void r300_translate_vertex_shader(struct r300_context* r300,
struct r300_vertex_shader* vs)
{
struct r300_vertex_program_compiler compiler;
struct tgsi_to_rc ttr;
/* Initialize. */
r300_shader_read_vs_outputs(&vs->info, &vs->outputs);
/* Setup the compiler */
rc_init(&compiler.Base);
compiler.Base.Debug = DBG_ON(r300, DBG_VP);
compiler.code = &vs->code;
compiler.UserData = vs;
if (compiler.Base.Debug) {
debug_printf("r300: Initial vertex program\n");
tgsi_dump(vs->state.tokens, 0);
}
/* Translate TGSI to our internal representation */
ttr.compiler = &compiler.Base;
ttr.info = &vs->info;
ttr.use_half_swizzles = FALSE;
r300_tgsi_to_rc(&ttr, vs->state.tokens);
compiler.RequiredOutputs = ~(~0 << (vs->info.num_outputs+1));
compiler.SetHwInputOutput = &set_vertex_inputs_outputs;
/* Insert the WPOS output. */
r300_insert_wpos(&compiler, &vs->outputs);
r300_shader_vap_output_fmt(vs);
r300_stream_locations_notcl(&vs->outputs, vs->stream_loc_notcl);
/* Invoke the compiler */
r3xx_compile_vertex_program(&compiler);
if (compiler.Base.Error) {
/* XXX We should fallback using Draw. */
fprintf(stderr, "r300 VP: Compiler error\n");
abort();
}
/* And, finally... */
rc_destroy(&compiler.Base);
vs->translated = TRUE;
}
void r300_translate_fragment_shader(struct r300_context* r300,
struct r300_fragment_shader* fs)
{
struct r300_fragment_program_compiler compiler;
struct tgsi_to_rc ttr;
memset(&compiler, 0, sizeof(compiler));
rc_init(&compiler.Base);
compiler.Base.Debug = DBG_ON(r300, DBG_FP);
compiler.code = &fs->code;
compiler.is_r500 = r300_screen(r300->context.screen)->caps->is_r500;
compiler.AllocateHwInputs = &allocate_hardware_inputs;
compiler.UserData = fs;
/* TODO: Program compilation depends on texture compare modes,
* which are sampler state. Therefore, programs need to be recompiled
* depending on this state as in the classic Mesa driver.
*
* This is not yet handled correctly.
*/
find_output_registers(&compiler, fs);
if (compiler.Base.Debug) {
debug_printf("r300: Initial fragment program\n");
tgsi_dump(fs->state.tokens, 0);
}
/* Translate TGSI to our internal representation */
ttr.compiler = &compiler.Base;
ttr.info = &fs->info;
r300_tgsi_to_rc(&ttr, fs->state.tokens);
/* Invoke the compiler */
r3xx_compile_fragment_program(&compiler);
if (compiler.Base.Error) {
/* XXX failover maybe? */
DBG(r300, DBG_FP, "r300: Error compiling fragment program: %s\n",
compiler.Base.ErrorMsg);
}
/* And, finally... */
rc_destroy(&compiler.Base);
fs->translated = TRUE;
}
void r300_translate_vertex_shader(struct r300_context *r300,
struct r300_vertex_shader *vs)
{
struct r300_vertex_program_compiler compiler;
struct tgsi_to_rc ttr;
unsigned i;
/* Setup the compiler */
memset(&compiler, 0, sizeof(compiler));
rc_init(&compiler.Base, NULL);
DBG_ON(r300, DBG_VP) ? compiler.Base.Debug |= RC_DBG_LOG : 0;
DBG_ON(r300, DBG_P_STAT) ? compiler.Base.Debug |= RC_DBG_STATS : 0;
compiler.code = &vs->code;
compiler.UserData = vs;
compiler.Base.is_r500 = r300->screen->caps.is_r500;
compiler.Base.disable_optimizations = DBG_ON(r300, DBG_NO_OPT);
