ir_reader.cpp revision 79088746a231d361232fc87ab4d578b08c7ce2a7
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 354ec982fb86ae2476508d2027464241489243a170Kenneth Graunkestatic void ir_read_error(_mesa_glsl_parse_state *, s_expression *, 364ec982fb86ae2476508d2027464241489243a170Kenneth Graunke const char *fmt, ...); 3757944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunkestatic const glsl_type *read_type(_mesa_glsl_parse_state *, s_expression *); 38d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 3909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunkestatic void scan_for_prototypes(_mesa_glsl_parse_state *, exec_list *, 4009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_expression *); 418df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunkestatic ir_function *read_function(_mesa_glsl_parse_state *, s_list *, 428df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke bool skip_body); 43b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunkestatic void read_function_sig(_mesa_glsl_parse_state *, ir_function *, 44b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke s_list *, bool skip_body); 4509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 463ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunkestatic void read_instructions(_mesa_glsl_parse_state *, exec_list *, 47396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke s_expression *, ir_loop *); 48d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkestatic ir_instruction *read_instruction(_mesa_glsl_parse_state *, 49396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke s_expression *, ir_loop *); 50d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkestatic ir_variable *read_declaration(_mesa_glsl_parse_state *, s_list *); 51396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunkestatic ir_if *read_if(_mesa_glsl_parse_state *, s_list *, ir_loop *); 5232b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunkestatic ir_loop *read_loop(_mesa_glsl_parse_state *st, s_list *list); 539d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunkestatic ir_return *read_return(_mesa_glsl_parse_state *, s_list *); 54d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 55f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_rvalue *read_rvalue(_mesa_glsl_parse_state *, s_expression *); 56f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_assignment *read_assignment(_mesa_glsl_parse_state *, s_list *); 57f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_expression *read_expression(_mesa_glsl_parse_state *, s_list *); 58b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunkestatic ir_call *read_call(_mesa_glsl_parse_state *, s_list *); 59f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_swizzle *read_swizzle(_mesa_glsl_parse_state *, s_list *); 60f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_constant *read_constant(_mesa_glsl_parse_state *, s_list *); 61dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunkestatic ir_texture *read_texture(_mesa_glsl_parse_state *, s_list *); 623c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke 633c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunkestatic ir_dereference *read_dereference(_mesa_glsl_parse_state *, 643c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke s_expression *); 65451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkestatic ir_dereference *read_var_ref(_mesa_glsl_parse_state *, s_list *); 66451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkestatic ir_dereference *read_array_ref(_mesa_glsl_parse_state *, s_list *); 67451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkestatic ir_dereference *read_record_ref(_mesa_glsl_parse_state *, s_list *); 68f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 6934350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunkevoid 7034350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke_mesa_glsl_read_ir(_mesa_glsl_parse_state *state, exec_list *instructions, 7143ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke const char *src, bool scan_for_protos) 7234350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke{ 7378062273de65bf8133f2550aa2a26040a82a65aaKenneth Graunke s_expression *expr = s_expression::read_expression(state, src); 7434350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke if (expr == NULL) { 754ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(state, NULL, "couldn't parse S-Expression."); 7634350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke return; 7734350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke } 7834350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke 7943ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke if (scan_for_protos) { 8043ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke scan_for_prototypes(state, instructions, expr); 8143ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke if (state->error) 8243ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke return; 8343ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke } 8409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 85396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke read_instructions(state, instructions, expr, NULL); 8678062273de65bf8133f2550aa2a26040a82a65aaKenneth Graunke talloc_free(expr); 8779088746a231d361232fc87ab4d578b08c7ce2a7Kenneth Graunke 8879088746a231d361232fc87ab4d578b08c7ce2a7Kenneth Graunke validate_ir_tree(instructions); 8934350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke} 9034350be2cdb0cb769657d5ce82bc37d906eb3eb5Kenneth Graunke 91f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic void 924ec982fb86ae2476508d2027464241489243a170Kenneth Graunkeir_read_error(_mesa_glsl_parse_state *state, s_expression *expr, 934ec982fb86ae2476508d2027464241489243a170Kenneth Graunke const char *fmt, ...) 94f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 95f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke va_list ap; 96f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 974ec982fb86ae2476508d2027464241489243a170Kenneth Graunke state->error = true; 98f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 99a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke if (state->current_function != NULL) 100a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke state->info_log = talloc_asprintf_append(state->info_log, 101a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke "In function %s:\n", 102a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke state->current_function->function_name()); 103b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_strdup_append(state->info_log, "error: "); 104f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 105f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke va_start(ap, fmt); 106b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_vasprintf_append(state->info_log, fmt, ap); 107f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke va_end(ap); 108b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_strdup_append(state->info_log, "\n"); 109f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 11046a223224c55eaed7bf634d901f733098e674457Kenneth Graunke if (expr != NULL) { 111b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_strdup_append(state->info_log, 112b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke "...in this context:\n "); 11346a223224c55eaed7bf634d901f733098e674457Kenneth Graunke expr->print(); 114b2ba6fac09df1f06161a7ea1ef1f25bb9fbe8a5aKenneth Graunke state->info_log = talloc_strdup_append(state->info_log, "\n\n"); 11546a223224c55eaed7bf634d901f733098e674457Kenneth Graunke } 116f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 117f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 11857944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunkestatic const glsl_type * 119f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_type(_mesa_glsl_parse_state *st, s_expression *expr) 120f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 