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.
33 #include <linux/input.h>
39 #include <xf86drmMode.h>
40 #include <drm_fourcc.h>
43 #include <libbacklight.h>
46 #include "compositor.h"
47 #include "gl-renderer.h"
48 #include "pixman-renderer.h"
49 #include "udev-seat.h"
50 #include "launcher-util.h"
52 #ifndef DRM_CAP_TIMESTAMP_MONOTONIC
53 #define DRM_CAP_TIMESTAMP_MONOTONIC 0x6
56 static int option_current_mode = 0;
59 OUTPUT_CONFIG_INVALID = 0,
61 OUTPUT_CONFIG_PREFERRED,
62 OUTPUT_CONFIG_CURRENT,
64 OUTPUT_CONFIG_MODELINE
67 struct drm_compositor {
68 struct weston_compositor base;
71 struct wl_event_source *drm_source;
73 struct udev_monitor *udev_monitor;
74 struct wl_event_source *udev_drm_source;
80 struct gbm_device *gbm;
83 uint32_t crtc_allocator;
84 uint32_t connector_allocator;
87 /* we need these parameters in order to not fail drmModeAddFB2()
88 * due to out of bounds dimensions, and then mistakenly set
91 uint32_t min_width, max_width;
92 uint32_t min_height, max_height;
95 struct wl_list sprite_list;
96 int sprites_are_broken;
99 int cursors_are_broken;
106 struct udev_input input;
110 struct weston_mode base;
111 drmModeModeInfo mode_info;
117 struct drm_output *output;
118 uint32_t fb_id, stride, handle, size;
120 int is_client_buffer;
121 struct weston_buffer_reference buffer_ref;
123 /* Used by gbm fbs */
126 /* Used by dumb fbs */
132 char monitor_name[13];
134 char serial_number[13];
138 struct weston_output base;
142 uint32_t connector_id;
143 drmModeCrtcPtr original_crtc;
144 struct drm_edid edid;
145 drmModePropertyPtr dpms_prop;
148 int page_flip_pending;
150 struct gbm_surface *surface;
151 struct gbm_bo *cursor_bo[2];
152 struct weston_plane cursor_plane;
153 struct weston_plane fb_plane;
154 struct weston_surface *cursor_surface;
156 struct drm_fb *current, *next;
157 struct backlight *backlight;
159 struct drm_fb *dumb[2];
160 pixman_image_t *image[2];
162 pixman_region32_t previous_damage;
166 * An output has a primary display plane plus zero or more sprites for
167 * blending display contents.
172 struct weston_plane plane;
174 struct drm_fb *current, *next;
175 struct drm_output *output;
176 struct drm_compositor *compositor;
178 uint32_t possible_crtcs;
180 uint32_t count_formats;
182 int32_t src_x, src_y;
183 uint32_t src_w, src_h;
184 uint32_t dest_x, dest_y;
185 uint32_t dest_w, dest_h;
190 static const char default_seat[] = "seat0";
193 drm_output_set_cursor(struct drm_output *output);
196 drm_sprite_crtc_supported(struct weston_output *output_base, uint32_t supported)
198 struct weston_compositor *ec = output_base->compositor;
199 struct drm_compositor *c =(struct drm_compositor *) ec;
200 struct drm_output *output = (struct drm_output *) output_base;
203 for (crtc = 0; crtc < c->num_crtcs; crtc++) {
204 if (c->crtcs[crtc] != output->crtc_id)
207 if (supported & (1 << crtc))
215 drm_fb_destroy_callback(struct gbm_bo *bo, void *data)
217 struct drm_fb *fb = data;
218 struct gbm_device *gbm = gbm_bo_get_device(bo);
221 drmModeRmFB(gbm_device_get_fd(gbm), fb->fb_id);
223 weston_buffer_reference(&fb->buffer_ref, NULL);
228 static struct drm_fb *
229 drm_fb_create_dumb(struct drm_compositor *ec, unsigned width, unsigned height)
234 struct drm_mode_create_dumb create_arg;
235 struct drm_mode_destroy_dumb destroy_arg;
236 struct drm_mode_map_dumb map_arg;
238 fb = calloc(1, sizeof *fb);
243 create_arg.width = width;
244 create_arg.height = height;
246 ret = drmIoctl(ec->drm.fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg);
250 fb->handle = create_arg.handle;
251 fb->stride = create_arg.pitch;
252 fb->size = create_arg.size;
255 ret = drmModeAddFB(ec->drm.fd, width, height, 24, 32,
256 fb->stride, fb->handle, &fb->fb_id);
260 memset(&map_arg, 0, sizeof(map_arg));
261 map_arg.handle = fb->handle;
262 ret = drmIoctl(fb->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
266 fb->map = mmap(0, fb->size, PROT_WRITE,
267 MAP_SHARED, ec->drm.fd, map_arg.offset);
268 if (fb->map == MAP_FAILED)
274 drmModeRmFB(ec->drm.fd, fb->fb_id);
276 memset(&destroy_arg, 0, sizeof(destroy_arg));
277 destroy_arg.handle = create_arg.handle;
278 drmIoctl(ec->drm.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
285 drm_fb_destroy_dumb(struct drm_fb *fb)
287 struct drm_mode_destroy_dumb destroy_arg;
293 drmModeRmFB(fb->fd, fb->fb_id);
295 weston_buffer_reference(&fb->buffer_ref, NULL);
297 munmap(fb->map, fb->size);
299 memset(&destroy_arg, 0, sizeof(destroy_arg));
300 destroy_arg.handle = fb->handle;
301 drmIoctl(fb->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
306 static struct drm_fb *
307 drm_fb_get_from_bo(struct gbm_bo *bo,
308 struct drm_compositor *compositor, uint32_t format)
310 struct drm_fb *fb = gbm_bo_get_user_data(bo);
311 uint32_t width, height;
312 uint32_t handles[4], pitches[4], offsets[4];
318 fb = calloc(1, sizeof *fb);
324 width = gbm_bo_get_width(bo);
325 height = gbm_bo_get_height(bo);
326 fb->stride = gbm_bo_get_stride(bo);
327 fb->handle = gbm_bo_get_handle(bo).u32;
328 fb->size = fb->stride * height;
329 fb->fd = compositor->drm.fd;
331 if (compositor->min_width > width || width > compositor->max_width ||
332 compositor->min_height > height ||
333 height > compositor->max_height) {
334 weston_log("bo geometry out of bounds\n");
340 if (format && !compositor->no_addfb2) {
341 handles[0] = fb->handle;
342 pitches[0] = fb->stride;
345 ret = drmModeAddFB2(compositor->drm.fd, width, height,
346 format, handles, pitches, offsets,
349 weston_log("addfb2 failed: %m\n");
350 compositor->no_addfb2 = 1;
351 compositor->sprites_are_broken = 1;
356 ret = drmModeAddFB(compositor->drm.fd, width, height, 24, 32,
357 fb->stride, fb->handle, &fb->fb_id);
360 weston_log("failed to create kms fb: %m\n");
364 gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback);
374 drm_fb_set_buffer(struct drm_fb *fb, struct weston_buffer *buffer)
376 assert(fb->buffer_ref.buffer == NULL);
378 fb->is_client_buffer = 1;
380 weston_buffer_reference(&fb->buffer_ref, buffer);
384 drm_output_release_fb(struct drm_output *output, struct drm_fb *fb)
390 (fb != output->dumb[0] && fb != output->dumb[1])) {
391 drm_fb_destroy_dumb(fb);
393 if (fb->is_client_buffer)
394 gbm_bo_destroy(fb->bo);
396 gbm_surface_release_buffer(output->surface,
397 output->current->bo);
402 drm_output_check_scanout_format(struct drm_output *output,
403 struct weston_surface *es, struct gbm_bo *bo)
408 format = gbm_bo_get_format(bo);
411 case GBM_FORMAT_XRGB8888:
413 case GBM_FORMAT_ARGB8888:
414 /* We can only scanout an ARGB buffer if the surface's
415 * opaque region covers the whole output */
416 pixman_region32_init(&r);
417 pixman_region32_subtract(&r, &output->base.region,
420 if (!pixman_region32_not_empty(&r))
421 format = GBM_FORMAT_XRGB8888;
425 pixman_region32_fini(&r);
433 static struct weston_plane *
434 drm_output_prepare_scanout_surface(struct weston_output *_output,
435 struct weston_surface *es)
437 struct drm_output *output = (struct drm_output *) _output;
438 struct drm_compositor *c =
439 (struct drm_compositor *) output->base.compositor;
440 struct weston_buffer *buffer = es->buffer_ref.buffer;
444 if (es->geometry.x != output->base.x ||
445 es->geometry.y != output->base.y ||
446 buffer == NULL || c->gbm == NULL ||
