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cogland: This updates the example wayland compositor
This updates the cogland Wayland compositor example with is an extremely minimal Wayland compositor. It demonstrates a multi(4)-head compositor whereby client buffers are simply stretched to cover all outputs. No input or shell features are implemented since it's really only for demonstrating the use of Cogl. Reviewed-by: Neil Roberts <neil@linux.intel.com>
This commit is contained in:
Robert Bragg
parent
79f20d08b6
commit
917a7ebe80
@ -29,13 +29,25 @@ typedef struct
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typedef struct
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{
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struct wl_object wayland_output;
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int x;
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int y;
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guint32 flags;
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int width;
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int height;
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int refresh;
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} CoglandMode;
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typedef struct
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{
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struct wl_object wayland_output;
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gint32 x;
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gint32 y;
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gint32 width_mm;
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gint32 height_mm;
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CoglOnscreen *onscreen;
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GList *modes;
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} CoglandOutput;
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typedef struct
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@ -48,7 +60,6 @@ typedef struct
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struct _CoglandCompositor
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{
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struct wl_display *wayland_display;
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struct wl_compositor wayland_compositor;
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struct wl_shm *wayland_shm;
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struct wl_event_loop *wayland_loop;
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@ -59,6 +70,8 @@ struct _CoglandCompositor
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int virtual_height;
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GList *outputs;
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GArray *frame_callbacks;
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CoglPrimitive *triangle;
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GSource *wayland_event_source;
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@ -160,30 +173,6 @@ shm_buffer_created (struct wl_buffer *wayland_buffer)
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wayland_buffer->user_data = cogland_buffer_new (wayland_buffer);
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}
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static CoglPixelFormat
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get_buffer_format (struct wl_buffer *wayland_buffer)
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{
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struct wl_compositor *compositor = wayland_buffer->compositor;
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struct wl_visual *visual = wayland_buffer->visual;
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#if G_BYTE_ORDER == G_BIG_ENDIAN
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if (visual == &compositor->premultiplied_argb_visual)
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return COGL_PIXEL_FORMAT_ARGB_8888_PRE;
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else if (visual == &compositor->argb_visual)
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return COGL_PIXEL_FORMAT_ARGB_8888;
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else if (visual == &compositor->rgb_visual)
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return COGL_PIXEL_FORMAT_RGB_888;
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#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
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if (visual == &compositor->premultiplied_argb_visual)
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return COGL_PIXEL_FORMAT_BGRA_8888_PRE;
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else if (visual == &compositor->argb_visual)
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return COGL_PIXEL_FORMAT_BGRA_8888;
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else if (visual == &compositor->rgb_visual)
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return COGL_PIXEL_FORMAT_BGR_888;
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#endif
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else
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g_return_val_if_reached (COGL_PIXEL_FORMAT_ANY);
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}
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static void
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shm_buffer_damaged (struct wl_buffer *wayland_buffer,
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gint32 x,
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@ -195,12 +184,38 @@ shm_buffer_damaged (struct wl_buffer *wayland_buffer,
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if (buffer->texture)
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{
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cogl_texture_set_region (buffer->texture,
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CoglPixelFormat format;
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switch (wl_shm_buffer_get_format (wayland_buffer))
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{
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#if G_BYTE_ORDER == G_BIG_ENDIAN
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case WL_SHM_FORMAT_PREMULTIPLIED_ARGB32:
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format = COGL_PIXEL_FORMAT_ARGB_8888_PRE;
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break;
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case WL_SHM_FORMAT_ARGB32:
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case WL_SHM_FORMAT_XRGB32:
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format = COGL_PIXEL_FORMAT_ARGB_8888;
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break;
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#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
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case WL_SHM_FORMAT_PREMULTIPLIED_ARGB32:
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format = COGL_PIXEL_FORMAT_BGRA_8888_PRE;
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break;
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case WL_SHM_FORMAT_ARGB32:
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case WL_SHM_FORMAT_XRGB32:
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format = COGL_PIXEL_FORMAT_BGRA_8888;
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break;
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#endif
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default:
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g_warn_if_reached ();
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format = COGL_PIXEL_FORMAT_ARGB_8888;
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}
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cogl_texture_set_region (COGL_TEXTURE (buffer->texture),
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x, y,
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x, y,
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width, height,
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width, height,
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get_buffer_format (wayland_buffer),
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format,
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wl_shm_buffer_get_stride (wayland_buffer),
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wl_shm_buffer_get_data (wayland_buffer));
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}
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@ -221,9 +236,9 @@ const static struct wl_shm_callbacks shm_callbacks = {
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static void
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cogland_surface_destroy (struct wl_client *wayland_client,
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struct wl_surface *wayland_surface)
