skia2/tools/viewer/sk_app/WindowContext.h

72 lines
1.8 KiB
C++

/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef WindowContext_DEFINED
#define WindowContext_DEFINED
#include "DisplayParams.h"
#include "GrTypes.h"
#include "SkRefCnt.h"
#include "SkSurfaceProps.h"
class GrContext;
class SkSurface;
class GrRenderTarget;
namespace sk_app {
class WindowContext {
public:
WindowContext() : fContext(nullptr)
, fSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType) {}
virtual ~WindowContext() {}
virtual sk_sp<SkSurface> getBackbufferSurface() = 0;
virtual void swapBuffers() = 0;
virtual bool isValid() = 0;
virtual void resize(uint32_t w, uint32_t h) = 0;
const DisplayParams& getDisplayParams() { return fDisplayParams; }
virtual void setDisplayParams(const DisplayParams& params) = 0;
SkSurfaceProps getSurfaceProps() const { return fSurfaceProps; }
void setSurfaceProps(const SkSurfaceProps& props) {
fSurfaceProps = props;
}
virtual GrBackendContext getBackendContext() = 0;
GrContext* getGrContext() const { return fContext; }
sk_sp<SkSurface> createOffscreenSurface(bool sRGB);
void presentRenderSurface(sk_sp<SkSurface> renderSurface, sk_sp<GrRenderTarget> rt,
int colorBits);
protected:
virtual bool isGpuContext() { return true; }
sk_sp<SkSurface> createRenderSurface(GrBackendRenderTargetDesc, int colorBits);
GrContext* fContext;
int fWidth;
int fHeight;
DisplayParams fDisplayParams;
GrPixelConfig fPixelConfig;
SkSurfaceProps fSurfaceProps;
private:
sk_sp<SkSurface> createSurface(
GrBackendRenderTargetDesc*, int colorBits, bool offscreen, bool forceSRGB);
};
} // namespace sk_app
#endif