix = nullptr; 591 if (pObject2Device && !pObject2Device->IsIdentity() && !setIdentity) 592 pMatrix = pObject2Device; 593 594 int smooth_path = FX_ZEROAREA_FILL; 595 if (fill_mode & FXFILL_NOPATHSMOOTH) 596 smooth_path |= FXFILL_NOPATHSMOOTH; 597 598 m_pDeviceDriver->DrawPath(&newPath, pMatrix, &graphState, 0, strokecolor, 599 smooth_path, blend_type); 600 } 601 } 602 if ((fill_mode & 3) && fill_alpha && stroke_alpha < 0xff && 603 (fill_mode & FX_FILL_STROKE)) { 604 if (m_RenderCaps & FXRC_FILLSTROKE_PATH) { 605 return m_pDeviceDriver->DrawPath(pPathData, pObject2Device, pGraphState, 606 fill_color, stroke_color, fill_mode, 607 blend_type); 608 } 609 return DrawFillStrokePath(pPathData, pObject2Device, pGraphState, 610 fill_color, stroke_color, fill_mode, blend_type); 611 } 612 return m_pDeviceDriver->DrawPath(pPathData, pObject2Device, pGraphState, 613 fill_color, stroke_color, fill_mode, 614 blend_type); 615 } 616 617 // This can be removed once PDFium entirely relies on Skia 618 bool CFX_RenderDevice::DrawFillStrokePath(const CFX_PathData* pPathData, 619 const CFX_Matrix* pObject2Device, 620 const CFX_GraphStateData* pGraphState, 621 uint32_t fill_color, 622 uint32_t stroke_color, 623 int fill_mode, 624 int blend_type) { 625 if (!(m_RenderCaps & FXRC_GET_BITS)) 626 return false; 627 CFX_FloatRect bbox; 628 if (pGraphState) { 629 bbox = pPathData->GetBoundingBox(pGraphState->m_LineWidth, 630 pGraphState->m_MiterLimit); 631 } else { 632 bbox = pPathData->GetBoundingBox(); 633 } 634 if (pObject2Device) 635 bbox = pObject2Device->TransformRect(bbox); 636 637 CFX_Matrix ctm = GetCTM(); 638 float fScaleX = fabs(ctm.a); 639 float fScaleY = fabs(ctm.d); 640 FX_RECT rect = bbox.GetOuterRect(); 641 auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); 642 auto Backdrop = pdfium::MakeRetain<CFX_DIBitmap>(); 643 if (!CreateCompatibleBitmap(bitmap, FXSYS_round(rect.Width() * fScaleX), 644 FXSYS_round(rect.Height() * fScaleY))) { 645 return false; 646 } 647 if (bitmap->HasAlpha()) { 648 bitmap->Clear(0); 649 Backdrop->Copy(bitmap); 650 } else { 651 if (!m_pDeviceDriver->GetDIBits(bitmap, rect.left, rect.top)) 652 return false; 653 Backdrop->Copy(bitmap); 654 } 655 CFX_DefaultRenderDevice bitmap_device; 656 bitmap_device.Attach(bitmap, false, Backdrop, true); 657 658 CFX_Matrix matrix; 659 if (pObject2Device) 660 matrix = *pObject2Device; 661 matrix.Translate(-rect.left, -rect.top); 662 matrix.Concat(CFX_Matrix(fScaleX, 0, 0, fScaleY, 0, 0)); 663 if (!bitmap_device.GetDeviceDriver()->DrawPath( 664 pPathData, &matrix, pGraphState, fill_color, stroke_color, fill_mode, 665 blend_type)) { 666 return false; 667 } 668 #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ 669 bitmap_device.GetDeviceDriver()->Flush(); 670 #endif 671 FX_RECT src_rect(0, 0, FXSYS_round(rect.Width() * fScaleX), 672 FXSYS_round(rect.Height() * fScaleY)); 673 return m_pDeviceDriver->SetDIBits(bitmap, 0, &src_rect, rect.left, rect.top, 674 FXDIB_BLEND_NORMAL); 675 } 676 677 bool CFX_RenderDevice::FillRectWithBlend(const FX_RECT* pRect, 678 uint32_t fill_color, 679 int blend_type) { 680 if (m_pDeviceDriver->FillRectWithBlend(pRect, fill_color, blend_type)) 681 return true; 682 683 if (!