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Copy pathtexture_env_combine.cpp
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texture_env_combine.cpp
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#include <windows.h>
#include "OpenGL.h"
#include "Combiner.h"
#include "texture_env_combine.h"
/* if ((i == COMBINED) && (OGL.ATIX_texture_env_route)) \
{ \
envCombiner->color[combinedUnit].outputTexture = GL_TEXTURE0_ARB + n; \
envCombiner->color[n].a.source = GL_PRIMARY_COLOR_NV; \
envCombiner->color[n].a.operand = GL_SRC_COLOR; \
} \
else if ((i == LOD_FRACTION) && (envCombiner->vertex.secondaryColor == COMBINED) && (OGL.ATIX_texture_env_route)) \
{ \
envCombiner->vertex.secondaryColor = LOD_FRACTION; \
envCombiner->color[n].a.source = GL_SECONDARY_COLOR_ATIX; \
envCombiner->color[n].a.operand = GL_SRC_COLOR; \
} \*/
#define SetColorCombinerArg( n, a, i ) \
if (TexEnvArgs[i].source == GL_CONSTANT_ARB) \
{ \
if ((i > 5) && ((envCombiner->alpha[n].constant == COMBINED) || (envCombiner->alpha[n].constant == i))) \
{ \
envCombiner->alpha[n].constant = i; \
envCombiner->color[n].a.source = GL_CONSTANT_ARB; \
envCombiner->color[n].a.operand = GL_SRC_ALPHA; \
} \
else if ((i > 5) && ((envCombiner->vertex.alpha == COMBINED) || (envCombiner->vertex.alpha == i))) \
{ \
envCombiner->vertex.alpha = i; \
envCombiner->color[n].a.source = GL_PRIMARY_COLOR_ARB; \
envCombiner->color[n].a.operand = GL_SRC_ALPHA; \
} \
else if ((envCombiner->color[n].constant == COMBINED) || (envCombiner->color[n].constant == i)) \
{ \
envCombiner->color[n].constant = i; \
envCombiner->color[n].a.source = GL_CONSTANT_ARB; \
envCombiner->color[n].a.operand = GL_SRC_COLOR; \
} \
else if (OGL.ATIX_texture_env_route && ((envCombiner->vertex.secondaryColor == COMBINED) || (envCombiner->vertex.secondaryColor == i))) \
{ \
envCombiner->vertex.secondaryColor = i; \
envCombiner->color[n].a.source = GL_SECONDARY_COLOR_ATIX; \
envCombiner->color[n].a.operand = GL_SRC_COLOR; \
} \
else if ((envCombiner->vertex.color == COMBINED) || (envCombiner->vertex.color == i))\
{ \
envCombiner->vertex.color = i; \
envCombiner->color[n].a.source = GL_PRIMARY_COLOR_ARB; \
envCombiner->color[n].a.operand = GL_SRC_COLOR; \
} \
} \
else \
{ \
envCombiner->color[n].a.source = TexEnvArgs[i].source; \
envCombiner->color[n].a.operand = TexEnvArgs[i].operand; \
}
#define SetColorCombinerValues( n, a, s, o ) \
envCombiner->color[n].a.source = s; \
envCombiner->color[n].a.operand = o
/* if ((TexEnvArgs[i].source == GL_PREVIOUS_ARB) && (OGL.ATIX_texture_env_route)) \
{ \
envCombiner->alpha[combinedUnit].outputTexture = GL_TEXTURE0_ARB + n; \
envCombiner->alpha[n].a.source = GL_TEXTURE0_ARB + n; \
envCombiner->alpha[n].a.operand = GL_SRC_ALPHA; \
} \
else*/
#define SetAlphaCombinerArg( n, a, i ) \
if (TexEnvArgs[i].source == GL_CONSTANT_ARB) \
{ \
if ((envCombiner->alpha[n].constant == COMBINED) || (envCombiner->alpha[n].constant == i)) \
{ \
envCombiner->alpha[n].constant = i; \
envCombiner->alpha[n].a.source = GL_CONSTANT_ARB; \
envCombiner->alpha[n].a.operand = GL_SRC_ALPHA; \
} \
else if ((envCombiner->vertex.alpha == COMBINED) || (envCombiner->vertex.alpha == i)) \
{ \
envCombiner->vertex.alpha = i; \
