QPlatformOpenGLContext *QEglFSIntegration::createPlatformOpenGLContext(QOpenGLContext *context) const
{
QSurfaceFormat adjustedFormat = mHwc->surfaceFormatFor(context->format());
EGLConfig config = chooseConfig(mDisplay, adjustedFormat);
return new QEglFSContext(mHwc, adjustedFormat, &config, context->shareHandle(), mDisplay);
}
EGLConfig QEgl::defaultConfig(int devType, API api, ConfigOptions options)
{
if ( (devType != QInternal::Pixmap) && ((options & Renderable) == 0))
qWarning("QEgl::defaultConfig() - Only configs for pixmaps make sense to be read-only!");
EGLConfig* targetConfig = 0;
static EGLConfig defaultVGConfigs[] = {
QEGL_NO_CONFIG, // 0 Window Renderable Translucent
QEGL_NO_CONFIG, // 1 Window Renderable Opaque
QEGL_NO_CONFIG, // 2 Pixmap Renderable Translucent
QEGL_NO_CONFIG, // 3 Pixmap Renderable Opaque
QEGL_NO_CONFIG, // 4 Pixmap ReadOnly Translucent
QEGL_NO_CONFIG // 5 Pixmap ReadOnly Opaque
};
if (api == OpenVG) {
if (devType == QInternal::Widget) {
if (options & Translucent)
targetConfig = &(defaultVGConfigs[0]);
else
targetConfig = &(defaultVGConfigs[1]);
} else if (devType == QInternal::Pixmap) {
if (options & Renderable) {
if (options & Translucent)
targetConfig = &(defaultVGConfigs[2]);
else // Opaque
targetConfig = &(defaultVGConfigs[3]);
} else { // Read-only
if (options & Translucent)
targetConfig = &(defaultVGConfigs[4]);
else // Opaque
targetConfig = &(defaultVGConfigs[5]);
}
}
}
static EGLConfig defaultGLConfigs[] = {
QEGL_NO_CONFIG, // 0 Window Renderable Translucent
QEGL_NO_CONFIG, // 1 Window Renderable Opaque
QEGL_NO_CONFIG, // 2 PBuffer Renderable Translucent
QEGL_NO_CONFIG, // 3 PBuffer Renderable Opaque
QEGL_NO_CONFIG, // 4 Pixmap Renderable Translucent
QEGL_NO_CONFIG, // 5 Pixmap Renderable Opaque
QEGL_NO_CONFIG, // 6 Pixmap ReadOnly Translucent
QEGL_NO_CONFIG // 7 Pixmap ReadOnly Opaque
};
if (api == OpenGL) {
if (devType == QInternal::Widget) {
if (options & Translucent)
targetConfig = &(defaultGLConfigs[0]);
else // Opaque
targetConfig = &(defaultGLConfigs[1]);
} else if (devType == QInternal::Pbuffer) {
if (options & Translucent)
targetConfig = &(defaultGLConfigs[2]);
else // Opaque
targetConfig = &(defaultGLConfigs[3]);
} else if (devType == QInternal::Pixmap) {
if (options & Renderable) {
if (options & Translucent)
targetConfig = &(defaultGLConfigs[4]);
else // Opaque
targetConfig = &(defaultGLConfigs[5]);
} else { // ReadOnly
if (options & Translucent)
targetConfig = &(defaultGLConfigs[6]);
else // Opaque
targetConfig = &(defaultGLConfigs[7]);
}
}
}
if (!targetConfig) {
qWarning("QEgl::defaultConfig() - No default config for device/api/options combo");
return QEGL_NO_CONFIG;
}
if (*targetConfig != QEGL_NO_CONFIG)
return *targetConfig;
// We haven't found an EGL config for the target config yet, so do it now:
// Allow overriding from an environment variable:
QByteArray configId;
if (api == OpenVG)
configId = qgetenv("QT_VG_EGL_CONFIG");
else
configId = qgetenv("QT_GL_EGL_CONFIG");
if (!configId.isEmpty()) {
// Overridden, so get the EGLConfig for the specified config ID:
EGLint properties[] = {
EGL_CONFIG_ID, (EGLint)configId.toInt(),
EGL_NONE
};
EGLint configCount = 0;
eglChooseConfig(display(), properties, targetConfig, 1, &configCount);
if (configCount > 0)
return *targetConfig;
qWarning() << "QEgl::defaultConfig() -" << configId << "appears to be invalid";
}
QEglProperties configAttribs;
configAttribs.setRenderableType(api);
EGLint surfaceType;
switch (devType) {
case QInternal::Widget:
surfaceType = EGL_WINDOW_BIT;
break;
case QInternal::Pixmap:
surfaceType = EGL_PIXMAP_BIT;
break;
case QInternal::Pbuffer:
surfaceType = EGL_PBUFFER_BIT;
break;
default:
qWarning("QEgl::defaultConfig() - Can't create EGL surface for %d device type", devType);
return QEGL_NO_CONFIG;
};
#ifdef EGL_VG_ALPHA_FORMAT_PRE_BIT
// For OpenVG, we try to create a surface using a pre-multiplied format if
// the surface needs to have an alpha channel:
if (api == OpenVG && (options & Translucent))
surfaceType |= EGL_VG_ALPHA_FORMAT_PRE_BIT;
#endif
configAttribs.setValue(EGL_SURFACE_TYPE, surfaceType);
#ifdef EGL_BIND_TO_TEXTURE_RGBA
if (devType == QInternal::Pixmap || devType == QInternal::Pbuffer) {
if (options & Translucent)
configAttribs.setValue(EGL_BIND_TO_TEXTURE_RGBA, EGL_TRUE);
else
configAttribs.setValue(EGL_BIND_TO_TEXTURE_RGB, EGL_TRUE);
}
#endif
// Add paint engine requirements
if (api == OpenVG) {
#if !defined(QVG_SCISSOR_CLIP) && defined(EGL_ALPHA_MASK_SIZE)
configAttribs.setValue(EGL_ALPHA_MASK_SIZE, 1);
#endif
} else {
// Both OpenGL paint engines need to have stencil and sample buffers
configAttribs.setValue(EGL_STENCIL_SIZE, 1);
configAttribs.setValue(EGL_SAMPLE_BUFFERS, 1);
#ifndef QT_OPENGL_ES_2
// Additionally, the GL1 engine likes to have a depth buffer for clipping
configAttribs.setValue(EGL_DEPTH_SIZE, 1);
#endif
}
if (options & Translucent)
configAttribs.setValue(EGL_ALPHA_SIZE, 1);
*targetConfig = chooseConfig(&configAttribs, QEgl::BestPixelFormat);
return *targetConfig;
}
void MakeCurrentPerfCase::init (void)
{
chooseConfig();
createContexts();
createSurfaces();
}
