/* * Copyright © 2008-2011 Kristian Høgsberg * Copyright © 2011 Intel Corporation * * Permission to use, copy, modify, distribute, and sell this software and * its documentation for any purpose is hereby granted without fee, provided * that the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of the copyright holders not be used in * advertising or publicity pertaining to distribution of the software * without specific, written prior permission. The copyright holders make * no representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied warranty. * * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "compositor.h" #include "gl-renderer.h" #include "pixman-renderer.h" #include "udev-seat.h" #include "launcher-util.h" #ifndef DRM_CAP_TIMESTAMP_MONOTONIC #define DRM_CAP_TIMESTAMP_MONOTONIC 0x6 #endif static int option_current_mode = 0; enum output_config { OUTPUT_CONFIG_INVALID = 0, OUTPUT_CONFIG_OFF, OUTPUT_CONFIG_PREFERRED, OUTPUT_CONFIG_CURRENT, OUTPUT_CONFIG_MODE, OUTPUT_CONFIG_MODELINE }; struct drm_compositor { struct weston_compositor base; struct udev *udev; struct wl_event_source *drm_source; struct udev_monitor *udev_monitor; struct wl_event_source *udev_drm_source; struct { int id; int fd; } drm; struct gbm_device *gbm; uint32_t *crtcs; int num_crtcs; uint32_t crtc_allocator; uint32_t connector_allocator; struct tty *tty; /* we need these parameters in order to not fail drmModeAddFB2() * due to out of bounds dimensions, and then mistakenly set * sprites_are_broken: */ uint32_t min_width, max_width; uint32_t min_height, max_height; int no_addfb2; struct wl_list sprite_list; int sprites_are_broken; int sprites_hidden; int cursors_are_broken; int use_pixman; uint32_t prev_state; clockid_t clock; struct udev_input input; }; struct drm_mode { struct weston_mode base; drmModeModeInfo mode_info; }; struct drm_output; struct drm_fb { struct drm_output *output; uint32_t fb_id, stride, handle, size; int fd; int is_client_buffer; struct weston_buffer_reference buffer_ref; /* Used by gbm fbs */ struct gbm_bo *bo; /* Used by dumb fbs */ void *map; }; struct drm_edid { char eisa_id[13]; char monitor_name[13]; char pnp_id[5]; char serial_number[13]; }; struct drm_output { struct weston_output base; uint32_t crtc_id; int pipe; uint32_t connector_id; drmModeCrtcPtr original_crtc; struct drm_edid edid; drmModePropertyPtr dpms_prop; int vblank_pending; int page_flip_pending; struct gbm_surface *surface; struct gbm_bo *cursor_bo[2]; struct weston_plane cursor_plane; struct weston_plane fb_plane; struct weston_surface *cursor_surface; int current_cursor; struct drm_fb *current, *next; struct backlight *backlight; struct drm_fb *dumb[2]; pixman_image_t *image[2]; int current_image; pixman_region32_t previous_damage; }; /* * An output has a primary display plane plus zero or more sprites for * blending display contents. */ struct drm_sprite { struct wl_list link; struct weston_plane plane; struct drm_fb *current, *next; struct drm_output *output; struct drm_compositor *compositor; uint32_t possible_crtcs; uint32_t plane_id; uint32_t count_formats; int32_t src_x, src_y; uint32_t src_w, src_h; uint32_t dest_x, dest_y; uint32_t dest_w, dest_h; uint32_t formats[]; }; static const char default_seat[] = "seat0"; static void drm_output_set_cursor(struct drm_output *output); static int drm_sprite_crtc_supported(struct weston_output *output_base, uint32_t supported) { struct weston_compositor *ec = output_base->compositor; struct drm_compositor *c =(struct drm_compositor *) ec; struct drm_output *output = (struct drm_output *) output_base; int crtc; for (crtc = 0; crtc < c->num_crtcs; crtc++) { if (c->crtcs[crtc] != output->crtc_id) continue; if (supported & (1 << crtc)) return -1; } return 0; } static void drm_fb_destroy_callback(struct gbm_bo *bo, void *data) { struct drm_fb *fb = data; struct gbm_device *gbm = gbm_bo_get_device(bo); if (fb->fb_id) drmModeRmFB(gbm_device_get_fd(gbm), fb->fb_id); weston_buffer_reference(&fb->buffer_ref, NULL); free(data); } static struct drm_fb * drm_fb_create_dumb(struct drm_compositor *ec, unsigned width, unsigned height) { struct drm_fb *fb; int ret; struct drm_mode_create_dumb create_arg; struct drm_mode_destroy_dumb destroy_arg; struct drm_mode_map_dumb map_arg; fb = calloc(1, sizeof *fb); if (!fb) return NULL; memset(&create_arg, 0, sizeof create_arg); create_arg.bpp = 32; create_arg.width = width; create_arg.height = height; ret = drmIoctl(ec->drm.fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_arg); if (ret) goto err_fb; fb->handle = create_arg.handle; fb->stride = create_arg.pitch; fb->size = create_arg.size; fb->fd = ec->drm.fd; ret = drmModeAddFB(ec->drm.fd, width, height, 24, 32, fb->stride, fb->handle, &fb->fb_id); if (ret) goto err_bo; memset(&map_arg, 0, sizeof map_arg); map_arg.handle = fb->handle; ret = drmIoctl(fb->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg); if (ret) goto err_add_fb; fb->map = mmap(0, fb->size, PROT_WRITE, MAP_SHARED, ec->drm.fd, map_arg.offset); if (fb->map == MAP_FAILED) goto err_add_fb; return fb; err_add_fb: drmModeRmFB(ec->drm.fd, fb->fb_id); err_bo: memset(&destroy_arg, 0, sizeof(destroy_arg)); destroy_arg.handle = create_arg.handle; drmIoctl(ec->drm.fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg); err_fb: free(fb); return NULL; } static void drm_fb_destroy_dumb(struct drm_fb *fb) { struct drm_mode_destroy_dumb destroy_arg; if (!fb->map) return; if (fb->fb_id) drmModeRmFB(fb->fd, fb->fb_id); weston_buffer_reference(&fb->buffer_ref, NULL); munmap(fb->map, fb->size); memset(&destroy_arg, 0, sizeof(destroy_arg)); destroy_arg.handle = fb->handle; drmIoctl(fb->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg); free(fb); } static struct drm_fb * drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_compositor *compositor, uint32_t format) { struct drm_fb *fb = gbm_bo_get_user_data(bo); uint32_t width, height; uint32_t handles[4], pitches[4], offsets[4]; int ret; if (fb) return fb; fb = calloc(1, sizeof *fb); if (!fb) return NULL; fb->bo = bo; width = gbm_bo_get_width(bo); height = gbm_bo_get_height(bo); fb->stride = gbm_bo_get_stride(bo); fb->handle = gbm_bo_get_handle(bo).u32; fb->size = fb->stride * height; fb->fd = compositor->drm.fd; if (compositor->min_width > width || width > compositor->max_width || compositor->min_height > height || height > compositor->max_height) { weston_log("bo geometry out of bounds\n"); goto err_free; } ret = -1; if (format && !compositor->no_addfb2) { handles[0] = fb->handle; pitches[0] = fb->stride; offsets[0] = 0; ret = drmModeAddFB2(compositor->drm.fd, width, height, format, handles, pitches, offsets, &fb->fb_id, 0); if (ret) { weston_log("addfb2 failed: %m\n"); compositor->no_addfb2 = 1; compositor->sprites_are_broken = 1; } } if (ret) ret = drmModeAddFB(compositor->drm.fd, width, height, 24, 32, fb->stride, fb->handle, &fb->fb_id); if (ret) { weston_log("failed to create kms fb: %m\n"); goto err_free; } gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback); return fb; err_free: free(fb); return NULL; } static void drm_fb_set_buffer(struct drm_fb *fb, struct weston_buffer *buffer) { assert(fb->buffer_ref.buffer == NULL); fb->is_client_buffer = 1; weston_buffer_reference(&fb->buffer_ref, buffer); } static void drm_output_release_fb(struct drm_output *output, struct drm_fb *fb) { if (!fb) return; if (fb->map && (fb != output->dumb[0] && fb != output->dumb[1])) { drm_fb_destroy_dumb(fb); } else if (fb->bo) { if (fb->is_client_buffer) gbm_bo_destroy(fb->bo); else gbm_surface_release_buffer(output->surface, output->current->bo); } } static uint32_t drm_output_check_scanout_format(struct drm_output *output, struct weston_surface *es, struct gbm_bo *bo) { uint32_t format; pixman_region32_t r; format = gbm_bo_get_format(bo); switch (format) { case GBM_FORMAT_XRGB8888: return format; case GBM_FORMAT_ARGB8888: /* We can only scanout an ARGB buffer if the surface's * opaque region covers the whole output */ pixman_region32_init(&r); pixman_region32_subtract(&r, &output->base.region, &es->opaque); if (!pixman_region32_not_empty(&r)) format = GBM_FORMAT_XRGB8888; else format = 0; pixman_region32_fini(&r); return format; default: return 0; } } static struct weston_plane * drm_output_prepare_scanout_surface(struct weston_output *_output, struct weston_surface *es) { struct drm_output *output = (struct drm_output *) _output; struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; struct weston_buffer *buffer = es->buffer_ref.buffer; struct gbm_bo *bo; uint32_t format; if (es->geometry.x != output->base.x || es->geometry.y != output->base.y || buffer == NULL || c->gbm == NULL || buffer->width != output->base.current->width || buffer->height != output->base.current->height || output->base.transform != es->buffer_transform || es->transform.enabled) return NULL; bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER, buffer, GBM_BO_USE_SCANOUT); /* Unable to use the buffer for scanout */ if (!bo) return NULL; format = drm_output_check_scanout_format(output, es, bo); if (format == 0) { gbm_bo_destroy(bo); return NULL; } output->next = drm_fb_get_from_bo(bo, c, format); if (!output->next) { gbm_bo_destroy(bo); return NULL; } drm_fb_set_buffer(output->next, buffer); return &output->fb_plane; } static void drm_output_render_gl(struct drm_output *output, pixman_region32_t *damage) { struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; struct gbm_bo *bo; c->base.renderer->repaint_output(&output->base, damage); bo = gbm_surface_lock_front_buffer(output->surface); if (!bo) { weston_log("failed to lock front buffer: %m\n"); return; } output->next = drm_fb_get_from_bo(bo, c, GBM_FORMAT_XRGB8888); if (!output->next) { weston_log("failed to get drm_fb for bo\n"); gbm_surface_release_buffer(output->surface, bo); return; } } static void drm_output_render_pixman(struct drm_output *output, pixman_region32_t *damage) { struct weston_compositor *ec = output->base.compositor; pixman_region32_t total_damage, previous_damage; pixman_region32_init(&total_damage); pixman_region32_init(&previous_damage); pixman_region32_copy(&previous_damage, damage); pixman_region32_union(&total_damage, damage, &output->previous_damage); pixman_region32_copy(&output->previous_damage, &previous_damage); output->current_image ^= 1; output->next = output->dumb[output->current_image]; pixman_renderer_output_set_buffer(&output->base, output->image[output->current_image]); ec->renderer->repaint_output(&output->base, &total_damage); pixman_region32_fini(&total_damage); pixman_region32_fini(&previous_damage); } static void drm_output_render(struct drm_output *output, pixman_region32_t *damage) { struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; if (c->use_pixman) drm_output_render_pixman(output, damage); else drm_output_render_gl(output, damage); pixman_region32_subtract(&c->base.primary_plane.damage, &c->base.primary_plane.damage, damage); } static void drm_output_set_gamma(struct weston_output *output_base, uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b) { int rc; struct drm_output *output = (struct drm_output *) output_base; struct drm_compositor *compositor = (struct drm_compositor *) output->base.compositor; /* check */ if (output_base->gamma_size != size) return; if (!output->original_crtc) return; rc = drmModeCrtcSetGamma(compositor->drm.fd, output->crtc_id, size, r, g, b); if (rc) weston_log("set gamma failed: %m\n"); } static void drm_output_repaint(struct weston_output *output_base, pixman_region32_t *damage) { struct drm_output *output = (struct drm_output *) output_base; struct drm_compositor *compositor = (struct drm_compositor *) output->base.compositor; struct drm_sprite *s; struct drm_mode *mode; int ret = 0; if (!output->next) drm_output_render(output, damage); if (!output->next) return; mode = container_of(output->base.current, struct drm_mode, base); if (!output->current) { ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id, output->next->fb_id, 0, 0, &output->connector_id, 1, &mode->mode_info); if (ret) { weston_log("set mode failed: %m\n"); return; } output_base->set_dpms(output_base, WESTON_DPMS_ON); } if (drmModePageFlip(compositor->drm.fd, output->crtc_id, output->next->fb_id, DRM_MODE_PAGE_FLIP_EVENT, output) < 0) { weston_log("queueing pageflip failed: %m\n"); return; } output->page_flip_pending = 1; drm_output_set_cursor(output); /* * Now, update all the sprite surfaces */ wl_list_for_each(s, &compositor->sprite_list, link) { uint32_t flags = 0, fb_id = 0; drmVBlank vbl = { .request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT, .request.sequence = 1, }; if ((!s->current && !s->next) || !drm_sprite_crtc_supported(output_base, s->possible_crtcs)) continue; if (s->next && !compositor->sprites_hidden) fb_id = s->next->fb_id; ret = drmModeSetPlane(compositor->drm.fd, s->plane_id, output->crtc_id, fb_id, flags, s->dest_x, s->dest_y, s->dest_w, s->dest_h, s->src_x, s->src_y, s->src_w, s->src_h); if (ret) weston_log("setplane failed: %d: %s\n", ret, strerror(errno)); if (output->pipe > 0) vbl.request.type |= DRM_VBLANK_SECONDARY; /* * Queue a vblank signal so we know when the surface * becomes active on the display or has been replaced. */ vbl.request.signal = (unsigned long)s; ret = drmWaitVBlank(compositor->drm.fd, &vbl); if (ret) { weston_log("vblank event request failed: %d: %s\n", ret, strerror(errno)); } s->output = output; output->vblank_pending = 1; } return; } static void drm_output_start_repaint_loop(struct weston_output *output_base) { struct drm_output *output = (struct drm_output *) output_base; struct drm_compositor *compositor = (struct drm_compositor *) output_base->compositor; uint32_t fb_id; struct timespec ts; if (!output->current) { /* We can't page flip if there's no mode set */ uint32_t msec; clock_gettime(compositor->clock, &ts); msec = ts.tv_sec * 1000 + ts.tv_nsec / 1000000; weston_output_finish_frame(output_base, msec); return; } fb_id = output->current->fb_id; if (drmModePageFlip(compositor->drm.fd, output->crtc_id, fb_id, DRM_MODE_PAGE_FLIP_EVENT, output) < 0) { weston_log("queueing pageflip failed: %m\n"); return; } } static void vblank_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data) { struct drm_sprite *s = (struct drm_sprite *)data; struct drm_output *output = s->output; uint32_t msecs; output->vblank_pending = 0; drm_output_release_fb(output, s->current); s->current = s->next; s->next = NULL; if (!output->page_flip_pending) { msecs = sec * 1000 + usec / 1000; weston_output_finish_frame(&output->base, msecs); } } static void page_flip_handler(int fd, unsigned int frame, unsigned int sec, unsigned int usec, void *data) { struct drm_output *output = (struct drm_output *) data; uint32_t msecs; /* We don't set page_flip_pending on start_repaint_loop, in that case * we just want to page flip to the current buffer to get an accurate * timestamp */ if (output->page_flip_pending) { drm_output_release_fb(output, output->current); output->current = output->next; output->next = NULL; } output->page_flip_pending = 0; if (!output->vblank_pending) { msecs = sec * 1000 + usec / 1000; weston_output_finish_frame(&output->base, msecs); } } static uint32_t drm_output_check_sprite_format(struct drm_sprite *s, struct weston_surface *es, struct gbm_bo *bo) { uint32_t i, format; format = gbm_bo_get_format(bo); if (format == GBM_FORMAT_ARGB8888) { pixman_region32_t