121f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_list *list = SX_AS_LIST(expr); 122f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list != NULL) { 123f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *type_sym = SX_AS_SYMBOL(list->subexpressions.get_head()); 124f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type_sym == NULL) { 1254ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected type (array ...) or (struct ...)"); 126f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 127f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 12857944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke if (strcmp(type_sym->value(), "array") == 0) { 12957944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke if (list->length() != 3) { 1304ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected type (array <type> <int>)"); 13157944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke return NULL; 13257944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } 13357944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke 13457944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke // Read base type 13557944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke s_expression *base_expr = (s_expression*) type_sym->next; 13657944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *base_type = read_type(st, base_expr); 13757944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke if (base_type == NULL) { 13846a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading base type of array"); 13957944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke return NULL; 14057944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } 14157944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke 14257944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke // Read array size 14357944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke s_int *size = SX_AS_INT(base_expr->next); 14457944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke if (size == NULL) { 1454ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "found non-integer array size"); 14657944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke return NULL; 14757944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } 14857944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke 149f38d15b80d4e4c8ecb7a76087cdc49835f0aa271Ian Romanick return glsl_type::get_array_instance(base_type, size->value()); 15057944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } else if (strcmp(type_sym->value(), "struct") == 0) { 151f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke assert(false); // FINISHME 15257944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } else { 1534ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected (array ...) or (struct ...); " 1544ec982fb86ae2476508d2027464241489243a170Kenneth Graunke "found (%s ...)", type_sym->value()); 15557944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke return NULL; 15657944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke } 157f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 158f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 159f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *type_sym = SX_AS_SYMBOL(expr); 160f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type_sym == NULL) { 1614ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected <type> (symbol or list)"); 162f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 163f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 164f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 16557944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *type = st->symbols->get_type(type_sym->value()); 166f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type == NULL) 1674ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "invalid type: %s", type_sym->value()); 168f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 169f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return type; 170f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 171f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 172d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 1733ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunkestatic void 17409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunkescan_for_prototypes(_mesa_glsl_parse_state *st, exec_list *instructions, 17509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_expression *expr) 17609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke{ 17709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *list = SX_AS_LIST(expr); 17809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (list == NULL) { 17909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, expr, "Expected (<instruction> ...); found an atom."); 18009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke return; 18109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 18209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 18309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke foreach_iter(exec_list_iterator, it, list->subexpressions) { 18409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *sub = SX_AS_LIST(it.get()); 18509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (sub == NULL) 18609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke continue; // not a (function ...); ignore it. 18709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 18809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(sub->subexpressions.get_head()); 18909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (tag == NULL || strcmp(tag->value(), "function") != 0) 19009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke continue; // not a (function ...); ignore it. 19109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 1928df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke ir_function *f = read_function(st, sub, true); 1938df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke if (f == NULL) 19409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke return; 1958df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke instructions->push_tail(f); 19609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 19709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke} 19809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 1998df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunkestatic ir_function * 2008df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunkeread_function(_mesa_glsl_parse_state *st, s_list *list, bool skip_body) 20109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke{ 202953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 203e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke bool added = false; 20409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (list->length() < 3) { 20509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, list, "Expected (function <name> (signature ...) ...)"); 2068df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke return NULL; 20709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 20809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 20909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_symbol *name = SX_AS_SYMBOL(list->subexpressions.head->next); 21009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (name == NULL) { 21109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, list, "Expected (function <name> ...)"); 2128df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke return NULL; 21309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 21409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 2158df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke ir_function *f = st->symbols->get_function(name->value()); 2168df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke if (f == NULL) { 2171660a2954797e056caba319c5d6c70b0d4be22feCarl Worth f = new(ctx) ir_function(name->value()); 218b6f15869b324ae64a00d0fe46fa3c8c62c1edb6cKenneth Graunke f->is_builtin = true; 219e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke added = st->symbols->add_function(f->name, f); 2208df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke assert(added); 22109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 22209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 22309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke exec_list_iterator it = list->subexpressions.iterator(); 22409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke it.next(); // skip "function" tag 22509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke it.next(); // skip function name 22609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke for (/* nothing */; it.has_next(); it.next()) { 22709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *siglist = SX_AS_LIST(it.get()); 22809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (siglist == NULL) { 22909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, list, "Expected (function (signature ...) ...)"); 2308df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke return NULL; 23109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 23209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 23309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(siglist->subexpressions.get_head()); 23409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (tag == NULL || strcmp(tag->value(), "signature") != 0) { 23509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, siglist, "Expected (signature ...)"); 2368df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke return NULL; 23709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 23809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 239b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke read_function_sig(st, f, siglist, skip_body); 24009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 241e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke return added ? f : NULL; 24209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke} 24309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 244b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunkestatic void 245b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunkeread_function_sig(_mesa_glsl_parse_state *st, ir_function *f, s_list *list, 246b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke bool skip_body) 24709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke{ 248953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 24909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (list->length() != 4) { 25009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, list, "Expected (signature <type> (parameters ...) " 25109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke "(<instruction> ...))"); 252b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 25309cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 25409cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 25509cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_expression *type_expr = (s_expression*) list->subexpressions.head->next; 25609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke const glsl_type *return_type = read_type(st, type_expr); 25709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (return_type == NULL) 258b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 25909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 26009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *paramlist = SX_AS_LIST(type_expr->next); 2618df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke s_list *body_list = SX_AS_LIST(paramlist->next); 2628df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke if (paramlist == NULL || body_list == NULL) { 2638df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke ir_read_error(st, list, "Expected (signature <type> (parameters ...) " 2648df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke "(<instruction> ...))"); 265b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 26609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 26709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_symbol *paramtag = SX_AS_SYMBOL(paramlist->subexpressions.get_head()); 26809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke if (paramtag == NULL || strcmp(paramtag->value(), "parameters") != 0) { 26909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_read_error(st, paramlist, "Expected (parameters ...)"); 270b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 27109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 27209cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 273b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke // Read the parameters list into a temporary place. 274b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke exec_list hir_parameters; 2758df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke st->symbols->push_scope(); 2768df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke 27709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke exec_list_iterator it = paramlist->subexpressions.iterator(); 27809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke for (it.next() /* skip "parameters" */; it.has_next(); it.next()) { 27909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke s_list *decl = SX_AS_LIST(it.get()); 28009cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke ir_variable *var = read_declaration(st, decl); 281b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke if (var == NULL) 282b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 283b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke 284b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke hir_parameters.push_tail(var); 285b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } 286b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke 287b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke ir_function_signature *sig = f->exact_matching_signature(&hir_parameters); 28843ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke if (sig == NULL && skip_body) { 28943ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke /* If scanning for prototypes, generate a new signature. */ 29043ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke sig = new(ctx) ir_function_signature(return_type); 29143ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke f->add_signature(sig); 29243ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke } else if (sig != NULL) { 293b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke const char *badvar = sig->qualifiers_match(&hir_parameters); 294b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke if (badvar != NULL) { 295b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke ir_read_error(st, list, "function `%s' parameter `%s' qualifiers " 296b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke "don't match prototype", f->name, badvar); 297b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 29809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 29909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 300b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke if (sig->return_type != return_type) { 301b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke ir_read_error(st, list, "function `%s' return type doesn't " 302b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke "match prototype", f->name); 303b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 304b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } 305b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } else { 30643ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke /* No prototype for this body exists - skip it. */ 30743ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke st->symbols->pop_scope(); 30843ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke return; 30909cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke } 31043ff8f1a4b90554eae489cebb7e05f983dd9ad66Kenneth Graunke assert(sig != NULL); 31109cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 312b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke sig->replace_parameters(&hir_parameters); 