1 /* 2 * Copyright © 2018 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 #ifndef GLSL_LINKER_UTIL_H 25 #define GLSL_LINKER_UTIL_H 26 27 #include "util/bitset.h" 28 29 struct gl_context; 30 struct gl_shader_program; 31 struct gl_uniform_storage; 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /** 38 * Sometimes there are empty slots left over in UniformRemapTable after we 39 * allocate slots to explicit locations. This struct represents a single 40 * continouous block of empty slots in UniformRemapTable. 41 */ 42 struct empty_uniform_block { 43 struct exec_node link; 44 /* The start location of the block */ 45 unsigned start; 46 /* The number of slots in the block */ 47 unsigned slots; 48 }; 49 50 /** 51 * Describes an access of an array element or an access of the whole array 52 */ 53 struct array_deref_range { 54 /** 55 * Index that was accessed. 56 * 57 * All valid array indices are less than the size of the array. If index 58 * is equal to the size of the array, this means the entire array has been 59 * accessed (e.g., due to use of a non-constant index). 60 */ 61 unsigned index; 62 63 /** Size of the array. Used for offset calculations. */ 64 unsigned size; 65 }; 66 67 void 68 linker_error(struct gl_shader_program *prog, const char *fmt, ...); 69 70 void 71 linker_warning(struct gl_shader_program *prog, const char *fmt, ...); 72 73 bool 74 link_util_should_add_buffer_variable(struct gl_shader_program *prog, 75 struct gl_uniform_storage *uniform, 76 int top_level_array_base_offset, 77 int top_level_array_size_in_bytes, 78 int second_element_offset, 79 int block_index); 80 81 bool 82 link_util_add_program_resource(struct gl_shader_program *prog, 83 struct set *resource_set, 84 GLenum type, const void *data, uint8_t stages); 85 86 int 87 link_util_find_empty_block(struct gl_shader_program *prog, 88 struct gl_uniform_storage *uniform); 89 90 void 91 link_util_update_empty_uniform_locations(struct gl_shader_program *prog); 92 93 void 94 link_util_check_subroutine_resources(struct gl_shader_program *prog); 95 96 void 97 link_util_check_uniform_resources(struct gl_context *ctx, 98 struct gl_shader_program *prog); 99 100 void 101 link_util_calculate_subroutine_compat(struct gl_shader_program *prog); 102 103 void 104 link_util_mark_array_elements_referenced(const struct array_deref_range *dr, 105 unsigned count, unsigned array_depth, 106 BITSET_WORD *bits); 107 108 #ifdef __cplusplus 109 } 110 #endif 111 112 #endif /* GLSL_LINKER_UTIL_H */ 113