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>
36 #include <xf86drmMode.h>
37 #include <drm_fourcc.h>
40 #include <libbacklight.h>
43 #include "compositor.h"
44 #include "gl-renderer.h"
45 #include "pixman-renderer.h"
46 #include "udev-seat.h"
47 #include "launcher-util.h"
49 static int option_current_mode = 0;
50 static char *output_name;
51 static char *output_mode;
52 static char *output_transform;
53 static struct wl_list configured_output_list;
56 OUTPUT_CONFIG_INVALID = 0,
58 OUTPUT_CONFIG_PREFERRED,
59 OUTPUT_CONFIG_CURRENT,
61 OUTPUT_CONFIG_MODELINE
64 struct drm_configured_output {
68 int32_t width, height;
69 drmModeModeInfo crtc_mode;
70 enum output_config config;
74 struct drm_compositor {
75 struct weston_compositor base;
78 struct wl_event_source *drm_source;
80 struct udev_monitor *udev_monitor;
81 struct wl_event_source *udev_drm_source;
87 struct gbm_device *gbm;
90 uint32_t crtc_allocator;
91 uint32_t connector_allocator;
94 /* we need these parameters in order to not fail drmModeAddFB2()
95 * due to out of bounds dimensions, and then mistakenly set
98 uint32_t min_width, max_width;
99 uint32_t min_height, max_height;
102 struct wl_list sprite_list;
103 int sprites_are_broken;
106 int cursors_are_broken;
114 struct weston_mode base;
115 drmModeModeInfo mode_info;
121 struct drm_output *output;
122 uint32_t fb_id, stride, handle, size;
124 int is_client_buffer;
125 struct weston_buffer_reference buffer_ref;
127 /* Used by gbm fbs */
130 /* Used by dumb fbs */
135 struct weston_output base;
140 uint32_t connector_id;
141 drmModeCrtcPtr original_crtc;
144 int page_flip_pending;
146 struct gbm_surface *surface;
147 struct gbm_bo *cursor_bo[2];
148 struct weston_plane cursor_plane;
149 struct weston_plane fb_plane;
150 struct weston_surface *cursor_surface;
152 struct drm_fb *current, *next;
153 struct backlight *backlight;
155 struct drm_fb *dumb[2];
156 pixman_image_t *image[2];
158 pixman_region32_t previous_damage;
162 * An output has a primary display plane plus zero or more sprites for
163 * blending display contents.
168 struct weston_plane plane;
170 struct drm_fb *current, *next;
171 struct drm_output *output;
172 struct drm_compositor *compositor;
174 uint32_t possible_crtcs;
176 uint32_t count_formats;
178 int32_t src_x, src_y;
179 uint32_t src_w, src_h;
180 uint32_t dest_x, dest_y;
181 uint32_t dest_w, dest_h;
186 static const char default_seat[] = "seat0";
189 drm_output_set_cursor(struct drm_output *output);
192 drm_sprite_crtc_supported(struct weston_output *output_base, uint32_t supported)
194 struct weston_compositor *ec = output_base->compositor;
195 struct drm_compositor *c =(struct drm_compositor *) ec;
196 struct drm_output *output = (struct drm_output *) output_base;
199 for (crtc = 0; crtc < c->num_crtcs; crtc++) {
200 if (c->crtcs[crtc] != output->crtc_id)
203 if (supported & (1 << crtc))
211 drm_fb_destroy_callback(struct gbm_bo *bo, void *data)
213 struct drm_fb *fb = data;
214 struct gbm_device *gbm = gbm_bo_get_device(bo);
217 drmModeRmFB(gbm_device_get_fd(gbm), fb->fb_id);
219 weston_buffer_reference(&fb->buffer_ref, NULL);
224 static struct drm_fb *
225 drm_fb_create_dumb(struct drm_compositor *ec, unsigned width, unsigned height)
230 struct drm_mode_create_dumb create_arg;
231 struct drm_mode_destroy_dumb destroy_arg;
232 struct drm_mode_map_dumb map_arg;
234 fb = calloc(1, sizeof *fb);
239 create_arg.width = width;
240 create_arg.height = height;
242 ret = drmIoctl(ec->drm.fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg);
246 fb->handle = create_arg.handle;
247 fb->stride = create_arg.pitch;
248 fb->size = create_arg.size;
251 ret = drmModeAddFB(ec->drm.fd, width, height, 24, 32,
252 fb->stride, fb->handle, &fb->fb_id);
256 memset(&map_arg, 0, sizeof(map_arg));
257 map_arg.handle = fb->handle;
258 drmIoctl(fb->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
263 fb->map = mmap(0, fb->size, PROT_WRITE,
264 MAP_SHARED, ec->drm.fd, map_arg.offset);
265 if (fb->map == MAP_FAILED)
271 drmModeRmFB(ec->drm.fd, fb->fb_id);
273 memset(&destroy_arg, 0, sizeof(destroy_arg));
274 destroy_arg.handle = create_arg.handle;
275 drmIoctl(ec->drm.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
282 drm_fb_destroy_dumb(struct drm_fb *fb)
284 struct drm_mode_destroy_dumb destroy_arg;
290 drmModeRmFB(fb->fd, fb->fb_id);
292 weston_buffer_reference(&fb->buffer_ref, NULL);
294 munmap(fb->map, fb->size);
296 memset(&destroy_arg, 0, sizeof(destroy_arg));
297 destroy_arg.handle = fb->handle;
298 drmIoctl(fb->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
303 static struct drm_fb *
304 drm_fb_get_from_bo(struct gbm_bo *bo,
305 struct drm_compositor *compositor, uint32_t format)
307 struct drm_fb *fb = gbm_bo_get_user_data(bo);
308 uint32_t width, height;
309 uint32_t handles[4], pitches[4], offsets[4];
315 fb = calloc(1, sizeof *fb);
321 width = gbm_bo_get_width(bo);
322 height = gbm_bo_get_height(bo);
323 fb->stride = gbm_bo_get_stride(bo);
324 fb->handle = gbm_bo_get_handle(bo).u32;
325 fb->size = fb->stride * height;
326 fb->fd = compositor->drm.fd;
328 if (compositor->min_width > width || width > compositor->max_width ||
329 compositor->min_height > height ||
330 height > compositor->max_height) {
331 weston_log("bo geometry out of bounds\n");
337 if (format && !compositor->no_addfb2) {
338 handles[0] = fb->handle;
339 pitches[0] = fb->stride;
342 ret = drmModeAddFB2(compositor->drm.fd, width, height,
343 format, handles, pitches, offsets,
346 weston_log("addfb2 failed: %m\n");
347 compositor->no_addfb2 = 1;
348 compositor->sprites_are_broken = 1;
353 ret = drmModeAddFB(compositor->drm.fd, width, height, 24, 32,
354 fb->stride, fb->handle, &fb->fb_id);
357 weston_log("failed to create kms fb: %m\n");
361 gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback);
371 drm_fb_set_buffer(struct drm_fb *fb, struct wl_buffer *buffer)
373 assert(fb->buffer_ref.buffer == NULL);
375 fb->is_client_buffer = 1;
377 weston_buffer_reference(&fb->buffer_ref, buffer);
381 drm_output_release_fb(struct drm_output *output, struct drm_fb *fb)
387 (fb != output->dumb[0] && fb != output->dumb[1])) {
388 drm_fb_destroy_dumb(fb);
390 if (fb->is_client_buffer)
391 gbm_bo_destroy(fb->bo);
393 gbm_surface_release_buffer(output->surface,
394 output->current->bo);
399 drm_output_check_scanout_format(struct drm_output *output,
400 struct weston_surface *es, struct gbm_bo *bo)
405 format = gbm_bo_get_format(bo);
408 case GBM_FORMAT_XRGB8888:
410 case GBM_FORMAT_ARGB8888:
411 /* We can only scanout an ARGB buffer if the surface's
412 * opaque region covers the whole output */
413 pixman_region32_init(&r);
414 pixman_region32_subtract(&r, &output->base.region,
417 if (!pixman_region32_not_empty(&r))
418 format = GBM_FORMAT_XRGB8888;
422 pixman_region32_fini(&r);
430 static struct weston_plane *
431 drm_output_prepare_scanout_surface(struct weston_output *_output,
432 struct weston_surface *es)
434 struct drm_output *output = (struct drm_output *) _output;
435 struct drm_compositor *c =
436 (struct drm_compositor *) output->base.compositor;
