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- Add MASM assembler files for MSVC x64 projects to support vm_x86 in x64 mode

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- Clean up ftol()/snapvector() mess
- Make use of SSE instructions for ftol()/snapvector() if available
- move ftol/snapvector pure assembler to inline assembler, this will add x86_64 and improve support for different calling conventions
- Set FPU control word at program startup to get consistent behaviour on all platforms
This commit is contained in:
Thilo Schulz 2011-06-13 09:56:39 +00:00
parent 471182cba0
commit 03201aff22
22 changed files with 540 additions and 460 deletions
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25
code/renderer/tr_shade_calc.c
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@ -27,7 +27,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#endif
#define WAVEVALUE( table, base, amplitude, phase, freq ) ((base) + table[ myftol( ( ( (phase) + tess.shaderTime * (freq) ) * FUNCTABLE_SIZE ) ) & FUNCTABLE_MASK ] * (amplitude))
#define WAVEVALUE( table, base, amplitude, phase, freq ) ((base) + table[ Q_ftol( ( ( (phase) + tess.shaderTime * (freq) ) * FUNCTABLE_SIZE ) ) & FUNCTABLE_MASK ] * (amplitude))
static float *TableForFunc( genFunc_t func )
{
@ -699,7 +699,7 @@ void RB_CalcWaveColor( const waveForm_t *wf, unsigned char *dstColors )
glow = 1;
}
v = myftol( 255 * glow );
v = Q_ftol(255 * glow);
color[0] = color[1] = color[2] = v;
color[3] = 255;
v = *(int *)color;
@ -1018,21 +1018,6 @@ void RB_CalcRotateTexCoords( float degsPerSecond, float *st )
}
#if id386 && !defined(__GNUC__)
long myftol( float f ) {
static int tmp;
__asm fld f
__asm fistp tmp
__asm mov eax, tmp
}
#endif
/*
** RB_CalcSpecularAlpha
**
@ -1195,19 +1180,19 @@ static void RB_CalcDiffuseColor_scalar( unsigned char *colors )
*(int *)&colors[i*4] = ambientLightInt;
continue;
}
j = myftol( ambientLight[0] + incoming * directedLight[0] );
j = Q_ftol(ambientLight[0] + incoming * directedLight[0]);
if ( j > 255 ) {
j = 255;
}
colors[i*4+0] = j;
j = myftol( ambientLight[1] + incoming * directedLight[1] );
j = Q_ftol(ambientLight[1] + incoming * directedLight[1]);
if ( j > 255 ) {
j = 255;
}
colors[i*4+1] = j;
j = myftol( ambientLight[2] + incoming * directedLight[2] );
j = Q_ftol(ambientLight[2] + incoming * directedLight[2]);
if ( j > 255 ) {
j = 255;
}