2 * Copyright © 2008-2011 Kristian Høgsberg
3 * Copyright © 2011 Intel Corporation
5 * Permission to use, copy, modify, distribute, and sell this software and
6 * its documentation for any purpose is hereby granted without fee, provided
7 * that the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of the copyright holders not be used in
10 * advertising or publicity pertaining to distribution of the software
11 * without specific, written prior permission. The copyright holders make
12 * no representations about the suitability of this software for any
13 * purpose. It is provided "as is" without express or implied warranty.
15 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
16 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
17 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
18 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
19 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
20 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
21 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
31 #include <linux/input.h>
35 #include <xf86drmMode.h>
36 #include <drm_fourcc.h>
39 #include <libbacklight.h>
42 #include "compositor.h"
44 #include "launcher-util.h"
46 static int option_current_mode = 0;
47 static char *output_name;
48 static char *output_mode;
49 static char *output_transform;
50 static struct wl_list configured_output_list;
53 OUTPUT_CONFIG_INVALID = 0,
55 OUTPUT_CONFIG_PREFERRED,
56 OUTPUT_CONFIG_CURRENT,
58 OUTPUT_CONFIG_MODELINE
61 struct drm_configured_output {
65 int32_t width, height;
66 drmModeModeInfo crtc_mode;
67 enum output_config config;
71 struct drm_compositor {
72 struct weston_compositor base;
75 struct wl_event_source *drm_source;
77 struct udev_monitor *udev_monitor;
78 struct wl_event_source *udev_drm_source;
84 struct gbm_device *gbm;
87 uint32_t crtc_allocator;
88 uint32_t connector_allocator;
91 /* we need these parameters in order to not fail drmModeAddFB2()
92 * due to out of bounds dimensions, and then mistakenly set
95 int32_t min_width, max_width;
96 int32_t min_height, max_height;
98 struct wl_list sprite_list;
99 int sprites_are_broken;
102 int cursors_are_broken;
108 struct weston_mode base;
109 drmModeModeInfo mode_info;
116 struct drm_output *output;
118 int is_client_buffer;
119 struct wl_buffer *buffer;
120 struct wl_listener buffer_destroy_listener;
124 struct weston_output base;
129 uint32_t connector_id;
130 drmModeCrtcPtr original_crtc;
133 int page_flip_pending;
135 struct gbm_surface *surface;
136 struct gbm_bo *cursor_bo[2];
137 struct weston_plane cursor_plane;
138 struct weston_plane fb_plane;
139 struct weston_surface *cursor_surface;
141 struct drm_fb *current, *next;
142 struct backlight *backlight;
146 * An output has a primary display plane plus zero or more sprites for
147 * blending display contents.
153 uint32_t pending_fb_id;
154 struct weston_surface *surface;
155 struct weston_surface *pending_surface;
156 struct weston_plane plane;
158 struct drm_output *output;
160 struct drm_compositor *compositor;
162 struct wl_listener destroy_listener;
163 struct wl_listener pending_destroy_listener;
165 uint32_t possible_crtcs;
167 uint32_t count_formats;
169 int32_t src_x, src_y;
170 uint32_t src_w, src_h;
171 uint32_t dest_x, dest_y;
172 uint32_t dest_w, dest_h;
178 struct weston_seat base;
179 struct wl_list devices_list;
180 struct udev_monitor *udev_monitor;
181 struct wl_event_source *udev_monitor_source;
186 drm_output_set_cursor(struct drm_output *output);
189 drm_sprite_crtc_supported(struct weston_output *output_base, uint32_t supported)
191 struct weston_compositor *ec = output_base->compositor;
192 struct drm_compositor *c =(struct drm_compositor *) ec;
193 struct drm_output *output = (struct drm_output *) output_base;
196 for (crtc = 0; crtc < c->num_crtcs; crtc++) {
197 if (c->crtcs[crtc] != output->crtc_id)
200 if (supported & (1 << crtc))
208 drm_fb_destroy_callback(struct gbm_bo *bo, void *data)
210 struct drm_fb *fb = data;
211 struct gbm_device *gbm = gbm_bo_get_device(bo);
214 drmModeRmFB(gbm_device_get_fd(gbm), fb->fb_id);
217 weston_buffer_post_release(fb->buffer);
218 wl_list_remove(&fb->buffer_destroy_listener.link);
224 static struct drm_fb *
225 drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_output *output)
227 struct drm_fb *fb = gbm_bo_get_user_data(bo);
228 struct drm_compositor *compositor =
229 (struct drm_compositor *) output->base.compositor;
230 uint32_t width, height, stride, handle;
236 fb = malloc(sizeof *fb);
240 fb->is_client_buffer = 0;
243 width = gbm_bo_get_width(bo);
244 height = gbm_bo_get_height(bo);
245 stride = gbm_bo_get_stride(bo);
246 handle = gbm_bo_get_handle(bo).u32;
248 ret = drmModeAddFB(compositor->drm.fd, width, height, 24, 32,
249 stride, handle, &fb->fb_id);
251 weston_log("failed to create kms fb: %m\n");
256 gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback);
262 fb_handle_buffer_destroy(struct wl_listener *listener, void *data)
264 struct drm_fb *fb = container_of(listener, struct drm_fb,
265 buffer_destroy_listener);
269 if (fb == fb->output->next ||
270 (fb == fb->output->current && !fb->output->next))
271 weston_output_schedule_repaint(&fb->output->base);
275 drm_output_check_scanout_format(struct drm_output *output,
276 struct weston_surface *es, struct gbm_bo *bo)
282 format = gbm_bo_get_format(bo);
284 if (format == GBM_FORMAT_XRGB8888)
286 else if (format == GBM_FORMAT_ARGB8888) {
287 /* We can only scanout an ARGB buffer if the surface's
288 * opaque region covers the whole output */
289 pixman_region32_init(&r);
290 pixman_region32_subtract(&r, &output->base.region,
293 if (!pixman_region32_not_empty(&r))
296 pixman_region32_fini(&r);
302 static struct weston_plane *
303 drm_output_prepare_scanout_surface(struct weston_output *_output,
304 struct weston_surface *es)
306 struct drm_output *output = (struct drm_output *) _output;
307 struct drm_compositor *c =
308 (struct drm_compositor *) output->base.compositor;
311 if (es->geometry.x != output->base.x ||
312 es->geometry.y != output->base.y ||
313 es->geometry.width != output->base.current->width ||
314 es->geometry.height != output->base.current->height ||
315 es->transform.enabled ||
319 bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
320 es->buffer, GBM_BO_USE_SCANOUT);
322 /* Unable to use the buffer for scanout */
326 if (!drm_output_check_scanout_format(output, es, bo)) {
331 output->next = drm_fb_get_from_bo(bo, output);
337 output->next->is_client_buffer = 1;
338 output->next->buffer = es->buffer;
339 output->next->buffer->busy_count++;
340 output->next->buffer_destroy_listener.notify = fb_handle_buffer_destroy;
342 wl_signal_add(&output->next->buffer->resource.destroy_signal,
343 &output->next->buffer_destroy_listener);
345 return &output->fb_plane;
349 drm_output_render(struct drm_output *output, pixman_region32_t *damage)
351 struct weston_compositor *ec = output->base.compositor;
354 ec->renderer->repaint_output(&output->base, damage);
356 pixman_region32_subtract(&ec->primary_plane.damage,
357 &ec->primary_plane.damage, damage);
359 bo = gbm_surface_lock_front_buffer(output->surface);
361 weston_log("failed to lock front buffer: %m\n");
365 output->next = drm_fb_get_from_bo(bo, output);
367 weston_log("failed to get drm_fb for bo\n");
368 gbm_surface_release_buffer(output->surface, bo);
374 drm_output_repaint(struct weston_output *output_base,
375 pixman_region32_t *damage)
377 struct drm_output *output = (struct drm_output *) output_base;
378 struct drm_compositor *compositor =
379 (struct drm_compositor *) output->base.compositor;
380 struct drm_sprite *s;
381 struct drm_mode *mode;
385 drm_output_render(output, damage);
389 mode = container_of(output->base.current, struct drm_mode, base);
390 if (!output->current) {
391 ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id,
392 output->next->fb_id, 0, 0,
393 &output->connector_id, 1,
396 weston_log("set mode failed: %m\n");
401 if (drmModePageFlip(compositor->drm.fd, output->crtc_id,
403 DRM_MODE_PAGE_FLIP_EVENT, output) < 0) {
404 weston_log("queueing pageflip failed: %m\n");
408 output->page_flip_pending = 1;
410 drm_output_set_cursor(output);
413 * Now, update all the sprite surfaces
415 wl_list_for_each(s, &compositor->sprite_list, link) {
418 .request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT,
419 .request.sequence = 1,
422 if (!drm_sprite_crtc_supported(output_base, s->possible_crtcs))
425 ret = drmModeSetPlane(compositor->drm.fd, s->plane_id,
427 compositor->sprites_hidden ?
