diff options
Diffstat (limited to 'mesalib/src/mesa/program/ir_to_mesa.cpp')
| -rw-r--r-- | mesalib/src/mesa/program/ir_to_mesa.cpp | 59 |
1 files changed, 10 insertions, 49 deletions
diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp index e5844c3c4..49e4a7a40 100644 --- a/mesalib/src/mesa/program/ir_to_mesa.cpp +++ b/mesalib/src/mesa/program/ir_to_mesa.cpp @@ -311,7 +311,6 @@ public: int mul_operand); bool try_emit_mad_for_and_not(ir_expression *ir, int mul_operand); - bool try_emit_sat(ir_expression *ir); void emit_swz(ir_expression *ir); @@ -866,50 +865,6 @@ ir_to_mesa_visitor::try_emit_mad_for_and_not(ir_expression *ir, int try_operand) return true; } -bool -ir_to_mesa_visitor::try_emit_sat(ir_expression *ir) -{ - /* Saturates were only introduced to vertex programs in - * NV_vertex_program3, so don't give them to drivers in the VP. - */ - if (this->prog->Target == GL_VERTEX_PROGRAM_ARB) - return false; - - ir_rvalue *sat_src = ir->as_rvalue_to_saturate(); - if (!sat_src) - return false; - - sat_src->accept(this); - src_reg src = this->result; - - /* If we generated an expression instruction into a temporary in - * processing the saturate's operand, apply the saturate to that - * instruction. Otherwise, generate a MOV to do the saturate. - * - * Note that we have to be careful to only do this optimization if - * the instruction in question was what generated src->result. For - * example, ir_dereference_array might generate a MUL instruction - * to create the reladdr, and return us a src reg using that - * reladdr. That MUL result is not the value we're trying to - * saturate. - */ - ir_expression *sat_src_expr = sat_src->as_expression(); - ir_to_mesa_instruction *new_inst; - new_inst = (ir_to_mesa_instruction *)this->instructions.get_tail(); - if (sat_src_expr && (sat_src_expr->operation == ir_binop_mul || - sat_src_expr->operation == ir_binop_add || - sat_src_expr->operation == ir_binop_dot)) { - new_inst->saturate = true; - } else { - this->result = get_temp(ir->type); - ir_to_mesa_instruction *inst; - inst = emit(ir, OPCODE_MOV, dst_reg(this->result), src); - inst->saturate = true; - } - - return true; -} - void ir_to_mesa_visitor::reladdr_to_temp(ir_instruction *ir, src_reg *reg, int *num_reladdr) @@ -1072,9 +1027,6 @@ ir_to_mesa_visitor::visit(ir_expression *ir) return; } - if (try_emit_sat(ir)) - return; - if (ir->operation == ir_quadop_vector) { this->emit_swz(ir); return; @@ -1171,6 +1123,12 @@ ir_to_mesa_visitor::visit(ir_expression *ir) emit(ir, OPCODE_DDY, result_dst, op[0]); break; + case ir_unop_saturate: { + ir_to_mesa_instruction *inst = emit(ir, OPCODE_MOV, + result_dst, op[0]); + inst->saturate = true; + break; + } case ir_unop_noise: { const enum prog_opcode opcode = prog_opcode(OPCODE_NOISE1 @@ -2990,9 +2948,12 @@ _mesa_ir_link_shader(struct gl_context *ctx, struct gl_shader_program *prog) /* Lowering */ do_mat_op_to_vec(ir); + GLenum target = _mesa_shader_stage_to_program(prog->_LinkedShaders[i]->Stage); lower_instructions(ir, (MOD_TO_FRACT | DIV_TO_MUL_RCP | EXP_TO_EXP2 | LOG_TO_LOG2 | INT_DIV_TO_MUL_RCP - | ((options->EmitNoPow) ? POW_TO_EXP2 : 0))); + | ((options->EmitNoPow) ? POW_TO_EXP2 : 0) + | ((target == GL_VERTEX_PROGRAM_ARB) ? SAT_TO_CLAMP + : 0))); progress = do_lower_jumps(ir, true, true, options->EmitNoMainReturn, options->EmitNoCont, options->EmitNoLoops) || progress; |