313b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke 314d802ba110f78c3eee9541867cde819ada1b2c449Kenneth Graunke if (!skip_body && !body_list->subexpressions.is_empty()) { 315b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke if (sig->is_defined) { 316b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke ir_read_error(st, list, "function %s redefined", f->name); 317b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke return; 318b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } 319a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke st->current_function = sig; 3208df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke read_instructions(st, &sig->body, body_list, NULL); 321a71b46a8ad344a86de2b13fe0c283ac2036c5f76Kenneth Graunke st->current_function = NULL; 322f6c90d8b3484864cd7f3abf895746e0655929a13Kenneth Graunke sig->is_defined = true; 323b142aeeb20f1b1d5f3752b973ecb0da61e7a574eKenneth Graunke } 3248df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke 3258df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke st->symbols->pop_scope(); 32609cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke} 32709cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunke 32809cad1339d8e6eebe5b13d95a9e1d2a1da2fce29Kenneth Graunkestatic void 3293ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunkeread_instructions(_mesa_glsl_parse_state *st, exec_list *instructions, 330396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke s_expression *expr, ir_loop *loop_ctx) 3313ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke{ 3323ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke // Read in a list of instructions 3333ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_list *list = SX_AS_LIST(expr); 3343ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke if (list == NULL) { 3354ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "Expected (<instruction> ...); found an atom."); 3363ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke return; 3373ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 3383ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 3393ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke foreach_iter(exec_list_iterator, it, list->subexpressions) { 3403ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_expression *sub = (s_expression*) it.get(); 341396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke ir_instruction *ir = read_instruction(st, sub, loop_ctx); 3422809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke if (ir != NULL) { 3432809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke /* Global variable declarations should be moved to the top, before 3442809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke * any functions that might use them. Functions are added to the 3452809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke * instruction stream when scanning for prototypes, so without this 3462809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke * hack, they always appear before variable declarations. 3472809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke */ 3482809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke if (st->current_function == NULL && ir->as_variable() != NULL) 3492809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke instructions->push_head(ir); 3502809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke else 3512809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke instructions->push_tail(ir); 3522809d707231fba0e91abe1dd32e9f2d3284b9d3aKenneth Graunke } 3533ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 3543ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke} 3553ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 3563ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 357d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkestatic ir_instruction * 358396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunkeread_instruction(_mesa_glsl_parse_state *st, s_expression *expr, 359396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke ir_loop *loop_ctx) 360d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke{ 361953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 362396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke s_symbol *symbol = SX_AS_SYMBOL(expr); 363396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke if (symbol != NULL) { 364396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke if (strcmp(symbol->value(), "break") == 0 && loop_ctx != NULL) 3651660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_loop_jump(ir_loop_jump::jump_break); 366396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke if (strcmp(symbol->value(), "continue") == 0 && loop_ctx != NULL) 3671660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_loop_jump(ir_loop_jump::jump_continue); 368396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke } 369396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke 370d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_list *list = SX_AS_LIST(expr); 371e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke if (list == NULL || list->subexpressions.is_empty()) { 372e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke ir_read_error(st, expr, "Invalid instruction.\n"); 373d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 374e024c5c6900c068634c2726d9ccfb9beac966c57Kenneth Graunke } 375d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 376d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.get_head()); 377d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (tag == NULL) { 3784ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected instruction tag"); 379d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 380d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 381d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 382d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke ir_instruction *inst = NULL; 38346ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke if (strcmp(tag->value(), "declare") == 0) { 384d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke inst = read_declaration(st, list); 3853c033637de7def553559c11d037f2e8bbb750f77Kenneth Graunke } else if (strcmp(tag->value(), "assign") == 0) { 3863c033637de7def553559c11d037f2e8bbb750f77Kenneth Graunke inst = read_assignment(st, list); 38746ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke } else if (strcmp(tag->value(), "if") == 0) { 388396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke inst = read_if(st, list, loop_ctx); 38932b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke } else if (strcmp(tag->value(), "loop") == 0) { 39032b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke inst = read_loop(st, list); 39146ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke } else if (strcmp(tag->value(), "return") == 0) { 3929d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke inst = read_return(st, list); 3938df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke } else if (strcmp(tag->value(), "function") == 0) { 3948df335d7f9ab8b3699c312f2b4b42be2e8eeba27Kenneth Graunke inst = read_function(st, list, false); 39546ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke } else { 39646ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke inst = read_rvalue(st, list); 39746ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke if (inst == NULL) 39846a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading instruction"); 39946ef8f19d76b33446c2ce6e7f1379bd348fe7fe4Kenneth Graunke } 400d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return inst; 401d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke} 402d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 403d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 404d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkestatic ir_variable * 405d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunkeread_declaration(_mesa_glsl_parse_state *st, s_list *list) 406d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke{ 