ir_reader.cpp revision e8f5ebf313da3ce33ccbbcf9b72946853035fbdd
134350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke/* 234350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * Copyright © 2010 Intel Corporation 334350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * 434350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * Permission is hereby granted, free of charge, to any person obtaining a 534350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * copy of this software and associated documentation files (the "Software"), 634350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * to deal in the Software without restriction, including without limitation 734350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * the rights to use, copy, modify, merge, publish, distribute, sublicense, 834350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * and/or sell copies of the Software, and to permit persons to whom the 934350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * Software is furnished to do so, subject to the following conditions: 1034350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * 1134350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * The above copyright notice and this permission notice (including the next 1234350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * paragraph) shall be included in all copies or substantial portions of the 1334350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * Software. 1434350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * 1534350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1634350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1734350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 1834350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 1934350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 2034350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 2134350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke * DEALINGS IN THE SOFTWARE. 2234350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke */ 23ac95f2f8c88d39aaa878f61172d9748af13e2c80Eric Anholt 2434350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke#include <cstdarg> 25b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke 26b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunkeextern "C" { 27b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke#include <talloc.h> 28b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke} 29b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke 3034350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke#include "ir_reader.h" 3134350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke#include "glsl_parser_extras.h" 3234350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke#include "glsl_types.h" 3334350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke#include "s_expression.h" 3434350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke 359a3df46fbcfbad10163686ae4c034a3a55116947Kenneth Graunkeconst static bool debug = false; 369a3df46fbcfbad10163686ae4c034a3a55116947Kenneth Graunke 374ec982fb86ae2476508d2027464241489243a170Kenneth Graunkestatic void ir_read_error(_mesa_glsl_parse_state *, s_expression *, 384ec982fb86ae2476508d2027464241489243a170Kenneth Graunke const char *fmt, ...); 3957944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunkestatic const glsl_type *read_type(_mesa_glsl_parse_state *, s_expression *); 40d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 4109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunkestatic void scan_for_prototypes(_mesa_glsl_parse_state *, exec_list *, 4209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_expression *); 438df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunkestatic ir_function *read_function(_mesa_glsl_parse_state *, s_list *, 448df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke bool skip_body); 45b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunkestatic void read_function_sig(_mesa_glsl_parse_state *, ir_function *, 46b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke s_list *, bool skip_body); 4709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 483ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunkestatic void read_instructions(_mesa_glsl_parse_state *, exec_list *, 49396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke s_expression *, ir_loop *); 50d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkestatic ir_instruction *read_instruction(_mesa_glsl_parse_state *, 51396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke s_expression *, ir_loop *); 52d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkestatic ir_variable *read_declaration(_mesa_glsl_parse_state *, s_list *); 53396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunkestatic ir_if *read_if(_mesa_glsl_parse_state *, s_list *, ir_loop *); 5432b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunkestatic ir_loop *read_loop(_mesa_glsl_parse_state *st, s_list *list); 559d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunkestatic ir_return *read_return(_mesa_glsl_parse_state *, s_list *); 56d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 57f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_rvalue *read_rvalue(_mesa_glsl_parse_state *, s_expression *); 58f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_assignment *read_assignment(_mesa_glsl_parse_state *, s_list *); 59f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_expression *read_expression(_mesa_glsl_parse_state *, s_list *); 60b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunkestatic ir_call *read_call(_mesa_glsl_parse_state *, s_list *); 61f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_swizzle *read_swizzle(_mesa_glsl_parse_state *, s_list *); 62f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_constant *read_constant(_mesa_glsl_parse_state *, s_list *); 63dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunkestatic ir_texture *read_texture(_mesa_glsl_parse_state *, s_list *); 643c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke 653c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunkestatic ir_dereference *read_dereference(_mesa_glsl_parse_state *, 663c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke s_expression *); 670fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkestatic ir_dereference_variable * 680fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkeread_var_ref(_mesa_glsl_parse_state *, s_list *); 690fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkestatic ir_dereference_array * 700fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkeread_array_ref(_mesa_glsl_parse_state *, s_list *); 710fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkestatic ir_dereference_record * 720fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkeread_record_ref(_mesa_glsl_parse_state *, s_list *); 73f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 7434350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunkevoid 7534350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke_mesa_glsl_read_ir(_mesa_glsl_parse_state *state, exec_list *instructions, 7643ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke const char *src, bool scan_for_protos) 7734350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke{ 7878062273de65bf8133f2550aa2a26040a82a65aaKenneth Graunke s_expression *expr = s_expression::read_expression(state, src); 7934350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke if (expr == NULL) { 804ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(state, NULL, "couldn't parse S-Expression."); 8134350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke return; 8234350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke } 8334350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke 8443ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke if (scan_for_protos) { 8543ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke scan_for_prototypes(state, instructions, expr); 8643ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke if (state->error) 8743ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke return; 8843ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke } 8909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 90396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke read_instructions(state, instructions, expr, NULL); 9178062273de65bf8133f2550aa2a26040a82a65aaKenneth Graunke talloc_free(expr); 9279088746a231d361232fc87ab4d578b08c7ce2a7Kenneth Graunke 939a3df46fbcfbad10163686ae4c034a3a55116947Kenneth Graunke if (debug) 949a3df46fbcfbad10163686ae4c034a3a55116947Kenneth Graunke validate_ir_tree(instructions); 9534350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke} 9634350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke 97f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic void 984ec982fb86ae2476508d2027464241489243a170Kenneth Graunkeir_read_error(_mesa_glsl_parse_state *state, s_expression *expr, 994ec982fb86ae2476508d2027464241489243a170Kenneth Graunke const char *fmt, ...) 100f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 101f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke va_list ap; 102f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 1034ec982fb86ae2476508d2027464241489243a170Kenneth Graunke state->error = true; 104f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 105a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke if (state->current_function != NULL) 106a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke state->info_log = talloc_asprintf_append(state->info_log, 107a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke "In function %s:\n", 108a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke state->current_function->function_name()); 109b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_strdup_append(state->info_log, "error: "); 110f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 111f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke va_start(ap, fmt); 112b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_vasprintf_append(state->info_log, fmt, ap); 113f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke va_end(ap); 114b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_strdup_append(state->info_log, "\n"); 115f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 11646a223224c55eaed7bf634d901f733098e674457Kenneth Graunke if (expr != NULL) { 117b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_strdup_append(state->info_log, 118b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke "...in this context:\n "); 11946a223224c55eaed7bf634d901f733098e674457Kenneth Graunke expr->print(); 120b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_strdup_append(state->info_log, "\n\n"); 12146a223224c55eaed7bf634d901f733098e674457Kenneth Graunke } 122f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 123f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 12457944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunkestatic const glsl_type * 125f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_type(_mesa_glsl_parse_state *st, s_expression *expr) 126f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 127f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_list *list = SX_AS_LIST(expr); 128f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list != NULL) { 129f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *type_sym = SX_AS_SYMBOL(list->subexpressions.get_head()); 130f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type_sym == NULL) { 1314ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected type (array ...) or (struct ...)"); 