428 0 : s->pending_fb_id,
430 s->dest_x, s->dest_y,
431 s->dest_w, s->dest_h,
435 weston_log("setplane failed: %d: %s\n",
436 ret, strerror(errno));
438 if (output->pipe > 0)
439 vbl.request.type |= DRM_VBLANK_SECONDARY;
442 * Queue a vblank signal so we know when the surface
443 * becomes active on the display or has been replaced.
445 vbl.request.signal = (unsigned long)s;
446 ret = drmWaitVBlank(compositor->drm.fd, &vbl);
448 weston_log("vblank event request failed: %d: %s\n",
449 ret, strerror(errno));
453 output->vblank_pending = 1;
460 vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec,
463 struct drm_sprite *s = (struct drm_sprite *)data;
464 struct drm_compositor *c = s->compositor;
465 struct drm_output *output = s->output;
468 output->vblank_pending = 0;
471 weston_buffer_post_release(s->surface->buffer);
472 wl_list_remove(&s->destroy_listener.link);
474 drmModeRmFB(c->drm.fd, s->fb_id);
478 if (s->pending_surface) {
479 wl_list_remove(&s->pending_destroy_listener.link);
480 wl_signal_add(&s->pending_surface->buffer->resource.destroy_signal,
481 &s->destroy_listener);
482 s->surface = s->pending_surface;
483 s->pending_surface = NULL;
484 s->fb_id = s->pending_fb_id;
485 s->pending_fb_id = 0;
488 if (!output->page_flip_pending) {
489 msecs = sec * 1000 + usec / 1000;
490 weston_output_finish_frame(&output->base, msecs);
495 page_flip_handler(int fd, unsigned int frame,
496 unsigned int sec, unsigned int usec, void *data)
498 struct drm_output *output = (struct drm_output *) data;
501 output->page_flip_pending = 0;
503 if (output->current) {
504 if (output->current->is_client_buffer)
505 gbm_bo_destroy(output->current->bo);
507 gbm_surface_release_buffer(output->surface,
508 output->current->bo);
511 output->current = output->next;
514 if (!output->vblank_pending) {
515 msecs = sec * 1000 + usec / 1000;
516 weston_output_finish_frame(&output->base, msecs);
521 drm_surface_format_supported(struct drm_sprite *s, uint32_t format)
525 for (i = 0; i < s->count_formats; i++)
526 if (s->formats[i] == format)
533 drm_surface_transform_supported(struct weston_surface *es)
535 struct weston_matrix *matrix = &es->transform.matrix;
538 if (!es->transform.enabled)
541 for (i = 0; i < 16; i++) {
545 if (matrix->d[i] != 1.0)
554 if (matrix->d[i] != 0.0)
563 static struct weston_plane *
564 drm_output_prepare_overlay_surface(struct weston_output *output_base,
565 struct weston_surface *es)
567 struct weston_compositor *ec = output_base->compositor;
568 struct drm_compositor *c =(struct drm_compositor *) ec;
569 struct drm_sprite *s;
571 EGLint handle, stride;
574 uint32_t handles[4], pitches[4], offsets[4];
576 pixman_region32_t dest_rect, src_rect;
579 wl_fixed_t sx1, sy1, sx2, sy2;
580 int32_t width, height;
582 if (c->sprites_are_broken)
585 if (es->output_mask != (1u << output_base->id))
588 if (es->buffer == NULL)
591 if (es->alpha != 1.0f)
594 if (wl_buffer_is_shm(es->buffer))
597 if (!drm_surface_transform_supported(es))
600 wl_list_for_each(s, &c->sprite_list, link) {
601 if (!drm_sprite_crtc_supported(output_base, s->possible_crtcs))
604 if (!s->pending_fb_id) {
610 /* No sprites available */
614 width = es->geometry.width;
615 height = es->geometry.height;
617 /* If geometry is out of bounds, don't even bother trying because
618 * we know the AddFB2() call will fail:
620 if (c->min_width > width || width > c->max_width ||
621 c->min_height > height || height > c->max_height)
624 bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
625 es->buffer, GBM_BO_USE_SCANOUT);
629 format = gbm_bo_get_format(bo);
630 handle = gbm_bo_get_handle(bo).s32;
631 stride = gbm_bo_get_stride(bo);
635 if (!drm_surface_format_supported(s, format))
645 ret = drmModeAddFB2(c->drm.fd, width, height,
646 format, handles, pitches, offsets,
649 weston_log("addfb2 failed: %d\n", ret);
650 c->sprites_are_broken = 1;
654 s->pending_fb_id = fb_id;
655 s->pending_surface = es;
656 es->buffer->busy_count++;
658 box = pixman_region32_extents(&es->transform.boundingbox);
659 s->plane.x = box->x1;
660 s->plane.y = box->y1;
663 * Calculate the source & dest rects properly based on actual
664 * position (note the caller has called weston_surface_update_transform()
667 pixman_region32_init(&dest_rect);
668 pixman_region32_intersect(&dest_rect, &es->transform.boundingbox,
669 &output_base->region);
670 pixman_region32_translate(&dest_rect, -output_base->x, -output_base->y);
671 box = pixman_region32_extents(&dest_rect);
674 s->dest_w = box->x2 - box->x1;
675 s->dest_h = box->y2 - box->y1;
676 pixman_region32_fini(&dest_rect);
678 pixman_region32_init(&src_rect);
679 pixman_region32_intersect(&src_rect, &es->transform.boundingbox,
680 &output_base->region);
681 box = pixman_region32_extents(&src_rect);
683 weston_surface_from_global_fixed(es,
684 wl_fixed_from_int(box->x1),
685 wl_fixed_from_int(box->y1),
687 weston_surface_from_global_fixed(es,
688 wl_fixed_from_int(box->x2),
689 wl_fixed_from_int(box->y2),
696 if (sx2 > wl_fixed_from_int(es->geometry.width))
697 sx2 = wl_fixed_from_int(es->geometry.width);
698 if (sy2 > wl_fixed_from_int(es->geometry.height))
699 sy2 = wl_fixed_from_int(es->geometry.height);
703 s->src_w = (sx2 - sx1) << 8;
704 s->src_h = (sy2 - sy1) << 8;
705 pixman_region32_fini(&src_rect);
707 wl_signal_add(&es->buffer->resource.destroy_signal,
708 &s->pending_destroy_listener);
713 static struct weston_plane *
714 drm_output_prepare_cursor_surface(struct weston_output *output_base,
715 struct weston_surface *es)
717 struct drm_compositor *c =
718 (struct drm_compositor *) output_base->compositor;
719 struct drm_output *output = (struct drm_output *) output_base;
721 if (output->cursor_surface)
723 if (es->output_mask != (1u << output_base->id))
725 if (c->cursors_are_broken)
727 if (es->buffer == NULL || !wl_buffer_is_shm(es->buffer) ||
728 es->geometry.width > 64 || es->geometry.height > 64)
731 output->cursor_surface = es;
733 return &output->cursor_plane;
737 drm_output_set_cursor(struct drm_output *output)
739 struct weston_surface *es = output->cursor_surface;
740 struct drm_compositor *c =
741 (struct drm_compositor *) output->base.compositor;
742 EGLint handle, stride;
744 uint32_t buf[64 * 64];
748 output->cursor_surface = NULL;
750 drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
754 if (es->buffer && pixman_region32_not_empty(&output->cursor_plane.damage)) {
755 pixman_region32_fini(&output->cursor_plane.damage);
756 pixman_region32_init(&output->cursor_plane.damage);
757 output->current_cursor ^= 1;
758 bo = output->cursor_bo[output->current_cursor];
759 memset(buf, 0, sizeof buf);
760 stride = wl_shm_buffer_get_stride(es->buffer);
761 s = wl_shm_buffer_get_data(es->buffer);
762 for (i = 0; i < es->geometry.height; i++)
763 memcpy(buf + i * 64, s + i * stride,
764 es->geometry.width * 4);
766 if (gbm_bo_write(bo, buf, sizeof buf) < 0)
767 weston_log("failed update cursor: %m\n");
769 handle = gbm_bo_get_handle(bo).s32;
770 if (drmModeSetCursor(c->drm.fd,
771 output->crtc_id, handle, 64, 64)) {
772 weston_log("failed to set cursor: %m\n");
773 c->cursors_are_broken = 1;
777 x = es->geometry.x - output->base.x;
778 y = es->geometry.y - output->base.y;
779 if (output->cursor_plane.x != x || output->cursor_plane.y != y) {
780 if (drmModeMoveCursor(c->drm.fd, output->crtc_id, x, y)) {
781 weston_log("failed to move cursor: %m\n");
782 c->cursors_are_broken = 1;
785 output->cursor_plane.x = x;
786 output->cursor_plane.y = y;
791 drm_assign_planes(struct weston_output *output)
793 struct drm_compositor *c =
794 (struct drm_compositor *) output->compositor;
795 struct drm_output *drm_output = (struct drm_output *) output;
796 struct drm_sprite *s;
797 struct weston_surface *es, *next;
798 pixman_region32_t overlap, surface_overlap;
799 struct weston_plane *primary, *next_plane;
801 /* Reset the opaque region of the planes */
802 pixman_region32_fini(&drm_output->cursor_plane.opaque);
803 pixman_region32_init(&drm_output->cursor_plane.opaque);
804 pixman_region32_fini(&drm_output->fb_plane.opaque);
805 pixman_region32_init(&drm_output->fb_plane.opaque);
807 wl_list_for_each (s, &c->sprite_list, link) {
808 if (!drm_sprite_crtc_supported(output, s->possible_crtcs))
811 pixman_region32_fini(&s->plane.opaque);
812 pixman_region32_init(&s->plane.opaque);
816 * Find a surface for each sprite in the output using some heuristics:
818 * 2) frequency of update
819 * 3) opacity (though some hw might support alpha blending)
820 * 4) clipping (this can be fixed with color keys)
822 * The idea is to save on blitting since this should save power.
