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lights.c
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lights.c
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/*===================================================================
* l i g h t s . c
* All routines to do with Lights...
===================================================================*/
#include <stdio.h>
#include "new3d.h"
#include "quat.h"
#include "compobjects.h"
#include "bgobjects.h"
#include "object.h"
#include "networking.h"
#include "lights.h"
#include "water.h"
#include "visi.h"
#include "text.h"
#include "main.h"
#include "util.h"
#ifdef OPT_ON
#pragma optimize( "gty", on )
#endif
#undef TESTING_SUBTRACTIVE
/*===================================================================
Externals...
===================================================================*/
extern bool ShowPlaneRGB;
extern float WhiteOut;
extern u_int16_t NumGroupsVisible;
extern u_int16_t GroupsVisible[MAXGROUPS];
extern int16_t ShowPortal;
extern int NumOfVertsConsidered;
extern int NumOfVertsTouched;
extern float framelag;
extern float SoundInfo[MAXGROUPS][MAXGROUPS];
extern u_int16_t GroupWaterInfo[MAXGROUPS];
extern float GroupWaterLevel[MAXGROUPS];
extern float GroupWaterIntensity_Red[MAXGROUPS];
extern float GroupWaterIntensity_Green[MAXGROUPS];
extern float GroupWaterIntensity_Blue[MAXGROUPS];
extern bool BrightShips;
extern CAMERA CurrentCamera;
void PrintInitViewStatus( BYTE Status );
/*===================================================================
Globals...
===================================================================*/
COLOR GroupColours[ 8 ] = {
RGBA_MAKE( 0,128,0,255 ),
RGBA_MAKE( 0,0,128,255 ),
RGBA_MAKE( 0,128,128,255 ),
RGBA_MAKE( 128,128,0,255 ),
RGBA_MAKE( 128,0,128,255 ),
RGBA_MAKE( 128,128,128,255 ),
RGBA_MAKE( 64,128,64,255 ),
RGBA_MAKE( 128,64,64,255 )
};
XLIGHT * FirstLightVisible = NULL;
XLIGHT XLights[MAXXLIGHTS];
u_int16_t FirstXLightUsed;
u_int16_t FirstXLightFree;
WORD status;
DWORD chop_status;
/*===================================================================
Floating Point Cull Mode
===================================================================*/
#ifdef USEASM
__inline
void start_chop(void)
{
__asm
{
fstcw word ptr status
mov eax,dword ptr status
or eax,3072
mov dword ptr chop_status,eax
fldcw word ptr chop_status
}
}
__inline
void end_chop(void)
{
__asm
{
fldcw word ptr status
}
}
#endif
/*===================================================================
Procedure : Set up And Init all XLights
Input : nothing
Output : nothing
===================================================================*/
void InitXLights()
{
u_int16_t i;
FirstXLightUsed = (u_int16_t) -1;
FirstXLightFree = 0;
for( i = 0 ; i < MAXXLIGHTS ; i++ )
{
XLights[i].Index = i;
XLights[i].Next = i + 1;
XLights[i].Prev = (u_int16_t) -1;
XLights[i].Type = POINT_LIGHT;
}
XLights[MAXXLIGHTS-1].Next = (u_int16_t) -1;
}
/*===================================================================
Procedure : Find a free light and move it from the free list to
the used list
Input : nothing
Output : u_int16_t number of light free....
===================================================================*/
u_int16_t FindFreeXLight()
{
u_int16_t i;
i = FirstXLightFree;
if ( i == (u_int16_t) -1)
return i;
XLights[i].Prev = FirstXLightUsed;
if ( FirstXLightUsed != (u_int16_t) -1)
{
XLights[FirstXLightUsed].Next = i;
}
FirstXLightUsed = i;
FirstXLightFree = XLights[i].Next;
XLights[i].Type = POINT_LIGHT;
XLights[i].Visible = true;
return i ;
}
/*===================================================================
Procedure : Kill a used light and move it from the used list to
the free list
Input : u_int16_t number of light free....
