2 * Copyright (C) 2008 Nicolai Haehnle.
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a 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, sublicense, 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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial
16 * portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #ifndef __RADEON_PROGRAM_PAIR_H_
29 #define __RADEON_PROGRAM_PAIR_H_
31 #include "radeon_code.h"
32 #include "radeon_opcodes.h"
33 #include "radeon_program_constants.h"
35 struct radeon_compiler
;
40 * Represents a paired ALU instruction, as found in R300 and R500
43 * Note that this representation is taking some liberties as far
44 * as register files are concerned, to allow separate register
47 * Also note that there are some subtleties in that the semantics
48 * of certain opcodes are implicitly changed in this representation;
49 * see \ref rc_pair_translate
52 /* For rgb and alpha instructions when arg[n].Source = RC_PAIR_PRESUB_SRC, then
53 * the presubtract value will be used, and
54 * {RGB,Alpha}.Src[RC_PAIR_PRESUB_SRC].File will be set to RC_FILE_PRESUB.
56 #define RC_PAIR_PRESUB_SRC 3
58 struct rc_pair_instruction_source
{
61 unsigned int Index
:RC_REGISTER_INDEX_BITS
;
64 struct rc_pair_instruction_arg
{
65 unsigned int Source
:2;
66 unsigned int Swizzle
:12;
68 unsigned int Negate
:1;
71 struct rc_pair_sub_instruction
{
72 unsigned int Opcode
:8;
73 unsigned int DestIndex
:RC_REGISTER_INDEX_BITS
;
74 unsigned int WriteMask
:4;
75 unsigned int Target
:2;
76 unsigned int OutputWriteMask
:3;
77 unsigned int DepthWriteMask
:1;
78 unsigned int Saturate
:1;
81 struct rc_pair_instruction_source Src
[4];
82 struct rc_pair_instruction_arg Arg
[3];
85 struct rc_pair_instruction
{
86 struct rc_pair_sub_instruction RGB
;
87 struct rc_pair_sub_instruction Alpha
;
89 unsigned int WriteALUResult
:2;
90 unsigned int ALUResultCompare
:3;
92 unsigned int SemWait
:1;
95 typedef void (*rc_pair_foreach_src_fn
)
96 (void *, struct rc_pair_instruction_source
*);
99 * General helper functions for dealing with the paired instruction format.
102 int rc_pair_alloc_source(struct rc_pair_instruction
*pair
,
103 unsigned int rgb
, unsigned int alpha
,
104 rc_register_file file
, unsigned int index
);
106 void rc_pair_foreach_source_that_alpha_reads(
107 struct rc_pair_instruction
* pair
,
109 rc_pair_foreach_src_fn cb
);
111 void rc_pair_foreach_source_that_rgb_reads(
112 struct rc_pair_instruction
* pair
,
114 rc_pair_foreach_src_fn cb
);
116 struct rc_pair_instruction_source
* rc_pair_get_src(
117 struct rc_pair_instruction
* pair_inst
,
118 struct rc_pair_instruction_arg
* arg
);
120 int rc_pair_get_src_index(
121 struct rc_pair_instruction
* pair_inst
,
122 struct rc_pair_instruction_source
* src
);
127 * Compiler passes that operate with the paired format.
130 struct radeon_pair_handler
;
132 void rc_pair_translate(struct radeon_compiler
*cc
, void *user
);
133 void rc_pair_schedule(struct radeon_compiler
*cc
, void *user
);
134 void rc_pair_regalloc(struct radeon_compiler
*cc
, void *user
);
135 void rc_pair_regalloc_inputs_only(struct radeon_compiler
*cc
, void *user
);
136 void rc_pair_remove_dead_sources(struct radeon_compiler
*c
, void *user
);
139 #endif /* __RADEON_PROGRAM_PAIR_H_ */