823 * If we can get a large video surface on the sprite for example,
824 * the main display surface may not need to update at all, and
825 * the client buffer can be used directly for the sprite surface
826 * as we do for flipping full screen surfaces.
828 pixman_region32_init(&overlap);
829 primary = &c->base.primary_plane;
830 wl_list_for_each_safe(es, next, &c->base.surface_list, link) {
831 pixman_region32_init(&surface_overlap);
832 pixman_region32_intersect(&surface_overlap, &overlap,
833 &es->transform.boundingbox);
836 if (pixman_region32_not_empty(&surface_overlap))
837 next_plane = primary;
838 if (next_plane == NULL)
839 next_plane = drm_output_prepare_cursor_surface(output, es);
840 if (next_plane == NULL)
841 next_plane = drm_output_prepare_scanout_surface(output, es);
842 if (next_plane == NULL)
843 next_plane = drm_output_prepare_overlay_surface(output, es);
844 if (next_plane == NULL)
845 next_plane = primary;
846 weston_surface_move_to_plane(es, next_plane);
847 if (next_plane == primary)
848 pixman_region32_union(&overlap, &overlap,
849 &es->transform.boundingbox);
851 pixman_region32_fini(&surface_overlap);
853 pixman_region32_fini(&overlap);
857 drm_output_destroy(struct weston_output *output_base)
859 struct drm_output *output = (struct drm_output *) output_base;
860 struct drm_compositor *c =
861 (struct drm_compositor *) output->base.compositor;
862 drmModeCrtcPtr origcrtc = output->original_crtc;
864 if (output->backlight)
865 backlight_destroy(output->backlight);
867 /* Turn off hardware cursor */
868 drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
870 /* Restore original CRTC state */
871 drmModeSetCrtc(c->drm.fd, origcrtc->crtc_id, origcrtc->buffer_id,
872 origcrtc->x, origcrtc->y,
873 &output->connector_id, 1, &origcrtc->mode);
874 drmModeFreeCrtc(origcrtc);
876 c->crtc_allocator &= ~(1 << output->crtc_id);
877 c->connector_allocator &= ~(1 << output->connector_id);
879 eglDestroySurface(c->base.egl_display, output->base.egl_surface);
880 gbm_surface_destroy(output->surface);
882 weston_plane_release(&output->fb_plane);
883 weston_plane_release(&output->cursor_plane);
885 weston_output_destroy(&output->base);
886 wl_list_remove(&output->base.link);
892 static struct drm_mode *
893 choose_mode (struct drm_output *output, struct weston_mode *target_mode)
895 struct drm_mode *tmp_mode = NULL, *mode;
897 if (output->base.current->width == target_mode->width &&
898 output->base.current->height == target_mode->height &&
899 (output->base.current->refresh == target_mode->refresh ||
900 target_mode->refresh == 0))
901 return (struct drm_mode *)output->base.current;
903 wl_list_for_each(mode, &output->base.mode_list, base.link) {
904 if (mode->mode_info.hdisplay == target_mode->width &&
905 mode->mode_info.vdisplay == target_mode->height) {
906 if (mode->mode_info.vrefresh == target_mode->refresh ||
907 target_mode->refresh == 0) {
909 } else if (!tmp_mode)
918 drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode)
920 struct drm_output *output;
921 struct drm_mode *drm_mode;
923 struct drm_compositor *ec;
924 struct gbm_surface *surface;
925 EGLSurface egl_surface;
927 if (output_base == NULL) {
928 weston_log("output is NULL.\n");
933 weston_log("mode is NULL.\n");
937 ec = (struct drm_compositor *)output_base->compositor;
938 output = (struct drm_output *)output_base;
939 drm_mode = choose_mode (output, mode);
942 weston_log("%s, invalid resolution:%dx%d\n", __func__, mode->width, mode->height);
944 } else if (&drm_mode->base == output->base.current) {
946 } else if (drm_mode->base.width == output->base.current->width &&
947 drm_mode->base.height == output->base.current->height) {
948 /* only change refresh value */
949 ret = drmModeSetCrtc(ec->drm.fd,
951 output->current->fb_id, 0, 0,
952 &output->connector_id, 1, &drm_mode->mode_info);
955 weston_log("failed to set mode (%dx%d) %u Hz\n",
956 drm_mode->base.width,
957 drm_mode->base.height,
958 drm_mode->base.refresh / 1000);
961 output->base.current->flags = 0;
962 output->base.current = &drm_mode->base;
963 drm_mode->base.flags =
964 WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
971 drm_mode->base.flags =
972 WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
974 surface = gbm_surface_create(ec->gbm,
975 drm_mode->base.width,
976 drm_mode->base.height,
979 GBM_BO_USE_RENDERING);
981 weston_log("failed to create gbm surface\n");
986 eglCreateWindowSurface(ec->base.egl_display,
990 if (egl_surface == EGL_NO_SURFACE) {
991 weston_log("failed to create egl surface\n");
995 ret = drmModeSetCrtc(ec->drm.fd,
997 output->current->fb_id, 0, 0,
998 &output->connector_id, 1, &drm_mode->mode_info);
1000 weston_log("failed to set mode\n");
1004 /* reset rendering stuff. */
1005 if (output->current) {
1006 if (output->current->is_client_buffer)
1007 gbm_bo_destroy(output->current->bo);
1009 gbm_surface_release_buffer(output->surface,
1010 output->current->bo);
1012 output->current = NULL;
1015 if (output->next->is_client_buffer)
1016 gbm_bo_destroy(output->next->bo);
1018 gbm_surface_release_buffer(output->surface,
1021 output->next = NULL;
1023 eglDestroySurface(ec->base.egl_display, output->base.egl_surface);
1024 gbm_surface_destroy(output->surface);
1025 output->base.egl_surface = egl_surface;
1026 output->surface = surface;
1029 output->base.current = &drm_mode->base;
1030 output->base.dirty = 1;
1031 weston_output_move(&output->base, output->base.x, output->base.y);
1035 eglDestroySurface(ec->base.egl_display, egl_surface);
1036 gbm_surface_destroy(surface);
1041 on_drm_input(int fd, uint32_t mask, void *data)
1043 drmEventContext evctx;
1045 memset(&evctx, 0, sizeof evctx);
1046 evctx.version = DRM_EVENT_CONTEXT_VERSION;
1047 evctx.page_flip_handler = page_flip_handler;
1048 evctx.vblank_handler = vblank_handler;
1049 drmHandleEvent(fd, &evctx);
1055 init_egl(struct drm_compositor *ec, struct udev_device *device)
1057 EGLint major, minor, n;
1058 const char *filename, *sysnum;
1060 static const EGLint config_attribs[] = {
1061 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
1066 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
1070 sysnum = udev_device_get_sysnum(device);
1072 ec->drm.id = atoi(sysnum);
1073 if (!sysnum || ec->drm.id < 0) {
1074 weston_log("cannot get device sysnum\n");
1078 filename = udev_device_get_devnode(device);
1079 fd = open(filename, O_RDWR | O_CLOEXEC);
1081 /* Probably permissions error */
1082 weston_log("couldn't open %s, skipping\n",
1083 udev_device_get_devnode(device));
1087 weston_log("using %s\n", filename);
1090 ec->gbm = gbm_create_device(ec->drm.fd);
