diff options
Diffstat (limited to 'src/mesa/shader/slang/slang_codegen.c')
| -rw-r--r-- | src/mesa/shader/slang/slang_codegen.c | 157 |
1 files changed, 144 insertions, 13 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index b7e39e60276..9b4fccf657d 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -1787,7 +1787,7 @@ _slang_make_struct_constructor(slang_assemble_ctx *A, slang_struct *str) printf("Field %d: %s\n", i, (char*) str->fields->variables[i]->a_name); */ slang_variable *p = slang_variable_scope_grow(fun->parameters); - *p = *str->fields->variables[i]; /* copy the type */ + *p = *str->fields->variables[i]; /* copy the variable and type */ p->type.qualifier = SLANG_QUAL_CONST; } fun->param_count = fun->parameters->num_variables; @@ -1930,19 +1930,146 @@ _slang_locate_struct_constructor(slang_assemble_ctx *A, const char *name) static slang_function * _slang_make_array_constructor(slang_assemble_ctx *A, slang_operation *oper) { - slang_function *fun = slang_function_new(SLANG_FUNC_CONSTRUCTOR); - if (fun) { - slang_type_specifier_type baseType = - slang_type_specifier_type_from_string((char *) oper->a_id); + slang_type_specifier_type baseType; + slang_function *fun; + int num_elements; + + fun = slang_function_new(SLANG_FUNC_CONSTRUCTOR); + if (!fun) + return NULL; + baseType = slang_type_specifier_type_from_string((char *) oper->a_id); + + num_elements = oper->num_children; + + /* function header, return type */ + { fun->header.a_name = oper->a_id; fun->header.type.qualifier = SLANG_QUAL_NONE; fun->header.type.specifier.type = SLANG_SPEC_ARRAY; fun->header.type.specifier._array = slang_type_specifier_new(baseType, NULL, NULL); + fun->header.type.array_len = num_elements; + } + + /* function parameters (= number of elements) */ + { + GLint i; + for (i = 0; i < num_elements; i++) { + /* + printf("Field %d: %s\n", i, (char*) str->fields->variables[i]->a_name); + */ + slang_variable *p = slang_variable_scope_grow(fun->parameters); + char name[10]; + snprintf(name, sizeof(name), "p%d", i); + p->a_name = slang_atom_pool_atom(A->atoms, name); + p->type.qualifier = SLANG_QUAL_CONST; + p->type.specifier.type = baseType; + } + fun->param_count = fun->parameters->num_variables; + } + + /* Add __retVal to params */ + { + slang_variable *p = slang_variable_scope_grow(fun->parameters); + slang_atom a_retVal = slang_atom_pool_atom(A->atoms, "__retVal"); + assert(a_retVal); + p->a_name = a_retVal; + p->type = fun->header.type; + p->type.qualifier = SLANG_QUAL_OUT; + p->type.specifier.type = baseType; + fun->param_count++; + } + + /* function body is: + * block: + * declare T; + * T[0] = p0; + * T[1] = p1; + * ... + * T[n] = pn; + * return T; + */ + { + slang_variable_scope *scope; + slang_variable *var; + GLint i; + + fun->body = slang_operation_new(1); + fun->body->type = SLANG_OPER_BLOCK_NEW_SCOPE; + fun->body->num_children = num_elements + 2; + fun->body->children = slang_operation_new(num_elements + 2); + + scope = fun->body->locals; + scope->outer_scope = fun->parameters; + + /* create local var 't' */ + var = slang_variable_scope_grow(scope); + var->a_name = slang_atom_pool_atom(A->atoms, "ttt"); + var->type = fun->header.type;/*XXX copy*/ + + /* declare t */ + { + slang_operation *decl; + + decl = &fun->body->children[0]; + decl->type = SLANG_OPER_VARIABLE_DECL; + decl->locals = _slang_variable_scope_new(scope); + decl->a_id = var->a_name; + } + /* assign params to elements of t */ + for (i = 0; i < num_elements; i++) { + slang_operation *assign = &fun->body->children[1 + i]; + assign->type = SLANG_OPER_ASSIGN; + assign->locals = _slang_variable_scope_new(scope); + assign->num_children = 2; + assign->children = slang_operation_new(2); + + { + slang_operation *lhs = &assign->children[0]; + + lhs->type = SLANG_OPER_SUBSCRIPT; + lhs->locals = _slang_variable_scope_new(scope); + lhs->num_children = 2; + lhs->children = slang_operation_new(2); + + lhs->children[0].type = SLANG_OPER_IDENTIFIER; + lhs->children[0].a_id = var->a_name; + lhs->children[0].locals = _slang_variable_scope_new(scope); + + lhs->children[1].type = SLANG_OPER_LITERAL_INT; + lhs->children[1].literal[0] = (GLfloat) i; + } + + { + slang_operation *rhs = &assign->children[1]; + + rhs->type = SLANG_OPER_IDENTIFIER; + rhs->locals = _slang_variable_scope_new(scope); + rhs->a_id = fun->parameters->variables[i]->a_name; + } + } + + /* return t; */ + { + slang_operation *ret = &fun->body->children[num_elements + 1]; + + ret->type = SLANG_OPER_RETURN; + ret->locals = _slang_variable_scope_new(scope); + ret->num_children = 1; + ret->children = slang_operation_new(1); + ret->children[0].type = SLANG_OPER_IDENTIFIER; + ret->children[0].a_id = var->a_name; + ret->children[0].locals = _slang_variable_scope_new(scope); + } } + + + slang_print_function(fun, 1); + + return fun; } @@ -1979,7 +2106,6 @@ _slang_gen_function_call_name(slang_assemble_ctx *A, const char *name, const GLuint param_count = oper->num_children; slang_atom atom; slang_function *fun; - GLboolean error; slang_ir_node *n; atom = slang_atom_pool_atom(A->atoms, name); @@ -1992,15 +2118,15 @@ _slang_gen_function_call_name(slang_assemble_ctx *A, const char *name, } else { /* Try to find function by name and exact argument type matching */ + GLboolean error = GL_FALSE; fun = _slang_function_locate(A->space.funcs, atom, params, param_count, &A->space, A->atoms, A->log, &error); - } - - if (error) { - slang_info_log_error(A->log, - "Function '%s' not found (check argument types)", - name); - return NULL; + if (error) { + slang_info_log_error(A->log, + "Function '%s' not found (check argument types)", + name); + return NULL; + } } if (!fun) { @@ -2081,6 +2207,11 @@ _slang_gen_function_call_name(slang_assemble_ctx *A, const char *name, /*printf("Alloc storage for function result, size %d \n", size);*/ } + if (oper->array_constructor) { + /* free the temporary array constructor function now */ + slang_function_destruct(fun); + } + return n; } |