1 /* 2 * Copyright 2021 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 #ifndef GraphiteMetalWindowContext_DEFINED 8 #define GraphiteMetalWindowContext_DEFINED 9 10 #include "include/core/SkRefCnt.h" 11 #include "include/ports/SkCFObject.h" 12 13 #include "tools/sk_app/WindowContext.h" 14 15 #import <Metal/Metal.h> 16 #import <QuartzCore/CAMetalLayer.h> 17 18 class SkSurface; 19 20 namespace sk_app { 21 22 class GraphiteMetalWindowContext : public WindowContext { 23 public: 24 sk_sp<SkSurface> getBackbufferSurface() override; 25 isValid()26 bool isValid() override { return fValid; } 27 28 void swapBuffers() override; 29 30 void setDisplayParams(const DisplayParams& params) override; 31 32 void activate(bool isActive) override; 33 34 protected: 35 GraphiteMetalWindowContext(const DisplayParams&); 36 // This should be called by subclass constructor. It is also called when window/display 37 // parameters change. This will in turn call onInitializeContext(). 38 void initializeContext(); 39 virtual bool onInitializeContext() = 0; 40 41 // This should be called by subclass destructor. It is also called when window/display 42 // parameters change prior to initializing a new Metal context. This will in turn call 43 // onDestroyContext(). 44 void destroyContext(); 45 virtual void onDestroyContext() = 0; 46 47 bool fValid; 48 sk_cfp<id<MTLDevice>> fDevice; 49 sk_cfp<id<MTLCommandQueue>> fQueue; 50 CAMetalLayer* fMetalLayer; 51 CFTypeRef fDrawableHandle; 52 }; 53 54 } // namespace sk_app 55 56 #endif 57