diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qglxintegration.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qglxintegration.cpp | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/src/plugins/platforms/xcb/qglxintegration.cpp b/src/plugins/platforms/xcb/qglxintegration.cpp index e504d93fba..3f1c53b122 100644 --- a/src/plugins/platforms/xcb/qglxintegration.cpp +++ b/src/plugins/platforms/xcb/qglxintegration.cpp @@ -167,6 +167,7 @@ QGLXContext::QGLXContext(QXcbScreen *screen, const QSurfaceFormat &format, QPlat , m_shareContext(0) , m_format(format) , m_isPBufferCurrent(false) + , m_swapInterval(-1) { if (m_format.renderableType() == QSurfaceFormat::DefaultRenderableType) m_format.setRenderableType(QSurfaceFormat::OpenGL); @@ -326,19 +327,50 @@ QGLXContext::~QGLXContext() bool QGLXContext::makeCurrent(QPlatformSurface *surface) { + bool success = false; Q_ASSERT(surface->surface()->surfaceType() == QSurface::OpenGLSurface); + Display *dpy = DISPLAY_FROM_XCB(m_screen); + GLXDrawable glxDrawable = 0; QSurface::SurfaceClass surfaceClass = surface->surface()->surfaceClass(); if (surfaceClass == QSurface::Window) { m_isPBufferCurrent = false; QXcbWindow *window = static_cast<QXcbWindow *>(surface); - return glXMakeCurrent(DISPLAY_FROM_XCB(m_screen), window->xcb_window(), m_context); + glxDrawable = window->xcb_window(); + success = glXMakeCurrent(dpy, glxDrawable, m_context); } else if (surfaceClass == QSurface::Offscreen) { m_isPBufferCurrent = true; QGLXPbuffer *pbuffer = static_cast<QGLXPbuffer *>(surface); - return glXMakeContextCurrent(DISPLAY_FROM_XCB(m_screen), pbuffer->pbuffer(), pbuffer->pbuffer(), m_context); + glxDrawable = pbuffer->pbuffer(); + success = glXMakeContextCurrent(dpy, glxDrawable, glxDrawable, m_context); + } + + if (success) { + int interval = surface->format().swapInterval(); + if (interval >= 0 && m_swapInterval != interval) { + m_swapInterval = interval; + typedef void (*qt_glXSwapIntervalEXT)(Display *, GLXDrawable, int); + typedef void (*qt_glXSwapIntervalMESA)(unsigned int); + static qt_glXSwapIntervalEXT glXSwapIntervalEXT = 0; + static qt_glXSwapIntervalMESA glXSwapIntervalMESA = 0; + static bool resolved = false; + if (!resolved) { + resolved = true; + QList<QByteArray> glxExt = QByteArray(glXQueryExtensionsString(dpy, + m_screen->screenNumber())).split(' '); + if (glxExt.contains("GLX_EXT_swap_control")) + glXSwapIntervalEXT = (qt_glXSwapIntervalEXT) getProcAddress("glXSwapIntervalEXT"); + if (glxExt.contains("GLX_MESA_swap_control")) + glXSwapIntervalMESA = (qt_glXSwapIntervalMESA) getProcAddress("glXSwapIntervalMESA"); + } + if (glXSwapIntervalEXT) + glXSwapIntervalEXT(dpy, glxDrawable, interval); + else if (glXSwapIntervalMESA) + glXSwapIntervalMESA(interval); + } } - return false; + + return success; } void QGLXContext::doneCurrent() |