diff options
Diffstat (limited to 'src/mesa/shader/slang/slang_assemble_typeinfo.c')
| -rw-r--r-- | src/mesa/shader/slang/slang_assemble_typeinfo.c | 1036 |
1 files changed, 537 insertions, 499 deletions
diff --git a/src/mesa/shader/slang/slang_assemble_typeinfo.c b/src/mesa/shader/slang/slang_assemble_typeinfo.c index 58f4e24f25..265e417dad 100644 --- a/src/mesa/shader/slang/slang_assemble_typeinfo.c +++ b/src/mesa/shader/slang/slang_assemble_typeinfo.c @@ -36,552 +36,590 @@ * slang_type_specifier */ -GLvoid slang_type_specifier_ctr (slang_type_specifier *self) +GLvoid +slang_type_specifier_ctr(slang_type_specifier * self) { - self->type = slang_spec_void; - self->_struct = NULL; - self->_array = NULL; + self->type = slang_spec_void; + self->_struct = NULL; + self->_array = NULL; } -GLvoid slang_type_specifier_dtr (slang_type_specifier *self) +GLvoid +slang_type_specifier_dtr(slang_type_specifier * self) { - if (self->_struct != NULL) - { - slang_struct_destruct (self->_struct); - slang_alloc_free (self->_struct); - } - if (self->_array != NULL) - { - slang_type_specifier_dtr (self->_array); - slang_alloc_free (self->_array); - } + if (self->_struct != NULL) { + slang_struct_destruct(self->_struct); + slang_alloc_free(self->_struct); + } + if (self->_array != NULL) { + slang_type_specifier_dtr(self->_array); + slang_alloc_free(self->_array); + } } -GLboolean slang_type_specifier_copy (slang_type_specifier *x, const slang_type_specifier *y) +GLboolean +slang_type_specifier_copy(slang_type_specifier * x, + const slang_type_specifier * y) { - slang_type_specifier z; - - slang_type_specifier_ctr (&z); - z.type = y->type; - if (z.type == slang_spec_struct) - { - z._struct = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct)); - if (z._struct == NULL) - { - slang_type_specifier_dtr (&z); - return GL_FALSE; - } - if (!slang_struct_construct (z._struct)) - { - slang_alloc_free (z._struct); - slang_type_specifier_dtr (&z); - return GL_FALSE; - } - if (!slang_struct_copy (z._struct, y->_struct)) - { - slang_type_specifier_dtr (&z); - return GL_FALSE; - } - } - else if (z.type == slang_spec_array) - { - z._array = (slang_type_specifier *) slang_alloc_malloc (sizeof (slang_type_specifier)); - if (z._array == NULL) - { - slang_type_specifier_dtr (&z); - return GL_FALSE; - } - slang_type_specifier_ctr (z._array); - if (!slang_type_specifier_copy (z._array, y->_array)) - { - slang_type_specifier_dtr (&z); - return GL_FALSE; - } - } - slang_type_specifier_dtr (x); - *x = z; - return GL_TRUE; + slang_type_specifier z; + + slang_type_specifier_ctr(&z); + z.type = y->type; + if (z.type == slang_spec_struct) { + z._struct = (slang_struct *) slang_alloc_malloc(sizeof(slang_struct)); + if (z._struct == NULL) { + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + if (!slang_struct_construct(z._struct)) { + slang_alloc_free(z._struct); + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + if (!slang_struct_copy(z._struct, y->_struct)) { + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + } + else if (z.type == slang_spec_array) { + z._array = + (slang_type_specifier *) + slang_alloc_malloc(sizeof(slang_type_specifier)); + if (z._array == NULL) { + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + slang_type_specifier_ctr(z._array); + if (!slang_type_specifier_copy(z._array, y->_array)) { + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + } + slang_type_specifier_dtr(x); + *x = z; + return GL_TRUE; } -GLboolean