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/*
* 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 "include/core/SkRefCnt.h"
#include "include/core/SkSurface.h"
#include "include/ports/SkCFObject.h"
#include "tools/sk_app/WindowContext.h"
#import <Metal/Metal.h>
#import <QuartzCore/CAMetalLayer.h>
namespace sk_app {
class MetalWindowContext : public WindowContext {
public:
sk_sp<SkSurface> getBackbufferSurface() override;
bool isValid() override { return fValid; }
void swapBuffers() override;
void setDisplayParams(const DisplayParams& params) override;
void activate(bool isActive) override;
protected:
static NSURL* CacheURL();
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 Metal context. This will in turn call
// onDestroyContext().
void destroyContext();
virtual void onDestroyContext() = 0;
bool fValid;
sk_cfp<id<MTLDevice>> fDevice;
sk_cfp<id<MTLCommandQueue>> fQueue;
CAMetalLayer* fMetalLayer;
GrMTLHandle fDrawableHandle;
#if GR_METAL_SDK_VERSION >= 230
// wrapping this in sk_cfp throws up an availability warning, so we'll track lifetime manually
id<MTLBinaryArchive> fPipelineArchive SK_API_AVAILABLE(macos(11.0), ios(14.0));
#endif
};
} // namespace sk_app
#endif