(((GLuint)(envColor[2] * 255.0f)) << 16) |
(((GLuint)(envColor[3] * 255.0f)) << 24));
break;
-#if 0
- {
- FxU32 A_RGB, B_RGB, C_RGB, D_RGB;
- FxU32 Amode_RGB, Bmode_RGB;
- FxBool Cinv_RGB, Dinv_RGB, Ginv_RGB;
- FxU32 Shift_RGB;
- FxU32 A_A, B_A, C_A, D_A;
- FxU32 Amode_A, Bmode_A;
- FxBool Cinv_A, Dinv_A, Ginv_A;
- FxU32 Shift_A;
-
- /*
- *
- * In the formulas below, we write:
- * o "1(x)" for the identity function applied to x,
- * so 1(x) = x.
- * o "0(x)" for the constant function 0, so
- * 0(x) = 0 for all values of x.
- *
- * Calculate the color combination.
- */
- Shift_RGB = texUnit->CombineScaleShiftRGB;
- Shift_A = texUnit->CombineScaleShiftA;
- switch (texUnit->CombineModeRGB) {
- case GL_REPLACE:
- /*
- * The formula is: Arg0
- * We implement this by the formula:
- * (Arg0 + 0(0))*(1-0) + 0
- */
- TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
- incomingRGB, incomingAlpha);
- TEXENV_SETUP_MODE_RGB(Amode_RGB,
- texUnit->CombineOperandRGB[0]);
- B_RGB = C_RGB = D_RGB = GR_CMBX_ZERO;
- Bmode_RGB = GR_FUNC_MODE_ZERO;
- Cinv_RGB = FXTRUE;
- Dinv_RGB = Ginv_RGB = FXFALSE;
- break;
- case GL_MODULATE:
- /*
- * The formula is: Arg0 * Arg1
- *
- * We implement this by the formula
- * (Arg0 + 0(0)) * Arg1 + 0(0)
- */
- TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
- incomingRGB, incomingAlpha);
- TEXENV_SETUP_MODE_RGB(Amode_RGB,
- texUnit->CombineOperandRGB[0]);
- B_RGB = GR_CMBX_ZERO;
- Bmode_RGB = GR_CMBX_ZERO;
- TEXENV_SETUP_ARG_RGB(C_RGB,
- texUnit->CombineSourceRGB[1],
- texUnit->CombineOperandRGB[1],
- incomingRGB, incomingAlpha);
- Cinv_RGB = TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandRGB[1]);
- D_RGB = GR_CMBX_ZERO;
- Dinv_RGB = Ginv_RGB = FXFALSE;
- break;
- case GL_ADD:
- /*
- * The formula is Arg0 + Arg1
- */
- TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
- incomingRGB, incomingAlpha);
- TEXENV_SETUP_MODE_RGB(Amode_RGB,
- texUnit->CombineOperandRGB[0]);
- TEXENV_SETUP_ARG_RGB(B_RGB,
- texUnit->CombineSourceRGB[1],
- texUnit->CombineOperandRGB[1],
- incomingRGB, incomingAlpha);
- TEXENV_SETUP_MODE_RGB(Bmode_RGB,
- texUnit->CombineOperandRGB[1]);
- C_RGB = D_RGB = GR_CMBX_ZERO;
- Cinv_RGB = FXTRUE;
- Dinv_RGB = Ginv_RGB = FXFALSE;
- break;
- case GL_ADD_SIGNED_EXT:
- /*
- * The formula is: Arg0 + Arg1 - 0.5.
- * We compute this by calculating:
- * (Arg0 - 1/2) + Arg1 if op0 is SRC_{COLOR,ALPHA}
- * Arg0 + (Arg1 - 1/2) if op1 is SRC_{COLOR,ALPHA}
- * If both op0 and op1 are ONE_MINUS_SRC_{COLOR,ALPHA}
- * we cannot implement the formula properly.
- */
- TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
- incomingRGB, incomingAlpha);
- TEXENV_SETUP_ARG_RGB(B_RGB,
- texUnit->CombineSourceRGB[1],
- texUnit->CombineOperandRGB[1],
- incomingRGB, incomingAlpha);
- if (!TEXENV_OPERAND_INVERTED(texUnit->CombineOperandRGB[0])) {
- /*
- * A is not inverted. So, choose it.
- */
- Amode_RGB = GR_FUNC_MODE_X_MINUS_HALF;
- if (!TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandRGB[1])) {
- Bmode_RGB = GR_FUNC_MODE_X;
- }
- else {
- Bmode_RGB = GR_FUNC_MODE_ONE_MINUS_X;
- }
- }
- else {
- /*
- * A is inverted, so try to subtract 1/2
- * from B.
- */
- Amode_RGB = GR_FUNC_MODE_ONE_MINUS_X;
- if (!TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandRGB[1])) {
- Bmode_RGB = GR_FUNC_MODE_X_MINUS_HALF;
- }
- else {
- /*
- * Both are inverted. This is the case
- * we cannot handle properly. We just
- * choose to not add the - 1/2.