Output : nothing
===================================================================*/
void KillUsedXLight( u_int16_t light )
{
u_int16_t its_prev;
u_int16_t its_next;
its_prev = XLights[light].Prev;
its_next = XLights[light].Next;
if ( light == FirstXLightUsed )
FirstXLightUsed = XLights[light].Prev;
if( its_prev != (u_int16_t) -1)
XLights[its_prev].Next = its_next;
if( its_next != (u_int16_t) -1)
XLights[its_next].Prev = its_prev;
XLights[light].Prev = (u_int16_t) -1;
XLights[light].Next = FirstXLightFree;
FirstXLightFree = light;
}
/*===================================================================
Procedure : Process all XLights
Input : nothing
Output : nothing
===================================================================*/
bool ProcessXLights( MLOADHEADER * Mloadheader )
{
u_int16_t light;
u_int16_t oldlight;
light = FirstXLightUsed;
while( light != (u_int16_t ) -1 )
{
oldlight = XLights[light].Prev;
if( XLights[light].SizeCount != 0.0F )
{
XLights[light].Size -= XLights[light].SizeCount * framelag;
XLights[light].r -= XLights[light].ColorCount * framelag;
XLights[light].g -= XLights[light].ColorCount * framelag;
XLights[light].b -= XLights[light].ColorCount * framelag;
if( XLights[light].r <= 0.0F )
XLights[light].r = 0.0F;
if( XLights[light].g <= 0.0F )
XLights[light].g = 0.0F;
if( XLights[light].b <= 0.0F )
XLights[light].b = 0.0F;
if( XLights[light].Size <= 0.0F)
KillUsedXLight(light);
}
light = oldlight;
}
return true;
}
/*===================================================================
* cause a light to go red and get smaller then die...
===================================================================*/
void SetLightDie ( u_int16_t light )
{
XLights[light].SizeCount = 50.0F;
XLights[light].ColorCount = 2.0F;
XLights[light].r = 255.0F;
XLights[light].g = 0.0F;
XLights[light].b = 0.0F;
}
/*===================================================================
Procedure : Xlight 1 Group Only...
Input : nothing
Output : nothing
===================================================================*/
float cral = 0.0F;
bool XLight1Group( MLOADHEADER * Mloadheader, u_int16_t group )
{
XLIGHT * XLightPnt;
float blf;
float glf;
float rlf;
VECTOR Temp;
VECTOR CellIndex;
float distance;
int execbuf;
int vert;
LPLVERTEX lpPointer = NULL;
LPLVERTEX lpLVERTEX = NULL;
LPLVERTEX lpLVERTEX2 = NULL;
COLOR col;
VERTEXCELL * VertexCellPnt;
u_int16_t * VertexIndexPnt;
u_int16_t * OrgVertexIndexPnt;
int Cell;
int CellIndex_x;
int CellIndex_y;
int CellIndex_z;
int CellRange_x;
int CellRange_y;
int CellRange_z;
int Cellx;
int Celly;
int Cellz;
int NumOfxCells;
int NumOfyCells;
int NumOfzCells;
float CellSize;
float Size,OSize;
float SizeX2;
float x,y,z;
float Posx,Posy,Posz;
float Dirx = 0.0f, Diry = 0.0f, Dirz = 0.0f;
float Cosa,CosArc = 0.0f;
