ast_function.cpp revision 13a19745d46d383fa7fc148ce129150ebde151b7
1548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick/* 2548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * Copyright © 2010 Intel Corporation 3548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * 4548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * Permission is hereby granted, free of charge, to any person obtaining a 5548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * copy of this software and associated documentation files (the "Software"), 6548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * to deal in the Software without restriction, including without limitation 7548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * and/or sell copies of the Software, and to permit persons to whom the 9548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * Software is furnished to do so, subject to the following conditions: 10548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * 11548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * The above copyright notice and this permission notice (including the next 12548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * paragraph) shall be included in all copies or substantial portions of the 13548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * Software. 14548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * 15548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * DEALINGS IN THE SOFTWARE. 22548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick */ 23548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick 248bde4cec6b189564b1f2d58514bd7e7a4b40f714Ian Romanick#include "glsl_symbol_table.h" 25548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick#include "ast.h" 26548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick#include "glsl_types.h" 27548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick#include "ir.h" 28548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick 2981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanickinline unsigned min(unsigned a, unsigned b) 3081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick{ 3181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick return (a < b) ? a : b; 3281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick} 3381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 3417a307d154489d718ab51a6272d2054868d782f6Kenneth Graunkestatic ir_rvalue * 3517a307d154489d718ab51a6272d2054868d782f6Kenneth Graunkeconvert_component(ir_rvalue *src, const glsl_type *desired_type); 3617a307d154489d718ab51a6272d2054868d782f6Kenneth Graunke 3768515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanickstatic unsigned 3868515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanickprocess_parameters(exec_list *instructions, exec_list *actual_parameters, 39304ea90233baeac6801a98e981658cb7a2d2501cIan Romanick exec_list *parameters, 4068515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick struct _mesa_glsl_parse_state *state) 41f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick{ 4268515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick unsigned count = 0; 4368515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 44304ea90233baeac6801a98e981658cb7a2d2501cIan Romanick foreach_list (n, parameters) { 45304ea90233baeac6801a98e981658cb7a2d2501cIan Romanick ast_node *const ast = exec_node_data(ast_node, n, link); 461a872b1af37927d689ec7af0921af7f3a9dcb1fdIan Romanick ir_rvalue *result = ast->hir(instructions, state); 471a872b1af37927d689ec7af0921af7f3a9dcb1fdIan Romanick 481a872b1af37927d689ec7af0921af7f3a9dcb1fdIan Romanick ir_constant *const constant = result->constant_expression_value(); 491a872b1af37927d689ec7af0921af7f3a9dcb1fdIan Romanick if (constant != NULL) 501a872b1af37927d689ec7af0921af7f3a9dcb1fdIan Romanick result = constant; 51f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick 523521f0bdd52d226031a3b60e2cd89b4629147690Ian Romanick actual_parameters->push_tail(result); 533521f0bdd52d226031a3b60e2cd89b4629147690Ian Romanick count++; 54f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick } 55f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick 5668515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick return count; 5768515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick} 5868515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 5968515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 6068515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanickstatic ir_rvalue * 6168515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanickprocess_call(exec_list *instructions, ir_function *f, 6268515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick YYLTYPE *loc, exec_list *actual_parameters, 6368515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick struct _mesa_glsl_parse_state *state) 6468515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick{ 65953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = state; 661660a2954797e056caba319c5d6c70b0d4be22feCarl Worth 671f47245bdda2c85bf0f0174e6c24a50486b413aaEric Anholt ir_function_signature *sig = f->matching_signature(actual_parameters); 6868515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 6968515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick /* The instructions param will be used when the FINISHMEs below are done */ 7068515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick (void) instructions; 7168515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 72f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick if (sig != NULL) { 73c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick /* Verify that 'out' and 'inout' actual parameters are lvalues. This 74c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick * isn't done in ir_function::matching_signature because that function 75c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick * cannot generate the necessary diagnostics. 76c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick */ 77c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick exec_list_iterator actual_iter = actual_parameters->iterator(); 78c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick exec_list_iterator formal_iter = sig->parameters.iterator(); 79c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick 80c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick while (actual_iter.has_next()) { 81f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt ir_rvalue *actual = (ir_rvalue *) actual_iter.get(); 82f1ddca9f2143e377d2a70941dcedbb1f5c699e07Eric Anholt ir_variable *formal = (ir_variable *) formal_iter.get(); 83c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick 84c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick assert(actual != NULL); 85c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick assert(formal != NULL); 86c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick 87c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick if ((formal->mode == ir_var_out) 88c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick || (formal->mode == ir_var_inout)) { 89c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick if (! actual->is_lvalue()) { 90c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick /* FINISHME: Log a better diagnostic here. There is no way 91c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick * FINISHME: to tell the user which parameter is invalid. 92c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick */ 93c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick _mesa_glsl_error(loc, state, "`%s' parameter is not lvalue", 94c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick (formal->mode == ir_var_out) ? "out" : "inout"); 95c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick } 96c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick } 97c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick 9817a307d154489d718ab51a6272d2054868d782f6Kenneth Graunke if (formal->type->is_numeric() || formal->type->is_boolean()) { 9917a307d154489d718ab51a6272d2054868d782f6Kenneth Graunke ir_rvalue *converted = convert_component(actual, formal->type); 10017a307d154489d718ab51a6272d2054868d782f6Kenneth Graunke actual->replace_with(converted); 10117a307d154489d718ab51a6272d2054868d782f6Kenneth Graunke } 10217a307d154489d718ab51a6272d2054868d782f6Kenneth Graunke 103c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick actual_iter.next(); 104c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick formal_iter.next(); 105c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick } 106c35bb00130a3f400af1ab9c5eff555c4f9e143d2Ian Romanick 10702d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt /* Always insert the call in the instruction stream, and return a deref 10802d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt * of its return val if it returns a value, since we don't know if 10902d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt * the rvalue is going to be assigned to anything or not. 11002d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt */ 11102d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt ir_call *call = new(ctx) ir_call(sig, actual_parameters); 11202d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt if (!sig->return_type->is_void()) { 11302d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt ir_variable *var; 11402d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt ir_dereference_variable *deref; 11502d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt 11602d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt var = new(ctx) ir_variable(sig->return_type, 11702d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt talloc_asprintf(ctx, "%s_retval", 1187e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick sig->function_name()), 1197e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary); 12002d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt instructions->push_tail(var); 12102d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt 12202d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt deref = new(ctx) ir_dereference_variable(var); 12302d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt ir_assignment *assign = new(ctx) ir_assignment(deref, call, NULL); 12402d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt instructions->push_tail(assign); 12502d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt 12602d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt deref = new(ctx) ir_dereference_variable(var); 12702d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt return deref; 12802d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt } else { 12902d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt instructions->push_tail(call); 13002d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt return NULL; 13102d3711a21f5766d286b09fbe1eda5d8520d151aEric Anholt } 132f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick } else { 133f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick /* FINISHME: Log a better error message here. G++ will show the types 134f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick * FINISHME: of the actual parameters and the set of candidate 135f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick * FINISHME: functions. A different error should also be logged when 136f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick * FINISHME: multiple functions match. 137f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick */ 138f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick _mesa_glsl_error(loc, state, "no matching function for call to `%s'", 13968515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick f->name); 140e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth return ir_call::get_error_instruction(ctx); 14168515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick } 14268515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick} 14368515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 14468515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 14568515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanickstatic ir_rvalue * 14668515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanickmatch_function_by_name(exec_list *instructions, const char *name, 147c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick YYLTYPE *loc, exec_list *actual_parameters, 14868515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick struct _mesa_glsl_parse_state *state) 14968515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick{ 150953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = state; 15168515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick ir_function *f = state->symbols->get_function(name); 15268515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 15368515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick if (f == NULL) { 15468515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick _mesa_glsl_error(loc, state, "function `%s' undeclared", name); 155e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth return ir_call::get_error_instruction(ctx); 156f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick } 15768515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick 158c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick /* Once we've determined that the function being called might exist, try 159c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick * to find an overload of the function that matches the parameters. 