447 buffer->width != output->base.current->width ||
448 buffer->height != output->base.current->height ||
449 output->base.transform != es->buffer_transform ||
450 es->transform.enabled)
453 bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
454 buffer, GBM_BO_USE_SCANOUT);
456 /* Unable to use the buffer for scanout */
460 format = drm_output_check_scanout_format(output, es, bo);
466 output->next = drm_fb_get_from_bo(bo, c, format);
472 drm_fb_set_buffer(output->next, buffer);
474 return &output->fb_plane;
478 drm_output_render_gl(struct drm_output *output, pixman_region32_t *damage)
480 struct drm_compositor *c =
481 (struct drm_compositor *) output->base.compositor;
484 c->base.renderer->repaint_output(&output->base, damage);
486 bo = gbm_surface_lock_front_buffer(output->surface);
488 weston_log("failed to lock front buffer: %m\n");
492 output->next = drm_fb_get_from_bo(bo, c, GBM_FORMAT_XRGB8888);
494 weston_log("failed to get drm_fb for bo\n");
495 gbm_surface_release_buffer(output->surface, bo);
501 drm_output_render_pixman(struct drm_output *output, pixman_region32_t *damage)
503 struct weston_compositor *ec = output->base.compositor;
504 pixman_region32_t total_damage, previous_damage;
506 pixman_region32_init(&total_damage);
507 pixman_region32_init(&previous_damage);
509 pixman_region32_copy(&previous_damage, damage);
511 pixman_region32_union(&total_damage, damage, &output->previous_damage);
512 pixman_region32_copy(&output->previous_damage, &previous_damage);
514 output->current_image ^= 1;
516 output->next = output->dumb[output->current_image];
517 pixman_renderer_output_set_buffer(&output->base,
518 output->image[output->current_image]);
520 ec->renderer->repaint_output(&output->base, &total_damage);
522 pixman_region32_fini(&total_damage);
523 pixman_region32_fini(&previous_damage);
527 drm_output_render(struct drm_output *output, pixman_region32_t *damage)
529 struct drm_compositor *c =
530 (struct drm_compositor *) output->base.compositor;
533 drm_output_render_pixman(output, damage);
535 drm_output_render_gl(output, damage);
537 pixman_region32_subtract(&c->base.primary_plane.damage,
538 &c->base.primary_plane.damage, damage);
542 drm_output_set_gamma(struct weston_output *output_base,
543 uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b)
546 struct drm_output *output = (struct drm_output *) output_base;
547 struct drm_compositor *compositor = (struct drm_compositor *) output->base.compositor;
550 if (output_base->gamma_size != size)
552 if (!output->original_crtc)
555 rc = drmModeCrtcSetGamma(compositor->drm.fd,
559 weston_log("set gamma failed: %m\n");
563 drm_output_repaint(struct weston_output *output_base,
564 pixman_region32_t *damage)
566 struct drm_output *output = (struct drm_output *) output_base;
567 struct drm_compositor *compositor =
568 (struct drm_compositor *) output->base.compositor;
569 struct drm_sprite *s;
570 struct drm_mode *mode;
574 drm_output_render(output, damage);
578 mode = container_of(output->base.current, struct drm_mode, base);
579 if (!output->current) {
580 ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id,
581 output->next->fb_id, 0, 0,
582 &output->connector_id, 1,
585 weston_log("set mode failed: %m\n");
588 output_base->set_dpms(output_base, WESTON_DPMS_ON);
591 if (drmModePageFlip(compositor->drm.fd, output->crtc_id,
593 DRM_MODE_PAGE_FLIP_EVENT, output) < 0) {
594 weston_log("queueing pageflip failed: %m\n");
598 output->page_flip_pending = 1;
600 drm_output_set_cursor(output);
603 * Now, update all the sprite surfaces
605 wl_list_for_each(s, &compositor->sprite_list, link) {
606 uint32_t flags = 0, fb_id = 0;
608 .request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT,
609 .request.sequence = 1,
612 if ((!s->current && !s->next) ||
613 !drm_sprite_crtc_supported(output_base, s->possible_crtcs))
616 if (s->next && !compositor->sprites_hidden)
617 fb_id = s->next->fb_id;
619 ret = drmModeSetPlane(compositor->drm.fd, s->plane_id,
620 output->crtc_id, fb_id, flags,
621 s->dest_x, s->dest_y,
622 s->dest_w, s->dest_h,
626 weston_log("setplane failed: %d: %s\n",
627 ret, strerror(errno));
629 if (output->pipe > 0)
630 vbl.request.type |= DRM_VBLANK_SECONDARY;
633 * Queue a vblank signal so we know when the surface
634 * becomes active on the display or has been replaced.
636 vbl.request.signal = (unsigned long)s;
637 ret = drmWaitVBlank(compositor->drm.fd, &vbl);
639 weston_log("vblank event request failed: %d: %s\n",
640 ret, strerror(errno));
644 output->vblank_pending = 1;
651 drm_output_start_repaint_loop(struct weston_output *output_base)
653 struct drm_output *output = (struct drm_output *) output_base;
654 struct drm_compositor *compositor = (struct drm_compositor *)
655 output_base->compositor;
660 if (!output->current) {
661 /* We can't page flip if there's no mode set */
664 clock_gettime(compositor->clock, &ts);
665 msec = ts.tv_sec * 1000 + ts.tv_nsec / 1000000;
666 weston_output_finish_frame(output_base, msec);
670 fb_id = output->current->fb_id;
672 if (drmModePageFlip(compositor->drm.fd, output->crtc_id, fb_id,
673 DRM_MODE_PAGE_FLIP_EVENT, output) < 0) {
674 weston_log("queueing pageflip failed: %m\n");
680 vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec,
683 struct drm_sprite *s = (struct drm_sprite *)data;
684 struct drm_output *output = s->output;
687 output->vblank_pending = 0;
689 drm_output_release_fb(output, s->current);
690 s->current = s->next;
693 if (!output->page_flip_pending) {
694 msecs = sec * 1000 + usec / 1000;
695 weston_output_finish_frame(&output->base, msecs);
700 page_flip_handler(int fd, unsigned int frame,
701 unsigned int sec, unsigned int usec, void *data)
703 struct drm_output *output = (struct drm_output *) data;
706 /* We don't set page_flip_pending on start_repaint_loop, in that case
707 * we just want to page flip to the current buffer to get an accurate
709 if (output->page_flip_pending) {
710 drm_output_release_fb(output, output->current);
711 output->current = output->next;
715 output->page_flip_pending = 0;
717 if (!output->vblank_pending) {
718 msecs = sec * 1000 + usec / 1000;
719 weston_output_finish_frame(&output->base, msecs);
724 drm_output_check_sprite_format(struct drm_sprite *s,
725 struct weston_surface *es, struct gbm_bo *bo)
729 format = gbm_bo_get_format(bo);
731 if (format == GBM_FORMAT_ARGB8888) {
734 pixman_region32_init_rect(&r, 0, 0,
736 es->geometry.height);
737 pixman_region32_subtract(&r, &r, &es->opaque);
739 if (!pixman_region32_not_empty(&r))
740 format = GBM_FORMAT_XRGB8888;
742 pixman_region32_fini(&r);
745 for (i = 0; i < s->count_formats; i++)
746 if (s->formats[i] == format)
753 drm_surface_transform_supported(struct weston_surface *es)
755 return !es->transform.enabled ||
756 (es->transform.matrix.type < WESTON_MATRIX_TRANSFORM_ROTATE);
759 static struct weston_plane *
760 drm_output_prepare_overlay_surface(struct weston_output *output_base,
761 struct weston_surface *es)
763 struct weston_compositor *ec = output_base->compositor;
764 struct drm_compositor *c =(struct drm_compositor *) ec;
765 struct drm_sprite *s;
768 pixman_region32_t dest_rect, src_rect;
769 pixman_box32_t *box, tbox;
771 wl_fixed_t sx1, sy1, sx2, sy2;
