1 /************************************************************************** 2 * 3 * Copyright 2008 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 #ifndef TGSI_SCAN_H 29 #define TGSI_SCAN_H 30 31 32 #include "pipe/p_compiler.h" 33 #include "pipe/p_state.h" 34 #include "pipe/p_shader_tokens.h" 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 /** 41 * Shader summary info 42 */ 43 struct tgsi_shader_info 44 { 45 uint num_tokens; 46 47 ubyte num_inputs; 48 ubyte num_outputs; 49 ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; /**< TGSI_SEMANTIC_x */ 50 ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS]; 51 ubyte input_interpolate[PIPE_MAX_SHADER_INPUTS]; 52 ubyte input_interpolate_loc[PIPE_MAX_SHADER_INPUTS]; 53 ubyte input_usage_mask[PIPE_MAX_SHADER_INPUTS]; 54 ubyte input_cylindrical_wrap[PIPE_MAX_SHADER_INPUTS]; 55 ubyte output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; /**< TGSI_SEMANTIC_x */ 56 ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS]; 57 ubyte output_usagemask[PIPE_MAX_SHADER_OUTPUTS]; 58 ubyte output_streams[PIPE_MAX_SHADER_OUTPUTS]; 59 60 ubyte num_system_values; 61 ubyte system_value_semantic_name[PIPE_MAX_SHADER_INPUTS]; 62 63 ubyte processor; 64 65 uint file_mask[TGSI_FILE_COUNT]; /**< bitmask of declared registers */ 66 uint file_count[TGSI_FILE_COUNT]; /**< number of declared registers */ 67 int file_max[TGSI_FILE_COUNT]; /**< highest index of declared registers */ 68 int const_file_max[PIPE_MAX_CONSTANT_BUFFERS]; 69 unsigned const_buffers_declared; /**< bitmask of declared const buffers */ 70 unsigned samplers_declared; /**< bitmask of declared samplers */ 71 ubyte sampler_targets[PIPE_MAX_SHADER_SAMPLER_VIEWS]; /**< TGSI_TEXTURE_x values */ 72 ubyte sampler_type[PIPE_MAX_SHADER_SAMPLER_VIEWS]; /**< TGSI_RETURN_TYPE_x */ 73 ubyte num_stream_output_components[4]; 74 75 ubyte input_array_first[PIPE_MAX_SHADER_INPUTS]; 76 ubyte input_array_last[PIPE_MAX_SHADER_INPUTS]; 77 ubyte output_array_first[PIPE_MAX_SHADER_OUTPUTS]; 78 ubyte output_array_last[PIPE_MAX_SHADER_OUTPUTS]; 79 unsigned array_max[TGSI_FILE_COUNT]; /**< highest index array per register file */ 80 81 uint immediate_count; /**< number of immediates declared */ 82 uint num_instructions; 83 uint num_memory_instructions; /**< sampler, buffer, and image instructions */ 84 85 uint opcode_count[TGSI_OPCODE_LAST]; /**< opcode histogram */ 86 87 /** 88 * If a tessellation control shader reads outputs, this describes which ones. 89 */ 90 boolean reads_pervertex_outputs; 91 boolean reads_perpatch_outputs; 92 boolean reads_tessfactor_outputs; 93 94 ubyte colors_read; /**< which color components are read by the FS */ 95 ubyte colors_written; 96 boolean reads_position; /**< does fragment shader read position? */ 97 boolean reads_z; /**< does fragment shader read depth? */ 98 boolean reads_samplemask; /**< does fragment shader read sample mask? */ 99 boolean reads_tess_factors; /**< If TES reads TESSINNER or TESSOUTER */ 100 boolean writes_z; /**< does fragment shader write Z value? */ 101 boolean writes_stencil; /**< does fragment shader write stencil value? */ 102 boolean writes_samplemask; /**< does fragment shader write sample mask? */ 103 boolean writes_edgeflag; /**< vertex shader outputs edgeflag */ 104 boolean uses_kill; /**< KILL or KILL_IF instruction used? */ 105 boolean uses_persp_center; 106 boolean uses_persp_centroid; 107 boolean uses_persp_sample; 108 boolean uses_linear_center; 109 boolean uses_linear_centroid; 110 boolean uses_linear_sample; 111 boolean uses_persp_opcode_interp_centroid; 112 boolean uses_persp_opcode_interp_offset; 113 boolean uses_persp_opcode_interp_sample; 