(m_RenderCaps & FXRC_GET_BITS)) 684 return false; 685 686 auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); 687 if (!CreateCompatibleBitmap(bitmap, pRect->Width(), pRect->Height())) 688 return false; 689 690 if (!m_pDeviceDriver->GetDIBits(bitmap, pRect->left, pRect->top)) 691 return false; 692 693 if (!bitmap->CompositeRect(0, 0, pRect->Width(), pRect->Height(), fill_color, 694 0)) { 695 return false; 696 } 697 FX_RECT src_rect(0, 0, pRect->Width(), pRect->Height()); 698 m_pDeviceDriver->SetDIBits(bitmap, 0, &src_rect, pRect->left, pRect->top, 699 FXDIB_BLEND_NORMAL); 700 return true; 701 } 702 703 bool CFX_RenderDevice::DrawCosmeticLine(const CFX_PointF& ptMoveTo, 704 const CFX_PointF& ptLineTo, 705 uint32_t color, 706 int fill_mode, 707 int blend_type) { 708 if ((color >= 0xff000000) && m_pDeviceDriver->DrawCosmeticLine( 709 ptMoveTo, ptLineTo, color, blend_type)) { 710 return true; 711 } 712 CFX_GraphStateData graph_state; 713 CFX_PathData path; 714 path.AppendPoint(ptMoveTo, FXPT_TYPE::MoveTo, false); 715 path.AppendPoint(ptLineTo, FXPT_TYPE::LineTo, false); 716 return m_pDeviceDriver->DrawPath(&path, nullptr, &graph_state, 0, color, 717 fill_mode, blend_type); 718 } 719 720 bool CFX_RenderDevice::GetDIBits(const RetainPtr<CFX_DIBitmap>& pBitmap, 721 int left, 722 int top) { 723 return (m_RenderCaps & FXRC_GET_BITS) && 724 m_pDeviceDriver->GetDIBits(pBitmap, left, top); 725 } 726 727 RetainPtr<CFX_DIBitmap> CFX_RenderDevice::GetBackDrop() { 728 return m_pDeviceDriver->GetBackDrop(); 729 } 730 731 bool CFX_RenderDevice::SetDIBitsWithBlend( 732 const RetainPtr<CFX_DIBSource>& pBitmap, 733 int left, 734 int top, 735 int blend_mode) { 736 ASSERT(!pBitmap->IsAlphaMask()); 737 CFX_Matrix ctm = GetCTM(); 738 float fScaleX = fabs(ctm.a); 739 float fScaleY = fabs(ctm.d); 740 FX_RECT dest_rect(left, top, 741 FXSYS_round(left + pBitmap->GetWidth() / fScaleX), 742 FXSYS_round(top + pBitmap->GetHeight() / fScaleY)); 743 dest_rect.Intersect(m_ClipBox); 744 if (dest_rect.IsEmpty()) 745 return true; 746 747 FX_RECT src_rect(dest_rect.left - left, dest_rect.top - top, 748 dest_rect.left - left + dest_rect.Width(), 749 dest_rect.top - top + dest_rect.Height()); 750 src_rect.left = FXSYS_round(src_rect.left * fScaleX); 751 src_rect.top = FXSYS_round(src_rect.top * fScaleY); 752 src_rect.right = FXSYS_round(src_rect.right * fScaleX); 753 src_rect.bottom = FXSYS_round(src_rect.bottom * fScaleY); 754 if ((blend_mode == FXDIB_BLEND_NORMAL || (m_RenderCaps & FXRC_BLEND_MODE)) && 755 (!pBitmap->HasAlpha() || (m_RenderCaps & FXRC_ALPHA_IMAGE))) { 756 return m_pDeviceDriver->SetDIBits(pBitmap, 0, &src_rect, dest_rect.left, 757 dest_rect.top, blend_mode); 758 } 759 if (!(m_RenderCaps & FXRC_GET_BITS)) 760 return false; 761 762 int bg_pixel_width = FXSYS_round(dest_rect.Width() * fScaleX); 763 int bg_pixel_height = FXSYS_round(dest_rect.Height() * fScaleY); 764 auto background = pdfium::MakeRetain<CFX_DIBitmap>(); 765 if (!background->Create( 766 bg_pixel_width, bg_pixel_height, 767 (m_RenderCaps & FXRC_CMYK_OUTPUT) ? FXDIB_Cmyk : FXDIB_Rgb32)) { 768 return false; 769 } 770 if (!m_pDeviceDriver->GetDIBits(background, dest_rect.left, dest_rect.top)) { 771 return false; 772 } 773 if (!background->CompositeBitmap(0, 0, bg_pixel_width, bg_pixel_height, 774 pBitmap, src_rect.left, src_rect.top, 775 blend_mode, nullptr, false)) { 776 return false; 777 } 778 FX_RECT rect(0, 0, bg_pixel_width, bg_pixel_height); 