r; pixman_region32_init_rect(&r, 0, 0, es->geometry.width, es->geometry.height); pixman_region32_subtract(&r, &r, &es->opaque); if (!pixman_region32_not_empty(&r)) format = GBM_FORMAT_XRGB8888; pixman_region32_fini(&r); } for (i = 0; i < s->count_formats; i++) if (s->formats[i] == format) return format; return 0; } static int drm_surface_transform_supported(struct weston_surface *es) { return !es->transform.enabled || (es->transform.matrix.type < WESTON_MATRIX_TRANSFORM_ROTATE); } static struct weston_plane * drm_output_prepare_overlay_surface(struct weston_output *output_base, struct weston_surface *es) { struct weston_compositor *ec = output_base->compositor; struct drm_compositor *c =(struct drm_compositor *) ec; struct drm_sprite *s; int found = 0; struct gbm_bo *bo; pixman_region32_t dest_rect, src_rect; pixman_box32_t *box, tbox; uint32_t format; wl_fixed_t sx1, sy1, sx2, sy2; if (c->gbm == NULL) return NULL; if (es->buffer_transform != output_base->transform) return NULL; if (es->buffer_scale != output_base->scale) return NULL; if (c->sprites_are_broken) return NULL; if (es->output_mask != (1u << output_base->id)) return NULL; if (es->buffer_ref.buffer == NULL) return NULL; if (es->alpha != 1.0f) return NULL; if (wl_shm_buffer_get(es->buffer_ref.buffer->resource)) return NULL; if (!drm_surface_transform_supported(es)) return NULL; wl_list_for_each(s, &c->sprite_list, link) { if (!drm_sprite_crtc_supported(output_base, s->possible_crtcs)) continue; if (!s->next) { found = 1; break; } } /* No sprites available */ if (!found) return NULL; bo = gbm_bo_import(c->gbm, GBM_BO_IMPORT_WL_BUFFER, es->buffer_ref.buffer, GBM_BO_USE_SCANOUT); if (!bo) return NULL; format = drm_output_check_sprite_format(s, es, bo); if (format == 0) { gbm_bo_destroy(bo); return NULL; } s->next = drm_fb_get_from_bo(bo, c, format); if (!s->next) { gbm_bo_destroy(bo); return NULL; } drm_fb_set_buffer(s->next, es->buffer_ref.buffer); box = pixman_region32_extents(&es->transform.boundingbox); s->plane.x = box->x1; s->plane.y = box->y1; /* * Calculate the source & dest rects properly based on actual * position (note the caller has called weston_surface_update_transform() * for us already). */ pixman_region32_init(&dest_rect); pixman_region32_intersect(&dest_rect, &es->transform.boundingbox, &output_base->region); pixman_region32_translate(&dest_rect, -output_base->x, -output_base->y); box = pixman_region32_extents(&dest_rect); tbox = weston_transformed_rect(output_base->width, output_base->height, output_base->transform, output_base->scale, *box); s->dest_x = tbox.x1; s->dest_y = tbox.y1; s->dest_w = tbox.x2 - tbox.x1; s->dest_h = tbox.y2 - tbox.y1; pixman_region32_fini(&dest_rect); pixman_region32_init(&src_rect); pixman_region32_intersect(&src_rect, &es->transform.boundingbox, &output_base->region); box = pixman_region32_extents(&src_rect); weston_surface_from_global_fixed(es, wl_fixed_from_int(box->x1), wl_fixed_from_int(box->y1), &sx1, &sy1); weston_surface_from_global_fixed(es, wl_fixed_from_int(box->x2), wl_fixed_from_int(box->y2), &sx2, &sy2); if (sx1 < 0) sx1 = 0; if (sy1 < 0) sy1 = 0; if (sx2 > wl_fixed_from_int(es->geometry.width)) sx2 = wl_fixed_from_int(es->geometry.width); if (sy2 > wl_fixed_from_int(es->geometry.height)) sy2 = wl_fixed_from_int(es->geometry.height); tbox.x1 = sx1; tbox.y1 = sy1; tbox.x2 = sx2; tbox.y2 = sy2; tbox = weston_transformed_rect(wl_fixed_from_int(es->geometry.width), wl_fixed_from_int(es->geometry.height), es->buffer_transform, es->buffer_scale, tbox); s->src_x = tbox.x1 << 8; s->src_y = tbox.y1 << 8; s->src_w = (tbox.x2 - tbox.x1) << 8; s->src_h = (tbox.y2 - tbox.y1) << 8; pixman_region32_fini(&src_rect); return &s->plane; } static struct weston_plane * drm_output_prepare_cursor_surface(struct weston_output *output_base, struct weston_surface *es) { struct drm_compositor *c = (struct drm_compositor *) output_base->compositor; struct drm_output *output = (struct drm_output *) output_base; if (c->gbm == NULL) return NULL; if (output->base.transform != WL_OUTPUT_TRANSFORM_NORMAL) return NULL; if (output->cursor_surface) return NULL; if (es->output_mask != (1u << output_base->id)) return NULL; if (c->cursors_are_broken) return NULL; if (es->buffer_ref.buffer == NULL || !wl_shm_buffer_get(es->buffer_ref.buffer->resource) || es->geometry.width > 64 || es->geometry.height > 64) return NULL; output->cursor_surface = es; return &output->cursor_plane; } static void drm_output_set_cursor(struct drm_output *output) { struct weston_surface *es = output->cursor_surface; struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; EGLint handle, stride; struct gbm_bo *bo; uint32_t buf[64 * 64]; unsigned char *s; int i, x, y; output->cursor_surface = NULL; if (es == NULL) { drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0); return; } if (es->buffer_ref.buffer && pixman_region32_not_empty(&output->cursor_plane.damage)) { pixman_region32_fini(&output->cursor_plane.damage); pixman_region32_init(&output->cursor_plane.damage); output->current_cursor ^= 1; bo = output->cursor_bo[output->current_cursor]; memset(buf, 0, sizeof buf); stride = wl_shm_buffer_get_stride(es->buffer_ref.buffer->shm_buffer); s = wl_shm_buffer_get_data(es->buffer_ref.buffer->shm_buffer); for (i = 0; i < es->geometry.height; i++) memcpy(buf + i * 64, s + i * stride, es->geometry.width * 4); if (gbm_bo_write(bo, buf, sizeof buf) < 0) weston_log("failed update cursor: %m\n"); handle = gbm_bo_get_handle(bo).s32; if (drmModeSetCursor(c->drm.fd, output->crtc_id, handle, 64, 64)) { weston_log("failed to set cursor: %m\n"); c->cursors_are_broken = 1; } } x = (es->geometry.x - output->base.x) * output->base.scale; y = (es->geometry.y - output->base.y) * output->base.scale; if (output->cursor_plane.x != x || output->cursor_plane.y != y) { if (drmModeMoveCursor(c->drm.fd, output->crtc_id, x, y)) { weston_log("failed to move cursor: %m\n"); c->cursors_are_broken = 1; } output->cursor_plane.x = x; output->cursor_plane.y = y; } } static void drm_assign_planes(struct weston_output *output) { struct drm_compositor *c = (struct drm_compositor *) output->compositor; struct weston_surface *es, *next; pixman_region32_t overlap, surface_overlap; struct weston_plane *primary, *next_plane; /* * Find a surface for each sprite in the output using some heuristics: * 1) size * 2) frequency of update * 3) opacity (though some hw might support alpha blending) * 4) clipping (this can be fixed with color keys) * * The idea is to save on blitting since this should save power. * If we can get a large video surface on the sprite for example, * the main display surface may not need to update at all, and * the client buffer can be used directly for the sprite surface * as we do for flipping full screen surfaces. */ pixman_region32_init(&overlap); primary = &c->base.primary_plane; wl_list_for_each_safe(es, next, &c->base.surface_list, link) { /* test whether this buffer can ever go into a plane: * non-shm, or small enough to be a cursor */ if ((es->buffer_ref.buffer && !wl_shm_buffer_get(es->buffer_ref.buffer->resource)) || (es->geometry.width <= 64 && es->geometry.height <= 64)) es->keep_buffer = 1; else es->keep_buffer = 0; pixman_region32_init(&surface_overlap); pixman_region32_intersect(&surface_overlap, &overlap, &es->transform.boundingbox); next_plane = NULL; if (pixman_region32_not_empty(&surface_overlap)) next_plane = primary; if (next_plane == NULL) next_plane = drm_output_prepare_cursor_surface(output, es); if (next_plane == NULL) next_plane = drm_output_prepare_scanout_surface(output, es); if (next_plane == NULL) next_plane = drm_output_prepare_overlay_surface(output, es); if (next_plane == NULL) next_plane = primary; weston_surface_move_to_plane(es, next_plane); if (next_plane == primary) pixman_region32_union(&overlap, &overlap, &es->transform.boundingbox); pixman_region32_fini(&surface_overlap); } pixman_region32_fini(&overlap); } static void drm_output_fini_pixman(struct drm_output *output); static void drm_output_destroy(struct weston_output *output_base) { struct drm_output *output = (struct drm_output *) output_base; struct drm_compositor *c = (struct drm_compositor *) output->base.compositor; drmModeCrtcPtr origcrtc = output->original_crtc; if (output->backlight) backlight_destroy(output->backlight); drmModeFreeProperty(output->dpms_prop); /* Turn off hardware cursor */ drmModeSetCursor(c->drm.fd, output->crtc_id, 0, 0, 0); /* Restore original CRTC state */ drmModeSetCrtc(c->drm.fd, origcrtc->crtc_id, origcrtc->buffer_id, origcrtc->x, origcrtc->y, &output->connector_id, 1, &origcrtc->mode); drmModeFreeCrtc(origcrtc); c->crtc_allocator &= ~(1 << output->crtc_id); c->connector_allocator &= ~(1 << output->connector_id); if (c->use_pixman) { drm_output_fini_pixman(output); } else { gl_renderer_output_destroy(output_base); gbm_surface_destroy(output->surface); } weston_plane_release(&output->fb_plane); weston_plane_release(&output->cursor_plane); weston_output_destroy(&output->base); wl_list_remove(&output->base.link); free(output); } static struct drm_mode * choose_mode (struct drm_output *output, struct weston_mode *target_mode) { struct drm_mode *tmp_mode = NULL, *mode; if (output->base.current->width == target_mode->width && output->base.current->height == target_mode->height && (output->base.current->refresh == target_mode->refresh || target_mode->refresh == 0)) return (struct drm_mode *)output->base.current; wl_list_for_each(mode, &output->base.mode_list, base.link) { if (mode->mode_info.hdisplay == target_mode->width && mode->mode_info.vdisplay == target_mode->height) { if (mode->mode_info.vrefresh == target_mode->refresh || target_mode->refresh == 0) { return mode; } else if (!tmp_mode) tmp_mode = mode; } } return tmp_mode; } static int drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec); static int drm_output_init_pixman(struct drm_output *output, struct drm_compositor *c); static int drm_output_switch_mode(struct weston_output *output_base, struct weston_mode *mode) { struct drm_output *output; struct drm_mode *drm_mode; struct drm_compositor *ec; if (output_base == NULL) { weston_log("output is NULL.\n"); return -1; } if (mode == NULL) { weston_log("mode is NULL.\n"); return -1; } ec = (struct drm_compositor *)output_base->compositor; output = (struct drm_output *)output_base; drm_mode = choose_mode (output, mode); if (!drm_mode) { weston_log("%s, invalid resolution:%dx%d\n", __func__, mode->width, mode->height); return -1; } if (&drm_mode->base == output->base.current) return 0; output->base.current->flags = 0; output->base.current = &drm_mode->base; output->base.current->flags = WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED; /* reset rendering stuff. */ drm_output_release_fb(output, output->current); drm_output_release_fb(output, output->next); output->current = output->next = NULL; if (ec->use_pixman) { drm_output_fini_pixman(output); if (drm_output_init_pixman(output, ec) < 0) { weston_log("failed to init output pixman state with " "new mode\n"); return -1; } } else { gl_renderer_output_destroy(&output->base); gbm_surface_destroy(output->surface); if (drm_output_init_egl(output, ec) < 0) { weston_log("failed to init output egl state with " "new mode"); return -1; } } return 0; } static int on_drm_input(int fd, uint32_t mask, void *data) { drmEventContext evctx; memset(&evctx, 0, sizeof evctx); evctx.version = DRM_EVENT_CONTEXT_VERSION; evctx.page_flip_handler = page_flip_handler; evctx.vblank_handler = vblank_handler; drmHandleEvent(fd, &evctx); return 1; } static int init_drm(struct drm_compositor *ec, struct udev_device *device) { const char *filename, *sysnum; uint64_t cap; int fd, ret; sysnum = udev_device_get_sysnum(device); if (sysnum) ec->drm.id = atoi(sysnum); if (!sysnum || ec->drm.id < 0) { weston_log("cannot get device sysnum\n"); return -1; } filename = udev_device_get_devnode(device); fd = open(filename, O_RDWR | O_CLOEXEC); if (fd < 0) { /* Probably permissions error */ weston_log("couldn't open %s, skipping\n", udev_device_get_devnode(device)); return -1; } weston_log("using %s\n", filename); ec->drm.fd = fd; ret = drmGetCap(fd, DRM_CAP_TIMESTAMP_MONOTONIC, &cap); if (ret == 0 && cap == 1) ec->clock = CLOCK_MONOTONIC; else ec->clock = CLOCK_REALTIME; return 0; } static int init_egl(struct drm_compositor *ec) { ec->gbm = gbm_create_device(ec->drm.fd); if (!ec->gbm) return -1; if (gl_renderer_create(&ec->base, ec->gbm, gl_renderer_opaque_attribs, NULL) < 0) { gbm_device_destroy(ec->gbm); return -1; } return 0; } static int init_pixman(struct drm_compositor *ec) { return pixman_renderer_init(&ec->base); } static struct drm_mode * drm_output_add_mode(struct drm_output *output, drmModeModeInfo *info) { struct drm_mode *mode; uint64_t refresh; mode = malloc(sizeof *mode); if (mode == NULL) return NULL; mode->base.flags = 0; mode->base.width = info->hdisplay; mode->base.height = info->vdisplay; /* Calculate higher precision (mHz) refresh rate */ refresh = (info->clock * 1000000LL / info->htotal + info->vtotal / 2) / info->vtotal; if (info->flags & DRM_MODE_FLAG_INTERLACE) refresh *= 2; if (info->flags & DRM_MODE_FLAG_DBLSCAN) refresh /= 2; if (info->vscan > 1) refresh /= info->vscan; mode->base.refresh = refresh; mode->mode_info = *info; if (info->type & DRM_MODE_TYPE_PREFERRED) mode->base.flags |= WL_OUTPUT_MODE_PREFERRED; wl_list_insert(output->base.mode_list.prev, &mode->base.link); return mode; } static int drm_subpixel_to_wayland(int drm_value) { switch (drm_value) { default: case DRM_MODE_SUBPIXEL_UNKNOWN: return WL_OUTPUT_SUBPIXEL_UNKNOWN; case DRM_MODE_SUBPIXEL_NONE: return WL_OUTPUT_SUBPIXEL_NONE; case DRM_MODE_SUBPIXEL_HORIZONTAL_RGB: return WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB; case DRM_MODE_SUBPIXEL_HORIZONTAL_BGR: return WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR; case DRM_MODE_SUBPIXEL_VERTICAL_RGB: return WL_OUTPUT_SUBPIXEL_VERTICAL_RGB; case DRM_MODE_SUBPIXEL_VERTICAL_BGR: return WL_OUTPUT_SUBPIXEL_VERTICAL_BGR; } } /* returns a value between 0-255 range, where higher is brighter */ static uint32_t drm_get_backlight(struct drm_output *output) { long brightness, max_brightness, norm; brightness = backlight_get_brightness(output->backlight); max_brightness = backlight_get_max_brightness(output->backlight); /* convert it on a scale of 0 to 255 */ norm = (brightness * 255)/(max_brightness); return (uint32_t) norm; } /* values accepted are between 0-255 range */ static void drm_set_backlight(struct weston_output *output_base, uint32_t value) { struct drm_output *output = (struct drm_output *) output_base; long max_brightness, new_brightness; if (!output->backlight) return; if (value > 255) return; max_brightness = backlight_get_max_brightness(output->backlight); /* get denormalized value */ new_brightness = (value * max_brightness) / 255; backlight_set_brightness(output->backlight, new_brightness); } static drmModePropertyPtr drm_get_prop(int fd, drmModeConnectorPtr connector, const char *name) { drmModePropertyPtr props; int i; for (i = 0; i < connector->count_props; i++) { props = drmModeGetProperty(fd, connector->props[i]); if (!props) continue; if (!strcmp(props->name, name)) return props; drmModeFreeProperty(props); } return NULL; } static void drm_set_dpms(struct weston_output *output_base, enum dpms_enum level) { struct drm_output *output = (struct drm_output *) output_base; struct weston_compositor *ec = output_base->compositor; struct drm_compositor *c = (struct drm_compositor *) ec; if (!output->dpms_prop) return; drmModeConnectorSetProperty(c->drm.fd, output->connector_id, output->dpms_prop->prop_id, level); } static const char *connector_type_names[] = { "None", "VGA", "DVI", "DVI", "DVI", "Composite", "TV", "LVDS", "CTV", "DIN", "DP", "HDMI", "HDMI", "TV", "eDP", }; static int find_crtc_for_connector(struct drm_compositor *ec, drmModeRes *resources, drmModeConnector *connector) { drmModeEncoder *encoder; uint32_t possible_crtcs; int i, j; for (j = 0; j < connector->count_encoders; j++) { encoder = drmModeGetEncoder(ec->drm.fd, connector->encoders[j]); if (encoder == NULL) { weston_log("Failed to get encoder.