xref: /aosp_15_r20/external/mesa3d/src/mesa/program/prog_instruction.c (revision 6104692788411f58d303aa86923a9ff6ecaded22)
1*61046927SAndroid Build Coastguard Worker /*
2*61046927SAndroid Build Coastguard Worker  * Mesa 3-D graphics library
3*61046927SAndroid Build Coastguard Worker  *
4*61046927SAndroid Build Coastguard Worker  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
5*61046927SAndroid Build Coastguard Worker  * Copyright (C) 1999-2009  VMware, Inc.  All Rights Reserved.
6*61046927SAndroid Build Coastguard Worker  *
7*61046927SAndroid Build Coastguard Worker  * Permission is hereby granted, free of charge, to any person obtaining a
8*61046927SAndroid Build Coastguard Worker  * copy of this software and associated documentation files (the "Software"),
9*61046927SAndroid Build Coastguard Worker  * to deal in the Software without restriction, including without limitation
10*61046927SAndroid Build Coastguard Worker  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11*61046927SAndroid Build Coastguard Worker  * and/or sell copies of the Software, and to permit persons to whom the
12*61046927SAndroid Build Coastguard Worker  * Software is furnished to do so, subject to the following conditions:
13*61046927SAndroid Build Coastguard Worker  *
14*61046927SAndroid Build Coastguard Worker  * The above copyright notice and this permission notice shall be included
15*61046927SAndroid Build Coastguard Worker  * in all copies or substantial portions of the Software.
16*61046927SAndroid Build Coastguard Worker  *
17*61046927SAndroid Build Coastguard Worker  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18*61046927SAndroid Build Coastguard Worker  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19*61046927SAndroid Build Coastguard Worker  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20*61046927SAndroid Build Coastguard Worker  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21*61046927SAndroid Build Coastguard Worker  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22*61046927SAndroid Build Coastguard Worker  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23*61046927SAndroid Build Coastguard Worker  * OTHER DEALINGS IN THE SOFTWARE.
24*61046927SAndroid Build Coastguard Worker  */
25*61046927SAndroid Build Coastguard Worker 
26*61046927SAndroid Build Coastguard Worker 
27*61046927SAndroid Build Coastguard Worker #include <stdio.h>
28*61046927SAndroid Build Coastguard Worker #include <assert.h>
29*61046927SAndroid Build Coastguard Worker 
30*61046927SAndroid Build Coastguard Worker #include "util/glheader.h"
31*61046927SAndroid Build Coastguard Worker #include "prog_instruction.h"
32*61046927SAndroid Build Coastguard Worker #include "prog_parameter.h"
33*61046927SAndroid Build Coastguard Worker 
34*61046927SAndroid Build Coastguard Worker 
35*61046927SAndroid Build Coastguard Worker /**
36*61046927SAndroid Build Coastguard Worker  * Initialize program instruction fields to defaults.
37*61046927SAndroid Build Coastguard Worker  * \param inst  first instruction to initialize
38*61046927SAndroid Build Coastguard Worker  * \param count  number of instructions to initialize
39*61046927SAndroid Build Coastguard Worker  */
40*61046927SAndroid Build Coastguard Worker void
_mesa_init_instructions(struct prog_instruction * inst,GLuint count)41*61046927SAndroid Build Coastguard Worker _mesa_init_instructions(struct prog_instruction *inst, GLuint count)
42*61046927SAndroid Build Coastguard Worker {
43*61046927SAndroid Build Coastguard Worker    GLuint i;
44*61046927SAndroid Build Coastguard Worker 
45*61046927SAndroid Build Coastguard Worker    memset(inst, 0, count * sizeof(struct prog_instruction));
46*61046927SAndroid Build Coastguard Worker 
47*61046927SAndroid Build Coastguard Worker    for (i = 0; i < count; i++) {
48*61046927SAndroid Build Coastguard Worker       inst[i].SrcReg[0].File = PROGRAM_UNDEFINED;
49*61046927SAndroid Build Coastguard Worker       inst[i].SrcReg[0].Swizzle = SWIZZLE_NOOP;
50*61046927SAndroid Build Coastguard Worker       inst[i].SrcReg[1].File = PROGRAM_UNDEFINED;
51*61046927SAndroid Build Coastguard Worker       inst[i].SrcReg[1].Swizzle = SWIZZLE_NOOP;
52*61046927SAndroid Build Coastguard Worker       inst[i].SrcReg[2].File = PROGRAM_UNDEFINED;
53*61046927SAndroid Build Coastguard Worker       inst[i].SrcReg[2].Swizzle = SWIZZLE_NOOP;
54*61046927SAndroid Build Coastguard Worker 
55*61046927SAndroid Build Coastguard Worker       inst[i].DstReg.File = PROGRAM_UNDEFINED;
56*61046927SAndroid Build Coastguard Worker       inst[i].DstReg.WriteMask = WRITEMASK_XYZW;
57*61046927SAndroid Build Coastguard Worker 
58*61046927SAndroid Build Coastguard Worker       inst[i].Saturate = GL_FALSE;
59*61046927SAndroid Build Coastguard Worker    }
60*61046927SAndroid Build Coastguard Worker }
61*61046927SAndroid Build Coastguard Worker 
62*61046927SAndroid Build Coastguard Worker 
63*61046927SAndroid Build Coastguard Worker /**
64*61046927SAndroid Build Coastguard Worker  * Basic info about each instruction
65*61046927SAndroid Build Coastguard Worker  */
66*61046927SAndroid Build Coastguard Worker struct instruction_info
67*61046927SAndroid Build Coastguard Worker {
68*61046927SAndroid Build Coastguard Worker    enum prog_opcode Opcode;
69*61046927SAndroid Build Coastguard Worker    const char *Name;
70*61046927SAndroid Build Coastguard Worker    GLuint NumSrcRegs;
71*61046927SAndroid Build Coastguard Worker    GLuint NumDstRegs;
72*61046927SAndroid Build Coastguard Worker };
73*61046927SAndroid Build Coastguard Worker 
74*61046927SAndroid Build Coastguard Worker /**
75*61046927SAndroid Build Coastguard Worker  * Instruction info
76*61046927SAndroid Build Coastguard Worker  * \note Opcode should equal array index!