envCombiner->alpha[n].a.source = GL_PRIMARY_COLOR_ARB; \
envCombiner->alpha[n].a.operand = GL_SRC_ALPHA; \
} \
} \
else \
{ \
envCombiner->alpha[n].a.source = TexEnvArgs[i].source; \
envCombiner->alpha[n].a.operand = GL_SRC_ALPHA; \
}
#define SetAlphaCombinerValues( n, a, s, o ) \
envCombiner->alpha[n].a.source = s; \
envCombiner->alpha[n].a.operand = o
void Init_texture_env_combine()
{
DWORD tex[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
for (int i = 0; i < OGL.maxTextureUnits; i++)
{
TextureCache_ActivateDummy(i);
//glActiveTextureARB( GL_TEXTURE0_ARB + i );
//glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB );
//glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA8, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, tex );
//glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
//glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
}
if ((OGL.ARB_texture_env_crossbar) || (OGL.NV_texture_env_combine4) || (OGL.ATIX_texture_env_route))
{
TexEnvArgs[TEXEL0].source = GL_TEXTURE0_ARB;
TexEnvArgs[TEXEL0_ALPHA].source = GL_TEXTURE0_ARB;
TexEnvArgs[TEXEL1].source = GL_TEXTURE1_ARB;
TexEnvArgs[TEXEL1_ALPHA].source = GL_TEXTURE1_ARB;
}
if (OGL.ATI_texture_env_combine3)
{
TexEnvArgs[ONE].source = GL_ONE;
TexEnvArgs[ZERO].source = GL_ZERO;
}
}
void Uninit_texture_env_combine()
{
for (int i = 0; i < OGL.maxTextureUnits; i++)
{
glActiveTextureARB(GL_TEXTURE0_ARB + i);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
}
void Update_texture_env_combine_Colors(TexEnvCombiner* envCombiner)
{
GLcolor color;
for (int i = 0; i < OGL.maxTextureUnits; i++)
{
SetConstant(color, envCombiner->color[i].constant, envCombiner->alpha[i].constant);
glActiveTextureARB(GL_TEXTURE0_ARB + i);
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, &color.r);
}
}
TexEnvCombiner* Compile_texture_env_combine(Combiner* color, Combiner* alpha)
{
auto envCombiner = (TexEnvCombiner*)malloc(sizeof(TexEnvCombiner));
int curUnit, combinedUnit;
for (int i = 0; i < OGL.maxTextureUnits; i++)
{
envCombiner->color[i].combine = GL_REPLACE;
envCombiner->alpha[i].combine = GL_REPLACE;
SetColorCombinerValues(i, arg0, GL_PREVIOUS_ARB, GL_SRC_COLOR);
SetColorCombinerValues(i, arg1, GL_PREVIOUS_ARB, GL_SRC_COLOR);
SetColorCombinerValues(i, arg2, GL_PREVIOUS_ARB, GL_SRC_COLOR);
envCombiner->color[i].constant = COMBINED;
envCombiner->color[i].outputTexture = GL_TEXTURE0_ARB + i;
SetAlphaCombinerValues(i, arg0, GL_PREVIOUS_ARB, GL_SRC_ALPHA);
SetAlphaCombinerValues(i, arg1, GL_PREVIOUS_ARB, GL_SRC_ALPHA);
SetAlphaCombinerValues(i, arg2, GL_PREVIOUS_ARB, GL_SRC_ALPHA);
envCombiner->alpha[i].constant = COMBINED;
envCombiner->alpha[i].outputTexture = GL_TEXTURE0_ARB + i;
}
envCombiner->usesT0 = FALSE;
envCombiner->usesT1 = FALSE;
envCombiner->vertex.color = COMBINED;
envCombiner->vertex.secondaryColor = COMBINED;
envCombiner->vertex.alpha = COMBINED;
curUnit = 0;
for (int i = 0; i < alpha->numStages; i++)
{
for (int j = 0; j < alpha->stage[i].numOps; j++)
{
float sb = 0.0f;
if (alpha->stage[i].op[j].param1 == PRIMITIVE_ALPHA)
sb = gDP.primColor.a;
else if (alpha->stage[i].op[j].param1 == ENV_ALPHA)
sb = gDP.envColor.a;
else if (alpha->stage[i].op[j].param1 == ONE)