132f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 133f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 13457944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke if (strcmp(type_sym->value(), "array") == 0) { 13557944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke if (list->length() != 3) { 1364ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected type (array <type> <int>)"); 13757944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke return NULL; 13857944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } 13957944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke 14057944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke // Read base type 14157944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke s_expression *base_expr = (s_expression*) type_sym->next; 14257944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *base_type = read_type(st, base_expr); 14357944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke if (base_type == NULL) { 14446a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading base type of array"); 14557944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke return NULL; 14657944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } 14757944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke 14857944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke // Read array size 14957944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke s_int *size = SX_AS_INT(base_expr->next); 15057944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke if (size == NULL) { 1514ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "found non-integer array size"); 15257944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke return NULL; 15357944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } 15457944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke 155f38d15b80d4e4c8ecb7a76087cdc49835f0aa271Ian Romanick return glsl_type::get_array_instance(base_type, size->value()); 15657944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } else if (strcmp(type_sym->value(), "struct") == 0) { 157f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke assert(false); // FINISHME 15857944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } else { 1594ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected (array ...) or (struct ...); " 1604ec982fb86ae2476508d2027464241489243a170Kenneth Graunke "found (%s ...)", type_sym->value()); 16157944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke return NULL; 16257944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } 163f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 164f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 165f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *type_sym = SX_AS_SYMBOL(expr); 166f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type_sym == NULL) { 1674ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected <type> (symbol or list)"); 168f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 169f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 170f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 17157944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *type = st->symbols->get_type(type_sym->value()); 172f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type == NULL) 1734ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "invalid type: %s", type_sym->value()); 174f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 175f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return type; 176f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 177f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 178d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 1793ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunkestatic void 18009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunkescan_for_prototypes(_mesa_glsl_parse_state *st, exec_list *instructions, 18109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_expression *expr) 18209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke{ 18309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *list = SX_AS_LIST(expr); 18409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (list == NULL) { 18509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, expr, "Expected (<instruction> ...); found an atom."); 18609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke return; 18709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 18809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 18909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke foreach_iter(exec_list_iterator, it, list->subexpressions) { 19009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *sub = SX_AS_LIST(it.get()); 19109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (sub == NULL) 19209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke continue; // not a (function ...); ignore it. 19309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 19409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(sub->subexpressions.get_head()); 19509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (tag == NULL || strcmp(tag->value(), "function") != 0) 19609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke continue; // not a (function ...); ignore it. 19709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 1988df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke ir_function *f = read_function(st, sub, true); 1998df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke if (f == NULL) 20009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke return; 2018df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke instructions->push_tail(f); 20209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 20309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke} 20409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 2058df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunkestatic ir_function * 2068df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunkeread_function(_mesa_glsl_parse_state *st, s_list *list, bool skip_body) 20709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke{ 208953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 209e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke bool added = false; 21009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (list->length() < 3) { 21109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, list, "Expected (function <name> (signature ...) ...)"); 2128df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke return NULL; 21309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 21409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 21509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_symbol *name = SX_AS_SYMBOL(list->subexpressions.head->next); 21609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (name == NULL) { 21709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, list, "Expected (function <name> ...)"); 2188df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke return NULL; 21909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 22009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 2218df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke ir_function *f = st->symbols->get_function(name->value()); 2228df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke if (f == NULL) { 2231660a2954797e056caba319c5d6c70b0d4be22feCarl Worth f = new(ctx) ir_function(name->value()); 224e8f5ebf313da3ce33ccbbcf9b72946853035fbddEric Anholt added = st->symbols->add_function(f); 2258df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke assert(added); 22609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 22709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 22809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke exec_list_iterator it = list->subexpressions.iterator(); 22909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke it.next(); // skip "function" tag 23009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke it.next(); // skip function name 23109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke for (/* nothing */; it.has_next(); it.next()) { 23209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *siglist = SX_AS_LIST(it.get()); 23309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (siglist == NULL) { 23409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, list, "Expected (function (signature ...) ...)"); 2358df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke return NULL; 23609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 23709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 23809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(siglist->subexpressions.get_head()); 23909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (tag == NULL || strcmp(tag->value(), "signature") != 0) { 24009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, siglist, "Expected (signature ...)"); 2418df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke return NULL; 24209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 24309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 244b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke read_function_sig(st, f, siglist, skip_body); 24509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 246e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke return added ? f : NULL; 24709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke} 24809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 249b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunkestatic void 250b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunkeread_function_sig(_mesa_glsl_parse_state *st, ir_function *f, s_list *list, 251b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke bool skip_body) 25209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke{ 253953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 25409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (list->length() != 4) { 25509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, list, "Expected (signature <type> (parameters ...) " 25609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke "(<instruction> ...))"); 257b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 25809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 25909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 26009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_expression *type_expr = (s_expression*) list->subexpressions.head->next; 26109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke const glsl_type *return_type = read_type(st, type_expr); 26209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (return_type == NULL) 263b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 26409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 26509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *paramlist = SX_AS_LIST(type_expr->next); 266c180e95d267c302c40e1cb92e5b134b4e370ef2eKenneth Graunke s_list *body_list = SX_AS_LIST(type_expr->next->next); 2678df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke if (paramlist == NULL || body_list == NULL) { 2688df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke ir_read_error(st, list, "Expected (signature <type> (parameters ...) " 2698df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke "(<instruction> ...))"); 270b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 27109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 27209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_symbol *paramtag = SX_AS_SYMBOL(paramlist->subexpressions.get_head()); 27309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (paramtag == NULL || strcmp(paramtag->value(), "parameters") != 0) { 27409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, paramlist, "Expected (parameters ...)"); 275b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 27609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 27709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 278b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke // Read the parameters list into a temporary place. 