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/* $Id: common_x86.c,v 1.6.4.2 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.
*/
/*
* Check CPU capabilities & initialize optimized funtions for this particular
* processor.
*
* Written by Holger Waechtler <holger@akaflieg.extern.tu-berlin.de>
* Changed by Andre Werthmann <wertmann@cs.uni-potsdam.de> for using the
* new Katmai functions.
*/
#include <stdlib.h>
#include <stdio.h>
#include "common_x86_asm.h"
int gl_x86_cpu_features = 0;
/* No reason for this to be public.
*/
extern int gl_identify_x86_cpu_features( void );
static void message( const char *msg )
{
if ( getenv( "MESA_DEBUG" ) ) {
fprintf( stderr, "%s\n", msg );
}
}
void gl_init_all_x86_transform_asm( void )
{
#ifdef USE_X86_ASM
gl_x86_cpu_features = gl_identify_x86_cpu_features();
if ( getenv( "MESA_NO_ASM" ) ) {
gl_x86_cpu_features = 0;
}
if ( gl_x86_cpu_features ) {
gl_init_x86_transform_asm();
}
#ifdef USE_MMX_ASM
if ( cpu_has_mmx ) {
if ( getenv( "MESA_NO_MMX" ) == 0 ) {
message( "MMX cpu detected." );
} else {
gl_x86_cpu_features &= ~(X86_FEATURE_MMX);
}
}
#endif
#ifdef USE_3DNOW_ASM
if ( cpu_has_3dnow ) {
if ( getenv( "MESA_NO_3DNOW" ) == 0 ) {
message( "3Dnow cpu detected." );
gl_init_3dnow_transform_asm();
} else {
gl_x86_cpu_features &= ~(X86_FEATURE_3DNOW);
}
}
#endif
#ifdef USE_KATMAI_ASM
if ( cpu_has_xmm ) {
if ( getenv( "MESA_NO_KATMAI" ) == 0 ) {
message( "Katmai cpu detected." );
gl_init_katmai_transform_asm();
} else {
gl_x86_cpu_features &= ~(X86_FEATURE_XMM);
}
}
#endif
#endif
}
/* Note: the above function must be called before this one, so that
* gl_x86_cpu_features gets correctly initialized.
*/
void gl_init_all_x86_vertex_asm( void )
{
#ifdef USE_X86_ASM
if ( gl_x86_cpu_features ) {
gl_init_x86_vertex_asm();
}
#ifdef USE_3DNOW_ASM
if ( cpu_has_3dnow && getenv( "MESA_NO_3DNOW" ) == 0 ) {
gl_init_3dnow_vertex_asm();
}
#endif
#ifdef USE_KATMAI_ASM
if ( cpu_has_xmm && getenv( "MESA_NO_KATMAI" ) == 0 ) {
gl_init_katmai_vertex_asm();
}
#endif
#endif
}
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