gallium/drivers: Create Galahad from identity.

Galahad is a sanity-checking layer meant to replace the crufty and
scattered sanity checks inside drivers with a robust, non-silenceable,
useful set of warnings and errors that can be used to keep misbehaving
state trackers from going unnoticed.

1 files changed, 93 insertions, 0 deletions

diff --git a/src/gallium/drivers/galahad/glhd_drm.c b/src/gallium/drivers/galahad/glhd_drm.c
new file mode 100644
index 00000000000..78e290c9a84
--- /dev/null
+++ b/src/gallium/drivers/galahad/glhd_drm.c
@@ -0,0 +1,93 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "state_tracker/drm_api.h"
+
+#include "util/u_memory.h"
+#include "glhd_drm.h"
+#include "glhd_screen.h"
+#include "glhd_public.h"
+
+struct galahad_drm_api
+{
+   struct drm_api base;
+
+   struct drm_api *api;
+};
+
+static INLINE struct galahad_drm_api *
+galahad_drm_api(struct drm_api *_api)
+{
+   return (struct galahad_drm_api *)_api;
+}
+
+static struct pipe_screen *
+galahad_drm_create_screen(struct drm_api *_api, int fd)
+{
+   struct galahad_drm_api *glhd_api = galahad_drm_api(_api);
+   struct drm_api *api = glhd_api->api;
+   struct pipe_screen *screen;
+
+   screen = api->create_screen(api, fd);
+
+   return galahad_screen_create(screen);
+}
+
+static void
+galahad_drm_destroy(struct drm_api *_api)
+{
+   struct galahad_drm_api *glhd_api = galahad_drm_api(_api);
+   struct drm_api *api = glhd_api->api;
+   api->destroy(api);
+
+   FREE(glhd_api);
+}
+
+struct drm_api *
+galahad_drm_create(struct drm_api *api)
+{
+   struct galahad_drm_api *glhd_api;
+
+   if (!api)
+      goto error;
+
+   glhd_api = CALLOC_STRUCT(galahad_drm_api);
+
+   if (!glhd_api)
+      goto error;
+
+   glhd_api->base.name = api->name;
+   glhd_api->base.driver_name = api->driver_name;
+   glhd_api->base.create_screen = galahad_drm_create_screen;
+   glhd_api->base.destroy = galahad_drm_destroy;
+   glhd_api->api = api;
+
+   return &glhd_api->base;
+
+error:
+   return api;
+}