diff options
| author | Kenneth Graunke <kenneth@whitecape.org> | 2010-07-08 23:11:14 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2010-07-14 15:50:27 -0700 |
| commit | 14b7b2660c771aa090477c11f85da998ec3d2570 (patch) | |
| tree | 18ab799cef17bcf81954587b057e98fca55407e6 /src/glsl/ir_constant_expression.cpp | |
| parent | 5e840dba4412b33ae49289efd357a60098ac2611 (diff) | |
ir_constant_expression: Add support for ir_unop_sign.
Diffstat (limited to 'src/glsl/ir_constant_expression.cpp')
| -rw-r--r-- | src/glsl/ir_constant_expression.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp index 06d7dd8fbe..5ba6264dd6 100644 --- a/src/glsl/ir_constant_expression.cpp +++ b/src/glsl/ir_constant_expression.cpp @@ -262,6 +262,24 @@ ir_constant_visitor::visit(ir_expression *ir) } break; + case ir_unop_sign: + for (unsigned c = 0; c < ir->operands[0]->type->components(); c++) { + switch (ir->type->base_type) { + case GLSL_TYPE_UINT: + data.u[c] = op[0]->value.i[c] > 0; + break; + case GLSL_TYPE_INT: + data.i[c] = (op[0]->value.i[c] > 0) - (op[0]->value.i[c] < 0); + break; + case GLSL_TYPE_FLOAT: + data.f[c] = float((op[0]->value.f[c] > 0)-(op[0]->value.f[c] < 0)); + break; + default: + assert(0); + } + } + break; + case ir_unop_rcp: assert(op[0]->type->base_type == GLSL_TYPE_FLOAT); for (unsigned c = 0; c < ir->operands[0]->type->components(); c++) { |