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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>
55#include <QtCore/QVector>
56#include <QtCore/QSizeF>
57#include <QtEglSupport/private/qt_egl_p.h>
58
59QT_BEGIN_NAMESPACE
60
61QVector<EGLint> q_createConfigAttributesFromFormat(const QSurfaceFormat &format);
62bool q_reduceConfigAttributes(QVector<EGLint> *configAttributes);
63EGLConfig q_configFromGLFormat(EGLDisplay display, const QSurfaceFormat &format, bool highestPixelFormat = false, int surfaceType = EGL_WINDOW_BIT);
64QSurfaceFormat q_glFormatFromConfig(EGLDisplay display, const EGLConfig config, const QSurfaceFormat &referenceFormat = QSurfaceFormat());
65bool q_hasEglExtension(EGLDisplay display,const char* extensionName);
66void q_printEglConfig(EGLDisplay display, EGLConfig config);
67
68#ifdef Q_OS_UNIX
69QSizeF q_physicalScreenSizeFromFb(int framebufferDevice, const QSize &screenSize = QSize());
70QSize q_screenSizeFromFb(int framebufferDevice);
71int q_screenDepthFromFb(int framebufferDevice);
72qreal q_refreshRateFromFb(int framebufferDevice);
73#endif
74
75class QEglConfigChooser
76{
77public:
78 QEglConfigChooser(EGLDisplay display);
79 virtual ~QEglConfigChooser();
80
81 EGLDisplay display() const { return m_display; }
82
83 void setSurfaceType(EGLint surfaceType) { m_surfaceType = surfaceType; }
84 EGLint surfaceType() const { return m_surfaceType; }
85
86 void setSurfaceFormat(const QSurfaceFormat &format) { m_format = format; }
87 QSurfaceFormat surfaceFormat() const { return m_format; }
88
89 void setIgnoreColorChannels(bool ignore) { m_ignore = ignore; }
90 bool ignoreColorChannels() const { return m_ignore; }
91
92 EGLConfig chooseConfig();
93
94protected:
95 virtual bool filterConfig(EGLConfig config) const;
96
97 QSurfaceFormat m_format;
98 EGLDisplay m_display;
99 EGLint m_surfaceType;
100 bool m_ignore;
101
102 int m_confAttrRed;
103 int m_confAttrGreen;
104 int m_confAttrBlue;
105 int m_confAttrAlpha;
106};
107
108
109QT_END_NAMESPACE
110
111#endif //QEGLCONVENIENCE_H
112

source code of qtbase/src/platformsupport/eglconvenience/qeglconvenience_p.h