LCOV - code coverage report
Current view: top level - gfx/skia/skia/src/effects/gradients - SkLinearGradient.h (source / functions) Hit Total Coverage
Test: output.info Lines: 7 8 87.5 %
Date: 2017-07-14 16:53:18 Functions: 5 7 71.4 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :  * Copyright 2012 Google Inc.
       3             :  *
       4             :  * Use of this source code is governed by a BSD-style license that can be
       5             :  * found in the LICENSE file.
       6             :  */
       7             : 
       8             : #ifndef SkLinearGradient_DEFINED
       9             : #define SkLinearGradient_DEFINED
      10             : 
      11             : #include "SkGradientShaderPriv.h"
      12             : #include "SkNx.h"
      13             : 
      14             : struct Sk4fStorage {
      15             :     float fArray[4];
      16             : 
      17        1270 :     operator Sk4f() const {
      18        2540 :         return Sk4f::Load(fArray);
      19             :     }
      20             : 
      21          81 :     Sk4fStorage& operator=(const Sk4f& src) {
      22          81 :         src.store(fArray);
      23          81 :         return *this;
      24             :     }
      25             : };
      26             : 
      27          75 : class SkLinearGradient : public SkGradientShaderBase {
      28             : public:
      29             :     enum {
      30             :         // Temp flag for testing the 4f impl.
      31             :         kForce4fContext_PrivateFlag     = 1 << 7,
      32             :     };
      33             : 
      34             :     SkLinearGradient(const SkPoint pts[2], const Descriptor&);
      35             : 
      36          25 :     class LinearGradientContext : public SkGradientShaderBase::GradientShaderBaseContext {
      37             :     public:
      38             :         LinearGradientContext(const SkLinearGradient&, const ContextRec&);
      39             : 
      40             :         void shadeSpan(int x, int y, SkPMColor dstC[], int count) override;
      41             : 
      42             :         struct Rec {
      43             :             Sk4fStorage fColor;
      44             :             float       fPos;
      45             :             float       fPosScale;
      46             :         };
      47             :     private:
      48             :         SkTDArray<Rec>  fRecs;
      49             :         bool            fApplyAlphaAfterInterp;
      50             : 
      51             :         void shade4_clamp(int x, int y, SkPMColor dstC[], int count);
      52             :         template <bool, bool> void shade4_dx_clamp(SkPMColor dstC[], int count, float fx, float dx,
      53             :                                                    float invDx, const float dither[2]);
      54             : 
      55             :         typedef SkGradientShaderBase::GradientShaderBaseContext INHERITED;
      56             :     };
      57             : 
      58             :     GradientType asAGradient(GradientInfo* info) const override;
      59             : #if SK_SUPPORT_GPU
      60             :     sk_sp<GrFragmentProcessor> asFragmentProcessor(const AsFPArgs&) const override;
      61             : #endif
      62             : 
      63             :     SK_TO_STRING_OVERRIDE()
      64           0 :     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLinearGradient)
      65             : 
      66             : protected:
      67             :     SkLinearGradient(SkReadBuffer& buffer);
      68             :     void flatten(SkWriteBuffer& buffer) const override;
      69             :     Context* onMakeContext(const ContextRec&, SkArenaAlloc*) const override;
      70             : 
      71             :     bool onAppendStages(SkRasterPipeline*, SkColorSpace*, SkArenaAlloc*,
      72             :                         const SkMatrix&, const SkPaint&, const SkMatrix*) const override;
      73             : 
      74             : private:
      75             :     class LinearGradient4fContext;
      76             : 
      77             :     friend class SkGradientShader;
      78             :     typedef SkGradientShaderBase INHERITED;
      79             :     const SkPoint fStart;
      80             :     const SkPoint fEnd;
      81             : };
      82             : 
      83             : #endif

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