| 1 | /* $Id: 3dnow.h,v 1.1 2000-02-29 00:48:23 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Mesa 3-D graphics library
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| 5 | * Version: 3.1
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| 6 | *
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| 7 | * Copyright (C) 1999 Brian Paul All Rights Reserved.
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 10 | * copy of this software and associated documentation files (the "Software"),
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| 11 | * to deal in the Software without restriction, including without limitation
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the
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| 14 | * Software is furnished to do so, subject to the following conditions:
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| 15 | *
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| 16 | * The above copyright notice and this permission notice shall be included
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| 17 | * in all copies or substantial portions of the Software.
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| 18 | *
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*
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| 29 | * 3DNow! optimizations contributed by
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| 30 | * Holger Waechtler <holger@akaflieg.extern.tu-berlin.de>
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| 31 | */
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| 32 |
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| 33 |
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| 34 | #ifndef _3dnow_h
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| 35 | #define _3dnow_h
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| 36 |
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| 37 |
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| 38 |
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| 39 | #include "xform.h"
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| 40 |
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| 41 |
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| 42 | void gl_init_3dnow_asm_transforms (void);
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| 43 |
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| 44 |
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| 45 |
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| 46 |
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| 47 | #if 0
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| 48 | GLvector4f *gl_project_points( GLvector4f *proj_vec,
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| 49 | const GLvector4f *clip_vec )
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| 50 | {
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| 51 | __asm__ (
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| 52 | " femms \n"
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| 53 | " \n"
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| 54 | " movq (%0), %%mm0 # x1 | x0 \n"
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| 55 | " movq 8(%0), %%mm1 # oow | x2 \n"
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| 56 | " \n"
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| 57 | "1: movq %%mm1, %%mm2 # oow | x2 \n"
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| 58 | " addl %2, %0 # next point \n"
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| 59 | " \n"
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| 60 | " punpckhdq %%mm2, %%mm2 # oow | oow \n"
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| 61 | " addl $16, %1 # next point \n"
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| 62 | " \n"
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| 63 | " pfrcp %%mm2, %%mm3 # 1/oow | 1/oow \n"
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| 64 | " decl %3 \n"
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| 65 | " \n"
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| 66 | " pfmul %%mm3, %%mm0 # x1/oow | x0/oow \n"
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| 67 | " movq %%mm0, -16(%1) # write r0, r1 \n"
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| 68 | " \n"
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| 69 | " pfmul %%mm3, %%mm1 # 1 | x2/oow \n"
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| 70 | " movq (%0), %%mm0 # x1 | x0 \n"
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| 71 | " \n"
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| 72 | " movd %%mm1, 8(%1) # write r2 \n"
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| 73 | " movd %%mm3, 12(%1) # write r3 \n"
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| 74 | " \n"
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| 75 | " movq 8(%0), %%mm1 # oow | x2 \n"
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| 76 | " ja 1b \n"
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| 77 | " \n"
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| 78 | " femms \n"
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| 79 | " "
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| 80 | ::"a" (clip_vec->start),
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| 81 | "c" (proj_vec->start),
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| 82 | "g" (clip_vec->stride),
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| 83 | "d" (clip_vec->count)
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| 84 | );
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| 85 |
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| 86 | proj_vec->flags |= VEC_SIZE_4;
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| 87 | proj_vec->size = 3;
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| 88 | proj_vec->count = clip_vec->count;
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| 89 | return proj_vec;
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| 90 | }
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| 91 | #endif
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| 92 |
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| 93 |
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| 94 |
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| 95 | #endif
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