ARB_texture_env_combine state.
GLuint args_RGB[3];
GLuint args_A[3];
GLuint texel_op = GetTexelOp(unit);
- GLuint rgb_shift = texUnit->CombineScaleShiftRGB;
- GLuint alpha_shift = texUnit->CombineScaleShiftA;
+ GLuint rgb_shift = texUnit->Combine.ScaleShiftRGB;
+ GLuint alpha_shift = texUnit->Combine.ScaleShiftA;
int i;
if(I830_DEBUG&DEBUG_TEXTURE)
fprintf(stderr, "%s\n", __FUNCTION__);
- switch(texUnit->CombineModeRGB) {
+ switch(texUnit->Combine.ModeRGB) {
case GL_REPLACE:
blendop = TEXBLENDOP_ARG1;
break;
blendop |= (rgb_shift << TEXOP_SCALE_SHIFT);
- switch(texUnit->CombineModeA) {
+ switch(texUnit->Combine.ModeA) {
case GL_REPLACE:
ablendop = TEXBLENDOP_ARG1;
break;
return;
}
- if ( (texUnit->CombineModeRGB == GL_DOT3_RGBA_EXT)
- || (texUnit->CombineModeRGB == GL_DOT3_RGBA) ) {
+ if ( (texUnit->Combine.ModeRGB == GL_DOT3_RGBA_EXT)
+ || (texUnit->Combine.ModeRGB == GL_DOT3_RGBA) ) {
ablendop = TEXBLENDOP_DOT3;
}
/* Handle RGB args */
for(i = 0; i < 3; i++) {
- switch(texUnit->CombineSourceRGB[i]) {
+ switch(texUnit->Combine.SourceRGB[i]) {
case GL_TEXTURE:
args_RGB[i] = texel_op;
break;
}
- switch(texUnit->CombineOperandRGB[i]) {
+ switch(texUnit->Combine.OperandRGB[i]) {
case GL_SRC_COLOR:
args_RGB[i] |= 0;
break;
/* Handle A args */
for(i = 0; i < 3; i++) {
- switch(texUnit->CombineSourceA[i]) {
+ switch(texUnit->Combine.SourceA[i]) {
case GL_TEXTURE:
args_A[i] = texel_op;
break;
}
- switch(texUnit->CombineOperandA[i]) {
+ switch(texUnit->Combine.OperandA[i]) {
case GL_SRC_ALPHA:
args_A[i] |= 0;
break;
int args[3];
int i;
- switch (texUnit->CombineModeRGB) {
+ switch (texUnit->Combine.ModeRGB) {
case GL_REPLACE:
numColorArgs = 1;
break;
return GL_FALSE;
}
- switch (texUnit->CombineModeA) {
+ switch (texUnit->Combine.ModeA) {
case GL_REPLACE:
numAlphaArgs = 1;
break;
}
for (i = 0;i < numColorArgs; i++) {
- switch (texUnit->CombineSourceRGB[i]) {
+ switch (texUnit->Combine.SourceRGB[i]) {
case GL_TEXTURE:
arg1[i] |= 0;
arg2[i] |= ARG_DISABLE;
return GL_FALSE;
}
- switch (texUnit->CombineOperandRGB[i]) {
+ switch (texUnit->Combine.OperandRGB[i]) {
case GL_SRC_COLOR:
arg1[i] |= 0;
arg2[i] |= 0;
- if (texUnit->CombineSourceRGB[i] == GL_CONSTANT &&
+ if (texUnit->Combine.SourceRGB[i] == GL_CONSTANT &&
RGBA_EQUAL( mmesa->envcolor[source] )) {
alpha[i] |= 0;
} else {
case GL_ONE_MINUS_SRC_COLOR:
arg1[i] |= TD0_color_arg1_inv_enable;
arg2[i] |= TD0_color_arg2_inv_enable;
- if (texUnit->CombineSourceRGB[i] == GL_CONSTANT &&
+ if (texUnit->Combine.SourceRGB[i] == GL_CONSTANT &&
RGBA_EQUAL( mmesa->envcolor[source] )) {
alpha[i] |= (TD0_color_alpha1inv_enable |
TD0_color_alpha2inv_enable);
}
}
- switch (texUnit->CombineModeRGB) {
+ switch (texUnit->Combine.ModeRGB) {
case GL_MODULATE_ADD_ATI:
case GL_MODULATE_SIGNED_ADD_ATI:
/* Special handling for ATI_texture_env_combine3.
args[0] = MGA_ARG1; args[1] = MGA_ARG2; args[2] = MGA_ALPHA;
} else
if ((arg1[1] | arg2[0] | alpha[2]) != ARG_DISABLE &&
- texUnit->CombineModeRGB != GL_MODULATE_SUBTRACT_ATI) {
+ texUnit->Combine.ModeRGB != GL_MODULATE_SUBTRACT_ATI) {
*reg |= arg1[1] | arg2[0] | alpha[2];
args[0] = MGA_ARG2; args[1] = MGA_ARG1; args[2] = MGA_ALPHA;
} else
if ((arg1[1] | arg2[2] | alpha[0]) != ARG_DISABLE &&
- texUnit->CombineModeRGB != GL_MODULATE_SUBTRACT_ATI) {
+ texUnit->Combine.ModeRGB != GL_MODULATE_SUBTRACT_ATI) {
*reg |= arg1[1] | arg2[2] | alpha[0];
args[0] = MGA_ALPHA; args[1] = MGA_ARG1; args[2] = MGA_ARG2;
} else
}
}
- switch (texUnit->CombineModeRGB) {
+ switch (texUnit->Combine.ModeRGB) {
case GL_REPLACE:
- if (texUnit->CombineScaleShiftRGB) {
+ if (texUnit->Combine.ScaleShiftRGB) {
return GL_FALSE;
}
}
break;
case GL_MODULATE:
- if (texUnit->CombineScaleShiftRGB == 1) {
+ if (texUnit->Combine.ScaleShiftRGB == 1) {
*reg |= TD0_color_modbright_2x;
- } else if (texUnit->CombineScaleShiftRGB == 2) {
+ } else if (texUnit->Combine.ScaleShiftRGB == 2) {
*reg |= TD0_color_modbright_4x;
}
/* Can't get alpha to the adder */
return GL_FALSE;
}
- if (texUnit->CombineScaleShiftRGB == 1) {
+ if (texUnit->Combine.ScaleShiftRGB == 1) {
*reg |= TD0_color_add2x_enable;
- } else if (texUnit->CombineScaleShiftRGB == 2) {
+ } else if (texUnit->Combine.ScaleShiftRGB == 2) {
return GL_FALSE;
}
/* Only alpha can function as Arg2 */
return GL_FALSE;
}
- if (texUnit->CombineScaleShiftRGB == 1) {
+ if (texUnit->Combine.ScaleShiftRGB == 1) {
*reg |= TD0_color_add2x_enable;
- } else if (texUnit->CombineScaleShiftRGB == 2) {
+ } else if (texUnit->Combine.ScaleShiftRGB == 2) {
return GL_FALSE;
}
/* Can't get alpha to the adder */
return GL_FALSE;
}
- if (texUnit->CombineScaleShiftRGB == 1) {
+ if (texUnit->Combine.ScaleShiftRGB == 1) {
*reg |= TD0_color_add2x_enable;
- } else if (texUnit->CombineScaleShiftRGB == 2) {
+ } else if (texUnit->Combine.ScaleShiftRGB == 2) {
return GL_FALSE;
}
/* Can't get alpha to the adder */
return GL_FALSE;
}
- if (texUnit->CombineScaleShiftRGB == 1) {
+ if (texUnit->Combine.ScaleShiftRGB == 1) {
*reg |= TD0_color_add2x_enable;
- } else if (texUnit->CombineScaleShiftRGB == 2) {
+ } else if (texUnit->Combine.ScaleShiftRGB == 2) {
return GL_FALSE;
}
/* Can't swap arguments */
return GL_FALSE;
}
- if (texUnit->CombineScaleShiftRGB == 1) {
+ if (texUnit->Combine.ScaleShiftRGB == 1) {
*reg |= TD0_color_add2x_enable;
- } else if (texUnit->CombineScaleShiftRGB == 2) {
+ } else if (texUnit->Combine.ScaleShiftRGB == 2) {
return GL_FALSE;
}
}
for (i = 0; i < numAlphaArgs; i++) {
- switch (texUnit->CombineSourceA[i]) {
+ switch (texUnit->Combine.SourceA[i]) {
case GL_TEXTURE:
arg1[i] |= 0;
arg2[i] |= ARG_DISABLE;
return GL_FALSE;
}
- switch (texUnit->CombineOperandA[i]) {
+ switch (texUnit->Combine.OperandA[i]) {
case GL_SRC_ALPHA:
arg1[i] |= 0;
arg2[i] |= 0;
return GL_FALSE;
}
- switch (texUnit->CombineModeA) {
+ switch (texUnit->Combine.ModeA) {
case GL_REPLACE:
- if (texUnit->CombineScaleShiftA) {
+ if (texUnit->Combine.ScaleShiftA) {
return GL_FALSE;
}
}
break;
case GL_MODULATE:
- if (texUnit->CombineScaleShiftA == 1) {
+ if (texUnit->Combine.ScaleShiftA == 1) {
*reg |= TD0_alpha_modbright_2x;
- } else if (texUnit->CombineScaleShiftA == 2) {
+ } else if (texUnit->Combine.ScaleShiftA == 2) {
*reg |= TD0_alpha_modbright_4x;
}
*reg |= TD0_alpha_addbias_enable;
/* fallthrough */
case GL_ADD:
- if (texUnit->CombineScaleShiftA == 1) {
+ if (texUnit->Combine.ScaleShiftA == 1) {
*reg |= TD0_alpha_add2x_enable;
- } else if (texUnit->CombineScaleShiftA == 2) {
+ } else if (texUnit->Combine.ScaleShiftA == 2) {
return GL_FALSE;
}
TD0_alpha_sel_add);
break;
case GL_SUBTRACT:
- if (texUnit->CombineScaleShiftA == 1) {
+ if (texUnit->Combine.ScaleShiftA == 1) {
*reg |= TD0_alpha_add2x_enable;
- } else if (texUnit->CombineScaleShiftA == 2) {
+ } else if (texUnit->Combine.ScaleShiftA == 2) {
return GL_FALSE;
}
* Texture combine functions
*/
-#define R200_DISABLE 0
-#define R200_REPLACE 1
-#define R200_MODULATE 2
-#define R200_DECAL 3
-#define R200_BLEND 4
-#define R200_ADD 5
-#define R200_MAX_COMBFUNC 6
-
-static GLuint r200_color_combine[][R200_MAX_COMBFUNC] =
-{
- /* Unit 0:
- */
- {
- /* Disable combiner stage
- */
- (R200_TXC_ARG_A_ZERO |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_DIFFUSE_COLOR |
- R200_TXC_OP_MADD),
-
- /* GL_REPLACE = 0x00802800
- */
- (R200_TXC_ARG_A_ZERO |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_R0_COLOR |
- R200_TXC_OP_MADD),
-
- /* GL_MODULATE = 0x00800142
- */
- (R200_TXC_ARG_A_DIFFUSE_COLOR | /* current starts in DIFFUSE */
- R200_TXC_ARG_B_R0_COLOR |
- R200_TXC_ARG_C_ZERO |
- R200_TXC_OP_MADD),
-
- /* GL_DECAL = 0x008c2d42
- */
- (R200_TXC_ARG_A_DIFFUSE_COLOR |
- R200_TXC_ARG_B_R0_COLOR |
- R200_TXC_ARG_C_R0_ALPHA |
- R200_TXC_OP_LERP),
-
- /* GL_BLEND = 0x008c2902
- */
- (R200_TXC_ARG_A_DIFFUSE_COLOR |
- R200_TXC_ARG_B_TFACTOR_COLOR |
- R200_TXC_ARG_C_R0_COLOR |
- R200_TXC_OP_LERP),
-
- /* GL_ADD = 0x00812802
- */
- (R200_TXC_ARG_A_DIFFUSE_COLOR |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_R0_COLOR |
- R200_TXC_COMP_ARG_B |
- R200_TXC_OP_MADD),