279b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke exec_list hir_parameters; 2808df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke st->symbols->push_scope(); 2818df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke 28209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke exec_list_iterator it = paramlist->subexpressions.iterator(); 28309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke for (it.next() /* skip "parameters" */; it.has_next(); it.next()) { 28409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *decl = SX_AS_LIST(it.get()); 28509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_variable *var = read_declaration(st, decl); 286b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke if (var == NULL) 287b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 288b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke 289b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke hir_parameters.push_tail(var); 290b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } 291b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke 292b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke ir_function_signature *sig = f->exact_matching_signature(&hir_parameters); 29343ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke if (sig == NULL && skip_body) { 29443ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke /* If scanning for prototypes, generate a new signature. */ 29543ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke sig = new(ctx) ir_function_signature(return_type); 296f412fac5b46eb274cbed8e62234d5dbfd859f1feKenneth Graunke sig->is_builtin = true; 29743ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke f->add_signature(sig); 29843ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke } else if (sig != NULL) { 299b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke const char *badvar = sig->qualifiers_match(&hir_parameters); 300b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke if (badvar != NULL) { 301b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke ir_read_error(st, list, "function `%s' parameter `%s' qualifiers " 302b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke "don't match prototype", f->name, badvar); 303b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 30409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 30509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 306b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke if (sig->return_type != return_type) { 307b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke ir_read_error(st, list, "function `%s' return type doesn't " 308b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke "match prototype", f->name); 309b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 310b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } 311b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } else { 31243ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke /* No prototype for this body exists - skip it. */ 31343ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke st->symbols->pop_scope(); 31443ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke return; 31509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 31643ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke assert(sig != NULL); 31709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 318b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke sig->replace_parameters(&hir_parameters); 319b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke 320d802ba110f78c3eee9541867cde819ada1b2c449Kenneth Graunke if (!skip_body && !body_list->subexpressions.is_empty()) { 321b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke if (sig->is_defined) { 322b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke ir_read_error(st, list, "function %s redefined", f->name); 323b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 324b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } 325a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke st->current_function = sig; 3268df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke read_instructions(st, &sig->body, body_list, NULL); 327a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke st->current_function = NULL; 328f6c90d8b3484864cd7f3abf895746e0655929a13Kenneth Graunke sig->is_defined = true; 329b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } 3308df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke 3318df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke st->symbols->pop_scope(); 33209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke} 33309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 33409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunkestatic void 3353ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunkeread_instructions(_mesa_glsl_parse_state *st, exec_list *instructions, 336396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke s_expression *expr, ir_loop *loop_ctx) 3373ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke{ 3383ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke // Read in a list of instructions 3393ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_list *list = SX_AS_LIST(expr); 3403ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke if (list == NULL) { 3414ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "Expected (<instruction> ...); found an atom."); 3423ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke return; 3433ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 3443ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 3453ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke foreach_iter(exec_list_iterator, it, list->subexpressions) { 3463ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_expression *sub = (s_expression*) it.get(); 347396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke ir_instruction *ir = read_instruction(st, sub, loop_ctx); 3482809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke if (ir != NULL) { 3492809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke /* Global variable declarations should be moved to the top, before 3502809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke * any functions that might use them. Functions are added to the 3512809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke * instruction stream when scanning for prototypes, so without this 3522809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke * hack, they always appear before variable declarations. 3532809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke */ 3542809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke if (st->current_function == NULL && ir->as_variable() != NULL) 3552809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke instructions->push_head(ir); 3562809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke else 3572809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke instructions->push_tail(ir); 3582809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke } 3593ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 3603ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke} 3613ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 3623ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 363d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkestatic ir_instruction * 364396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunkeread_instruction(_mesa_glsl_parse_state *st, s_expression *expr, 365396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke ir_loop *loop_ctx) 366d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke{ 367953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 368396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke s_symbol *symbol = SX_AS_SYMBOL(expr); 369396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke if (symbol != NULL) { 370396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke if (strcmp(symbol->value(), "break") == 0 && loop_ctx != NULL) 3711660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_loop_jump(ir_loop_jump::jump_break); 372396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke if (strcmp(symbol->value(), "continue") == 0 && loop_ctx != NULL) 3731660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_loop_jump(ir_loop_jump::jump_continue); 374396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke } 375396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke 376d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_list *list = SX_AS_LIST(expr); 377e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke if (list == NULL || list->subexpressions.is_empty()) { 378e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke ir_read_error(st, expr, "Invalid instruction.\n"); 379d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 380e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke } 381d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 382d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.get_head()); 383d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (tag == NULL) { 3844ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected instruction tag"); 385d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 386d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 387d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 388d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke ir_instruction *inst = NULL; 38946ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke if (strcmp(tag->value(), "declare") == 0) { 390d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke inst = read_declaration(st, list); 3913c033637de7def553559c11d037f2e8bbb750f77Kenneth Graunke } else if (strcmp(tag->value(), "assign") == 0) { 3923c033637de7def553559c11d037f2e8bbb750f77Kenneth Graunke inst = read_assignment(st, list); 39346ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke } else if (strcmp(tag->value(), "if") == 0) { 394396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke inst = read_if(st, list, loop_ctx); 39532b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke } else if (strcmp(tag->value(), "loop") == 0) { 39632b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke inst = read_loop(st, list); 39746ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke } else if (strcmp(tag->value(), "return") == 0) { 3989d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke inst = read_return(st, list); 3998df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke } else if (strcmp(tag->value(), "function") == 0) { 4008df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke inst = read_function(st, list, false); 40146ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke } else { 40246ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke inst = read_rvalue(st, list); 40346ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke if (inst == NULL) 40446a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading instruction"); 40546ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke } 406d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return inst; 407d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke} 408d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 409d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 410d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkestatic ir_variable * 