Added extra needed files

1 files changed, 101 insertions, 0 deletions

diff --git a/mesalib/src/gallium/auxiliary/util/u_linear.c b/mesalib/src/gallium/auxiliary/util/u_linear.c
new file mode 100644
index 000000000..8f8935d8a
--- /dev/null
+++ b/mesalib/src/gallium/auxiliary/util/u_linear.c
@@ -0,0 +1,101 @@
+/**************************************************************************

+ * 

+ * 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.

+ */

+

+

+#include "util/u_debug.h"

+#include "u_linear.h"

+

+void

+pipe_linear_to_tile(size_t src_stride, const void *src_ptr,

+		    struct pipe_tile_info *t, void *dst_ptr)

+{

+   int x, y, z;

+   char *ptr;

+   size_t bytes = t->cols * t->block.size;

+   char *dst_ptr2 = (char *) dst_ptr;

+

+   assert(pipe_linear_check_tile(t));

+

+   /* lets write lineary to the tiled buffer */

+   for (y = 0; y < t->tiles_y; y++) {

+      for (x = 0; x < t->tiles_x; x++) {

+	 /* this inner loop could be replace with SSE magic */

+	 ptr = (char*)src_ptr + src_stride * t->rows * y + bytes * x;

+	 for (z = 0; z < t->rows; z++) {

+	    memcpy(dst_ptr2, ptr, bytes);

+	    dst_ptr2 += bytes;

+	    ptr += src_stride;

+	 }

+      }

+   }

+}

+

+void pipe_linear_from_tile(struct pipe_tile_info *t, const void *src_ptr,

+			   size_t dst_stride, void *dst_ptr)

+{

+   int x, y, z;

+   char *ptr;

+   size_t bytes = t->cols * t->block.size;

+   const char *src_ptr2 = (const char *) src_ptr;

+

+   /* lets read lineary from the tiled buffer */

+   for (y = 0; y < t->tiles_y; y++) {

+      for (x = 0; x < t->tiles_x; x++) {

+	 /* this inner loop could be replace with SSE magic */

+	 ptr = (char*)dst_ptr + dst_stride * t->rows * y + bytes * x;

+	 for (z = 0; z < t->rows; z++) {

+	    memcpy(ptr, src_ptr2, bytes);

+	    src_ptr2 += bytes;

+	    ptr += dst_stride;

+	 }

+      }

+   }

+}

+

+void

+pipe_linear_fill_info(struct pipe_tile_info *t,

+		      const struct u_linear_format_block *block,

+		      unsigned tile_width, unsigned tile_height,

+		      unsigned tiles_x, unsigned tiles_y)

+{

+   t->block = *block;

+

+   t->tile.width = tile_width;

+   t->tile.height = tile_height;

+   t->cols = t->tile.width / t->block.width;

+   t->rows = t->tile.height / t->block.height;

+   t->tile.size = t->cols * t->rows * t->block.size;

+

+   t->tiles_x = tiles_x;

+   t->tiles_y = tiles_y;

+   t->stride = t->cols * t->tiles_x * t->block.size;

+   t->size = t->tiles_x * t->tiles_y * t->tile.size;

+}