diff options
| -rw-r--r-- | src/glsl/ir_constant_expression.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp index 2c80c8b5e0..809ea609a3 100644 --- a/src/glsl/ir_constant_expression.cpp +++ b/src/glsl/ir_constant_expression.cpp @@ -977,7 +977,14 @@ ir_call::constant_expression_value() } else if (strcmp(callee, "mod") == 0) { expr = new(mem_ctx) ir_expression(ir_binop_mod, type, op[0], op[1]); } else if (strcmp(callee, "normalize") == 0) { - return NULL; /* FINISHME: implement this */ + assert(op[0]->type->is_float()); + float length = sqrtf(dot(op[0], op[0])); + + if (length == 0) + return ir_constant::zero(mem_ctx, this->type); + + for (unsigned c = 0; c < op[0]->type->components(); c++) + data.f[c] = op[0]->value.f[c] / length; } else if (strcmp(callee, "not") == 0) { expr = new(mem_ctx) ir_expression(ir_unop_logic_not, type, op[0], NULL); } else if (strcmp(callee, "notEqual") == 0) { |