437 struct wl_buffer *buffer = es->buffer_ref.buffer;
441 if (es->geometry.x != output->base.x ||
442 es->geometry.y != output->base.y ||
443 buffer == NULL || c->gbm == NULL ||
444 buffer->width != output->base.current->width ||
445 buffer->height != output->base.current->height ||
446 output->base.transform != es->buffer_transform ||
447 es->transform.enabled)
450 bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
451 buffer, GBM_BO_USE_SCANOUT);
453 /* Unable to use the buffer for scanout */
457 format = drm_output_check_scanout_format(output, es, bo);
463 output->next = drm_fb_get_from_bo(bo, c, format);
469 drm_fb_set_buffer(output->next, buffer);
471 return &output->fb_plane;
475 drm_output_render_gl(struct drm_output *output, pixman_region32_t *damage)
477 struct drm_compositor *c =
478 (struct drm_compositor *) output->base.compositor;
481 c->base.renderer->repaint_output(&output->base, damage);
483 bo = gbm_surface_lock_front_buffer(output->surface);
485 weston_log("failed to lock front buffer: %m\n");
489 output->next = drm_fb_get_from_bo(bo, c, GBM_FORMAT_XRGB8888);
491 weston_log("failed to get drm_fb for bo\n");
492 gbm_surface_release_buffer(output->surface, bo);
498 drm_output_render_pixman(struct drm_output *output, pixman_region32_t *damage)
500 struct weston_compositor *ec = output->base.compositor;
501 pixman_region32_t total_damage, previous_damage;
503 pixman_region32_init(&total_damage);
504 pixman_region32_init(&previous_damage);
506 pixman_region32_copy(&previous_damage, damage);
508 pixman_region32_union(&total_damage, damage, &output->previous_damage);
509 pixman_region32_copy(&output->previous_damage, &previous_damage);
511 output->current_image ^= 1;
513 output->next = output->dumb[output->current_image];
514 pixman_renderer_output_set_buffer(&output->base,
515 output->image[output->current_image]);
517 ec->renderer->repaint_output(&output->base, &total_damage);
519 pixman_region32_fini(&total_damage);
520 pixman_region32_fini(&previous_damage);
524 drm_output_render(struct drm_output *output, pixman_region32_t *damage)
526 struct drm_compositor *c =
527 (struct drm_compositor *) output->base.compositor;
530 drm_output_render_pixman(output, damage);
532 drm_output_render_gl(output, damage);
534 pixman_region32_subtract(&c->base.primary_plane.damage,
535 &c->base.primary_plane.damage, damage);
539 drm_output_repaint(struct weston_output *output_base,
540 pixman_region32_t *damage)
542 struct drm_output *output = (struct drm_output *) output_base;
543 struct drm_compositor *compositor =
544 (struct drm_compositor *) output->base.compositor;
545 struct drm_sprite *s;
546 struct drm_mode *mode;
550 drm_output_render(output, damage);
554 mode = container_of(output->base.current, struct drm_mode, base);
555 if (!output->current) {
556 ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id,
557 output->next->fb_id, 0, 0,
558 &output->connector_id, 1,
561 weston_log("set mode failed: %m\n");
566 if (drmModePageFlip(compositor->drm.fd, output->crtc_id,
568 DRM_MODE_PAGE_FLIP_EVENT, output) < 0) {
569 weston_log("queueing pageflip failed: %m\n");
573 output->page_flip_pending = 1;
575 drm_output_set_cursor(output);
578 * Now, update all the sprite surfaces
580 wl_list_for_each(s, &compositor->sprite_list, link) {
581 uint32_t flags = 0, fb_id = 0;
583 .request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT,
584 .request.sequence = 1,
587 if ((!s->current && !s->next) ||
588 !drm_sprite_crtc_supported(output_base, s->possible_crtcs))
591 if (s->next && !compositor->sprites_hidden)
592 fb_id = s->next->fb_id;
594 ret = drmModeSetPlane(compositor->drm.fd, s->plane_id,
595 output->crtc_id, fb_id, flags,
596 s->dest_x, s->dest_y,
597 s->dest_w, s->dest_h,
601 weston_log("setplane failed: %d: %s\n",
602 ret, strerror(errno));
604 if (output->pipe > 0)
605 vbl.request.type |= DRM_VBLANK_SECONDARY;
608 * Queue a vblank signal so we know when the surface
609 * becomes active on the display or has been replaced.
611 vbl.request.signal = (unsigned long)s;
612 ret = drmWaitVBlank(compositor->drm.fd, &vbl);
614 weston_log("vblank event request failed: %d: %s\n",
615 ret, strerror(errno));
619 output->vblank_pending = 1;
626 vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec,
629 struct drm_sprite *s = (struct drm_sprite *)data;
630 struct drm_output *output = s->output;
633 output->vblank_pending = 0;
635 drm_output_release_fb(output, s->current);
636 s->current = s->next;
639 if (!output->page_flip_pending) {
640 msecs = sec * 1000 + usec / 1000;
641 weston_output_finish_frame(&output->base, msecs);
646 page_flip_handler(int fd, unsigned int frame,
647 unsigned int sec, unsigned int usec, void *data)
649 struct drm_output *output = (struct drm_output *) data;
652 output->page_flip_pending = 0;
654 drm_output_release_fb(output, output->current);
655 output->current = output->next;
658 if (!output->vblank_pending) {
659 msecs = sec * 1000 + usec / 1000;
660 weston_output_finish_frame(&output->base, msecs);
665 drm_output_check_sprite_format(struct drm_sprite *s,
666 struct weston_surface *es, struct gbm_bo *bo)
670 format = gbm_bo_get_format(bo);
672 if (format == GBM_FORMAT_ARGB8888) {
675 pixman_region32_init_rect(&r, 0, 0,
677 es->geometry.height);
678 pixman_region32_subtract(&r, &r, &es->opaque);
680 if (!pixman_region32_not_empty(&r))
681 format = GBM_FORMAT_XRGB8888;
683 pixman_region32_fini(&r);
686 for (i = 0; i < s->count_formats; i++)
687 if (s->formats[i] == format)
694 drm_surface_transform_supported(struct weston_surface *es)
696 return !es->transform.enabled ||
697 (es->transform.matrix.type < WESTON_MATRIX_TRANSFORM_ROTATE);
700 static struct weston_plane *
701 drm_output_prepare_overlay_surface(struct weston_output *output_base,
702 struct weston_surface *es)
704 struct weston_compositor *ec = output_base->compositor;
705 struct drm_compositor *c =(struct drm_compositor *) ec;
706 struct drm_sprite *s;
709 pixman_region32_t dest_rect, src_rect;
710 pixman_box32_t *box, tbox;
712 wl_fixed_t sx1, sy1, sx2, sy2;
717 if (es->buffer_transform != output_base->transform)
720 if (c->sprites_are_broken)
723 if (es->output_mask != (1u << output_base->id))
726 if (es->buffer_ref.buffer == NULL)
729 if (es->alpha != 1.0f)
732 if (wl_buffer_is_shm(es->buffer_ref.buffer))
735 if (!drm_surface_transform_supported(es))
738 wl_list_for_each(s, &c->sprite_list, link) {
739 if (!drm_sprite_crtc_supported(output_base, s->possible_crtcs))
748 /* No sprites available */
752 bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
753 es->buffer_ref.buffer, GBM_BO_USE_SCANOUT);
757 format = drm_output_check_sprite_format(s, es, bo);
763 s->next = drm_fb_get_from_bo(bo, c, format);
769 drm_fb_set_buffer(s->next, es->buffer_ref.buffer);
771 box = pixman_region32_extents(&es->transform.boundingbox);
772 s->plane.x = box->x1;
773 s->plane.y = box->y1;
776 * Calculate the source & dest rects properly based on actual
777 * position (note the caller has called weston_surface_update_transform()
