From 49d29440457a89bb0438ed882eb47f4f28fd328a Mon Sep 17 00:00:00 2001 From: Ilya Fedin Date: Tue, 5 Oct 2021 04:31:47 +0400 Subject: Make EGL use Qt X connection without xcb_xlib with EGL_EXT_platform_xcb This allows to create EGL context without involving Xlib. This extension was created a year ago and is present in Mesa since 21.0 Change-Id: I7cb0aece1e67b4db59d453cbcfbd317bb5d9c777 Reviewed-by: Liang Qi --- .../gl_integrations/xcb_egl/qxcbeglintegration.cpp | 24 ++++++++++++---------- .../gl_integrations/xcb_egl/qxcbeglintegration.h | 1 - 2 files changed, 13 insertions(+), 12 deletions(-) (limited to 'src/plugins/platforms/xcb') diff --git a/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp b/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp index 08c34cc495..1e93ea6805 100644 --- a/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp +++ b/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.cpp @@ -74,15 +74,26 @@ bool QXcbEglIntegration::initialize(QXcbConnection *connection) const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS); +#if QT_CONFIG(xcb_xlib) if (extensions && strstr(extensions, "EGL_EXT_platform_x11")) { QEGLStreamConvenience streamFuncs; m_egl_display = streamFuncs.get_platform_display(EGL_PLATFORM_X11_KHR, - xlib_display(), + m_connection->xlib_display(), nullptr); } +#if QT_CONFIG(egl_x11) if (!m_egl_display) - m_egl_display = eglGetDisplay(reinterpret_cast(xlib_display())); + m_egl_display = eglGetDisplay(reinterpret_cast(m_connection->xlib_display())); +#endif +#else + if (extensions && (strstr(extensions, "EGL_EXT_platform_xcb") || strstr(extensions, "EGL_MESA_platform_xcb"))) { + QEGLStreamConvenience streamFuncs; + m_egl_display = streamFuncs.get_platform_display(EGL_PLATFORM_XCB_KHR, + reinterpret_cast(connection->xcb_connection()), + nullptr); + } +#endif EGLint major, minor; bool success = eglInitialize(m_egl_display, &major, &minor); @@ -127,15 +138,6 @@ QPlatformOffscreenSurface *QXcbEglIntegration::createPlatformOffscreenSurface(QO return new QEGLPbuffer(eglDisplay(), screen->surfaceFormatFor(surface->requestedFormat()), surface); } -void *QXcbEglIntegration::xlib_display() const -{ -#if QT_CONFIG(xcb_xlib) - return m_connection->xlib_display(); -#else - return EGL_DEFAULT_DISPLAY; -#endif -} - xcb_visualid_t QXcbEglIntegration::getCompatibleVisualId(xcb_screen_t *screen, EGLConfig config) const { xcb_visualid_t visualId = 0; diff --git a/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.h b/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.h index 194b6d6e77..ff0804678f 100644 --- a/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.h +++ b/src/plugins/platforms/xcb/gl_integrations/xcb_egl/qxcbeglintegration.h @@ -38,7 +38,6 @@ public: bool supportsThreadedOpenGL() const override { return true; } EGLDisplay eglDisplay() const { return m_egl_display; } - void *xlib_display() const; xcb_visualid_t getCompatibleVisualId(xcb_screen_t *screen, EGLConfig config) const; private: -- cgit v1.2.3