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.
37 #include <linux/input.h>
42 #include <xf86drmMode.h>
43 #include <drm_fourcc.h>
46 #include <libbacklight.h>
49 #include "compositor.h"
50 #include "gl-renderer.h"
51 #include "pixman-renderer.h"
52 #include "udev-seat.h"
53 #include "launcher-util.h"
55 static int option_current_mode = 0;
56 static char *output_name;
57 static char *output_mode;
58 static char *output_transform;
59 static struct wl_list configured_output_list;
62 OUTPUT_CONFIG_INVALID = 0,
64 OUTPUT_CONFIG_PREFERRED,
65 OUTPUT_CONFIG_CURRENT,
67 OUTPUT_CONFIG_MODELINE
70 struct drm_configured_output {
74 int32_t width, height;
75 drmModeModeInfo crtc_mode;
76 enum output_config config;
80 struct drm_compositor {
81 struct weston_compositor base;
84 struct wl_event_source *drm_source;
86 struct udev_monitor *udev_monitor;
87 struct wl_event_source *udev_drm_source;
93 struct gbm_device *gbm;
96 uint32_t crtc_allocator;
97 uint32_t connector_allocator;
100 /* we need these parameters in order to not fail drmModeAddFB2()
101 * due to out of bounds dimensions, and then mistakenly set
102 * sprites_are_broken:
104 uint32_t min_width, max_width;
105 uint32_t min_height, max_height;
108 struct wl_list sprite_list;
109 int sprites_are_broken;
112 int cursors_are_broken;
120 struct weston_mode base;
121 drmModeModeInfo mode_info;
127 struct drm_output *output;
128 uint32_t fb_id, stride, handle, size;
130 int is_client_buffer;
131 struct weston_buffer_reference buffer_ref;
133 /* Used by gbm fbs */
136 /* Used by dumb fbs */
142 char monitor_name[13];
144 char serial_number[13];
148 struct weston_output base;
152 uint32_t connector_id;
153 drmModeCrtcPtr original_crtc;
154 struct drm_edid edid;
157 int page_flip_pending;
159 struct gbm_surface *surface;
160 struct gbm_bo *cursor_bo[2];
161 struct weston_plane cursor_plane;
162 struct weston_plane fb_plane;
163 struct weston_surface *cursor_surface;
165 struct drm_fb *current, *next;
166 struct backlight *backlight;
168 struct drm_fb *dumb[2];
169 pixman_image_t *image[2];
171 pixman_region32_t previous_damage;
175 * An output has a primary display plane plus zero or more sprites for
176 * blending display contents.
181 struct weston_plane plane;
183 struct drm_fb *current, *next;
184 struct drm_output *output;
185 struct drm_compositor *compositor;
187 uint32_t possible_crtcs;
189 uint32_t count_formats;
191 int32_t src_x, src_y;
192 uint32_t src_w, src_h;
193 uint32_t dest_x, dest_y;
194 uint32_t dest_w, dest_h;
199 static const char default_seat[] = "seat0";
202 drm_output_set_cursor(struct drm_output *output);
205 drm_sprite_crtc_supported(struct weston_output *output_base, uint32_t supported)
207 struct weston_compositor *ec = output_base->compositor;
208 struct drm_compositor *c =(struct drm_compositor *) ec;
209 struct drm_output *output = (struct drm_output *) output_base;
212 for (crtc = 0; crtc < c->num_crtcs; crtc++) {
213 if (c->crtcs[crtc] != output->crtc_id)
216 if (supported & (1 << crtc))
224 drm_fb_destroy_callback(struct gbm_bo *bo, void *data)
226 struct drm_fb *fb = data;
227 struct gbm_device *gbm = gbm_bo_get_device(bo);
230 drmModeRmFB(gbm_device_get_fd(gbm), fb->fb_id);
232 weston_buffer_reference(&fb->buffer_ref, NULL);
237 static struct drm_fb *
238 drm_fb_create_dumb(struct drm_compositor *ec, unsigned width, unsigned height)
243 struct drm_mode_create_dumb create_arg;
244 struct drm_mode_destroy_dumb destroy_arg;
245 struct drm_mode_map_dumb map_arg;
247 fb = calloc(1, sizeof *fb);
252 create_arg.width = width;
253 create_arg.height = height;
255 ret = drmIoctl(ec->drm.fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg);
259 fb->handle = create_arg.handle;
260 fb->stride = create_arg.pitch;
261 fb->size = create_arg.size;
264 ret = drmModeAddFB(ec->drm.fd, width, height, 24, 32,
265 fb->stride, fb->handle, &fb->fb_id);
269 memset(&map_arg, 0, sizeof(map_arg));
270 map_arg.handle = fb->handle;
271 ret = drmIoctl(fb->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
275 fb->map = mmap(0, fb->size, PROT_WRITE,
276 MAP_SHARED, ec->drm.fd, map_arg.offset);
277 if (fb->map == MAP_FAILED)
283 drmModeRmFB(ec->drm.fd, fb->fb_id);
285 memset(&destroy_arg, 0, sizeof(destroy_arg));
286 destroy_arg.handle = create_arg.handle;
287 drmIoctl(ec->drm.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
294 drm_fb_destroy_dumb(struct drm_fb *fb)
296 struct drm_mode_destroy_dumb destroy_arg;
302 drmModeRmFB(fb->fd, fb->fb_id);
304 weston_buffer_reference(&fb->buffer_ref, NULL);
306 munmap(fb->map, fb->size);
308 memset(&destroy_arg, 0, sizeof(destroy_arg));
309 destroy_arg.handle = fb->handle;
310 drmIoctl(fb->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
315 static struct drm_fb *
316 drm_fb_get_from_bo(struct gbm_bo *bo,
317 struct drm_compositor *compositor, uint32_t format)
319 struct drm_fb *fb = gbm_bo_get_user_data(bo);
320 uint32_t width, height;
321 uint32_t handles[4], pitches[4], offsets[4];
327 fb = calloc(1, sizeof *fb);
333 width = gbm_bo_get_width(bo);
334 height = gbm_bo_get_height(bo);
335 fb->stride = gbm_bo_get_stride(bo);
336 fb->handle = gbm_bo_get_handle(bo).u32;
337 fb->size = fb->stride * height;
338 fb->fd = compositor->drm.fd;
340 if (compositor->min_width > width || width > compositor->max_width ||
341 compositor->min_height > height ||
342 height > compositor->max_height) {
343 weston_log("bo geometry out of bounds\n");
349 if (format && !compositor->no_addfb2) {
350 handles[0] = fb->handle;
351 pitches[0] = fb->stride;
354 ret = drmModeAddFB2(compositor->drm.fd, width, height,
355 format, handles, pitches, offsets,
358 weston_log("addfb2 failed: %m\n");
359 compositor->no_addfb2 = 1;
360 compositor->sprites_are_broken = 1;
365 ret = drmModeAddFB(compositor->drm.fd, width, height, 24, 32,
366 fb->stride, fb->handle, &fb->fb_id);
369 weston_log("failed to create kms fb: %m\n");
373 gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback);
383 drm_fb_set_buffer(struct drm_fb *fb, struct wl_buffer *buffer)
385 assert(fb->buffer_ref.buffer == NULL);
387 fb->is_client_buffer = 1;
389 weston_buffer_reference(&fb->buffer_ref, buffer);
393 drm_output_release_fb(struct drm_output *output, struct drm_fb *fb)
399 (fb != output->dumb[0] && fb != output->dumb[1])) {
400 drm_fb_destroy_dumb(fb);
402 if (fb->is_client_buffer)
403 gbm_bo_destroy(fb->bo);
405 gbm_surface_release_buffer(output->surface,
406 output->current->bo);
411 drm_output_check_scanout_format(struct drm_output *output,
412 struct weston_surface *es, struct gbm_bo *bo)
417 format = gbm_bo_get_format(bo);
420 case GBM_FORMAT_XRGB8888:
422 case GBM_FORMAT_ARGB8888:
423 /* We can only scanout an ARGB buffer if the surface's
424 * opaque region covers the whole output */
425 pixman_region32_init(&r);
426 pixman_region32_subtract(&r, &output->base.region,
429 if (!pixman_region32_not_empty(&r))
430 format = GBM_FORMAT_XRGB8888;
434 pixman_region32_fini(&r);
442 static struct weston_plane *
443 drm_output_prepare_scanout_surface(struct weston_output *_output,
444 struct weston_surface *es)
446 struct drm_output *output = (struct drm_output *) _output;
447 struct drm_compositor *c =
448 (struct drm_compositor *) output->base.compositor;
449 struct wl_buffer *buffer = es->buffer_ref.buffer;
453 if (es->geometry.x != output->base.x ||
454 es->geometry.y != output->base.y ||
455 buffer == NULL || c->gbm == NULL ||
456 buffer->width != output->base.current->width ||
457 buffer->height != output->base.current->height ||