16068515ee6c2a41cf5c0476b3309fcb050ef37b0d2Ian Romanick */ 161c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick return process_call(instructions, f, loc, actual_parameters, state); 162f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick} 163f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick 164f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick 1650b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick/** 1660b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick * Perform automatic type conversion of constructor parameters 1670048c7aef82b17c6bd160f49125a91a70cbf2b55Kenneth Graunke * 1680048c7aef82b17c6bd160f49125a91a70cbf2b55Kenneth Graunke * This implements the rules in the "Conversion and Scalar Constructors" 1690048c7aef82b17c6bd160f49125a91a70cbf2b55Kenneth Graunke * section (GLSL 1.10 section 5.4.1), not the "Implicit Conversions" rules. 1700b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick */ 1710b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanickstatic ir_rvalue * 1720b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanickconvert_component(ir_rvalue *src, const glsl_type *desired_type) 1730b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick{ 1741660a2954797e056caba319c5d6c70b0d4be22feCarl Worth void *ctx = talloc_parent(src); 1750b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick const unsigned a = desired_type->base_type; 1760b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick const unsigned b = src->type->base_type; 17700eb466e38733f386794b35ae5b0aab18b60b1d2Ian Romanick ir_expression *result = NULL; 1780b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 1790b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick if (src->type->is_error()) 1800b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick return src; 1810b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 1820b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick assert(a <= GLSL_TYPE_BOOL); 1830b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick assert(b <= GLSL_TYPE_BOOL); 1840b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 1850b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick if ((a == b) || (src->type->is_integer() && desired_type->is_integer())) 1860b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick return src; 1870b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 1880b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick switch (a) { 1890b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick case GLSL_TYPE_UINT: 1900b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick case GLSL_TYPE_INT: 1910b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick if (b == GLSL_TYPE_FLOAT) 1921660a2954797e056caba319c5d6c70b0d4be22feCarl Worth result = new(ctx) ir_expression(ir_unop_f2i, desired_type, src, NULL); 1930b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick else { 1940b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick assert(b == GLSL_TYPE_BOOL); 1951660a2954797e056caba319c5d6c70b0d4be22feCarl Worth result = new(ctx) ir_expression(ir_unop_b2i, desired_type, src, NULL); 1960b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } 197565185cd8f3ea636d3d2aaad9218d63323390464Ian Romanick break; 1980b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick case GLSL_TYPE_FLOAT: 1990b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick switch (b) { 2000b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick case GLSL_TYPE_UINT: 2011660a2954797e056caba319c5d6c70b0d4be22feCarl Worth result = new(ctx) ir_expression(ir_unop_u2f, desired_type, src, NULL); 20200eb466e38733f386794b35ae5b0aab18b60b1d2Ian Romanick break; 2030b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick case GLSL_TYPE_INT: 2041660a2954797e056caba319c5d6c70b0d4be22feCarl Worth result = new(ctx) ir_expression(ir_unop_i2f, desired_type, src, NULL); 20500eb466e38733f386794b35ae5b0aab18b60b1d2Ian Romanick break; 2060b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick case GLSL_TYPE_BOOL: 2071660a2954797e056caba319c5d6c70b0d4be22feCarl Worth result = new(ctx) ir_expression(ir_unop_b2f, desired_type, src, NULL); 20800eb466e38733f386794b35ae5b0aab18b60b1d2Ian Romanick break; 2090b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } 2100b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick break; 21126b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick case GLSL_TYPE_BOOL: 212b74b43e4ba27a9b2e9da0f3499af261a4b997b00Ian Romanick switch (b) { 21326b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick case GLSL_TYPE_UINT: 21426b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick case GLSL_TYPE_INT: 21526b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick result = new(ctx) ir_expression(ir_unop_i2b, desired_type, src, NULL); 21626b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick break; 21726b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick case GLSL_TYPE_FLOAT: 21826b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick result = new(ctx) ir_expression(ir_unop_f2b, desired_type, src, NULL); 21926b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick break; 220b74b43e4ba27a9b2e9da0f3499af261a4b997b00Ian Romanick } 22126b5d33dce37755a6a4a799a9edfcdff8c5ce3e5Ian Romanick break; 2220b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } 2230b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 22400eb466e38733f386794b35ae5b0aab18b60b1d2Ian Romanick assert(result != NULL); 22500eb466e38733f386794b35ae5b0aab18b60b1d2Ian Romanick 2260048c7aef82b17c6bd160f49125a91a70cbf2b55Kenneth Graunke /* Try constant folding; it may fold in the conversion we just added. */ 22700eb466e38733f386794b35ae5b0aab18b60b1d2Ian Romanick ir_constant *const constant = result->constant_expression_value(); 22800eb466e38733f386794b35ae5b0aab18b60b1d2Ian Romanick return (constant != NULL) ? (ir_rvalue *) constant : (ir_rvalue *) result; 2290b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick} 2300b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 2310b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick/** 2320b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick * Dereference a specific component from a scalar, vector, or matrix 2330b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick */ 2340b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanickstatic ir_rvalue * 2350b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanickdereference_component(ir_rvalue *src, unsigned component) 2360b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick{ 2371660a2954797e056caba319c5d6c70b0d4be22feCarl Worth void *ctx = talloc_parent(src); 2380b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick assert(component < src->type->components()); 2390b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 240c9cb1032be454ff5fdb802a629565cfaeb2e5d5aIan Romanick /* If the source is a constant, just create a new constant instead of a 241c9cb1032be454ff5fdb802a629565cfaeb2e5d5aIan Romanick * dereference of the existing constant. 242c9cb1032be454ff5fdb802a629565cfaeb2e5d5aIan Romanick */ 243c9cb1032be454ff5fdb802a629565cfaeb2e5d5aIan Romanick ir_constant *constant = src->as_constant(); 244c9cb1032be454ff5fdb802a629565cfaeb2e5d5aIan Romanick if (constant) 2451660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_constant(constant, component); 246c9cb1032be454ff5fdb802a629565cfaeb2e5d5aIan Romanick 2470b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick if (src->type->is_scalar()) { 2480b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick return src; 2490b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } else if (src->type->is_vector()) { 2501660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_swizzle(src, component, 0, 0, 0, 1); 2510b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } else { 2520b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick assert(src->type->is_matrix()); 2530b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 2540b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick /* Dereference a row of the matrix, then call this function again to get 2550b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick * a specific element from that row. 2560b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick */ 2570b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick const int c = component / src->type->column_type()->vector_elements; 2580b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick const int r = component % src->type->column_type()->vector_elements; 2591660a2954797e056caba319c5d6c70b0d4be22feCarl Worth ir_constant *const col_index = new(ctx) ir_constant(c); 2601660a2954797e056caba319c5d6c70b0d4be22feCarl Worth ir_dereference *const col = new(ctx) ir_dereference_array(src, col_index); 2610b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 2620b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick col->type = src->type->column_type(); 2630b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 2640b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick return dereference_component(col, r); 2650b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } 2660b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 2670b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick assert(!"Should not get here."); 2680b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick return NULL; 2690b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick} 2700b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 2710b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 27200aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanickstatic ir_rvalue * 27300aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanickprocess_array_constructor(exec_list *instructions, 27400aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick const glsl_type *constructor_type, 275304ea90233baeac6801a98e981658cb7a2d2501cIan Romanick YYLTYPE *loc, exec_list *parameters, 27600aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick struct _mesa_glsl_parse_state *state) 27700aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick{ 278953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = state; 27900aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick /* Array constructors come in two forms: sized and unsized. Sized array 28000aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * constructors look like 'vec4[2](a, b)', where 'a' and 'b' are vec4 28100aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * variables. In this case the number of parameters must exactly match the 28200aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * specified size of the array. 28300aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * 28400aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * Unsized array constructors look like 'vec4[](a, b)', where 'a' and 'b' 28500aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * are vec4 variables. In this case the size of the array being constructed 28600aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * is determined by the number of parameters. 28700aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * 28800aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * From page 52 (page 58 of the PDF) of the GLSL 1.50 spec: 28900aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * 29000aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * "There must be exactly the same number of arguments as the size of 29100aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * the array being constructed. If no size is present in the 29200aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * constructor, then the array is explicitly sized to the number of 29300aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * arguments provided. The arguments are assigned in order, starting at 29400aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * element 0, to the elements of the constructed array. Each argument 29500aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * must be the same type as the element type of the array, or be a type 29600aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * that can be converted to the element type of the array according to 29700aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick * Section 4.1.10 "Implicit Conversions."" 29800aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick */ 29900aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick exec_list actual_parameters; 30000aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick const unsigned parameter_count = 30100aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick process_parameters(instructions, &actual_parameters, parameters, state); 30200aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 30300aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick if ((parameter_count == 0) 30400aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick || ((constructor_type->length != 0) 30500aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick && (constructor_type->length != parameter_count))) { 30600aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick const unsigned min_param = (constructor_type->length == 0) 30700aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick ? 