wayland-drm: Pass struct wl_drm_buffer to the driver

We're going to extend this to support multi-plane buffers, so pass this
to the driver so it can access the details.

2 files changed, 18 insertions, 19 deletions

diff --git a/src/egl/wayland/wayland-drm/wayland-drm.c b/src/egl/wayland/wayland-drm/wayland-drm.c
index 5f831b3..af176b7 100644
--- a/src/egl/wayland/wayland-drm/wayland-drm.c
+++ b/src/egl/wayland/wayland-drm/wayland-drm.c
@@ -56,22 +56,13 @@ struct wl_drm {
 	struct wayland_drm_callbacks *callbacks;
 };
 
-struct wl_drm_buffer {
-	struct wl_buffer buffer;
-	struct wl_drm *drm;
-	uint32_t format;
-
-	void *driver_buffer;
-};
-
 static void
 destroy_buffer(struct wl_resource *resource)
 {
 	struct wl_drm_buffer *buffer = resource->data;
 	struct wl_drm *drm = buffer->drm;
 
-	drm->callbacks->release_buffer(drm->user_data,
-				       buffer->driver_buffer);
+	drm->callbacks->release_buffer(drm->user_data, buffer);
 	free(buffer);
 }
 
@@ -129,12 +120,10 @@ drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
 	buffer->buffer.width = width;
 	buffer->buffer.height = height;
 	buffer->format = format;
+	buffer->offset0 = 0;
+	buffer->stride0 = stride;
 
-	buffer->driver_buffer =
-		drm->callbacks->reference_buffer(drm->user_data, name,
-						 width, height,
-						 stride, format);
-
+        drm->callbacks->reference_buffer(drm->user_data, name, buffer);
 	if (buffer->driver_buffer == NULL) {
 		wl_resource_post_error(resource,
 				       WL_DRM_ERROR_INVALID_NAME,
diff --git a/src/egl/wayland/wayland-drm/wayland-drm.h b/src/egl/wayland/wayland-drm/wayland-drm.h
index bec50a5..f3df7ee 100644
--- a/src/egl/wayland/wayland-drm/wayland-drm.h
+++ b/src/egl/wayland/wayland-drm/wayland-drm.h
@@ -9,14 +9,24 @@
 
 struct wl_drm;
 
+struct wl_drm_buffer {
+	struct wl_buffer buffer;
+	struct wl_drm *drm;
+	uint32_t format;
+	uint32_t driver_format;
+        int32_t offset0;
+        int32_t stride0;
+
+	void *driver_buffer;
+};
+
 struct wayland_drm_callbacks {
 	int (*authenticate)(void *user_data, uint32_t id);
 
-	void *(*reference_buffer)(void *user_data, uint32_t name,
-				  int32_t width, int32_t height,
-				  uint32_t stride, uint32_t format);
+	void (*reference_buffer)(void *user_data, uint32_t name,
+                                 struct wl_drm_buffer *buffer);
 
-	void (*release_buffer)(void *user_data, void *buffer);
+	void (*release_buffer)(void *user_data, struct wl_drm_buffer *buffer);
 };
 
 struct wl_drm *