diff options
| author | Matt Turner <[email protected]> | 2013-04-28 14:35:01 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2013-04-28 14:38:14 -0700 |
| commit | a8eed0299df3b233a80031ebe86cac785458eade (patch) | |
| tree | 1d05049b46da695886980dbe290be235f8600119 | |
| parent | 3bba7878793b38dbc5075e5f7aa77f8c10a25559 (diff) | |
i965/vs: Fix order of source arguments to LRP.
The order or arguments matches DirectX, and is backwards from GLSL's
mix() built-in.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=63983
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp index 88c435ca292..31da01f143b 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp @@ -1631,7 +1631,10 @@ vec4_visitor::visit(ir_expression *ir) op[0] = fix_3src_operand(op[0]); op[1] = fix_3src_operand(op[1]); op[2] = fix_3src_operand(op[2]); - emit(LRP(result_dst, op[0], op[1], op[2])); + /* Note that the instruction's argument order is reversed from GLSL + * and the IR. + */ + emit(LRP(result_dst, op[2], op[1], op[0])); break; case ir_quadop_vector: |