ir_variable *read_declaration(s_expression *);
ir_if *read_if(s_expression *, ir_loop *);
ir_loop *read_loop(s_expression *);
+ ir_call *read_call(s_expression *);
ir_return *read_return(s_expression *);
ir_rvalue *read_rvalue(s_expression *);
ir_assignment *read_assignment(s_expression *);
ir_expression *read_expression(s_expression *);
- ir_call *read_call(s_expression *);
ir_swizzle *read_swizzle(s_expression *);
ir_constant *read_constant(s_expression *);
ir_texture *read_texture(s_expression *);
ir_dereference *read_dereference(s_expression *);
+ ir_dereference_variable *read_var_ref(s_expression *);
};
ir_reader::ir_reader(_mesa_glsl_parse_state *state) : state(state)
void
ir_reader::read(exec_list *instructions, const char *src, bool scan_for_protos)
{
- s_expression *expr = s_expression::read_expression(mem_ctx, src);
+ void *sx_mem_ctx = ralloc_context(NULL);
+ s_expression *expr = s_expression::read_expression(sx_mem_ctx, src);
if (expr == NULL) {
ir_read_error(NULL, "couldn't parse S-Expression.");
return;
}
read_instructions(instructions, expr, NULL);
- ralloc_free(expr);
+ ralloc_free(sx_mem_ctx);
if (debug)
validate_ir_tree(instructions);
inst = read_if(list, loop_ctx);
} else if (strcmp(tag->value(), "loop") == 0) {
inst = read_loop(list);
+ } else if (strcmp(tag->value(), "call") == 0) {
+ inst = read_call(list);
} else if (strcmp(tag->value(), "return") == 0) {
inst = read_return(list);
} else if (strcmp(tag->value(), "function") == 0) {
var->mode = ir_var_out;
} else if (strcmp(qualifier->value(), "inout") == 0) {
var->mode = ir_var_inout;
+ } else if (strcmp(qualifier->value(), "temporary") == 0) {
+ var->mode = ir_var_temporary;
} else if (strcmp(qualifier->value(), "smooth") == 0) {
- var->interpolation = ir_var_smooth;
+ var->interpolation = INTERP_QUALIFIER_SMOOTH;
} else if (strcmp(qualifier->value(), "flat") == 0) {
- var->interpolation = ir_var_flat;
+ var->interpolation = INTERP_QUALIFIER_FLAT;
} else if (strcmp(qualifier->value(), "noperspective") == 0) {
- var->interpolation = ir_var_noperspective;
+ var->interpolation = INTERP_QUALIFIER_NOPERSPECTIVE;
} else {
ir_read_error(expr, "unknown qualifier: %s", qualifier->value());
return NULL;
{
s_expression *s_retval;
- s_pattern pat[] = { "return", s_retval};
- if (!MATCH(expr, pat)) {
- ir_read_error(expr, "expected (return <rvalue>)");
- return NULL;
- }
-
- ir_rvalue *retval = read_rvalue(s_retval);
- if (retval == NULL) {
- ir_read_error(NULL, "when reading return value");
+ s_pattern return_value_pat[] = { "return", s_retval};
+ s_pattern return_void_pat[] = { "return" };
+ if (MATCH(expr, return_value_pat)) {
+ ir_rvalue *retval = read_rvalue(s_retval);
+ if (retval == NULL) {
+ ir_read_error(NULL, "when reading return value");
+ return NULL;
+ }
+ return new(mem_ctx) ir_return(retval);
+ } else if (MATCH(expr, return_void_pat)) {
+ return new(mem_ctx) ir_return;
+ } else {
+ ir_read_error(expr, "expected (return <rvalue>) or (return)");
return NULL;
}
-
- return new(mem_ctx) ir_return(retval);
}
rvalue = read_swizzle(list);
} else if (strcmp(tag->value(), "expression") == 0) {
rvalue = read_expression(list);