77*61046927SAndroid Build Coastguard Worker  */
78*61046927SAndroid Build Coastguard Worker static const struct instruction_info InstInfo[MAX_OPCODE] = {
79*61046927SAndroid Build Coastguard Worker    { OPCODE_NOP,    "NOP",     0, 0 },
80*61046927SAndroid Build Coastguard Worker    { OPCODE_ABS,    "ABS",     1, 1 },
81*61046927SAndroid Build Coastguard Worker    { OPCODE_ADD,    "ADD",     2, 1 },
82*61046927SAndroid Build Coastguard Worker    { OPCODE_ARL,    "ARL",     1, 1 },
83*61046927SAndroid Build Coastguard Worker    { OPCODE_CMP,    "CMP",     3, 1 },
84*61046927SAndroid Build Coastguard Worker    { OPCODE_COS,    "COS",     1, 1 },
85*61046927SAndroid Build Coastguard Worker    { OPCODE_DDX,    "DDX",     1, 1 },
86*61046927SAndroid Build Coastguard Worker    { OPCODE_DDY,    "DDY",     1, 1 },
87*61046927SAndroid Build Coastguard Worker    { OPCODE_DP2,    "DP2",     2, 1 },
88*61046927SAndroid Build Coastguard Worker    { OPCODE_DP3,    "DP3",     2, 1 },
89*61046927SAndroid Build Coastguard Worker    { OPCODE_DP4,    "DP4",     2, 1 },
90*61046927SAndroid Build Coastguard Worker    { OPCODE_DPH,    "DPH",     2, 1 },
91*61046927SAndroid Build Coastguard Worker    { OPCODE_DST,    "DST",     2, 1 },
92*61046927SAndroid Build Coastguard Worker    { OPCODE_END,    "END",     0, 0 },
93*61046927SAndroid Build Coastguard Worker    { OPCODE_EX2,    "EX2",     1, 1 },
94*61046927SAndroid Build Coastguard Worker    { OPCODE_EXP,    "EXP",     1, 1 },
95*61046927SAndroid Build Coastguard Worker    { OPCODE_FLR,    "FLR",     1, 1 },
96*61046927SAndroid Build Coastguard Worker    { OPCODE_FRC,    "FRC",     1, 1 },
97*61046927SAndroid Build Coastguard Worker    { OPCODE_KIL,    "KIL",     1, 0 },
98*61046927SAndroid Build Coastguard Worker    { OPCODE_LG2,    "LG2",     1, 1 },
99*61046927SAndroid Build Coastguard Worker    { OPCODE_LIT,    "LIT",     1, 1 },
100*61046927SAndroid Build Coastguard Worker    { OPCODE_LOG,    "LOG",     1, 1 },
101*61046927SAndroid Build Coastguard Worker    { OPCODE_LRP,    "LRP",     3, 1 },
102*61046927SAndroid Build Coastguard Worker    { OPCODE_MAD,    "MAD",     3, 1 },
103*61046927SAndroid Build Coastguard Worker    { OPCODE_MAX,    "MAX",     2, 1 },
104*61046927SAndroid Build Coastguard Worker    { OPCODE_MIN,    "MIN",     2, 1 },
105*61046927SAndroid Build Coastguard Worker    { OPCODE_MOV,    "MOV",     1, 1 },
106*61046927SAndroid Build Coastguard Worker    { OPCODE_MUL,    "MUL",     2, 1 },
107*61046927SAndroid Build Coastguard Worker    { OPCODE_POW,    "POW",     2, 1 },
108*61046927SAndroid Build Coastguard Worker    { OPCODE_RCP,    "RCP",     1, 1 },
109*61046927SAndroid Build Coastguard Worker    { OPCODE_RSQ,    "RSQ",     1, 1 },
110*61046927SAndroid Build Coastguard Worker    { OPCODE_SCS,    "SCS",     1, 1 },
111*61046927SAndroid Build Coastguard Worker    { OPCODE_SGE,    "SGE",     2, 1 },
112*61046927SAndroid Build Coastguard Worker    { OPCODE_SIN,    "SIN",     1, 1 },
113*61046927SAndroid Build Coastguard Worker    { OPCODE_SLT,    "SLT",     2, 1 },
114*61046927SAndroid Build Coastguard Worker    { OPCODE_SSG,    "SSG",     1, 1 },
115*61046927SAndroid Build Coastguard Worker    { OPCODE_SUB,    "SUB",     2, 1 },
116*61046927SAndroid Build Coastguard Worker    { OPCODE_SWZ,    "SWZ",     1, 1 },
117*61046927SAndroid Build Coastguard Worker    { OPCODE_TEX,    "TEX",     1, 1 },