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struct wl_resource *wayland_resource)
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{
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wl_resource_destroy (&wayland_surface->resource, wayland_client, get_time ());
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wl_resource_destroy (wayland_resource, get_time ());
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}
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static void
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@ -243,16 +258,22 @@ cogland_surface_detach_buffer (CoglandSurface *surface)
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static void
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cogland_surface_attach_buffer (struct wl_client *wayland_client,
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struct wl_surface *wayland_surface,
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struct wl_buffer *wayland_buffer,
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struct wl_resource *wayland_surface_resource,
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struct wl_resource *wayland_buffer_resource,
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gint32 dx, gint32 dy)
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{
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struct wl_buffer *wayland_buffer = wayland_buffer_resource->data;
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CoglandBuffer *buffer = wayland_buffer->user_data;
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CoglandSurface *surface = container_of (wayland_surface,
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CoglandSurface,
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wayland_surface);
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CoglandSurface *surface = wayland_surface_resource->data;
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CoglandCompositor *compositor = surface->compositor;
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/* XXX: in the case where we are reattaching the same buffer we can
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* simply bail out. Note this is important because if we don't bail
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* out then the _detach_buffer will actually end up destroying the
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* buffer we're trying to attach. */
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if (buffer && surface->buffer == buffer)
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return;
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cogland_surface_detach_buffer (surface);
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/* XXX: it seems like for shm buffers we will have been notified of
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@ -264,10 +285,6 @@ cogland_surface_attach_buffer (struct wl_client *wayland_client,
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wayland_buffer->user_data = buffer;
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}
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/* wayland-drm.c: drm_create_buffer doesn't fill this in for us...*/
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if (!wayland_buffer->compositor)
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wayland_buffer->compositor = &compositor->wayland_compositor;
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g_return_if_fail (g_list_find (buffer->surfaces_attached_to, surface) == NULL);
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buffer->surfaces_attached_to = g_list_prepend (buffer->surfaces_attached_to,
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@ -289,31 +306,9 @@ cogland_surface_attach_buffer (struct wl_client *wayland_client,
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surface->buffer = buffer;
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}
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static void
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cogland_surface_map_toplevel (struct wl_client *client,
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struct wl_surface *surface)
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{
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}
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static void
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cogland_surface_map_transient (struct wl_client *client,
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struct wl_surface *surface,
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struct wl_surface *parent,
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gint32 dx,
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gint32 dy,
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guint32 flags)
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{
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}
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static void
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cogland_surface_map_fullscreen (struct wl_client *client,
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struct wl_surface *surface)
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{
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}
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static void
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cogland_surface_damage (struct wl_client *client,
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struct wl_surface *surface,
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struct wl_resource *resource,
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gint32 x,
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gint32 y,
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gint32 width,
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@ -321,13 +316,43 @@ cogland_surface_damage (struct wl_client *client,
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{
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}
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typedef struct _CoglandFrameCallback
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{
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struct wl_resource resource;
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} CoglandFrameCallback;
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static void
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destroy_frame_callback (struct wl_resource *callback_resource)
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{
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CoglandFrameCallback *callback = callback_resource->data;
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g_slice_free (CoglandFrameCallback, callback);
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}
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static void
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cogland_surface_frame (struct wl_client *client,
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struct wl_resource *surface_resource,
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guint32 callback_id)
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{
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CoglandFrameCallback *callback;
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CoglandSurface *surface = surface_resource->data;
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callback = g_slice_new0 (CoglandFrameCallback);
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callback->resource.object.interface = &wl_callback_interface;
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callback->resource.object.id = callback_id;
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callback->resource.destroy = destroy_frame_callback;
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callback->resource.data = callback;
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wl_client_add_resource (client, &callback->resource);
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g_array_append_val (surface->compositor->frame_callbacks, callback);
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}
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const struct wl_surface_interface cogland_surface_interface = {
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cogland_surface_destroy,
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cogland_surface_attach_buffer,
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cogland_surface_map_toplevel,
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cogland_surface_map_transient,
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cogland_surface_map_fullscreen,
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cogland_surface_damage
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cogland_surface_damage,
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cogland_surface_frame
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};
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static void