779 return m_pDeviceDriver->SetDIBits(background, 0, &rect, dest_rect.left, 780 dest_rect.top, FXDIB_BLEND_NORMAL); 781 } 782 783 bool CFX_RenderDevice::StretchDIBitsWithFlagsAndBlend( 784 const RetainPtr<CFX_DIBSource>& pBitmap, 785 int left, 786 int top, 787 int dest_width, 788 int dest_height, 789 uint32_t flags, 790 int blend_mode) { 791 FX_RECT dest_rect(left, top, left + dest_width, top + dest_height); 792 FX_RECT clip_box = m_ClipBox; 793 clip_box.Intersect(dest_rect); 794 return clip_box.IsEmpty() || m_pDeviceDriver->StretchDIBits( 795 pBitmap, 0, left, top, dest_width, 796 dest_height, &clip_box, flags, blend_mode); 797 } 798 799 bool CFX_RenderDevice::SetBitMask(const RetainPtr<CFX_DIBSource>& pBitmap, 800 int left, 801 int top, 802 uint32_t argb) { 803 FX_RECT src_rect(0, 0, pBitmap->GetWidth(), pBitmap->GetHeight()); 804 return m_pDeviceDriver->SetDIBits(pBitmap, argb, &src_rect, left, top, 805 FXDIB_BLEND_NORMAL); 806 } 807 808 bool CFX_RenderDevice::StretchBitMask(const RetainPtr<CFX_DIBSource>& pBitmap, 809 int left, 810 int top, 811 int dest_width, 812 int dest_height, 813 uint32_t color) { 814 return StretchBitMaskWithFlags(pBitmap, left, top, dest_width, dest_height, 815 color, 0); 816 } 817 818 bool CFX_RenderDevice::StretchBitMaskWithFlags( 819 const RetainPtr<CFX_DIBSource>& pBitmap, 820 int left, 821 int top, 822 int dest_width, 823 int dest_height, 824 uint32_t argb, 825 uint32_t flags) { 826 FX_RECT dest_rect(left, top, left + dest_width, top + dest_height); 827 FX_RECT clip_box = m_ClipBox; 828 clip_box.Intersect(dest_rect); 829 return m_pDeviceDriver->StretchDIBits(pBitmap, argb, left, top, dest_width, 830 dest_height, &clip_box, flags, 831 FXDIB_BLEND_NORMAL); 832 } 833 834 bool CFX_RenderDevice::StartDIBitsWithBlend( 835 const RetainPtr<CFX_DIBSource>& pBitmap, 836 int bitmap_alpha, 837 uint32_t argb, 838 const CFX_Matrix* pMatrix, 839 uint32_t flags, 840 std::unique_ptr<CFX_ImageRenderer>* handle, 841 int blend_mode) { 842 return m_pDeviceDriver->StartDIBits(pBitmap, bitmap_alpha, argb, pMatrix, 843 flags, handle, blend_mode); 844 } 845 846 bool CFX_RenderDevice::ContinueDIBits(CFX_ImageRenderer* handle, 847 IFX_PauseIndicator* pPause) { 848 return m_pDeviceDriver->ContinueDIBits(handle, pPause); 849 } 850 851 #ifdef _SKIA_SUPPORT_ 852 void CFX_RenderDevice::DebugVerifyBitmapIsPreMultiplied() const { 853 SkASSERT(0); 854 } 855 856 bool CFX_RenderDevice::SetBitsWithMask(const RetainPtr<CFX_DIBSource>& pBitmap, 857 const RetainPtr<CFX_DIBSource>& pMask, 858 int left, 859 int top, 860 int bitmap_alpha, 861 int blend_type) { 862 return m_pDeviceDriver->SetBitsWithMask(pBitmap, pMask, left, top, 863 bitmap_alpha, blend_type); 864 } 865 #endif 866 867 bool CFX_RenderDevice::DrawNormalText(int nChars, 868 const FXTEXT_CHARPOS* pCharPos, 869 CFX_Font* pFont, 870 float font_size, 871 const CFX_Matrix* pText2Device, 872 uint32_t fill_color, 873 uint32_t text_flags) { 874 int nativetext_flags = text_flags; 875 if (m_DeviceClass != FXDC_DISPLAY) { 876 if (!(text_flags & FXTEXT_PRINTGRAPHICTEXT)) { 877 if (ShouldDrawDeviceText(pFont, text_flags) && 878 m_pDeviceDriver->DrawDeviceText(nChars, pCharPos, pFont, pText2Device, 879 font_size, fill_color)) { 880 return true; 881 } 882 } 883 if (FXARGB_A(fill_color) < 255) 884 return false; 885 } else if (!