1 : constructor_type->length; 30800aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 30900aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick _mesa_glsl_error(loc, state, "array constructor must have %s %u " 31000aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick "parameter%s", 31100aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick (constructor_type->length != 0) ? "at least" : "exactly", 31200aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick min_param, (min_param <= 1) ? "" : "s"); 313e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth return ir_call::get_error_instruction(ctx); 31400aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick } 31500aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 31600aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick if (constructor_type->length == 0) { 31700aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick constructor_type = 318f38d15b80d4e4c8ecb7a76087cdc49835f0aa271Ian Romanick glsl_type::get_array_instance(constructor_type->element_type(), 31900aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick parameter_count); 32000aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick assert(constructor_type != NULL); 32100aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick assert(constructor_type->length == parameter_count); 32200aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick } 32300aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 32413a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke bool all_parameters_are_constant = true; 32500aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 32613a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke /* Type cast each parameter and, if possible, fold constants. */ 32713a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke foreach_list_safe(n, &actual_parameters) { 32813a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir_rvalue *ir = (ir_rvalue *) n; 32913a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir_rvalue *result = ir; 33013a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke 33113a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke /* Apply implicit conversions (not the scalar constructor rules!) */ 33213a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke if (constructor_type->element_type()->is_float()) { 33313a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke const glsl_type *desired_type = 33413a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke glsl_type::get_instance(GLSL_TYPE_FLOAT, 33513a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir->type->vector_elements, 33613a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir->type->matrix_columns); 33713a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke result = convert_component(ir, desired_type); 33813a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke } 33913a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke 34013a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke if (result->type != constructor_type->element_type()) { 34113a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke _mesa_glsl_error(loc, state, "type error in array constructor: " 34213a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke "expected: %s, found %s", 34313a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke constructor_type->element_type()->name, 34413a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke result->type->name); 34513a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke } 34613a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke 34713a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke /* Attempt to convert the parameter to a constant valued expression. 34813a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke * After doing so, track whether or not all the parameters to the 34913a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke * constructor are trivially constant valued expressions. 35013a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke */ 35113a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir_rvalue *const constant = result->constant_expression_value(); 35213a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke 35313a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke if (constant != NULL) 35413a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke result = constant; 35513a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke else 35613a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke all_parameters_are_constant = false; 35713a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke 35813a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir->replace_with(result); 35913a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke } 36013a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke 36113a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke if (all_parameters_are_constant) { 36213a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke /* FINISHME: Add support for generating constant arrays. */ 36300aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick } 36400aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 36513a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir_variable *var = new(ctx) ir_variable(constructor_type, "array_ctor", 36613a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir_var_temporary); 36713a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke instructions->push_tail(var); 36813a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke 36913a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke int i = 0; 37013a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke foreach_list(node, &actual_parameters) { 37113a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir_rvalue *rhs = (ir_rvalue *) node; 37213a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir_rvalue *lhs = new(ctx) ir_dereference_array(var, 37313a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke new(ctx) ir_constant(i)); 37400aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 37513a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke ir_instruction *assignment = new(ctx) ir_assignment(lhs, rhs, NULL); 37613a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke instructions->push_tail(assignment); 37713a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke 37813a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke i++; 37913a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke } 38000aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 38113a19745d46d383fa7fc148ce129150ebde151b7Kenneth Graunke return new(ctx) ir_dereference_variable(var); 38200aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick} 38300aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 38400aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick 385ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick/** 386ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick * Try to convert a record constructor to a constant expression 387ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick */ 388ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanickstatic ir_constant * 389ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanickconstant_record_constructor(const glsl_type *constructor_type, 390ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick YYLTYPE *loc, exec_list *parameters, 391ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick struct _mesa_glsl_parse_state *state) 392ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick{ 393953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = state; 394ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick bool all_parameters_are_constant = true; 395ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 396ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick exec_node *node = parameters->head; 397ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick for (unsigned i = 0; i < constructor_type->length; i++) { 398ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick ir_instruction *ir = (ir_instruction *) node; 399ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 400ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick if (node->is_tail_sentinal()) { 401ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick _mesa_glsl_error(loc, state, 402ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick "insufficient parameters to constructor for `%s'", 403ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick constructor_type->name); 404ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick return NULL; 405ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick } 406ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 407ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick if (ir->type != constructor_type->fields.structure[i].type) { 408ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick _mesa_glsl_error(loc, state, 409ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick "parameter type mismatch in constructor for `%s' " 410ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick " (%s vs %s)", 411ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick constructor_type->name, 412ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick ir->type->name, 413ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick constructor_type->fields.structure[i].type->name); 414ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick return NULL; 415ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick } 416ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 417ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick if (ir->as_constant() == NULL) 418ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick all_parameters_are_constant = false; 419ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 420ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick node = node->next; 421ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick } 422ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 423ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick if (!all_parameters_are_constant) 424ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick return NULL; 425ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 4261660a2954797e056caba319c5d6c70b0d4be22feCarl Worth return new(ctx) ir_constant(constructor_type, parameters); 427ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick} 428ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 429ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 430be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick/** 431be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * Generate data for a constant matrix constructor w/a single scalar parameter 432be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * 433be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * Matrix constructors in GLSL can be passed a single scalar of the 434be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * approriate type. In these cases, the resulting matrix is the identity 435be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * matrix multipled by the specified scalar. This function generates data for 436be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * that matrix. 437be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * 438be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * \param type Type of the desired matrix. 439be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * \param initializer Scalar value used to initialize the matrix diagonal. 440be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * \param data Location to store the resulting matrix. 441be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick */ 442be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanickvoid 443be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanickgenerate_constructor_matrix(const glsl_type *type, ir_constant *initializer, 444be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick ir_constant_data *data) 445be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick{ 446be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick switch (type->base_type) { 447be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick case GLSL_TYPE_UINT: 448be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick case GLSL_TYPE_INT: 449be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick for (unsigned i = 0; i < type->components(); i++) 450be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick data->u[i] = 0; 451be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 452be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick for (unsigned i = 0; i < type->matrix_columns; i++) { 453be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick /* The array offset of the ith row and column of the matrix. 