1 files changed, 199 insertions, 0 deletions
diff --git a/src/gallium/drivers/i965/brw_screen.h b/src/gallium/drivers/i965/brw_screen.h
new file mode 100644
index 00000000000..7226d9228b7
--- /dev/null
+++ b/src/gallium/drivers/i965/brw_screen.h
@@ -0,0 +1,199 @@
+/**************************************************************************
+ * 
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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.
+ * 
+ **************************************************************************/
+
+#ifndef BRW_SCREEN_H
+#define BRW_SCREEN_H
+
+#include "pipe/p_state.h"
+#include "pipe/p_screen.h"
+
+#include "brw_reg.h"
+#include "brw_structs.h"
+
+struct brw_winsys_screen;
+
+
+/**
+ * Subclass of pipe_screen
+ */
+struct brw_screen
+{
+   struct pipe_screen base;
+   struct brw_chipset chipset;
+   struct brw_winsys_screen *sws;
+   boolean no_tiling;
+};
+
+/**
+ * Subclass of pipe_transfer
+ */
+struct brw_transfer
+{
+   struct pipe_transfer base;
+
+   unsigned offset;
+};
+
+struct brw_buffer
+{
+   struct pipe_buffer base;
+
+   /* One of either bo or user_buffer will be non-null, depending on
+    * whether this is a hardware or user buffer.
+    */
+   struct brw_winsys_buffer *bo;
+   void *user_buffer;
+
+   /* Mapped pointer??
+    */
+   void *ptr;
+};
+
+
+union brw_surface_id {
+   struct {
+      unsigned face:3;
+      unsigned zslice:13;
+      unsigned level:16;
+   } bits;
+   unsigned value;
+};
+
+
+struct brw_surface
+{
+   struct pipe_surface base;
+   
+   union brw_surface_id id;
+   unsigned cpp;
+   unsigned pitch;
+   unsigned draw_offset;
+   unsigned tiling;
+
+   struct brw_surface_state ss;
+   struct brw_winsys_buffer *bo;
+   struct brw_surface *next, *prev;
+};
+
+
+
+struct brw_texture
+{
+   struct pipe_texture base;
+   struct brw_winsys_buffer *bo;
+   struct brw_surface_state ss;
+
+   unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS];
+   unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS];
+   unsigned level_offset[PIPE_MAX_TEXTURE_LEVELS];
+
+   boolean compressed;
+   unsigned brw_target;
+   unsigned pitch;
+   unsigned tiling;
+   unsigned cpp;
+   unsigned total_height;
+
+   struct brw_surface views[2];
+};
+
+
+
+/*
+ * Cast wrappers
+ */
+static INLINE struct brw_screen *
+brw_screen(struct pipe_screen *pscreen)
+{
+   return (struct brw_screen *) pscreen;
+}
+
+static INLINE struct brw_transfer *
+brw_transfer(struct pipe_transfer *transfer)
+{
+   return (struct brw_transfer *)transfer;
+}
+
+static INLINE struct brw_surface *
+brw_surface(struct pipe_surface *surface)
+{
+   return (struct brw_surface *)surface;
+}
+
+static INLINE struct brw_buffer *
+brw_buffer(struct pipe_buffer *buffer)
+{
+   return (struct brw_buffer *)buffer;
+}
+
+static INLINE struct brw_texture *
+brw_texture(struct pipe_texture *texture)
+{
+   return (struct brw_texture *)texture;
+}
+
+
+/* Pipe buffer helpers
+ */
+static INLINE boolean
+brw_buffer_is_user_buffer( const struct pipe_buffer *buf )
+{
+   return ((const struct brw_buffer *)buf)->user_buffer != NULL;
+}
+
+unsigned
+brw_surface_pitch( const struct pipe_surface *surface );
+
+/***********************************************************************
+ * Internal functions 
+ */
+GLboolean brw_texture_layout(struct brw_screen *brw_screen,
+			     struct brw_texture *tex );
+
+void brw_update_texture( struct brw_screen *brw_screen,
+			 struct brw_texture *tex );
+
+
+void brw_screen_tex_init( struct brw_screen *brw_screen );
+void brw_screen_tex_surface_init( struct brw_screen *brw_screen );
+
+void brw_screen_buffer_init(struct brw_screen *brw_screen);
+
+
+boolean brw_is_texture_referenced_by_bo( struct brw_screen *brw_screen,
+                                         struct pipe_texture *texture,
+                                         unsigned face, 
+                                         unsigned level,
+                                         struct brw_winsys_buffer *bo );
+
+boolean brw_is_buffer_referenced_by_bo( struct brw_screen *brw_screen,
+                                        struct pipe_buffer *buffer,
+                                        struct brw_winsys_buffer *bo );
+
+
+
+#endif /* BRW_SCREEN_H */