81
_slang_code_object_ctr (slang_code_object *self)
86
_slang_code_object_ctr(slang_code_object * self)
85
90
for (i = 0; i < SLANG_BUILTIN_TOTAL; i++)
86
_slang_code_unit_ctr (&self->builtin[i], self);
87
_slang_code_unit_ctr (&self->unit, self);
88
_slang_assembly_file_ctr (&self->assembly);
89
slang_machine_ctr (&self->machine);
91
_slang_code_unit_ctr(&self->builtin[i], self);
92
_slang_code_unit_ctr(&self->unit, self);
93
_slang_assembly_file_ctr(&self->assembly);
94
slang_machine_ctr(&self->machine);
90
95
self->varpool.next_addr = 0;
91
slang_atom_pool_construct (&self->atompool);
92
slang_export_data_table_ctr (&self->expdata);
96
slang_atom_pool_construct(&self->atompool);
97
slang_export_data_table_ctr(&self->expdata);
93
98
self->expdata.atoms = &self->atompool;
94
slang_export_code_table_ctr (&self->expcode);
99
slang_export_code_table_ctr(&self->expcode);
95
100
self->expcode.atoms = &self->atompool;
99
_slang_code_object_dtr (slang_code_object *self)
104
_slang_code_object_dtr(slang_code_object * self)
103
108
for (i = 0; i < SLANG_BUILTIN_TOTAL; i++)
104
_slang_code_unit_dtr (&self->builtin[i]);
105
_slang_code_unit_dtr (&self->unit);
106
slang_assembly_file_destruct (&self->assembly);
107
slang_machine_dtr (&self->machine);
108
slang_atom_pool_destruct (&self->atompool);
109
slang_export_data_table_dtr (&self->expdata);
110
slang_export_code_table_ctr (&self->expcode);
109
_slang_code_unit_dtr(&self->builtin[i]);
110
_slang_code_unit_dtr(&self->unit);
111
slang_assembly_file_destruct(&self->assembly);
112
slang_machine_dtr(&self->machine);
113
slang_atom_pool_destruct(&self->atompool);
114
slang_export_data_table_dtr(&self->expdata);
115
slang_export_code_table_ctr(&self->expcode);
113
118
/* slang_info_log */
115
120
static char *out_of_memory = "Error: Out of memory.\n";
117
void slang_info_log_construct (slang_info_log *log)
120
log->dont_free_text = 0;
123
void slang_info_log_destruct (slang_info_log *log)
125
if (!log->dont_free_text)
126
slang_alloc_free (log->text);
129
static int slang_info_log_message (slang_info_log *log, const char *prefix, const char *msg)
123
slang_info_log_construct(slang_info_log * log)
126
log->dont_free_text = 0;
130
slang_info_log_destruct(slang_info_log * log)
132
if (!log->dont_free_text)
133
slang_alloc_free(log->text);
137
slang_info_log_message(slang_info_log * log, const char *prefix,
133
if (log->dont_free_text)
135
size = slang_string_length (msg) + 2;
142
if (log->dont_free_text)
144
size = slang_string_length(msg) + 2;
136
145
if (prefix != NULL)
137
size += slang_string_length (prefix) + 2;
146
size += slang_string_length(prefix) + 2;
138
147
if (log->text != NULL) {
139
GLuint old_len = slang_string_length (log->text);
140
log->text = (char *) (slang_alloc_realloc (log->text, old_len + 1, old_len + size));
148
GLuint old_len = slang_string_length(log->text);
150
slang_alloc_realloc(log->text, old_len + 1, old_len + size);
143
log->text = (char *) (slang_alloc_malloc (size));
153
log->text = (char *) (slang_alloc_malloc(size));
144
154
if (log->text != NULL)
145
155
log->text[0] = '\0';
147
if (log->text == NULL)
157
if (log->text == NULL)
149
159
if (prefix != NULL) {
150
slang_string_concat (log->text, prefix);
151
slang_string_concat (log->text, ": ");
153
slang_string_concat (log->text, msg);
154
slang_string_concat (log->text, "\n");
158
int slang_info_log_print (slang_info_log *log, const char *msg, ...)
164
_mesa_vsprintf (buf, msg, va);
166
return slang_info_log_message (log, NULL, buf);
169
int slang_info_log_error (slang_info_log *log, const char *msg, ...)
175
_mesa_vsprintf (buf, msg, va);
177
if (slang_info_log_message (log, "Error", buf))
179
slang_info_log_memory (log);
183
int slang_info_log_warning (slang_info_log *log, const char *msg, ...)
189
_mesa_vsprintf (buf, msg, va);
191
if (slang_info_log_message (log, "Warning", buf))
193
slang_info_log_memory (log);
197
void slang_info_log_memory (slang_info_log *log)
199
if (!slang_info_log_message (log, "Error", "Out of memory."))
201
log->dont_free_text = 1;
202
log->text = out_of_memory;
160
slang_string_concat(log->text, prefix);
161
slang_string_concat(log->text, ": ");
163
slang_string_concat(log->text, msg);
164
slang_string_concat(log->text, "\n");
169
slang_info_log_print(slang_info_log * log, const char *msg, ...)
175
_mesa_vsprintf(buf, msg, va);
177
return slang_info_log_message(log, NULL, buf);
181
slang_info_log_error(slang_info_log * log, const char *msg, ...)
187
_mesa_vsprintf(buf, msg, va);
189
if (slang_info_log_message(log, "Error", buf))
191
slang_info_log_memory(log);
196
slang_info_log_warning(slang_info_log * log, const char *msg, ...)
202
_mesa_vsprintf(buf, msg, va);
204
if (slang_info_log_message(log, "Warning", buf))
206
slang_info_log_memory(log);
211
slang_info_log_memory(slang_info_log * log)
213
if (!slang_info_log_message(log, "Error", "Out of memory.")) {
214
log->dont_free_text = 1;
215
log->text = out_of_memory;
206
219
/* slang_parse_ctx */
208
221
typedef struct slang_parse_ctx_
214
slang_atom_pool *atoms;
226
GLboolean global_scope; /**< Is object being declared a global? */
227
slang_atom_pool *atoms;
215
228
} slang_parse_ctx;
217
230
/* slang_output_ctx */
219
232
typedef struct slang_output_ctx_
221
slang_variable_scope *vars;
222
slang_function_scope *funs;
223
slang_struct_scope *structs;
224
slang_assembly_file *assembly;
225
slang_var_pool *global_pool;
226
slang_machine *machine;
234
slang_variable_scope *vars;
235
slang_function_scope *funs;
236
slang_struct_scope *structs;
237
slang_assembly_file *assembly;
238
slang_var_pool *global_pool;
239
slang_machine *machine;
227
240
} slang_output_ctx;
229
242
/* _slang_compile() */
231
static void parse_identifier_str (slang_parse_ctx *C, char **id)
234
C->I += _mesa_strlen (*id) + 1;
237
static slang_atom parse_identifier (slang_parse_ctx *C)
241
id = (const char *) C->I;
242
C->I += _mesa_strlen (id) + 1;
243
return slang_atom_pool_atom (C->atoms, id);
246
static int parse_number (slang_parse_ctx *C, int *number)
248
const int radix = (int) (*C->I++);
250
while (*C->I != '\0')
253
if (*C->I >= '0' && *C->I <= '9')
254
digit = (int) (*C->I - '0');
255
else if (*C->I >= 'A' && *C->I <= 'Z')
256
digit = (int) (*C->I - 'A') + 10;
258
digit = (int) (*C->I - 'a') + 10;
259
*number = *number * radix + digit;
264
slang_info_log_warning (C->L, "%d: literal integer overflow.", *number);
268
static int parse_float (slang_parse_ctx *C, float *number)
270
char *integral = NULL;
271
char *fractional = NULL;
272
char *exponent = NULL;
275
parse_identifier_str (C, &integral);
276
parse_identifier_str (C, &fractional);
277
parse_identifier_str (C, &exponent);
279
whole = (char *) (slang_alloc_malloc ((_mesa_strlen (integral) + _mesa_strlen (fractional) +
280
_mesa_strlen (exponent) + 3) * sizeof (char)));
283
slang_info_log_memory (C->L);
287
slang_string_copy (whole, integral);
288
slang_string_concat (whole, ".");
289
slang_string_concat (whole, fractional);
290
slang_string_concat (whole, "E");
291
slang_string_concat (whole, exponent);
293
*number = (float) (_mesa_strtod(whole, (char **)NULL));
295
slang_alloc_free (whole);
245
parse_identifier_str(slang_parse_ctx * C, char **id)
248
C->I += _mesa_strlen(*id) + 1;
252
parse_identifier(slang_parse_ctx * C)
256
id = (const char *) C->I;
257
C->I += _mesa_strlen(id) + 1;
258
return slang_atom_pool_atom(C->atoms, id);
262
parse_number(slang_parse_ctx * C, int *number)
264
const int radix = (int) (*C->I++);
266
while (*C->I != '\0') {
268
if (*C->I >= '0' && *C->I <= '9')
269
digit = (int) (*C->I - '0');
270
else if (*C->I >= 'A' && *C->I <= 'Z')
271
digit = (int) (*C->I - 'A') + 10;
273
digit = (int) (*C->I - 'a') + 10;
274
*number = *number * radix + digit;
279
slang_info_log_warning(C->L, "%d: literal integer overflow.", *number);
284
parse_float(slang_parse_ctx * C, float *number)
286
char *integral = NULL;
287
char *fractional = NULL;
288
char *exponent = NULL;
291
parse_identifier_str(C, &integral);
292
parse_identifier_str(C, &fractional);
293
parse_identifier_str(C, &exponent);
295