780 pixman_region32_init(&dest_rect);
781 pixman_region32_intersect(&dest_rect, &es->transform.boundingbox,
782 &output_base->region);
783 pixman_region32_translate(&dest_rect, -output_base->x, -output_base->y);
784 box = pixman_region32_extents(&dest_rect);
785 tbox = weston_transformed_rect(output_base->width,
787 output_base->transform, *box);
790 s->dest_w = tbox.x2 - tbox.x1;
791 s->dest_h = tbox.y2 - tbox.y1;
792 pixman_region32_fini(&dest_rect);
794 pixman_region32_init(&src_rect);
795 pixman_region32_intersect(&src_rect, &es->transform.boundingbox,
796 &output_base->region);
797 box = pixman_region32_extents(&src_rect);
799 weston_surface_from_global_fixed(es,
800 wl_fixed_from_int(box->x1),
801 wl_fixed_from_int(box->y1),
803 weston_surface_from_global_fixed(es,
804 wl_fixed_from_int(box->x2),
805 wl_fixed_from_int(box->y2),
812 if (sx2 > wl_fixed_from_int(es->geometry.width))
813 sx2 = wl_fixed_from_int(es->geometry.width);
814 if (sy2 > wl_fixed_from_int(es->geometry.height))
815 sy2 = wl_fixed_from_int(es->geometry.height);
822 tbox = weston_transformed_rect(wl_fixed_from_int(es->geometry.width),
823 wl_fixed_from_int(es->geometry.height),
824 es->buffer_transform, tbox);
826 s->src_x = tbox.x1 << 8;
827 s->src_y = tbox.y1 << 8;
828 s->src_w = (tbox.x2 - tbox.x1) << 8;
829 s->src_h = (tbox.y2 - tbox.y1) << 8;
830 pixman_region32_fini(&src_rect);
835 static struct weston_plane *
836 drm_output_prepare_cursor_surface(struct weston_output *output_base,
837 struct weston_surface *es)
839 struct drm_compositor *c =
840 (struct drm_compositor *) output_base->compositor;
841 struct drm_output *output = (struct drm_output *) output_base;
845 if (output->base.transform != WL_OUTPUT_TRANSFORM_NORMAL)
847 if (output->cursor_surface)
849 if (es->output_mask != (1u << output_base->id))
851 if (c->cursors_are_broken)
853 if (es->buffer_ref.buffer == NULL ||
854 !wl_buffer_is_shm(es->buffer_ref.buffer) ||
855 es->geometry.width > 64 || es->geometry.height > 64)
858 output->cursor_surface = es;
860 return &output->cursor_plane;
864 drm_output_set_cursor(struct drm_output *output)
866 struct weston_surface *es = output->cursor_surface;
867 struct drm_compositor *c =
868 (struct drm_compositor *) output->base.compositor;
869 EGLint handle, stride;
871 uint32_t buf[64 * 64];
875 output->cursor_surface = NULL;
877 drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
881 if (es->buffer_ref.buffer &&
882 pixman_region32_not_empty(&output->cursor_plane.damage)) {
883 pixman_region32_fini(&output->cursor_plane.damage);
884 pixman_region32_init(&output->cursor_plane.damage);
885 output->current_cursor ^= 1;
886 bo = output->cursor_bo[output->current_cursor];
887 memset(buf, 0, sizeof buf);
888 stride = wl_shm_buffer_get_stride(es->buffer_ref.buffer);
889 s = wl_shm_buffer_get_data(es->buffer_ref.buffer);
890 for (i = 0; i < es->geometry.height; i++)
891 memcpy(buf + i * 64, s + i * stride,
892 es->geometry.width * 4);
894 if (gbm_bo_write(bo, buf, sizeof buf) < 0)
895 weston_log("failed update cursor: %m\n");
897 handle = gbm_bo_get_handle(bo).s32;
898 if (drmModeSetCursor(c->drm.fd,
899 output->crtc_id, handle, 64, 64)) {
900 weston_log("failed to set cursor: %m\n");
901 c->cursors_are_broken = 1;
905 x = es->geometry.x - output->base.x;
906 y = es->geometry.y - output->base.y;
907 if (output->cursor_plane.x != x || output->cursor_plane.y != y) {
908 if (drmModeMoveCursor(c->drm.fd, output->crtc_id, x, y)) {
909 weston_log("failed to move cursor: %m\n");
910 c->cursors_are_broken = 1;
913 output->cursor_plane.x = x;
914 output->cursor_plane.y = y;
919 drm_assign_planes(struct weston_output *output)
921 struct drm_compositor *c =
922 (struct drm_compositor *) output->compositor;
923 struct weston_surface *es, *next;
924 pixman_region32_t overlap, surface_overlap;
925 struct weston_plane *primary, *next_plane;
928 * Find a surface for each sprite in the output using some heuristics:
930 * 2) frequency of update
931 * 3) opacity (though some hw might support alpha blending)
932 * 4) clipping (this can be fixed with color keys)
934 * The idea is to save on blitting since this should save power.
935 * If we can get a large video surface on the sprite for example,
936 * the main display surface may not need to update at all, and
937 * the client buffer can be used directly for the sprite surface
938 * as we do for flipping full screen surfaces.
940 pixman_region32_init(&overlap);
941 primary = &c->base.primary_plane;
942 wl_list_for_each_safe(es, next, &c->base.surface_list, link) {
943 /* test whether this buffer can ever go into a plane:
944 * non-shm, or small enough to be a cursor
946 if ((es->buffer_ref.buffer &&
947 !wl_buffer_is_shm(es->buffer_ref.buffer)) ||
948 (es->geometry.width <= 64 && es->geometry.height <= 64))
953 pixman_region32_init(&surface_overlap);
954 pixman_region32_intersect(&surface_overlap, &overlap,
955 &es->transform.boundingbox);
958 if (pixman_region32_not_empty(&surface_overlap))
959 next_plane = primary;
960 if (next_plane == NULL)
961 next_plane = drm_output_prepare_cursor_surface(output, es);
962 if (next_plane == NULL)
963 next_plane = drm_output_prepare_scanout_surface(output, es);
964 if (next_plane == NULL)
965 next_plane = drm_output_prepare_overlay_surface(output, es);
966 if (next_plane == NULL)
967 next_plane = primary;
968 weston_surface_move_to_plane(es, next_plane);
969 if (next_plane == primary)
970 pixman_region32_union(&overlap, &overlap,
971 &es->transform.boundingbox);
973 pixman_region32_fini(&surface_overlap);
975 pixman_region32_fini(&overlap);
979 drm_output_fini_pixman(struct drm_output *output);
982 drm_output_destroy(struct weston_output *output_base)
984 struct drm_output *output = (struct drm_output *) output_base;
985 struct drm_compositor *c =
986 (struct drm_compositor *) output->base.compositor;
987 drmModeCrtcPtr origcrtc = output->original_crtc;
989 if (output->backlight)
990 backlight_destroy(output->backlight);
992 /* Turn off hardware cursor */
993 drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
995 /* Restore original CRTC state */
996 drmModeSetCrtc(c->drm.fd, origcrtc->crtc_id, origcrtc->buffer_id,
997 origcrtc->x, origcrtc->y,
998 &output->connector_id, 1, &origcrtc->mode);
999 drmModeFreeCrtc(origcrtc);
1001 c->crtc_allocator &= ~(1 << output->crtc_id);
1002 c->connector_allocator &= ~(1 << output->connector_id);
1004 if (c->use_pixman) {
1005 drm_output_fini_pixman(output);
1007 gl_renderer_output_destroy(output_base);
1008 gbm_surface_destroy(output->surface);
1011 weston_plane_release(&output->fb_plane);
1012 weston_plane_release(&output->cursor_plane);
1014 weston_output_destroy(&output->base);
1015 wl_list_remove(&output->base.link);
1021 static struct drm_mode *
1022 choose_mode (struct drm_output *output, struct weston_mode *target_mode)
1024 struct drm_mode *tmp_mode = NULL, *mode;
1026 if (output->base.current->width == target_mode->width &&
1027 output->base.current->height == target_mode->height &&
1028 (output->base.current->refresh == target_mode->refresh ||