411d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkeread_declaration(_mesa_glsl_parse_state *st, s_list *list) 412d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke{ 413953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 414d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (list->length() != 4) { 4154ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (declare (<qualifiers>) <type> " 4164ec982fb86ae2476508d2027464241489243a170Kenneth Graunke "<name>)"); 417d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 418d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 419d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 420d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_list *quals = SX_AS_LIST(list->subexpressions.head->next); 421d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (quals == NULL) { 4224ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected a list of variable qualifiers"); 423d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 424d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 425d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 426d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_expression *type_expr = (s_expression*) quals->next; 42757944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *type = read_type(st, type_expr); 428d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (type == NULL) 429d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 430d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 431d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_symbol *var_name = SX_AS_SYMBOL(type_expr->next); 432d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (var_name == NULL) { 4334ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected variable name, found non-symbol"); 434d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 435d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 436d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 4377e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_variable *var = new(ctx) ir_variable(type, var_name->value(), 4387e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_auto); 439d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 440d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke foreach_iter(exec_list_iterator, it, quals->subexpressions) { 441d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_symbol *qualifier = SX_AS_SYMBOL(it.get()); 442d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (qualifier == NULL) { 4434ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "qualifier list must contain only symbols"); 444d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke delete var; 445d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 446d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 447d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 448d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke // FINISHME: Check for duplicate/conflicting qualifiers. 449d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (strcmp(qualifier->value(), "centroid") == 0) { 450d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->centroid = 1; 451d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "invariant") == 0) { 452d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->invariant = 1; 453d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "uniform") == 0) { 454d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_uniform; 455d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "auto") == 0) { 456d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_auto; 457d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "in") == 0) { 458d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_in; 459d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "out") == 0) { 460d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_out; 461d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "inout") == 0) { 462d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_inout; 463d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "smooth") == 0) { 464d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->interpolation = ir_var_smooth; 465d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "flat") == 0) { 466d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->interpolation = ir_var_flat; 467d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "noperspective") == 0) { 468d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->interpolation = ir_var_noperspective; 469d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else { 4704ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "unknown qualifier: %s", qualifier->value()); 471d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke delete var; 472d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 473d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 474d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 475d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 476d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke // Add the variable to the symbol table 4772070f9f5bec99e7b91309060984431aa7ea32c00Kenneth Graunke st->symbols->add_variable(var->name, var); 478d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 479d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return var; 480d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke} 481d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 482d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 4833ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunkestatic ir_if * 484396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunkeread_if(_mesa_glsl_parse_state *st, s_list *list, ir_loop *loop_ctx) 4853ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke{ 486953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 4873ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke if (list->length() != 4) { 4884ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (if <condition> (<then> ...) " 4893ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke "(<else> ...))"); 4903ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke return NULL; 4913ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 4923ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 4933ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_expression *cond_expr = (s_expression*) list->subexpressions.head->next; 4943ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke ir_rvalue *condition = read_rvalue(st, cond_expr); 4953ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke if (condition == NULL) { 49646a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading condition of (if ...)"); 4973ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke return NULL; 4983ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 4993ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 5003ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_expression *then_expr = (s_expression*) cond_expr->next; 5013ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_expression *else_expr = (s_expression*) then_expr->next; 5023ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 5031660a2954797e056caba319c5d6c70b0d4be22feCarl Worth ir_if *iff = new(ctx) ir_if(condition); 5043ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 505396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke read_instructions(st, &iff->then_instructions, then_expr, loop_ctx); 506396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke read_instructions(st, &iff->else_instructions, else_expr, loop_ctx); 5073ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke if (st->error) { 5083ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke delete iff; 5093ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke iff = NULL; 5103ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 5113ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke return iff; 5123ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke} 5133ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 5143ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 51532b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunkestatic ir_loop * 51632b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunkeread_loop(_mesa_glsl_parse_state *st, s_list *list) 51732b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke{ 518953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 51932b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke if (list->length() != 6) { 5204ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (loop <counter> <from> <to> " 5214ec982fb86ae2476508d2027464241489243a170Kenneth Graunke "<increment> <body>)"); 52232b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke return NULL; 52332b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke } 52432b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 52532b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *count_expr = (s_expression*) list->subexpressions.head->next; 52632b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *from_expr = (s_expression*) count_expr->next; 52732b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *to_expr = (s_expression*) from_expr->next; 52832b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *inc_expr = (s_expression*) to_expr->next; 52932b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *body_expr = (s_expression*) inc_expr->next; 53032b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 53132b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke // FINISHME: actually read the count/from/to fields. 53232b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 5331660a2954797e056caba319c5d6c70b0d4be22feCarl Worth ir_loop *loop = new(ctx) ir_loop; 534396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke read_instructions(st, &loop->body_instructions, body_expr, loop); 53532b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke if (st->error) { 53632b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke delete loop; 53732b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke loop = NULL; 53832b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke } 53932b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke return loop; 54032b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke} 54132b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 54232b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 5439d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunkestatic ir_return * 5449d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunkeread_return(_mesa_glsl_parse_state *st, s_list *list) 5459d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke{ 546953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 5479d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke if (list->length() != 2) { 5484ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (return <rvalue>)"); 5499d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke return NULL; 5509d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke } 5519d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 5529d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke s_expression *expr = (s_expression*) list->subexpressions.head->next; 5539d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 5549d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke ir_rvalue *retval = read_rvalue(st, expr); 5559d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke if (retval == NULL) { 55646a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading return value"); 5579d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke return NULL; 5589d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke } 5599d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 