whole = (char *) (slang_alloc_malloc((_mesa_strlen(integral) +
296
_mesa_strlen(fractional) +
297
_mesa_strlen(exponent) + 3) * sizeof(char)));
299
slang_info_log_memory(C->L);
303
slang_string_copy(whole, integral);
304
slang_string_concat(whole, ".");
305
slang_string_concat(whole, fractional);
306
slang_string_concat(whole, "E");
307
slang_string_concat(whole, exponent);
309
*number = (float) (_mesa_strtod(whole, (char **) NULL));
311
slang_alloc_free(whole);
299
315
/* revision number - increment after each change affecting emitted output */
300
316
#define REVISION 3
302
static int check_revision (slang_parse_ctx *C)
304
if (*C->I != REVISION)
306
slang_info_log_error (C->L, "Internal compiler error.");
313
static int parse_statement (slang_parse_ctx *, slang_output_ctx *, slang_operation *);
314
static int parse_expression (slang_parse_ctx *, slang_output_ctx *, slang_operation *);
315
static int parse_type_specifier (slang_parse_ctx *, slang_output_ctx *, slang_type_specifier *);
317
static GLboolean parse_array_len (slang_parse_ctx *C, slang_output_ctx *O, GLuint *len)
319
slang_operation array_size;
320
slang_assembly_name_space space;
323
if (!slang_operation_construct (&array_size))
325
if (!parse_expression (C, O, &array_size))
327
slang_operation_destruct (&array_size);
331
space.funcs = O->funs;
332
space.structs = O->structs;
333
space.vars = O->vars;
334
result = _slang_evaluate_int (O->assembly, O->machine, &space, &array_size, len, C->atoms);
335
slang_operation_destruct (&array_size);
339
static GLboolean calculate_var_size (slang_parse_ctx *C, slang_output_ctx *O, slang_variable *var)
341
slang_storage_aggregate agg;
343
if (!slang_storage_aggregate_construct (&agg))
345
if (!_slang_aggregate_variable (&agg, &var->type.specifier, var->array_len, O->funs, O->structs,
346
O->vars, O->machine, O->assembly, C->atoms))
348
slang_storage_aggregate_destruct (&agg);
351
var->size = _slang_sizeof_aggregate (&agg);
352
slang_storage_aggregate_destruct (&agg);
356
static GLboolean convert_to_array (slang_parse_ctx *C, slang_variable *var,
357
const slang_type_specifier *sp)
359
/* sized array - mark it as array, copy the specifier to the array element and
360
* parse the expression */
361
var->type.specifier.type = slang_spec_array;
362
var->type.specifier._array = (slang_type_specifier *) slang_alloc_malloc (sizeof (
363
slang_type_specifier));
364
if (var->type.specifier._array == NULL)
366
slang_info_log_memory (C->L);
369
slang_type_specifier_ctr (var->type.specifier._array);
370
return slang_type_specifier_copy (var->type.specifier._array, sp);
319
check_revision(slang_parse_ctx * C)
321
if (*C->I != REVISION) {
322
slang_info_log_error(C->L, "Internal compiler error.");
329
static int parse_statement(slang_parse_ctx *, slang_output_ctx *,
331
static int parse_expression(slang_parse_ctx *, slang_output_ctx *,
333
static int parse_type_specifier(slang_parse_ctx *, slang_output_ctx *,
334
slang_type_specifier *);
337
parse_array_len(slang_parse_ctx * C, slang_output_ctx * O, GLuint * len)
339
slang_operation array_size;
340
slang_assembly_name_space space;
343
if (!slang_operation_construct(&array_size))
345
if (!parse_expression(C, O, &array_size)) {
346
slang_operation_destruct(&array_size);
350
space.funcs = O->funs;
351
space.structs = O->structs;
352
space.vars = O->vars;
353
result = _slang_evaluate_int(O->assembly, O->machine, &space,
354
&array_size, len, C->atoms);
355
slang_operation_destruct(&array_size);
360
calculate_var_size(slang_parse_ctx * C, slang_output_ctx * O,
361
slang_variable * var)
363
slang_storage_aggregate agg;
365
if (!slang_storage_aggregate_construct(&agg))
367
if (!_slang_aggregate_variable(&agg, &var->type.specifier, var->array_len,
368
O->funs, O->structs, O->vars, O->machine,
369
O->assembly, C->atoms)) {
370
slang_storage_aggregate_destruct(&agg);
373
var->size = _slang_sizeof_aggregate(&agg);
374
slang_storage_aggregate_destruct(&agg);
379
convert_to_array(slang_parse_ctx * C, slang_variable * var,
380
const slang_type_specifier * sp)
382
/* sized array - mark it as array, copy the specifier to the array element and
383
* parse the expression */
384
var->type.specifier.type = slang_spec_array;
385
var->type.specifier._array = (slang_type_specifier *)
386
slang_alloc_malloc(sizeof(slang_type_specifier));
387
if (var->type.specifier._array == NULL) {
388
slang_info_log_memory(C->L);
391
slang_type_specifier_ctr(var->type.specifier._array);
392
return slang_type_specifier_copy(var->type.specifier._array, sp);
373
395
/* structure field */
375
397
#define FIELD_NEXT 1
376
398
#define FIELD_ARRAY 2
378
static GLboolean parse_struct_field_var (slang_parse_ctx *C, slang_output_ctx *O, slang_variable *var,
379
const slang_type_specifier *sp)
381
var->a_name = parse_identifier (C);
382
if (var->a_name == SLANG_ATOM_NULL)
388
if (!slang_type_specifier_copy (&var->type.specifier, sp))
392
if (!convert_to_array (C, var, sp))
394
if (!parse_array_len (C, O, &var->array_len))
401
return calculate_var_size (C, O, var);
404
static int parse_struct_field (slang_parse_ctx *C, slang_output_ctx *O, slang_struct *st,
405
slang_type_specifier *sp)
407
slang_output_ctx o = *O;
409
o.structs = st->structs;
410
if (!parse_type_specifier (C, &o, sp))
416
st->fields->variables = (slang_variable *) slang_alloc_realloc (st->fields->variables,
417
st->fields->num_variables * sizeof (slang_variable),
418
(st->fields->num_variables + 1) * sizeof (slang_variable));
419
if (st->fields->variables == NULL)
421
slang_info_log_memory (C->L);
424
var = &st->fields->variables[st->fields->num_variables];
425
if (!slang_variable_construct (var))
427
st->fields->num_variables++;
428
if (!parse_struct_field_var (C, &o, var, sp))
431
while (*C->I++ != FIELD_NONE);
436
static int parse_struct (slang_parse_ctx *C, slang_output_ctx *O, slang_struct **st)
441
/* parse struct name (if any) and make sure it is unique in current scope */
442
a_name = parse_identifier (C);
443
if (a_name == SLANG_ATOM_NULL)
445
name = slang_atom_pool_id (C->atoms, a_name);
446
if (name[0] != '\0' && slang_struct_scope_find (O->structs, a_name, 0) != NULL)
448
slang_info_log_error (C->L, "%s: duplicate type name.", name);
452
/* set-up a new struct */
453
*st = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct));
456
slang_info_log_memory (C->L);
459
if (!slang_struct_construct (*st))
461
slang_alloc_free (*st);
463
slang_info_log_memory (C->L);
466
(**st).a_name = a_name;
467
(**st).structs->outer_scope = O->structs;
469
/* parse individual struct fields */
472
slang_type_specifier sp;
474
slang_type_specifier_ctr (&sp);
475
if (!parse_struct_field (C, O, *st, &sp))
477
slang_type_specifier_dtr (&sp);
480
slang_type_specifier_dtr (&sp);
482
while (*C->I++ != FIELD_NONE);
484
/* if named struct, copy it to current scope */
489
O->structs->structs = (slang_struct *) slang_alloc_realloc (O->structs->structs,
490
O->structs->num_structs * sizeof (slang_struct),
491
(O->structs->num_structs + 1) * sizeof (slang_struct));
492
if (O->structs->structs == NULL)
494
slang_info_log_memory (C->L);
497
s = &O->structs->structs[O->structs->num_structs];
498
if (!slang_struct_construct (s))
500
O->structs->num_structs++;
501
if (!slang_struct_copy (s, *st))
401
parse_struct_field_var(slang_parse_ctx * C, slang_output_ctx * O,
402
slang_variable * var, const slang_type_specifier * sp)
404
var->a_name = parse_identifier(C);
405
if (var->a_name == SLANG_ATOM_NULL)
410
if (!slang_type_specifier_copy(&var->type.specifier, sp))
414
if (!convert_to_array(C, var, sp))
416
if (!parse_array_len(C, O, &var->array_len))
423
return calculate_var_size(C, O, var);
427
parse_struct_field(slang_parse_ctx * C, slang_output_ctx * O,
428
slang_struct * st, slang_type_specifier * sp)
430
slang_output_ctx o = *O;
432
o.structs = st->structs;
433
if (!parse_type_specifier(C, &o, sp))
437
slang_variable *var = slang_variable_scope_grow(st->fields);
439
slang_info_log_memory(C->L);
442
if (!parse_struct_field_var(C, &o, var, sp))
445
while (*C->I++ != FIELD_NONE);
451
parse_struct(slang_parse_ctx * C, slang_output_ctx * O, slang_struct ** st)
456
/* parse struct name (if any) and make sure it is unique in current scope */
457
a_name = parse_identifier(C);
458
if (a_name == SLANG_ATOM_NULL)
461
name = slang_atom_pool_id(C->atoms, a_name);
463
&& slang_struct_scope_find(O->structs, a_name, 0) != NULL) {
464
slang_info_log_error(C->L, "%s: duplicate type name.", name);
468
/* set-up a new struct */
469
*st = (slang_struct *) slang_alloc_malloc(sizeof(slang_struct));
471
slang_info_log_memory(C->L);
474
if (!slang_struct_construct(*st)) {
475
slang_alloc_free(*st);
477
slang_info_log_memory(C->L);
480
(**st).a_name = a_name;
481
(**st).structs->outer_scope = O->structs;
483
/* parse individual struct fields */
485
slang_type_specifier sp;
487
slang_type_specifier_ctr(&sp);
488
if (!parse_struct_field(C, O, *st, &sp)) {
489
slang_type_specifier_dtr(&sp);
492
slang_type_specifier_dtr(&sp);
494
while (*C->I++ != FIELD_NONE);
496
/* if named struct, copy it to current scope */
497
if (name[0] != '\0') {
500
O->structs->structs =
501
(slang_struct *) slang_alloc_realloc(O->structs->structs,
502
O->structs->num_structs *
503
sizeof(slang_struct),
504
(O->structs->num_structs +
505
1) * sizeof(slang_struct));
506
if (O->structs->structs == NULL) {
507
slang_info_log_memory(C->L);
510
s = &O->structs->structs[O->structs->num_structs];
511
if (!slang_struct_construct(s))
513
O->structs->num_structs++;
514
if (!slang_struct_copy(s, *st))
508
522
/* type qualifier */
509
523
#define TYPE_QUALIFIER_NONE 0
571
585
#define TYPE_SPECIFIER_STRUCT 22
572
586
#define TYPE_SPECIFIER_TYPENAME 23
574
static int parse_type_specifier (slang_parse_ctx *C, slang_output_ctx *O, slang_type_specifier *spec)
589
parse_type_specifier(slang_parse_ctx * C, slang_output_ctx * O,
590
slang_type_specifier * spec)
578
case TYPE_SPECIFIER_VOID:
579
spec->type = slang_spec_void;
581
case TYPE_SPECIFIER_BOOL:
582
spec->type = slang_spec_bool;
584
case TYPE_SPECIFIER_BVEC2:
585
spec->type = slang_spec_bvec2;
587
case TYPE_SPECIFIER_BVEC3:
588
spec->type = slang_spec_bvec3;
590
case TYPE_SPECIFIER_BVEC4:
591
spec->type = slang_spec_bvec4;
593
case TYPE_SPECIFIER_INT:
594
spec->type = slang_spec_int;
596
case TYPE_SPECIFIER_IVEC2:
597
spec->type = slang_spec_ivec2;
599
case TYPE_SPECIFIER_IVEC3:
600
spec->type = slang_spec_ivec3;
602
case TYPE_SPECIFIER_IVEC4:
603
spec->type = slang_spec_ivec4;
605
case TYPE_SPECIFIER_FLOAT:
606
spec->type = slang_spec_float;
608
case TYPE_SPECIFIER_VEC2:
609
spec->type = slang_spec_vec2;
611
case TYPE_SPECIFIER_VEC3:
612
spec->type = slang_spec_vec3;
614
case TYPE_SPECIFIER_VEC4:
615
spec->type = slang_spec_vec4;
617
case TYPE_SPECIFIER_MAT2:
618
spec->type = slang_spec_mat2;
620
case TYPE_SPECIFIER_MAT3:
621
spec->type = slang_spec_mat3;
623
case TYPE_SPECIFIER_MAT4:
624
spec->type = slang_spec_mat4;
626
case TYPE_SPECIFIER_SAMPLER1D:
627
spec->type = slang_spec_sampler1D;
629
case TYPE_SPECIFIER_SAMPLER2D:
630
spec->type = slang_spec_sampler2D;
632
case TYPE_SPECIFIER_SAMPLER3D:
633
spec->type = slang_spec_sampler3D;
635
case TYPE_SPECIFIER_SAMPLERCUBE:
636
spec->type = slang_spec_samplerCube;
638
case TYPE_SPECIFIER_SAMPLER1DSHADOW:
639
spec->type = slang_spec_sampler1DShadow;
641
case TYPE_SPECIFIER_SAMPLER2DSHADOW:
642
spec->type = slang_spec_sampler2DShadow;
644
case TYPE_SPECIFIER_STRUCT:
645
spec->type = slang_spec_struct;
646
if (!parse_struct (C, O, &spec->_struct))
649
case TYPE_SPECIFIER_TYPENAME:
650
spec->type = slang_spec_struct;
655
a_name = parse_identifier (C);
659
stru = slang_struct_scope_find (O->structs, a_name, 1);
662
slang_info_log_error (C->L, "%s: undeclared type name.",
663
slang_atom_pool_id (C->atoms, a_name));
667
spec->_struct = (slang_struct *) slang_alloc_malloc (sizeof (slang_struct));
668
if (spec->_struct == NULL)
670
slang_info_log_memory (C->L);
673
if (!slang_struct_construct (spec->_struct))
675
slang_alloc_free (spec->_struct);
676
spec->_struct = NULL;
679
if (!slang_struct_copy (spec->_struct, stru))
593
case TYPE_SPECIFIER_VOID:
594
spec->type = slang_spec_void;
596
case TYPE_SPECIFIER_BOOL:
597
spec->type = slang_spec_bool;
599
case TYPE_SPECIFIER_BVEC2:
600
spec->type = slang_spec_bvec2;
602
case TYPE_SPECIFIER_BVEC3:
603
spec->type = slang_spec_bvec3;
605
case TYPE_SPECIFIER_BVEC4:
606
spec->type = slang_spec_bvec4;
608
case TYPE_SPECIFIER_INT:
609
spec->type = slang_spec_int;
611
case TYPE_SPECIFIER_IVEC2:
612
spec->type = slang_spec_ivec2;
614
case TYPE_SPECIFIER_IVEC3:
615
spec->type = slang_spec_ivec3;
617
case TYPE_SPECIFIER_IVEC4:
618
spec->type = slang_spec_ivec4;
620
case TYPE_SPECIFIER_FLOAT:
621
spec->type = slang_spec_float;
623
case TYPE_SPECIFIER_VEC2:
624
spec->type = slang_spec_vec2;
626
case TYPE_SPECIFIER_VEC3:
627
spec->type = slang_spec_vec3;
629
case TYPE_SPECIFIER_VEC4:
630
spec->type = slang_spec_vec4;
632
case TYPE_SPECIFIER_MAT2:
633
spec->type = slang_spec_mat2;
635
case TYPE_SPECIFIER_MAT3:
636
spec->type = slang_spec_mat3;
638
case TYPE_SPECIFIER_MAT4:
639
spec->type = slang_spec_mat4;
641
case TYPE_SPECIFIER_SAMPLER1D:
642
spec->type = slang_spec_sampler1D;
644
case TYPE_SPECIFIER_SAMPLER2D:
645
spec->type = slang_spec_sampler2D;
647
case TYPE_SPECIFIER_SAMPLER3D:
648
spec->type = slang_spec_sampler3D;
650
case TYPE_SPECIFIER_SAMPLERCUBE:
651
spec->type = slang_spec_samplerCube;
653
case TYPE_SPECIFIER_SAMPLER1DSHADOW:
654
spec->type = slang_spec_sampler1DShadow;
656
case TYPE_SPECIFIER_SAMPLER2DSHADOW:
657
spec->type = slang_spec_sampler2DShadow;
659
case TYPE_SPECIFIER_STRUCT:
660
spec->type = slang_spec_struct;
661
if (!parse_struct(C, O, &spec->_struct))
664
case TYPE_SPECIFIER_TYPENAME:
665
spec->type = slang_spec_struct;
670
a_name = parse_identifier(C);
674
stru = slang_struct_scope_find(O->structs, a_name, 1);
676
slang_info_log_error(C->L, "%s: undeclared type name.",
677
slang_atom_pool_id(C->atoms, a_name));
682
(slang_struct *) slang_alloc_malloc(sizeof(slang_struct));
683
if (spec->_struct == NULL) {
684
slang_info_log_memory(C->L);
687
if (!slang_struct_construct(spec->_struct)) {
688
slang_alloc_free(spec->_struct);
689
spec->_struct = NULL;
692
if (!slang_struct_copy(spec->_struct, stru))
689
static int parse_fully_specified_type (slang_parse_ctx *C, slang_output_ctx *O,
690
slang_fully_specified_type *type)
703
parse_fully_specified_type(slang_parse_ctx * C, slang_output_ctx * O,
704
slang_fully_specified_type * type)
692
if (!parse_type_qualifier (C, &type->qualifier))
694
return parse_type_specifier (C, O, &type->specifier);
706
if (!parse_type_qualifier(C, &type->qualifier))
708
return parse_type_specifier(C, O, &type->specifier);
758
772
#define OP_POSTINCREMENT 60
759
773
#define OP_POSTDECREMENT 61
761
static int parse_child_operation (slang_parse_ctx *C, slang_output_ctx *O, slang_operation *oper,
766
oper->children = (slang_operation *) slang_alloc_realloc (oper->children,
767
oper->num_children * sizeof (slang_operation),
768
(oper->num_children + 1) * sizeof (slang_operation));
769
if (oper->children == NULL)
771
slang_info_log_memory (C->L);
774
ch = &oper->children[oper->num_children];
775
if (!slang_operation_construct (ch))
777
slang_info_log_memory (C->L);
780
oper->num_children++;
782
return parse_statement (C, O, ch);
783
return parse_expression (C, O, ch);
786
static int parse_declaration (slang_parse_ctx *C, slang_output_ctx *O);
788
static int parse_statement (slang_parse_ctx *C, slang_output_ctx *O, slang_operation *oper)
790
oper->locals->outer_scope = O->vars;
793
case OP_BLOCK_BEGIN_NO_NEW_SCOPE:
794
/* parse child statements, do not create new variable scope */
795
oper->type = slang_oper_block_no_new_scope;
796
while (*C->I != OP_END)
797
if (!parse_child_operation (C, O, oper, 1))
801
case OP_BLOCK_BEGIN_NEW_SCOPE:
802
/* parse child statements, create new variable scope */
804
slang_output_ctx o = *O;
806
oper->type = slang_oper_block_new_scope;
807
o.vars = oper->locals;
808
while (*C->I != OP_END)
809
if (!parse_child_operation (C, &o, oper, 1))
815
/* local variable declaration, individual declarators are stored as children identifiers */
816
oper->type = slang_oper_variable_decl;
818
const unsigned int first_var = O->vars->num_variables;
820
/* parse the declaration, note that there can be zero or more than one declarators */
821
if (!parse_declaration (C, O))
823
if (first_var < O->vars->num_variables)
825
const unsigned int num_vars = O->vars->num_variables - first_var;
828
oper->children = (slang_operation *) slang_alloc_malloc (num_vars * sizeof (
830
if (oper->children == NULL)
832
slang_info_log_memory (C->L);
835
for (oper->num_children = 0; oper->num_children < num_vars; oper->num_children++)
836
if (!slang_operation_construct (&oper->children[oper->num_children]))
838
slang_info_log_memory (C->L);
841
for (i = first_var; i < O->vars->num_variables; i++)
843
slang_operation *o = &oper->children[i - first_var];
845
o->type = slang_oper_identifier;
846
o->locals->outer_scope = O->vars;
847
o->a_id = O->vars->variables[i].a_name;
853
/* the __asm statement, parse the mnemonic and all its arguments as expressions */
854
oper->type = slang_oper_asm;
855
oper->a_id = parse_identifier (C);
856
if (oper->a_id == SLANG_ATOM_NULL)
858
while (*C->I != OP_END)
859
if (!parse_child_operation (C, O, oper, 0))
864
oper->type = slang_oper_break;
867
oper->type = slang_oper_continue;
870
oper->type = slang_oper_discard;
873
oper->type = slang_oper_return;
874
if (!parse_child_operation (C, O, oper, 0))
878
oper->type = slang_oper_expression;
879
if (!parse_child_operation (C, O, oper, 0))
883
oper->type = slang_oper_if;
884
if (!parse_child_operation (C, O, oper, 0))
886
if (!parse_child_operation (C, O, oper, 1))
888
if (!parse_child_operation (C, O, oper, 1))
893
slang_output_ctx o = *O;
895
oper->type = slang_oper_while;
896
o.vars = oper->locals;
897
if (!parse_child_operation (C, &o, oper, 1))
899
if (!parse_child_operation (C, &o, oper, 1))
904
oper->type = slang_oper_do;
905
if (!parse_child_operation (C, O, oper, 1))
907
if (!parse_child_operation (C, O, oper, 0))
912
slang_output_ctx o = *O;
914
oper->type = slang_oper_for;
915
o.vars = oper->locals;
916
if (!parse_child_operation (C, &o, oper, 1))
918
if (!parse_child_operation (C, &o, oper, 1))
920
if (!parse_child_operation (C, &o, oper, 0))
922
if (!parse_child_operation (C, &o, oper, 1))
932
static int handle_nary_expression (slang_parse_ctx *C, slang_operation *op, slang_operation **ops,
933
unsigned int *total_ops, unsigned int n)
937
op->children = (slang_operation *) slang_alloc_malloc (n * sizeof (slang_operation));
938
if (op->children == NULL)
940
slang_info_log_memory (C->L);
943
op->num_children = n;
945
for (i = 0; i < n; i++)
946
op->children[i] = (*ops)[*total_ops - (n + 1 - i)];
947
(*ops)[*total_ops - (n + 1)] = (*ops)[*total_ops - 1];
950
*ops = (slang_operation *) slang_alloc_realloc (*ops, (*total_ops + n) * sizeof (slang_operation),
951
*total_ops * sizeof (slang_operation));
954
slang_info_log_memory (C->L);
960
static int is_constructor_name (const char *name, slang_atom a_name, slang_struct_scope *structs)
962
if (slang_type_specifier_type_from_string (name) != slang_spec_void)
964
return slang_struct_scope_find (structs, a_name, 1) != NULL;
967
static int parse_expression (slang_parse_ctx *C, slang_output_ctx *O, slang_operation *oper)
969
slang_operation *ops = NULL;
970
unsigned int num_ops = 0;
973
while (*C->I != OP_END)
976
const unsigned int op_code = *C->I++;
978
/* allocate default operation, becomes a no-op if not used */
979
ops = (slang_operation *) slang_alloc_realloc (ops,
980
num_ops * sizeof (slang_operation), (num_ops + 1) * sizeof (slang_operation));
983
slang_info_log_memory (C->L);
987
if (!slang_operation_construct (op))
989
slang_info_log_memory (C->L);
993
op->locals->outer_scope = O->vars;
998
op->type = slang_oper_void;
1001
op->type = slang_oper_literal_bool;
1002
if (!parse_number (C, &number))
1004
op->literal = (GLfloat) number;
1007
op->type = slang_oper_literal_int;
1008
if (!parse_number (C, &number))
1010
op->literal = (GLfloat) number;
1013
op->type = slang_oper_literal_float;
1014
if (!parse_float (C, &op->literal))
1017
case OP_PUSH_IDENTIFIER:
1018
op->type = slang_oper_identifier;
1019
op->a_id = parse_identifier (C);
1020
if (op->a_id == SLANG_ATOM_NULL)
1024
op->type = slang_oper_sequence;
1025
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1029
op->type = slang_oper_assign;
1030
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1034
op->type = slang_oper_addassign;
1035
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1039
op->type = slang_oper_subassign;
1040
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1044
op->type = slang_oper_mulassign;
1045
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1049
op->type = slang_oper_divassign;
1050
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1053
/*case OP_MODASSIGN:*/
1054
/*case OP_LSHASSIGN:*/
1055
/*case OP_RSHASSIGN:*/
1056
/*case OP_ORASSIGN:*/
1057
/*case OP_XORASSIGN:*/
1058
/*case OP_ANDASSIGN:*/
1060
op->type = slang_oper_select;
1061
if (!handle_nary_expression (C, op, &ops, &num_ops, 3))
1065
op->type = slang_oper_logicalor;
1066
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1070
op->type = slang_oper_logicalxor;
1071
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1075
op->type = slang_oper_logicaland;
1076
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1083
op->type = slang_oper_equal;
1084
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1088
op->type = slang_oper_notequal;
1089
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1093
op->type = slang_oper_less;
1094
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1098
op->type = slang_oper_greater;
1099
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1103
op->type = slang_oper_lessequal;
1104
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1107
case OP_GREATEREQUAL:
1108
op->type = slang_oper_greaterequal;
1109
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1115
op->type = slang_oper_add;
1116
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1120
op->type = slang_oper_subtract;
1121
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1125
op->type = slang_oper_multiply;
1126
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1130
op->type = slang_oper_divide;
1131
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1134
/*case OP_MODULUS:*/
1135
case OP_PREINCREMENT:
1136
op->type = slang_oper_preincrement;
1137
if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
1140
case OP_PREDECREMENT:
1141
op->type = slang_oper_predecrement;
1142
if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
1146
op->type = slang_oper_plus;
1147
if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
1151
op->type = slang_oper_minus;
1152
if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
1156
op->type = slang_oper_not;
1157
if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
1160
/*case OP_COMPLEMENT:*/
1162
op->type = slang_oper_subscript;
1163
if (!handle_nary_expression (C, op, &ops, &num_ops, 2))
1167
op->type = slang_oper_call;
1168
op->a_id = parse_identifier (C);
1169
if (op->a_id == SLANG_ATOM_NULL)
1171
while (*C->I != OP_END)
1172
if (!parse_child_operation (C, O, op, 0))
1175
if (!C->parsing_builtin && !slang_function_scope_find_by_name (O->funs, op->a_id, 1))
1179
id = slang_atom_pool_id (C->atoms, op->a_id);
1180
if (!is_constructor_name (id, op->a_id, O->structs))
1182
slang_info_log_error (C->L, "%s: undeclared function name.", id);
1188
op->type = slang_oper_field;
1189
op->a_id = parse_identifier (C);
1190
if (op->a_id == SLANG_ATOM_NULL)
1192
if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
1195
case OP_POSTINCREMENT:
1196
op->type = slang_oper_postincrement;
1197
if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
1200
case OP_POSTDECREMENT:
1201
op->type = slang_oper_postdecrement;
1202
if (!handle_nary_expression (C, op, &ops, &num_ops, 1))
1212
slang_alloc_free (ops);
777
* When parsing a compound production, this function is used to parse the
779
* For example, a a while-loop compound will have two children, the
780
* while condition expression and the loop body. So, this function will
781
* be called twice to parse those two sub-expressions.
