diff options
Diffstat (limited to 'backend')
| -rw-r--r-- | backend/x11/backend.c | 83 |
1 files changed, 76 insertions, 7 deletions
diff --git a/backend/x11/backend.c b/backend/x11/backend.c index 980bc14c..9482f86d 100644 --- a/backend/x11/backend.c +++ b/backend/x11/backend.c @@ -180,6 +180,7 @@ static void backend_destroy(struct wlr_backend *backend) { wl_list_remove(&x11->display_destroy.link); wlr_renderer_destroy(x11->renderer); + wlr_drm_format_set_finish(&x11->dri3_formats); wlr_egl_finish(&x11->egl); free(x11->drm_format); @@ -236,6 +237,56 @@ static xcb_visualid_t pick_visualid(xcb_depth_t *depth) { return 0; } +static bool query_dri3_modifiers(struct wlr_x11_backend *x11, + const struct wlr_x11_format *format) { + // Query the root window's supported modifiers, because we only care about + // screen_modifiers for now + xcb_dri3_get_supported_modifiers_cookie_t modifiers_cookie = + xcb_dri3_get_supported_modifiers(x11->xcb, x11->screen->root, + format->depth, format->bpp); + xcb_dri3_get_supported_modifiers_reply_t *modifiers_reply = + xcb_dri3_get_supported_modifiers_reply(x11->xcb, modifiers_cookie, + NULL); + if (!modifiers_reply) { + wlr_log(WLR_ERROR, "Failed to get DMA-BUF modifiers supported by " + "the X11 server for the format 0x%"PRIX32, format->drm); + return false; + } + + // If modifiers aren't supported, DRI3 will return an empty list + const uint64_t *modifiers = + xcb_dri3_get_supported_modifiers_screen_modifiers(modifiers_reply); + int modifiers_len = + xcb_dri3_get_supported_modifiers_screen_modifiers_length(modifiers_reply); + for (int i = 0; i < modifiers_len; i++) { + wlr_drm_format_set_add(&x11->dri3_formats, format->drm, modifiers[i]); + } + + free(modifiers_reply); + return true; +} + +static bool query_dri3_formats(struct wlr_x11_backend *x11) { + xcb_depth_iterator_t iter = xcb_screen_allowed_depths_iterator(x11->screen); + while (iter.rem > 0) { + uint8_t depth = iter.data->depth; + + const struct wlr_x11_format *format = x11_format_from_depth(depth); + if (format != NULL) { + wlr_drm_format_set_add(&x11->dri3_formats, format->drm, + DRM_FORMAT_MOD_INVALID); + + if (!query_dri3_modifiers(x11, format)) { + return false; + } + } + + xcb_depth_next(&iter); + } + + return true; +} + struct wlr_backend *wlr_x11_backend_create(struct wl_display *display, const char *x11_display, wlr_renderer_create_func_t create_renderer_func) { @@ -452,21 +503,39 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display, } x11->allocator = &alloc->base; - const struct wlr_drm_format_set *formats = + const struct wlr_drm_format_set *render_formats = wlr_renderer_get_dmabuf_render_formats(x11->renderer); - if (formats == NULL) { + if (render_formats == NULL) { wlr_log(WLR_ERROR, "Failed to get available DMA-BUF formats from renderer"); return false; } - const struct wlr_drm_format *format = - wlr_drm_format_set_get(formats, x11->x11_format->drm); - if (format == NULL) { + const struct wlr_drm_format *render_format = + wlr_drm_format_set_get(render_formats, x11->x11_format->drm); + if (render_format == NULL) { wlr_log(WLR_ERROR, "Renderer doesn't support DRM format 0x%"PRIX32, x11->x11_format->drm); return false; } - // TODO intersect modifiers with DRI3GetSupportedModifiers - x11->drm_format = wlr_drm_format_dup(format); + + if (!query_dri3_formats(x11)) { + wlr_log(WLR_ERROR, "Failed to query supported DRI3 formats"); + return false; + } + + const struct wlr_drm_format *dri3_format = + wlr_drm_format_set_get(render_formats, x11->x11_format->drm); + if (dri3_format == NULL) { + wlr_log(WLR_ERROR, "X11 server doesn't support DRM format 0x%"PRIX32, + x11->x11_format->drm); + return false; + } + + x11->drm_format = wlr_drm_format_intersect(dri3_format, render_format); + if (x11->drm_format == NULL) { + wlr_log(WLR_ERROR, "Failed to intersect DRI3 and render modifiers for " + "format 0x%"PRIX32, x11->x11_format->drm); + return false; + } #if WLR_HAS_XCB_ERRORS if (xcb_errors_context_new(x11->xcb, &x11->errors_context) != 0) { |