454be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick */ 455be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick const unsigned idx = (i * type->vector_elements) + i; 456be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 457be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick data->u[idx] = initializer->value.u[0]; 458be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick } 459be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick break; 460be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 461be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick case GLSL_TYPE_FLOAT: 462be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick for (unsigned i = 0; i < type->components(); i++) 463be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick data->f[i] = 0; 464be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 465be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick for (unsigned i = 0; i < type->matrix_columns; i++) { 466be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick /* The array offset of the ith row and column of the matrix. 467be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick */ 468be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick const unsigned idx = (i * type->vector_elements) + i; 469be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 470be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick data->f[idx] = initializer->value.f[0]; 471be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick } 472be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 473be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick break; 474be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 475be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick default: 476be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick assert(!"Should not get here."); 477be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick break; 478be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick } 479be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick} 480be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 481be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 482be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick/** 483be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * Generate data for a constant vector constructor w/a single scalar parameter 484be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * 485be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * Vector constructors in GLSL can be passed a single scalar of the 486be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * approriate type. In these cases, the resulting vector contains the specified 487be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * value in all components. This function generates data for that vector. 488be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * 489be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * \param type Type of the desired vector. 490be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * \param initializer Scalar value used to initialize the vector. 491be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick * \param data Location to store the resulting vector data. 492be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick */ 493be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanickvoid 494be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanickgenerate_constructor_vector(const glsl_type *type, ir_constant *initializer, 495be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick ir_constant_data *data) 496be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick{ 497be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick switch (type->base_type) { 498be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick case GLSL_TYPE_UINT: 499be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick case GLSL_TYPE_INT: 500be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick for (unsigned i = 0; i < type->components(); i++) 501be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick data->u[i] = initializer->value.u[0]; 502be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 503be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick break; 504be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 505be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick case GLSL_TYPE_FLOAT: 506be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick for (unsigned i = 0; i < type->components(); i++) 507be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick data->f[i] = initializer->value.f[0]; 508be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 509be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick break; 510be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 511be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick case GLSL_TYPE_BOOL: 512be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick for (unsigned i = 0; i < type->components(); i++) 513be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick data->b[i] = initializer->value.b[0]; 514be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 515be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick break; 516be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 517be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick default: 518be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick assert(!"Should not get here."); 519be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick break; 520be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick } 521be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick} 522be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 523be1d2bfdeab5781b6546b704b566aa214e79da06Ian Romanick 524c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick/** 525c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * Determine if a list consists of a single scalar r-value 526c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick */ 527c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanickbool 528c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanicksingle_scalar_parameter(exec_list *parameters) 529c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick{ 530c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick const ir_rvalue *const p = (ir_rvalue *) parameters->head; 531c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick assert(((ir_rvalue *)p)->as_rvalue() != NULL); 532c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 533c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick return (p->type->is_scalar() && p->next->is_tail_sentinal()); 534c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick} 535c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 536c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 537c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick/** 538c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * Generate inline code for a vector constructor 539c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * 540c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * The generated constructor code will consist of a temporary variable 541c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * declaration of the same type as the constructor. A sequence of assignments 542c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * from constructor parameters to the temporary will follow. 543c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * 544c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * \return 545c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * An \c ir_dereference_variable of the temprorary generated in the constructor 546c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * body. 547c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick */ 548c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanickir_rvalue * 549c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanickemit_inline_vector_constructor(const glsl_type *type, 550c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick exec_list *instructions, 551c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick exec_list *parameters, 552c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick void *ctx) 553c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick{ 554c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick assert(!parameters->is_empty()); 555c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 5564b6feb0398458a69259e3b77d7a8573b926f2039Ian Romanick ir_variable *var = new(ctx) ir_variable(type, 5577e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick talloc_strdup(ctx, "vec_ctor"), 5587e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary); 559c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick instructions->push_tail(var); 560c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 561c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick /* There are two kinds of vector constructors. 562c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * 563c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * - Construct a vector from a single scalar by replicating that scalar to 564c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * all components of the vector. 565c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * 566c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * - Construct a vector from an arbirary combination of vectors and 567c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * scalars. The components of the constructor parameters are assigned 568c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * to the vector in order until the vector is full. 569c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick */ 570c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick const unsigned lhs_components = type->components(); 571c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick if (single_scalar_parameter(parameters)) { 572c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick ir_rvalue *first_param = (ir_rvalue *)parameters->head; 573c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick ir_rvalue *rhs = new(ctx) ir_swizzle(first_param, 0, 0, 0, 0, 574c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick lhs_components); 575c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick ir_dereference_variable *lhs = new(ctx) ir_dereference_variable(var); 576c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 577c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick assert(rhs->type == lhs->type); 578c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 579c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL); 580c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick instructions->push_tail(inst); 581c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick } else { 582c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick unsigned base_component = 0; 583c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick foreach_list(node, parameters) { 584c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick ir_rvalue *rhs = (ir_rvalue *) node; 585c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick unsigned rhs_components = rhs->type->components(); 586c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 587c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick /* Do not try to assign more components to the vector than it has! 588c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick */ 589c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick if ((rhs_components + base_component) > lhs_components) { 590c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick rhs_components = lhs_components - base_component; 591c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick } 592c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 593c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick /* Emit an assignment of the constructor parameter to the next set of 594c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * components in the temporary variable. 595c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick */ 596c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick unsigned mask[4] = { 0, 0, 0, 0 }; 597c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick for (unsigned i = 0; i < rhs_components; i++) { 598c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick mask[i] = i + base_component; 599c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick } 600c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 601c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 602c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick ir_rvalue *lhs_ref = new(ctx) ir_dereference_variable(var); 603c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick ir_swizzle *lhs = new(ctx) ir_swizzle(lhs_ref, mask, rhs_components); 604c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 605c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL); 606c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick instructions->push_tail(inst); 607c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 608c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick /* Advance the component index by the number of components that were 609c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick * just assigned. 