458 output->base.transform != es->buffer_transform ||
459 es->transform.enabled)
462 bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
463 buffer, GBM_BO_USE_SCANOUT);
465 /* Unable to use the buffer for scanout */
469 format = drm_output_check_scanout_format(output, es, bo);
475 output->next = drm_fb_get_from_bo(bo, c, format);
481 drm_fb_set_buffer(output->next, buffer);
483 return &output->fb_plane;
487 drm_output_render_gl(struct drm_output *output, pixman_region32_t *damage)
489 struct drm_compositor *c =
490 (struct drm_compositor *) output->base.compositor;
493 c->base.renderer->repaint_output(&output->base, damage);
495 bo = gbm_surface_lock_front_buffer(output->surface);
497 weston_log("failed to lock front buffer: %m\n");
501 output->next = drm_fb_get_from_bo(bo, c, GBM_FORMAT_XRGB8888);
503 weston_log("failed to get drm_fb for bo\n");
504 gbm_surface_release_buffer(output->surface, bo);
510 drm_output_render_pixman(struct drm_output *output, pixman_region32_t *damage)
512 struct weston_compositor *ec = output->base.compositor;
513 pixman_region32_t total_damage, previous_damage;
515 pixman_region32_init(&total_damage);
516 pixman_region32_init(&previous_damage);
518 pixman_region32_copy(&previous_damage, damage);
520 pixman_region32_union(&total_damage, damage, &output->previous_damage);
521 pixman_region32_copy(&output->previous_damage, &previous_damage);
523 output->current_image ^= 1;
525 output->next = output->dumb[output->current_image];
526 pixman_renderer_output_set_buffer(&output->base,
527 output->image[output->current_image]);
529 ec->renderer->repaint_output(&output->base, &total_damage);
531 pixman_region32_fini(&total_damage);
532 pixman_region32_fini(&previous_damage);
536 drm_output_render(struct drm_output *output, pixman_region32_t *damage)
538 struct drm_compositor *c =
539 (struct drm_compositor *) output->base.compositor;
542 drm_output_render_pixman(output, damage);
544 drm_output_render_gl(output, damage);
546 pixman_region32_subtract(&c->base.primary_plane.damage,
547 &c->base.primary_plane.damage, damage);
551 drm_output_set_gamma(struct weston_output *output_base,
552 uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b)
555 struct drm_output *output = (struct drm_output *) output_base;
556 struct drm_compositor *compositor = (struct drm_compositor *) output->base.compositor;
559 if (output_base->gamma_size != size)
561 if (!output->original_crtc)
564 rc = drmModeCrtcSetGamma(compositor->drm.fd,
568 weston_log("set gamma failed: %m\n");
572 drm_output_repaint(struct weston_output *output_base,
573 pixman_region32_t *damage)
575 struct drm_output *output = (struct drm_output *) output_base;
576 struct drm_compositor *compositor =
577 (struct drm_compositor *) output->base.compositor;
578 struct drm_sprite *s;
579 struct drm_mode *mode;
583 drm_output_render(output, damage);
587 mode = container_of(output->base.current, struct drm_mode, base);
588 if (!output->current) {
589 ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id,
590 output->next->fb_id, 0, 0,
591 &output->connector_id, 1,
594 weston_log("set mode failed: %m\n");
599 if (drmModePageFlip(compositor->drm.fd, output->crtc_id,
601 DRM_MODE_PAGE_FLIP_EVENT, output) < 0) {
602 weston_log("queueing pageflip failed: %m\n");
606 output->page_flip_pending = 1;
608 drm_output_set_cursor(output);
611 * Now, update all the sprite surfaces
613 wl_list_for_each(s, &compositor->sprite_list, link) {
614 uint32_t flags = 0, fb_id = 0;
616 .request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT,
617 .request.sequence = 1,
620 if ((!s->current && !s->next) ||
621 !drm_sprite_crtc_supported(output_base, s->possible_crtcs))
624 if (s->next && !compositor->sprites_hidden)
625 fb_id = s->next->fb_id;
627 ret = drmModeSetPlane(compositor->drm.fd, s->plane_id,
628 output->crtc_id, fb_id, flags,
629 s->dest_x, s->dest_y,
630 s->dest_w, s->dest_h,
634 weston_log("setplane failed: %d: %s\n",
635 ret, strerror(errno));
637 if (output->pipe > 0)
638 vbl.request.type |= DRM_VBLANK_SECONDARY;
641 * Queue a vblank signal so we know when the surface
642 * becomes active on the display or has been replaced.
644 vbl.request.signal = (unsigned long)s;
645 ret = drmWaitVBlank(compositor->drm.fd, &vbl);
647 weston_log("vblank event request failed: %d: %s\n",
648 ret, strerror(errno));
652 output->vblank_pending = 1;
659 drm_output_start_repaint_loop(struct weston_output *output_base)
661 struct drm_output *output = (struct drm_output *) output_base;
662 struct drm_compositor *compositor = (struct drm_compositor *)
663 output_base->compositor;
667 fb_id = output->current->fb_id;
669 fb_id = output->original_crtc->buffer_id;
671 if (drmModePageFlip(compositor->drm.fd, output->crtc_id, fb_id,
672 DRM_MODE_PAGE_FLIP_EVENT, output) < 0) {
673 weston_log("queueing pageflip failed: %m\n");
679 vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec,
682 struct drm_sprite *s = (struct drm_sprite *)data;
683 struct drm_output *output = s->output;
686 output->vblank_pending = 0;
688 drm_output_release_fb(output, s->current);
689 s->current = s->next;
692 if (!output->page_flip_pending) {
693 msecs = sec * 1000 + usec / 1000;
694 weston_output_finish_frame(&output->base, msecs);
699 page_flip_handler(int fd, unsigned int frame,
700 unsigned int sec, unsigned int usec, void *data)
702 struct drm_output *output = (struct drm_output *) data;
705 /* We don't set page_flip_pending on start_repaint_loop, in that case
706 * we just want to page flip to the current buffer to get an accurate
708 if (output->page_flip_pending) {
709 drm_output_release_fb(output, output->current);
710 output->current = output->next;
714 output->page_flip_pending = 0;
716 if (!output->vblank_pending) {
717 msecs = sec * 1000 + usec / 1000;
718 weston_output_finish_frame(&output->base, msecs);
723 drm_output_check_sprite_format(struct drm_sprite *s,
724 struct weston_surface *es, struct gbm_bo *bo)
728 format = gbm_bo_get_format(bo);
730 if (format == GBM_FORMAT_ARGB8888) {
733 pixman_region32_init_rect(&r, 0, 0,
735 es->geometry.height);
736 pixman_region32_subtract(&r, &r, &es->opaque);
738 if (!pixman_region32_not_empty(&r))
739 format = GBM_FORMAT_XRGB8888;
741 pixman_region32_fini(&r);
744 for (i = 0; i < s->count_formats; i++)
745 if (s->formats[i] == format)
752 drm_surface_transform_supported(struct weston_surface *es)
754 return !es->transform.enabled ||
755 (es->transform.matrix.type < WESTON_MATRIX_TRANSFORM_ROTATE);
758 static struct weston_plane *
759 drm_output_prepare_overlay_surface(struct weston_output *output_base,
760 struct weston_surface *es)
762 struct weston_compositor *ec = output_base->compositor;
763 struct drm_compositor *c =(struct drm_compositor *) ec;
764 struct drm_sprite *s;
767 pixman_region32_t dest_rect, src_rect;
768 pixman_box32_t *box, tbox;
770 wl_fixed_t sx1, sy1, sx2, sy2;
775 if (es->buffer_transform != output_base->transform)
778 if (c->sprites_are_broken)
781 if (es->output_mask != (1u << output_base->id))
784 if (es->buffer_ref.buffer == NULL)
787 if (es->alpha != 1.0f)
790 if (wl_buffer_is_shm(es->buffer_ref.buffer))
793 if (!drm_surface_transform_supported(es))
796 wl_list_for_each(s, &c->sprite_list, link) {
797 if (!drm_sprite_crtc_supported(output_base, s->possible_crtcs))
806 /* No sprites available */
810 bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
811 es->buffer_ref.buffer, GBM_BO_USE_SCANOUT);
815 format = drm_output_check_sprite_format(s, es, bo);
821 s->next = drm_fb_get_from_bo(bo, c, format);