782
* \param C the parsing context
783
* \param O the output context
784
* \param oper the operation we're parsing
785
* \param statment which child of the operation is being parsed
786
* \return 1 if success, 0 if error
789
parse_child_operation(slang_parse_ctx * C, slang_output_ctx * O,
790
slang_operation * oper, unsigned int statement)
794
/* grow child array */
795
oper->children = (slang_operation *)
796
slang_alloc_realloc(oper->children,
797
oper->num_children * sizeof(slang_operation),
798
(oper->num_children + 1) * sizeof(slang_operation));
799
if (oper->children == NULL) {
800
slang_info_log_memory(C->L);
804
ch = &oper->children[oper->num_children];
805
if (!slang_operation_construct(ch)) {
806
slang_info_log_memory(C->L);
809
oper->num_children++;
810
/* XXX I guess the 0th "statement" is not really a statement? */
812
return parse_statement(C, O, ch);
813
return parse_expression(C, O, ch);
816
static int parse_declaration(slang_parse_ctx * C, slang_output_ctx * O);
819
parse_statement(slang_parse_ctx * C, slang_output_ctx * O,
820
slang_operation * oper)
822
oper->locals->outer_scope = O->vars;
824
case OP_BLOCK_BEGIN_NO_NEW_SCOPE:
825
/* parse child statements, do not create new variable scope */
826
oper->type = slang_oper_block_no_new_scope;
827
while (*C->I != OP_END)
828
if (!parse_child_operation(C, O, oper, 1))
832
case OP_BLOCK_BEGIN_NEW_SCOPE:
833
/* parse child statements, create new variable scope */
835
slang_output_ctx o = *O;
837
oper->type = slang_oper_block_new_scope;
838
o.vars = oper->locals;
839
while (*C->I != OP_END)
840
if (!parse_child_operation(C, &o, oper, 1))
846
/* local variable declaration, individual declarators are stored as
847
* children identifiers
849
oper->type = slang_oper_variable_decl;
851
const unsigned int first_var = O->vars->num_variables;
853
/* parse the declaration, note that there can be zero or more
854
* than one declarators
856
if (!parse_declaration(C, O))
858
if (first_var < O->vars->num_variables) {
859
const unsigned int num_vars = O->vars->num_variables - first_var;
862
oper->children = (slang_operation *)
863
slang_alloc_malloc(num_vars * sizeof(slang_operation));
864
if (oper->children == NULL) {
865
slang_info_log_memory(C->L);
868
for (oper->num_children = 0; oper->num_children < num_vars;
869
oper->num_children++) {
870
if (!slang_operation_construct
871
(&oper->children[oper->num_children])) {
872
slang_info_log_memory(C->L);
876
for (i = first_var; i < O->vars->num_variables; i++) {
877
slang_operation *o = &oper->children[i - first_var];
878
o->type = slang_oper_identifier;
879
o->locals->outer_scope = O->vars;
880
o->a_id = O->vars->variables[i].a_name;
886
/* the __asm statement, parse the mnemonic and all its arguments
889
oper->type = slang_oper_asm;
890
oper->a_id = parse_identifier(C);
891
if (oper->a_id == SLANG_ATOM_NULL)
893
while (*C->I != OP_END) {
894
if (!parse_child_operation(C, O, oper, 0))
900
oper->type = slang_oper_break;
903
oper->type = slang_oper_continue;
906
oper->type = slang_oper_discard;
909
oper->type = slang_oper_return;
910
if (!parse_child_operation(C, O, oper, 0))
914
oper->type = slang_oper_expression;
915
if (!parse_child_operation(C, O, oper, 0))
919
oper->type = slang_oper_if;
920
if (!parse_child_operation(C, O, oper, 0))
922
if (!parse_child_operation(C, O, oper, 1))
924
if (!parse_child_operation(C, O, oper, 1))
929
slang_output_ctx o = *O;
931
oper->type = slang_oper_while;
932
o.vars = oper->locals;
933
if (!parse_child_operation(C, &o, oper, 1))
935
if (!parse_child_operation(C, &o, oper, 1))
940
oper->type = slang_oper_do;
941
if (!parse_child_operation(C, O, oper, 1))
943
if (!parse_child_operation(C, O, oper, 0))
948
slang_output_ctx o = *O;
950
oper->type = slang_oper_for;
951
o.vars = oper->locals;
952
if (!parse_child_operation(C, &o, oper, 1))
954
if (!parse_child_operation(C, &o, oper, 1))
956
if (!parse_child_operation(C, &o, oper, 0))
958
if (!parse_child_operation(C, &o, oper, 1))
969
handle_nary_expression(slang_parse_ctx * C, slang_operation * op,
970
slang_operation ** ops, unsigned int *total_ops,
976
(slang_operation *) slang_alloc_malloc(n * sizeof(slang_operation));
977
if (op->children == NULL) {
978
slang_info_log_memory(C->L);
981
op->num_children = n;
983
for (i = 0; i < n; i++)
984
op->children[i] = (*ops)[*total_ops - (n + 1 - i)];
985
(*ops)[*total_ops - (n + 1)] = (*ops)[*total_ops - 1];
988
*ops = (slang_operation *)
989
slang_alloc_realloc(*ops,
990
(*total_ops + n) * sizeof(slang_operation),
991
*total_ops * sizeof(slang_operation));
993
slang_info_log_memory(C->L);
1000
is_constructor_name(const char *name, slang_atom a_name,
1001
slang_struct_scope * structs)
1003
if (slang_type_specifier_type_from_string(name) != slang_spec_void)
1005
return slang_struct_scope_find(structs, a_name, 1) != NULL;
1009
parse_expression(slang_parse_ctx * C, slang_output_ctx * O,
1010
slang_operation * oper)
1012
slang_operation *ops = NULL;
1013
unsigned int num_ops = 0;
1016
while (*C->I != OP_END) {
1017
slang_operation *op;
1018
const unsigned int op_code = *C->I++;
1020
/* allocate default operation, becomes a no-op if not used */
1021
ops = (slang_operation *)
1022
slang_alloc_realloc(ops,
1023
num_ops * sizeof(slang_operation),
1024
(num_ops + 1) * sizeof(slang_operation));
1026
slang_info_log_memory(C->L);
1030
if (!slang_operation_construct(op)) {
1031
slang_info_log_memory(C->L);
1035
op->locals->outer_scope = O->vars;
1039
op->type = slang_oper_void;
1042
op->type = slang_oper_literal_bool;
1043
if (!parse_number(C, &number))
1045
op->literal = (GLfloat) number;
1048
op->type = slang_oper_literal_int;
1049
if (!parse_number(C, &number))
1051
op->literal = (GLfloat) number;
1054
op->type = slang_oper_literal_float;
1055
if (!parse_float(C, &op->literal))
1058
case OP_PUSH_IDENTIFIER:
1059
op->type = slang_oper_identifier;
1060
op->a_id = parse_identifier(C);
1061
if (op->a_id == SLANG_ATOM_NULL)
1065
op->type = slang_oper_sequence;
1066
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1070
op->type = slang_oper_assign;
1071
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1075
op->type = slang_oper_addassign;
1076
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1080
op->type = slang_oper_subassign;
1081
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1085
op->type = slang_oper_mulassign;
1086
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1090
op->type = slang_oper_divassign;
1091
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1094
/*case OP_MODASSIGN: */
1095
/*case OP_LSHASSIGN: */
1096
/*case OP_RSHASSIGN: */
1097
/*case OP_ORASSIGN: */
1098
/*case OP_XORASSIGN: */
1099
/*case OP_ANDASSIGN: */
1101
op->type = slang_oper_select;
1102
if (!handle_nary_expression(C, op, &ops, &num_ops, 3))
1106
op->type = slang_oper_logicalor;
1107
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1111
op->type = slang_oper_logicalxor;
1112
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1116
op->type = slang_oper_logicaland;
1117
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1121
/*case OP_BITXOR: */
1122
/*case OP_BITAND: */
1124
op->type = slang_oper_equal;
1125
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1129
op->type = slang_oper_notequal;
1130
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1134
op->type = slang_oper_less;
1135
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1139
op->type = slang_oper_greater;
1140
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1144
op->type = slang_oper_lessequal;
1145
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1148
case OP_GREATEREQUAL:
1149
op->type = slang_oper_greaterequal;
1150
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1153
/*case OP_LSHIFT: */
1154
/*case OP_RSHIFT: */
1156
op->type = slang_oper_add;
1157
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1161
op->type = slang_oper_subtract;
1162
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1166
op->type = slang_oper_multiply;
1167
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1171
op->type = slang_oper_divide;
1172
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1175
/*case OP_MODULUS: */
1176
case OP_PREINCREMENT:
1177
op->type = slang_oper_preincrement;
1178
if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
1181
case OP_PREDECREMENT:
1182
op->type = slang_oper_predecrement;
1183
if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
1187
op->type = slang_oper_plus;
1188
if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
1192
op->type = slang_oper_minus;
1193
if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
1197
op->type = slang_oper_not;
1198
if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
1201
/*case OP_COMPLEMENT: */
1203
op->type = slang_oper_subscript;
1204
if (!handle_nary_expression(C, op, &ops, &num_ops, 2))
1208
op->type = slang_oper_call;
1209
op->a_id = parse_identifier(C);
1210
if (op->a_id == SLANG_ATOM_NULL)
1212