1029 target_mode->refresh == 0))
1030 return (struct drm_mode *)output->base.current;
1032 wl_list_for_each(mode, &output->base.mode_list, base.link) {
1033 if (mode->mode_info.hdisplay == target_mode->width &&
1034 mode->mode_info.vdisplay == target_mode->height) {
1035 if (mode->mode_info.vrefresh == target_mode->refresh ||
1036 target_mode->refresh == 0) {
1038 } else if (!tmp_mode)
1047 drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec);
1049 drm_output_init_pixman(struct drm_output *output, struct drm_compositor *c);
1052 drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode)
1054 struct drm_output *output;
1055 struct drm_mode *drm_mode;
1056 struct drm_compositor *ec;
1058 if (output_base == NULL) {
1059 weston_log("output is NULL.\n");
1064 weston_log("mode is NULL.\n");
1068 ec = (struct drm_compositor *)output_base->compositor;
1069 output = (struct drm_output *)output_base;
1070 drm_mode = choose_mode (output, mode);
1073 weston_log("%s, invalid resolution:%dx%d\n", __func__, mode->width, mode->height);
1077 if (&drm_mode->base == output->base.current)
1080 output->base.current->flags = 0;
1082 output->base.current = &drm_mode->base;
1083 output->base.current->flags =
1084 WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
1086 /* reset rendering stuff. */
1087 drm_output_release_fb(output, output->current);
1088 drm_output_release_fb(output, output->next);
1089 output->current = output->next = NULL;
1091 if (ec->use_pixman) {
1092 drm_output_fini_pixman(output);
1093 if (drm_output_init_pixman(output, ec) < 0) {
1094 weston_log("failed to init output pixman state with "
1099 gl_renderer_output_destroy(&output->base);
1100 gbm_surface_destroy(output->surface);
1102 if (drm_output_init_egl(output, ec) < 0) {
1103 weston_log("failed to init output egl state with "
1113 on_drm_input(int fd, uint32_t mask, void *data)
1115 drmEventContext evctx;
1117 memset(&evctx, 0, sizeof evctx);
1118 evctx.version = DRM_EVENT_CONTEXT_VERSION;
1119 evctx.page_flip_handler = page_flip_handler;
1120 evctx.vblank_handler = vblank_handler;
1121 drmHandleEvent(fd, &evctx);
1127 init_drm(struct drm_compositor *ec, struct udev_device *device)
1129 const char *filename, *sysnum;
1132 sysnum = udev_device_get_sysnum(device);
1134 ec->drm.id = atoi(sysnum);
1135 if (!sysnum || ec->drm.id < 0) {
1136 weston_log("cannot get device sysnum\n");
1140 filename = udev_device_get_devnode(device);
1141 fd = open(filename, O_RDWR | O_CLOEXEC);
1143 /* Probably permissions error */
1144 weston_log("couldn't open %s, skipping\n",
1145 udev_device_get_devnode(device));
1149 weston_log("using %s\n", filename);
1158 init_egl(struct drm_compositor *ec)
1160 ec->gbm = gbm_create_device(ec->drm.fd);
1165 if (gl_renderer_create(&ec->base, ec->gbm, gl_renderer_opaque_attribs,
1167 gbm_device_destroy(ec->gbm);
1175 init_pixman(struct drm_compositor *ec)
1177 return pixman_renderer_init(&ec->base);
1180 static struct drm_mode *
1181 drm_output_add_mode(struct drm_output *output, drmModeModeInfo *info)
1183 struct drm_mode *mode;
1186 mode = malloc(sizeof *mode);
1190 mode->base.flags = 0;
1191 mode->base.width = info->hdisplay;
1192 mode->base.height = info->vdisplay;
1194 /* Calculate higher precision (mHz) refresh rate */
1195 refresh = (info->clock * 1000000LL / info->htotal +
1196 info->vtotal / 2) / info->vtotal;
1198 if (info->flags & DRM_MODE_FLAG_INTERLACE)
1200 if (info->flags & DRM_MODE_FLAG_DBLSCAN)
1202 if (info->vscan > 1)
1203 refresh /= info->vscan;
1205 mode->base.refresh = refresh;
1206 mode->mode_info = *info;
1208 if (info->type & DRM_MODE_TYPE_PREFERRED)
1209 mode->base.flags |= WL_OUTPUT_MODE_PREFERRED;
1211 wl_list_insert(output->base.mode_list.prev, &mode->base.link);
1217 drm_subpixel_to_wayland(int drm_value)
1219 switch (drm_value) {
1221 case DRM_MODE_SUBPIXEL_UNKNOWN:
1222 return WL_OUTPUT_SUBPIXEL_UNKNOWN;
1223 case DRM_MODE_SUBPIXEL_NONE:
1224 return WL_OUTPUT_SUBPIXEL_NONE;
1225 case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB:
1226 return WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB;
1227 case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR:
1228 return WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR;
1229 case DRM_MODE_SUBPIXEL_VERTICAL_RGB:
1230 return WL_OUTPUT_SUBPIXEL_VERTICAL_RGB;
1231 case DRM_MODE_SUBPIXEL_VERTICAL_BGR:
1232 return WL_OUTPUT_SUBPIXEL_VERTICAL_BGR;
1236 /* returns a value between 0-255 range, where higher is brighter */
1238 drm_get_backlight(struct drm_output *output)
1240 long brightness, max_brightness, norm;
1242 brightness = backlight_get_brightness(output->backlight);
1243 max_brightness = backlight_get_max_brightness(output->backlight);
1245 /* convert it on a scale of 0 to 255 */
1246 norm = (brightness * 255)/(max_brightness);
1248 return (uint32_t) norm;
1251 /* values accepted are between 0-255 range */
1253 drm_set_backlight(struct weston_output *output_base, uint32_t value)
1255 struct drm_output *output = (struct drm_output *) output_base;
1256 long max_brightness, new_brightness;
1258 if (!output->backlight)
1264 max_brightness = backlight_get_max_brightness(output->backlight);
1266 /* get denormalized value */
1267 new_brightness = (value * max_brightness) / 255;
1269 backlight_set_brightness(output->backlight, new_brightness);
1272 static drmModePropertyPtr
1273 drm_get_prop(int fd, drmModeConnectorPtr connector, const char *name)
1275 drmModePropertyPtr props;
1278 for (i = 0; i < connector->count_props; i++) {
1279 props = drmModeGetProperty(fd, connector->props[i]);
1283 if (!strcmp(props->name, name))
1286 drmModeFreeProperty(props);
1293 drm_set_dpms(struct weston_output *output_base, enum dpms_enum level)
1295 struct drm_output *output = (struct drm_output *) output_base;
1296 struct weston_compositor *ec = output_base->compositor;
1297 struct drm_compositor *c = (struct drm_compositor *) ec;
1298 drmModeConnectorPtr connector;
1299 drmModePropertyPtr prop;
1301 connector = drmModeGetConnector(c->drm.fd, output->connector_id);
1305 prop = drm_get_prop(c->drm.fd, connector, "DPMS");
1307 drmModeFreeConnector(connector);
1311 drmModeConnectorSetProperty(c->drm.fd, connector->connector_id,
1312 prop->prop_id, level);
1313 drmModeFreeProperty(prop);
1314 drmModeFreeConnector(connector);
1317 static const char *connector_type_names[] = {
1336 find_crtc_for_connector(struct drm_compositor *ec,
1337 drmModeRes *resources, drmModeConnector *connector)
1339 drmModeEncoder *encoder;
1340 uint32_t possible_crtcs;
1343 for (j = 0; j < connector->count_encoders; j++) {
1344 encoder = drmModeGetEncoder(ec->drm.fd, connector->encoders[j]);
1345 if (encoder == NULL) {
1346 weston_log("Failed to get encoder.\n");
1349 possible_crtcs = encoder->possible_crtcs;
1350 drmModeFreeEncoder(encoder);
1352 for (i = 0; i < resources->count_crtcs; i++) {
1353 if (possible_crtcs & (1 << i) &&
1354 !(ec->crtc_allocator & (1 << resources->crtcs[i])))
1362 /* Init output state that depends on gl or gbm */
1364 drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec)