slang_type_specifier_equal (const slang_type_specifier *x, const slang_type_specifier *y) +GLboolean +slang_type_specifier_equal(const slang_type_specifier * x, + const slang_type_specifier * y) { - if (x->type != y->type) - return 0; - if (x->type == slang_spec_struct) - return slang_struct_equal (x->_struct, y->_struct); - if (x->type == slang_spec_array) - return slang_type_specifier_equal (x->_array, y->_array); - return 1; + if (x->type != y->type) + return 0; + if (x->type == slang_spec_struct) + return slang_struct_equal(x->_struct, y->_struct); + if (x->type == slang_spec_array) + return slang_type_specifier_equal(x->_array, y->_array); + return 1; } /* slang_assembly_typeinfo */ -GLboolean slang_assembly_typeinfo_construct (slang_assembly_typeinfo *ti) +GLboolean +slang_assembly_typeinfo_construct(slang_assembly_typeinfo * ti) { - slang_type_specifier_ctr (&ti->spec); - ti->array_len = 0; - return GL_TRUE; + slang_type_specifier_ctr(&ti->spec); + ti->array_len = 0; + return GL_TRUE; } -GLvoid slang_assembly_typeinfo_destruct (slang_assembly_typeinfo *ti) +GLvoid +slang_assembly_typeinfo_destruct(slang_assembly_typeinfo * ti) { - slang_type_specifier_dtr (&ti->spec); + slang_type_specifier_dtr(&ti->spec); } /* _slang_typeof_operation() */ -static GLboolean typeof_existing_function (const char *name, slang_operation *params, - GLuint num_params, slang_assembly_name_space *space, slang_type_specifier *spec, - slang_atom_pool *atoms) +/** + * Determine the return type of a function. + * \param name name of the function + * \param params array of function parameters + * \param num_params number of parameters + * \param space namespace to use + * \param spec returns the function's type + * \param atoms atom pool + * \return GL_TRUE for success, GL_FALSE if failure + */ +static GLboolean +typeof_existing_function(const char *name, const slang_operation * params, + GLuint num_params, + const slang_assembly_name_space * space, + slang_type_specifier * spec, + slang_atom_pool * atoms) { - slang_atom atom; - GLboolean exists; - - atom = slang_atom_pool_atom (atoms, name); - if (!_slang_typeof_function (atom, params, num_params, space, spec, &exists, atoms)) - return GL_FALSE; - return exists; + slang_atom atom; + GLboolean exists; + + atom = slang_atom_pool_atom(atoms, name); + if (!_slang_typeof_function(atom, params, num_params, space, spec, + &exists, atoms)) + return GL_FALSE; + return exists; } -GLboolean _slang_typeof_operation (slang_assemble_ctx *A, slang_operation *op, - slang_assembly_typeinfo *ti) +GLboolean +_slang_typeof_operation(const slang_assemble_ctx * A, + const slang_operation * op, + slang_assembly_typeinfo * ti) { - return _slang_typeof_operation_ (op, &A->space, ti, A->atoms); + return _slang_typeof_operation_(op, &A->space, ti, A->atoms); } -GLboolean _slang_typeof_operation_ (slang_operation *op, slang_assembly_name_space *space, - slang_assembly_typeinfo *ti, slang_atom_pool *atoms) + +/** + * Determine the return type of an operation. + * \param op the operation node + * \param space the namespace to use + * \param ti the returned type + * \param atoms atom pool + * \return GL_TRUE for success, GL_FALSE if failure + */ +GLboolean +_slang_typeof_operation_(const slang_operation * op, + const slang_assembly_name_space * space, + slang_assembly_typeinfo * ti, + slang_atom_pool * atoms) { - ti->can_be_referenced = GL_FALSE; - ti->is_swizzled = GL_FALSE; - - switch (op->type) - { - case slang_oper_block_no_new_scope: - case slang_oper_block_new_scope: - case slang_oper_variable_decl: - case slang_oper_asm: - case slang_oper_break: - case slang_oper_continue: - case slang_oper_discard: - case slang_oper_return: - case slang_oper_if: - case slang_oper_while: - case slang_oper_do: - case slang_oper_for: - case slang_oper_void: - ti->spec.type = slang_spec_void; - break; - case slang_oper_expression: - case slang_oper_assign: - case slang_oper_addassign: - case slang_oper_subassign: - case slang_oper_mulassign: - case slang_oper_divassign: - case slang_oper_preincrement: - case slang_oper_predecrement: - if (!_slang_typeof_operation_ (op->children, space, ti, atoms)) - return 0; - break; - case slang_oper_literal_bool: - case slang_oper_logicalor: - case slang_oper_logicalxor: - case slang_oper_logicaland: - case slang_oper_equal: - case slang_oper_notequal: - case slang_oper_less: - case slang_oper_greater: - case slang_oper_lessequal: - case slang_oper_greaterequal: - case slang_oper_not: - ti->spec.type = slang_spec_bool; - break; - case slang_oper_literal_int: - ti->spec.type = slang_spec_int; - break; - case slang_oper_literal_float: - ti->spec.type = slang_spec_float; - break; - case slang_oper_identifier: - { - slang_variable *var; - - var = _slang_locate_variable (op->locals, op->a_id, GL_TRUE); - if (var == NULL) - return GL_FALSE; - if (!slang_type_specifier_copy (&ti->spec, &var->type.specifier)) - return GL_FALSE; - ti->can_be_referenced = GL_TRUE; - ti->array_len = var->array_len; - } - break; - case slang_oper_sequence: - /* TODO: check [0] and [1] if they match */ - if (!_slang_typeof_operation_ (&op->children[1], space, ti, atoms)) - return GL_FALSE; - ti->can_be_referenced = GL_FALSE; - ti->is_swizzled = GL_FALSE; - break; - /*case slang_oper_modassign:*/ - /*case slang_oper_lshassign:*/ - /*case slang_oper_rshassign:*/ - /*case slang_oper_orassign:*/ - /*case slang_oper_xorassign:*/ - /*case slang_oper_andassign:*/ - case slang_oper_select: - /* TODO: check [1] and [2] if they match */ - if (!_slang_typeof_operation_ (&op->children[1], space, ti, atoms)) - return GL_FALSE; - ti->can_be_referenced = GL_FALSE; - ti->is_swizzled = GL_FALSE; - break; - /*case slang_oper_bitor:*/ - /*case slang_oper_bitxor:*/ - /*case slang_oper_bitand:*/ - /*case slang_oper_lshift:*/ - /*case slang_oper_rshift:*/ - case slang_oper_add: - if (!typeof_existing_function ("+", op->children, 2, space, &ti->spec, atoms)) - return GL_FALSE; - break; - case slang_oper_subtract: - if (!typeof_existing_function ("-", op->children, 2, space, &ti->spec, atoms)) - return GL_FALSE; - break; - case slang_oper_multiply: - if (!typeof_existing_function ("*", op->children, 2, space, &ti->spec, atoms)) - return GL_FALSE; - break; - case slang_oper_divide: - if (!typeof_existing_function ("/", op->children, 2, space, &ti->spec, atoms)) - return GL_FALSE; - break; - /*case slang_oper_modulus:*/ - case slang_oper_plus: - if (!_slang_typeof_operation_ (op->children, space, ti, atoms)) - return GL_FALSE; - ti->can_be_referenced = GL_FALSE; - ti->is_swizzled = GL_FALSE; - break; - case slang_oper_minus: - if (!typeof_existing_function ("-", op->children, 1, space, &ti->spec, atoms)) - return GL_FALSE; - break; - /*case slang_oper_complement:*/ - case slang_oper_subscript: - { - slang_assembly_typeinfo _ti; - - if (!slang_assembly_typeinfo_construct (&_ti)) - return GL_FALSE; - if (!_slang_typeof_operation_ (op->children, space, &_ti, atoms)) - { - slang_assembly_typeinfo_destruct (&_ti); - return GL_FALSE; - } - ti->can_be_referenced = _ti.can_be_referenced; - if (_ti.spec.type == slang_spec_array) - { - if (!slang_type_specifier_copy (&ti->spec, _ti.spec._array)) - { - slang_assembly_typeinfo_destruct (&_ti); - return GL_FALSE; - } - } - else - { - if (!_slang_type_is_vector (_ti.spec.type) && !_slang_type_is_matrix (_ti.spec.type)) - { - slang_assembly_typeinfo_destruct (&_ti); - return GL_FALSE; - } - ti->spec.type = _slang_type_base (_ti.spec.type); - } - slang_assembly_typeinfo_destruct (&_ti); - } - break; - case slang_oper_call: - { - GLboolean exists; - - if (!_slang_typeof_function (op->a_id, op->children, op->num_children, space, &ti->spec, - &exists, atoms)) - return GL_FALSE; - if (!exists) - { - slang_struct *s = slang_struct_scope_find (space->structs, op->a_id, GL_TRUE); - if (s != NULL) - { - ti->spec.type = slang_spec_struct; - ti->spec._struct = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct)); - if (ti->spec._struct == NULL) - return GL_FALSE; - if (!slang_struct_construct (ti->spec._struct)) - { - slang_alloc_free (ti->spec._struct); - ti->spec._struct = NULL; - return GL_FALSE; - } - if (!slang_struct_copy (ti->spec._struct, s)) - return GL_FALSE; - } - else - { - const char *name; - slang_type_specifier_type type; - - name = slang_atom_pool_id (atoms, op->a_id); - type = slang_type_specifier_type_from_string (name); - if (type == slang_spec_void) - return GL_FALSE; - ti->spec.type = type; - } - } - } - break; - case slang_oper_field: - { - slang_assembly_typeinfo _ti; - - if (!slang_assembly_typeinfo_construct (&_ti)) - return GL_FALSE; - if (!_slang_typeof_operation_ (op->children, space, &_ti, atoms)) - { - slang_assembly_typeinfo_destruct (&_ti); - return GL_FALSE; - } - if (_ti.spec.type == slang_spec_struct) - { - slang_variable *field; - - field = _slang_locate_variable (_ti.spec._struct->fields, op->a_id, GL_FALSE); - if (field == NULL) - { - slang_assembly_typeinfo_destruct (&_ti); - return GL_FALSE; - } - if (!slang_type_specifier_copy (&ti->spec, &field->type.specifier)) - { - slang_assembly_typeinfo_destruct (&_ti); - return GL_FALSE; - } - ti->can_be_referenced = _ti.can_be_referenced; - } - else - { - GLuint rows; - const char *swizzle; - slang_type_specifier_type base; - - /* determine the swizzle of the field expression */ - if (!_slang_type_is_vector (_ti.spec.type)) - { - slang_assembly_typeinfo_destruct (&_ti); - return GL_FALSE; - } - rows = _slang_type_dim (_ti.spec.type); - swizzle = slang_atom_pool_id (atoms, op->a_id); - if (!_slang_is_swizzle (swizzle, rows, &ti->swz)) - { - slang_assembly_typeinfo_destruct (&_ti); - return GL_FALSE; - } - ti->is_swizzled = GL_TRUE; - ti->can_be_referenced = _ti.can_be_referenced && _slang_is_swizzle_mask (&ti->swz, - rows); - if (_ti.is_swizzled) - { - slang_swizzle swz; - - /* swizzle the swizzle */ - _slang_multiply_swizzles (&swz, &_ti.swz, &ti->swz); - ti->swz = swz; - } - base = _slang_type_base (_ti.spec.type); - switch (ti->swz.num_components) - { - case 1: - ti->spec.type = base; - break; - case 2: - switch (base) - { - case slang_spec_float: - ti->spec.type = slang_spec_vec2; - break; - case slang_spec_int: - ti->spec.type = slang_spec_ivec2; - break; - case slang_spec_bool: - ti->spec.type = slang_spec_bvec2; - break; - default: - break; - } - break; - case 3: - switch (base) - { - case slang_spec_float: - ti->spec.type = slang_spec_vec3; - break; - case slang_spec_int: - ti->spec.type = slang_spec_ivec3; - break; - case slang_spec_bool: - ti->spec.type = slang_spec_bvec3; - break; - default: - break; - } - break; - case 4: - switch (base) - { - case slang_spec_float: - ti->spec.type = slang_spec_vec4; - break; - case slang_spec_int: - ti->spec.type = slang_spec_ivec4; - break; - case slang_spec_bool: - ti->spec.type = slang_spec_bvec4; - break; - default: - break; - } - break; - default: - break; - } - } - slang_assembly_typeinfo_destruct (&_ti); - } - break; - case slang_oper_postincrement: - case slang_oper_postdecrement: - if (!_slang_typeof_operation_ (op->children, space, ti, atoms)) - return GL_FALSE; - ti->can_be_referenced = GL_FALSE; - ti->is_swizzled = GL_FALSE; - break; - default: - return GL_FALSE; - } - - return GL_TRUE; + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + + switch (op->type) { + case slang_oper_block_no_new_scope: + case slang_oper_block_new_scope: + case slang_oper_variable_decl: + case slang_oper_asm: + case slang_oper_break: + case slang_oper_continue: + case slang_oper_discard: + case slang_oper_return: + case slang_oper_if: + case slang_oper_while: + case slang_oper_do: + case slang_oper_for: + case slang_oper_void: + ti->spec.type = slang_spec_void; + break; + case slang_oper_expression: + case slang_oper_assign: + case slang_oper_addassign: + case slang_oper_subassign: + case slang_oper_mulassign: + case slang_oper_divassign: + case slang_oper_preincrement: + case slang_oper_predecrement: + if (!_slang_typeof_operation_(op->children, space, ti, atoms)) + return 0; + break; + case slang_oper_literal_bool: + case slang_oper_logicalor: + case slang_oper_logicalxor: + case slang_oper_logicaland: + case slang_oper_equal: + case slang_oper_notequal: + case slang_oper_less: + case slang_oper_greater: + case slang_oper_lessequal: + case slang_oper_greaterequal: + case slang_oper_not: + ti->spec.type = slang_spec_bool; + break; + case slang_oper_literal_int: + ti->spec.type = slang_spec_int; + break; + case slang_oper_literal_float: + ti->spec.type = slang_spec_float; + break; + case slang_oper_identifier: + { + slang_variable *var; + + var = _slang_locate_variable(op->locals, op->a_id, GL_TRUE); + if (var == NULL) + return GL_FALSE; + if (!slang_type_specifier_copy(&ti->spec, &var->type.specifier)) + return GL_FALSE; + ti->can_be_referenced = GL_TRUE; + ti->array_len = var->array_len; + } + break; + case slang_oper_sequence: + /* TODO: check [0] and [1] if they match */ + if (!_slang_typeof_operation_(&op->children[1], space, ti, atoms)) + return GL_FALSE; + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + break; + /*case slang_oper_modassign: */ + /*case slang_oper_lshassign: */ + /*case slang_oper_rshassign: */ + /*case slang_oper_orassign: */ + /*case slang_oper_xorassign: */ + /*case slang_oper_andassign: */ + case slang_oper_select: + /* TODO: check [1] and [2] if they match */ + if (!_slang_typeof_operation_(&op->children[1], space, ti, atoms)) + return GL_FALSE; + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + break; + /*case slang_oper_bitor: */ + /*case slang_oper_bitxor: */ + /*case slang_oper_bitand: */ + /*case slang_oper_lshift: */ + /*case slang_oper_rshift: */ + case slang_oper_add: + if (!typeof_existing_function("+", op->children, 2, space, + &ti->spec, atoms)) + return GL_FALSE; + break; + case slang_oper_subtract: + if (!typeof_existing_function("-", op->children, 2, space, + &ti->spec, atoms)) + return GL_FALSE; + break; + case slang_oper_multiply: + if (!typeof_existing_function("*", op->children, 2, space, + &ti->spec, atoms)) + return GL_FALSE; + break; + case slang_oper_divide: + if (!typeof_existing_function("/", op->children, 2, space, + &ti->spec, atoms)) + return GL_FALSE; + break; + /*case slang_oper_modulus: */ + case slang_oper_plus: + if (!