1 /* 2 * Copyright 2019 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 MetalWindowContext_DEFINED 8 #define MetalWindowContext_DEFINED 9 10 #include "include/core/SkRefCnt.h" 11 #include "include/core/SkSurface.h" 12 #include "include/ports/SkCFObject.h" 13 #include "src/gpu/ganesh/mtl/GrMtlTypesPriv.h" 14 15 #include "tools/window/WindowContext.h" 16 17 #import <Metal/Metal.h> 18 #import <QuartzCore/CAMetalLayer.h> 19 20 namespace skwindow::internal { 21 22 class MetalWindowContext : public WindowContext { 23 public: 24 sk_sp<SkSurface> getBackbufferSurface() override; 25 isValid()26 bool isValid() override { return fValid; } 27 28 void setDisplayParams(std::unique_ptr<const DisplayParams> params) override; 29 30 protected: 31 MetalWindowContext(std::unique_ptr<const DisplayParams>); 32 // This should be called by subclass constructor. It is also called when window/display 33 // parameters change. This will in turn call onInitializeContext(). 34 void initializeContext(); 35 virtual bool onInitializeContext() = 0; 36 37 // This should be called by subclass destructor. It is also called when window/display 38 // parameters change prior to initializing a new Metal context. This will in turn call 39 // onDestroyContext(). 40 void destroyContext(); 41 virtual void onDestroyContext() = 0; 42 43 void onSwapBuffers() override; 44 45 bool fValid; 46 sk_cfp<id<MTLDevice>> fDevice; 47 sk_cfp<id<MTLCommandQueue>> fQueue; 48 CAMetalLayer* fMetalLayer; 49 GrMTLHandle fDrawableHandle; 50 }; 51 52 } // namespace skwindow::internal 53 54 #endif 55