while (*C->I != OP_END)
1213
if (!parse_child_operation(C, O, op, 0))
1217
if (!C->parsing_builtin
1218
&& !slang_function_scope_find_by_name(O->funs, op->a_id, 1)) {
1221
id = slang_atom_pool_id(C->atoms, op->a_id);
1222
if (!is_constructor_name(id, op->a_id, O->structs)) {
1223
slang_info_log_error(C->L, "%s: undeclared function name.", id);
1229
op->type = slang_oper_field;
1230
op->a_id = parse_identifier(C);
1231
if (op->a_id == SLANG_ATOM_NULL)
1233
if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
1236
case OP_POSTINCREMENT:
1237
op->type = slang_oper_postincrement;
1238
if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
1241
case OP_POSTDECREMENT:
1242
op->type = slang_oper_postdecrement;
1243
if (!handle_nary_expression(C, op, &ops, &num_ops, 1))
1253
slang_alloc_free(ops);
1216
1258
/* parameter qualifier */
1336
1376
/*#define OPERATOR_COMPLEMENT 28*/
1337
1377
#define OPERATOR_NOT 29
1339
static const struct {
1340
unsigned int o_code;
1381
unsigned int o_code;
1342
1383
} operator_names[] = {
1343
{ OPERATOR_INCREMENT, "++" },
1344
{ OPERATOR_ADDASSIGN, "+=" },
1345
{ OPERATOR_PLUS, "+" },
1346
{ OPERATOR_DECREMENT, "--" },
1347
{ OPERATOR_SUBASSIGN, "-=" },
1348
{ OPERATOR_MINUS, "-" },
1349
{ OPERATOR_NOT, "!" },
1350
{ OPERATOR_MULASSIGN, "*=" },
1351
{ OPERATOR_MULTIPLY, "*" },
1352
{ OPERATOR_DIVASSIGN, "/=" },
1353
{ OPERATOR_DIVIDE, "/" },
1354
{ OPERATOR_LESSEQUAL, "<=" },
1355
/*{ OPERATOR_LSHASSIGN, "<<=" },*/
1356
/*{ OPERATOR_LSHIFT, "<<" },*/
1357
{ OPERATOR_LESS, "<" },
1358
{ OPERATOR_GREATEREQUAL, ">=" },
1359
/*{ OPERATOR_RSHASSIGN, ">>=" },*/
1360
/*{ OPERATOR_RSHIFT, ">>" },*/
1361
{ OPERATOR_GREATER, ">" },
1362
/*{ OPERATOR_MODASSIGN, "%=" },*/
1363
/*{ OPERATOR_MODULUS, "%" },*/
1364
/*{ OPERATOR_ANDASSIGN, "&=" },*/
1365
/*{ OPERATOR_BITAND, "&" },*/
1366
/*{ OPERATOR_ORASSIGN, "|=" },*/
1367
/*{ OPERATOR_BITOR, "|" },*/
1368
/*{ OPERATOR_COMPLEMENT, "~" },*/
1369
/*{ OPERATOR_XORASSIGN, "^=" },*/
1370
{ OPERATOR_LOGICALXOR, "^^" },
1371
/*{ OPERATOR_BITXOR, "^" }*/
1384
{OPERATOR_INCREMENT, "++"},
1385
{OPERATOR_ADDASSIGN, "+="},
1386
{OPERATOR_PLUS, "+"},
1387
{OPERATOR_DECREMENT, "--"},
1388
{OPERATOR_SUBASSIGN, "-="},
1389
{OPERATOR_MINUS, "-"},
1390
{OPERATOR_NOT, "!"},
1391
{OPERATOR_MULASSIGN, "*="},
1392
{OPERATOR_MULTIPLY, "*"},
1393
{OPERATOR_DIVASSIGN, "/="},
1394
{OPERATOR_DIVIDE, "/"},
1395
{OPERATOR_LESSEQUAL, "<="},
1396
/*{ OPERATOR_LSHASSIGN, "<<=" }, */
1397
/*{ OPERATOR_LSHIFT, "<<" }, */
1398
{OPERATOR_LESS, "<"},
1399
{OPERATOR_GREATEREQUAL, ">="},
1400
/*{ OPERATOR_RSHASSIGN, ">>=" }, */
1401
/*{ OPERATOR_RSHIFT, ">>" }, */
1402
{OPERATOR_GREATER, ">"},
1403
/*{ OPERATOR_MODASSIGN, "%=" }, */
1404
/*{ OPERATOR_MODULUS, "%" }, */
1405
/*{ OPERATOR_ANDASSIGN, "&=" }, */
1406
/*{ OPERATOR_BITAND, "&" }, */
1407
/*{ OPERATOR_ORASSIGN, "|=" }, */
1408
/*{ OPERATOR_BITOR, "|" }, */
1409
/*{ OPERATOR_COMPLEMENT, "~" }, */
1410
/*{ OPERATOR_XORASSIGN, "^=" }, */
1411
{OPERATOR_LOGICALXOR, "^^"},
1412
/*{ OPERATOR_BITXOR, "^" } */
1374
static slang_atom parse_operator_name (slang_parse_ctx *C)
1378
for (i = 0; i < sizeof (operator_names) / sizeof (*operator_names); i++)
1380
if (operator_names[i].o_code == (unsigned int) (*C->I))
1382
slang_atom atom = slang_atom_pool_atom (C->atoms, operator_names[i].o_name);
1383
if (atom == SLANG_ATOM_NULL)
1385
slang_info_log_memory (C->L);
1395
static int parse_function_prototype (slang_parse_ctx *C, slang_output_ctx *O, slang_function *func)
1397
/* parse function type and name */
1398
if (!parse_fully_specified_type (C, O, &func->header.type))
1402
case FUNCTION_ORDINARY:
1403
func->kind = slang_func_ordinary;
1404
func->header.a_name = parse_identifier (C);
1405
if (func->header.a_name == SLANG_ATOM_NULL)
1408
case FUNCTION_CONSTRUCTOR:
1409
func->kind = slang_func_constructor;
1410
if (func->header.type.specifier.type == slang_spec_struct)
1412
func->header.a_name = slang_atom_pool_atom (C->atoms,
1413
slang_type_specifier_type_to_string (func->header.type.specifier.type));
1414
if (func->header.a_name == SLANG_ATOM_NULL)
1416
slang_info_log_memory (C->L);
1420
case FUNCTION_OPERATOR:
1421
func->kind = slang_func_operator;
1422
func->header.a_name = parse_operator_name (C);
1423
if (func->header.a_name == SLANG_ATOM_NULL)
1430
/* parse function parameters */
1431
while (*C->I++ == PARAMETER_NEXT)
1435
func->parameters->variables = (slang_variable *) slang_alloc_realloc (
1436
func->parameters->variables,
1437
func->parameters->num_variables * sizeof (slang_variable),
1438
(func->parameters->num_variables + 1) * sizeof (slang_variable));
1439
if (func->parameters->variables == NULL)
1441
slang_info_log_memory (C->L);
1444
p = &func->parameters->variables[func->parameters->num_variables];
1445
if (!slang_variable_construct (p))
1447
func->parameters->num_variables++;
1448
if (!parse_parameter_declaration (C, O, p))
1452
/* function formal parameters and local variables share the same scope, so save
1453
* the information about param count in a seperate place
1454
* also link the scope to the global variable scope so when a given identifier is not
1455
* found here, the search process continues in the global space */
1456
func->param_count = func->parameters->num_variables;
1457
func->parameters->outer_scope = O->vars;
1461
static int parse_function_definition (slang_parse_ctx *C, slang_output_ctx *O, slang_function *func)
1463
slang_output_ctx o = *O;
1465
if (!parse_function_prototype (C, O, func))
1468
/* create function's body operation */
1469
func->body = (slang_operation *) slang_alloc_malloc (sizeof (slang_operation));
1470
if (func->body == NULL)
1472
slang_info_log_memory (C->L);
1475
if (!slang_operation_construct (func->body))
1477
slang_alloc_free (func->body);
1479
slang_info_log_memory (C->L);
1483
/* to parse the body the parse context is modified in order to capture parsed variables
1484
* into function's local variable scope */
1485
C->global_scope = 0;
1486
o.vars = func->parameters;
1487
if (!parse_statement (C, &o, func->body))
1489
C->global_scope = 1;
1493
static GLboolean initialize_global (slang_assemble_ctx *A, slang_variable *var)
1495
slang_assembly_file_restore_point point;
1497
slang_assembly_local_info save_local = A->local;
1498
slang_operation op_id, op_assign;
1501
/* save the current assembly */
1502
if (!slang_assembly_file_restore_point_save (A->file, &point))
1505
/* setup the machine */
1507
mach.ip = A->file->count;
1509
/* allocate local storage for expression */
1510
A->local.ret_size = 0;
1511
A->local.addr_tmp = 0;
1512
A->local.swizzle_tmp = 4;
1513
if (!slang_assembly_file_push_label (A->file, slang_asm_local_alloc, 20))
1515
if (!slang_assembly_file_push_label (A->file, slang_asm_enter, 20))
1518
/* construct the left side of assignment */
1519
if (!slang_operation_construct (&op_id))
1521
op_id.type = slang_oper_identifier;
1522
op_id.a_id = var->a_name;
1524
/* put the variable into operation's scope */
1525
op_id.locals->variables = (slang_variable *) slang_alloc_malloc (sizeof (slang_variable));
1526
if (op_id.locals->variables == NULL)
1528
slang_operation_destruct (&op_id);
1531
op_id.locals->num_variables = 1;
1532
op_id.locals->variables[0] = *var;
1534
/* construct the assignment expression */
1535
if (!slang_operation_construct (&op_assign))
1537
op_id.locals->num_variables = 0;
1538
slang_operation_destruct (&op_id);
1541
op_assign.type = slang_oper_assign;
1542
op_assign.children = (slang_operation *) slang_alloc_malloc (2 * sizeof (slang_operation));
1543
if (op_assign.children == NULL)
1545
slang_operation_destruct (&op_assign);
1546
op_id.locals->num_variables = 0;
1547
slang_operation_destruct (&op_id);
1550
op_assign.num_children = 2;
1551
op_assign.children[0] = op_id;
1552
op_assign.children[1] = *var->initializer;
1554
/* insert the actual expression */
1555
result = _slang_assemble_operation (A, &op_assign, slang_ref_forbid);
1557
/* carefully destroy the operations */
1558
op_assign.num_children = 0;
1559
slang_alloc_free (op_assign.children);
1560
op_assign.children = NULL;
1561
slang_operation_destruct (&op_assign);
1562
op_id.locals->num_variables = 0;
1563
slang_operation_destruct (&op_id);
1567
if (!slang_assembly_file_push (A->file, slang_asm_exit))
1570
/* execute the expression */
1571
if (!_slang_execute2 (A->file, &mach))
1574
/* restore the old assembly */
1575
if (!slang_assembly_file_restore_point_load (A->file, &point))
1577
A->local = save_local;
1579
/* now we copy the contents of the initialized variable back to the original machine */
1580
_mesa_memcpy ((GLubyte *) A->mach->mem + var->address, (GLubyte *) mach.mem + var->address,
1416
parse_operator_name(slang_parse_ctx * C)
1420
for (i = 0; i < sizeof(operator_names) / sizeof(*operator_names); i++) {
1421
if (operator_names[i].o_code == (unsigned int) (*C->I)) {
1423
slang_atom_pool_atom(C->atoms, operator_names[i].o_name);
1424
if (atom == SLANG_ATOM_NULL) {
1425