\n"); return -1; } possible_crtcs = encoder->possible_crtcs; drmModeFreeEncoder(encoder); for (i = 0; i < resources->count_crtcs; i++) { if (possible_crtcs & (1 << i) && !(ec->crtc_allocator & (1 << resources->crtcs[i]))) return i; } } return -1; } /* Init output state that depends on gl or gbm */ static int drm_output_init_egl(struct drm_output *output, struct drm_compositor *ec) { int i, flags; output->surface = gbm_surface_create(ec->gbm, output->base.current->width, output->base.current->height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING); if (!output->surface) { weston_log("failed to create gbm surface\n"); return -1; } if (gl_renderer_output_create(&output->base, output->surface) < 0) { weston_log("failed to create gl renderer output state\n"); gbm_surface_destroy(output->surface); return -1; } flags = GBM_BO_USE_CURSOR_64X64 | GBM_BO_USE_WRITE; for (i = 0; i < 2; i++) { if (output->cursor_bo[i]) continue; output->cursor_bo[i] = gbm_bo_create(ec->gbm, 64, 64, GBM_FORMAT_ARGB8888, flags); } if (output->cursor_bo[0] == NULL || output->cursor_bo[1] == NULL) { weston_log("cursor buffers unavailable, using gl cursors\n"); ec->cursors_are_broken = 1; } return 0; } static int drm_output_init_pixman(struct drm_output *output, struct drm_compositor *c) { int w = output->base.current->width; int h = output->base.current->height; unsigned int i; /* FIXME error checking */ for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) { output->dumb[i] = drm_fb_create_dumb(c, w, h); if (!output->dumb[i]) goto err; output->image[i] = pixman_image_create_bits(PIXMAN_x8r8g8b8, w, h, output->dumb[i]->map, output->dumb[i]->stride); if (!output->image[i]) goto err; } if (pixman_renderer_output_create(&output->base) < 0) goto err; pixman_region32_init_rect(&output->previous_damage, output->base.x, output->base.y, output->base.width, output->base.height); return 0; err: for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) { if (output->dumb[i]) drm_fb_destroy_dumb(output->dumb[i]); if (output->image[i]) pixman_image_unref(output->image[i]); output->dumb[i] = NULL; output->image[i] = NULL; } return -1; } static void drm_output_fini_pixman(struct drm_output *output) { unsigned int i; pixman_renderer_output_destroy(&output->base); pixman_region32_fini(&output->previous_damage); for (i = 0; i < ARRAY_LENGTH(output->dumb); i++) { drm_fb_destroy_dumb(output->dumb[i]); pixman_image_unref(output->image[i]); output->dumb[i] = NULL; output->image[i] = NULL; } } static void edid_parse_string(const uint8_t *data, char text[]) { int i; int replaced = 0; /* this is always 12 bytes, but we can't guarantee it's null * terminated or not junk. */ strncpy(text, (const char *) data, 12); /* remove insane chars */ for (i = 0; text[i] != '\0'; i++) { if (text[i] == '\n' || text[i] == '\r') { text[i] = '\0'; break; } } /* ensure string is printable */ for (i = 0; text[i] != '\0'; i++) { if (!isprint(text[i])) { text[i] = '-'; replaced++; } } /* if the string is random junk, ignore the string */ if (replaced > 4) text[0] = '\0'; } #define EDID_DESCRIPTOR_ALPHANUMERIC_DATA_STRING 0xfe #define EDID_DESCRIPTOR_DISPLAY_PRODUCT_NAME 0xfc #define EDID_DESCRIPTOR_DISPLAY_PRODUCT_SERIAL_NUMBER 0xff #define EDID_OFFSET_DATA_BLOCKS 0x36 #define EDID_OFFSET_LAST_BLOCK 0x6c #define EDID_OFFSET_PNPID 0x08 #define EDID_OFFSET_SERIAL 0x0c static int edid_parse(struct drm_edid *edid, const uint8_t *data, size_t length) { int i; uint32_t serial_number; /* check header */ if (length < 128) return -1; if (data[0] != 0x00 || data[1] != 0xff) return -1; /* decode the PNP ID from three 5 bit words packed into 2 bytes * /--08--\/--09--\ * 7654321076543210 * |\---/\---/\---/ * R C1 C2 C3 */ edid->pnp_id[0] = 'A' + ((data[EDID_OFFSET_PNPID + 0] & 0x7c) / 4) - 1; edid->pnp_id[1] = 'A' + ((data[EDID_OFFSET_PNPID + 0] & 0x3) * 8) + ((data[EDID_OFFSET_PNPID + 1] & 0xe0) / 32) - 1; edid->pnp_id[2] = 'A' + (data[EDID_OFFSET_PNPID + 1] & 0x1f) - 1; edid->pnp_id[3] = '\0'; /* maybe there isn't a ASCII serial number descriptor, so use this instead */ serial_number = (uint32_t) data[EDID_OFFSET_SERIAL + 0]; serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 1] * 0x100; serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 2] * 0x10000; serial_number += (uint32_t) data[EDID_OFFSET_SERIAL + 3] * 0x1000000; if (serial_number > 0) sprintf(edid->serial_number, "%lu", (unsigned long) serial_number); /* parse EDID data */ for (i = EDID_OFFSET_DATA_BLOCKS; i <= EDID_OFFSET_LAST_BLOCK; i += 18) { /* ignore pixel clock data */ if (data[i] != 0) continue; if (data[i+2] != 0) continue; /* any useful blocks? */ if (data[i+3] == EDID_DESCRIPTOR_DISPLAY_PRODUCT_NAME) { edid_parse_string(&data[i+5], edid->monitor_name); } else if (data[i+3] == EDID_DESCRIPTOR_DISPLAY_PRODUCT_SERIAL_NUMBER) { edid_parse_string(&data[i+5], edid->serial_number); } else if (data[i+3] == EDID_DESCRIPTOR_ALPHANUMERIC_DATA_STRING) { edid_parse_string(&data[i+5], edid->eisa_id); } } return 0; } static void find_and_parse_output_edid(struct drm_compositor *ec, struct drm_output *output, drmModeConnector *connector) { drmModePropertyBlobPtr edid_blob = NULL; drmModePropertyPtr property; int i; int rc; for (i = 0; i < connector->count_props && !edid_blob; i++) { property = drmModeGetProperty(ec->drm.fd, connector->props[i]); if (!property) continue; if ((property->flags & DRM_MODE_PROP_BLOB) && !strcmp(property->name, "EDID")) { edid_blob = drmModeGetPropertyBlob(ec->drm.fd, connector->prop_values[i]); } drmModeFreeProperty(property); } if (!edid_blob) return; rc = edid_parse(&output->edid, edid_blob->data, edid_blob->length); if (!rc) { weston_log("EDID data '%s', '%s', '%s'\n", output->edid.pnp_id, output->edid.monitor_name, output->edid.serial_number); if (output->edid.pnp_id[0] != '\0') output->base.make = output->edid.pnp_id; if (output->edid.monitor_name[0] != '\0') output->base.model = output->edid.monitor_name; if (output->edid.serial_number[0] != '\0') output->base.serial_number = output->edid.serial_number; } drmModeFreePropertyBlob(edid_blob); } static int parse_modeline(const char *s, drmModeModeInfo *mode) { char hsync[16]; char vsync[16]; float fclock; mode->type = DRM_MODE_TYPE_USERDEF; mode->hskew = 0; mode->vscan = 0; mode->vrefresh = 0; mode->flags = 0; if (sscanf(s, "%f %hd %hd %hd %hd %hd %hd %hd %hd %15s %15s", &fclock, &mode->hdisplay, &mode->hsync_start, &mode->hsync_end, &mode->htotal, &mode->vdisplay, &mode->vsync_start, &mode->vsync_end, &mode->vtotal, hsync, vsync) != 11) return -1; mode->clock = fclock * 1000; if (strcmp(hsync, "+hsync") == 0) mode->flags |= DRM_MODE_FLAG_PHSYNC; else if (strcmp(hsync, "-hsync") == 0) mode->flags |= DRM_MODE_FLAG_NHSYNC; else return -1; if (strcmp(vsync, "+vsync") == 0) mode->flags |= DRM_MODE_FLAG_PVSYNC; else if (strcmp(vsync, "-vsync") == 0) mode->flags |= DRM_MODE_FLAG_NVSYNC; else return -1; return 0; } static