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.

3 files changed, 33 insertions, 37 deletions

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index e2dee798d60..bb30e699fe4 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1220,43 +1220,40 @@ dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
 
 #ifdef HAVE_WAYLAND_PLATFORM
 
-static void *
+static void
 dri2_wl_reference_buffer(void *user_data, uint32_t name,
-			 int32_t width, int32_t height,
-			 uint32_t stride, uint32_t format)
+                         struct wl_drm_buffer *buffer)
 {
    _EGLDisplay *disp = user_data;
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   __DRIimage *image;
-   int dri_format;
 
-   switch (format) {
+   switch (buffer->format) {
    case WL_DRM_FORMAT_ARGB8888:
-      dri_format =__DRI_IMAGE_FORMAT_ARGB8888;
+      buffer->driver_format =__DRI_IMAGE_FORMAT_ARGB8888;
       break;
    case WL_DRM_FORMAT_XRGB8888:
-      dri_format = __DRI_IMAGE_FORMAT_XRGB8888;
+      buffer->driver_format = __DRI_IMAGE_FORMAT_XRGB8888;
       break;
    default:
-      return NULL;	   
+      return;
    }
 
-   image = dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
-						width, height, 
-						dri_format, name, stride / 4,
-						NULL);
-
-   return image;
+   buffer->driver_buffer =
+      dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
+                                           buffer->buffer.width,
+                                           buffer->buffer.height, 
+                                           buffer->driver_format, name,
+                                           buffer->stride0 / 4,
+                                           NULL);
 }
 
 static void
-dri2_wl_release_buffer(void *user_data, void *buffer)
+dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
 {
    _EGLDisplay *disp = user_data;
-   __DRIimage *image = buffer;
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
 
-   dri2_dpy->image->destroyImage(image);
+   dri2_dpy->image->destroyImage(buffer->driver_buffer);
 }
 
 static struct wayland_drm_callbacks wl_drm_callbacks = {
diff --git a/src/egl/wayland/wayland-drm/wayland-drm.c b/src/egl/wayland/wayland-drm/wayland-drm.c
index 5f831b3487f..af176b72d12 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 bec50a5539f..f3df7eeaddd 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 *