compositor-wayland: Use non-cast functions to retrieve backend and output objects
This uses container_of instead of explicit cast to retrieve backend and output objects from generic weston_backend and weston_output pointers. Signed-off-by: Armin Krezović <krezovic.armin@gmail.com> Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
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@ -193,6 +193,18 @@ struct wayland_input {
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struct gl_renderer_interface *gl_renderer;
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static inline struct wayland_output *
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to_wayland_output(struct weston_output *base)
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{
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return container_of(base, struct wayland_output, base);
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}
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static inline struct wayland_backend *
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to_wayland_backend(struct weston_compositor *base)
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{
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return container_of(base->backend, struct wayland_backend, base);
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}
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static void
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wayland_shm_buffer_destroy(struct wayland_shm_buffer *buffer)
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{
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@ -229,7 +241,7 @@ static struct wayland_shm_buffer *
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wayland_output_get_shm_buffer(struct wayland_output *output)
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{
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struct wayland_backend *b =
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(struct wayland_backend *) output->base.compositor->backend;
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to_wayland_backend(output->base.compositor);
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struct wl_shm *shm = b->parent.shm;
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struct wayland_shm_buffer *sb;
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@ -434,9 +446,9 @@ wayland_output_update_gl_border(struct wayland_output *output)
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static void
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wayland_output_start_repaint_loop(struct weston_output *output_base)
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{
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struct wayland_output *output = (struct wayland_output *) output_base;
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struct wayland_output *output = to_wayland_output(output_base);
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struct wayland_backend *wb =
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(struct wayland_backend *)output->base.compositor->backend;
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to_wayland_backend(output->base.compositor);
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struct wl_callback *callback;
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/* If this is the initial frame, we need to attach a buffer so that
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@ -460,7 +472,7 @@ static int
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wayland_output_repaint_gl(struct weston_output *output_base,
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pixman_region32_t *damage)
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{
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struct wayland_output *output = (struct wayland_output *) output_base;
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struct wayland_output *output = to_wayland_output(output_base);
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struct weston_compositor *ec = output->base.compositor;
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struct wl_callback *callback;
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@ -567,9 +579,9 @@ static int
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wayland_output_repaint_pixman(struct weston_output *output_base,
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pixman_region32_t *damage)
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{
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struct wayland_output *output = (struct wayland_output *) output_base;
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struct wayland_output *output = to_wayland_output(output_base);
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struct wayland_backend *b =
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(struct wayland_backend *)output->base.compositor->backend;
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to_wayland_backend(output->base.compositor);
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struct wl_callback *callback;
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struct wayland_shm_buffer *sb;
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@ -607,9 +619,9 @@ wayland_output_repaint_pixman(struct weston_output *output_base,
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static void
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wayland_output_destroy(struct weston_output *output_base)
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{
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struct wayland_output *output = (struct wayland_output *) output_base;
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struct wayland_output *output = to_wayland_output(output_base);
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struct wayland_backend *b =
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(struct wayland_backend *) output->base.compositor->backend;
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to_wayland_backend(output->base.compositor);
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if (b->use_pixman) {
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pixman_renderer_output_destroy(output_base);
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@ -684,7 +696,7 @@ static void
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wayland_output_resize_surface(struct wayland_output *output)
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{
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struct wayland_backend *b =
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(struct wayland_backend *)output->base.compositor->backend;
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to_wayland_backend(output->base.compositor);
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struct wayland_shm_buffer *buffer, *next;
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int32_t ix, iy, iwidth, iheight;
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int32_t width, height;
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@ -761,7 +773,7 @@ static int
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wayland_output_set_windowed(struct wayland_output *output)
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{
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struct wayland_backend *b =
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(struct wayland_backend *)output->base.compositor->backend;
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to_wayland_backend(output->base.compositor);
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int tlen;
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char *title;
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@ -808,7 +820,7 @@ wayland_output_set_fullscreen(struct wayland_output *output,
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uint32_t framerate, struct wl_output *target)
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{
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struct wayland_backend *b =
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(struct wayland_backend *)output->base.compositor->backend;
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to_wayland_backend(output->base.compositor);
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if (output->frame) {
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frame_destroy(output->frame);
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@ -898,7 +910,7 @@ static int
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wayland_output_switch_mode(struct weston_output *output_base,
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struct weston_mode *mode)
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{
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struct wayland_output *output = (struct wayland_output *) output_base;
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struct wayland_output *output = to_wayland_output(output_base);
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struct wayland_backend *b;
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struct wl_surface *old_surface;
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struct weston_mode *old_mode;
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@ -916,7 +928,7 @@ wayland_output_switch_mode(struct weston_output *output_base,
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return -1;
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}
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b = (struct wayland_backend *)output_base->compositor->backend;
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b = to_wayland_backend(output_base->compositor);
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if (output->parent.shell_surface || !b->parent.fshell)
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return -1;
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@ -2105,7 +2117,7 @@ wayland_restore(struct weston_compositor *ec)
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static void
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wayland_destroy(struct weston_compositor *ec)
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{
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struct wayland_backend *b = (struct wayland_backend *) ec->backend;
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struct wayland_backend *b = to_wayland_backend(ec);
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weston_compositor_shutdown(ec);
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