114 boolean uses_linear_opcode_interp_centroid; 115 boolean uses_linear_opcode_interp_offset; 116 boolean uses_linear_opcode_interp_sample; 117 boolean uses_instanceid; 118 boolean uses_vertexid; 119 boolean uses_vertexid_nobase; 120 boolean uses_basevertex; 121 boolean uses_primid; 122 boolean uses_frontface; 123 boolean uses_invocationid; 124 boolean uses_thread_id[3]; 125 boolean uses_block_id[3]; 126 boolean uses_block_size; 127 boolean uses_grid_size; 128 boolean writes_position; 129 boolean writes_psize; 130 boolean writes_clipvertex; 131 boolean writes_primid; 132 boolean writes_viewport_index; 133 boolean writes_layer; 134 boolean writes_memory; /**< contains stores or atomics to buffers or images */ 135 boolean is_msaa_sampler[PIPE_MAX_SAMPLERS]; 136 boolean uses_doubles; /**< uses any of the double instructions */ 137 boolean uses_derivatives; 138 boolean uses_bindless_samplers; 139 boolean uses_bindless_images; 140 unsigned clipdist_writemask; 141 unsigned culldist_writemask; 142 unsigned num_written_culldistance; 143 unsigned num_written_clipdistance; 144 145 unsigned images_declared; /**< bitmask of declared images */ 146 /** 147 * Bitmask indicating which declared image is a buffer. 148 */ 149 unsigned images_buffers; 150 unsigned images_load; /**< bitmask of images using loads */ 151 unsigned images_store; /**< bitmask of images using stores */ 152 unsigned images_atomic; /**< bitmask of images using atomics */ 153 unsigned shader_buffers_declared; /**< bitmask of declared shader buffers */ 154 unsigned shader_buffers_load; /**< bitmask of shader buffers using loads */ 155 unsigned shader_buffers_store; /**< bitmask of shader buffers using stores */ 156 unsigned shader_buffers_atomic; /**< bitmask of shader buffers using atomics */ 157 /** 158 * Bitmask indicating which register files are accessed with 159 * indirect addressing. The bits are (1 << TGSI_FILE_x), etc. 160 */ 161 unsigned indirect_files; 162 /** 163 * Bitmask indicating which register files are read / written with 164 * indirect addressing. The bits are (1 << TGSI_FILE_x). 165 */ 166 unsigned indirect_files_read; 167 unsigned indirect_files_written; 168 unsigned dim_indirect_files; /**< shader resource indexing */ 169 unsigned const_buffers_indirect; /**< const buffers using indirect addressing */ 170 171 unsigned properties[TGSI_PROPERTY_COUNT]; /* index with TGSI_PROPERTY_ */ 172 173 /** 174 * Max nesting limit of loops/if's 175 */ 176 unsigned max_depth; 177 }; 178 179 struct tgsi_array_info 180 { 181 /** Whether an array with this ID was declared. */ 182 bool declared; 183 184 /** The OR of all writemasks used to write to this array. */ 185 ubyte writemask; 186 187 /** The range with which the array was declared. */ 188 struct tgsi_declaration_range range; 189 }; 190 191 struct tgsi_tessctrl_info 192 { 193 /** Whether all codepaths write tess factors in all invocations. */ 194 bool tessfactors_are_def_in_all_invocs; 195 }; 196 197 extern void 198 tgsi_scan_shader(const struct tgsi_token *tokens, 199 struct tgsi_shader_info *info); 200 201 void 202 tgsi_scan_arrays(const struct tgsi_token *tokens, 203 unsigned file, 204 unsigned max_array_id, 205 struct tgsi_array_info *arrays); 206 207 void 208 tgsi_scan_tess_ctrl(const struct tgsi_token *tokens, 209 const struct tgsi_shader_info *info, 210 struct tgsi_tessctrl_info *out); 211 212 static inline bool 213 tgsi_is_bindless_image_file(unsigned file) 214 { 215 return file != TGSI_FILE_IMAGE && 216 file != TGSI_FILE_MEMORY && 217 file != TGSI_FILE_BUFFER; 218 } 219 220 #ifdef __cplusplus 221 } // extern "C" 222 #endif 223 224 #endif /* TGSI_SCAN_H */ 225