float rlen;
float intense;
u_int32_t tempiR;
u_int32_t tempiG;
u_int32_t tempiB;
u_int32_t tempiA;
float centerx;
float centery;
float centerz;
float half_sizex;
float half_sizey;
float half_sizez;
u_int32_t inc;
u_int32_t carry;
u_int32_t clamp;
u_int32_t r,g,b,intWhiteOut;
POLYANIM * PolyAnim;
int i,e;
u_int32_t * u_int32Pnt;
TANIMUV * TanimUV;
float intensity;
#ifdef NEW_LIGHTING
render_lighting_enabled = 1;
render_lighting_point_lights_only = 0;
if( WhiteOut != 0.0f )
render_lighting_env_whiteout = (int) WhiteOut;
if(GroupWaterInfo[group] != WATERSTATE_NOWATER)
{
render_lighting_env_water = 1;
if( GroupWaterInfo[group] != WATERSTATE_ALLWATER )
{
render_lighting_env_water = 2;
render_lighting_env_water_level = GroupWaterLevel[group];
}
render_lighting_env_water_red = GroupWaterIntensity_Red[group];
render_lighting_env_water_green = GroupWaterIntensity_Green[group];
render_lighting_env_water_blue= GroupWaterIntensity_Blue[group];
}
return true;
#endif
intWhiteOut = (int)WhiteOut;
if( intWhiteOut >= 256 )
{
intWhiteOut = (256 - (intWhiteOut-256) );
}
CellSize = Mloadheader->CellSize;
execbuf = Mloadheader->Group[group].num_execbufs;
while( execbuf--)
{
if (!(FSLockVertexBuffer((RENDEROBJECT*)&Mloadheader->Group[group].renderObject[execbuf], &lpPointer)))
{
return false;
}
// lpPointer = (LPLVERTEX) debDesc.lpData;
VertexCellPnt = Mloadheader->Group[group].vertex_cell_pnt[execbuf];
OrgVertexIndexPnt = Mloadheader->Group[group].vertex_index_pnt[execbuf];
NumOfxCells = Mloadheader->Group[group].xcells[execbuf];
NumOfyCells = Mloadheader->Group[group].ycells[execbuf];
NumOfzCells = Mloadheader->Group[group].zcells[execbuf];
if( Mloadheader->Group[group].num_animating_polys[execbuf] != 0 )
{
PolyAnim = Mloadheader->Group[group].polyanim[execbuf];
for( i = 0 ; i < Mloadheader->Group[group].num_animating_polys[execbuf] ; i++ )
{
if( PolyAnim->currentframe != PolyAnim->newframe )
{
// something has changed....
u_int32Pnt = (u_int32_t*)PolyAnim->vert;
for( e = 0 ; e < PolyAnim->vertices ; e++ )
{
lpLVERTEX = lpPointer+ *u_int32Pnt++;
TanimUV = PolyAnim->UVs;
TanimUV += e + (PolyAnim->vertices * PolyAnim->newframe);
lpLVERTEX->tu = TanimUV->u;
lpLVERTEX->tv = TanimUV->v;
}
PolyAnim->currentframe = PolyAnim->newframe;
}
PolyAnim++;
}
}
lpLVERTEX = lpPointer;
{
lpLVERTEX2 = Mloadheader->Group[group].originalVerts[execbuf];
vert = Mloadheader->Group[group].num_verts_per_execbuf[execbuf];
if( GroupWaterInfo[group] == WATERSTATE_NOWATER || ShowPlaneRGB )
{
if( WhiteOut == 0.0F )
{
#ifdef USEASM
__asm
{
mov eax, DWORD PTR ShowPlaneRGB
or eax, eax
jnz useplanergb
mov esi, [lpLVERTEX2]
add esi,16
jmp go
useplanergb:
mov esi, [lpLVERTEX2]
add esi,12
go:
mov edi, [lpLVERTEX]
add edi,16
mov ecx, vert
clear: mov eax, [esi]
add esi, 32
mov [edi],eax
add edi, 32