sb = 1.0f;
if (((alpha->stage[i].numOps - j) >= 3) &&
(alpha->stage[i].op[j].op == SUB) &&
(alpha->stage[i].op[j + 1].op == MUL) &&
(alpha->stage[i].op[j + 2].op == ADD) &&
(sb > 0.5f) &&
(OGL.ARB_texture_env_combine))
{
envCombiner->usesT0 |= alpha->stage[i].op[j].param1 == TEXEL0_ALPHA;
envCombiner->usesT1 |= alpha->stage[i].op[j].param1 == TEXEL1_ALPHA;
if (alpha->stage[i].op[j].param1 == ONE)
{
SetAlphaCombinerValues(curUnit, arg0, envCombiner->alpha[curUnit].arg0.source, GL_ONE_MINUS_SRC_ALPHA);
}
else
{
envCombiner->alpha[curUnit].combine = GL_SUBTRACT_ARB;
SetAlphaCombinerValues(curUnit, arg1, envCombiner->alpha[curUnit].arg0.source, GL_SRC_ALPHA);
SetAlphaCombinerArg(curUnit, arg0, alpha->stage[i].op[j].param1);
curUnit++;
}
j++;
envCombiner->usesT0 |= alpha->stage[i].op[j].param1 == TEXEL0_ALPHA;
envCombiner->usesT1 |= alpha->stage[i].op[j].param1 == TEXEL1_ALPHA;
envCombiner->alpha[curUnit].combine = GL_MODULATE;
SetAlphaCombinerArg(curUnit, arg1, alpha->stage[i].op[j].param1);
curUnit++;
j++;
envCombiner->usesT0 |= alpha->stage[i].op[j].param1 == TEXEL0_ALPHA;
envCombiner->usesT1 |= alpha->stage[i].op[j].param1 == TEXEL1_ALPHA;
envCombiner->alpha[curUnit].combine = GL_SUBTRACT_ARB;
SetAlphaCombinerArg(curUnit, arg0, alpha->stage[i].op[j].param1);
curUnit++;
}
else
{
envCombiner->usesT0 |= alpha->stage[i].op[j].param1 == TEXEL0_ALPHA;
envCombiner->usesT1 |= alpha->stage[i].op[j].param1 == TEXEL1_ALPHA;
switch (alpha->stage[i].op[j].op)
{
case LOAD:
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
(alpha->stage[i].op[j].param1 == TEXEL1_ALPHA) && (curUnit == 0))
curUnit++;
envCombiner->alpha[curUnit].combine = GL_REPLACE;
SetAlphaCombinerArg(curUnit, arg0, alpha->stage[i].op[j].param1);
break;
case SUB:
if (!OGL.ARB_texture_env_combine)
break;
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
(alpha->stage[i].op[j].param1 == TEXEL1_ALPHA) && (curUnit == 0))
curUnit++;
if ((j > 0) && (alpha->stage[i].op[j - 1].op == LOAD) && (alpha->stage[i].op[j - 1].param1 == ONE))
{
SetAlphaCombinerArg(curUnit, arg0, alpha->stage[i].op[j].param1);
envCombiner->alpha[curUnit].arg0.operand = GL_ONE_MINUS_SRC_ALPHA;
}
else if ((OGL.ATI_texture_env_combine3) && (curUnit > 0) && (envCombiner->alpha[curUnit - 1].combine == GL_MODULATE))
{
curUnit--;
SetAlphaCombinerValues(curUnit, arg2, envCombiner->alpha[curUnit].arg1.source, envCombiner->alpha[curUnit].arg1.operand);
envCombiner->alpha[curUnit].combine = GL_MODULATE_SUBTRACT_ATI;
SetAlphaCombinerArg(curUnit, arg1, alpha->stage[i].op[j].param1);
curUnit++;
}
else
{
envCombiner->alpha[curUnit].combine = GL_SUBTRACT_ARB;
SetAlphaCombinerArg(curUnit, arg1, alpha->stage[i].op[j].param1);
curUnit++;
}
break;
case MUL:
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
(alpha->stage[i].op[j].param1 == TEXEL1_ALPHA) && (curUnit == 0))
curUnit++;
envCombiner->alpha[curUnit].combine = GL_MODULATE;
SetAlphaCombinerArg(curUnit, arg1, alpha->stage[i].op[j].param1);
curUnit++;
break;
case ADD:
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
(alpha->stage[i].op[j].param1 == TEXEL1_ALPHA) && (curUnit == 0))
curUnit++;
if ((OGL.ATI_texture_env_combine3) && (curUnit > 0) && (envCombiner->alpha[curUnit - 1].combine == GL_MODULATE))
{
curUnit--;
SetAlphaCombinerValues(curUnit, arg2, envCombiner->alpha[curUnit].arg1.source, envCombiner->alpha[curUnit].arg1.operand);
envCombiner->alpha[curUnit].combine = GL_MODULATE_ADD_ATI;
SetAlphaCombinerArg(curUnit, arg1, alpha->stage[i].op[j].param1);
}
else
{
envCombiner->alpha[curUnit].combine = GL_ADD;
SetAlphaCombinerArg(curUnit, arg1, alpha->stage[i].op[j].param1);
}
curUnit++;
break;
case INTER:
envCombiner->usesT0 |= (alpha->stage[i].op[j].param2 == TEXEL0_ALPHA) || (alpha->stage[i].op[j].param3 == TEXEL0_ALPHA);
envCombiner->usesT1 |= (alpha->stage[i].op[j].param2 == TEXEL1_ALPHA) || (alpha->stage[i].op[j].param3 == TEXEL1_ALPHA);
envCombiner->alpha[curUnit].combine = GL_INTERPOLATE_ARB;
SetAlphaCombinerArg(curUnit, arg0, alpha->stage[i].op[j].param1);
SetAlphaCombinerArg(curUnit, arg1, alpha->stage[i].op[j].param2);
SetAlphaCombinerArg(curUnit, arg2, alpha->stage[i].op[j].param3);
curUnit++;
break;
}
}
}
combinedUnit = max(curUnit - 1, 0);
}
envCombiner->usedUnits = max(curUnit, 1);
curUnit = 0;
for (int i = 0; i < color->numStages; i++)
{
for (int j = 0; j < color->stage[i].numOps; j++)
{
float sb = 0.0f;
if (color->stage[i].op[j].param1 == PRIMITIVE)
sb = (gDP.primColor.r + gDP.primColor.b + gDP.primColor.g) / 3.0f;
else if (color->stage[i].op[j].param1 == ENVIRONMENT)
sb = (gDP.envColor.r + gDP.envColor.b + gDP.envColor.g) / 3.0f;
// This helps with problems caused by not using signed values between texture units
if (((color->stage[i].numOps - j) >= 3) &&
(color->stage[i].op[j].op == SUB) &&
(color->stage[i].op[j + 1].op == MUL) &&
(color->stage[i].op[j + 2].op == ADD) &&
(sb > 0.5f) &&
(OGL.ARB_texture_env_combine))
{
envCombiner->usesT0 |= ((color->stage[i].op[j].param1 == TEXEL0) || (color->stage[i].op[j].param1 == TEXEL0_ALPHA));
envCombiner->usesT1 |= ((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param1 == TEXEL1_ALPHA));
envCombiner->color[curUnit].combine = GL_SUBTRACT_ARB;
SetColorCombinerValues(curUnit, arg1, envCombiner->color[curUnit].arg0.source, envCombiner->color[curUnit].arg0.operand);
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param1);
curUnit++;
j++;
envCombiner->usesT0 |= ((color->stage[i].op[j].param1 == TEXEL0) || (color->stage[i].op[j].param1 == TEXEL0_ALPHA));
envCombiner->usesT1 |= ((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param1 == TEXEL1_ALPHA));
envCombiner->color[curUnit].combine = GL_MODULATE;
SetColorCombinerArg(curUnit, arg1, color->stage[i].op[j].param1);
curUnit++;
j++;
envCombiner->usesT0 |= ((color->stage[i].op[j].param1 == TEXEL0) || (color->stage[i].op[j].param1 == TEXEL0_ALPHA));
envCombiner->usesT1 |= ((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param1 == TEXEL1_ALPHA));
envCombiner->color[curUnit].combine = GL_SUBTRACT_ARB;
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param1);
curUnit++;
}
else
{
envCombiner->usesT0 |= ((color->stage[i].op[j].param1 == TEXEL0) || (color->stage[i].op[j].param1 == TEXEL0_ALPHA));
envCombiner->usesT1 |= ((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param1 == TEXEL1_ALPHA));
switch (color->stage[i].op[j].op)
{
case LOAD:
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param1 == TEXEL1_ALPHA)) && (curUnit == 0))