- } else if (strcmp(tag->value(), "call") == 0) {
- rvalue = read_call(list);
} else if (strcmp(tag->value(), "constant") == 0) {
rvalue = read_constant(list);
} else {
{
s_symbol *name;
s_list *params;
+ s_list *s_return = NULL;
- s_pattern pat[] = { "call", name, params };
- if (!MATCH(expr, pat)) {
- ir_read_error(expr, "expected (call <name> (<param> ...))");
+ ir_dereference_variable *return_deref = NULL;
+
+ s_pattern void_pat[] = { "call", name, params };
+ s_pattern non_void_pat[] = { "call", name, s_return, params };
+ if (MATCH(expr, non_void_pat)) {
+ return_deref = read_var_ref(s_return);
+ if (return_deref == NULL) {
+ ir_read_error(s_return, "when reading a call's return storage");
+ return NULL;
+ }
+ } else if (!MATCH(expr, void_pat)) {
+ ir_read_error(expr, "expected (call <name> [<deref>] (<param> ...))");
return NULL;
}
return NULL;
}
- return new(mem_ctx) ir_call(callee, ¶meters);
+ if (callee->return_type == glsl_type::void_type && return_deref) {
+ ir_read_error(expr, "call has return value storage but void type");
+ return NULL;
+ } else if (callee->return_type != glsl_type::void_type && !return_deref) {
+ ir_read_error(expr, "call has non-void type but no return value storage");
+ return NULL;
+ }
+
+ return new(mem_ctx) ir_call(callee, return_deref, ¶meters);
}
ir_expression *
return new(mem_ctx) ir_constant(type, &elements);
}
- const glsl_type *const base_type = type->get_base_type();
-
ir_constant_data data = { { 0 } };
// Read in list of values (at most 16).
- int k = 0;
+ unsigned k = 0;
foreach_iter(exec_list_iterator, it, values->subexpressions) {
if (k >= 16) {
ir_read_error(values, "expected at most 16 numbers");
s_expression *expr = (s_expression*) it.get();
- if (base_type->base_type == GLSL_TYPE_FLOAT) {
+ if (type->base_type == GLSL_TYPE_FLOAT) {
s_number *value = SX_AS_NUMBER(expr);
if (value == NULL) {
ir_read_error(values, "expected numbers");
return NULL;
}
- switch (base_type->base_type) {
+ switch (type->base_type) {
case GLSL_TYPE_UINT: {
data.u[k] = value->value();
break;
}
++k;
}
+ if (k != type->components()) {
+ ir_read_error(values, "expected %u constant values, found %u",
+ type->components(), k);
+ return NULL;
+ }
return new(mem_ctx) ir_constant(type, &data);
}
-ir_dereference *
-ir_reader::read_dereference(s_expression *expr)
+ir_dereference_variable *
+ir_reader::read_var_ref(s_expression *expr)
{
s_symbol *s_var;
- s_expression *s_subject;
- s_expression *s_index;
- s_symbol *s_field;
-
s_pattern var_pat[] = { "var_ref", s_var };
- s_pattern array_pat[] = { "array_ref", s_subject, s_index };
- s_pattern record_pat[] = { "record_ref", s_subject, s_field };
if (MATCH(expr, var_pat)) {
ir_variable *var = state->symbols->get_variable(s_var->value());
return NULL;
}
return new(mem_ctx) ir_dereference_variable(var);
+ }
+ return NULL;
+}
+
+ir_dereference *
+ir_reader::read_dereference(s_expression *expr)
+{
+ s_expression *s_subject;
+ s_expression *s_index;
+ s_symbol *s_field;
+
+ s_pattern array_pat[] = { "array_ref", s_subject, s_index };
+ s_pattern record_pat[] = { "record_ref", s_subject, s_field };
+
+ ir_dereference_variable *var_ref = read_var_ref(expr);