dec ecx
jnz clear
}
#else //USEASM
if ( ShowPlaneRGB )
{
while( vert --)
{
// lpLVERTEX->color = (COLOR) lpLVERTEX2->dwReserved;
lpLVERTEX++;
lpLVERTEX2++;
}
}
else
{
while( vert --)
{
lpLVERTEX->color = lpLVERTEX2->color;
lpLVERTEX++;
lpLVERTEX2++;
}
}
#endif //USEASM
}
else
{
// Special Lighting effects
while( vert --)
{
x = (float)((int) (lpLVERTEX2->x * 0.35F) % 360);
y = (float)((int) (lpLVERTEX2->y * 0.35F) % 360);
z = (float)((int) (lpLVERTEX2->z * 0.35F) % 360);
// distance = (float) sqrt( (x*x) + (y*y) + (z*z) );
col = lpLVERTEX2->color;
col &= 0xffff;
// tal = 128.0F + 127.0F * (float) sin( (distance+cral) * (PI / 180.0F ) );
b = (int) ( ( sin( D2R( x + cral ) ) + sin( D2R( y + cral ) ) + sin( D2R( z + cral ) ) ) * 127.0F * 0.3333333F + 128.0F ) ;
b+= intWhiteOut;
if( b > 255 )
b = 255;
col |= (b<<24)+(b<<16);
lpLVERTEX->color = col;
lpLVERTEX++;
lpLVERTEX2++;
}
}
}else if( GroupWaterInfo[group] == WATERSTATE_ALLWATER )
{
// ****************** Full Water Effect ********************************
lpLVERTEX2 = Mloadheader->Group[group].originalVerts[execbuf];
lpLVERTEX = lpPointer;
vert = Mloadheader->Group[group].num_verts_per_execbuf[execbuf];
// Special Lighting effects
while( vert --)
{
x = (float)((int) (lpLVERTEX2->x * 0.35F) % 360);
y = (float)((int) (lpLVERTEX2->y * 0.35F) % 360);
z = (float)((int) (lpLVERTEX2->z * 0.35F) % 360);
col = lpLVERTEX2->color;
r = RGBA_GETRED(col);
g = RGBA_GETGREEN(col);
b = RGBA_GETBLUE(col);
r >>=2;
g >>=2;
b >>=2;
intensity = (float) ( ( sin( D2R( x + cral ) ) + sin( D2R( y + cral ) ) + sin( D2R( z + cral ) ) ) * 127.0F * 0.3333333F + 128.0F ) ;
r += (int) (GroupWaterIntensity_Red[group] * intensity);
if( r > 255 )
r = 255;
g += (int) (GroupWaterIntensity_Green[group] * intensity);
if( g > 255 )
g = 255;
b += (int) (GroupWaterIntensity_Blue[group] * intensity);
if( b > 255 )
b = 255;
lpLVERTEX->color = RGBA_MAKE( r ,g ,b , 128 );
lpLVERTEX++;
lpLVERTEX2++;
}
// ****************** End of Water Effect ******************************
}else{
// ****************** Partial Water Effect ******************************
lpLVERTEX2 = Mloadheader->Group[group].originalVerts[execbuf];
lpLVERTEX = lpPointer;
vert = Mloadheader->Group[group].num_verts_per_execbuf[execbuf];
// Special Lighting effects
while( vert --)
{
if( lpLVERTEX2->y < GroupWaterLevel[group] )
{
x = (float)((int) (lpLVERTEX2->x * 0.35F) % 360);
y = (float)((int) (lpLVERTEX2->y * 0.35F) % 360);
z = (float)((int) (lpLVERTEX2->z * 0.35F) % 360);
col = lpLVERTEX2->color;
r = RGBA_GETRED(col);
g = RGBA_GETGREEN(col);
b = RGBA_GETBLUE(col);
r >>=2;
g >>=2;
b >>=2;
intensity = (float) ( ( sin( D2R( x + cral ) ) + sin( D2R( y + cral ) ) + sin( D2R( z + cral ) ) ) * 127.0F * 0.3333333F + 128.0F ) ;
r += (int) (GroupWaterIntensity_Red[group] * intensity);
