mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2024-11-22 07:02:28 +00:00
Changed modesetting interface.
This commit is contained in:
Scott Anderson
parent
d196a79b6c
commit
ef9768858e
@ -90,7 +90,7 @@ error_backend:
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static void free_output(void *item)
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{
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struct wlr_drm_output *out = item;
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wlr_drm_output_free(out, true);
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wlr_drm_output_cleanup(out, true);
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free(out);
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}
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@ -37,29 +37,6 @@ static const char *conn_name[] = {
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[DRM_MODE_CONNECTOR_DSI] = "DSI",
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};
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static void page_flip_handler(int fd, unsigned seq, unsigned tv_sec, unsigned tv_usec,
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void *user) {
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struct wlr_drm_output *out = user;
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struct wlr_drm_backend *backend = wl_container_of(out->renderer, backend, renderer);
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out->pageflip_pending = true;
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if (!out->cleanup) {
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wl_signal_emit(&backend->signals.output_render, out);
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}
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}
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int wlr_drm_event(int fd, uint32_t mask, void *data) {
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drmEventContext event = {
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.version = DRM_EVENT_CONTEXT_VERSION,
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.page_flip_handler = page_flip_handler,
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};
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drmHandleEvent(fd, &event);
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return 1;
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}
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bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, int fd) {
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renderer->gbm = gbm_create_device(fd);
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@ -86,6 +63,97 @@ void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer) {
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gbm_device_destroy(renderer->gbm);
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}
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static void free_fb(struct gbm_bo *bo, void *data) {
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uint32_t *id = data;
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if (id && *id) {
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drmModeRmFB(gbm_bo_get_fd(bo), *id);
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}
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free(id);
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}
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static uint32_t get_fb_for_bo(int fd, struct gbm_bo *bo) {
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uint32_t *id = gbm_bo_get_user_data(bo);
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if (id) {
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return *id;
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}
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id = calloc(1, sizeof *id);
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if (!id) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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return 0;
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}
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drmModeAddFB(fd, gbm_bo_get_width(bo), gbm_bo_get_height(bo), 24, 32,
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gbm_bo_get_stride(bo), gbm_bo_get_handle(bo).u32, id);
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gbm_bo_set_user_data(bo, id, free_fb);
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return *id;
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}
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void wlr_drm_output_begin(struct wlr_drm_output *out) {
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struct wlr_drm_renderer *renderer = out->renderer;
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eglMakeCurrent(renderer->egl.display, out->egl, out->egl, renderer->egl.context);
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}
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void wlr_drm_output_end(struct wlr_drm_output *out) {
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struct wlr_drm_renderer *renderer = out->renderer;
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eglSwapBuffers(renderer->egl.display, out->egl);
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struct gbm_bo *bo = gbm_surface_lock_front_buffer(out->gbm);
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uint32_t fb_id = get_fb_for_bo(renderer->fd, bo);
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drmModePageFlip(renderer->fd, out->crtc, fb_id, DRM_MODE_PAGE_FLIP_EVENT, out);
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gbm_surface_release_buffer(out->gbm, bo);
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out->pageflip_pending = false;
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}
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static bool display_init_renderer(struct wlr_drm_renderer *renderer,
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struct wlr_drm_output *out) {
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out->renderer = renderer;
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out->gbm = gbm_surface_create(renderer->gbm, out->width, out->height,
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GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
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if (!out->gbm) {
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wlr_log(L_ERROR, "Failed to create GBM surface for %s: %s", out->name,
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strerror(errno));
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return false;
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}