776 if (es->buffer_transform != output_base->transform)
779 if (es->buffer_scale != output_base->scale)
782 if (c->sprites_are_broken)
785 if (es->output_mask != (1u << output_base->id))
788 if (es->buffer_ref.buffer == NULL)
791 if (es->alpha != 1.0f)
794 if (wl_shm_buffer_get(es->buffer_ref.buffer->resource))
797 if (!drm_surface_transform_supported(es))
800 wl_list_for_each(s, &c->sprite_list, link) {
801 if (!drm_sprite_crtc_supported(output_base, s->possible_crtcs))
810 /* No sprites available */
814 bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER,
815 es->buffer_ref.buffer, GBM_BO_USE_SCANOUT);
819 format = drm_output_check_sprite_format(s, es, bo);
825 s->next = drm_fb_get_from_bo(bo, c, format);
831 drm_fb_set_buffer(s->next, es->buffer_ref.buffer);
833 box = pixman_region32_extents(&es->transform.boundingbox);
834 s->plane.x = box->x1;
835 s->plane.y = box->y1;
838 * Calculate the source & dest rects properly based on actual
839 * position (note the caller has called weston_surface_update_transform()
842 pixman_region32_init(&dest_rect);
843 pixman_region32_intersect(&dest_rect, &es->transform.boundingbox,
844 &output_base->region);
845 pixman_region32_translate(&dest_rect, -output_base->x, -output_base->y);
846 box = pixman_region32_extents(&dest_rect);
847 tbox = weston_transformed_rect(output_base->width,
849 output_base->transform,
854 s->dest_w = tbox.x2 - tbox.x1;
855 s->dest_h = tbox.y2 - tbox.y1;
856 pixman_region32_fini(&dest_rect);
858 pixman_region32_init(&src_rect);
859 pixman_region32_intersect(&src_rect, &es->transform.boundingbox,
860 &output_base->region);
861 box = pixman_region32_extents(&src_rect);
863 weston_surface_from_global_fixed(es,
864 wl_fixed_from_int(box->x1),
865 wl_fixed_from_int(box->y1),
867 weston_surface_from_global_fixed(es,
868 wl_fixed_from_int(box->x2),
869 wl_fixed_from_int(box->y2),
876 if (sx2 > wl_fixed_from_int(es->geometry.width))
877 sx2 = wl_fixed_from_int(es->geometry.width);
878 if (sy2 > wl_fixed_from_int(es->geometry.height))
879 sy2 = wl_fixed_from_int(es->geometry.height);
886 tbox = weston_transformed_rect(wl_fixed_from_int(es->geometry.width),
887 wl_fixed_from_int(es->geometry.height),
888 es->buffer_transform, es->buffer_scale, tbox);
890 s->src_x = tbox.x1 << 8;
891 s->src_y = tbox.y1 << 8;
892 s->src_w = (tbox.x2 - tbox.x1) << 8;
893 s->src_h = (tbox.y2 - tbox.y1) << 8;
894 pixman_region32_fini(&src_rect);
899 static struct weston_plane *
900 drm_output_prepare_cursor_surface(struct weston_output *output_base,
901 struct weston_surface *es)
903 struct drm_compositor *c =
904 (struct drm_compositor *) output_base->compositor;
905 struct drm_output *output = (struct drm_output *) output_base;
909 if (output->base.transform != WL_OUTPUT_TRANSFORM_NORMAL)
911 if (output->cursor_surface)
913 if (es->output_mask != (1u << output_base->id))
915 if (c->cursors_are_broken)
917 if (es->buffer_ref.buffer == NULL ||
918 !wl_shm_buffer_get(es->buffer_ref.buffer->resource) ||
919 es->geometry.width > 64 || es->geometry.height > 64)
922 output->cursor_surface = es;
924 return &output->cursor_plane;
928 drm_output_set_cursor(struct drm_output *output)
930 struct weston_surface *es = output->cursor_surface;
931 struct drm_compositor *c =
932 (struct drm_compositor *) output->base.compositor;
933 EGLint handle, stride;
935 uint32_t buf[64 * 64];
939 output->cursor_surface = NULL;
941 drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
945 if (es->buffer_ref.buffer &&
946 pixman_region32_not_empty(&output->cursor_plane.damage)) {
947 pixman_region32_fini(&output->cursor_plane.damage);
948 pixman_region32_init(&output->cursor_plane.damage);
949 output->current_cursor ^= 1;
950 bo = output->cursor_bo[output->current_cursor];
951 memset(buf, 0, sizeof buf);
952 stride = wl_shm_buffer_get_stride(es->buffer_ref.buffer->shm_buffer);
953 s = wl_shm_buffer_get_data(es->buffer_ref.buffer->shm_buffer);
954 for (i = 0; i < es->geometry.height; i++)
955 memcpy(buf + i * 64, s + i * stride,
956 es->geometry.width * 4);
958 if (gbm_bo_write(bo, buf, sizeof buf) < 0)
959 weston_log("failed update cursor: %m\n");
961 handle = gbm_bo_get_handle(bo).s32;
962 if (drmModeSetCursor(c->drm.fd,
963 output->crtc_id, handle, 64, 64)) {
964 weston_log("failed to set cursor: %m\n");
965 c->cursors_are_broken = 1;
969 x = (es->geometry.x - output->base.x) * output->base.scale;
970 y = (es->geometry.y - output->base.y) * output->base.scale;
971 if (output->cursor_plane.x != x || output->cursor_plane.y != y) {
972 if (drmModeMoveCursor(c->drm.fd, output->crtc_id, x, y)) {
973 weston_log("failed to move cursor: %m\n");
974 c->cursors_are_broken = 1;
977 output->cursor_plane.x = x;
978 output->cursor_plane.y = y;
983 drm_assign_planes(struct weston_output *output)
985 struct drm_compositor *c =
986 (struct drm_compositor *) output->compositor;
987 struct weston_surface *es, *next;
988 pixman_region32_t overlap, surface_overlap;
989 struct weston_plane *primary, *next_plane;
992 * Find a surface for each sprite in the output using some heuristics:
994 * 2) frequency of update
995 * 3) opacity (though some hw might support alpha blending)
996 * 4) clipping (this can be fixed with color keys)
998 * The idea is to save on blitting since this should save power.
999 * If we can get a large video surface on the sprite for example,
1000 * the main display surface may not need to update at all, and
1001 * the client buffer can be used directly for the sprite surface
1002 * as we do for flipping full screen surfaces.
1004 pixman_region32_init(&overlap);
1005 primary = &c->base.primary_plane;
1006 wl_list_for_each_safe(es, next, &c->base.surface_list, link) {
1007 /* test whether this buffer can ever go into a plane:
1008 * non-shm, or small enough to be a cursor
1010 if ((es->buffer_ref.buffer &&
1011 !wl_shm_buffer_get(es->buffer_ref.buffer->resource)) ||
1012 (es->geometry.width <= 64 && es->geometry.height <= 64))
1013 es->keep_buffer = 1;
1015 es->keep_buffer = 0;
1017 pixman_region32_init(&surface_overlap);
1018 pixman_region32_intersect(&surface_overlap, &overlap,
1019 &es->transform.boundingbox);
1022 if (pixman_region32_not_empty(&surface_overlap))
1023 next_plane = primary;
1024 if (next_plane == NULL)
1025 next_plane = drm_output_prepare_cursor_surface(output, es);
1026 if (next_plane == NULL)
1027 next_plane = drm_output_prepare_scanout_surface(output, es);
1028 if (next_plane == NULL)
1029 next_plane = drm_output_prepare_overlay_surface(output, es);
1030 if (next_plane == NULL)
1031 next_plane = primary;
1032 weston_surface_move_to_plane(es, next_plane);
1033 if (next_plane == primary)
1034 pixman_region32_union(&overlap, &overlap,
1035 &es->transform.boundingbox);
1037 pixman_region32_fini(&surface_overlap);
1039 pixman_region32_fini(&overlap);
1043 drm_output_fini_pixman(struct drm_output *output);
1046 drm_output_destroy(struct weston_output *output_base)
1048 struct drm_output *output = (struct drm_output *) output_base;
1049 struct drm_compositor *c =
1050 (struct drm_compositor *) output->base.compositor;
1051 drmModeCrtcPtr origcrtc = output->original_crtc;
1053 if (output->backlight)
1054 backlight_destroy(output->backlight);
1056 drmModeFreeProperty(output->dpms_prop);
1058 /* Turn off hardware cursor */
