Upstream version 7.36.149.0

[platform/framework/web/crosswalk.git] / src / third_party / skia / include / core / SkComposeShader.h

diff --git a/src/third_party/skia/include/core/SkComposeShader.h b/src/third_party/skia/include/core/SkComposeShader.h
index e29578c..cfb03b9 100644 (file)
--- a/src/third_party/skia/include/core/SkComposeShader.h
+++ b/src/third_party/skia/include/core/SkComposeShader.h
@@ -17,14 +17,14 @@ class SkXfermode;
 ///////////////////////////////////////////////////////////////////////////////////////////
 
 /** \class SkComposeShader
-    This subclass of shader returns the coposition of two other shaders, combined by
+    This subclass of shader returns the composition of two other shaders, combined by
     a xfermode.
 */
 class SK_API SkComposeShader : public SkShader {
 public:
     /** Create a new compose shader, given shaders A, B, and a combining xfermode mode.
         When the xfermode is called, it will be given the result from shader A as its
-        "dst", and the result of from shader B as its "src".
+        "dst", and the result from shader B as its "src".
         mode->xfer32(sA_result, sB_result, ...)
         @param shaderA  The colors from this shader are seen as the "dst" by the xfermode
         @param shaderB  The colors from this shader are seen as the "src" by the xfermode
@@ -34,10 +34,33 @@ public:
     SkComposeShader(SkShader* sA, SkShader* sB, SkXfermode* mode = NULL);
     virtual ~SkComposeShader();
 
-    virtual bool setContext(const SkBitmap&, const SkPaint&,
-                            const SkMatrix&) SK_OVERRIDE;
-    virtual void endContext() SK_OVERRIDE;
-    virtual void shadeSpan(int x, int y, SkPMColor[], int count) SK_OVERRIDE;
+    virtual size_t contextSize() const SK_OVERRIDE;
+
+    class ComposeShaderContext : public SkShader::Context {
+    public:
+        // When this object gets destroyed, it will call contextA and contextB's destructor
+        // but it will NOT free the memory.
+        ComposeShaderContext(const SkComposeShader&, const ContextRec&,
+                             SkShader::Context* contextA, SkShader::Context* contextB);
+
+        SkShader::Context* getShaderContextA() const { return fShaderContextA; }
+        SkShader::Context* getShaderContextB() const { return fShaderContextB; }
+
+        virtual ~ComposeShaderContext();
+
+        virtual void shadeSpan(int x, int y, SkPMColor[], int count) SK_OVERRIDE;
+
+    private:
+        SkShader::Context* fShaderContextA;
+        SkShader::Context* fShaderContextB;
+
+        typedef SkShader::Context INHERITED;
+    };
+
+#ifdef SK_DEBUG
+    SkShader* getShaderA() { return fShaderA; }
+    SkShader* getShaderB() { return fShaderB; }
+#endif
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkComposeShader)
@@ -45,9 +68,9 @@ public:
 protected:
     SkComposeShader(SkReadBuffer& );
     virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
+    virtual Context* onCreateContext(const ContextRec&, void*) const SK_OVERRIDE;
 
 private:
-
     SkShader*   fShaderA;
     SkShader*   fShaderB;
     SkXfermode* fMode;