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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
// vk-device-queue.cpp
#include "vk-device-queue.h"
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
namespace gfx {
using namespace Slang;
VulkanDeviceQueue::~VulkanDeviceQueue()
{
destroy();
}
void VulkanDeviceQueue::destroy()
{
if (m_api)
{
for (int i = 0; i < int(EventType::CountOf); ++i)
{
m_api->vkDestroySemaphore(m_api->m_device, m_semaphores[i], nullptr);
}
for (int i = 0; i < m_numCommandBuffers; i++)
{
m_api->vkFreeCommandBuffers(m_api->m_device, m_commandPools[i], 1, &m_commandBuffers[i]);
m_api->vkDestroyFence(m_api->m_device, m_fences[i].fence, nullptr);
m_api->vkDestroyCommandPool(m_api->m_device, m_commandPools[i], nullptr);
m_descSetAllocator[i].close();
}
m_api = nullptr;
}
}
SlangResult VulkanDeviceQueue::init(const VulkanApi& api, VkQueue queue, int queueIndex)
{
assert(m_api == nullptr);
for (int i = 0; i < int(EventType::CountOf); ++i)
{
m_semaphores[i] = VK_NULL_HANDLE;
m_currentSemaphores[i] = VK_NULL_HANDLE;
}
m_numCommandBuffers = kMaxCommandBuffers;
m_queueIndex = queueIndex;
m_queue = queue;
for (int i = 0; i < m_numCommandBuffers; i++)
{
VkCommandPoolCreateInfo poolCreateInfo = {};
poolCreateInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
poolCreateInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
poolCreateInfo.queueFamilyIndex = queueIndex;
api.vkCreateCommandPool(api.m_device, &poolCreateInfo, nullptr, &m_commandPools[i]);
VkCommandBufferAllocateInfo commandInfo = {};
commandInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
commandInfo.commandPool = m_commandPools[i];
commandInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
commandInfo.commandBufferCount = 1;
VkFenceCreateInfo fenceCreateInfo = {};
fenceCreateInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceCreateInfo.flags = 0; // VK_FENCE_CREATE_SIGNALED_BIT;
Fence& fence = m_fences[i];
api.vkAllocateCommandBuffers(api.m_device, &commandInfo, &m_commandBuffers[i]);
api.vkCreateFence(api.m_device, &fenceCreateInfo, nullptr, &fence.fence);
fence.active = false;
fence.value = 0;
m_descSetAllocator[i].m_api = &api;
}
VkSemaphoreCreateInfo semaphoreCreateInfo = {};
semaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
for (int i = 0; i < int(EventType::CountOf); ++i)
{
api.vkCreateSemaphore(api.m_device, &semaphoreCreateInfo, nullptr, &m_semaphores[i]);
}
// Set the api - also marks that the queue appears to be valid
m_api = &api;
// Second step of flush to prime command buffer
flushStepB();
return SLANG_OK;
}
void VulkanDeviceQueue::flushStepA()
{
m_api->vkEndCommandBuffer(m_commandBuffer);
VkPipelineStageFlags stageFlags = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
VkSubmitInfo submitInfo = {};
submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
// Wait semaphores
if (isCurrent(EventType::BeginFrame))
{
submitInfo.waitSemaphoreCount = 1;
submitInfo.pWaitSemaphores = &m_currentSemaphores[int(EventType::BeginFrame)];
}
submitInfo.pWaitDstStageMask = &stageFlags;
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &m_commandBuffer;
// Signal semaphores
if (isCurrent(EventType::EndFrame))
{
submitInfo.signalSemaphoreCount = 1;
submitInfo.pSignalSemaphores = &m_currentSemaphores[int(EventType::EndFrame)];
}
Fence& fence = m_fences[m_commandBufferIndex];
m_api->vkQueueSubmit(m_queue, 1, &submitInfo, fence.fence);
// mark signaled fence value
fence.value = m_nextFenceValue;
fence.active = true;
// increment fence value
m_nextFenceValue++;
// No longer waiting on this semaphore
makeCompleted(EventType::BeginFrame);
makeCompleted(EventType::EndFrame);
}
void VulkanDeviceQueue::_updateFenceAtIndex( int fenceIndex, bool blocking)
{
Fence& fence = m_fences[fenceIndex];
if (fence.active)
{
uint64_t timeout = blocking ? ~uint64_t(0) : 0;
if (VK_SUCCESS == m_api->vkWaitForFences(m_api->m_device, 1, &fence.fence, VK_TRUE, timeout))
{
m_api->vkResetFences(m_api->m_device, 1, &fence.fence);
fence.active = false;
if (fence.value > m_lastFenceCompleted)
{
m_lastFenceCompleted = fence.value;
}
}
}
}
void VulkanDeviceQueue::flushStepB()
{
m_commandBufferIndex = (m_commandBufferIndex + 1) % m_numCommandBuffers;
m_commandBuffer = m_commandBuffers[m_commandBufferIndex];
m_commandPool = m_commandPools[m_commandBufferIndex];
// non-blocking update of fence values
for (int i = 0; i < m_numCommandBuffers; ++i)
{
_updateFenceAtIndex(i, false);
}
// blocking update of fence values
_updateFenceAtIndex(m_commandBufferIndex, true);
m_descSetAllocator[m_commandBufferIndex].reset();
m_api->vkResetCommandPool(m_api->m_device, m_commandPool, 0);
VkCommandBufferBeginInfo beginInfo = {};
beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
beginInfo.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
m_api->vkBeginCommandBuffer(m_commandBuffer, &beginInfo);
}
void VulkanDeviceQueue::flush()
{
flushStepA();
flushStepB();
}
void VulkanDeviceQueue::flushAndWait()
{
flush();
waitForIdle();
}
VkSemaphore VulkanDeviceQueue::getSemaphore(EventType eventType)
{
return m_semaphores[int(eventType)];
}
VkSemaphore VulkanDeviceQueue::makeCurrent(EventType eventType)
{
assert(!isCurrent(eventType));
VkSemaphore semaphore = m_semaphores[int(eventType)];
m_currentSemaphores[int(eventType)] = semaphore;
return semaphore;
}
void VulkanDeviceQueue::makeCompleted(EventType eventType)
{
m_currentSemaphores[int(eventType)] = VK_NULL_HANDLE;
}
} // renderer_test
|