- */
- Bmode_RGB = GR_FUNC_MODE_ONE_MINUS_X;
- return GL_FALSE;
- }
- }
- C_RGB = D_RGB = GR_CMBX_ZERO;
- Cinv_RGB = FXTRUE;
- Dinv_RGB = Ginv_RGB = FXFALSE;
- break;
- case GL_INTERPOLATE_EXT:
- /*
- * The formula is: Arg0 * Arg2 + Arg1 * (1 - Arg2).
- * We compute this by the formula:
- * (Arg0 - Arg1) * Arg2 + Arg1
- * == Arg0 * Arg2 - Arg1 * Arg2 + Arg1
- * == Arg0 * Arg2 + Arg1 * (1 - Arg2)
- * However, if both Arg1 is ONE_MINUS_X, the HW does
- * not support it properly.
- */
- TEXENV_SETUP_ARG_RGB(A_RGB,
- texUnit->CombineSourceRGB[0],
- texUnit->CombineOperandRGB[0],
- incomingRGB, incomingAlpha);
- TEXENV_SETUP_MODE_RGB(Amode_RGB,
- texUnit->CombineOperandRGB[0]);
- TEXENV_SETUP_ARG_RGB(B_RGB,
- texUnit->CombineSourceRGB[1],
- texUnit->CombineOperandRGB[1],
- incomingRGB, incomingAlpha);
- if (TEXENV_OPERAND_INVERTED(texUnit->CombineOperandRGB[1])) {
- /*
- * This case is wrong.
- */
- Bmode_RGB = GR_FUNC_MODE_NEGATIVE_X;
- return GL_FALSE;
- }
- else {
- Bmode_RGB = GR_FUNC_MODE_NEGATIVE_X;
- }
- /*
- * The Source/Operand for the C value must
- * specify some kind of alpha value.
- */
- TEXENV_SETUP_ARG_A(C_RGB,
- texUnit->CombineSourceRGB[2],
- texUnit->CombineOperandRGB[2],
- incomingAlpha);
- Cinv_RGB = FXFALSE;
- D_RGB = GR_CMBX_B;
- Dinv_RGB = Ginv_RGB = FXFALSE;
- break;
- default:
- /*
- * This is here mostly to keep from getting
- * a compiler warning about these not being set.
- * However, this should set all the texture values
- * to zero.
- */
- A_RGB = B_RGB = C_RGB = D_RGB = GR_CMBX_ZERO;
- Amode_RGB = Bmode_RGB = GR_FUNC_MODE_X;
- Cinv_RGB = Dinv_RGB = Ginv_RGB = FXFALSE;
- break;
- }
- /*
- * Calculate the alpha combination.
- */
- switch (texUnit->CombineModeA) {
- case GL_REPLACE:
- /*
- * The formula is: Arg0
- * We implement this by the formula:
- * (Arg0 + 0(0))*(1-0) + 0
- */
- TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
- incomingAlpha);
- TEXENV_SETUP_MODE_A(Amode_A,
- texUnit->CombineOperandA[0]);
- B_A = GR_CMBX_ITALPHA;
- Bmode_A = GR_FUNC_MODE_ZERO;
- C_A = D_A = GR_CMBX_ZERO;
- Cinv_A = FXTRUE;
- Dinv_A = Ginv_A = FXFALSE;
- break;
- case GL_MODULATE:
- /*
- * The formula is: Arg0 * Arg1
- *
- * We implement this by the formula
- * (Arg0 + 0(0)) * Arg1 + 0(0)
- */
- TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
- incomingAlpha);
- TEXENV_SETUP_MODE_A(Amode_A,
- texUnit->CombineOperandA[0]);
- B_A = GR_CMBX_ZERO;
- Bmode_A = GR_CMBX_ZERO;
- TEXENV_SETUP_ARG_A(C_A,
- texUnit->CombineSourceA[1],
- texUnit->CombineOperandA[1],
- incomingAlpha);
- Cinv_A = TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandA[1]);
- D_A = GR_CMBX_ZERO;
- Dinv_A = Ginv_A = FXFALSE;
- break;
- case GL_ADD:
- /*
- * The formula is Arg0 + Arg1
- */
- TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
- incomingAlpha);
- TEXENV_SETUP_MODE_A(Amode_A,
- texUnit->CombineOperandA[0]);
- TEXENV_SETUP_ARG_A(B_A,
- texUnit->CombineSourceA[1],
- texUnit->CombineOperandA[1],
- incomingAlpha);
- TEXENV_SETUP_MODE_A(Bmode_A,
- texUnit->CombineOperandA[1]);
- C_A = D_A = GR_CMBX_ZERO;
- Cinv_A = FXTRUE;
- Dinv_A = Ginv_A = FXFALSE;
- break;
- case GL_ADD_SIGNED_EXT:
- /*
- * The formula is: Arg0 + Arg1 - 0.5.
- * We compute this by calculating:
- * (Arg0 - 1/2) + Arg1 if op0 is SRC_{COLOR,ALPHA}
- * Arg0 + (Arg1 - 1/2) if op1 is SRC_{COLOR,ALPHA}
- * If both op0 and op1 are ONE_MINUS_SRC_{COLOR,ALPHA}
- * we cannot implement the formula properly.
