diff options
Diffstat (limited to 'backend/drm/drm.c')
| -rw-r--r-- | backend/drm/drm.c | 28 |
1 files changed, 28 insertions, 0 deletions
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"); +} |