gallium: Add a dri1 api

that a driver needs to implement on top of the drm api to support dri1.

Signed-off-by: Thomas Hellstrom <thellstrom-at-vmware-dot-com>

diff --git a/src/gallium/include/state_tracker/dri1_api.h b/src/gallium/include/state_tracker/dri1_api.h
new file mode 100644 (file)
index 0000000..b173ba3
--- /dev/null
+++ b/src/gallium/include/state_tracker/dri1_api.h
@@ -0,0 +1,82 @@
+#ifndef _DRI1_API_H_
+#define _DRI1_API_H_
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_format.h"
+
+#include "state_tracker/drm_api.h"
+
+#include <drm.h>
+
+struct pipe_screen;
+struct pipe_winsys;
+struct pipe_buffer;
+struct pipe_context;
+struct pipe_texture;
+
+struct dri1_api_version
+{
+   int major;
+   int minor;
+   int patch_level;
+};
+
+/**
+ * This callback struct is intended for drivers that need to take
+ * the hardware lock on command submission.
+ */
+
+struct dri1_api_lock_funcs
+{
+   void (*lock) (struct pipe_context * pipe);
+   void (*unlock) (struct pipe_context * locked_pipe);
+      boolean(*is_locked) (struct pipe_context * locked_pipe);
+      boolean(*is_lock_lost) (struct pipe_context * locked_pipe);
+   void (*clear_lost_lock) (struct pipe_context * locked_pipe);
+};
+
+struct dri1_api
+{
+   /**
+    * For flushing to the front buffer. A driver should implement one and only
+    * one of the functions below. The present_locked functions allows a dri1
+    * driver to pageflip.
+    */
+
+   /*@{ */
+
+   struct pipe_surface *(*front_srf_locked) (struct pipe_context *
+                                            locked_pipe);
+
+   void (*present_locked) (struct pipe_context * locked_pipe,
+                          struct pipe_surface * surf,
+                          const struct drm_clip_rect * rect,
+                          unsigned int num_clip,
+                          int x_draw, int y_draw,
+                          const struct drm_clip_rect * src_bbox,
+                          struct pipe_fence_handle ** fence);
+   /*@} */
+};
+
+struct dri1_create_screen_arg
+{
+   struct drm_create_screen_arg base;
+
+   struct dri1_api_lock_funcs *lf;
+   void *ddx_info;
+   int ddx_info_size;
+   void *sarea;
+
+   struct dri1_api_version ddx_version;
+   struct dri1_api_version dri_version;
+   struct dri1_api_version drm_version;
+
+   /*
+    * out parameters;
+    */
+
+   struct dri1_api *api;
+};
+
+#endif