- },
-
- /* Unit 1:
- */
- {
- /* Disable combiner stage
- */
- (R200_TXC_ARG_A_ZERO |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_R0_COLOR |
- R200_TXC_OP_MADD),
-
- /* GL_REPLACE = 0x00803000
- */
- (R200_TXC_ARG_A_ZERO |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_R1_COLOR |
- R200_TXC_OP_MADD),
-
- /* GL_MODULATE = 0x00800182
- */
- (R200_TXC_ARG_A_R0_COLOR | /* current in R0 thereafter */
- R200_TXC_ARG_B_R1_COLOR |
- R200_TXC_ARG_C_ZERO |
- R200_TXC_OP_MADD),
-
- /* GL_DECAL = 0x008c3582
- */
- (R200_TXC_ARG_A_R0_COLOR |
- R200_TXC_ARG_B_R1_COLOR |
- R200_TXC_ARG_C_R1_ALPHA |
- R200_TXC_OP_LERP),
-
- /* GL_BLEND = 0x008c3102
- */
- (R200_TXC_ARG_A_R0_COLOR |
- R200_TXC_ARG_B_TFACTOR_COLOR |
- R200_TXC_ARG_C_R1_COLOR |
- R200_TXC_OP_LERP),
-
- /* GL_ADD = 0x00813002
- */
- (R200_TXC_ARG_A_R0_COLOR |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_R1_COLOR |
- R200_TXC_COMP_ARG_B |
- R200_TXC_OP_MADD),
- },
-
- /* Unit 2:
- */
- {
- /* Disable combiner stage
- */
- (R200_TXC_ARG_A_ZERO |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_R0_COLOR |
- R200_TXC_OP_MADD),
-
- /* GL_REPLACE = 0x00803800
- */
- (R200_TXC_ARG_A_ZERO |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_R2_COLOR |
- R200_TXC_OP_MADD),
-
- /* GL_MODULATE = 0x008001c2
- */
- (R200_TXC_ARG_A_R0_COLOR |
- R200_TXC_ARG_B_R2_COLOR |
- R200_TXC_ARG_C_ZERO |
- R200_TXC_OP_MADD),
-
- /* GL_DECAL = 0x008c3dc2
- */
- (R200_TXC_ARG_A_R0_COLOR |
- R200_TXC_ARG_B_R2_COLOR |
- R200_TXC_ARG_C_R2_ALPHA |
- R200_TXC_OP_LERP),
-
- /* GL_BLEND = 0x008c3902
- */
- (R200_TXC_ARG_A_R0_COLOR |
- R200_TXC_ARG_B_TFACTOR_COLOR |
- R200_TXC_ARG_C_R2_COLOR |
- R200_TXC_OP_LERP),
-
- /* GL_ADD = 0x00813802
- */
- (R200_TXC_ARG_A_R0_COLOR |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_ARG_C_R2_COLOR |
- R200_TXC_COMP_ARG_B |
- R200_TXC_OP_MADD),
- }
-};
-
-static GLuint r200_alpha_combine[][R200_MAX_COMBFUNC] =
-{
- /* Unit 0:
- */
- {
- /* Disable combiner stage
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_DIFFUSE_ALPHA |
- R200_TXA_OP_MADD),
-
-
- /* GL_REPLACE = 0x00800500
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R0_ALPHA |
- R200_TXA_OP_MADD),
-
- /* GL_MODULATE = 0x00800051
- */
- (R200_TXA_ARG_A_DIFFUSE_ALPHA |
- R200_TXA_ARG_B_R0_ALPHA |
- R200_TXA_ARG_C_ZERO |
- R200_TXA_OP_MADD),
-
- /* GL_DECAL = 0x00800100
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_DIFFUSE_ALPHA |
- R200_TXA_OP_MADD),
-
- /* GL_BLEND = 0x00800051
- */
- (R200_TXA_ARG_A_DIFFUSE_ALPHA |
- R200_TXA_ARG_B_TFACTOR_ALPHA |
- R200_TXA_ARG_C_R0_ALPHA |
- R200_TXA_OP_LERP),
-
- /* GL_ADD = 0x00800051
- */
- (R200_TXA_ARG_A_DIFFUSE_ALPHA |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R0_ALPHA |
- R200_TXA_COMP_ARG_B |
- R200_TXA_OP_MADD),
- },
-
- /* Unit 1:
- */
- {
- /* Disable combiner stage
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R0_ALPHA |
- R200_TXA_OP_MADD),
-
- /* GL_REPLACE = 0x00800600
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R1_ALPHA |
- R200_TXA_OP_MADD),
-
- /* GL_MODULATE = 0x00800061
- */
- (R200_TXA_ARG_A_R0_ALPHA |
- R200_TXA_ARG_B_R1_ALPHA |
- R200_TXA_ARG_C_ZERO |
- R200_TXA_OP_MADD),
-
- /* GL_DECAL = 0x00800100
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R0_ALPHA |
- R200_TXA_OP_MADD),
-
- /* GL_BLEND = 0x00800061
- */
- (R200_TXA_ARG_A_R0_ALPHA |
- R200_TXA_ARG_B_TFACTOR_ALPHA |
- R200_TXA_ARG_C_R1_ALPHA |
- R200_TXA_OP_LERP),
-
- /* GL_ADD = 0x00800061
- */
- (R200_TXA_ARG_A_R0_ALPHA |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R1_ALPHA |
- R200_TXA_COMP_ARG_B |
- R200_TXA_OP_MADD),
- },
-
- /* Unit 2:
- */
- {
- /* Disable combiner stage
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R0_ALPHA |
- R200_TXA_OP_MADD),
-
- /* GL_REPLACE = 0x00800700
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R2_ALPHA |
- R200_TXA_OP_MADD),
-
- /* GL_MODULATE = 0x00800071
- */
- (R200_TXA_ARG_A_R0_ALPHA |
- R200_TXA_ARG_B_R2_ALPHA |
- R200_TXA_ARG_C_ZERO |
- R200_TXA_OP_MADD),
-
- /* GL_DECAL = 0x00800100
- */
- (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R0_ALPHA |
- R200_TXA_OP_MADD),
-
- /* GL_BLEND = 0x00800071
- */
- (R200_TXA_ARG_A_R0_ALPHA |
- R200_TXA_ARG_B_TFACTOR_ALPHA |
- R200_TXA_ARG_C_R2_ALPHA |
- R200_TXA_OP_LERP),
-
- /* GL_ADD = 0x00800021
- */
- (R200_TXA_ARG_A_R0_ALPHA |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_ARG_C_R2_ALPHA |
- R200_TXA_COMP_ARG_B |
- R200_TXA_OP_MADD),
- }
-};
-
-
/* GL_ARB_texture_env_combine support
*/
*/
rmesa->state.texture.unit[unit].format = 0;
rmesa->state.texture.unit[unit].envMode = 0;
- color_combine = r200_color_combine[unit][R200_DISABLE];
- alpha_combine = r200_alpha_combine[unit][R200_DISABLE];
+ if ( unit == 0 ) {
+ color_combine = R200_TXC_ARG_A_ZERO | R200_TXC_ARG_B_ZERO
+ | R200_TXC_ARG_C_DIFFUSE_COLOR | R200_TXC_OP_MADD;
+ alpha_combine = R200_TXA_ARG_A_ZERO | R200_TXA_ARG_B_ZERO
+ | R200_TXA_ARG_C_DIFFUSE_ALPHA | R200_TXA_OP_MADD;
+ }
+ else {
+ color_combine = R200_TXC_ARG_A_ZERO | R200_TXC_ARG_B_ZERO
+ | R200_TXC_ARG_C_R0_COLOR | R200_TXC_OP_MADD;
+ alpha_combine = R200_TXA_ARG_A_ZERO | R200_TXA_ARG_B_ZERO
+ | R200_TXA_ARG_C_R0_ALPHA | R200_TXA_OP_MADD;
+ }
}
else {
- const struct gl_texture_object *tObj = texUnit->_Current;
- const GLenum format = tObj->Image[0][tObj->BaseLevel]->Format;
GLuint color_arg[3], alpha_arg[3];
- GLuint i, numColorArgs = 0, numAlphaArgs = 0;
- GLuint RGBshift = texUnit->CombineScaleShiftRGB;
- GLuint Ashift = texUnit->CombineScaleShiftA;
-
- switch ( texUnit->EnvMode ) {
- case GL_REPLACE:
- switch ( format ) {
- case GL_RGBA:
- case GL_LUMINANCE_ALPHA:
- case GL_INTENSITY:
- color_combine = r200_color_combine[unit][R200_REPLACE];
- alpha_combine = r200_alpha_combine[unit][R200_REPLACE];
- break;
- case GL_ALPHA:
- color_combine = r200_color_combine[unit][R200_DISABLE];
- alpha_combine = r200_alpha_combine[unit][R200_REPLACE];
- break;
- case GL_LUMINANCE:
- case GL_RGB:
- case GL_YCBCR_MESA:
- color_combine = r200_color_combine[unit][R200_REPLACE];
- alpha_combine = r200_alpha_combine[unit][R200_DISABLE];
- break;
- case GL_COLOR_INDEX:
- default:
- return GL_FALSE;
- }
- break;
+ GLuint i;
+ const GLuint numColorArgs = texUnit->_CurrentCombine->_NumArgsRGB;
+ const GLuint numAlphaArgs = texUnit->_CurrentCombine->_NumArgsA;
+ GLuint RGBshift = texUnit->_CurrentCombine->ScaleShiftRGB;
+ GLuint Ashift = texUnit->_CurrentCombine->ScaleShiftA;
- case GL_MODULATE:
- switch ( format ) {
- case GL_RGBA:
- case GL_LUMINANCE_ALPHA:
- case GL_INTENSITY:
- color_combine = r200_color_combine[unit][R200_MODULATE];
- alpha_combine = r200_alpha_combine[unit][R200_MODULATE];
- break;
- case GL_ALPHA:
- color_combine = r200_color_combine[unit][R200_DISABLE];
- alpha_combine = r200_alpha_combine[unit][R200_MODULATE];
- break;
- case GL_RGB:
- case GL_LUMINANCE:
- case GL_YCBCR_MESA:
- color_combine = r200_color_combine[unit][R200_MODULATE];
- alpha_combine = r200_alpha_combine[unit][R200_DISABLE];
- break;
- case GL_COLOR_INDEX:
- default:
- return GL_FALSE;
- }
- break;
+ /* Don't cache these results.
+ */
+ rmesa->state.texture.unit[unit].format = 0;
+ rmesa->state.texture.unit[unit].envMode = 0;
- case GL_DECAL:
- switch ( format ) {
- case GL_RGBA:
- case GL_RGB:
- case GL_YCBCR_MESA:
- color_combine = r200_color_combine[unit][R200_DECAL];
- alpha_combine = r200_alpha_combine[unit][R200_DISABLE];
- break;
- case GL_ALPHA:
- case GL_LUMINANCE:
- case GL_LUMINANCE_ALPHA:
- case GL_INTENSITY:
- color_combine = r200_color_combine[unit][R200_DISABLE];
- alpha_combine = r200_alpha_combine[unit][R200_DISABLE];
- break;
- case GL_COLOR_INDEX:
- default:
- return GL_FALSE;
- }
- break;
- case GL_BLEND:
- switch ( format ) {
- case GL_RGBA:
- case GL_RGB:
- case GL_LUMINANCE:
- case GL_LUMINANCE_ALPHA:
- case GL_YCBCR_MESA:
- color_combine = r200_color_combine[unit][R200_BLEND];
- alpha_combine = r200_alpha_combine[unit][R200_MODULATE];
+ /* Step 1:
+ * Extract the color and alpha combine function arguments.