610c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick */ 611c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick base_component += rhs_components; 612c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick } 613c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick } 614c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick return new(ctx) ir_dereference_variable(var); 615c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick} 616c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 617c31dcdf57ed9646580040ebfe44c2609885fe96bIan Romanick 61881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick/** 61981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * Generate assignment of a portion of a vector to a portion of a matrix column 62081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 62181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * \param src_base First component of the source to be used in assignment 62281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * \param column Column of destination to be assiged 62381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * \param row_base First component of the destination column to be assigned 62481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * \param count Number of components to be assigned 62581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 62681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * \note 62781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * \c src_base + \c count must be less than or equal to the number of components 62881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * in the source vector. 62981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 63081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanickir_instruction * 63181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanickassign_to_matrix_column(ir_variable *var, unsigned column, unsigned row_base, 63281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *src, unsigned src_base, unsigned count, 63381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick TALLOC_CTX *ctx) 63481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick{ 63581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned mask[8] = { 0, 1, 2, 3, 0, 0, 0, 0 }; 63681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 63781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_constant *col_idx = new(ctx) ir_constant(column); 63881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *column_ref = new(ctx) ir_dereference_array(var, col_idx); 63981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 64081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick assert(column_ref->type->components() >= (row_base + count)); 64181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *lhs = new(ctx) ir_swizzle(column_ref, &mask[row_base], count); 64281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 64381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick assert(src->type->components() >= (src_base + count)); 64481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *rhs = new(ctx) ir_swizzle(src, &mask[src_base], count); 64581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 64681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick return new(ctx) ir_assignment(lhs, rhs, NULL); 64781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick} 64881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 64981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 65081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick/** 65181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * Generate inline code for a matrix constructor 65281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 65381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * The generated constructor code will consist of a temporary variable 65481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * declaration of the same type as the constructor. A sequence of assignments 65581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * from constructor parameters to the temporary will follow. 65681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 65781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * \return 65881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * An \c ir_dereference_variable of the temprorary generated in the constructor 65981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * body. 66081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 66181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanickir_rvalue * 66281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanickemit_inline_matrix_constructor(const glsl_type *type, 66381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick exec_list *instructions, 66481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick exec_list *parameters, 66581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick void *ctx) 66681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick{ 66781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick assert(!parameters->is_empty()); 66881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 6694b6feb0398458a69259e3b77d7a8573b926f2039Ian Romanick ir_variable *var = new(ctx) ir_variable(type, 6707e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick talloc_strdup(ctx, "mat_ctor"), 6717e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary); 67281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(var); 67381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 67481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* There are three kinds of matrix constructors. 67581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 67681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * - Construct a matrix from a single scalar by replicating that scalar to 67781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * along the diagonal of the matrix and setting all other components to 67881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * zero. 67981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 68081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * - Construct a matrix from an arbirary combination of vectors and 68181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * scalars. The components of the constructor parameters are assigned 68281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * to the matrix in colum-major order until the matrix is full. 68381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 68481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * - Construct a matrix from a single matrix. The source matrix is copied 68581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * to the upper left portion of the constructed matrix, and the remaining 68681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * elements take values from the identity matrix. 68781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 68881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const first_param = (ir_rvalue *) parameters->head; 68981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick if (single_scalar_parameter(parameters)) { 69081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* Assign the scalar to the X component of a vec4, and fill the remaining 69181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * components with zero. 69281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 6934b6feb0398458a69259e3b77d7a8573b926f2039Ian Romanick ir_variable *rhs_var = 6944b6feb0398458a69259e3b77d7a8573b926f2039Ian Romanick new(ctx) ir_variable(glsl_type::vec4_type, 6957e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick talloc_strdup(ctx, "mat_ctor_vec"), 6967e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary); 69781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(rhs_var); 69881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 69981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_constant_data zero; 70081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick zero.f[0] = 0.0; 70181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick zero.f[1] = 0.0; 70281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick zero.f[2] = 0.0; 70381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick zero.f[3] = 0.0; 70481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 70581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_instruction *inst = 70681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick new(ctx) ir_assignment(new(ctx) ir_dereference_variable(rhs_var), 70781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick new(ctx) ir_constant(rhs_var->type, &zero), 70881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick NULL); 70981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 71081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 71181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const rhs_ref = new(ctx) ir_dereference_variable(rhs_var); 71281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const x_of_rhs = new(ctx) ir_swizzle(rhs_ref, 0, 0, 0, 0, 1); 71381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 71481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick inst = new(ctx) ir_assignment(x_of_rhs, first_param, NULL); 71581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 71681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 71781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* Assign the temporary vector to each column of the destination matrix 71881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * with a swizzle that puts the X component on the diagonal of the 71981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * matrix. In some cases this may mean that the X component does not 72081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * get assigned into the column at all (i.e., when the matrix has more 72181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * columns than rows). 72281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 72381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick static const unsigned rhs_swiz[4][4] = { 72481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick { 0, 1, 1, 1 }, 72581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick { 1, 0, 1, 1 }, 72681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick { 1, 1, 0, 1 }, 72781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick { 1, 1, 1, 0 } 72881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick }; 72981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 73081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned cols_to_init = min(type->matrix_columns, 73181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick type->vector_elements); 73281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick for (unsigned i = 0; i < cols_to_init; i++) { 73381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_constant *const col_idx = new(ctx) ir_constant(i); 73481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const col_ref = new(ctx) ir_dereference_array(var, col_idx); 73581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 73681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const rhs_ref = new(ctx) ir_dereference_variable(rhs_var); 73781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const rhs = new(ctx) ir_swizzle(rhs_ref, rhs_swiz[i], 73881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick type->vector_elements); 73981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 74081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick inst = new(ctx) ir_assignment(col_ref, rhs, NULL); 74181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 74281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 74381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 74481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick for (unsigned i = cols_to_init; i < type->matrix_columns; i++) { 74581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_constant *const col_idx = new(ctx) ir_constant(i); 74681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const col_ref = new(ctx) ir_dereference_array(var, col_idx); 74781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 74881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const rhs_ref = new(ctx) ir_dereference_variable(rhs_var); 74981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const rhs = new(ctx) ir_swizzle(rhs_ref, 1, 1, 1, 1, 75081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick type->vector_elements); 75181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 75281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick inst = new(ctx) ir_assignment(col_ref, rhs, NULL); 75381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 75481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 75581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } else if (first_param->type->is_matrix()) { 75681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* From page 50 (56 of the PDF) of the GLSL 1.50 spec: 75781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 75881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * "If a matrix is constructed from a matrix, then each component 75981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * (column i, row j) in the result that has a corresponding 76081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * component (column i, row j) in the argument will be initialized 76181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * from there. All other components will be initialized to the 76281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * identity matrix. If a matrix argument is given to a matrix 76381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * constructor, it is an error to have any other arguments." 