slang_info_log_memory(C->L);
1436
parse_function_prototype(slang_parse_ctx * C, slang_output_ctx * O,
1437
slang_function * func)
1439
/* parse function type and name */
1440
if (!parse_fully_specified_type(C, O, &func->header.type))
1443
case FUNCTION_ORDINARY:
1444
func->kind = slang_func_ordinary;
1445
func->header.a_name = parse_identifier(C);
1446
if (func->header.a_name == SLANG_ATOM_NULL)
1449
case FUNCTION_CONSTRUCTOR:
1450
func->kind = slang_func_constructor;
1451
if (func->header.type.specifier.type == slang_spec_struct)
1453
func->header.a_name =
1454
slang_atom_pool_atom(C->atoms,
1455
slang_type_specifier_type_to_string
1456
(func->header.type.specifier.type));
1457
if (func->header.a_name == SLANG_ATOM_NULL) {
1458
slang_info_log_memory(C->L);
1462
case FUNCTION_OPERATOR:
1463
func->kind = slang_func_operator;
1464
func->header.a_name = parse_operator_name(C);
1465
if (func->header.a_name == SLANG_ATOM_NULL)
1472
/* parse function parameters */
1473
while (*C->I++ == PARAMETER_NEXT) {
1474
slang_variable *p = slang_variable_scope_grow(func->parameters);
1476
slang_info_log_memory(C->L);
1479
if (!parse_parameter_declaration(C, O, p))
1483
/* function formal parameters and local variables share the same
1484
* scope, so save the information about param count in a seperate
1485
* place also link the scope to the global variable scope so when a
1486
* given identifier is not found here, the search process continues
1487
* in the global space
1489
func->param_count = func->parameters->num_variables;
1490
func->parameters->outer_scope = O->vars;
1495
parse_function_definition(slang_parse_ctx * C, slang_output_ctx * O,
1496
slang_function * func)
1498
slang_output_ctx o = *O;
1500
if (!parse_function_prototype(C, O, func))
1503
/* create function's body operation */
1505
(slang_operation *) slang_alloc_malloc(sizeof(slang_operation));
1506
if (func->body == NULL) {
1507
slang_info_log_memory(C->L);
1510
if (!slang_operation_construct(func->body)) {
1511
slang_alloc_free(func->body);
1513
slang_info_log_memory(C->L);
1517
/* to parse the body the parse context is modified in order to
1518
* capture parsed variables into function's local variable scope
1520
C->global_scope = GL_FALSE;
1521
o.vars = func->parameters;
1522
if (!parse_statement(C, &o, func->body))
1525
C->global_scope = GL_TRUE;
1530
initialize_global(slang_assemble_ctx * A, slang_variable * var)
1532
slang_assembly_file_restore_point point;
1534
slang_assembly_local_info save_local = A->local;
1535
slang_operation op_id, op_assign;
1538
/* save the current assembly */
1539
if (!slang_assembly_file_restore_point_save(A->file, &point))
1542
/* setup the machine */
1544
mach.ip = A->file->count;
1546
/* allocate local storage for expression */
1547
A->local.ret_size = 0;
1548
A->local.addr_tmp = 0;
1549
A->local.swizzle_tmp = 4;
1550
if (!slang_assembly_file_push_label(A->file, slang_asm_local_alloc, 20))
1552
if (!slang_assembly_file_push_label(A->file, slang_asm_enter, 20))
1555
/* construct the left side of assignment */
1556
if (!slang_operation_construct(&op_id))
1558
op_id.type = slang_oper_identifier;
1559
op_id.a_id = var->a_name;
1561
/* put the variable into operation's scope */
1562
op_id.locals->variables =
1563
(slang_variable *) slang_alloc_malloc(sizeof(slang_variable));
1564
if (op_id.locals->variables == NULL) {
1565
slang_operation_destruct(&op_id);
1568
op_id.locals->num_variables = 1;
1569
op_id.locals->variables[0] = *var;
1571
/* construct the assignment expression */
1572
if (!slang_operation_construct(&op_assign)) {
1573
op_id.locals->num_variables = 0;
1574
slang_operation_destruct(&op_id);
1577
op_assign.type = slang_oper_assign;
1578
op_assign.children =
1579
(slang_operation *) slang_alloc_malloc(2 * sizeof(slang_operation));
1580
if (op_assign.children == NULL) {
1581
slang_operation_destruct(&op_assign);
1582
op_id.locals->num_variables = 0;
1583
slang_operation_destruct(&op_id);
1586
op_assign.num_children = 2;
1587
op_assign.children[0] = op_id;
1588
op_assign.children[1] = *var->initializer;
1590
/* insert the actual expression */
1591
result = _slang_assemble_operation(A, &op_assign, slang_ref_forbid);
1593
/* carefully destroy the operations */
1594
op_assign.num_children = 0;
1595
slang_alloc_free(op_assign.children);
1596
op_assign.children = NULL;
1597
slang_operation_destruct(&op_assign);
1598
op_id.locals->num_variables = 0;
1599
slang_operation_destruct(&op_id);
1603
if (!slang_assembly_file_push(A->file, slang_asm_exit))
1606
/* execute the expression */
1607
if (!_slang_execute2(A->file, &mach))
1610
/* restore the old assembly */
1611
if (!slang_assembly_file_restore_point_load(A->file, &point))
1613
A->local = save_local;
1615
/* now we copy the contents of the initialized variable back to the original machine */
1616
_mesa_memcpy((GLubyte *) A->mach->mem + var->address,
1617
(GLubyte *) mach.mem + var->address, var->size);
1586
1622
/* init declarator list */
1687
1722
A.space.funcs = O->funs;
1688
1723
A.space.structs = O->structs;
1689
1724
A.space.vars = O->vars;
1690
if (!initialize_global (&A, var))
1694
_mesa_memset ((GLubyte *) (O->machine->mem) + var->address, 0, var->size);
1700
static int parse_init_declarator_list (slang_parse_ctx *C, slang_output_ctx *O)
1702
slang_fully_specified_type type;
1704
/* parse the fully specified type, common to all declarators */
1705
if (!slang_fully_specified_type_construct (&type))
1707
if (!parse_fully_specified_type (C, O, &type))
1709
slang_fully_specified_type_destruct (&type);
1713
/* parse declarators, pass-in the parsed type */
1716
if (!parse_init_declarator (C, O, &type))
1718
slang_fully_specified_type_destruct (&type);
1722
while (*C->I++ == DECLARATOR_NEXT);
1724
slang_fully_specified_type_destruct (&type);
1728
static int parse_function (slang_parse_ctx *C, slang_output_ctx *O, int definition,
1729
slang_function **parsed_func_ret)
1731
slang_function parsed_func, *found_func;
1733
/* parse function definition/declaration */
1734
if (!slang_function_construct (&parsed_func))
1738
if (!parse_function_definition (C, O, &parsed_func))
1740
slang_function_destruct (&parsed_func);
1746
if (!parse_function_prototype (C, O, &parsed_func))
1748
slang_function_destruct (&parsed_func);
1753
/* find a function with a prototype matching the parsed one - only the current scope
1754
* is being searched to allow built-in function overriding */
1755
found_func = slang_function_scope_find (O->funs, &parsed_func, 0);
1756
if (found_func == NULL)
1758
/* add the parsed function to the function list */
1759
O->funs->functions = (slang_function *) slang_alloc_realloc (O->funs->functions,
1760
O->funs->num_functions * sizeof (slang_function),
1761
(O->funs->num_functions + 1) * sizeof (slang_function));
1762
if (O->funs->functions == NULL)
1764
slang_info_log_memory (C->L);
1765
slang_function_destruct (&parsed_func);
1768
O->funs->functions[O->funs->num_functions] = parsed_func;
1769
O->funs->num_functions++;
1771
/* return the newly parsed function */
1772
*parsed_func_ret = &O->funs->functions[O->funs->num_functions - 1];
1776
/* TODO: check function return type qualifiers and specifiers */
1779
if (found_func->body != NULL)
1781
slang_info_log_error (C->L, "%s: function already has a body.",
1782
slang_atom_pool_id (C->atoms, parsed_func.header.a_name));
1783
slang_function_destruct (&parsed_func);
1787
/* destroy the existing function declaration and replace it with the new one,
1788
* remember to save the fixup table */
1789
parsed_func.fixups = found_func->fixups;
1790
slang_fixup_table_init (&found_func->fixups);
1791
slang_function_destruct (found_func);
1792
*found_func = parsed_func;
1796
/* another declaration of the same function prototype - ignore it */
1797
slang_function_destruct (&parsed_func);
1800
/* return the found function */
1801
*parsed_func_ret = found_func;
1804
/* assemble the parsed function */
1806
slang_assemble_ctx A;
1808
A.file = O->assembly;
1809
A.mach = O->machine;
1811
A.space.funcs = O->funs;
1812
A.space.structs = O->structs;
1813
A.space.vars = O->vars;
1814
if (!_slang_assemble_function (&A, *parsed_func_ret))
1725
if (!initialize_global(&A, var))
1729
_mesa_memset((GLubyte *) (O->machine->mem) + var->address, 0,
1737
* Parse a list of variable declarations. Each variable may have an
1741
parse_init_declarator_list(slang_parse_ctx * C, slang_output_ctx * O)
1743
slang_fully_specified_type type;
1745
/* parse the fully specified type, common to all declarators */
1746
if (!slang_fully_specified_type_construct(&type))
1748
if (!parse_fully_specified_type(C, O, &type)) {
1749
slang_fully_specified_type_destruct(&type);
1753
/* parse declarators, pass-in the parsed type */
1755
if (!parse_init_declarator(C, O, &type)) {
1756
slang_fully_specified_type_destruct(&type);
1760
while (*C->I++ == DECLARATOR_NEXT);
1762
slang_fully_specified_type_destruct(&type);
1768
* Parse a function definition or declaration.
