diff options
Diffstat (limited to 'backend')
| -rw-r--r-- | backend/drm/backend.c | 32 | ||||
| -rw-r--r-- | backend/drm/drm.c | 28 |
2 files changed, 60 insertions, 0 deletions
diff --git a/backend/drm/backend.c b/backend/drm/backend.c index f202d4d6..48e207c8 100644 --- a/backend/drm/backend.c +++ b/backend/drm/backend.c @@ -37,6 +37,29 @@ static struct wlr_backend_impl backend_impl = { .destroy = wlr_drm_backend_destroy }; +static void device_paused(struct wl_listener *listener, void *data) { + struct wlr_backend_state *backend = wl_container_of(listener, backend, device_paused); + + // TODO: Actually pause the renderer or something. + // We currently just expect it to fail its next pageflip. + + (void)backend; +} + +static void device_resumed(struct wl_listener *listener, void *data) { + struct wlr_backend_state *drm = wl_container_of(listener, drm, device_paused); + int *new_fd = data; + + close(drm->fd); + drm->fd = *new_fd; + drm->renderer.fd = *new_fd; + + for (size_t i = 0; i < drm->outputs->length; ++i) { + struct wlr_output_state *output = drm->outputs->items[i]; + wlr_drm_output_draw_blank(output); + } +} + struct wlr_backend *wlr_drm_backend_create(struct wl_display *display, struct wlr_session *session) { struct wlr_backend_state *state = calloc(1, sizeof(struct wlr_backend_state)); @@ -79,6 +102,15 @@ struct wlr_backend *wlr_drm_backend_create(struct wl_display *display, goto error_fd; } + wl_list_init(&state->device_paused.link); + wl_list_init(&state->device_paused.link); + + state->device_paused.notify = device_paused; + state->device_resumed.notify = device_resumed; + + wl_signal_add(&session->device_paused, &state->device_paused); + wl_signal_add(&session->device_resumed, &state->device_resumed); + // TODO: what is the difference between the per-output renderer and this // one? if (!wlr_drm_renderer_init(&state->renderer, state->fd)) { diff --git a/backend/drm/drm.c b/backend/drm/drm.c index db75853d..bd8c6506 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -474,3 +474,31 @@ void wlr_drm_output_dpms(int fd, struct wlr_output_state *output, bool screen_on DRM_MODE_DPMS_STANDBY); } } + +void wlr_drm_output_draw_blank(struct wlr_output_state *output) { + if (output->state != DRM_OUTPUT_CONNECTED) { + return; + } + + struct wlr_drm_renderer *renderer = output->renderer; + + eglMakeCurrent(renderer->egl.display, output->egl, output->egl, renderer->egl.context); + + glViewport(0, 0, output->width, output->height); + glClearColor(0.0, 0.0, 0.0, 1.0); + glClear(GL_COLOR_BUFFER_BIT); + + eglSwapBuffers(renderer->egl.display, output->egl); + + struct gbm_bo *bo = gbm_surface_lock_front_buffer(output->gbm); + uint32_t fb_id = get_fb_for_bo(renderer->fd, bo); + + drmModeSetCrtc(renderer->fd, output->crtc, fb_id, 0, 0, + &output->connector, 1, &output->wlr_output->current_mode->state->mode); + drmModePageFlip(renderer->fd, output->crtc, fb_id, + DRM_MODE_PAGE_FLIP_EVENT, output); + + gbm_surface_release_buffer(output->gbm, bo); + + wlr_log(L_INFO, "Drew blank frame"); +} |