1091 ec->base.egl_display = eglGetDisplay(ec->gbm);
1092 if (ec->base.egl_display == NULL) {
1093 weston_log("failed to create display\n");
1097 if (!eglInitialize(ec->base.egl_display, &major, &minor)) {
1098 weston_log("failed to initialize display\n");
1102 if (!eglChooseConfig(ec->base.egl_display, config_attribs,
1103 &ec->base.egl_config, 1, &n) || n != 1) {
1104 weston_log("failed to choose config: %d\n", n);
1111 static struct drm_mode *
1112 drm_output_add_mode(struct drm_output *output, drmModeModeInfo *info)
1114 struct drm_mode *mode;
1117 mode = malloc(sizeof *mode);
1121 mode->base.flags = 0;
1122 mode->base.width = info->hdisplay;
1123 mode->base.height = info->vdisplay;
1125 /* Calculate higher precision (mHz) refresh rate */
1126 refresh = (info->clock * 1000000LL / info->htotal +
1127 info->vtotal / 2) / info->vtotal;
1129 if (info->flags & DRM_MODE_FLAG_INTERLACE)
1131 if (info->flags & DRM_MODE_FLAG_DBLSCAN)
1133 if (info->vscan > 1)
1134 refresh /= info->vscan;
1136 mode->base.refresh = refresh;
1137 mode->mode_info = *info;
1139 if (info->type & DRM_MODE_TYPE_PREFERRED)
1140 mode->base.flags |= WL_OUTPUT_MODE_PREFERRED;
1142 wl_list_insert(output->base.mode_list.prev, &mode->base.link);
1148 drm_subpixel_to_wayland(int drm_value)
1150 switch (drm_value) {
1152 case DRM_MODE_SUBPIXEL_UNKNOWN:
1153 return WL_OUTPUT_SUBPIXEL_UNKNOWN;
1154 case DRM_MODE_SUBPIXEL_NONE:
1155 return WL_OUTPUT_SUBPIXEL_NONE;
1156 case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB:
1157 return WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB;
1158 case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR:
1159 return WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR;
1160 case DRM_MODE_SUBPIXEL_VERTICAL_RGB:
1161 return WL_OUTPUT_SUBPIXEL_VERTICAL_RGB;
1162 case DRM_MODE_SUBPIXEL_VERTICAL_BGR:
1163 return WL_OUTPUT_SUBPIXEL_VERTICAL_BGR;
1168 sprite_handle_buffer_destroy(struct wl_listener *listener, void *data)
1170 struct drm_sprite *sprite =
1171 container_of(listener, struct drm_sprite,
1173 struct drm_compositor *compositor = sprite->compositor;
1175 sprite->surface = NULL;
1176 drmModeRmFB(compositor->drm.fd, sprite->fb_id);
1181 sprite_handle_pending_buffer_destroy(struct wl_listener *listener, void *data)
1183 struct drm_sprite *sprite =
1184 container_of(listener, struct drm_sprite,
1185 pending_destroy_listener);
1186 struct drm_compositor *compositor = sprite->compositor;
1188 sprite->pending_surface = NULL;
1189 drmModeRmFB(compositor->drm.fd, sprite->pending_fb_id);
1190 sprite->pending_fb_id = 0;
1193 /* returns a value between 0-255 range, where higher is brighter */
1195 drm_get_backlight(struct drm_output *output)
1197 long brightness, max_brightness, norm;
1199 brightness = backlight_get_brightness(output->backlight);
1200 max_brightness = backlight_get_max_brightness(output->backlight);
1202 /* convert it on a scale of 0 to 255 */
1203 norm = (brightness * 255)/(max_brightness);
1205 return (uint32_t) norm;
1208 /* values accepted are between 0-255 range */
1210 drm_set_backlight(struct weston_output *output_base, uint32_t value)
1212 struct drm_output *output = (struct drm_output *) output_base;
1213 long max_brightness, new_brightness;
1215 if (!output->backlight)
1221 max_brightness = backlight_get_max_brightness(output->backlight);
1223 /* get denormalized value */
1224 new_brightness = (value * max_brightness) / 255;
1226 backlight_set_brightness(output->backlight, new_brightness);
1229 static drmModePropertyPtr
1230 drm_get_prop(int fd, drmModeConnectorPtr connector, const char *name)
1232 drmModePropertyPtr props;
1235 for (i = 0; i < connector->count_props; i++) {
1236 props = drmModeGetProperty(fd, connector->props[i]);
1240 if (!strcmp(props->name, name))
1243 drmModeFreeProperty(props);
1250 drm_set_dpms(struct weston_output *output_base, enum dpms_enum level)
1252 struct drm_output *output = (struct drm_output *) output_base;
1253 struct weston_compositor *ec = output_base->compositor;
1254 struct drm_compositor *c = (struct drm_compositor *) ec;
1255 drmModeConnectorPtr connector;
1256 drmModePropertyPtr prop;
1258 connector = drmModeGetConnector(c->drm.fd, output->connector_id);
1262 prop = drm_get_prop(c->drm.fd, connector, "DPMS");
1264 drmModeFreeConnector(connector);
1268 drmModeConnectorSetProperty(c->drm.fd, connector->connector_id,
1269 prop->prop_id, level);
1270 drmModeFreeProperty(prop);
1271 drmModeFreeConnector(connector);
1274 static const char *connector_type_names[] = {
1293 find_crtc_for_connector(struct drm_compositor *ec,
1294 drmModeRes *resources, drmModeConnector *connector)
1296 drmModeEncoder *encoder;
1297 uint32_t possible_crtcs;
1300 for (j = 0; j < connector->count_encoders; j++) {
1301 encoder = drmModeGetEncoder(ec->drm.fd, connector->encoders[j]);
1302 if (encoder == NULL) {
1303 weston_log("Failed to get encoder.\n");
1306 possible_crtcs = encoder->possible_crtcs;
1307 drmModeFreeEncoder(encoder);
1309 for (i = 0; i < resources->count_crtcs; i++) {
1310 if (possible_crtcs & (1 << i) &&
1311 !(ec->crtc_allocator & (1 << resources->crtcs[i])))
1320 create_output_for_connector(struct drm_compositor *ec,
1321 drmModeRes *resources,
1322 drmModeConnector *connector,
1323 int x, int y, struct udev_device *drm_device)
1325 struct drm_output *output;
1326 struct drm_mode *drm_mode, *next, *preferred, *current, *configured;
1327 struct weston_mode *m;
1328 struct drm_configured_output *o = NULL, *temp;
1329 drmModeEncoder *encoder;
1330 drmModeModeInfo crtc_mode;
1334 const char *type_name;
1336 i = find_crtc_for_connector(ec, resources, connector);
1338 weston_log("No usable crtc/encoder pair for connector.\n");
1342 output = malloc(sizeof *output);
1346 memset(output, 0, sizeof *output);
1347 output->base.subpixel = drm_subpixel_to_wayland(connector->subpixel);
1348 output->base.make = "unknown";
1349 output->base.model = "unknown";
1350 wl_list_init(&output->base.mode_list);
1352 if (connector->connector_type < ARRAY_LENGTH(connector_type_names))
1353 type_name = connector_type_names[connector->connector_type];
1355 type_name = "UNKNOWN";
1356 snprintf(name, 32, "%s%d", type_name, connector->connector_type_id);
1357 output->name = strdup(name);
1359 output->crtc_id = resources->crtcs[i];
1361 ec->crtc_allocator |= (1 << output->crtc_id);
1362 output->connector_id = connector->connector_id;
1363 ec->connector_allocator |= (1 << output->connector_id);
1365 output->original_crtc = drmModeGetCrtc(ec->drm.fd, output->crtc_id);
1367 /* Get the current mode on the crtc that's currently driving
1368 * this connector. */
