Implement drm (egl) buffer attaching

include/wlr/render.h

@@ -65,7 +65,7 @@ struct wlr_texture {
  * Copies pixels to this texture. The buffer is not accessed after this function
  * returns.
  */
-bool wlr_texture_upload_pixels(struct wlr_texture *surf,
+bool wlr_texture_upload_pixels(struct wlr_texture *tex,
 		enum wl_shm_format format, int stride, int width, int height,
 		const unsigned char *pixels);
 /**
@@ -80,8 +80,17 @@ bool wlr_texture_update_pixels(struct wlr_texture *surf,
  * Copies pixels from a wl_shm_buffer into this texture. The buffer is not
  * accessed after this function returns.
  */
-bool wlr_texture_upload_shm(struct wlr_texture *surf, uint32_t format,
+bool wlr_texture_upload_shm(struct wlr_texture *tex, uint32_t format,
 		struct wl_shm_buffer *shm);
+
+/**
+ * Attaches the contents from the given wl_drm wl_buffer resource onto the
+ * texture. The wl_resource is not used after this call.
+ * Will fail (return false) if the given resource is no drm buffer.
+ */
+ bool wlr_texture_upload_drm(struct wlr_texture *tex,
+ 	struct wl_resource *drm_buffer);
+
 /**
  * Copies a rectangle of pixels from a wl_shm_buffer onto the texture. The
  * buffer is not accessed after this function returns. Under some circumstances,

include/wlr/render/gles2.h

@@ -2,6 +2,7 @@
 #define _WLR_GLES2_RENDERER_H
 #include <wlr/render.h>
 
+struct wlr_egl;
 struct wlr_renderer *wlr_gles2_renderer_init();
 
 #endif

include/wlr/render/interface.h

@@ -42,7 +42,8 @@ struct wlr_texture_impl {
 		struct wl_shm_buffer *shm);
 	bool (*update_shm)(struct wlr_texture_state *surf, uint32_t format,
 		int x, int y, int width, int height, struct wl_shm_buffer *shm);
-	// TODO: egl
+	bool (*upload_drm)(struct wlr_texture_state *state,
+		struct wl_resource *drm_buf);
 	void (*get_matrix)(struct wlr_texture_state *state,
 		float (*matrix)[16], const float (*projection)[16], int x, int y);
 	void (*bind)(struct wlr_texture_state *state);