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39
40#ifndef QEGLCONVENIENCE_H
41#define QEGLCONVENIENCE_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtGui/qsurfaceformat.h>
55#include <QtCore/qlist.h>
56#include <QtCore/qsize.h>
57
58#include <QtGui/private/qt_egl_p.h>
59
60
61QT_BEGIN_NAMESPACE
62
63Q_GUI_EXPORT QList<EGLint> q_createConfigAttributesFromFormat(const QSurfaceFormat &format);
64
65Q_GUI_EXPORT bool q_reduceConfigAttributes(QList<EGLint> *configAttributes);
66
67Q_GUI_EXPORT EGLConfig q_configFromGLFormat(EGLDisplay display,
68 const QSurfaceFormat &format,
69 bool highestPixelFormat = false,
70 int surfaceType = EGL_WINDOW_BIT);
71
72Q_GUI_EXPORT QSurfaceFormat q_glFormatFromConfig(EGLDisplay display, const EGLConfig config,
73 const QSurfaceFormat &referenceFormat = {});
74
75Q_GUI_EXPORT bool q_hasEglExtension(EGLDisplay display,const char* extensionName);
76
77Q_GUI_EXPORT void q_printEglConfig(EGLDisplay display, EGLConfig config);
78
79#ifdef Q_OS_UNIX
80Q_GUI_EXPORT QSizeF q_physicalScreenSizeFromFb(int framebufferDevice,
81 const QSize &screenSize = {});
82
83Q_GUI_EXPORT QSize q_screenSizeFromFb(int framebufferDevice);
84
85Q_GUI_EXPORT int q_screenDepthFromFb(int framebufferDevice);
86
87Q_GUI_EXPORT qreal q_refreshRateFromFb(int framebufferDevice);
88
89#endif
90
91class Q_GUI_EXPORT QEglConfigChooser
92{
93public:
94 QEglConfigChooser(EGLDisplay display);
95 virtual ~QEglConfigChooser();
96
97 EGLDisplay display() const { return m_display; }
98
99 void setSurfaceType(EGLint surfaceType) { m_surfaceType = surfaceType; }
100 EGLint surfaceType() const { return m_surfaceType; }
101
102 void setSurfaceFormat(const QSurfaceFormat &format) { m_format = format; }
103 QSurfaceFormat surfaceFormat() const { return m_format; }
104
105 void setIgnoreColorChannels(bool ignore) { m_ignore = ignore; }
106 bool ignoreColorChannels() const { return m_ignore; }
107
108 EGLConfig chooseConfig();
109
110protected:
111 virtual bool filterConfig(EGLConfig config) const;
112
113 QSurfaceFormat m_format;
114 EGLDisplay m_display;
115 EGLint m_surfaceType;
116 bool m_ignore;
117
118 int m_confAttrRed;
119 int m_confAttrGreen;
120 int m_confAttrBlue;
121 int m_confAttrAlpha;
122};
123
124
125QT_END_NAMESPACE
126
127#endif //QEGLCONVENIENCE_H
128