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| 1 /* | 1 /* |
| 2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 "GrBitmapTextContext.h" | 8 #include "GrBitmapTextContext.h" |
| 9 #include "GrAtlas.h" | 9 #include "GrAtlas.h" |
| 10 #include "GrDefaultGeoProcFactory.h" | 10 #include "GrDefaultGeoProcFactory.h" |
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| 63 | 63 |
| 64 GrBitmapTextContext* GrBitmapTextContext::Create(GrContext* context, | 64 GrBitmapTextContext* GrBitmapTextContext::Create(GrContext* context, |
| 65 const SkDeviceProperties& props
) { | 65 const SkDeviceProperties& props
) { |
| 66 return SkNEW_ARGS(GrBitmapTextContext, (context, props)); | 66 return SkNEW_ARGS(GrBitmapTextContext, (context, props)); |
| 67 } | 67 } |
| 68 | 68 |
| 69 bool GrBitmapTextContext::canDraw(const SkPaint& paint, const SkMatrix& viewMatr
ix) { | 69 bool GrBitmapTextContext::canDraw(const SkPaint& paint, const SkMatrix& viewMatr
ix) { |
| 70 return !SkDraw::ShouldDrawTextAsPaths(paint, viewMatrix); | 70 return !SkDraw::ShouldDrawTextAsPaths(paint, viewMatrix); |
| 71 } | 71 } |
| 72 | 72 |
| 73 inline void GrBitmapTextContext::init(const GrPaint& paint, const SkPaint& skPai
nt) { | 73 inline void GrBitmapTextContext::init(GrRenderTarget* rt, const GrPaint& paint, |
| 74 GrTextContext::init(paint, skPaint); | 74 const SkPaint& skPaint) { |
| 75 GrTextContext::init(rt, paint, skPaint); |
| 75 | 76 |
| 76 fStrike = NULL; | 77 fStrike = NULL; |
| 77 | 78 |
| 78 fCurrTexture = NULL; | 79 fCurrTexture = NULL; |
| 79 fCurrVertex = 0; | 80 fCurrVertex = 0; |
| 80 | 81 |
| 81 fVertices = NULL; | 82 fVertices = NULL; |
| 82 fAllocVertexCount = 0; | 83 fAllocVertexCount = 0; |
| 83 fTotalVertexCount = 0; | 84 fTotalVertexCount = 0; |
| 84 } | 85 } |
| 85 | 86 |
| 86 void GrBitmapTextContext::onDrawText(const GrPaint& paint, const SkPaint& skPain
t, | 87 void GrBitmapTextContext::onDrawText(GrRenderTarget* rt, const GrPaint& paint, |
| 88 const SkPaint& skPaint, |
| 87 const SkMatrix& viewMatrix, | 89 const SkMatrix& viewMatrix, |
| 88 const char text[], size_t byteLength, | 90 const char text[], size_t byteLength, |
| 89 SkScalar x, SkScalar y) { | 91 SkScalar x, SkScalar y) { |
| 90 SkASSERT(byteLength == 0 || text != NULL); | 92 SkASSERT(byteLength == 0 || text != NULL); |
| 91 | 93 |
| 92 // nothing to draw | 94 // nothing to draw |
| 93 if (text == NULL || byteLength == 0 /*|| fRC->isEmpty()*/) { | 95 if (text == NULL || byteLength == 0 /*|| fRC->isEmpty()*/) { |
| 94 return; | 96 return; |
| 95 } | 97 } |
| 96 | 98 |
| 97 this->init(paint, skPaint); | 99 this->init(rt, paint, skPaint); |
| 98 | 100 |
| 99 SkDrawCacheProc glyphCacheProc = fSkPaint.getDrawCacheProc(); | 101 SkDrawCacheProc glyphCacheProc = fSkPaint.getDrawCacheProc(); |
| 100 | 102 |
| 101 SkAutoGlyphCache autoCache(fSkPaint, &fDeviceProperties, &viewMatrix); | 103 SkAutoGlyphCache autoCache(fSkPaint, &fDeviceProperties, &viewMatrix); |
| 102 SkGlyphCache* cache = autoCache.getCache(); | 104 SkGlyphCache* cache = autoCache.getCache(); |
