Merge dri-0-1-branch to trunk. Notable changes:

- Add libdrm and libdri. Portions of the DRI extension are stubbed out.
- Use the DRM in the ATI driver when available. This provides a minor
    performance improvement in x11perf, and opens the possibility of using
    the 3d hardware for acceleration in the future.
- Implement solid fill acceleration for Composite in KAA.
- Implement Blend hook for Composite and use it on r128.
- Fix a bug of mine that resulted in overuse of offscreen memory.
- Fix many miscellaneous bugs in ATI driver and add PCI IDs.

hw/kdrive/ati/ati_sarea.h

@@ -0,0 +1,42 @@
+
+/*
+ * $Id$
+ *
+ * Copyright © 2003 Eric Anholt
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Eric Anholt not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission.  Eric Anholt makes no
+ * representations about the suitability of this software for any purpose.  It
+ * is provided "as is" without express or implied warranty.
+ *
+ * ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ERIC ANHOLT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+/* $Header$ */
+
+#ifndef _ATI_SAREA_H_
+#define _ATI_SAREA_H_
+
+/* There are 2 heaps (local/AGP).  Each region within a heap is a
+ * minimum of 64k, and there are at most 64 of them per heap.
+ */
+#define ATI_CARD_HEAP			0
+#define ATI_GART_HEAP			1
+#define ATI_NR_TEX_HEAPS		2
+#define ATI_NR_TEX_REGIONS		64
+#define ATI_LOG_TEX_GRANULARITY		16
+
+#include "r128_sarea.h"
+#include "radeon_sarea.h"
+
+#endif /* _ATI_SAREA_H_ */