if( r > 255 )
r = 255;
g += (int) (GroupWaterIntensity_Green[group] * intensity);
if( g > 255 )
g = 255;
b += (int) (GroupWaterIntensity_Blue[group] * intensity);
if( b > 255 )
b = 255;
lpLVERTEX->color = RGBA_MAKE( r ,g ,b , 128 );
}else{
lpLVERTEX->color = lpLVERTEX2->color;
}
lpLVERTEX++;
lpLVERTEX2++;
}
// ****************** End of Water Effect ******************************
}
}
if( WhiteOut == 0.0F )
{
centerx = Mloadheader->Group[group].center.x;
centery = Mloadheader->Group[group].center.y;
centerz = Mloadheader->Group[group].center.z;
half_sizex = Mloadheader->Group[group].half_size.x;
half_sizey = Mloadheader->Group[group].half_size.y;
half_sizez = Mloadheader->Group[group].half_size.z;
XLightPnt = FirstLightVisible;
while( XLightPnt )
{
if( GroupsAreVisible( group, XLightPnt->Group ) )
{
Posx = XLightPnt->Pos.x;
Posy = XLightPnt->Pos.y;
Posz = XLightPnt->Pos.z;
OSize = XLightPnt->Size;
Temp.x = Posx - centerx;
if( Temp.x < 0.0F ) Temp.x *= -1.0F;
Temp.y = Posy - centery;
if( Temp.y < 0.0F ) Temp.y *= -1.0F;
Temp.z = Posz - centerz;
if( Temp.z < 0.0F ) Temp.z *= -1.0F;
if ( (Temp.x <= ( half_sizex + OSize ) ) &&
(Temp.y <= ( half_sizey + OSize ) ) &&
(Temp.z <= ( half_sizez + OSize ) ) )
{
SizeX2 = OSize * OSize;
Size = 1 / SizeX2;
rlf = XLightPnt->r;
glf = XLightPnt->g;
blf = XLightPnt->b;
/* bjd curr driver = 0 use to be software mode
if(!render_info.CurrDriver ) // is it ramp mode..
{
rlf = ( rlf+glf+blf ) * 0.33333F;
glf = rlf;
blf = glf;
}
*/
if( XLightPnt->Type == SPOT_LIGHT )
{
Dirx = XLightPnt->Dir.x;
Diry = XLightPnt->Dir.y;
Dirz = XLightPnt->Dir.z;
CosArc = XLightPnt->CosArc;
}
CellIndex.x = Posx - Mloadheader->Group[group].cell_origin[execbuf].x;
CellIndex.y = Posy - Mloadheader->Group[group].cell_origin[execbuf].y;
CellIndex.z = Posz - Mloadheader->Group[group].cell_origin[execbuf].z;
CellIndex_x = (int) floor( (CellIndex.x - OSize) * CellSize );
CellIndex_y = (int) floor( (CellIndex.y - OSize) * CellSize );
CellIndex_z = (int) floor( (CellIndex.z - OSize) * CellSize );
CellRange_x = (int) floor( (CellIndex.x + OSize) * CellSize );
CellRange_y = (int) floor( (CellIndex.y + OSize) * CellSize );
CellRange_z = (int) floor( (CellIndex.z + OSize) * CellSize );
if( CellIndex_x < 0 )
{
CellIndex_x = 0;
}else{
if( CellIndex_x >= NumOfxCells )
CellIndex_x = NumOfxCells-1;
}
if( CellIndex_y < 0 )
{
CellIndex_y = 0;
}else{
if( CellIndex_y >= NumOfyCells )
CellIndex_y = NumOfyCells-1;
}
if( CellIndex_z < 0 )
{
CellIndex_z = 0;
}else{
if( CellIndex_z >= NumOfzCells )
CellIndex_z = NumOfzCells-1;
}
if( CellRange_x < 0 )
{
CellRange_x = 0;
}else{
if( CellRange_x >= NumOfxCells )
CellRange_x = NumOfxCells-1;
}
if( CellRange_y < 0 )
{
CellRange_y = 0;
}else{
if( CellRange_y >=NumOfyCells )
CellRange_y = NumOfyCells-1;
}
if( CellRange_z < 0 )