1059 drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0);
1061 /* Restore original CRTC state */
1062 drmModeSetCrtc(c->drm.fd, origcrtc->crtc_id, origcrtc->buffer_id,
1063 origcrtc->x, origcrtc->y,
1064 &output->connector_id, 1, &origcrtc->mode);
1065 drmModeFreeCrtc(origcrtc);
1067 c->crtc_allocator &= ~(1 << output->crtc_id);
1068 c->connector_allocator &= ~(1 << output->connector_id);
1070 if (c->use_pixman) {
1071 drm_output_fini_pixman(output);
1073 gl_renderer_output_destroy(output_base);
1074 gbm_surface_destroy(output->surface);
1077 weston_plane_release(&output->fb_plane);
1078 weston_plane_release(&output->cursor_plane);
1080 weston_output_destroy(&output->base);
1081 wl_list_remove(&output->base.link);
1086 static struct drm_mode *
1087 choose_mode (struct drm_output *output, struct weston_mode *target_mode)
1089 struct drm_mode *tmp_mode = NULL, *mode;
1091 if (output->base.current->width == target_mode->width &&
1092 output->base.current->height == target_mode->height &&
1093 (output->base.current->refresh == target_mode->refresh ||
1094 target_mode->refresh == 0))
1095 return (struct drm_mode *)output->base.current;
1097 wl_list_for_each(mode, &output->base.mode_list, base.link) {
1098 if (mode->mode_info.hdisplay == target_mode->width &&
1099 mode->mode_info.vdisplay == target_mode->height) {
1100 if (mode->mode_info.vrefresh == target_mode->refresh ||
1101 target_mode->refresh == 0) {
1103 } else if (!tmp_mode)
1112 drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec);
1114 drm_output_init_pixman(struct drm_output *output, struct drm_compositor *c);
1117 drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode)
1119 struct drm_output *output;
1120 struct drm_mode *drm_mode;
1121 struct drm_compositor *ec;
1123 if (output_base == NULL) {
1124 weston_log("output is NULL.\n");
1129 weston_log("mode is NULL.\n");
1133 ec = (struct drm_compositor *)output_base->compositor;
1134 output = (struct drm_output *)output_base;
1135 drm_mode = choose_mode (output, mode);
1138 weston_log("%s, invalid resolution:%dx%d\n", __func__, mode->width, mode->height);
1142 if (&drm_mode->base == output->base.current)
1145 output->base.current->flags = 0;
1147 output->base.current = &drm_mode->base;
1148 output->base.current->flags =
1149 WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED;
1151 /* reset rendering stuff. */
1152 drm_output_release_fb(output, output->current);
1153 drm_output_release_fb(output, output->next);
1154 output->current = output->next = NULL;
1156 if (ec->use_pixman) {
1157 drm_output_fini_pixman(output);
1158 if (drm_output_init_pixman(output, ec) < 0) {
1159 weston_log("failed to init output pixman state with "
1164 gl_renderer_output_destroy(&output->base);
1165 gbm_surface_destroy(output->surface);
1167 if (drm_output_init_egl(output, ec) < 0) {
1168 weston_log("failed to init output egl state with "
1178 on_drm_input(int fd, uint32_t mask, void *data)
1180 drmEventContext evctx;
1182 memset(&evctx, 0, sizeof evctx);
1183 evctx.version = DRM_EVENT_CONTEXT_VERSION;
1184 evctx.page_flip_handler = page_flip_handler;
1185 evctx.vblank_handler = vblank_handler;
1186 drmHandleEvent(fd, &evctx);
1192 init_drm(struct drm_compositor *ec, struct udev_device *device)
1194 const char *filename, *sysnum;
1198 sysnum = udev_device_get_sysnum(device);
1200 ec->drm.id = atoi(sysnum);
1201 if (!sysnum || ec->drm.id < 0) {
1202 weston_log("cannot get device sysnum\n");
1206 filename = udev_device_get_devnode(device);
1207 fd = open(filename, O_RDWR | O_CLOEXEC);
1209 /* Probably permissions error */
1210 weston_log("couldn't open %s, skipping\n",
1211 udev_device_get_devnode(device));
1215 weston_log("using %s\n", filename);
1219 ret = drmGetCap(fd, DRM_CAP_TIMESTAMP_MONOTONIC, &cap);
1220 if (ret == 0 && cap == 1)
1221 ec->clock = CLOCK_MONOTONIC;
1223 ec->clock = CLOCK_REALTIME;
1229 init_egl(struct drm_compositor *ec)
1231 ec->gbm = gbm_create_device(ec->drm.fd);
1236 if (gl_renderer_create(&ec->base, ec->gbm, gl_renderer_opaque_attribs,
1238 gbm_device_destroy(ec->gbm);
1246 init_pixman(struct drm_compositor *ec)
1248 return pixman_renderer_init(&ec->base);
1251 static struct drm_mode *
1252 drm_output_add_mode(struct drm_output *output, drmModeModeInfo *info)
1254 struct drm_mode *mode;
1257 mode = malloc(sizeof *mode);
1261 mode->base.flags = 0;
1262 mode->base.width = info->hdisplay;
1263 mode->base.height = info->vdisplay;
1265 /* Calculate higher precision (mHz) refresh rate */
1266 refresh = (info->clock * 1000000LL / info->htotal +
1267 info->vtotal / 2) / info->vtotal;
1269 if (info->flags & DRM_MODE_FLAG_INTERLACE)
1271 if (info->flags & DRM_MODE_FLAG_DBLSCAN)
1273 if (info->vscan > 1)
1274 refresh /= info->vscan;
1276 mode->base.refresh = refresh;
1277 mode->mode_info = *info;
1279 if (info->type & DRM_MODE_TYPE_PREFERRED)
1280 mode->base.flags |= WL_OUTPUT_MODE_PREFERRED;
1282 wl_list_insert(output->base.mode_list.prev, &mode->base.link);
1288 drm_subpixel_to_wayland(int drm_value)
1290 switch (drm_value) {
1292 case DRM_MODE_SUBPIXEL_UNKNOWN:
1293 return WL_OUTPUT_SUBPIXEL_UNKNOWN;
1294 case DRM_MODE_SUBPIXEL_NONE:
1295 return WL_OUTPUT_SUBPIXEL_NONE;
1296 case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB:
1297 return WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB;
1298 case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR:
1299 return WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR;
1300 case DRM_MODE_SUBPIXEL_VERTICAL_RGB:
1301 return WL_OUTPUT_SUBPIXEL_VERTICAL_RGB;
1302 case DRM_MODE_SUBPIXEL_VERTICAL_BGR:
1303 return WL_OUTPUT_SUBPIXEL_VERTICAL_BGR;
1307 /* returns a value between 0-255 range, where higher is brighter */
1309 drm_get_backlight(struct drm_output *output)
1311 long brightness, max_brightness, norm;
1313 brightness = backlight_get_brightness(output->backlight);
1314 max_brightness = backlight_get_max_brightness(output->backlight);
1316 /* convert it on a scale of 0 to 255 */
1317 norm = (brightness * 255)/(max_brightness);
1319 return (uint32_t) norm;
1322 /* values accepted are between 0-255 range */
1324 drm_set_backlight(struct weston_output *output_base, uint32_t value)
1326 struct drm_output *output = (struct drm_output *) output_base;
1327 long max_brightness, new_brightness;
1329 if (!output->backlight)
1335 max_brightness = backlight_get_max_brightness(output->backlight);
1337 /* get denormalized value */
1338 new_brightness = (value * max_brightness) / 255;
1340 backlight_set_brightness(output->backlight, new_brightness);
1343 static drmModePropertyPtr
1344 drm_get_prop(int fd, drmModeConnectorPtr connector, const char *name)
1346 drmModePropertyPtr props;
1349 for (i = 0; i < connector->count_props; i++) {
1350 props = drmModeGetProperty(fd, connector->props[i]);
1354 if (!strcmp(props->name, name))
1357 drmModeFreeProperty(props);
1364 drm_set_dpms(struct weston_output *output_base, enum dpms_enum level)
1366 struct drm_output *output = (struct drm_output *) output_base;
1367 struct weston_compositor *ec = output_base->compositor;
1368 struct drm_compositor *c = (struct drm_compositor *) ec;
1370 if (!output->dpms_prop)
1373 drmModeConnectorSetProperty(c->drm.fd, output->connector_id,
1374 output->dpms_prop->prop_id, level);
