8b0e8ac5f5
Eliminates SkFlattenable{Read,Write}Buffer, promoting SkOrdered{Read,Write}Buffer
a step each in the hierarchy.
What used to be this:
SkFlattenableWriteBuffer -> SkOrderedWriteBuffer
SkFlattenableReadBuffer -> SkOrderedReadBuffer
SkFlattenableReadBuffer -> SkValidatingReadBuffer
is now
SkWriteBuffer
SkReadBuffer -> SkValidatingReadBuffer
Benefits:
- code is simpler, names are less wordy
- the generic SkFlattenableFooBuffer code in SkPaint was incorrect; removed
- write buffers are completely devirtualized, important for record speed
This refactoring was mostly mechanical. You aren't going to find anything
interesting in files with less than 10 lines changed.
BUG=skia:
R=reed@google.com, scroggo@google.com, djsollen@google.com, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/134163010
git-svn-id: http://skia.googlecode.com/svn/trunk@13245 2bbb7eff-a529-9590-31e7-b0007b416f81
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
|
|
#ifndef SkComposeShader_DEFINED
|
|
#define SkComposeShader_DEFINED
|
|
|
|
#include "SkShader.h"
|
|
|
|
class SkXfermode;
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/** \class SkComposeShader
|
|
This subclass of shader returns the coposition 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".
|
|
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
|
|
@param mode The xfermode that combines the colors from the two shaders. If mode
|
|
is null, then SRC_OVER is assumed.
|
|
*/
|
|
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;
|
|
|
|
SK_DEVELOPER_TO_STRING()
|
|
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkComposeShader)
|
|
|
|
protected:
|
|
SkComposeShader(SkReadBuffer& );
|
|
virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
|
|
|
|
private:
|
|
|
|
SkShader* fShaderA;
|
|
SkShader* fShaderB;
|
|
SkXfermode* fMode;
|
|
|
|
typedef SkShader INHERITED;
|
|
};
|
|
|
|
#endif
|