1769
* \param C parsing context
1770
* \param O output context
1771
* \param definition if non-zero expect a definition, else a declaration
1772
* \param parsed_func_ret returns the parsed function
1773
* \return 1 if success, 0 if failure
1776
parse_function(slang_parse_ctx * C, slang_output_ctx * O, int definition,
1777
slang_function ** parsed_func_ret)
1779
slang_function parsed_func, *found_func;
1781
/* parse function definition/declaration */
1782
if (!slang_function_construct(&parsed_func))
1785
if (!parse_function_definition(C, O, &parsed_func)) {
1786
slang_function_destruct(&parsed_func);
1791
if (!parse_function_prototype(C, O, &parsed_func)) {
1792
slang_function_destruct(&parsed_func);
1797
/* find a function with a prototype matching the parsed one - only
1798
* the current scope is being searched to allow built-in function
1801
found_func = slang_function_scope_find(O->funs, &parsed_func, 0);
1802
if (found_func == NULL) {
1803
/* add the parsed function to the function list */
1804
O->funs->functions =
1805
(slang_function *) slang_alloc_realloc(O->funs->functions,
1806
O->funs->num_functions *
1807
sizeof(slang_function),
1808
(O->funs->num_functions +
1809
1) * sizeof(slang_function));
1810
if (O->funs->functions == NULL) {
1811
slang_info_log_memory(C->L);
1812
slang_function_destruct(&parsed_func);
1815
O->funs->functions[O->funs->num_functions] = parsed_func;
1816
O->funs->num_functions++;
1818
/* return the newly parsed function */
1819
*parsed_func_ret = &O->funs->functions[O->funs->num_functions - 1];
1822
/* TODO: check function return type qualifiers and specifiers */
1824
if (found_func->body != NULL) {
1825
slang_info_log_error(C->L, "%s: function already has a body.",
1826
slang_atom_pool_id(C->atoms,
1829
slang_function_destruct(&parsed_func);
1833
/* destroy the existing function declaration and replace it
1834
* with the new one, remember to save the fixup table
1836
parsed_func.fixups = found_func->fixups;
1837
slang_fixup_table_init(&found_func->fixups);
1838
slang_function_destruct(found_func);
1839
*found_func = parsed_func;
1842
/* another declaration of the same function prototype - ignore it */
1843
slang_function_destruct(&parsed_func);
1846
/* return the found function */
1847
*parsed_func_ret = found_func;
1850
/* assemble the parsed function */
1852
slang_assemble_ctx A;
1854
A.file = O->assembly;
1855
A.mach = O->machine;
1857
A.space.funcs = O->funs;
1858
A.space.structs = O->structs;
1859
A.space.vars = O->vars;
1860
if (!_slang_assemble_function(&A, *parsed_func_ret))
1820
1866
/* declaration */
1821
1867
#define DECLARATION_FUNCTION_PROTOTYPE 1
1822
1868
#define DECLARATION_INIT_DECLARATOR_LIST 2
1824
static int parse_declaration (slang_parse_ctx *C, slang_output_ctx *O)
1871
parse_declaration(slang_parse_ctx * C, slang_output_ctx * O)
1828
case DECLARATION_INIT_DECLARATOR_LIST:
1829
if (!parse_init_declarator_list (C, O))
1832
case DECLARATION_FUNCTION_PROTOTYPE:
1834
slang_function *dummy_func;
1874
case DECLARATION_INIT_DECLARATOR_LIST:
1875
if (!parse_init_declarator_list(C, O))
1878
case DECLARATION_FUNCTION_PROTOTYPE:
1880
slang_function *dummy_func;
1836
if (!parse_function (C, O, 0, &dummy_func))
1882
if (!parse_function(C, O, 0, &dummy_func))
1846
1892
/* external declaration */
1974
2040
static GLboolean
1975
compile_object (grammar *id, const char *source, slang_code_object *object, slang_unit_type type,
1976
slang_info_log *infolog)
2041
compile_object(grammar * id, const char *source, slang_code_object * object,
2042
slang_unit_type type, slang_info_log * infolog)
1978
2044
slang_code_unit *builtins = NULL;
1980
2046
/* load GLSL grammar */
1981
*id = grammar_load_from_text ((const byte *) (slang_shader_syn));
2047
*id = grammar_load_from_text((const byte *) (slang_shader_syn));
1987
grammar_get_last_error (buf, 1024, &pos);
1988
slang_info_log_error (infolog, (const char *) (buf));
2052
grammar_get_last_error(buf, 1024, &pos);
2053
slang_info_log_error(infolog, (const char *) (buf));
1989
2054
return GL_FALSE;
1992
/* set shader type - the syntax is slightly different for different shaders */
1993
if (type == slang_unit_fragment_shader || type == slang_unit_fragment_builtin)
1994
grammar_set_reg8 (*id, (const byte *) "shader_type", 1);
1996
grammar_set_reg8 (*id, (const byte *) "shader_type", 2);
1998
/* enable language extensions */
1999
grammar_set_reg8 (*id, (const byte *) "parsing_builtin", 1);
2001
/* if parsing user-specified shader, load built-in library */
2002
if (type == slang_unit_fragment_shader || type == slang_unit_vertex_shader)
2004
/* compile core functionality first */
2005
if (!compile_binary (slang_core_gc, &object->builtin[SLANG_BUILTIN_CORE],
2006
slang_unit_fragment_builtin, infolog, NULL, NULL))
2009
/* compile common functions and variables, link to core */
2010
if (!compile_binary (slang_common_builtin_gc, &object->builtin[SLANG_BUILTIN_COMMON],
2011
slang_unit_fragment_builtin, infolog, NULL,
2012
&object->builtin[SLANG_BUILTIN_CORE]))
2015
/* compile target-specific functions and variables, link to common */
2016
if (type == slang_unit_fragment_shader)
2018
if (!compile_binary (slang_fragment_builtin_gc, &object->builtin[SLANG_BUILTIN_TARGET],
2019
slang_unit_fragment_builtin, infolog, NULL,
2020
&object->builtin[SLANG_BUILTIN_COMMON]))
2023
else if (type == slang_unit_vertex_shader)
2025
if (!compile_binary (slang_vertex_builtin_gc, &object->builtin[SLANG_BUILTIN_TARGET],
2026
slang_unit_vertex_builtin, infolog, NULL,
2027
&object->builtin[SLANG_BUILTIN_COMMON]))
2057
/* set shader type - the syntax is slightly different for different shaders */
2058
if (type == slang_unit_fragment_shader
2059
|| type == slang_unit_fragment_builtin)
2060
grammar_set_reg8(*id, (const byte *) "shader_type", 1);
2062
grammar_set_reg8(*id, (const byte *) "shader_type", 2);
2064
/* enable language extensions */
2065
grammar_set_reg8(*id, (const byte *) "parsing_builtin", 1);
2067
/* if parsing user-specified shader, load built-in library */
2068
if (type == slang_unit_fragment_shader || type == slang_unit_vertex_shader) {
2069
/* compile core functionality first */
2070
if (!compile_binary(slang_core_gc, &object->builtin[SLANG_BUILTIN_CORE],
2071
slang_unit_fragment_builtin, infolog, NULL, NULL))
2074
/* compile common functions and variables, link to core */
2076
(slang_common_builtin_gc, &object->builtin[SLANG_BUILTIN_COMMON],
2077
slang_unit_fragment_builtin, infolog, NULL,
2078
&object->builtin[SLANG_BUILTIN_CORE]))
2081
/* compile target-specific functions and variables, link to common */
2082
if (type == slang_unit_fragment_shader) {
2084
(slang_fragment_builtin_gc,
2085
&object->builtin[SLANG_BUILTIN_TARGET],
2086
slang_unit_fragment_builtin, infolog, NULL,
2087
&object->builtin[SLANG_BUILTIN_COMMON]))
2090
else if (type == slang_unit_vertex_shader) {
2092
(slang_vertex_builtin_gc, &object->builtin[SLANG_BUILTIN_TARGET],
2093
slang_unit_vertex_builtin, infolog, NULL,
2094
&object->builtin[SLANG_BUILTIN_COMMON]))
2031
2098
#if defined(USE_X86_ASM) || defined(SLANG_X86)
2032
2099
/* compile x86 4-component vector overrides, link to target */
2033
if (!compile_binary (slang_builtin_vec4_gc, &object->builtin[SLANG_BUILTIN_VEC4],
2034
slang_unit_fragment_builtin, infolog, NULL,
2035
&object->builtin[SLANG_BUILTIN_TARGET]))
2101
(slang_builtin_vec4_gc, &object->builtin[SLANG_BUILTIN_VEC4],
2102
slang_unit_fragment_builtin, infolog, NULL,
2103
&object->builtin[SLANG_BUILTIN_TARGET]))
2036
2104
return GL_FALSE;
2039
/* disable language extensions */
2040
grammar_set_reg8 (*id, (const byte *) "parsing_builtin", 0);
2107
/* disable language extensions */
2108
grammar_set_reg8(*id, (const byte *) "parsing_builtin", 0);
2041
2109
builtins = object->builtin;
2044
/* compile the actual shader - pass-in built-in library for external shader */
2045
return compile_with_grammar (*id, source, &object->unit, type, infolog, builtins);
2112
/* compile the actual shader - pass-in built-in library for external shader */
2113
return compile_with_grammar(*id, source, &object->unit, type, infolog,
2049
_slang_compile (const char *source, slang_code_object *object, slang_unit_type type,
2050
slang_info_log *infolog)
2118
_slang_compile(const char *source, slang_code_object * object,
2119
slang_unit_type type, slang_info_log * infolog)
2052
2121
GLboolean success;
2053
2122
grammar id = 0;
2055
_slang_code_object_dtr (object);
2056
_slang_code_object_ctr (object);
2124
_slang_code_object_dtr(object);
2125
_slang_code_object_ctr(object);
2058
success = compile_object (&id, source, object, type, infolog);
2127
success = compile_object(&id, source, object, type, infolog);
2060
grammar_destroy (id);
2129
grammar_destroy(id);
2062
2131
return GL_FALSE;
2064
if (!_slang_build_export_data_table (&object->expdata, &object->unit.vars))
2133
if (!_slang_build_export_data_table(&object->expdata, &object->unit.vars))
2065
2134
return GL_FALSE;
2066
if (!_slang_build_export_code_table (&object->expcode, &object->unit.funs, &object->unit))
2135
if (!_slang_build_export_code_table
2136
(&object->expcode, &object->unit.funs, &object->unit))
2067
2137
return GL_FALSE;
2069
2139
#if defined(USE_X86_ASM) || defined(SLANG_X86)
2070
2140
/* XXX: lookup the @main label */
2071
if (!_slang_x86_codegen (&object->machine, &object->assembly, object->expcode.entries[0].address))
2141
if (!_slang_x86_codegen
2142
(&object->machine, &object->assembly,
2143
object->expcode.entries[0].address))
2072
2144
return GL_FALSE;
2075
2147
return GL_TRUE;