diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 109 |
1 files changed, 49 insertions, 60 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index b3da2016d..63b74285a 100644 --- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -1287,11 +1287,12 @@ glsl_to_tgsi_visitor::try_emit_mad_for_and_not(ir_expression *ir, int try_operan bool glsl_to_tgsi_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. + /* Emit saturates in the vertex shader only if SM 3.0 is supported. */ - if (this->prog->Target == GL_VERTEX_PROGRAM_ARB) + if (this->prog->Target == GL_VERTEX_PROGRAM_ARB && + !st_context(this->ctx)->has_shader_model3) { return false; + } ir_rvalue *sat_src = ir->as_rvalue_to_saturate(); if (!sat_src) @@ -2931,32 +2932,12 @@ glsl_to_tgsi_visitor::visit(ir_discard *ir) void glsl_to_tgsi_visitor::visit(ir_if *ir) { - glsl_to_tgsi_instruction *cond_inst, *if_inst; - glsl_to_tgsi_instruction *prev_inst; - - prev_inst = (glsl_to_tgsi_instruction *)this->instructions.get_tail(); + glsl_to_tgsi_instruction *if_inst; ir->condition->accept(this); assert(this->result.file != PROGRAM_UNDEFINED); - if (this->options->EmitCondCodes) { - cond_inst = (glsl_to_tgsi_instruction *)this->instructions.get_tail(); - - /* See if we actually generated any instruction for generating - * the condition. If not, then cook up a move to a temp so we - * have something to set cond_update on. - */ - if (cond_inst == prev_inst) { - st_src_reg temp = get_temp(glsl_type::bool_type); - cond_inst = emit(ir->condition, TGSI_OPCODE_MOV, st_dst_reg(temp), result); - } - cond_inst->cond_update = GL_TRUE; - - if_inst = emit(ir->condition, TGSI_OPCODE_IF); - if_inst->dst.cond_mask = COND_NE; - } else { - if_inst = emit(ir->condition, TGSI_OPCODE_IF, undef_dst, this->result); - } + if_inst = emit(ir->condition, TGSI_OPCODE_IF, undef_dst, this->result); this->instructions.push_tail(if_inst); @@ -5175,21 +5156,52 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog) const struct gl_shader_compiler_options *options = &ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(prog->_LinkedShaders[i]->Type)]; - do { - unsigned what_to_lower = MOD_TO_FRACT | DIV_TO_MUL_RCP | - EXP_TO_EXP2 | LOG_TO_LOG2; - if (options->EmitNoPow) - what_to_lower |= POW_TO_EXP2; - if (!ctx->Const.NativeIntegers) - what_to_lower |= INT_DIV_TO_MUL_RCP; + /* If there are forms of indirect addressing that the driver + * cannot handle, perform the lowering pass. + */ + if (options->EmitNoIndirectInput || options->EmitNoIndirectOutput || + options->EmitNoIndirectTemp || options->EmitNoIndirectUniform) { + lower_variable_index_to_cond_assign(ir, + options->EmitNoIndirectInput, + options->EmitNoIndirectOutput, + options->EmitNoIndirectTemp, + options->EmitNoIndirectUniform); + } - progress = false; + if (ctx->Extensions.ARB_shading_language_packing) { + unsigned lower_inst = LOWER_PACK_SNORM_2x16 | + LOWER_UNPACK_SNORM_2x16 | + LOWER_PACK_UNORM_2x16 | + LOWER_UNPACK_UNORM_2x16 | + LOWER_PACK_SNORM_4x8 | + LOWER_UNPACK_SNORM_4x8 | + LOWER_UNPACK_UNORM_4x8 | + LOWER_PACK_UNORM_4x8 | + LOWER_PACK_HALF_2x16 | + LOWER_UNPACK_HALF_2x16; + + lower_packing_builtins(ir, lower_inst); + } - /* Lowering */ - do_mat_op_to_vec(ir); - lower_instructions(ir, what_to_lower); + do_mat_op_to_vec(ir); + lower_instructions(ir, + MOD_TO_FRACT | + DIV_TO_MUL_RCP | + EXP_TO_EXP2 | + LOG_TO_LOG2 | + (options->EmitNoPow ? POW_TO_EXP2 : 0) | + (!ctx->Const.NativeIntegers ? INT_DIV_TO_MUL_RCP : 0)); + + lower_ubo_reference(prog->_LinkedShaders[i], ir); + do_vec_index_to_cond_assign(ir); + lower_quadop_vector(ir, false); + lower_noise(ir); + if (options->MaxIfDepth == 0) { + lower_discard(ir); + } - lower_ubo_reference(prog->_LinkedShaders[i], ir); + do { + progress = false; progress = do_lower_jumps(ir, true, true, options->EmitNoMainReturn, options->EmitNoCont, options->EmitNoLoops) || progress; @@ -5197,31 +5209,8 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog) options->MaxUnrollIterations) || progress; - progress = lower_quadop_vector(ir, false) || progress; - - if (options->MaxIfDepth == 0) - progress = lower_discard(ir) || progress; - progress = lower_if_to_cond_assign(ir, options->MaxIfDepth) || progress; - if (options->EmitNoNoise) - progress = lower_noise(ir) || progress; - - /* If there are forms of indirect addressing that the driver - * cannot handle, perform the lowering pass. - */ - if (options->EmitNoIndirectInput || options->EmitNoIndirectOutput - || options->EmitNoIndirectTemp || options->EmitNoIndirectUniform) - progress = - lower_variable_index_to_cond_assign(ir, - options->EmitNoIndirectInput, - options->EmitNoIndirectOutput, - options->EmitNoIndirectTemp, - options->EmitNoIndirectUniform) - || progress; - - progress = do_vec_index_to_cond_assign(ir) || progress; - } while (progress); validate_ir_tree(ir); |