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39
40#include <private/qvulkanfunctions_p.h>
41
42QT_BEGIN_NAMESPACE
43
44/*!
45 \class QVulkanFunctions
46 \since 5.10
47 \ingroup painting-3D
48 \inmodule QtGui
49 \wrapper
50
51 \brief The QVulkanFunctions class provides cross-platform access to the
52 instance level core Vulkan 1.0 API.
53
54 Qt and Qt applications do not link to any Vulkan libraries by default.
55 Instead, all functions are resolved dynamically at run time. Each
56 QVulkanInstance provides a QVulkanFunctions object retrievable via
57 QVulkanInstance::functions(). This does not contain device level functions
58 in order to avoid the potential overhead of an internal dispatching.
59 Instead, functions that rely on a device, or a dispatchable child object of
60 a device, are exposed via QVulkanDeviceFunctions and
61 QVulkanInstance::deviceFunctions(). QVulkanFunctions and
62 QVulkanDeviceFunctions together provides access to the full core Vulkan
63 API, excluding any extensions.
64
65 \note QVulkanFunctions instances cannot be constructed directly.
66
67 The typical usage is the following:
68
69 \snippet code/src_gui_vulkan_qvulkanfunctions.cpp 0
70
71 \note Windowing system interface (WSI) specifics and extensions are
72 excluded. This class only covers core Vulkan commands, with the exception
73 of instance creation, destruction, and function resolving, since such
74 functionality is covered by QVulkanInstance itself.
75
76 To access additional functions, applications can use
77 QVulkanInstance::getInstanceProcAddr() and vkGetDeviceProcAddr().
78 Applications can also decide to link to a Vulkan library directly, as
79 platforms with an appropriate loader will typically export function symbols
80 for the core commands. See
81 \l{https://www.khronos.org/registry/vulkan/specs/1.0/man/html/vkGetInstanceProcAddr.html}{the
82 man page for vkGetInstanceProcAddr} for more information.
83
84 \sa QVulkanInstance, QVulkanDeviceFunctions, QWindow::setVulkanInstance(), QWindow::setSurfaceType()
85*/
86
87/*!
88 \class QVulkanDeviceFunctions
89 \since 5.10
90 \ingroup painting-3D
91 \inmodule QtGui
92 \wrapper
93
94 \brief The QVulkanDeviceFunctions class provides cross-platform access to
95 the device level core Vulkan 1.0 API.
96
97 Qt and Qt applications do not link to any Vulkan libraries by default.
98 Instead, all functions are resolved dynamically at run time. Each
99 QVulkanInstance provides a QVulkanFunctions object retrievable via
100 QVulkanInstance::functions(). This does not contain device level functions
101 in order to avoid the potential overhead of an internal dispatching.
102 Instead, functions that rely on a device, or a dispatchable child object of
103 a device, are exposed via QVulkanDeviceFunctions and
104 QVulkanInstance::deviceFunctions(). QVulkanFunctions and
105 QVulkanDeviceFunctions together provides access to the full core Vulkan
106 API, excluding any extensions.
107
108 \note QVulkanDeviceFunctions instances cannot be constructed directly.
109
110 The typical usage is the following:
111
112 \snippet code/src_gui_vulkan_qvulkanfunctions.cpp 1
113
114 The QVulkanDeviceFunctions object specific to the provided VkDevice is
115 created when QVulkanInstance::deviceFunctions() is first called with the
116 device in question. The object is then cached internally.
117
118 To access additional functions, applications can use
119 QVulkanInstance::getInstanceProcAddr() and vkGetDeviceProcAddr().
120 Applications can also decide to link to a Vulkan library directly, as many
121 implementations export function symbols for the core commands. See
122 \l{https://www.khronos.org/registry/vulkan/specs/1.0/man/html/vkGetInstanceProcAddr.html}{the
123 man page for vkGetInstanceProcAddr} for more information.
124
125 \sa QVulkanInstance, QVulkanFunctions, QWindow::setVulkanInstance(), QWindow::setSurfaceType()
126*/
127
128/*
129 Constructs a new QVulkanFunctions for \a inst.
130 \internal
131 */
132QVulkanFunctions::QVulkanFunctions(QVulkanInstance *inst)
133 : d_ptr(new QVulkanFunctionsPrivate(inst))
134{
135}
136
137/*
138 Destructor.
139 */
140QVulkanFunctions::~QVulkanFunctions()
141{
142}
143
144/*
145 Constructs a new QVulkanDeviceFunctions for \a inst and the given \a device.
146 \internal
147 */
148QVulkanDeviceFunctions::QVulkanDeviceFunctions(QVulkanInstance *inst, VkDevice device)
149 : d_ptr(new QVulkanDeviceFunctionsPrivate(inst, device))
150{
151}
152
153/*
154 Destructor.
155 */
156QVulkanDeviceFunctions::~QVulkanDeviceFunctions()
157{
158}
159
160QT_END_NAMESPACE
161

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