407953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 408d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (list->length() != 4) { 4094ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (declare (<qualifiers>) <type> " 4104ec982fb86ae2476508d2027464241489243a170Kenneth Graunke "<name>)"); 411d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 412d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 413d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 414d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_list *quals = SX_AS_LIST(list->subexpressions.head->next); 415d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (quals == NULL) { 4164ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected a list of variable qualifiers"); 417d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 418d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 419d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 420d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_expression *type_expr = (s_expression*) quals->next; 42157944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *type = read_type(st, type_expr); 422d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (type == NULL) 423d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 424d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 425d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_symbol *var_name = SX_AS_SYMBOL(type_expr->next); 426d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (var_name == NULL) { 4274ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected variable name, found non-symbol"); 428d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 429d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 430d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 4317e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_variable *var = new(ctx) ir_variable(type, var_name->value(), 4327e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_auto); 433d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 434d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke foreach_iter(exec_list_iterator, it, quals->subexpressions) { 435d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke s_symbol *qualifier = SX_AS_SYMBOL(it.get()); 436d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (qualifier == NULL) { 4374ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "qualifier list must contain only symbols"); 438d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke delete var; 439d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 440d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 441d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 442d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke // FINISHME: Check for duplicate/conflicting qualifiers. 443d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke if (strcmp(qualifier->value(), "centroid") == 0) { 444d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->centroid = 1; 445d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "invariant") == 0) { 446d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->invariant = 1; 447d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "uniform") == 0) { 448d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_uniform; 449d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "auto") == 0) { 450d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_auto; 451d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "in") == 0) { 452d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_in; 453d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "out") == 0) { 454d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_out; 455d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "inout") == 0) { 456d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->mode = ir_var_inout; 457d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "smooth") == 0) { 458d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->interpolation = ir_var_smooth; 459d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "flat") == 0) { 460d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->interpolation = ir_var_flat; 461d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else if (strcmp(qualifier->value(), "noperspective") == 0) { 462d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke var->interpolation = ir_var_noperspective; 463d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } else { 4644ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "unknown qualifier: %s", qualifier->value()); 465d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke delete var; 466d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return NULL; 467d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 468d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke } 469d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 470d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke // Add the variable to the symbol table 4712070f9f5bec99e7b91309060984431aa7ea32c00Kenneth Graunke st->symbols->add_variable(var->name, var); 472d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 473d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke return var; 474d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke} 475d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 476d1d2ada3c6bdf5a99c07147c157da75f07100847Kenneth Graunke 4773ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunkestatic ir_if * 478396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunkeread_if(_mesa_glsl_parse_state *st, s_list *list, ir_loop *loop_ctx) 4793ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke{ 480953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 4813ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke if (list->length() != 4) { 4824ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (if <condition> (<then> ...) " 4833ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke "(<else> ...))"); 4843ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke return NULL; 4853ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 4863ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 4873ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_expression *cond_expr = (s_expression*) list->subexpressions.head->next; 4883ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke ir_rvalue *condition = read_rvalue(st, cond_expr); 4893ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke if (condition == NULL) { 49046a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading condition of (if ...)"); 4913ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke return NULL; 4923ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 4933ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 4943ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_expression *then_expr = (s_expression*) cond_expr->next; 4953ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke s_expression *else_expr = (s_expression*) then_expr->next; 4963ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 4971660a2954797e056caba319c5d6c70b0d4be22feCarl Worth ir_if *iff = new(ctx) ir_if(condition); 4983ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 499396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke read_instructions(st, &iff->then_instructions, then_expr, loop_ctx); 500396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke read_instructions(st, &iff->else_instructions, else_expr, loop_ctx); 5013ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke if (st->error) { 5023ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke delete iff; 5033ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke iff = NULL; 5043ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke } 5053ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke return iff; 5063ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke} 5073ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 5083ea0582803ea3070a1856455137daef9ddd86cb9Kenneth Graunke 