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ir_constant_expression: Add support for the "greaterThan" builtin.

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This commit is contained in:
Kenneth Graunke
2010-07-21 18:07:43 -07:00
parent 319f4949e0
commit 7f042b9812
1 changed files with 16 additions and 1 deletions
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17
src/glsl/ir_constant_expression.cpp
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@@ -893,7 +893,22 @@ ir_call::constant_expression_value()
} else if (strcmp(callee, "fwidth") == 0) {
return ir_constant::zero(mem_ctx, this->type);
} else if (strcmp(callee, "greaterThan") == 0) {
return NULL; /* FINISHME: implement this */
assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
for (unsigned c = 0; c < op[0]->type->components(); c++) {
switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.b[c] = op[0]->value.u[c] > op[1]->value.u[c];
break;
case GLSL_TYPE_INT:
data.b[c] = op[0]->value.i[c] > op[1]->value.i[c];
break;
case GLSL_TYPE_FLOAT:
data.b[c] = op[0]->value.f[c] > op[1]->value.f[c];
break;
default:
assert(!"Should not get here.");
}
}
} else if (strcmp(callee, "greaterThanEqual") == 0) {
return NULL; /* FINISHME: implement this */
} else if (strcmp(callee, "inversesqrt") == 0) {