76481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 76581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick assert(first_param->next->is_tail_sentinal()); 76681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const src_matrix = first_param; 76781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 76881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* If the source matrix is smaller, pre-initialize the relavent parts of 76981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * the destination matrix to the identity matrix. 77081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 77181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick if ((src_matrix->type->matrix_columns < var->type->matrix_columns) 77281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick || (src_matrix->type->vector_elements < var->type->vector_elements)) { 77381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 77481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* If the source matrix has fewer rows, every column of the destination 77581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * must be initialized. Otherwise only the columns in the destination 77681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * that do not exist in the source must be initialized. 77781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 77881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick unsigned col = 77981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick (src_matrix->type->vector_elements < var->type->vector_elements) 78081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ? 0 : src_matrix->type->matrix_columns; 78181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 78281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const glsl_type *const col_type = var->type->column_type(); 78381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick for (/* empty */; col < var->type->matrix_columns; col++) { 78481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_constant_data ident; 78581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 78681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ident.f[0] = 0.0; 78781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ident.f[1] = 0.0; 78881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ident.f[2] = 0.0; 78981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ident.f[3] = 0.0; 79081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 79181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ident.f[col] = 1.0; 79281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 79381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const rhs = new(ctx) ir_constant(col_type, &ident); 79481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 79581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const lhs = 79681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick new(ctx) ir_dereference_array(var, new(ctx) ir_constant(col)); 79781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 79881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL); 79981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 80081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 80181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 80281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 80381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* Assign columns from the source matrix to the destination matrix. 80481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 80581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * Since the parameter will be used in the RHS of multiple assignments, 80681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * generate a temporary and copy the paramter there. 80781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 8084b6feb0398458a69259e3b77d7a8573b926f2039Ian Romanick ir_variable *const rhs_var = 8094b6feb0398458a69259e3b77d7a8573b926f2039Ian Romanick new(ctx) ir_variable(first_param->type, 8107e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick talloc_strdup(ctx, "mat_ctor_mat"), 8117e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary); 81281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(rhs_var); 81381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 81481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_dereference *const rhs_var_ref = 81581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick new(ctx) ir_dereference_variable(rhs_var); 81681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_instruction *const inst = 81781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick new(ctx) ir_assignment(rhs_var_ref, first_param, NULL); 81881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 81981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 82081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 82181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned swiz[4] = { 0, 1, 2, 3 }; 82281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned last_col = min(src_matrix->type->matrix_columns, 82381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick var->type->matrix_columns); 82481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick for (unsigned i = 0; i < last_col; i++) { 82581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const lhs_col = 82681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick new(ctx) ir_dereference_array(var, new(ctx) ir_constant(i)); 82781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const rhs_col = 82881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick new(ctx) ir_dereference_array(rhs_var, new(ctx) ir_constant(i)); 82981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 83081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* If one matrix has columns that are smaller than the columns of the 83181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * other matrix, wrap the column access of the larger with a swizzle 83281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * so that the LHS and RHS of the assignment have the same size (and 83381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * therefore have the same type). 83481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 83581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * It would be perfectly valid to unconditionally generate the 83681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * swizzles, this this will typically result in a more compact IR tree. 83781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 83881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *lhs; 83981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *rhs; 84081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick if (lhs_col->type->vector_elements < rhs_col->type->vector_elements) { 84181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick lhs = lhs_col; 84281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 84381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs = new(ctx) ir_swizzle(rhs_col, swiz, 84481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick lhs_col->type->vector_elements); 84581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } else if (lhs_col->type->vector_elements 84681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick > rhs_col->type->vector_elements) { 84781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick lhs = new(ctx) ir_swizzle(lhs_col, swiz, 84881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs_col->type->vector_elements); 84981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs = rhs_col; 85081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } else { 85181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick lhs = lhs_col; 85281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs = rhs_col; 85381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 85481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 85581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick assert(lhs->type == rhs->type); 85681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 85781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_instruction *inst = new(ctx) ir_assignment(lhs, rhs, NULL); 85881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 85981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 86081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } else { 86181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned rows = type->matrix_columns; 86281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned cols = type->vector_elements; 86381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick unsigned col_idx = 0; 86481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick unsigned row_idx = 0; 86581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 86681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick foreach_list (node, parameters) { 86781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_rvalue *const rhs = (ir_rvalue *) node; 86881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned components_remaining_this_column = rows - row_idx; 86981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick unsigned rhs_components = rhs->type->components(); 87081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick unsigned rhs_base = 0; 87181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 87281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* Since the parameter might be used in the RHS of two assignments, 87381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * generate a temporary and copy the paramter there. 87481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 8754b6feb0398458a69259e3b77d7a8573b926f2039Ian Romanick ir_variable *rhs_var = 8764b6feb0398458a69259e3b77d7a8573b926f2039Ian Romanick new(ctx) ir_variable(rhs->type, 8777e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick talloc_strdup(ctx, "mat_ctor_vec"), 8787e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary); 87981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(rhs_var); 88081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 88181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_dereference *rhs_var_ref = 88281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick new(ctx) ir_dereference_variable(rhs_var); 88381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_instruction *inst = new(ctx) ir_assignment(rhs_var_ref, rhs, NULL); 88481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 88581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 88681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* Assign the current parameter to as many components of the matrix 88781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * as it will fill. 88881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * 88981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * NOTE: A single vector parameter can span two matrix columns. A 89081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * single vec4, for example, can completely fill a mat2. 89181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 89281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick if (rhs_components >= components_remaining_this_column) { 89381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned count = min(rhs_components, 89481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick components_remaining_this_column); 89581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 89681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs_var_ref = new(ctx) ir_dereference_variable(rhs_var); 89781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 89881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_instruction *inst = assign_to_matrix_column(var, col_idx, 89981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick row_idx, 90081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs_var_ref, 0, 90181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick count, ctx); 90281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 90381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 90481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs_base = count; 90581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 90681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick col_idx++; 90781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick row_idx = 0; 90881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 90981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 91081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick /* If there is data left in the parameter and components left to be 91181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * set in the destination, emit another assignment. It is possible 91281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * that the assignment could be of a vec4 to the last element of the 91381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * matrix. In this case col_idx==cols, but there is still data 91481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * left in the source parameter. Obviously, don't emit an assignment 91581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick * to data outside the destination matrix. 91681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick */ 91781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick if ((col_idx < cols) && (rhs_base < rhs_components)) { 91881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick const unsigned count = rhs_components - rhs_base; 91981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 92081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs_var_ref = new(ctx) ir_dereference_variable(rhs_var); 92181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 92281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick ir_instruction *inst = assign_to_matrix_column(var, col_idx, 92381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick row_idx, 92481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs_var_ref, 92581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick rhs_base, 92681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick count, ctx); 92781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick instructions->push_tail(inst); 92881c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 92981c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick row_idx += count; 93081c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 93181c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 93281c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick } 93381c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 93481c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick return new(ctx) ir_dereference_variable(var); 93581c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick} 93681c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 93781c7e94466da19f9295b8eb5e4b5e587fea96284Ian Romanick 938fb9fb5f51deca28ed1ec7b71759fb71fc26a0ab6Kenneth Graunkeir_rvalue * 939548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanickast_function_expression::hir(exec_list *instructions, 940548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick struct _mesa_glsl_parse_state *state) 941548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick{ 942953ff1283d3d52e6a6b4850c2b0b574111625010Kenneth Graunke void *ctx = state; 943548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick /* There are three sorts of function calls. 944548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * 945f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * 1. constructors - The first subexpression is an ast_type_specifier. 946548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * 2. methods - Only the .length() method of array types. 947548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * 3. functions - Calls to regular old functions. 948548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * 949548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * Method calls are actually detected when the ast_field_selection 950548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick * expression is handled. 951548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick */ 952548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick if (is_constructor()) { 953abef9557642f77d406452f3c32e5e49ced212571Ian Romanick const ast_type_specifier *type = (ast_type_specifier *) subexpressions[0]; 954abef9557642f77d406452f3c32e5e49ced212571Ian Romanick YYLTYPE loc = type->get_location(); 9553e0ef5f81b08a1496d952d3673b614497be9c75aIan Romanick const char *name; 956abef9557642f77d406452f3c32e5e49ced212571Ian Romanick 9573e0ef5f81b08a1496d952d3673b614497be9c75aIan Romanick const glsl_type *const constructor_type = type->glsl_type(& name, state); 958abef9557642f77d406452f3c32e5e49ced212571Ian Romanick 959abef9557642f77d406452f3c32e5e49ced212571Ian Romanick 960abef9557642f77d406452f3c32e5e49ced212571Ian Romanick /* Constructors for samplers are illegal. 961abef9557642f77d406452f3c32e5e49ced212571Ian Romanick */ 962abef9557642f77d406452f3c32e5e49ced212571Ian Romanick if (constructor_type->is_sampler()) { 963abef9557642f77d406452f3c32e5e49ced212571Ian Romanick _mesa_glsl_error(& loc, state, "cannot construct sampler type `%s'", 964abef9557642f77d406452f3c32e5e49ced212571Ian Romanick constructor_type->name); 965e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth return ir_call::get_error_instruction(ctx); 966abef9557642f77d406452f3c32e5e49ced212571Ian Romanick } 967abef9557642f77d406452f3c32e5e49ced212571Ian Romanick 968b6326abb859550963446affe9123085fd57f9525Ian Romanick if (constructor_type->is_array()) { 969b6326abb859550963446affe9123085fd57f9525Ian Romanick if (state->language_version <= 110) { 970b6326abb859550963446affe9123085fd57f9525Ian Romanick _mesa_glsl_error(& loc, state, 971b6326abb859550963446affe9123085fd57f9525Ian Romanick "array constructors forbidden in GLSL 1.10"); 972e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth return ir_call::get_error_instruction(ctx); 973b6326abb859550963446affe9123085fd57f9525Ian Romanick } 974b6326abb859550963446affe9123085fd57f9525Ian Romanick 97500aa173c9cbc1d6c50bcb5caf569558759ce26d8Ian Romanick return process_array_constructor(instructions, constructor_type, 9763521f0bdd52d226031a3b60e2cd89b4629147690Ian Romanick & loc, &this->expressions, state); 977b6326abb859550963446affe9123085fd57f9525Ian Romanick } 978abef9557642f77d406452f3c32e5e49ced212571Ian Romanick 979abef9557642f77d406452f3c32e5e49ced212571Ian Romanick /* There are two kinds of constructor call. Constructors for built-in 980abef9557642f77d406452f3c32e5e49ced212571Ian Romanick * language types, such as mat4 and vec2, are free form. The only 981abef9557642f77d406452f3c32e5e49ced212571Ian Romanick * requirement is that the parameters must provide enough values of the 982abef9557642f77d406452f3c32e5e49ced212571Ian Romanick * correct scalar type. Constructors for arrays and structures must 983abef9557642f77d406452f3c32e5e49ced212571Ian Romanick * have the exact number of parameters with matching types in the 984abef9557642f77d406452f3c32e5e49ced212571Ian Romanick * correct order. These constructors follow essentially the same type 985abef9557642f77d406452f3c32e5e49ced212571Ian Romanick * matching rules as functions. 986abef9557642f77d406452f3c32e5e49ced212571Ian Romanick */ 987f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if (!constructor_type->is_numeric() && !constructor_type->is_boolean()) 988f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return ir_call::get_error_instruction(ctx); 9890b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 990f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* Total number of components of the type being constructed. */ 991f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke const unsigned type_components = constructor_type->components(); 9923521f0bdd52d226031a3b60e2cd89b4629147690Ian Romanick 993f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* Number of components from parameters that have actually been 994f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * consumed. This is used to perform several kinds of error checking. 995f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke */ 996f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke unsigned components_used = 0; 9973521f0bdd52d226031a3b60e2cd89b4629147690Ian Romanick 998f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke unsigned matrix_parameters = 0; 999f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke unsigned nonmatrix_parameters = 0; 1000f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke exec_list actual_parameters; 10010b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 1002f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke foreach_list (n, &this->expressions) { 1003f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke ast_node *ast = exec_node_data(ast_node, n, link); 1004f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke ir_rvalue *result = ast->hir(instructions, state)->as_rvalue(); 10050b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 10060b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick /* From page 50 (page 56 of the PDF) of the GLSL 1.50 spec: 10070b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick * 1008f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * "It is an error to provide extra arguments beyond this 1009f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * last used argument." 10100b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick */ 1011f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if (components_used >= type_components) { 1012f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke _mesa_glsl_error(& loc, state, "too many parameters to `%s' " 1013f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke "constructor", 10140b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick constructor_type->name); 1015e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth return ir_call::get_error_instruction(ctx); 10160b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } 10170b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 1018f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if (!result->type->is_numeric() && !result->type->is_boolean()) { 1019f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke _mesa_glsl_error(& loc, state, "cannot construct `%s' from a " 1020f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke "non-numeric data type", 10210b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick constructor_type->name); 1022e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth return ir_call::get_error_instruction(ctx); 10230b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } 10240b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 1025f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* Count the number of matrix and nonmatrix parameters. This 1026f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * is used below to enforce some of the constructor rules. 1027f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke */ 1028f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if (result->type->is_matrix()) 1029f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke matrix_parameters++; 1030f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke else 1031f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke nonmatrix_parameters++; 10320b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick 1033f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke actual_parameters.push_tail(result); 1034f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke components_used += result->type->components(); 10350b7dcc80eb3163b46d40c5175a27a2ea4264fcd3Ian Romanick } 1036abef9557642f77d406452f3c32e5e49ced212571Ian Romanick 1037f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* From page 28 (page 34 of the PDF) of the GLSL 1.10 spec: 1038f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * 1039f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * "It is an error to construct matrices from other matrices. This 1040f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * is reserved for future use." 1041f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke */ 1042f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if ((state->language_version <= 110) && (matrix_parameters > 0) 1043f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke && constructor_type->is_matrix()) { 1044f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke _mesa_glsl_error(& loc, state, "cannot construct `%s' from a " 1045f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke "matrix in GLSL 1.10", 1046f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke constructor_type->name); 1047f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return ir_call::get_error_instruction(ctx); 1048f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke } 1049f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke 1050f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* From page 50 (page 56 of the PDF) of the GLSL 1.50 spec: 1051f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * 1052f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * "If a matrix argument is given to a matrix constructor, it is 1053f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * an error to have any other arguments." 