df3695e5c7
https://codereview.chromium.org/13521006/ git-svn-id: http://skia.googlecode.com/svn/trunk@8571 2bbb7eff-a529-9590-31e7-b0007b416f81
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef GrAARectRenderer_DEFINED
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#define GrAARectRenderer_DEFINED
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#include "GrRect.h"
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#include "GrRefCnt.h"
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class GrGpu;
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class GrDrawTarget;
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class GrIndexBuffer;
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class SkMatrix;
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/*
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* This class wraps helper functions that draw AA rects (filled & stroked)
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*/
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class GrAARectRenderer : public GrRefCnt {
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public:
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SK_DECLARE_INST_COUNT(GrAARectRenderer)
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GrAARectRenderer()
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: fAAFillRectIndexBuffer(NULL)
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, fAAStrokeRectIndexBuffer(NULL) {
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}
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void reset();
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~GrAARectRenderer() {
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this->reset();
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}
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// TODO: potentialy fuse the fill & stroke methods and differentiate
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// between them by passing in strokeWidth (<0 means fill).
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// TODO: Remove the useVertexCoverage boolean. Just use it all the time
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// since we now have a coverage vertex attribute
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void fillAARect(GrGpu* gpu,
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GrDrawTarget* target,
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const GrRect& devRect,
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bool useVertexCoverage);
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void shaderFillAARect(GrGpu* gpu,
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GrDrawTarget* target,
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const GrRect& rect,
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const SkMatrix& combinedMatrix,
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const GrRect& devRect,
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bool useVertexCoverage);
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void strokeAARect(GrGpu* gpu,
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GrDrawTarget* target,
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const GrRect& devRect,
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const GrVec& devStrokeSize,
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bool useVertexCoverage);
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private:
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GrIndexBuffer* fAAFillRectIndexBuffer;
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GrIndexBuffer* fAAStrokeRectIndexBuffer;
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GrIndexBuffer* aaFillRectIndexBuffer(GrGpu* gpu);
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static int aaStrokeRectIndexCount();
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GrIndexBuffer* aaStrokeRectIndexBuffer(GrGpu* gpu);
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typedef GrRefCnt INHERITED;
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};
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#endif // GrAARectRenderer_DEFINED
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