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Side by Side Diff: src/ports/SkScalerContext_win_dw.cpp

Issue 515533005: win dw: Fallback to aliased if ClearType 'succeeds' but returns empty (Closed) Base URL: https://chromium.googlesource.com/skia.git@master
Patch Set: Created 6 years, 3 months ago
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1 /* 1 /*
2 * Copyright 2011 Google Inc. 2 * Copyright 2011 Google Inc.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file. 5 * found in the LICENSE file.
6 */ 6 */
7 7
8 #include "SkTypes.h" 8 #include "SkTypes.h"
9 #undef GetGlyphIndices 9 #undef GetGlyphIndices
10 10
(...skipping 381 matching lines...) Expand 10 before | Expand all | Expand 10 after
392 fG_inv.mapVectors(vecs, SK_ARRAY_COUNT(vecs)); 392 fG_inv.mapVectors(vecs, SK_ARRAY_COUNT(vecs));
393 } else { 393 } else {
394 fSkXform.mapVectors(vecs, SK_ARRAY_COUNT(vecs)); 394 fSkXform.mapVectors(vecs, SK_ARRAY_COUNT(vecs));
395 } 395 }
396 396
397 glyph->fAdvanceX = SkScalarToFixed(vecs[0].fX); 397 glyph->fAdvanceX = SkScalarToFixed(vecs[0].fX);
398 glyph->fAdvanceY = SkScalarToFixed(vecs[0].fY); 398 glyph->fAdvanceY = SkScalarToFixed(vecs[0].fY);
399 } 399 }
400 400
401 void SkScalerContext_DW::generateMetrics(SkGlyph* glyph) { 401 void SkScalerContext_DW::generateMetrics(SkGlyph* glyph) {
402 try_again:
402 glyph->fWidth = 0; 403 glyph->fWidth = 0;
403 404
404 this->generateAdvance(glyph); 405 this->generateAdvance(glyph);
405 406
406 //Measure raster size. 407 //Measure raster size.
407 fXform.dx = SkFixedToFloat(glyph->getSubXFixed()); 408 fXform.dx = SkFixedToFloat(glyph->getSubXFixed());
408 fXform.dy = SkFixedToFloat(glyph->getSubYFixed()); 409 fXform.dy = SkFixedToFloat(glyph->getSubYFixed());
409 410
410 FLOAT advance = 0; 411 FLOAT advance = 0;
411 412
(...skipping 21 matching lines...) Expand all
433 fRenderingMode, 434 fRenderingMode,
434 fMeasuringMode, 435 fMeasuringMode,
435 0.0f, // baselineOriginX, 436 0.0f, // baselineOriginX,
436 0.0f, // baselineOriginY, 437 0.0f, // baselineOriginY,
437 &glyphRunAnalysis), 438 &glyphRunAnalysis),
438 "Could not create glyph run analysis."); 439 "Could not create glyph run analysis.");
439 440
440 RECT bbox; 441 RECT bbox;
441 HRVM(glyphRunAnalysis->GetAlphaTextureBounds(fTextureType, &bbox), 442 HRVM(glyphRunAnalysis->GetAlphaTextureBounds(fTextureType, &bbox),
442 "Could not get texture bounds."); 443 "Could not get texture bounds.");
444 if (bbox.right == 0 && bbox.left == 0 && bbox.top == 0 && bbox.bottom == 0 & &
445 fTextureType == DWRITE_TEXTURE_CLEARTYPE_3x1) {
446 fTextureType = DWRITE_TEXTURE_ALIASED_1x1;
447 fRenderingMode = DWRITE_RENDERING_MODE_ALIASED;
448 goto try_again;
449 }
443 450
444 glyph->fWidth = SkToU16(bbox.right - bbox.left); 451 glyph->fWidth = SkToU16(bbox.right - bbox.left);
445 glyph->fHeight = SkToU16(bbox.bottom - bbox.top); 452 glyph->fHeight = SkToU16(bbox.bottom - bbox.top);
446 glyph->fLeft = SkToS16(bbox.left); 453 glyph->fLeft = SkToS16(bbox.left);
447 glyph->fTop = SkToS16(bbox.top); 454 glyph->fTop = SkToS16(bbox.top);
448 } 455 }
449 456
450 void SkScalerContext_DW::generateFontMetrics(SkPaint::FontMetrics* metrics) { 457 void SkScalerContext_DW::generateFontMetrics(SkPaint::FontMetrics* metrics) {
451 if (NULL == metrics) { 458 if (NULL == metrics) {
452 return; 459 return;
(...skipping 259 matching lines...) Expand 10 before | Expand all | Expand 10 after
712 NULL, //advances 719 NULL, //advances
713 NULL, //offsets 720 NULL, //offsets
714 1, //num glyphs 721 1, //num glyphs
715 FALSE, //sideways 722 FALSE, //sideways
716 FALSE, //rtl 723 FALSE, //rtl
717 geometryToPath.get()), 724 geometryToPath.get()),
718 "Could not create glyph outline."); 725 "Could not create glyph outline.");
719 726
720 path->transform(fSkXform); 727 path->transform(fSkXform);
721 } 728 }
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