2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 #include "prog_instruction.h"
33 * Initialize program instruction fields to defaults.
34 * \param inst first instruction to initialize
35 * \param count number of instructions to initialize
38 _mesa_init_instructions(struct prog_instruction
*inst
, GLuint count
)
42 _mesa_bzero(inst
, count
* sizeof(struct prog_instruction
));
44 for (i
= 0; i
< count
; i
++) {
45 inst
[i
].SrcReg
[0].File
= PROGRAM_UNDEFINED
;
46 inst
[i
].SrcReg
[0].Swizzle
= SWIZZLE_NOOP
;
47 inst
[i
].SrcReg
[1].File
= PROGRAM_UNDEFINED
;
48 inst
[i
].SrcReg
[1].Swizzle
= SWIZZLE_NOOP
;
49 inst
[i
].SrcReg
[2].File
= PROGRAM_UNDEFINED
;
50 inst
[i
].SrcReg
[2].Swizzle
= SWIZZLE_NOOP
;
52 inst
[i
].DstReg
.File
= PROGRAM_UNDEFINED
;
53 inst
[i
].DstReg
.WriteMask
= WRITEMASK_XYZW
;
54 inst
[i
].DstReg
.CondMask
= COND_TR
;
55 inst
[i
].DstReg
.CondSwizzle
= SWIZZLE_NOOP
;
57 inst
[i
].SaturateMode
= SATURATE_OFF
;
58 inst
[i
].Precision
= FLOAT32
;
64 * Allocate an array of program instructions.
65 * \param numInst number of instructions
66 * \return pointer to instruction memory
68 struct prog_instruction
*
69 _mesa_alloc_instructions(GLuint numInst
)
71 return (struct prog_instruction
*)
72 _mesa_calloc(numInst
* sizeof(struct prog_instruction
));
77 * Reallocate memory storing an array of program instructions.
78 * This is used when we need to append additional instructions onto an
80 * \param oldInst pointer to first of old/src instructions
81 * \param numOldInst number of instructions at <oldInst>
82 * \param numNewInst desired size of new instruction array.
83 * \return pointer to start of new instruction array.
85 struct prog_instruction
*
86 _mesa_realloc_instructions(struct prog_instruction
*oldInst
,
87 GLuint numOldInst
, GLuint numNewInst
)
89 struct prog_instruction
*newInst
;
91 newInst
= (struct prog_instruction
*)
92 _mesa_realloc(oldInst
,
93 numOldInst
* sizeof(struct prog_instruction
),
94 numNewInst
* sizeof(struct prog_instruction
));
101 * Copy an array of program instructions.
102 * \param dest pointer to destination.
103 * \param src pointer to source.
104 * \param n number of instructions to copy.
105 * \return pointer to destination.
107 struct prog_instruction
*
108 _mesa_copy_instructions(struct prog_instruction
*dest
,
109 const struct prog_instruction
*src
, GLuint n
)
111 return _mesa_memcpy(dest
, src
, n
* sizeof(struct prog_instruction
));
116 * Basic info about each instruction
118 struct instruction_info
120 gl_inst_opcode Opcode
;
127 * \note Opcode should equal array index!
129 static const struct instruction_info InstInfo
[MAX_OPCODE
] = {
130 { OPCODE_NOP
, "NOP", 0 },
131 { OPCODE_ABS
, "ABS", 1 },
132 { OPCODE_ADD
, "ADD", 2 },
133 { OPCODE_ARA
, "ARA", 1 },
134 { OPCODE_ARL
, "ARL", 1 },
135 { OPCODE_ARL_NV
, "ARL", 1 },
136 { OPCODE_ARR
, "ARL", 1 },
137 { OPCODE_BGNLOOP
,"BGNLOOP", 0 },
