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 output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; /**< TGSI_SEMANTIC_x */
55 ubyte output_semantic_index[PIPE_MAX_SHADER_OUTPUTS];
56 ubyte output_usagemask[PIPE_MAX_SHADER_OUTPUTS];
57 ubyte output_streams[PIPE_MAX_SHADER_OUTPUTS];
58
59 ubyte num_system_values;
60 ubyte system_value_semantic_name[PIPE_MAX_SHADER_INPUTS];
61
62 ubyte processor;
63
64 uint file_mask[TGSI_FILE_COUNT]; /**< bitmask of declared registers */
65 uint file_count[TGSI_FILE_COUNT]; /**< number of declared registers */
66 int file_max[TGSI_FILE_COUNT]; /**< highest index of declared registers */
67 int const_file_max[PIPE_MAX_CONSTANT_BUFFERS];
68 unsigned const_buffers_declared; /**< bitmask of declared const buffers */
69 unsigned samplers_declared; /**< bitmask of declared samplers */
70 ubyte sampler_targets[PIPE_MAX_SHADER_SAMPLER_VIEWS]; /**< TGSI_TEXTURE_x values */
71 ubyte sampler_type[PIPE_MAX_SHADER_SAMPLER_VIEWS]; /**< TGSI_RETURN_TYPE_x */
72 ubyte num_stream_output_components[4];
73
74 ubyte input_array_first[PIPE_MAX_SHADER_INPUTS];
75 ubyte input_array_last[PIPE_MAX_SHADER_INPUTS];
76 ubyte output_array_first[PIPE_MAX_SHADER_OUTPUTS];
77 ubyte output_array_last[PIPE_MAX_SHADER_OUTPUTS];
78 unsigned array_max[TGSI_FILE_COUNT]; /**< highest index array per register file */
79
80 uint immediate_count; /**< number of immediates declared */
81 uint num_instructions;
82 uint num_memory_instructions; /**< sampler, buffer, and image instructions */
83
84 uint opcode_count[TGSI_OPCODE_LAST]; /**< opcode histogram */
85
86 /**
87 * If a tessellation control shader reads outputs, this describes which ones.
88 */
89 boolean reads_pervertex_outputs;
90 boolean reads_perpatch_outputs;
91 boolean reads_tessfactor_outputs;
92
93 ubyte colors_read; /**< which color components are read by the FS */
94 ubyte colors_written;
95 boolean reads_position; /**< does fragment shader read position? */
96 boolean reads_z; /**< does fragment shader read depth? */
97 boolean reads_samplemask; /**< does fragment shader read sample mask? */
98 boolean reads_tess_factors; /**< If TES reads TESSINNER or TESSOUTER */
99 boolean writes_z; /**< does fragment shader write Z value? */
100 boolean writes_stencil; /**< does fragment shader write stencil value? */
101 boolean writes_samplemask; /**< does fragment shader write sample mask? */
102 boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
103 boolean uses_kill; /**< KILL or KILL_IF instruction used? */
104 boolean uses_persp_center;
105 boolean uses_persp_centroid;
106 boolean uses_persp_sample;
107 boolean uses_linear_center;
108 boolean uses_linear_centroid;
109 boolean uses_linear_sample;
110 boolean uses_persp_opcode_interp_centroid;
111 boolean uses_persp_opcode_interp_offset;
112 boolean uses_persp_opcode_interp_sample;
113 boolean uses_linear_opcode_interp_centroid;
114 boolean uses_linear_opcode_interp_offset;
115 boolean uses_linear_opcode_interp_sample;
116 boolean uses_instanceid;
117 boolean uses_vertexid;
118 boolean uses_vertexid_nobase;
119 boolean uses_basevertex;
120 boolean uses_drawid;
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 uses_subgroup_info;
129 boolean writes_position;
130 boolean writes_psize;
131 boolean writes_clipvertex;
132 boolean writes_primid;
133 boolean writes_viewport_index;
134 boolean writes_layer;
135 boolean writes_memory; /**< contains stores or atomics to buffers or images */
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 boolean uses_fbfetch;
141 unsigned clipdist_writemask;
142 unsigned culldist_writemask;
143 unsigned num_written_culldistance;
144 unsigned num_written_clipdistance;
145
146 unsigned images_declared; /**< bitmask of declared images */
147 unsigned msaa_images_declared; /**< bitmask of declared MSAA images */
148
149 /**
150 * Bitmask indicating which declared image is a buffer.
151 */
152 unsigned images_buffers;
153 unsigned images_load; /**< bitmask of images using loads */
154 unsigned images_store; /**< bitmask of images using stores */
155 unsigned images_atomic; /**< bitmask of images using atomics */
156 unsigned shader_buffers_declared; /**< bitmask of declared shader buffers */
157 unsigned shader_buffers_load; /**< bitmask of shader buffers using loads */
158 unsigned shader_buffers_store; /**< bitmask of shader buffers using stores */
159 unsigned shader_buffers_atomic; /**< bitmask of shader buffers using atomics */
160 bool uses_bindless_buffer_load;
161 bool uses_bindless_buffer_store;
162 bool uses_bindless_buffer_atomic;
163 bool uses_bindless_image_load;
164 bool uses_bindless_image_store;
165 bool uses_bindless_image_atomic;
166
167 /**
168 * Bitmask indicating which register files are accessed with
169 * indirect addressing. The bits are (1 << TGSI_FILE_x), etc.
170 */
171 unsigned indirect_files;
172 /**
173 * Bitmask indicating which register files are read / written with
174 * indirect addressing. The bits are (1 << TGSI_FILE_x).
175 */
176 unsigned indirect_files_read;
177 unsigned indirect_files_written;
178 unsigned dim_indirect_files; /**< shader resource indexing */
179 unsigned const_buffers_indirect; /**< const buffers using indirect addressing */
180
181 unsigned properties[TGSI_PROPERTY_COUNT]; /* index with TGSI_PROPERTY_ */
182
183 /**
184 * Max nesting limit of loops/if's
185 */
186 unsigned max_depth;
187 };
188
189 struct tgsi_array_info
190 {
191 /** Whether an array with this ID was declared. */
192 bool declared;
193
194 /** The OR of all writemasks used to write to this array. */
195 ubyte writemask;
196
197 /** The range with which the array was declared. */
198 struct tgsi_declaration_range range;
199 };
200
201 struct tgsi_tessctrl_info
202 {
203 /** Whether all codepaths write tess factors in all invocations. */
204 bool tessfactors_are_def_in_all_invocs;
205 };
206
207 extern void
208 tgsi_scan_shader(const struct tgsi_token *tokens,
209 struct tgsi_shader_info *info);
210
211 void
212 tgsi_scan_arrays(const struct tgsi_token *tokens,
213 unsigned file,
214 unsigned max_array_id,
215 struct tgsi_array_info *arrays);
216
217 void
218 tgsi_scan_tess_ctrl(const struct tgsi_token *tokens,
219 const struct tgsi_shader_info *info,
220 struct tgsi_tessctrl_info *out);
221
222 static inline bool
tgsi_is_bindless_image_file(unsigned file)223 tgsi_is_bindless_image_file(unsigned file)
224 {
225 return file != TGSI_FILE_IMAGE &&
226 file != TGSI_FILE_MEMORY &&
227 file != TGSI_FILE_BUFFER &&
228 file != TGSI_FILE_CONSTBUF &&
229 file != TGSI_FILE_HW_ATOMIC;
230 }
231
232 #ifdef __cplusplus
233 } // extern "C"
234 #endif
235
236 #endif /* TGSI_SCAN_H */
237