1368 output->surface = gbm_surface_create(ec->gbm,
1369 output->base.current->width,
1370 output->base.current->height,
1371 GBM_FORMAT_XRGB8888,
1372 GBM_BO_USE_SCANOUT |
1373 GBM_BO_USE_RENDERING);
1374 if (!output->surface) {
1375 weston_log("failed to create gbm surface\n");
1379 if (gl_renderer_output_create(&output->base, output->surface) < 0) {
1380 weston_log("failed to create gl renderer output state\n");
1381 gbm_surface_destroy(output->surface);
1385 flags = GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE;
1387 for (i = 0; i < 2; i++) {
1388 if (output->cursor_bo[i])
1391 output->cursor_bo[i] =
1392 gbm_bo_create(ec->gbm, 64, 64, GBM_FORMAT_ARGB8888,
1396 if (output->cursor_bo[0] == NULL || output->cursor_bo[1] == NULL) {
1397 weston_log("cursor buffers unavailable, using gl cursors\n");
1398 ec->cursors_are_broken = 1;
1405 drm_output_init_pixman(struct drm_output *output, struct drm_compositor *c)
1407 int w = output->base.current->width;
1408 int h = output->base.current->height;
1411 /* FIXME error checking */
1413 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1414 output->dumb[i] = drm_fb_create_dumb(c, w, h);
1415 if (!output->dumb[i])
1419 pixman_image_create_bits(PIXMAN_x8r8g8b8, w, h,
1420 output->dumb[i]->map,
1421 output->dumb[i]->stride);
1422 if (!output->image[i])
1426 if (pixman_renderer_output_create(&output->base) < 0)
1429 pixman_region32_init_rect(&output->previous_damage,
1430 output->base.x, output->base.y, w, h);
1435 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1436 if (output->dumb[i])
1437 drm_fb_destroy_dumb(output->dumb[i]);
1438 if (output->image[i])
1439 pixman_image_unref(output->image[i]);
1441 output->dumb[i] = NULL;
1442 output->image[i] = NULL;
1449 drm_output_fini_pixman(struct drm_output *output)
1453 pixman_renderer_output_destroy(&output->base);
1454 pixman_region32_fini(&output->previous_damage);
1456 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1457 drm_fb_destroy_dumb(output->dumb[i]);
1458 pixman_image_unref(output->image[i]);
1459 output->dumb[i] = NULL;
1460 output->image[i] = NULL;
1465 create_output_for_connector(struct drm_compositor *ec,
1466 drmModeRes *resources,
1467 drmModeConnector *connector,
1468 int x, int y, struct udev_device *drm_device)
1470 struct drm_output *output;
1471 struct drm_mode *drm_mode, *next, *preferred, *current, *configured;
1472 struct weston_mode *m;
1473 struct drm_configured_output *o = NULL, *temp;
1474 drmModeEncoder *encoder;
1475 drmModeModeInfo crtc_mode;
1479 const char *type_name;
1481 i = find_crtc_for_connector(ec, resources, connector);
1483 weston_log("No usable crtc/encoder pair for connector.\n");
1487 output = malloc(sizeof *output);
1491 memset(output, 0, sizeof *output);
1492 output->base.subpixel = drm_subpixel_to_wayland(connector->subpixel);
1493 output->base.make = "unknown";
1494 output->base.model = "unknown";
1495 wl_list_init(&output->base.mode_list);
1497 if (connector->connector_type < ARRAY_LENGTH(connector_type_names))
1498 type_name = connector_type_names[connector->connector_type];
1500 type_name = "UNKNOWN";
1501 snprintf(name, 32, "%s%d", type_name, connector->connector_type_id);
1502 output->name = strdup(name);
1504 output->crtc_id = resources->crtcs[i];
1506 ec->crtc_allocator |= (1 << output->crtc_id);
1507 output->connector_id = connector->connector_id;
1508 ec->connector_allocator |= (1 << output->connector_id);
1510 output->original_crtc = drmModeGetCrtc(ec->drm.fd, output->crtc_id);
1512 /* Get the current mode on the crtc that's currently driving
1513 * this connector. */
1514 encoder = drmModeGetEncoder(ec->drm.fd, connector->encoder_id);
1515 memset(&crtc_mode, 0, sizeof crtc_mode);
1516 if (encoder != NULL) {
1517 crtc = drmModeGetCrtc(ec->drm.fd, encoder->crtc_id);
1518 drmModeFreeEncoder(encoder);
1521 if (crtc->mode_valid)
1522 crtc_mode = crtc->mode;
1523 drmModeFreeCrtc(crtc);
1526 for (i = 0; i < connector->count_modes; i++) {
1527 drm_mode = drm_output_add_mode(output, &connector->modes[i]);
1536 wl_list_for_each(temp, &configured_output_list, link) {
1537 if (strcmp(temp->name, output->name) == 0) {
1539 weston_log("%s mode \"%s\" in config\n",
1540 temp->name, temp->mode);
1546 if (o && o->config == OUTPUT_CONFIG_OFF) {
1547 weston_log("Disabling output %s\n", o->name);
1549 drmModeSetCrtc(ec->drm.fd, output->crtc_id,
1550 0, 0, 0, 0, 0, NULL);
1554 wl_list_for_each(drm_mode, &output->base.mode_list, base.link) {
1555 if (o && o->config == OUTPUT_CONFIG_MODE &&
1556 o->width == drm_mode->base.width &&
1557 o->height == drm_mode->base.height)
1558 configured = drm_mode;
1559 if (!memcmp(&crtc_mode, &drm_mode->mode_info, sizeof crtc_mode))
1561 if (drm_mode->base.flags & WL_OUTPUT_MODE_PREFERRED)
1562 preferred = drm_mode;
1565 if (o && o->config == OUTPUT_CONFIG_MODELINE) {
1566 configured = drm_output_add_mode(output, &o->crtc_mode);
1569 current = configured;
1572 if (current == NULL && crtc_mode.clock != 0) {
1573 current = drm_output_add_mode(output, &crtc_mode);
1578 if (o && o->config == OUTPUT_CONFIG_CURRENT)
1579 configured = current;
1581 if (option_current_mode && current)
1582 output->base.current = ¤t->base;
1583 else if (configured)
1584 output->base.current = &configured->base;
1586 output->base.current = &preferred->base;
1588 output->base.current = ¤t->base;
1590 if (output->base.current == NULL) {
1591 weston_log("no available modes for %s\n", output->name);
1595 output->base.current->flags |= WL_OUTPUT_MODE_CURRENT;
1597 weston_output_init(&output->base, &ec->base, x, y,
1598 connector->mmWidth, connector->mmHeight,
1599 o ? o->transform : WL_OUTPUT_TRANSFORM_NORMAL);
1601 if (ec->use_pixman) {
1602 if (drm_output_init_pixman(output, ec) < 0) {
1603 weston_log("Failed to init output pixman state\n");
1606 } else if (drm_output_init_egl(output, ec) < 0) {
1607 weston_log("Failed to init output gl state\n");
1611 output->backlight = backlight_init(drm_device,
1612 connector->connector_type);
1613 if (output->backlight) {
1614 output->base.set_backlight = drm_set_backlight;
1615 output->base.backlight_current = drm_get_backlight(output);
1618 wl_list_insert(ec->base.output_list.prev, &output->base.link);
1620 output->base.origin = output->base.current;
1621 output->base.repaint = drm_output_repaint;
1622 output->base.destroy = drm_output_destroy;
1623 output->base.assign_planes = drm_assign_planes;
1624 output->base.set_dpms = drm_set_dpms;
1625 output->base.switch_mode = drm_output_switch_mode;
1627 weston_plane_init(&output->cursor_plane, 0, 0);
1628 weston_plane_init(&output->fb_plane, 0, 0);
1630 weston_compositor_stack_plane(&ec->base, &output->cursor_plane, NULL);
1631 weston_compositor_stack_plane(&ec->base, &output->fb_plane,
1632 &ec->base.primary_plane);
1634 weston_log("Output %s, (connector %d, crtc %d)\n",
1635 output->name, output->connector_id, output->crtc_id);
1636 wl_list_for_each(m, &output->base.mode_list, link)
1637 weston_log_continue(" mode %dx%d@%.1f%s%s%s\n",
1638 m->width, m->height, m->refresh / 1000.0,
1639 m->flags & WL_OUTPUT_MODE_PREFERRED ?
