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Shinovon 2026-04-22 07:30:27 +05:00
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src/math/math.cpp Normal file
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#include "common.h"
#include "VuVector.h"
// TODO: move more stuff into here
void TransformPoint(CVuVector &out, const CMatrix &mat, const CVuVector &in)
{
#ifdef GTA_PS2
__asm__ __volatile__("\n\
lqc2 vf01,0x0(%2)\n\
lqc2 vf02,0x0(%1)\n\
lqc2 vf03,0x10(%1)\n\
lqc2 vf04,0x20(%1)\n\
lqc2 vf05,0x30(%1)\n\
vmulax.xyz ACC, vf02,vf01\n\
vmadday.xyz ACC, vf03,vf01\n\
vmaddaz.xyz ACC, vf04,vf01\n\
vmaddw.xyz vf06,vf05,vf00\n\
sqc2 vf06,0x0(%0)\n\
": : "r" (&out) , "r" (&mat) ,"r" (&in): "memory");
#else
out = mat * in;
#endif
}
void TransformPoint(CVuVector &out, const CMatrix &mat, const RwV3d &in)
{
#ifdef GTA_PS2
__asm__ __volatile__("\n\
ldr $8,0x0(%2)\n\
ldl $8,0x7(%2)\n\
lw $9,0x8(%2)\n\
pcpyld $10,$9,$8\n\
qmtc2 $10,vf01\n\
lqc2 vf02,0x0(%1)\n\
lqc2 vf03,0x10(%1)\n\
lqc2 vf04,0x20(%1)\n\
lqc2 vf05,0x30(%1)\n\
vmulax.xyz ACC, vf02,vf01\n\
vmadday.xyz ACC, vf03,vf01\n\
vmaddaz.xyz ACC, vf04,vf01\n\
vmaddw.xyz vf06,vf05,vf00\n\
sqc2 vf06,0x0(%0)\n\
": : "r" (&out) , "r" (&mat) ,"r" (&in): "memory");
#else
out = mat * in;
#endif
}
void TransformPoints(CVuVector *out, int n, const CMatrix &mat, const RwV3d *in, int stride)
{
#ifdef GTA_PS3
__asm__ __volatile__("\n\
paddub $3,%4,$0\n\
lqc2 vf02,0x0(%2)\n\
lqc2 vf03,0x10(%2)\n\
lqc2 vf04,0x20(%2)\n\
lqc2 vf05,0x30(%2)\n\
ldr $8,0x0(%3)\n\
ldl $8,0x7(%3)\n\
lw $9,0x8(%3)\n\
pcpyld $10,$9,$8\n\
qmtc2 $10,vf01\n\
1: vmulax.xyz ACC, vf02,vf01\n\
vmadday.xyz ACC, vf03,vf01\n\
vmaddaz.xyz ACC, vf04,vf01\n\
vmaddw.xyz vf06,vf05,vf00\n\
add %3,%3,$3\n\
ldr $8,0x0(%3)\n\
ldl $8,0x7(%3)\n\
lw $9,0x8(%3)\n\
pcpyld $10,$9,$8\n\
qmtc2 $10,vf01\n\
addi %1,%1,-1\n\
addiu %0,%0,0x10\n\
sqc2 vf06,-0x10(%0)\n\
bnez %1,1b\n\
": : "r" (out) , "r" (n), "r" (&mat), "r" (in), "r" (stride): "memory");
#else
while(n--){
*out = mat * *in;
in = (RwV3d*)((uint8*)in + stride);
out++;
}
#endif
}
void TransformPoints(CVuVector *out, int n, const CMatrix &mat, const CVuVector *in)
{
#ifdef GTA_PS2
__asm__ __volatile__("\n\
lqc2 vf02,0x0(%2)\n\
lqc2 vf03,0x10(%2)\n\
lqc2 vf04,0x20(%2)\n\
lqc2 vf05,0x30(%2)\n\
lqc2 vf01,0x0(%3)\n\
nop\n\
1: vmulax.xyz ACC, vf02,vf01\n\
vmadday.xyz ACC, vf03,vf01\n\
vmaddaz.xyz ACC, vf04,vf01\n\
vmaddw.xyz vf06,vf05,vf00\n\
lqc2 vf01,0x10(%3)\n\
addiu %3,%3,0x10\n\
addi %1,%1,-1\n\
addiu %0,%0,0x10\n\
sqc2 vf06,-0x10(%0)\n\
bnez %1,1b\n\
": : "r" (out) , "r" (n), "r" (&mat) ,"r" (in): "memory");
#else
while(n--){
*out = mat * *in;
in++;
out++;
}
#endif
}