11591693c7b415e9869157c711fe11263c95d74eDavid Li/* 21591693c7b415e9869157c711fe11263c95d74eDavid Li * Copyright © 2010 Intel Corporation 31591693c7b415e9869157c711fe11263c95d74eDavid Li * 41591693c7b415e9869157c711fe11263c95d74eDavid Li * Permission is hereby granted, free of charge, to any person obtaining a 51591693c7b415e9869157c711fe11263c95d74eDavid Li * copy of this software and associated documentation files (the "Software"), 61591693c7b415e9869157c711fe11263c95d74eDavid Li * to deal in the Software without restriction, including without limitation 71591693c7b415e9869157c711fe11263c95d74eDavid Li * the rights to use, copy, modify, merge, publish, distribute, sublicense, 81591693c7b415e9869157c711fe11263c95d74eDavid Li * and/or sell copies of the Software, and to permit persons to whom the 91591693c7b415e9869157c711fe11263c95d74eDavid Li * Software is furnished to do so, subject to the following conditions: 101591693c7b415e9869157c711fe11263c95d74eDavid Li * 111591693c7b415e9869157c711fe11263c95d74eDavid Li * The above copyright notice and this permission notice (including the next 121591693c7b415e9869157c711fe11263c95d74eDavid Li * paragraph) shall be included in all copies or substantial portions of the 131591693c7b415e9869157c711fe11263c95d74eDavid Li * Software. 141591693c7b415e9869157c711fe11263c95d74eDavid Li * 151591693c7b415e9869157c711fe11263c95d74eDavid Li * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 161591693c7b415e9869157c711fe11263c95d74eDavid Li * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 171591693c7b415e9869157c711fe11263c95d74eDavid Li * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 181591693c7b415e9869157c711fe11263c95d74eDavid Li * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 191591693c7b415e9869157c711fe11263c95d74eDavid Li * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 201591693c7b415e9869157c711fe11263c95d74eDavid Li * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 211591693c7b415e9869157c711fe11263c95d74eDavid Li * DEALINGS IN THE SOFTWARE. 221591693c7b415e9869157c711fe11263c95d74eDavid Li */ 231591693c7b415e9869157c711fe11263c95d74eDavid Li 241591693c7b415e9869157c711fe11263c95d74eDavid Li#include <cstdarg> 251591693c7b415e9869157c711fe11263c95d74eDavid Li 261591693c7b415e9869157c711fe11263c95d74eDavid Liextern "C" { 27d50d9a90a0df4d706421850e17c0fbd85bf710eeDavid Li#include <hieralloc.h> 281591693c7b415e9869157c711fe11263c95d74eDavid Li} 291591693c7b415e9869157c711fe11263c95d74eDavid Li 301591693c7b415e9869157c711fe11263c95d74eDavid Li#include "ir_reader.h" 311591693c7b415e9869157c711fe11263c95d74eDavid Li#include "glsl_parser_extras.h" 321591693c7b415e9869157c711fe11263c95d74eDavid Li#include "glsl_types.h" 331591693c7b415e9869157c711fe11263c95d74eDavid Li#include "s_expression.h" 341591693c7b415e9869157c711fe11263c95d74eDavid Li 351591693c7b415e9869157c711fe11263c95d74eDavid Liconst static bool debug = false; 361591693c7b415e9869157c711fe11263c95d74eDavid Li 371591693c7b415e9869157c711fe11263c95d74eDavid Listatic void ir_read_error(_mesa_glsl_parse_state *, s_expression *, 381591693c7b415e9869157c711fe11263c95d74eDavid Li const char *fmt, ...); 391591693c7b415e9869157c711fe11263c95d74eDavid Listatic const glsl_type *read_type(_mesa_glsl_parse_state *, s_expression *); 401591693c7b415e9869157c711fe11263c95d74eDavid Li 411591693c7b415e9869157c711fe11263c95d74eDavid Listatic void scan_for_prototypes(_mesa_glsl_parse_state *, exec_list *, 421591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *); 431591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_function *read_function(_mesa_glsl_parse_state *, s_list *, 441591693c7b415e9869157c711fe11263c95d74eDavid Li bool skip_body); 451591693c7b415e9869157c711fe11263c95d74eDavid Listatic void read_function_sig(_mesa_glsl_parse_state *, ir_function *, 461591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *, bool skip_body); 471591693c7b415e9869157c711fe11263c95d74eDavid Li 481591693c7b415e9869157c711fe11263c95d74eDavid Listatic void read_instructions(_mesa_glsl_parse_state *, exec_list *, 491591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *, ir_loop *); 501591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_instruction *read_instruction(_mesa_glsl_parse_state *, 511591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *, ir_loop *); 521591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_variable *read_declaration(_mesa_glsl_parse_state *, s_list *); 531591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_if *read_if(_mesa_glsl_parse_state *, s_list *, ir_loop *); 541591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_loop *read_loop(_mesa_glsl_parse_state *st, s_list *list); 551591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_return *read_return(_mesa_glsl_parse_state *, s_list *); 561591693c7b415e9869157c711fe11263c95d74eDavid Li 571591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_rvalue *read_rvalue(_mesa_glsl_parse_state *, s_expression *); 581591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_assignment *read_assignment(_mesa_glsl_parse_state *, s_list *); 591591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_expression *read_expression(_mesa_glsl_parse_state *, s_list *); 601591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_call *read_call(_mesa_glsl_parse_state *, s_list *); 611591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_swizzle *read_swizzle(_mesa_glsl_parse_state *, s_list *); 621591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_constant *read_constant(_mesa_glsl_parse_state *, s_list *); 631591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_texture *read_texture(_mesa_glsl_parse_state *, s_list *); 641591693c7b415e9869157c711fe11263c95d74eDavid Li 651591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_dereference *read_dereference(_mesa_glsl_parse_state *, 661591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *); 671591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_dereference_variable * 681591693c7b415e9869157c711fe11263c95d74eDavid Liread_var_ref(_mesa_glsl_parse_state *, s_list *); 691591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_dereference_array * 701591693c7b415e9869157c711fe11263c95d74eDavid Liread_array_ref(_mesa_glsl_parse_state *, s_list *); 711591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_dereference_record * 721591693c7b415e9869157c711fe11263c95d74eDavid Liread_record_ref(_mesa_glsl_parse_state *, s_list *); 731591693c7b415e9869157c711fe11263c95d74eDavid Li 741591693c7b415e9869157c711fe11263c95d74eDavid Livoid 751591693c7b415e9869157c711fe11263c95d74eDavid Li_mesa_glsl_read_ir(_mesa_glsl_parse_state *state, exec_list *instructions, 761591693c7b415e9869157c711fe11263c95d74eDavid Li const char *src, bool scan_for_protos) 771591693c7b415e9869157c711fe11263c95d74eDavid Li{ 781591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *expr = s_expression::read_expression(state, src); 791591693c7b415e9869157c711fe11263c95d74eDavid Li if (expr == NULL) { 801591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(state, NULL, "couldn't parse S-Expression."); 811591693c7b415e9869157c711fe11263c95d74eDavid Li return; 821591693c7b415e9869157c711fe11263c95d74eDavid Li } 831591693c7b415e9869157c711fe11263c95d74eDavid Li 841591693c7b415e9869157c711fe11263c95d74eDavid Li if (scan_for_protos) { 851591693c7b415e9869157c711fe11263c95d74eDavid Li scan_for_prototypes(state, instructions, expr); 861591693c7b415e9869157c711fe11263c95d74eDavid Li if (state->error) 871591693c7b415e9869157c711fe11263c95d74eDavid Li return; 881591693c7b415e9869157c711fe11263c95d74eDavid Li } 891591693c7b415e9869157c711fe11263c95d74eDavid Li 901591693c7b415e9869157c711fe11263c95d74eDavid Li read_instructions(state, instructions, expr, NULL); 91d50d9a90a0df4d706421850e17c0fbd85bf710eeDavid Li hieralloc_free(expr); 921591693c7b415e9869157c711fe11263c95d74eDavid Li 931591693c7b415e9869157c711fe11263c95d74eDavid Li if (debug) 941591693c7b415e9869157c711fe11263c95d74eDavid Li validate_ir_tree(instructions); 951591693c7b415e9869157c711fe11263c95d74eDavid Li} 961591693c7b415e9869157c711fe11263c95d74eDavid Li 971591693c7b415e9869157c711fe11263c95d74eDavid Listatic void 981591693c7b415e9869157c711fe11263c95d74eDavid Liir_read_error(_mesa_glsl_parse_state *state, s_expression *expr, 991591693c7b415e9869157c711fe11263c95d74eDavid Li const char *fmt, ...) 1001591693c7b415e9869157c711fe11263c95d74eDavid Li{ 1011591693c7b415e9869157c711fe11263c95d74eDavid Li va_list ap; 1021591693c7b415e9869157c711fe11263c95d74eDavid Li 1031591693c7b415e9869157c711fe11263c95d74eDavid Li state->error = true; 1041591693c7b415e9869157c711fe11263c95d74eDavid Li 1051591693c7b415e9869157c711fe11263c95d74eDavid Li if (state->current_function != NULL) 106d50d9a90a0df4d706421850e17c0fbd85bf710eeDavid Li state->info_log = hieralloc_asprintf_append(state->info_log, 1071591693c7b415e9869157c711fe11263c95d74eDavid Li "In function %s:\n", 1081591693c7b415e9869157c711fe11263c95d74eDavid Li state->current_function->function_name()); 109d50d9a90a0df4d706421850e17c0fbd85bf710eeDavid Li state->info_log = hieralloc_strdup_append(state->info_log, "error: "); 1101591693c7b415e9869157c711fe11263c95d74eDavid Li 1111591693c7b415e9869157c711fe11263c95d74eDavid Li va_start(ap, fmt); 112d50d9a90a0df4d706421850e17c0fbd85bf710eeDavid Li state->info_log = hieralloc_vasprintf_append(state->info_log, fmt, ap); 1131591693c7b415e9869157c711fe11263c95d74eDavid Li va_end(ap); 114d50d9a90a0df4d706421850e17c0fbd85bf710eeDavid Li state->info_log = hieralloc_strdup_append(state->info_log, "\n"); 1151591693c7b415e9869157c711fe11263c95d74eDavid Li 1161591693c7b415e9869157c711fe11263c95d74eDavid Li if (expr != NULL) { 117d50d9a90a0df4d706421850e17c0fbd85bf710eeDavid Li state->info_log = hieralloc_strdup_append(state->info_log, 1181591693c7b415e9869157c711fe11263c95d74eDavid Li "...in this context:\n "); 1191591693c7b415e9869157c711fe11263c95d74eDavid Li expr->print(); 120d50d9a90a0df4d706421850e17c0fbd85bf710eeDavid Li state->info_log = hieralloc_strdup_append(state->info_log, "\n\n"); 1211591693c7b415e9869157c711fe11263c95d74eDavid Li } 1221591693c7b415e9869157c711fe11263c95d74eDavid Li} 1231591693c7b415e9869157c711fe11263c95d74eDavid Li 1241591693c7b415e9869157c711fe11263c95d74eDavid Listatic const glsl_type * 1251591693c7b415e9869157c711fe11263c95d74eDavid Liread_type(_mesa_glsl_parse_state *st, s_expression *expr) 1261591693c7b415e9869157c711fe11263c95d74eDavid Li{ 1271591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *list = SX_AS_LIST(expr); 1281591693c7b415e9869157c711fe11263c95d74eDavid Li if (list != NULL) { 1291591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *type_sym = SX_AS_SYMBOL(list->subexpressions.get_head()); 1301591693c7b415e9869157c711fe11263c95d74eDavid Li if (type_sym == NULL) { 1311591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "expected type (array ...) or (struct ...)"); 1321591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 1331591693c7b415e9869157c711fe11263c95d74eDavid Li } 1341591693c7b415e9869157c711fe11263c95d74eDavid Li if (strcmp(type_sym->value(), "array") == 0) { 1351591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 3) { 1361591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "expected type (array <type> <int>)"); 1371591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 1381591693c7b415e9869157c711fe11263c95d74eDavid Li } 1391591693c7b415e9869157c711fe11263c95d74eDavid Li 1401591693c7b415e9869157c711fe11263c95d74eDavid Li // Read base type 1411591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *base_expr = (s_expression*) type_sym->next; 1421591693c7b415e9869157c711fe11263c95d74eDavid Li const glsl_type *base_type = read_type(st, base_expr); 1431591693c7b415e9869157c711fe11263c95d74eDavid Li if (base_type == NULL) { 1441591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading base type of array"); 1451591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 1461591693c7b415e9869157c711fe11263c95d74eDavid Li } 1471591693c7b415e9869157c711fe11263c95d74eDavid Li 1481591693c7b415e9869157c711fe11263c95d74eDavid Li // Read array size 1491591693c7b415e9869157c711fe11263c95d74eDavid Li s_int *size = SX_AS_INT(base_expr->next); 1501591693c7b415e9869157c711fe11263c95d74eDavid Li if (size == NULL) { 1511591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "found non-integer array size"); 1521591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 1531591693c7b415e9869157c711fe11263c95d74eDavid Li } 1541591693c7b415e9869157c711fe11263c95d74eDavid Li 1551591693c7b415e9869157c711fe11263c95d74eDavid Li return glsl_type::get_array_instance(base_type, size->value()); 1561591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(type_sym->value(), "struct") == 0) { 1571591693c7b415e9869157c711fe11263c95d74eDavid Li assert(false); // FINISHME 1581591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 1591591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "expected (array ...) or (struct ...); " 1601591693c7b415e9869157c711fe11263c95d74eDavid Li "found (%s ...)", type_sym->value()); 1611591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 1621591693c7b415e9869157c711fe11263c95d74eDavid Li } 1631591693c7b415e9869157c711fe11263c95d74eDavid Li } 1641591693c7b415e9869157c711fe11263c95d74eDavid Li 1651591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *type_sym = SX_AS_SYMBOL(expr); 1661591693c7b415e9869157c711fe11263c95d74eDavid Li if (type_sym == NULL) { 1671591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "expected <type> (symbol or list)"); 1681591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 1691591693c7b415e9869157c711fe11263c95d74eDavid Li } 1701591693c7b415e9869157c711fe11263c95d74eDavid Li 1711591693c7b415e9869157c711fe11263c95d74eDavid Li const glsl_type *type = st->symbols->get_type(type_sym->value()); 1721591693c7b415e9869157c711fe11263c95d74eDavid Li if (type == NULL) 1731591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "invalid type: %s", type_sym->value()); 1741591693c7b415e9869157c711fe11263c95d74eDavid Li 1751591693c7b415e9869157c711fe11263c95d74eDavid Li return type; 1761591693c7b415e9869157c711fe11263c95d74eDavid Li} 1771591693c7b415e9869157c711fe11263c95d74eDavid Li 1781591693c7b415e9869157c711fe11263c95d74eDavid Li 1791591693c7b415e9869157c711fe11263c95d74eDavid Listatic void 1801591693c7b415e9869157c711fe11263c95d74eDavid Liscan_for_prototypes(_mesa_glsl_parse_state *st, exec_list *instructions, 1811591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *expr) 1821591693c7b415e9869157c711fe11263c95d74eDavid Li{ 1831591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *list = SX_AS_LIST(expr); 1841591693c7b415e9869157c711fe11263c95d74eDavid Li if (list == NULL) { 1851591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "Expected (<instruction> ...); found an atom."); 1861591693c7b415e9869157c711fe11263c95d74eDavid Li return; 1871591693c7b415e9869157c711fe11263c95d74eDavid Li } 1881591693c7b415e9869157c711fe11263c95d74eDavid Li 1891591693c7b415e9869157c711fe11263c95d74eDavid Li foreach_iter(exec_list_iterator, it, list->subexpressions) { 1901591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *sub = SX_AS_LIST(it.get()); 1911591693c7b415e9869157c711fe11263c95d74eDavid Li if (sub == NULL) 1921591693c7b415e9869157c711fe11263c95d74eDavid Li continue; // not a (function ...); ignore it. 1931591693c7b415e9869157c711fe11263c95d74eDavid Li 1941591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *tag = SX_AS_SYMBOL(sub->subexpressions.get_head()); 1951591693c7b415e9869157c711fe11263c95d74eDavid Li if (tag == NULL || strcmp(tag->value(), "function") != 0) 1961591693c7b415e9869157c711fe11263c95d74eDavid Li continue; // not a (function ...); ignore it. 1971591693c7b415e9869157c711fe11263c95d74eDavid Li 1981591693c7b415e9869157c711fe11263c95d74eDavid Li ir_function *f = read_function(st, sub, true); 1991591693c7b415e9869157c711fe11263c95d74eDavid Li if (f == NULL) 2001591693c7b415e9869157c711fe11263c95d74eDavid Li return; 2011591693c7b415e9869157c711fe11263c95d74eDavid Li instructions->push_tail(f); 2021591693c7b415e9869157c711fe11263c95d74eDavid Li } 2031591693c7b415e9869157c711fe11263c95d74eDavid Li} 2041591693c7b415e9869157c711fe11263c95d74eDavid Li 2051591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_function * 2061591693c7b415e9869157c711fe11263c95d74eDavid Liread_function(_mesa_glsl_parse_state *st, s_list *list, bool skip_body) 2071591693c7b415e9869157c711fe11263c95d74eDavid Li{ 2081591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 2091591693c7b415e9869157c711fe11263c95d74eDavid Li bool added = false; 2101591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() < 3) { 2111591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "Expected (function <name> (signature ...) ...)"); 2121591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 2131591693c7b415e9869157c711fe11263c95d74eDavid Li } 2141591693c7b415e9869157c711fe11263c95d74eDavid Li 2151591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *name = SX_AS_SYMBOL(list->subexpressions.head->next); 2161591693c7b415e9869157c711fe11263c95d74eDavid Li if (name == NULL) { 2171591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "Expected (function <name> ...)"); 2181591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 2191591693c7b415e9869157c711fe11263c95d74eDavid Li } 2201591693c7b415e9869157c711fe11263c95d74eDavid Li 2211591693c7b415e9869157c711fe11263c95d74eDavid Li ir_function *f = st->symbols->get_function(name->value()); 2221591693c7b415e9869157c711fe11263c95d74eDavid Li if (f == NULL) { 2231591693c7b415e9869157c711fe11263c95d74eDavid Li f = new(ctx) ir_function(name->value()); 2241591693c7b415e9869157c711fe11263c95d74eDavid Li added = st->symbols->add_function(f); 2251591693c7b415e9869157c711fe11263c95d74eDavid Li assert(added); 2261591693c7b415e9869157c711fe11263c95d74eDavid Li } 2271591693c7b415e9869157c711fe11263c95d74eDavid Li 2281591693c7b415e9869157c711fe11263c95d74eDavid Li exec_list_iterator it = list->subexpressions.iterator(); 2291591693c7b415e9869157c711fe11263c95d74eDavid Li it.next(); // skip "function" tag 2301591693c7b415e9869157c711fe11263c95d74eDavid Li it.next(); // skip function name 2311591693c7b415e9869157c711fe11263c95d74eDavid Li for (/* nothing */; it.has_next(); it.next()) { 2321591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *siglist = SX_AS_LIST(it.get()); 2331591693c7b415e9869157c711fe11263c95d74eDavid Li if (siglist == NULL) { 2341591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "Expected (function (signature ...) ...)"); 2351591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 2361591693c7b415e9869157c711fe11263c95d74eDavid Li } 2371591693c7b415e9869157c711fe11263c95d74eDavid Li 2381591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *tag = SX_AS_SYMBOL(siglist->subexpressions.get_head()); 2391591693c7b415e9869157c711fe11263c95d74eDavid Li if (tag == NULL || strcmp(tag->value(), "signature") != 0) { 2401591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, siglist, "Expected (signature ...)"); 2411591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 2421591693c7b415e9869157c711fe11263c95d74eDavid Li } 2431591693c7b415e9869157c711fe11263c95d74eDavid Li 2441591693c7b415e9869157c711fe11263c95d74eDavid Li read_function_sig(st, f, siglist, skip_body); 2451591693c7b415e9869157c711fe11263c95d74eDavid Li } 2461591693c7b415e9869157c711fe11263c95d74eDavid Li return added ? f : NULL; 2471591693c7b415e9869157c711fe11263c95d74eDavid Li} 2481591693c7b415e9869157c711fe11263c95d74eDavid Li 2491591693c7b415e9869157c711fe11263c95d74eDavid Listatic void 2501591693c7b415e9869157c711fe11263c95d74eDavid Liread_function_sig(_mesa_glsl_parse_state *st, ir_function *f, s_list *list, 2511591693c7b415e9869157c711fe11263c95d74eDavid Li bool skip_body) 2521591693c7b415e9869157c711fe11263c95d74eDavid Li{ 2531591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 2541591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 4) { 2551591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "Expected (signature <type> (parameters ...) " 2561591693c7b415e9869157c711fe11263c95d74eDavid Li "(<instruction> ...))"); 2571591693c7b415e9869157c711fe11263c95d74eDavid Li return; 2581591693c7b415e9869157c711fe11263c95d74eDavid Li } 2591591693c7b415e9869157c711fe11263c95d74eDavid Li 2601591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *type_expr = (s_expression*) list->subexpressions.head->next; 2611591693c7b415e9869157c711fe11263c95d74eDavid Li const glsl_type *return_type = read_type(st, type_expr); 2621591693c7b415e9869157c711fe11263c95d74eDavid Li if (return_type == NULL) 2631591693c7b415e9869157c711fe11263c95d74eDavid Li return; 2641591693c7b415e9869157c711fe11263c95d74eDavid Li 2651591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *paramlist = SX_AS_LIST(type_expr->next); 2661591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *body_list = SX_AS_LIST(type_expr->next->next); 2671591693c7b415e9869157c711fe11263c95d74eDavid Li if (paramlist == NULL || body_list == NULL) { 2681591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "Expected (signature <type> (parameters ...) " 2691591693c7b415e9869157c711fe11263c95d74eDavid Li "(<instruction> ...))"); 2701591693c7b415e9869157c711fe11263c95d74eDavid Li return; 2711591693c7b415e9869157c711fe11263c95d74eDavid Li } 2721591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *paramtag = SX_AS_SYMBOL(paramlist->subexpressions.get_head()); 2731591693c7b415e9869157c711fe11263c95d74eDavid Li if (paramtag == NULL || strcmp(paramtag->value(), "parameters") != 0) { 2741591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, paramlist, "Expected (parameters ...)"); 2751591693c7b415e9869157c711fe11263c95d74eDavid Li return; 2761591693c7b415e9869157c711fe11263c95d74eDavid Li } 2771591693c7b415e9869157c711fe11263c95d74eDavid Li 2781591693c7b415e9869157c711fe11263c95d74eDavid Li // Read the parameters list into a temporary place. 