50932b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunkestatic ir_loop * 51032b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunkeread_loop(_mesa_glsl_parse_state *st, s_list *list) 51132b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke{ 512953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 51332b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke if (list->length() != 6) { 5144ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (loop <counter> <from> <to> " 5154ec982fb86ae2476508d2027464241489243a170Kenneth Graunke "<increment> <body>)"); 51632b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke return NULL; 51732b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke } 51832b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 51932b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *count_expr = (s_expression*) list->subexpressions.head->next; 52032b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *from_expr = (s_expression*) count_expr->next; 52132b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *to_expr = (s_expression*) from_expr->next; 52232b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *inc_expr = (s_expression*) to_expr->next; 52332b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke s_expression *body_expr = (s_expression*) inc_expr->next; 52432b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 52532b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke // FINISHME: actually read the count/from/to fields. 52632b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 5271660a2954797e056caba319c5d6c70b0d4be22feCarl Worth ir_loop *loop = new(ctx) ir_loop; 528396fa9eba65a764a475a1ff186a94f1a4038af8aKenneth Graunke read_instructions(st, &loop->body_instructions, body_expr, loop); 52932b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke if (st->error) { 53032b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke delete loop; 53132b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke loop = NULL; 53232b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke } 53332b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke return loop; 53432b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke} 53532b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 53632b305207cca7d8a084473f82f340e4b2fe188faKenneth Graunke 5379d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunkestatic ir_return * 5389d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunkeread_return(_mesa_glsl_parse_state *st, s_list *list) 5399d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke{ 540953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 5419d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke if (list->length() != 2) { 5424ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (return <rvalue>)"); 5439d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke return NULL; 5449d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke } 5459d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 5469d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke s_expression *expr = (s_expression*) list->subexpressions.head->next; 5479d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 5489d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke ir_rvalue *retval = read_rvalue(st, expr); 5499d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke if (retval == NULL) { 55046a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading return value"); 5519d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke return NULL; 5529d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke } 5539d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 5541660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_return(retval); 5559d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke} 5569d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 5579d2ff7617a08fa1dc26c7661e813b0d6cb8acc2bKenneth Graunke 558f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_rvalue * 559f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_rvalue(_mesa_glsl_parse_state *st, s_expression *expr) 560f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 561f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_list *list = SX_AS_LIST(expr); 562f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list == NULL || list->subexpressions.is_empty()) 563f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 564f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 565f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *tag = SX_AS_SYMBOL(list->subexpressions.get_head()); 566f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (tag == NULL) { 5674ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, expr, "expected rvalue tag"); 568f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 569f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 570f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 5713c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke ir_rvalue *rvalue = read_dereference(st, list); 5723c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke if (rvalue != NULL || st->error) 5733c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke return rvalue; 5743c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunke else if (strcmp(tag->value(), "swiz") == 0) { 575f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke rvalue = read_swizzle(st, list); 576451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } else if (strcmp(tag->value(), "expression") == 0) { 577f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke rvalue = read_expression(st, list); 578b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } else if (strcmp(tag->value(), "call") == 0) { 579b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke rvalue = read_call(st, list); 580451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } else if (strcmp(tag->value(), "constant") == 0) { 581f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke rvalue = read_constant(st, list); 582451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } else { 583dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke rvalue = read_texture(st, list); 584dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke if (rvalue == NULL && !st->error) 585dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke ir_read_error(st, expr, "unrecognized rvalue tag: %s", tag->value()); 586451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunke } 587f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 588f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return rvalue; 589f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 590f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 591f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_assignment * 592f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_assignment(_mesa_glsl_parse_state *st, s_list *list) 593f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 594953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 595b758de16e3e6e27e9ead24aa6241b5d4db0d8836Kenneth Graunke if (list->length() != 5) { 59603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "expected (assign <condition> (<write mask>) " 59703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke "<lhs> <rhs>)"); 598f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 599f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 600f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 601f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *cond_expr = (s_expression*) list->subexpressions.head->next; 60203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke s_list *mask_list = SX_AS_LIST(cond_expr->next); 603b758de16e3e6e27e9ead24aa6241b5d4db0d8836Kenneth Graunke s_expression *lhs_expr = (s_expression*) cond_expr->next->next; 604f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *rhs_expr = (s_expression*) lhs_expr->next; 605f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 606f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *condition = read_rvalue(st, cond_expr); 607f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (condition == NULL) { 60846a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading condition of assignment"); 609f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 610f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 611f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 612b758de16e3e6e27e9ead24aa6241b5d4db0d8836Kenneth Graunke if (mask_list == NULL || mask_list->length() > 1) { 61303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, mask_list, "expected () or (<write mask>)"); 61403a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 61503a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 61603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 61703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke unsigned mask = 0; 618b758de16e3e6e27e9ead24aa6241b5d4db0d8836Kenneth Graunke if (mask_list->length() == 1) { 61903a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke s_symbol *mask_symbol = SX_AS_SYMBOL(mask_list->subexpressions.head); 62003a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke if (mask_symbol == NULL) { 62103a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "expected a write mask; found non-symbol"); 62203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 62303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 62403a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 62503a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke const char *mask_str = mask_symbol->value(); 62603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke unsigned mask_length = strlen(mask_str); 62703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke if (mask_length > 4) { 62803a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "invalid write mask: %s", mask_str); 62903a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 63003a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 63103a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 63203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke const unsigned idx_map[] = { 3, 0, 1, 2 }; /* w=bit 3, x=0, y=1, z=2 */ 63303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 63403a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke for (unsigned i = 0; i < mask_length; i++) { 63503a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke if (mask_str[i] < 'w' || mask_str[i] > 'z') { 63603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "write mask contains invalid character: %c", 63703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke mask_str[i]); 63803a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 63903a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 64003a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke mask |= 1 << idx_map[mask_str[i] - 'w']; 64103a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 64203a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 64303a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 64403a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_dereference *lhs = read_dereference(st, lhs_expr); 645f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (lhs == NULL) { 64646a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading left-hand side of assignment"); 647f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 648f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 649f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 650f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *rhs = read_rvalue(st, rhs_expr); 651f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (rhs == NULL) { 65246a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading right-hand side of assignment"); 653f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 654f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 655f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 65603a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke if (mask == 0 && (lhs->type->is_vector() || lhs->type->is_scalar())) { 65703a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke ir_read_error(st, list, "non-zero write mask required."); 65803a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return NULL; 65903a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke } 66003a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke 66103a6276477702404f5c7a4f5f2fbb713371c7eedKenneth Graunke return new(ctx) ir_assignment(lhs, rhs, condition, mask); 662f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 663f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 664b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunkestatic ir_call * 665b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunkeread_call(_mesa_glsl_parse_state *st, s_list *list) 666b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke{ 667953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 668b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (list->length() != 3) { 669b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "expected (call <name> (<param> ...))"); 670b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 671b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 672b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 673b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke s_symbol *name = SX_AS_SYMBOL(list->subexpressions.head->next); 674b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke s_list *params = SX_AS_LIST(name->next); 675b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (name == NULL || params == NULL) { 676b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "expected (call <name> (<param> ...))"); 677b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 678b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 679b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 680b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke exec_list parameters; 681b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 682b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke foreach_iter(exec_list_iterator, it, params->subexpressions) { 683b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke s_expression *expr = (s_expression*) it.get(); 684b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_rvalue *param = read_rvalue(st, expr); 685b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (param == NULL) { 686b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "when reading parameter to function call"); 687b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 688b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 689b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke parameters.push_tail(param); 690b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 691b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 692b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_function *f = st->symbols->get_function(name->value()); 693b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (f == NULL) { 694b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "found call to undefined function %s", 695b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke name->value()); 696b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 697b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 698b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 6991f47245bdda2c85bf0f0174e6c24a50486b413aaEric Anholt ir_function_signature *callee = f->matching_signature(¶meters); 700b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke if (callee == NULL) { 701b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke ir_read_error(st, list, "couldn't find matching signature for function " 702b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke "%s", name->value()); 703b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke return NULL; 704b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke } 705b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke 7061660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_call(callee, ¶meters); 707b51557fbe2b3543cb2e2ed5a3a3637964ca81e17Kenneth Graunke} 