1 /* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 2012-2013 LunarG, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Chia-I Wu <olv (at) lunarg.com> 26 */ 27 28 #ifndef TOY_TGSI_H 29 #define TOY_TGSI_H 30 31 #include "pipe/p_state.h" 32 #include "pipe/p_shader_tokens.h" 33 #include "toy_compiler.h" 34 35 struct tgsi_token; 36 struct tgsi_full_instruction; 37 struct util_hash_table; 38 39 typedef void (*toy_tgsi_translate)(struct toy_compiler *tc, 40 const struct tgsi_full_instruction *tgsi_inst, 41 struct toy_dst *dst, 42 struct toy_src *src); 43 44 struct toy_tgsi { 45 struct toy_compiler *tc; 46 bool aos; 47 const toy_tgsi_translate *translate_table; 48 49 struct util_hash_table *reg_mapping; 50 51 struct { 52 bool vs_prohibit_ucps; 53 int fs_coord_origin; 54 int fs_coord_pixel_center; 55 bool fs_color0_writes_all_cbufs; 56 int fs_depth_layout; 57 int gs_input_prim; 58 int gs_output_prim; 59 int gs_max_output_vertices; 60 } props; 61 62 struct { 63 enum toy_type *types; 64 uint32_t (*buf)[4]; 65 int cur, size; 66 } imm_data; 67 68 struct { 69 int index:16; 70 unsigned usage_mask:4; /* TGSI_WRITEMASK_x */ 71 unsigned semantic_name:8; /* TGSI_SEMANTIC_x */ 72 unsigned semantic_index:8; 73 unsigned interp:4; /* TGSI_INTERPOLATE_x */ 74 unsigned centroid:1; 75 } inputs[PIPE_MAX_SHADER_INPUTS]; 76 int num_inputs; 77 78 struct { 79 int index:16; 80 unsigned undefined_mask:4; 81 unsigned usage_mask:4; /* TGSI_WRITEMASK_x */ 82 unsigned semantic_name:8; /* TGSI_SEMANTIC_x */ 83 unsigned semantic_index:8; 84 } outputs[PIPE_MAX_SHADER_OUTPUTS]; 85 int num_outputs; 86 87 struct { 88 int index:16; 89 unsigned semantic_name:8; /* TGSI_SEMANTIC_x */ 90 unsigned semantic_index:8; 91 } system_values[8]; 92 int num_system_values; 93 94 int const_count; 95 bool const_indirect; 96 97 bool uses_kill; 98 }; 99 100 /** 101 * Find the slot of the TGSI input. 102 */ 103 static inline int 104 toy_tgsi_find_input(const struct toy_tgsi *tgsi, int index) 105 { 106 int slot; 107 108 for (slot = 0; slot < tgsi->num_inputs; slot++) { 109 if (tgsi->inputs[slot].index == index) 110 return slot; 111 } 112 113 return -1; 114 } 115 116 /** 117 * Find the slot of the TGSI system value. 118 */ 119 static inline int 120 toy_tgsi_find_system_value(const struct toy_tgsi *tgsi, int index) 121 { 122 int slot; 123 124 for (slot = 0; slot < tgsi->num_system_values; slot++) { 125 if (tgsi->system_values[slot].index == index) 126 return slot; 127 } 128 129 return -1; 130 } 131 132 /** 133 * Return the immediate data of the TGSI immediate. 134 */ 135 static inline const uint32_t * 136 toy_tgsi_get_imm(const struct toy_tgsi *tgsi, unsigned index, 137 enum toy_type *type) 138 { 139 const uint32_t *imm; 140 141 if (index >= tgsi->imm_data.cur) 142 return NULL; 143 144 imm = tgsi->imm_data.buf[index]; 145 if (type) 146 *type = tgsi->imm_data.types[index]; 147 148 return imm; 149 } 150 151 void 152 toy_compiler_translate_tgsi(struct toy_compiler *tc, 153 const struct tgsi_token *tokens, bool aos, 154 struct toy_tgsi *tgsi); 155 156 void 157 toy_tgsi_cleanup(struct toy_tgsi *tgsi); 158 159 int 160 toy_tgsi_get_vrf(const struct toy_tgsi *tgsi, 161 enum tgsi_file_type file, int dimension, int index); 162 163 void 164 toy_tgsi_dump(const struct toy_tgsi *tgsi); 165 166 #endif /* TOY_TGSI_H */ 167