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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
From 76c415b586991d978d46a888fb40c631513407dc Mon Sep 17 00:00:00 2001
From: Tom Cooksey <thomas.cooksey@nokia.com>
Date: Fri, 4 Dec 2009 20:48:53 +0100
Subject: [PATCH 0946/1244] Fix WA_TranslucentBackground for QGLWidgets on X11/EGL
Also check for existing QEglContext before creating a new one and
leaking a context.
Reviewed-by: TrustMe
---
src/opengl/qgl_x11egl.cpp | 118 ++++++++++++++++++++++++++++-----------------
1 files changed, 73 insertions(+), 45 deletions(-)
diff --git a/src/opengl/qgl_x11egl.cpp b/src/opengl/qgl_x11egl.cpp
index b51c239..a868e83 100644
--- a/src/opengl/qgl_x11egl.cpp
+++ b/src/opengl/qgl_x11egl.cpp
@@ -63,6 +63,7 @@ void qt_egl_add_platform_config(QEglProperties& props, QPaintDevice *device)
props.setPixelFormat(static_cast<QImage *>(device)->format());
}
+// Chooses the EGL config and creates the EGL context
bool QGLContext::chooseContext(const QGLContext* shareContext)
{
Q_D(QGLContext);
@@ -73,56 +74,74 @@ bool QGLContext::chooseContext(const QGLContext* shareContext)
int devType = device()->devType();
// Get the display and initialize it.
- d->eglContext = new QEglContext();
- d->eglContext->setApi(QEgl::OpenGL);
- if (!d->eglContext->openDisplay(device())) {
- delete d->eglContext;
- d->eglContext = 0;
- return false;
- }
+ if (d->eglContext == 0) {
+ d->eglContext = new QEglContext();
+ d->eglContext->setApi(QEgl::OpenGL);
+ if (!d->eglContext->openDisplay(device())) {
+ delete d->eglContext;
+ d->eglContext = 0;
+ return false;
+ }
- // Construct the configuration we need for this surface.
- QEglProperties configProps;
- qt_egl_set_format(configProps, devType, d->glFormat);
- qt_egl_add_platform_config(configProps, device());
- configProps.setRenderableType(QEgl::OpenGL);
-
- QEgl::PixelFormatMatch matchType = QEgl::BestPixelFormat;
- if (device()->depth() == 16) {
- configProps.setValue(EGL_RED_SIZE, 5);
- configProps.setValue(EGL_GREEN_SIZE, 6);
- configProps.setValue(EGL_BLUE_SIZE, 5);
- configProps.setValue(EGL_ALPHA_SIZE, 0);
- matchType = QEgl::ExactPixelFormat;
- }
- configProps.setRenderableType(QEgl::OpenGL);
+ // Construct the configuration we need for this surface.
+ QEglProperties configProps;
+ qt_egl_set_format(configProps, devType, d->glFormat);
+ qt_egl_add_platform_config(configProps, device());
+ configProps.setRenderableType(QEgl::OpenGL);
+
+#if We_have_an_EGL_library_which_bothers_to_check_EGL_BUFFER_SIZE
+ if (device()->depth() == 16 && configProps.value(EGL_ALPHA_SIZE) <= 0) {
+ qDebug("Setting EGL_BUFFER_SIZE to 16");
+ configProps.setValue(EGL_BUFFER_SIZE, 16);
+ configProps.setValue(EGL_ALPHA_SIZE, 0);
+ }
- // Search for a matching configuration, reducing the complexity
- // each time until we get something that matches.