+ */
+ for ( i = 0 ; i < numColorArgs ; i++ ) {
+ const GLuint op = texUnit->_CurrentCombine->OperandRGB[i] - GL_SRC_COLOR;
+ assert(op >= 0);
+ assert(op <= 3);
+ switch ( texUnit->_CurrentCombine->SourceRGB[i] ) {
+ case GL_TEXTURE:
+ color_arg[i] = r200_register_color[op][unit];
break;
- case GL_ALPHA:
- color_combine = r200_color_combine[unit][R200_DISABLE];
- alpha_combine = r200_alpha_combine[unit][R200_MODULATE];
+ case GL_CONSTANT:
+ color_arg[i] = r200_tfactor_color[op];
break;
- case GL_INTENSITY:
- color_combine = r200_color_combine[unit][R200_BLEND];
- alpha_combine = r200_alpha_combine[unit][R200_BLEND];
+ case GL_PRIMARY_COLOR:
+ color_arg[i] = r200_primary_color[op];
break;
- case GL_COLOR_INDEX:
- default:
- return GL_FALSE;
- }
- break;
-
- case GL_ADD:
- switch ( format ) {
- case GL_RGBA:
- case GL_RGB:
- case GL_LUMINANCE:
- case GL_LUMINANCE_ALPHA:
- case GL_YCBCR_MESA:
- color_combine = r200_color_combine[unit][R200_ADD];
- alpha_combine = r200_alpha_combine[unit][R200_MODULATE];
+ case GL_PREVIOUS:
+ if (unit == 0)
+ color_arg[i] = r200_primary_color[op];
+ else
+ color_arg[i] = r200_register_color[op][0];
break;
- case GL_ALPHA:
- color_combine = r200_color_combine[unit][R200_DISABLE];
- alpha_combine = r200_alpha_combine[unit][R200_MODULATE];
+ case GL_ZERO:
+ color_arg[i] = r200_zero_color[op];
break;
- case GL_INTENSITY:
- color_combine = r200_color_combine[unit][R200_ADD];
- alpha_combine = r200_alpha_combine[unit][R200_ADD];
+ case GL_ONE:
+ color_arg[i] = r200_zero_color[op+1];
break;
- case GL_COLOR_INDEX:
default:
return GL_FALSE;
}
- break;
-
- case GL_COMBINE:
- /* Don't cache these results.
- */
- rmesa->state.texture.unit[unit].format = 0;
- rmesa->state.texture.unit[unit].envMode = 0;
+ }
- /* Step 0:
- * Calculate how many arguments we need to process.
- */
- switch ( texUnit->CombineModeRGB ) {
- case GL_REPLACE:
- numColorArgs = 1;
+ for ( i = 0 ; i < numAlphaArgs ; i++ ) {
+ const GLuint op = texUnit->_CurrentCombine->OperandA[i] - GL_SRC_ALPHA;
+ assert(op >= 0);
+ assert(op <= 1);
+ switch ( texUnit->_CurrentCombine->SourceA[i] ) {
+ case GL_TEXTURE:
+ alpha_arg[i] = r200_register_alpha[op][unit];
break;
- case GL_MODULATE:
- case GL_ADD:
- case GL_ADD_SIGNED:
- case GL_SUBTRACT:
- case GL_DOT3_RGB:
- case GL_DOT3_RGBA:
- case GL_DOT3_RGB_EXT:
- case GL_DOT3_RGBA_EXT:
- numColorArgs = 2;
+ case GL_CONSTANT:
+ alpha_arg[i] = r200_tfactor_alpha[op];
break;
- case GL_INTERPOLATE:
- case GL_MODULATE_ADD_ATI:
- case GL_MODULATE_SIGNED_ADD_ATI:
- case GL_MODULATE_SUBTRACT_ATI:
- numColorArgs = 3;
+ case GL_PRIMARY_COLOR:
+ alpha_arg[i] = r200_primary_alpha[op];
break;
- default:
- return GL_FALSE;
- }
-
- switch ( texUnit->CombineModeA ) {
- case GL_REPLACE:
- numAlphaArgs = 1;
+ case GL_PREVIOUS:
+ if (unit == 0)
+ alpha_arg[i] = r200_primary_alpha[op];
+ else
+ alpha_arg[i] = r200_register_alpha[op][0];
break;
- case GL_MODULATE:
- case GL_ADD:
- case GL_ADD_SIGNED:
- case GL_SUBTRACT:
- numAlphaArgs = 2;
+ case GL_ZERO:
+ alpha_arg[i] = r200_zero_alpha[op];
break;
- case GL_INTERPOLATE:
- case GL_MODULATE_ADD_ATI:
- case GL_MODULATE_SIGNED_ADD_ATI:
- case GL_MODULATE_SUBTRACT_ATI:
- numAlphaArgs = 3;
+ case GL_ONE:
+ alpha_arg[i] = r200_zero_alpha[op+1];
break;
default:
return GL_FALSE;
}
+ }
- /* Step 1:
- * Extract the color and alpha combine function arguments.
- */
- for ( i = 0 ; i < numColorArgs ; i++ ) {
- const GLuint op = texUnit->CombineOperandRGB[i] - GL_SRC_COLOR;
- assert(op >= 0);
- assert(op <= 3);
- switch ( texUnit->CombineSourceRGB[i] ) {
- case GL_TEXTURE:
- color_arg[i] = r200_register_color[op][unit];
- break;
- case GL_CONSTANT:
- color_arg[i] = r200_tfactor_color[op];
- break;
- case GL_PRIMARY_COLOR:
- color_arg[i] = r200_primary_color[op];
- break;
- case GL_PREVIOUS:
- if (unit == 0)
- color_arg[i] = r200_primary_color[op];
- else
- color_arg[i] = r200_register_color[op][0];
- break;
- case GL_ZERO:
- color_arg[i] = r200_zero_color[op];
- break;
- case GL_ONE:
- color_arg[i] = r200_zero_color[op+1];
- break;
- default:
- return GL_FALSE;
- }
- }
-
- for ( i = 0 ; i < numAlphaArgs ; i++ ) {
- const GLuint op = texUnit->CombineOperandA[i] - GL_SRC_ALPHA;
- assert(op >= 0);
- assert(op <= 1);
- switch ( texUnit->CombineSourceA[i] ) {
- case GL_TEXTURE:
- alpha_arg[i] = r200_register_alpha[op][unit];
- break;
- case GL_CONSTANT:
- alpha_arg[i] = r200_tfactor_alpha[op];
- break;
- case GL_PRIMARY_COLOR:
- alpha_arg[i] = r200_primary_alpha[op];
- break;
- case GL_PREVIOUS:
- if (unit == 0)
- alpha_arg[i] = r200_primary_alpha[op];
- else
- alpha_arg[i] = r200_register_alpha[op][0];
- break;
- case GL_ZERO:
- alpha_arg[i] = r200_zero_alpha[op];
- break;
- case GL_ONE:
- alpha_arg[i] = r200_zero_alpha[op+1];
- break;
- default:
- return GL_FALSE;
- }
- }
+ /* Step 2:
+ * Build up the color and alpha combine functions.
+ */
+ switch ( texUnit->_CurrentCombine->ModeRGB ) {
+ case GL_REPLACE:
+ color_combine = (R200_TXC_ARG_A_ZERO |
+ R200_TXC_ARG_B_ZERO |
+ R200_TXC_OP_MADD);
+ R200_COLOR_ARG( 0, C );
+ break;
+ case GL_MODULATE:
+ color_combine = (R200_TXC_ARG_C_ZERO |
+ R200_TXC_OP_MADD);
+ R200_COLOR_ARG( 0, A );
+ R200_COLOR_ARG( 1, B );
+ break;
+ case GL_ADD:
+ color_combine = (R200_TXC_ARG_B_ZERO |
+ R200_TXC_COMP_ARG_B |
+ R200_TXC_OP_MADD);
+ R200_COLOR_ARG( 0, A );
+ R200_COLOR_ARG( 1, C );
+ break;
+ case GL_ADD_SIGNED:
+ color_combine = (R200_TXC_ARG_B_ZERO |
+ R200_TXC_COMP_ARG_B |
+ R200_TXC_BIAS_ARG_C | /* new */
+ R200_TXC_OP_MADD); /* was ADDSIGNED */
+ R200_COLOR_ARG( 0, A );
+ R200_COLOR_ARG( 1, C );
+ break;
+ case GL_SUBTRACT:
+ color_combine = (R200_TXC_ARG_B_ZERO |
+ R200_TXC_COMP_ARG_B |
+ R200_TXC_NEG_ARG_C |
+ R200_TXC_OP_MADD);
+ R200_COLOR_ARG( 0, A );
+ R200_COLOR_ARG( 1, C );
+ break;
+ case GL_INTERPOLATE:
+ color_combine = (R200_TXC_OP_LERP);
+ R200_COLOR_ARG( 0, B );
+ R200_COLOR_ARG( 1, A );
+ R200_COLOR_ARG( 2, C );
+ break;
- /* Step 2:
- * Build up the color and alpha combine functions.
+ case GL_DOT3_RGB_EXT:
+ case GL_DOT3_RGBA_EXT:
+ /* The EXT version of the DOT3 extension does not support the
+ * scale factor, but the ARB version (and the version in OpenGL
+ * 1.3) does.
+ */
+ RGBshift = 0;
+ Ashift = 0;
+ /* FALLTHROUGH */
+
+ case GL_DOT3_RGB:
+ case GL_DOT3_RGBA:
+ /* DOT3 works differently on R200 than on R100. On R100, just
+ * setting the DOT3 mode did everything for you. On R200, the
+ * driver has to enable the biasing and scale in the inputs to
+ * put them in the proper [-1,1] range. This is what the 4x and
+ * the -0.5 in the DOT3 spec do. The post-scale is then set
+ * normally.
*/
- switch ( texUnit->CombineModeRGB ) {
- case GL_REPLACE:
- color_combine = (R200_TXC_ARG_A_ZERO |
- R200_TXC_ARG_B_ZERO |
- R200_TXC_OP_MADD);
- R200_COLOR_ARG( 0, C );
- break;
- case GL_MODULATE:
- color_combine = (R200_TXC_ARG_C_ZERO |
- R200_TXC_OP_MADD);
- R200_COLOR_ARG( 0, A );
- R200_COLOR_ARG( 1, B );
- break;
- case GL_ADD:
- color_combine = (R200_TXC_ARG_B_ZERO |
- R200_TXC_COMP_ARG_B |
- R200_TXC_OP_MADD);
- R200_COLOR_ARG( 0, A );
- R200_COLOR_ARG( 1, C );
- break;
- case GL_ADD_SIGNED:
- color_combine = (R200_TXC_ARG_B_ZERO |
- R200_TXC_COMP_ARG_B |
- R200_TXC_BIAS_ARG_C | /* new */
- R200_TXC_OP_MADD); /* was ADDSIGNED */
- R200_COLOR_ARG( 0, A );
- R200_COLOR_ARG( 1, C );
- break;
- case GL_SUBTRACT:
- color_combine = (R200_TXC_ARG_B_ZERO |
- R200_TXC_COMP_ARG_B |
- R200_TXC_NEG_ARG_C |
- R200_TXC_OP_MADD);
- R200_COLOR_ARG( 0, A );
- R200_COLOR_ARG( 1, C );
- break;
- case GL_INTERPOLATE:
- color_combine = (R200_TXC_OP_LERP);
- R200_COLOR_ARG( 0, B );
- R200_COLOR_ARG( 1, A );
- R200_COLOR_ARG( 2, C );
- break;
-
- case GL_DOT3_RGB_EXT:
- case GL_DOT3_RGBA_EXT:
- /* The EXT version of the DOT3 extension does not support the
- * scale factor, but the ARB version (and the version in OpenGL
- * 1.3) does.
- */
- RGBshift = 0;
- Ashift = 0;
- /* FALLTHROUGH */
-
- case GL_DOT3_RGB:
- case GL_DOT3_RGBA:
- /* DOT3 works differently on R200 than on R100. On R100, just
- * setting the DOT3 mode did everything for you. On R200, the
- * driver has to enable the biasing and scale in the inputs to
- * put them in the proper [-1,1] range. This is what the 4x and
- * the -0.5 in the DOT3 spec do. The post-scale is then set
- * normally.