+ if (var_ref != NULL) {
+ return var_ref;
} else if (MATCH(expr, array_pat)) {
ir_rvalue *subject = read_rvalue(s_subject);
if (subject == NULL) {
ir_reader::read_texture(s_expression *expr)
{
s_symbol *tag = NULL;
+ s_expression *s_type = NULL;
s_expression *s_sampler = NULL;
s_expression *s_coord = NULL;
s_expression *s_offset = NULL;
ir_texture_opcode op = ir_tex; /* silence warning */
s_pattern tex_pattern[] =
- { "tex", s_sampler, s_coord, s_offset, s_proj, s_shadow };
+ { "tex", s_type, s_sampler, s_coord, s_offset, s_proj, s_shadow };
s_pattern txf_pattern[] =
- { "txf", s_sampler, s_coord, s_offset, s_lod };
+ { "txf", s_type, s_sampler, s_coord, s_offset, s_lod };
+ s_pattern txs_pattern[] =
+ { "txs", s_type, s_sampler, s_lod };
s_pattern other_pattern[] =
- { tag, s_sampler, s_coord, s_offset, s_proj, s_shadow, s_lod };
+ { tag, s_type, s_sampler, s_coord, s_offset, s_proj, s_shadow, s_lod };
if (MATCH(expr, tex_pattern)) {
op = ir_tex;
} else if (MATCH(expr, txf_pattern)) {
op = ir_txf;
+ } else if (MATCH(expr, txs_pattern)) {
+ op = ir_txs;
} else if (MATCH(expr, other_pattern)) {
op = ir_texture::get_opcode(tag->value());
if (op == -1)
ir_texture *tex = new(mem_ctx) ir_texture(op);
- // Read sampler (must be a deref)
- ir_dereference *sampler = read_dereference(s_sampler);
- if (sampler == NULL) {
- ir_read_error(NULL, "when reading sampler in (%s ...)",
+ // Read return type
+ const glsl_type *type = read_type(s_type);
+ if (type == NULL) {
+ ir_read_error(NULL, "when reading type in (%s ...)",
tex->opcode_string());
return NULL;
}
- tex->set_sampler(sampler);
- // Read coordinate (any rvalue)
- tex->coordinate = read_rvalue(s_coord);
- if (tex->coordinate == NULL) {
- ir_read_error(NULL, "when reading coordinate in (%s ...)",
+ // Read sampler (must be a deref)
+ ir_dereference *sampler = read_dereference(s_sampler);
+ if (sampler == NULL) {
+ ir_read_error(NULL, "when reading sampler in (%s ...)",
tex->opcode_string());
return NULL;
}
+ tex->set_sampler(sampler, type);
- // Read texel offset - either 0 or an rvalue.
- s_int *si_offset = SX_AS_INT(s_offset);
- if (si_offset == NULL || si_offset->value() != 0) {
- tex->offset = read_rvalue(s_offset);
- if (tex->offset == NULL) {
- ir_read_error(s_offset, "expected 0 or an expression");
+ if (op != ir_txs) {
+ // Read coordinate (any rvalue)
+ tex->coordinate = read_rvalue(s_coord);
+ if (tex->coordinate == NULL) {
+ ir_read_error(NULL, "when reading coordinate in (%s ...)",
+ tex->opcode_string());
return NULL;
}
+
+ // Read texel offset - either 0 or an rvalue.
+ s_int *si_offset = SX_AS_INT(s_offset);
+ if (si_offset == NULL || si_offset->value() != 0) {
+ tex->offset = read_rvalue(s_offset);
+ if (tex->offset == NULL) {
+ ir_read_error(s_offset, "expected 0 or an expression");
+ return NULL;
+ }
+ }
}
- if (op != ir_txf) {
+ if (op != ir_txf && op != ir_txs) {
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_txl:
case ir_txf:
+ case ir_txs:
tex->lod_info.lod = read_rvalue(s_lod);
if (tex->lod_info.lod == NULL) {
ir_read_error(NULL, "when reading LOD in (%s ...)",
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