diff options
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 62 |
1 files changed, 45 insertions, 17 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 8e91c4b61c7..fd51595b749 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -2288,6 +2288,37 @@ glsl_to_tgsi_visitor::process_move_condition(ir_rvalue *ir) bool switch_order = false; ir_expression *const expr = ir->as_expression(); + + if (native_integers) { + if ((expr != NULL) && (expr->get_num_operands() == 2)) { + enum glsl_base_type type = expr->operands[0]->type->base_type; + if (type == GLSL_TYPE_INT || type == GLSL_TYPE_UINT || + type == GLSL_TYPE_BOOL) { + if (expr->operation == ir_binop_equal) { + if (expr->operands[0]->is_zero()) { + src_ir = expr->operands[1]; + switch_order = true; + } + else if (expr->operands[1]->is_zero()) { + src_ir = expr->operands[0]; + switch_order = true; + } + } + else if (expr->operation == ir_binop_nequal) { + if (expr->operands[0]->is_zero()) { + src_ir = expr->operands[1]; + } + else if (expr->operands[1]->is_zero()) { + src_ir = expr->operands[0]; + } + } + } + } + + src_ir->accept(this); + return switch_order; + } + if ((expr != NULL) && (expr->get_num_operands() == 2)) { bool zero_on_left = false; @@ -2379,7 +2410,7 @@ glsl_to_tgsi_visitor::emit_block_mov(ir_assignment *ir, const struct glsl_type * const struct glsl_type *vec_type; vec_type = glsl_type::get_instance(GLSL_TYPE_FLOAT, - type->vector_elements, 1); + type->vector_elements, 1); for (int i = 0; i < type->matrix_columns; i++) { emit_block_mov(ir, vec_type, l, r); @@ -2447,7 +2478,7 @@ glsl_to_tgsi_visitor::visit(ir_assignment *ir) swizzles[i] = first_enabled_chan; } r.swizzle = MAKE_SWIZZLE4(swizzles[0], swizzles[1], - swizzles[2], swizzles[3]); + swizzles[2], swizzles[3]); } assert(l.file != PROGRAM_UNDEFINED); @@ -2460,24 +2491,21 @@ glsl_to_tgsi_visitor::visit(ir_assignment *ir) for (i = 0; i < type_size(ir->lhs->type); i++) { st_src_reg l_src = st_src_reg(l); st_src_reg condition_temp = condition; + st_src_reg op1, op2; l_src.swizzle = swizzle_for_size(ir->lhs->type->vector_elements); - + + op1 = r; + op2 = l_src; + if (switch_order) { + op1 = l_src; + op2 = r; + } + if (native_integers) { - /* This is necessary because TGSI's CMP instruction expects the - * condition to be a float, and we store booleans as integers. - * TODO: really want to avoid i2f path and use UCMP. Requires - * changes to process_move_condition though too. - */ - condition_temp = get_temp(glsl_type::vec4_type); - condition.negate = 0; - emit(ir, TGSI_OPCODE_I2F, st_dst_reg(condition_temp), condition); - condition_temp.swizzle = condition.swizzle; + emit(ir, TGSI_OPCODE_UCMP, l, condition_temp, op1, op2); } - - if (switch_order) { - emit(ir, TGSI_OPCODE_CMP, l, condition_temp, l_src, r); - } else { - emit(ir, TGSI_OPCODE_CMP, l, condition_temp, r, l_src); + else { + emit(ir, TGSI_OPCODE_CMP, l, condition_temp, op1, op2); } l.index++; |