1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright (C) 2008 VMware, Inc. All Rights Reserved. 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright © 2010 Intel Corporation 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the "Software"), 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to deal in the Software without restriction, including without limitation 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and/or sell copies of the Software, and to permit persons to whom the 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software is furnished to do so, subject to the following conditions: 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice (including the next 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * paragraph) shall be included in all copies or substantial portions of the 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software. 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * DEALINGS IN THE SOFTWARE. 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "ir.h" 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "glsl_types.h" 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "ir_visitor.h" 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "../glsl/program.h" 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "program/hash_table.h" 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "ir_uniform.h" 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgextern "C" { 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/compiler.h" 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/mtypes.h" 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "program/prog_parameter.h" 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgclass get_sampler_name : public ir_hierarchical_visitor 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgpublic: 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org get_sampler_name(ir_dereference *last, 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct gl_shader_program *shader_program) 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->mem_ctx = ralloc_context(NULL); 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->shader_program = shader_program; 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->name = NULL; 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->offset = 0; 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->last = last; 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ~get_sampler_name() 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ralloc_free(this->mem_ctx); 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org virtual ir_visitor_status visit(ir_dereference_variable *ir) 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->name = ir->var->name; 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return visit_continue; 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org virtual ir_visitor_status visit_leave(ir_dereference_record *ir) 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->name = ralloc_asprintf(mem_ctx, "%s.%s", name, ir->field); 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return visit_continue; 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org virtual ir_visitor_status visit_leave(ir_dereference_array *ir) 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_constant *index = ir->array_index->as_constant(); 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org int i; 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (index) { 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org i = index->value.i[0]; 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } else { 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* GLSL 1.10 and 1.20 allowed variable sampler array indices, 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * while GLSL 1.30 requires that the array indices be 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * constant integer expressions. We don't expect any driver 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to actually work with a really variable array index, so 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * all that would work would be an unrolled loop counter that ends 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * up being constant above. 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ralloc_strcat(&shader_program->InfoLog, 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org "warning: Variable sampler array index unsupported.\n" 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org "This feature of the language was removed in GLSL 1.20 " 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org "and is unlikely to be supported for 1.10 in Mesa.\n"); 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org i = 0; 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (ir != last) { 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org this->name = ralloc_asprintf(mem_ctx, "%s[%d]", name, i); 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } else { 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org offset = i; 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return visit_continue; 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct gl_shader_program *shader_program; 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const char *name; 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org void *mem_ctx; 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org int offset; 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ir_dereference *last; 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgextern "C" { 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgint 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_get_sampler_uniform_value(class ir_dereference *sampler, 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct gl_shader_program *shader_program, 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct gl_program *prog) 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org get_sampler_name getname(sampler, shader_program); 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org sampler->accept(&getname); 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned location; 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!shader_program->UniformHash->get(location, getname.name)) { 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org linker_error(shader_program, 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org "failed to find sampler named %s.\n", getname.name); 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return 0; 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return shader_program->UniformStorage[location].sampler + getname.offset; 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 125