1377 static const char *connector_type_names[] = {
1396 find_crtc_for_connector(struct drm_compositor *ec,
1397 drmModeRes *resources, drmModeConnector *connector)
1399 drmModeEncoder *encoder;
1400 uint32_t possible_crtcs;
1403 for (j = 0; j < connector->count_encoders; j++) {
1404 encoder = drmModeGetEncoder(ec->drm.fd, connector->encoders[j]);
1405 if (encoder == NULL) {
1406 weston_log("Failed to get encoder.\n");
1409 possible_crtcs = encoder->possible_crtcs;
1410 drmModeFreeEncoder(encoder);
1412 for (i = 0; i < resources->count_crtcs; i++) {
1413 if (possible_crtcs & (1 << i) &&
1414 !(ec->crtc_allocator & (1 << resources->crtcs[i])))
1422 /* Init output state that depends on gl or gbm */
1424 drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec)
1428 output->surface = gbm_surface_create(ec->gbm,
1429 output->base.current->width,
1430 output->base.current->height,
1431 GBM_FORMAT_XRGB8888,
1432 GBM_BO_USE_SCANOUT |
1433 GBM_BO_USE_RENDERING);
1434 if (!output->surface) {
1435 weston_log("failed to create gbm surface\n");
1439 if (gl_renderer_output_create(&output->base, output->surface) < 0) {
1440 weston_log("failed to create gl renderer output state\n");
1441 gbm_surface_destroy(output->surface);
1445 flags = GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE;
1447 for (i = 0; i < 2; i++) {
1448 if (output->cursor_bo[i])
1451 output->cursor_bo[i] =
1452 gbm_bo_create(ec->gbm, 64, 64, GBM_FORMAT_ARGB8888,
1456 if (output->cursor_bo[0] == NULL || output->cursor_bo[1] == NULL) {
1457 weston_log("cursor buffers unavailable, using gl cursors\n");
1458 ec->cursors_are_broken = 1;
1465 drm_output_init_pixman(struct drm_output *output, struct drm_compositor *c)
1467 int w = output->base.current->width;
1468 int h = output->base.current->height;
1471 /* FIXME error checking */
1473 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1474 output->dumb[i] = drm_fb_create_dumb(c, w, h);
1475 if (!output->dumb[i])
1479 pixman_image_create_bits(PIXMAN_x8r8g8b8, w, h,
1480 output->dumb[i]->map,
1481 output->dumb[i]->stride);
1482 if (!output->image[i])
1486 if (pixman_renderer_output_create(&output->base) < 0)
1489 pixman_region32_init_rect(&output->previous_damage,
1490 output->base.x, output->base.y, output->base.width, output->base.height);
1495 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1496 if (output->dumb[i])
1497 drm_fb_destroy_dumb(output->dumb[i]);
1498 if (output->image[i])
1499 pixman_image_unref(output->image[i]);
1501 output->dumb[i] = NULL;
1502 output->image[i] = NULL;
1509 drm_output_fini_pixman(struct drm_output *output)
1513 pixman_renderer_output_destroy(&output->base);
1514 pixman_region32_fini(&output->previous_damage);
1516 for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) {
1517 drm_fb_destroy_dumb(output->dumb[i]);
1518 pixman_image_unref(output->image[i]);
1519 output->dumb[i] = NULL;
1520 output->image[i] = NULL;
1525 edid_parse_string(const uint8_t *data, char text[])
1530 /* this is always 12 bytes, but we can't guarantee it's null
1531 * terminated or not junk. */
1532 strncpy(text, (const char *) data, 12);
1534 /* remove insane chars */
1535 for (i = 0; text[i] != '\0'; i++) {
1536 if (text[i] == '\n' ||
1543 /* ensure string is printable */
1544 for (i = 0; text[i] != '\0'; i++) {
1545 if (!isprint(text[i])) {
1551 /* if the string is random junk, ignore the string */
1556 #define EDID_DESCRIPTOR_ALPHANUMERIC_DATA_STRING 0xfe
1557 #define EDID_DESCRIPTOR_DISPLAY_PRODUCT_NAME 0xfc
1558 #define EDID_DESCRIPTOR_DISPLAY_PRODUCT_SERIAL_NUMBER 0xff
1559 #define EDID_OFFSET_DATA_BLOCKS 0x36
1560 #define EDID_OFFSET_LAST_BLOCK 0x6c
1561 #define EDID_OFFSET_PNPID 0x08
1562 #define EDID_OFFSET_SERIAL 0x0c
1565 edid_parse(struct drm_edid *edid, const uint8_t *data, size_t length)
1568 uint32_t serial_number;
1573 if (data[0] != 0x00 || data[1] != 0xff)
1576 /* decode the PNP ID from three 5 bit words packed into 2 bytes
1581 edid->pnp_id[0] = 'A' + ((data[EDID_OFFSET_PNPID + 0] & 0x7c) / 4) - 1;
1582 edid->pnp_id[1] = 'A' + ((data[EDID_OFFSET_PNPID + 0] & 0x3) * 8) + ((data[EDID_OFFSET_PNPID + 1] & 0xe0) / 32) - 1;
1583 edid->pnp_id[2] = 'A' + (data[EDID_OFFSET_PNPID + 1] & 0x1f) - 1;
1584 edid->pnp_id[3] = '\0';
1586 /* maybe there isn't a ASCII serial number descriptor, so use this instead */
1587 serial_number = (uint32_t) data[EDID_OFFSET_SERIAL + 0];
1588 serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 1] * 0x100;
1589 serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 2] * 0x10000;
1590 serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 3] * 0x1000000;
1591 if (serial_number > 0)
1592 sprintf(edid->serial_number, "%lu", (unsigned long) serial_number);
1594 /* parse EDID data */
1595 for (i = EDID_OFFSET_DATA_BLOCKS;
1596 i <= EDID_OFFSET_LAST_BLOCK;
1598 /* ignore pixel clock data */
1604 /* any useful blocks? */
1605 if (data[i+3] == EDID_DESCRIPTOR_DISPLAY_PRODUCT_NAME) {
1606 edid_parse_string(&data[i+5],
1607 edid->monitor_name);
1608 } else if (data[i+3] == EDID_DESCRIPTOR_DISPLAY_PRODUCT_SERIAL_NUMBER) {
1609 edid_parse_string(&data[i+5],
1610 edid->serial_number);
1611 } else if (data[i+3] == EDID_DESCRIPTOR_ALPHANUMERIC_DATA_STRING) {
1612 edid_parse_string(&data[i+5],
1620 find_and_parse_output_edid(struct drm_compositor *ec,
1621 struct drm_output *output,
1622 drmModeConnector *connector)
1624 drmModePropertyBlobPtr edid_blob = NULL;
1625 drmModePropertyPtr property;
1629 for (i = 0; i < connector->count_props && !edid_blob; i++) {
1630 property = drmModeGetProperty(ec->drm.fd, connector->props[i]);
1633 if ((property->flags & DRM_MODE_PROP_BLOB) &&
1634 !strcmp(property->name, "EDID")) {
1635 edid_blob = drmModeGetPropertyBlob(ec->drm.fd,
1636 connector->prop_values[i]);
1638 drmModeFreeProperty(property);
1643 rc = edid_parse(&output->edid,
1647 weston_log("EDID data '%s', '%s', '%s'\n",
1648 output->edid.pnp_id,
1649 output->edid.monitor_name,
1650 output->edid.serial_number);
1651 if (output->edid.pnp_id[0] != '\0')
1652 output->base.make = output->edid.pnp_id;
1653 if (output->edid.monitor_name[0] != '\0')
1654 output->base.model = output->edid.monitor_name;
1655 if (output->edid.serial_number[0] != '\0')
1656 output->base.serial_number = output->edid.serial_number;
1658 drmModeFreePropertyBlob(edid_blob);
1664 parse_modeline(const char *s, drmModeModeInfo *mode)
1670 mode->type = DRM_MODE_TYPE_USERDEF;
1676 if (sscanf(s, "%f %hd %hd %hd %hd %hd %hd %hd %hd %15s %15s",
1685 &mode->vtotal, hsync, vsync) != 11)
1688 mode->clock = fclock * 1000;
1689 if (strcmp(hsync, "+hsync") == 0)
1690 mode->flags |= DRM_MODE_FLAG_PHSYNC;
1691 else if (strcmp(hsync, "-hsync") == 0)
1692 mode->flags |= DRM_MODE_FLAG_NHSYNC;
1696 if (strcmp(vsync, "+vsync") == 0)
1697 mode->flags |= DRM_MODE_FLAG_PVSYNC;
1698 else if (strcmp(vsync, "-vsync") == 0)
1699 mode->flags |= DRM_MODE_FLAG_NVSYNC;
1707 parse_transform(const char *transform, const char *output_name)
1709 static const struct { const char *name; uint32_t token; } names[] = {
1710 { "normal", WL_OUTPUT_TRANSFORM_NORMAL },
1711 { "90", WL_OUTPUT_TRANSFORM_90 },
1712 { "180", WL_OUTPUT_TRANSFORM_180 },
1713 { "270", WL_OUTPUT_TRANSFORM_270 },
1714 { "flipped", WL_OUTPUT_TRANSFORM_FLIPPED },
