1 files changed, 76 insertions, 0 deletions
diff --git a/src/mesa/x86/clip_args.h b/src/mesa/x86/clip_args.h
new file mode 100644
index 00000000000..47f4b510ea1
--- /dev/null
+++ b/src/mesa/x86/clip_args.h
@@ -0,0 +1,76 @@
+/* $Id: clip_args.h,v 1.1.2.1 2000/10/22 23:10:51 gareth Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.4
+ *
+ * Copyright (C) 1999-2000  Brian Paul   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, sublicense,
+ * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL 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.
+ */
+
+/*
+ * Clip test function interface for assembly code.  Simply define
+ * FRAME_OFFSET to the number of bytes pushed onto the stack before
+ * using the ARG_* argument macros.
+ *
+ * Gareth Hughes <gareth@valinux.com>
+ */
+
+#ifndef __CLIP_ARGS_H__
+#define __CLIP_ARGS_H__
+
+/* Offsets into GLvector4f
+ */
+#define V4F_DATA	0
+#define V4F_START	4
+#define V4F_COUNT	8
+#define V4F_STRIDE	12
+#define V4F_SIZE	16
+#define V4F_FLAGS	20
+
+/* GLvector4f flags
+ */
+#define VEC_SIZE_1	1
+#define VEC_SIZE_2	3
+#define VEC_SIZE_3	7
+#define VEC_SIZE_4	15
+
+/*
+ * Offsets for clip_func arguments
+ *
+ * typedef GLvector4f *(*clip_func)( GLvector4f *vClip,
+ *	                             GLvector4f *vProj,
+ *	                             GLubyte clipMask[],
+ *	                             GLubyte *orMask,
+ *	                             GLubyte *andMask );
+ */
+
+#define OFFSET_SOURCE	4
+#define OFFSET_DEST	8
+#define OFFSET_CLIP	12
+#define OFFSET_OR	16
+#define OFFSET_AND	20
+
+#define ARG_SOURCE	REGOFF(FRAME_OFFSET+OFFSET_SOURCE, ESP)
+#define ARG_DEST	REGOFF(FRAME_OFFSET+OFFSET_DEST, ESP)
+#define ARG_CLIP	REGOFF(FRAME_OFFSET+OFFSET_CLIP, ESP)
+#define ARG_OR		REGOFF(FRAME_OFFSET+OFFSET_OR, ESP)
+#define ARG_AND		REGOFF(FRAME_OFFSET+OFFSET_AND, ESP)
+
+#endif