5601660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_return(retval); 5619d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke} 5629d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 5639d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 564f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_rvalue * 565f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_rvalue(_mesa_glsl_parse_state *st, s_expression *expr) 566f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 567f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_list *list = SX_AS_LIST(expr); 568f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list == NULL || list->subexpressions.is_empty()) 569f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 570f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 571f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.get_head()); 572f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (tag == NULL) { 5734ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected rvalue tag"); 574f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 575f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 576f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 5773c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke ir_rvalue *rvalue = read_dereference(st, list); 5783c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke if (rvalue != NULL || st->error) 5793c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke return rvalue; 5803c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke else if (strcmp(tag->value(), "swiz") == 0) { 581f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke rvalue = read_swizzle(st, list); 582451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } else if (strcmp(tag->value(), "expression") == 0) { 583f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke rvalue = read_expression(st, list); 584b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } else if (strcmp(tag->value(), "call") == 0) { 585b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke rvalue = read_call(st, list); 586451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } else if (strcmp(tag->value(), "constant") == 0) { 587f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke rvalue = read_constant(st, list); 588451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } else { 589dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke rvalue = read_texture(st, list); 590dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (rvalue == NULL && !st->error) 591dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, expr, "unrecognized rvalue tag: %s", tag->value()); 592451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } 593f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 594f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return rvalue; 595f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 596f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 597f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_assignment * 598f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_assignment(_mesa_glsl_parse_state *st, s_list *list) 599f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 600953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 601b758de16e3e6e27e9ead24aa6241b5d4db0d8836Kenneth Graunke if (list->length() != 5) { 60203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "expected (assign <condition> (<write mask>) " 60303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke "<lhs> <rhs>)"); 604f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 605f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 606f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 607f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *cond_expr = (s_expression*) list->subexpressions.head->next; 60803a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke s_list *mask_list = SX_AS_LIST(cond_expr->next); 609b758de16e3e6e27e9ead24aa6241b5d4db0d8836Kenneth Graunke s_expression *lhs_expr = (s_expression*) cond_expr->next->next; 610f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *rhs_expr = (s_expression*) lhs_expr->next; 611f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 612f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *condition = read_rvalue(st, cond_expr); 613f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (condition == NULL) { 61446a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading condition of assignment"); 615f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 616f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 617f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 618b758de16e3e6e27e9ead24aa6241b5d4db0d8836Kenneth Graunke if (mask_list == NULL || mask_list->length() > 1) { 61903a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, mask_list, "expected () or (<write mask>)"); 62003a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 62103a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 62203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 62303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke unsigned mask = 0; 624b758de16e3e6e27e9ead24aa6241b5d4db0d8836Kenneth Graunke if (mask_list->length() == 1) { 62503a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke s_symbol *mask_symbol = SX_AS_SYMBOL(mask_list->subexpressions.head); 62603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke if (mask_symbol == NULL) { 62703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "expected a write mask; found non-symbol"); 62803a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 62903a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 63003a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 63103a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke const char *mask_str = mask_symbol->value(); 63203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke unsigned mask_length = strlen(mask_str); 63303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke if (mask_length > 4) { 63403a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "invalid write mask: %s", mask_str); 63503a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 63603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 63703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 63803a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke const unsigned idx_map[] = { 3, 0, 1, 2 }; /* w=bit 3, x=0, y=1, z=2 */ 63903a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 64003a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke for (unsigned i = 0; i < mask_length; i++) { 64103a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke if (mask_str[i] < 'w' || mask_str[i] > 'z') { 64203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "write mask contains invalid character: %c", 64303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke mask_str[i]); 64403a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 64503a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 64603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke mask |= 1 << idx_map[mask_str[i] - 'w']; 64703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 64803a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 64903a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 65003a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_dereference *lhs = read_dereference(st, lhs_expr); 651f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (lhs == NULL) { 65246a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading left-hand side of assignment"); 653f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 654f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 655f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 656f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *rhs = read_rvalue(st, rhs_expr); 657f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (rhs == NULL) { 65846a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading right-hand side of assignment"); 659f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 660f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 661f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 66203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke if (mask == 0 && (lhs->type->is_vector() || lhs->type->is_scalar())) { 66303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "non-zero write mask required."); 66403a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 66503a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 66603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 66703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return new(ctx) ir_assignment(lhs, rhs, condition, mask); 668f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 669f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 670b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunkestatic ir_call * 671b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunkeread_call(_mesa_glsl_parse_state *st, s_list *list) 672b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke{ 673953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 674b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (list->length() != 3) { 675b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "expected (call <name> (<param> ...))"); 676b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 677b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 678b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 679b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke s_symbol *name = SX_AS_SYMBOL(list->subexpressions.head->next); 680c180e95d267c302c40e1cb92e5b134b4e370ef2eKenneth Graunke s_list *params = SX_AS_LIST(list->subexpressions.head->next->next); 681b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (name == NULL || params == NULL) { 682b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "expected (call <name> (<param> ...))"); 683b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 684b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 685b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 686b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke exec_list parameters; 687b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 688b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke foreach_iter(exec_list_iterator, it, params->subexpressions) { 689b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke s_expression *expr = (s_expression*) it.get(); 690b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_rvalue *param = read_rvalue(st, expr); 691b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (param == NULL) { 692b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "when reading parameter to function call"); 693b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 694b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 695b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke parameters.push_tail(param); 696b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 697b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 698b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_function *f = st->symbols->get_function(name->value()); 699b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (f == NULL) { 700b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "found call to undefined function %s", 701b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke name->value()); 702b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 703b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 704b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 7051f47245bdda2c85bf0f0174e6c24a50486b413aaEric Anholt ir_function_signature *callee = f->matching_signature(¶meters); 706b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (callee == NULL) { 707b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "couldn't find matching signature for function " 708b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke "%s", name->value()); 709b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 710b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 711b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 7121660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_call(callee, ¶meters); 713b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke} 714f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 715f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_expression * 716f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_expression(_mesa_glsl_parse_state *st, s_list *list) 717f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 718953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 719f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke const unsigned list_length = list->length(); 720f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list_length < 4) { 7214ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (expression <type> <operator> " 7224ec982fb86ae2476508d2027464241489243a170Kenneth Graunke "<operand> [<operand>])"); 723f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 724f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 725f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 726f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *type_expr = (s_expression*) list->subexpressions.head->next; 72757944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *type = read_type(st, type_expr); 728f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type == NULL) 729f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 730f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 731f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke /* Read the operator */ 732f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *op_sym = SX_AS_SYMBOL(type_expr->next); 733f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (op_sym == NULL) { 7344ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected operator, found non-symbol"); 735f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 736f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 737f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 738f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_expression_operation op = ir_expression::get_operator(op_sym->value()); 739f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (op == (ir_expression_operation) -1) { 7404ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "invalid operator: %s", op_sym->value()); 741f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 742f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 743f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 744f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke /* Now that we know the operator, check for the right number of operands */ 745f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (ir_expression::get_num_operands(op) == 2) { 746f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list_length != 5) { 74721128c23c69d7dc0b46455591899e4850b2029d8Kenneth Graunke ir_read_error(st, list, "expected (expression <type> %s <operand> " 74821128c23c69d7dc0b46455591899e4850b2029d8Kenneth Graunke " <operand>)", op_sym->value()); 749f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 750f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 751f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } else { 752f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list_length != 4) { 75321128c23c69d7dc0b46455591899e4850b2029d8Kenneth Graunke ir_read_error(st, list, "expected (expression <type> %s <operand>)", 754f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke op_sym->value()); 755f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 756f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 757f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 758f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 759f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *exp1 = (s_expression*) (op_sym->next); 760f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *arg1 = read_rvalue(st, exp1); 761f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (arg1 == NULL) { 76246a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading first operand of %s", 7634ec982fb86ae2476508d2027464241489243a170Kenneth Graunke op_sym->value()); 764f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 765f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 766f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 767f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *arg2 = NULL; 768f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (ir_expression::get_num_operands(op) == 2) { 769f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *exp2 = (s_expression*) (exp1->next); 770f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke arg2 = read_rvalue(st, exp2); 771f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (arg2 == NULL) { 77246a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading second operand of %s", 773f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke op_sym->value()); 774f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 775f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 776f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 777f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 7781660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_expression(op, type, arg1, arg2); 779f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 780f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 781f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_swizzle * 782f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_swizzle(_mesa_glsl_parse_state *st, s_list *list) 783f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 784f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list->length() != 3) { 7854ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (swiz <swizzle> <rvalue>)"); 786f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 787f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 788f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 789f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *swiz = SX_AS_SYMBOL(list->subexpressions.head->next); 790f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (swiz == NULL) { 7914ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected a valid swizzle; found non-symbol"); 792f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 793f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 794f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 795951632253f4f37ce058e2466bca5b96bb43ccfbfKenneth Graunke if (strlen(swiz->value()) > 4) { 7964ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected a valid swizzle; found %s", 7974ec982fb86ae2476508d2027464241489243a170Kenneth Graunke swiz->value()); 798f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 799f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 800f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 801f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *sub = (s_expression*) swiz->next; 802f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *rvalue = read_rvalue(st, sub); 803f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (rvalue == NULL) 804f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 805f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 806bf783ecea69c6b4a3fb5f616e91707cf6d806040Kenneth Graunke ir_swizzle *ir = ir_swizzle::create(rvalue, swiz->value(), 807bf783ecea69c6b4a3fb5f616e91707cf6d806040Kenneth Graunke rvalue->type->vector_elements); 808bf783ecea69c6b4a3fb5f616e91707cf6d806040Kenneth Graunke if (ir == NULL) 809bf783ecea69c6b4a3fb5f616e91707cf6d806040Kenneth Graunke ir_read_error(st, list, "invalid swizzle"); 810bf783ecea69c6b4a3fb5f616e91707cf6d806040Kenneth Graunke 811bf783ecea69c6b4a3fb5f616e91707cf6d806040Kenneth Graunke return ir; 812f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 813f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 814f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_constant * 815f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_constant(_mesa_glsl_parse_state *st, s_list *list) 816f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 817953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 818f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list->length() != 3) { 819ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke ir_read_error(st, list, "expected (constant <type> (...))"); 820f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 821f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 822f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 823f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *type_expr = (s_expression*) list->subexpressions.head->next; 82457944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *type = read_type(st, type_expr); 825f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type == NULL) 826f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 827f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 828f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_list *values = SX_AS_LIST(type_expr->next); 829f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (values == NULL) { 830ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke ir_read_error(st, list, "expected (constant <type> (...))"); 831f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 832f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 833f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 834ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke if (type->is_array()) { 835ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke const unsigned elements_supplied = values->length(); 836ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke if (elements_supplied != type->length) { 837ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke ir_read_error(st, values, "expected exactly %u array elements, " 838ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke "given %u", type->length, elements_supplied); 839ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke return NULL; 840ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke } 841ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke 842ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke exec_list elements; 843ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke foreach_iter(exec_list_iterator, it, values->subexpressions) { 844ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke s_expression *expr = (s_expression *) it.get(); 845ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke s_list *elt = SX_AS_LIST(expr); 846ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke if (elt == NULL) { 847ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke ir_read_error(st, expr, "expected (constant ...) array element"); 848ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke return NULL; 849ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke } 850ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke 851ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke ir_constant *ir_elt = read_constant(st, elt); 852ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke if (ir_elt == NULL) 853ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke return NULL; 854ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke elements.push_tail(ir_elt); 855ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke } 856ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke return new(ctx) ir_constant(type, &elements); 857ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke } 858ef2c38b2450eb366a2e6f6a46d1725aa6c14d74bKenneth Graunke 859f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke const glsl_type *const base_type = type->get_base_type(); 860f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 861b43611b79c1f0a5caff80c17c9e7840a718f07c9Vinson Lee ir_constant_data data = { { 0 } }; 862f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 863f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke // Read in list of values (at most 16). 