1 /* 2 * Copyright 2015-2017 ARM Limited 3 * SPDX-License-Identifier: Apache-2.0 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 #ifndef SPIRV_CROSS_EXTERNAL_INTERFACE_H 19 #define SPIRV_CROSS_EXTERNAL_INTERFACE_H 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 #include <stddef.h> 26 27 typedef struct spirv_cross_shader spirv_cross_shader_t; 28 29 struct spirv_cross_interface 30 { 31 spirv_cross_shader_t *(*construct)(void); 32 void (*destruct)(spirv_cross_shader_t *thiz); 33 void (*invoke)(spirv_cross_shader_t *thiz); 34 }; 35 36 void spirv_cross_set_stage_input(spirv_cross_shader_t *thiz, unsigned location, void *data, size_t size); 37 38 void spirv_cross_set_stage_output(spirv_cross_shader_t *thiz, unsigned location, void *data, size_t size); 39 40 void spirv_cross_set_push_constant(spirv_cross_shader_t *thiz, void *data, size_t size); 41 42 void spirv_cross_set_uniform_constant(spirv_cross_shader_t *thiz, unsigned location, void *data, size_t size); 43 44 void spirv_cross_set_resource(spirv_cross_shader_t *thiz, unsigned set, unsigned binding, void **data, size_t size); 45 46 const struct spirv_cross_interface *spirv_cross_get_interface(void); 47 48 typedef enum spirv_cross_builtin { 49 SPIRV_CROSS_BUILTIN_POSITION = 0, 50 SPIRV_CROSS_BUILTIN_FRAG_COORD = 1, 51 SPIRV_CROSS_BUILTIN_WORK_GROUP_ID = 2, 52 SPIRV_CROSS_BUILTIN_NUM_WORK_GROUPS = 3, 53 SPIRV_CROSS_NUM_BUILTINS 54 } spirv_cross_builtin; 55 56 void spirv_cross_set_builtin(spirv_cross_shader_t *thiz, spirv_cross_builtin builtin, void *data, size_t size); 57 58 #define SPIRV_CROSS_NUM_DESCRIPTOR_SETS 4 59 #define SPIRV_CROSS_NUM_DESCRIPTOR_BINDINGS 16 60 #define SPIRV_CROSS_NUM_STAGE_INPUTS 16 61 #define SPIRV_CROSS_NUM_STAGE_OUTPUTS 16 62 #define SPIRV_CROSS_NUM_UNIFORM_CONSTANTS 32 63 64 enum spirv_cross_format 65 { 66 SPIRV_CROSS_FORMAT_R8_UNORM = 0, 67 SPIRV_CROSS_FORMAT_R8G8_UNORM = 1, 68 SPIRV_CROSS_FORMAT_R8G8B8_UNORM = 2, 69 SPIRV_CROSS_FORMAT_R8G8B8A8_UNORM = 3, 70 71 SPIRV_CROSS_NUM_FORMATS 72 }; 73 74 enum spirv_cross_wrap 75 { 76 SPIRV_CROSS_WRAP_CLAMP_TO_EDGE = 0, 77 SPIRV_CROSS_WRAP_REPEAT = 1, 78 79 SPIRV_CROSS_NUM_WRAP 80 }; 81 82 enum spirv_cross_filter 83 { 84 SPIRV_CROSS_FILTER_NEAREST = 0, 85 SPIRV_CROSS_FILTER_LINEAR = 1, 86 87 SPIRV_CROSS_NUM_FILTER 88 }; 89 90 enum spirv_cross_mipfilter 91 { 92 SPIRV_CROSS_MIPFILTER_BASE = 0, 93 SPIRV_CROSS_MIPFILTER_NEAREST = 1, 94 SPIRV_CROSS_MIPFILTER_LINEAR = 2, 95 96 SPIRV_CROSS_NUM_MIPFILTER 97 }; 98 99 struct spirv_cross_miplevel 100 { 101 const void *data; 102 unsigned width, height; 103 size_t stride; 104 }; 105 106 struct spirv_cross_sampler_info 107 { 108 const struct spirv_cross_miplevel *mipmaps; 109 unsigned num_mipmaps; 110 111 enum spirv_cross_format format; 112 enum spirv_cross_wrap wrap_s; 113 enum spirv_cross_wrap wrap_t; 114 enum spirv_cross_filter min_filter; 115 enum spirv_cross_filter mag_filter; 116 enum spirv_cross_mipfilter mip_filter; 117 }; 118 119 typedef struct spirv_cross_sampler_2d spirv_cross_sampler_2d_t; 120 spirv_cross_sampler_2d_t *spirv_cross_create_sampler_2d(const struct spirv_cross_sampler_info *info); 121 void spirv_cross_destroy_sampler_2d(spirv_cross_sampler_2d_t *samp); 122 123 #ifdef __cplusplus 124 } 125 #endif 126 127 #endif 128