| 1 | /* $Id: common_x86.c,v 1.3 2000-05-23 20:40:25 jeroen 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: 3.3
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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 | * Check CPU capabilities & initialize optimized funtions for this particular
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| 30 | * processor.
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| 31 | *
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| 32 | * Written by Holger Waechtler <holger@akaflieg.extern.tu-berlin.de>
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| 33 | */
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| 34 |
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| 35 | #include "glheader.h"
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| 36 | #include "common_x86asm.h"
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| 37 |
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| 38 | #ifdef __WIN32OS2__
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| 39 | #include <cpuhlp.h>
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| 40 | #else
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| 41 | int gl_x86_cpu_features = 0;
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| 42 | #endif
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| 43 |
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| 44 | static void message(const char *msg)
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| 45 | {
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| 46 | if (getenv("MESA_DEBUG"))
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| 47 | fprintf(stderr, "%s\n", msg);
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| 48 | }
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| 49 |
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| 50 |
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| 51 | void gl_init_all_x86_asm (void)
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| 52 | {
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| 53 | #ifdef USE_X86_ASM
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| 54 |
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| 55 | #ifdef __WIN32OS2__
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| 56 | /* Odin specific - use 'built in' cpuhlp lib */
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| 57 | if(CPUFeatures & CPUID_FPU_PRESENT)
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| 58 | {
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| 59 | gl_init_x86_asm_transforms();
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| 60 | }
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| 61 |
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| 62 | #if defined(USE_3DNOW_ASM)
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| 63 | if(CPUFeatures /*& CPUID_3DNOW*/)
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| 64 | {
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| 65 | gl_init_3dnow_asm_transforms();
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| 66 | }
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| 67 | #endif /* USE_3DNOW_ASM */
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| 68 |
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| 69 | #else /* __WIN32OS2__ */
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| 70 | gl_x86_cpu_features = gl_identify_x86_cpu_features ();
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| 71 | gl_x86_cpu_features |= GL_CPU_AnyX86;
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| 72 |
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| 73 | if (getenv("MESA_NO_ASM") != 0)
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| 74 | gl_x86_cpu_features = 0;
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| 75 |
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| 76 | if (gl_x86_cpu_features & GL_CPU_GenuineIntel) {
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| 77 | message("GenuineIntel cpu detected.");
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| 78 | }
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| 79 |
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| 80 | if (gl_x86_cpu_features) {
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| 81 | gl_init_x86_asm_transforms ();
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| 82 | }
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| 83 |
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| 84 | #ifdef USE_MMX_ASM
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| 85 | if (gl_x86_cpu_features & GL_CPU_MMX) {
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| 86 | char *s = getenv( "MESA_NO_MMX" );
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| 87 | if (s == NULL) {
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| 88 | message("MMX cpu detected.");
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| 89 | } else {
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| 90 | gl_x86_cpu_features &= (~GL_CPU_MMX);
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| 91 | }
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| 92 | }
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| 93 | #endif /* USE_MMX_ASM */
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| 94 |
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| 95 |
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| 96 | #ifdef USE_3DNOW_ASM
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| 97 | if (gl_x86_cpu_features & GL_CPU_3Dnow) {
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| 98 | char *s = getenv( "MESA_NO_3DNOW" );
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| 99 | if (s == NULL) {
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| 100 | message("3Dnow cpu detected.");
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| 101 | gl_init_3dnow_asm_transforms ();
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| 102 | } else {
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| 103 | gl_x86_cpu_features &= (~GL_CPU_3Dnow);
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| 104 | }
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| 105 | }
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| 106 | #endif /* USE_3DNOW_ASM */
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| 107 |
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| 108 | #endif /* __WIN32OS2__ */
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| 109 |
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| 110 | #endif /* USE_X86_ASM */
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| 111 | }
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| 112 |
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