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
53 struct radeon_pair_instruction_source
{
56 unsigned int Index
:RC_REGISTER_INDEX_BITS
;
59 struct radeon_pair_instruction_rgb
{
60 unsigned int Opcode
:8;
61 unsigned int DestIndex
:RC_REGISTER_INDEX_BITS
;
62 unsigned int WriteMask
:3;
63 unsigned int Target
:2;
64 unsigned int OutputWriteMask
:3;
65 unsigned int Saturate
:1;
67 struct radeon_pair_instruction_source Src
[3];
70 unsigned int Source
:2;
71 unsigned int Swizzle
:9;
73 unsigned int Negate
:1;
77 struct radeon_pair_instruction_alpha
{
78 unsigned int Opcode
:8;
79 unsigned int DestIndex
:RC_REGISTER_INDEX_BITS
;
80 unsigned int WriteMask
:1;
81 unsigned int Target
:2;
82 unsigned int OutputWriteMask
:1;
83 unsigned int DepthWriteMask
:1;
84 unsigned int Saturate
:1;
86 struct radeon_pair_instruction_source Src
[3];
89 unsigned int Source
:2;
90 unsigned int Swizzle
:3;
92 unsigned int Negate
:1;
96 struct rc_pair_instruction
{
97 struct radeon_pair_instruction_rgb RGB
;
98 struct radeon_pair_instruction_alpha Alpha
;
100 unsigned int WriteALUResult
:2;
101 unsigned int ALUResultCompare
:3;
106 * General helper functions for dealing with the paired instruction format.
109 int rc_pair_alloc_source(struct rc_pair_instruction
*pair
,
110 unsigned int rgb
, unsigned int alpha
,
111 rc_register_file file
, unsigned int index
);
116 * Compiler passes that operate with the paired format.
119 struct radeon_pair_handler
;
121 void rc_pair_translate(struct radeon_compiler
*cc
, void *user
);
122 void rc_pair_schedule(struct radeon_compiler
*cc
, void *user
);
123 void rc_pair_regalloc(struct radeon_compiler
*cc
, void *user
);
126 #endif /* __RADEON_PROGRAM_PAIR_H_ */