864f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke int k = 0; 865f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke foreach_iter(exec_list_iterator, it, values->subexpressions) { 866f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (k >= 16) { 8674ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, values, "expected at most 16 numbers"); 868f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 869f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 870f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 871f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *expr = (s_expression*) it.get(); 872f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 873f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (base_type->base_type == GLSL_TYPE_FLOAT) { 874f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_number *value = SX_AS_NUMBER(expr); 875f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (value == NULL) { 8764ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, values, "expected numbers"); 877f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 878f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 8794976e57448b2d4ca753e95ef2162758542a69a77Ian Romanick data.f[k] = value->fvalue(); 880f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } else { 881f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_int *value = SX_AS_INT(expr); 882f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (value == NULL) { 8834ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, values, "expected integers"); 884f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 885f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 886f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 887f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke switch (base_type->base_type) { 888f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke case GLSL_TYPE_UINT: { 8894976e57448b2d4ca753e95ef2162758542a69a77Ian Romanick data.u[k] = value->value(); 890f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke break; 891f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 892f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke case GLSL_TYPE_INT: { 8934976e57448b2d4ca753e95ef2162758542a69a77Ian Romanick data.i[k] = value->value(); 894f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke break; 895f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 896f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke case GLSL_TYPE_BOOL: { 8974976e57448b2d4ca753e95ef2162758542a69a77Ian Romanick data.b[k] = value->value(); 898f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke break; 899f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 900f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke default: 9014ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, values, "unsupported constant type"); 902f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 903f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 904f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 905f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ++k; 906f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 9074976e57448b2d4ca753e95ef2162758542a69a77Ian Romanick 9081660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_constant(type, &data); 909f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 910451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke 911451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkestatic ir_dereference * 9123c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunkeread_dereference(_mesa_glsl_parse_state *st, s_expression *expr) 9133c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke{ 9143c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke s_list *list = SX_AS_LIST(expr); 9153c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke if (list == NULL || list->subexpressions.is_empty()) 9163c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke return NULL; 9173c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke 9183c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.head); 9193c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke assert(tag != NULL); 9203c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke 9213c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke if (strcmp(tag->value(), "var_ref") == 0) 9223c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke return read_var_ref(st, list); 9233c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke if (strcmp(tag->value(), "array_ref") == 0) 9243c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke return read_array_ref(st, list); 9253c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke if (strcmp(tag->value(), "record_ref") == 0) 9263c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke return read_record_ref(st, list); 9273c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke return NULL; 9283c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke} 9293c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke 9300fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkestatic ir_dereference_variable * 931451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkeread_var_ref(_mesa_glsl_parse_state *st, s_list *list) 932451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke{ 933953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 934451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke if (list->length() != 2) { 935350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke ir_read_error(st, list, "expected (var_ref <variable name>)"); 936451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke return NULL; 937451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } 938350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke s_symbol *var_name = SX_AS_SYMBOL(list->subexpressions.head->next); 939350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke if (var_name == NULL) { 940350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke ir_read_error(st, list, "expected (var_ref <variable name>)"); 941350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke return NULL; 942350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke } 943350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke 944350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke ir_variable *var = st->symbols->get_variable(var_name->value()); 945350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke if (var == NULL) { 946350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke ir_read_error(st, list, "undeclared variable: %s", var_name->value()); 947451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke return NULL; 948350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke } 949350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke 9501660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_dereference_variable(var); 951451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke} 952451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke 9530fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkestatic ir_dereference_array * 954451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkeread_array_ref(_mesa_glsl_parse_state *st, s_list *list) 955451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke{ 956953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 957451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke if (list->length() != 3) { 958350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke ir_read_error(st, list, "expected (array_ref <rvalue> <index>)"); 959451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke return NULL; 960451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } 961451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke 962451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke s_expression *subj_expr = (s_expression*) list->subexpressions.head->next; 963350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke ir_rvalue *subject = read_rvalue(st, subj_expr); 964350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke if (subject == NULL) { 965350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke ir_read_error(st, NULL, "when reading the subject of an array_ref"); 966451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke return NULL; 967350bd703480d4e4f8dea1813cec6ee8964bce3beKenneth Graunke } 968451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke 969451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke s_expression *idx_expr = (s_expression*) subj_expr->next; 970451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke ir_rvalue *idx = read_rvalue(st, idx_expr); 9711660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_dereference_array(subject, idx); 972451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke} 973451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke 9740fd665ca63ba37b9a3022f21a8d9f363530e2038Kenneth Graunkestatic ir_dereference_record * 975451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkeread_record_ref(_mesa_glsl_parse_state *st, s_list *list) 976451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke{ 977953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 97813e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke if (list->length() != 3) { 97913e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke ir_read_error(st, list, "expected (record_ref <rvalue> <field>)"); 98013e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke return NULL; 98113e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke } 98213e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke 98313e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke s_expression *subj_expr = (s_expression*) list->subexpressions.head->next; 98413e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke ir_rvalue *subject = read_rvalue(st, subj_expr); 98513e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke if (subject == NULL) { 98613e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke ir_read_error(st, NULL, "when reading the subject of a record_ref"); 98713e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke return NULL; 98813e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke } 98913e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke 99013e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke s_symbol *field = SX_AS_SYMBOL(subj_expr->next); 99113e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke if (field == NULL) { 99213e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke ir_read_error(st, list, "expected (record_ref ... <field name>)"); 99313e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke return NULL; 99413e1b6b725def5a22952ecd4e2e8b1e61cb3bcfaKenneth Graunke } 9951660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_dereference_record(subject, field->value()); 996451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke} 997dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 998dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunkestatic bool 999dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunkevalid_texture_list_length(ir_texture_opcode op, s_list *list) 1000dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke{ 