backend/drm: drop drm_surface_{make,unset}_current

backend/drm/renderer.c

@@ -72,8 +72,6 @@ bool init_drm_surface(struct wlr_drm_surface *surf,
 	surf->width = width;
 	surf->height = height;
 
-	wlr_buffer_unlock(surf->back_buffer);
-	surf->back_buffer = NULL;
 	wlr_swapchain_destroy(surf->swapchain);
 	surf->swapchain = NULL;
 
@@ -93,38 +91,11 @@ static void finish_drm_surface(struct wlr_drm_surface *surf) {
 		return;
 	}
 
-	wlr_buffer_unlock(surf->back_buffer);
 	wlr_swapchain_destroy(surf->swapchain);
 
 	memset(surf, 0, sizeof(*surf));
 }
 
-bool drm_surface_make_current(struct wlr_drm_surface *surf,
-		int *buffer_age) {
-	wlr_buffer_unlock(surf->back_buffer);
-	surf->back_buffer = wlr_swapchain_acquire(surf->swapchain, buffer_age);
-	if (surf->back_buffer == NULL) {
-		wlr_log(WLR_ERROR, "Failed to acquire swapchain buffer");
-		return false;
-	}
-
-	if (!renderer_bind_buffer(surf->renderer->wlr_rend, surf->back_buffer)) {
-		wlr_log(WLR_ERROR, "Failed to bind buffer to renderer");
-		return false;
-	}
-
-	return true;
-}
-
-void drm_surface_unset_current(struct wlr_drm_surface *surf) {
-	assert(surf->back_buffer != NULL);
-
-	renderer_bind_buffer(surf->renderer->wlr_rend, NULL);
-
-	wlr_buffer_unlock(surf->back_buffer);
-	surf->back_buffer = NULL;
-}
-
 struct wlr_buffer *drm_surface_blit(struct wlr_drm_surface *surf,
 		struct wlr_buffer *buffer) {
 	struct wlr_renderer *renderer = surf->renderer->wlr_rend;

include/backend/drm/renderer.h

@@ -26,7 +26,6 @@ struct wlr_drm_surface {
 	uint32_t height;
 
 	struct wlr_swapchain *swapchain;
-	struct wlr_buffer *back_buffer;
 };
 
 struct wlr_drm_fb {
@@ -46,8 +45,6 @@ void finish_drm_renderer(struct wlr_drm_renderer *renderer);
 bool init_drm_surface(struct wlr_drm_surface *surf,
 	struct wlr_drm_renderer *renderer, uint32_t width, uint32_t height,
 	const struct wlr_drm_format *drm_format);
-bool drm_surface_make_current(struct wlr_drm_surface *surf, int *buffer_age);
-void drm_surface_unset_current(struct wlr_drm_surface *surf);
 
 bool drm_fb_import(struct wlr_drm_fb **fb, struct wlr_drm_backend *drm,
 		struct wlr_buffer *buf, const struct wlr_drm_format_set *formats);