- */
-
- RGBshift++;
- Ashift = RGBshift;
-
- color_combine = (R200_TXC_ARG_C_ZERO |
- R200_TXC_OP_DOT3 |
- R200_TXC_BIAS_ARG_A |
- R200_TXC_BIAS_ARG_B |
- R200_TXC_SCALE_ARG_A |
- R200_TXC_SCALE_ARG_B);
- R200_COLOR_ARG( 0, A );
- R200_COLOR_ARG( 1, B );
- break;
-
- case GL_MODULATE_ADD_ATI:
- color_combine = (R200_TXC_OP_MADD);
- R200_COLOR_ARG( 0, A );
- R200_COLOR_ARG( 1, C );
- R200_COLOR_ARG( 2, B );
- break;
- case GL_MODULATE_SIGNED_ADD_ATI:
- color_combine = (R200_TXC_BIAS_ARG_C | /* new */
- R200_TXC_OP_MADD); /* was ADDSIGNED */
- R200_COLOR_ARG( 0, A );
- R200_COLOR_ARG( 1, C );
- R200_COLOR_ARG( 2, B );
- break;
- case GL_MODULATE_SUBTRACT_ATI:
- color_combine = (R200_TXC_NEG_ARG_C |
- R200_TXC_OP_MADD);
- R200_COLOR_ARG( 0, A );
- R200_COLOR_ARG( 1, C );
- R200_COLOR_ARG( 2, B );
- break;
- default:
- return GL_FALSE;
- }
-
- switch ( texUnit->CombineModeA ) {
- case GL_REPLACE:
- alpha_combine = (R200_TXA_ARG_A_ZERO |
- R200_TXA_ARG_B_ZERO |
- R200_TXA_OP_MADD);
- R200_ALPHA_ARG( 0, C );
- break;
- case GL_MODULATE:
- alpha_combine = (R200_TXA_ARG_C_ZERO |
- R200_TXA_OP_MADD);
- R200_ALPHA_ARG( 0, A );
- R200_ALPHA_ARG( 1, B );
- break;
- case GL_ADD:
- alpha_combine = (R200_TXA_ARG_B_ZERO |
- R200_TXA_COMP_ARG_B |
- R200_TXA_OP_MADD);
- R200_ALPHA_ARG( 0, A );
- R200_ALPHA_ARG( 1, C );
- break;
- case GL_ADD_SIGNED:
- alpha_combine = (R200_TXA_ARG_B_ZERO |
- R200_TXA_COMP_ARG_B |
- R200_TXA_BIAS_ARG_C | /* new */
- R200_TXA_OP_MADD); /* was ADDSIGNED */
- R200_ALPHA_ARG( 0, A );
- R200_ALPHA_ARG( 1, C );
- break;
- case GL_SUBTRACT:
- alpha_combine = (R200_TXA_ARG_B_ZERO |
- R200_TXA_COMP_ARG_B |
- R200_TXA_NEG_ARG_C |
- R200_TXA_OP_MADD);
- R200_ALPHA_ARG( 0, A );
- R200_ALPHA_ARG( 1, C );
- break;
- case GL_INTERPOLATE:
- alpha_combine = (R200_TXA_OP_LERP);
- R200_ALPHA_ARG( 0, B );
- R200_ALPHA_ARG( 1, A );
- R200_ALPHA_ARG( 2, C );
- break;
-
- case GL_MODULATE_ADD_ATI:
- alpha_combine = (R200_TXA_OP_MADD);
- R200_ALPHA_ARG( 0, A );
- R200_ALPHA_ARG( 1, C );
- R200_ALPHA_ARG( 2, B );
- break;
- case GL_MODULATE_SIGNED_ADD_ATI:
- alpha_combine = (R200_TXA_BIAS_ARG_C | /* new */
- R200_TXA_OP_MADD); /* was ADDSIGNED */
- R200_ALPHA_ARG( 0, A );
- R200_ALPHA_ARG( 1, C );
- R200_ALPHA_ARG( 2, B );
- break;
- case GL_MODULATE_SUBTRACT_ATI:
- alpha_combine = (R200_TXA_NEG_ARG_C |
- R200_TXA_OP_MADD);
- R200_ALPHA_ARG( 0, A );
- R200_ALPHA_ARG( 1, C );
- R200_ALPHA_ARG( 2, B );
- break;
- default:
- return GL_FALSE;
- }
- if ( (texUnit->CombineModeRGB == GL_DOT3_RGB_EXT)
- || (texUnit->CombineModeRGB == GL_DOT3_RGB) ) {
- alpha_scale |= R200_TXA_DOT_ALPHA;
- }
+ RGBshift++;
+ Ashift = RGBshift;
+
+ color_combine = (R200_TXC_ARG_C_ZERO |
+ R200_TXC_OP_DOT3 |
+ R200_TXC_BIAS_ARG_A |
+ R200_TXC_BIAS_ARG_B |
+ R200_TXC_SCALE_ARG_A |
+ R200_TXC_SCALE_ARG_B);
+ R200_COLOR_ARG( 0, A );
+ R200_COLOR_ARG( 1, B );
+ break;
- /* Step 3:
- * Apply the scale factor.
- */
- color_scale &= ~R200_TXC_SCALE_MASK;
- alpha_scale &= ~R200_TXA_SCALE_MASK;
- color_scale |= (RGBshift << R200_TXC_SCALE_SHIFT);
- alpha_scale |= (Ashift << R200_TXA_SCALE_SHIFT);
+ case GL_MODULATE_ADD_ATI:
+ color_combine = (R200_TXC_OP_MADD);
+ R200_COLOR_ARG( 0, A );
+ R200_COLOR_ARG( 1, C );
+ R200_COLOR_ARG( 2, B );
+ break;
+ case GL_MODULATE_SIGNED_ADD_ATI:
+ color_combine = (R200_TXC_BIAS_ARG_C | /* new */
+ R200_TXC_OP_MADD); /* was ADDSIGNED */
+ R200_COLOR_ARG( 0, A );
+ R200_COLOR_ARG( 1, C );
+ R200_COLOR_ARG( 2, B );
+ break;
+ case GL_MODULATE_SUBTRACT_ATI:
+ color_combine = (R200_TXC_NEG_ARG_C |
+ R200_TXC_OP_MADD);
+ R200_COLOR_ARG( 0, A );
+ R200_COLOR_ARG( 1, C );
+ R200_COLOR_ARG( 2, B );
+ break;
+ default:
+ return GL_FALSE;
+ }
- /* All done!
- */
+ switch ( texUnit->_CurrentCombine->ModeA ) {
+ case GL_REPLACE:
+ alpha_combine = (R200_TXA_ARG_A_ZERO |
+ R200_TXA_ARG_B_ZERO |
+ R200_TXA_OP_MADD);
+ R200_ALPHA_ARG( 0, C );
+ break;
+ case GL_MODULATE:
+ alpha_combine = (R200_TXA_ARG_C_ZERO |
+ R200_TXA_OP_MADD);
+ R200_ALPHA_ARG( 0, A );
+ R200_ALPHA_ARG( 1, B );
+ break;
+ case GL_ADD:
+ alpha_combine = (R200_TXA_ARG_B_ZERO |
+ R200_TXA_COMP_ARG_B |
+ R200_TXA_OP_MADD);
+ R200_ALPHA_ARG( 0, A );
+ R200_ALPHA_ARG( 1, C );
+ break;
+ case GL_ADD_SIGNED:
+ alpha_combine = (R200_TXA_ARG_B_ZERO |
+ R200_TXA_COMP_ARG_B |
+ R200_TXA_BIAS_ARG_C | /* new */
+ R200_TXA_OP_MADD); /* was ADDSIGNED */
+ R200_ALPHA_ARG( 0, A );
+ R200_ALPHA_ARG( 1, C );
+ break;
+ case GL_SUBTRACT:
+ alpha_combine = (R200_TXA_ARG_B_ZERO |
+ R200_TXA_COMP_ARG_B |
+ R200_TXA_NEG_ARG_C |
+ R200_TXA_OP_MADD);
+ R200_ALPHA_ARG( 0, A );
+ R200_ALPHA_ARG( 1, C );
+ break;
+ case GL_INTERPOLATE:
+ alpha_combine = (R200_TXA_OP_LERP);
+ R200_ALPHA_ARG( 0, B );
+ R200_ALPHA_ARG( 1, A );
+ R200_ALPHA_ARG( 2, C );
break;
+ case GL_MODULATE_ADD_ATI:
+ alpha_combine = (R200_TXA_OP_MADD);
+ R200_ALPHA_ARG( 0, A );
+ R200_ALPHA_ARG( 1, C );
+ R200_ALPHA_ARG( 2, B );
+ break;
+ case GL_MODULATE_SIGNED_ADD_ATI:
+ alpha_combine = (R200_TXA_BIAS_ARG_C | /* new */
+ R200_TXA_OP_MADD); /* was ADDSIGNED */
+ R200_ALPHA_ARG( 0, A );
+ R200_ALPHA_ARG( 1, C );
+ R200_ALPHA_ARG( 2, B );
+ break;
+ case GL_MODULATE_SUBTRACT_ATI:
+ alpha_combine = (R200_TXA_NEG_ARG_C |
+ R200_TXA_OP_MADD);
+ R200_ALPHA_ARG( 0, A );
+ R200_ALPHA_ARG( 1, C );
+ R200_ALPHA_ARG( 2, B );
+ break;
default:
return GL_FALSE;
}
+
+ if ( (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGB_EXT)
+ || (texUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGB) ) {
+ alpha_scale |= R200_TXA_DOT_ALPHA;
+ }
+
+ /* Step 3:
+ * Apply the scale factor.
+ */
+ color_scale &= ~R200_TXC_SCALE_MASK;
+ alpha_scale &= ~R200_TXA_SCALE_MASK;
+ color_scale |= (RGBshift << R200_TXC_SCALE_SHIFT);
+ alpha_scale |= (Ashift << R200_TXA_SCALE_SHIFT);
+
+ /* All done!
+ */
}
if ( rmesa->hw.pix[unit].cmd[PIX_PP_TXCBLEND] != color_combine ||
const GLenum format = tObj->Image[0][tObj->BaseLevel]->Format;
GLuint color_arg[3], alpha_arg[3];
GLuint i, numColorArgs = 0, numAlphaArgs = 0;
- GLuint RGBshift = texUnit->CombineScaleShiftRGB;
- GLuint Ashift = texUnit->CombineScaleShiftA;
+ GLuint RGBshift = texUnit->Combine.ScaleShiftRGB;
+ GLuint Ashift = texUnit->Combine.ScaleShiftA;
switch ( texUnit->EnvMode ) {
case GL_REPLACE:
/* Step 0:
* Calculate how many arguments we need to process.
*/
- switch ( texUnit->CombineModeRGB ) {
+ switch ( texUnit->Combine.ModeRGB ) {
case GL_REPLACE:
numColorArgs = 1;
break;
return GL_FALSE;
}
- switch ( texUnit->CombineModeA ) {
+ switch ( texUnit->Combine.ModeA ) {
case GL_REPLACE:
numAlphaArgs = 1;
break;
* Extract the color and alpha combine function arguments.
*/
for ( i = 0 ; i < numColorArgs ; i++ ) {
- const GLuint op = texUnit->CombineOperandRGB[i] - GL_SRC_COLOR;
+ const GLuint op = texUnit->Combine.OperandRGB[i] - GL_SRC_COLOR;
assert(op >= 0);
assert(op <= 3);
- switch ( texUnit->CombineSourceRGB[i] ) {
+ switch ( texUnit->Combine.SourceRGB[i] ) {
case GL_TEXTURE:
color_arg[i] = radeon_texture_color[op][unit];
break;
}
for ( i = 0 ; i < numAlphaArgs ; i++ ) {
- const GLuint op = texUnit->CombineOperandA[i] - GL_SRC_ALPHA;
+ const GLuint op = texUnit->Combine.OperandA[i] - GL_SRC_ALPHA;
assert(op >= 0);
assert(op <= 1);
- switch ( texUnit->CombineSourceA[i] ) {
+ switch ( texUnit->Combine.SourceA[i] ) {
case GL_TEXTURE:
alpha_arg[i] = radeon_texture_alpha[op][unit];
break;
/* Step 2:
* Build up the color and alpha combine functions.
