1 files changed, 95 insertions, 0 deletions
diff --git a/src/mesa/x86/3dnow.h b/src/mesa/x86/3dnow.h
new file mode 100644
index 00000000000..b06cc5b2881
--- /dev/null
+++ b/src/mesa/x86/3dnow.h
@@ -0,0 +1,95 @@
+/* $Id: 3dnow.h,v 1.1 1999/08/19 00:55:42 jtg Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.1
+ * 
+ * Copyright (C) 1999  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.
+ */
+
+
+/*
+ * 3DNow! optimizations contributed by
+ * Holger Waechtler <[email protected]>
+ */
+
+
+#ifndef _3dnow_h
+#define _3dnow_h
+
+
+
+#include "xform.h"
+
+
+void gl_init_3dnow_asm_transforms (void);
+
+
+
+
+#if 0
+GLvector4f *gl_project_points( GLvector4f *proj_vec,
+                               const GLvector4f *clip_vec )
+{
+   __asm__ (
+   "   femms                                                              \n"
+   "                                                                      \n"
+   "   movq       (%0),     %%mm0      # x1             | x0              \n"
+   "   movq       8(%0),    %%mm1      # oow            | x2              \n"
+   "                                                                      \n"
+   "1: movq       %%mm1,    %%mm2      # oow            | x2              \n"
+   "   addl       %2,       %0         # next point                       \n"
+   "                                                                      \n"
+   "   punpckhdq  %%mm2,    %%mm2      # oow            | oow             \n"
+   "   addl       $16,      %1         # next point                       \n"
+   "                                                                      \n"
+   "   pfrcp      %%mm2,    %%mm3      # 1/oow          | 1/oow           \n"
+   "   decl       %3                                                      \n"
+   "                                                                      \n"
+   "   pfmul      %%mm3,    %%mm0      # x1/oow         | x0/oow          \n"
+   "   movq       %%mm0,    -16(%1)    # write r0, r1                     \n"
+   "                                                                      \n"
+   "   pfmul      %%mm3,    %%mm1      # 1              | x2/oow          \n"
+   "   movq       (%0),     %%mm0      # x1             | x0              \n"
+   "                                                                      \n"
+   "   movd       %%mm1,    8(%1)      # write r2                         \n"
+   "   movd       %%mm3,    12(%1)     # write r3                         \n"
+   "                                                                      \n"
+   "   movq       8(%0),    %%mm1      # oow            | x2              \n"
+   "   ja         1b                                                      \n"
+   "                                                                      \n"
+   "   femms                                                              \n"
+   "                                                                        "
+   ::"a" (clip_vec->start),
+   "c" (proj_vec->start),
+   "g" (clip_vec->stride),
+   "d" (clip_vec->count)
+   );
+
+   proj_vec->flags |= VEC_SIZE_4;
+   proj_vec->size = 3;
+   proj_vec->count = clip_vec->count;
+   return proj_vec;
+}
+#endif
+
+
+
+#endif