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| author | marha <marha@users.sourceforge.net> | 2011-04-30 16:21:56 +0000 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2011-04-30 16:21:56 +0000 |
| commit | e4dd9264ee8d4a20eef0eec8c8bf8cff2473b46f (patch) | |
| tree | 1804d7456ba8f200c7e329d4e6aa67ce4fb1649f /mesalib/src/gallium/auxiliary/util/u_linear.c | |
| parent | 88a78ebea08af461224f815a8380ea5c54186f43 (diff) | |
| parent | 0402d388cb9803652c0f9a52ba7dcb6029fdd0b9 (diff) | |
| download | vcxsrv-e4dd9264ee8d4a20eef0eec8c8bf8cff2473b46f.tar.gz vcxsrv-e4dd9264ee8d4a20eef0eec8c8bf8cff2473b46f.tar.bz2 vcxsrv-e4dd9264ee8d4a20eef0eec8c8bf8cff2473b46f.zip | |
svn merge ^/branches/released .
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_linear.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_linear.c | 101 |
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;
+}
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