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
|
/*
* Copyright (C) 2008 Nicolai Haehnle.
*
* All Rights Reserved.
*
* 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 COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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 __RADEON_PROGRAM_H_
#define __RADEON_PROGRAM_H_
#include <stdint.h>
#include <string.h>
#include "radeon_opcodes.h"
#include "radeon_code.h"
#include "radeon_program_constants.h"
#include "radeon_program_pair.h"
struct radeon_compiler;
struct rc_src_register {
unsigned int File:4;
/** Negative values may be used for relative addressing. */
signed int Index:(RC_REGISTER_INDEX_BITS+1);
unsigned int RelAddr:1;
unsigned int Swizzle:12;
/** Take the component-wise absolute value */
unsigned int Abs:1;
/** Post-Abs negation. */
unsigned int Negate:4;
};
struct rc_dst_register {
unsigned int File:3;
unsigned int Index:RC_REGISTER_INDEX_BITS;
unsigned int WriteMask:4;
};
struct rc_presub_instruction {
rc_presubtract_op Opcode;
struct rc_src_register SrcReg[2];
};
/**
* Instructions are maintained by the compiler in a doubly linked list
* of these structures.
*
* This instruction format is intended to be expanded for hardware-specific
* trickery. At different stages of compilation, a different set of
* instruction types may be valid.
*/
struct rc_sub_instruction {
struct rc_src_register SrcReg[3];
struct rc_dst_register DstReg;
/**
* Opcode of this instruction, according to \ref rc_opcode enums.
*/
unsigned int Opcode:8;
/**
* Saturate each value of the result to the range [0,1] or [-1,1],
* according to \ref rc_saturate_mode enums.
*/
unsigned int SaturateMode:2;
/**
* Writing to the special register RC_SPECIAL_ALU_RESULT
*/
/*@{*/
unsigned int WriteALUResult:2;
unsigned int ALUResultCompare:3;
/*@}*/
/**
* \name Extra fields for TEX, TXB, TXD, TXL, TXP instructions.
*/
/*@{*/
/** Source texture unit. */
unsigned int TexSrcUnit:5;
/** Source texture target, one of the \ref rc_texture_target enums */
unsigned int TexSrcTarget:3;
/** True if tex instruction should do shadow comparison */
unsigned int TexShadow:1;
/**R500 Only. How to swizzle the result of a TEX lookup*/
unsigned int TexSwizzle:12;
/*@}*/
/** This holds information about the presubtract operation used by
* this instruction. */
struct rc_presub_instruction PreSub;
};
typedef enum {
RC_INSTRUCTION_NORMAL = 0,
RC_INSTRUCTION_PAIR
} rc_instruction_type;
struct rc_instruction {
struct rc_instruction * Prev;
struct rc_instruction * Next;
rc_instruction_type Type;
union {
struct rc_sub_instruction I;
struct rc_pair_instruction P;
} U;
/**
* Warning: IPs are not stable. If you want to use them,
* you need to recompute them at the beginning of each pass
* using \ref rc_recompute_ips
*/
unsigned int IP;
};
struct rc_program {
/**
* Instructions.Next points to the first instruction,
* Instructions.Prev points to the last instruction.
*/
struct rc_instruction Instructions;
/* Long term, we should probably remove InputsRead & OutputsWritten,
* since updating dependent state can be fragile, and they aren't
* actually used very often. */
uint32_t InputsRead;
uint32_t OutputsWritten;
uint32_t ShadowSamplers; /**< Texture units used for shadow sampling. */
struct rc_constant_list Constants;
};
/**
* A transformation that can be passed to \ref rc_local_transform.
*
* The function will be called once for each instruction.
* It has to either emit the appropriate transformed code for the instruction
* and return true, or return false if it doesn't understand the
* instruction.
*
* The function gets passed the userData as last parameter.
*/
struct radeon_program_transformation {
int (*function)(
struct radeon_compiler*,
struct rc_instruction*,
void*);
void *userData;
};
void rc_local_transform(
struct radeon_compiler *c,
void *user);
void rc_get_used_temporaries(
struct radeon_compiler * c,
unsigned char * used,
unsigned int used_length);
int rc_find_free_temporary_list(
struct radeon_compiler * c,
unsigned char * used,
unsigned int used_length,
unsigned int mask);
unsigned int rc_find_free_temporary(struct radeon_compiler * c);
struct rc_instruction *rc_alloc_instruction(struct radeon_compiler * c);
struct rc_instruction *rc_insert_new_instruction(struct radeon_compiler * c, struct rc_instruction * after);
void rc_insert_instruction(struct rc_instruction * after, struct rc_instruction * inst);
void rc_remove_instruction(struct rc_instruction * inst);
unsigned int rc_recompute_ips(struct radeon_compiler * c);
void rc_print_program(const struct rc_program *prog);
rc_swizzle rc_mask_to_swizzle(unsigned int mask);
#endif
|