1001dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke unsigned required_length = 7; 1002dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (op == ir_txf) 1003dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke required_length = 5; 1004dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke else if (op == ir_tex) 1005dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke required_length = 6; 1006dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1007dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return list->length() == required_length; 1008dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke} 1009dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1010dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunkestatic ir_texture * 1011dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunkeread_texture(_mesa_glsl_parse_state *st, s_list *list) 1012dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke{ 1013953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 1014dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.head); 1015dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke assert(tag != NULL); 1016dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1017dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_texture_opcode op = ir_texture::get_opcode(tag->value()); 1018dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (op == (ir_texture_opcode) -1) 1019dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1020dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1021dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (!valid_texture_list_length(op, list)) { 1022dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "invalid list size in (%s ...)", tag->value()); 1023dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1024dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1025dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 10261660a2954797e056caba319c5d6c70b0d4be22feCarl Worth ir_texture *tex = new(ctx) ir_texture(op); 1027dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1028dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke // Read sampler (must be a deref) 1029dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_expression *sampler_expr = (s_expression *) tag->next; 103056d3f6ad782e9819b40544494826954d3fcf978bKenneth Graunke ir_dereference *sampler = read_dereference(st, sampler_expr); 103156d3f6ad782e9819b40544494826954d3fcf978bKenneth Graunke if (sampler == NULL) { 1032dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading sampler in (%s ...)", tag->value()); 1033dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1034dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 103556d3f6ad782e9819b40544494826954d3fcf978bKenneth Graunke tex->set_sampler(sampler); 1036dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1037dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke // Read coordinate (any rvalue) 1038dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_expression *coordinate_expr = (s_expression *) sampler_expr->next; 1039dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->coordinate = read_rvalue(st, coordinate_expr); 1040dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (tex->coordinate == NULL) { 1041dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading coordinate in (%s ...)", 1042dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tag->value()); 1043dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1044dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1045dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1046dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke // Read texel offset, i.e. (0 0 0) 1047dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_list *offset_list = SX_AS_LIST(coordinate_expr->next); 1048dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (offset_list == NULL || offset_list->length() != 3) { 1049dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, offset_list, "expected (<int> <int> <int>)"); 1050dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1051dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1052dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_int *offset_x = SX_AS_INT(offset_list->subexpressions.head); 1053c180e95d267c302c40e1cb92e5b134b4e370ef2eKenneth Graunke s_int *offset_y = SX_AS_INT(offset_list->subexpressions.head->next); 1054c180e95d267c302c40e1cb92e5b134b4e370ef2eKenneth Graunke s_int *offset_z = SX_AS_INT(offset_list->subexpressions.head->next->next); 1055dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (offset_x == NULL || offset_y == NULL || offset_z == NULL) { 1056dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, offset_list, "expected (<int> <int> <int>)"); 1057dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1058dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1059dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->offsets[0] = offset_x->value(); 1060dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->offsets[1] = offset_y->value(); 1061dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->offsets[2] = offset_z->value(); 1062dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1063dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (op == ir_txf) { 1064dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_expression *lod_expr = (s_expression *) offset_list->next; 1065dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->lod_info.lod = read_rvalue(st, lod_expr); 1066dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (tex->lod_info.lod == NULL) { 1067dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading LOD in (txf ...)"); 1068dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1069dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1070dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } else { 1071dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_expression *proj_expr = (s_expression *) offset_list->next; 1072dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_int *proj_as_int = SX_AS_INT(proj_expr); 1073dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (proj_as_int && proj_as_int->value() == 1) { 1074dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->projector = NULL; 1075dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } else { 1076dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->projector = read_rvalue(st, proj_expr); 1077dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (tex->projector == NULL) { 1078dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading projective divide in (%s ..)", 1079dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tag->value()); 1080dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1081dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1082dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1083dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1084dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_list *shadow_list = SX_AS_LIST(proj_expr->next); 1085dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (shadow_list == NULL) { 1086dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "shadow comparitor must be a list"); 1087dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1088dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1089dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (shadow_list->subexpressions.is_empty()) { 1090dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->shadow_comparitor= NULL; 1091dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } else { 1092dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->shadow_comparitor = read_rvalue(st, shadow_list); 1093dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (tex->shadow_comparitor == NULL) { 1094dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading shadow comparitor in (%s ..)", 1095dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tag->value()); 1096dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1097dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1098dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1099dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_expression *lod_expr = (s_expression *) shadow_list->next; 1100dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1101dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke switch (op) { 1102dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke case ir_txb: 1103dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->lod_info.bias = read_rvalue(st, lod_expr); 1104dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (tex->lod_info.bias == NULL) { 1105dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading LOD bias in (txb ...)"); 1106dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1107dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1108dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke break; 1109dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke case ir_txl: 1110dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->lod_info.lod = read_rvalue(st, lod_expr); 1111dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (tex->lod_info.lod == NULL) { 1112dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading LOD in (txl ...)"); 1113dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1114dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1115dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke break; 1116dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke case ir_txd: { 1117dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_list *lod_list = SX_AS_LIST(lod_expr); 1118dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (lod_list->length() != 2) { 1119dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, lod_expr, "expected (dPdx dPdy) in (txd ...)"); 1120dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1121dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1122dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_expression *dx_expr = (s_expression *) lod_list->subexpressions.head; 1123dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_expression *dy_expr = (s_expression *) dx_expr->next; 1124dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke 1125dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->lod_info.grad.dPdx = read_rvalue(st, dx_expr); 1126dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (tex->lod_info.grad.dPdx == NULL) { 1127dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading dPdx in (txd ...)"); 1128dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1129dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1130dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke tex->lod_info.grad.dPdy = read_rvalue(st, dy_expr); 1131dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (tex->lod_info.grad.dPdy == NULL) { 1132dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, NULL, "when reading dPdy in (txd ...)"); 1133dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return NULL; 1134dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1135dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke break; 1136dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1137dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke default: 1138dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke // tex doesn't have any extra parameters and txf was handled earlier. 1139dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke break; 1140dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke }; 1141dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke } 1142dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke return tex; 1143dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke} 1144