const static bool debug = false;
+namespace {
+
class ir_reader {
public:
ir_reader(_mesa_glsl_parse_state *);
ir_swizzle *read_swizzle(s_expression *);
ir_constant *read_constant(s_expression *);
ir_texture *read_texture(s_expression *);
+ ir_emit_vertex *read_emit_vertex(s_expression *);
+ ir_end_primitive *read_end_primitive(s_expression *);
ir_dereference *read_dereference(s_expression *);
ir_dereference_variable *read_var_ref(s_expression *);
};
+} /* anonymous namespace */
+
ir_reader::ir_reader(_mesa_glsl_parse_state *state) : state(state)
{
this->mem_ctx = state;
return;
}
- foreach_iter(exec_list_iterator, it, list->subexpressions) {
- s_list *sub = SX_AS_LIST(it.get());
+ foreach_list(n, &list->subexpressions) {
+ s_list *sub = SX_AS_LIST(n);
if (sub == NULL)
continue; // not a (function ...); ignore it.
assert(added);
}
- exec_list_iterator it = ((s_list *) expr)->subexpressions.iterator();
- it.next(); // skip "function" tag
- it.next(); // skip function name
- for (/* nothing */; it.has_next(); it.next()) {
- s_expression *s_sig = (s_expression *) it.get();
+ /* Skip over "function" tag and function name (which are guaranteed to be
+ * present by the above PARTIAL_MATCH call).
+ */
+ exec_node *node = ((s_list *) expr)->subexpressions.head->next->next;
+ for (/* nothing */; !node->is_tail_sentinel(); node = node->next) {
+ s_expression *s_sig = (s_expression *) node;
read_function_sig(f, s_sig, skip_body);
}
return added ? f : NULL;
}
+static bool
+always_available(const _mesa_glsl_parse_state *)
+{
+ return true;
+}
+
void
ir_reader::read_function_sig(ir_function *f, s_expression *expr, bool skip_body)
{
exec_list hir_parameters;
state->symbols->push_scope();
- exec_list_iterator it = paramlist->subexpressions.iterator();
- for (it.next() /* skip "parameters" */; it.has_next(); it.next()) {
- ir_variable *var = read_declaration((s_expression *) it.get());
+ /* Skip over the "parameters" tag. */
+ exec_node *node = paramlist->subexpressions.head->next;
+ for (/* nothing */; !node->is_tail_sentinel(); node = node->next) {
+ ir_variable *var = read_declaration((s_expression *) node);
if (var == NULL)
return;
hir_parameters.push_tail(var);
}
- ir_function_signature *sig = f->exact_matching_signature(&hir_parameters);
+ ir_function_signature *sig =
+ f->exact_matching_signature(state, &hir_parameters);
if (sig == NULL && skip_body) {
/* If scanning for prototypes, generate a new signature. */
- sig = new(mem_ctx) ir_function_signature(return_type);
- sig->is_builtin = true;
+ /* ir_reader doesn't know what languages support a given built-in, so
+ * just say that they're always available. For now, other mechanisms
+ * guarantee the right built-ins are available.
+ */
+ sig = new(mem_ctx) ir_function_signature(return_type, always_available);
f->add_signature(sig);
} else if (sig != NULL) {
const char *badvar = sig->qualifiers_match(&hir_parameters);
return;
}
- foreach_iter(exec_list_iterator, it, list->subexpressions) {
- s_expression *sub = (s_expression*) it.get();
+ foreach_list(n, &list->subexpressions) {
+ s_expression *sub = (s_expression *) n;
ir_instruction *ir = read_instruction(sub, loop_ctx);
if (ir != NULL) {
/* Global variable declarations should be moved to the top, before
inst = read_return(list);
} else if (strcmp(tag->value(), "function") == 0) {
inst = read_function(list, false);
+ } else if (strcmp(tag->value(), "emit-vertex") == 0) {
+ inst = read_emit_vertex(list);
+ } else if (strcmp(tag->value(), "end-primitive") == 0) {
+ inst = read_end_primitive(list);
} else {
inst = read_rvalue(list);
if (inst == NULL)
ir_variable *var = new(mem_ctx) ir_variable(type, s_name->value(),
ir_var_auto);
- foreach_iter(exec_list_iterator, it, s_quals->subexpressions) {
- s_symbol *qualifier = SX_AS_SYMBOL(it.get());
+ foreach_list(n, &s_quals->subexpressions) {
+ s_symbol *qualifier = SX_AS_SYMBOL(n);
if (qualifier == NULL) {
ir_read_error(expr, "qualifier list must contain only symbols");
return NULL;
// FINISHME: Check for duplicate/conflicting qualifiers.
