skia2/tools/sk_app/MetalWindowContext.h
Jim Van Verth be39f713e5 Add Metal context to Viewer.
Bug: skia:8737
Change-Id: I5c4c839bcf39f2cd3a9a32d005bf4bdb7c42e6a5
Reviewed-on: https://skia-review.googlesource.com/c/187925
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
2019-02-08 21:26:52 +00:00

59 lines
1.5 KiB
Objective-C

/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef MetalWindowContext_DEFINED
#define MetalWindowContext_DEFINED
#include "SkRefCnt.h"
#include "SkSurface.h"
#include "WindowContext.h"
#import <Metal/Metal.h>
#import <MetalKit/MetalKit.h>
class GrContext;
namespace sk_app {
class MetalWindowContext : public WindowContext {
public:
sk_sp<SkSurface> getBackbufferSurface() override;
bool isValid() override { return fValid; }
void resize(int w, int h) override;
void swapBuffers() override;
void setDisplayParams(const DisplayParams& params) override;
protected:
MetalWindowContext(const DisplayParams&);
// This should be called by subclass constructor. It is also called when window/display
// parameters change. This will in turn call onInitializeContext().
void initializeContext();
virtual bool onInitializeContext() = 0;
// This should be called by subclass destructor. It is also called when window/display
// parameters change prior to initializing a new GL context. This will in turn call
// onDestroyContext().
void destroyContext();
virtual void onDestroyContext() = 0;
bool fValid;
id<MTLDevice> fDevice;
id<MTLCommandQueue> fQueue;
dispatch_semaphore_t fInFlightSemaphore;
MTKView* fMTKView;
sk_sp<SkSurface> fSurface;
};
} // namespace sk_app
#endif