SW backend for viewer on Windows

tools/viewer/sk_app/VulkanWindowContext.h

 
 /*
  * 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 VulkanWindowContext_DEFINED
 #define VulkanWindowContext_DEFINED
 
@@ skipping 10 matching lines @@
 
 class VulkanWindowContext : public WindowContext {
 public:
     ~VulkanWindowContext() override;
 
     sk_sp<SkSurface> getBackbufferSurface() override;
     void swapBuffers() override;
 
     bool isValid() override { return SkToBool(fBackendContext.get()); }
 
-    void resize(uint32_t w, uint32_t h) override {
+    void resize(int w, int h) override {
         this->createSwapchain(w, h, fDisplayParams);
     }
 
     void setDisplayParams(const DisplayParams& params) override {
         this->createSwapchain(fWidth, fHeight, params);
     }
 
     GrBackendContext getBackendContext() override { 
         return (GrBackendContext) fBackendContext.get(); 
     }
@@ skipping 10 matching lines @@
 
     struct BackbufferInfo {
         uint32_t        fImageIndex;          // image this is associated with
         VkSemaphore     fAcquireSemaphore;    // we signal on this for acquisition of image
         VkSemaphore     fRenderSemaphore;     // we wait on this for rendering to be done
         VkCommandBuffer fTransitionCmdBuffers[2]; // to transition layout between present and render
         VkFence         fUsageFences[2];      // used to ensure this data is no longer used on GPU
     };
 
     BackbufferInfo* getAvailableBackbuffer();
-    bool createSwapchain(uint32_t width, uint32_t height, const DisplayParams& params);
+    bool createSwapchain(int width, int height, const DisplayParams& params);
     void createBuffers(VkFormat format);
     void destroyBuffers();
 
     SkAutoTUnref<const GrVkBackendContext> fBackendContext;
 
     // simple wrapper class that exists only to initialize a pointer to NULL
     template <typename FNPTR_TYPE> class VkPtr {
     public:
         VkPtr() : fPtr(NULL) {}
         VkPtr operator=(FNPTR_TYPE ptr) { fPtr = ptr; return *this; }
@@ skipping 29 matching lines @@
     VkCommandPool          fCommandPool;
     BackbufferInfo*        fBackbuffers;
     uint32_t               fCurrentBackbufferIndex;
 };
 
 }   // namespace sk_app
 
 #endif // SK_VULKAN
 
 #endif