1369 encoder = drmModeGetEncoder(ec->drm.fd, connector->encoder_id);
1370 memset(&crtc_mode, 0, sizeof crtc_mode);
1371 if (encoder != NULL) {
1372 crtc = drmModeGetCrtc(ec->drm.fd, encoder->crtc_id);
1373 drmModeFreeEncoder(encoder);
1376 if (crtc->mode_valid)
1377 crtc_mode = crtc->mode;
1378 drmModeFreeCrtc(crtc);
1381 for (i = 0; i < connector->count_modes; i++) {
1382 drm_mode = drm_output_add_mode(output, &connector->modes[i]);
1391 wl_list_for_each(temp, &configured_output_list, link) {
1392 if (strcmp(temp->name, output->name) == 0) {
1394 weston_log("%s mode \"%s\" in config\n",
1395 temp->name, temp->mode);
1401 if (o && o->config == OUTPUT_CONFIG_OFF) {
1402 weston_log("Disabling output %s\n", o->name);
1404 drmModeSetCrtc(ec->drm.fd, output->crtc_id,
1405 0, 0, 0, 0, 0, NULL);
1409 wl_list_for_each(drm_mode, &output->base.mode_list, base.link) {
1410 if (o && o->config == OUTPUT_CONFIG_MODE &&
1411 o->width == drm_mode->base.width &&
1412 o->height == drm_mode->base.height)
1413 configured = drm_mode;
1414 if (!memcmp(&crtc_mode, &drm_mode->mode_info, sizeof crtc_mode))
1416 if (drm_mode->base.flags & WL_OUTPUT_MODE_PREFERRED)
1417 preferred = drm_mode;
1420 if (o && o->config == OUTPUT_CONFIG_MODELINE) {
1421 configured = drm_output_add_mode(output, &o->crtc_mode);
1424 current = configured;
1427 if (current == NULL && crtc_mode.clock != 0) {
1428 current = drm_output_add_mode(output, &crtc_mode);
1433 if (o && o->config == OUTPUT_CONFIG_CURRENT)
1434 configured = current;
1436 if (option_current_mode && current)
1437 output->base.current = ¤t->base;
1438 else if (configured)
1439 output->base.current = &configured->base;
1441 output->base.current = &preferred->base;
1443 output->base.current = ¤t->base;
1445 if (output->base.current == NULL) {
1446 weston_log("no available modes for %s\n", output->name);
1450 output->base.current->flags |= WL_OUTPUT_MODE_CURRENT;
1452 output->surface = gbm_surface_create(ec->gbm,
1453 output->base.current->width,
1454 output->base.current->height,
1455 GBM_FORMAT_XRGB8888,
1456 GBM_BO_USE_SCANOUT |
1457 GBM_BO_USE_RENDERING);
1458 if (!output->surface) {
1459 weston_log("failed to create gbm surface\n");
1463 output->base.egl_surface =
1464 eglCreateWindowSurface(ec->base.egl_display,
1465 ec->base.egl_config,
1468 if (output->base.egl_surface == EGL_NO_SURFACE) {
1469 weston_log("failed to create egl surface\n");
1473 output->cursor_bo[0] =
1474 gbm_bo_create(ec->gbm, 64, 64, GBM_FORMAT_ARGB8888,
1475 GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE);
1476 output->cursor_bo[1] =
1477 gbm_bo_create(ec->gbm, 64, 64, GBM_FORMAT_ARGB8888,
1478 GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE);
1479 if (output->cursor_bo[0] == NULL || output->cursor_bo[1] == NULL) {
1480 weston_log("cursor buffers unavailable, using gl cursors\n");
1481 ec->cursors_are_broken = 1;
1484 output->backlight = backlight_init(drm_device,
1485 connector->connector_type);
1486 if (output->backlight) {
1487 output->base.set_backlight = drm_set_backlight;
1488 output->base.backlight_current = drm_get_backlight(output);
1491 weston_output_init(&output->base, &ec->base, x, y,
1492 connector->mmWidth, connector->mmHeight,
1493 o ? o->transform : WL_OUTPUT_TRANSFORM_NORMAL);
1495 wl_list_insert(ec->base.output_list.prev, &output->base.link);
1497 output->base.origin = output->base.current;
1498 output->base.repaint = drm_output_repaint;
1499 output->base.destroy = drm_output_destroy;
1500 output->base.assign_planes = drm_assign_planes;
1501 output->base.set_dpms = drm_set_dpms;
1502 output->base.switch_mode = drm_output_switch_mode;
1504 weston_plane_init(&output->cursor_plane, 0, 0);
1505 weston_plane_init(&output->fb_plane, 0, 0);
1507 weston_log("Output %s, (connector %d, crtc %d)\n",
1508 output->name, output->connector_id, output->crtc_id);
1509 wl_list_for_each(m, &output->base.mode_list, link)
1510 weston_log_continue(" mode %dx%d@%.1f%s%s%s\n",
1511 m->width, m->height, m->refresh / 1000.0,
1512 m->flags & WL_OUTPUT_MODE_PREFERRED ?
1514 m->flags & WL_OUTPUT_MODE_CURRENT ?
1516 connector->count_modes == 0 ?
1522 gbm_surface_destroy(output->surface);
1524 wl_list_for_each_safe(drm_mode, next, &output->base.mode_list,
1526 wl_list_remove(&drm_mode->base.link);
1530 drmModeFreeCrtc(output->original_crtc);
1531 ec->crtc_allocator &= ~(1 << output->crtc_id);
1532 ec->connector_allocator &= ~(1 << output->connector_id);
1540 create_sprites(struct drm_compositor *ec)
1542 struct drm_sprite *sprite;
1543 drmModePlaneRes *plane_res;
1544 drmModePlane *plane;
1547 plane_res = drmModeGetPlaneResources(ec->drm.fd);
1549 weston_log("failed to get plane resources: %s\n",
1554 for (i = 0; i < plane_res->count_planes; i++) {
1555 plane = drmModeGetPlane(ec->drm.fd, plane_res->planes[i]);
1559 sprite = malloc(sizeof(*sprite) + ((sizeof(uint32_t)) *
1560 plane->count_formats));
1562 weston_log("%s: out of memory\n",
1568 memset(sprite, 0, sizeof *sprite);
1570 sprite->possible_crtcs = plane->possible_crtcs;
1571 sprite->plane_id = plane->plane_id;
1572 sprite->surface = NULL;
1573 sprite->pending_surface = NULL;
1575 sprite->pending_fb_id = 0;
1576 sprite->destroy_listener.notify = sprite_handle_buffer_destroy;
1577 sprite->pending_destroy_listener.notify =
1578 sprite_handle_pending_buffer_destroy;
1579 sprite->compositor = ec;
1580 sprite->count_formats = plane->count_formats;
1581 memcpy(sprite->formats, plane->formats,
1582 plane->count_formats * sizeof(plane->formats[0]));
1583 drmModeFreePlane(plane);
1584 weston_plane_init(&sprite->plane, 0, 0);
1586 wl_list_insert(&ec->sprite_list, &sprite->link);
1589 free(plane_res->planes);
1594 destroy_sprites(struct drm_compositor *compositor)
1596 struct drm_sprite *sprite, *next;
1597 struct drm_output *output;
1599 output = container_of(compositor->base.output_list.next,
1600 struct drm_output, base.link);
1602 wl_list_for_each_safe(sprite, next, &compositor->sprite_list, link) {
1603 drmModeSetPlane(compositor->drm.fd,
1605 output->crtc_id, 0, 0,
1606 0, 0, 0, 0, 0, 0, 0, 0);
1607 drmModeRmFB(compositor->drm.fd, sprite->fb_id);
1608 weston_plane_release(&sprite->plane);
1614 create_outputs(struct drm_compositor *ec, uint32_t option_connector,
1615 struct udev_device *drm_device)
1617 drmModeConnector *connector;
1618 drmModeRes *resources;
1622 resources = drmModeGetResources(ec->drm.fd);
1624 weston_log("drmModeGetResources failed\n");
1628 ec->crtcs = calloc(resources->count_crtcs, sizeof(uint32_t));
1630 drmModeFreeResources(resources);
1634 ec->min_width = resources->min_width;
1635 ec->max_width = resources->max_width;
1636 ec->min_height = resources->min_height;