curUnit++;
envCombiner->color[curUnit].combine = GL_REPLACE;
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param1);
break;
case SUB:
if (!OGL.ARB_texture_env_combine)
break;
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param1 == TEXEL1_ALPHA)) && (curUnit == 0))
curUnit++;
if ((j > 0) && (color->stage[i].op[j - 1].op == LOAD) && (color->stage[i].op[j - 1].param1 == ONE))
{
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param1);
envCombiner->color[curUnit].arg0.operand = GL_ONE_MINUS_SRC_COLOR;
}
else if ((OGL.ATI_texture_env_combine3) && (curUnit > 0) && (envCombiner->color[curUnit - 1].combine == GL_MODULATE))
{
curUnit--;
SetColorCombinerValues(curUnit, arg2, envCombiner->color[curUnit].arg1.source, envCombiner->color[curUnit].arg1.operand);
envCombiner->color[curUnit].combine = GL_MODULATE_SUBTRACT_ATI;
SetColorCombinerArg(curUnit, arg1, color->stage[i].op[j].param1);
curUnit++;
}
else
{
envCombiner->color[curUnit].combine = GL_SUBTRACT_ARB;
SetColorCombinerArg(curUnit, arg1, color->stage[i].op[j].param1);
curUnit++;
}
break;
case MUL:
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param1 == TEXEL1_ALPHA)) && (curUnit == 0))
curUnit++;
envCombiner->color[curUnit].combine = GL_MODULATE;
SetColorCombinerArg(curUnit, arg1, color->stage[i].op[j].param1);
curUnit++;
break;
case ADD:
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param1 == TEXEL1_ALPHA)) && (curUnit == 0))
curUnit++;
// ATI_texture_env_combine3 adds GL_MODULATE_ADD_ATI; saves texture units
if ((OGL.ATI_texture_env_combine3) && (curUnit > 0) && (envCombiner->color[curUnit - 1].combine == GL_MODULATE))
{
curUnit--;
SetColorCombinerValues(curUnit, arg2, envCombiner->color[curUnit].arg1.source, envCombiner->color[curUnit].arg1.operand);
envCombiner->color[curUnit].combine = GL_MODULATE_ADD_ATI;
SetColorCombinerArg(curUnit, arg1, color->stage[i].op[j].param1);
}
else
{
envCombiner->color[curUnit].combine = GL_ADD;
SetColorCombinerArg(curUnit, arg1, color->stage[i].op[j].param1);
}
curUnit++;
break;
case INTER:
envCombiner->usesT0 |= (color->stage[i].op[j].param2 == TEXEL0) || (color->stage[i].op[j].param3 == TEXEL0) || (color->stage[i].op[j].param3 == TEXEL0_ALPHA);
envCombiner->usesT1 |= (color->stage[i].op[j].param2 == TEXEL1) || (color->stage[i].op[j].param3 == TEXEL1) || (color->stage[i].op[j].param3 == TEXEL1_ALPHA);
if (!(OGL.ARB_texture_env_crossbar || OGL.NV_texture_env_combine4) &&
((color->stage[i].op[j].param1 == TEXEL1) || (color->stage[i].op[j].param2 == TEXEL1) || (color->stage[i].op[j].param3 == TEXEL1) || (color->stage[i].op[j].param3 == TEXEL1_ALPHA)) && (curUnit == 0))
{
if (color->stage[i].op[j].param1 == TEXEL0)
{
envCombiner->color[curUnit].combine = GL_REPLACE;
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param1);
color->stage[i].op[j].param1 = COMBINED;
}
if (color->stage[i].op[j].param2 == TEXEL0)
{
envCombiner->color[curUnit].combine = GL_REPLACE;
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param2)
color->stage[i].op[j].param2 = COMBINED;
}
if (color->stage[i].op[j].param3 == TEXEL0)
{
envCombiner->color[curUnit].combine = GL_REPLACE;
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param3);