*/
- switch ( texUnit->CombineModeRGB ) {
+ switch ( texUnit->Combine.ModeRGB ) {
case GL_REPLACE:
color_combine = (RADEON_COLOR_ARG_A_ZERO |
RADEON_COLOR_ARG_B_ZERO |
return GL_FALSE;
}
- switch ( texUnit->CombineModeA ) {
+ switch ( texUnit->Combine.ModeA ) {
case GL_REPLACE:
alpha_combine = (RADEON_ALPHA_ARG_A_ZERO |
RADEON_ALPHA_ARG_B_ZERO |
return GL_FALSE;
}
- if ( (texUnit->CombineModeRGB == GL_DOT3_RGB_EXT)
- || (texUnit->CombineModeRGB == GL_DOT3_RGB) ) {
+ if ( (texUnit->Combine.ModeRGB == GL_DOT3_RGB_EXT)
+ || (texUnit->Combine.ModeRGB == GL_DOT3_RGB) ) {
alpha_combine |= RADEON_DOT_ALPHA_DONT_REPLICATE;
}
*
* Calculate the color combination.
*/
- Shift_RGB = texUnit->CombineScaleShiftRGB;
- Shift_A = texUnit->CombineScaleShiftA;
- switch (texUnit->CombineModeRGB) {
+ Shift_RGB = texUnit->Combine.ScaleShiftRGB;
+ Shift_A = texUnit->Combine.ScaleShiftA;
+ switch (texUnit->Combine.ModeRGB) {
case GL_REPLACE:
/*
* The formula is: Arg0
* (Arg0 + 0(0))*(1-0) + 0
*/
TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
+ texUnit->Combine.SourceRGB[0],
+ texUnit->Combine.OperandRGB[0],
incomingRGB, incomingAlpha);
TEXENV_SETUP_MODE_RGB(Amode_RGB,
- texUnit->CombineOperandRGB[0]);
+ texUnit->Combine.OperandRGB[0]);
B_RGB = C_RGB = D_RGB = GR_CMBX_ZERO;
Bmode_RGB = GR_FUNC_MODE_ZERO;
Cinv_RGB = FXTRUE;
* (Arg0 + 0(0)) * Arg1 + 0(0)
*/
TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
+ texUnit->Combine.SourceRGB[0],
+ texUnit->Combine.OperandRGB[0],
incomingRGB, incomingAlpha);
TEXENV_SETUP_MODE_RGB(Amode_RGB,
- texUnit->CombineOperandRGB[0]);
+ texUnit->Combine.OperandRGB[0]);
B_RGB = GR_CMBX_ZERO;
Bmode_RGB = GR_CMBX_ZERO;
TEXENV_SETUP_ARG_RGB(C_RGB,
- texUnit->CombineSourceRGB[1],
- texUnit->CombineOperandRGB[1],
+ texUnit->Combine.SourceRGB[1],
+ texUnit->Combine.OperandRGB[1],
incomingRGB, incomingAlpha);
Cinv_RGB = TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandRGB[1]);
+ (texUnit->Combine.OperandRGB[1]);
D_RGB = GR_CMBX_ZERO;
Dinv_RGB = Ginv_RGB = FXFALSE;
break;
* The formula is Arg0 + Arg1
*/
TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
+ texUnit->Combine.SourceRGB[0],
+ texUnit->Combine.OperandRGB[0],
incomingRGB, incomingAlpha);
TEXENV_SETUP_MODE_RGB(Amode_RGB,
- texUnit->CombineOperandRGB[0]);
+ texUnit->Combine.OperandRGB[0]);
TEXENV_SETUP_ARG_RGB(B_RGB,
- texUnit->CombineSourceRGB[1],
- texUnit->CombineOperandRGB[1],
+ texUnit->Combine.SourceRGB[1],
+ texUnit->Combine.OperandRGB[1],
incomingRGB, incomingAlpha);
TEXENV_SETUP_MODE_RGB(Bmode_RGB,
- texUnit->CombineOperandRGB[1]);
+ texUnit->Combine.OperandRGB[1]);
C_RGB = D_RGB = GR_CMBX_ZERO;
Cinv_RGB = FXTRUE;
Dinv_RGB = Ginv_RGB = FXFALSE;
* we cannot implement the formula properly.
*/
TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
+ texUnit->Combine.SourceRGB[0],
+ texUnit->Combine.OperandRGB[0],
incomingRGB, incomingAlpha);
TEXENV_SETUP_ARG_RGB(B_RGB,
- texUnit->CombineSourceRGB[1],
- texUnit->CombineOperandRGB[1],
+ texUnit->Combine.SourceRGB[1],
+ texUnit->Combine.OperandRGB[1],
incomingRGB, incomingAlpha);
- if (!TEXENV_OPERAND_INVERTED(texUnit->CombineOperandRGB[0])) {
+ if (!TEXENV_OPERAND_INVERTED(texUnit->Combine.OperandRGB[0])) {
/*
* A is not inverted. So, choose it.
*/
Amode_RGB = GR_FUNC_MODE_X_MINUS_HALF;
if (!TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandRGB[1])) {
+ (texUnit->Combine.OperandRGB[1])) {
Bmode_RGB = GR_FUNC_MODE_X;
}
else {
*/
Amode_RGB = GR_FUNC_MODE_ONE_MINUS_X;
if (!TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandRGB[1])) {
+ (texUnit->Combine.OperandRGB[1])) {
Bmode_RGB = GR_FUNC_MODE_X_MINUS_HALF;
}
else {
* not support it properly.
*/
TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
+ texUnit->Combine.SourceRGB[0],
+ texUnit->Combine.OperandRGB[0],
incomingRGB, incomingAlpha);
TEXENV_SETUP_MODE_RGB(Amode_RGB,
- texUnit->CombineOperandRGB[0]);
+ texUnit->Combine.OperandRGB[0]);
TEXENV_SETUP_ARG_RGB(B_RGB,
- texUnit->CombineSourceRGB[1],
- texUnit->CombineOperandRGB[1],
+ texUnit->Combine.SourceRGB[1],
+ texUnit->Combine.OperandRGB[1],
incomingRGB, incomingAlpha);
- if (TEXENV_OPERAND_INVERTED(texUnit->CombineOperandRGB[1])) {
+ if (TEXENV_OPERAND_INVERTED(texUnit->Combine.OperandRGB[1])) {
/*
* This case is wrong.
*/
* specify some kind of alpha value.
*/
TEXENV_SETUP_ARG_A(C_RGB,
- texUnit->CombineSourceRGB[2],
- texUnit->CombineOperandRGB[2],
+ texUnit->Combine.SourceRGB[2],
+ texUnit->Combine.OperandRGB[2],
incomingAlpha);
Cinv_RGB = FXFALSE;
D_RGB = GR_CMBX_B;
/*
* Calculate the alpha combination.
*/
- switch (texUnit->CombineModeA) {
+ switch (texUnit->Combine.ModeA) {
case GL_REPLACE:
/*
* The formula is: Arg0
* (Arg0 + 0(0))*(1-0) + 0
*/
TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
+ texUnit->Combine.SourceA[0],
+ texUnit->Combine.OperandA[0],
incomingAlpha);
TEXENV_SETUP_MODE_A(Amode_A,
- texUnit->CombineOperandA[0]);
+ texUnit->Combine.OperandA[0]);
B_A = GR_CMBX_ITALPHA;
Bmode_A = GR_FUNC_MODE_ZERO;
C_A = D_A = GR_CMBX_ZERO;
* (Arg0 + 0(0)) * Arg1 + 0(0)
*/
TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
+ texUnit->Combine.SourceA[0],
+ texUnit->Combine.OperandA[0],
incomingAlpha);
TEXENV_SETUP_MODE_A(Amode_A,
- texUnit->CombineOperandA[0]);
+ texUnit->Combine.OperandA[0]);
B_A = GR_CMBX_ZERO;
Bmode_A = GR_CMBX_ZERO;
TEXENV_SETUP_ARG_A(C_A,
- texUnit->CombineSourceA[1],
- texUnit->CombineOperandA[1],
+ texUnit->Combine.SourceA[1],
+ texUnit->Combine.OperandA[1],
incomingAlpha);
Cinv_A = TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandA[1]);
+ (texUnit->Combine.OperandA[1]);
D_A = GR_CMBX_ZERO;
Dinv_A = Ginv_A = FXFALSE;
break;
* The formula is Arg0 + Arg1
*/
TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
+ texUnit->Combine.SourceA[0],
+ texUnit->Combine.OperandA[0],
incomingAlpha);
TEXENV_SETUP_MODE_A(Amode_A,
- texUnit->CombineOperandA[0]);
+ texUnit->Combine.OperandA[0]);
TEXENV_SETUP_ARG_A(B_A,
- texUnit->CombineSourceA[1],
- texUnit->CombineOperandA[1],
+ texUnit->Combine.SourceA[1],
+ texUnit->Combine.OperandA[1],
incomingAlpha);
TEXENV_SETUP_MODE_A(Bmode_A,
- texUnit->CombineOperandA[1]);
+ texUnit->Combine.OperandA[1]);
C_A = D_A = GR_CMBX_ZERO;
Cinv_A = FXTRUE;
Dinv_A = Ginv_A = FXFALSE;
* we cannot implement the formula properly.
*/
TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
+ texUnit->Combine.SourceA[0],
+ texUnit->Combine.OperandA[0],
incomingAlpha);
TEXENV_SETUP_ARG_A(B_A,
- texUnit->CombineSourceA[1],
- texUnit->CombineOperandA[1],
+ texUnit->Combine.SourceA[1],
+ texUnit->Combine.OperandA[1],
incomingAlpha);
- if (!TEXENV_OPERAND_INVERTED(texUnit->CombineOperandA[0])) {
+ if (!TEXENV_OPERAND_INVERTED(texUnit->Combine.OperandA[0])) {
/*
* A is not inverted. So, choose it.
*/
Amode_A = GR_FUNC_MODE_X_MINUS_HALF;
if (!TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandA[1])) {
+ (texUnit->Combine.OperandA[1])) {
Bmode_A = GR_FUNC_MODE_X;
} else {
Bmode_A = GR_FUNC_MODE_ONE_MINUS_X;
*/
Amode_A = GR_FUNC_MODE_ONE_MINUS_X;
if (!TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandA[1])) {
+ (texUnit->Combine.OperandA[1])) {
Bmode_A = GR_FUNC_MODE_X_MINUS_HALF;
} else {
/*
* not support it properly.
*/
TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
+ texUnit->Combine.SourceA[0],
+ texUnit->Combine.OperandA[0],
incomingAlpha);
TEXENV_SETUP_MODE_A(Amode_A,
- texUnit->CombineOperandA[0]);
+ texUnit->Combine.OperandA[0]);
TEXENV_SETUP_ARG_A(B_A,
- texUnit->CombineSourceA[1],
- texUnit->CombineOperandA[1],
+ texUnit->Combine.SourceA[1],
+ texUnit->Combine.OperandA[1],
incomingAlpha);
- if (!TEXENV_OPERAND_INVERTED(texUnit->CombineOperandA[1])) {
+ if (!TEXENV_OPERAND_INVERTED(texUnit->Combine.OperandA[1])) {
Bmode_A = GR_FUNC_MODE_NEGATIVE_X;
}
else {
* specify some kind of alpha value.