(text_flags & FXTEXT_NO_NATIVETEXT)) { 886 if (ShouldDrawDeviceText(pFont, text_flags) && 887 m_pDeviceDriver->DrawDeviceText(nChars, pCharPos, pFont, pText2Device, 888 font_size, fill_color)) { 889 return true; 890 } 891 } 892 CFX_Matrix char2device; 893 CFX_Matrix text2Device; 894 if (pText2Device) { 895 char2device = *pText2Device; 896 text2Device = *pText2Device; 897 } 898 899 char2device.Scale(font_size, -font_size); 900 if (fabs(char2device.a) + fabs(char2device.b) > 50 * 1.0f || 901 ((m_DeviceClass == FXDC_PRINTER) && 902 !(text_flags & FXTEXT_PRINTIMAGETEXT))) { 903 if (pFont->GetFace()) { 904 int nPathFlags = 905 (text_flags & FXTEXT_NOSMOOTH) == 0 ? 0 : FXFILL_NOPATHSMOOTH; 906 return DrawTextPath(nChars, pCharPos, pFont, font_size, pText2Device, 907 nullptr, nullptr, fill_color, 0, nullptr, nPathFlags); 908 } 909 } 910 int anti_alias = FXFT_RENDER_MODE_MONO; 911 bool bNormal = false; 912 if ((text_flags & FXTEXT_NOSMOOTH) == 0) { 913 if (m_DeviceClass == FXDC_DISPLAY && m_bpp > 1) { 914 if (!CFX_GEModule::Get()->GetFontMgr()->FTLibrarySupportsHinting()) { 915 // Some Freetype implementations (like the one packaged with Fedora) do 916 // not support hinting due to patents 6219025, 6239783, 6307566, 917 // 6225973, 6243070, 6393145, 6421054, 6282327, and 6624828; the latest 918 // one expires 10/7/19. This makes LCD antialiasing very ugly, so we 919 // instead fall back on NORMAL antialiasing. 920 anti_alias = FXFT_RENDER_MODE_NORMAL; 921 } else if ((m_RenderCaps & (FXRC_ALPHA_OUTPUT | FXRC_CMYK_OUTPUT))) { 922 anti_alias = FXFT_RENDER_MODE_LCD; 923 bNormal = true; 924 } else if (m_bpp < 16) { 925 anti_alias = FXFT_RENDER_MODE_NORMAL; 926 } else { 927 anti_alias = FXFT_RENDER_MODE_LCD; 928 929 bool bClearType = false; 930 if (pFont->GetFace()) 931 bClearType = !!(text_flags & FXTEXT_CLEARTYPE); 932 bNormal = !bClearType; 933 } 934 } 935 } 936 std::vector<FXTEXT_GLYPHPOS> glyphs(nChars); 937 CFX_Matrix matrixCTM = GetCTM(); 938 float scale_x = fabs(matrixCTM.a); 939 float scale_y = fabs(matrixCTM.d); 940 CFX_Matrix deviceCtm = char2device; 941 CFX_Matrix m(scale_x, 0, 0, scale_y, 0, 0); 942 deviceCtm.Concat(m); 943 text2Device.Concat(m); 944 945 for (size_t i = 0; i < glyphs.size(); ++i) { 946 FXTEXT_GLYPHPOS& glyph = glyphs[i]; 947 const FXTEXT_CHARPOS& charpos = pCharPos[i]; 948 949 glyph.m_fOrigin = text2Device.Transform(charpos.m_Origin); 950 if (anti_alias < FXFT_RENDER_MODE_LCD) 951 glyph.m_Origin.x = FXSYS_round(glyph.m_fOrigin.x); 952 else 953 glyph.m_Origin.x = static_cast<int>(floor(glyph.m_fOrigin.x)); 954 glyph.m_Origin.y = FXSYS_round(glyph.m_fOrigin.y); 955 956 if (charpos.m_bGlyphAdjust) { 957 CFX_Matrix new_matrix( 958 charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1], 959 charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0); 960 new_matrix.Concat(deviceCtm); 961 glyph.m_pGlyph = pFont->LoadGlyphBitmap( 962 charpos.m_GlyphIndex, charpos.m_bFontStyle, &new_matrix, 963 charpos.m_FontCharWidth, anti_alias, nativetext_flags); 964 } else { 965 glyph.m_pGlyph = pFont->LoadGlyphBitmap( 966 charpos.m_GlyphIndex, charpos.m_bFontStyle, &deviceCtm, 967 charpos.m_FontCharWidth, anti_alias, nativetext_flags); 968 } 969 } 970 if (anti_alias < FXFT_RENDER_MODE_LCD && glyphs.size() > 1) 971 AdjustGlyphSpace(&glyphs); 972 973 FX_RECT bmp_rect1 = FXGE_GetGlyphsBBox(glyphs, anti_alias, 1.0f, 1.0f); 974 if (scale_x > 1 && scale_y > 1) { 975 --bmp_rect1.left; 976 --bmp_rect1.top; 977 ++bmp_rect1.right; 978 ++bmp_rect1.bottom; 979 } 980 FX_RECT bmp_rect(FXSYS_round((float)(bmp_rect1.left) / scale_x), 981 FXSYS_round((float)(bmp_rect1.top) / scale_y), 982 FXSYS_round((float)bmp_rect1.right / scale_x), 983 FXSYS_round((float)bmp_rect1.bottom / scale_y)); 984 bmp_rect.Intersect(m_ClipBox); 985 if (bmp_rect.IsEmpty()) 986 return true; 987 988 int pixel_width = FXSYS_round(bmp_rect.Width() * scale_x); 989 int pixel_height = FXSYS_round(bmp_rect.Height() * scale_y); 990 int pixel_left = FXSYS_round(bmp_rect.left * scale_x); 991 int pixel_top = FXSYS_round(bmp_rect.top * scale_y); 992 if (anti_alias == FXFT_RENDER_MODE_MONO) { 993 auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); 994 if (!bitmap->Create(pixel_width, pixel_height, FXDIB_1bppMask)) 995 return false; 996 bitmap->Clear(0); 997 for (const FXTEXT_GLYPHPOS& glyph : glyphs) { 998 if (!glyph.m_pGlyph) 999 continue; 1000 RetainPtr<CFX_DIBitmap> pGlyph = glyph.m_pGlyph->m_pBitmap; 1001 bitmap->TransferBitmap( 1002 glyph.m_Origin.x + glyph.m_pGlyph->m_Left - pixel_left, 1003 glyph.m_Origin.y - glyph.m_pGlyph->m_Top - pixel_top, 1004 pGlyph->GetWidth(), pGlyph->GetHeight(), pGlyph, 0, 0); 1005 } 1006 return SetBitMask(bitmap, bmp_rect.left, bmp_rect.top, fill_color); 1007 } 1008 auto bitmap = pdfium::MakeRetain<CFX_DIBitmap>(); 1009 if (m_bpp == 8) { 1010 if (!bitmap->Create(pixel_width, pixel_height, FXDIB_8bppMask)) 1011 return false; 1012 } else { 1013 if (!CreateCompatibleBitmap(bitmap, pixel_width, pixel_height)) 1014 return false; 1015 } 1016 if (!bitmap->HasAlpha() && !bitmap->IsAlphaMask()) { 1017 bitmap->Clear(0xFFFFFFFF); 1018 if (!GetDIBits(bitmap, bmp_rect.left, bmp_rect.top)) 1019 return false; 1020 } else { 1021 bitmap->Clear(0); 1022 if (bitmap->m_pAlphaMask) 1023 bitmap->m_pAlphaMask->Clear(0); 1024 } 1025 int dest_width = pixel_width; 1026 int a = 0; 1027 int r = 0; 1028 int g = 0; 1029 int b = 0; 1030 if (anti_alias == FXFT_RENDER_MODE_LCD) 1031 std::tie(a, r, g, b) = ArgbDecode(fill_color); 1032 1033 for (const FXTEXT_GLYPHPOS& glyph : glyphs) { 1034 if (!glyph.m_pGlyph) 1035 continue; 1036 1037 pdfium::base::CheckedNumeric<int> left = glyph.m_Origin.x; 1038 left += glyph.m_pGlyph->m_Left; 1039 left -= pixel_left; 1040 if (!left.IsValid()) 1041 return false; 1042 1043 pdfium::base::CheckedNumeric<int> top = glyph.m_Origin.y; 1044 top -= glyph.m_pGlyph->m_Top; 1045 top -= pixel_top; 1046 if (!top.IsValid()) 1047 return false; 1048 1049 RetainPtr<CFX_DIBitmap> pGlyph = glyph.m_pGlyph->m_pBitmap; 1050 int ncols = pGlyph->GetWidth(); 1051 int nrows = pGlyph->GetHeight(); 1052 if (anti_alias == FXFT_RENDER_MODE_NORMAL) { 1053 if (!bitmap->CompositeMask(left.ValueOrDie(), top.ValueOrDie(), ncols, 1054 nrows, pGlyph, fill_color, 0, 0, 1055 FXDIB_BLEND_NORMAL, nullptr, false, 0)) { 1056 return false; 1057 } 1058 continue; 1059 } 1060 bool bBGRStripe = !!