X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fauxiliary%2Futil%2Fu_linear.h;h=81ffc9fb27d29f7ef9813d2c9f6d876e04b8490b;hb=ee7bc103919d0af7d77a58cdaa855d6e07e899c6;hp=e337cfd7702865bcce91e4ad10616dd2fe72b4be;hpb=4af0d940a35536f096a9289470af0268a79402b3;p=mesa.git

diff --git a/src/gallium/auxiliary/util/u_linear.h b/src/gallium/auxiliary/util/u_linear.h
index e337cfd7702..81ffc9fb27d 100644
--- a/src/gallium/auxiliary/util/u_linear.h
+++ b/src/gallium/auxiliary/util/u_linear.h
@@ -1,8 +1,54 @@
+/**************************************************************************
+ * 
+ * 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.
+ * 
+ **************************************************************************/
+
+/**
+ * Functions for converting tiled data to linear and vice versa.
+ */
+
 
 #ifndef U_LINEAR_H
 #define U_LINEAR_H
 
+#include "pipe/p_compiler.h"
 #include "pipe/p_format.h"
+
+struct u_linear_format_block
+{
+   /** Block size in bytes */
+   unsigned size;
+   
+   /** Block width in pixels */
+   unsigned width;
+   
+   /** Block height in pixels */
+   unsigned height;
+};
+
+
 struct pipe_tile_info
 {
    unsigned size;
@@ -17,16 +63,16 @@ struct pipe_tile_info
    unsigned rows;
 
    /* Describe the tile in pixels */
-   struct pipe_format_block tile;
+   struct u_linear_format_block tile;
 
    /* Describe each block within the tile */
-   struct pipe_format_block block;
+   struct u_linear_format_block block;
 };
 
-void pipe_linear_to_tile(size_t src_stride, void *src_ptr,
+void pipe_linear_to_tile(size_t src_stride, const void *src_ptr,
 			 struct pipe_tile_info *t, void  *dst_ptr);
 
-void pipe_linear_from_tile(struct pipe_tile_info *t, void  *src_ptr,
+void pipe_linear_from_tile(struct pipe_tile_info *t, const void *src_ptr,
 			   size_t dst_stride, void *dst_ptr);
 
 /**
@@ -39,11 +85,11 @@ void pipe_linear_from_tile(struct pipe_tile_info *t, void  *src_ptr,
  * @tiles_y number of tiles in y axis
  */
 void pipe_linear_fill_info(struct pipe_tile_info *t,
-			   struct pipe_format_block *block,
+			   const struct u_linear_format_block *block,
 			   unsigned tile_width, unsigned tile_height,
 			   unsigned tiles_x, unsigned tiles_y);
 
-static INLINE boolean pipe_linear_check_tile(struct pipe_tile_info *t)
+static INLINE boolean pipe_linear_check_tile(const struct pipe_tile_info *t)
 {
    if (t->tile.size != t->block.size * t->cols * t->rows)
       return FALSE;