| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkLocalMatrixShader_DEFINED |
| #define SkLocalMatrixShader_DEFINED |
| |
| #include "SkShader.h" |
| #include "SkReadBuffer.h" |
| #include "SkWriteBuffer.h" |
| |
| class SkLocalMatrixShader : public SkShader { |
| public: |
| SkLocalMatrixShader(SkShader* proxy, const SkMatrix& localMatrix) |
| : INHERITED(&localMatrix) |
| , fProxyShader(SkRef(proxy)) |
| {} |
| |
| virtual size_t contextSize() const SK_OVERRIDE { |
| return fProxyShader->contextSize(); |
| } |
| |
| virtual BitmapType asABitmap(SkBitmap* bitmap, SkMatrix* matrix, |
| TileMode* mode) const SK_OVERRIDE { |
| return fProxyShader->asABitmap(bitmap, matrix, mode); |
| } |
| |
| virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE { |
| return fProxyShader->asAGradient(info); |
| } |
| |
| #if SK_SUPPORT_GPU |
| |
| virtual bool asNewEffect(GrContext* context, const SkPaint& paint, const SkMatrix* localMatrix, |
| GrColor* grColor, GrEffect** grEffect) const SK_OVERRIDE { |
| SkMatrix tmp = this->getLocalMatrix(); |
| if (localMatrix) { |
| tmp.preConcat(*localMatrix); |
| } |
| return fProxyShader->asNewEffect(context, paint, &tmp, grColor, grEffect); |
| } |
| |
| #else |
| |
| virtual bool asNewEffect(GrContext* context, const SkPaint& paint, const SkMatrix* localMatrix, |
| GrColor* grColor, GrEffect** grEffect) const SK_OVERRIDE { |
| SkDEBUGFAIL("Should not call in GPU-less build"); |
| return false; |
| } |
| |
| #endif |
| |
| virtual SkShader* refAsALocalMatrixShader(SkMatrix* localMatrix) const SK_OVERRIDE { |
| if (localMatrix) { |
| *localMatrix = this->getLocalMatrix(); |
| } |
| return SkRef(fProxyShader.get()); |
| } |
| |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLocalMatrixShader) |
| |
| protected: |
| SkLocalMatrixShader(SkReadBuffer&); |
| virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
| virtual Context* onCreateContext(const ContextRec&, void*) const SK_OVERRIDE; |
| |
| private: |
| SkAutoTUnref<SkShader> fProxyShader; |
| |
| typedef SkShader INHERITED; |
| }; |
| |
| #endif |