{
CellRange_z = 0;
}else{
if( CellRange_z >= NumOfzCells )
CellRange_z = NumOfzCells-1;
}
switch( XLightPnt->Type )
{
case POINT_LIGHT:
Cellz = CellIndex_z;
#ifdef USEASM
start_chop();
#endif //USEASM
while( Cellz <= CellRange_z )
{
Celly = CellIndex_y;
while( Celly <= CellRange_y )
{
Cell = ( CellIndex_x + NumOfxCells *
( Celly + NumOfyCells *
Cellz ) );
Cellx = CellRange_x - CellIndex_x + 1;
while( Cellx-- )
{
VertexIndexPnt = OrgVertexIndexPnt+VertexCellPnt[Cell].start_vert_in_cell;
vert = VertexCellPnt[Cell].num_verts_in_cell;
while( vert-- )
{
// NumOfVertsConsidered++;
lpLVERTEX = lpPointer + *VertexIndexPnt++;
/* find the distance from vert to light */
x = lpLVERTEX->x;
y = lpLVERTEX->y;
z = lpLVERTEX->z;
x -= Posx;
y -= Posy;
z -= Posz;
distance = (x*x) + (y*y) + (z*z);
// distance = 0.0F;
if ( distance < SizeX2 ) // float
{
// NumOfVertsTouched++;
distance = 1.0F - ( distance * Size ); // float
#ifdef USEASM
__asm
{
#if 1
fld rlf ;float load rlf
fmul distance ;float mul distance 2
fld blf ;float load blf
fmul distance ;float mul distance 1
fld glf ;float load glf
fmul distance ;float mul distance 0
fxch st(2)
fistp tempiR ;float int store tempiR
fxch st(1)
fistp tempiG ;float int store tempiG
fxch st(0)
fistp tempiB ;float int store tempiG
mov esi , [lpLVERTEX];set up the pointer
mov ecx , [esi+16] ;int ecx = col get the color
mov edi , ecx ; edi = col..
and ecx , 0x00ffffff ; and out the alpha
and edi , 0xff000000 ; keep the alpha for later
mov ebx , tempiR ;move the red into inc
mov edx , ecx ;edx = col
shl ebx , 8 ;shift it up 8 bits
or ebx , tempiG ;or in the green
shl ebx , 8 ;shift it up 8 bits
or ebx , tempiB ;or in the Blue
#else
fld rlf ;float load rlf
fmul distance ;float mul distance
mov esi , [lpLVERTEX];set up the pointer
fistp tempiR ;float int store tempiR
mov ecx , [esi+16] ;int ecx = col get the color
fld glf ;float load glf
fmul distance ;float mul distance
mov edi , ecx ; edi = col..
and ecx , 0x00ffffff ; and out the alpha
and edi , 0xff000000 ; keep the alpha for later
mov ebx , tempiR ;move the red into inc
fistp tempiG ;float int store tempiG
shl ebx , 8 ;shift it up 8 bits
fld blf ;float load blf
fmul distance ;float mul distance
or ebx , tempiG ;or in the green
mov edx , ecx ;edx = col
fistp tempiB ;float int store tempiG
shl ebx , 8 ;shift it up 8 bits
or ebx , tempiB ;or in the Blue
#endif
add ecx , ebx ;ecx = col + inc
xor edx , ebx ;edx = col ^ inc
xor edx , ecx ;edx = ( col + inc ) ^ ( col ^ inc )
and edx , 0x01010100 ;edx = carry = ( ( col + inc ) ^ ( col ^ inc ) ) & 0x01010100
mov eax , edx ;eax = carry
shr edx , 8 ;edx = ( carry >> 8 )
sub eax , edx ;eax = clamp = carry - ( carry >> 8 )
sub ecx , edx ;ecx = (col + inc) - carry
or ecx , eax ;col = ecx | clamp
or ecx , edi ; or back in the alpha..