1637 ec->max_height = resources->max_height;
1639 ec->num_crtcs = resources->count_crtcs;
1640 memcpy(ec->crtcs, resources->crtcs, sizeof(uint32_t) * ec->num_crtcs);
1642 for (i = 0; i < resources->count_connectors; i++) {
1643 connector = drmModeGetConnector(ec->drm.fd,
1644 resources->connectors[i]);
1645 if (connector == NULL)
1648 if (connector->connection == DRM_MODE_CONNECTED &&
1649 (option_connector == 0 ||
1650 connector->connector_id == option_connector)) {
1651 if (create_output_for_connector(ec, resources,
1654 drmModeFreeConnector(connector);
1658 x += container_of(ec->base.output_list.prev,
1659 struct weston_output,
1663 drmModeFreeConnector(connector);
1666 if (wl_list_empty(&ec->base.output_list)) {
1667 weston_log("No currently active connector found.\n");
1668 drmModeFreeResources(resources);
1672 drmModeFreeResources(resources);
1678 update_outputs(struct drm_compositor *ec, struct udev_device *drm_device)
1680 drmModeConnector *connector;
1681 drmModeRes *resources;
1682 struct drm_output *output, *next;
1684 int x_offset = 0, y_offset = 0;
1685 uint32_t connected = 0, disconnects = 0;
1688 resources = drmModeGetResources(ec->drm.fd);
1690 weston_log("drmModeGetResources failed\n");
1694 /* collect new connects */
1695 for (i = 0; i < resources->count_connectors; i++) {
1696 int connector_id = resources->connectors[i];
1698 connector = drmModeGetConnector(ec->drm.fd, connector_id);
1699 if (connector == NULL)
1702 if (connector->connection != DRM_MODE_CONNECTED) {
1703 drmModeFreeConnector(connector);
1707 connected |= (1 << connector_id);
1709 if (!(ec->connector_allocator & (1 << connector_id))) {
1710 struct weston_output *last =
1711 container_of(ec->base.output_list.prev,
1712 struct weston_output, link);
1714 /* XXX: not yet needed, we die with 0 outputs */
1715 if (!wl_list_empty(&ec->base.output_list))
1716 x = last->x + last->width;
1720 create_output_for_connector(ec, resources,
1723 weston_log("connector %d connected\n", connector_id);
1726 drmModeFreeConnector(connector);
1728 drmModeFreeResources(resources);
1730 disconnects = ec->connector_allocator & ~connected;
1732 wl_list_for_each_safe(output, next, &ec->base.output_list,
1734 if (x_offset != 0 || y_offset != 0) {
1735 weston_output_move(&output->base,
1736 output->base.x - x_offset,
1737 output->base.y - y_offset);
1740 if (disconnects & (1 << output->connector_id)) {
1741 disconnects &= ~(1 << output->connector_id);
1742 weston_log("connector %d disconnected\n",
1743 output->connector_id);
1744 x_offset += output->base.width;
1745 drm_output_destroy(&output->base);
1750 /* FIXME: handle zero outputs, without terminating */
1751 if (ec->connector_allocator == 0)
1752 wl_display_terminate(ec->base.wl_display);
1756 udev_event_is_hotplug(struct drm_compositor *ec, struct udev_device *device)
1761 sysnum = udev_device_get_sysnum(device);
1762 if (!sysnum || atoi(sysnum) != ec->drm.id)
1765 val = udev_device_get_property_value(device, "HOTPLUG");
1769 return strcmp(val, "1") == 0;
1773 udev_drm_event(int fd, uint32_t mask, void *data)
1775 struct drm_compositor *ec = data;
1776 struct udev_device *event;
1778 event = udev_monitor_receive_device(ec->udev_monitor);
1780 if (udev_event_is_hotplug(ec, event))
1781 update_outputs(ec, event);
1783 udev_device_unref(event);
1789 drm_restore(struct weston_compositor *ec)
1791 struct drm_compositor *d = (struct drm_compositor *) ec;
1793 if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0)
1794 weston_log("failed to drop master: %m\n");
1798 static const char default_seat[] = "seat0";
1801 device_added(struct udev_device *udev_device, struct drm_seat *master)
1803 struct weston_compositor *c;
1804 struct evdev_device *device;
1805 const char *devnode;
1806 const char *device_seat;
1809 device_seat = udev_device_get_property_value(udev_device, "ID_SEAT");
1811 device_seat = default_seat;
1813 if (strcmp(device_seat, master->seat_id))
1816 c = master->base.compositor;
1817 devnode = udev_device_get_devnode(udev_device);
1819 /* Use non-blocking mode so that we can loop on read on
1820 * evdev_device_data() until all events on the fd are
1821 * read. mtdev_get() also expects this. */
1822 fd = weston_launcher_open(c, devnode, O_RDWR | O_NONBLOCK);
1824 weston_log("opening input device '%s' failed.\n", devnode);
1828 device = evdev_device_create(&master->base, devnode, fd);
1829 if (device == EVDEV_UNHANDLED_DEVICE) {
1831 weston_log("not using input device '%s'.\n", devnode);
1833 } else if (device == NULL) {
1835 weston_log("failed to create input device '%s'.\n", devnode);
1839 wl_list_insert(master->devices_list.prev, &device->link);
1845 evdev_add_devices(struct udev *udev, struct weston_seat *seat_base)
1847 struct drm_seat *seat = (struct drm_seat *) seat_base;
1848 struct udev_enumerate *e;
1849 struct udev_list_entry *entry;
1850 struct udev_device *device;
1851 const char *path, *sysname;
1853 e = udev_enumerate_new(udev);
1854 udev_enumerate_add_match_subsystem(e, "input");
1855 udev_enumerate_scan_devices(e);
1856 udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
1857 path = udev_list_entry_get_name(entry);
1858 device = udev_device_new_from_syspath(udev, path);
1860 sysname = udev_device_get_sysname(device);
1861 if (strncmp("event", sysname, 5) != 0) {
1862 udev_device_unref(device);
1866 if (device_added(device, seat) < 0) {
1867 udev_device_unref(device);
1868 udev_enumerate_unref(e);
1872 udev_device_unref(device);
1874 udev_enumerate_unref(e);
1876 evdev_notify_keyboard_focus(&seat->base, &seat->devices_list);
1878 if (wl_list_empty(&seat->devices_list)) {
1880 "warning: no input devices on entering Weston. "
1881 "Possible causes:\n"
1882 "\t- no permissions to read /dev/input/event*\n"
1883 "\t- seats misconfigured "
1884 "(Weston backend option 'seat', "
1885 "udev device property ID_SEAT)\n");
1892 evdev_udev_handler(int fd, uint32_t mask, void *data)
1894 struct drm_seat *seat = data;
1895 struct udev_device *udev_device;
1896 struct evdev_device *device, *next;
1898 const char *devnode;
1900 udev_device = udev_monitor_receive_device(seat->udev_monitor);
1904 action = udev_device_get_action(udev_device);
1908 if (strncmp("event", udev_device_get_sysname(udev_device), 5) != 0)
1911 if (!strcmp(action, "add")) {
1912 device_added(udev_device, seat);
1914 else if (!strcmp(action, "remove")) {
1915 devnode = udev_device_get_devnode(udev_device);
1916 wl_list_for_each_safe(device, next, &seat->devices_list, link)
1917 if (!strcmp(device->devnode, devnode)) {
1918 weston_log("input device %s, %s removed\n",
1919 device->devname, device->devnode);