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out->egl = wlr_egl_create_surface(&renderer->egl, out->gbm);
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if (out->egl == EGL_NO_SURFACE) {
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wlr_log(L_ERROR, "Failed to create EGL surface for %s", out->name);
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return false;
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}
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// Render black frame
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eglMakeCurrent(renderer->egl.display, out->egl, out->egl, renderer->egl.context);
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glViewport(0, 0, out->width, out->height);
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glClearColor(0.0, 0.0, 0.0, 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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eglSwapBuffers(renderer->egl.display, out->egl);
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struct gbm_bo *bo = gbm_surface_lock_front_buffer(out->gbm);
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uint32_t fb_id = get_fb_for_bo(renderer->fd, bo);
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drmModeSetCrtc(renderer->fd, out->crtc, fb_id, 0, 0,
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&out->connector, 1, &out->active_mode->mode);
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drmModePageFlip(renderer->fd, out->crtc, fb_id, DRM_MODE_PAGE_FLIP_EVENT, out);
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gbm_surface_release_buffer(out->gbm, bo);
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return true;
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}
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static int find_id(const void *item, const void *cmp_to) {
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const struct wlr_drm_output *out = item;
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const uint32_t *id = cmp_to;
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@ -142,6 +210,30 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *backend) {
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if (out->state == DRM_OUTPUT_DISCONNECTED &&
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conn->connection == DRM_MODE_CONNECTED) {
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wlr_log(L_INFO, "'%s' connected", out->name);
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out->modes = malloc(sizeof(*out->modes) * conn->count_modes);
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if (!out->modes) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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goto error;
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}
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wlr_log(L_INFO, "Detected modes:");
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out->num_modes = conn->count_modes;
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for (int i = 0; i < conn->count_modes; ++i) {
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drmModeModeInfo *mode = &conn->modes[i];
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out->modes[i].width = mode->hdisplay;
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out->modes[i].height = mode->vdisplay;
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// TODO: Calculate more accurate refresh rate
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out->modes[i].rate = mode->vrefresh;
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out->modes[i].mode = *mode;
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wlr_log(L_INFO, " %"PRIu16"@%"PRIu16"@%"PRIu32,
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mode->hdisplay, mode->vdisplay,
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mode->vrefresh);
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}
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out->state = DRM_OUTPUT_NEEDS_MODESET;
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wlr_log(L_INFO, "Sending modesetting signal for '%s'", out->name);
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wl_signal_emit(&backend->signals.output_add, out);
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@ -149,138 +241,32 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *backend) {
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} else if (out->state == DRM_OUTPUT_CONNECTED &&
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conn->connection != DRM_MODE_CONNECTED) {
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out->state = DRM_OUTPUT_DISCONNECTED;
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wlr_drm_output_free(out, false);
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wlr_drm_output_cleanup(out, false);
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wlr_log(L_INFO, "Sending destruction signal for '%s'", out->name);
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wl_signal_emit(&backend->signals.output_rem, out);
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}
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error:
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drmModeFreeConnector(conn);
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}
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drmModeFreeResources(res);
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}
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static void free_fb(struct gbm_bo *bo, void *data) {
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uint32_t *id = data;
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if (id && *id) {
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drmModeRmFB(gbm_bo_get_fd(bo), *id);
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}
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free(id);
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}
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static uint32_t get_fb_for_bo(int fd, struct gbm_bo *bo) {
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uint32_t *id = gbm_bo_get_user_data(bo);
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if (id) {
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return *id;
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}
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id = calloc(1, sizeof *id);
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if (!id) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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return 0;
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}
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drmModeAddFB(fd, gbm_bo_get_width(bo), gbm_bo_get_height(bo), 24, 32,
