Move SkShader::fLocalMatrix into SkShader constructor.

src/core/SkShader.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 "SkBitmapProcShader.h"
 #include "SkReadBuffer.h"
 #include "SkMallocPixelRef.h"
 #include "SkPaint.h"
 #include "SkPicture.h"
 #include "SkPictureShader.h"
 #include "SkScalar.h"
 #include "SkShader.h"
 #include "SkWriteBuffer.h"
 
-SkShader::SkShader() {
-    fLocalMatrix.reset();
+SkShader::SkShader(const SkMatrix* localMatrix) {
+    if (localMatrix) {
+        fLocalMatrix = *localMatrix;
+    } else {
+        fLocalMatrix.reset();
+    }
 }
 
 SkShader::SkShader(SkReadBuffer& buffer)
         : INHERITED(buffer) {
     if (buffer.readBool()) {
         buffer.readMatrix(&fLocalMatrix);
     } else {
         fLocalMatrix.reset();
     }
 }
@@ skipping 143 matching lines @@
 }
 
 SkShader::GradientType SkShader::asAGradient(GradientInfo* info) const {
     return kNone_GradientType;
 }
 
 GrEffectRef* SkShader::asNewEffect(GrContext*, const SkPaint&) const {
     return NULL;
 }
 
-SkShader* SkShader::CreateBitmapShader(const SkBitmap& src,
-                                       TileMode tmx, TileMode tmy) {
-    return ::CreateBitmapShader(src, tmx, tmy, NULL);
+SkShader* SkShader::CreateBitmapShader(const SkBitmap& src, TileMode tmx, TileMode tmy,
+                                       const SkMatrix* localMatrix) {
+    return ::CreateBitmapShader(src, tmx, tmy, localMatrix, NULL);
 }
 
 SkShader* SkShader::CreatePictureShader(SkPicture* src, TileMode tmx, TileMode tmy) {
     return SkPictureShader::Create(src, tmx, tmy);
 }
 
 #ifndef SK_IGNORE_TO_STRING
 void SkShader::toString(SkString* str) const {
     if (this->hasLocalMatrix()) {
         str->append(" ");
@@ skipping 49 matching lines @@
 
     return SkNEW_PLACEMENT_ARGS(storage, ColorShaderContext, (*this, device, paint, matrix));
 }
 
 SkColorShader::ColorShaderContext::ColorShaderContext(const SkColorShader& shader,
                                                       const SkBitmap& device,
                                                       const SkPaint& paint,
                                                       const SkMatrix& matrix)
     : INHERITED(shader, device, paint, matrix)
 {
-    SkColor color;
-    unsigned a;
-
-    color = shader.fColor;
-    a = SkAlphaMul(SkColorGetA(color), SkAlpha255To256(paint.getAlpha()));
+    SkColor color = shader.fColor;
+    unsigned a = SkAlphaMul(SkColorGetA(color), SkAlpha255To256(paint.getAlpha()));
 
     unsigned r = SkColorGetR(color);
     unsigned g = SkColorGetG(color);
     unsigned b = SkColorGetB(color);
 
     // we want this before we apply any alpha
     fColor16 = SkPack888ToRGB16(r, g, b);
 
     if (a != 255) {
         r = SkMulDiv255Round(r, a);
@@ skipping 59 matching lines @@
 #include "SkEmptyShader.h"
 
 void SkEmptyShader::toString(SkString* str) const {
     str->append("SkEmptyShader: (");
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif