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@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
toy_tgsi_find_input(const struct toy_tgsi * tgsi,int index)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
toy_tgsi_find_system_value(const struct toy_tgsi * tgsi,int index)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 *
toy_tgsi_get_imm(const struct toy_tgsi * tgsi,unsigned index,enum toy_type * type)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