render: remove wl_drm support from wlr_renderer

Everything needs to go through the unified wlr_buffer interface
now.

If necessary, there are two ways support for
EGL_WL_bind_wayland_display could be restored by compositors:

- Either by using GBM to convert back EGL Wayland buffers to
  DMA-BUFs, then wrap the DMA-BUF into a wlr_buffer.
- Or by wrapping the EGL Wayland buffer into a special wlr_buffer
  that doesn't implement any wlr_buffer_impl hook, and special-case
  that buffer type in the renderer.

include/wlr/render/interface.h

@@ -30,12 +30,8 @@ struct wlr_renderer_impl {
 		const float matrix[static 9], float alpha);
 	void (*render_quad_with_matrix)(struct wlr_renderer *renderer,
 		const float color[static 4], const float matrix[static 9]);
-	const uint32_t *(*get_shm_texture_formats)(struct wlr_renderer *renderer,
-		size_t *len);
-	bool (*resource_is_wl_drm_buffer)(struct wlr_renderer *renderer,
-		struct wl_resource *resource);
-	void (*wl_drm_buffer_get_size)(struct wlr_renderer *renderer,
-		struct wl_resource *buffer, int *width, int *height);
+	const uint32_t *(*get_shm_texture_formats)(
+		struct wlr_renderer *renderer, size_t *len);
 	const struct wlr_drm_format_set *(*get_dmabuf_texture_formats)(
 		struct wlr_renderer *renderer);
 	const struct wlr_drm_format_set *(*get_render_formats)(
@@ -45,8 +41,6 @@ struct wlr_renderer_impl {
 		uint32_t *flags, uint32_t stride, uint32_t width, uint32_t height,
 		uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y,
 		void *data);
-	struct wlr_texture *(*texture_from_wl_drm)(struct wlr_renderer *renderer,
-		struct wl_resource *data);
 	void (*destroy)(struct wlr_renderer *renderer);
 	bool (*init_wl_display)(struct wlr_renderer *renderer,
 		struct wl_display *wl_display);

include/wlr/render/wlr_renderer.h

@@ -80,16 +80,6 @@ void wlr_render_quad_with_matrix(struct wlr_renderer *r,
  */
 const uint32_t *wlr_renderer_get_shm_texture_formats(
 	struct wlr_renderer *r, size_t *len);
-/**
- * Returns true if this wl_buffer is a wl_drm buffer.
- */
-bool wlr_renderer_resource_is_wl_drm_buffer(struct wlr_renderer *renderer,
-	struct wl_resource *buffer);
-/**
- * Gets the width and height of a wl_drm buffer.
- */
-void wlr_renderer_wl_drm_buffer_get_size(struct wlr_renderer *renderer,
-	struct wl_resource *buffer, int *width, int *height);
 /**
  * Get the DMA-BUF formats supporting sampling usage. Buffers allocated with
  * a format from this list may be imported via wlr_texture_from_dmabuf.

render/wlr_renderer.c

@@ -159,22 +159,6 @@ const uint32_t *wlr_renderer_get_shm_texture_formats(struct wlr_renderer *r,
 	return r->impl->get_shm_texture_formats(r, len);
 }
 
-bool wlr_renderer_resource_is_wl_drm_buffer(struct wlr_renderer *r,
-		struct wl_resource *resource) {
-	if (!r->impl->resource_is_wl_drm_buffer) {
-		return false;
-	}
-	return r->impl->resource_is_wl_drm_buffer(r, resource);
-}
-
-void wlr_renderer_wl_drm_buffer_get_size(struct wlr_renderer *r,
-		struct wl_resource *buffer, int *width, int *height) {
-	if (!r->impl->wl_drm_buffer_get_size) {
-		return;
-	}
-	return r->impl->wl_drm_buffer_get_size(r, buffer, width, height);
-}
-
 const struct wlr_drm_format_set *wlr_renderer_get_dmabuf_texture_formats(
 		struct wlr_renderer *r) {
 	if (!r->impl->get_dmabuf_texture_formats) {

render/wlr_texture.c

@@ -45,14 +45,6 @@ struct wlr_texture *wlr_texture_from_pixels(struct wlr_renderer *renderer,
 	return texture;
 }
 
-struct wlr_texture *wlr_texture_from_wl_drm(struct wlr_renderer *renderer,
-		struct wl_resource *data) {
-	if (!renderer->impl->texture_from_wl_drm) {
-		return NULL;
-	}
-	return renderer->impl->texture_from_wl_drm(renderer, data);
-}
-
 struct wlr_texture *wlr_texture_from_dmabuf(struct wlr_renderer *renderer,
 		struct wlr_dmabuf_attributes *attribs) {
 	struct wlr_dmabuf_buffer *buffer = dmabuf_buffer_create(attribs);

types/wlr_buffer.c

@@ -112,10 +112,6 @@ bool wlr_resource_get_buffer_size(struct wl_resource *resource,
 	if (shm_buf != NULL) {
 		*width = wl_shm_buffer_get_width(shm_buf);
 		*height = wl_shm_buffer_get_height(shm_buf);
-	} else if (wlr_renderer_resource_is_wl_drm_buffer(renderer,
-			resource)) {
-		wlr_renderer_wl_drm_buffer_get_size(renderer, resource,
-			width, height);
 	} else if (wlr_dmabuf_v1_resource_is_buffer(resource)) {
 		struct wlr_dmabuf_v1_buffer *dmabuf =
 			wlr_dmabuf_v1_buffer_from_buffer_resource(resource);
@@ -240,8 +236,6 @@ struct wlr_client_buffer *wlr_client_buffer_import(
 		// The renderer is responsible for releasing the buffer when
 		// appropriate
 		resource_released = true;
-	} else if (wlr_renderer_resource_is_wl_drm_buffer(renderer, resource)) {
-		texture = wlr_texture_from_wl_drm(renderer, resource);
 	} else if (wlr_dmabuf_v1_resource_is_buffer(resource)) {
 		struct wlr_dmabuf_v1_buffer *dmabuf =
 			wlr_dmabuf_v1_buffer_from_buffer_resource(resource);