#include "slang_storage.h"
/*
- * This is a straightforward implementation of the slang front-end compiler.
- * Lots of error-checking functionality is missing but every well-formed shader source should
- * compile successfully and execute as expected. However, some semantically ill-formed shaders
+ * This is a straightforward implementation of the slang front-end
+ * compiler. Lots of error-checking functionality is missing but
+ * every well-formed shader source should compile successfully and
+ * execute as expected. However, some semantically ill-formed shaders
* may be accepted resulting in undefined behaviour.
*/
/* slang_var_pool */
-static GLuint slang_var_pool_alloc (slang_var_pool *pool, unsigned int size)
+static GLuint
+slang_var_pool_alloc(slang_var_pool * pool, unsigned int size)
{
- GLuint addr;
+ GLuint addr;
- addr = pool->next_addr;
- pool->next_addr += size;
- return addr;
+ addr = pool->next_addr;
+ pool->next_addr += size;
+ return addr;
}
/*
*/
GLvoid
-_slang_code_unit_ctr (slang_code_unit *self, struct slang_code_object_ *object)
+_slang_code_unit_ctr(slang_code_unit * self,
+ struct slang_code_object_ * object)
{
- _slang_variable_scope_ctr (&self->vars);
- _slang_function_scope_ctr (&self->funs);
- _slang_struct_scope_ctr (&self->structs);
+ _slang_variable_scope_ctr(&self->vars);
+ _slang_function_scope_ctr(&self->funs);
+ _slang_struct_scope_ctr(&self->structs);
self->object = object;
}
GLvoid
-_slang_code_unit_dtr (slang_code_unit *self)
+_slang_code_unit_dtr(slang_code_unit * self)
{
- slang_variable_scope_destruct (&self->vars);
- slang_function_scope_destruct (&self->funs);
- slang_struct_scope_destruct (&self->structs);
+ slang_variable_scope_destruct(&self->vars);
+ slang_function_scope_destruct(&self->funs);
+ slang_struct_scope_destruct(&self->structs);
}
/*
*/
GLvoid
-_slang_code_object_ctr (slang_code_object *self)
+_slang_code_object_ctr(slang_code_object * self)
{
GLuint i;
for (i = 0; i < SLANG_BUILTIN_TOTAL; i++)
- _slang_code_unit_ctr (&self->builtin[i], self);
- _slang_code_unit_ctr (&self->unit, self);
- _slang_assembly_file_ctr (&self->assembly);
- slang_machine_ctr (&self->machine);
+ _slang_code_unit_ctr(&self->builtin[i], self);
+ _slang_code_unit_ctr(&self->unit, self);
+ _slang_assembly_file_ctr(&self->assembly);
+ slang_machine_ctr(&self->machine);
self->varpool.next_addr = 0;
- slang_atom_pool_construct (&self->atompool);
- slang_export_data_table_ctr (&self->expdata);
+ slang_atom_pool_construct(&self->atompool);
+ slang_export_data_table_ctr(&self->expdata);
self->expdata.atoms = &self->atompool;
- slang_export_code_table_ctr (&self->expcode);
+ slang_export_code_table_ctr(&self->expcode);
self->expcode.atoms = &self->atompool;
}
GLvoid
-_slang_code_object_dtr (slang_code_object *self)
+_slang_code_object_dtr(slang_code_object * self)
{
GLuint i;
for (i = 0; i < SLANG_BUILTIN_TOTAL; i++)
- _slang_code_unit_dtr (&self->builtin[i]);
- _slang_code_unit_dtr (&self->unit);
- slang_assembly_file_destruct (&self->assembly);
- slang_machine_dtr (&self->machine);
- slang_atom_pool_destruct (&self->atompool);
- slang_export_data_table_dtr (&self->expdata);
- slang_export_code_table_ctr (&self->expcode);
+ _slang_code_unit_dtr(&self->builtin[i]);
+ _slang_code_unit_dtr(&self->unit);
+ slang_assembly_file_destruct(&self->assembly);
+ slang_machine_dtr(&self->machine);
+ slang_atom_pool_destruct(&self->atompool);
+ slang_export_data_table_dtr(&self->expdata);
+ slang_export_code_table_ctr(&self->expcode);
}
/* slang_info_log */
static char *out_of_memory = "Error: Out of memory.\n";
-void slang_info_log_construct (slang_info_log *log)
+void
+slang_info_log_construct(slang_info_log * log)
{
- log->text = NULL;
- log->dont_free_text = 0;
+ log->text = NULL;
+ log->dont_free_text = 0;
}
-void slang_info_log_destruct (slang_info_log *log)
+void
+slang_info_log_destruct(slang_info_log * log)
{
- if (!log->dont_free_text)
- slang_alloc_free (log->text);
+ if (!log->dont_free_text)
+ slang_alloc_free(log->text);
}
-static int slang_info_log_message (slang_info_log *log, const char *prefix, const char *msg)
+static int
+slang_info_log_message(slang_info_log * log, const char *prefix,
+ const char *msg)
{
GLuint size;
- if (log->dont_free_text)
- return 0;
- size = slang_string_length (msg) + 2;
+ if (log->dont_free_text)
+ return 0;
+ size = slang_string_length(msg) + 2;
if (prefix != NULL)
- size += slang_string_length (prefix) + 2;
+ size += slang_string_length(prefix) + 2;
if (log->text != NULL) {
- GLuint old_len = slang_string_length (log->text);
- log->text = (char *) (slang_alloc_realloc (log->text, old_len + 1, old_len + size));
+ GLuint old_len = slang_string_length(log->text);
+ log->text = (char *)
+ slang_alloc_realloc(log->text, old_len + 1, old_len + size);
}
else {
- log->text = (char *) (slang_alloc_malloc (size));
+ log->text = (char *) (slang_alloc_malloc(size));
if (log->text != NULL)
log->text[0] = '\0';
}
- if (log->text == NULL)
- return 0;
+ if (log->text == NULL)
+ return 0;
if (prefix != NULL) {
- slang_string_concat (log->text, prefix);
- slang_string_concat (log->text, ": ");
+ slang_string_concat(log->text, prefix);
+ slang_string_concat(log->text, ": ");
}
- slang_string_concat (log->text, msg);
- slang_string_concat (log->text, "\n");
- return 1;
+ slang_string_concat(log->text, msg);
+ slang_string_concat(log->text, "\n");
+ return 1;
}
-int slang_info_log_print (slang_info_log *log, const char *msg, ...)
+int
+slang_info_log_print(slang_info_log * log, const char *msg, ...)
{
va_list va;
char buf[1024];
- va_start (va, msg);
- _mesa_vsprintf (buf, msg, va);
- va_end (va);
- return slang_info_log_message (log, NULL, buf);
+ va_start(va, msg);
+ _mesa_vsprintf(buf, msg, va);
+ va_end(va);
+ return slang_info_log_message(log, NULL, buf);
}
-int slang_info_log_error (slang_info_log *log, const char *msg, ...)
+int
+slang_info_log_error(slang_info_log * log, const char *msg, ...)
{
- va_list va;
- char buf[1024];
-
- va_start (va, msg);
- _mesa_vsprintf (buf, msg, va);
- va_end (va);
- if (slang_info_log_message (log, "Error", buf))
- return 1;
- slang_info_log_memory (log);
- return 0;
+ va_list va;
+ char buf[1024];
+
+ va_start(va, msg);
+ _mesa_vsprintf(buf, msg, va);
+ va_end(va);
+ if (slang_info_log_message(log, "Error", buf))
+ return 1;
+ slang_info_log_memory(log);
+ return 0;
}
-int slang_info_log_warning (slang_info_log *log, const char *msg, ...)
+int
+slang_info_log_warning(slang_info_log * log, const char *msg, ...)
{
- va_list va;
- char buf[1024];
-
- va_start (va, msg);
- _mesa_vsprintf (buf, msg, va);
- va_end (va);
- if (slang_info_log_message (log, "Warning", buf))
- return 1;
- slang_info_log_memory (log);
- return 0;
+ va_list va;
+ char buf[1024];
+
+ va_start(va, msg);
+ _mesa_vsprintf(buf, msg, va);
+ va_end(va);
+ if (slang_info_log_message(log, "Warning", buf))
+ return 1;
+ slang_info_log_memory(log);
+ return 0;
}
-void slang_info_log_memory (slang_info_log *log)
+void
+slang_info_log_memory(slang_info_log * log)
{
- if (!slang_info_log_message (log, "Error", "Out of memory."))
- {
- log->dont_free_text = 1;
- log->text = out_of_memory;
- }
+ if (!slang_info_log_message(log, "Error", "Out of memory.")) {
+ log->dont_free_text = 1;
+ log->text = out_of_memory;
+ }
}
/* slang_parse_ctx */
typedef struct slang_parse_ctx_
{
- const byte *I;
- slang_info_log *L;
- int parsing_builtin;
- int global_scope;
- slang_atom_pool *atoms;
+ const byte *I;
+ slang_info_log *L;
+ int parsing_builtin;
+ GLboolean global_scope; /**< Is object being declared a global? */
+ slang_atom_pool *atoms;
} slang_parse_ctx;
/* slang_output_ctx */
typedef struct slang_output_ctx_
{
- slang_variable_scope *vars;
- slang_function_scope *funs;
- slang_struct_scope *structs;
- slang_assembly_file *assembly;
- slang_var_pool *global_pool;
- slang_machine *machine;
+ slang_variable_scope *vars;
+ slang_function_scope *funs;
+ slang_struct_scope *structs;
+ slang_assembly_file *assembly;
+ slang_var_pool *global_pool;
+ slang_machine *machine;
} slang_output_ctx;
/* _slang_compile() */
-static void parse_identifier_str (slang_parse_ctx *C, char **id)
+static void
+parse_identifier_str(slang_parse_ctx * C, char **id)
{
- *id = (char *) C->I;
- C->I += _mesa_strlen (*id) + 1;
+ *id = (char *) C->I;
+ C->I += _mesa_strlen(*id) + 1;
}
-static slang_atom parse_identifier (slang_parse_ctx *C)
+static slang_atom
+parse_identifier(slang_parse_ctx * C)
{
- const char *id;
-
- id = (const char *) C->I;
- C->I += _mesa_strlen (id) + 1;
- return slang_atom_pool_atom (C->atoms, id);
+ const char *id;
+
+ id = (const char *) C->I;
+ C->I += _mesa_strlen(id) + 1;
+ return slang_atom_pool_atom(C->atoms, id);
}
-static int parse_number (slang_parse_ctx *C, int *number)
+static int
+parse_number(slang_parse_ctx * C, int *number)
{
- const int radix = (int) (*C->I++);
- *number = 0;
- while (*C->I != '\0')
- {
- int digit;
- if (*C->I >= '0' && *C->I <= '9')
- digit = (int) (*C->I - '0');
- else if (*C->I >= 'A' && *C->I <= 'Z')
- digit = (int) (*C->I - 'A') + 10;
- else
- digit = (int) (*C->I - 'a') + 10;
- *number = *number * radix + digit;
- C->I++;
- }
- C->I++;
- if (*number > 65535)
- slang_info_log_warning (C->L, "%d: literal integer overflow.", *number);
- return 1;
+ const int radix = (int) (*C->I++);
+ *number = 0;
+ while (*C->I != '\0') {
+ int digit;
+ if (*C->I >= '0' && *C->I <= '9')
+ digit = (int) (*C->I - '0');
+ else if (*C->I >= 'A' && *C->I <= 'Z')
+ digit = (int) (*C->I - 'A') + 10;
+ else
+ digit = (int) (*C->I - 'a') + 10;
+ *number = *number * radix + digit;
+ C->I++;
+ }
+ C->I++;
+ if (*number > 65535)
+ slang_info_log_warning(C->L, "%d: literal integer overflow.", *number);
+ return 1;
}
-static int parse_float (slang_parse_ctx *C, float *number)
+static int
+parse_float(slang_parse_ctx * C, float *number)
{
- char *integral = NULL;
- char *fractional = NULL;
- char *exponent = NULL;