827 drm_fb_set_buffer(s->next, es->buffer_ref.buffer);
829 box = pixman_region32_extents(&es->transform.boundingbox);
830 s->plane.x = box->x1;
831 s->plane.y = box->y1;
834 * Calculate the source & dest rects properly based on actual
835 * position (note the caller has called weston_surface_update_transform()
838 pixman_region32_init(&dest_rect);
839 pixman_region32_intersect(&dest_rect, &es->transform.boundingbox,
840 &output_base->region);
841 pixman_region32_translate(&dest_rect, -output_base->x, -output_base->y);
842 box = pixman_region32_extents(&dest_rect);
843 tbox = weston_transformed_rect(output_base->width,
845 output_base->transform, *box);
848 s->dest_w = tbox.x2 - tbox.x1;
849 s->dest_h = tbox.y2 - tbox.y1;
850 pixman_region32_fini(&dest_rect);
852 pixman_region32_init(&src_rect);
853 pixman_region32_intersect(&src_rect, &es->transform.boundingbox,
854 &output_base->region);
855 box = pixman_region32_extents(&src_rect);
857 weston_surface_from_global_fixed(es,
858 wl_fixed_from_int(box->x1),
859 wl_fixed_from_int(box->y1),
861 weston_surface_from_global_fixed(es,
862 wl_fixed_from_int(box->x2),
863 wl_fixed_from_int(box->y2),
870 if (sx2 > wl_fixed_from_int(es->geometry.width))
871 sx2 = wl_fixed_from_int(es->geometry.width);
872 if (sy2 > wl_fixed_from_int(es->geometry.height))
873 sy2 = wl_fixed_from_int(es->geometry.height);
880 tbox = weston_transformed_rect(wl_fixed_from_int(es->geometry.width),
881 wl_fixed_from_int(es->geometry.height),
882 es->buffer_transform, tbox);
884 s->src_x = tbox.x1 << 8;
885 s->src_y = tbox.y1 << 8;
886 s->src_w = (tbox.x2 - tbox.x1) << 8;
887 s->src_h = (tbox.y2 - tbox.y1) << 8;
888 pixman_region32_fini(&src_rect);
893 static struct weston_plane *
894 drm_output_prepare_cursor_surface(struct weston_output *output_base,
895 struct weston_surface *es)
897 struct drm_compositor *c =
898 (struct drm_compositor *) output_base->compositor;
899 struct drm_output *output = (struct drm_output *) output_base;
903 if (output->base.transform != WL_OUTPUT_TRANSFORM_NORMAL)
905 if (output->cursor_surface)
907 if (es->output_mask != (1u << output_base->id))
909 if (c->cursors_are_broken)
911 if (es->buffer_ref.buffer == NULL ||
912 !wl_buffer_is_shm(es->buffer_ref.buffer) ||
913 es->geometry.width > 64 || es->geometry.height > 64)
916 output->cursor_surface = es;
918 return &output->cursor_plane;
922 drm_output_set_cursor(struct drm_output *output)
924 struct weston_surface *es = output->cursor_surface;
925 struct drm_compositor *c =
926 (struct drm_compositor *) output->base.compositor;
927 EGLint handle, stride;
929 uint32_t buf[64 * 64];
933 output->cursor_surface = NULL;
935 drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
939 if (es->buffer_ref.buffer &&
940 pixman_region32_not_empty(&output->cursor_plane.damage)) {
941 pixman_region32_fini(&output->cursor_plane.damage);
942 pixman_region32_init(&output->cursor_plane.damage);
943 output->current_cursor ^= 1;
944 bo = output->cursor_bo[output->current_cursor];
945 memset(buf, 0, sizeof buf);
946 stride = wl_shm_buffer_get_stride(es->buffer_ref.buffer);
947 s = wl_shm_buffer_get_data(es->buffer_ref.buffer);
948 for (i = 0; i < es->geometry.height; i++)
949 memcpy(buf + i * 64, s + i * stride,
950 es->geometry.width * 4);
952 if (gbm_bo_write(bo, buf, sizeof buf) < 0)
953 weston_log("failed update cursor: %m\n");
955 handle = gbm_bo_get_handle(bo).s32;
956 if (drmModeSetCursor(c->drm.fd,
957 output->crtc_id, handle, 64, 64)) {
958 weston_log("failed to set cursor: %m\n");
959 c->cursors_are_broken = 1;
963 x = es->geometry.x - output->base.x;
964 y = es->geometry.y - output->base.y;
965 if (output->cursor_plane.x != x || output->cursor_plane.y != y) {
966 if (drmModeMoveCursor(c->drm.fd, output->crtc_id, x, y)) {
967 weston_log("failed to move cursor: %m\n");
968 c->cursors_are_broken = 1;
971 output->cursor_plane.x = x;
972 output->cursor_plane.y = y;
977 drm_assign_planes(struct weston_output *output)
979 struct drm_compositor *c =
980 (struct drm_compositor *) output->compositor;
981 struct weston_surface *es, *next;
982 pixman_region32_t overlap, surface_overlap;
983 struct weston_plane *primary, *next_plane;
986 * Find a surface for each sprite in the output using some heuristics:
988 * 2) frequency of update
989 * 3) opacity (though some hw might support alpha blending)
990 * 4) clipping (this can be fixed with color keys)
992 * The idea is to save on blitting since this should save power.
993 * If we can get a large video surface on the sprite for example,
994 * the main display surface may not need to update at all, and
995 * the client buffer can be used directly for the sprite surface
996 * as we do for flipping full screen surfaces.
998 pixman_region32_init(&overlap);
999 primary = &c->base.primary_plane;
1000 wl_list_for_each_safe(es, next, &c->base.surface_list, link) {
1001 /* test whether this buffer can ever go into a plane:
1002 * non-shm, or small enough to be a cursor
1004 if ((es->buffer_ref.buffer &&
1005 !wl_buffer_is_shm(es->buffer_ref.buffer)) ||
1006 (es->geometry.width <= 64 && es->geometry.height <= 64))
1007 es->keep_buffer = 1;
1009 es->keep_buffer = 0;
1011 pixman_region32_init(&surface_overlap);
1012 pixman_region32_intersect(&surface_overlap, &overlap,
1013 &es->transform.boundingbox);
1016 if (pixman_region32_not_empty(&surface_overlap))
1017 next_plane = primary;
1018 if (next_plane == NULL)
1019 next_plane = drm_output_prepare_cursor_surface(output, es);
1020 if (next_plane == NULL)
1021 next_plane = drm_output_prepare_scanout_surface(output, es);
1022 if (next_plane == NULL)
1023 next_plane = drm_output_prepare_overlay_surface(output, es);
1024 if (next_plane == NULL)
1025 next_plane = primary;
1026 weston_surface_move_to_plane(es, next_plane);
1027 if (next_plane == primary)
1028 pixman_region32_union(&overlap, &overlap,
1029 &es->transform.boundingbox);
1031 pixman_region32_fini(&surface_overlap);
1033 pixman_region32_fini(&overlap);
1037 drm_output_fini_pixman(struct drm_output *output);
1040 drm_output_destroy(struct weston_output *output_base)
1042 struct drm_output *output = (struct drm_output *) output_base;
1043 struct drm_compositor *c =
1044 (struct drm_compositor *) output->base.compositor;
1045 drmModeCrtcPtr origcrtc = output->original_crtc;
1047 if (output->backlight)
1048 backlight_destroy(output->backlight);
1050 /* Turn off hardware cursor */
1051 drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
1053 /* Restore original CRTC state */
1054 drmModeSetCrtc(c->drm.fd, origcrtc->crtc_id, origcrtc->buffer_id,
1055 origcrtc->x, origcrtc->y,
1056 &output->connector_id, 1, &origcrtc->mode);
1057 drmModeFreeCrtc(origcrtc);
1059 c->crtc_allocator &= ~(1 << output->crtc_id);
1060 c->connector_allocator &= ~(1 << output->connector_id);
1062 if (c->use_pixman) {
1063 drm_output_fini_pixman(output);
1065 gl_renderer_output_destroy(output_base);
1066 gbm_surface_destroy(output->surface);
1069 weston_plane_release(&output->fb_plane);
1070 weston_plane_release(&output->cursor_plane);
1072 weston_output_destroy(&output->base);
1073 wl_list_remove(&output->base.link);
1078 static struct drm_mode *
1079 choose_mode (struct drm_output *output, struct weston_mode *target_mode)
1081 struct drm_mode *tmp_mode = NULL, *mode;
1083 if (output->base.current->width == target_mode->width &&
1084 output->base.current->height == target_mode->height &&
1085 (output->base.current->refresh == target_mode->refresh ||
1086 target_mode->refresh == 0))
1087 return (struct drm_mode *)output->base.current;