*/
TEXENV_SETUP_ARG_A(C_A,
- texUnit->CombineSourceA[2],
- texUnit->CombineOperandA[2],
+ texUnit->Combine.SourceA[2],
+ texUnit->Combine.OperandA[2],
incomingAlpha);
Cinv_A = FXFALSE;
D_A = GR_CMBX_B;
}
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT,
- unit->CombineModeRGB);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_EXT,
- unit->CombineModeA);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT,
- unit->CombineSourceRGB[0]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT,
- unit->CombineSourceRGB[1]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_EXT,
- unit->CombineSourceRGB[2]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_EXT,
- unit->CombineSourceA[0]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_EXT,
- unit->CombineSourceA[1]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_EXT,
- unit->CombineSourceA[2]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_EXT,
- unit->CombineOperandRGB[0]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_EXT,
- unit->CombineOperandRGB[1]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_EXT,
- unit->CombineOperandRGB[2]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_EXT,
- unit->CombineOperandA[0]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_EXT,
- unit->CombineOperandA[1]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_EXT,
- unit->CombineOperandA[2]);
- _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT,
- 1 << unit->CombineScaleShiftRGB);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB,
+ unit->Combine.ModeRGB);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA,
+ unit->Combine.ModeA);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB,
+ unit->Combine.SourceRGB[0]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB,
+ unit->Combine.SourceRGB[1]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB,
+ unit->Combine.SourceRGB[2]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA,
+ unit->Combine.SourceA[0]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA,
+ unit->Combine.SourceA[1]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA,
+ unit->Combine.SourceA[2]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB,
+ unit->Combine.OperandRGB[0]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB,
+ unit->Combine.OperandRGB[1]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB,
+ unit->Combine.OperandRGB[2]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA,
+ unit->Combine.OperandA[0]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA,
+ unit->Combine.OperandA[1]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA,
+ unit->Combine.OperandA[2]);
+ _mesa_TexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE,
+ 1 << unit->Combine.ScaleShiftRGB);
_mesa_TexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE,
- 1 << unit->CombineScaleShiftA);
+ 1 << unit->Combine.ScaleShiftA);
}
/* Restore texture object state */
/*@}*/
};
+/**
+ * Texture combine environment state.
+ *
+ * \todo
+ * If GL_NV_texture_env_combine4 is ever supported, the arrays in this
+ * structure will need to be expanded for 4 elements.
+ */
+struct gl_tex_env_combine_state {
+ GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
+ GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
+ GLenum SourceRGB[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
+ GLenum SourceA[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
+ GLenum OperandRGB[3]; /**< SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */
+ GLenum OperandA[3]; /**< SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */
+ GLuint ScaleShiftRGB; /**< 0, 1 or 2 */
+ GLuint ScaleShiftA; /**< 0, 1 or 2 */
+ GLuint _NumArgsRGB; /**< Number of inputs used for the combine mode. */
+ GLuint _NumArgsA; /**< Number of inputs used for the combine mode. */
+};
/**
* Texture unit record
/**
* \name GL_EXT_texture_env_combine
*/
- /*@{*/
- GLenum CombineModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
- GLenum CombineModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */
- GLenum CombineSourceRGB[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
- GLenum CombineSourceA[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */
- GLenum CombineOperandRGB[3]; /**< SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */
- GLenum CombineOperandA[3]; /**< SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */
- GLuint CombineScaleShiftRGB; /**< 0, 1 or 2 */
- GLuint CombineScaleShiftA; /**< 0, 1 or 2 */
- /*@}*/
+ struct gl_tex_env_combine_state Combine;
+
+ /**
+ * Derived state based on \c EnvMode and the \c BaseFormat of the
+ * currently enabled texture.
+ */
+ struct gl_tex_env_combine_state _EnvMode;
+
+ /**
+ * Currently enabled combiner state. This will point to either
+ * \c Combine or \c _EnvMode.
+ */
+ struct gl_tex_env_combine_state *_CurrentCombine;
struct gl_texture_object *Current1D;
struct gl_texture_object *Current2D;
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+/**
+ * \file texstate.c
+ *
+ * Texture state handling.
+ */
#include "glheader.h"
#include "colormac.h"
#define ENUM_TO_DOUBLE(X) ((GLdouble)(X))
#endif
+/**
+ * Default texture combine environment state. This is used to initialize
+ * a context's texture units and as the basis for converting "classic"
+ * texture environmnets to ARB_texture_env_combine style values.
+ */
+static const struct gl_tex_env_combine_state default_combine_state = {
+ GL_MODULATE, GL_MODULATE,
+ { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT },
+ { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT },
+ { GL_SRC_COLOR, GL_SRC_COLOR, GL_SRC_ALPHA },
+ { GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA },
+ 0, 0,
+ 2, 2
+};
void
dst->Texture.Unit[i].LodBias = src->Texture.Unit[i].LodBias;
/* GL_EXT_texture_env_combine */
- dst->Texture.Unit[i].CombineModeRGB = src->Texture.Unit[i].CombineModeRGB;
- dst->Texture.Unit[i].CombineModeA = src->Texture.Unit[i].CombineModeA;
- COPY_3V(dst->Texture.Unit[i].CombineSourceRGB, src->Texture.Unit[i].CombineSourceRGB);
- COPY_3V(dst->Texture.Unit[i].CombineSourceA, src->Texture.Unit[i].CombineSourceA);
- COPY_3V(dst->Texture.Unit[i].CombineOperandRGB, src->Texture.Unit[i].CombineOperandRGB);
- COPY_3V(dst->Texture.Unit[i].CombineOperandA, src->Texture.Unit[i].CombineOperandA);
- dst->Texture.Unit[i].CombineScaleShiftRGB = src->Texture.Unit[i].CombineScaleShiftRGB;
- dst->Texture.Unit[i].CombineScaleShiftA = src->Texture.Unit[i].CombineScaleShiftA;
+ dst->Texture.Unit[i].Combine.ModeRGB = src->Texture.Unit[i].Combine.ModeRGB;
+ dst->Texture.Unit[i].Combine.ModeA = src->Texture.Unit[i].Combine.ModeA;
+ COPY_3V(dst->Texture.Unit[i].Combine.SourceRGB, src->Texture.Unit[i].Combine.SourceRGB);
+ COPY_3V(dst->Texture.Unit[i].Combine.SourceA, src->Texture.Unit[i].Combine.SourceA);
+ COPY_3V(dst->Texture.Unit[i].Combine.OperandRGB, src->Texture.Unit[i].Combine.OperandRGB);
+ COPY_3V(dst->Texture.Unit[i].Combine.OperandA, src->Texture.Unit[i].Combine.OperandA);
+ dst->Texture.Unit[i].Combine.ScaleShiftRGB = src->Texture.Unit[i].Combine.ScaleShiftRGB;
+ dst->Texture.Unit[i].Combine.ScaleShiftA = src->Texture.Unit[i].Combine.ScaleShiftA;
/* texture object state */
_mesa_copy_texture_object(dst->Texture.Unit[i].Current1D,
const struct gl_texture_unit *texUnit = ctx->Texture.Unit + unit;
_mesa_printf("Texture Unit %d\n", unit);
_mesa_printf(" GL_TEXTURE_ENV_MODE = %s\n", _mesa_lookup_enum_by_nr(texUnit->EnvMode));
- _mesa_printf(" GL_COMBINE_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineModeRGB));
- _mesa_printf(" GL_COMBINE_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineModeA));
- _mesa_printf(" GL_SOURCE0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceRGB[0]));
- _mesa_printf(" GL_SOURCE1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceRGB[1]));
- _mesa_printf(" GL_SOURCE2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceRGB[2]));
- _mesa_printf(" GL_SOURCE0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceA[0]));
- _mesa_printf(" GL_SOURCE1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceA[1]));
- _mesa_printf(" GL_SOURCE2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceA[2]));
- _mesa_printf(" GL_OPERAND0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandRGB[0]));
- _mesa_printf(" GL_OPERAND1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandRGB[1]));
- _mesa_printf(" GL_OPERAND2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandRGB[2]));
- _mesa_printf(" GL_OPERAND0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandA[0]));
- _mesa_printf(" GL_OPERAND1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandA[1]));
- _mesa_printf(" GL_OPERAND2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandA[2]));
- _mesa_printf(" GL_RGB_SCALE = %d\n", 1 << texUnit->CombineScaleShiftRGB);
- _mesa_printf(" GL_ALPHA_SCALE = %d\n", 1 << texUnit->CombineScaleShiftA);
+ _mesa_printf(" GL_COMBINE_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.ModeRGB));
+ _mesa_printf(" GL_COMBINE_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.ModeA));
+ _mesa_printf(" GL_SOURCE0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[0]));
+ _mesa_printf(" GL_SOURCE1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[1]));
+ _mesa_printf(" GL_SOURCE2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[2]));
+ _mesa_printf(" GL_SOURCE0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[0]));
+ _mesa_printf(" GL_SOURCE1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[1]));
+ _mesa_printf(" GL_SOURCE2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[2]));
+ _mesa_printf(" GL_OPERAND0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[0]));
+ _mesa_printf(" GL_OPERAND1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[1]));
+ _mesa_printf(" GL_OPERAND2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[2]));
+ _mesa_printf(" GL_OPERAND0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[0]));
+ _mesa_printf(" GL_OPERAND1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[1]));
+ _mesa_printf(" GL_OPERAND2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[2]));
+ _mesa_printf(" GL_RGB_SCALE = %d\n", 1 << texUnit->Combine.ScaleShiftRGB);
+ _mesa_printf(" GL_ALPHA_SCALE = %d\n", 1 << texUnit->Combine.ScaleShiftA);
_mesa_printf(" GL_TEXTURE_ENV_COLOR = (%f, %f, %f, %f)\n", texUnit->EnvColor[0], texUnit->EnvColor[1], texUnit->EnvColor[2], texUnit->EnvColor[3]);
}
/* Texture Environment */
/**********************************************************************/
+/**
+ * Convert "classic" texture environment to ARB_texture_env_combine style
+ * environments.
+ *
+ * \param state texture_env_combine state vector to be filled-in.
+ * \param mode Classic texture environment mode (i.e., \c GL_REPLACE,
+ * \c GL_BLEND, \c GL_DECAL, etc.).
+ * \param tex_base_format Base format of the texture associated with the
+ * texture unit.
+ */
+static void
+calculate_derived_texenv( struct gl_tex_env_combine_state * state,
+ GLenum mode, GLenum tex_base_format )
+{
+ GLenum mode_rgb;
+ GLenum mode_a;
+
+ *state = default_combine_state;
+
+ switch( tex_base_format ) {
+ case GL_ALPHA:
+ state->SourceRGB[0] = GL_PREVIOUS;
+ break;
+
+ case GL_LUMINANCE_ALPHA:
+ case GL_INTENSITY:
+ case GL_RGBA:
+ break;
+
+ case GL_LUMINANCE:
+ case GL_RGB:
+ case GL_YCBCR_MESA:
+ state->SourceA[0] = GL_PREVIOUS;
+ break;
+
+ default:
+ state->SourceRGB[0] = GL_PREVIOUS;
+ state->SourceA[0] = GL_PREVIOUS;
+ state->ModeRGB = GL_REPLACE;
+ state->ModeA = GL_REPLACE;
+ ASSERT(0);
+ return;
+ }
+
+ switch( mode ) {
+ case GL_REPLACE:
+ case GL_MODULATE:
+ mode_rgb = (tex_base_format == GL_ALPHA) ? GL_REPLACE : mode;
+ mode_a = mode;
+ break;
+
+ case GL_DECAL:
+ mode_rgb = GL_INTERPOLATE;
+ mode_a = GL_REPLACE;
+
+ state->SourceA[0] = GL_PREVIOUS;
+
+ /* Having alpha / luminance / intensity textures replace using the
+ * incoming fragment color matches the definition in NV_texture_shader.
+ * The 1.5 spec simply marks these as "undefined".
