diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbconnection.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection.cpp | 131 |
1 files changed, 129 insertions, 2 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp index 967aa4d..06e4d13 100644 --- a/src/plugins/platforms/xcb/qxcbconnection.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection.cpp @@ -46,16 +46,38 @@ #include <QtAlgorithms> #include <QSocketNotifier> +#include <QtGui/private/qapplication_p.h> + +#include <QtCore/QDebug> #include <stdio.h> +#include <errno.h> #ifdef XCB_USE_XLIB #include <X11/Xlib.h> #include <X11/Xlib-xcb.h> #endif +#ifdef XCB_USE_DRI2 +#include <xcb/dri2.h> +#include <xcb/xfixes.h> +extern "C" { +#include <xf86drm.h> +} +#define MESA_EGL_NO_X11_HEADERS +#define EGL_EGLEXT_PROTOTYPES +#include <EGL/egl.h> +#include <EGL/eglext.h> +#endif + QXcbConnection::QXcbConnection(const char *displayName) : m_displayName(displayName ? QByteArray(displayName) : qgetenv("DISPLAY")) +#ifdef XCB_USE_DRI2 + , m_dri2_major(0) + , m_dri2_minor(0) + , m_dri2_support_probed(false) + , m_has_support_for_dri2(false) +#endif { int primaryScreen = 0; @@ -67,8 +89,8 @@ QXcbConnection::QXcbConnection(const char *displayName) m_xlib_display = dpy; #else m_connection = xcb_connect(m_displayName.constData(), &primaryScreen); -#endif +#endif //XCB_USE_XLIB m_setup = xcb_get_setup(xcb_connection()); xcb_screen_iterator_t it = xcb_setup_roots_iterator(m_setup); @@ -85,6 +107,10 @@ QXcbConnection::QXcbConnection(const char *displayName) m_keyboard = new QXcbKeyboard(this); initializeAllAtoms(); + +#ifdef XCB_USE_DRI2 + initializeDri2(); +#endif } QXcbConnection::~QXcbConnection() @@ -124,7 +150,7 @@ break; } \ break; -#define XCB_EVENT_DEBUG +//#define XCB_EVENT_DEBUG void printXcbEvent(const char *message, xcb_generic_event_t *event) { @@ -405,3 +431,104 @@ void QXcbConnection::initializeAllAtoms() { for (i = 0; i < QXcbAtom::NAtoms; ++i) m_allAtoms[i] = xcb_intern_atom_reply(xcb_connection(), cookies[i], 0)->atom; } + +#ifdef XCB_USE_DRI2 +void QXcbConnection::initializeDri2() +{ + xcb_dri2_connect_cookie_t connect_cookie = xcb_dri2_connect_unchecked (m_connection, + m_screens[0]->root(), + XCB_DRI2_DRIVER_TYPE_DRI); + + xcb_dri2_connect_reply_t *connect = xcb_dri2_connect_reply (m_connection, + connect_cookie, NULL); + + if (! connect || connect->driver_name_length + connect->device_name_length == 0) { + qDebug() << "Failed to connect to dri2"; + return; + } + + QString dri2DeviceName = QString::fromLocal8Bit(xcb_dri2_connect_device_name (connect), + xcb_dri2_connect_device_name_length (connect)); + delete connect; + + int fd = open(qPrintable(dri2DeviceName), O_RDWR); + if (fd < 0) { + qDebug() << "InitializeDri2: Could'nt open device << dri2DeviceName"; + return; + } + + drm_magic_t magic; + if (drmGetMagic(fd, &magic)) { + qDebug() << "Failed to get drmMagic"; + return; + } + + xcb_dri2_authenticate_cookie_t authenticate_cookie = xcb_dri2_authenticate_unchecked(m_connection, + m_screens[0]->root(), magic); + xcb_dri2_authenticate_reply_t *authenticate = xcb_dri2_authenticate_reply(m_connection, + authenticate_cookie, NULL); + if (authenticate == NULL || !authenticate->authenticated) { + fprintf(stderr, "DRI2: failed to authenticate\n"); + free(authenticate); + return; + } + + delete authenticate; + + EGLDisplay display = eglGetDRMDisplayMESA(fd); + if (!display) { + fprintf(stderr, "failed to create display\n"); + return; + } + + m_egl_display = display; + EGLint major,minor; + if (!eglInitialize(display, &major, &minor)) { + fprintf(stderr, "failed to initialize display\n"); + return; + } +} + +bool QXcbConnection::hasSupportForDri2() const +{ + if (!m_dri2_support_probed) { + xcb_generic_error_t *error = 0; + + xcb_prefetch_extension_data (m_connection, &xcb_xfixes_id); + xcb_prefetch_extension_data (m_connection, &xcb_dri2_id); + + xcb_xfixes_query_version_cookie_t xfixes_query_cookie = xcb_xfixes_query_version(m_connection, + XCB_XFIXES_MAJOR_VERSION, + XCB_XFIXES_MINOR_VERSION); + + xcb_dri2_query_version_cookie_t dri2_query_cookie = xcb_dri2_query_version (m_connection, + XCB_DRI2_MAJOR_VERSION, + XCB_DRI2_MINOR_VERSION); + + xcb_xfixes_query_version_reply_t *xfixes_query = xcb_xfixes_query_version_reply (m_connection, + xfixes_query_cookie, &error); + if (!xfixes_query || error || xfixes_query->major_version < 2) { + delete error; + delete xfixes_query; + return false; + } + delete xfixes_query; + + xcb_dri2_query_version_reply_t *dri2_query = xcb_dri2_query_version_reply (m_connection, + dri2_query_cookie, &error); + if (!dri2_query || error) { + delete error; + delete dri2_query; + return false; + } + + QXcbConnection *that = const_cast<QXcbConnection *>(this); + that->m_dri2_major = dri2_query->major_version; + that->m_dri2_minor = dri2_query->minor_version; + + that->m_has_support_for_dri2 = true; + that->m_dri2_support_probed = true; + } + return m_has_support_for_dri2; +} +#endif //XCB_USE_DRI2 |