1089 wl_list_for_each(mode, &output->base.mode_list, base.link) {
1090 if (mode->mode_info.hdisplay == target_mode->width &&
1091 mode->mode_info.vdisplay == target_mode->height) {
1092 if (mode->mode_info.vrefresh == target_mode->refresh ||
1093 target_mode->refresh == 0) {
1095 } else if (!tmp_mode)
1104 drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec);
1106 drm_output_init_pixman(struct drm_output *output, struct drm_compositor *c);
1109 drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode)
1111 struct drm_output *output;
1112 struct drm_mode *drm_mode;
1113 struct drm_compositor *ec;
1115 if (output_base == NULL) {
1116 weston_log("output is NULL.\n");
1121 weston_log("mode is NULL.\n");
1125 ec = (struct drm_compositor *)output_base->compositor;
1126 output = (struct drm_output *)output_base;
1127 drm_mode = choose_mode (output, mode);
1130 weston_log("%s, invalid resolution:%dx%d\n", __func__, mode->width, mode->height);
1134 if (&drm_mode->base == output->base.current)
1137 output->base.current->flags = 0;
1139 output->base.current = &drm_mode->base;
1140 output->base.current->flags =
1141 WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
1143 /* reset rendering stuff. */
1144 drm_output_release_fb(output, output->current);
1145 drm_output_release_fb(output, output->next);
1146 output->current = output->next = NULL;
1148 if (ec->use_pixman) {
1149 drm_output_fini_pixman(output);
1150 if (drm_output_init_pixman(output, ec) < 0) {
1151 weston_log("failed to init output pixman state with "
1156 gl_renderer_output_destroy(&output->base);
1157 gbm_surface_destroy(output->surface);
1159 if (drm_output_init_egl(output, ec) < 0) {
1160 weston_log("failed to init output egl state with "
1170 on_drm_input(int fd, uint32_t mask, void *data)
1172 drmEventContext evctx;
1174 memset(&evctx, 0, sizeof evctx);
1175 evctx.version = DRM_EVENT_CONTEXT_VERSION;
1176 evctx.page_flip_handler = page_flip_handler;
1177 evctx.vblank_handler = vblank_handler;
1178 drmHandleEvent(fd, &evctx);
1184 init_drm(struct drm_compositor *ec, struct udev_device *device)
1186 const char *filename, *sysnum;
1189 sysnum = udev_device_get_sysnum(device);
1191 ec->drm.id = atoi(sysnum);
1192 if (!sysnum || ec->drm.id < 0) {
1193 weston_log("cannot get device sysnum\n");
1197 filename = udev_device_get_devnode(device);
1198 fd = open(filename, O_RDWR | O_CLOEXEC);
1200 /* Probably permissions error */
1201 weston_log("couldn't open %s, skipping\n",
1202 udev_device_get_devnode(device));
1206 weston_log("using %s\n", filename);
1215 init_egl(struct drm_compositor *ec)
1217 ec->gbm = gbm_create_device(ec->drm.fd);
1222 if (gl_renderer_create(&ec->base, ec->gbm, gl_renderer_opaque_attribs,
1224 gbm_device_destroy(ec->gbm);
1232 init_pixman(struct drm_compositor *ec)
1234 return pixman_renderer_init(&ec->base);
1237 static struct drm_mode *
1238 drm_output_add_mode(struct drm_output *output, drmModeModeInfo *info)
1240 struct drm_mode *mode;
1243 mode = malloc(sizeof *mode);
1247 mode->base.flags = 0;
1248 mode->base.width = info->hdisplay;
1249 mode->base.height = info->vdisplay;
1251 /* Calculate higher precision (mHz) refresh rate */
1252 refresh = (info->clock * 1000000LL / info->htotal +
1253 info->vtotal / 2) / info->vtotal;
1255 if (info->flags & DRM_MODE_FLAG_INTERLACE)
1257 if (info->flags & DRM_MODE_FLAG_DBLSCAN)
1259 if (info->vscan > 1)
1260 refresh /= info->vscan;
1262 mode->base.refresh = refresh;
1263 mode->mode_info = *info;
1265 if (info->type & DRM_MODE_TYPE_PREFERRED)
1266 mode->base.flags |= WL_OUTPUT_MODE_PREFERRED;
1268 wl_list_insert(output->base.mode_list.prev, &mode->base.link);
1274 drm_subpixel_to_wayland(int drm_value)
1276 switch (drm_value) {
1278 case DRM_MODE_SUBPIXEL_UNKNOWN:
1279 return WL_OUTPUT_SUBPIXEL_UNKNOWN;
1280 case DRM_MODE_SUBPIXEL_NONE:
1281 return WL_OUTPUT_SUBPIXEL_NONE;
1282 case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB:
1283 return WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB;
1284 case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR:
1285 return WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR;
1286 case DRM_MODE_SUBPIXEL_VERTICAL_RGB:
1287 return WL_OUTPUT_SUBPIXEL_VERTICAL_RGB;
1288 case DRM_MODE_SUBPIXEL_VERTICAL_BGR:
1289 return WL_OUTPUT_SUBPIXEL_VERTICAL_BGR;
1293 /* returns a value between 0-255 range, where higher is brighter */
1295 drm_get_backlight(struct drm_output *output)
1297 long brightness, max_brightness, norm;
1299 brightness = backlight_get_brightness(output->backlight);
1300 max_brightness = backlight_get_max_brightness(output->backlight);
1302 /* convert it on a scale of 0 to 255 */
1303 norm = (brightness * 255)/(max_brightness);
1305 return (uint32_t) norm;
1308 /* values accepted are between 0-255 range */
1310 drm_set_backlight(struct weston_output *output_base, uint32_t value)
1312 struct drm_output *output = (struct drm_output *) output_base;
1313 long max_brightness, new_brightness;
1315 if (!output->backlight)
1321 max_brightness = backlight_get_max_brightness(output->backlight);
1323 /* get denormalized value */
1324 new_brightness = (value * max_brightness) / 255;
1326 backlight_set_brightness(output->backlight, new_brightness);
1329 static drmModePropertyPtr
1330 drm_get_prop(int fd, drmModeConnectorPtr connector, const char *name)
1332 drmModePropertyPtr props;
1335 for (i = 0; i < connector->count_props; i++) {
1336 props = drmModeGetProperty(fd, connector->props[i]);
1340 if (!strcmp(props->name, name))
1343 drmModeFreeProperty(props);
1350 drm_set_dpms(struct weston_output *output_base, enum dpms_enum level)
1352 struct drm_output *output = (struct drm_output *) output_base;
1353 struct weston_compositor *ec = output_base->compositor;
1354 struct drm_compositor *c = (struct drm_compositor *) ec;
1355 drmModeConnectorPtr connector;
1356 drmModePropertyPtr prop;
1358 connector = drmModeGetConnector(c->drm.fd, output->connector_id);
1362 prop = drm_get_prop(c->drm.fd, connector, "DPMS");
1364 drmModeFreeConnector(connector);
1368 drmModeConnectorSetProperty(c->drm.fd, connector->connector_id,
1369 prop->prop_id, level);
1370 drmModeFreeProperty(prop);
1371 drmModeFreeConnector(connector);
1374 static const char *connector_type_names[] = {
1393 find_crtc_for_connector(struct drm_compositor *ec,
1394 drmModeRes *resources, drmModeConnector *connector)
1396 drmModeEncoder *encoder;
1397 uint32_t possible_crtcs;
1400 for (j = 0; j < connector->count_encoders; j++) {
1401 encoder = drmModeGetEncoder(ec->drm.fd, connector->encoders[j]);
1402 if (encoder == NULL) {
1403 weston_log("Failed to get encoder.\n");
1406 possible_crtcs = encoder->possible_crtcs;
1407 drmModeFreeEncoder(encoder);
1409 for (i = 0; i < resources->count_crtcs; i++) {
1410 if (possible_crtcs & (1 << i) &&
1411 !(ec->crtc_allocator & (1 << resources->crtcs[i])))
1419 /* Init output state that depends on gl or gbm */
1421 drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec)
1425 output->surface = gbm_surface_create(ec->gbm,
1426 output->base.current->width,
1427 output->base.current->height,
1428 GBM_FORMAT_XRGB8888,
1429 GBM_BO_USE_SCANOUT |
1430 GBM_BO_USE_RENDERING);
1431 if (!output->surface) {
1432 weston_log("failed to create gbm surface\n");
1436 if (gl_renderer_output_create(&output->base, output->surface) < 0) {
1437 weston_log("failed to create gl renderer output state\n");
1438 gbm_surface_destroy(output->surface);
1442 flags = GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE;
1444 for (i = 0; i < 2; i++) {
