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wayland/dma-buf: Add manager struct

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It'll be used to store state related to DMA buffer Wayland support.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1959>
This commit is contained in:
Jonas Ådahl 2021-08-04 10:12:33 +02:00 committed by Marge Bot
parent 7ce481bf69
commit 51308a9d78
5 changed files with 71 additions and 14 deletions
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49
src/wayland/meta-wayland-dma-buf.c
View File

@ -66,6 +66,11 @@
#define META_WAYLAND_DMA_BUF_MAX_FDS 4
struct _MetaWaylandDmaBufManager
{
MetaWaylandCompositor *compositor;
};
struct _MetaWaylandDmaBufBuffer
{
GObject parent;
@ -713,17 +718,17 @@ send_modifiers (struct wl_resource *resource,
static void
dma_buf_bind (struct wl_client *client,
void *data,
void *user_data,
uint32_t version,
uint32_t id)
{
MetaWaylandCompositor *compositor = data;
MetaWaylandDmaBufManager *dma_buf_manager = user_data;
struct wl_resource *resource;
resource = wl_resource_create (client, &zwp_linux_dmabuf_v1_interface,
version, id);
wl_resource_set_implementation (resource, &dma_buf_implementation,
compositor, NULL);
dma_buf_manager, NULL);
send_modifiers (resource, DRM_FORMAT_ARGB8888);
send_modifiers (resource, DRM_FORMAT_ABGR8888);
send_modifiers (resource, DRM_FORMAT_XRGB8888);
@ -740,38 +745,58 @@ dma_buf_bind (struct wl_client *client,
}
/**
* meta_wayland_dma_buf_init:
* meta_wayland_dma_buf_manager_new:
* @compositor: The #MetaWaylandCompositor
*
* Creates the global Wayland object that exposes the linux-dmabuf protocol.
*
* Returns: Whether the initialization was successful. If this is %FALSE,
* clients won't be able to use the linux-dmabuf protocol to pass buffers.
* Returns: (transfer full): The MetaWaylandDmaBufManager instance.
*/
gboolean
meta_wayland_dma_buf_init (MetaWaylandCompositor *compositor)
MetaWaylandDmaBufManager *
meta_wayland_dma_buf_manager_new (MetaWaylandCompositor *compositor,
GError **error)
{
MetaBackend *backend = meta_get_backend ();
MetaEgl *egl = meta_backend_get_egl (backend);
ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
CoglContext *cogl_context = clutter_backend_get_cogl_context (clutter_backend);
EGLDisplay egl_display = cogl_egl_context_get_egl_display (cogl_context);
g_autoptr (GError) local_error = NULL;
g_autofree MetaWaylandDmaBufManager *dma_buf_manager = NULL;
g_assert (backend && egl && clutter_backend && cogl_context && egl_display);
if (!meta_egl_has_extensions (egl, egl_display, NULL,
"EGL_EXT_image_dma_buf_import_modifiers",
NULL))
return FALSE;
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
"Missing 'EGL_EXT_image_dma_buf_import_modifiers'");
return NULL;
}
dma_buf_manager = g_new0 (MetaWaylandDmaBufManager, 1);
if (!wl_global_create (compositor->wayland_display,
&zwp_linux_dmabuf_v1_interface,
META_ZWP_LINUX_DMABUF_V1_VERSION,
compositor,
dma_buf_manager,
dma_buf_bind))
return FALSE;
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Failed to create zwp_linux_dmabuf_v1 global");
return NULL;
}
return TRUE;
dma_buf_manager->compositor = compositor;
return g_steal_pointer (&dma_buf_manager);
}
void
meta_wayland_dma_buf_manager_free (MetaWaylandDmaBufManager *dma_buf_manager)
{
g_free (dma_buf_manager);
}
static void

5
src/wayland/meta-wayland-dma-buf.h
View File

@ -39,7 +39,10 @@ G_DECLARE_FINAL_TYPE (MetaWaylandDmaBufBuffer, meta_wayland_dma_buf_buffer,
typedef struct _MetaWaylandDmaBufBuffer MetaWaylandDmaBufBuffer;
gboolean meta_wayland_dma_buf_init (MetaWaylandCompositor *compositor);
MetaWaylandDmaBufManager * meta_wayland_dma_buf_manager_new (MetaWaylandCompositor *compositor,
GError **error);
void meta_wayland_dma_buf_manager_free (MetaWaylandDmaBufManager *dma_buf_manager);
gboolean
meta_wayland_dma_buf_buffer_attach (MetaWaylandBuffer *buffer,

1
src/wayland/meta-wayland-private.h
View File

@ -100,6 +100,7 @@ struct _MetaWaylandCompositor
GHashTable *scheduled_surface_associations;
MetaWaylandPresentationTime presentation_time;
MetaWaylandDmaBufManager *dma_buf_manager;
};
#define META_TYPE_WAYLAND_COMPOSITOR (meta_wayland_compositor_get_type ())

2
src/wayland/meta-wayland-types.h
View File

@ -63,4 +63,6 @@ typedef struct _MetaWaylandPointerClient MetaWaylandPointerClient;
typedef struct _MetaWaylandActivation MetaWaylandActivation;
typedef struct _MetaWaylandDmaBufManager MetaWaylandDmaBufManager;
#endif

28
src/wayland/meta-wayland.c
View File

@ -437,6 +437,9 @@ meta_wayland_compositor_finalize (GObject *object)
{
MetaWaylandCompositor *compositor = META_WAYLAND_COMPOSITOR (object);
g_clear_pointer (&compositor->dma_buf_manager,
meta_wayland_dma_buf_manager_free);
g_clear_pointer (&compositor->seat, meta_wayland_seat_free);
g_clear_pointer (&compositor->display_name, g_free);
@ -526,6 +529,29 @@ meta_wayland_init_egl (MetaWaylandCompositor *compositor)
g_warning ("Failed to bind Wayland display: %s", error->message);
}
static void
init_dma_buf_support (MetaWaylandCompositor *compositor)
{
g_autoptr (GError) error = NULL;
compositor->dma_buf_manager = meta_wayland_dma_buf_manager_new (compositor,
&error);
if (!compositor->dma_buf_manager)
{
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
{
meta_topic (META_DEBUG_WAYLAND,
"Wayland DMA buffer protocol support not enabled: %s",
error->message);
}
else
{
g_warning ("Wayland DMA buffer protocol support not enabled: %s",
error->message);
}
}
}
MetaWaylandCompositor *
meta_wayland_compositor_new (MetaContext *context)
{
@ -577,7 +603,7 @@ meta_wayland_compositor_new (MetaContext *context)
meta_wayland_relative_pointer_init (compositor);
meta_wayland_pointer_constraints_init (compositor);
meta_wayland_xdg_foreign_init (compositor);
meta_wayland_dma_buf_init (compositor);
init_dma_buf_support (compositor);
meta_wayland_keyboard_shortcuts_inhibit_init (compositor);
meta_wayland_surface_inhibit_shortcuts_dialog_init ();
meta_wayland_text_input_init (compositor);