skia2/include/core/SkComposeShader.h
mtklein 72c9faab45 Fix up all the easy virtual ... SK_OVERRIDE cases.
This fixes every case where virtual and SK_OVERRIDE were on the same line,
which should be the bulk of cases.  We'll have to manually clean up the rest
over time unless I level up in regexes.

for f in (find . -type f); perl -p -i -e 's/virtual (.*)SK_OVERRIDE/\1SK_OVERRIDE/g' $f; end

BUG=skia:

Review URL: https://codereview.chromium.org/806653007
2015-01-09 10:06:40 -08:00

84 lines
2.6 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 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 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();
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();
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
bool asACompose(ComposeRec* rec) const SK_OVERRIDE;
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkComposeShader)
protected:
SkComposeShader(SkReadBuffer& );
void flatten(SkWriteBuffer&) const SK_OVERRIDE;
Context* onCreateContext(const ContextRec&, void*) const SK_OVERRIDE;
private:
SkShader* fShaderA;
SkShader* fShaderB;
SkXfermode* fMode;
typedef SkShader INHERITED;
};
#endif