1445 if (output->cursor_bo[i])
1448 output->cursor_bo[i] =
1449 gbm_bo_create(ec->gbm, 64, 64, GBM_FORMAT_ARGB8888,
1453 if (output->cursor_bo[0] == NULL || output->cursor_bo[1] == NULL) {
1454 weston_log("cursor buffers unavailable, using gl cursors\n");
1455 ec->cursors_are_broken = 1;
1462 drm_output_init_pixman(struct drm_output *output, struct drm_compositor *c)
1464 int w = output->base.current->width;
1465 int h = output->base.current->height;
1468 /* FIXME error checking */
1470 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1471 output->dumb[i] = drm_fb_create_dumb(c, w, h);
1472 if (!output->dumb[i])
1476 pixman_image_create_bits(PIXMAN_x8r8g8b8, w, h,
1477 output->dumb[i]->map,
1478 output->dumb[i]->stride);
1479 if (!output->image[i])
1483 if (pixman_renderer_output_create(&output->base) < 0)
1486 pixman_region32_init_rect(&output->previous_damage,
1487 output->base.x, output->base.y, w, h);
1492 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1493 if (output->dumb[i])
1494 drm_fb_destroy_dumb(output->dumb[i]);
1495 if (output->image[i])
1496 pixman_image_unref(output->image[i]);
1498 output->dumb[i] = NULL;
1499 output->image[i] = NULL;
1506 drm_output_fini_pixman(struct drm_output *output)
1510 pixman_renderer_output_destroy(&output->base);
1511 pixman_region32_fini(&output->previous_damage);
1513 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1514 drm_fb_destroy_dumb(output->dumb[i]);
1515 pixman_image_unref(output->image[i]);
1516 output->dumb[i] = NULL;
1517 output->image[i] = NULL;
1522 edid_parse_string(const uint8_t *data, char text[])
1527 /* this is always 12 bytes, but we can't guarantee it's null
1528 * terminated or not junk. */
1529 strncpy(text, (const char *) data, 12);
1531 /* remove insane chars */
1532 for (i = 0; text[i] != '\0'; i++) {
1533 if (text[i] == '\n' ||
1540 /* ensure string is printable */
1541 for (i = 0; text[i] != '\0'; i++) {
1542 if (!isprint(text[i])) {
1548 /* if the string is random junk, ignore the string */
1553 #define EDID_DESCRIPTOR_ALPHANUMERIC_DATA_STRING 0xfe
1554 #define EDID_DESCRIPTOR_DISPLAY_PRODUCT_NAME 0xfc
1555 #define EDID_DESCRIPTOR_DISPLAY_PRODUCT_SERIAL_NUMBER 0xff
1556 #define EDID_OFFSET_DATA_BLOCKS 0x36
1557 #define EDID_OFFSET_LAST_BLOCK 0x6c
1558 #define EDID_OFFSET_PNPID 0x08
1559 #define EDID_OFFSET_SERIAL 0x0c
1562 edid_parse(struct drm_edid *edid, const uint8_t *data, size_t length)
1565 uint32_t serial_number;
1570 if (data[0] != 0x00 || data[1] != 0xff)
1573 /* decode the PNP ID from three 5 bit words packed into 2 bytes
1578 edid->pnp_id[0] = 'A' + ((data[EDID_OFFSET_PNPID + 0] & 0x7c) / 4) - 1;
1579 edid->pnp_id[1] = 'A' + ((data[EDID_OFFSET_PNPID + 0] & 0x3) * 8) + ((data[EDID_OFFSET_PNPID + 1] & 0xe0) / 32) - 1;
1580 edid->pnp_id[2] = 'A' + (data[EDID_OFFSET_PNPID + 1] & 0x1f) - 1;
1581 edid->pnp_id[3] = '\0';
1583 /* maybe there isn't a ASCII serial number descriptor, so use this instead */
1584 serial_number = (uint32_t) data[EDID_OFFSET_SERIAL + 0];
1585 serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 1] * 0x100;
1586 serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 2] * 0x10000;
1587 serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 3] * 0x1000000;
1588 if (serial_number > 0)
1589 sprintf(edid->serial_number, "%lu", (unsigned long) serial_number);
1591 /* parse EDID data */
1592 for (i = EDID_OFFSET_DATA_BLOCKS;
1593 i <= EDID_OFFSET_LAST_BLOCK;
1595 /* ignore pixel clock data */
1601 /* any useful blocks? */
1602 if (data[i+3] == EDID_DESCRIPTOR_DISPLAY_PRODUCT_NAME) {
1603 edid_parse_string(&data[i+5],
1604 edid->monitor_name);
1605 } else if (data[i+3] == EDID_DESCRIPTOR_DISPLAY_PRODUCT_SERIAL_NUMBER) {
1606 edid_parse_string(&data[i+5],
1607 edid->serial_number);
1608 } else if (data[i+3] == EDID_DESCRIPTOR_ALPHANUMERIC_DATA_STRING) {
1609 edid_parse_string(&data[i+5],
1617 find_and_parse_output_edid(struct drm_compositor *ec,
1618 struct drm_output *output,
1619 drmModeConnector *connector)
1621 drmModePropertyBlobPtr edid_blob = NULL;
1622 drmModePropertyPtr property;
1626 for (i = 0; i < connector->count_props && !edid_blob; i++) {
1627 property = drmModeGetProperty(ec->drm.fd, connector->props[i]);
1630 if ((property->flags & DRM_MODE_PROP_BLOB) &&
1631 !strcmp(property->name, "EDID")) {
1632 edid_blob = drmModeGetPropertyBlob(ec->drm.fd,
1633 connector->prop_values[i]);
1635 drmModeFreeProperty(property);
1640 rc = edid_parse(&output->edid,
1644 weston_log("EDID data '%s', '%s', '%s'\n",
1645 output->edid.pnp_id,
1646 output->edid.monitor_name,
1647 output->edid.serial_number);
1648 if (output->edid.pnp_id[0] != '\0')
1649 output->base.make = output->edid.pnp_id;
1650 if (output->edid.monitor_name[0] != '\0')
1651 output->base.model = output->edid.monitor_name;
1652 if (output->edid.serial_number[0] != '\0')
1653 output->base.serial_number = output->edid.serial_number;
1655 drmModeFreePropertyBlob(edid_blob);
1659 create_output_for_connector(struct drm_compositor *ec,
1660 drmModeRes *resources,
1661 drmModeConnector *connector,
1662 int x, int y, struct udev_device *drm_device)
1664 struct drm_output *output;
1665 struct drm_mode *drm_mode, *next, *preferred, *current, *configured;
1666 struct weston_mode *m;
1667 struct drm_configured_output *o = NULL, *temp;
1668 drmModeEncoder *encoder;
1669 drmModeModeInfo crtc_mode;
1673 const char *type_name;
1675 i = find_crtc_for_connector(ec, resources, connector);
1677 weston_log("No usable crtc/encoder pair for connector.\n");
1681 output = malloc(sizeof *output);
1685 memset(output, 0, sizeof *output);
1686 output->base.subpixel = drm_subpixel_to_wayland(connector->subpixel);
1687 output->base.make = "unknown";
1688 output->base.model = "unknown";
1689 output->base.serial_number = "unknown";
1690 wl_list_init(&output->base.mode_list);
1692 if (connector->connector_type < ARRAY_LENGTH(connector_type_names))
1693 type_name = connector_type_names[connector->connector_type];
1695 type_name = "UNKNOWN";
1696 snprintf(name, 32, "%s%d", type_name, connector->connector_type_id);
1697 output->base.name = strdup(name);
1699 output->crtc_id = resources->crtcs[i];
1701 ec->crtc_allocator |= (1 << output->crtc_id);
1702 output->connector_id = connector->connector_id;
1703 ec->connector_allocator |= (1 << output->connector_id);
1705 output->original_crtc = drmModeGetCrtc(ec->drm.fd, output->crtc_id);
1707 /* Get the current mode on the crtc that's currently driving
1708 * this connector. */
1709 encoder = drmModeGetEncoder(ec->drm.fd, connector->encoder_id);
1710 memset(&crtc_mode, 0, sizeof crtc_mode);
1711 if (encoder != NULL) {
1712 crtc = drmModeGetCrtc(ec->drm.fd, encoder->crtc_id);
1713 drmModeFreeEncoder(encoder);
1716 if (crtc->mode_valid)
1717 crtc_mode = crtc->mode;
1718 drmModeFreeCrtc(crtc);
1721 for (i = 0; i < connector->count_modes; i++) {
1722 drm_mode = drm_output_add_mode(output, &connector->modes[i]);
1731 wl_list_for_each(temp, &configured_output_list, link) {
1732 if (strcmp(temp->name, output->base.name) == 0) {
1734 weston_log("%s mode \"%s\" in config\n",
1735 temp->name, temp->mode);
1741 if (o && o->config == OUTPUT_CONFIG_OFF) {
1742 weston_log("Disabling output %s\n", o->name);
1744 drmModeSetCrtc(ec->drm.fd, output->crtc_id,
1745 0, 0, 0, 0, 0, NULL);
1749 wl_list_for_each(drm_mode, &output->base.mode_list, base.link) {
1750 if (o && o->config == OUTPUT_CONFIG_MODE &&
1751 o->width == drm_mode->base.width &&
1752 o->height == drm_mode->base.height)
1753 configured = drm_mode;
1754 if (!memcmp(&crtc_mode, &drm_mode->mode_info, sizeof crtc_mode))