if (strcmp(qualifier->value(), "centroid") == 0) {
- var->centroid = 1;
+ var->data.centroid = 1;
+ } else if (strcmp(qualifier->value(), "sample") == 0) {
+ var->data.sample = 1;
} else if (strcmp(qualifier->value(), "invariant") == 0) {
- var->invariant = 1;
+ var->data.invariant = 1;
} else if (strcmp(qualifier->value(), "uniform") == 0) {
- var->mode = ir_var_uniform;
+ var->data.mode = ir_var_uniform;
} else if (strcmp(qualifier->value(), "auto") == 0) {
- var->mode = ir_var_auto;
+ var->data.mode = ir_var_auto;
} else if (strcmp(qualifier->value(), "in") == 0) {
- var->mode = ir_var_function_in;
+ var->data.mode = ir_var_function_in;
} else if (strcmp(qualifier->value(), "shader_in") == 0) {
- var->mode = ir_var_shader_in;
+ var->data.mode = ir_var_shader_in;
} else if (strcmp(qualifier->value(), "const_in") == 0) {
- var->mode = ir_var_const_in;
+ var->data.mode = ir_var_const_in;
} else if (strcmp(qualifier->value(), "out") == 0) {
- var->mode = ir_var_function_out;
+ var->data.mode = ir_var_function_out;
} else if (strcmp(qualifier->value(), "shader_out") == 0) {
- var->mode = ir_var_shader_out;
+ var->data.mode = ir_var_shader_out;
} else if (strcmp(qualifier->value(), "inout") == 0) {
- var->mode = ir_var_function_inout;
+ var->data.mode = ir_var_function_inout;
} else if (strcmp(qualifier->value(), "temporary") == 0) {
- var->mode = ir_var_temporary;
+ var->data.mode = ir_var_temporary;
} else if (strcmp(qualifier->value(), "smooth") == 0) {
- var->interpolation = INTERP_QUALIFIER_SMOOTH;
+ var->data.interpolation = INTERP_QUALIFIER_SMOOTH;
} else if (strcmp(qualifier->value(), "flat") == 0) {
- var->interpolation = INTERP_QUALIFIER_FLAT;
+ var->data.interpolation = INTERP_QUALIFIER_FLAT;
} else if (strcmp(qualifier->value(), "noperspective") == 0) {
- var->interpolation = INTERP_QUALIFIER_NOPERSPECTIVE;
+ var->data.interpolation = INTERP_QUALIFIER_NOPERSPECTIVE;
} else {
ir_read_error(expr, "unknown qualifier: %s", qualifier->value());
return NULL;
ir_loop *
ir_reader::read_loop(s_expression *expr)
{
- s_expression *s_counter, *s_from, *s_to, *s_inc, *s_body;
+ s_expression *s_body;
- s_pattern pat[] = { "loop", s_counter, s_from, s_to, s_inc, s_body };
- if (!MATCH(expr, pat)) {
- ir_read_error(expr, "expected (loop <counter> <from> <to> "
- "<increment> <body>)");
+ s_pattern loop_pat[] = { "loop", s_body };
+ if (!MATCH(expr, loop_pat)) {
+ ir_read_error(expr, "expected (loop <body>)");
return NULL;
}
- // FINISHME: actually read the count/from/to fields.
