diff options
| author | Kenneth Graunke <kenneth@whitecape.org> | 2010-07-21 16:57:10 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2010-07-28 15:46:26 -0700 |
| commit | 38cb1b273f55f98349d981445cfe06351322b032 (patch) | |
| tree | fbe9582d40eff0f6856c060e05ddaa79fe0c43e1 /src/glsl/ir_constant_expression.cpp | |
| parent | 46d91615a2f6e1beaee98f40af957ba1a1a6b349 (diff) | |
ir_constant_expression: Add support for builtins dFdx, dFdy, and fwidth.
These always return zero (the derivative of a constant).
Diffstat (limited to 'src/glsl/ir_constant_expression.cpp')
| -rw-r--r-- | src/glsl/ir_constant_expression.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp index aa53d8d186..641589ed07 100644 --- a/src/glsl/ir_constant_expression.cpp +++ b/src/glsl/ir_constant_expression.cpp @@ -812,7 +812,7 @@ ir_call::constant_expression_value() } 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 */ + return ir_constant::zero(mem_ctx, this->type); } else if (strcmp(callee, "ceil") == 0) { return NULL; /* FINISHME: implement this */ } else if (strcmp(callee, "clamp") == 0) { @@ -842,7 +842,7 @@ ir_call::constant_expression_value() } else if (strcmp(callee, "fract") == 0) { return NULL; /* FINISHME: implement this */ } else if (strcmp(callee, "fwidth") == 0) { - return NULL; /* FINISHME: implement this */ + return ir_constant::zero(mem_ctx, this->type); } else if (strcmp(callee, "greaterThan") == 0) { return NULL; /* FINISHME: implement this */ } else if (strcmp(callee, "greaterThanEqual") == 0) { |