compiler.Base.has_half_swizzles = FALSE;
compiler.Base.has_presub = FALSE;
compiler.Base.has_omod = FALSE;
compiler.Base.max_temp_regs = 32;
compiler.Base.max_constants = 256;
compiler.Base.max_alu_insts = r300->screen->caps.is_r500 ? 1024 : 256;
if (compiler.Base.Debug & RC_DBG_LOG) {
DBG(r300, DBG_VP, "r300: Initial vertex program\n");
tgsi_dump(vs->state.tokens, 0);
}
/* Translate TGSI to our internal representation */
ttr.compiler = &compiler.Base;
ttr.info = &vs->info;
ttr.use_half_swizzles = FALSE;
r300_tgsi_to_rc(&ttr, vs->state.tokens);
if (ttr.error) {
fprintf(stderr, "r300 VP: Cannot translate a shader. "
"Using a dummy shader instead.\n");
r300_dummy_vertex_shader(r300, vs);
return;
}
if (compiler.Base.Program.Constants.Count > 200) {
compiler.Base.remove_unused_constants = TRUE;
}
compiler.RequiredOutputs = ~(~0 << (vs->info.num_outputs + 1));
compiler.SetHwInputOutput = &set_vertex_inputs_outputs;
/* Insert the WPOS output. */
rc_copy_output(&compiler.Base, 0, vs->outputs.wpos);
/* Invoke the compiler */
r3xx_compile_vertex_program(&compiler);
if (compiler.Base.Error) {
fprintf(stderr, "r300 VP: Compiler error:\n%sUsing a dummy shader"
" instead.\n", compiler.Base.ErrorMsg);
if (vs->dummy) {
fprintf(stderr, "r300 VP: Cannot compile the dummy shader! "
"Giving up...\n");
abort();
}
rc_destroy(&compiler.Base);
r300_dummy_vertex_shader(r300, vs);
return;
}
/* Initialize numbers of constants for each type. */
vs->externals_count = 0;
for (i = 0;
i < vs->code.constants.Count &&
vs->code.constants.Constants[i].Type == RC_CONSTANT_EXTERNAL; i++) {
vs->externals_count = i+1;
}
for (; i < vs->code.constants.Count; i++) {
assert(vs->code.constants.Constants[i].Type == RC_CONSTANT_IMMEDIATE);
}
vs->immediates_count = vs->code.constants.Count - vs->externals_count;
/* And, finally... */
rc_destroy(&compiler.Base);
}
static void r300_translate_fragment_shader(
struct r300_context* r300,
struct r300_fragment_shader_code* shader,
const struct tgsi_token *tokens)
{
struct r300_fragment_program_compiler compiler;
struct tgsi_to_rc ttr;
int wpos, face;
unsigned i;
tgsi_scan_shader(tokens, &shader->info);
r300_shader_read_fs_inputs(&shader->info, &shader->inputs);
wpos = shader->inputs.wpos;
face = shader->inputs.face;
/* Setup the compiler. */
memset(&compiler, 0, sizeof(compiler));
rc_init(&compiler.Base);
DBG_ON(r300, DBG_FP) ? compiler.Base.Debug |= RC_DBG_LOG : 0;
DBG_ON(r300, DBG_P_STAT) ? compiler.Base.Debug |= RC_DBG_STATS : 0;
compiler.code = &shader->code;
compiler.state = shader->compare_state;
compiler.Base.is_r500 = r300->screen->caps.is_r500;
compiler.Base.is_r400 = r300->screen->caps.is_r400;
compiler.Base.disable_optimizations = DBG_ON(r300, DBG_NO_OPT);
compiler.Base.has_half_swizzles = TRUE;
compiler.Base.has_presub = TRUE;
compiler.Base.max_temp_regs =
compiler.Base.is_r500 ? 128 : (compiler.Base.is_r400 ? 64 : 32);
compiler.Base.max_constants = compiler.Base.is_r500 ? 256 : 32;
compiler.Base.max_alu_insts =
(compiler.Base.is_r500 || compiler.Base.is_r400) ? 512 : 64;
compiler.Base.max_tex_insts =