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@ -338,35 +363,30 @@ cogland_surface_free (CoglandSurface *surface)
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cogland_surface_detach_buffer (surface);
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g_slice_free (CoglandSurface, surface);
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}
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static void
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cogland_surface_resource_destroy_cb (struct wl_resource *wayland_resource,
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struct wl_client *wayland_client)
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cogland_surface_resource_destroy_cb (struct wl_resource *resource)
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{
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CoglandSurface *surface =
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container_of (wayland_resource, CoglandSurface, wayland_surface.resource);
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CoglandSurface *surface = resource->data;
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cogland_surface_free (surface);
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}
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static void
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cogland_compositor_create_surface (struct wl_client *wayland_client,
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struct wl_compositor *wayland_compositor,
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guint32 wayland_id)
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struct wl_resource *wayland_compositor_resource,
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guint32 id)
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{
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CoglandCompositor *compositor = container_of (wayland_compositor,
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CoglandCompositor,
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wayland_compositor);
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CoglandCompositor *compositor = wayland_compositor_resource->data;
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CoglandSurface *surface = g_slice_new0 (CoglandSurface);
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surface->compositor = compositor;
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surface->wayland_surface.resource.destroy =
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cogland_surface_resource_destroy_cb;
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surface->wayland_surface.resource.object.id = wayland_id;
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surface->wayland_surface.resource.object.id = id;
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surface->wayland_surface.resource.object.interface = &wl_surface_interface;
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surface->wayland_surface.resource.object.implementation =
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(void (**)(void)) &cogland_surface_interface;
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surface->wayland_surface.client = wayland_client;
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surface->wayland_surface.resource.data = surface;
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wl_client_add_resource (wayland_client, &surface->wayland_surface.resource);
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@ -374,45 +394,64 @@ cogland_compositor_create_surface (struct wl_client *wayland_client,
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surface);
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}
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const static struct wl_compositor_interface cogland_compositor_interface =
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{
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cogland_compositor_create_surface,
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};
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static void
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cogland_output_post_geometry (struct wl_client *wayland_client,
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struct wl_object *wayland_output,
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guint32 version)
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bind_output (struct wl_client *client,
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void *data,
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guint32 version,
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guint32 id)
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{
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CoglandOutput *output =
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container_of (wayland_output, CoglandOutput, wayland_output);
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CoglandOutput *output = data;
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struct wl_resource *resource =
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wl_client_add_object (client, &wl_output_interface, NULL, id, data);
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GList *l;
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wl_client_post_event (wayland_client,
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wayland_output,
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wl_resource_post_event (resource,
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WL_OUTPUT_GEOMETRY,
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output->x, output->y,
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output->width, output->height);
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output->width_mm,
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output->height_mm,
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0, /* subpixel: unknown */
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"unknown", /* make */
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"unknown"); /* model */
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for (l = output->modes; l; l = l->next)
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{
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CoglandMode *mode = l->data;
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wl_resource_post_event (resource,
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WL_OUTPUT_MODE,
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mode->flags,
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mode->width,
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mode->height,
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mode->refresh);
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}
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}
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static void
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cogland_compositor_create_output (CoglandCompositor *compositor,
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int x,
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int y,
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int width,
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int height)
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int width_mm,
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int height_mm)
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{
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CoglandOutput *output = g_slice_new0 (CoglandOutput);
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CoglFramebuffer *fb;
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GError *error = NULL;
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CoglandMode *mode;
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output->x = x;
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output->y = y;
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output->width_mm = width_mm;
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output->height_mm = height_mm;
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output->wayland_output.interface = &wl_output_interface;
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wl_display_add_object (compositor->wayland_display, &output->wayland_output);
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wl_display_add_global (compositor->wayland_display, &output->wayland_output,
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cogland_output_post_geometry);
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wl_display_add_global (compositor->wayland_display,
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&wl_output_interface,
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output,
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bind_output);
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output->onscreen = cogl_onscreen_new (compositor->cogl_context,