1641 m->flags & WL_OUTPUT_MODE_CURRENT ?
1643 connector->count_modes == 0 ?
1649 weston_output_destroy(&output->base);
1651 wl_list_for_each_safe(drm_mode, next, &output->base.mode_list,
1653 wl_list_remove(&drm_mode->base.link);
1657 drmModeFreeCrtc(output->original_crtc);
1658 ec->crtc_allocator &= ~(1 << output->crtc_id);
1659 ec->connector_allocator &= ~(1 << output->connector_id);
1667 create_sprites(struct drm_compositor *ec)
1669 struct drm_sprite *sprite;
1670 drmModePlaneRes *plane_res;
1671 drmModePlane *plane;
1674 plane_res = drmModeGetPlaneResources(ec->drm.fd);
1676 weston_log("failed to get plane resources: %s\n",
1681 for (i = 0; i < plane_res->count_planes; i++) {
1682 plane = drmModeGetPlane(ec->drm.fd, plane_res->planes[i]);
1686 sprite = malloc(sizeof(*sprite) + ((sizeof(uint32_t)) *
1687 plane->count_formats));
1689 weston_log("%s: out of memory\n",
1695 memset(sprite, 0, sizeof *sprite);
1697 sprite->possible_crtcs = plane->possible_crtcs;
1698 sprite->plane_id = plane->plane_id;
1699 sprite->current = NULL;
1700 sprite->next = NULL;
1701 sprite->compositor = ec;
1702 sprite->count_formats = plane->count_formats;
1703 memcpy(sprite->formats, plane->formats,
1704 plane->count_formats * sizeof(plane->formats[0]));
1705 drmModeFreePlane(plane);
1706 weston_plane_init(&sprite->plane, 0, 0);
1707 weston_compositor_stack_plane(&ec->base, &sprite->plane,
1708 &ec->base.primary_plane);
1710 wl_list_insert(&ec->sprite_list, &sprite->link);
1713 free(plane_res->planes);
1718 destroy_sprites(struct drm_compositor *compositor)
1720 struct drm_sprite *sprite, *next;
1721 struct drm_output *output;
1723 output = container_of(compositor->base.output_list.next,
1724 struct drm_output, base.link);
1726 wl_list_for_each_safe(sprite, next, &compositor->sprite_list, link) {
1727 drmModeSetPlane(compositor->drm.fd,
1729 output->crtc_id, 0, 0,
1730 0, 0, 0, 0, 0, 0, 0, 0);
1731 drm_output_release_fb(output, sprite->current);
1732 drm_output_release_fb(output, sprite->next);
1733 weston_plane_release(&sprite->plane);
1739 create_outputs(struct drm_compositor *ec, uint32_t option_connector,
1740 struct udev_device *drm_device)
1742 drmModeConnector *connector;
1743 drmModeRes *resources;
1747 resources = drmModeGetResources(ec->drm.fd);
1749 weston_log("drmModeGetResources failed\n");
1753 ec->crtcs = calloc(resources->count_crtcs, sizeof(uint32_t));
1755 drmModeFreeResources(resources);
1759 ec->min_width = resources->min_width;
1760 ec->max_width = resources->max_width;
1761 ec->min_height = resources->min_height;
1762 ec->max_height = resources->max_height;
1764 ec->num_crtcs = resources->count_crtcs;
1765 memcpy(ec->crtcs, resources->crtcs, sizeof(uint32_t) * ec->num_crtcs);
1767 for (i = 0; i < resources->count_connectors; i++) {
1768 connector = drmModeGetConnector(ec->drm.fd,
1769 resources->connectors[i]);
1770 if (connector == NULL)
1773 if (connector->connection == DRM_MODE_CONNECTED &&
1774 (option_connector == 0 ||
1775 connector->connector_id == option_connector)) {
1776 if (create_output_for_connector(ec, resources,
1779 drmModeFreeConnector(connector);
1783 x += container_of(ec->base.output_list.prev,
1784 struct weston_output,
1788 drmModeFreeConnector(connector);
1791 if (wl_list_empty(&ec->base.output_list)) {
1792 weston_log("No currently active connector found.\n");
1793 drmModeFreeResources(resources);
1797 drmModeFreeResources(resources);
1803 update_outputs(struct drm_compositor *ec, struct udev_device *drm_device)
1805 drmModeConnector *connector;
1806 drmModeRes *resources;
1807 struct drm_output *output, *next;
1809 int x_offset = 0, y_offset = 0;
1810 uint32_t connected = 0, disconnects = 0;
1813 resources = drmModeGetResources(ec->drm.fd);
1815 weston_log("drmModeGetResources failed\n");
1819 /* collect new connects */
1820 for (i = 0; i < resources->count_connectors; i++) {
1821 int connector_id = resources->connectors[i];
1823 connector = drmModeGetConnector(ec->drm.fd, connector_id);
1824 if (connector == NULL)
1827 if (connector->connection != DRM_MODE_CONNECTED) {
1828 drmModeFreeConnector(connector);
1832 connected |= (1 << connector_id);
1834 if (!(ec->connector_allocator & (1 << connector_id))) {
1835 struct weston_output *last =
1836 container_of(ec->base.output_list.prev,
1837 struct weston_output, link);
1839 /* XXX: not yet needed, we die with 0 outputs */
1840 if (!wl_list_empty(&ec->base.output_list))
1841 x = last->x + last->width;
1845 create_output_for_connector(ec, resources,
1848 weston_log("connector %d connected\n", connector_id);
1851 drmModeFreeConnector(connector);
1853 drmModeFreeResources(resources);
1855 disconnects = ec->connector_allocator & ~connected;
1857 wl_list_for_each_safe(output, next, &ec->base.output_list,
1859 if (x_offset != 0 || y_offset != 0) {
1860 weston_output_move(&output->base,
1861 output->base.x - x_offset,
1862 output->base.y - y_offset);
1865 if (disconnects & (1 << output->connector_id)) {
1866 disconnects &= ~(1 << output->connector_id);
1867 weston_log("connector %d disconnected\n",
1868 output->connector_id);
1869 x_offset += output->base.width;
1870 drm_output_destroy(&output->base);
1875 /* FIXME: handle zero outputs, without terminating */
1876 if (ec->connector_allocator == 0)
1877 wl_display_terminate(ec->base.wl_display);
1881 udev_event_is_hotplug(struct drm_compositor *ec, struct udev_device *device)
1886 sysnum = udev_device_get_sysnum(device);
1887 if (!sysnum || atoi(sysnum) != ec->drm.id)
1890 val = udev_device_get_property_value(device, "HOTPLUG");
1894 return strcmp(val, "1") == 0;
1898 udev_drm_event(int fd, uint32_t mask, void *data)
1900 struct drm_compositor *ec = data;
1901 struct udev_device *event;
1903 event = udev_monitor_receive_device(ec->udev_monitor);
1905 if (udev_event_is_hotplug(ec, event))
1906 update_outputs(ec, event);
1908 udev_device_unref(event);
1914 drm_restore(struct weston_compositor *ec)
1916 struct drm_compositor *d = (struct drm_compositor *) ec;
1918 if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0)
1919 weston_log("failed to drop master: %m\n");
1924 drm_free_configured_output(struct drm_configured_output *output)
1932 drm_destroy(struct weston_compositor *ec)
1934 struct drm_compositor *d = (struct drm_compositor *) ec;
1935 struct udev_seat *seat, *next;
1936 struct drm_configured_output *o, *n;
1938 wl_list_for_each_safe(seat, next, &ec->seat_list, base.link)
1939 udev_seat_destroy(seat);
1940 wl_list_for_each_safe(o, n, &configured_output_list, link)
1941 drm_free_configured_output(o);
1943 wl_event_source_remove(d->udev_drm_source);
