static void r300_insert_wpos(struct r300_vertex_program_compiler* c,
struct r300_shader_semantics* outputs)
{
int i, lastOutput = 0;
/* Find the max output index. */
lastOutput = MAX2(lastOutput, outputs->psize);
for (i = 0; i < ATTR_COLOR_COUNT; i++) {
lastOutput = MAX2(lastOutput, outputs->color[i]);
lastOutput = MAX2(lastOutput, outputs->bcolor[i]);
}
for (i = 0; i < ATTR_GENERIC_COUNT; i++) {
lastOutput = MAX2(lastOutput, outputs->generic[i]);
}
lastOutput = MAX2(lastOutput, outputs->fog);
/* Set WPOS after the last output. */
lastOutput++;
rc_copy_output(&c->Base, 0, lastOutput); /* out[lastOutput] = out[0]; */
outputs->wpos = lastOutput;
}
static struct r300_vertex_program *build_program(GLcontext *ctx,
struct r300_vertex_program_key *wanted_key,
const struct gl_vertex_program *mesa_vp)
{
struct r300_vertex_program *vp;
struct r300_vertex_program_compiler compiler;
vp = _mesa_calloc(sizeof(*vp));
vp->Base = (struct gl_vertex_program *) _mesa_clone_program(ctx, &mesa_vp->Base);
_mesa_memcpy(&vp->key, wanted_key, sizeof(vp->key));
rc_init(&compiler.Base);
compiler.Base.Debug = (RADEON_DEBUG & RADEON_VERTS) ? GL_TRUE : GL_FALSE;
compiler.code = &vp->code;
compiler.RequiredOutputs = compute_required_outputs(vp->Base, vp->key.FpReads);
compiler.SetHwInputOutput = &t_inputs_outputs;
if (compiler.Base.Debug) {
fprintf(stderr, "Initial vertex program:\n");
_mesa_print_program(&vp->Base->Base);
fflush(stderr);
}
if (mesa_vp->IsPositionInvariant) {
_mesa_insert_mvp_code(ctx, vp->Base);
}
radeon_mesa_to_rc_program(&compiler.Base, &vp->Base->Base);
if (mesa_vp->IsNVProgram)
initialize_NV_registers(&compiler.Base);
rc_move_output(&compiler.Base, VERT_RESULT_PSIZ, VERT_RESULT_PSIZ, WRITEMASK_X);
if (vp->key.WPosAttr != FRAG_ATTRIB_MAX) {
rc_copy_output(&compiler.Base,
VERT_RESULT_HPOS,
vp->key.WPosAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0);
}
if (vp->key.FogAttr != FRAG_ATTRIB_MAX) {
rc_move_output(&compiler.Base,
VERT_RESULT_FOGC,
vp->key.FogAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0, WRITEMASK_X);
}
r3xx_compile_vertex_program(&compiler);
if (vp->code.constants.Count > ctx->Const.VertexProgram.MaxParameters) {
rc_error(&compiler.Base, "Program exceeds constant buffer size limit\n");
}
vp->error = compiler.Base.Error;
vp->Base->Base.InputsRead = vp->code.InputsRead;
vp->Base->Base.OutputsWritten = vp->code.OutputsWritten;
rc_destroy(&compiler.Base);
return vp;
}
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);
}