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 r300_fragment_program_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
{
55 rc_register_file File
:3;
56 unsigned int Index
:RC_REGISTER_INDEX_BITS
;
59 struct radeon_pair_instruction_rgb
{
61 unsigned int DestIndex
:RC_REGISTER_INDEX_BITS
;
62 unsigned int WriteMask
:3;
63 unsigned int OutputWriteMask
:3;
64 unsigned int Saturate
:1;
66 struct radeon_pair_instruction_source Src
[3];
69 unsigned int Source
:2;
70 unsigned int Swizzle
:9;
72 unsigned int Negate
:1;
76 struct radeon_pair_instruction_alpha
{
78 unsigned int DestIndex
:RC_REGISTER_INDEX_BITS
;
79 unsigned int WriteMask
:1;
80 unsigned int OutputWriteMask
:1;
81 unsigned int DepthWriteMask
:1;
82 unsigned int Saturate
:1;
84 struct radeon_pair_instruction_source Src
[3];
87 unsigned int Source
:2;
88 unsigned int Swizzle
:3;
90 unsigned int Negate
:1;
94 struct rc_pair_instruction
{
95 struct radeon_pair_instruction_rgb RGB
;
96 struct radeon_pair_instruction_alpha Alpha
;
98 rc_write_aluresult WriteALUResult
:2;
99 rc_compare_func ALUResultCompare
:3;
104 * General helper functions for dealing with the paired instruction format.
107 int rc_pair_alloc_source(struct rc_pair_instruction
*pair
,
108 unsigned int rgb
, unsigned int alpha
,
109 rc_register_file file
, unsigned int index
);
114 * Compiler passes that operate with the paired format.
117 struct radeon_pair_handler
;
119 void rc_pair_translate(struct r300_fragment_program_compiler
*c
);
120 void rc_pair_schedule(struct r300_fragment_program_compiler
*c
);
121 void rc_pair_regalloc(struct r300_fragment_program_compiler
*c
, unsigned maxtemps
);
124 #endif /* __RADEON_PROGRAM_PAIR_H_ */