(text_flags & FXTEXT_BGR_STRIPE); 1061 ncols /= 3; 1062 int x_subpixel = static_cast<int>(glyph.m_fOrigin.x * 3) % 3; 1063 int start_col = 1064 pdfium::base::ValueOrDieForType<int>(pdfium::base::CheckMax(left, 0)); 1065 pdfium::base::CheckedNumeric<int> end_col_safe = left; 1066 end_col_safe += ncols; 1067 if (!end_col_safe.IsValid()) 1068 return false; 1069 1070 int end_col = 1071 std::min(static_cast<int>(end_col_safe.ValueOrDie<int>()), dest_width); 1072 if (start_col >= end_col) 1073 continue; 1074 1075 DrawNormalTextHelper(bitmap, pGlyph, nrows, left.ValueOrDie(), 1076 top.ValueOrDie(), start_col, end_col, bNormal, 1077 bBGRStripe, x_subpixel, a, r, g, b); 1078 } 1079 if (bitmap->IsAlphaMask()) 1080 SetBitMask(bitmap, bmp_rect.left, bmp_rect.top, fill_color); 1081 else 1082 SetDIBits(bitmap, bmp_rect.left, bmp_rect.top); 1083 return true; 1084 } 1085 1086 bool CFX_RenderDevice::DrawTextPath(int nChars, 1087 const FXTEXT_CHARPOS* pCharPos, 1088 CFX_Font* pFont, 1089 float font_size, 1090 const CFX_Matrix* pText2User, 1091 const CFX_Matrix* pUser2Device, 1092 const CFX_GraphStateData* pGraphState, 1093 uint32_t fill_color, 1094 FX_ARGB stroke_color, 1095 CFX_PathData* pClippingPath, 1096 int nFlag) { 1097 for (int iChar = 0; iChar < nChars; ++iChar) { 1098 const FXTEXT_CHARPOS& charpos = pCharPos[iChar]; 1099 CFX_Matrix matrix; 1100 if (charpos.m_bGlyphAdjust) { 1101 matrix = CFX_Matrix(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1], 1102 charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 1103 0, 0); 1104 } 1105 matrix.Concat(CFX_Matrix(font_size, 0, 0, font_size, charpos.m_Origin.x, 1106 charpos.m_Origin.y)); 1107 const CFX_PathData* pPath = 1108 pFont->LoadGlyphPath(charpos.m_GlyphIndex, charpos.m_FontCharWidth); 1109 if (!pPath) 1110 continue; 1111 1112 matrix.Concat(*pText2User); 1113 1114 CFX_PathData TransformedPath(*pPath); 1115 TransformedPath.Transform(&matrix); 1116 if (fill_color || stroke_color) { 1117 int fill_mode = nFlag; 1118 if (fill_color) 1119 fill_mode |= FXFILL_WINDING; 1120 fill_mode |= FX_FILL_TEXT_MODE; 1121 if (!DrawPathWithBlend(&TransformedPath, pUser2Device, pGraphState, 1122 fill_color, stroke_color, fill_mode, 1123 FXDIB_BLEND_NORMAL)) { 1124 return false; 1125 } 1126 } 1127 if (pClippingPath) 1128 pClippingPath->Append(&TransformedPath, pUser2Device); 1129 } 1130 return true; 1131 } 1132 1133 void CFX_RenderDevice::DrawFillRect(const CFX_Matrix* pUser2Device, 1134 const CFX_FloatRect& rect, 1135 const FX_COLORREF& color) { 1136 CFX_PathData path; 1137 CFX_FloatRect rcTemp(rect); 1138 path.AppendRect(rcTemp.left, rcTemp.bottom, rcTemp.right, rcTemp.top); 1139 DrawPath(&path, pUser2Device, nullptr, color, 0, FXFILL_WINDING); 1140 } 1141 1142 void CFX_RenderDevice::DrawFillArea(const CFX_Matrix* pUser2Device, 1143 const CFX_PointF* pPts, 1144 int32_t nCount, 1145 const FX_COLORREF& color) { 1146 CFX_PathData path; 1147 path.AppendPoint(pPts[0], FXPT_TYPE::MoveTo, false); 1148 for (int32_t i = 1; i < nCount; i++) 1149 path.AppendPoint(pPts[i], FXPT_TYPE::LineTo, false); 1150 1151 DrawPath(&path, pUser2Device, nullptr, color, 0, FXFILL_ALTERNATE); 1152 } 1153 1154 void CFX_RenderDevice::DrawStrokeRect(const CFX_Matrix* pUser2Device, 1155 const CFX_FloatRect& rect, 1156 const FX_COLORREF& color, 1157 float fWidth) { 1158 CFX_PathData path; 1159 CFX_FloatRect rcTemp(rect); 1160 path.AppendRect(rcTemp.left, rcTemp.bottom, rcTemp.right, rcTemp.top); 1161 1162 CFX_GraphStateData gsd; 1163 gsd.m_LineWidth = fWidth; 1164 1165 DrawPath(&path, pUser2Device, &gsd, 0, color, FXFILL_ALTERNATE); 1166 } 1167 1168 void