diff options
| author | Eric Anholt <[email protected]> | 2011-08-09 15:19:26 -0700 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2011-08-16 13:04:43 -0700 |
| commit | aed5e353e95f47773864c6e61c506b9ddad0e2e9 (patch) | |
| tree | 103d1a3dda1d1f602c6bfb6e1912abcec78c0c06 | |
| parent | a55fbbc1a2b579aed1e80036367b521ef6928f66 (diff) | |
i965/vs: Clamp vertex color outputs when required by ARB_color_buffer_float.
Fixes glsl-vs-vertex-color.
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 11 |
1 files changed, 10 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 93252f73285..2a1f003b5ce 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp @@ -1764,7 +1764,16 @@ vec4_visitor::emit_urb_writes() if (attr == VERT_RESULT_PSIZ) continue; - emit(BRW_OPCODE_MOV, brw_message_reg(mrf++), src_reg(output_reg[attr])); + vec4_instruction *inst = emit(BRW_OPCODE_MOV, brw_message_reg(mrf++), + src_reg(output_reg[attr])); + + if ((attr == VERT_RESULT_COL0 || + attr == VERT_RESULT_COL1 || + attr == VERT_RESULT_BFC0 || + attr == VERT_RESULT_BFC1) && + c->key.clamp_vertex_color) { + inst->saturate = true; + } /* If this was MRF 15, we can't fit anything more into this URB * WRITE. Note that base_mrf of 1 means that MRF 15 is an |