1 /*
2  * Copyright 2016 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 
8 #ifndef GrVkCopyManager_DEFINED
9 #define GrVkCopyManager_DEFINED
10 
11 #include "GrVkDescriptorSetManager.h"
12 
13 #include "vk/GrVkDefines.h"
14 
15 class GrSurface;
16 class GrVkCopyPipeline;
17 class GrVkGpu;
18 class GrVkUniformBuffer;
19 class GrVkVertexBuffer;
20 struct SkIPoint;
21 struct SkIRect;
22 
23 class GrVkCopyManager {
24 public:
GrVkCopyManager()25     GrVkCopyManager()
26         : fVertShaderModule(VK_NULL_HANDLE)
27         , fFragShaderModule(VK_NULL_HANDLE)
28         , fPipelineLayout(VK_NULL_HANDLE)
29         , fUniformBuffer(nullptr) {}
30 
31     bool copySurfaceAsDraw(GrVkGpu* gpu,
32                            GrSurface* dst,
33                            GrSurface* src,
34                            const SkIRect& srcRect,
35                            const SkIPoint& dstPoint);
36 
37     void destroyResources(GrVkGpu* gpu);
38     void abandonResources();
39 
40 private:
41     bool createCopyProgram(GrVkGpu* gpu);
42 
43     // Everything below is only created once and shared by all copy draws/pipelines
44     VkShaderModule fVertShaderModule;
45     VkShaderModule fFragShaderModule;
46     VkPipelineShaderStageCreateInfo fShaderStageInfo[2];
47 
48     GrVkDescriptorSetManager::Handle fSamplerDSHandle;
49     VkPipelineLayout fPipelineLayout;
50 
51     SkAutoTUnref<GrVkVertexBuffer> fVertexBuffer;
52     GrVkUniformBuffer*             fUniformBuffer;
53 };
54 
55 #endif
56