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1 /**************************************************************************
2  *
3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * 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, sub license, 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:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27 
28 #ifndef TGSI_INFO_H
29 #define TGSI_INFO_H
30 
31 #include "pipe/p_compiler.h"
32 #include "pipe/p_shader_tokens.h"
33 #include "util/u_format.h"
34 
35 #if defined __cplusplus
36 extern "C" {
37 #endif
38 
39 /* This enum describes how an opcode calculates its result. */
40 enum tgsi_output_mode {
41    /** The opcode produces no result. */
42    TGSI_OUTPUT_NONE            = 0,
43 
44    /** When this opcode writes to a channel of the destination register,
45     *  it takes as arguments values from the same channel of the source
46     *  register(s).
47     *
48     *  Example: TGSI_OPCODE_ADD
49     */
50    TGSI_OUTPUT_COMPONENTWISE   = 1,
51 
52    /** This opcode writes the same value to all enabled channels of the
53     * destination register.
54     *
55     *  Example: TGSI_OPCODE_RSQ
56     */
57    TGSI_OUTPUT_REPLICATE       = 2,
58 
59    /** The operation performed by this opcode is dependent on which channel
60     *  of the destination register is being written.
61     *
62     *  Example: TGSI_OPCODE_LOG
63     */
64    TGSI_OUTPUT_CHAN_DEPENDENT  = 3,
65 
66    /**
67     * Example: TGSI_OPCODE_TEX
68     */
69    TGSI_OUTPUT_OTHER           = 4
70 };
71 
72 struct tgsi_opcode_info
73 {
74    unsigned num_dst:3;
75    unsigned num_src:3;
76    unsigned is_tex:1;
77    unsigned is_branch:1;
78    int pre_dedent:2;
79    int post_indent:2;
80    enum tgsi_output_mode output_mode:3;
81    const char *mnemonic;
82    uint opcode;
83 };
84 
85 const struct tgsi_opcode_info *
86 tgsi_get_opcode_info( uint opcode );
87 
88 const char *
89 tgsi_get_opcode_name( uint opcode );
90 
91 const char *
92 tgsi_get_processor_name( uint processor );
93 
94 enum tgsi_opcode_type {
95    TGSI_TYPE_UNTYPED, /* for MOV */
96    TGSI_TYPE_VOID,
97    TGSI_TYPE_UNSIGNED,
98    TGSI_TYPE_SIGNED,
99    TGSI_TYPE_FLOAT,
100    TGSI_TYPE_DOUBLE
101 };
102 
103 enum tgsi_opcode_type
104 tgsi_opcode_infer_src_type( uint opcode );
105 
106 enum tgsi_opcode_type
107 tgsi_opcode_infer_dst_type( uint opcode );
108 
109 #if defined __cplusplus
110 }
111 #endif
112 
113 #endif /* TGSI_INFO_H */
114