| 103 GrFontScaler* fontScaler = GetGrFontScaler(cache); | 105 GrFontScaler* fontScaler = GetGrFontScaler(cache); |
| 104 | 106 |
| 105 // transform our starting point | 107 // transform our starting point |
| 106 { | 108 { |
| 107 SkPoint loc; | 109 SkPoint loc; |
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| 175 fontScaler); | 177 fontScaler); |
| 176 } | 178 } |
| 177 | 179 |
| 178 fx += glyph.fAdvanceX; | 180 fx += glyph.fAdvanceX; |
| 179 fy += glyph.fAdvanceY; | 181 fy += glyph.fAdvanceY; |
| 180 } | 182 } |
| 181 | 183 |
| 182 this->finish(); | 184 this->finish(); |
| 183 } | 185 } |
| 184 | 186 |
| 185 void GrBitmapTextContext::onDrawPosText(const GrPaint& paint, const SkPaint& skP
aint, | 187 void GrBitmapTextContext::onDrawPosText(GrRenderTarget* rt, const GrPaint& paint
, |
| 188 const SkPaint& skPaint, |
| 186 const SkMatrix& viewMatrix, | 189 const SkMatrix& viewMatrix, |
| 187 const char text[], size_t byteLength, | 190 const char text[], size_t byteLength, |
| 188 const SkScalar pos[], int scalarsPerPosi
tion, | 191 const SkScalar pos[], int scalarsPerPosi
tion, |
| 189 const SkPoint& offset) { | 192 const SkPoint& offset) { |
| 190 SkASSERT(byteLength == 0 || text != NULL); | 193 SkASSERT(byteLength == 0 || text != NULL); |
| 191 SkASSERT(1 == scalarsPerPosition || 2 == scalarsPerPosition); | 194 SkASSERT(1 == scalarsPerPosition || 2 == scalarsPerPosition); |
| 192 | 195 |
| 193 // nothing to draw | 196 // nothing to draw |
| 194 if (text == NULL || byteLength == 0/* || fRC->isEmpty()*/) { | 197 if (text == NULL || byteLength == 0/* || fRC->isEmpty()*/) { |
| 195 return; | 198 return; |
| 196 } | 199 } |
| 197 | 200 |
| 198 this->init(paint, skPaint); | 201 this->init(rt, paint, skPaint); |
| 199 | 202 |
| 200 SkDrawCacheProc glyphCacheProc = fSkPaint.getDrawCacheProc(); | 203 SkDrawCacheProc glyphCacheProc = fSkPaint.getDrawCacheProc(); |
| 201 | 204 |
| 202 SkAutoGlyphCache autoCache(fSkPaint, &fDeviceProperties, &viewMatrix); | 205 SkAutoGlyphCache autoCache(fSkPaint, &fDeviceProperties, &viewMatrix); |
| 203 SkGlyphCache* cache = autoCache.getCache(); | 206 SkGlyphCache* cache = autoCache.getCache(); |
| 204 GrFontScaler* fontScaler = GetGrFontScaler(cache); | 207 GrFontScaler* fontScaler = GetGrFontScaler(cache); |
| 205 | 208 |
| 206 // if we have RGB, then we won't have any SkShaders so no need to use a loca
lmatrix, but for | 209 // if we have RGB, then we won't have any SkShaders so no need to use a loca
lmatrix, but for |
| 207 // performance reasons we just invert here instead | 210 // performance reasons we just invert here instead |
| 208 if (!viewMatrix.invert(&fLocalMatrix)) { | 211 if (!viewMatrix.invert(&fLocalMatrix)) { |
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| 445 | 448 |
| 446 // flush any accumulated draws before drawing this glyph as a path. | 449 // flush any accumulated draws before drawing this glyph as a path. |
| 447 this->flush(); | 450 this->flush(); |
| 448 | 451 |
| 449 SkMatrix translate; | 452 SkMatrix translate; |
| 450 translate.setTranslate(SkFixedToScalar(vx - SkIntToFixed(glyph->fBounds.