+ */
+ switch( tex_base_format ) {
+ case GL_ALPHA:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ case GL_INTENSITY:
+ state->SourceRGB[0] = GL_PREVIOUS;
+ break;
+ case GL_RGB:
+ case GL_YCBCR_MESA:
+ mode_rgb = GL_REPLACE;
+ break;
+ case GL_RGBA:
+ state->SourceRGB[2] = GL_TEXTURE;
+ break;
+ }
+ break;
+
+ case GL_BLEND:
+ mode_rgb = GL_INTERPOLATE;
+ mode_a = GL_MODULATE;
+
+ switch( tex_base_format ) {
+ case GL_ALPHA:
+ mode_rgb = GL_REPLACE;
+ break;
+ case GL_INTENSITY:
+ mode_a = GL_INTERPOLATE;
+ /* FALLTHROUGH */
+ case GL_LUMINANCE:
+ case GL_RGB:
+ case GL_LUMINANCE_ALPHA:
+ case GL_RGBA:
+ case GL_YCBCR_MESA:
+ state->SourceRGB[2] = GL_TEXTURE;
+ state->SourceA[2] = GL_TEXTURE;
+ state->SourceRGB[0] = GL_CONSTANT;
+ state->OperandRGB[2] = GL_SRC_COLOR;
+ break;
+ }
+ break;
+
+ case GL_ADD:
+ mode_rgb = (tex_base_format == GL_ALPHA) ? GL_REPLACE : GL_ADD;
+ mode_a = (tex_base_format == GL_INTENSITY) ? GL_ADD : GL_MODULATE;
+ break;
+
+ default:
+ mode_rgb = GL_REPLACE;
+ mode_a = GL_REPLACE;
+ ASSERT(0);
+ break;
+ }
+
+ state->ModeRGB = (state->SourceRGB[0] != GL_PREVIOUS)
+ ? mode_rgb : GL_REPLACE;
+ state->ModeA = (state->SourceA[0] != GL_PREVIOUS)
+ ? mode_a : GL_REPLACE;
+}
void GLAPIENTRY
_mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texUnit->EnvMode = mode;
+
+ /* FIXME: Is this needed here or is having it in
+ * FIXME: update_texture_state enough?
+ */
+ if ( mode == GL_COMBINE ) {
+ texUnit->_CurrentCombine = & texUnit->Combine;
+ }
+ else if ( texUnit->_Current != NULL ) {
+ calculate_derived_texenv( & texUnit->_EnvMode, mode,
+ texUnit->_Current->Image[0][0]->Format );
+ texUnit->_CurrentCombine = & texUnit->_EnvMode;
+ }
}
else {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode);
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode);
return;
}
- if (texUnit->CombineModeRGB == mode)
+ if (texUnit->Combine.ModeRGB == mode)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineModeRGB = mode;
+ texUnit->Combine.ModeRGB = mode;
}
else {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
return;
}
- if (texUnit->CombineModeA == mode)
+ if (texUnit->Combine.ModeA == mode)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineModeA = mode;
+ texUnit->Combine.ModeA = mode;
}
else {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
(ctx->Extensions.ATI_texture_env_combine3 &&
(source == GL_ZERO || source == GL_ONE))) {
/* legal */
- if (texUnit->CombineSourceRGB[s] == source)
+ if (texUnit->Combine.SourceRGB[s] == source)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineSourceRGB[s] = source;
+ texUnit->Combine.SourceRGB[s] = source;
}
else {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", source);
(ctx->Extensions.ATI_texture_env_combine3 &&
(source == GL_ZERO || source == GL_ONE))) {
/* legal */
- if (texUnit->CombineSourceA[s] == source)
+ if (texUnit->Combine.SourceA[s] == source)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineSourceA[s] = source;
+ texUnit->Combine.SourceA[s] = source;
}
else {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", source);
case GL_ONE_MINUS_SRC_COLOR:
case GL_SRC_ALPHA:
case GL_ONE_MINUS_SRC_ALPHA:
- if (texUnit->CombineOperandRGB[s] == operand)
+ if (texUnit->Combine.OperandRGB[s] == operand)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineOperandRGB[s] = operand;
+ texUnit->Combine.OperandRGB[s] = operand;
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand);
switch (operand) {
case GL_SRC_ALPHA:
case GL_ONE_MINUS_SRC_ALPHA:
- if (texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA] ==
+ if (texUnit->Combine.OperandA[pname-GL_OPERAND0_ALPHA] ==
operand)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA] = operand;
+ texUnit->Combine.OperandA[pname-GL_OPERAND0_ALPHA] = operand;
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand);
case GL_ONE_MINUS_SRC_COLOR: /* ARB combine only */
case GL_SRC_ALPHA:
case GL_ONE_MINUS_SRC_ALPHA: /* ARB combine only */
- if (texUnit->CombineOperandRGB[2] == operand)
+ if (texUnit->Combine.OperandRGB[2] == operand)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineOperandRGB[2] = operand;
+ texUnit->Combine.OperandRGB[2] = operand;
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand);
switch (operand) {
case GL_SRC_ALPHA:
case GL_ONE_MINUS_SRC_ALPHA: /* ARB combine only */
- if (texUnit->CombineOperandA[2] == operand)
+ if (texUnit->Combine.OperandA[2] == operand)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineOperandA[2] = operand;
+ texUnit->Combine.OperandA[2] = operand;
break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand);
"glTexEnv(GL_RGB_SCALE not 1, 2 or 4)" );
return;
}
- if (texUnit->CombineScaleShiftRGB == newshift)
+ if (texUnit->Combine.ScaleShiftRGB == newshift)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineScaleShiftRGB = newshift;
+ texUnit->Combine.ScaleShiftRGB = newshift;
}
else {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
"glTexEnv(GL_ALPHA_SCALE not 1, 2 or 4)" );
return;
}
- if (texUnit->CombineScaleShiftA == newshift)
+ if (texUnit->Combine.ScaleShiftA == newshift)
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
- texUnit->CombineScaleShiftA = newshift;
+ texUnit->Combine.ScaleShiftA = newshift;
}
else {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname);
case GL_COMBINE_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineModeRGB;
+ *params = (GLfloat) texUnit->Combine.ModeRGB;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_COMBINE_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineModeA;
+ *params = (GLfloat) texUnit->Combine.ModeA;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_SOURCE0_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineSourceRGB[0];
+ *params = (GLfloat) texUnit->Combine.SourceRGB[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_SOURCE1_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineSourceRGB[1];
+ *params = (GLfloat) texUnit->Combine.SourceRGB[1];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_SOURCE2_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineSourceRGB[2];
+ *params = (GLfloat) texUnit->Combine.SourceRGB[2];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_SOURCE0_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineSourceA[0];
+ *params = (GLfloat) texUnit->Combine.SourceA[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_SOURCE1_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineSourceA[1];
+ *params = (GLfloat) texUnit->Combine.SourceA[1];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_SOURCE2_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineSourceA[2];
+ *params = (GLfloat) texUnit->Combine.SourceA[2];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_OPERAND0_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineOperandRGB[0];
+ *params = (GLfloat) texUnit->Combine.OperandRGB[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_OPERAND1_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineOperandRGB[1];
+ *params = (GLfloat) texUnit->Combine.OperandRGB[1];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_OPERAND2_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineOperandRGB[2];
+ *params = (GLfloat) texUnit->Combine.OperandRGB[2];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_OPERAND0_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineOperandA[0];
+ *params = (GLfloat) texUnit->Combine.OperandA[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_OPERAND1_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineOperandA[1];
+ *params = (GLfloat) texUnit->Combine.OperandA[1];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_OPERAND2_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLfloat) texUnit->CombineOperandA[2];
+ *params = (GLfloat) texUnit->Combine.OperandA[2];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)");
case GL_RGB_SCALE:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- if (texUnit->CombineScaleShiftRGB == 0)
+ if (texUnit->Combine.ScaleShiftRGB == 0)
*params = 1.0;
- else if (texUnit->CombineScaleShiftRGB == 1)
+ else if (texUnit->Combine.ScaleShiftRGB == 1)
*params = 2.0;
else
*params = 4.0;
case GL_ALPHA_SCALE:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- if (texUnit->CombineScaleShiftA == 0)
+ if (texUnit->Combine.ScaleShiftA == 0)
*params = 1.0;
- else if (texUnit->CombineScaleShiftA == 1)
+ else if (texUnit->Combine.ScaleShiftA == 1)
*params = 2.0;
else
*params = 4.0;
case GL_COMBINE_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineModeRGB;
+ *params = (GLint) texUnit->Combine.ModeRGB;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_COMBINE_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineModeA;
+ *params = (GLint) texUnit->Combine.ModeA;
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_SOURCE0_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineSourceRGB[0];
+ *params = (GLint) texUnit->Combine.SourceRGB[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_SOURCE1_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineSourceRGB[1];
+ *params = (GLint) texUnit->Combine.SourceRGB[1];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_SOURCE2_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineSourceRGB[2];
+ *params = (GLint) texUnit->Combine.SourceRGB[2];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_SOURCE0_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineSourceA[0];
+ *params = (GLint) texUnit->Combine.SourceA[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_SOURCE1_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineSourceA[1];
+ *params = (GLint) texUnit->Combine.SourceA[1];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_SOURCE2_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineSourceA[2];
+ *params = (GLint) texUnit->Combine.SourceA[2];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_OPERAND0_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineOperandRGB[0];
+ *params = (GLint) texUnit->Combine.OperandRGB[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_OPERAND1_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineOperandRGB[1];
+ *params = (GLint) texUnit->Combine.OperandRGB[1];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_OPERAND2_RGB:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineOperandRGB[2];
+ *params = (GLint) texUnit->Combine.OperandRGB[2];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_OPERAND0_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineOperandA[0];
+ *params = (GLint) texUnit->Combine.OperandA[0];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_OPERAND1_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineOperandA[1];
+ *params = (GLint) texUnit->Combine.OperandA[1];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_OPERAND2_ALPHA:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- *params = (GLint) texUnit->CombineOperandA[2];
+ *params = (GLint) texUnit->Combine.OperandA[2];
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)");
case GL_RGB_SCALE:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- if (texUnit->CombineScaleShiftRGB == 0)
+ if (texUnit->Combine.ScaleShiftRGB == 0)
*params = 1;
- else if (texUnit->CombineScaleShiftRGB == 1)
+ else if (texUnit->Combine.ScaleShiftRGB == 1)
*params = 2;
else
*params = 4;
case GL_ALPHA_SCALE:
if (ctx->Extensions.EXT_texture_env_combine ||
ctx->Extensions.ARB_texture_env_combine) {
- if (texUnit->CombineScaleShiftA == 0)
+ if (texUnit->Combine.ScaleShiftA == 0)
*params = 1;
- else if (texUnit->CombineScaleShiftA == 1)
+ else if (texUnit->Combine.ScaleShiftA == 1)
*params = 2;
else
*params = 4;
if (texUnit->_ReallyEnabled)
ctx->Texture._EnabledUnits |= (1 << unit);
+ if ( texUnit->EnvMode == GL_COMBINE ) {
+ texUnit->_CurrentCombine = & texUnit->Combine;
+ }
+ else {
+ calculate_derived_texenv( & texUnit->_EnvMode,
+ texUnit->EnvMode,
+ texUnit->_Current->Image[0][0]->Format );
+ texUnit->_CurrentCombine = & texUnit->_EnvMode;
+ }
+
+ switch (texUnit->_CurrentCombine->ModeRGB) {
+ case GL_REPLACE:
+ texUnit->_CurrentCombine->_NumArgsRGB = 1;
+ break;
+ case GL_MODULATE:
+ case GL_ADD:
+ case GL_ADD_SIGNED:
+ case GL_SUBTRACT:
+ case GL_DOT3_RGB:
+ case GL_DOT3_RGBA:
+ case GL_DOT3_RGB_EXT:
+ case GL_DOT3_RGBA_EXT:
+ texUnit->_CurrentCombine->_NumArgsRGB = 2;
+ break;
+ case GL_INTERPOLATE:
+ case GL_MODULATE_ADD_ATI:
+ case GL_MODULATE_SIGNED_ADD_ATI:
+ case GL_MODULATE_SUBTRACT_ATI:
+ texUnit->_CurrentCombine->_NumArgsRGB = 3;
+ break;
+ default:
+ texUnit->_CurrentCombine->_NumArgsRGB = 0;
+ ASSERT(0);
+ break;
+ }
+
+ switch (texUnit->_CurrentCombine->ModeA) {
+ case GL_REPLACE:
+ texUnit->_CurrentCombine->_NumArgsA = 1;
+ break;
+ case GL_MODULATE:
+ case GL_ADD:
+ case GL_ADD_SIGNED:
+ case GL_SUBTRACT:
+ texUnit->_CurrentCombine->_NumArgsA = 2;
+ break;
+ case GL_INTERPOLATE:
+ case GL_MODULATE_ADD_ATI:
+ case GL_MODULATE_SIGNED_ADD_ATI:
+ case GL_MODULATE_SUBTRACT_ATI:
+ texUnit->_CurrentCombine->_NumArgsA = 3;
+ break;
+ default:
+ texUnit->_CurrentCombine->_NumArgsA = 0;
+ ASSERT(0);
+ break;
+ }
+
if (texUnit->TexGenEnabled) {
if (texUnit->TexGenEnabled & S_BIT) {
texUnit->_GenFlags |= texUnit->_GenBitS;
texUnit->EnvMode = GL_MODULATE;
ASSIGN_4V( texUnit->EnvColor, 0.0, 0.0, 0.0, 0.0 );
- texUnit->CombineModeRGB = GL_MODULATE;
- texUnit->CombineModeA = GL_MODULATE;
- texUnit->CombineSourceRGB[0] = GL_TEXTURE;
- texUnit->CombineSourceRGB[1] = GL_PREVIOUS_EXT;
- texUnit->CombineSourceRGB[2] = GL_CONSTANT_EXT;
- texUnit->CombineSourceA[0] = GL_TEXTURE;
- texUnit->CombineSourceA[1] = GL_PREVIOUS_EXT;
- texUnit->CombineSourceA[2] = GL_CONSTANT_EXT;
- texUnit->CombineOperandRGB[0] = GL_SRC_COLOR;
- texUnit->CombineOperandRGB[1] = GL_SRC_COLOR;
- texUnit->CombineOperandRGB[2] = GL_SRC_ALPHA;
- texUnit->CombineOperandA[0] = GL_SRC_ALPHA;
- texUnit->CombineOperandA[1] = GL_SRC_ALPHA;
- texUnit->CombineOperandA[2] = GL_SRC_ALPHA;
- texUnit->CombineScaleShiftRGB = 0;
- texUnit->CombineScaleShiftA = 0;
+ texUnit->Combine = default_combine_state;
+ texUnit->_EnvMode = default_combine_state;
+ texUnit->_CurrentCombine = & texUnit->_EnvMode;
texUnit->TexGenEnabled = 0;
texUnit->GenModeS = GL_EYE_LINEAR;
const GLint rowAb1 = (rowA[k] >> 11) & 0x1f;
const GLint rowBb0 = (rowB[j] >> 11) & 0x1f;
const GLint rowBb1 = (rowB[k] >> 11) & 0x1f;
- const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4;
- const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4;
- const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
dst[i] = (blue << 11) | (green << 5) | red;
}
}
const GLint rowAa1 = (rowA[k] >> 12) & 0xf;
const GLint rowBa0 = (rowB[j] >> 12) & 0xf;
const GLint rowBa1 = (rowB[k] >> 12) & 0xf;
- const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4;
- const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4;
- const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4;
- const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 4;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red;
}
}
const GLint rowAa1 = (rowA[k] >> 15) & 0x1;
const GLint rowBa0 = (rowB[j] >> 15) & 0x1;
const GLint rowBa1 = (rowB[k] >> 15) & 0x1;
- const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4;
- const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4;
- const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4;
- const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 4;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
+ const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red;
}
}
const GLint rowAb1 = (rowA[k] >> 5) & 0x7;
const GLint rowBb0 = (rowB[j] >> 5) & 0x7;
const GLint rowBb1 = (rowB[k] >> 5) & 0x7;
- const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4;
- const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4;
- const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4;
+ const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
+ const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
+ const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
dst[i] = (blue << 5) | (green << 2) | red;
}
}
/**
* Do texture application for GL_ARB/EXT_texture_env_combine.
