1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef VULKANMANAGER_H
#define VULKANMANAGER_H
#include <SkSurface.h>
#include <vk/GrVkBackendContext.h>
#include <vulkan/vulkan.h>
namespace android {
namespace uirenderer {
namespace renderthread {
class RenderThread;
class VulkanSurface {
public:
VulkanSurface() {}
sk_sp<SkSurface> getBackBufferSurface() { return mBackbuffer; }
private:
friend class VulkanManager;
struct BackbufferInfo {
uint32_t mImageIndex; // image this is associated with
VkSemaphore mAcquireSemaphore; // we signal on this for acquisition of image
VkSemaphore mRenderSemaphore; // we wait on this for rendering to be done
VkCommandBuffer mTransitionCmdBuffers[2]; // to transition layout between present and render
// We use these fences to make sure the above Command buffers have finished their work
// before attempting to reuse them or destroy them.
VkFence mUsageFences[2];
};
struct ImageInfo {
VkImageLayout mImageLayout = VK_IMAGE_LAYOUT_UNDEFINED;
sk_sp<SkSurface> mSurface;
uint16_t mLastUsed = 0;
bool mInvalid = true;
};
sk_sp<SkSurface> mBackbuffer;
VkSurfaceKHR mVkSurface = VK_NULL_HANDLE;
VkSwapchainKHR mSwapchain = VK_NULL_HANDLE;
BackbufferInfo* mBackbuffers;
uint32_t mCurrentBackbufferIndex;
uint32_t mImageCount;
VkImage* mImages;
ImageInfo* mImageInfos;
uint16_t mCurrentTime = 0;
};
// This class contains the shared global Vulkan objects, such as VkInstance, VkDevice and VkQueue,
// which are re-used by CanvasContext. This class is created once and should be used by all vulkan
// windowing contexts. The VulkanManager must be initialized before use.
class VulkanManager {
public:
// Sets up the vulkan context that is shared amonst all clients of the VulkanManager. This must
// be call once before use of the VulkanManager. Multiple calls after the first will simiply
// return.
void initialize();
// Quick check to see if the VulkanManager has been initialized.
bool hasVkContext() { return mBackendContext.get() != nullptr; }
// Given a window this creates a new VkSurfaceKHR and VkSwapchain and stores them inside a new
// VulkanSurface object which is returned.
VulkanSurface* createSurface(ANativeWindow* window);
// Destroy the VulkanSurface and all associated vulkan objects.
void destroySurface(VulkanSurface* surface);
// Cleans up all the global state in the VulkanManger.
void destroy();
// No work is needed to make a VulkanSurface current, and all functions require that a
// VulkanSurface is passed into them so we just return true here.
bool isCurrent(VulkanSurface* surface) { return true; }
int getAge(VulkanSurface* surface);
// Returns an SkSurface which wraps the next image returned from vkAcquireNextImageKHR. It also
// will transition the VkImage from a present layout to color attachment so that it can be used
// by the client for drawing.
SkSurface* getBackbufferSurface(VulkanSurface* surface);
// Presents the current VkImage.
void swapBuffers(VulkanSurface* surface);
private:
friend class RenderThread;
explicit VulkanManager(RenderThread& thread);
~VulkanManager() { destroy(); }
void destroyBuffers(VulkanSurface* surface);
bool createSwapchain(VulkanSurface* surface);
void createBuffers(VulkanSurface* surface, VkFormat format, VkExtent2D extent);
VulkanSurface::BackbufferInfo* getAvailableBackbuffer(VulkanSurface* surface);
// 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; }
operator FNPTR_TYPE() const { return fPtr; }
private:
FNPTR_TYPE fPtr;
};
// WSI interface functions
VkPtr<PFN_vkCreateAndroidSurfaceKHR> mCreateAndroidSurfaceKHR;
VkPtr<PFN_vkDestroySurfaceKHR> mDestroySurfaceKHR;
VkPtr<PFN_vkGetPhysicalDeviceSurfaceSupportKHR> mGetPhysicalDeviceSurfaceSupportKHR;
VkPtr<PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR> mGetPhysicalDeviceSurfaceCapabilitiesKHR;
VkPtr<PFN_vkGetPhysicalDeviceSurfaceFormatsKHR> mGetPhysicalDeviceSurfaceFormatsKHR;
VkPtr<PFN_vkGetPhysicalDeviceSurfacePresentModesKHR> mGetPhysicalDeviceSurfacePresentModesKHR;
VkPtr<PFN_vkCreateSwapchainKHR> mCreateSwapchainKHR;
VkPtr<PFN_vkDestroySwapchainKHR> mDestroySwapchainKHR;
VkPtr<PFN_vkGetSwapchainImagesKHR> mGetSwapchainImagesKHR;
VkPtr<PFN_vkAcquireNextImageKHR> mAcquireNextImageKHR;
VkPtr<PFN_vkQueuePresentKHR> mQueuePresentKHR;
VkPtr<PFN_vkCreateSharedSwapchainsKHR> mCreateSharedSwapchainsKHR;
// Additional vulkan functions
VkPtr<PFN_vkCreateCommandPool> mCreateCommandPool;
VkPtr<PFN_vkDestroyCommandPool> mDestroyCommandPool;
VkPtr<PFN_vkAllocateCommandBuffers> mAllocateCommandBuffers;
VkPtr<PFN_vkFreeCommandBuffers> mFreeCommandBuffers;
VkPtr<PFN_vkResetCommandBuffer> mResetCommandBuffer;
VkPtr<PFN_vkBeginCommandBuffer> mBeginCommandBuffer;
VkPtr<PFN_vkEndCommandBuffer> mEndCommandBuffer;
VkPtr<PFN_vkCmdPipelineBarrier> mCmdPipelineBarrier;
VkPtr<PFN_vkGetDeviceQueue> mGetDeviceQueue;
VkPtr<PFN_vkQueueSubmit> mQueueSubmit;
VkPtr<PFN_vkQueueWaitIdle> mQueueWaitIdle;
VkPtr<PFN_vkDeviceWaitIdle> mDeviceWaitIdle;
VkPtr<PFN_vkCreateSemaphore> mCreateSemaphore;
VkPtr<PFN_vkDestroySemaphore> mDestroySemaphore;
VkPtr<PFN_vkCreateFence> mCreateFence;
VkPtr<PFN_vkDestroyFence> mDestroyFence;
VkPtr<PFN_vkWaitForFences> mWaitForFences;
VkPtr<PFN_vkResetFences> mResetFences;
RenderThread& mRenderThread;
sk_sp<const GrVkBackendContext> mBackendContext;
uint32_t mPresentQueueIndex;
VkQueue mPresentQueue = VK_NULL_HANDLE;
VkCommandPool mCommandPool = VK_NULL_HANDLE;
enum class SwapBehavior {
Discard,
BufferAge,
};
SwapBehavior mSwapBehavior = SwapBehavior::Discard;
};
} /* namespace renderthread */
} /* namespace uirenderer */
} /* namespace android */
#endif /* VULKANMANAGER_H */
|