1944 wl_event_source_remove(d->drm_source);
1946 weston_compositor_shutdown(ec);
1948 ec->renderer->destroy(ec);
1953 gbm_device_destroy(d->gbm);
1955 if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0)
1956 weston_log("failed to drop master: %m\n");
1957 tty_destroy(d->tty);
1963 drm_compositor_set_modes(struct drm_compositor *compositor)
1965 struct drm_output *output;
1966 struct drm_mode *drm_mode;
1969 wl_list_for_each(output, &compositor->base.output_list, base.link) {
1970 if (!output->current) {
1971 /* If something that would cause the output to
1972 * switch mode happened while in another vt, we
1973 * might not have a current drm_fb. In that case,
1974 * schedule a repaint and let drm_output_repaint
1975 * handle setting the mode. */
1976 weston_output_schedule_repaint(&output->base);
1980 drm_mode = (struct drm_mode *) output->base.current;
1981 ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id,
1982 output->current->fb_id, 0, 0,
1983 &output->connector_id, 1,
1984 &drm_mode->mode_info);
1987 "failed to set mode %dx%d for output at %d,%d: %m\n",
1988 drm_mode->base.width, drm_mode->base.height,
1989 output->base.x, output->base.y);
1995 vt_func(struct weston_compositor *compositor, int event)
1997 struct drm_compositor *ec = (struct drm_compositor *) compositor;
1998 struct udev_seat *seat;
1999 struct drm_sprite *sprite;
2000 struct drm_output *output;
2004 weston_log("entering VT\n");
2005 compositor->focus = 1;
2006 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 1)) {
2007 weston_log("failed to set master: %m\n");
2008 wl_display_terminate(compositor->wl_display);
2010 compositor->state = ec->prev_state;
2011 drm_compositor_set_modes(ec);
2012 weston_compositor_damage_all(compositor);
2013 wl_list_for_each(seat, &compositor->seat_list, base.link)
2014 udev_seat_enable(seat, ec->udev);
2017 weston_log("leaving VT\n");
2018 wl_list_for_each(seat, &compositor->seat_list, base.link)
2019 udev_seat_disable(seat);
2021 compositor->focus = 0;
2022 ec->prev_state = compositor->state;
2023 weston_compositor_offscreen(compositor);
2025 /* If we have a repaint scheduled (either from a
2026 * pending pageflip or the idle handler), make sure we
2027 * cancel that so we don't try to pageflip when we're
2028 * vt switched away. The OFFSCREEN state will prevent
2029 * further attemps at repainting. When we switch
2030 * back, we schedule a repaint, which will process
2031 * pending frame callbacks. */
2033 wl_list_for_each(output, &ec->base.output_list, base.link) {
2034 output->base.repaint_needed = 0;
2035 drmModeSetCursor(ec->drm.fd, output->crtc_id, 0, 0, 0);
2038 output = container_of(ec->base.output_list.next,
2039 struct drm_output, base.link);
2041 wl_list_for_each(sprite, &ec->sprite_list, link)
2042 drmModeSetPlane(ec->drm.fd,
2044 output->crtc_id, 0, 0,
2045 0, 0, 0, 0, 0, 0, 0, 0);
2047 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0)
2048 weston_log("failed to drop master: %m\n");
2055 switch_vt_binding(struct wl_seat *seat, uint32_t time, uint32_t key, void *data)
2057 struct drm_compositor *ec = data;
2059 tty_activate_vt(ec->tty, key - KEY_F1 + 1);
2064 * Some systems may have multiple DRM devices attached to a single seat. This
2065 * function loops over all devices and tries to find a PCI device with the
2066 * boot_vga sysfs attribute set to 1.
2067 * If no such device is found, the first DRM device reported by udev is used.
2069 static struct udev_device*
2070 find_primary_gpu(struct drm_compositor *ec, const char *seat)
2072 struct udev_enumerate *e;
2073 struct udev_list_entry *entry;
2074 const char *path, *device_seat, *id;
2075 struct udev_device *device, *drm_device, *pci;
2077 e = udev_enumerate_new(ec->udev);
2078 udev_enumerate_add_match_subsystem(e, "drm");
2079 udev_enumerate_add_match_sysname(e, "card[0-9]*");
2081 udev_enumerate_scan_devices(e);
2083 udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
2084 path = udev_list_entry_get_name(entry);
2085 device = udev_device_new_from_syspath(ec->udev, path);
2088 device_seat = udev_device_get_property_value(device, "ID_SEAT");
2090 device_seat = default_seat;
2091 if (strcmp(device_seat, seat)) {
2092 udev_device_unref(device);
2096 pci = udev_device_get_parent_with_subsystem_devtype(device,
2099 id = udev_device_get_sysattr_value(pci, "boot_vga");
2100 if (id && !strcmp(id, "1")) {
2102 udev_device_unref(drm_device);
2103 drm_device = device;
2109 drm_device = device;
2111 udev_device_unref(device);
2114 udev_enumerate_unref(e);
2119 planes_binding(struct wl_seat *seat, uint32_t time, uint32_t key, void *data)
2121 struct drm_compositor *c = data;
2125 c->cursors_are_broken ^= 1;
2128 c->sprites_are_broken ^= 1;
2131 c->sprites_hidden ^= 1;
2138 static struct weston_compositor *
2139 drm_compositor_create(struct wl_display *display,
2140 int connector, const char *seat, int tty, int pixman,
2141 int *argc, char *argv[], const char *config_file)
2143 struct drm_compositor *ec;
2144 struct udev_device *drm_device;
2145 struct wl_event_loop *loop;
2146 struct udev_seat *udev_seat, *next;
2150 weston_log("initializing drm backend\n");
2152 ec = malloc(sizeof *ec);
2155 memset(ec, 0, sizeof *ec);
2157 /* KMS support for sprites is not complete yet, so disable the
2158 * functionality for now. */
2159 ec->sprites_are_broken = 1;
2161 ec->use_pixman = pixman;
2163 if (weston_compositor_init(&ec->base, display, argc, argv,
2165 weston_log("%s failed\n", __func__);
2169 /* Check if we run drm-backend using weston-launch */
2170 if (ec->base.launcher_sock == -1 && geteuid() != 0) {
2171 weston_log("fatal: drm backend should be run "
2172 "using weston-launch binary or as root\n");
2173 goto err_compositor;
2176 ec->udev = udev_new();
2177 if (ec->udev == NULL) {
2178 weston_log("failed to initialize udev context\n");
2179 goto err_compositor;
2182 ec->base.wl_display = display;
2183 ec->tty = tty_create(&ec->base, vt_func, tty);
2185 weston_log("failed to initialize tty\n");
2189 drm_device = find_primary_gpu(ec, seat);
2190 if (drm_device == NULL) {
2191 weston_log("no drm device found\n");
2194 path = udev_device_get_syspath(drm_device);
2196 if (init_drm(ec, drm_device) < 0) {
2197 weston_log("failed to initialize kms\n");
2201 if (ec->use_pixman) {
2202 if (init_pixman(ec) < 0) {
2203 weston_log("failed to initialize pixman renderer\n");
2207 if (init_egl(ec) < 0) {
2208 weston_log("failed to initialize egl\n");
2213 ec->base.destroy = drm_destroy;
2214 ec->base.restore = drm_restore;
2218 ec->prev_state = WESTON_COMPOSITOR_ACTIVE;
2220 for (key = KEY_F1; key < KEY_F9; key++)