1715 { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 },
1716 { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 },
1717 { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 },
1721 for (i = 0; i < ARRAY_LENGTH(names); i++)
1722 if (strcmp(names[i].name, transform) == 0)
1723 return names[i].token;
1725 weston_log("Invalid transform \"%s\" for output %s\n",
1726 transform, output_name);
1728 return WL_OUTPUT_TRANSFORM_NORMAL;
1732 setup_output_seat_constraint(struct drm_compositor *ec,
1733 struct weston_output *output,
1736 if (strcmp(s, "") != 0) {
1737 struct udev_seat *seat;
1739 seat = udev_seat_get_named(&ec->base, s);
1741 seat->base.output = output;
1743 if (seat && seat->base.pointer)
1744 weston_pointer_clamp(seat->base.pointer,
1745 &seat->base.pointer->x,
1746 &seat->base.pointer->y);
1751 create_output_for_connector(struct drm_compositor *ec,
1752 drmModeRes *resources,
1753 drmModeConnector *connector,
1754 int x, int y, struct udev_device *drm_device)
1756 struct drm_output *output;
1757 struct drm_mode *drm_mode, *next, *preferred, *current, *configured;
1758 struct weston_mode *m;
1759 struct weston_config_section *section;
1760 drmModeEncoder *encoder;
1761 drmModeModeInfo crtc_mode, modeline;
1763 int i, width, height, scale;
1765 const char *type_name;
1766 enum output_config config;
1769 i = find_crtc_for_connector(ec, resources, connector);
1771 weston_log("No usable crtc/encoder pair for connector.\n");
1775 output = malloc(sizeof *output);
1779 memset(output, 0, sizeof *output);
1780 output->base.subpixel = drm_subpixel_to_wayland(connector->subpixel);
1781 output->base.make = "unknown";
1782 output->base.model = "unknown";
1783 output->base.serial_number = "unknown";
1784 wl_list_init(&output->base.mode_list);
1786 if (connector->connector_type < ARRAY_LENGTH(connector_type_names))
1787 type_name = connector_type_names[connector->connector_type];
1789 type_name = "UNKNOWN";
1790 snprintf(name, 32, "%s%d", type_name, connector->connector_type_id);
1791 output->base.name = strdup(name);
1793 section = weston_config_get_section(ec->base.config, "output", "name",
1795 weston_config_section_get_string(section, "mode", &s, "preferred");
1796 if (strcmp(s, "off") == 0)
1797 config = OUTPUT_CONFIG_OFF;
1798 else if (strcmp(s, "preferred") == 0)
1799 config = OUTPUT_CONFIG_PREFERRED;
1800 else if (strcmp(s, "current") == 0)
1801 config = OUTPUT_CONFIG_CURRENT;
1802 else if (sscanf(s, "%dx%d", &width, &height) == 2)
1803 config = OUTPUT_CONFIG_MODE;
1804 else if (parse_modeline(s, &modeline) == 0)
1805 config = OUTPUT_CONFIG_MODELINE;
1807 weston_log("Invalid mode \"%s\" for output %s\n",
1808 s, output->base.name);
1809 config = OUTPUT_CONFIG_PREFERRED;
1813 weston_config_section_get_int(section, "scale", &scale, 1);
1814 weston_config_section_get_string(section, "transform", &s, "normal");
1815 transform = parse_transform(s, output->base.name);
1818 weston_config_section_get_string(section, "seat", &s, "");
1819 setup_output_seat_constraint(ec, &output->base, s);
1822 output->crtc_id = resources->crtcs[i];
1824 ec->crtc_allocator |= (1 << output->crtc_id);
1825 output->connector_id = connector->connector_id;
1826 ec->connector_allocator |= (1 << output->connector_id);
1828 output->original_crtc = drmModeGetCrtc(ec->drm.fd, output->crtc_id);
1829 output->dpms_prop = drm_get_prop(ec->drm.fd, connector, "DPMS");
1831 /* Get the current mode on the crtc that's currently driving
1832 * this connector. */
1833 encoder = drmModeGetEncoder(ec->drm.fd, connector->encoder_id);
1834 memset(&crtc_mode, 0, sizeof crtc_mode);
1835 if (encoder != NULL) {
1836 crtc = drmModeGetCrtc(ec->drm.fd, encoder->crtc_id);
1837 drmModeFreeEncoder(encoder);
1840 if (crtc->mode_valid)
1841 crtc_mode = crtc->mode;
1842 drmModeFreeCrtc(crtc);
1845 for (i = 0; i < connector->count_modes; i++) {
1846 drm_mode = drm_output_add_mode(output, &connector->modes[i]);
1851 if (config == OUTPUT_CONFIG_OFF) {
1852 weston_log("Disabling output %s\n", output->base.name);
1853 drmModeSetCrtc(ec->drm.fd, output->crtc_id,
1854 0, 0, 0, 0, 0, NULL);
1862 wl_list_for_each_reverse(drm_mode, &output->base.mode_list, base.link) {
1863 if (config == OUTPUT_CONFIG_MODE &&
1864 width == drm_mode->base.width &&
1865 height == drm_mode->base.height)
1866 configured = drm_mode;
1867 if (!memcmp(&crtc_mode, &drm_mode->mode_info, sizeof crtc_mode))
1869 if (drm_mode->base.flags & WL_OUTPUT_MODE_PREFERRED)
1870 preferred = drm_mode;
1873 if (config == OUTPUT_CONFIG_MODELINE) {
1874 configured = drm_output_add_mode(output, &modeline);
1879 if (current == NULL && crtc_mode.clock != 0) {
1880 current = drm_output_add_mode(output, &crtc_mode);
1885 if (config == OUTPUT_CONFIG_CURRENT)
1886 configured = current;
1888 if (option_current_mode && current)
1889 output->base.current = ¤t->base;
1890 else if (configured)
1891 output->base.current = &configured->base;
1893 output->base.current = &preferred->base;
1895 output->base.current = ¤t->base;
1897 if (output->base.current == NULL) {
1898 weston_log("no available modes for %s\n", output->base.name);
1902 output->base.current->flags |= WL_OUTPUT_MODE_CURRENT;
1904 weston_output_init(&output->base, &ec->base, x, y,
1905 connector->mmWidth, connector->mmHeight,
1908 if (ec->use_pixman) {
1909 if (drm_output_init_pixman(output, ec) < 0) {
1910 weston_log("Failed to init output pixman state\n");
1913 } else if (drm_output_init_egl(output, ec) < 0) {
1914 weston_log("Failed to init output gl state\n");
1918 output->backlight = backlight_init(drm_device,
1919 connector->connector_type);
1920 if (output->backlight) {
1921 weston_log("Initialized backlight, device %s\n",
1922 output->backlight->path);
1923 output->base.set_backlight = drm_set_backlight;
1924 output->base.backlight_current = drm_get_backlight(output);
1926 weston_log("Failed to initialize backlight\n");
1929 wl_list_insert(ec->base.output_list.prev, &output->base.link);
1931 find_and_parse_output_edid(ec, output, connector);
1932 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
1933 output->base.connection_internal = 1;
1935 output->base.origin = output->base.current;
1936 output->base.start_repaint_loop = drm_output_start_repaint_loop;
1937 output->base.repaint = drm_output_repaint;
1938 output->base.destroy = drm_output_destroy;
1939 output->base.assign_planes = drm_assign_planes;
1940 output->base.set_dpms = drm_set_dpms;
1941 output->base.switch_mode = drm_output_switch_mode;
1943 output->base.gamma_size = output->original_crtc->gamma_size;
1944 output->base.set_gamma = drm_output_set_gamma;
1946 weston_plane_init(&output->cursor_plane, 0, 0);
1947 weston_plane_init(&output->fb_plane, 0, 0);
1949 weston_compositor_stack_plane(&ec->base, &output->cursor_plane, NULL);
1950 weston_compositor_stack_plane(&ec->base, &output->fb_plane,
1951 &ec->base.primary_plane);
1953 weston_log("Output %s, (connector %d, crtc %d)\n",
1954 output->base.name, output->connector_id, output->crtc_id);
1955 wl_list_for_each(m, &output->base.mode_list, link)
1956 weston_log_continue(" mode %dx%d@%.1f%s%s%s\n",
1957 m->width, m->height, m->refresh / 1000.0,
1958 m->flags & WL_OUTPUT_MODE_PREFERRED ?
1960 m->flags & WL_OUTPUT_MODE_CURRENT ?
1962 connector->count_modes == 0 ?
