1// Copyright (C) 2020 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QT_EGL_P_H
5#define QT_EGL_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18// q(data/text)stream.h must be included before any header file that defines Status
19#include <QtCore/qdatastream.h>
20#include <QtCore/qtextstream.h>
21#include <QtCore/private/qglobal_p.h>
22
23#ifdef QT_EGL_NO_X11
24# ifndef EGL_NO_X11
25# define EGL_NO_X11
26# endif
27# ifndef MESA_EGL_NO_X11_HEADERS
28# define MESA_EGL_NO_X11_HEADERS // MESA
29# endif
30# if !defined(Q_OS_INTEGRITY)
31# define WIN_INTERFACE_CUSTOM // NV
32# endif // Q_OS_INTEGRITY
33#else // QT_EGL_NO_X11
34// If one has an eglplatform.h with https://github.com/KhronosGroup/EGL-Registry/pull/130
35// that needs USE_X11 to be defined.
36# define USE_X11
37#endif
38
39#ifdef QT_EGL_WAYLAND
40# define WAYLAND // NV
41#endif // QT_EGL_WAYLAND
42
43#include <EGL/egl.h>
44#include <EGL/eglext.h>
45
46#include <stdint.h>
47
48QT_BEGIN_NAMESPACE
49
50namespace QtInternal {
51
52template <class FromType, class ToType>
53struct QtEglConverter
54{
55 static inline ToType convert(FromType v)
56 { return v; }
57};
58
59template <>
60struct QtEglConverter<uint32_t, uintptr_t>
61{
62 static inline uintptr_t convert(uint32_t v)
63 { return v; }
64};
65
66#if QT_POINTER_SIZE > 4
67template <>
68struct QtEglConverter<uintptr_t, uint32_t>
69{
70 static inline uint32_t convert(uintptr_t v)
71 { return uint32_t(v); }
72};
73#endif
74
75template <>
76struct QtEglConverter<uint32_t, void *>
77{
78 static inline void *convert(uint32_t v)
79 { return reinterpret_cast<void *>(uintptr_t(v)); }
80};
81
82template <>
83struct QtEglConverter<void *, uint32_t>
84{
85 static inline uint32_t convert(void *v)
86 { return uintptr_t(v); }
87};
88
89} // QtInternal
90
91template <class ToType, class FromType>
92static inline ToType qt_egl_cast(FromType from)
93{ return QtInternal::QtEglConverter<FromType, ToType>::convert(from); }
94
95QT_END_NAMESPACE
96
97#endif // QT_EGL_P_H
98

source code of qtbase/src/gui/opengl/platform/egl/qt_egl_p.h