2221 weston_compositor_add_key_binding(&ec->base, key,
2222 MODIFIER_CTRL | MODIFIER_ALT,
2223 switch_vt_binding, ec);
2225 wl_list_init(&ec->sprite_list);
2228 if (create_outputs(ec, connector, drm_device) < 0) {
2229 weston_log("failed to create output for %s\n", path);
2235 if (udev_seat_create(&ec->base, ec->udev, seat) == NULL) {
2236 weston_log("failed to create input devices\n");
2240 loop = wl_display_get_event_loop(ec->base.wl_display);
2242 wl_event_loop_add_fd(loop, ec->drm.fd,
2243 WL_EVENT_READABLE, on_drm_input, ec);
2245 ec->udev_monitor = udev_monitor_new_from_netlink(ec->udev, "udev");
2246 if (ec->udev_monitor == NULL) {
2247 weston_log("failed to intialize udev monitor\n");
2248 goto err_drm_source;
2250 udev_monitor_filter_add_match_subsystem_devtype(ec->udev_monitor,
2252 ec->udev_drm_source =
2253 wl_event_loop_add_fd(loop,
2254 udev_monitor_get_fd(ec->udev_monitor),
2255 WL_EVENT_READABLE, udev_drm_event, ec);
2257 if (udev_monitor_enable_receiving(ec->udev_monitor) < 0) {
2258 weston_log("failed to enable udev-monitor receiving\n");
2259 goto err_udev_monitor;
2262 udev_device_unref(drm_device);
2264 weston_compositor_add_debug_binding(&ec->base, KEY_O,
2265 planes_binding, ec);
2266 weston_compositor_add_debug_binding(&ec->base, KEY_C,
2267 planes_binding, ec);
2268 weston_compositor_add_debug_binding(&ec->base, KEY_V,
2269 planes_binding, ec);
2274 wl_event_source_remove(ec->udev_drm_source);
2275 udev_monitor_unref(ec->udev_monitor);
2277 wl_event_source_remove(ec->drm_source);
2278 wl_list_for_each_safe(udev_seat, next, &ec->base.seat_list, base.link)
2279 udev_seat_destroy(udev_seat);
2281 ec->base.renderer->destroy(&ec->base);
2282 gbm_device_destroy(ec->gbm);
2283 destroy_sprites(ec);
2285 udev_device_unref(drm_device);
2287 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0)
2288 weston_log("failed to drop master: %m\n");
2289 tty_destroy(ec->tty);
2291 udev_unref(ec->udev);
2293 weston_compositor_shutdown(&ec->base);
2300 set_sync_flags(drmModeModeInfo *mode, char *hsync, char *vsync)
2304 if (strcmp(hsync, "+hsync") == 0)
2305 mode->flags |= DRM_MODE_FLAG_PHSYNC;
2306 else if (strcmp(hsync, "-hsync") == 0)
2307 mode->flags |= DRM_MODE_FLAG_NHSYNC;
2311 if (strcmp(vsync, "+vsync") == 0)
2312 mode->flags |= DRM_MODE_FLAG_PVSYNC;
2313 else if (strcmp(vsync, "-vsync") == 0)
2314 mode->flags |= DRM_MODE_FLAG_NVSYNC;
2322 check_for_modeline(struct drm_configured_output *output)
2324 drmModeModeInfo mode;
2330 mode.type = DRM_MODE_TYPE_USERDEF;
2335 if (sscanf(output_mode, "%f %hd %hd %hd %hd %hd %hd %hd %hd %s %s",
2336 &fclock, &mode.hdisplay,
2338 &mode.hsync_end, &mode.htotal,
2341 &mode.vsync_end, &mode.vtotal,
2342 hsync, vsync) == 11) {
2343 if (set_sync_flags(&mode, hsync, vsync))
2346 sprintf(mode_name, "%dx%d", mode.hdisplay, mode.vdisplay);
2347 strcpy(mode.name, mode_name);
2349 mode.clock = fclock * 1000;
2353 output->crtc_mode = mode;
2359 drm_output_set_transform(struct drm_configured_output *output)
2361 if (!output_transform) {
2362 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2366 if (!strcmp(output_transform, "normal"))
2367 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2368 else if (!strcmp(output_transform, "90"))
2369 output->transform = WL_OUTPUT_TRANSFORM_90;
2370 else if (!strcmp(output_transform, "180"))
2371 output->transform = WL_OUTPUT_TRANSFORM_180;
2372 else if (!strcmp(output_transform, "270"))
2373 output->transform = WL_OUTPUT_TRANSFORM_270;
2374 else if (!strcmp(output_transform, "flipped"))
2375 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED;
2376 else if (!strcmp(output_transform, "flipped-90"))
2377 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
2378 else if (!strcmp(output_transform, "flipped-180"))
2379 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
2380 else if (!strcmp(output_transform, "flipped-270"))
2381 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
2383 weston_log("Invalid transform \"%s\" for output %s\n",
2384 output_transform, output_name);
2385 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2388 free(output_transform);
2389 output_transform = NULL;
2393 output_section_done(void *data)
2395 struct drm_configured_output *output;
2397 output = malloc(sizeof *output);
2399 if (!output || !output_name || (output_name[0] == 'X') ||
2400 (!output_mode && !output_transform)) {
2403 free(output_transform);
2407 output_transform = NULL;
2411 output->config = OUTPUT_CONFIG_INVALID;
2412 output->name = output_name;
2413 output->mode = output_mode;
2416 if (strcmp(output_mode, "off") == 0)
2417 output->config = OUTPUT_CONFIG_OFF;
2418 else if (strcmp(output_mode, "preferred") == 0)
2419 output->config = OUTPUT_CONFIG_PREFERRED;
2420 else if (strcmp(output_mode, "current") == 0)
2421 output->config = OUTPUT_CONFIG_CURRENT;
2422 else if (sscanf(output_mode, "%dx%d",
2423 &output->width, &output->height) == 2)
2424 output->config = OUTPUT_CONFIG_MODE;
2425 else if (check_for_modeline(output) == 0)
2426 output->config = OUTPUT_CONFIG_MODELINE;
2428 if (output->config == OUTPUT_CONFIG_INVALID)
2429 weston_log("Invalid mode \"%s\" for output %s\n",
2430 output_mode, output_name);
2434 drm_output_set_transform(output);
2436 wl_list_insert(&configured_output_list, &output->link);
2438 if (output_transform)
2439 free(output_transform);
2440 output_transform = NULL;
2443 WL_EXPORT struct weston_compositor *
2444 backend_init(struct wl_display *display, int *argc, char *argv[],
2445 const char *config_file)
2447 int connector = 0, tty = 0, use_pixman = 0;
2448 const char *seat = default_seat;
2450 const struct weston_option drm_options[] = {
2451 { WESTON_OPTION_INTEGER, "connector", 0, &connector },
2452 { WESTON_OPTION_STRING, "seat", 0, &seat },
2453 { WESTON_OPTION_INTEGER, "tty", 0, &tty },
2454 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &option_current_mode },
2455 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
2458 parse_options(drm_options, ARRAY_LENGTH(drm_options), argc, argv);
2460 wl_list_init(&configured_output_list);
2462 const struct config_key drm_config_keys[] = {
2463 { "name", CONFIG_KEY_STRING, &output_name },
2464 { "mode", CONFIG_KEY_STRING, &output_mode },
2465 { "transform", CONFIG_KEY_STRING, &output_transform },
2468 const struct config_section config_section[] = {
2469 { "output", drm_config_keys,
2470 ARRAY_LENGTH(drm_config_keys), output_section_done },
2473 parse_config_file(config_file, config_section,
2474 ARRAY_LENGTH(config_section), NULL);
2476 return drm_compositor_create(display, connector, seat, tty, use_pixman,
2477 argc, argv, config_file);