- if (!d->eglContext->chooseConfig(configProps, matchType)) {
- delete d->eglContext;
- d->eglContext = 0;
- return false;
- }
+ if (!d->eglContext->chooseConfig(configProps, QEgl::BestPixelFormat)) {
+ delete d->eglContext;
+ d->eglContext = 0;
+ return false;
+ }
+#else
+ QEgl::PixelFormatMatch matchType = QEgl::BestPixelFormat;
+ if ((device()->depth() == 16) && configProps.value(EGL_ALPHA_SIZE) == 0) {
+ configProps.setValue(EGL_RED_SIZE, 5);
+ configProps.setValue(EGL_GREEN_SIZE, 6);
+ configProps.setValue(EGL_BLUE_SIZE, 5);
+ configProps.setValue(EGL_ALPHA_SIZE, 0);
+ matchType = QEgl::ExactPixelFormat;
+ }
- // Inform the higher layers about the actual format properties.
- qt_egl_update_format(*(d->eglContext), d->glFormat);
+ // Search for a matching configuration, reducing the complexity
+ // each time until we get something that matches.
+ if (!d->eglContext->chooseConfig(configProps, matchType)) {
+ delete d->eglContext;
+ d->eglContext = 0;
+ return false;
+ }
+#endif
- // Create a new context for the configuration.
- if (!d->eglContext->createContext
- (shareContext ? shareContext->d_func()->eglContext : 0)) {
- delete d->eglContext;
- d->eglContext = 0;
- return false;
- }
- d->sharing = d->eglContext->isSharing();
- if (d->sharing && shareContext)
- const_cast<QGLContext *>(shareContext)->d_func()->sharing = true;
+// qDebug("QGLContext::chooseContext() - using EGL config %d:", d->eglContext->config());
+// qDebug() << QEglProperties(d->eglContext->config()).toString();
+
+ // Create a new context for the configuration.
+ if (!d->eglContext->createContext
+ (shareContext ? shareContext->d_func()->eglContext : 0)) {
+ delete d->eglContext;
+ d->eglContext = 0;
+ return false;
+ }
+ d->sharing = d->eglContext->isSharing();
+ if (d->sharing && shareContext)
+ const_cast<QGLContext *>(shareContext)->d_func()->sharing = true;
#if defined(EGL_VERSION_1_1)
- if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget)
- eglSwapInterval(d->eglContext->display(), d->glFormat.swapInterval());
+ if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget)
+ eglSwapInterval(d->eglContext->display(), d->glFormat.swapInterval());
#endif
+ }
+
+ // Inform the higher layers about the actual format properties.
+ qt_egl_update_format(*(d->eglContext), d->glFormat);
return true;
}
@@ -160,6 +179,9 @@ bool qt_egl_setup_x11_visual(XVisualInfo &vi, EGLDisplay display, EGLConfig conf
memset(&vi, 0, sizeof(XVisualInfo));
+ EGLint eglConfigColorSize;
+ eglGetConfigAttrib(display, config, EGL_BUFFER_SIZE, &eglConfigColorSize);
+
// Check to see if EGL is suggesting an appropriate visual id:
EGLint nativeVisualId;
eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &nativeVisualId);
@@ -189,8 +211,12 @@ bool qt_egl_setup_x11_visual(XVisualInfo &vi, EGLDisplay display, EGLConfig conf
} else
#endif
{
-// qDebug("Using opaque X Visual ID (%d) provided by EGL", (int)vi.visualid);
- vi = *chosenVisualInfo;
+ if (eglConfigColorSize == chosenVisualInfo->depth) {
+// qDebug("Using opaque X Visual ID (%d) provided by EGL", (int)vi.visualid);
+ vi = *chosenVisualInfo;
+ } else
+ qWarning("Warning: EGL suggested using X visual ID %d (%d bpp) for config %d (%d bpp), but the depths do not match!",
+ nativeVisualId, chosenVisualInfo->depth, (int)config, eglConfigColorSize);
}
XFree(chosenVisualInfo);
}
@@ -300,6 +326,8 @@ void QGLWidget::setContext(QGLContext *context, const QGLContext* shareContext,
bool createFailed = false;
if (!d->glcx->isValid()) {
+ // Create the QGLContext here, which in turn chooses the EGL config
+ // and creates the EGL context:
if (!d->glcx->create(shareContext ? shareContext : oldcx))
createFailed = true;
}
--
1.6.5
|