2791591693c7b415e9869157c711fe11263c95d74eDavid Li exec_list hir_parameters; 2801591693c7b415e9869157c711fe11263c95d74eDavid Li st->symbols->push_scope(); 2811591693c7b415e9869157c711fe11263c95d74eDavid Li 2821591693c7b415e9869157c711fe11263c95d74eDavid Li exec_list_iterator it = paramlist->subexpressions.iterator(); 2831591693c7b415e9869157c711fe11263c95d74eDavid Li for (it.next() /* skip "parameters" */; it.has_next(); it.next()) { 2841591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *decl = SX_AS_LIST(it.get()); 2851591693c7b415e9869157c711fe11263c95d74eDavid Li ir_variable *var = read_declaration(st, decl); 2861591693c7b415e9869157c711fe11263c95d74eDavid Li if (var == NULL) 2871591693c7b415e9869157c711fe11263c95d74eDavid Li return; 2881591693c7b415e9869157c711fe11263c95d74eDavid Li 2891591693c7b415e9869157c711fe11263c95d74eDavid Li hir_parameters.push_tail(var); 2901591693c7b415e9869157c711fe11263c95d74eDavid Li } 2911591693c7b415e9869157c711fe11263c95d74eDavid Li 2921591693c7b415e9869157c711fe11263c95d74eDavid Li ir_function_signature *sig = f->exact_matching_signature(&hir_parameters); 2931591693c7b415e9869157c711fe11263c95d74eDavid Li if (sig == NULL && skip_body) { 2941591693c7b415e9869157c711fe11263c95d74eDavid Li /* If scanning for prototypes, generate a new signature. */ 2951591693c7b415e9869157c711fe11263c95d74eDavid Li sig = new(ctx) ir_function_signature(return_type); 2961591693c7b415e9869157c711fe11263c95d74eDavid Li sig->is_builtin = true; 2971591693c7b415e9869157c711fe11263c95d74eDavid Li f->add_signature(sig); 2981591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (sig != NULL) { 2991591693c7b415e9869157c711fe11263c95d74eDavid Li const char *badvar = sig->qualifiers_match(&hir_parameters); 3001591693c7b415e9869157c711fe11263c95d74eDavid Li if (badvar != NULL) { 3011591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "function `%s' parameter `%s' qualifiers " 3021591693c7b415e9869157c711fe11263c95d74eDavid Li "don't match prototype", f->name, badvar); 3031591693c7b415e9869157c711fe11263c95d74eDavid Li return; 3041591693c7b415e9869157c711fe11263c95d74eDavid Li } 3051591693c7b415e9869157c711fe11263c95d74eDavid Li 3061591693c7b415e9869157c711fe11263c95d74eDavid Li if (sig->return_type != return_type) { 3071591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "function `%s' return type doesn't " 3081591693c7b415e9869157c711fe11263c95d74eDavid Li "match prototype", f->name); 3091591693c7b415e9869157c711fe11263c95d74eDavid Li return; 3101591693c7b415e9869157c711fe11263c95d74eDavid Li } 3111591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 3121591693c7b415e9869157c711fe11263c95d74eDavid Li /* No prototype for this body exists - skip it. */ 3131591693c7b415e9869157c711fe11263c95d74eDavid Li st->symbols->pop_scope(); 3141591693c7b415e9869157c711fe11263c95d74eDavid Li return; 3151591693c7b415e9869157c711fe11263c95d74eDavid Li } 3161591693c7b415e9869157c711fe11263c95d74eDavid Li assert(sig != NULL); 3171591693c7b415e9869157c711fe11263c95d74eDavid Li 3181591693c7b415e9869157c711fe11263c95d74eDavid Li sig->replace_parameters(&hir_parameters); 3191591693c7b415e9869157c711fe11263c95d74eDavid Li 3201591693c7b415e9869157c711fe11263c95d74eDavid Li if (!skip_body && !body_list->subexpressions.is_empty()) { 3211591693c7b415e9869157c711fe11263c95d74eDavid Li if (sig->is_defined) { 3221591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "function %s redefined", f->name); 3231591693c7b415e9869157c711fe11263c95d74eDavid Li return; 3241591693c7b415e9869157c711fe11263c95d74eDavid Li } 3251591693c7b415e9869157c711fe11263c95d74eDavid Li st->current_function = sig; 3261591693c7b415e9869157c711fe11263c95d74eDavid Li read_instructions(st, &sig->body, body_list, NULL); 3271591693c7b415e9869157c711fe11263c95d74eDavid Li st->current_function = NULL; 3281591693c7b415e9869157c711fe11263c95d74eDavid Li sig->is_defined = true; 3291591693c7b415e9869157c711fe11263c95d74eDavid Li } 3301591693c7b415e9869157c711fe11263c95d74eDavid Li 3311591693c7b415e9869157c711fe11263c95d74eDavid Li st->symbols->pop_scope(); 3321591693c7b415e9869157c711fe11263c95d74eDavid Li} 3331591693c7b415e9869157c711fe11263c95d74eDavid Li 3341591693c7b415e9869157c711fe11263c95d74eDavid Listatic void 3351591693c7b415e9869157c711fe11263c95d74eDavid Liread_instructions(_mesa_glsl_parse_state *st, exec_list *instructions, 3361591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *expr, ir_loop *loop_ctx) 3371591693c7b415e9869157c711fe11263c95d74eDavid Li{ 3381591693c7b415e9869157c711fe11263c95d74eDavid Li // Read in a list of instructions 3391591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *list = SX_AS_LIST(expr); 3401591693c7b415e9869157c711fe11263c95d74eDavid Li if (list == NULL) { 3411591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "Expected (<instruction> ...); found an atom."); 3421591693c7b415e9869157c711fe11263c95d74eDavid Li return; 3431591693c7b415e9869157c711fe11263c95d74eDavid Li } 3441591693c7b415e9869157c711fe11263c95d74eDavid Li 3451591693c7b415e9869157c711fe11263c95d74eDavid Li foreach_iter(exec_list_iterator, it, list->subexpressions) { 3461591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *sub = (s_expression*) it.get(); 3471591693c7b415e9869157c711fe11263c95d74eDavid Li ir_instruction *ir = read_instruction(st, sub, loop_ctx); 3481591693c7b415e9869157c711fe11263c95d74eDavid Li if (ir != NULL) { 3491591693c7b415e9869157c711fe11263c95d74eDavid Li /* Global variable declarations should be moved to the top, before 3501591693c7b415e9869157c711fe11263c95d74eDavid Li * any functions that might use them. Functions are added to the 3511591693c7b415e9869157c711fe11263c95d74eDavid Li * instruction stream when scanning for prototypes, so without this 3521591693c7b415e9869157c711fe11263c95d74eDavid Li * hack, they always appear before variable declarations. 3531591693c7b415e9869157c711fe11263c95d74eDavid Li */ 3541591693c7b415e9869157c711fe11263c95d74eDavid Li if (st->current_function == NULL && ir->as_variable() != NULL) 3551591693c7b415e9869157c711fe11263c95d74eDavid Li instructions->push_head(ir); 3561591693c7b415e9869157c711fe11263c95d74eDavid Li else 3571591693c7b415e9869157c711fe11263c95d74eDavid Li instructions->push_tail(ir); 3581591693c7b415e9869157c711fe11263c95d74eDavid Li } 3591591693c7b415e9869157c711fe11263c95d74eDavid Li } 3601591693c7b415e9869157c711fe11263c95d74eDavid Li} 3611591693c7b415e9869157c711fe11263c95d74eDavid Li 3621591693c7b415e9869157c711fe11263c95d74eDavid Li 3631591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_instruction * 3641591693c7b415e9869157c711fe11263c95d74eDavid Liread_instruction(_mesa_glsl_parse_state *st, s_expression *expr, 3651591693c7b415e9869157c711fe11263c95d74eDavid Li ir_loop *loop_ctx) 3661591693c7b415e9869157c711fe11263c95d74eDavid Li{ 3671591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 3681591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *symbol = SX_AS_SYMBOL(expr); 3691591693c7b415e9869157c711fe11263c95d74eDavid Li if (symbol != NULL) { 3701591693c7b415e9869157c711fe11263c95d74eDavid Li if (strcmp(symbol->value(), "break") == 0 && loop_ctx != NULL) 3711591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_loop_jump(ir_loop_jump::jump_break); 3721591693c7b415e9869157c711fe11263c95d74eDavid Li if (strcmp(symbol->value(), "continue") == 0 && loop_ctx != NULL) 3731591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_loop_jump(ir_loop_jump::jump_continue); 3741591693c7b415e9869157c711fe11263c95d74eDavid Li } 3751591693c7b415e9869157c711fe11263c95d74eDavid Li 3761591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *list = SX_AS_LIST(expr); 3771591693c7b415e9869157c711fe11263c95d74eDavid Li if (list == NULL || list->subexpressions.is_empty()) { 3781591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "Invalid instruction.\n"); 3791591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 3801591693c7b415e9869157c711fe11263c95d74eDavid Li } 3811591693c7b415e9869157c711fe11263c95d74eDavid Li 3821591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.get_head()); 3831591693c7b415e9869157c711fe11263c95d74eDavid Li if (tag == NULL) { 3841591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "expected instruction tag"); 3851591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 3861591693c7b415e9869157c711fe11263c95d74eDavid Li } 3871591693c7b415e9869157c711fe11263c95d74eDavid Li 3881591693c7b415e9869157c711fe11263c95d74eDavid Li ir_instruction *inst = NULL; 3891591693c7b415e9869157c711fe11263c95d74eDavid Li if (strcmp(tag->value(), "declare") == 0) { 3901591693c7b415e9869157c711fe11263c95d74eDavid Li inst = read_declaration(st, list); 3911591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(tag->value(), "assign") == 0) { 3921591693c7b415e9869157c711fe11263c95d74eDavid Li inst = read_assignment(st, list); 3931591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(tag->value(), "if") == 0) { 3941591693c7b415e9869157c711fe11263c95d74eDavid Li inst = read_if(st, list, loop_ctx); 3951591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(tag->value(), "loop") == 0) { 3961591693c7b415e9869157c711fe11263c95d74eDavid Li inst = read_loop(st, list); 3971591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(tag->value(), "return") == 0) { 3981591693c7b415e9869157c711fe11263c95d74eDavid Li inst = read_return(st, list); 3991591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(tag->value(), "function") == 0) { 4001591693c7b415e9869157c711fe11263c95d74eDavid Li inst = read_function(st, list, false); 4011591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 4021591693c7b415e9869157c711fe11263c95d74eDavid Li inst = read_rvalue(st, list); 4031591693c7b415e9869157c711fe11263c95d74eDavid Li if (inst == NULL) 4041591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading instruction"); 4051591693c7b415e9869157c711fe11263c95d74eDavid Li } 4061591693c7b415e9869157c711fe11263c95d74eDavid Li return inst; 4071591693c7b415e9869157c711fe11263c95d74eDavid Li} 4081591693c7b415e9869157c711fe11263c95d74eDavid Li 4091591693c7b415e9869157c711fe11263c95d74eDavid Li 4101591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_variable * 4111591693c7b415e9869157c711fe11263c95d74eDavid Liread_declaration(_mesa_glsl_parse_state *st, s_list *list) 4121591693c7b415e9869157c711fe11263c95d74eDavid Li{ 4131591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 4141591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 4) { 4151591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (declare (<qualifiers>) <type> " 4161591693c7b415e9869157c711fe11263c95d74eDavid Li "<name>)"); 4171591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 4181591693c7b415e9869157c711fe11263c95d74eDavid Li } 4191591693c7b415e9869157c711fe11263c95d74eDavid Li 4201591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *quals = SX_AS_LIST(list->subexpressions.head->next); 4211591693c7b415e9869157c711fe11263c95d74eDavid Li if (quals == NULL) { 4221591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected a list of variable qualifiers"); 4231591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 4241591693c7b415e9869157c711fe11263c95d74eDavid Li } 4251591693c7b415e9869157c711fe11263c95d74eDavid Li 4261591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *type_expr = (s_expression*) quals->next; 4271591693c7b415e9869157c711fe11263c95d74eDavid Li const glsl_type *type = read_type(st, type_expr); 4281591693c7b415e9869157c711fe11263c95d74eDavid Li if (type == NULL) 4291591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 4301591693c7b415e9869157c711fe11263c95d74eDavid Li 4311591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *var_name = SX_AS_SYMBOL(type_expr->next); 4321591693c7b415e9869157c711fe11263c95d74eDavid Li if (var_name == NULL) { 4331591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected variable name, found non-symbol"); 4341591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 4351591693c7b415e9869157c711fe11263c95d74eDavid Li } 4361591693c7b415e9869157c711fe11263c95d74eDavid Li 4371591693c7b415e9869157c711fe11263c95d74eDavid Li ir_variable *var = new(ctx) ir_variable(type, var_name->value(), 4381591693c7b415e9869157c711fe11263c95d74eDavid Li ir_var_auto); 4391591693c7b415e9869157c711fe11263c95d74eDavid Li 4401591693c7b415e9869157c711fe11263c95d74eDavid Li foreach_iter(exec_list_iterator, it, quals->subexpressions) { 4411591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *qualifier = SX_AS_SYMBOL(it.get()); 4421591693c7b415e9869157c711fe11263c95d74eDavid Li if (qualifier == NULL) { 4431591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "qualifier list must contain only symbols"); 4441591693c7b415e9869157c711fe11263c95d74eDavid Li delete var; 4451591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 4461591693c7b415e9869157c711fe11263c95d74eDavid Li } 4471591693c7b415e9869157c711fe11263c95d74eDavid Li 4481591693c7b415e9869157c711fe11263c95d74eDavid Li // FINISHME: Check for duplicate/conflicting qualifiers. 4491591693c7b415e9869157c711fe11263c95d74eDavid Li if (strcmp(qualifier->value(), "centroid") == 0) { 4501591693c7b415e9869157c711fe11263c95d74eDavid Li var->centroid = 1; 4511591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "invariant") == 0) { 4521591693c7b415e9869157c711fe11263c95d74eDavid Li var->invariant = 1; 4531591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "uniform") == 0) { 4541591693c7b415e9869157c711fe11263c95d74eDavid Li var->mode = ir_var_uniform; 4551591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "auto") == 0) { 4561591693c7b415e9869157c711fe11263c95d74eDavid Li var->mode = ir_var_auto; 4571591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "in") == 0) { 4581591693c7b415e9869157c711fe11263c95d74eDavid Li var->mode = ir_var_in; 4591591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "out") == 0) { 4601591693c7b415e9869157c711fe11263c95d74eDavid Li var->mode = ir_var_out; 4611591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "inout") == 0) { 4621591693c7b415e9869157c711fe11263c95d74eDavid Li var->mode = ir_var_inout; 4631591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "smooth") == 0) { 4641591693c7b415e9869157c711fe11263c95d74eDavid Li var->interpolation = ir_var_smooth; 4651591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "flat") == 0) { 4661591693c7b415e9869157c711fe11263c95d74eDavid Li var->interpolation = ir_var_flat; 4671591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(qualifier->value(), "noperspective") == 0) { 4681591693c7b415e9869157c711fe11263c95d74eDavid Li var->interpolation = ir_var_noperspective; 4691591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 4701591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "unknown qualifier: %s", qualifier->value()); 4711591693c7b415e9869157c711fe11263c95d74eDavid Li delete var; 4721591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 4731591693c7b415e9869157c711fe11263c95d74eDavid Li } 4741591693c7b415e9869157c711fe11263c95d74eDavid Li } 4751591693c7b415e9869157c711fe11263c95d74eDavid Li 4761591693c7b415e9869157c711fe11263c95d74eDavid Li // Add the variable to the symbol table 4771591693c7b415e9869157c711fe11263c95d74eDavid Li st->symbols->add_variable(var); 4781591693c7b415e9869157c711fe11263c95d74eDavid Li 4791591693c7b415e9869157c711fe11263c95d74eDavid Li return var; 4801591693c7b415e9869157c711fe11263c95d74eDavid Li} 4811591693c7b415e9869157c711fe11263c95d74eDavid Li 4821591693c7b415e9869157c711fe11263c95d74eDavid Li 4831591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_if * 4841591693c7b415e9869157c711fe11263c95d74eDavid Liread_if(_mesa_glsl_parse_state *st, s_list *list, ir_loop *loop_ctx) 4851591693c7b415e9869157c711fe11263c95d74eDavid Li{ 4861591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 4871591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 4) { 4881591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (if <condition> (<then> ...) " 4891591693c7b415e9869157c711fe11263c95d74eDavid Li "(<else> ...))"); 4901591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 4911591693c7b415e9869157c711fe11263c95d74eDavid Li } 4921591693c7b415e9869157c711fe11263c95d74eDavid Li 4931591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *cond_expr = (s_expression*) list->subexpressions.head->next; 4941591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *condition = read_rvalue(st, cond_expr); 4951591693c7b415e9869157c711fe11263c95d74eDavid Li if (condition == NULL) { 4961591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading condition of (if ...)"); 4971591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 4981591693c7b415e9869157c711fe11263c95d74eDavid Li } 4991591693c7b415e9869157c711fe11263c95d74eDavid Li 5001591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *then_expr = (s_expression*) cond_expr->next; 5011591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *else_expr = (s_expression*) then_expr->next; 5021591693c7b415e9869157c711fe11263c95d74eDavid Li 5031591693c7b415e9869157c711fe11263c95d74eDavid Li ir_if *iff = new(ctx) ir_if(condition); 5041591693c7b415e9869157c711fe11263c95d74eDavid Li 5051591693c7b415e9869157c711fe11263c95d74eDavid Li read_instructions(st, &iff->then_instructions, then_expr, loop_ctx); 5061591693c7b415e9869157c711fe11263c95d74eDavid Li read_instructions(st, &iff->else_instructions, else_expr, loop_ctx); 5071591693c7b415e9869157c711fe11263c95d74eDavid Li if (st->error) { 5081591693c7b415e9869157c711fe11263c95d74eDavid Li delete iff; 5091591693c7b415e9869157c711fe11263c95d74eDavid Li iff = NULL; 5101591693c7b415e9869157c711fe11263c95d74eDavid Li } 5111591693c7b415e9869157c711fe11263c95d74eDavid Li return iff; 5121591693c7b415e9869157c711fe11263c95d74eDavid Li} 5131591693c7b415e9869157c711fe11263c95d74eDavid Li 5141591693c7b415e9869157c711fe11263c95d74eDavid Li 5151591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_loop * 5161591693c7b415e9869157c711fe11263c95d74eDavid Liread_loop(_mesa_glsl_parse_state *st, s_list *list) 5171591693c7b415e9869157c711fe11263c95d74eDavid Li{ 5181591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 5191591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 6) { 5201591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (loop <counter> <from> <to> " 5211591693c7b415e9869157c711fe11263c95d74eDavid Li "<increment> <body>)"); 5221591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 5231591693c7b415e9869157c711fe11263c95d74eDavid Li } 5241591693c7b415e9869157c711fe11263c95d74eDavid Li 5251591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *count_expr = (s_expression*) list->subexpressions.head->next; 5261591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *from_expr = (s_expression*) count_expr->next; 5271591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *to_expr = (s_expression*) from_expr->next; 5281591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *inc_expr = (s_expression*) to_expr->next; 5291591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *body_expr = (s_expression*) inc_expr->next; 5301591693c7b415e9869157c711fe11263c95d74eDavid Li 5311591693c7b415e9869157c711fe11263c95d74eDavid Li // FINISHME: actually read the count/from/to fields. 5321591693c7b415e9869157c711fe11263c95d74eDavid Li 5331591693c7b415e9869157c711fe11263c95d74eDavid Li ir_loop *loop = new(ctx) ir_loop; 5341591693c7b415e9869157c711fe11263c95d74eDavid Li read_instructions(st, &loop->body_instructions, body_expr, loop); 5351591693c7b415e9869157c711fe11263c95d74eDavid Li if (st->error) { 5361591693c7b415e9869157c711fe11263c95d74eDavid Li delete loop; 5371591693c7b415e9869157c711fe11263c95d74eDavid Li loop = NULL; 5381591693c7b415e9869157c711fe11263c95d74eDavid Li } 5391591693c7b415e9869157c711fe11263c95d74eDavid Li return loop; 5401591693c7b415e9869157c711fe11263c95d74eDavid Li} 5411591693c7b415e9869157c711fe11263c95d74eDavid Li 5421591693c7b415e9869157c711fe11263c95d74eDavid Li 5431591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_return * 5441591693c7b415e9869157c711fe11263c95d74eDavid Liread_return(_mesa_glsl_parse_state *st, s_list *list) 5451591693c7b415e9869157c711fe11263c95d74eDavid Li{ 5461591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 5471591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 2) { 5481591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (return <rvalue>)"); 5491591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 5501591693c7b415e9869157c711fe11263c95d74eDavid Li } 5511591693c7b415e9869157c711fe11263c95d74eDavid Li 5521591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *expr = (s_expression*) list->subexpressions.head->next; 5531591693c7b415e9869157c711fe11263c95d74eDavid Li 5541591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *retval = read_rvalue(st, expr); 5551591693c7b415e9869157c711fe11263c95d74eDavid Li if (retval == NULL) { 5561591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading return value"); 5571591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 5581591693c7b415e9869157c711fe11263c95d74eDavid Li } 5591591693c7b415e9869157c711fe11263c95d74eDavid Li 5601591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_return(retval); 5611591693c7b415e9869157c711fe11263c95d74eDavid Li} 5621591693c7b415e9869157c711fe11263c95d74eDavid Li 5631591693c7b415e9869157c711fe11263c95d74eDavid Li 5641591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_rvalue * 5651591693c7b415e9869157c711fe11263c95d74eDavid Liread_rvalue(_mesa_glsl_parse_state *st, s_expression *expr) 5661591693c7b415e9869157c711fe11263c95d74eDavid Li{ 5671591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *list = SX_AS_LIST(expr); 5681591693c7b415e9869157c711fe11263c95d74eDavid Li if (list == NULL || list->subexpressions.is_empty()) 5691591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 5701591693c7b415e9869157c711fe11263c95d74eDavid Li 5711591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.get_head()); 5721591693c7b415e9869157c711fe11263c95d74eDavid Li if (tag == NULL) { 5731591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "expected rvalue tag"); 5741591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 5751591693c7b415e9869157c711fe11263c95d74eDavid Li } 5761591693c7b415e9869157c711fe11263c95d74eDavid Li 5771591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *rvalue = read_dereference(st, list); 5781591693c7b415e9869157c711fe11263c95d74eDavid Li if (rvalue != NULL || st->error) 5791591693c7b415e9869157c711fe11263c95d74eDavid Li return rvalue; 5801591693c7b415e9869157c711fe11263c95d74eDavid Li else if (strcmp(tag->value(), "swiz") == 0) { 5811591693c7b415e9869157c711fe11263c95d74eDavid Li rvalue = read_swizzle(st, list); 5821591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(tag->value(), "expression") == 0) { 5831591693c7b415e9869157c711fe11263c95d74eDavid Li rvalue = read_expression(st, list); 5841591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(tag->value(), "call") == 0) { 5851591693c7b415e9869157c711fe11263c95d74eDavid Li rvalue = read_call(st, list); 5861591693c7b415e9869157c711fe11263c95d74eDavid Li } else if (strcmp(tag->value(), "constant") == 0) { 5871591693c7b415e9869157c711fe11263c95d74eDavid Li rvalue = read_constant(st, list); 5881591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 5891591693c7b415e9869157c711fe11263c95d74eDavid Li rvalue = read_texture(st, list); 5901591693c7b415e9869157c711fe11263c95d74eDavid Li if (rvalue == NULL && !st->error) 5911591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "unrecognized rvalue tag: %s", tag->value()); 5921591693c7b415e9869157c711fe11263c95d74eDavid Li } 5931591693c7b415e9869157c711fe11263c95d74eDavid Li 5941591693c7b415e9869157c711fe11263c95d74eDavid Li return rvalue; 5951591693c7b415e9869157c711fe11263c95d74eDavid Li} 5961591693c7b415e9869157c711fe11263c95d74eDavid Li 5971591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_assignment * 5981591693c7b415e9869157c711fe11263c95d74eDavid Liread_assignment(_mesa_glsl_parse_state *st, s_list *list) 5991591693c7b415e9869157c711fe11263c95d74eDavid Li{ 6001591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 6011591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 5) { 6021591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (assign <condition> (<write mask>) " 6031591693c7b415e9869157c711fe11263c95d74eDavid Li "<lhs> <rhs>)"); 6041591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6051591693c7b415e9869157c711fe11263c95d74eDavid Li } 6061591693c7b415e9869157c711fe11263c95d74eDavid Li 6071591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *cond_expr = (s_expression*) list->subexpressions.head->next; 6081591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *mask_list = SX_AS_LIST(cond_expr->next); 6091591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *lhs_expr = (s_expression*) cond_expr->next->next; 6101591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *rhs_expr = (s_expression*) lhs_expr->next; 6111591693c7b415e9869157c711fe11263c95d74eDavid Li 6121591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *condition = read_rvalue(st, cond_expr); 6131591693c7b415e9869157c711fe11263c95d74eDavid Li if (condition == NULL) { 6141591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading condition of assignment"); 6151591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6161591693c7b415e9869157c711fe11263c95d74eDavid Li } 6171591693c7b415e9869157c711fe11263c95d74eDavid Li 6181591693c7b415e9869157c711fe11263c95d74eDavid Li if (mask_list == NULL || mask_list->length() > 1) { 6191591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, mask_list, "expected () or (<write mask>)"); 6201591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6211591693c7b415e9869157c711fe11263c95d74eDavid Li } 6221591693c7b415e9869157c711fe11263c95d74eDavid Li 6231591693c7b415e9869157c711fe11263c95d74eDavid Li unsigned mask = 0; 6241591693c7b415e9869157c711fe11263c95d74eDavid Li if (mask_list->length() == 1) { 6251591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *mask_symbol = SX_AS_SYMBOL(mask_list->subexpressions.head); 6261591693c7b415e9869157c711fe11263c95d74eDavid Li if (mask_symbol == NULL) { 6271591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected a write mask; found non-symbol"); 6281591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6291591693c7b415e9869157c711fe11263c95d74eDavid Li } 6301591693c7b415e9869157c711fe11263c95d74eDavid Li 6311591693c7b415e9869157c711fe11263c95d74eDavid Li const char *mask_str = mask_symbol->value(); 6321591693c7b415e9869157c711fe11263c95d74eDavid Li unsigned mask_length = strlen(mask_str); 6331591693c7b415e9869157c711fe11263c95d74eDavid Li if (mask_length > 4) { 6341591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "invalid write mask: %s", mask_str); 6351591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6361591693c7b415e9869157c711fe11263c95d74eDavid Li } 6371591693c7b415e9869157c711fe11263c95d74eDavid Li 6381591693c7b415e9869157c711fe11263c95d74eDavid Li const unsigned idx_map[] = { 3, 0, 1, 2 }; /* w=bit 3, x=0, y=1, z=2 */ 6391591693c7b415e9869157c711fe11263c95d74eDavid Li 6401591693c7b415e9869157c711fe11263c95d74eDavid Li for (unsigned i = 0; i < mask_length; i++) { 6411591693c7b415e9869157c711fe11263c95d74eDavid Li if (mask_str[i] < 'w' || mask_str[i] > 'z') { 6421591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "write mask contains invalid character: %c", 6431591693c7b415e9869157c711fe11263c95d74eDavid Li mask_str[i]); 6441591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6451591693c7b415e9869157c711fe11263c95d74eDavid Li } 6461591693c7b415e9869157c711fe11263c95d74eDavid Li mask |= 1 << idx_map[mask_str[i] - 'w']; 6471591693c7b415e9869157c711fe11263c95d74eDavid Li } 6481591693c7b415e9869157c711fe11263c95d74eDavid Li } 6491591693c7b415e9869157c711fe11263c95d74eDavid Li 6501591693c7b415e9869157c711fe11263c95d74eDavid Li ir_dereference *lhs = read_dereference(st, lhs_expr); 6511591693c7b415e9869157c711fe11263c95d74eDavid Li if (lhs == NULL) { 6521591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading left-hand side of assignment"); 6531591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6541591693c7b415e9869157c711fe11263c95d74eDavid Li } 6551591693c7b415e9869157c711fe11263c95d74eDavid Li 6561591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *rhs = read_rvalue(st, rhs_expr); 6571591693c7b415e9869157c711fe11263c95d74eDavid Li if (rhs == NULL) { 6581591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading right-hand side of assignment"); 6591591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6601591693c7b415e9869157c711fe11263c95d74eDavid Li } 6611591693c7b415e9869157c711fe11263c95d74eDavid Li 6621591693c7b415e9869157c711fe11263c95d74eDavid Li if (mask == 0 && (lhs->type->is_vector() || lhs->type->is_scalar())) { 6631591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "non-zero write mask required."); 6641591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6651591693c7b415e9869157c711fe11263c95d74eDavid Li } 6661591693c7b415e9869157c711fe11263c95d74eDavid Li 6671591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_assignment(lhs, rhs, condition, mask); 6681591693c7b415e9869157c711fe11263c95d74eDavid Li} 6691591693c7b415e9869157c711fe11263c95d74eDavid Li 6701591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_call * 6711591693c7b415e9869157c711fe11263c95d74eDavid Liread_call(_mesa_glsl_parse_state *st, s_list *list) 6721591693c7b415e9869157c711fe11263c95d74eDavid Li{ 6731591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 6741591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 3) { 6751591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (call <name> (<param> ...))"); 6761591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6771591693c7b415e9869157c711fe11263c95d74eDavid Li } 6781591693c7b415e9869157c711fe11263c95d74eDavid Li 6791591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *name = SX_AS_SYMBOL(list->subexpressions.head->next); 6801591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *params = SX_AS_LIST(list->subexpressions.head->next->next); 6811591693c7b415e9869157c711fe11263c95d74eDavid Li if (name == NULL || params == NULL) { 6821591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (call <name> (<param> ...))"); 6831591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6841591693c7b415e9869157c711fe11263c95d74eDavid Li } 6851591693c7b415e9869157c711fe11263c95d74eDavid Li 6861591693c7b415e9869157c711fe11263c95d74eDavid Li exec_list parameters; 6871591693c7b415e9869157c711fe11263c95d74eDavid Li 6881591693c7b415e9869157c711fe11263c95d74eDavid Li foreach_iter(exec_list_iterator, it, params->subexpressions) { 6891591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *expr = (s_expression*) it.get(); 6901591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *param = read_rvalue(st, expr); 6911591693c7b415e9869157c711fe11263c95d74eDavid Li if (param == NULL) { 6921591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "when reading parameter to function call"); 6931591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 6941591693c7b415e9869157c711fe11263c95d74eDavid Li } 6951591693c7b415e9869157c711fe11263c95d74eDavid Li parameters.push_tail(param); 6961591693c7b415e9869157c711fe11263c95d74eDavid Li } 6971591693c7b415e9869157c711fe11263c95d74eDavid Li 6981591693c7b415e9869157c711fe11263c95d74eDavid Li ir_function *f = st->symbols->get_function(name->value()); 6991591693c7b415e9869157c711fe11263c95d74eDavid Li if (f == NULL) { 7001591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "found call to undefined function %s", 7011591693c7b415e9869157c711fe11263c95d74eDavid Li name->value()); 7021591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7031591693c7b415e9869157c711fe11263c95d74eDavid Li } 7041591693c7b415e9869157c711fe11263c95d74eDavid Li 7051591693c7b415e9869157c711fe11263c95d74eDavid Li ir_function_signature *callee = f->matching_signature(¶meters); 7061591693c7b415e9869157c711fe11263c95d74eDavid Li if (callee == NULL) { 7071591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "couldn't find matching signature for function " 7081591693c7b415e9869157c711fe11263c95d74eDavid Li "%s", name->value()); 7091591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7101591693c7b415e9869157c711fe11263c95d74eDavid Li } 7111591693c7b415e9869157c711fe11263c95d74eDavid Li 7121591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_call(callee, ¶meters); 7131591693c7b415e9869157c711fe11263c95d74eDavid Li} 7141591693c7b415e9869157c711fe11263c95d74eDavid Li 7151591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_expression * 7161591693c7b415e9869157c711fe11263c95d74eDavid Liread_expression(_mesa_glsl_parse_state *st, s_list *list) 7171591693c7b415e9869157c711fe11263c95d74eDavid Li{ 7181591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 7191591693c7b415e9869157c711fe11263c95d74eDavid Li const unsigned list_length = list->length(); 7201591693c7b415e9869157c711fe11263c95d74eDavid Li if (list_length < 4) { 7211591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (expression <type> <operator> " 7221591693c7b415e9869157c711fe11263c95d74eDavid Li "<operand> [<operand>])"); 7231591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7241591693c7b415e9869157c711fe11263c95d74eDavid Li } 7251591693c7b415e9869157c711fe11263c95d74eDavid Li 7261591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *type_expr = (s_expression*) list->subexpressions.head->next; 7271591693c7b415e9869157c711fe11263c95d74eDavid Li const glsl_type *type = read_type(st, type_expr); 7281591693c7b415e9869157c711fe11263c95d74eDavid Li if (type == NULL) 7291591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7301591693c7b415e9869157c711fe11263c95d74eDavid Li 7311591693c7b415e9869157c711fe11263c95d74eDavid Li /* Read the operator */ 7321591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *op_sym = SX_AS_SYMBOL(type_expr->next); 7331591693c7b415e9869157c711fe11263c95d74eDavid Li if (op_sym == NULL) { 7341591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected operator, found non-symbol"); 7351591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7361591693c7b415e9869157c711fe11263c95d74eDavid Li } 7371591693c7b415e9869157c711fe11263c95d74eDavid Li 7381591693c7b415e9869157c711fe11263c95d74eDavid Li ir_expression_operation op = ir_expression::get_operator(op_sym->value()); 7391591693c7b415e9869157c711fe11263c95d74eDavid Li if (op == (ir_expression_operation) -1) { 7401591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "invalid operator: %s", op_sym->value()); 7411591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7421591693c7b415e9869157c711fe11263c95d74eDavid Li } 7431591693c7b415e9869157c711fe11263c95d74eDavid Li 7441591693c7b415e9869157c711fe11263c95d74eDavid Li /* Now that we know the operator, check for the right number of operands */ 7451591693c7b415e9869157c711fe11263c95d74eDavid Li if (ir_expression::get_num_operands(op) == 2) { 7461591693c7b415e9869157c711fe11263c95d74eDavid Li if (list_length != 5) { 7471591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (expression <type> %s <operand> " 7481591693c7b415e9869157c711fe11263c95d74eDavid Li " <operand>)", op_sym->value()); 7491591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7501591693c7b415e9869157c711fe11263c95d74eDavid Li } 7511591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 7521591693c7b415e9869157c711fe11263c95d74eDavid Li if (list_length != 4) { 7531591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (expression <type> %s <operand>)", 7541591693c7b415e9869157c711fe11263c95d74eDavid Li op_sym->value()); 7551591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7561591693c7b415e9869157c711fe11263c95d74eDavid Li } 7571591693c7b415e9869157c711fe11263c95d74eDavid Li } 7581591693c7b415e9869157c711fe11263c95d74eDavid Li 7591591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *exp1 = (s_expression*) (op_sym->next); 7601591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *arg1 = read_rvalue(st, exp1); 7611591693c7b415e9869157c711fe11263c95d74eDavid Li if (arg1 == NULL) { 7621591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading first operand of %s", 7631591693c7b415e9869157c711fe11263c95d74eDavid Li op_sym->value()); 7641591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7651591693c7b415e9869157c711fe11263c95d74eDavid Li } 7661591693c7b415e9869157c711fe11263c95d74eDavid Li 7671591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *arg2 = NULL; 7681591693c7b415e9869157c711fe11263c95d74eDavid Li if (ir_expression::get_num_operands(op) == 2) { 7691591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *exp2 = (s_expression*) (exp1->next); 7701591693c7b415e9869157c711fe11263c95d74eDavid Li arg2 = read_rvalue(st, exp2); 7711591693c7b415e9869157c711fe11263c95d74eDavid Li if (arg2 == NULL) { 7721591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading second operand of %s", 7731591693c7b415e9869157c711fe11263c95d74eDavid Li op_sym->value()); 7741591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7751591693c7b415e9869157c711fe11263c95d74eDavid Li } 7761591693c7b415e9869157c711fe11263c95d74eDavid Li } 7771591693c7b415e9869157c711fe11263c95d74eDavid Li 7781591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_expression(op, type, arg1, arg2); 7791591693c7b415e9869157c711fe11263c95d74eDavid Li} 7801591693c7b415e9869157c711fe11263c95d74eDavid Li 7811591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_swizzle * 7821591693c7b415e9869157c711fe11263c95d74eDavid Liread_swizzle(_mesa_glsl_parse_state *st, s_list *list) 7831591693c7b415e9869157c711fe11263c95d74eDavid Li{ 7841591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 3) { 7851591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (swiz <swizzle> <rvalue>)"); 7861591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7871591693c7b415e9869157c711fe11263c95d74eDavid Li } 7881591693c7b415e9869157c711fe11263c95d74eDavid Li 7891591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *swiz = SX_AS_SYMBOL(list->subexpressions.head->next); 7901591693c7b415e9869157c711fe11263c95d74eDavid Li if (swiz == NULL) { 7911591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected a valid swizzle; found non-symbol"); 7921591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7931591693c7b415e9869157c711fe11263c95d74eDavid Li } 7941591693c7b415e9869157c711fe11263c95d74eDavid Li 7951591693c7b415e9869157c711fe11263c95d74eDavid Li if (strlen(swiz->value()) > 4) { 7961591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected a valid swizzle; found %s", 7971591693c7b415e9869157c711fe11263c95d74eDavid Li swiz->value()); 7981591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 7991591693c7b415e9869157c711fe11263c95d74eDavid Li } 8001591693c7b415e9869157c711fe11263c95d74eDavid Li 8011591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *sub = (s_expression*) swiz->next; 8021591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *rvalue = read_rvalue(st, sub); 8031591693c7b415e9869157c711fe11263c95d74eDavid Li if (rvalue == NULL) 8041591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8051591693c7b415e9869157c711fe11263c95d74eDavid Li 8061591693c7b415e9869157c711fe11263c95d74eDavid Li ir_swizzle *ir = ir_swizzle::create(rvalue, swiz->value(), 8071591693c7b415e9869157c711fe11263c95d74eDavid Li rvalue->type->vector_elements); 8081591693c7b415e9869157c711fe11263c95d74eDavid Li if (ir == NULL) 8091591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "invalid swizzle"); 8101591693c7b415e9869157c711fe11263c95d74eDavid Li 8111591693c7b415e9869157c711fe11263c95d74eDavid Li return ir; 8121591693c7b415e9869157c711fe11263c95d74eDavid Li} 8131591693c7b415e9869157c711fe11263c95d74eDavid Li 8141591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_constant * 8151591693c7b415e9869157c711fe11263c95d74eDavid Liread_constant(_mesa_glsl_parse_state *st, s_list *list) 8161591693c7b415e9869157c711fe11263c95d74eDavid Li{ 8171591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 8181591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 3) { 8191591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (constant <type> (...))"); 8201591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8211591693c7b415e9869157c711fe11263c95d74eDavid Li } 8221591693c7b415e9869157c711fe11263c95d74eDavid Li 8231591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *type_expr = (s_expression*) list->subexpressions.head->next; 8241591693c7b415e9869157c711fe11263c95d74eDavid Li const glsl_type *type = read_type(st, type_expr); 8251591693c7b415e9869157c711fe11263c95d74eDavid Li if (type == NULL) 8261591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8271591693c7b415e9869157c711fe11263c95d74eDavid Li 8281591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *values = SX_AS_LIST(type_expr->next); 8291591693c7b415e9869157c711fe11263c95d74eDavid Li if (values == NULL) { 8301591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (constant <type> (...))"); 8311591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8321591693c7b415e9869157c711fe11263c95d74eDavid Li } 8331591693c7b415e9869157c711fe11263c95d74eDavid Li 8341591693c7b415e9869157c711fe11263c95d74eDavid Li if (type->is_array()) { 8351591693c7b415e9869157c711fe11263c95d74eDavid Li const unsigned elements_supplied = values->length(); 8361591693c7b415e9869157c711fe11263c95d74eDavid Li if (elements_supplied != type->length) { 8371591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, values, "expected exactly %u array elements, " 8381591693c7b415e9869157c711fe11263c95d74eDavid Li "given %u", type->length, elements_supplied); 8391591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8401591693c7b415e9869157c711fe11263c95d74eDavid Li } 8411591693c7b415e9869157c711fe11263c95d74eDavid Li 8421591693c7b415e9869157c711fe11263c95d74eDavid Li exec_list elements; 8431591693c7b415e9869157c711fe11263c95d74eDavid Li foreach_iter(exec_list_iterator, it, values->subexpressions) { 8441591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *expr = (s_expression *) it.get(); 8451591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *elt = SX_AS_LIST(expr); 8461591693c7b415e9869157c711fe11263c95d74eDavid Li if (elt == NULL) { 8471591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, expr, "expected (constant ...) array element"); 8481591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8491591693c7b415e9869157c711fe11263c95d74eDavid Li } 8501591693c7b415e9869157c711fe11263c95d74eDavid Li 8511591693c7b415e9869157c711fe11263c95d74eDavid Li ir_constant *ir_elt = read_constant(st, elt); 8521591693c7b415e9869157c711fe11263c95d74eDavid Li if (ir_elt == NULL) 8531591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8541591693c7b415e9869157c711fe11263c95d74eDavid Li elements.push_tail(ir_elt); 8551591693c7b415e9869157c711fe11263c95d74eDavid Li } 8561591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_constant(type, &elements); 8571591693c7b415e9869157c711fe11263c95d74eDavid Li } 8581591693c7b415e9869157c711fe11263c95d74eDavid Li 8591591693c7b415e9869157c711fe11263c95d74eDavid Li const glsl_type *const base_type = type->get_base_type(); 8601591693c7b415e9869157c711fe11263c95d74eDavid Li 8611591693c7b415e9869157c711fe11263c95d74eDavid Li ir_constant_data data = { { 0 } }; 8621591693c7b415e9869157c711fe11263c95d74eDavid Li 8631591693c7b415e9869157c711fe11263c95d74eDavid Li // Read in list of values (at most 16). 8641591693c7b415e9869157c711fe11263c95d74eDavid Li int k = 0; 8651591693c7b415e9869157c711fe11263c95d74eDavid Li foreach_iter(exec_list_iterator, it, values->subexpressions) { 8661591693c7b415e9869157c711fe11263c95d74eDavid Li if (k >= 16) { 8671591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, values, "expected at most 16 numbers"); 8681591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8691591693c7b415e9869157c711fe11263c95d74eDavid Li } 8701591693c7b415e9869157c711fe11263c95d74eDavid Li 8711591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *expr = (s_expression*) it.get(); 8721591693c7b415e9869157c711fe11263c95d74eDavid Li 8731591693c7b415e9869157c711fe11263c95d74eDavid Li if (base_type->base_type == GLSL_TYPE_FLOAT) { 8741591693c7b415e9869157c711fe11263c95d74eDavid Li s_number *value = SX_AS_NUMBER(expr); 8751591693c7b415e9869157c711fe11263c95d74eDavid Li if (value == NULL) { 8761591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, values, "expected numbers"); 8771591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8781591693c7b415e9869157c711fe11263c95d74eDavid Li } 8791591693c7b415e9869157c711fe11263c95d74eDavid Li data.f[k] = value->fvalue(); 8801591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 8811591693c7b415e9869157c711fe11263c95d74eDavid Li s_int *value = SX_AS_INT(expr); 8821591693c7b415e9869157c711fe11263c95d74eDavid Li if (value == NULL) { 8831591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, values, "expected integers"); 8841591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 8851591693c7b415e9869157c711fe11263c95d74eDavid Li } 8861591693c7b415e9869157c711fe11263c95d74eDavid Li 8871591693c7b415e9869157c711fe11263c95d74eDavid Li switch (base_type->base_type) { 8881591693c7b415e9869157c711fe11263c95d74eDavid Li case GLSL_TYPE_UINT: { 8891591693c7b415e9869157c711fe11263c95d74eDavid Li data.u[k] = value->value(); 8901591693c7b415e9869157c711fe11263c95d74eDavid Li break; 8911591693c7b415e9869157c711fe11263c95d74eDavid Li } 8921591693c7b415e9869157c711fe11263c95d74eDavid Li case GLSL_TYPE_INT: { 8931591693c7b415e9869157c711fe11263c95d74eDavid Li data.i[k] = value->value(); 8941591693c7b415e9869157c711fe11263c95d74eDavid Li break; 8951591693c7b415e9869157c711fe11263c95d74eDavid Li } 8961591693c7b415e9869157c711fe11263c95d74eDavid Li case GLSL_TYPE_BOOL: { 8971591693c7b415e9869157c711fe11263c95d74eDavid Li data.b[k] = value->value(); 8981591693c7b415e9869157c711fe11263c95d74eDavid Li break; 8991591693c7b415e9869157c711fe11263c95d74eDavid Li } 9001591693c7b415e9869157c711fe11263c95d74eDavid Li default: 9011591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, values, "unsupported constant type"); 9021591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9031591693c7b415e9869157c711fe11263c95d74eDavid Li } 9041591693c7b415e9869157c711fe11263c95d74eDavid Li } 9051591693c7b415e9869157c711fe11263c95d74eDavid Li ++k; 9061591693c7b415e9869157c711fe11263c95d74eDavid Li } 9071591693c7b415e9869157c711fe11263c95d74eDavid Li 9081591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_constant(type, &data); 9091591693c7b415e9869157c711fe11263c95d74eDavid Li} 9101591693c7b415e9869157c711fe11263c95d74eDavid Li 9111591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_dereference * 9121591693c7b415e9869157c711fe11263c95d74eDavid Liread_dereference(_mesa_glsl_parse_state *st, s_expression *expr) 9131591693c7b415e9869157c711fe11263c95d74eDavid Li{ 9141591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *list = SX_AS_LIST(expr); 9151591693c7b415e9869157c711fe11263c95d74eDavid Li if (list == NULL || list->subexpressions.is_empty()) 9161591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9171591693c7b415e9869157c711fe11263c95d74eDavid Li 9181591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.head); 9191591693c7b415e9869157c711fe11263c95d74eDavid Li assert(tag != NULL); 9201591693c7b415e9869157c711fe11263c95d74eDavid Li 9211591693c7b415e9869157c711fe11263c95d74eDavid Li if (strcmp(tag->value(), "var_ref") == 0) 9221591693c7b415e9869157c711fe11263c95d74eDavid Li return read_var_ref(st, list); 9231591693c7b415e9869157c711fe11263c95d74eDavid Li if (strcmp(tag->value(), "array_ref") == 0) 9241591693c7b415e9869157c711fe11263c95d74eDavid Li return read_array_ref(st, list); 9251591693c7b415e9869157c711fe11263c95d74eDavid Li if (strcmp(tag->value(), "record_ref") == 0) 9261591693c7b415e9869157c711fe11263c95d74eDavid Li return read_record_ref(st, list); 9271591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9281591693c7b415e9869157c711fe11263c95d74eDavid Li} 9291591693c7b415e9869157c711fe11263c95d74eDavid Li 9301591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_dereference_variable * 9311591693c7b415e9869157c711fe11263c95d74eDavid Liread_var_ref(_mesa_glsl_parse_state *st, s_list *list) 9321591693c7b415e9869157c711fe11263c95d74eDavid Li{ 9331591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 9341591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 2) { 9351591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (var_ref <variable name>)"); 9361591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9371591693c7b415e9869157c711fe11263c95d74eDavid Li } 9381591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *var_name = SX_AS_SYMBOL(list->subexpressions.head->next); 9391591693c7b415e9869157c711fe11263c95d74eDavid Li if (var_name == NULL) { 9401591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (var_ref <variable name>)"); 9411591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9421591693c7b415e9869157c711fe11263c95d74eDavid Li } 9431591693c7b415e9869157c711fe11263c95d74eDavid Li 9441591693c7b415e9869157c711fe11263c95d74eDavid Li ir_variable *var = st->symbols->get_variable(var_name->value()); 9451591693c7b415e9869157c711fe11263c95d74eDavid Li if (var == NULL) { 9461591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "undeclared variable: %s", var_name->value()); 9471591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9481591693c7b415e9869157c711fe11263c95d74eDavid Li } 9491591693c7b415e9869157c711fe11263c95d74eDavid Li 9501591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_dereference_variable(var); 9511591693c7b415e9869157c711fe11263c95d74eDavid Li} 9521591693c7b415e9869157c711fe11263c95d74eDavid Li 9531591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_dereference_array * 9541591693c7b415e9869157c711fe11263c95d74eDavid Liread_array_ref(_mesa_glsl_parse_state *st, s_list *list) 9551591693c7b415e9869157c711fe11263c95d74eDavid Li{ 9561591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 9571591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 3) { 9581591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (array_ref <rvalue> <index>)"); 9591591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9601591693c7b415e9869157c711fe11263c95d74eDavid Li } 9611591693c7b415e9869157c711fe11263c95d74eDavid Li 9621591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *subj_expr = (s_expression*) list->subexpressions.head->next; 9631591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *subject = read_rvalue(st, subj_expr); 9641591693c7b415e9869157c711fe11263c95d74eDavid Li if (subject == NULL) { 9651591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading the subject of an array_ref"); 9661591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9671591693c7b415e9869157c711fe11263c95d74eDavid Li } 9681591693c7b415e9869157c711fe11263c95d74eDavid Li 9691591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *idx_expr = (s_expression*) subj_expr->next; 9701591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *idx = read_rvalue(st, idx_expr); 9711591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_dereference_array(subject, idx); 9721591693c7b415e9869157c711fe11263c95d74eDavid Li} 9731591693c7b415e9869157c711fe11263c95d74eDavid Li 9741591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_dereference_record * 9751591693c7b415e9869157c711fe11263c95d74eDavid Liread_record_ref(_mesa_glsl_parse_state *st, s_list *list) 9761591693c7b415e9869157c711fe11263c95d74eDavid Li{ 9771591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 9781591693c7b415e9869157c711fe11263c95d74eDavid Li if (list->length() != 3) { 9791591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (record_ref <rvalue> <field>)"); 9801591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9811591693c7b415e9869157c711fe11263c95d74eDavid Li } 9821591693c7b415e9869157c711fe11263c95d74eDavid Li 9831591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *subj_expr = (s_expression*) list->subexpressions.head->next; 9841591693c7b415e9869157c711fe11263c95d74eDavid Li ir_rvalue *subject = read_rvalue(st, subj_expr); 9851591693c7b415e9869157c711fe11263c95d74eDavid Li if (subject == NULL) { 9861591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading the subject of a record_ref"); 9871591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9881591693c7b415e9869157c711fe11263c95d74eDavid Li } 9891591693c7b415e9869157c711fe11263c95d74eDavid Li 9901591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *field = SX_AS_SYMBOL(subj_expr->next); 9911591693c7b415e9869157c711fe11263c95d74eDavid Li if (field == NULL) { 9921591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, list, "expected (record_ref ... <field name>)"); 9931591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 9941591693c7b415e9869157c711fe11263c95d74eDavid Li } 9951591693c7b415e9869157c711fe11263c95d74eDavid Li return new(ctx) ir_dereference_record(subject, field->value()); 9961591693c7b415e9869157c711fe11263c95d74eDavid Li} 9971591693c7b415e9869157c711fe11263c95d74eDavid Li 9981591693c7b415e9869157c711fe11263c95d74eDavid Listatic bool 9991591693c7b415e9869157c711fe11263c95d74eDavid Livalid_texture_list_length(ir_texture_opcode op, s_list *list) 10001591693c7b415e9869157c711fe11263c95d74eDavid Li{ 10011591693c7b415e9869157c711fe11263c95d74eDavid Li unsigned required_length = 7; 10021591693c7b415e9869157c711fe11263c95d74eDavid Li if (op == ir_txf) 10031591693c7b415e9869157c711fe11263c95d74eDavid Li required_length = 5; 10041591693c7b415e9869157c711fe11263c95d74eDavid Li else if (op == ir_tex) 10051591693c7b415e9869157c711fe11263c95d74eDavid