QX11GLSharedContexts()
: rgbContext(0)
, argbContext(0)
, sharedQGLContext(0)
, sharePixmap(0)
{
EGLint rgbConfigId;
EGLint argbConfigId;
do {
EGLConfig rgbConfig = QEgl::defaultConfig(QInternal::Pixmap, QEgl::OpenGL, QEgl::Renderable);
EGLConfig argbConfig = QEgl::defaultConfig(QInternal::Pixmap, QEgl::OpenGL,
QEgl::Renderable | QEgl::Translucent);
eglGetConfigAttrib(QEgl::display(), rgbConfig, EGL_CONFIG_ID, &rgbConfigId);
eglGetConfigAttrib(QEgl::display(), argbConfig, EGL_CONFIG_ID, &argbConfigId);
rgbContext = new QEglContext;
rgbContext->setConfig(rgbConfig);
rgbContext->createContext();
if (!rgbContext->isValid())
break;
// If the RGB & ARGB configs are the same, use the same egl context for both:
if (rgbConfig == argbConfig)
argbContext = rgbContext;
// Otherwise, create a separate context to be used for ARGB pixmaps:
if (!argbContext) {
argbContext = new QEglContext;
argbContext->setConfig(argbConfig);
bool success = argbContext->createContext(rgbContext);
if (!success) {
qWarning("QX11GLPixmapData - RGB & ARGB contexts aren't shared");
success = argbContext->createContext();
if (!success)
argbContext = rgbContext; // Might work, worth a shot at least.
}
}
if (!argbContext->isValid())
break;
// Create the pixmap which will be used to create the egl surface for the share QGLContext
QX11PixmapData *rgbPixmapData = new QX11PixmapData(QPixmapData::PixmapType);
rgbPixmapData->resize(8, 8);
rgbPixmapData->fill(Qt::red);
sharePixmap = new QPixmap(rgbPixmapData);
EGLSurface sharePixmapSurface = QEgl::createSurface(sharePixmap, rgbConfig);
rgbPixmapData->gl_surface = (void*)sharePixmapSurface;
// Create the actual QGLContext which will be used for sharing
sharedQGLContext = new QGLContext(QX11GLPixmapData::glFormat());
sharedQGLContext->d_func()->eglContext = rgbContext;
sharedQGLContext->d_func()->eglSurface = sharePixmapSurface;
sharedQGLContext->d_func()->valid = true;
qt_glformat_from_eglconfig(sharedQGLContext->d_func()->glFormat, rgbConfig);
valid = rgbContext->makeCurrent(sharePixmapSurface);
// If the ARGB & RGB configs are different, check ARGB works too:
if (argbConfig != rgbConfig) {
QX11PixmapData *argbPixmapData = new QX11PixmapData(QPixmapData::PixmapType);
argbPixmapData->resize(8, 8);
argbPixmapData->fill(Qt::transparent); // Force ARGB
QPixmap argbPixmap(argbPixmapData); // destroys pixmap data when goes out of scope
EGLSurface argbPixmapSurface = QEgl::createSurface(&argbPixmap, argbConfig);
valid = argbContext->makeCurrent(argbPixmapSurface);
argbContext->doneCurrent();
eglDestroySurface(QEgl::display(), argbPixmapSurface);
argbPixmapData->gl_surface = 0;
}
if (!valid) {
qWarning() << "Unable to make pixmap surface current:" << QEgl::errorString();
break;
}
// The pixmap surface destruction hooks are installed by QGLTextureCache, so we
// must make sure this is instanciated:
QGLTextureCache::instance();
} while(0);
if (!valid)
cleanup();
else
qDebug("Using QX11GLPixmapData with EGL config %d for ARGB and config %d for RGB", argbConfigId, rgbConfigId);
}
bool QX11GLPixmapData::hasX11GLPixmaps()
{
static bool checkedForX11Pixmaps = false;
static bool haveX11Pixmaps = false;
if (checkedForX11Pixmaps)
return haveX11Pixmaps;
checkedForX11Pixmaps = true;
QX11PixmapData *argbPixmapData = 0;
QX11PixmapData *rgbPixmapData = 0;
do {
if (qgetenv("QT_USE_X11GL_PIXMAPS").isEmpty())
break;
// Check we actually have EGL configs which support pixmaps
EGLConfig argbConfig = qt_chooseEGLConfigForPixmap(true, false);
EGLConfig rgbConfig = qt_chooseEGLConfigForPixmap(false, false);
if (argbConfig == 0 || rgbConfig == 0)
break;
// Create the shared contexts:
eglBindAPI(EGL_OPENGL_ES_API);
EGLint contextAttribs[] = {
#if defined(QT_OPENGL_ES_2)
EGL_CONTEXT_CLIENT_VERSION, 2,
#endif
EGL_NONE
};
qPixmapARGBSharedEglContext = eglCreateContext(QEglContext::defaultDisplay(0),
argbConfig, 0, contextAttribs);
if (argbConfig == rgbConfig) {
// If the configs are the same, we can re-use the same context.