708f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 709f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_expression * 710f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_expression(_mesa_glsl_parse_state *st, s_list *list) 711f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 712953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = st; 713f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke const unsigned list_length = list->length(); 714f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list_length < 4) { 7154ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (expression <type> <operator> " 7164ec982fb86ae2476508d2027464241489243a170Kenneth Graunke "<operand> [<operand>])"); 717f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 718f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 719f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 720f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *type_expr = (s_expression*) list->subexpressions.head->next; 72157944975427769b08e00f274ff4d9a3e9849a5a2Kenneth Graunke const glsl_type *type = read_type(st, type_expr); 722f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (type == NULL) 723f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 724f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 725f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke /* Read the operator */ 726f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *op_sym = SX_AS_SYMBOL(type_expr->next); 727f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (op_sym == NULL) { 7284ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected operator, found non-symbol"); 729f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 730f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 731f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 732f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_expression_operation op = ir_expression::get_operator(op_sym->value()); 733f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (op == (ir_expression_operation) -1) { 7344ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "invalid operator: %s", op_sym->value()); 735f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 736f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 737f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 738f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke /* Now that we know the operator, check for the right number of operands */ 739f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (ir_expression::get_num_operands(op) == 2) { 740f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list_length != 5) { 74121128c23c69d7dc0b46455591899e4850b2029d8Kenneth Graunke ir_read_error(st, list, "expected (expression <type> %s <operand> " 74221128c23c69d7dc0b46455591899e4850b2029d8Kenneth Graunke " <operand>)", op_sym->value()); 743f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 744f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 745f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } else { 746f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list_length != 4) { 74721128c23c69d7dc0b46455591899e4850b2029d8Kenneth Graunke ir_read_error(st, list, "expected (expression <type> %s <operand>)", 748f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke op_sym->value()); 749f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 750f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 751f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 752f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 753f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *exp1 = (s_expression*) (op_sym->next); 754f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *arg1 = read_rvalue(st, exp1); 755f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (arg1 == NULL) { 75646a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading first operand of %s", 7574ec982fb86ae2476508d2027464241489243a170Kenneth Graunke op_sym->value()); 758f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 759f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 760f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 761f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke ir_rvalue *arg2 = NULL; 762f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (ir_expression::get_num_operands(op) == 2) { 763f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *exp2 = (s_expression*) (exp1->next); 764f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke arg2 = read_rvalue(st, exp2); 765f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (arg2 == NULL) { 76646a223224c55eaed7bf634d901f733098e674457Kenneth Graunke ir_read_error(st, NULL, "when reading second operand of %s", 767f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke op_sym->value()); 768f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 769f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 770f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 771f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 7721660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_expression(op, type, arg1, arg2); 773f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke} 774f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 775f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkestatic ir_swizzle * 776f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunkeread_swizzle(_mesa_glsl_parse_state *st, s_list *list) 777f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke{ 778f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (list->length() != 3) { 7794ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected (swiz <swizzle> <rvalue>)"); 780f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 781f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 782f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 783f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_symbol *swiz = SX_AS_SYMBOL(list->subexpressions.head->next); 784f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (swiz == NULL) { 7854ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected a valid swizzle; found non-symbol"); 786f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 787f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 788f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 789951632253f4f37ce058e2466bca5b96bb43ccfbfKenneth Graunke if (strlen(swiz->value()) > 4) { 7904ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected a valid swizzle; found %s", 7914ec982fb86ae2476508d2027464241489243a170Kenneth Graunke swiz->value()); 792f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 793f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 794f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 795f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke s_expression *sub = (s_expression*) swiz->next; 796f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke if (sub == NULL) { 7974ec982fb86ae2476508d2027464241489243a170Kenneth Graunke ir_read_error(st, list, "expected rvalue: (swizzle %s <rvalue>)", 7984ec982fb86ae2476508d2027464241489243a170Kenneth Graunke swiz->value()); 799f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke return NULL; 800f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke } 801f955649af3f23367d5e70f33a2bf958b11c2e127Kenneth Graunke 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 9303c7934bfaae5dff410cddba3ac6696a8911c0c68Kenneth Graunkestatic ir_dereference * 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 953451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkestatic ir_dereference * 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 974451381c220f145ac27a177c955dde30a9618fd00Kenneth Graunkestatic ir_dereference * 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); 1053dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_int *offset_y = SX_AS_INT(offset_x->next); 1054dd5b4a544bd53f192cc86441f4e7e95d93707382Kenneth Graunke s_int *offset_z = SX_AS_INT(offset_y->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