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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "SkPictureShader.h" | 8 #include "SkPictureShader.h" |
9 | 9 |
10 #include "SkBitmap.h" | 10 #include "SkBitmap.h" |
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49 | 49 |
50 buffer.write32(fTmx); | 50 buffer.write32(fTmx); |
51 buffer.write32(fTmy); | 51 buffer.write32(fTmy); |
52 fPicture->flatten(buffer); | 52 fPicture->flatten(buffer); |
53 } | 53 } |
54 | 54 |
55 SkShader* SkPictureShader::refBitmapShader(const SkMatrix& matrix, const SkMatri
x* localM) const { | 55 SkShader* SkPictureShader::refBitmapShader(const SkMatrix& matrix, const SkMatri
x* localM) const { |
56 SkASSERT(fPicture && fPicture->width() > 0 && fPicture->height() > 0); | 56 SkASSERT(fPicture && fPicture->width() > 0 && fPicture->height() > 0); |
57 | 57 |
58 SkMatrix m; | 58 SkMatrix m; |
59 if (this->hasLocalMatrix()) { | 59 m.setConcat(matrix, this->getLocalMatrix()); |
60 m.setConcat(matrix, this->getLocalMatrix()); | |
61 } else { | |
62 m = matrix; | |
63 } | |
64 if (localM) { | 60 if (localM) { |
65 m.preConcat(*localM); | 61 m.preConcat(*localM); |
66 } | 62 } |
67 | 63 |
68 // Use a rotation-invariant scale | 64 // Use a rotation-invariant scale |
69 SkPoint scale; | 65 SkPoint scale; |
70 if (!SkDecomposeUpper2x2(m, NULL, &scale, NULL)) { | 66 if (!SkDecomposeUpper2x2(m, NULL, &scale, NULL)) { |
71 // Decomposition failed, use an approximation. | 67 // Decomposition failed, use an approximation. |
72 scale.set(SkScalarSqrt(m.getScaleX() * m.getScaleX() + m.getSkewX() * m.
getSkewX()), | 68 scale.set(SkScalarSqrt(m.getScaleX() * m.getScaleX() + m.getSkewX() * m.
getSkewX()), |
73 SkScalarSqrt(m.getScaleY() * m.getScaleY() + m.getSkewY() * m.
getSkewY())); | 69 SkScalarSqrt(m.getScaleY() * m.getScaleY() + m.getSkewY() * m.
getSkewY())); |
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193 | 189 |
194 #if SK_SUPPORT_GPU | 190 #if SK_SUPPORT_GPU |
195 GrEffectRef* SkPictureShader::asNewEffect(GrContext* context, const SkPaint& pai
nt) const { | 191 GrEffectRef* SkPictureShader::asNewEffect(GrContext* context, const SkPaint& pai
nt) const { |
196 SkAutoTUnref<SkShader> bitmapShader(this->refBitmapShader(context->getMatrix
(), NULL)); | 192 SkAutoTUnref<SkShader> bitmapShader(this->refBitmapShader(context->getMatrix
(), NULL)); |
197 if (!bitmapShader) { | 193 if (!bitmapShader) { |
198 return NULL; | 194 return NULL; |
199 } | 195 } |
200 return bitmapShader->asNewEffect(context, paint); | 196 return bitmapShader->asNewEffect(context, paint); |
201 } | 197 } |
202 #endif | 198 #endif |
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