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 output_array_first[PIPE_MAX_SHADER_OUTPUTS];
76 unsigned array_max[TGSI_FILE_COUNT]; /**< highest index array per register file */
77
78 uint immediate_count; /**< number of immediates declared */
79 uint num_instructions;
80 uint num_memory_instructions; /**< sampler, buffer, and image instructions */
81
82 uint opcode_count[TGSI_OPCODE_LAST]; /**< opcode histogram */
83
84 /**
85 * If a tessellation control shader reads outputs, this describes which ones.
86 */
87 boolean reads_pervertex_outputs;
88 boolean reads_perpatch_outputs;
89 boolean reads_tessfactor_outputs;
90
91 ubyte colors_read; /**< which color components are read by the FS */
92 ubyte colors_written;
93 boolean reads_position; /**< does fragment shader read position? */
94 boolean reads_z; /**< does fragment shader read depth? */
95 boolean reads_samplemask; /**< does fragment shader read sample mask? */
96 boolean reads_tess_factors; /**< If TES reads TESSINNER or TESSOUTER */
97 boolean writes_z; /**< does fragment shader write Z value? */
98 boolean writes_stencil; /**< does fragment shader write stencil value? */
99 boolean writes_samplemask; /**< does fragment shader write sample mask? */
100 boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
101 boolean uses_kill; /**< KILL or KILL_IF instruction used? */
102 boolean uses_persp_center;
103 boolean uses_persp_centroid;
104 boolean uses_persp_sample;
105 boolean uses_linear_center;
106 boolean uses_linear_centroid;
107 boolean uses_linear_sample;
108 boolean uses_persp_opcode_interp_centroid;
109 boolean uses_persp_opcode_interp_offset;
110 boolean uses_persp_opcode_interp_sample;
111 boolean uses_linear_opcode_interp_centroid;
112 boolean uses_linear_opcode_interp_offset;
113 boolean uses_linear_opcode_interp_sample;
114 boolean uses_instanceid;
115 boolean uses_vertexid;
116 boolean uses_vertexid_nobase;
117 boolean uses_basevertex;
118 boolean uses_drawid;
119 boolean uses_primid;
120 boolean uses_frontface;
121 boolean uses_invocationid;
122 boolean uses_thread_id[3];
123 boolean uses_block_id[3];
124 boolean uses_block_size;
125 boolean uses_grid_size;
126 boolean uses_subgroup_info;
127 boolean writes_position;
128 boolean writes_psize;
129 boolean writes_clipvertex;
130 boolean writes_primid;
131 boolean writes_viewport_index;
132 boolean writes_layer;
133 boolean writes_memory; /**< contains stores or atomics to buffers or images */
134 boolean uses_doubles; /**< uses any of the double instructions */
135 boolean uses_derivatives;
136 boolean uses_bindless_samplers;
137 boolean uses_bindless_images;
138 boolean uses_fbfetch;
139 unsigned clipdist_writemask;
140 unsigned culldist_writemask;
141 unsigned num_written_culldistance;
142 unsigned num_written_clipdistance;
143
144 unsigned images_declared; /**< bitmask of declared images */
145 unsigned msaa_images_declared; /**< bitmask of declared MSAA images */
146
147 /**
148 * Bitmask indicating which declared image is a buffer.
149 */
150 unsigned images_buffers;
151 unsigned images_load; /**< bitmask of images using loads */
152 unsigned images_store; /**< bitmask of images using stores */
153 unsigned images_atomic; /**< bitmask of images using atomics */
154 unsigned shader_buffers_declared; /**< bitmask of declared shader buffers */
155 unsigned shader_buffers_load; /**< bitmask of shader buffers using loads */
156 unsigned shader_buffers_store; /**< bitmask of shader buffers using stores */
157 unsigned shader_buffers_atomic; /**< bitmask of shader buffers using atomics */
158 bool uses_bindless_buffer_load;
159 bool uses_bindless_buffer_store;
160 bool uses_bindless_buffer_atomic;
161 bool uses_bindless_image_load;
162 bool uses_bindless_image_store;
163 bool uses_bindless_image_atomic;
164
165 unsigned hw_atomic_declared; /**< bitmask of declared atomic_counter */
166 /**
167 * Bitmask indicating which register files are accessed with
168 * indirect addressing. The bits are (1 << TGSI_FILE_x), etc.
169 */
170 unsigned indirect_files;
171 /**
172 * Bitmask indicating which register files are read / written with
173 * indirect addressing. The bits are (1 << TGSI_FILE_x).
174 */
175 unsigned indirect_files_read;
176 unsigned indirect_files_written;
177 unsigned dim_indirect_files; /**< shader resource indexing */
178 unsigned const_buffers_indirect; /**< const buffers using indirect addressing */
179
180 unsigned properties[TGSI_PROPERTY_COUNT]; /* index with TGSI_PROPERTY_ */
181
182 /**
183 * Max nesting limit of loops/if's
184 */
185 unsigned max_depth;
186 };
187
188 struct tgsi_array_info
189 {
190 /** Whether an array with this ID was declared. */
191 bool declared;
192
193 /** The OR of all writemasks used to write to this array. */
194 ubyte writemask;
195
196 /** The range with which the array was declared. */
197 struct tgsi_declaration_range range;
198 };
199
200 struct tgsi_tessctrl_info
201 {
202 /** Whether all codepaths write tess factors in all invocations. */
203 bool tessfactors_are_def_in_all_invocs;
204 };
205
206 extern void
207 tgsi_scan_shader(const struct tgsi_token *tokens,
208 struct tgsi_shader_info *info);
209
210 void
211 tgsi_scan_arrays(const struct tgsi_token *tokens,
212 unsigned file,
213 unsigned max_array_id,
214 struct tgsi_array_info *arrays);
215
216 void
217 tgsi_scan_tess_ctrl(const struct tgsi_token *tokens,
218 const struct tgsi_shader_info *info,
219 struct tgsi_tessctrl_info *out);
220
221 static inline bool
tgsi_is_bindless_image_file(unsigned file)222 tgsi_is_bindless_image_file(unsigned file)
223 {
224 return file != TGSI_FILE_IMAGE &&
225 file != TGSI_FILE_MEMORY &&
226 file != TGSI_FILE_BUFFER &&
227 file != TGSI_FILE_CONSTBUF &&
228 file != TGSI_FILE_HW_ATOMIC;
229 }
230
231 #ifdef __cplusplus
232 } // extern "C"
233 #endif
234
235 #endif /* TGSI_SCAN_H */
236