1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/*
* Copyright (c) 2012 Rob Clark <robdclark@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef IR_H_
#define IR_H_
#include <stdint.h>
#include <stdbool.h>
#include "instr-a2xx.h"
/* low level intermediate representation of an adreno shader program */
struct ir_shader;
struct ir_shader * fd_asm_parse(const char *src);
struct ir_shader_info {
uint16_t sizedwords;
int8_t max_reg; /* highest GPR # used by shader */
uint8_t max_input_reg;
uint64_t regs_written;
};
struct ir_register {
enum {
IR_REG_CONST = 0x1,
IR_REG_EXPORT = 0x2,
IR_REG_NEGATE = 0x4,
IR_REG_ABS = 0x8,
} flags;
int num;
char *swizzle;
};
enum ir_pred {
IR_PRED_NONE = 0,
IR_PRED_EQ = 1,
IR_PRED_NE = 2,
};
struct ir_instruction {
struct ir_shader *shader;
enum {
IR_FETCH,
IR_ALU,
} instr_type;
enum ir_pred pred;
int sync;
unsigned regs_count;
struct ir_register *regs[5];
union {
/* FETCH specific: */
struct {
instr_fetch_opc_t opc;
unsigned const_idx;
/* maybe vertex fetch specific: */
unsigned const_idx_sel;
enum a2xx_sq_surfaceformat fmt;
bool is_signed : 1;
bool is_normalized : 1;
uint32_t stride;
uint32_t offset;
} fetch;
/* ALU specific: */
struct {
instr_vector_opc_t vector_opc;
instr_scalar_opc_t scalar_opc;
bool vector_clamp : 1;
bool scalar_clamp : 1;
} alu;
};
};
struct ir_cf {
struct ir_shader *shader;
instr_cf_opc_t cf_type;
union {
/* EXEC/EXEC_END specific: */
struct {
unsigned instrs_count;
struct ir_instruction *instrs[6];
uint32_t addr, cnt, sequence;
} exec;
/* ALLOC specific: */
struct {
instr_alloc_type_t type; /* SQ_POSITION or SQ_PARAMETER_PIXEL */
int size;
} alloc;
};
};
/* somewhat arbitrary limits.. */
#define MAX_ATTRIBUTES 32
#define MAX_CONSTS 32
#define MAX_SAMPLERS 32
#define MAX_UNIFORMS 32
#define MAX_VARYINGS 32
struct ir_attribute {
const char *name;
int rstart; /* first register */
int num; /* number of registers */
};
struct ir_const {
float val[4];
int cstart; /* first const register */
};
struct ir_sampler {
const char *name;
int idx;
};
struct ir_uniform {
const char *name;
int cstart; /* first const register */
int num; /* number of const registers */
};
struct ir_varying {
const char *name;
int rstart; /* first register */
int num; /* number of registers */
};
struct ir_shader {
unsigned cfs_count;
struct ir_cf *cfs[0x56];
uint32_t heap[100 * 4096];
unsigned heap_idx;
enum ir_pred pred; /* pred inherited by newly created instrs */
/* @ headers: */
uint32_t attributes_count;
struct ir_attribute *attributes[MAX_ATTRIBUTES];
uint32_t consts_count;
struct ir_const *consts[MAX_CONSTS];
uint32_t samplers_count;
struct ir_sampler *samplers[MAX_SAMPLERS];
uint32_t uniforms_count;
struct ir_uniform *uniforms[MAX_UNIFORMS];
uint32_t varyings_count;
struct ir_varying *varyings[MAX_VARYINGS];
};
struct ir_shader * ir_shader_create(void);
void ir_shader_destroy(struct ir_shader *shader);
void * ir_shader_assemble(struct ir_shader *shader,
struct ir_shader_info *info);
struct ir_attribute * ir_attribute_create(struct ir_shader *shader,
int rstart, int num, const char *name);
struct ir_const * ir_const_create(struct ir_shader *shader,
int cstart, float v0, float v1, float v2, float v3);
struct ir_sampler * ir_sampler_create(struct ir_shader *shader,
int idx, const char *name);
struct ir_uniform * ir_uniform_create(struct ir_shader *shader,
int cstart, int num, const char *name);
struct ir_varying * ir_varying_create(struct ir_shader *shader,
int rstart, int num, const char *name);
struct ir_cf * ir_cf_create(struct ir_shader *shader, instr_cf_opc_t cf_type);
struct ir_instruction * ir_instr_create(struct ir_cf *cf, int instr_type);
struct ir_register * ir_reg_create(struct ir_instruction *instr,
int num, const char *swizzle, int flags);
/* some helper fxns: */
static inline struct ir_cf *
ir_cf_create_alloc(struct ir_shader *shader, instr_alloc_type_t type, int size)
{
struct ir_cf *cf = ir_cf_create(shader, ALLOC);
if (!cf)
return cf;
cf->alloc.type = type;
cf->alloc.size = size;
return cf;
}
static inline struct ir_instruction *
ir_instr_create_alu(struct ir_cf *cf, instr_vector_opc_t vop, instr_scalar_opc_t sop)
{
struct ir_instruction *instr = ir_instr_create(cf, IR_ALU);
if (!instr)
return instr;
instr->alu.vector_opc = vop;
instr->alu.scalar_opc = sop;
return instr;
}
static inline struct ir_instruction *
ir_instr_create_vtx_fetch(struct ir_cf *cf, int ci, int cis,
enum a2xx_sq_surfaceformat fmt, bool is_signed, int stride)
{
struct ir_instruction *instr = instr = ir_instr_create(cf, IR_FETCH);
instr->fetch.opc = VTX_FETCH;
instr->fetch.const_idx = ci;
instr->fetch.const_idx_sel = cis;
instr->fetch.fmt = fmt;
instr->fetch.is_signed = is_signed;
instr->fetch.stride = stride;
return instr;
}
static inline struct ir_instruction *
ir_instr_create_tex_fetch(struct ir_cf *cf, int ci)
{
struct ir_instruction *instr = instr = ir_instr_create(cf, IR_FETCH);
instr->fetch.opc = TEX_FETCH;
instr->fetch.const_idx = ci;
return instr;
}
#endif /* IR_H_ */
|