qPixmapRGBSharedEglContext = qPixmapARGBSharedEglContext;
} else {
qPixmapRGBSharedEglContext = eglCreateContext(QEglContext::defaultDisplay(0),
rgbConfig, 0, contextAttribs);
}
argbPixmapData = new QX11PixmapData(QPixmapData::PixmapType);
argbPixmapData->resize(100, 100);
argbPixmapData->fill(Qt::transparent); // Force ARGB
if (!qt_createEGLSurfaceForPixmap(argbPixmapData, false))
break;
haveX11Pixmaps = eglMakeCurrent(QEglContext::defaultDisplay(0),
(EGLSurface)argbPixmapData->gl_surface,
(EGLSurface)argbPixmapData->gl_surface,
qPixmapARGBSharedEglContext);
if (!haveX11Pixmaps) {
EGLint err = eglGetError();
qWarning() << "Unable to make pixmap config current:" << err << QEglContext::errorString(err);
break;
}
// If the ARGB & RGB configs are the same, we don't need to check RGB too
if (haveX11Pixmaps && (argbConfig != rgbConfig)) {
rgbPixmapData = new QX11PixmapData(QPixmapData::PixmapType);
rgbPixmapData->resize(100, 100);
rgbPixmapData->fill(Qt::red);
// Try to actually create an EGL pixmap surface
if (!qt_createEGLSurfaceForPixmap(rgbPixmapData, false))
break;
haveX11Pixmaps = eglMakeCurrent(QEglContext::defaultDisplay(0),
(EGLSurface)rgbPixmapData->gl_surface,
(EGLSurface)rgbPixmapData->gl_surface,
qPixmapRGBSharedEglContext);
if (!haveX11Pixmaps) {
EGLint err = eglGetError();
qWarning() << "Unable to make pixmap config current:" << err << QEglContext::errorString(err);
break;
}
}
} while (0);
if (qPixmapARGBSharedEglContext || qPixmapRGBSharedEglContext) {
eglMakeCurrent(QEglContext::defaultDisplay(0),
EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
}
if (argbPixmapData) {
if (argbPixmapData->gl_surface)
QGLContextPrivate::destroyGlSurfaceForPixmap(argbPixmapData);
delete argbPixmapData;
argbPixmapData = 0;
}
if (rgbPixmapData) {
if (rgbPixmapData->gl_surface)
QGLContextPrivate::destroyGlSurfaceForPixmap(rgbPixmapData);
delete rgbPixmapData;
rgbPixmapData = 0;
}
if (!haveX11Pixmaps) {
// Clean up the context(s) if we can't use X11GL pixmaps
if (qPixmapARGBSharedEglContext != EGL_NO_CONTEXT)
eglDestroyContext(QEglContext::defaultDisplay(0), qPixmapARGBSharedEglContext);
if (qPixmapRGBSharedEglContext != qPixmapARGBSharedEglContext &&
qPixmapRGBSharedEglContext != EGL_NO_CONTEXT)
{
eglDestroyContext(QEglContext::defaultDisplay(0), qPixmapRGBSharedEglContext);
}
qPixmapRGBSharedEglContext = EGL_NO_CONTEXT;
qPixmapARGBSharedEglContext = EGL_NO_CONTEXT;
}
if (haveX11Pixmaps)
qDebug("QX11GLPixmapData is supported");
else
qDebug("QX11GLPixmapData is *NOT* being used");
return haveX11Pixmaps;
}