mov [esi+16] , ecx ;int put the color back
// carry = ( ( col + inc ) ^ ( col ^ inc ) ) & 0x01010100;
// clamp = carry - ( carry >> 8 );
// col = ( col + inc - carry ) | clamp;
}
#else //USEASM
col = lpLVERTEX->color;
#ifdef TESTING_SUBTRACTIVE
tempiA = col & 0xff000000;
// for subtraction, simply add the negative
tempiR = ( (int) -( rlf * distance ) ) & 0xFF;
tempiG = ( (int) -( glf * distance ) ) & 0xFF;
tempiB = ( (int) -( blf * distance ) ) & 0xFF;
// so far so much nearly the same...
inc = ( tempiR << 16 ) + ( tempiG << 8 ) + tempiB;
carry = ( ( col + inc ) ^ ( col ^ inc ) ) & 0x01010100;
col = col + inc - carry;
// set the carry also for those channels where we are subtracting 0 (this seems wrong!)
// where 0 components are detected by inverting the inc
// adding 1, and checking the carry out
inc = inc ^ 0x00FFFFFF;
carry |= ( ( inc + 0x00010101) ^ ( inc ^ 0x00010101 ) ) & 0x01010100;
// ...and now it's nearly the same as for additive saturation
clamp = carry - ( carry >> 8 );
col = ( col & clamp ) & 0x00ffffff;
col |= tempiA;
#else
tempiA = col & 0xff000000;
tempiR = (int) ( rlf * distance );
tempiG = (int) ( glf * distance );
tempiB = (int) ( blf * distance );
inc = ( tempiR << 16 ) + ( tempiG << 8 ) + tempiB;
carry = ( ( col + inc ) ^ ( col ^ inc ) ) & 0x01010100;
clamp = carry - ( carry >> 8 );
col = ( ( col + inc - carry ) | clamp) & 0x00ffffff;
col |= tempiA;
#endif
lpLVERTEX->color = col;
#endif //USEASM
}
}
Cell++;
}
Celly++;
}
Cellz++;
}
#ifdef USEASM
end_chop();
#endif
break;
case SPOT_LIGHT:
Cellz = CellIndex_z;
while( Cellz <= CellRange_z )
{
Celly = CellIndex_y;
while( Celly <= CellRange_y )
{
Cell = (u_int16_t) ( CellIndex_x + NumOfxCells *
( Celly + NumOfyCells *
Cellz ) );
Cellx = CellRange_x - CellIndex_x + 1;
while( Cellx-- )
{
VertexIndexPnt = OrgVertexIndexPnt+VertexCellPnt[Cell].start_vert_in_cell;
vert = VertexCellPnt[Cell].num_verts_in_cell;
while( vert-- )
{
// NumOfVertsConsidered++;
// lpLVERTEX = ((LPLVERTEX ) lpPointer) + *VertexIndexPnt++;
lpLVERTEX = lpPointer + *VertexIndexPnt++;
/* find the distance from vert to light */
x = lpLVERTEX->x - Posx;
y = lpLVERTEX->y - Posy;
z = lpLVERTEX->z - Posz;
//distance = (float) sqrt( (x*x) + (y*y) + (z*z));
distance = (x*x) + (y*y) + (z*z);
if ( distance < SizeX2 )
{
// NumOfVertsTouched++;
if( distance > 0.0F )
{
distance = (float) sqrt( distance );
rlen = 1.0F / distance;
x *= rlen;
y *= rlen;
z *= rlen;
}
Cosa = ( ( x*Dirx ) + ( y*Diry ) + ( z*Dirz ) );
if( distance > 0.5F * OSize )
{
if ( Cosa > CosArc )
{
// Lights Are Go....