uint32_t parse_transform(const char *transform, const char *output_name) { static const struct { const char *name; uint32_t token; } names[] = { { "normal", WL_OUTPUT_TRANSFORM_NORMAL }, { "90", WL_OUTPUT_TRANSFORM_90 }, { "180", WL_OUTPUT_TRANSFORM_180 }, { "270", WL_OUTPUT_TRANSFORM_270 }, { "flipped", WL_OUTPUT_TRANSFORM_FLIPPED }, { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 }, { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 }, { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 }, }; unsigned int i; for (i = 0; i < ARRAY_LENGTH(names); i++) if (strcmp(names[i].name, transform) == 0) return names[i].token; weston_log("Invalid transform \"%s\" for output %s\n", transform, output_name); return WL_OUTPUT_TRANSFORM_NORMAL; } static void setup_output_seat_constraint(struct drm_compositor *ec, struct weston_output *output, const char *s) { if (strcmp(s, "") != 0) { struct udev_seat *seat; seat = udev_seat_get_named(&ec->base, s); if (seat) seat->base.output = output; if (seat && seat->base.pointer) weston_pointer_clamp(seat->base.pointer, &seat->base.pointer->x, &seat->base.pointer->y); } } static int create_output_for_connector(struct drm_compositor *ec, drmModeRes *resources, drmModeConnector *connector, int x, int y, struct udev_device *drm_device) { struct drm_output *output; struct drm_mode *drm_mode, *next, *preferred, *current, *configured; struct weston_mode *m; struct weston_config_section *section; drmModeEncoder *encoder; drmModeModeInfo crtc_mode, modeline; drmModeCrtc *crtc; int i, width, height, scale; char name[32], *s; const char *type_name; enum output_config config; uint32_t transform; i = find_crtc_for_connector(ec, resources, connector); if (i < 0) { weston_log("No usable crtc/encoder pair for connector.\n"); return -1; } output = malloc(sizeof *output); if (output == NULL) return -1; memset(output, 0, sizeof *output); output->base.subpixel = drm_subpixel_to_wayland(connector->subpixel); output->base.make = "unknown"; output->base.model = "unknown"; output->base.serial_number = "unknown"; wl_list_init(&output->base.mode_list); if (connector->connector_type < ARRAY_LENGTH(connector_type_names)) type_name = connector_type_names[connector->connector_type]; else type_name = "UNKNOWN"; snprintf(name, 32, "%s%d", type_name, connector->connector_type_id); output->base.name = strdup(name); section = weston_config_get_section(ec->base.config, "output", "name", output->base.name); weston_config_section_get_string(section, "mode", &s, "preferred"); if (strcmp(s, "off") == 0) config = OUTPUT_CONFIG_OFF; else if (strcmp(s, "preferred") == 0) config = OUTPUT_CONFIG_PREFERRED; else if (strcmp(s, "current") == 0) config = OUTPUT_CONFIG_CURRENT; else if (sscanf(s, "%dx%d", &width, &height) == 2) config = OUTPUT_CONFIG_MODE; else if (parse_modeline(s, &modeline) == 0) config = OUTPUT_CONFIG_MODELINE; else { weston_log("Invalid mode \"%s\" for output %s\n", s, output->base.name); config = OUTPUT_CONFIG_PREFERRED; } free(s); weston_config_section_get_int(section, "scale", &scale, 1); weston_config_section_get_string(section, "transform", &s, "normal"); transform = parse_transform(s, output->base.name); free(s); weston_config_section_get_string(section, "seat", &s, ""); setup_output_seat_constraint(ec, &output->base, s); free(s); output->crtc_id = resources->crtcs[i]; output->pipe = i; ec->crtc_allocator |= (1 << output->crtc_id); output->connector_id = connector->connector_id; ec->connector_allocator |= (1 << output->connector_id); output->original_crtc = drmModeGetCrtc(ec->drm.fd, output->crtc_id); output->dpms_prop = drm_get_prop(ec->drm.fd, connector, "DPMS"); /* Get the current mode on the crtc that's currently driving * this connector. */ encoder = drmModeGetEncoder(ec->drm.fd, connector->encoder_id); memset(&crtc_mode, 0, sizeof crtc_mode); if (encoder != NULL) { crtc = drmModeGetCrtc(ec->drm.fd, encoder->crtc_id); drmModeFreeEncoder(encoder); if (crtc == NULL) goto err_free; if (crtc->mode_valid) crtc_mode = crtc->mode; drmModeFreeCrtc(crtc); } for (i = 0; i < connector->count_modes; i++) { drm_mode = drm_output_add_mode(output, &connector->modes[i]); if (!drm_mode) goto err_free; } if (config == OUTPUT_CONFIG_OFF) { weston_log("Disabling output %s\n", output->base.name); drmModeSetCrtc(ec->drm.fd, output->crtc_id, 0, 0, 0, 0, 0, NULL); goto err_free; } preferred = NULL; current = NULL; configured = NULL; wl_list_for_each_reverse(drm_mode, &output->base.mode_list, base.link) { if (config == OUTPUT_CONFIG_MODE && width == drm_mode->base.width && height == drm_mode->base.height) configured = drm_mode; if (!memcmp(&crtc_mode, &drm_mode->mode_info, sizeof crtc_mode)) current = drm_mode; if (drm_mode->base.flags & WL_OUTPUT_MODE_PREFERRED) preferred = drm_mode; } if (config == OUTPUT_CONFIG_MODELINE) { configured = drm_output_add_mode(output, &modeline); if (!configured) goto err_free; } if (current == NULL && crtc_mode.clock != 0) { current = drm_output_add_mode(output, &crtc_mode); if (!current) goto err_free; } if (config == OUTPUT_CONFIG_CURRENT) configured = current; if (option_current_mode && current) output->base.current = ¤t->base; else if (configured) output->base.current = &configured->base; else if (preferred) output->base.current = &preferred->base; else if (current) output->base.current = ¤t->base; if (output->base.current == NULL) { weston_log("no available modes for %s\n", output->base.name); goto err_free; } output->base.current->flags |= WL_OUTPUT_MODE_CURRENT; weston_output_init(&output->base, &ec->base, x, y, connector->mmWidth, connector->mmHeight, transform, scale); if (ec->use_pixman) { if (drm_output_init_pixman(output, ec) < 0) { weston_log("Failed to init output pixman state\n"); goto err_output; } } else if (drm_output_init_egl(output, ec) < 0) { weston_log("Failed to init output gl state\n"); goto err_output; } output->backlight = backlight_init(drm_device, connector->connector_type); if (output->backlight) { weston_log("Initialized backlight, device %s\n", output->backlight->path); output->base.set_backlight = drm_set_backlight; output->base.backlight_current = drm_get_backlight(output); } else { weston_log("Failed to initialize backlight\n"); } wl_list_insert(ec->base.output_list.prev, &output->base.link); find_and_parse_output_edid(ec, output, connector); if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) output->base.connection_internal = 1; output->base.origin = output->base.current; output->base.start_repaint_loop = drm_output_start_repaint_loop; output->base.repaint = drm_output_repaint; output->base.destroy = drm_output_destroy; output->base.assign_planes = drm_assign_planes; output->base.set_dpms = drm_set_dpms; output->base.switch_mode = drm_output_switch_mode; output->base.gamma_size = output->original_crtc->gamma_size; output->base.set_gamma = drm_output_set_gamma; weston_plane_init(&output->cursor_plane, 0, 0); weston_plane_init(&output->fb_plane, 0, 0); weston_compositor_stack_plane(&ec->base, &output->cursor_plane, NULL); weston_compositor_stack_plane(&ec->base, &output->fb_plane, &ec->base.primary_plane); weston_log("Output %s, (connector %d, crtc %d)\n", output->base.name, output->connector_id, output->crtc_id); wl_list_for_each(m, &output->base.mode_list, link) weston_log_continue(" mode %dx%d@%.1f%s%s%s\n", m->width, m->height, m->refresh / 1000.0, m->flags & WL_OUTPUT_MODE_PREFERRED ? ", preferred" : "", m->flags & WL_OUTPUT_MODE_CURRENT ? ", current" : "", connector->count_modes == 0 ? ", built-in" : ""); return 0; err_output: weston_output_destroy(&output->base); err_free: wl_list_for_each_safe(drm_mode, next, &output->base.mode_list, base.link) { wl_list_remove(&drm_mode->base.link); free(drm_mode); } drmModeFreeCrtc(output->original_crtc); ec->crtc_allocator &= ~(1 << output->crtc_id); ec->connector_allocator &= ~(1 << output->connector_id); free(output); return -1; } static void create_sprites(struct drm_compositor *ec) { struct drm_sprite *sprite; drmModePlaneRes *plane_res; drmModePlane *plane; uint32_t i; plane_res = drmModeGetPlaneResources(ec->drm.fd); if (!plane_res) { weston_log("failed to get plane resources: %s\n", strerror(errno)); return; } for (i = 0; i < plane_res->count_planes; i++) { plane = drmModeGetPlane(ec->drm.fd, plane_res->planes[i]); if (!plane) continue; sprite = malloc(sizeof(*sprite) + ((sizeof(uint32_t)) * plane->count_formats)); if (!sprite) { weston_log("%s: out of memory\n", __func__); free(plane); continue; } memset(sprite, 0, sizeof *sprite); sprite->possible_crtcs = plane->possible_crtcs; sprite->plane_id = plane->plane_id; sprite->current = NULL; sprite->next = NULL; sprite->compositor = ec; sprite->count_formats = plane->count_formats; memcpy(sprite->formats, plane->formats, plane->count_formats * sizeof(plane->formats[0])); drmModeFreePlane(plane); weston_plane_init(&sprite->plane, 0, 0); weston_compositor_stack_plane(&ec->base, &sprite->plane, &ec->base.primary_plane); wl_list_insert(&ec->sprite_list, &sprite->link); } drmModeFreePlaneResources(plane_res); } static void destroy_sprites(struct drm_compositor *compositor) { struct drm_sprite *sprite, *next; struct drm_output *output; output = container_of(compositor->base.output_list.next, struct drm_output, base.link); wl_list_for_each_safe(sprite, next, &compositor->sprite_list, link) { drmModeSetPlane(compositor->drm.fd, sprite->plane_id, output->crtc_id, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); drm_output_release_fb(output, sprite->current); drm_output_release_fb(output, sprite->next); weston_plane_release(&sprite->plane); free(sprite); } } static int create_outputs(struct drm_compositor *ec, uint32_t option_connector, struct udev_device *drm_device) { drmModeConnector *connector; drmModeRes *resources; int i; int x = 0, y = 0; resources = drmModeGetResources(ec->drm.fd); if (!resources) { weston_log("drmModeGetResources failed\n"); return -1; } ec->crtcs = calloc(resources->count_crtcs, sizeof(uint32_t)); if (!ec->crtcs) { drmModeFreeResources(resources); return -1; } ec->min_width = resources->min_width; ec->max_width = resources->max_width; ec->min_height = resources->min_height; ec->max_height = resources->max_height; ec->num_crtcs = resources->count_crtcs; memcpy(ec->crtcs, resources->crtcs, sizeof(uint32_t) * ec->num_crtcs); for (i = 0; i < resources->count_connectors; i++) { connector = drmModeGetConnector(ec->drm.fd, resources->connectors[i]); if (connector == NULL) continue; if (connector->connection == DRM_MODE_CONNECTED && (option_connector == 0 || connector->connector_id == option_connector)) { if (create_output_for_connector(ec, resources, connector, x, y, drm_device) < 0) { drmModeFreeConnector(connector); continue; } x += container_of(ec->base.output_list.prev, struct weston_output, link)->width; } drmModeFreeConnector(connector); } if (wl_list_empty(&ec->base.output_list)) { weston_log("No currently active connector found.\n"); drmModeFreeResources(resources); return -1; } drmModeFreeResources(resources); return 0; } static void update_outputs(struct drm_compositor *ec, struct udev_device *drm_device) { drmModeConnector *connector; drmModeRes *resources; struct drm_output *output, *next; int x = 0, y = 0; int x_offset = 0, y_offset = 0; uint32_t connected = 0, disconnects = 0; int i; resources = drmModeGetResources(ec->drm.fd); if (!resources) { weston_log("drmModeGetResources failed\n"); return; } /* collect new connects */ for (i = 0; i < resources->count_connectors; i++) { int connector_id = resources->connectors[i]; connector = drmModeGetConnector(ec->drm.fd, connector_id); if (connector == NULL) continue; if (connector->connection != DRM_MODE_CONNECTED) { drmModeFreeConnector(connector); continue; } connected |= (1 << connector_id); if (!(ec->connector_allocator & (1 << connector_id))) { struct weston_output *last = container_of(ec->base.output_list.prev, struct weston_output, link); /* XXX: not yet needed, we die with 0 outputs */ if (!wl_list_empty(&ec->base.output_list)) x = last->x + last->width; else x = 0; y = 0; create_output_for_connector(ec, resources, connector, x, y, drm_device); weston_log("connector %d connected\n", connector_id); } drmModeFreeConnector(connector); } drmModeFreeResources(resources); disconnects = ec->connector_allocator & ~connected; if (disconnects) { wl_list_for_each_safe(output, next, &ec->base.output_list, base.link) { if (x_offset != 0 || y_offset != 0) { weston_output_move(&output->base, output->base.x - x_offset, output->base.y - y_offset); } if (disconnects & (1 << output->connector_id)) { disconnects &= ~(1 << output->connector_id); weston_log("connector %d disconnected\n", output->connector_id); x_offset += output->base.width; drm_output_destroy(&output->base); } } } /* FIXME: handle zero outputs, without terminating */ if (ec->connector_allocator == 0) wl_display_terminate(ec->base.wl_display); } static int udev_event_is_hotplug(struct drm_compositor *ec, struct udev_device *device) { const char *sysnum; const char *val; sysnum = udev_device_get_sysnum(device); if (!sysnum || atoi(sysnum) != ec->drm.id) return 0; val = udev_device_get_property_value(device, "HOTPLUG"); if (!val) return 0; return strcmp(val, "1") == 0; } static int udev_drm_event(int fd, uint32_t mask, void *data) { struct drm_compositor *ec = data; struct udev_device *event; event = udev_monitor_receive_device(ec->udev_monitor); if (udev_event_is_hotplug(ec, event)) update_outputs(ec, event); udev_device_unref(event); return 1; } static void drm_restore(struct weston_compositor *ec) { struct drm_compositor *d = (struct drm_compositor *) ec; if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0) weston_log("failed to drop master: %m\n"); tty_reset(d->tty); } static void drm_destroy(struct weston_compositor *ec) { struct drm_compositor *d = (struct drm_compositor *) ec; udev_input_destroy(&d->input); wl_event_source_remove(d->udev_drm_source); wl_event_source_remove(d->drm_source); destroy_sprites(d); weston_compositor_shutdown(ec); ec->renderer->destroy(ec); if (d->gbm) gbm_device_destroy(d->gbm); if (weston_launcher_drm_set_master(&d->base, d->drm.fd, 0) < 0) weston_log("failed to drop master: %m\n"); tty_destroy(d->tty); free(d); } static void drm_compositor_set_modes(struct drm_compositor *compositor) { struct drm_output *output; struct drm_mode *drm_mode; int ret; wl_list_for_each(output, &compositor->base.output_list, base.link) { if (!output->current) { /* If something that would cause the output to * switch mode happened while in another vt, we * might not have a current drm_fb. In that case, * schedule a repaint and let drm_output_repaint * handle setting the mode. */ weston_output_schedule_repaint(&output->base); continue; } drm_mode = (struct drm_mode *) output->base.current; ret = drmModeSetCrtc(compositor->drm.fd, output->crtc_id, output->current->fb_id, 0, 0, &output->connector_id, 1, &drm_mode->mode_info); if (ret < 0) { weston_log( "failed to set mode %dx%d for output at %d,%d: %m\n", drm_mode->base.width, drm_mode->base.height, output->base.x, output->base.y); } } } static void vt_func(struct weston_compositor *compositor, int event) { struct drm_compositor *ec = (struct drm_compositor *) compositor; struct drm_sprite *sprite; struct drm_output *output; switch (event) { case TTY_ENTER_VT: weston_log("entering VT\n"); compositor->focus = 1; if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 