1756 if (drm_mode->base.flags & WL_OUTPUT_MODE_PREFERRED)
1757 preferred = drm_mode;
1760 if (o && o->config == OUTPUT_CONFIG_MODELINE) {
1761 configured = drm_output_add_mode(output, &o->crtc_mode);
1764 current = configured;
1767 if (current == NULL && crtc_mode.clock != 0) {
1768 current = drm_output_add_mode(output, &crtc_mode);
1773 if (o && o->config == OUTPUT_CONFIG_CURRENT)
1774 configured = current;
1776 if (option_current_mode && current)
1777 output->base.current = ¤t->base;
1778 else if (configured)
1779 output->base.current = &configured->base;
1781 output->base.current = &preferred->base;
1783 output->base.current = ¤t->base;
1785 if (output->base.current == NULL) {
1786 weston_log("no available modes for %s\n", output->base.name);
1790 output->base.current->flags |= WL_OUTPUT_MODE_CURRENT;
1792 weston_output_init(&output->base, &ec->base, x, y,
1793 connector->mmWidth, connector->mmHeight,
1794 o ? o->transform : WL_OUTPUT_TRANSFORM_NORMAL);
1796 if (ec->use_pixman) {
1797 if (drm_output_init_pixman(output, ec) < 0) {
1798 weston_log("Failed to init output pixman state\n");
1801 } else if (drm_output_init_egl(output, ec) < 0) {
1802 weston_log("Failed to init output gl state\n");
1806 output->backlight = backlight_init(drm_device,
1807 connector->connector_type);
1808 if (output->backlight) {
1809 output->base.set_backlight = drm_set_backlight;
1810 output->base.backlight_current = drm_get_backlight(output);
1813 wl_list_insert(ec->base.output_list.prev, &output->base.link);
1815 find_and_parse_output_edid(ec, output, connector);
1816 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
1817 output->base.connection_internal = 1;
1819 output->base.origin = output->base.current;
1820 output->base.start_repaint_loop = drm_output_start_repaint_loop;
1821 output->base.repaint = drm_output_repaint;
1822 output->base.destroy = drm_output_destroy;
1823 output->base.assign_planes = drm_assign_planes;
1824 output->base.set_dpms = drm_set_dpms;
1825 output->base.switch_mode = drm_output_switch_mode;
1827 output->base.gamma_size = output->original_crtc->gamma_size;
1828 output->base.set_gamma = drm_output_set_gamma;
1830 weston_plane_init(&output->cursor_plane, 0, 0);
1831 weston_plane_init(&output->fb_plane, 0, 0);
1833 weston_compositor_stack_plane(&ec->base, &output->cursor_plane, NULL);
1834 weston_compositor_stack_plane(&ec->base, &output->fb_plane,
1835 &ec->base.primary_plane);
1837 weston_log("Output %s, (connector %d, crtc %d)\n",
1838 output->base.name, output->connector_id, output->crtc_id);
1839 wl_list_for_each(m, &output->base.mode_list, link)
1840 weston_log_continue(" mode %dx%d@%.1f%s%s%s\n",
1841 m->width, m->height, m->refresh / 1000.0,
1842 m->flags & WL_OUTPUT_MODE_PREFERRED ?
1844 m->flags & WL_OUTPUT_MODE_CURRENT ?
1846 connector->count_modes == 0 ?
1852 weston_output_destroy(&output->base);
1854 wl_list_for_each_safe(drm_mode, next, &output->base.mode_list,
1856 wl_list_remove(&drm_mode->base.link);
1860 drmModeFreeCrtc(output->original_crtc);
1861 ec->crtc_allocator &= ~(1 << output->crtc_id);
1862 ec->connector_allocator &= ~(1 << output->connector_id);
1869 create_sprites(struct drm_compositor *ec)
1871 struct drm_sprite *sprite;
1872 drmModePlaneRes *plane_res;
1873 drmModePlane *plane;
1876 plane_res = drmModeGetPlaneResources(ec->drm.fd);
1878 weston_log("failed to get plane resources: %s\n",
1883 for (i = 0; i < plane_res->count_planes; i++) {
1884 plane = drmModeGetPlane(ec->drm.fd, plane_res->planes[i]);
1888 sprite = malloc(sizeof(*sprite) + ((sizeof(uint32_t)) *
1889 plane->count_formats));
1891 weston_log("%s: out of memory\n",
1897 memset(sprite, 0, sizeof *sprite);
1899 sprite->possible_crtcs = plane->possible_crtcs;
1900 sprite->plane_id = plane->plane_id;
1901 sprite->current = NULL;
1902 sprite->next = NULL;
1903 sprite->compositor = ec;
1904 sprite->count_formats = plane->count_formats;
1905 memcpy(sprite->formats, plane->formats,
1906 plane->count_formats * sizeof(plane->formats[0]));
1907 drmModeFreePlane(plane);
1908 weston_plane_init(&sprite->plane, 0, 0);
1909 weston_compositor_stack_plane(&ec->base, &sprite->plane,
1910 &ec->base.primary_plane);
1912 wl_list_insert(&ec->sprite_list, &sprite->link);
1915 free(plane_res->planes);
1920 destroy_sprites(struct drm_compositor *compositor)
1922 struct drm_sprite *sprite, *next;
1923 struct drm_output *output;
1925 output = container_of(compositor->base.output_list.next,
1926 struct drm_output, base.link);
1928 wl_list_for_each_safe(sprite, next, &compositor->sprite_list, link) {
1929 drmModeSetPlane(compositor->drm.fd,
1931 output->crtc_id, 0, 0,
1932 0, 0, 0, 0, 0, 0, 0, 0);
1933 drm_output_release_fb(output, sprite->current);
1934 drm_output_release_fb(output, sprite->next);
1935 weston_plane_release(&sprite->plane);
1941 create_outputs(struct drm_compositor *ec, uint32_t option_connector,
1942 struct udev_device *drm_device)
1944 drmModeConnector *connector;
1945 drmModeRes *resources;
1949 resources = drmModeGetResources(ec->drm.fd);
1951 weston_log("drmModeGetResources failed\n");
1955 ec->crtcs = calloc(resources->count_crtcs, sizeof(uint32_t));
1957 drmModeFreeResources(resources);
1961 ec->min_width = resources->min_width;
1962 ec->max_width = resources->max_width;
1963 ec->min_height = resources->min_height;
1964 ec->max_height = resources->max_height;
1966 ec->num_crtcs = resources->count_crtcs;
1967 memcpy(ec->crtcs, resources->crtcs, sizeof(uint32_t) * ec->num_crtcs);
1969 for (i = 0; i < resources->count_connectors; i++) {
1970 connector = drmModeGetConnector(ec->drm.fd,
1971 resources->connectors[i]);
1972 if (connector == NULL)
1975 if (connector->connection == DRM_MODE_CONNECTED &&
1976 (option_connector == 0 ||
1977 connector->connector_id == option_connector)) {
1978 if (create_output_for_connector(ec, resources,
1981 drmModeFreeConnector(connector);
1985 x += container_of(ec->base.output_list.prev,
1986 struct weston_output,
1990 drmModeFreeConnector(connector);
1993 if (wl_list_empty(&ec->base.output_list)) {
1994 weston_log("No currently active connector found.\n");
1995 drmModeFreeResources(resources);
1999 drmModeFreeResources(resources);
2005 update_outputs(struct drm_compositor *ec, struct udev_device *drm_device)
2007 drmModeConnector *connector;
2008 drmModeRes *resources;
2009 struct drm_output *output, *next;
2011 int x_offset = 0, y_offset = 0;
2012 uint32_t connected = 0, disconnects = 0;
2015 resources = drmModeGetResources(ec->drm.fd);
2017 weston_log("drmModeGetResources failed\n");
2021 /* collect new connects */
2022 for (i = 0; i < resources->count_connectors; i++) {
2023 int connector_id = resources->connectors[i];
2025 connector = drmModeGetConnector(ec->drm.fd, connector_id);
2026 if (connector == NULL)
2029 if (connector->connection != DRM_MODE_CONNECTED) {
2030 drmModeFreeConnector(connector);
2034 connected |= (1 << connector_id);
2036 if (!(ec->connector_allocator & (1 << connector_id))) {
2037 struct weston_output *last =
2038 container_of(ec->base.output_list.prev,
2039 struct weston_output, link);
2041 /* XXX: not yet needed, we die with 0 outputs */
2042 if (!wl_list_empty(&ec->base.output_list))
2043 x = last->x + last->width;
2047 create_output_for_connector(ec, resources,
2050 weston_log("connector %d connected\n", connector_id);
2053 drmModeFreeConnector(connector);
2055 drmModeFreeResources(resources);
2057 disconnects = ec->connector_allocator & ~connected;
2059 wl_list_for_each_safe(output, next, &ec->base.output_list,