-
ir_loop *loop = new(mem_ctx) ir_loop;
+
read_instructions(&loop->body_instructions, s_body, loop);
if (state->error) {
delete loop;
exec_list parameters;
- foreach_iter(exec_list_iterator, it, params->subexpressions) {
- s_expression *expr = (s_expression*) it.get();
+ foreach_list(n, ¶ms->subexpressions) {
+ s_expression *expr = (s_expression *) n;
ir_rvalue *param = read_rvalue(expr);
if (param == NULL) {
ir_read_error(expr, "when reading parameter to function call");
return NULL;
}
- ir_function_signature *callee = f->matching_signature(¶meters);
+ ir_function_signature *callee = f->matching_signature(state, ¶meters);
if (callee == NULL) {
ir_read_error(expr, "couldn't find matching signature for function "
"%s", name->value());
if (type->is_array()) {
unsigned elements_supplied = 0;
exec_list elements;
- foreach_iter(exec_list_iterator, it, values->subexpressions) {
- s_expression *elt = (s_expression *) it.get();
+ foreach_list(n, &values->subexpressions) {
+ s_expression *elt = (s_expression *) n;
ir_constant *ir_elt = read_constant(elt);
if (ir_elt == NULL)
return NULL;
// Read in list of values (at most 16).
unsigned k = 0;
- foreach_iter(exec_list_iterator, it, values->subexpressions) {
+ foreach_list(n, &values->subexpressions) {
if (k >= 16) {
ir_read_error(values, "expected at most 16 numbers");
return NULL;
}
- s_expression *expr = (s_expression*) it.get();
+ s_expression *expr = (s_expression *) n;
if (type->base_type == GLSL_TYPE_FLOAT) {
s_number *value = SX_AS_NUMBER(expr);
}
ir_rvalue *idx = read_rvalue(s_index);
- if (subject == NULL) {
+ if (idx == NULL) {
ir_read_error(NULL, "when reading the index of an array_ref");
return NULL;
}
s_list *s_shadow = NULL;
s_expression *s_lod = NULL;
s_expression *s_sample_index = NULL;
+ s_expression *s_component = NULL;
ir_texture_opcode op = ir_tex; /* silence warning */
{ "txf_ms", s_type, s_sampler, s_coord, s_sample_index };
s_pattern txs_pattern[] =
{ "txs", s_type, s_sampler, s_lod };
+ s_pattern tg4_pattern[] =
+ { "tg4", s_type, s_sampler, s_coord, s_offset, s_component };
+ s_pattern query_levels_pattern[] =
+ { "query_levels", s_type, s_sampler };
s_pattern other_pattern[] =
{ tag, s_type, s_sampler, s_coord, s_offset, s_proj, s_shadow, s_lod };
op = ir_txf_ms;
} else if (MATCH(expr, txs_pattern)) {
op = ir_txs;
+ } else if (MATCH(expr, tg4_pattern)) {
+ op = ir_tg4;
+ } else if (MATCH(expr, query_levels_pattern)) {
+ op = ir_query_levels;
} else if (MATCH(expr, other_pattern)) {
op = ir_texture::get_opcode(tag->value());
if (op == -1)
}
}
- if (op != ir_txf && op != ir_txf_ms && op != ir_txs && op != ir_lod) {
+ if (op != ir_txf && op != ir_txf_ms &&
+ op != ir_txs && op != ir_lod && op != ir_tg4 &&
+ op != ir_query_levels) {
s_int *proj_as_int = SX_AS_INT(s_proj);
if (proj_as_int && proj_as_int->value() == 1) {
tex->projector = NULL;
}
break;
}
+ case ir_tg4:
+ tex->lod_info.component = read_rvalue(s_component);
+ if (tex->lod_info.component == NULL) {
+ ir_read_error(NULL, "when reading component in (tg4 ...)");
+ return NULL;
+ }
+ break;
default:
// tex and lod don't have any extra parameters.
break;
};
return tex;
}
+
+ir_emit_vertex *
+ir_reader::read_emit_vertex(s_expression *expr)
+{
+ s_pattern pat[] = { "emit-vertex" };
+
+ if (MATCH(expr, pat)) {
+ return new(mem_ctx) ir_emit_vertex();
+ }
+ ir_read_error(NULL, "when reading emit-vertex");
+ return NULL;
+}
+
+ir_end_primitive *
+ir_reader::read_end_primitive(s_expression *expr)
+{
+ s_pattern pat[] = { "end-primitive" };
+
+ if (MATCH(expr, pat)) {
+ return new(mem_ctx) ir_end_primitive();
+ }
+ ir_read_error(NULL, "when reading end-primitive");
+ return NULL;
+}
projects / mesa.git / blobdiff