color->stage[i].op[j].param3 = COMBINED;
}
if (color->stage[i].op[j].param3 == TEXEL0_ALPHA)
{
envCombiner->color[curUnit].combine = GL_REPLACE;
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param3);
color->stage[i].op[j].param3 = COMBINED_ALPHA;
}
curUnit++;
}
envCombiner->color[curUnit].combine = GL_INTERPOLATE_ARB;
SetColorCombinerArg(curUnit, arg0, color->stage[i].op[j].param1);
SetColorCombinerArg(curUnit, arg1, color->stage[i].op[j].param2);
SetColorCombinerArg(curUnit, arg2, color->stage[i].op[j].param3);
curUnit++;
break;
}
}
}
combinedUnit = max(curUnit - 1, 0);
}
envCombiner->usedUnits = max(curUnit, envCombiner->usedUnits);
return envCombiner;
}
void BeginTextureUpdate_texture_env_combine()
{
for (int i = 0; i < OGL.maxTextureUnits; i++)
{
glActiveTextureARB(GL_TEXTURE0_ARB + i);
glDisable(GL_TEXTURE_2D);
}
}
void EndTextureUpdate_texture_env_combine()
{
for (int i = 0; i < ((TexEnvCombiner*)combiner.current->compiled)->usedUnits; i++)
{
glActiveTextureARB(GL_TEXTURE0_ARB + i);
glEnable(GL_TEXTURE_2D);
}
}
void Set_texture_env_combine(TexEnvCombiner* envCombiner)
{
combiner.usesT0 = envCombiner->usesT0;
combiner.usesT1 = envCombiner->usesT1;
combiner.usesNoise = FALSE;
combiner.vertex.color = envCombiner->vertex.color;
combiner.vertex.secondaryColor = envCombiner->vertex.secondaryColor;
combiner.vertex.alpha = envCombiner->vertex.alpha;
for (int i = 0; i < OGL.maxTextureUnits; i++)
{
glActiveTextureARB(GL_TEXTURE0_ARB + i);
if ((i < envCombiner->usedUnits) || ((i < 2) && envCombiner->usesT1))
{
glEnable(GL_TEXTURE_2D);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, envCombiner->color[i].combine);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, envCombiner->color[i].arg0.source);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, envCombiner->color[i].arg0.operand);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, envCombiner->color[i].arg1.source);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, envCombiner->color[i].arg1.operand);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, envCombiner->color[i].arg2.source);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_ARB, envCombiner->color[i].arg2.operand);
// if (OGL.ATIX_texture_env_route)
// glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_OUTPUT_RGB_ATIX, envCombiner->color[i].outputTexture );
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, envCombiner->alpha[i].combine);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, envCombiner->alpha[i].arg0.source);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, envCombiner->alpha[i].arg0.operand);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, envCombiner->alpha[i].arg1.source);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, envCombiner->alpha[i].arg1.operand);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_ARB, envCombiner->alpha[i].arg2.source);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_ARB, envCombiner->alpha[i].arg2.operand);
// if (OGL.ATIX_texture_env_route)
// glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_OUTPUT_ALPHA_ATIX, envCombiner->alpha[i].outputTexture );
}
else
{
glDisable(GL_TEXTURE_2D);
}
}
}