138 { OPCODE_BGNSUB
, "BGNSUB", 0 },
139 { OPCODE_BRA
, "BRA", 0 },
140 { OPCODE_BRK
, "BRK", 0 },
141 { OPCODE_CAL
, "CAL", 0 },
142 { OPCODE_CMP
, "CMP", 3 },
143 { OPCODE_CONT
, "CONT", 1 },
144 { OPCODE_COS
, "COS", 1 },
145 { OPCODE_DDX
, "DDX", 1 },
146 { OPCODE_DDY
, "DDY", 1 },
147 { OPCODE_DP3
, "DP3", 2 },
148 { OPCODE_DP4
, "DP4", 2 },
149 { OPCODE_DPH
, "DPH", 2 },
150 { OPCODE_DST
, "DST", 2 },
151 { OPCODE_ELSE
, "ELSE", 0 },
152 { OPCODE_END
, "END", 0 },
153 { OPCODE_ENDIF
, "ENDIF", 0 },
154 { OPCODE_ENDLOOP
,"ENDLOOP", 0 },
155 { OPCODE_ENDSUB
, "ENDSUB", 0 },
156 { OPCODE_EX2
, "EX2", 1 },
157 { OPCODE_EXP
, "EXP", 1 },
158 { OPCODE_FLR
, "FLR", 1 },
159 { OPCODE_FRC
, "FRC", 1 },
160 { OPCODE_IF
, "IF", 0 },
161 { OPCODE_INT
, "INT", 1 },
162 { OPCODE_KIL
, "KIL", 1 },
163 { OPCODE_KIL_NV
, "KIL", 0 },
164 { OPCODE_LG2
, "LG2", 1 },
165 { OPCODE_LIT
, "LIT", 1 },
166 { OPCODE_LOG
, "LOG", 1 },
167 { OPCODE_LRP
, "LRP", 3 },
168 { OPCODE_MAD
, "MAD", 3 },
169 { OPCODE_MAX
, "MAX", 2 },
170 { OPCODE_MIN
, "MIN", 2 },
171 { OPCODE_MOV
, "MOV", 1 },
172 { OPCODE_MUL
, "MUL", 2 },
173 { OPCODE_NOISE1
, "NOISE1", 1 },
174 { OPCODE_NOISE2
, "NOISE2", 1 },
175 { OPCODE_NOISE3
, "NOISE3", 1 },
176 { OPCODE_NOISE4
, "NOISE4", 1 },
177 { OPCODE_PK2H
, "PK2H", 1 },
178 { OPCODE_PK2US
, "PK2US", 1 },
179 { OPCODE_PK4B
, "PK4B", 1 },
180 { OPCODE_PK4UB
, "PK4UB", 1 },
181 { OPCODE_POW
, "POW", 2 },
182 { OPCODE_POPA
, "POPA", 0 },
183 { OPCODE_PRINT
, "PRINT", 1 },
184 { OPCODE_PUSHA
, "PUSHA", 0 },
185 { OPCODE_RCC
, "RCC", 1 },
186 { OPCODE_RCP
, "RCP", 1 },
187 { OPCODE_RET
, "RET", 0 },
188 { OPCODE_RFL
, "RFL", 1 },
189 { OPCODE_RSQ
, "RSQ", 1 },
190 { OPCODE_SCS
, "SCS", 1 },
191 { OPCODE_SEQ
, "SEQ", 2 },
192 { OPCODE_SFL
, "SFL", 0 },
193 { OPCODE_SGE
, "SGE", 2 },
194 { OPCODE_SGT
, "SGT", 2 },
195 { OPCODE_SIN
, "SIN", 1 },
196 { OPCODE_SLE
, "SLE", 2 },
197 { OPCODE_SLT
, "SLT", 2 },
198 { OPCODE_SNE
, "SNE", 2 },
199 { OPCODE_SSG
, "SSG", 1 },
200 { OPCODE_STR
, "STR", 0 },
201 { OPCODE_SUB
, "SUB", 2 },
202 { OPCODE_SWZ
, "SWZ", 1 },
203 { OPCODE_TEX
, "TEX", 1 },
204 { OPCODE_TXB
, "TXB", 1 },
205 { OPCODE_TXD
, "TXD", 3 },
206 { OPCODE_TXL
, "TXL", 1 },
207 { OPCODE_TXP
, "TXP", 1 },
208 { OPCODE_TXP_NV
, "TXP", 1 },
209 { OPCODE_UP2H
, "UP2H", 1 },
210 { OPCODE_UP2US
, "UP2US", 1 },
211 { OPCODE_UP4B
, "UP4B", 1 },
212 { OPCODE_UP4UB
, "UP4UB", 1 },
213 { OPCODE_X2D
, "X2D", 3 },
214 { OPCODE_XPD
, "XPD", 2 }
219 * Return the number of src registers for the given instruction/opcode.
222 _mesa_num_inst_src_regs(gl_inst_opcode opcode
)
224 ASSERT(opcode
== InstInfo
[opcode
].Opcode
);
225 ASSERT(OPCODE_XPD
== InstInfo
[OPCODE_XPD
].Opcode
);
226 return InstInfo
[opcode
].NumSrcRegs
;
231 * Return string name for given program opcode.
234 _mesa_opcode_string(gl_inst_opcode opcode
)
236 ASSERT(opcode
< MAX_OPCODE
);
237 return InstInfo
[opcode
].Name
;