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ir_constant_expression: Stub out support for constant builtins.

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This commit is contained in:
Kenneth Graunke 2010-07-21 16:55:46 -07:00
parent f914915d8e
commit bafd89fa0f
1 changed files with 148 additions and 3 deletions
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151
src/glsl/ir_constant_expression.cpp
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@ -764,7 +764,152 @@ ir_constant::constant_expression_value()
ir_constant *
ir_call::constant_expression_value()
{
/* FINISHME: Handle CEs involving builtin function calls. */
return NULL;
}
if (this->type == glsl_type::error_type)
return NULL;
/* From the GLSL 1.20 spec, page 23:
* "Function calls to user-defined functions (non-built-in functions)
* cannot be used to form constant expressions."
*/
if (!this->callee->is_built_in)
return NULL;
unsigned num_parameters = 0;
/* Check if all parameters are constant */
ir_constant *op[3];
foreach_list(n, &this->actual_parameters) {
ir_constant *constant = ((ir_rvalue *) n)->constant_expression_value();
if (constant == NULL)
return NULL;
op[num_parameters] = constant;
assert(num_parameters < 3);
num_parameters++;
}
/* Individual cases below can either:
* - Assign "expr" a new ir_expression to evaluate (for basic opcodes)
* - Fill "data" with appopriate constant data
* - Return an ir_constant directly.
*/
void *mem_ctx = talloc_parent(this);
ir_expression *expr = NULL;
ir_constant_data data;
memset(&data, 0, sizeof(data));
const char *callee = this->callee_name();
if (strcmp(callee, "abs") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "all") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "any") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "asin") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "atan") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "dFdx") == 0 || strcmp(callee, "dFdy") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "ceil") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "clamp") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "cos") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "cosh") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "cross") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "degrees") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "distance") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "dot") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "equal") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "exp") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "exp2") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "faceforward") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "floor") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "fract") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "fwidth") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "greaterThan") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "greaterThanEqual") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "inversesqrt") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "length") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "lessThan") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "lessThanEqual") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "log") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "log2") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "matrixCompMult") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "max") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "min") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "mix") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "mod") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "normalize") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "not") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "notEqual") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "outerProduct") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "pow") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "radians") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "reflect") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "refract") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "sign") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "sin") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "sinh") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "smoothstep") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "sqrt") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "step") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "tan") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "tanh") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "transpose") == 0) {
return NULL; /* FINISHME: implement this */
} else {
/* Unsupported builtin - some are not allowed in constant expressions. */
return NULL;
}
if (expr != NULL)
return expr->constant_expression_value();
return new(mem_ctx) ir_constant(this->type, &data);
}