C++程序  |  53行  |  1.54 KB


/*
 * Copyright 2012 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef GrSoftwarePathRenderer_DEFINED
#define GrSoftwarePathRenderer_DEFINED

#include "GrPathRenderer.h"

class GrContext;

/**
 * This class uses the software side to render a path to an SkBitmap and
 * then uploads the result to the gpu
 */
class GrSoftwarePathRenderer : public GrPathRenderer {
public:
    GrSoftwarePathRenderer(GrContext* context)
        : fContext(context) {
    }

    virtual bool canDrawPath(const GrDrawTarget*,
                             const GrPipelineBuilder*,
                             const SkMatrix& viewMatrix,
                             const SkPath&,
                             const GrStrokeInfo&,
                             bool antiAlias) const override;
protected:
    virtual StencilSupport onGetStencilSupport(const GrDrawTarget*,
                                               const GrPipelineBuilder*,
                                               const SkPath&,
                                               const GrStrokeInfo&) const override;

    virtual bool onDrawPath(GrDrawTarget*,
                            GrPipelineBuilder*,
                            GrColor,
                            const SkMatrix& viewMatrix,
                            const SkPath&,
                            const GrStrokeInfo&,
                            bool antiAlias) override;

private:
    GrContext*     fContext;

    typedef GrPathRenderer INHERITED;
};

#endif