intense = ( ( OSize - distance ) / ( 0.75F * OSize ) ) * ( ( Cosa - CosArc ) / ( 1.0F - CosArc ) );
}else{
continue;
}
}else if ( distance > MIN_LIGHT_SIZE ) {
float cosarc2;
cosarc2 = CosArc * ( 1.0F - ( ( OSize * 0.5F - distance ) / ( OSize * 0.5F - MIN_LIGHT_SIZE ) ) );
if ( Cosa > cosarc2 )
{
intense = ( ( OSize - distance ) / ( OSize - MIN_LIGHT_SIZE ) ) * ( ( Cosa - cosarc2 ) / ( 1.0F - cosarc2 ) );
}else{
continue;
}
}else {
if ( Cosa > 0.0F )
{
intense = 1.0F;
}else{
intense = 1.0F + Cosa;
}
}
col = lpLVERTEX->color; // int
tempiA = col & 0xff000000;
tempiR = (int) ( rlf * intense );
tempiG = (int) ( glf * intense );
tempiB = (int) ( blf * intense );
inc = ( tempiR << 16 ) + ( tempiG << 8 ) + tempiB;
carry = ( ( col + inc ) ^ ( col ^ inc ) ) & 0x01010100;
clamp = carry - ( carry >> 8 );
col = ( ( col + inc - carry ) | clamp) & 0x00ffffff;
col |= tempiA;
lpLVERTEX->color = col;
}
}
Cell++;
}
Celly++;
}
Cellz++;
}
break;
}
}
}
XLightPnt = XLightPnt->NextVisible;
}
}
/* unlock the execute buffer */
if(!FSUnlockVertexBuffer((RENDEROBJECT*)&Mloadheader->Group[group].renderObject[execbuf]))
return false;
}
return true;
}
/*===================================================================
Procedure : Xlight Mxloadheader...
Input : nothing
Output : nothing
===================================================================*/
bool XLightMxloadHeader( MXLOADHEADER * MXloadheader , VECTOR * Pos , float Radius , MATRIX * Matrix )
{
XLIGHT * XLightPnt;
VECTOR Temp;
float distance;
int group;
int execbuf;
int vert;
LPLVERTEX lpPointer = NULL;
LPLVERTEX lpLVERTEX = NULL;
LPLVERTEX lpLVERTEX2 = NULL;
COLOR col;
float Size,OSize;
float SizeX2;
float x,y,z;
float Posx,Posy,Posz;
float Dirx = 0.0f, Diry = 0.0f, Dirz = 0.0f;
float Cosa,CosArc = 0.0f;
float rlen;
float intense;
int tempiR;
int tempiG;
int tempiB;
int tempiA;
u_int32_t inc;
u_int32_t carry;
u_int32_t clamp;
float blf;
float glf;
float rlf;
#ifdef NEW_LIGHTING
render_lighting_enabled = 1;
render_lighting_point_lights_only = 0;
return true;
#endif
group = MXloadheader->num_groups;
while( group--)
{
execbuf = MXloadheader->Group[group].num_execbufs;
while( execbuf--)
{
if (!(FSLockVertexBuffer(&MXloadheader->Group[group].renderObject[execbuf], &lpPointer)))
{
return false;
}
// lpPointer = (LPLVERTEX) debDesc.lpData;
lpLVERTEX = lpPointer;
vert = MXloadheader->Group[group].num_verts_per_execbuf[execbuf];
lpLVERTEX2 = MXloadheader->Group[group].originalVerts[execbuf];
while( vert --)
{
lpLVERTEX->color = lpLVERTEX2->color;
lpLVERTEX++;
lpLVERTEX2++;
}
XLightPnt = FirstLightVisible;
while( XLightPnt )
{
{
Posx = XLightPnt->Pos.x;
Posy = XLightPnt->Pos.y;
Posz = XLightPnt->Pos.z;
OSize = XLightPnt->Size;
Temp.x = Posx - Pos->x;
if( Temp.x < 0.0F ) Temp.x *= -1.0F;
Temp.y = Posy - Pos->y;
if( Temp.y < 0.0F ) Temp.y *= -1.0F;
Temp.z = Posz - Pos->z;
if( Temp.z < 0.0F ) Temp.z *= -1.0F;
if ( (Temp.x <= ( Radius + OSize ) ) &&