egl/gbm: Fix EGL_DEFAULT_DISPLAY

3 files changed, 31 insertions, 2 deletions

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index 0aca929e6a..9a37ea4bbf 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -592,6 +592,13 @@ dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
          wl_display_destroy(dri2_dpy->wl_dpy);
          break;
 #endif
+#ifdef HAVE_DRM_PLATFORM
+      case _EGL_PLATFORM_DRM:
+         if (dri2_dpy->own_gbm_device) {
+            gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
+         }
+         break;
+#endif
       default:
          break;
       }
diff --git a/src/egl/drivers/dri2/egl_dri2.h b/src/egl/drivers/dri2/egl_dri2.h
index 3854200bc6..a7297188af 100644
--- a/src/egl/drivers/dri2/egl_dri2.h
+++ b/src/egl/drivers/dri2/egl_dri2.h
@@ -86,6 +86,7 @@ struct dri2_egl_display
 
 #ifdef HAVE_DRM_PLATFORM
    struct gbm_dri_device    *gbm_dri;
+   int                       own_gbm_device;
 #endif
 
    char                     *device_name;
diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index 579baf9f9d..04b10e279e 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -30,6 +30,10 @@
 #include <string.h>
 #include <xf86drm.h>
 #include <dlfcn.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
 
 #include "egl_dri2.h"
 
@@ -90,6 +94,7 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
 {
    struct dri2_egl_display *dri2_dpy;
    struct gbm_device *gbm;
+   int fd = -1;
    int i;
 
    dri2_dpy = malloc(sizeof *dri2_dpy);
@@ -100,7 +105,15 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
 
    disp->DriverData = (void *) dri2_dpy;
 
-   gbm = (struct gbm_device *) disp->PlatformDisplay;
+   gbm = disp->PlatformDisplay;
+   if (gbm == NULL) {
+      fd = open("/dev/dri/card0", O_RDWR);
+      dri2_dpy->own_gbm_device = 1;
+      gbm = gbm_create_device(fd);
+      if (gbm == NULL)
+         return EGL_FALSE;
+   }
+
    if (strcmp(gbm_device_get_backend_name(gbm), "drm") != 0) {
       free(dri2_dpy);
       return EGL_FALSE;
@@ -112,7 +125,15 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
       return EGL_FALSE;
    }
 
-   dri2_dpy->fd = gbm_device_get_fd(gbm);
+   if (fd < 0) {
+      fd = dup(gbm_device_get_fd(gbm));
+      if (fd < 0) {
+         free(dri2_dpy);
+         return EGL_FALSE;
+      }
+   }
+
+   dri2_dpy->fd = fd;
    dri2_dpy->device_name = dri2_get_device_name_for_fd(dri2_dpy->fd);
    dri2_dpy->driver_name = dri2_dpy->gbm_dri->base.driver_name;