1 /*
2 Copyright (C) 2002 Rice1964
3 
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8 
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 GNU General Public License for more details.
13 
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
17 
18 */
19 
20 #ifndef _COMBINER_DEFS_H_
21 #define _COMBINER_DEFS_H_
22 
23 #include "typedefs.h"
24 
25 #define MUX_MASK            0x1F
26 #define MUX_MASK_WITH_ALPHA 0x5F
27 #define MUX_MASK_WITH_NEG   0x3F
28 #define MUX_MASK_WITH_COMP  0x9F
29 
30 // Combiner constants
31 enum
32 {
33     MUX_0              = 0,
34     MUX_1              = 1,
35     MUX_COMBINED       = 2,
36     MUX_TEXEL0         = 3,
37     MUX_TEXEL1         = 4,
38     MUX_PRIM           = 5,
39     MUX_SHADE          = 6,
40     MUX_ENV            = 7,
41     MUX_COMBALPHA      = 8,
42     MUX_T0_ALPHA       = 9,
43     MUX_T1_ALPHA       = 10,
44     MUX_PRIM_ALPHA     = 11,
45     MUX_SHADE_ALPHA    = 12,
46     MUX_ENV_ALPHA      = 13,
47     MUX_LODFRAC        = 14,
48     MUX_PRIMLODFRAC    = 15,
49     MUX_K5             = 16,
50     MUX_UNK,            //Use this if you want to factor to be set to 0
51 
52     // Don't change value of these three flags, then need to be within 1 uint8_t
53     MUX_NEG            = 0x20, //Support by NVidia register combiner
54     MUX_ALPHAREPLICATE = 0x40,
55     MUX_COMPLEMENT     = 0x80,
56     MUX_FORCE_0        = 0xFE,
57     MUX_ERR            = 0xFF
58 };
59 
60 
61 enum CombinerFormatType
62 {
63     CM_FMT_TYPE_NOT_USED,
64     CM_FMT_TYPE_D,                  // = A          can mapped to SEL(arg1)
65     CM_FMT_TYPE_A_MOD_C,            // = A*C        can mapped to MOD(arg1,arg2)
66     CM_FMT_TYPE_A_ADD_D,            // = A+D        can mapped to ADD(arg1,arg2)
67     CM_FMT_TYPE_A_SUB_B,            // = A-B        can mapped to SUB(arg1,arg2)
68     CM_FMT_TYPE_A_MOD_C_ADD_D,      // = A*C+D      can mapped to MULTIPLYADD(arg1,arg2,arg0)
69     CM_FMT_TYPE_A_LERP_B_C,         // = (A-B)*C+B  can mapped to LERP(arg1,arg2,arg0)
70                                     //              or mapped to BLENDALPHA(arg1,arg2) if C is
71                                     //              alpha channel or DIF, TEX, FAC, CUR
72     CM_FMT_TYPE_A_SUB_B_ADD_D,      // = A-B+C      can not map very well in 1 stage
73     CM_FMT_TYPE_A_SUB_B_MOD_C,      // = (A-B)*C    can not map very well in 1 stage
74     CM_FMT_TYPE_A_ADD_B_MOD_C,      // = (A+B)*C    can not map very well in 1 stage
75     CM_FMT_TYPE_A_B_C_D,            // = (A-B)*C+D  can not map very well in 1 stage
76     CM_FMT_TYPE_A_B_C_A,            // = (A-B)*C+D  can not map very well in 1 stage
77 
78     // Don't use these two types in default functions
79     CM_FMT_TYPE_AB_ADD_CD,          // = A*B+C*D    Use by nvidia video cards
80     CM_FMT_TYPE_AB_SUB_CD,          // = A*B-C*D    Use by nvidia video cards
81     CM_FMT_TYPE_AB_ADD_C,           // = A*B+C      Use by ATI video cards
82     CM_FMT_TYPE_AB_SUB_C,           // = A*B-C      Use by ATI video cards
83     CM_FMT_TYPE_NOT_CHECKED = 0xFF
84 };
85 
86 
87 typedef enum
88 {
89    ENABLE_BOTH,
90    DISABLE_ALPHA,
91    DISABLE_COLOR,
92    DISABLE_BOTH,
93    COLOR_ONE,
94    ALPHA_ONE
95 } BlendingFunc;
96 
97 
98 typedef enum
99 {
100    COLOR_CHANNEL,
101    ALPHA_CHANNEL
102 } CombineChannel;
103 
104 typedef struct
105 {
106     uint8_t a;
107     uint8_t b;
108     uint8_t c;
109     uint8_t d;
110 } N64CombinerType;
111 
112 #define CONST_FLAG4(a,b,c,d)    (a|(b<<8)|(c<<16)|(d<<24))  //(A-B)*C+D
113 #define CONST_MOD(a,b)          (a|(b<<16))             //A*B
114 #define CONST_SEL(a)            (a<<24)                 //=D
115 #define CONST_ADD(a,b)          (a|b<<24)               //A+D
116 #define CONST_SUB(a,b)          (a|b<<8)                //A-B
117 #define CONST_MULADD(a,b,c)     (a|b<<16|c<<24)         //A*C+D
118 
119 #define G_CCMUX_TEXEL1           2
120 #define G_ACMUX_TEXEL1           2
121 
122 #define NOTUSED MUX_0
123 
124 enum
125 {
126    TEX_0=0,
127    TEX_1=1
128 };
129 
130 typedef struct
131 {
132    uint32_t op;
133    uint32_t Arg1;
134    uint32_t Arg2;
135    uint32_t Arg0;
136 } StageOperate;
137 
138 #endif
139 
140 
141 
142