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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 "GrDistanceFieldTextContext.h" | 8 #include "GrDistanceFieldTextContext.h" |
9 #include "GrAtlas.h" | 9 #include "GrAtlas.h" |
10 #include "GrDrawTarget.h" | 10 #include "GrDrawTarget.h" |
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162 GrTexture** gammaTexture) { | 162 GrTexture** gammaTexture) { |
163 if (NULL == *gammaTexture) { | 163 if (NULL == *gammaTexture) { |
164 int width, height; | 164 int width, height; |
165 size_t size; | 165 size_t size; |
166 | 166 |
167 #ifdef SK_GAMMA_CONTRAST | 167 #ifdef SK_GAMMA_CONTRAST |
168 SkScalar contrast = SK_GAMMA_CONTRAST; | 168 SkScalar contrast = SK_GAMMA_CONTRAST; |
169 #else | 169 #else |
170 SkScalar contrast = 0.5f; | 170 SkScalar contrast = 0.5f; |
171 #endif | 171 #endif |
172 SkScalar paintGamma = deviceProperties.getGamma(); | 172 SkScalar paintGamma = deviceProperties.gamma(); |
173 SkScalar deviceGamma = deviceProperties.getGamma(); | 173 SkScalar deviceGamma = deviceProperties.gamma(); |
174 | 174 |
175 size = SkScalerContext::GetGammaLUTSize(contrast, paintGamma, deviceGamm
a, | 175 size = SkScalerContext::GetGammaLUTSize(contrast, paintGamma, deviceGamm
a, |
176 &width, &height); | 176 &width, &height); |
177 | 177 |
178 SkAutoTArray<uint8_t> data((int)size); | 178 SkAutoTArray<uint8_t> data((int)size); |
179 SkScalerContext::GetGammaLUTData(contrast, paintGamma, deviceGamma, data
.get()); | 179 SkScalerContext::GetGammaLUTData(contrast, paintGamma, deviceGamma, data
.get()); |
180 | 180 |
181 // TODO: Update this to use the cache rather than directly creating a te
xture. | 181 // TODO: Update this to use the cache rather than directly creating a te
xture. |
182 GrTextureDesc desc; | 182 GrTextureDesc desc; |
183 desc.fFlags = kDynamicUpdate_GrTextureFlagBit; | 183 desc.fFlags = kDynamicUpdate_GrTextureFlagBit; |
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351 | 351 |
352 uint32_t textureUniqueID = fCurrTexture->getUniqueID(); | 352 uint32_t textureUniqueID = fCurrTexture->getUniqueID(); |
353 const SkMatrix& ctm = fContext->getMatrix(); | 353 const SkMatrix& ctm = fContext->getMatrix(); |
354 | 354 |
355 // set up any flags | 355 // set up any flags |
356 uint32_t flags = 0; | 356 uint32_t flags = 0; |
357 flags |= ctm.isSimilarity() ? kSimilarity_DistanceFieldEffectFlag : 0; | 357 flags |= ctm.isSimilarity() ? kSimilarity_DistanceFieldEffectFlag : 0; |
358 flags |= fUseLCDText ? kUseLCD_DistanceFieldEffectFlag : 0; | 358 flags |= fUseLCDText ? kUseLCD_DistanceFieldEffectFlag : 0; |
359 flags |= fUseLCDText && ctm.rectStaysRect() ? | 359 flags |= fUseLCDText && ctm.rectStaysRect() ? |
360 kRectToRect_DistanceFieldEffectFlag : 0; | 360 kRectToRect_DistanceFieldEffectFlag : 0; |
361 bool useBGR = SkPixelGeometryIsBGR(fDeviceProperties.fPixelGeometry); | 361 bool useBGR = SkPixelGeometryIsBGR(fDeviceProperties.pixelGeometry()); |
362 flags |= fUseLCDText && useBGR ? kBGR_DistanceFieldEffectFlag : 0; | 362 flags |= fUseLCDText && useBGR ? kBGR_DistanceFieldEffectFlag : 0; |
363 | 363 |
364 // see if we need to create a new effect | 364 // see if we need to create a new effect |
365 if (textureUniqueID != fEffectTextureUniqueID || | 365 if (textureUniqueID != fEffectTextureUniqueID || |
366 filteredColor != fEffectColor || | 366 filteredColor != fEffectColor || |
367 flags != fEffectFlags) { | 367 flags != fEffectFlags) { |
368 if (fUseLCDText) { | 368 if (fUseLCDText) { |
369 GrColor colorNoPreMul = skcolor_to_grcolor_nopremultiply(filteredCol
or); | 369 GrColor colorNoPreMul = skcolor_to_grcolor_nopremultiply(filteredCol
or); |
370 fCachedGeometryProcessor.reset(GrDistanceFieldLCDTextureEffect::Crea
te(fCurrTexture, | 370 fCachedGeometryProcessor.reset(GrDistanceFieldLCDTextureEffect::Crea
te(fCurrTexture, |
371
params, | 371
params, |
372
fGammaTexture, | 372
fGammaTexture, |
373
gammaParams, | 373
gammaParams, |
374
colorNoPreMul, | 374
colorNoPreMul, |
375
flags)); | 375
flags)); |
376 } else { | 376 } else { |
377 #ifdef SK_GAMMA_APPLY_TO_A8 | 377 #ifdef SK_GAMMA_APPLY_TO_A8 |
378 U8CPU lum = SkColorSpaceLuminance::computeLuminance(fDevicePropertie
s.getGamma(), | 378 U8CPU lum = SkColorSpaceLuminance::computeLuminance(fDevicePropertie
s.gamma(), |
379 filteredColor); | 379 filteredColor); |
380 fCachedGeometryProcessor.reset(GrDistanceFieldTextureEffect::Create(
fCurrTexture, | 380 fCachedGeometryProcessor.reset(GrDistanceFieldTextureEffect::Create(
fCurrTexture, |
381
params, | 381
params, |
382
fGammaTexture, | 382
fGammaTexture, |
383
gammaParams, | 383
gammaParams, |
384
lum/255.f, | 384
lum/255.f, |
385
flags)); | 385
flags)); |
386 #else | 386 #else |
387 fCachedGeometryProcessor.reset(GrDistanceFieldTextureEffect::Create(
fCurrTexture, | 387 fCachedGeometryProcessor.reset(GrDistanceFieldTextureEffect::Create(
fCurrTexture, |
388
params, flags)); | 388
params, flags)); |
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667 fVertexBounds.setLargestInverted(); | 667 fVertexBounds.setLargestInverted(); |
668 } | 668 } |
669 } | 669 } |
670 | 670 |
671 inline void GrDistanceFieldTextContext::finish() { | 671 inline void GrDistanceFieldTextContext::finish() { |
672 this->flush(); | 672 this->flush(); |
673 | 673 |
674 GrTextContext::finish(); | 674 GrTextContext::finish(); |
675 } | 675 } |
676 | 676 |
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