fLeft)), | 453 translate.setTranslate(SkFixedToScalar(vx - SkIntToFixed(glyph->fBounds.
fLeft)), |
| 451 SkFixedToScalar(vy - SkIntToFixed(glyph->fBounds.
fTop))); | 454 SkFixedToScalar(vy - SkIntToFixed(glyph->fBounds.
fTop))); |
| 452 SkPath tmpPath(*glyph->fPath); | 455 SkPath tmpPath(*glyph->fPath); |
| 453 tmpPath.transform(translate); | 456 tmpPath.transform(translate); |
| 454 GrStrokeInfo strokeInfo(SkStrokeRec::kFill_InitStyle); | 457 GrStrokeInfo strokeInfo(SkStrokeRec::kFill_InitStyle); |
| 455 fContext->drawPath(fPaint, SkMatrix::I(), tmpPath, strokeInfo); | 458 fContext->drawPath(fRenderTarget, fPaint, SkMatrix::I(), tmpPath, stroke
Info); |
| 456 | 459 |
| 457 // remove this glyph from the vertices we need to allocate | 460 // remove this glyph from the vertices we need to allocate |
| 458 fTotalVertexCount -= kVerticesPerGlyph; | 461 fTotalVertexCount -= kVerticesPerGlyph; |
| 459 return; | 462 return; |
| 460 } | 463 } |
| 461 | 464 |
| 462 SkASSERT(glyph->fPlot); | 465 SkASSERT(glyph->fPlot); |
| 463 GrDrawTarget::DrawToken drawToken = fDrawTarget->getCurrentDrawToken(); | 466 GrDrawTarget::DrawToken drawToken = fDrawTarget->getCurrentDrawToken(); |
| 464 glyph->fPlot->setDrawToken(drawToken); | 467 glyph->fPlot->setDrawToken(drawToken); |
| 465 | 468 |
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| 543 fCurrVertex += 4; | 546 fCurrVertex += 4; |
| 544 } | 547 } |
| 545 | 548 |
| 546 void GrBitmapTextContext::flush() { | 549 void GrBitmapTextContext::flush() { |
| 547 if (NULL == fDrawTarget) { | 550 if (NULL == fDrawTarget) { |
| 548 return; | 551 return; |
| 549 } | 552 } |
| 550 | 553 |
| 551 if (fCurrVertex > 0) { | 554 if (fCurrVertex > 0) { |
| 552 GrPipelineBuilder pipelineBuilder; | 555 GrPipelineBuilder pipelineBuilder; |
| 553 pipelineBuilder.setFromPaint(fPaint, fContext->getRenderTarget()); | 556 pipelineBuilder.setFromPaint(fPaint, fRenderTarget); |
| 554 | 557 |
| 555 // setup our sampler state for our text texture/atlas | 558 // setup our sampler state for our text texture/atlas |
| 556 SkASSERT(SkIsAlign4(fCurrVertex)); | 559 SkASSERT(SkIsAlign4(fCurrVertex)); |
| 557 SkASSERT(fCurrTexture); | 560 SkASSERT(fCurrTexture); |
| 558 | 561 |
| 559 SkASSERT(fStrike); | 562 SkASSERT(fStrike); |
| 560 GrColor color = fPaint.getColor(); | 563 GrColor color = fPaint.getColor(); |
| 561 switch (fCurrMaskFormat) { | 564 switch (fCurrMaskFormat) { |
| 562 // Color bitmap text | 565 // Color bitmap text |
| 563 case kARGB_GrMaskFormat: { | 566 case kARGB_GrMaskFormat: { |
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| 620 } | 623 } |
| 621 } | 624 } |
| 622 | 625 |
| 623 inline void GrBitmapTextContext::finish() { | 626 inline void GrBitmapTextContext::finish() { |
| 624 this->flush(); | 627 this->flush(); |
| 625 fTotalVertexCount = 0; | 628 fTotalVertexCount = 0; |
| 626 | 629 |
| 627 GrTextContext::finish(); | 630 GrTextContext::finish(); |
| 628 } | 631 } |
| 629 | 632 |
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