- char *whole = NULL;
-
- parse_identifier_str (C, &integral);
- parse_identifier_str (C, &fractional);
- parse_identifier_str (C, &exponent);
-
- whole = (char *) (slang_alloc_malloc ((_mesa_strlen (integral) + _mesa_strlen (fractional) +
- _mesa_strlen (exponent) + 3) * sizeof (char)));
- if (whole == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
-
- slang_string_copy (whole, integral);
- slang_string_concat (whole, ".");
- slang_string_concat (whole, fractional);
- slang_string_concat (whole, "E");
- slang_string_concat (whole, exponent);
-
- *number = (float) (_mesa_strtod(whole, (char **)NULL));
-
- slang_alloc_free (whole);
- return 1;
+ char *integral = NULL;
+ char *fractional = NULL;
+ char *exponent = NULL;
+ char *whole = NULL;
+
+ parse_identifier_str(C, &integral);
+ parse_identifier_str(C, &fractional);
+ parse_identifier_str(C, &exponent);
+
+ whole = (char *) (slang_alloc_malloc((_mesa_strlen(integral) +
+ _mesa_strlen(fractional) +
+ _mesa_strlen(exponent) + 3) * sizeof(char)));
+ if (whole == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+
+ slang_string_copy(whole, integral);
+ slang_string_concat(whole, ".");
+ slang_string_concat(whole, fractional);
+ slang_string_concat(whole, "E");
+ slang_string_concat(whole, exponent);
+
+ *number = (float) (_mesa_strtod(whole, (char **) NULL));
+
+ slang_alloc_free(whole);
+ return 1;
}
/* revision number - increment after each change affecting emitted output */
#define REVISION 3
-static int check_revision (slang_parse_ctx *C)
+static int
+check_revision(slang_parse_ctx * C)
{
- if (*C->I != REVISION)
- {
- slang_info_log_error (C->L, "Internal compiler error.");
- return 0;
- }
- C->I++;
- return 1;
+ if (*C->I != REVISION) {
+ slang_info_log_error(C->L, "Internal compiler error.");
+ return 0;
+ }
+ C->I++;
+ return 1;
}
-static int parse_statement (slang_parse_ctx *, slang_output_ctx *, slang_operation *);
-static int parse_expression (slang_parse_ctx *, slang_output_ctx *, slang_operation *);
-static int parse_type_specifier (slang_parse_ctx *, slang_output_ctx *, slang_type_specifier *);
+static int parse_statement(slang_parse_ctx *, slang_output_ctx *,
+ slang_operation *);
+static int parse_expression(slang_parse_ctx *, slang_output_ctx *,
+ slang_operation *);
+static int parse_type_specifier(slang_parse_ctx *, slang_output_ctx *,
+ slang_type_specifier *);
-static GLboolean parse_array_len (slang_parse_ctx *C, slang_output_ctx *O, GLuint *len)
+static GLboolean
+parse_array_len(slang_parse_ctx * C, slang_output_ctx * O, GLuint * len)
{
- slang_operation array_size;
- slang_assembly_name_space space;
- GLboolean result;
-
- if (!slang_operation_construct (&array_size))
- return GL_FALSE;
- if (!parse_expression (C, O, &array_size))
- {
- slang_operation_destruct (&array_size);
- return GL_FALSE;
- }
-
- space.funcs = O->funs;
- space.structs = O->structs;
- space.vars = O->vars;
- result = _slang_evaluate_int (O->assembly, O->machine, &space, &array_size, len, C->atoms);
- slang_operation_destruct (&array_size);
- return result;
+ slang_operation array_size;
+ slang_assembly_name_space space;
+ GLboolean result;
+
+ if (!slang_operation_construct(&array_size))
+ return GL_FALSE;
+ if (!parse_expression(C, O, &array_size)) {
+ slang_operation_destruct(&array_size);
+ return GL_FALSE;
+ }
+
+ space.funcs = O->funs;
+ space.structs = O->structs;
+ space.vars = O->vars;
+ result = _slang_evaluate_int(O->assembly, O->machine, &space,
+ &array_size, len, C->atoms);
+ slang_operation_destruct(&array_size);
+ return result;
}
-static GLboolean calculate_var_size (slang_parse_ctx *C, slang_output_ctx *O, slang_variable *var)
+static GLboolean
+calculate_var_size(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_variable * var)
{
- slang_storage_aggregate agg;
-
- if (!slang_storage_aggregate_construct (&agg))
- return GL_FALSE;
- if (!_slang_aggregate_variable (&agg, &var->type.specifier, var->array_len, O->funs, O->structs,
- O->vars, O->machine, O->assembly, C->atoms))
- {
- slang_storage_aggregate_destruct (&agg);
- return GL_FALSE;
- }
- var->size = _slang_sizeof_aggregate (&agg);
- slang_storage_aggregate_destruct (&agg);
- return GL_TRUE;
+ slang_storage_aggregate agg;
+
+ if (!slang_storage_aggregate_construct(&agg))
+ return GL_FALSE;
+ if (!_slang_aggregate_variable(&agg, &var->type.specifier, var->array_len,
+ O->funs, O->structs, O->vars, O->machine,
+ O->assembly, C->atoms)) {
+ slang_storage_aggregate_destruct(&agg);
+ return GL_FALSE;
+ }
+ var->size = _slang_sizeof_aggregate(&agg);
+ slang_storage_aggregate_destruct(&agg);
+ return GL_TRUE;
}
-static GLboolean convert_to_array (slang_parse_ctx *C, slang_variable *var,
- const slang_type_specifier *sp)
+static GLboolean
+convert_to_array(slang_parse_ctx * C, slang_variable * var,
+ const slang_type_specifier * sp)
{
- /* sized array - mark it as array, copy the specifier to the array element and
- * parse the expression */
- var->type.specifier.type = slang_spec_array;
- var->type.specifier._array = (slang_type_specifier *) slang_alloc_malloc (sizeof (
- slang_type_specifier));
- if (var->type.specifier._array == NULL)
- {
- slang_info_log_memory (C->L);
- return GL_FALSE;
- }
- slang_type_specifier_ctr (var->type.specifier._array);
- return slang_type_specifier_copy (var->type.specifier._array, sp);
+ /* sized array - mark it as array, copy the specifier to the array element and
+ * parse the expression */
+ var->type.specifier.type = slang_spec_array;
+ var->type.specifier._array = (slang_type_specifier *)
+ slang_alloc_malloc(sizeof(slang_type_specifier));
+ if (var->type.specifier._array == NULL) {
+ slang_info_log_memory(C->L);
+ return GL_FALSE;
+ }
+ slang_type_specifier_ctr(var->type.specifier._array);
+ return slang_type_specifier_copy(var->type.specifier._array, sp);
}
/* structure field */
#define FIELD_NEXT 1
#define FIELD_ARRAY 2
-static GLboolean parse_struct_field_var (slang_parse_ctx *C, slang_output_ctx *O, slang_variable *var,
- const slang_type_specifier *sp)
+static GLboolean
+parse_struct_field_var(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_variable * var, const slang_type_specifier * sp)
{
- var->a_name = parse_identifier (C);
- if (var->a_name == SLANG_ATOM_NULL)
- return GL_FALSE;
-
- switch (*C->I++)
- {
- case FIELD_NONE:
- if (!slang_type_specifier_copy (&var->type.specifier, sp))
- return GL_FALSE;
- break;
- case FIELD_ARRAY:
- if (!convert_to_array (C, var, sp))
- return GL_FALSE;
- if (!parse_array_len (C, O, &var->array_len))
- return GL_FALSE;
- break;
- default:
- return GL_FALSE;
- }
-
- return calculate_var_size (C, O, var);
+ var->a_name = parse_identifier(C);
+ if (var->a_name == SLANG_ATOM_NULL)
+ return GL_FALSE;
+
+ switch (*C->I++) {
+ case FIELD_NONE:
+ if (!slang_type_specifier_copy(&var->type.specifier, sp))
+ return GL_FALSE;
+ break;
+ case FIELD_ARRAY:
+ if (!convert_to_array(C, var, sp))
+ return GL_FALSE;
+ if (!parse_array_len(C, O, &var->array_len))
+ return GL_FALSE;
+ break;
+ default:
+ return GL_FALSE;
+ }
+
+ return calculate_var_size(C, O, var);
}
-static int parse_struct_field (slang_parse_ctx *C, slang_output_ctx *O, slang_struct *st,
- slang_type_specifier *sp)
+static int
+parse_struct_field(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_struct * st, slang_type_specifier * sp)
{
- slang_output_ctx o = *O;
-
- o.structs = st->structs;
- if (!parse_type_specifier (C, &o, sp))
- return 0;
- do
- {
- slang_variable *var;
-
- st->fields->variables = (slang_variable *) slang_alloc_realloc (st->fields->variables,
- st->fields->num_variables * sizeof (slang_variable),
- (st->fields->num_variables + 1) * sizeof (slang_variable));
- if (st->fields->variables == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- var = &st->fields->variables[st->fields->num_variables];
- if (!slang_variable_construct (var))
- return 0;
- st->fields->num_variables++;
- if (!parse_struct_field_var (C, &o, var, sp))
- return 0;
- }
- while (*C->I++ != FIELD_NONE);
-
- return 1;
+ slang_output_ctx o = *O;
+
+ o.structs = st->structs;
+ if (!parse_type_specifier(C, &o, sp))
+ return 0;
+
+ do {
+ slang_variable *var;
+
+ st->fields->variables =
+ (slang_variable *) slang_alloc_realloc(st->fields->variables,
+ st->fields->num_variables *
+ sizeof(slang_variable),
+ (st->fields->num_variables +
+ 1) * sizeof(slang_variable));
+ if (st->fields->variables == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ var = &st->fields->variables[st->fields->num_variables];
+ if (!slang_variable_construct(var))
+ return 0;
+ st->fields->num_variables++;
+ if (!parse_struct_field_var(C, &o, var, sp))
+ return 0;
+ }
+ while (*C->I++ != FIELD_NONE);
+
+ return 1;
}
-static int parse_struct (slang_parse_ctx *C, slang_output_ctx *O, slang_struct **st)
+static int
+parse_struct(slang_parse_ctx * C, slang_output_ctx * O, slang_struct ** st)
{
- slang_atom a_name;
- const char *name;
-
- /* parse struct name (if any) and make sure it is unique in current scope */
- a_name = parse_identifier (C);
- if (a_name == SLANG_ATOM_NULL)
- return 0;
- name = slang_atom_pool_id (C->atoms, a_name);
- if (name[0] != '\0' && slang_struct_scope_find (O->structs, a_name, 0) != NULL)
- {
- slang_info_log_error (C->L, "%s: duplicate type name.", name);
- return 0;
- }
-
- /* set-up a new struct */
- *st = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct));
- if (*st == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_struct_construct (*st))
- {
- slang_alloc_free (*st);
- *st = NULL;
- slang_info_log_memory (C->L);
- return 0;
- }
- (**st).a_name = a_name;
- (**st).structs->outer_scope = O->structs;
-
- /* parse individual struct fields */
- do
- {
- slang_type_specifier sp;
-
- slang_type_specifier_ctr (&sp);
- if (!parse_struct_field (C, O, *st, &sp))
- {
- slang_type_specifier_dtr (&sp);
- return 0;
- }
- slang_type_specifier_dtr (&sp);
- }
- while (*C->I++ != FIELD_NONE);
-
- /* if named struct, copy it to current scope */
- if (name[0] != '\0')
- {
- slang_struct *s;
-
- O->structs->structs = (slang_struct *) slang_alloc_realloc (O->structs->structs,
- O->structs->num_structs * sizeof (slang_struct),
- (O->structs->num_structs + 1) * sizeof (slang_struct));
- if (O->structs->structs == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- s = &O->structs->structs[O->structs->num_structs];
- if (!slang_struct_construct (s))
- return 0;
- O->structs->num_structs++;
- if (!slang_struct_copy (s, *st))
- return 0;
- }
-
- return 1;
+ slang_atom a_name;
+ const char *name;
+
+ /* parse struct name (if any) and make sure it is unique in current scope */
+ a_name = parse_identifier(C);
+ if (a_name == SLANG_ATOM_NULL)
+ return 0;
+
+ name = slang_atom_pool_id(C->atoms, a_name);
+ if (name[0] != '\0'
+ && slang_struct_scope_find(O->structs, a_name, 0) != NULL) {
+ slang_info_log_error(C->L, "%s: duplicate type name.", name);
+ return 0;
+ }
+
+ /* set-up a new struct */
+ *st = (slang_struct *) slang_alloc_malloc(sizeof(slang_struct));
+ if (*st == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!slang_struct_construct(*st)) {
+ slang_alloc_free(*st);
+ *st = NULL;
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ (**st).a_name = a_name;
+ (**st).structs->outer_scope = O->structs;
+
+ /* parse individual struct fields */
+ do {
+ slang_type_specifier sp;
+
+ slang_type_specifier_ctr(&sp);
+ if (!parse_struct_field(C, O, *st, &sp)) {
+ slang_type_specifier_dtr(&sp);
+ return 0;
+ }
+ slang_type_specifier_dtr(&sp);
+ }
+ while (*C->I++ != FIELD_NONE);
+
+ /* if named struct, copy it to current scope */
+ if (name[0] != '\0') {
+ slang_struct *s;
+
+ O->structs->structs =
+ (slang_struct *) slang_alloc_realloc(O->structs->structs,
+ O->structs->num_structs *
+ sizeof(slang_struct),
+ (O->structs->num_structs +
+ 1) * sizeof(slang_struct));
+ if (O->structs->structs == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ s = &O->structs->structs[O->structs->num_structs];
+ if (!slang_struct_construct(s))
+ return 0;
+ O->structs->num_structs++;
+ if (!slang_struct_copy(s, *st))
+ return 0;
+ }
+
+ return 1;
}
+
/* type qualifier */
#define TYPE_QUALIFIER_NONE 0
#define TYPE_QUALIFIER_CONST 1
#define TYPE_QUALIFIER_FIXEDOUTPUT 5
#define TYPE_QUALIFIER_FIXEDINPUT 6
-static int parse_type_qualifier (slang_parse_ctx *C, slang_type_qualifier *qual)
+static int
+parse_type_qualifier(slang_parse_ctx * C, slang_type_qualifier * qual)
{
- switch (*C->I++)
- {
- case TYPE_QUALIFIER_NONE:
- *qual = slang_qual_none;
- break;
- case TYPE_QUALIFIER_CONST:
- *qual = slang_qual_const;
- break;
- case TYPE_QUALIFIER_ATTRIBUTE:
- *qual = slang_qual_attribute;
- break;
- case TYPE_QUALIFIER_VARYING:
- *qual = slang_qual_varying;
- break;
- case TYPE_QUALIFIER_UNIFORM:
- *qual = slang_qual_uniform;
- break;
- case TYPE_QUALIFIER_FIXEDOUTPUT:
- *qual = slang_qual_fixedoutput;
- break;
- case TYPE_QUALIFIER_FIXEDINPUT:
- *qual = slang_qual_fixedinput;
- break;
- default:
- return 0;
- }
- return 1;
+ switch (*C->I++) {
+ case TYPE_QUALIFIER_NONE:
+ *qual = slang_qual_none;
+ break;
+ case TYPE_QUALIFIER_CONST:
+ *qual = slang_qual_const;
+ break;
+ case TYPE_QUALIFIER_ATTRIBUTE:
+ *qual = slang_qual_attribute;
+ break;
+ case TYPE_QUALIFIER_VARYING:
+ *qual = slang_qual_varying;
+ break;
+ case TYPE_QUALIFIER_UNIFORM:
+ *qual = slang_qual_uniform;
+ break;
+ case TYPE_QUALIFIER_FIXEDOUTPUT:
+ *qual = slang_qual_fixedoutput;
+ break;
+ case TYPE_QUALIFIER_FIXEDINPUT:
+ *qual = slang_qual_fixedinput;
+ break;
+ default:
+ return 0;
+ }
+ return 1;
}
/* type specifier */
#define TYPE_SPECIFIER_STRUCT 22
#define TYPE_SPECIFIER_TYPENAME 23
-static int parse_type_specifier (slang_parse_ctx *C, slang_output_ctx *O, slang_type_specifier *spec)
+static int
+parse_type_specifier(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_type_specifier * spec)
{
- switch (*C->I++)
- {
- case TYPE_SPECIFIER_VOID:
- spec->type = slang_spec_void;
- break;
- case TYPE_SPECIFIER_BOOL:
- spec->type = slang_spec_bool;
- break;
- case TYPE_SPECIFIER_BVEC2:
- spec->type = slang_spec_bvec2;
- break;
- case TYPE_SPECIFIER_BVEC3:
- spec->type = slang_spec_bvec3;
- break;
- case TYPE_SPECIFIER_BVEC4:
- spec->type = slang_spec_bvec4;
- break;
- case TYPE_SPECIFIER_INT:
- spec->type = slang_spec_int;
- break;
- case TYPE_SPECIFIER_IVEC2:
- spec->type = slang_spec_ivec2;
- break;
- case TYPE_SPECIFIER_IVEC3:
- spec->type = slang_spec_ivec3;
- break;
- case TYPE_SPECIFIER_IVEC4:
- spec->type = slang_spec_ivec4;
- break;
- case TYPE_SPECIFIER_FLOAT:
- spec->type = slang_spec_float;
- break;
- case TYPE_SPECIFIER_VEC2:
- spec->type = slang_spec_vec2;
- break;
- case TYPE_SPECIFIER_VEC3:
- spec->type = slang_spec_vec3;
- break;
- case TYPE_SPECIFIER_VEC4:
- spec->type = slang_spec_vec4;
- break;
- case TYPE_SPECIFIER_MAT2:
- spec->type = slang_spec_mat2;
- break;
- case TYPE_SPECIFIER_MAT3:
- spec->type = slang_spec_mat3;
- break;
- case TYPE_SPECIFIER_MAT4:
- spec->type = slang_spec_mat4;
- break;
- case TYPE_SPECIFIER_SAMPLER1D:
- spec->type = slang_spec_sampler1D;
- break;
- case TYPE_SPECIFIER_SAMPLER2D:
- spec->type = slang_spec_sampler2D;
- break;
- case TYPE_SPECIFIER_SAMPLER3D:
- spec->type = slang_spec_sampler3D;
- break;
- case TYPE_SPECIFIER_SAMPLERCUBE:
- spec->type = slang_spec_samplerCube;
- break;
- case TYPE_SPECIFIER_SAMPLER1DSHADOW:
- spec->type = slang_spec_sampler1DShadow;
- break;
- case TYPE_SPECIFIER_SAMPLER2DSHADOW:
- spec->type = slang_spec_sampler2DShadow;
- break;
- case TYPE_SPECIFIER_STRUCT:
- spec->type = slang_spec_struct;
- if (!parse_struct (C, O, &spec->_struct))
- return 0;
- break;
- case TYPE_SPECIFIER_TYPENAME:
- spec->type = slang_spec_struct;
- {
- slang_atom a_name;
- slang_struct *stru;
-
- a_name = parse_identifier (C);
- if (a_name == NULL)
- return 0;
-
- stru = slang_struct_scope_find (O->structs, a_name, 1);
- if (stru == NULL)
- {
- slang_info_log_error (C->L, "%s: undeclared type name.",
- slang_atom_pool_id (C->atoms, a_name));
- return 0;
- }
-
- spec->_struct = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct));
- if (spec->_struct == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_struct_construct (spec->_struct))
- {
- slang_alloc_free (spec->_struct);
- spec->_struct = NULL;
- return 0;
- }
- if (!slang_struct_copy (spec->_struct, stru))
- return 0;
- }
- break;
- default:
- return 0;
- }
- return 1;
+ switch (*C->I++) {
+ case TYPE_SPECIFIER_VOID:
+ spec->type = slang_spec_void;
+ break;
+ case TYPE_SPECIFIER_BOOL:
+ spec->type = slang_spec_bool;
+ break;
+ case TYPE_SPECIFIER_BVEC2:
+ spec->type = slang_spec_bvec2;
+ break;
+ case TYPE_SPECIFIER_BVEC3:
+ spec->type = slang_spec_bvec3;
+ break;
+ case TYPE_SPECIFIER_BVEC4:
+ spec->type = slang_spec_bvec4;
+ break;
+ case TYPE_SPECIFIER_INT:
+ spec->type = slang_spec_int;
+ break;
+ case TYPE_SPECIFIER_IVEC2:
+ spec->type = slang_spec_ivec2;
+ break;
+ case TYPE_SPECIFIER_IVEC3:
+ spec->type = slang_spec_ivec3;
+ break;
+ case TYPE_SPECIFIER_IVEC4:
+ spec->type = slang_spec_ivec4;
+ break;
+ case TYPE_SPECIFIER_FLOAT:
+ spec->type = slang_spec_float;
+ break;
+ case TYPE_SPECIFIER_VEC2:
+ spec->type = slang_spec_vec2;
+ break;
+ case TYPE_SPECIFIER_VEC3:
+ spec->type = slang_spec_vec3;
+ break;
+ case TYPE_SPECIFIER_VEC4:
+ spec->type = slang_spec_vec4;
+ break;
+ case TYPE_SPECIFIER_MAT2:
+ spec->type = slang_spec_mat2;
+ break;
+ case TYPE_SPECIFIER_MAT3:
+ spec->type = slang_spec_mat3;
+ break;
+ case TYPE_SPECIFIER_MAT4:
+ spec->type = slang_spec_mat4;
+ break;
+ case TYPE_SPECIFIER_SAMPLER1D:
+ spec->type = slang_spec_sampler1D;
+ break;
+ case TYPE_SPECIFIER_SAMPLER2D:
+ spec->type = slang_spec_sampler2D;
+ break;
+ case TYPE_SPECIFIER_SAMPLER3D:
+ spec->type = slang_spec_sampler3D;
+ break;
+ case TYPE_SPECIFIER_SAMPLERCUBE:
+ spec->type = slang_spec_samplerCube;
+ break;
+ case TYPE_SPECIFIER_SAMPLER1DSHADOW:
+ spec->type = slang_spec_sampler1DShadow;
+ break;
+ case TYPE_SPECIFIER_SAMPLER2DSHADOW:
+ spec->type = slang_spec_sampler2DShadow;
+ break;
+ case TYPE_SPECIFIER_STRUCT:
+ spec->type = slang_spec_struct;
+ if (!parse_struct(C, O, &spec->_struct))
+ return 0;
+ break;
+ case TYPE_SPECIFIER_TYPENAME:
+ spec->type = slang_spec_struct;
+ {
+ slang_atom a_name;
+ slang_struct *stru;
+
+ a_name = parse_identifier(C);
+ if (a_name == NULL)
+ return 0;
+
+ stru = slang_struct_scope_find(O->structs, a_name, 1);
+ if (stru == NULL) {
+ slang_info_log_error(C->L, "%s: undeclared type name.",
+ slang_atom_pool_id(C->atoms, a_name));
+ return 0;
+ }
+
+ spec->_struct =
+ (slang_struct *) slang_alloc_malloc(sizeof(slang_struct));
+ if (spec->_struct == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!slang_struct_construct(spec->_struct)) {
+ slang_alloc_free(spec->_struct);
+ spec->_struct = NULL;
+ return 0;
+ }
+ if (!slang_struct_copy(spec->_struct, stru))
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+ return 1;
}
-static int parse_fully_specified_type (slang_parse_ctx *C, slang_output_ctx *O,
- slang_fully_specified_type *type)
+static int
+parse_fully_specified_type(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_fully_specified_type * type)
{
- if (!parse_type_qualifier (C, &type->qualifier))
- return 0;
- return parse_type_specifier (C, O, &type->specifier);
+ if (!parse_type_qualifier(C, &type->qualifier))
+ return 0;
+ return parse_type_specifier(C, O, &type->specifier);
}
/* operation */
#define OP_POSTINCREMENT 60
#define OP_POSTDECREMENT 61
-static int parse_child_operation (slang_parse_ctx *C, slang_output_ctx *O, slang_operation *oper,
- int statement)
+
+/**
+ * When parsing a compound production, this function is used to parse the
+ * children.
+ * For example, a a while-loop compound will have two children, the
+ * while condition expression and the loop body. So, this function will
+ * be called twice to parse those two sub-expressions.
+ * \param C the parsing context
+ * \param O the output context
+ * \param oper the operation we're parsing
+ * \param statment which child of the operation is being parsed
+ * \return 1 if success, 0 if error
+ */
+static int
+parse_child_operation(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_operation * oper, unsigned int statement)
{
- slang_operation *ch;
-
- oper->children = (slang_operation *) slang_alloc_realloc (oper->children,
- oper->num_children * sizeof (slang_operation),
- (oper->num_children + 1) * sizeof (slang_operation));
- if (oper->children == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- ch = &oper->children[oper->num_children];
- if (!slang_operation_construct (ch))
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- oper->num_children++;
- if (statement)
- return parse_statement (C, O, ch);
- return parse_expression (C, O, ch);
+ slang_operation *ch;
+
+ /* grow child array */
+ oper->children = (slang_operation *)
+ slang_alloc_realloc(oper->children,
+ oper->num_children * sizeof(slang_operation),
+ (oper->num_children + 1) * sizeof(slang_operation));
+ if (oper->children == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+
+ ch = &oper->children[oper->num_children];
+ if (!slang_operation_construct(ch)) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ oper->num_children++;
+ /* XXX I guess the 0th "statement" is not really a statement? */
+ if (statement)
+ return parse_statement(C, O, ch);
+ return parse_expression(C, O, ch);
}
-static int parse_declaration (slang_parse_ctx *C, slang_output_ctx *O);
+static int parse_declaration(slang_parse_ctx * C, slang_output_ctx * O);
-static int parse_statement (slang_parse_ctx *C, slang_output_ctx *O, slang_operation *oper)
+static int
+parse_statement(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_operation * oper)
{
- oper->locals->outer_scope = O->vars;
- switch (*C->I++)
- {
- case OP_BLOCK_BEGIN_NO_NEW_SCOPE:
- /* parse child statements, do not create new variable scope */
- oper->type = slang_oper_block_no_new_scope;
- while (*C->I != OP_END)
- if (!parse_child_operation (C, O, oper, 1))
- return 0;
- C->I++;
- break;
- case OP_BLOCK_BEGIN_NEW_SCOPE:
- /* parse child statements, create new variable scope */
- {
- slang_output_ctx o = *O;
-
- oper->type = slang_oper_block_new_scope;
- o.vars = oper->locals;
- while (*C->I != OP_END)
- if (!parse_child_operation (C, &o, oper, 1))
- return 0;
- C->I++;
- }
- break;
- case OP_DECLARE:
- /* local variable declaration, individual declarators are stored as children identifiers */
- oper->type = slang_oper_variable_decl;
- {
- const unsigned int first_var = O->vars->num_variables;
-
- /* parse the declaration, note that there can be zero or more than one declarators */
- if (!parse_declaration (C, O))
- return 0;
- if (first_var < O->vars->num_variables)
- {
- const unsigned int num_vars = O->vars->num_variables - first_var;
- unsigned int i;
-
- oper->children = (slang_operation *) slang_alloc_malloc (num_vars * sizeof (
- slang_operation));
- if (oper->children == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- for (oper->num_children = 0; oper->num_children < num_vars; oper->num_children++)
- if (!slang_operation_construct (&oper->children[oper->num_children]))
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- for (i = first_var; i < O->vars->num_variables; i++)
- {
- slang_operation *o = &oper->children[i - first_var];
-
- o->type = slang_oper_identifier;
- o->locals->outer_scope = O->vars;
- o->a_id = O->vars->variables[i].a_name;
- }
- }
- }
- break;
- case OP_ASM:
- /* the __asm statement, parse the mnemonic and all its arguments as expressions */
- oper->type = slang_oper_asm;
- oper->a_id = parse_identifier (C);
- if (oper->a_id == SLANG_ATOM_NULL)
- return 0;
- while (*C->I != OP_END)
- if (!parse_child_operation (C, O, oper, 0))
- return 0;
- C->I++;
- break;
- case OP_BREAK:
- oper->type = slang_oper_break;
- break;
- case OP_CONTINUE:
- oper->type = slang_oper_continue;
- break;
- case OP_DISCARD:
- oper->type = slang_oper_discard;
- break;
- case OP_RETURN:
- oper->type = slang_oper_return;
- if (!parse_child_operation (C, O, oper, 0))
- return 0;
- break;
- case OP_EXPRESSION:
- oper->type = slang_oper_expression;
- if (!parse_child_operation (C, O, oper, 0))
- return 0;
- break;
- case OP_IF:
- oper->type = slang_oper_if;
- if (!parse_child_operation (C, O, oper, 0))
- return 0;
- if (!parse_child_operation (C, O, oper, 1))
- return 0;
- if (!parse_child_operation (C, O, oper, 1))
- return 0;
- break;
- case OP_WHILE:
- {
- slang_output_ctx o = *O;
-
- oper->type = slang_oper_while;
- o.vars = oper->locals;
- if (!parse_child_operation (C, &o, oper, 1))
- return 0;
- if (!parse_child_operation (C, &o, oper, 1))
- return 0;
- }
- break;
- case OP_DO:
- oper->type = slang_oper_do;
- if (!parse_child_operation (C, O, oper, 1))
- return 0;
- if (!parse_child_operation (C, O, oper, 0))
- return 0;
- break;
- case OP_FOR:
- {
- slang_output_ctx o = *O;
-
- oper->type = slang_oper_for;
- o.vars = oper->locals;
- if (!parse_child_operation (C, &o, oper, 1))
- return 0;
- if (!parse_child_operation (C, &o, oper, 1))
- return 0;
- if (!parse_child_operation (C, &o, oper, 0))
- return 0;
- if (!parse_child_operation (C, &o, oper, 1))
- return 0;
- }
- break;
- default:
- return 0;
- }
- return 1;
+ oper->locals->outer_scope = O->vars;
+ switch (*C->I++) {
+ case OP_BLOCK_BEGIN_NO_NEW_SCOPE:
+ /* parse child statements, do not create new variable scope */
+ oper->type = slang_oper_block_no_new_scope;
+ while (*C->I != OP_END)
+ if (!parse_child_operation(C, O, oper, 1))
+ return 0;
+ C->I++;
+ break;
+ case OP_BLOCK_BEGIN_NEW_SCOPE:
+ /* parse child statements, create new variable scope */
+ {
+ slang_output_ctx o = *O;
+
+ oper->type = slang_oper_block_new_scope;
+ o.vars = oper->locals;
+ while (*C->I != OP_END)
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ C->I++;
+ }
+ break;
+ case OP_DECLARE:
+ /* local variable declaration, individual declarators are stored as
+ * children identifiers
+ */
+ oper->type = slang_oper_variable_decl;
+ {
+ const unsigned int first_var = O->vars->num_variables;
+
+ /* parse the declaration, note that there can be zero or more
+ * than one declarators
+ */
+ if (!parse_declaration(C, O))
+ return 0;
+ if (first_var < O->vars->num_variables) {
+ const unsigned int num_vars = O->vars->num_variables - first_var;
+ unsigned int i;
+
+ oper->children = (slang_operation *)
+ slang_alloc_malloc(num_vars * sizeof(slang_operation));
+ if (oper->children == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ for (oper->num_children = 0; oper->num_children < num_vars;
+ oper->num_children++) {
+ if (!slang_operation_construct
+ (&oper->children[oper->num_children])) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ }
+ for (i = first_var; i < O->vars->num_variables; i++) {
+ slang_operation *o = &oper->children[i - first_var];
+ o->type = slang_oper_identifier;
+ o->locals->outer_scope = O->vars;
+ o->a_id = O->vars->variables[i].a_name;
+ }
+ }
+ }
+ break;
+ case OP_ASM:
+ /* the __asm statement, parse the mnemonic and all its arguments
+ * as expressions
+ */
+ oper->type = slang_oper_asm;
+ oper->a_id = parse_identifier(C);
+ if (oper->a_id == SLANG_ATOM_NULL)
+ return 0;
+ while (*C->I != OP_END) {
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ }
+ C->I++;
+ break;
+ case OP_BREAK:
+ oper->type = slang_oper_break;
+ break;
+ case OP_CONTINUE:
+ oper->type = slang_oper_continue;
+ break;
+ case OP_DISCARD:
+ oper->type = slang_oper_discard;
+ break;
+ case OP_RETURN:
+ oper->type = slang_oper_return;
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ break;
+ case OP_EXPRESSION:
+ oper->type = slang_oper_expression;
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ break;
+ case OP_IF:
+ oper->type = slang_oper_if;
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ if (!parse_child_operation(C, O, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, O, oper, 1))
+ return 0;
+ break;
+ case OP_WHILE:
+ {
+ slang_output_ctx o = *O;
+
+ oper->type = slang_oper_while;
+ o.vars = oper->locals;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ }
+ break;
+ case OP_DO:
+ oper->type = slang_oper_do;
+ if (!parse_child_operation(C, O, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, O, oper, 0))
+ return 0;
+ break;
+ case OP_FOR:
+ {
+ slang_output_ctx o = *O;
+
+ oper->type = slang_oper_for;
+ o.vars = oper->locals;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ if (!parse_child_operation(C, &o, oper, 0))
+ return 0;
+ if (!parse_child_operation(C, &o, oper, 1))
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+ return 1;
}
-static int handle_nary_expression (slang_parse_ctx *C, slang_operation *op, slang_operation **ops,
- unsigned int *total_ops, unsigned int n)
+static int
+handle_nary_expression(slang_parse_ctx * C, slang_operation * op,
+ slang_operation ** ops, unsigned int *total_ops,
+ unsigned int n)
{
- unsigned int i;
-
- op->children = (slang_operation *) slang_alloc_malloc (n * sizeof (slang_operation));
- if (op->children == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- op->num_children = n;
-
- for (i = 0; i < n; i++)
- op->children[i] = (*ops)[*total_ops - (n + 1 - i)];
- (*ops)[*total_ops - (n + 1)] = (*ops)[*total_ops - 1];
- *total_ops -= n;
-
- *ops = (slang_operation *) slang_alloc_realloc (*ops, (*total_ops + n) * sizeof (slang_operation),
- *total_ops * sizeof (slang_operation));
- if (*ops == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- return 1;
+ unsigned int i;
+
+ op->children =
+ (slang_operation *) slang_alloc_malloc(n * sizeof(slang_operation));
+ if (op->children == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ op->num_children = n;
+
+ for (i = 0; i < n; i++)
+ op->children[i] = (*ops)[*total_ops - (n + 1 - i)];
+ (*ops)[*total_ops - (n + 1)] = (*ops)[*total_ops - 1];
+ *total_ops -= n;
+
+ *ops = (slang_operation *)
+ slang_alloc_realloc(*ops,
+ (*total_ops + n) * sizeof(slang_operation),
+ *total_ops * sizeof(slang_operation));
+ if (*ops == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ return 1;
}
-static int is_constructor_name (const char *name, slang_atom a_name, slang_struct_scope *structs)
+static int
+is_constructor_name(const char *name, slang_atom a_name,
+ slang_struct_scope * structs)
{
- if (slang_type_specifier_type_from_string (name) != slang_spec_void)
- return 1;
- return slang_struct_scope_find (structs, a_name, 1) != NULL;
+ if (slang_type_specifier_type_from_string(name) != slang_spec_void)
+ return 1;
+ return slang_struct_scope_find(structs, a_name, 1) != NULL;
}
-static int parse_expression (slang_parse_ctx *C, slang_output_ctx *O, slang_operation *oper)
+static int
+parse_expression(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_operation * oper)
{
- slang_operation *ops = NULL;
- unsigned int num_ops = 0;
- int number;
-
- while (*C->I != OP_END)
- {
- slang_operation *op;
- const unsigned int op_code = *C->I++;
-
- /* allocate default operation, becomes a no-op if not used */
- ops = (slang_operation *) slang_alloc_realloc (ops,
- num_ops * sizeof (slang_operation), (num_ops + 1) * sizeof (slang_operation));
- if (ops == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- op = &ops[num_ops];
- if (!slang_operation_construct (op))
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- num_ops++;
- op->locals->outer_scope = O->vars;
-
- switch (op_code)
- {
- case OP_PUSH_VOID:
- op->type = slang_oper_void;
- break;
- case OP_PUSH_BOOL:
- op->type = slang_oper_literal_bool;
- if (!parse_number (C, &number))
- return 0;
- op->literal = (GLfloat) number;
- break;
- case OP_PUSH_INT:
- op->type = slang_oper_literal_int;
- if (!parse_number (C, &number))
- return 0;
- op->literal = (GLfloat) number;
- break;
- case OP_PUSH_FLOAT:
- op->type = slang_oper_literal_float;
- if (!parse_float (C, &op->literal))
- return 0;
- break;
- case OP_PUSH_IDENTIFIER:
- op->type = slang_oper_identifier;
- op->a_id = parse_identifier (C);
- if (op->a_id == SLANG_ATOM_NULL)
- return 0;
- break;
- case OP_SEQUENCE:
- op->type = slang_oper_sequence;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_ASSIGN:
- op->type = slang_oper_assign;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_ADDASSIGN:
- op->type = slang_oper_addassign;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_SUBASSIGN:
- op->type = slang_oper_subassign;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_MULASSIGN:
- op->type = slang_oper_mulassign;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_DIVASSIGN:
- op->type = slang_oper_divassign;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- /*case OP_MODASSIGN:*/
- /*case OP_LSHASSIGN:*/
- /*case OP_RSHASSIGN:*/
- /*case OP_ORASSIGN:*/
- /*case OP_XORASSIGN:*/
- /*case OP_ANDASSIGN:*/
- case OP_SELECT:
- op->type = slang_oper_select;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 3))
- return 0;
- break;
- case OP_LOGICALOR:
- op->type = slang_oper_logicalor;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_LOGICALXOR:
- op->type = slang_oper_logicalxor;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_LOGICALAND:
- op->type = slang_oper_logicaland;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- /*case OP_BITOR:*/
- /*case OP_BITXOR:*/
- /*case OP_BITAND:*/
- case OP_EQUAL:
- op->type = slang_oper_equal;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_NOTEQUAL:
- op->type = slang_oper_notequal;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_LESS:
- op->type = slang_oper_less;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_GREATER:
- op->type = slang_oper_greater;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_LESSEQUAL:
- op->type = slang_oper_lessequal;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_GREATEREQUAL:
- op->type = slang_oper_greaterequal;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- /*case OP_LSHIFT:*/
- /*case OP_RSHIFT:*/
- case OP_ADD:
- op->type = slang_oper_add;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_SUBTRACT:
- op->type = slang_oper_subtract;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_MULTIPLY:
- op->type = slang_oper_multiply;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_DIVIDE:
- op->type = slang_oper_divide;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- /*case OP_MODULUS:*/
- case OP_PREINCREMENT:
- op->type = slang_oper_preincrement;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
- return 0;
- break;
- case OP_PREDECREMENT:
- op->type = slang_oper_predecrement;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
- return 0;
- break;
- case OP_PLUS:
- op->type = slang_oper_plus;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
- return 0;
- break;
- case OP_MINUS:
- op->type = slang_oper_minus;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
- return 0;
- break;
- case OP_NOT:
- op->type = slang_oper_not;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
- return 0;
- break;
- /*case OP_COMPLEMENT:*/
- case OP_SUBSCRIPT:
- op->type = slang_oper_subscript;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
- return 0;
- break;
- case OP_CALL:
- op->type = slang_oper_call;
- op->a_id = parse_identifier (C);
- if (op->a_id == SLANG_ATOM_NULL)
- return 0;
- while (*C->I != OP_END)
- if (!parse_child_operation (C, O, op, 0))
- return 0;
- C->I++;
- if (!C->parsing_builtin && !slang_function_scope_find_by_name (O->funs, op->a_id, 1))
- {
- const char *id;
-
- id = slang_atom_pool_id (C->atoms, op->a_id);
- if (!is_constructor_name (id, op->a_id, O->structs))
- {
- slang_info_log_error (C->L, "%s: undeclared function name.", id);
- return 0;
- }
- }
- break;
- case OP_FIELD:
- op->type = slang_oper_field;
- op->a_id = parse_identifier (C);
- if (op->a_id == SLANG_ATOM_NULL)
- return 0;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
- return 0;
- break;
- case OP_POSTINCREMENT:
- op->type = slang_oper_postincrement;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
- return 0;
- break;
- case OP_POSTDECREMENT:
- op->type = slang_oper_postdecrement;
- if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
- return 0;
- break;
- default:
- return 0;
- }
- }
- C->I++;
-
- *oper = *ops;
- slang_alloc_free (ops);
- return 1;
+ slang_operation *ops = NULL;
+ unsigned int num_ops = 0;
+ int number;
+
+ while (*C->I != OP_END) {
+ slang_operation *op;
+ const unsigned int op_code = *C->I++;
+
+ /* allocate default operation, becomes a no-op if not used */
+ ops = (slang_operation *)
+ slang_alloc_realloc(ops,
+ num_ops * sizeof(slang_operation),
+ (num_ops + 1) * sizeof(slang_operation));
+ if (ops == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ op = &ops[num_ops];
+ if (!slang_operation_construct(op)) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ num_ops++;
+ op->locals->outer_scope = O->vars;
+
+ switch (op_code) {
+ case OP_PUSH_VOID:
+ op->type = slang_oper_void;
+ break;
+ case OP_PUSH_BOOL:
+ op->type = slang_oper_literal_bool;
+ if (!parse_number(C, &number))
+ return 0;
+ op->literal = (GLfloat) number;
+ break;
+ case OP_PUSH_INT:
+ op->type = slang_oper_literal_int;
+ if (!parse_number(C, &number))
+ return 0;
+ op->literal = (GLfloat) number;
+ break;
+ case OP_PUSH_FLOAT:
+ op->type = slang_oper_literal_float;
+ if (!parse_float(C, &op->literal))
+ return 0;
+ break;
+ case OP_PUSH_IDENTIFIER:
+ op->type = slang_oper_identifier;
+ op->a_id = parse_identifier(C);
+ if (op->a_id == SLANG_ATOM_NULL)
+ return 0;
+ break;
+ case OP_SEQUENCE:
+ op->type = slang_oper_sequence;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_ASSIGN:
+ op->type = slang_oper_assign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_ADDASSIGN:
+ op->type = slang_oper_addassign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_SUBASSIGN:
+ op->type = slang_oper_subassign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_MULASSIGN:
+ op->type = slang_oper_mulassign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_DIVASSIGN:
+ op->type = slang_oper_divassign;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ /*case OP_MODASSIGN: */
+ /*case OP_LSHASSIGN: */
+ /*case OP_RSHASSIGN: */
+ /*case OP_ORASSIGN: */
+ /*case OP_XORASSIGN: */
+ /*case OP_ANDASSIGN: */
+ case OP_SELECT:
+ op->type = slang_oper_select;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 3))
+ return 0;
+ break;
+ case OP_LOGICALOR:
+ op->type = slang_oper_logicalor;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_LOGICALXOR:
+ op->type = slang_oper_logicalxor;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_LOGICALAND:
+ op->type = slang_oper_logicaland;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ /*case OP_BITOR: */
+ /*case OP_BITXOR: */
+ /*case OP_BITAND: */
+ case OP_EQUAL:
+ op->type = slang_oper_equal;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_NOTEQUAL:
+ op->type = slang_oper_notequal;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_LESS:
+ op->type = slang_oper_less;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_GREATER:
+ op->type = slang_oper_greater;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_LESSEQUAL:
+ op->type = slang_oper_lessequal;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_GREATEREQUAL:
+ op->type = slang_oper_greaterequal;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ /*case OP_LSHIFT: */
+ /*case OP_RSHIFT: */
+ case OP_ADD:
+ op->type = slang_oper_add;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_SUBTRACT:
+ op->type = slang_oper_subtract;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_MULTIPLY:
+ op->type = slang_oper_multiply;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_DIVIDE:
+ op->type = slang_oper_divide;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ /*case OP_MODULUS: */
+ case OP_PREINCREMENT:
+ op->type = slang_oper_preincrement;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_PREDECREMENT:
+ op->type = slang_oper_predecrement;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_PLUS:
+ op->type = slang_oper_plus;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_MINUS:
+ op->type = slang_oper_minus;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_NOT:
+ op->type = slang_oper_not;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ /*case OP_COMPLEMENT: */
+ case OP_SUBSCRIPT:
+ op->type = slang_oper_subscript;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
+ return 0;
+ break;
+ case OP_CALL:
+ op->type = slang_oper_call;
+ op->a_id = parse_identifier(C);
+ if (op->a_id == SLANG_ATOM_NULL)
+ return 0;
+ while (*C->I != OP_END)
+ if (!parse_child_operation(C, O, op, 0))
+ return 0;
+ C->I++;
+ if (!C->parsing_builtin
+ && !slang_function_scope_find_by_name(O->funs, op->a_id, 1)) {
+ const char *id;
+
+ id = slang_atom_pool_id(C->atoms, op->a_id);
+ if (!is_constructor_name(id, op->a_id, O->structs)) {
+ slang_info_log_error(C->L, "%s: undeclared function name.", id);
+ return 0;
+ }
+ }
+ break;
+ case OP_FIELD:
+ op->type = slang_oper_field;
+ op->a_id = parse_identifier(C);
+ if (op->a_id == SLANG_ATOM_NULL)
+ return 0;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_POSTINCREMENT:
+ op->type = slang_oper_postincrement;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ case OP_POSTDECREMENT:
+ op->type = slang_oper_postdecrement;
+ if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
+ return 0;
+ break;
+ default:
+ return 0;
+ }
+ }
+ C->I++;
+
+ *oper = *ops;
+ slang_alloc_free(ops);
+
+ return 1;
}
/* parameter qualifier */
#define PARAMETER_ARRAY_NOT_PRESENT 0
#define PARAMETER_ARRAY_PRESENT 1
-static int parse_parameter_declaration (slang_parse_ctx *C, slang_output_ctx *O,
- slang_variable *param)
+static int
+parse_parameter_declaration(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_variable * param)
{
- /* parse and validate the parameter's type qualifiers (there can be two at most) because
- * not all combinations are valid */
- if (!parse_type_qualifier (C, ¶m->type.qualifier))
- return 0;
- switch (*C->I++)
- {
- case PARAM_QUALIFIER_IN:
- if (param->type.qualifier != slang_qual_const && param->type.qualifier != slang_qual_none)
- {
- slang_info_log_error (C->L, "Invalid type qualifier.");
- return 0;
- }
- break;
- case PARAM_QUALIFIER_OUT:
- if (param->type.qualifier == slang_qual_none)
- param->type.qualifier = slang_qual_out;
- else
- {
- slang_info_log_error (C->L, "Invalid type qualifier.");
- return 0;
- }
- break;
- case PARAM_QUALIFIER_INOUT:
- if (param->type.qualifier == slang_qual_none)
- param->type.qualifier = slang_qual_inout;
- else
- {
- slang_info_log_error (C->L, "Invalid type qualifier.");
- return 0;
- }
- break;
- default:
- return 0;
- }
-
- /* parse parameter's type specifier and name */
- if (!parse_type_specifier (C, O, ¶m->type.specifier))
- return 0;
- param->a_name = parse_identifier (C);
- if (param->a_name == SLANG_ATOM_NULL)
- return 0;
-
- /* if the parameter is an array, parse its size (the size must be explicitly defined */
- if (*C->I++ == PARAMETER_ARRAY_PRESENT)
- {
- slang_type_specifier p;
-
- slang_type_specifier_ctr (&p);
- if (!slang_type_specifier_copy (&p, ¶m->type.specifier))
- {
- slang_type_specifier_dtr (&p);
- return GL_FALSE;
- }
- if (!convert_to_array (C, param, &p))
- {
- slang_type_specifier_dtr (&p);
- return GL_FALSE;
- }
- slang_type_specifier_dtr (&p);
- if (!parse_array_len (C, O, ¶m->array_len))
- return GL_FALSE;
- }
-
- /* calculate the parameter size */
- if (!calculate_var_size (C, O, param))
- return GL_FALSE;
-
- /* TODO: allocate the local address here? */
- return 1;
+ /* parse and validate the parameter's type qualifiers (there can be
+ * two at most) because not all combinations are valid
+ */
+ if (!parse_type_qualifier(C, ¶m->type.qualifier))
+ return 0;
+ switch (*C->I++) {
+ case PARAM_QUALIFIER_IN:
+ if (param->type.qualifier != slang_qual_const
+ && param->type.qualifier != slang_qual_none) {
+ slang_info_log_error(C->L, "Invalid type qualifier.");
+ return 0;
+ }
+ break;
+ case PARAM_QUALIFIER_OUT:
+ if (param->type.qualifier == slang_qual_none)
+ param->type.qualifier = slang_qual_out;
+ else {
+ slang_info_log_error(C->L, "Invalid type qualifier.");
+ return 0;
+ }
+ break;
+ case PARAM_QUALIFIER_INOUT:
+ if (param->type.qualifier == slang_qual_none)
+ param->type.qualifier = slang_qual_inout;
+ else {
+ slang_info_log_error(C->L, "Invalid type qualifier.");
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+
+ /* parse parameter's type specifier and name */
+ if (!parse_type_specifier(C, O, ¶m->type.specifier))
+ return 0;
+ param->a_name = parse_identifier(C);
+ if (param->a_name == SLANG_ATOM_NULL)
+ return 0;
+
+ /* if the parameter is an array, parse its size (the size must be
+ * explicitly defined
+ */
+ if (*C->I++ == PARAMETER_ARRAY_PRESENT) {
+ slang_type_specifier p;
+
+ slang_type_specifier_ctr(&p);
+ if (!slang_type_specifier_copy(&p, ¶m->type.specifier)) {
+ slang_type_specifier_dtr(&p);
+ return GL_FALSE;
+ }
+ if (!convert_to_array(C, param, &p)) {
+ slang_type_specifier_dtr(&p);
+ return GL_FALSE;
+ }
+ slang_type_specifier_dtr(&p);
+ if (!parse_array_len(C, O, ¶m->array_len))
+ return GL_FALSE;
+ }
+
+ /* calculate the parameter size */
+ if (!calculate_var_size(C, O, param))
+ return GL_FALSE;
+
+ /* TODO: allocate the local address here? */
+ return 1;
}
/* function type */
/*#define OPERATOR_COMPLEMENT 28*/
#define OPERATOR_NOT 29
-static const struct {
- unsigned int o_code;
- const char *o_name;
+static const struct
+{
+ unsigned int o_code;
+ const char *o_name;
} operator_names[] = {
- { OPERATOR_INCREMENT, "++" },
- { OPERATOR_ADDASSIGN, "+=" },
- { OPERATOR_PLUS, "+" },
- { OPERATOR_DECREMENT, "--" },
- { OPERATOR_SUBASSIGN, "-=" },
- { OPERATOR_MINUS, "-" },
- { OPERATOR_NOT, "!" },
- { OPERATOR_MULASSIGN, "*=" },
- { OPERATOR_MULTIPLY, "*" },
- { OPERATOR_DIVASSIGN, "/=" },
- { OPERATOR_DIVIDE, "/" },
- { OPERATOR_LESSEQUAL, "<=" },
- /*{ OPERATOR_LSHASSIGN, "<<=" },*/
- /*{ OPERATOR_LSHIFT, "<<" },*/
- { OPERATOR_LESS, "<" },
- { OPERATOR_GREATEREQUAL, ">=" },
- /*{ OPERATOR_RSHASSIGN, ">>=" },*/
- /*{ OPERATOR_RSHIFT, ">>" },*/
- { OPERATOR_GREATER, ">" },
- /*{ OPERATOR_MODASSIGN, "%=" },*/
- /*{ OPERATOR_MODULUS, "%" },*/
- /*{ OPERATOR_ANDASSIGN, "&=" },*/
- /*{ OPERATOR_BITAND, "&" },*/
- /*{ OPERATOR_ORASSIGN, "|=" },*/
- /*{ OPERATOR_BITOR, "|" },*/
- /*{ OPERATOR_COMPLEMENT, "~" },*/
- /*{ OPERATOR_XORASSIGN, "^=" },*/
- { OPERATOR_LOGICALXOR, "^^" },
- /*{ OPERATOR_BITXOR, "^" }*/
+ {OPERATOR_INCREMENT, "++"},
+ {OPERATOR_ADDASSIGN, "+="},
+ {OPERATOR_PLUS, "+"},
+ {OPERATOR_DECREMENT, "--"},
+ {OPERATOR_SUBASSIGN, "-="},
+ {OPERATOR_MINUS, "-"},
+ {OPERATOR_NOT, "!"},
+ {OPERATOR_MULASSIGN, "*="},
+ {OPERATOR_MULTIPLY, "*"},
+ {OPERATOR_DIVASSIGN, "/="},
+ {OPERATOR_DIVIDE, "/"},
+ {OPERATOR_LESSEQUAL, "<="},
+ /*{ OPERATOR_LSHASSIGN, "<<=" }, */
+ /*{ OPERATOR_LSHIFT, "<<" }, */
+ {OPERATOR_LESS, "<"},
+ {OPERATOR_GREATEREQUAL, ">="},
+ /*{ OPERATOR_RSHASSIGN, ">>=" }, */
+ /*{ OPERATOR_RSHIFT, ">>" }, */
+ {OPERATOR_GREATER, ">"},
+ /*{ OPERATOR_MODASSIGN, "%=" }, */
+ /*{ OPERATOR_MODULUS, "%" }, */
+ /*{ OPERATOR_ANDASSIGN, "&=" }, */
+ /*{ OPERATOR_BITAND, "&" }, */
+ /*{ OPERATOR_ORASSIGN, "|=" }, */
+ /*{ OPERATOR_BITOR, "|" }, */
+ /*{ OPERATOR_COMPLEMENT, "~" }, */
+ /*{ OPERATOR_XORASSIGN, "^=" }, */
+ {OPERATOR_LOGICALXOR, "^^"},
+ /*{ OPERATOR_BITXOR, "^" } */
};
-static slang_atom parse_operator_name (slang_parse_ctx *C)
+static slang_atom
+parse_operator_name(slang_parse_ctx * C)
{
- unsigned int i;
-
- for (i = 0; i < sizeof (operator_names) / sizeof (*operator_names); i++)
- {
- if (operator_names[i].o_code == (unsigned int) (*C->I))
- {
- slang_atom atom = slang_atom_pool_atom (C->atoms, operator_names[i].o_name);
- if (atom == SLANG_ATOM_NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- C->I++;
- return atom;
- }
- }
- return 0;
+ unsigned int i;
+
+ for (i = 0; i < sizeof(operator_names) / sizeof(*operator_names); i++) {
+ if (operator_names[i].o_code == (unsigned int) (*C->I)) {
+ slang_atom atom =
+ slang_atom_pool_atom(C->atoms, operator_names[i].o_name);
+ if (atom == SLANG_ATOM_NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ C->I++;
+ return atom;
+ }
+ }
+ return 0;
}
-static int parse_function_prototype (slang_parse_ctx *C, slang_output_ctx *O, slang_function *func)
+static int
+parse_function_prototype(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_function * func)
{
- /* parse function type and name */
- if (!parse_fully_specified_type (C, O, &func->header.type))
- return 0;
- switch (*C->I++)
- {
- case FUNCTION_ORDINARY:
- func->kind = slang_func_ordinary;
- func->header.a_name = parse_identifier (C);
- if (func->header.a_name == SLANG_ATOM_NULL)
- return 0;
- break;
- case FUNCTION_CONSTRUCTOR:
- func->kind = slang_func_constructor;
- if (func->header.type.specifier.type == slang_spec_struct)
- return 0;
- func->header.a_name = slang_atom_pool_atom (C->atoms,
- slang_type_specifier_type_to_string (func->header.type.specifier.type));
- if (func->header.a_name == SLANG_ATOM_NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- break;
- case FUNCTION_OPERATOR:
- func->kind = slang_func_operator;
- func->header.a_name = parse_operator_name (C);
- if (func->header.a_name == SLANG_ATOM_NULL)
- return 0;
- break;
- default:
- return 0;
- }
-
- /* parse function parameters */
- while (*C->I++ == PARAMETER_NEXT)
- {
- slang_variable *p;
-
- func->parameters->variables = (slang_variable *) slang_alloc_realloc (
- func->parameters->variables,
- func->parameters->num_variables * sizeof (slang_variable),
- (func->parameters->num_variables + 1) * sizeof (slang_variable));
- if (func->parameters->variables == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- p = &func->parameters->variables[func->parameters->num_variables];
- if (!slang_variable_construct (p))
- return 0;
- func->parameters->num_variables++;
- if (!parse_parameter_declaration (C, O, p))
- return 0;
- }
-
- /* function formal parameters and local variables share the same scope, so save
- * the information about param count in a seperate place
- * also link the scope to the global variable scope so when a given identifier is not
- * found here, the search process continues in the global space */
- func->param_count = func->parameters->num_variables;
- func->parameters->outer_scope = O->vars;
- return 1;
+ /* parse function type and name */
+ if (!parse_fully_specified_type(C, O, &func->header.type))
+ return 0;
+ switch (*C->I++) {
+ case FUNCTION_ORDINARY:
+ func->kind = slang_func_ordinary;
+ func->header.a_name = parse_identifier(C);
+ if (func->header.a_name == SLANG_ATOM_NULL)
+ return 0;
+ break;
+ case FUNCTION_CONSTRUCTOR:
+ func->kind = slang_func_constructor;
+ if (func->header.type.specifier.type == slang_spec_struct)
+ return 0;
+ func->header.a_name =
+ slang_atom_pool_atom(C->atoms,
+ slang_type_specifier_type_to_string
+ (func->header.type.specifier.type));
+ if (func->header.a_name == SLANG_ATOM_NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ break;
+ case FUNCTION_OPERATOR:
+ func->kind = slang_func_operator;
+ func->header.a_name = parse_operator_name(C);
+ if (func->header.a_name == SLANG_ATOM_NULL)
+ return 0;
+ break;
+ default:
+ return 0;
+ }
+
+ /* parse function parameters */
+ while (*C->I++ == PARAMETER_NEXT) {
+ slang_variable *p;
+
+ func->parameters->variables = (slang_variable *)
+ slang_alloc_realloc(func->parameters->variables,
+ func->parameters->num_variables * sizeof(slang_variable),
+ (func->parameters->num_variables + 1) * sizeof(slang_variable));
+ if (func->parameters->variables == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ p = &func->parameters->variables[func->parameters->num_variables];
+ if (!slang_variable_construct(p))
+ return 0;
+ func->parameters->num_variables++;
+ if (!parse_parameter_declaration(C, O, p))
+ return 0;
+ }
+
+ /* function formal parameters and local variables share the same
+ * scope, so save the information about param count in a seperate
+ * place also link the scope to the global variable scope so when a
+ * given identifier is not found here, the search process continues
+ * in the global space
+ */
+ func->param_count = func->parameters->num_variables;
+ func->parameters->outer_scope = O->vars;
+ return 1;
}
-static int parse_function_definition (slang_parse_ctx *C, slang_output_ctx *O, slang_function *func)
+static int
+parse_function_definition(slang_parse_ctx * C, slang_output_ctx * O,
+ slang_function * func)
{
- slang_output_ctx o = *O;
-
- if (!parse_function_prototype (C, O, func))
- return 0;
-
- /* create function's body operation */
- func->body = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (func->body == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_operation_construct (func->body))
- {
- slang_alloc_free (func->body);
- func->body = NULL;
- slang_info_log_memory (C->L);
- return 0;
- }
-
- /* to parse the body the parse context is modified in order to capture parsed variables
- * into function's local variable scope */
- C->global_scope = 0;
- o.vars = func->parameters;
- if (!parse_statement (C, &o, func->body))
- return 0;
- C->global_scope = 1;
- return 1;
+ slang_output_ctx o = *O;
+
+ if (!parse_function_prototype(C, O, func))
+ return 0;
+
+ /* create function's body operation */
+ func->body =
+ (slang_operation *) slang_alloc_malloc(sizeof(slang_operation));
+ if (func->body == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!slang_operation_construct(func->body)) {
+ slang_alloc_free(func->body);
+ func->body = NULL;
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+
+ /* to parse the body the parse context is modified in order to
+ * capture parsed variables into function's local variable scope
+ */
+ C->global_scope = GL_FALSE;
+ o.vars = func->parameters;
+ if (!parse_statement(C, &o, func->body))
+ return 0;
+
+ C->global_scope = GL_TRUE;
+ return 1;
}
-static GLboolean initialize_global (slang_assemble_ctx *A, slang_variable *var)
+static GLboolean
+initialize_global(slang_assemble_ctx * A, slang_variable * var)
{
- slang_assembly_file_restore_point point;
- slang_machine mach;
- slang_assembly_local_info save_local = A->local;
- slang_operation op_id, op_assign;
- GLboolean result;
-
- /* save the current assembly */
- if (!slang_assembly_file_restore_point_save (A->file, &point))
- return GL_FALSE;
-
- /* setup the machine */
- mach = *A->mach;
- mach.ip = A->file->count;
-
- /* allocate local storage for expression */
- A->local.ret_size = 0;
- A->local.addr_tmp = 0;
- A->local.swizzle_tmp = 4;
- if (!slang_assembly_file_push_label (A->file, slang_asm_local_alloc, 20))
- return GL_FALSE;
- if (!slang_assembly_file_push_label (A->file, slang_asm_enter, 20))
- return GL_FALSE;
-
- /* construct the left side of assignment */
- if (!slang_operation_construct (&op_id))
- return GL_FALSE;
- op_id.type = slang_oper_identifier;
- op_id.a_id = var->a_name;
-
- /* put the variable into operation's scope */
- op_id.locals->variables = (slang_variable *) slang_alloc_malloc (sizeof (slang_variable));
- if (op_id.locals->variables == NULL)
- {
- slang_operation_destruct (&op_id);
- return GL_FALSE;
- }
- op_id.locals->num_variables = 1;
- op_id.locals->variables[0] = *var;
-
- /* construct the assignment expression */
- if (!slang_operation_construct (&op_assign))
- {
- op_id.locals->num_variables = 0;
- slang_operation_destruct (&op_id);
- return GL_FALSE;
- }
- op_assign.type = slang_oper_assign;
- op_assign.children = (slang_operation *) slang_alloc_malloc (2 * sizeof (slang_operation));
- if (op_assign.children == NULL)
- {
- slang_operation_destruct (&op_assign);
- op_id.locals->num_variables = 0;
- slang_operation_destruct (&op_id);
- return GL_FALSE;
- }
- op_assign.num_children = 2;
- op_assign.children[0] = op_id;
- op_assign.children[1] = *var->initializer;
-
- /* insert the actual expression */
- result = _slang_assemble_operation (A, &op_assign, slang_ref_forbid);
-
- /* carefully destroy the operations */
- op_assign.num_children = 0;
- slang_alloc_free (op_assign.children);
- op_assign.children = NULL;
- slang_operation_destruct (&op_assign);
- op_id.locals->num_variables = 0;
- slang_operation_destruct (&op_id);
-
- if (!result)
- return GL_FALSE;
- if (!slang_assembly_file_push (A->file, slang_asm_exit))
- return GL_FALSE;
-
- /* execute the expression */
- if (!_slang_execute2 (A->file, &mach))
- return GL_FALSE;
-
- /* restore the old assembly */
- if (!slang_assembly_file_restore_point_load (A->file, &point))
- return GL_FALSE;
- A->local = save_local;
-
- /* now we copy the contents of the initialized variable back to the original machine */
- _mesa_memcpy ((GLubyte *) A->mach->mem + var->address, (GLubyte *) mach.mem + var->address,
- var->size);
-
- return GL_TRUE;
+ slang_assembly_file_restore_point point;
+ slang_machine mach;
+ slang_assembly_local_info save_local = A->local;
+ slang_operation op_id, op_assign;
+ GLboolean result;
+
+ /* save the current assembly */
+ if (!slang_assembly_file_restore_point_save(A->file, &point))
+ return GL_FALSE;
+
+ /* setup the machine */
+ mach = *A->mach;
+ mach.ip = A->file->count;
+
+ /* allocate local storage for expression */
+ A->local.ret_size = 0;
+ A->local.addr_tmp = 0;
+ A->local.swizzle_tmp = 4;
+ if (!slang_assembly_file_push_label(A->file, slang_asm_local_alloc, 20))
+ return GL_FALSE;
+ if (!slang_assembly_file_push_label(A->file, slang_asm_enter, 20))
+ return GL_FALSE;
+
+ /* construct the left side of assignment */
+ if (!slang_operation_construct(&op_id))
+ return GL_FALSE;
+ op_id.type = slang_oper_identifier;
+ op_id.a_id = var->a_name;
+
+ /* put the variable into operation's scope */
+ op_id.locals->variables =
+ (slang_variable *) slang_alloc_malloc(sizeof(slang_variable));
+ if (op_id.locals->variables == NULL) {
+ slang_operation_destruct(&op_id);
+ return GL_FALSE;
+ }
+ op_id.locals->num_variables = 1;
+ op_id.locals->variables[0] = *var;
+
+ /* construct the assignment expression */
+ if (!slang_operation_construct(&op_assign)) {
+ op_id.locals->num_variables = 0;
+ slang_operation_destruct(&op_id);
+ return GL_FALSE;
+ }
+ op_assign.type = slang_oper_assign;
+ op_assign.children =
+ (slang_operation *) slang_alloc_malloc(2 * sizeof(slang_operation));
+ if (op_assign.children == NULL) {
+ slang_operation_destruct(&op_assign);
+ op_id.locals->num_variables = 0;
+ slang_operation_destruct(&op_id);
+ return GL_FALSE;
+ }
+ op_assign.num_children = 2;
+ op_assign.children[0] = op_id;
+ op_assign.children[1] = *var->initializer;
+
+ /* insert the actual expression */
+ result = _slang_assemble_operation(A, &op_assign, slang_ref_forbid);
+
+ /* carefully destroy the operations */
+ op_assign.num_children = 0;
+ slang_alloc_free(op_assign.children);
+ op_assign.children = NULL;
+ slang_operation_destruct(&op_assign);
+ op_id.locals->num_variables = 0;
+ slang_operation_destruct(&op_id);
+
+ if (!result)
+ return GL_FALSE;
+ if (!slang_assembly_file_push(A->file, slang_asm_exit))
+ return GL_FALSE;
+
+ /* execute the expression */
+ if (!_slang_execute2(A->file, &mach))
+ return GL_FALSE;
+
+ /* restore the old assembly */
+ if (!slang_assembly_file_restore_point_load(A->file, &point))
+ return GL_FALSE;
+ A->local = save_local;
+
+ /* now we copy the contents of the initialized variable back to the original machine */
+ _mesa_memcpy((GLubyte *) A->mach->mem + var->address,
+ (GLubyte *) mach.mem + var->address, var->size);
+
+ return GL_TRUE;
}
/* init declarator list */
#define VARIABLE_ARRAY_EXPLICIT 3
#define VARIABLE_ARRAY_UNKNOWN 4
-static int parse_init_declarator (slang_parse_ctx *C, slang_output_ctx *O,
- const slang_fully_specified_type *type)
+
+/**
+ * Parse the initializer for a variable declaration.
+ */
+static int
+parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O,
+ const slang_fully_specified_type * type)
{
- slang_variable *var;
-
- /* empty init declatator (without name, e.g. "float ;") */
- if (*C->I++ == VARIABLE_NONE)
- return 1;
-
- /* make room for the new variable and initialize it */
- O->vars->variables = (slang_variable *) slang_alloc_realloc (O->vars->variables,
- O->vars->num_variables * sizeof (slang_variable),
- (O->vars->num_variables + 1) * sizeof (slang_variable));
- if (O->vars->variables == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- var = &O->vars->variables[O->vars->num_variables];
- if (!slang_variable_construct (var))
- return 0;
- O->vars->num_variables++;
-
- /* copy the declarator qualifier type, parse the identifier */
- var->global = C->global_scope;
- var->type.qualifier = type->qualifier;
- var->a_name = parse_identifier (C);
- if (var->a_name == SLANG_ATOM_NULL)
- return 0;
-
- switch (*C->I++)
- {
- case VARIABLE_NONE:
- /* simple variable declarator - just copy the specifier */
- if (!slang_type_specifier_copy (&var->type.specifier, &type->specifier))
- return 0;
- break;
- case VARIABLE_INITIALIZER:
- /* initialized variable - copy the specifier and parse the expression */
- if (!slang_type_specifier_copy (&var->type.specifier, &type->specifier))
- return 0;
- var->initializer = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
- if (var->initializer == NULL)
- {
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!slang_operation_construct (var->initializer))
- {
- slang_alloc_free (var->initializer);
- var->initializer = NULL;
- slang_info_log_memory (C->L);
- return 0;
- }
- if (!parse_expression (C, O, var->initializer))
- return 0;
- break;
+ slang_variable *var;
+
+ /* empty init declatator (without name, e.g. "float ;") */
+ if (*C->I++ == VARIABLE_NONE)
+ return 1;
+
+ /* make room for the new variable and initialize it */
+ O->vars->variables = (slang_variable *)
+ slang_alloc_realloc(O->vars->variables,
+ O->vars->num_variables * sizeof(slang_variable),
+ (O->vars->num_variables + 1) * sizeof(slang_variable));
+ if (O->vars->variables == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ var = &O->vars->variables[O->vars->num_variables];
+ if (!slang_variable_construct(var))
+ return 0;
+ O->vars->num_variables++;
+
+ /* copy the declarator qualifier type, parse the identifier */
+ var->global = C->global_scope;
+ var->type.qualifier = type->qualifier;
+ var->a_name = parse_identifier(C);
+ if (var->a_name == SLANG_ATOM_NULL)
+ return 0;
+
+ switch (*C->I++) {
+ case VARIABLE_NONE:
+ /* simple variable declarator - just copy the specifier */
+ if (!slang_type_specifier_copy(&var->type.specifier, &type->specifier))
+ return 0;
+ break;
+ case VARIABLE_INITIALIZER:
+ /* initialized variable - copy the specifier and parse the expression */
+ if (!slang_type_specifier_copy(&var->type.specifier, &type->specifier))
+ return 0;
+ var->initializer =
+ (slang_operation *) slang_alloc_malloc(sizeof(slang_operation));
+ if (var->initializer == NULL) {
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!slang_operation_construct(var->initializer)) {
+ slang_alloc_free(var->initializer);
+ var->initializer = NULL;
+ slang_info_log_memory(C->L);
+ return 0;
+ }
+ if (!parse_expression(C, O, var->initializer))
+ return 0;
+ break;
#if 0
- case VARIABLE_ARRAY_UNKNOWN:
- /* unsized array - mark it as array and copy the specifier to the array element */
- if (!convert_to_array (C, var, &type->specifier))
- return GL_FALSE;
- break;
+ case VARIABLE_ARRAY_UNKNOWN:
+ /* unsized array - mark it as array and copy the specifier to
+ the array element
+ */
+ if (!convert_to_array(C, var, &type->specifier))
+ return GL_FALSE;
+ break;
#endif
- case VARIABLE_ARRAY_EXPLICIT:
- if (!convert_to_array (C, var, &type->specifier))
- return GL_FALSE;
- if (!parse_array_len (C, O, &var->array_len))
- return GL_FALSE;
- break;
- default:
- return 0;
- }
-
- /* allocate global address space for a variable with a known size */
- if (C->global_scope && !(var->type.specifier.type == slang_spec_array && var->array_len == 0))
- {
- if (!calculate_var_size (C, O, var))
- return GL_FALSE;
- var->address = slang_var_pool_alloc (O->global_pool, var->size);
- }
-
- /* initialize global variable */
+ case VARIABLE_ARRAY_EXPLICIT:
+ if (!convert_to_array(C, var, &type->specifier))
+ return GL_FALSE;
+ if (!parse_array_len(C, O, &var->array_len))
+ return GL_FALSE;
+ break;
+ default:
+ return 0;
+ }
+
+ /* allocate global address space for a variable with a known size */
+ if (C->global_scope
+ && !(var->type.specifier.type == slang_spec_array
+ && var->array_len == 0)) {
+ if (!calculate_var_size(C, O, var))
+ return GL_FALSE;
+ var->address = slang_var_pool_alloc(O->global_pool, var->size);
+ }
+
+ /* initialize global variable */
if (C->global_scope) {
if (var->initializer != NULL) {
slang_assemble_ctx A;
A.space.funcs = O->funs;
A.space.structs = O->structs;
A.space.vars = O->vars;
- if (!initialize_global (&A, var))
+ if (!initialize_global(&A, var))
return 0;
}
else {
- _mesa_memset ((GLubyte *) (O->machine->mem) + var->address, 0, var->size);
+ _mesa_memset((GLubyte *) (O->machine->mem) + var->address, 0,
+ var->size);
}
- }
- return 1;
+ }
+ return 1;
}
-static int parse_init_declarator_list (slang_parse_ctx *C, slang_output_ctx *O)
+/**
+ * Parse a list of variable declarations. Each variable may have an
+ * initializer.
+ */
+static int
+parse_init_declarator_list(slang_parse_ctx * C, slang_output_ctx * O)
{
- slang_fully_specified_type type;
-
- /* parse the fully specified type, common to all declarators */
- if (!slang_fully_specified_type_construct (&type))
- return 0;
- if (!parse_fully_specified_type (C, O, &type))
- {
- slang_fully_specified_type_destruct (&type);
- return 0;
- }
-
- /* parse declarators, pass-in the parsed type */
- do
- {
- if (!parse_init_declarator (C, O, &type))
- {
- slang_fully_specified_type_destruct (&type);
- return 0;
- }
- }
- while (*C->I++ == DECLARATOR_NEXT);
-
- slang_fully_specified_type_destruct (&type);
- return 1;
+ slang_fully_specified_type type;
+
+ /* parse the fully specified type, common to all declarators */
+ if (!slang_fully_specified_type_construct(&type))
+ return 0;
+ if (!parse_fully_specified_type(C, O, &type)) {
+ slang_fully_specified_type_destruct(&type);
+ return 0;
+ }
+
+ /* parse declarators, pass-in the parsed type */
+ do {
+ if (!parse_init_declarator(C, O, &type)) {
+ slang_fully_specified_type_destruct(&type);
+ return 0;
+ }
+ }
+ while (*C->I++ == DECLARATOR_NEXT);
+
+ slang_fully_specified_type_destruct(&type);
+ return 1;
}
-static int parse_function (slang_parse_ctx *C, slang_output_ctx *O, int definition,
- slang_function **parsed_func_ret)
+
+/**
+ * Parse a function definition or declaration.
+ * \param C parsing context
+ * \param O output context
+ * \param definition if non-zero expect a definition, else a declaration
+ * \param parsed_func_ret returns the parsed function
+ * \return 1 if success, 0 if failure
+ */
+static int
+parse_function(slang_parse_ctx * C, slang_output_ctx * O, int definition,
+ slang_function ** parsed_func_ret)
{
- slang_function parsed_func, *found_func;
-
- /* parse function definition/declaration */
- if (!slang_function_construct (&parsed_func))
- return 0;
- if (definition)
- {
- if (!parse_function_definition (C, O, &parsed_func))
- {
- slang_function_destruct (&parsed_func);
- return 0;
- }
- }
- else
- {
- if (!parse_function_prototype (C, O, &parsed_func))
- {
- slang_function_destruct (&parsed_func);
- return 0;
- }
- }
-
- /* find a function with a prototype matching the parsed one - only the current scope
- * is being searched to allow built-in function overriding */
- found_func = slang_function_scope_find (O->funs, &parsed_func, 0);
- if (found_func == NULL)
- {
- /* add the parsed function to the function list */
- O->funs->functions = (slang_function *) slang_alloc_realloc (O->funs->functions,
- O->funs->num_functions * sizeof (slang_function),
- (O->funs->num_functions + 1) * sizeof (slang_function));
- if (O->funs->functions == NULL)
- {
- slang_info_log_memory (C->L);
- slang_function_destruct (&parsed_func);
- return 0;
- }
- O->funs->functions[O->funs->num_functions] = parsed_func;
- O->funs->num_functions++;
-
- /* return the newly parsed function */
- *parsed_func_ret = &O->funs->functions[O->funs->num_functions - 1];
- }
- else
- {
- /* TODO: check function return type qualifiers and specifiers */
- if (definition)
- {
- if (found_func->body != NULL)
- {
- slang_info_log_error (C->L, "%s: function already has a body.",
- slang_atom_pool_id (C->atoms, parsed_func.header.a_name));
- slang_function_destruct (&parsed_func);
- return 0;
- }
-
- /* destroy the existing function declaration and replace it with the new one,
- * remember to save the fixup table */
- parsed_func.fixups = found_func->fixups;
- slang_fixup_table_init (&found_func->fixups);
- slang_function_destruct (found_func);
- *found_func = parsed_func;
- }
- else
- {
- /* another declaration of the same function prototype - ignore it */
- slang_function_destruct (&parsed_func);
- }
-
- /* return the found function */
- *parsed_func_ret = found_func;
- }
-
- /* assemble the parsed function */
- {
- slang_assemble_ctx A;
-
- A.file = O->assembly;
- A.mach = O->machine;
- A.atoms = C->atoms;
- A.space.funcs = O->funs;
- A.space.structs = O->structs;
- A.space.vars = O->vars;
- if (!_slang_assemble_function (&A, *parsed_func_ret))
- return 0;
- }
- return 1;
+ slang_function parsed_func, *found_func;
+
+ /* parse function definition/declaration */
+ if (!slang_function_construct(&parsed_func))
+ return 0;
+ if (definition) {
+ if (!parse_function_definition(C, O, &parsed_func)) {
+ slang_function_destruct(&parsed_func);
+ return 0;
+ }
+ }
+ else {
+ if (!parse_function_prototype(C, O, &parsed_func)) {
+ slang_function_destruct(&parsed_func);
+ return 0;
+ }
+ }
+
+ /* find a function with a prototype matching the parsed one - only
+ * the current scope is being searched to allow built-in function
+ * overriding
+ */
+ found_func = slang_function_scope_find(O->funs, &parsed_func, 0);
+ if (found_func == NULL) {
+ /* add the parsed function to the function list */
+ O->funs->functions =
+ (slang_function *) slang_alloc_realloc(O->funs->functions,
+ O->funs->num_functions *
+ sizeof(slang_function),
+ (O->funs->num_functions +
+ 1) * sizeof(slang_function));
+ if (O->funs->functions == NULL) {
+ slang_info_log_memory(C->L);
+ slang_function_destruct(&parsed_func);
+ return 0;
+ }
+ O->funs->functions[O->funs->num_functions] = parsed_func;
+ O->funs->num_functions++;
+
+ /* return the newly parsed function */
+ *parsed_func_ret = &O->funs->functions[O->funs->num_functions - 1];
+ }
+ else {
+ /* TODO: check function return type qualifiers and specifiers */
+ if (definition) {
+ if (found_func->body != NULL) {
+ slang_info_log_error(C->L, "%s: function already has a body.",
+ slang_atom_pool_id(C->atoms,
+ parsed_func.header.
+ a_name));
+ slang_function_destruct(&parsed_func);
+ return 0;
+ }
+
+ /* destroy the existing function declaration and replace it
+ * with the new one, remember to save the fixup table
+ */
+ parsed_func.fixups = found_func->fixups;
+ slang_fixup_table_init(&found_func->fixups);
+ slang_function_destruct(found_func);
+ *found_func = parsed_func;
+ }
+ else {
+ /* another declaration of the same function prototype - ignore it */
+ slang_function_destruct(&parsed_func);
+ }
+
+ /* return the found function */
+ *parsed_func_ret = found_func;
+ }
+
+ /* assemble the parsed function */
+ {
+ slang_assemble_ctx A;
+
+ A.file = O->assembly;
+ A.mach = O->machine;
+ A.atoms = C->atoms;
+ A.space.funcs = O->funs;
+ A.space.structs = O->structs;
+ A.space.vars = O->vars;
+ if (!_slang_assemble_function(&A, *parsed_func_ret))
+ return 0;
+ }
+ return 1;
}
/* declaration */
#define DECLARATION_FUNCTION_PROTOTYPE 1
#define DECLARATION_INIT_DECLARATOR_LIST 2
-static int parse_declaration (slang_parse_ctx *C, slang_output_ctx *O)
+static int
+parse_declaration(slang_parse_ctx * C, slang_output_ctx * O)
{
- switch (*C->I++)
- {
- case DECLARATION_INIT_DECLARATOR_LIST:
- if (!parse_init_declarator_list (C, O))
- return 0;
- break;
- case DECLARATION_FUNCTION_PROTOTYPE:
- {
- slang_function *dummy_func;
-
- if (!parse_function (C, O, 0, &dummy_func))
- return 0;
- }
- break;
- default:
- return 0;
- }
- return 1;
+ switch (*C->I++) {
+ case DECLARATION_INIT_DECLARATOR_LIST:
+ if (!parse_init_declarator_list(C, O))
+ return 0;
+ break;
+ case DECLARATION_FUNCTION_PROTOTYPE:
+ {
+ slang_function *dummy_func;
+
+ if (!parse_function(C, O, 0, &dummy_func))
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+ return 1;
}
/* external declaration */
#define EXTERNAL_DECLARATION 2
static GLboolean
-parse_code_unit (slang_parse_ctx *C, slang_code_unit *unit)
+parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit)
{
- slang_output_ctx o;
+ slang_output_ctx o;
/* setup output context */
o.funs = &unit->funs;
o.global_pool = &unit->object->varpool;
o.machine = &unit->object->machine;
- /* parse individual functions and declarations */
- while (*C->I != EXTERNAL_NULL)
- {
- switch (*C->I++)
- {
- case EXTERNAL_FUNCTION_DEFINITION:
- {
- slang_function *func;
-
- if (!parse_function (C, &o, 1, &func))
- return 0;
- }
- break;
- case EXTERNAL_DECLARATION:
- if (!parse_declaration (C, &o))
- return 0;
- break;
- default:
- return 0;
- }
- }
- C->I++;
- return 1;
+ /* parse individual functions and declarations */
+ while (*C->I != EXTERNAL_NULL) {
+ switch (*C->I++) {
+ case EXTERNAL_FUNCTION_DEFINITION:
+ {
+ slang_function *func;
+
+ if (!parse_function(C, &o, 1, &func))
+ return 0;
+ }
+ break;
+ case EXTERNAL_DECLARATION:
+ if (!parse_declaration(C, &o))
+ return 0;
+ break;
+ default:
+ return 0;
+ }
+ }
+ C->I++;
+ return 1;
}
static GLboolean
-compile_binary (const byte *prod, slang_code_unit *unit, slang_unit_type type,
- slang_info_log *infolog, slang_code_unit *builtin, slang_code_unit *downlink)
+compile_binary(const byte * prod, slang_code_unit * unit,
+ slang_unit_type type, slang_info_log * infolog,
+ slang_code_unit * builtin, slang_code_unit * downlink)
{
slang_parse_ctx C;
C.global_scope = GL_TRUE;
C.atoms = &unit->object->atompool;
- if (!check_revision (&C))
+ if (!check_revision(&C))
return GL_FALSE;
if (downlink != NULL) {
}
/* parse translation unit */
- return parse_code_unit (&C, unit);
+ return parse_code_unit(&C, unit);
}
static GLboolean
-compile_with_grammar (grammar id, const char *source, slang_code_unit *unit, slang_unit_type type,
- slang_info_log *infolog, slang_code_unit *builtin)
+compile_with_grammar(grammar id, const char *source, slang_code_unit * unit,
+ slang_unit_type type, slang_info_log * infolog,
+ slang_code_unit * builtin)
{
byte *prod;
GLuint size, start, version;
slang_string preprocessed;
/* First retrieve the version number. */
- if (!_slang_preprocess_version (source, &version, &start, infolog))
+ if (!_slang_preprocess_version(source, &version, &start, infolog))
return GL_FALSE;
if (version > 110) {
- slang_info_log_error (infolog, "language version specified is not supported.");
+ slang_info_log_error(infolog,
+ "language version specified is not supported.");
return GL_FALSE;
}
/* Now preprocess the source string. */
- slang_string_init (&preprocessed);
- if (!_slang_preprocess_directives (&preprocessed, &source[start], infolog)) {
- slang_string_free (&preprocessed);
- slang_info_log_error (infolog, "failed to preprocess the source.");
+ slang_string_init(&preprocessed);
+ if (!_slang_preprocess_directives(&preprocessed, &source[start], infolog)) {
+ slang_string_free(&preprocessed);
+ slang_info_log_error(infolog, "failed to preprocess the source.");
return GL_FALSE;
}
/* Finally check the syntax and generate its binary representation. */
- if (!grammar_fast_check (id, (const byte *) (slang_string_cstr (&preprocessed)), &prod, &size, 65536)) {
+ if (!grammar_fast_check
+ (id, (const byte *) (slang_string_cstr(&preprocessed)), &prod, &size,
+ 65536)) {
char buf[1024];
GLint pos;
- slang_string_free (&preprocessed);
- grammar_get_last_error ((byte *) (buf), sizeof (buf), &pos);
- slang_info_log_error (infolog, buf);
+ slang_string_free(&preprocessed);
+ grammar_get_last_error((byte *) (buf), sizeof(buf), &pos);
+ slang_info_log_error(infolog, buf);
return GL_FALSE;
}
- slang_string_free (&preprocessed);
+ slang_string_free(&preprocessed);
/* Syntax is okay - translate it to internal representation. */
- if (!compile_binary (prod, unit, type, infolog, builtin, &builtin[SLANG_BUILTIN_TOTAL - 1])) {
- grammar_alloc_free (prod);
+ if (!compile_binary
+ (prod, unit, type, infolog, builtin,
+ &builtin[SLANG_BUILTIN_TOTAL - 1])) {
+ grammar_alloc_free(prod);
return GL_FALSE;
}
- grammar_alloc_free (prod);
+ grammar_alloc_free(prod);
return GL_TRUE;
}
-static const char *slang_shader_syn =
+LONGSTRING static const char *slang_shader_syn =
#include "library/slang_shader_syn.h"
-;
+ ;
static const byte slang_core_gc[] = {
#include "library/slang_core_gc.h"
#endif
static GLboolean
-compile_object (grammar *id, const char *source, slang_code_object *object, slang_unit_type type,
- slang_info_log *infolog)
+compile_object(grammar * id, const char *source, slang_code_object * object,
+ slang_unit_type type, slang_info_log * infolog)
{
slang_code_unit *builtins = NULL;
/* load GLSL grammar */
- *id = grammar_load_from_text ((const byte *) (slang_shader_syn));
- if (*id == 0)
- {
- byte buf[1024];
- int pos;
-
- grammar_get_last_error (buf, 1024, &pos);
- slang_info_log_error (infolog, (const char *) (buf));
+ *id = grammar_load_from_text((const byte *) (slang_shader_syn));
+ if (*id == 0) {
+ byte buf[1024];
+ int pos;
+
+ grammar_get_last_error(buf, 1024, &pos);
+ slang_info_log_error(infolog, (const char *) (buf));
return GL_FALSE;
- }
-
- /* set shader type - the syntax is slightly different for different shaders */
- if (type == slang_unit_fragment_shader || type == slang_unit_fragment_builtin)
- grammar_set_reg8 (*id, (const byte *) "shader_type", 1);
- else
- grammar_set_reg8 (*id, (const byte *) "shader_type", 2);
-
- /* enable language extensions */
- grammar_set_reg8 (*id, (const byte *) "parsing_builtin", 1);
-
- /* if parsing user-specified shader, load built-in library */
- if (type == slang_unit_fragment_shader || type == slang_unit_vertex_shader)
- {
- /* compile core functionality first */
- if (!compile_binary (slang_core_gc, &object->builtin[SLANG_BUILTIN_CORE],
- slang_unit_fragment_builtin, infolog, NULL, NULL))
+ }
+
+ /* set shader type - the syntax is slightly different for different shaders */
+ if (type == slang_unit_fragment_shader
+ || type == slang_unit_fragment_builtin)
+ grammar_set_reg8(*id, (const byte *) "shader_type", 1);
+ else
+ grammar_set_reg8(*id, (const byte *) "shader_type", 2);
+
+ /* enable language extensions */
+ grammar_set_reg8(*id, (const byte *) "parsing_builtin", 1);
+
+ /* if parsing user-specified shader, load built-in library */
+ if (type == slang_unit_fragment_shader || type == slang_unit_vertex_shader) {
+ /* compile core functionality first */
+ if (!compile_binary(slang_core_gc, &object->builtin[SLANG_BUILTIN_CORE],
+ slang_unit_fragment_builtin, infolog, NULL, NULL))
return GL_FALSE;
- /* compile common functions and variables, link to core */
- if (!compile_binary (slang_common_builtin_gc, &object->builtin[SLANG_BUILTIN_COMMON],
- slang_unit_fragment_builtin, infolog, NULL,
- &object->builtin[SLANG_BUILTIN_CORE]))
+ /* compile common functions and variables, link to core */
+ if (!compile_binary
+ (slang_common_builtin_gc, &object->builtin[SLANG_BUILTIN_COMMON],
+ slang_unit_fragment_builtin, infolog, NULL,
+ &object->builtin[SLANG_BUILTIN_CORE]))
return GL_FALSE;
- /* compile target-specific functions and variables, link to common */
- if (type == slang_unit_fragment_shader)
- {
- if (!compile_binary (slang_fragment_builtin_gc, &object->builtin[SLANG_BUILTIN_TARGET],
- slang_unit_fragment_builtin, infolog, NULL,
- &object->builtin[SLANG_BUILTIN_COMMON]))
+ /* compile target-specific functions and variables, link to common */
+ if (type == slang_unit_fragment_shader) {
+ if (!compile_binary
+ (slang_fragment_builtin_gc,
+ &object->builtin[SLANG_BUILTIN_TARGET],
+ slang_unit_fragment_builtin, infolog, NULL,
+ &object->builtin[SLANG_BUILTIN_COMMON]))
return GL_FALSE;
- }
- else if (type == slang_unit_vertex_shader)
- {
- if (!compile_binary (slang_vertex_builtin_gc, &object->builtin[SLANG_BUILTIN_TARGET],
- slang_unit_vertex_builtin, infolog, NULL,
- &object->builtin[SLANG_BUILTIN_COMMON]))
+ }
+ else if (type == slang_unit_vertex_shader) {
+ if (!compile_binary
+ (slang_vertex_builtin_gc, &object->builtin[SLANG_BUILTIN_TARGET],
+ slang_unit_vertex_builtin, infolog, NULL,
+ &object->builtin[SLANG_BUILTIN_COMMON]))
return GL_FALSE;
- }
+ }
#if defined(USE_X86_ASM) || defined(SLANG_X86)
/* compile x86 4-component vector overrides, link to target */
- if (!compile_binary (slang_builtin_vec4_gc, &object->builtin[SLANG_BUILTIN_VEC4],
- slang_unit_fragment_builtin, infolog, NULL,
- &object->builtin[SLANG_BUILTIN_TARGET]))
+ if (!compile_binary
+ (slang_builtin_vec4_gc, &object->builtin[SLANG_BUILTIN_VEC4],
+ slang_unit_fragment_builtin, infolog, NULL,
+ &object->builtin[SLANG_BUILTIN_TARGET]))
return GL_FALSE;
#endif
- /* disable language extensions */
- grammar_set_reg8 (*id, (const byte *) "parsing_builtin", 0);
+ /* disable language extensions */
+ grammar_set_reg8(*id, (const byte *) "parsing_builtin", 0);
builtins = object->builtin;
- }
+ }
- /* compile the actual shader - pass-in built-in library for external shader */
- return compile_with_grammar (*id, source, &object->unit, type, infolog, builtins);
+ /* compile the actual shader - pass-in built-in library for external shader */
+ return compile_with_grammar(*id, source, &object->unit, type, infolog,
+ builtins);
}
GLboolean
-_slang_compile (const char *source, slang_code_object *object, slang_unit_type type,
- slang_info_log *infolog)
+_slang_compile(const char *source, slang_code_object * object,
+ slang_unit_type type, slang_info_log * infolog)
{
GLboolean success;
grammar id = 0;
- _slang_code_object_dtr (object);
- _slang_code_object_ctr (object);
+ _slang_code_object_dtr(object);
+ _slang_code_object_ctr(object);
- success = compile_object (&id, source, object, type, infolog);
+ success = compile_object(&id, source, object, type, infolog);
if (id != 0)
- grammar_destroy (id);
+ grammar_destroy(id);
if (!success)
return GL_FALSE;
- if (!_slang_build_export_data_table (&object->expdata, &object->unit.vars))
+ if (!_slang_build_export_data_table(&object->expdata, &object->unit.vars))
return GL_FALSE;
- if (!_slang_build_export_code_table (&object->expcode, &object->unit.funs, &object->unit))
+ if (!_slang_build_export_code_table
+ (&object->expcode, &object->unit.funs, &object->unit))
return GL_FALSE;
#if defined(USE_X86_ASM) || defined(SLANG_X86)
/* XXX: lookup the @main label */
- if (!_slang_x86_codegen (&object->machine, &object->assembly, object->expcode.entries[0].address))
+ if (!_slang_x86_codegen
+ (&object->machine, &object->assembly,
+ object->expcode.entries[0].address))
return GL_FALSE;
#endif
return GL_TRUE;
}
-
projects / mesa.git / commitdiff