Add functions for inspecting SkShader.

src/core/SkComposeShader.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkComposeShader.h"
@@ skipping 103 matching lines @@
         SkShader::Context* contextA, SkShader::Context* contextB)
     : INHERITED(shader, rec)
     , fShaderContextA(contextA)
     , fShaderContextB(contextB) {}
 
 SkComposeShader::ComposeShaderContext::~ComposeShaderContext() {
     fShaderContextA->~Context();
     fShaderContextB->~Context();
 }
 
+bool SkComposeShader::asACompose(ComposeRec* rec) const {
+    if (rec) {
+        rec->fShaderA = fShaderA;
+        rec->fShaderB = fShaderB;
+        rec->fMode = fMode;
+    }
+    return true;
+}
+
+
 // larger is better (fewer times we have to loop), but we shouldn't
 // take up too much stack-space (each element is 4 bytes)
 #define TMP_COLOR_COUNT     64
 
 void SkComposeShader::ComposeShaderContext::shadeSpan(int x, int y, SkPMColor result[], int count) {
     SkShader::Context* shaderContextA = fShaderContextA;
     SkShader::Context* shaderContextB = fShaderContextB;
     SkXfermode*        mode = static_cast<const SkComposeShader&>(fShader).fMode;
     unsigned           scale = SkAlpha255To256(this->getPaintAlpha());
 
@@ skipping 63 matching lines @@
     str->append(" ShaderB: ");
     fShaderB->toString(str);
     str->append(" Xfermode: ");
     fMode->toString(str);
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif