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-rw-r--r--src/mesa/state_tracker/st_glsl_to_tgsi.cpp21
1 files changed, 19 insertions, 2 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 07f4e84889..a4df4e5fae 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -1891,6 +1891,8 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
case ir_binop_ubo_load: {
ir_constant *uniform_block = ir->operands[0]->as_constant();
+ ir_constant *const_offset_ir = ir->operands[1]->as_constant();
+ unsigned const_offset = const_offset_ir ? const_offset_ir->value.u[0] : 0;
st_src_reg index_reg = get_temp(glsl_type::uint_type);
st_src_reg cbuf;
@@ -1903,13 +1905,28 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
assert(ir->type->is_vector() || ir->type->is_scalar());
- emit(ir, TGSI_OPCODE_USHR, st_dst_reg(index_reg), op[1], st_src_reg_for_int(4));
+ if (const_offset_ir) {
+ index_reg = st_src_reg_for_int(const_offset / 16);
+ } else {
+ emit(ir, TGSI_OPCODE_USHR, st_dst_reg(index_reg), op[1], st_src_reg_for_int(4));
+ }
cbuf.swizzle = swizzle_for_size(ir->type->vector_elements);
+ cbuf.swizzle += MAKE_SWIZZLE4(const_offset % 16 / 4,
+ const_offset % 16 / 4,
+ const_offset % 16 / 4,
+ const_offset % 16 / 4);
+
cbuf.reladdr = ralloc(mem_ctx, st_src_reg);
memcpy(cbuf.reladdr, &index_reg, sizeof(index_reg));
- emit(ir, TGSI_OPCODE_MOV, result_dst, cbuf);
+ if (ir->type->base_type == GLSL_TYPE_BOOL) {
+ emit(ir, TGSI_OPCODE_USNE, result_dst, cbuf, st_src_reg_for_int(0));
+ result_src.negate = 1;
+ emit(ir, TGSI_OPCODE_UCMP, result_dst, result_src, st_src_reg_for_int(~0), st_src_reg_for_int(0));
+ } else {
+ emit(ir, TGSI_OPCODE_MOV, result_dst, cbuf);
+ }
break;
}
case ir_quadop_vector: