| rileya@google.com | 589708b | 2012-07-26 20:04:23 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2012 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
| 9 | #ifndef SkTwoPointRadialGradient_DEFINED |
| 10 | #define SkTwoPointRadialGradient_DEFINED |
| 11 | |
| 12 | #include "SkGradientShaderPriv.h" |
| 13 | |
| 14 | class SkTwoPointRadialGradient : public SkGradientShaderBase { |
| 15 | public: |
| 16 | SkTwoPointRadialGradient(const SkPoint& start, SkScalar startRadius, |
| 17 | const SkPoint& end, SkScalar endRadius, |
| 18 | const SkColor colors[], const SkScalar pos[], |
| 19 | int colorCount, SkShader::TileMode mode, |
| 20 | SkUnitMapper* mapper); |
| 21 | |
| 22 | virtual BitmapType asABitmap(SkBitmap* bitmap, |
| 23 | SkMatrix* matrix, |
| 24 | TileMode* xy) const SK_OVERRIDE; |
| 25 | virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE; |
| 26 | virtual GrCustomStage* asNewCustomStage(GrContext* context, |
| 27 | GrSamplerState* sampler) const SK_OVERRIDE; |
| 28 | |
| 29 | virtual void shadeSpan(int x, int y, SkPMColor* dstCParam, |
| 30 | int count) SK_OVERRIDE; |
| 31 | virtual bool setContext(const SkBitmap& device, |
| 32 | const SkPaint& paint, |
| 33 | const SkMatrix& matrix) SK_OVERRIDE; |
| 34 | |
| 35 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTwoPointRadialGradient) |
| 36 | |
| 37 | protected: |
| 38 | SkTwoPointRadialGradient(SkFlattenableReadBuffer& buffer); |
| 39 | virtual void flatten(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE; |
| 40 | |
| 41 | private: |
| 42 | typedef SkGradientShaderBase INHERITED; |
| 43 | const SkPoint fCenter1; |
| 44 | const SkPoint fCenter2; |
| 45 | const SkScalar fRadius1; |
| 46 | const SkScalar fRadius2; |
| 47 | SkPoint fDiff; |
| 48 | SkScalar fStartRadius, fDiffRadius, fSr2D2, fA, fOneOverTwoA; |
| 49 | |
| 50 | void init(); |
| 51 | }; |
| 52 | |
| 53 | #endif |
| 54 | |