1968 weston_output_destroy(&output->base);
1970 wl_list_for_each_safe(drm_mode, next, &output->base.mode_list,
1972 wl_list_remove(&drm_mode->base.link);
1976 drmModeFreeCrtc(output->original_crtc);
1977 ec->crtc_allocator &= ~(1 << output->crtc_id);
1978 ec->connector_allocator &= ~(1 << output->connector_id);
1985 create_sprites(struct drm_compositor *ec)
1987 struct drm_sprite *sprite;
1988 drmModePlaneRes *plane_res;
1989 drmModePlane *plane;
1992 plane_res = drmModeGetPlaneResources(ec->drm.fd);
1994 weston_log("failed to get plane resources: %s\n",
1999 for (i = 0; i < plane_res->count_planes; i++) {
2000 plane = drmModeGetPlane(ec->drm.fd, plane_res->planes[i]);
2004 sprite = malloc(sizeof(*sprite) + ((sizeof(uint32_t)) *
2005 plane->count_formats));
2007 weston_log("%s: out of memory\n",
2013 memset(sprite, 0, sizeof *sprite);
2015 sprite->possible_crtcs = plane->possible_crtcs;
2016 sprite->plane_id = plane->plane_id;
2017 sprite->current = NULL;
2018 sprite->next = NULL;
2019 sprite->compositor = ec;
2020 sprite->count_formats = plane->count_formats;
2021 memcpy(sprite->formats, plane->formats,
2022 plane->count_formats * sizeof(plane->formats[0]));
2023 drmModeFreePlane(plane);
2024 weston_plane_init(&sprite->plane, 0, 0);
2025 weston_compositor_stack_plane(&ec->base, &sprite->plane,
2026 &ec->base.primary_plane);
2028 wl_list_insert(&ec->sprite_list, &sprite->link);
2031 drmModeFreePlaneResources(plane_res);
2035 destroy_sprites(struct drm_compositor *compositor)
2037 struct drm_sprite *sprite, *next;
2038 struct drm_output *output;
2040 output = container_of(compositor->base.output_list.next,
2041 struct drm_output, base.link);
2043 wl_list_for_each_safe(sprite, next, &compositor->sprite_list, link) {
2044 drmModeSetPlane(compositor->drm.fd,
2046 output->crtc_id, 0, 0,
2047 0, 0, 0, 0, 0, 0, 0, 0);
2048 drm_output_release_fb(output, sprite->current);
2049 drm_output_release_fb(output, sprite->next);
2050 weston_plane_release(&sprite->plane);
2056 create_outputs(struct drm_compositor *ec, uint32_t option_connector,
2057 struct udev_device *drm_device)
2059 drmModeConnector *connector;
2060 drmModeRes *resources;
2064 resources = drmModeGetResources(ec->drm.fd);
2066 weston_log("drmModeGetResources failed\n");
2070 ec->crtcs = calloc(resources->count_crtcs, sizeof(uint32_t));
2072 drmModeFreeResources(resources);
2076 ec->min_width = resources->min_width;
2077 ec->max_width = resources->max_width;
2078 ec->min_height = resources->min_height;
2079 ec->max_height = resources->max_height;
2081 ec->num_crtcs = resources->count_crtcs;
2082 memcpy(ec->crtcs, resources->crtcs, sizeof(uint32_t) * ec->num_crtcs);
2084 for (i = 0; i < resources->count_connectors; i++) {
2085 connector = drmModeGetConnector(ec->drm.fd,
2086 resources->connectors[i]);
2087 if (connector == NULL)
2090 if (connector->connection == DRM_MODE_CONNECTED &&
2091 (option_connector == 0 ||
2092 connector->connector_id == option_connector)) {
2093 if (create_output_for_connector(ec, resources,
2096 drmModeFreeConnector(connector);
2100 x += container_of(ec->base.output_list.prev,
2101 struct weston_output,
2105 drmModeFreeConnector(connector);
2108 if (wl_list_empty(&ec->base.output_list)) {
2109 weston_log("No currently active connector found.\n");
2110 drmModeFreeResources(resources);
2114 drmModeFreeResources(resources);
2120 update_outputs(struct drm_compositor *ec, struct udev_device *drm_device)
2122 drmModeConnector *connector;
2123 drmModeRes *resources;
2124 struct drm_output *output, *next;
2126 int x_offset = 0, y_offset = 0;
2127 uint32_t connected = 0, disconnects = 0;
2130 resources = drmModeGetResources(ec->drm.fd);
2132 weston_log("drmModeGetResources failed\n");
2136 /* collect new connects */
2137 for (i = 0; i < resources->count_connectors; i++) {
2138 int connector_id = resources->connectors[i];
2140 connector = drmModeGetConnector(ec->drm.fd, connector_id);
2141 if (connector == NULL)
2144 if (connector->connection != DRM_MODE_CONNECTED) {
2145 drmModeFreeConnector(connector);
2149 connected |= (1 << connector_id);
2151 if (!(ec->connector_allocator & (1 << connector_id))) {
2152 struct weston_output *last =
2153 container_of(ec->base.output_list.prev,
2154 struct weston_output, link);
2156 /* XXX: not yet needed, we die with 0 outputs */
2157 if (!wl_list_empty(&ec->base.output_list))
2158 x = last->x + last->width;
2162 create_output_for_connector(ec, resources,
2165 weston_log("connector %d connected\n", connector_id);
2168 drmModeFreeConnector(connector);
2170 drmModeFreeResources(resources);
2172 disconnects = ec->connector_allocator & ~connected;
2174 wl_list_for_each_safe(output, next, &ec->base.output_list,
2176 if (x_offset != 0 || y_offset != 0) {
2177 weston_output_move(&output->base,
2178 output->base.x - x_offset,
2179 output->base.y - y_offset);
2182 if (disconnects & (1 << output->connector_id)) {
2183 disconnects &= ~(1 << output->connector_id);
2184 weston_log("connector %d disconnected\n",
2185 output->connector_id);
2186 x_offset += output->base.width;
2187 drm_output_destroy(&output->base);
2192 /* FIXME: handle zero outputs, without terminating */
2193 if (ec->connector_allocator == 0)
2194 wl_display_terminate(ec->base.wl_display);
2198 udev_event_is_hotplug(struct drm_compositor *ec, struct udev_device *device)
2203 sysnum = udev_device_get_sysnum(device);
2204 if (!sysnum || atoi(sysnum) != ec->drm.id)
2207 val = udev_device_get_property_value(device, "HOTPLUG");
2211 return strcmp(val, "1") == 0;
2215 udev_drm_event(int fd, uint32_t mask, void *data)
2217 struct drm_compositor *ec = data;
2218 struct udev_device *event;
2220 event = udev_monitor_receive_device(ec->udev_monitor);
2222 if (udev_event_is_hotplug(ec, event))
2223 update_outputs(ec, event);
2225 udev_device_unref(event);
2231 drm_restore(struct weston_compositor *ec)
2233 struct drm_compositor *d = (struct drm_compositor *) ec;
2235 if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0)
2236 weston_log("failed to drop master: %m\n");
2241 drm_destroy(struct weston_compositor *ec)
2243 struct drm_compositor *d = (struct drm_compositor *) ec;
2245 udev_input_destroy(&d->input);
2247 wl_event_source_remove(d->udev_drm_source);
2248 wl_event_source_remove(d->drm_source);
2252 weston_compositor_shutdown(ec);
2254 ec->renderer->destroy(ec);
2257 gbm_device_destroy(d->gbm);
2259 if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0)
2260 weston_log("failed to drop master: %m\n");
2261 tty_destroy(d->tty);
2269 drm_compositor_set_modes(struct drm_compositor *compositor)
2271 struct drm_output *output;
2272 struct drm_mode *drm_mode;
2275 wl_list_for_each(output, &compositor->base.output_list, base.link) {
2276 if (!output->current) {
2277 /* If something that would cause the output to
2278 * switch mode happened while in another vt, we
2279 * might not have a current drm_fb. In that case,
2280 * schedule a repaint and let drm_output_repaint
2281 * handle setting the mode. */
2282 weston_output_schedule_repaint(&output->base);
2286 drm_mode = (struct drm_mode *) output->base.current;
2287 ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id,
2288 output->current->fb_id, 0, 0,
2289 &output->connector_id, 1,
2290 &drm_mode->mode_info);
2293 "failed to set mode %dx%d for output at %d,%d: %m\n",
2294 drm_mode->base.width, drm_mode->base.height,
2295 output->base.x, output->base.y);
2301 vt_func(struct weston_compositor *compositor, int event)
2303 struct drm_compositor *ec = (struct drm_compositor *) compositor;
2304 struct drm_sprite *sprite;
2305 struct drm_output *output;
2309 weston_log("entering VT\n");
2310 compositor->focus = 1;
2311 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 1)) {
2312 weston_log("failed to set master: %m\n");
2313 wl_display_terminate(compositor->wl_display);
2315 compositor->state = ec->prev_state;
2316 drm_compositor_set_modes(ec);
2317 weston_compositor_damage_all(compositor);
2318 udev_input_enable(&ec->input, ec->udev);
2321 weston_log("leaving VT\n");
2322 udev_input_disable(&ec->input);
2324 compositor->focus = 0;
2325 ec->prev_state = compositor->state;
2326 weston_compositor_offscreen(compositor);
2328 /* If we have a repaint scheduled (either from a
2329 * pending pageflip or the idle handler), make sure we
2330 * cancel that so we don't try to pageflip when we're
2331 * vt switched away. The OFFSCREEN state will prevent
2332 * further attemps at repainting. When we switch
2333 * back, we schedule a repaint, which will process
2334 * pending frame callbacks. */
2336 wl_list_for_each(output, &ec->base.output_list, base.link) {
2337 output->base.repaint_needed = 0;
2338 drmModeSetCursor(ec->drm.fd, output->crtc_id, 0, 0, 0);
2341 output = container_of(ec->base.output_list.next,
2342 struct drm_output, base.link);
2344 wl_list_for_each(sprite, &ec->sprite_list, link)
2345 drmModeSetPlane(ec->drm.fd,
2347 output->crtc_id, 0, 0,
2348 0, 0, 0, 0, 0, 0, 0, 0);
2350 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0)
2351 weston_log("failed to drop master: %m\n");
2358 switch_vt_binding(struct weston_seat *seat, uint32_t time, uint32_t key, void *data)
2360 struct drm_compositor *ec = data;
2362 tty_activate_vt(ec->tty, key - KEY_F1 + 1);
2367 * Some systems may have multiple DRM devices attached to a single seat. This
2368 * function loops over all devices and tries to find a PCI device with the
2369 * boot_vga sysfs attribute set to 1.