2061 if (x_offset != 0 || y_offset != 0) {
2062 weston_output_move(&output->base,
2063 output->base.x - x_offset,
2064 output->base.y - y_offset);
2067 if (disconnects & (1 << output->connector_id)) {
2068 disconnects &= ~(1 << output->connector_id);
2069 weston_log("connector %d disconnected\n",
2070 output->connector_id);
2071 x_offset += output->base.width;
2072 drm_output_destroy(&output->base);
2077 /* FIXME: handle zero outputs, without terminating */
2078 if (ec->connector_allocator == 0)
2079 wl_display_terminate(ec->base.wl_display);
2083 udev_event_is_hotplug(struct drm_compositor *ec, struct udev_device *device)
2088 sysnum = udev_device_get_sysnum(device);
2089 if (!sysnum || atoi(sysnum) != ec->drm.id)
2092 val = udev_device_get_property_value(device, "HOTPLUG");
2096 return strcmp(val, "1") == 0;
2100 udev_drm_event(int fd, uint32_t mask, void *data)
2102 struct drm_compositor *ec = data;
2103 struct udev_device *event;
2105 event = udev_monitor_receive_device(ec->udev_monitor);
2107 if (udev_event_is_hotplug(ec, event))
2108 update_outputs(ec, event);
2110 udev_device_unref(event);
2116 drm_restore(struct weston_compositor *ec)
2118 struct drm_compositor *d = (struct drm_compositor *) ec;
2120 if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0)
2121 weston_log("failed to drop master: %m\n");
2126 drm_free_configured_output(struct drm_configured_output *output)
2134 drm_destroy(struct weston_compositor *ec)
2136 struct drm_compositor *d = (struct drm_compositor *) ec;
2137 struct udev_seat *seat, *next;
2138 struct drm_configured_output *o, *n;
2140 wl_list_for_each_safe(seat, next, &ec->seat_list, base.link)
2141 udev_seat_destroy(seat);
2142 wl_list_for_each_safe(o, n, &configured_output_list, link)
2143 drm_free_configured_output(o);
2145 wl_event_source_remove(d->udev_drm_source);
2146 wl_event_source_remove(d->drm_source);
2150 weston_compositor_shutdown(ec);
2152 ec->renderer->destroy(ec);
2155 gbm_device_destroy(d->gbm);
2157 if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0)
2158 weston_log("failed to drop master: %m\n");
2159 tty_destroy(d->tty);
2165 drm_compositor_set_modes(struct drm_compositor *compositor)
2167 struct drm_output *output;
2168 struct drm_mode *drm_mode;
2171 wl_list_for_each(output, &compositor->base.output_list, base.link) {
2172 if (!output->current) {
2173 /* If something that would cause the output to
2174 * switch mode happened while in another vt, we
2175 * might not have a current drm_fb. In that case,
2176 * schedule a repaint and let drm_output_repaint
2177 * handle setting the mode. */
2178 weston_output_schedule_repaint(&output->base);
2182 drm_mode = (struct drm_mode *) output->base.current;
2183 ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id,
2184 output->current->fb_id, 0, 0,
2185 &output->connector_id, 1,
2186 &drm_mode->mode_info);
2189 "failed to set mode %dx%d for output at %d,%d: %m\n",
2190 drm_mode->base.width, drm_mode->base.height,
2191 output->base.x, output->base.y);
2197 vt_func(struct weston_compositor *compositor, int event)
2199 struct drm_compositor *ec = (struct drm_compositor *) compositor;
2200 struct udev_seat *seat;
2201 struct drm_sprite *sprite;
2202 struct drm_output *output;
2206 weston_log("entering VT\n");
2207 compositor->focus = 1;
2208 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 1)) {
2209 weston_log("failed to set master: %m\n");
2210 wl_display_terminate(compositor->wl_display);
2212 compositor->state = ec->prev_state;
2213 drm_compositor_set_modes(ec);
2214 weston_compositor_damage_all(compositor);
2215 wl_list_for_each(seat, &compositor->seat_list, base.link)
2216 udev_seat_enable(seat, ec->udev);
2219 weston_log("leaving VT\n");
2220 wl_list_for_each(seat, &compositor->seat_list, base.link)
2221 udev_seat_disable(seat);
2223 compositor->focus = 0;
2224 ec->prev_state = compositor->state;
2225 weston_compositor_offscreen(compositor);
2227 /* If we have a repaint scheduled (either from a
2228 * pending pageflip or the idle handler), make sure we
2229 * cancel that so we don't try to pageflip when we're
2230 * vt switched away. The OFFSCREEN state will prevent
2231 * further attemps at repainting. When we switch
2232 * back, we schedule a repaint, which will process
2233 * pending frame callbacks. */
2235 wl_list_for_each(output, &ec->base.output_list, base.link) {
2236 output->base.repaint_needed = 0;
2237 drmModeSetCursor(ec->drm.fd, output->crtc_id, 0, 0, 0);
2240 output = container_of(ec->base.output_list.next,
2241 struct drm_output, base.link);
2243 wl_list_for_each(sprite, &ec->sprite_list, link)
2244 drmModeSetPlane(ec->drm.fd,
2246 output->crtc_id, 0, 0,
2247 0, 0, 0, 0, 0, 0, 0, 0);
2249 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0)
2250 weston_log("failed to drop master: %m\n");
2257 switch_vt_binding(struct weston_seat *seat, uint32_t time, uint32_t key, void *data)
2259 struct drm_compositor *ec = data;
2261 tty_activate_vt(ec->tty, key - KEY_F1 + 1);
2266 * Some systems may have multiple DRM devices attached to a single seat. This
2267 * function loops over all devices and tries to find a PCI device with the
2268 * boot_vga sysfs attribute set to 1.
2269 * If no such device is found, the first DRM device reported by udev is used.
2271 static struct udev_device*
2272 find_primary_gpu(struct drm_compositor *ec, const char *seat)
2274 struct udev_enumerate *e;
2275 struct udev_list_entry *entry;
2276 const char *path, *device_seat, *id;
2277 struct udev_device *device, *drm_device, *pci;
2279 e = udev_enumerate_new(ec->udev);
2280 udev_enumerate_add_match_subsystem(e, "drm");
2281 udev_enumerate_add_match_sysname(e, "card[0-9]*");
2283 udev_enumerate_scan_devices(e);
2285 udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
2286 path = udev_list_entry_get_name(entry);
2287 device = udev_device_new_from_syspath(ec->udev, path);
2290 device_seat = udev_device_get_property_value(device, "ID_SEAT");
2292 device_seat = default_seat;
2293 if (strcmp(device_seat, seat)) {
2294 udev_device_unref(device);
2298 pci = udev_device_get_parent_with_subsystem_devtype(device,
2301 id = udev_device_get_sysattr_value(pci, "boot_vga");
2302 if (id && !strcmp(id, "1")) {
2304 udev_device_unref(drm_device);
2305 drm_device = device;
2311 drm_device = device;
2313 udev_device_unref(device);
2316 udev_enumerate_unref(e);
2321 planes_binding(struct weston_seat *seat, uint32_t time, uint32_t key, void *data)
2323 struct drm_compositor *c = data;
2327 c->cursors_are_broken ^= 1;
2330 c->sprites_are_broken ^= 1;
2333 c->sprites_hidden ^= 1;
2340 static struct weston_compositor *
2341 drm_compositor_create(struct wl_display *display,
2342 int connector, const char *seat, int tty, int pixman,
2343 int *argc, char *argv[], const char *config_file)
2345 struct drm_compositor *ec;
2346 struct udev_device *drm_device;
2347 struct wl_event_loop *loop;
2348 struct udev_seat *udev_seat, *next;
2352 weston_log("initializing drm backend\n");
2354 ec = malloc(sizeof *ec);
2357 memset(ec, 0, sizeof *ec);
2359 /* KMS support for sprites is not complete yet, so disable the
2360 * functionality for now. */
2361 ec->sprites_are_broken = 1;
2363 ec->use_pixman = pixman;
2365 if (weston_compositor_init(&ec->base, display, argc, argv,
2367 weston_log("%s failed\n", __func__);
2371 /* Check if we run drm-backend using weston-launch */
2372 if (ec->base.launcher_sock == -1 && geteuid() != 0) {
2373 weston_log("fatal: drm backend should be run "
2374 "using weston-launch binary or as root\n");
2375 goto err_compositor;