1920 evdev_device_destroy(device);
1926 udev_device_unref(udev_device);
1932 evdev_enable_udev_monitor(struct udev *udev, struct weston_seat *seat_base)
1934 struct drm_seat *master = (struct drm_seat *) seat_base;
1935 struct wl_event_loop *loop;
1936 struct weston_compositor *c = master->base.compositor;
1939 master->udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
1940 if (!master->udev_monitor) {
1941 weston_log("udev: failed to create the udev monitor\n");
1945 udev_monitor_filter_add_match_subsystem_devtype(master->udev_monitor,
1948 if (udev_monitor_enable_receiving(master->udev_monitor)) {
1949 weston_log("udev: failed to bind the udev monitor\n");
1950 udev_monitor_unref(master->udev_monitor);
1954 loop = wl_display_get_event_loop(c->wl_display);
1955 fd = udev_monitor_get_fd(master->udev_monitor);
1956 master->udev_monitor_source =
1957 wl_event_loop_add_fd(loop, fd, WL_EVENT_READABLE,
1958 evdev_udev_handler, master);
1959 if (!master->udev_monitor_source) {
1960 udev_monitor_unref(master->udev_monitor);
1968 evdev_disable_udev_monitor(struct weston_seat *seat_base)
1970 struct drm_seat *seat = (struct drm_seat *) seat_base;
1972 if (!seat->udev_monitor)
1975 udev_monitor_unref(seat->udev_monitor);
1976 seat->udev_monitor = NULL;
1977 wl_event_source_remove(seat->udev_monitor_source);
1978 seat->udev_monitor_source = NULL;
1982 drm_led_update(struct weston_seat *seat_base, enum weston_led leds)
1984 struct drm_seat *seat = (struct drm_seat *) seat_base;
1985 struct evdev_device *device;
1987 wl_list_for_each(device, &seat->devices_list, link)
1988 evdev_led_update(device, leds);
1991 static struct drm_seat *
1992 evdev_input_create(struct weston_compositor *c, struct udev *udev,
1993 const char *seat_id)
1995 struct drm_seat *seat;
1997 seat = malloc(sizeof *seat);
2001 memset(seat, 0, sizeof *seat);
2002 weston_seat_init(&seat->base, c);
2003 seat->base.led_update = drm_led_update;
2005 wl_list_init(&seat->devices_list);
2006 seat->seat_id = strdup(seat_id);
2007 if (!evdev_enable_udev_monitor(udev, &seat->base))
2009 if (evdev_add_devices(udev, &seat->base) < 0)
2015 free(seat->seat_id);
2021 evdev_remove_devices(struct weston_seat *seat_base)
2023 struct drm_seat *seat = (struct drm_seat *) seat_base;
2024 struct evdev_device *device, *next;
2026 wl_list_for_each_safe(device, next, &seat->devices_list, link)
2027 evdev_device_destroy(device);
2029 if (seat->base.seat.keyboard)
2030 notify_keyboard_focus_out(&seat->base);
2034 evdev_input_destroy(struct weston_seat *seat_base)
2036 struct drm_seat *seat = (struct drm_seat *) seat_base;
2038 evdev_remove_devices(seat_base);
2039 evdev_disable_udev_monitor(&seat->base);
2041 weston_seat_release(seat_base);
2042 free(seat->seat_id);
2047 drm_free_configured_output(struct drm_configured_output *output)
2055 drm_destroy(struct weston_compositor *ec)
2057 struct drm_compositor *d = (struct drm_compositor *) ec;
2058 struct weston_seat *seat, *next;
2059 struct drm_configured_output *o, *n;
2061 wl_list_for_each_safe(seat, next, &ec->seat_list, link)
2062 evdev_input_destroy(seat);
2063 wl_list_for_each_safe(o, n, &configured_output_list, link)
2064 drm_free_configured_output(o);
2066 wl_event_source_remove(d->udev_drm_source);
2067 wl_event_source_remove(d->drm_source);
2069 weston_compositor_shutdown(ec);
2071 gles2_renderer_destroy(ec);
2073 /* Work around crash in egl_dri2.c's dri2_make_current() */
2074 eglMakeCurrent(ec->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
2076 eglTerminate(ec->egl_display);
2079 gbm_device_destroy(d->gbm);
2081 if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0)
2082 weston_log("failed to drop master: %m\n");
2083 tty_destroy(d->tty);
2089 drm_compositor_set_modes(struct drm_compositor *compositor)
2091 struct drm_output *output;
2092 struct drm_mode *drm_mode;
2095 wl_list_for_each(output, &compositor->base.output_list, base.link) {
2096 drm_mode = (struct drm_mode *) output->base.current;
2097 ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id,
2098 output->current->fb_id, 0, 0,
2099 &output->connector_id, 1,
2100 &drm_mode->mode_info);
2103 "failed to set mode %dx%d for output at %d,%d: %m\n",
2104 drm_mode->base.width, drm_mode->base.height,
2105 output->base.x, output->base.y);
2111 vt_func(struct weston_compositor *compositor, int event)
2113 struct drm_compositor *ec = (struct drm_compositor *) compositor;
2114 struct weston_seat *seat;
2115 struct drm_sprite *sprite;
2116 struct drm_output *output;
2120 weston_log("entering VT\n");
2121 compositor->focus = 1;
2122 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 1)) {
2123 weston_log("failed to set master: %m\n");
2124 wl_display_terminate(compositor->wl_display);
2126 compositor->state = ec->prev_state;
2127 drm_compositor_set_modes(ec);
2128 weston_compositor_damage_all(compositor);
2129 wl_list_for_each(seat, &compositor->seat_list, link) {
2130 evdev_add_devices(ec->udev, seat);
2131 evdev_enable_udev_monitor(ec->udev, seat);
2135 weston_log("leaving VT\n");
2136 wl_list_for_each(seat, &compositor->seat_list, link) {
2137 evdev_disable_udev_monitor(seat);
2138 evdev_remove_devices(seat);
2141 compositor->focus = 0;
2142 ec->prev_state = compositor->state;
2143 compositor->state = WESTON_COMPOSITOR_SLEEPING;
2145 /* If we have a repaint scheduled (either from a
2146 * pending pageflip or the idle handler), make sure we
2147 * cancel that so we don't try to pageflip when we're
2148 * vt switched away. The SLEEPING state will prevent
2149 * further attemps at repainting. When we switch
2150 * back, we schedule a repaint, which will process
2151 * pending frame callbacks. */
2153 wl_list_for_each(output, &ec->base.output_list, base.link) {
2154 output->base.repaint_needed = 0;
2155 drmModeSetCursor(ec->drm.fd, output->crtc_id, 0, 0, 0);
2158 output = container_of(ec->base.output_list.next,
2159 struct drm_output, base.link);
2161 wl_list_for_each(sprite, &ec->sprite_list, link)
2162 drmModeSetPlane(ec->drm.fd,
2164 output->crtc_id, 0, 0,
2165 0, 0, 0, 0, 0, 0, 0, 0);
2167 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0)
2168 weston_log("failed to drop master: %m\n");
2175 switch_vt_binding(struct wl_seat *seat, uint32_t time, uint32_t key, void *data)
2177 struct drm_compositor *ec = data;
2179 tty_activate_vt(ec->tty, key - KEY_F1 + 1);
2184 * Some systems may have multiple DRM devices attached to a single seat. This
2185 * function loops over all devices and tries to find a PCI device with the
2186 * boot_vga sysfs attribute set to 1.
2187 * If no such device is found, the first DRM device reported by udev is used.