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gbm_bo_get_stride(bo), gbm_bo_get_handle(bo).u32, id);
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gbm_bo_set_user_data(bo, id, free_fb);
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return *id;
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}
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static bool display_init_renderer(struct wlr_drm_renderer *renderer,
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struct wlr_drm_output *out) {
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out->renderer = renderer;
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out->gbm = gbm_surface_create(renderer->gbm, out->width, out->height,
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GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
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if (!out->gbm) {
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wlr_log(L_ERROR, "Failed to create GBM surface for %s: %s", out->name,
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strerror(errno));
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return false;
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}
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out->egl = wlr_egl_create_surface(&renderer->egl, out->gbm);
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if (out->egl == EGL_NO_SURFACE) {
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wlr_log(L_ERROR, "Failed to create EGL surface for %s", out->name);
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return false;
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}
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// Render black frame
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eglMakeCurrent(renderer->egl.display, out->egl, out->egl, renderer->egl.context);
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glViewport(0, 0, out->width, out->height);
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glClearColor(0.0, 0.0, 0.0, 1.0);
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glClear(GL_COLOR_BUFFER_BIT);
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eglSwapBuffers(renderer->egl.display, out->egl);
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struct gbm_bo *bo = gbm_surface_lock_front_buffer(out->gbm);
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uint32_t fb_id = get_fb_for_bo(renderer->fd, bo);
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drmModeSetCrtc(renderer->fd, out->crtc, fb_id, 0, 0,
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&out->connector, 1, out->active_mode);
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drmModePageFlip(renderer->fd, out->crtc, fb_id, DRM_MODE_PAGE_FLIP_EVENT, out);
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gbm_surface_release_buffer(out->gbm, bo);
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return true;
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}
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static drmModeModeInfo *select_mode(size_t num_modes, drmModeModeInfo modes[static num_modes],
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drmModeCrtc *old_crtc, const char *str) {
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if (strcmp(str, "preferred") == 0) {
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return &modes[0];
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}
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if (strcmp(str, "current") == 0) {
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if (!old_crtc) {
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wlr_log(L_ERROR, "Display does not have currently configured mode");
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struct wlr_drm_mode *wlr_drm_output_get_modes(struct wlr_drm_output *out, size_t *count) {
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if (out->state == DRM_OUTPUT_DISCONNECTED) {
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*count = 0;
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return NULL;
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}
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for (size_t i = 0; i < num_modes; ++i) {
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if (memcmp(&modes[i], &old_crtc->mode, sizeof modes[0]) == 0) {
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return &modes[i];
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}
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}
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// We should never get here
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assert(0);
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}
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unsigned width = 0;
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unsigned height = 0;
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unsigned rate = 0;
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int ret;
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if ((ret = sscanf(str, "%ux%u@%u", &width, &height, &rate)) != 2 && ret != 3) {
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wlr_log(L_ERROR, "Invalid modesetting string '%s'", str);
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return NULL;
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}
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for (size_t i = 0; i < num_modes; ++i) {
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if (modes[i].hdisplay == width && modes[i].vdisplay == height &&
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(!rate || modes[i].vrefresh == rate)) {
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return &modes[i];
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}
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}
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wlr_log(L_ERROR, "Unable to find mode %ux%u@%u", width, height, rate);
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return NULL;
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*count = out->num_modes;
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return out->modes;
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}
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bool wlr_drm_output_modeset(struct wlr_drm_output *out, const char *str) {
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bool wlr_drm_output_modeset(struct wlr_drm_output *out, struct wlr_drm_mode *mode) {
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struct wlr_drm_backend *backend = wl_container_of(out->renderer, backend, renderer);
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wlr_log(L_INFO, "Modesetting %s with '%s'", out->name, str);