Li required_length = 6; 10061591693c7b415e9869157c711fe11263c95d74eDavid Li 10071591693c7b415e9869157c711fe11263c95d74eDavid Li return list->length() == required_length; 10081591693c7b415e9869157c711fe11263c95d74eDavid Li} 10091591693c7b415e9869157c711fe11263c95d74eDavid Li 10101591693c7b415e9869157c711fe11263c95d74eDavid Listatic ir_texture * 10111591693c7b415e9869157c711fe11263c95d74eDavid Liread_texture(_mesa_glsl_parse_state *st, s_list *list) 10121591693c7b415e9869157c711fe11263c95d74eDavid Li{ 10131591693c7b415e9869157c711fe11263c95d74eDavid Li void *ctx = st; 10141591693c7b415e9869157c711fe11263c95d74eDavid Li s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.head); 10151591693c7b415e9869157c711fe11263c95d74eDavid Li assert(tag != NULL); 10161591693c7b415e9869157c711fe11263c95d74eDavid Li 10171591693c7b415e9869157c711fe11263c95d74eDavid Li ir_texture_opcode op = ir_texture::get_opcode(tag->value()); 10181591693c7b415e9869157c711fe11263c95d74eDavid Li if (op == (ir_texture_opcode) -1) 10191591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10201591693c7b415e9869157c711fe11263c95d74eDavid Li 10211591693c7b415e9869157c711fe11263c95d74eDavid Li if (!valid_texture_list_length(op, list)) { 10221591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "invalid list size in (%s ...)", tag->value()); 10231591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10241591693c7b415e9869157c711fe11263c95d74eDavid Li } 10251591693c7b415e9869157c711fe11263c95d74eDavid Li 10261591693c7b415e9869157c711fe11263c95d74eDavid Li ir_texture *tex = new(ctx) ir_texture(op); 10271591693c7b415e9869157c711fe11263c95d74eDavid Li 10281591693c7b415e9869157c711fe11263c95d74eDavid Li // Read sampler (must be a deref) 10291591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *sampler_expr = (s_expression *) tag->next; 10301591693c7b415e9869157c711fe11263c95d74eDavid Li ir_dereference *sampler = read_dereference(st, sampler_expr); 10311591693c7b415e9869157c711fe11263c95d74eDavid Li if (sampler == NULL) { 10321591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading sampler in (%s ...)", tag->value()); 10331591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10341591693c7b415e9869157c711fe11263c95d74eDavid Li } 10351591693c7b415e9869157c711fe11263c95d74eDavid Li tex->set_sampler(sampler); 10361591693c7b415e9869157c711fe11263c95d74eDavid Li 10371591693c7b415e9869157c711fe11263c95d74eDavid Li // Read coordinate (any rvalue) 10381591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *coordinate_expr = (s_expression *) sampler_expr->next; 10391591693c7b415e9869157c711fe11263c95d74eDavid Li tex->coordinate = read_rvalue(st, coordinate_expr); 10401591693c7b415e9869157c711fe11263c95d74eDavid Li if (tex->coordinate == NULL) { 10411591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading coordinate in (%s ...)", 10421591693c7b415e9869157c711fe11263c95d74eDavid Li tag->value()); 10431591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10441591693c7b415e9869157c711fe11263c95d74eDavid Li } 10451591693c7b415e9869157c711fe11263c95d74eDavid Li 10461591693c7b415e9869157c711fe11263c95d74eDavid Li // Read texel offset, i.e. (0 0 0) 10471591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *offset_list = SX_AS_LIST(coordinate_expr->next); 10481591693c7b415e9869157c711fe11263c95d74eDavid Li if (offset_list == NULL || offset_list->length() != 3) { 10491591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, offset_list, "expected (<int> <int> <int>)"); 10501591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10511591693c7b415e9869157c711fe11263c95d74eDavid Li } 10521591693c7b415e9869157c711fe11263c95d74eDavid Li s_int *offset_x = SX_AS_INT(offset_list->subexpressions.head); 10531591693c7b415e9869157c711fe11263c95d74eDavid Li s_int *offset_y = SX_AS_INT(offset_list->subexpressions.head->next); 10541591693c7b415e9869157c711fe11263c95d74eDavid Li s_int *offset_z = SX_AS_INT(offset_list->subexpressions.head->next->next); 10551591693c7b415e9869157c711fe11263c95d74eDavid Li if (offset_x == NULL || offset_y == NULL || offset_z == NULL) { 10561591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, offset_list, "expected (<int> <int> <int>)"); 10571591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10581591693c7b415e9869157c711fe11263c95d74eDavid Li } 10591591693c7b415e9869157c711fe11263c95d74eDavid Li tex->offsets[0] = offset_x->value(); 10601591693c7b415e9869157c711fe11263c95d74eDavid Li tex->offsets[1] = offset_y->value(); 10611591693c7b415e9869157c711fe11263c95d74eDavid Li tex->offsets[2] = offset_z->value(); 10621591693c7b415e9869157c711fe11263c95d74eDavid Li 10631591693c7b415e9869157c711fe11263c95d74eDavid Li if (op == ir_txf) { 10641591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *lod_expr = (s_expression *) offset_list->next; 10651591693c7b415e9869157c711fe11263c95d74eDavid Li tex->lod_info.lod = read_rvalue(st, lod_expr); 10661591693c7b415e9869157c711fe11263c95d74eDavid Li if (tex->lod_info.lod == NULL) { 10671591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading LOD in (txf ...)"); 10681591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10691591693c7b415e9869157c711fe11263c95d74eDavid Li } 10701591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 10711591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *proj_expr = (s_expression *) offset_list->next; 10721591693c7b415e9869157c711fe11263c95d74eDavid Li s_int *proj_as_int = SX_AS_INT(proj_expr); 10731591693c7b415e9869157c711fe11263c95d74eDavid Li if (proj_as_int && proj_as_int->value() == 1) { 10741591693c7b415e9869157c711fe11263c95d74eDavid Li tex->projector = NULL; 10751591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 10761591693c7b415e9869157c711fe11263c95d74eDavid Li tex->projector = read_rvalue(st, proj_expr); 10771591693c7b415e9869157c711fe11263c95d74eDavid Li if (tex->projector == NULL) { 10781591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading projective divide in (%s ..)", 10791591693c7b415e9869157c711fe11263c95d74eDavid Li tag->value()); 10801591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10811591693c7b415e9869157c711fe11263c95d74eDavid Li } 10821591693c7b415e9869157c711fe11263c95d74eDavid Li } 10831591693c7b415e9869157c711fe11263c95d74eDavid Li 10841591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *shadow_list = SX_AS_LIST(proj_expr->next); 10851591693c7b415e9869157c711fe11263c95d74eDavid Li if (shadow_list == NULL) { 10861591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "shadow comparitor must be a list"); 10871591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10881591693c7b415e9869157c711fe11263c95d74eDavid Li } 10891591693c7b415e9869157c711fe11263c95d74eDavid Li if (shadow_list->subexpressions.is_empty()) { 10901591693c7b415e9869157c711fe11263c95d74eDavid Li tex->shadow_comparitor= NULL; 10911591693c7b415e9869157c711fe11263c95d74eDavid Li } else { 10921591693c7b415e9869157c711fe11263c95d74eDavid Li tex->shadow_comparitor = read_rvalue(st, shadow_list); 10931591693c7b415e9869157c711fe11263c95d74eDavid Li if (tex->shadow_comparitor == NULL) { 10941591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading shadow comparitor in (%s ..)", 10951591693c7b415e9869157c711fe11263c95d74eDavid Li tag->value()); 10961591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 10971591693c7b415e9869157c711fe11263c95d74eDavid Li } 10981591693c7b415e9869157c711fe11263c95d74eDavid Li } 10991591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *lod_expr = (s_expression *) shadow_list->next; 11001591693c7b415e9869157c711fe11263c95d74eDavid Li 11011591693c7b415e9869157c711fe11263c95d74eDavid Li switch (op) { 11021591693c7b415e9869157c711fe11263c95d74eDavid Li case ir_txb: 11031591693c7b415e9869157c711fe11263c95d74eDavid Li tex->lod_info.bias = read_rvalue(st, lod_expr); 11041591693c7b415e9869157c711fe11263c95d74eDavid Li if (tex->lod_info.bias == NULL) { 11051591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading LOD bias in (txb ...)"); 11061591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 11071591693c7b415e9869157c711fe11263c95d74eDavid Li } 11081591693c7b415e9869157c711fe11263c95d74eDavid Li break; 11091591693c7b415e9869157c711fe11263c95d74eDavid Li case ir_txl: 11101591693c7b415e9869157c711fe11263c95d74eDavid Li tex->lod_info.lod = read_rvalue(st, lod_expr); 11111591693c7b415e9869157c711fe11263c95d74eDavid Li if (tex->lod_info.lod == NULL) { 11121591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading LOD in (txl ...)"); 11131591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 11141591693c7b415e9869157c711fe11263c95d74eDavid Li } 11151591693c7b415e9869157c711fe11263c95d74eDavid Li break; 11161591693c7b415e9869157c711fe11263c95d74eDavid Li case ir_txd: { 11171591693c7b415e9869157c711fe11263c95d74eDavid Li s_list *lod_list = SX_AS_LIST(lod_expr); 11181591693c7b415e9869157c711fe11263c95d74eDavid Li if (lod_list->length() != 2) { 11191591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, lod_expr, "expected (dPdx dPdy) in (txd ...)"); 11201591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 11211591693c7b415e9869157c711fe11263c95d74eDavid Li } 11221591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *dx_expr = (s_expression *) lod_list->subexpressions.head; 11231591693c7b415e9869157c711fe11263c95d74eDavid Li s_expression *dy_expr = (s_expression *) dx_expr->next; 11241591693c7b415e9869157c711fe11263c95d74eDavid Li 11251591693c7b415e9869157c711fe11263c95d74eDavid Li tex->lod_info.grad.dPdx = read_rvalue(st, dx_expr); 11261591693c7b415e9869157c711fe11263c95d74eDavid Li if (tex->lod_info.grad.dPdx == NULL) { 11271591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading dPdx in (txd ...)"); 11281591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 11291591693c7b415e9869157c711fe11263c95d74eDavid Li } 11301591693c7b415e9869157c711fe11263c95d74eDavid Li tex->lod_info.grad.dPdy = read_rvalue(st, dy_expr); 11311591693c7b415e9869157c711fe11263c95d74eDavid Li if (tex->lod_info.grad.dPdy == NULL) { 11321591693c7b415e9869157c711fe11263c95d74eDavid Li ir_read_error(st, NULL, "when reading dPdy in (txd ...)"); 11331591693c7b415e9869157c711fe11263c95d74eDavid Li return NULL; 11341591693c7b415e9869157c711fe11263c95d74eDavid Li } 11351591693c7b415e9869157c711fe11263c95d74eDavid Li break; 11361591693c7b415e9869157c711fe11263c95d74eDavid Li } 11371591693c7b415e9869157c711fe11263c95d74eDavid Li default: 11381591693c7b415e9869157c711fe11263c95d74eDavid Li // tex doesn't have any extra parameters and txf was handled earlier. 11391591693c7b415e9869157c711fe11263c95d74eDavid Li break; 11401591693c7b415e9869157c711fe11263c95d74eDavid Li }; 11411591693c7b415e9869157c711fe11263c95d74eDavid Li } 11421591693c7b415e9869157c711fe11263c95d74eDavid Li return tex; 11431591693c7b415e9869157c711fe11263c95d74eDavid Li} 1144