2189 static struct udev_device*
2190 find_primary_gpu(struct drm_compositor *ec, const char *seat)
2192 struct udev_enumerate *e;
2193 struct udev_list_entry *entry;
2194 const char *path, *device_seat, *id;
2195 struct udev_device *device, *drm_device, *pci;
2197 e = udev_enumerate_new(ec->udev);
2198 udev_enumerate_add_match_subsystem(e, "drm");
2199 udev_enumerate_add_match_sysname(e, "card[0-9]*");
2201 udev_enumerate_scan_devices(e);
2203 udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
2204 path = udev_list_entry_get_name(entry);
2205 device = udev_device_new_from_syspath(ec->udev, path);
2208 device_seat = udev_device_get_property_value(device, "ID_SEAT");
2210 device_seat = default_seat;
2211 if (strcmp(device_seat, seat)) {
2212 udev_device_unref(device);
2216 pci = udev_device_get_parent_with_subsystem_devtype(device,
2219 id = udev_device_get_sysattr_value(pci, "boot_vga");
2220 if (id && !strcmp(id, "1")) {
2222 udev_device_unref(drm_device);
2223 drm_device = device;
2229 drm_device = device;
2231 udev_device_unref(device);
2234 udev_enumerate_unref(e);
2239 hide_sprites_binding(struct wl_seat *seat, uint32_t time, uint32_t key,
2242 struct drm_compositor *c = data;
2244 c->sprites_hidden ^= 1;
2247 static struct weston_compositor *
2248 drm_compositor_create(struct wl_display *display,
2249 int connector, const char *seat, int tty,
2250 int argc, char *argv[], const char *config_file)
2252 struct drm_compositor *ec;
2253 struct udev_device *drm_device;
2254 struct wl_event_loop *loop;
2255 struct weston_seat *weston_seat, *next;
2259 weston_log("initializing drm backend\n");
2261 ec = malloc(sizeof *ec);
2264 memset(ec, 0, sizeof *ec);
2266 /* KMS support for sprites is not complete yet, so disable the
2267 * functionality for now. */
2268 ec->sprites_are_broken = 1;
2270 if (weston_compositor_init(&ec->base, display, argc, argv,
2272 weston_log("weston_compositor_init failed\n");
2276 ec->udev = udev_new();
2277 if (ec->udev == NULL) {
2278 weston_log("failed to initialize udev context\n");
2279 goto err_compositor;
2282 ec->base.wl_display = display;
2283 ec->tty = tty_create(&ec->base, vt_func, tty);
2285 weston_log("failed to initialize tty\n");
2289 drm_device = find_primary_gpu(ec, seat);
2290 if (drm_device == NULL) {
2291 weston_log("no drm device found\n");
2294 path = udev_device_get_syspath(drm_device);
2296 if (init_egl(ec, drm_device) < 0) {
2297 weston_log("failed to initialize egl\n");
2301 ec->base.destroy = drm_destroy;
2302 ec->base.restore = drm_restore;
2306 ec->prev_state = WESTON_COMPOSITOR_ACTIVE;
2308 for (key = KEY_F1; key < KEY_F9; key++)
2309 weston_compositor_add_key_binding(&ec->base, key,
2310 MODIFIER_CTRL | MODIFIER_ALT,
2311 switch_vt_binding, ec);
2313 wl_list_init(&ec->sprite_list);
2316 if (create_outputs(ec, connector, drm_device) < 0) {
2317 weston_log("failed to create output for %s\n", path);
2321 if (gles2_renderer_init(&ec->base) < 0)
2326 if (evdev_input_create(&ec->base, ec->udev, seat) == NULL) {
2327 weston_log("failed to create input devices\n");
2331 loop = wl_display_get_event_loop(ec->base.wl_display);
2333 wl_event_loop_add_fd(loop, ec->drm.fd,
2334 WL_EVENT_READABLE, on_drm_input, ec);
2336 ec->udev_monitor = udev_monitor_new_from_netlink(ec->udev, "udev");
2337 if (ec->udev_monitor == NULL) {
2338 weston_log("failed to intialize udev monitor\n");
2339 goto err_drm_source;
2341 udev_monitor_filter_add_match_subsystem_devtype(ec->udev_monitor,
2343 ec->udev_drm_source =
2344 wl_event_loop_add_fd(loop,
2345 udev_monitor_get_fd(ec->udev_monitor),
2346 WL_EVENT_READABLE, udev_drm_event, ec);
2348 if (udev_monitor_enable_receiving(ec->udev_monitor) < 0) {
2349 weston_log("failed to enable udev-monitor receiving\n");
2350 goto err_udev_monitor;
2353 udev_device_unref(drm_device);
2355 weston_compositor_add_key_binding(&ec->base, KEY_O,
2356 MODIFIER_CTRL | MODIFIER_ALT,
2357 hide_sprites_binding, ec);
2362 wl_event_source_remove(ec->udev_drm_source);
2363 udev_monitor_unref(ec->udev_monitor);
2365 wl_event_source_remove(ec->drm_source);
2366 wl_list_for_each_safe(weston_seat, next, &ec->base.seat_list, link)
2367 evdev_input_destroy(weston_seat);
2369 eglMakeCurrent(ec->base.egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
2371 eglTerminate(ec->base.egl_display);
2373 gbm_device_destroy(ec->gbm);
2375 destroy_sprites(ec);
2377 udev_device_unref(drm_device);
2379 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0)
2380 weston_log("failed to drop master: %m\n");
2381 tty_destroy(ec->tty);
2383 udev_unref(ec->udev);
2385 weston_compositor_shutdown(&ec->base);
2392 set_sync_flags(drmModeModeInfo *mode, char *hsync, char *vsync)
2396 if (strcmp(hsync, "+hsync") == 0)
2397 mode->flags |= DRM_MODE_FLAG_PHSYNC;
2398 else if (strcmp(hsync, "-hsync") == 0)
2399 mode->flags |= DRM_MODE_FLAG_NHSYNC;
2403 if (strcmp(vsync, "+vsync") == 0)
2404 mode->flags |= DRM_MODE_FLAG_PVSYNC;
2405 else if (strcmp(vsync, "-vsync") == 0)
2406 mode->flags |= DRM_MODE_FLAG_NVSYNC;
2414 check_for_modeline(struct drm_configured_output *output)
2416 drmModeModeInfo mode;
2422 mode.type = DRM_MODE_TYPE_USERDEF;
2427 if (sscanf(output_mode, "%f %hd %hd %hd %hd %hd %hd %hd %hd %s %s",
2428 &fclock, &mode.hdisplay,
2430 &mode.hsync_end, &mode.htotal,
2433 &mode.vsync_end, &mode.vtotal,
2434 hsync, vsync) == 11) {
2435 if (set_sync_flags(&mode, hsync, vsync))
2438 sprintf(mode_name, "%dx%d", mode.hdisplay, mode.vdisplay);
2439 strcpy(mode.name, mode_name);
2441 mode.clock = fclock * 1000;
2445 output->crtc_mode = mode;
2451 drm_output_set_transform(struct drm_configured_output *output)
2453 if (!output_transform) {
2454 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2458 if (!strcmp(output_transform, "normal"))
2459 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2460 else if (!strcmp(output_transform, "90"))
2461 output->transform = WL_OUTPUT_TRANSFORM_90;
2462 else if (!strcmp(output_transform, "180"))
2463 output->transform = WL_OUTPUT_TRANSFORM_180;
2464 else if (!strcmp(output_transform, "270"))
2465 output->transform = WL_OUTPUT_TRANSFORM_270;
2466 else if (!strcmp(output_transform, "flipped"))
2467 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED;
2468 else if (!strcmp(output_transform, "flipped-90"))
2469 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
2470 else if (!strcmp(output_transform, "flipped-180"))
2471 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
2472 else if (!strcmp(output_transform, "flipped-270"))
2473 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
2475 weston_log("Invalid transform \"%s\" for output %s\n",
2476 output_transform, output_name);
2477 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2480 free(output_transform);
2481 output_transform = NULL;
2485 output_section_done(void *data)
2487 struct drm_configured_output *output;
2489 output = malloc(sizeof *output);
2491 if (!output || !output_name || (output_name[0] == 'X') ||
2492 (!output_mode && !output_transform)) {
2495 free(output_transform);
2499 output_transform = NULL;
2503 output->config = OUTPUT_CONFIG_INVALID;
2504 output->name = output_name;
2505 output->mode = output_mode;
2508 if (strcmp(output_mode, "off") == 0)
2509 output->config = OUTPUT_CONFIG_OFF;
2510 else if (strcmp(output_mode, "preferred") == 0)
2511 output->config = OUTPUT_CONFIG_PREFERRED;
2512 else if (strcmp(output_mode, "current") == 0)
2513 output->config = OUTPUT_CONFIG_CURRENT;
2514 else if (sscanf(output_mode, "%dx%d",
2515 &output->width, &output->height) == 2)
2516 output->config = OUTPUT_CONFIG_MODE;
2517 else if (check_for_modeline(output) == 0)
2518 output->config = OUTPUT_CONFIG_MODELINE;
2520 if (output->config == OUTPUT_CONFIG_INVALID)
2521 weston_log("Invalid mode \"%s\" for output %s\n",
2522 output_mode, output_name);
2526 drm_output_set_transform(output);
2528 wl_list_insert(&configured_output_list, &output->link);
2530 if (output_transform)
2531 free(output_transform);
2532 output_transform = NULL;
2535 WL_EXPORT struct weston_compositor *
2536 backend_init(struct wl_display *display, int argc, char *argv[],
2537 const char *config_file)
2539 int connector = 0, tty = 0;
2540 const char *seat = default_seat;
2542 const struct weston_option drm_options[] = {
2543 { WESTON_OPTION_INTEGER, "connector", 0, &connector },
2544 { WESTON_OPTION_STRING, "seat", 0, &seat },
2545 { WESTON_OPTION_INTEGER, "tty", 0, &tty },
2546 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &option_current_mode },
2549 parse_options(drm_options, ARRAY_LENGTH(drm_options), argc, argv);
2551 wl_list_init(&configured_output_list);
2553 const struct config_key drm_config_keys[] = {
2554 { "name", CONFIG_KEY_STRING, &output_name },
2555 { "mode", CONFIG_KEY_STRING, &output_mode },
2556 { "transform", CONFIG_KEY_STRING, &output_transform },
2559 const struct config_section config_section[] = {
2560 { "output", drm_config_keys,
2561 ARRAY_LENGTH(drm_config_keys), output_section_done },
2564 parse_config_file(config_file, config_section,
2565 ARRAY_LENGTH(config_section), NULL);
2567 return drm_compositor_create(display, connector, seat, tty, argc, argv,