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wlr_log(L_INFO, "Modesetting '%s' with '%ux%u@%u'", out->name, mode->width,
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mode->height, mode->rate);
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drmModeConnector *conn = drmModeGetConnector(backend->fd, out->connector);
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if (!conn) {
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@ -293,34 +279,12 @@ bool wlr_drm_output_modeset(struct wlr_drm_output *out, const char *str) {
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goto error;
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}
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out->num_modes = conn->count_modes;
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out->modes = malloc(sizeof *out->modes * out->num_modes);
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if (!out->modes) {
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wlr_log(L_ERROR, "Allocation failed: %s", strerror(errno));
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goto error;
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}
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memcpy(out->modes, conn->modes, sizeof *out->modes * out->num_modes);
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wlr_log(L_INFO, "Detected modes:");
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for (size_t i = 0; i < out->num_modes; ++i) {
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wlr_log(L_INFO, " %"PRIu16"@%"PRIu16"@%"PRIu32,
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out->modes[i].hdisplay, out->modes[i].vdisplay,
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out->modes[i].vrefresh);
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}
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drmModeEncoder *curr_enc = drmModeGetEncoder(backend->fd, conn->encoder_id);
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if (curr_enc) {
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out->old_crtc = drmModeGetCrtc(backend->fd, curr_enc->crtc_id);
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free(curr_enc);
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}
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out->active_mode = select_mode(out->num_modes, out->modes,
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out->old_crtc, str);
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if (!out->active_mode) {
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wlr_log(L_ERROR, "Failed to configure %s", out->name);
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goto error;
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}
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drmModeRes *res = drmModeGetResources(backend->fd);
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if (!res) {
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wlr_log(L_ERROR, "Failed to get DRM resources");
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@ -358,9 +322,9 @@ bool wlr_drm_output_modeset(struct wlr_drm_output *out, const char *str) {
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}
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out->state = DRM_OUTPUT_CONNECTED;
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out->width = out->active_mode->hdisplay;
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out->height = out->active_mode->vdisplay;
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out->active_mode = mode;
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out->width = mode->width;
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out->height = mode->height;
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if (!display_init_renderer(&backend->renderer, out)) {
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wlr_log(L_ERROR, "Failed to initalise renderer for %s", out->name);
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@ -369,10 +333,6 @@ bool wlr_drm_output_modeset(struct wlr_drm_output *out, const char *str) {
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drmModeFreeConnector(conn);
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wlr_log(L_INFO, "Configuring %s with mode %"PRIu16"x%"PRIu16"@%"PRIu32"",
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out->name, out->active_mode->hdisplay, out->active_mode->vdisplay,
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out->active_mode->vrefresh);
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return true;
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error:
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@ -385,58 +345,79 @@ error:
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return false;
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}
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void wlr_drm_output_free(struct wlr_drm_output *out, bool restore) {
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if (!out || out->state != DRM_OUTPUT_CONNECTED) {
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return;
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static void page_flip_handler(int fd, unsigned seq, unsigned tv_sec, unsigned tv_usec,
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void *user) {
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struct wlr_drm_output *out = user;
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struct wlr_drm_backend *backend = wl_container_of(out->renderer, backend, renderer);
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out->pageflip_pending = true;
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if (!out->cleanup) {
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wl_signal_emit(&backend->signals.output_render, out);
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}
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}
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struct wlr_drm_renderer *renderer = out->renderer;
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eglDestroySurface(renderer->egl.display, out->egl);
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gbm_surface_destroy(out->gbm);
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free(out->modes);
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out->state = DRM_OUTPUT_DISCONNECTED;
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if (!restore) {
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return;
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}
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drmModeCrtc *crtc = out->old_crtc;
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if (crtc) {
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// Wait for exising page flips to finish
