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st/mesa: fix GLSL mix(.., .., bvecN)

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v2: use CMP on drivers without native integer support
This commit is contained in:
Marek Olšák 2013-09-23 22:43:23 +02:00
parent a64d3dd135
commit 2bda5f3298
1 changed files with 8 additions and 1 deletions
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9
src/mesa/state_tracker/st_glsl_to_tgsi.cpp
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@ -1944,6 +1944,14 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
/* note: we have to reorder the three args here */
emit(ir, TGSI_OPCODE_LRP, result_dst, op[2], op[1], op[0]);
break;
case ir_triop_csel:
if (this->ctx->Const.NativeIntegers)
emit(ir, TGSI_OPCODE_UCMP, result_dst, op[0], op[1], op[2]);
else {
op[0].negate = ~op[0].negate;
emit(ir, TGSI_OPCODE_CMP, result_dst, op[0], op[1], op[2]);
}
break;
case ir_unop_pack_snorm_2x16:
case ir_unop_pack_unorm_2x16:
case ir_unop_pack_half_2x16:
@ -1970,7 +1978,6 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
case ir_binop_vector_extract:
case ir_triop_vector_insert:
case ir_binop_ldexp:
case ir_triop_csel:
/* This operation is not supported, or should have already been handled.
*/
assert(!"Invalid ir opcode in glsl_to_tgsi_visitor::visit()");