static void _cogl_winsys_poll_dispatch (CoglContext *context, const CoglPollFD *poll_fds, int n_poll_fds) { CoglDisplay *display = context->display; CoglDisplayEGL *egl_display = display->winsys; CoglDisplayKMS *kms_display = egl_display->platform; CoglRenderer *renderer = display->renderer; CoglRendererEGL *egl_renderer = renderer->winsys; CoglRendererKMS *kms_renderer = egl_renderer->platform; int i; for (i = 0; i < n_poll_fds; i++) if (poll_fds[i].fd == kms_renderer->fd) { if (poll_fds[i].revents) handle_drm_event (kms_renderer); break; } if (kms_display->pending_swap_notify) { g_list_foreach (context->framebuffers, flush_pending_swap_notify_cb, NULL); kms_display->pending_swap_notify = FALSE; } }
static void dispatch_kms_events (void *user_data, int revents) { CoglRenderer *renderer = user_data; CoglRendererEGL *egl_renderer = renderer->winsys; CoglRendererKMS *kms_renderer = egl_renderer->platform; if (!revents) return; handle_drm_event (kms_renderer); }
static void _cogl_winsys_onscreen_swap_buffers (CoglOnscreen *onscreen) { CoglContext *context = COGL_FRAMEBUFFER (onscreen)->context; CoglDisplayEGL *egl_display = context->display->winsys; CoglDisplayKMS *kms_display = egl_display->platform; CoglRenderer *renderer = context->display->renderer; CoglRendererEGL *egl_renderer = renderer->winsys; CoglRendererKMS *kms_renderer = egl_renderer->platform; CoglOnscreenEGL *egl_onscreen = onscreen->winsys; CoglOnscreenKMS *kms_onscreen = egl_onscreen->platform; uint32_t handle, stride; CoglFlipKMS *flip; GList *l; /* If we already have a pending swap then block until it completes */ while (kms_onscreen->next_fb_id != 0) handle_drm_event (kms_renderer); /* First chain-up. This will call eglSwapBuffers */ parent_vtable->onscreen_swap_buffers (onscreen); /* Now we need to set the CRTC to whatever is the front buffer */ kms_onscreen->next_bo = gbm_surface_lock_front_buffer (kms_onscreen->surface); #if (COGL_VERSION_ENCODE (COGL_GBM_MAJOR, COGL_GBM_MINOR, COGL_GBM_MICRO) >= \ COGL_VERSION_ENCODE (8, 1, 0)) stride = gbm_bo_get_stride (kms_onscreen->next_bo); #else stride = gbm_bo_get_pitch (kms_onscreen->next_bo); #endif handle = gbm_bo_get_handle (kms_onscreen->next_bo).u32; if (drmModeAddFB (kms_renderer->fd, kms_display->width, kms_display->height, 24, /* depth */ 32, /* bpp */ stride, handle, &kms_onscreen->next_fb_id)) { g_warning ("Failed to create new back buffer handle: %m"); gbm_surface_release_buffer (kms_onscreen->surface, kms_onscreen->next_bo); kms_onscreen->next_bo = NULL; kms_onscreen->next_fb_id = 0; return; } /* If this is the first framebuffer to be presented then we now setup the * crtc modes... */ if (kms_display->pending_set_crtc) { setup_crtc_modes (context->display, kms_onscreen->next_fb_id); kms_display->pending_set_crtc = FALSE; } flip = g_slice_new0 (CoglFlipKMS); flip->onscreen = onscreen; for (l = kms_display->outputs; l; l = l->next) { CoglOutputKMS *output = l->data; if (drmModePageFlip (kms_renderer->fd, output->encoder->crtc_id, kms_onscreen->next_fb_id, DRM_MODE_PAGE_FLIP_EVENT, flip)) { g_warning ("Failed to flip: %m"); continue; } flip->pending++; } if (flip->pending == 0) { drmModeRmFB (kms_renderer->fd, kms_onscreen->next_fb_id); gbm_surface_release_buffer (kms_onscreen->surface, kms_onscreen->next_bo); kms_onscreen->next_bo = NULL; kms_onscreen->next_fb_id = 0; g_slice_free (CoglFlipKMS, flip); flip = NULL; } else { /* Ensure the onscreen remains valid while it has any pending flips... */ cogl_object_ref (flip->onscreen); } }