blob: 7f9abb638e1ec6c9b0041f41d3c943d7fed7ef6a (
plain)
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
|
// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QGuiApplication>
#include <QVulkanDeviceFunctions>
#include <QVulkanWindow>
namespace src_gui_vulkan_qvulkanwindow {
VkCommandBuffer commandBuffer;
const VkRenderPassBeginInfo *renderPassBegin = nullptr;
VkSubpassContents contents;
//! [0]
class VulkanRenderer : public QVulkanWindowRenderer
{
public:
VulkanRenderer(QVulkanWindow *w) : m_window(w), m_devFuncs(nullptr) { }
void initResources() override
{
m_devFuncs = m_window->vulkanInstance()->deviceFunctions(m_window->device());
// ..
}
void initSwapChainResources() override { /* ... */ }
void releaseSwapChainResources() override { /* ... */ }
void releaseResources() override { /* ... */ }
void startNextFrame() override
{
VkCommandBuffer cmdBuf = m_window->currentCommandBuffer();
// ...
m_devFuncs->vkCmdBeginRenderPass(commandBuffer, renderPassBegin, contents);
// ...
m_window->frameReady();
}
private:
QVulkanWindow *m_window;
QVulkanDeviceFunctions *m_devFuncs;
};
class VulkanWindow : public QVulkanWindow
{
public:
QVulkanWindowRenderer *createRenderer() override {
return new VulkanRenderer(this);
}
};
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
QVulkanInstance inst;
// enable the standard validation layers, when available
inst.setLayers({ "VK_LAYER_KHRONOS_validation" });
if (!inst.create())
qFatal("Failed to create Vulkan instance: %d", inst.errorCode());
VulkanWindow w;
w.setVulkanInstance(&inst);
w.showMaximized();
return app.exec();
}
//! [0]
//! [1]
class Renderer {
void startNextFrame();
// ...
VkDescriptorBufferInfo m_uniformBufInfo[QVulkanWindow::MAX_CONCURRENT_FRAME_COUNT];
QVulkanWindow *m_window = nullptr;
};
void Renderer::startNextFrame()
{
VkDescriptorBufferInfo &uniformBufInfo(m_uniformBufInfo[m_window->currentFrame()]);
// ...
}
//! [1]
} // src_gui_vulkan_qvulkanwindow
namespace src_gui_vulkan_qvulkanwindow2 {
//! [2]
class Renderer {
void startNextFrame();
// ...
VkDescriptorBufferInfo m_uniformBufInfo[QVulkanWindow::MAX_CONCURRENT_FRAME_COUNT];
QVulkanWindow *m_window = nullptr;
};
void Renderer::startNextFrame()
{
const int count = m_window->concurrentFrameCount();
// for (int i = 0; i < count; ++i)
// m_uniformBufInfo[i] = ...
// ...
}
//! [2]
} // src_gui_vulkan_qvulkanwindow2
|