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int wlr_drm_event(int fd, uint32_t mask, void *data) {
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drmEventContext event = {
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.version = DRM_EVENT_CONTEXT_VERSION,
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.page_flip_handler = page_flip_handler,
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};
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out->cleanup = true;
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while (out->pageflip_pending)
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drmHandleEvent(renderer->fd, &event);
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drmHandleEvent(fd, &event);
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drmModeSetCrtc(renderer->fd, crtc->crtc_id, crtc->buffer_id,
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crtc->x, crtc->y, &out->connector,
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1, &crtc->mode);
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return 1;
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}
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static void restore_output(struct wlr_drm_output *out, int fd) {
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drmModeCrtc *crtc = out->old_crtc;
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if (!crtc) {
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return;
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}
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// Wait for exising page flips to finish
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out->cleanup = true;
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while (out->pageflip_pending) {
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wlr_drm_event(fd, 0, NULL);
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}
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drmModeSetCrtc(fd, crtc->crtc_id, crtc->buffer_id, crtc->x, crtc->y,
|
||||
&out->connector, 1, &crtc->mode);
|
||||
drmModeFreeCrtc(crtc);
|
||||
}
|
||||
|
||||
void wlr_drm_output_cleanup(struct wlr_drm_output *out, bool restore) {
|
||||
if (!out) {
|
||||
return;
|
||||
}
|
||||
|
||||
struct wlr_drm_renderer *renderer = out->renderer;
|
||||
|
||||
switch (out->state) {
|
||||
case DRM_OUTPUT_CONNECTED:
|
||||
eglDestroySurface(renderer->egl.display, out->egl);
|
||||
gbm_surface_destroy(out->gbm);
|
||||
|
||||
out->egl = EGL_NO_SURFACE;
|
||||
out->gbm = NULL;
|
||||
/* Fallthrough */
|
||||
|
||||
case DRM_OUTPUT_NEEDS_MODESET:
|
||||
free(out->modes);
|
||||
out->num_modes = 0;
|
||||
out->modes = NULL;
|
||||
out->active_mode = NULL;
|
||||
out->width = 0;
|
||||
out->height = 0;
|
||||
|
||||
if (restore) {
|
||||
restore_output(out, renderer->fd);
|
||||
}
|
||||
|
||||
out->state = DRM_MODE_DISCONNECTED;
|
||||
break;
|
||||
|
||||
case DRM_OUTPUT_DISCONNECTED:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void wlr_drm_output_begin(struct wlr_drm_output *out) {
|
||||
struct wlr_drm_renderer *renderer = out->renderer;
|
||||
eglMakeCurrent(renderer->egl.display, out->egl, out->egl, renderer->egl.context);
|
||||
}
|
||||
|
||||
void wlr_drm_output_end(struct wlr_drm_output *out) {
|
||||
struct wlr_drm_renderer *renderer = out->renderer;
|
||||
eglSwapBuffers(renderer->egl.display, out->egl);
|
||||
|
||||
struct gbm_bo *bo = gbm_surface_lock_front_buffer(out->gbm);
|
||||
uint32_t fb_id = get_fb_for_bo(renderer->fd, bo);
|
||||
|
||||
drmModePageFlip(renderer->fd, out->crtc, fb_id, DRM_MODE_PAGE_FLIP_EVENT, out);
|
||||
|
||||
gbm_surface_release_buffer(out->gbm, bo);
|
||||
|
||||
out->pageflip_pending = false;
|
||||
}
|
||||
|
||||
@ -1,3 +1,7 @@
|
||||
include_directories(
|
||||
${DRM_INCLUDE_DIRS}
|
||||
)
|
||||
|
||||
add_executable(example
|
||||
main.c
|
||||
)
|
||||
|
||||
@ -23,8 +23,10 @@ void output_add(struct wl_listener *listener, void *data)
|
||||
{
|
||||
struct wlr_drm_output *out = data;
|
||||
|
||||
fprintf(stderr, "Output added\n");
|
||||
wlr_drm_output_modeset(out, "preferred");
|
||||
size_t num_modes;
|
||||
struct wlr_drm_mode *modes = wlr_drm_output_get_modes(out, &num_modes);
|
||||
|
||||
wlr_drm_output_modeset(out, &modes[0]);
|
||||
}
|
||||
|
||||
void output_rem(struct wl_listener *listener, void *data)
|
||||
@ -115,4 +117,5 @@ int main()
|
||||
|
||||
wl_event_source_remove(timer);
|
||||
wlr_drm_backend_free(wlr);
|
||||
wl_display_destroy(display);
|
||||
}
|
||||
|
||||
@ -25,7 +25,6 @@ bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, int fd);
|
||||
void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer);
|
||||
|
||||
enum wlr_drm_output_state {
|
||||
DRM_OUTPUT_INVALID,
|
||||
DRM_OUTPUT_DISCONNECTED,
|
||||
DRM_OUTPUT_NEEDS_MODESET,
|
||||
DRM_OUTPUT_CONNECTED,
|
||||
@ -37,8 +36,8 @@ struct wlr_drm_output {
|
||||
char name[16];
|
||||
|
||||
size_t num_modes;
|
||||
drmModeModeInfo *modes;
|
||||
drmModeModeInfo *active_mode;
|
||||
struct wlr_drm_mode *modes;
|
||||
struct wlr_drm_mode *active_mode;
|
||||
|
||||
uint32_t width;
|
||||
uint32_t height;
|
||||
@ -54,11 +53,7 @@ struct wlr_drm_output {
|
||||
bool cleanup;
|
||||
};
|
||||
|
||||
bool wlr_drm_output_modeset(struct wlr_drm_output *out, const char *str);
|
||||
void wlr_drm_output_free(struct wlr_drm_output *out, bool restore);
|
||||
|
||||
void wlr_drm_output_begin(struct wlr_drm_output *out);
|
||||
void wlr_drm_output_end(struct wlr_drm_output *out);
|
||||
void wlr_drm_output_cleanup(struct wlr_drm_output *out, bool restore);
|
||||
|
||||
void wlr_drm_scan_connectors(struct wlr_drm_backend *backend);
|
||||
int wlr_drm_event(int fd, uint32_t mask, void *data);
|
||||
|
||||
@ -3,16 +3,26 @@
|
||||
|
||||
#include <wayland-server.h>
|
||||
#include <wlr/session.h>
|
||||
#include <xf86drmMode.h> // drmModeModeInfo
|
||||
|
||||
struct wlr_drm_backend;
|
||||
struct wlr_drm_output;
|
||||
|
||||
struct wlr_drm_mode {
|
||||
uint16_t width;
|
||||
uint16_t height;
|
||||
uint32_t rate;
|
||||
drmModeModeInfo mode;
|
||||
};
|
||||
|
||||
struct wlr_drm_backend *wlr_drm_backend_init(struct wl_display *display,
|
||||
struct wlr_session *session, struct wl_listener *add, struct wl_listener *rem,
|
||||
struct wl_listener *render);
|
||||
void wlr_drm_backend_free(struct wlr_drm_backend *backend);
|
||||
|
||||
bool wlr_drm_output_modeset(struct wlr_drm_output *out, const char *str);
|
||||
struct wlr_drm_mode *wlr_drm_output_get_modes(struct wlr_drm_output *out, size_t *count);
|
||||
bool wlr_drm_output_modeset(struct wlr_drm_output *out, struct wlr_drm_mode *mode);
|
||||
|
||||
void wlr_drm_output_begin(struct wlr_drm_output *out);
|
||||
void wlr_drm_output_end(struct wlr_drm_output *out);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user