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| author | marha <marha@users.sourceforge.net> | 2011-04-30 15:25:48 +0000 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2011-04-30 15:25:48 +0000 |
| commit | 0402d388cb9803652c0f9a52ba7dcb6029fdd0b9 (patch) | |
| tree | afd1b68edb9a74d5c87e63ea72d04b8301705d82 /mesalib/src/gallium/auxiliary/util/u_linear.h | |
| parent | c4ae0bb951bfb6061e7f0c492ba03de330137515 (diff) | |
| download | vcxsrv-0402d388cb9803652c0f9a52ba7dcb6029fdd0b9.tar.gz vcxsrv-0402d388cb9803652c0f9a52ba7dcb6029fdd0b9.tar.bz2 vcxsrv-0402d388cb9803652c0f9a52ba7dcb6029fdd0b9.zip | |
Added extra needed files
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_linear.h')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_linear.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_linear.h b/mesalib/src/gallium/auxiliary/util/u_linear.h new file mode 100644 index 000000000..38a790e3f --- /dev/null +++ b/mesalib/src/gallium/auxiliary/util/u_linear.h @@ -0,0 +1,106 @@ +/**************************************************************************
+ *
+ * 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;
+ unsigned stride;
+
+ /* The number of tiles */
+ unsigned tiles_x;
+ unsigned tiles_y;
+
+ /* size of each tile expressed in blocks */
+ unsigned cols;
+ unsigned rows;
+
+ /* Describe the tile in pixels */
+ struct u_linear_format_block tile;
+
+ /* Describe each block within the tile */
+ struct u_linear_format_block block;
+};
+
+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, const void *src_ptr,
+ size_t dst_stride, void *dst_ptr);
+
+/**
+ * Convenience function to fillout a pipe_tile_info struct.
+ * @t info to fill out.
+ * @block block info about pixel layout
+ * @tile_width the width of the tile in pixels
+ * @tile_height the height of the tile in pixels
+ * @tiles_x number of tiles in x axis
+ * @tiles_y number of tiles in y axis
+ */
+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);
+
+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;
+
+ if (t->stride != t->block.size * t->cols * t->tiles_x)
+ return FALSE;
+
+ if (t->size < t->stride * t->rows * t->tiles_y)
+ return FALSE;
+
+ return TRUE;
+}
+
+#endif /* U_LINEAR_H */
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