_slang_typeof_operation_(op->children, space, ti, atoms)) + return GL_FALSE; + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + break; + case slang_oper_minus: + if (!typeof_existing_function + ("-", op->children, 1, space, &ti->spec, atoms)) + return GL_FALSE; + break; + /*case slang_oper_complement: */ + case slang_oper_subscript: + { + slang_assembly_typeinfo _ti; + + if (!slang_assembly_typeinfo_construct(&_ti)) + return GL_FALSE; + if (!_slang_typeof_operation_(op->children, space, &_ti, atoms)) { + slang_assembly_typeinfo_destruct(&_ti); + return GL_FALSE; + } + ti->can_be_referenced = _ti.can_be_referenced; + if (_ti.spec.type == slang_spec_array) { + if (!slang_type_specifier_copy(&ti->spec, _ti.spec._array)) { + slang_assembly_typeinfo_destruct(&_ti); + return GL_FALSE; + } + } + else { + if (!_slang_type_is_vector(_ti.spec.type) + && !_slang_type_is_matrix(_ti.spec.type)) { + slang_assembly_typeinfo_destruct(&_ti); + return GL_FALSE; + } + ti->spec.type = _slang_type_base(_ti.spec.type); + } + slang_assembly_typeinfo_destruct(&_ti); + } + break; + case slang_oper_call: + { + GLboolean exists; + + if (!_slang_typeof_function(op->a_id, op->children, op->num_children, + space, &ti->spec, &exists, atoms)) + return GL_FALSE; + if (!exists) { + slang_struct *s = + slang_struct_scope_find(space->structs, op->a_id, GL_TRUE); + if (s != NULL) { + ti->spec.type = slang_spec_struct; + ti->spec._struct = + (slang_struct *) slang_alloc_malloc(sizeof(slang_struct)); + if (ti->spec._struct == NULL) + return GL_FALSE; + if (!slang_struct_construct(ti->spec._struct)) { + slang_alloc_free(ti->spec._struct); + ti->spec._struct = NULL; + return GL_FALSE; + } + if (!slang_struct_copy(ti->spec._struct, s)) + return GL_FALSE; + } + else { + const char *name; + slang_type_specifier_type type; + + name = slang_atom_pool_id(atoms, op->a_id); + type = slang_type_specifier_type_from_string(name); + if (type == slang_spec_void) + return GL_FALSE; + ti->spec.type = type; + } + } + } + break; + case slang_oper_field: + { + slang_assembly_typeinfo _ti; + + if (!slang_assembly_typeinfo_construct(&_ti)) + return GL_FALSE; + if (!_slang_typeof_operation_(op->children, space, &_ti, atoms)) { + slang_assembly_typeinfo_destruct(&_ti); + return GL_FALSE; + } + if (_ti.spec.type == slang_spec_struct) { + slang_variable *field; + + field = + _slang_locate_variable(_ti.spec._struct->fields, op->a_id, + GL_FALSE); + if (field == NULL) { + slang_assembly_typeinfo_destruct(&_ti); + return GL_FALSE; + } + if (!slang_type_specifier_copy(&ti->spec, &field->type.specifier)) { + slang_assembly_typeinfo_destruct(&_ti); + return GL_FALSE; + } + ti->can_be_referenced = _ti.can_be_referenced; + } + else { + GLuint rows; + const char *swizzle; + slang_type_specifier_type base; + + /* determine the swizzle of the field expression */ + if (!_slang_type_is_vector(_ti.spec.type)) { + slang_assembly_typeinfo_destruct(&_ti); + return GL_FALSE; + } + rows = _slang_type_dim(_ti.spec.type); + swizzle = slang_atom_pool_id(atoms, op->a_id); + if (!