2378 ec->udev = udev_new();
2379 if (ec->udev == NULL) {
2380 weston_log("failed to initialize udev context\n");
2381 goto err_compositor;
2384 ec->base.wl_display = display;
2385 ec->tty = tty_create(&ec->base, vt_func, tty);
2387 weston_log("failed to initialize tty\n");
2391 drm_device = find_primary_gpu(ec, seat);
2392 if (drm_device == NULL) {
2393 weston_log("no drm device found\n");
2396 path = udev_device_get_syspath(drm_device);
2398 if (init_drm(ec, drm_device) < 0) {
2399 weston_log("failed to initialize kms\n");
2403 if (ec->use_pixman) {
2404 if (init_pixman(ec) < 0) {
2405 weston_log("failed to initialize pixman renderer\n");
2409 if (init_egl(ec) < 0) {
2410 weston_log("failed to initialize egl\n");
2415 ec->base.destroy = drm_destroy;
2416 ec->base.restore = drm_restore;
2420 ec->prev_state = WESTON_COMPOSITOR_ACTIVE;
2422 for (key = KEY_F1; key < KEY_F9; key++)
2423 weston_compositor_add_key_binding(&ec->base, key,
2424 MODIFIER_CTRL | MODIFIER_ALT,
2425 switch_vt_binding, ec);
2427 wl_list_init(&ec->sprite_list);
2430 if (create_outputs(ec, connector, drm_device) < 0) {
2431 weston_log("failed to create output for %s\n", path);
2437 if (udev_seat_create(&ec->base, ec->udev, seat) == NULL) {
2438 weston_log("failed to create input devices\n");
2442 loop = wl_display_get_event_loop(ec->base.wl_display);
2444 wl_event_loop_add_fd(loop, ec->drm.fd,
2445 WL_EVENT_READABLE, on_drm_input, ec);
2447 ec->udev_monitor = udev_monitor_new_from_netlink(ec->udev, "udev");
2448 if (ec->udev_monitor == NULL) {
2449 weston_log("failed to intialize udev monitor\n");
2450 goto err_drm_source;
2452 udev_monitor_filter_add_match_subsystem_devtype(ec->udev_monitor,
2454 ec->udev_drm_source =
2455 wl_event_loop_add_fd(loop,
2456 udev_monitor_get_fd(ec->udev_monitor),
2457 WL_EVENT_READABLE, udev_drm_event, ec);
2459 if (udev_monitor_enable_receiving(ec->udev_monitor) < 0) {
2460 weston_log("failed to enable udev-monitor receiving\n");
2461 goto err_udev_monitor;
2464 udev_device_unref(drm_device);
2466 weston_compositor_add_debug_binding(&ec->base, KEY_O,
2467 planes_binding, ec);
2468 weston_compositor_add_debug_binding(&ec->base, KEY_C,
2469 planes_binding, ec);
2470 weston_compositor_add_debug_binding(&ec->base, KEY_V,
2471 planes_binding, ec);
2476 wl_event_source_remove(ec->udev_drm_source);
2477 udev_monitor_unref(ec->udev_monitor);
2479 wl_event_source_remove(ec->drm_source);
2480 wl_list_for_each_safe(udev_seat, next, &ec->base.seat_list, base.link)
2481 udev_seat_destroy(udev_seat);
2483 ec->base.renderer->destroy(&ec->base);
2484 gbm_device_destroy(ec->gbm);
2485 destroy_sprites(ec);
2487 udev_device_unref(drm_device);
2489 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0)
2490 weston_log("failed to drop master: %m\n");
2491 tty_destroy(ec->tty);
2493 udev_unref(ec->udev);
2495 weston_compositor_shutdown(&ec->base);
2502 set_sync_flags(drmModeModeInfo *mode, char *hsync, char *vsync)
2506 if (strcmp(hsync, "+hsync") == 0)
2507 mode->flags |= DRM_MODE_FLAG_PHSYNC;
2508 else if (strcmp(hsync, "-hsync") == 0)
2509 mode->flags |= DRM_MODE_FLAG_NHSYNC;
2513 if (strcmp(vsync, "+vsync") == 0)
2514 mode->flags |= DRM_MODE_FLAG_PVSYNC;
2515 else if (strcmp(vsync, "-vsync") == 0)
2516 mode->flags |= DRM_MODE_FLAG_NVSYNC;
2524 check_for_modeline(struct drm_configured_output *output)
2526 drmModeModeInfo mode;
2532 mode.type = DRM_MODE_TYPE_USERDEF;
2537 if (sscanf(output_mode, "%f %hd %hd %hd %hd %hd %hd %hd %hd %s %s",
2538 &fclock, &mode.hdisplay,
2540 &mode.hsync_end, &mode.htotal,
2543 &mode.vsync_end, &mode.vtotal,
2544 hsync, vsync) == 11) {
2545 if (set_sync_flags(&mode, hsync, vsync))
2548 sprintf(mode_name, "%dx%d", mode.hdisplay, mode.vdisplay);
2549 strcpy(mode.name, mode_name);
2551 mode.clock = fclock * 1000;
2555 output->crtc_mode = mode;
2561 drm_output_set_transform(struct drm_configured_output *output)
2563 if (!output_transform) {
2564 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2568 if (!strcmp(output_transform, "normal"))
2569 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2570 else if (!strcmp(output_transform, "90"))
2571 output->transform = WL_OUTPUT_TRANSFORM_90;
2572 else if (!strcmp(output_transform, "180"))
2573 output->transform = WL_OUTPUT_TRANSFORM_180;
2574 else if (!strcmp(output_transform, "270"))
2575 output->transform = WL_OUTPUT_TRANSFORM_270;
2576 else if (!strcmp(output_transform, "flipped"))
2577 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED;
2578 else if (!strcmp(output_transform, "flipped-90"))
2579 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
2580 else if (!strcmp(output_transform, "flipped-180"))
2581 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
2582 else if (!strcmp(output_transform, "flipped-270"))
2583 output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
2585 weston_log("Invalid transform \"%s\" for output %s\n",
2586 output_transform, output_name);
2587 output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
2590 free(output_transform);
2591 output_transform = NULL;
2595 output_section_done(void *data)
2597 struct drm_configured_output *output;
2599 output = malloc(sizeof *output);
2601 if (!output || !output_name || (output_name[0] == 'X') ||
2602 (!output_mode && !output_transform)) {
2605 free(output_transform);
2609 output_transform = NULL;
2613 output->config = OUTPUT_CONFIG_INVALID;
2614 output->name = output_name;
2615 output->mode = output_mode;
2618 if (strcmp(output_mode, "off") == 0)
2619 output->config = OUTPUT_CONFIG_OFF;
2620 else if (strcmp(output_mode, "preferred") == 0)
2621 output->config = OUTPUT_CONFIG_PREFERRED;
2622 else if (strcmp(output_mode, "current") == 0)
2623 output->config = OUTPUT_CONFIG_CURRENT;
2624 else if (sscanf(output_mode, "%dx%d",
2625 &output->width, &output->height) == 2)
2626 output->config = OUTPUT_CONFIG_MODE;
2627 else if (check_for_modeline(output) == 0)
2628 output->config = OUTPUT_CONFIG_MODELINE;
2630 if (output->config == OUTPUT_CONFIG_INVALID)
2631 weston_log("Invalid mode \"%s\" for output %s\n",
2632 output_mode, output_name);
2636 drm_output_set_transform(output);
2638 wl_list_insert(&configured_output_list, &output->link);
2640 if (output_transform)
2641 free(output_transform);
2642 output_transform = NULL;
2645 WL_EXPORT struct weston_compositor *
2646 backend_init(struct wl_display *display, int *argc, char *argv[],
2647 const char *config_file)
2649 int connector = 0, tty = 0, use_pixman = 0;
2650 const char *seat = default_seat;
2652 const struct weston_option drm_options[] = {
2653 { WESTON_OPTION_INTEGER, "connector", 0, &connector },
2654 { WESTON_OPTION_STRING, "seat", 0, &seat },
2655 { WESTON_OPTION_INTEGER, "tty", 0, &tty },
2656 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &option_current_mode },
2657 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
2660 parse_options(drm_options, ARRAY_LENGTH(drm_options), argc, argv);
2662 wl_list_init(&configured_output_list);
2664 const struct config_key drm_config_keys[] = {
2665 { "name", CONFIG_KEY_STRING, &output_name },
2666 { "mode", CONFIG_KEY_STRING, &output_mode },
2667 { "transform", CONFIG_KEY_STRING, &output_transform },
2670 const struct config_section config_section[] = {
2671 { "output", drm_config_keys,
2672 ARRAY_LENGTH(drm_config_keys), output_section_done },
2675 parse_config_file(config_file, config_section,
2676 ARRAY_LENGTH(config_section), NULL);
2678 return drm_compositor_create(display, connector, seat, tty, use_pixman,
2679 argc, argv, config_file);