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wayland: fall back to shm buffers if drm fails

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This commit is contained in:
nobled 2011-01-31 05:05:28 +00:00
parent d84f31ef3a
commit e855bc45a2
3 changed files with 54 additions and 29 deletions
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74
clutter/wayland/clutter-backend-wayland.c
View File

@ -182,37 +182,10 @@ display_handle_global (struct wl_display *display,
}
static gboolean
clutter_backend_wayland_post_parse (ClutterBackend *backend,
GError **error)
try_enable_drm (ClutterBackendWayland *backend_wayland, GError **error)
{
ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
EGLBoolean status;
drm_magic_t magic;
g_atexit (clutter_backend_at_exit);
/* TODO: expose environment variable/commandline option for this... */
backend_wayland->wayland_display = wl_display_connect (NULL);
if (!backend_wayland->wayland_display)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Failed to open Wayland display socket");
return FALSE;
}
backend_wayland->wayland_source =
_clutter_event_source_wayland_new (backend_wayland->wayland_display);
g_source_attach (backend_wayland->wayland_source, NULL);
/* Set up listener so we'll catch all events. */
wl_display_add_global_listener (backend_wayland->wayland_display,
display_handle_global,
backend_wayland);
/* Process connection events. */
wl_display_iterate (backend_wayland->wayland_display, WL_DISPLAY_READABLE);
backend_wayland->drm_fd = open (backend_wayland->device_name, O_RDWR);
if (backend_wayland->drm_fd < 0)
{
@ -261,6 +234,51 @@ clutter_backend_wayland_post_parse (ClutterBackend *backend,
backend_wayland->edpy =
backend_wayland->get_drm_display (backend_wayland->drm_fd);
return TRUE;
};
static gboolean
clutter_backend_wayland_post_parse (ClutterBackend *backend,
GError **error)
{
ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
EGLBoolean status;
g_atexit (clutter_backend_at_exit);
/* TODO: expose environment variable/commandline option for this... */
backend_wayland->wayland_display = wl_display_connect (NULL);
if (!backend_wayland->wayland_display)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Failed to open Wayland display socket");
return FALSE;
}
backend_wayland->wayland_source =
_clutter_event_source_wayland_new (backend_wayland->wayland_display);
g_source_attach (backend_wayland->wayland_source, NULL);
/* Set up listener so we'll catch all events. */
wl_display_add_global_listener (backend_wayland->wayland_display,
display_handle_global,
backend_wayland);
/* Process connection events. */
wl_display_iterate (backend_wayland->wayland_display, WL_DISPLAY_READABLE);
backend_wayland->drm_enabled = try_enable_drm(backend_wayland, error);
if (!backend_wayland->drm_enabled) {
if (backend_wayland->wayland_shm == NULL)
return FALSE;
g_debug("Could not enable DRM buffers, falling back to SHM buffers");
g_clear_error(error);
backend_wayland->edpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
}
status = eglInitialize (backend_wayland->edpy,
&backend_wayland->egl_version_major,
&backend_wayland->egl_version_minor);

1
clutter/wayland/clutter-backend-wayland.h
View File

@ -73,6 +73,7 @@ struct _ClutterBackendWayland
struct wl_output *wayland_output;
ClutterGeometry screen_allocation;
int drm_fd;
gboolean drm_enabled;
PFNEGLGETDRMDISPLAYMESA get_drm_display;
PFNEGLCREATEDRMIMAGEMESA create_drm_image;

8
clutter/wayland/clutter-stage-wayland.c
View File

@ -190,7 +190,13 @@ wayland_create_buffer (ClutterGeometry *geom)
ClutterStageWaylandWaylandBuffer *buffer;
cairo_rectangle_int_t rect;
buffer = wayland_create_drm_buffer (backend_wayland, geom);
if (backend_wayland->drm_enabled &&
backend_wayland->wayland_drm != NULL)
buffer = wayland_create_drm_buffer (backend_wayland, geom);
else if (backend_wayland->wayland_shm != NULL)
buffer = wayland_create_shm_buffer (backend_wayland, geom);
else
return NULL;
buffer->offscreen = cogl_offscreen_new_to_texture (buffer->tex);