2370 * If no such device is found, the first DRM device reported by udev is used.
2372 static struct udev_device*
2373 find_primary_gpu(struct drm_compositor *ec, const char *seat)
2375 struct udev_enumerate *e;
2376 struct udev_list_entry *entry;
2377 const char *path, *device_seat, *id;
2378 struct udev_device *device, *drm_device, *pci;
2380 e = udev_enumerate_new(ec->udev);
2381 udev_enumerate_add_match_subsystem(e, "drm");
2382 udev_enumerate_add_match_sysname(e, "card[0-9]*");
2384 udev_enumerate_scan_devices(e);
2386 udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
2387 path = udev_list_entry_get_name(entry);
2388 device = udev_device_new_from_syspath(ec->udev, path);
2391 device_seat = udev_device_get_property_value(device, "ID_SEAT");
2393 device_seat = default_seat;
2394 if (strcmp(device_seat, seat)) {
2395 udev_device_unref(device);
2399 pci = udev_device_get_parent_with_subsystem_devtype(device,
2402 id = udev_device_get_sysattr_value(pci, "boot_vga");
2403 if (id && !strcmp(id, "1")) {
2405 udev_device_unref(drm_device);
2406 drm_device = device;
2412 drm_device = device;
2414 udev_device_unref(device);
2417 udev_enumerate_unref(e);
2422 planes_binding(struct weston_seat *seat, uint32_t time, uint32_t key, void *data)
2424 struct drm_compositor *c = data;
2428 c->cursors_are_broken ^= 1;
2431 c->sprites_are_broken ^= 1;
2434 c->sprites_hidden ^= 1;
2441 static struct weston_compositor *
2442 drm_compositor_create(struct wl_display *display,
2443 int connector, const char *seat_id, int tty, int pixman,
2444 int *argc, char *argv[],
2445 struct weston_config *config)
2447 struct drm_compositor *ec;
2448 struct udev_device *drm_device;
2449 struct wl_event_loop *loop;
2453 weston_log("initializing drm backend\n");
2455 ec = malloc(sizeof *ec);
2458 memset(ec, 0, sizeof *ec);
2460 /* KMS support for sprites is not complete yet, so disable the
2461 * functionality for now. */
2462 ec->sprites_are_broken = 1;
2464 ec->use_pixman = pixman;
2466 if (weston_compositor_init(&ec->base, display, argc, argv,
2468 weston_log("%s failed\n", __func__);
2472 /* Check if we run drm-backend using weston-launch */
2473 ec->base.launcher_sock =
2474 weston_environment_get_fd("WESTON_LAUNCHER_SOCK");
2475 if (ec->base.launcher_sock == -1 && geteuid() != 0) {
2476 weston_log("fatal: drm backend should be run "
2477 "using weston-launch binary or as root\n");
2478 goto err_compositor;
2481 ec->udev = udev_new();
2482 if (ec->udev == NULL) {
2483 weston_log("failed to initialize udev context\n");
2484 goto err_compositor;
2487 ec->base.wl_display = display;
2488 ec->tty = tty_create(&ec->base, vt_func, tty);
2490 weston_log("failed to initialize tty\n");
2494 drm_device = find_primary_gpu(ec, seat_id);
2495 if (drm_device == NULL) {
2496 weston_log("no drm device found\n");
2499 path = udev_device_get_syspath(drm_device);
2501 if (init_drm(ec, drm_device) < 0) {
2502 weston_log("failed to initialize kms\n");
2506 if (ec->use_pixman) {
2507 if (init_pixman(ec) < 0) {
2508 weston_log("failed to initialize pixman renderer\n");
2512 if (init_egl(ec) < 0) {
2513 weston_log("failed to initialize egl\n");
2518 ec->base.destroy = drm_destroy;
2519 ec->base.restore = drm_restore;
2523 ec->prev_state = WESTON_COMPOSITOR_ACTIVE;
2525 for (key = KEY_F1; key < KEY_F9; key++)
2526 weston_compositor_add_key_binding(&ec->base, key,
2527 MODIFIER_CTRL | MODIFIER_ALT,
2528 switch_vt_binding, ec);
2530 wl_list_init(&ec->sprite_list);
2533 if (create_outputs(ec, connector, drm_device) < 0) {
2534 weston_log("failed to create output for %s\n", path);
2540 if (udev_input_init(&ec->input, &ec->base, ec->udev, seat_id) < 0) {
2541 weston_log("failed to create input devices\n");
2545 loop = wl_display_get_event_loop(ec->base.wl_display);
2547 wl_event_loop_add_fd(loop, ec->drm.fd,
2548 WL_EVENT_READABLE, on_drm_input, ec);
2550 ec->udev_monitor = udev_monitor_new_from_netlink(ec->udev, "udev");
2551 if (ec->udev_monitor == NULL) {
2552 weston_log("failed to intialize udev monitor\n");
2553 goto err_drm_source;
2555 udev_monitor_filter_add_match_subsystem_devtype(ec->udev_monitor,
2557 ec->udev_drm_source =
2558 wl_event_loop_add_fd(loop,
2559 udev_monitor_get_fd(ec->udev_monitor),
2560 WL_EVENT_READABLE, udev_drm_event, ec);
2562 if (udev_monitor_enable_receiving(ec->udev_monitor) < 0) {
2563 weston_log("failed to enable udev-monitor receiving\n");
2564 goto err_udev_monitor;
2567 udev_device_unref(drm_device);
2569 weston_compositor_add_debug_binding(&ec->base, KEY_O,
2570 planes_binding, ec);
2571 weston_compositor_add_debug_binding(&ec->base, KEY_C,
2572 planes_binding, ec);
2573 weston_compositor_add_debug_binding(&ec->base, KEY_V,
2574 planes_binding, ec);
2579 wl_event_source_remove(ec->udev_drm_source);
2580 udev_monitor_unref(ec->udev_monitor);
2582 wl_event_source_remove(ec->drm_source);
2583 udev_input_destroy(&ec->input);
2585 ec->base.renderer->destroy(&ec->base);
2586 gbm_device_destroy(ec->gbm);
2587 destroy_sprites(ec);
2589 udev_device_unref(drm_device);
2591 if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0)
2592 weston_log("failed to drop master: %m\n");
2593 tty_destroy(ec->tty);
2595 udev_unref(ec->udev);
2597 weston_compositor_shutdown(&ec->base);
2603 WL_EXPORT struct weston_compositor *
2604 backend_init(struct wl_display *display, int *argc, char *argv[],
2605 struct weston_config *config)
2607 int connector = 0, tty = 0, use_pixman = 0;
2608 const char *seat_id = default_seat;
2610 const struct weston_option drm_options[] = {
2611 { WESTON_OPTION_INTEGER, "connector", 0, &connector },
2612 { WESTON_OPTION_STRING, "seat", 0, &seat_id },
2613 { WESTON_OPTION_INTEGER, "tty", 0, &tty },
2614 { WESTON_OPTION_BOOLEAN, "current-mode", 0, &option_current_mode },
2615 { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
2618 parse_options(drm_options, ARRAY_LENGTH(drm_options), argc, argv);
2620 return drm_compositor_create(display, connector, seat_id, tty, use_pixman,
2621 argc, argv, config);