CFX_RenderDevice::DrawStrokeLine(const CFX_Matrix* pUser2Device, 1169 const CFX_PointF& ptMoveTo, 1170 const CFX_PointF& ptLineTo, 1171 const FX_COLORREF& color, 1172 float fWidth) { 1173 CFX_PathData path; 1174 path.AppendPoint(ptMoveTo, FXPT_TYPE::MoveTo, false); 1175 path.AppendPoint(ptLineTo, FXPT_TYPE::LineTo, false); 1176 1177 CFX_GraphStateData gsd; 1178 gsd.m_LineWidth = fWidth; 1179 1180 DrawPath(&path, pUser2Device, &gsd, 0, color, FXFILL_ALTERNATE); 1181 } 1182 1183 void CFX_RenderDevice::DrawFillRect(const CFX_Matrix* pUser2Device, 1184 const CFX_FloatRect& rect, 1185 const CFX_Color& color, 1186 int32_t nTransparency) { 1187 DrawFillRect(pUser2Device, rect, color.ToFXColor(nTransparency)); 1188 } 1189 1190 void CFX_RenderDevice::DrawShadow(const CFX_Matrix* pUser2Device, 1191 bool bVertical, 1192 bool bHorizontal, 1193 CFX_FloatRect rect, 1194 int32_t nTransparency, 1195 int32_t nStartGray, 1196 int32_t nEndGray) { 1197 float fStepGray = 1.0f; 1198 1199 if (bVertical) { 1200 fStepGray = (nEndGray - nStartGray) / rect.Height(); 1201 1202 for (float fy = rect.bottom + 0.5f; fy <= rect.top - 0.5f; fy += 1.0f) { 1203 int32_t nGray = nStartGray + (int32_t)(fStepGray * (fy - rect.bottom)); 1204 DrawStrokeLine(pUser2Device, CFX_PointF(rect.left, fy), 1205 CFX_PointF(rect.right, fy), 1206 ArgbEncode(nTransparency, nGray, nGray, nGray), 1.5f); 1207 } 1208 } 1209 1210 if (bHorizontal) { 1211 fStepGray = (nEndGray - nStartGray) / rect.Width(); 1212 1213 for (float fx = rect.left + 0.5f; fx <= rect.right - 0.5f; fx += 1.0f) { 1214 int32_t nGray = nStartGray + (int32_t)(fStepGray * (fx - rect.left)); 1215 DrawStrokeLine(pUser2Device, CFX_PointF(fx, rect.bottom), 1216 CFX_PointF(fx, rect.top), 1217 ArgbEncode(nTransparency, nGray, nGray, nGray), 1.5f); 1218 } 1219 } 1220 } 1221 1222 void CFX_RenderDevice::DrawBorder(const CFX_Matrix* pUser2Device, 1223 const CFX_FloatRect& rect, 1224 float fWidth, 1225 const CFX_Color& color, 1226 const CFX_Color& crLeftTop, 1227 const CFX_Color& crRightBottom, 1228 BorderStyle nStyle, 1229 int32_t nTransparency) { 1230 float fLeft = rect.left; 1231 float fRight = rect.right; 1232 float fTop = rect.top; 1233 float fBottom = rect.bottom; 1234 1235 if (fWidth > 0.0f) { 1236 float fHalfWidth = fWidth / 2.0f; 1237 1238 switch (nStyle) { 1239 default: 1240 case BorderStyle::SOLID: { 1241 CFX_PathData path; 1242 path.AppendRect(fLeft, fBottom, fRight, fTop); 1243 path.AppendRect(fLeft + fWidth, fBottom + fWidth, fRight - fWidth, 1244 fTop - fWidth); 1245 DrawPath(&path, pUser2Device, nullptr, color.ToFXColor(nTransparency), 1246 0, FXFILL_ALTERNATE); 1247 break; 1248 } 1249 case BorderStyle::DASH: { 1250 CFX_PathData path; 1251 path.AppendPoint( 1252 CFX_PointF(fLeft + fWidth / 2.0f, fBottom + fWidth / 2.0f), 1253 FXPT_TYPE::MoveTo, false); 1254 path.AppendPoint( 1255 CFX_PointF(fLeft + fWidth / 2.0f, fTop - fWidth / 2.0f), 1256 FXPT_TYPE::LineTo, false); 1257 path.AppendPoint( 1258 CFX_PointF(fRight - fWidth / 2.0f, fTop - fWidth / 2.0f), 1259 FXPT_TYPE::LineTo, false); 1260 path.AppendPoint( 1261 CFX_PointF(fRight - fWidth / 2.0f, fBottom + fWidth / 2.0f), 1262 FXPT_TYPE::LineTo, false); 1263 path.AppendPoint( 1264 CFX_PointF(fLeft + fWidth / 2.0f, fBottom + fWidth / 2.0f), 1265 FXPT_TYPE::LineTo, false); 1266 1267 CFX_GraphStateData gsd; 1268 gsd.SetDashCount(2); 