_slang_is_swizzle(swizzle, rows, &ti->swz)) { + slang_assembly_typeinfo_destruct(&_ti); + return GL_FALSE; + } + ti->is_swizzled = GL_TRUE; + ti->can_be_referenced = _ti.can_be_referenced + && _slang_is_swizzle_mask(&ti->swz, rows); + if (_ti.is_swizzled) { + slang_swizzle swz; + + /* swizzle the swizzle */ + _slang_multiply_swizzles(&swz, &_ti.swz, &ti->swz); + ti->swz = swz; + } + base = _slang_type_base(_ti.spec.type); + switch (ti->swz.num_components) { + case 1: + ti->spec.type = base; + break; + case 2: + switch (base) { + case slang_spec_float: + ti->spec.type = slang_spec_vec2; + break; + case slang_spec_int: + ti->spec.type = slang_spec_ivec2; + break; + case slang_spec_bool: + ti->spec.type = slang_spec_bvec2; + break; + default: + break; + } + break; + case 3: + switch (base) { + case slang_spec_float: + ti->spec.type = slang_spec_vec3; + break; + case slang_spec_int: + ti->spec.type = slang_spec_ivec3; + break; + case slang_spec_bool: + ti->spec.type = slang_spec_bvec3; + break; + default: + break; + } + break; + case 4: + switch (base) { + case slang_spec_float: + ti->spec.type = slang_spec_vec4; + break; + case slang_spec_int: + ti->spec.type = slang_spec_ivec4; + break; + case slang_spec_bool: + ti->spec.type = slang_spec_bvec4; + break; + default: + break; + } + break; + default: + break; + } + } + slang_assembly_typeinfo_destruct(&_ti); + } + break; + case slang_oper_postincrement: + case slang_oper_postdecrement: + if (!_slang_typeof_operation_(op->children, space, ti, atoms)) + return GL_FALSE; + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + break; + default: + return GL_FALSE; + } + + return GL_TRUE; } -/* _slang_typeof_function() */ -GLboolean _slang_typeof_function (slang_atom a_name, slang_operation *params, GLuint num_params, - slang_assembly_name_space *space, slang_type_specifier *spec, GLboolean *exists, - slang_atom_pool *atoms) + +/** + * Determine the return type of a function. + * \param a_name the function name + * \param param function parameters (overloading) + * \param num_params number of parameters to function + * \param space namespace to search + * \param exists returns GL_TRUE or GL_FALSE to indicate existance of function + * \return GL_TRUE for success, GL_FALSE if failure (bad function name) + */ +GLboolean +_slang_typeof_function(slang_atom a_name, const slang_operation * params, + GLuint num_params, + const slang_assembly_name_space * space, + slang_type_specifier * spec, GLboolean * exists, + slang_atom_pool * atoms) { - slang_function *fun; - - fun = _slang_locate_function (space->funcs, a_name, params, num_params, space, atoms); - *exists = fun != NULL; - if (fun == NULL) - return GL_TRUE; - return slang_type_specifier_copy (spec, &fun->header.type.specifier); + slang_function *fun = _slang_locate_function(space->funcs, a_name, params, + num_params, space, atoms); + *exists = fun != NULL; + if (!fun) + return GL_TRUE; /* yes, not false */ + return slang_type_specifier_copy(spec, &fun->header.type.specifier); } -/* _slang_type_is_matrix() */ -GLboolean _slang_type_is_matrix (slang_type_specifier_type ty) + +/** + * Determine if a type is a matrix. + * \return GL_TRUE if is a matrix, GL_FALSE otherwise. + */ +GLboolean +_slang_type_is_matrix(slang_type_specifier_type ty) { - switch (ty) - { - case slang_spec_mat2: - case slang_spec_mat3: - case slang_spec_mat4: - return GL_TRUE; - default: - return GL_FALSE; - } + switch (ty) { + case slang_spec_mat2: + case slang_spec_mat3: + case