1)) { weston_log("failed to set master: %m\n"); wl_display_terminate(compositor->wl_display); } compositor->state = ec->prev_state; drm_compositor_set_modes(ec); weston_compositor_damage_all(compositor); udev_input_enable(&ec->input, ec->udev); break; case TTY_LEAVE_VT: weston_log("leaving VT\n"); udev_input_disable(&ec->input); compositor->focus = 0; ec->prev_state = compositor->state; weston_compositor_offscreen(compositor); /* If we have a repaint scheduled (either from a * pending pageflip or the idle handler), make sure we * cancel that so we don't try to pageflip when we're * vt switched away. The OFFSCREEN state will prevent * further attemps at repainting. When we switch * back, we schedule a repaint, which will process * pending frame callbacks. */ wl_list_for_each(output, &ec->base.output_list, base.link) { output->base.repaint_needed = 0; drmModeSetCursor(ec->drm.fd, output->crtc_id, 0, 0, 0); } output = container_of(ec->base.output_list.next, struct drm_output, base.link); wl_list_for_each(sprite, &ec->sprite_list, link) drmModeSetPlane(ec->drm.fd, sprite->plane_id, output->crtc_id, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0) weston_log("failed to drop master: %m\n"); break; }; } static void switch_vt_binding(struct weston_seat *seat, uint32_t time, uint32_t key, void *data) { struct drm_compositor *ec = data; tty_activate_vt(ec->tty, key - KEY_F1 + 1); } /* * Find primary GPU * Some systems may have multiple DRM devices attached to a single seat. This * function loops over all devices and tries to find a PCI device with the * boot_vga sysfs attribute set to 1. * If no such device is found, the first DRM device reported by udev is used. */ static struct udev_device* find_primary_gpu(struct drm_compositor *ec, const char *seat) { struct udev_enumerate *e; struct udev_list_entry *entry; const char *path, *device_seat, *id; struct udev_device *device, *drm_device, *pci; e = udev_enumerate_new(ec->udev); udev_enumerate_add_match_subsystem(e, "drm"); udev_enumerate_add_match_sysname(e, "card[0-9]*"); udev_enumerate_scan_devices(e); drm_device = NULL; udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) { path = udev_list_entry_get_name(entry); device = udev_device_new_from_syspath(ec->udev, path); if (!device) continue; device_seat = udev_device_get_property_value(device, "ID_SEAT"); if (!device_seat) device_seat = default_seat; if (strcmp(device_seat, seat)) { udev_device_unref(device); continue; } pci = udev_device_get_parent_with_subsystem_devtype(device, "pci", NULL); if (pci) { id = udev_device_get_sysattr_value(pci, "boot_vga"); if (id && !strcmp(id, "1")) { if (drm_device) udev_device_unref(drm_device); drm_device = device; break; } } if (!drm_device) drm_device = device; else udev_device_unref(device); } udev_enumerate_unref(e); return drm_device; } static void planes_binding(struct weston_seat *seat, uint32_t time, uint32_t key, void *data) { struct drm_compositor *c = data; switch (key) { case KEY_C: c->cursors_are_broken ^= 1; break; case KEY_V: c->sprites_are_broken ^= 1; break; case KEY_O: c->sprites_hidden ^= 1; break; default: break; } } static struct weston_compositor * drm_compositor_create(struct wl_display *display, int connector, const char *seat_id, int tty, int pixman, int *argc, char *argv[], struct weston_config *config) { struct drm_compositor *ec; struct udev_device *drm_device; struct wl_event_loop *loop; const char *path; uint32_t key; weston_log("initializing drm backend\n"); ec = malloc(sizeof *ec); if (ec == NULL) return NULL; memset(ec, 0, sizeof *ec); /* KMS support for sprites is not complete yet, so disable the * functionality for now. */ ec->sprites_are_broken = 1; ec->use_pixman = pixman; if (weston_compositor_init(&ec->base, display, argc, argv, config) < 0) { weston_log("%s failed\n", __func__); goto err_base; } /* Check if we run drm-backend using weston-launch */ if (ec->base.launcher_sock == -1 && geteuid() != 0) { weston_log("fatal: drm backend should be run " "using weston-launch binary or as root\n"); goto err_compositor; } ec->udev = udev_new(); if (ec->udev == NULL) { weston_log("failed to initialize udev context\n"); goto err_compositor; } ec->base.wl_display = display; ec->tty = tty_create(&ec->base, vt_func, tty); if (!ec->tty) { weston_log("failed to initialize tty\n"); goto err_udev; } drm_device = find_primary_gpu(ec, seat_id); if (drm_device == NULL) { weston_log("no drm device found\n"); goto err_tty; } path = udev_device_get_syspath(drm_device); if (init_drm(ec, drm_device) < 0) { weston_log("failed to initialize kms\n"); goto err_udev_dev; } if (ec->use_pixman) { if (init_pixman(ec) < 0) { weston_log("failed to initialize pixman renderer\n"); goto err_udev_dev; } } else { if (init_egl(ec) < 0) { weston_log("failed to initialize egl\n"); goto err_udev_dev; } } ec->base.destroy = drm_destroy; ec->base.restore = drm_restore; ec->base.focus = 1; ec->prev_state = WESTON_COMPOSITOR_ACTIVE; for (key = KEY_F1; key < KEY_F9; key++) weston_compositor_add_key_binding(&ec->base, key, MODIFIER_CTRL | MODIFIER_ALT, switch_vt_binding, ec); wl_list_init(&ec->sprite_list); create_sprites(ec); if (create_outputs(ec, connector, drm_device) < 0) { weston_log("failed to create output for %s\n", path); goto err_sprite; } path = NULL; if (udev_input_init(&ec->input, &ec->base, ec->udev, seat_id) < 0) { weston_log("failed to create input devices\n"); goto err_sprite; } loop = wl_display_get_event_loop(ec->base.wl_display); ec->drm_source = wl_event_loop_add_fd(loop, ec->drm.fd, WL_EVENT_READABLE, on_drm_input, ec); ec->udev_monitor = udev_monitor_new_from_netlink(ec->udev, "udev"); if (ec->udev_monitor == NULL) { weston_log("failed to intialize udev monitor\n"); goto err_drm_source; } udev_monitor_filter_add_match_subsystem_devtype(ec->udev_monitor, "drm", NULL); ec->udev_drm_source = wl_event_loop_add_fd(loop, udev_monitor_get_fd(ec->udev_monitor), WL_EVENT_READABLE, udev_drm_event, ec); if (udev_monitor_enable_receiving(ec->udev_monitor) < 0) { weston_log("failed to enable udev-monitor receiving\n"); goto err_udev_monitor; } udev_device_unref(drm_device); weston_compositor_add_debug_binding(&ec->base, KEY_O, planes_binding, ec); weston_compositor_add_debug_binding(&ec->base, KEY_C, planes_binding, ec); weston_compositor_add_debug_binding(&ec->base, KEY_V, planes_binding, ec); return &ec->base; err_udev_monitor: wl_event_source_remove(ec->udev_drm_source); udev_monitor_unref(ec->udev_monitor); err_drm_source: wl_event_source_remove(ec->drm_source); udev_input_destroy(&ec->input); err_sprite: ec->base.renderer->destroy(&ec->base); gbm_device_destroy(ec->gbm); destroy_sprites(ec); err_udev_dev: udev_device_unref(drm_device); err_tty: if (weston_launcher_drm_set_master(&ec->base, ec->drm.fd, 0) < 0) weston_log("failed to drop master: %m\n"); tty_destroy(ec->tty); err_udev: udev_unref(ec->udev); err_compositor: weston_compositor_shutdown(&ec->base); err_base: free(ec); return NULL; } WL_EXPORT struct weston_compositor * backend_init(struct wl_display *display, int *argc, char *argv[], struct weston_config *config) { int connector = 0, tty = 0, use_pixman = 0; const char *seat_id = default_seat; const struct weston_option drm_options[] = { { WESTON_OPTION_INTEGER, "connector", 0, &connector }, { WESTON_OPTION_STRING, "seat", 0, &seat_id }, { WESTON_OPTION_INTEGER, "tty", 0, &tty }, { WESTON_OPTION_BOOLEAN, "current-mode", 0, &option_current_mode }, { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman }, }; parse_options(drm_options, ARRAY_LENGTH(drm_options), argc, argv); return drm_compositor_create(display, connector, seat_id, tty, use_pixman, argc, argv, config); }