- */
- TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
- incomingAlpha);
- TEXENV_SETUP_ARG_A(B_A,
- texUnit->CombineSourceA[1],
- texUnit->CombineOperandA[1],
- incomingAlpha);
- if (!TEXENV_OPERAND_INVERTED(texUnit->CombineOperandA[0])) {
- /*
- * A is not inverted. So, choose it.
- */
- Amode_A = GR_FUNC_MODE_X_MINUS_HALF;
- if (!TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandA[1])) {
- Bmode_A = GR_FUNC_MODE_X;
- } else {
- Bmode_A = GR_FUNC_MODE_ONE_MINUS_X;
- }
- } else {
- /*
- * A is inverted, so try to subtract 1/2
- * from B.
- */
- Amode_A = GR_FUNC_MODE_ONE_MINUS_X;
- if (!TEXENV_OPERAND_INVERTED
- (texUnit->CombineOperandA[1])) {
- Bmode_A = GR_FUNC_MODE_X_MINUS_HALF;
- } else {
- /*
- * Both are inverted. This is the case
- * we cannot handle properly. We just
- * choose to not add the - 1/2.
- */
- Bmode_A = GR_FUNC_MODE_ONE_MINUS_X;
- return GL_FALSE;
- }
- }
- C_A = D_A = GR_CMBX_ZERO;
- Cinv_A = FXTRUE;
- Dinv_A = Ginv_A = FXFALSE;
- break;
- case GL_INTERPOLATE_EXT:
- /*
- * The formula is: Arg0 * Arg2 + Arg1 * (1 - Arg2).
- * We compute this by the formula:
- * (Arg0 - Arg1) * Arg2 + Arg1
- * == Arg0 * Arg2 - Arg1 * Arg2 + Arg1
- * == Arg0 * Arg2 + Arg1 * (1 - Arg2)
- * However, if both Arg1 is ONE_MINUS_X, the HW does
- * not support it properly.
- */
- TEXENV_SETUP_ARG_A(A_A,
- texUnit->CombineSourceA[0],
- texUnit->CombineOperandA[0],
- incomingAlpha);
- TEXENV_SETUP_MODE_A(Amode_A,
- texUnit->CombineOperandA[0]);
- TEXENV_SETUP_ARG_A(B_A,
- texUnit->CombineSourceA[1],
- texUnit->CombineOperandA[1],
- incomingAlpha);
- if (!TEXENV_OPERAND_INVERTED(texUnit->CombineOperandA[1])) {
- Bmode_A = GR_FUNC_MODE_NEGATIVE_X;
- }
- else {
- /*
- * This case is wrong.
- */
- Bmode_A = GR_FUNC_MODE_NEGATIVE_X;
- return GL_FALSE;
- }
- /*
- * The Source/Operand for the C value must
- * specify some kind of alpha value.
- */
- TEXENV_SETUP_ARG_A(C_A,
- texUnit->CombineSourceA[2],
- texUnit->CombineOperandA[2],
- incomingAlpha);
- Cinv_A = FXFALSE;
- D_A = GR_CMBX_B;
- Dinv_A = Ginv_A = FXFALSE;
- break;
- default:
- /*
- * This is here mostly to keep from getting
- * a compiler warning about these not being set.
- * However, this should set all the alpha values
- * to one.
- */
- A_A = B_A = C_A = D_A = GR_CMBX_ZERO;
- Amode_A = Bmode_A = GR_FUNC_MODE_X;
- Cinv_A = Dinv_A = FXFALSE;
- Ginv_A = FXTRUE;
- break;
- }
- /*
- * Save the parameters.
- */
- env->Color.SourceA = A_RGB;
- env->Color.ModeA = Amode_RGB;
- env->Color.SourceB = B_RGB;
- env->Color.ModeB = Bmode_RGB;
- env->Color.SourceC = C_RGB;
- env->Color.InvertC = Cinv_RGB;
- env->Color.SourceD = D_RGB;
- env->Color.InvertD = Dinv_RGB;
- env->Color.Shift = Shift_RGB;
- env->Color.Invert = Ginv_RGB;
- env->Alpha.SourceA = A_A;
- env->Alpha.ModeA = Amode_A;
- env->Alpha.SourceB = B_A;
- env->Alpha.ModeB = Bmode_A;
- env->Alpha.SourceC = C_A;
- env->Alpha.InvertC = Cinv_A;
- env->Alpha.SourceD = D_A;
- env->Alpha.InvertD = Dinv_A;
- env->Alpha.Shift = Shift_A;
- env->Alpha.Invert = Ginv_A;
- env->EnvColor = PACK_RGBA32(texUnit->EnvColor[0] * 255.0F,
- texUnit->EnvColor[1] * 255.0F,
- texUnit->EnvColor[2] * 255.0F,
- texUnit->EnvColor[3] * 255.0F);
- }
- break;
-#endif
+
default:
if (TDFX_DEBUG & VERBOSE_DRIVER) {
fprintf(stderr, "fxSetupTextureEnvNapalm_NoLock: %x Texture.EnvMode not yet supported\n",
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