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ir_constant_expression: Add support for dot products.

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This commit is contained in:
Kenneth Graunke
2010-07-05 21:15:32 -07:00
committed by Ian Romanick
parent cf80a4d177
commit 3f4a0b8bb0
1 changed files with 20 additions and 0 deletions
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20
src/glsl/ir_constant_expression.cpp
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@@ -317,6 +317,26 @@ ir_constant_visitor::visit(ir_expression *ir)
}
break;
case ir_binop_dot:
assert(op[0]->type->is_vector() && op[1]->type->is_vector());
data.f[0] = 0;
for (c = 0; c < op[0]->type->components(); c++) {
switch (ir->operands[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.u[0] += op[0]->value.u[c] * op[1]->value.u[c];
break;
case GLSL_TYPE_INT:
data.i[0] += op[0]->value.i[c] * op[1]->value.i[c];
break;
case GLSL_TYPE_FLOAT:
data.f[0] += op[0]->value.f[c] * op[1]->value.f[c];
break;
default:
assert(0);
}
}
break;
case ir_binop_add:
assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
for (unsigned c = 0, c0 = 0, c1 = 0;