* This function also supports GL_{EXT,ARB}_texture_env_dot3 and
- * GL_ATI_texture_env_combine3
+ * GL_ATI_texture_env_combine3. Since "classic" texture environments are
+ * implemented using GL_ARB_texture_env_combine-like state, this same function
+ * is used for classic texture environment application as well.
*
* \param ctx rendering context
* \param textureUnit the texture unit to apply
const struct gl_texture_unit *textureUnit = &(ctx->Texture.Unit[unit]);
const GLchan (*argRGB [3])[4];
const GLchan (*argA [3])[4];
- const GLuint RGBshift = textureUnit->CombineScaleShiftRGB;
- const GLuint Ashift = textureUnit->CombineScaleShiftA;
+ const GLuint RGBshift = textureUnit->_CurrentCombine->ScaleShiftRGB;
+ const GLuint Ashift = textureUnit->_CurrentCombine->ScaleShiftA;
#if CHAN_TYPE == GL_FLOAT
const GLchan RGBmult = (GLfloat) (1 << RGBshift);
const GLchan Amult = (GLfloat) (1 << Ashift);
/*
printf("modeRGB 0x%x modeA 0x%x srcRGB1 0x%x srcA1 0x%x srcRGB2 0x%x srcA2 0x%x\n",
- textureUnit->CombineModeRGB,
- textureUnit->CombineModeA,
- textureUnit->CombineSourceRGB[0],
- textureUnit->CombineSourceA[0],
- textureUnit->CombineSourceRGB[1],
- textureUnit->CombineSourceA[1]);
+ textureUnit->_CurrentCombine->ModeRGB,
+ textureUnit->_CurrentCombine->ModeA,
+ textureUnit->_CurrentCombine->SourceRGB[0],
+ textureUnit->_CurrentCombine->SourceA[0],
+ textureUnit->_CurrentCombine->SourceRGB[1],
+ textureUnit->_CurrentCombine->SourceA[1]);
*/
/*
* Do operand setup for up to 3 operands. Loop over the terms.
*/
- switch (textureUnit->CombineModeRGB) {
- case GL_REPLACE:
- numColorArgs = 1;
- break;
- case GL_MODULATE:
- case GL_ADD:
- case GL_ADD_SIGNED:
- case GL_SUBTRACT:
- case GL_DOT3_RGB:
- case GL_DOT3_RGBA:
- case GL_DOT3_RGB_EXT:
- case GL_DOT3_RGBA_EXT:
- numColorArgs = 2;
- break;
- case GL_INTERPOLATE:
- case GL_MODULATE_ADD_ATI:
- case GL_MODULATE_SIGNED_ADD_ATI:
- case GL_MODULATE_SUBTRACT_ATI:
- numColorArgs = 3;
- break;
- default:
- numColorArgs = 0;
- ASSERT(0);
- break;
- }
-
- switch (textureUnit->CombineModeA) {
- case GL_REPLACE:
- numAlphaArgs = 1;
- break;
- case GL_MODULATE:
- case GL_ADD:
- case GL_ADD_SIGNED:
- case GL_SUBTRACT:
- numAlphaArgs = 2;
- break;
- case GL_INTERPOLATE:
- case GL_MODULATE_ADD_ATI:
- case GL_MODULATE_SIGNED_ADD_ATI:
- case GL_MODULATE_SUBTRACT_ATI:
- numAlphaArgs = 3;
- break;
- default:
- numAlphaArgs = 0;
- ASSERT(0);
- break;
- }
+ numColorArgs = textureUnit->_CurrentCombine->_NumArgsRGB;
+ numAlphaArgs = textureUnit->_CurrentCombine->_NumArgsA;
for (j = 0; j < numColorArgs; j++) {
- const GLenum srcRGB = textureUnit->CombineSourceRGB[j];
+ const GLenum srcRGB = textureUnit->_CurrentCombine->SourceRGB[j];
switch (srcRGB) {
}
}
- if (textureUnit->CombineOperandRGB[j] != GL_SRC_COLOR) {
+ if (textureUnit->_CurrentCombine->OperandRGB[j] != GL_SRC_COLOR) {
const GLchan (*src)[4] = argRGB[j];
GLchan (*dst)[4] = ccolor[j];
/* point to new arg[j] storage */
argRGB[j] = (const GLchan (*)[4]) ccolor[j];
- if (textureUnit->CombineOperandRGB[j] == GL_ONE_MINUS_SRC_COLOR) {
+ if (textureUnit->_CurrentCombine->OperandRGB[j] == GL_ONE_MINUS_SRC_COLOR) {
for (i = 0; i < n; i++) {
dst[i][RCOMP] = CHAN_MAX - src[i][RCOMP];
dst[i][GCOMP] = CHAN_MAX - src[i][GCOMP];
dst[i][BCOMP] = CHAN_MAX - src[i][BCOMP];
}
}
- else if (textureUnit->CombineOperandRGB[j] == GL_SRC_ALPHA) {
+ else if (textureUnit->_CurrentCombine->OperandRGB[j] == GL_SRC_ALPHA) {
for (i = 0; i < n; i++) {
dst[i][RCOMP] = src[i][ACOMP];
dst[i][GCOMP] = src[i][ACOMP];
}
}
else {
- ASSERT(textureUnit->CombineOperandRGB[j] ==GL_ONE_MINUS_SRC_ALPHA);
+ ASSERT(textureUnit->_CurrentCombine->OperandRGB[j] ==GL_ONE_MINUS_SRC_ALPHA);
for (i = 0; i < n; i++) {
dst[i][RCOMP] = CHAN_MAX - src[i][ACOMP];
dst[i][GCOMP] = CHAN_MAX - src[i][ACOMP];
for (j = 0; j < numAlphaArgs; j++) {
- const GLenum srcA = textureUnit->CombineSourceA[j];
+ const GLenum srcA = textureUnit->_CurrentCombine->SourceA[j];
switch (srcA) {
case GL_TEXTURE:
}
}
- if (textureUnit->CombineOperandA[j] == GL_ONE_MINUS_SRC_ALPHA) {
+ if (textureUnit->_CurrentCombine->OperandA[j] == GL_ONE_MINUS_SRC_ALPHA) {
const GLchan (*src)[4] = argA[j];
GLchan (*dst)[4] = ccolor[j];
argA[j] = (const GLchan (*)[4]) ccolor[j];
/*
* Do the texture combine.
*/
- switch (textureUnit->CombineModeRGB) {
+ switch (textureUnit->_CurrentCombine->ModeRGB) {
case GL_REPLACE:
{
const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0];
_mesa_problem(ctx, "invalid combine mode");
}
- switch (textureUnit->CombineModeA) {
+ switch (textureUnit->_CurrentCombine->ModeA) {
case GL_REPLACE:
{
const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0];
* were written such that the GL_COMBINE_ALPHA value could be set to
* GL_DOT3.
*/
- if (textureUnit->CombineModeRGB == GL_DOT3_RGBA_EXT ||
- textureUnit->CombineModeRGB == GL_DOT3_RGBA) {
+ if (textureUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA_EXT ||
+ textureUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA) {
for (i = 0; i < n; i++) {
rgba[i][ACOMP] = rgba[i][RCOMP];
}
/**
- * Implement NVIDIA's GL_NV_texture_env_combine4 extension when
- * texUnit->EnvMode == GL_COMBINE4_NV.
- */
-static INLINE void
-texture_combine4( const GLcontext *ctx, GLuint unit, GLuint n,
- CONST GLchan (*primary_rgba)[4],
- CONST GLchan *texelBuffer,
- GLchan (*rgba)[4] )
-{
-}
-
-
-
-/**
* Apply a conventional OpenGL texture env mode (REPLACE, ADD, BLEND,
* MODULATE, or DECAL) to an array of fragments.
* Input: textureUnit - pointer to texture unit to apply
for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
if (ctx->Texture.Unit[unit]._ReallyEnabled) {
const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
- if (texUnit->EnvMode == GL_COMBINE) {
- /* GL_ARB/EXT_texture_env_combine */
+ if (texUnit->_CurrentCombine != &texUnit->_EnvMode ) {
texture_combine( ctx, unit, span->end,
(CONST GLchan (*)[4]) primary_rgba,
swrast->TexelBuffer,
span->array->rgba );
}
- else if (texUnit->EnvMode == GL_COMBINE4_NV) {
- /* GL_NV_texture_env_combine4 */
- texture_combine4( ctx, unit, span->end,
- (CONST GLchan (*)[4]) primary_rgba,
- swrast->TexelBuffer,
- span->array->rgba );
- }
else {
/* conventional texture blend */
const GLchan (*texels)[4] = (const GLchan (*)[4])
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