1054f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke */ 1055f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if ((matrix_parameters > 0) 1056f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke && ((matrix_parameters + nonmatrix_parameters) > 1) 1057f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke && constructor_type->is_matrix()) { 1058f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke _mesa_glsl_error(& loc, state, "for matrix `%s' constructor, " 1059f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke "matrix must be only parameter", 1060f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke constructor_type->name); 1061f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return ir_call::get_error_instruction(ctx); 1062f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke } 1063f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke 1064f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* From page 28 (page 34 of the PDF) of the GLSL 1.10 spec: 1065f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * 1066f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * "In these cases, there must be enough components provided in the 1067f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * arguments to provide an initializer for every component in the 1068f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * constructed value." 1069f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke */ 1070f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if ((components_used < type_components) && (components_used != 1)) { 1071f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke _mesa_glsl_error(& loc, state, "too few components to construct " 1072f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke "`%s'", 1073f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke constructor_type->name); 1074f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return ir_call::get_error_instruction(ctx); 1075f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke } 1076f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke 1077284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke /* Later, we cast each parameter to the same base type as the 1078284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke * constructor. Since there are no non-floating point matrices, we 1079284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke * need to break them up into a series of column vectors. 1080284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke */ 1081284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke if (constructor_type->base_type != GLSL_TYPE_FLOAT) { 1082284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke foreach_list_safe(n, &actual_parameters) { 1083284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke ir_rvalue *matrix = (ir_rvalue *) n; 1084284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1085284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke if (!matrix->type->is_matrix()) 1086284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke continue; 1087284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1088284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke /* Create a temporary containing the matrix. */ 10897e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_variable *var = new(ctx) ir_variable(matrix->type, "matrix_tmp", 10907e2aa91507a5883e33473e0a94215ee3985baad1Ian Romanick ir_var_temporary); 1091284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke instructions->push_tail(var); 1092284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke instructions->push_tail(new(ctx) ir_assignment(new(ctx) 1093284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke ir_dereference_variable(var), matrix, NULL)); 1094284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke var->constant_value = matrix->constant_expression_value(); 1095284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1096284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke /* Replace the matrix with dereferences of its columns. */ 1097284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke for (int i = 0; i < matrix->type->matrix_columns; i++) { 1098284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke matrix->insert_before(new (ctx) ir_dereference_array(var, 1099284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke new(ctx) ir_constant(i))); 1100284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke } 1101284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke matrix->remove(); 1102284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke } 1103284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke } 1104284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1105284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke bool all_parameters_are_constant = true; 1106284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1107284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke /* Type cast each parameter and, if possible, fold constants.*/ 1108284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke foreach_list_safe(n, &actual_parameters) { 1109284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke ir_rvalue *ir = (ir_rvalue *) n; 1110284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1111284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke const glsl_type *desired_type = 1112284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke glsl_type::get_instance(constructor_type->base_type, 1113284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke ir->type->vector_elements, 1114284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke ir->type->matrix_columns); 1115284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke ir_rvalue *result = convert_component(ir, desired_type); 1116284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1117284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke /* Attempt to convert the parameter to a constant valued expression. 1118284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke * After doing so, track whether or not all the parameters to the 1119284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke * constructor are trivially constant valued expressions. 1120284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke */ 1121284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke ir_rvalue *const constant = result->constant_expression_value(); 1122284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1123284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke if (constant != NULL) 1124284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke result = constant; 1125284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke else 1126284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke all_parameters_are_constant = false; 1127284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke 1128284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke if (result != ir) { 1129c7a18da69022d3f9b05c21ff2473e8ea390f77f1Kenneth Graunke ir->replace_with(result); 1130284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke } 1131284d821206d74fddb346cd0d892d2dcec463e2a5Kenneth Graunke } 1132f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke 1133f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* If all of the parameters are trivially constant, create a 1134f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * constant representing the complete collection of parameters. 1135f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke */ 1136f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if (all_parameters_are_constant) { 1137f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if (components_used >= type_components) 1138f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return new(ctx) ir_constant(constructor_type, 1139f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke & actual_parameters); 1140f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke 1141f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* The above case must handle all scalar constructors. 1142f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke */ 1143f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke assert(constructor_type->is_vector() 1144f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke || constructor_type->is_matrix()); 1145f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke 1146f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke /* Constructors with exactly one component are special for 1147f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * vectors and matrices. For vectors it causes all elements of 1148f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * the vector to be filled with the value. For matrices it 1149f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * causes the matrix to be filled with 0 and the diagonal to be 1150f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke * filled with the value. 1151f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke */ 1152f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke ir_constant_data data; 1153f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke ir_constant *const initializer = 1154f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke (ir_constant *) actual_parameters.head; 1155f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke if (constructor_type->is_matrix()) 1156f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke generate_constructor_matrix(constructor_type, initializer, 1157f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke &data); 1158f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke else 1159f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke generate_constructor_vector(constructor_type, initializer, 1160f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke &data); 1161f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke 1162f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return new(ctx) ir_constant(constructor_type, &data); 1163f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke } else if (constructor_type->is_scalar()) { 1164f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return dereference_component((ir_rvalue *) actual_parameters.head, 1165f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke 0); 1166f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke } else if (constructor_type->is_vector()) { 1167f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return emit_inline_vector_constructor(constructor_type, 1168f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke instructions, 1169f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke &actual_parameters, 1170f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke ctx); 1171f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke } else { 1172f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke assert(constructor_type->is_matrix()); 1173f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke return emit_inline_matrix_constructor(constructor_type, 1174f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke instructions, 1175f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke &actual_parameters, 1176f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke ctx); 1177f58bbd134e921b14f50ecd1e76b2943753ba194cKenneth Graunke } 1178548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick } else { 1179548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick const ast_expression *id = subexpressions[0]; 1180f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick YYLTYPE loc = id->get_location(); 1181c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick exec_list actual_parameters; 1182c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick 1183c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick process_parameters(instructions, &actual_parameters, &this->expressions, 1184c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick state); 1185548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick 1186ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick const glsl_type *const type = 1187ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick state->symbols->get_type(id->primary_expression.identifier); 1188ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 1189ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick if ((type != NULL) && type->is_record()) { 1190ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick ir_constant *constant = 1191ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick constant_record_constructor(type, &loc, &actual_parameters, state); 1192ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 1193ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick if (constant != NULL) 1194ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick return constant; 1195ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick } 1196ab92d0e53eab9030742e5e6d938a5739e549f16cIan Romanick 1197f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick return match_function_by_name(instructions, 1198f4749610ed800c2a93f0a21f94c0f8b4212c38deIan Romanick id->primary_expression.identifier, & loc, 1199c077131c0f4692b46afb06ab236288a24f2cfa14Ian Romanick &actual_parameters, state); 1200548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick } 1201548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick 1202e01193af325cbdde51b3219c85c58f19d5a87f1bCarl Worth return ir_call::get_error_instruction(ctx); 1203548fa293a37db8f01bd35d2dc878720e75886aa4Ian Romanick} 1204