skia2/tools/viewer/sk_app/GLWindowContext.h

66 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 GLWindowContext_DEFINED
#define GLWindowContext_DEFINED
#include "gl/GrGLInterface.h"
#include "SkRefCnt.h"
#include "GrRenderTarget.h"
#include "SkSurface.h"
#include "WindowContext.h"
class GrContext;
namespace sk_app {
class GLWindowContext : public WindowContext {
public:
// This is defined in the platform .cpp file
static GLWindowContext* Create(void* platformData, const DisplayParams& params);
sk_sp<SkSurface> getBackbufferSurface() override;
bool isValid() override { return SkToBool(fBackendContext.get()); }
void resize(uint32_t w, uint32_t h) override;
void swapBuffers() override;
void setDisplayParams(const DisplayParams& params) override;
GrBackendContext getBackendContext() override {
return (GrBackendContext) fBackendContext.get();
}
protected:
GLWindowContext(void*, const DisplayParams&);
void initializeContext(void*, const DisplayParams&);
virtual void onInitializeContext(void*, const DisplayParams&) = 0;
void destroyContext();
virtual void onDestroyContext() = 0;
virtual void onSwapBuffers() = 0;
SkAutoTUnref<const GrGLInterface> fBackendContext;
sk_sp<GrRenderTarget> fRenderTarget;
sk_sp<SkSurface> fSurface;
// parameters obtained from the native window
// Note that the platform .cpp file is responsible for
// initializing fSampleCount, fStencilBits, and fColorBits!
int fSampleCount;
int fStencilBits;
int fColorBits;
int fActualColorBits;
};
} // namespace sk_app
#endif