(compiler.Base.is_r500 || compiler.Base.is_r400) ? 512 : 32;
compiler.AllocateHwInputs = &allocate_hardware_inputs;
compiler.UserData = &shader->inputs;
find_output_registers(&compiler, shader);
shader->write_all = FALSE;
for (i = 0; i < shader->info.num_properties; i++) {
if (shader->info.properties[i].name == TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS) {
shader->write_all = TRUE;
}
}
if (compiler.Base.Debug & RC_DBG_LOG) {
DBG(r300, DBG_FP, "r300: Initial fragment program\n");
tgsi_dump(tokens, 0);
}
/* Translate TGSI to our internal representation */
ttr.compiler = &compiler.Base;
ttr.info = &shader->info;
ttr.use_half_swizzles = TRUE;
r300_tgsi_to_rc(&ttr, tokens);
if (ttr.error) {
fprintf(stderr, "r300 FP: Cannot translate a shader. "
"Using a dummy shader instead.\n");
r300_dummy_fragment_shader(r300, shader);
return;
}
if (!r300->screen->caps.is_r500 ||
compiler.Base.Program.Constants.Count > 200) {
compiler.Base.remove_unused_constants = TRUE;
}
/**
* Transform the program to support WPOS.
*
* Introduce a small fragment at the start of the program that will be
* the only code that directly reads the WPOS input.
* All other code pieces that reference that input will be rewritten
* to read from a newly allocated temporary. */
if (wpos != ATTR_UNUSED) {
/* Moving the input to some other reg is not really necessary. */
rc_transform_fragment_wpos(&compiler.Base, wpos, wpos, TRUE);
}
if (face != ATTR_UNUSED) {
rc_transform_fragment_face(&compiler.Base, face);
}
/* Invoke the compiler */
r3xx_compile_fragment_program(&compiler);
if (compiler.Base.Error) {
fprintf(stderr, "r300 FP: Compiler Error:\n%sUsing a dummy shader"
" instead.\n", compiler.Base.ErrorMsg);
if (shader->dummy) {
fprintf(stderr, "r300 FP: Cannot compile the dummy shader! "
"Giving up...\n");
abort();
}
rc_destroy(&compiler.Base);
r300_dummy_fragment_shader(r300, shader);
return;
}
/* Shaders with zero instructions are invalid,
* use the dummy shader instead. */
if (shader->code.code.r500.inst_end == -1) {
rc_destroy(&compiler.Base);
r300_dummy_fragment_shader(r300, shader);
return;
}
/* Initialize numbers of constants for each type. */
shader->externals_count = 0;
for (i = 0;
i < shader->code.constants.Count &&
shader->code.constants.Constants[i].Type == RC_CONSTANT_EXTERNAL; i++) {
shader->externals_count = i+1;
}
shader->immediates_count = 0;
shader->rc_state_count = 0;
for (i = shader->externals_count; i < shader->code.constants.Count; i++) {
switch (shader->code.constants.Constants[i].Type) {
case RC_CONSTANT_IMMEDIATE:
++shader->immediates_count;
break;
case RC_CONSTANT_STATE:
++shader->rc_state_count;
break;
default:
assert(0);
}
}
/* Setup shader depth output. */
if (shader->code.writes_depth) {
shader->fg_depth_src = R300_FG_DEPTH_SRC_SHADER;
shader->us_out_w = R300_W_FMT_W24 | R300_W_SRC_US;
} else {
shader->fg_depth_src = R300_FG_DEPTH_SRC_SCAN;
shader->us_out_w = R300_W_FMT_W0 | R300_W_SRC_US;
}
/* And, finally... */
rc_destroy(&compiler.Base);
/* Build the command buffer. */
r300_emit_fs_code_to_buffer(r300, shader);
}
