AFAICT, all gallium drivers implemente TGSI_OPCODE_LRP.
Tested with softpipe, llvmpipe, svga drivers.
---
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 757bd71..3ef7115 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -1942,6 +1942,9 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
}
break;
}
+ case ir_triop_lrp:
+ emit(ir, TGSI_OPCODE_LRP, result_dst, op[2], op[1], op[0]);
+ break;
case ir_unop_pack_snorm_2x16:
case ir_unop_pack_unorm_2x16:
case ir_unop_pack_half_2x16:
@@ -5189,7 +5192,6 @@ st_link_shader(struct gl_context *ctx, struct
gl_shader_program *prog)
DIV_TO_MUL_RCP |
EXP_TO_EXP2 |
LOG_TO_LOG2 |
- LRP_TO_ARITH |
(options->EmitNoPow ? POW_TO_EXP2 : 0) |
(!ctx->Const.NativeIntegers ? INT_DIV_TO_MUL_RCP :
0));
--
1.7.3.4
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