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/* $Id: x86-64.c,v 1.4 2006/10/17 17:03:21 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 6.3
*
* Copyright (C) 1999-2003 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.
*/
/*
* x86-64 optimizations shamelessy converted from x86/sse/3dnow assembly by
* Mikko Tiihonen
*/
#ifdef USE_X86_64_ASM
#include "glheader.h"
#include "context.h"
#include "math/m_xform.h"
#include "tnl/t_context.h"
#include "x86-64.h"
#include "../x86/common_x86_macros.h"
#ifdef DEBUG
#include "math/m_debug.h"
#endif
extern void _mesa_x86_64_cpuid(unsigned int *regs);
DECLARE_XFORM_GROUP( x86_64, 4 )
DECLARE_XFORM_GROUP( 3dnow, 4 )
#else
/* just to silence warning below */
#include "x86-64.h"
#endif
/*
extern void _mesa_x86_64_transform_points4_general( XFORM_ARGS );
extern void _mesa_x86_64_transform_points4_identity( XFORM_ARGS );
extern void _mesa_x86_64_transform_points4_perspective( XFORM_ARGS );
extern void _mesa_x86_64_transform_points4_3d( XFORM_ARGS );
extern void _mesa_x86_64_transform_points4_3d_no_rot( XFORM_ARGS );
extern void _mesa_x86_64_transform_points4_2d_no_rot( XFORM_ARGS );
extern void _mesa_x86_64_transform_points4_2d( XFORM_ARGS );
*/
#ifdef USE_X86_64_ASM
static void message( const char *msg )
{
GLboolean debug;
#ifdef DEBUG
debug = GL_TRUE;
#else
if ( _mesa_getenv( "MESA_DEBUG" ) ) {
debug = GL_TRUE;
} else {
debug = GL_FALSE;
}
#endif
if ( debug ) {
_mesa_debug( NULL, "%s", msg );
}
}
#endif
void _mesa_init_all_x86_64_transform_asm(void)
{
#ifdef USE_X86_64_ASM
unsigned int regs[4];
if ( _mesa_getenv( "MESA_NO_ASM" ) ) {
return;
}
message("Initializing x86-64 optimizations\n");
_mesa_transform_tab[4][MATRIX_GENERAL] =
_mesa_x86_64_transform_points4_general;
_mesa_transform_tab[4][MATRIX_IDENTITY] =
_mesa_x86_64_transform_points4_identity;
_mesa_transform_tab[4][MATRIX_3D] =
_mesa_x86_64_transform_points4_3d;
regs[0] = 0x80000001;
regs[1] = 0x00000000;
regs[2] = 0x00000000;
regs[3] = 0x00000000;
_mesa_x86_64_cpuid(regs);
if (regs[3] & (1U << 31)) {
message("3Dnow! detected\n");
_mesa_transform_tab[4][MATRIX_3D_NO_ROT] =
_mesa_3dnow_transform_points4_3d_no_rot;
_mesa_transform_tab[4][MATRIX_PERSPECTIVE] =
_mesa_3dnow_transform_points4_perspective;
_mesa_transform_tab[4][MATRIX_2D_NO_ROT] =
_mesa_3dnow_transform_points4_2d_no_rot;
_mesa_transform_tab[4][MATRIX_2D] =
_mesa_3dnow_transform_points4_2d;
}
#ifdef DEBUG_MATH
_math_test_all_transform_functions("x86_64");
_math_test_all_cliptest_functions("x86_64");
_math_test_all_normal_transform_functions("x86_64");
#endif
#endif
}
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