118*61046927SAndroid Build Coastguard Worker    { OPCODE_TXB,    "TXB",     1, 1 },
119*61046927SAndroid Build Coastguard Worker    { OPCODE_TXD,    "TXD",     3, 1 },
120*61046927SAndroid Build Coastguard Worker    { OPCODE_TXL,    "TXL",     1, 1 },
121*61046927SAndroid Build Coastguard Worker    { OPCODE_TXP,    "TXP",     1, 1 },
122*61046927SAndroid Build Coastguard Worker    { OPCODE_XPD,    "XPD",     2, 1 }
123*61046927SAndroid Build Coastguard Worker };
124*61046927SAndroid Build Coastguard Worker 
125*61046927SAndroid Build Coastguard Worker 
126*61046927SAndroid Build Coastguard Worker /**
127*61046927SAndroid Build Coastguard Worker  * Return the number of src registers for the given instruction/opcode.
128*61046927SAndroid Build Coastguard Worker  */
129*61046927SAndroid Build Coastguard Worker GLuint
_mesa_num_inst_src_regs(enum prog_opcode opcode)130*61046927SAndroid Build Coastguard Worker _mesa_num_inst_src_regs(enum prog_opcode opcode)
131*61046927SAndroid Build Coastguard Worker {
132*61046927SAndroid Build Coastguard Worker    assert(opcode < MAX_OPCODE);
133*61046927SAndroid Build Coastguard Worker    assert(opcode == InstInfo[opcode].Opcode);
134*61046927SAndroid Build Coastguard Worker    assert(OPCODE_XPD == InstInfo[OPCODE_XPD].Opcode);
135*61046927SAndroid Build Coastguard Worker    return InstInfo[opcode].NumSrcRegs;
136*61046927SAndroid Build Coastguard Worker }
137*61046927SAndroid Build Coastguard Worker 
138*61046927SAndroid Build Coastguard Worker 
139*61046927SAndroid Build Coastguard Worker /**
140*61046927SAndroid Build Coastguard Worker  * Return the number of dst registers for the given instruction/opcode.
141*61046927SAndroid Build Coastguard Worker  */
142*61046927SAndroid Build Coastguard Worker GLuint
_mesa_num_inst_dst_regs(enum prog_opcode opcode)143*61046927SAndroid Build Coastguard Worker _mesa_num_inst_dst_regs(enum prog_opcode opcode)
144*61046927SAndroid Build Coastguard Worker {
145*61046927SAndroid Build Coastguard Worker    assert(opcode < MAX_OPCODE);
146*61046927SAndroid Build Coastguard Worker    assert(opcode == InstInfo[opcode].Opcode);
147*61046927SAndroid Build Coastguard Worker    assert(OPCODE_XPD == InstInfo[OPCODE_XPD].Opcode);
148*61046927SAndroid Build Coastguard Worker    return InstInfo[opcode].NumDstRegs;
149*61046927SAndroid Build Coastguard Worker }
150*61046927SAndroid Build Coastguard Worker 
151*61046927SAndroid Build Coastguard Worker 
152*61046927SAndroid Build Coastguard Worker /**
153*61046927SAndroid Build Coastguard Worker  * Return string name for given program opcode.
154*61046927SAndroid Build Coastguard Worker  */
155*61046927SAndroid Build Coastguard Worker const char *
_mesa_opcode_string(enum prog_opcode opcode)156*61046927SAndroid Build Coastguard Worker _mesa_opcode_string(enum prog_opcode opcode)
157*61046927SAndroid Build Coastguard Worker {
158*61046927SAndroid Build Coastguard Worker    if (opcode < MAX_OPCODE)
159*61046927SAndroid Build Coastguard Worker       return InstInfo[opcode].Name;
160*61046927SAndroid Build Coastguard Worker    else {
161*61046927SAndroid Build Coastguard Worker       static char s[20];
162*61046927SAndroid Build Coastguard Worker       snprintf(s, sizeof(s), "OP%u", opcode);
163*61046927SAndroid Build Coastguard Worker       return s;
164*61046927SAndroid Build Coastguard Worker    }
165*61046927SAndroid Build Coastguard Worker }
166*61046927SAndroid Build Coastguard Worker 
167