slang_spec_mat4: + return GL_TRUE; + default: + return GL_FALSE; + } } -/* _slang_type_is_vector() */ -GLboolean _slang_type_is_vector (slang_type_specifier_type ty) +/** + * Determine if a type is a vector. + * \return GL_TRUE if is a vector, GL_FALSE otherwise. + */ +GLboolean +_slang_type_is_vector(slang_type_specifier_type ty) { - switch (ty) - { - case slang_spec_vec2: - case slang_spec_vec3: - case slang_spec_vec4: - case slang_spec_ivec2: - case slang_spec_ivec3: - case slang_spec_ivec4: - case slang_spec_bvec2: - case slang_spec_bvec3: - case slang_spec_bvec4: - return GL_TRUE; - default: - return GL_FALSE; - } + switch (ty) { + case slang_spec_vec2: + case slang_spec_vec3: + case slang_spec_vec4: + case slang_spec_ivec2: + case slang_spec_ivec3: + case slang_spec_ivec4: + case slang_spec_bvec2: + case slang_spec_bvec3: + case slang_spec_bvec4: + return GL_TRUE; + default: + return GL_FALSE; + } } -/* _slang_type_base_of_vector() */ -slang_type_specifier_type _slang_type_base (slang_type_specifier_type ty) +/** + * Given a vector type, return the type of the vector's elements + */ +slang_type_specifier_type +_slang_type_base(slang_type_specifier_type ty) { - switch (ty) - { - case slang_spec_float: - case slang_spec_vec2: - case slang_spec_vec3: - case slang_spec_vec4: - return slang_spec_float; - case slang_spec_int: - case slang_spec_ivec2: - case slang_spec_ivec3: - case slang_spec_ivec4: - return slang_spec_int; - case slang_spec_bool: - case slang_spec_bvec2: - case slang_spec_bvec3: - case slang_spec_bvec4: - return slang_spec_bool; - case slang_spec_mat2: - return slang_spec_vec2; - case slang_spec_mat3: - return slang_spec_vec3; - case slang_spec_mat4: - return slang_spec_vec4; - default: - return slang_spec_void; - } + switch (ty) { + case slang_spec_float: + case slang_spec_vec2: + case slang_spec_vec3: + case slang_spec_vec4: + return slang_spec_float; + case slang_spec_int: + case slang_spec_ivec2: + case slang_spec_ivec3: + case slang_spec_ivec4: + return slang_spec_int; + case slang_spec_bool: + case slang_spec_bvec2: + case slang_spec_bvec3: + case slang_spec_bvec4: + return slang_spec_bool; + case slang_spec_mat2: + return slang_spec_vec2; + case slang_spec_mat3: + return slang_spec_vec3; + case slang_spec_mat4: + return slang_spec_vec4; + default: + return slang_spec_void; + } } -/* _slang_type_dim */ -GLuint _slang_type_dim (slang_type_specifier_type ty) +/** + * Return the dimensionality of a vector or matrix type. + */ +GLuint +_slang_type_dim(slang_type_specifier_type ty) { - switch (ty) - { - case slang_spec_float: - case slang_spec_int: - case slang_spec_bool: - return 1; - case slang_spec_vec2: - case slang_spec_ivec2: - case slang_spec_bvec2: - case slang_spec_mat2: - return 2; - case slang_spec_vec3: - case slang_spec_ivec3: - case slang_spec_bvec3: - case slang_spec_mat3: - return 3; - case slang_spec_vec4: - case slang_spec_ivec4: - case slang_spec_bvec4: - case slang_spec_mat4: - return 4; - default: - return 0; - } + switch (ty) { + case slang_spec_float: + case slang_spec_int: + case slang_spec_bool: + return 1; + case slang_spec_vec2: + case slang_spec_ivec2: + case slang_spec_bvec2: + case slang_spec_mat2: + return 2; + case slang_spec_vec3: + case slang_spec_ivec3: + case slang_spec_bvec3: + case slang_spec_mat3: + return 3; + case slang_spec_vec4: + case slang_spec_ivec4: + case slang_spec_bvec4: + case slang_spec_mat4: + return 4; + default: + return 0; + } } - |