1269 gsd.m_DashArray[0] = 3.0f; 1270 gsd.m_DashArray[1] = 3.0f; 1271 gsd.m_DashPhase = 0; 1272 1273 gsd.m_LineWidth = fWidth; 1274 DrawPath(&path, pUser2Device, &gsd, 0, color.ToFXColor(nTransparency), 1275 FXFILL_WINDING); 1276 break; 1277 } 1278 case BorderStyle::BEVELED: 1279 case BorderStyle::INSET: { 1280 CFX_GraphStateData gsd; 1281 gsd.m_LineWidth = fHalfWidth; 1282 1283 CFX_PathData pathLT; 1284 1285 pathLT.AppendPoint(CFX_PointF(fLeft + fHalfWidth, fBottom + fHalfWidth), 1286 FXPT_TYPE::MoveTo, false); 1287 pathLT.AppendPoint(CFX_PointF(fLeft + fHalfWidth, fTop - fHalfWidth), 1288 FXPT_TYPE::LineTo, false); 1289 pathLT.AppendPoint(CFX_PointF(fRight - fHalfWidth, fTop - fHalfWidth), 1290 FXPT_TYPE::LineTo, false); 1291 pathLT.AppendPoint( 1292 CFX_PointF(fRight - fHalfWidth * 2, fTop - fHalfWidth * 2), 1293 FXPT_TYPE::LineTo, false); 1294 pathLT.AppendPoint( 1295 CFX_PointF(fLeft + fHalfWidth * 2, fTop - fHalfWidth * 2), 1296 FXPT_TYPE::LineTo, false); 1297 pathLT.AppendPoint( 1298 CFX_PointF(fLeft + fHalfWidth * 2, fBottom + fHalfWidth * 2), 1299 FXPT_TYPE::LineTo, false); 1300 pathLT.AppendPoint(CFX_PointF(fLeft + fHalfWidth, fBottom + fHalfWidth), 1301 FXPT_TYPE::LineTo, false); 1302 1303 DrawPath(&pathLT, pUser2Device, &gsd, 1304 crLeftTop.ToFXColor(nTransparency), 0, FXFILL_ALTERNATE); 1305 1306 CFX_PathData pathRB; 1307 pathRB.AppendPoint(CFX_PointF(fRight - fHalfWidth, fTop - fHalfWidth), 1308 FXPT_TYPE::MoveTo, false); 1309 pathRB.AppendPoint( 1310 CFX_PointF(fRight - fHalfWidth, fBottom + fHalfWidth), 1311 FXPT_TYPE::LineTo, false); 1312 pathRB.AppendPoint(CFX_PointF(fLeft + fHalfWidth, fBottom + fHalfWidth), 1313 FXPT_TYPE::LineTo, false); 1314 pathRB.AppendPoint( 1315 CFX_PointF(fLeft + fHalfWidth * 2, fBottom + fHalfWidth * 2), 1316 FXPT_TYPE::LineTo, false); 1317 pathRB.AppendPoint( 1318 CFX_PointF(fRight - fHalfWidth * 2, fBottom + fHalfWidth * 2), 1319 FXPT_TYPE::LineTo, false); 1320 pathRB.AppendPoint( 1321 CFX_PointF(fRight - fHalfWidth * 2, fTop - fHalfWidth * 2), 1322 FXPT_TYPE::LineTo, false); 1323 pathRB.AppendPoint(CFX_PointF(fRight - fHalfWidth, fTop - fHalfWidth), 1324 FXPT_TYPE::LineTo, false); 1325 1326 DrawPath(&pathRB, pUser2Device, &gsd, 1327 crRightBottom.ToFXColor(nTransparency), 0, FXFILL_ALTERNATE); 1328 1329 CFX_PathData path; 1330 1331 path.AppendRect(fLeft, fBottom, fRight, fTop); 1332 path.AppendRect(fLeft + fHalfWidth, fBottom + fHalfWidth, 1333 fRight - fHalfWidth, fTop - fHalfWidth); 1334 1335 DrawPath(&path, pUser2Device, &gsd, color.ToFXColor(nTransparency), 0, 1336 FXFILL_ALTERNATE); 1337 break; 1338 } 1339 case BorderStyle::UNDERLINE: { 1340 CFX_PathData path; 1341 path.AppendPoint(CFX_PointF(fLeft, fBottom + fWidth / 2), 1342 FXPT_TYPE::MoveTo, false); 1343 path.AppendPoint(CFX_PointF(fRight, fBottom + fWidth / 2), 1344 FXPT_TYPE::LineTo, false); 1345 1346 CFX_GraphStateData gsd; 1347 gsd.m_LineWidth = fWidth; 1348 1349 DrawPath(&path, pUser2Device, &gsd, 0, color.ToFXColor(nTransparency), 1350 FXFILL_ALTERNATE); 1351 break; 1352 } 1353 } 1354 } 1355 } 1356 1357 CFX_RenderDevice::StateRestorer::StateRestorer(CFX_RenderDevice* pDevice) 1358 : m_pDevice(pDevice) { 1359 m_pDevice->SaveState(); 1360 } 1361 1362 CFX_RenderDevice::StateRestorer::~StateRestorer() { 1363 m_pDevice->RestoreState(false); 1364 } 1365