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width, height);
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width_mm, height_mm);
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/* Eventually there will be an implicit allocate on first use so this
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* will become optional... */
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fb = COGL_FRAMEBUFFER (output->onscreen);
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@ -430,6 +469,14 @@ cogland_compositor_create_output (CoglandCompositor *compositor,
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cogl_pop_framebuffer ();
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#endif
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mode = g_slice_new0 (CoglandMode);
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mode->flags = 0;
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mode->width = width_mm;
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mode->height = height_mm;
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mode->refresh = 60;
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output->modes = g_list_prepend (output->modes, mode);
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compositor->outputs = g_list_prepend (compositor->outputs, output);
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}
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@ -438,6 +485,7 @@ paint_cb (void *user_data)
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{
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CoglandCompositor *compositor = user_data;
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GList *l;
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int i;
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for (l = compositor->outputs; l; l = l->next)
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{
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@ -452,6 +500,7 @@ paint_cb (void *user_data)
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#else
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cogl_clear (&black, COGL_BUFFER_BIT_COLOR);
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#endif
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cogl_primitive_draw (compositor->triangle);
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for (l2 = compositor->surfaces; l2; l2 = l2->next)
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@ -461,22 +510,107 @@ paint_cb (void *user_data)
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if (surface->buffer)
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{
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CoglTexture2D *texture = surface->buffer->texture;
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cogl_set_source_texture (texture);
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cogl_set_source_texture (COGL_TEXTURE (texture));
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cogl_rectangle (-1, 1, 1, -1);
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}
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wl_display_post_frame (compositor->wayland_display,
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&surface->wayland_surface, get_time ());
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}
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cogl_framebuffer_swap_buffers (fb);
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cogl_pop_framebuffer ();
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}
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for (i = 0; i < compositor->frame_callbacks->len; i++)
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{
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CoglandFrameCallback *callback =
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g_array_index (compositor->frame_callbacks, CoglandFrameCallback *, i);
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wl_resource_post_event (&callback->resource,
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WL_CALLBACK_DONE, get_time ());
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wl_resource_destroy (&callback->resource, 0);
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}
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g_array_set_size (compositor->frame_callbacks, 0);
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return TRUE;
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}
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const static struct wl_compositor_interface cogland_compositor_interface =
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{
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cogland_compositor_create_surface,
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};
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static void
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compositor_bind (struct wl_client *client,
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void *data,
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guint32 version,
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guint32 id)
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{
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CoglandCompositor *compositor = data;
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wl_client_add_object (client, &wl_compositor_interface,
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&cogland_compositor_interface, id, compositor);
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}
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static void
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shell_move(struct wl_client *client,
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struct wl_resource *resource,
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struct wl_resource *surface_resource,
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struct wl_resource *input_resource,
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guint32 time)
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{
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}
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static void
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shell_resize (struct wl_client *client,
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struct wl_resource *resource,
|
||||
struct wl_resource *surface_resource,
|
||||
struct wl_resource *input_resource,
|
||||
guint32 time,
|
||||
guint32 edges)
|
||||
{
|
||||
}
|
||||
|
||||
static void
|
||||
shell_set_toplevel (struct wl_client *client,
|
||||
struct wl_resource *resource,
|
||||
struct wl_resource *surface_resource)
|
||||
{
|
||||
}
|
||||
|
||||
static void
|
||||
shell_set_transient (struct wl_client *client,
|
||||
struct wl_resource *resource,
|
||||
struct wl_resource *surface_resource,
|
||||
struct wl_resource *parent_resource,
|
||||
int x, int y, uint32_t flags)
|
||||
{
|
||||
}
|
||||
|
||||
static void
|
||||
shell_set_fullscreen (struct wl_client *client,
|
||||
struct wl_resource *resource,
|
||||
struct wl_resource *surface_resource)
|
||||
{
|
||||
}
|
||||
|
||||
static const struct wl_shell_interface cogland_shell_interface =
|
||||
{
|
||||
shell_move,
|
||||
shell_resize,
|
||||
shell_set_toplevel,
|
||||
shell_set_transient,
|
||||
shell_set_fullscreen
|
||||
};
|
||||
|
||||
static void
|
||||
bind_shell (struct wl_client *client,
|
||||
void *data,
|
||||
guint32 version,
|
||||
guint32 id)
|
||||
{
|
||||
wl_client_add_object (client, &wl_shell_interface,
|
||||
&cogland_shell_interface, id, data);
|
||||
}
|
||||
|
||||
int
|
||||
main (int argc, char **argv)
|
||||
{
|
||||
@ -495,10 +629,13 @@ main (int argc, char **argv)
|
||||
if (compositor.wayland_display == NULL)
|
||||
g_error ("failed to create wayland display");
|
||||
|
||||
if (wl_compositor_init (&compositor.wayland_compositor,
|
||||
&cogland_compositor_interface,
|
||||
compositor.wayland_display) < 0)
|
||||
g_error ("Failed to init wayland compositor");
|
||||
compositor.frame_callbacks = g_array_new (FALSE, FALSE, sizeof (void *));
|
||||
|
||||
if (!wl_display_add_global (compositor.wayland_display,
|
||||
&wl_compositor_interface,
|
||||
&compositor,
|
||||
compositor_bind))
|
||||
g_error ("Failed to register wayland compositor object");
|
||||
|
||||
compositor.wayland_shm = wl_shm_init (compositor.wayland_display,
|
||||
&shm_callbacks);
|
||||
@ -529,6 +666,10 @@ main (int argc, char **argv)
|
||||
cogland_compositor_create_output (&compositor, 0, 240, 320, 240);
|
||||
cogland_compositor_create_output (&compositor, 320, 240, 320, 240);
|
||||
|
||||
if (wl_display_add_global (compositor.wayland_display, &wl_shell_interface,
|
||||
&compositor, bind_shell) == NULL)
|
||||
g_error ("Failed to register a global shell object");
|
||||
|
||||
if (wl_display_add_socket (compositor.wayland_display, "wayland-0"))
|
||||
g_error ("Failed to create socket");
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user