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.
26 #include "main/glheader.h"
27 #include "main/imports.h"
28 #include "main/mtypes.h"
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
)
112 _mesa_memcpy(dest
, src
, n
* sizeof(struct prog_instruction
));
113 for (i
= 0; i
< n
; i
++) {
115 dest
[i
].Comment
= _mesa_strdup(src
[i
].Comment
);
122 * Free an array of instructions
125 _mesa_free_instructions(struct prog_instruction
*inst
, GLuint count
)
128 for (i
= 0; i
< count
; i
++) {
130 _mesa_free(inst
[i
].Data
);
132 _mesa_free((char *) inst
[i
].Comment
);
139 * Basic info about each instruction
141 struct instruction_info
143 gl_inst_opcode Opcode
;
151 * \note Opcode should equal array index!
153 static const struct instruction_info InstInfo
[MAX_OPCODE
] = {
154 { OPCODE_NOP
, "NOP", 0, 0 },
155 { OPCODE_ABS
, "ABS", 1, 1 },
156 { OPCODE_ADD
, "ADD", 2, 1 },
157 { OPCODE_AND
, "AND", 2, 1 },
158 { OPCODE_ARA
, "ARA", 1, 1 },
159 { OPCODE_ARL
, "ARL", 1, 1 },
160 { OPCODE_ARL_NV
, "ARL", 1, 1 },
161 { OPCODE_ARR
, "ARL", 1, 1 },
162 { OPCODE_BGNLOOP
,"BGNLOOP", 0, 0 },
163 { OPCODE_BGNSUB
, "BGNSUB", 0, 0 },
164 { OPCODE_BRA
, "BRA", 0, 0 },
165 { OPCODE_BRK
, "BRK", 0, 0 },
166 { OPCODE_CAL
, "CAL", 0, 0 },
167 { OPCODE_CMP
, "CMP", 3, 1 },
168 { OPCODE_CONT
, "CONT", 0, 0 },
169 { OPCODE_COS
, "COS", 1, 1 },
170 { OPCODE_DDX
, "DDX", 1, 1 },
171 { OPCODE_DDY
, "DDY", 1, 1 },
172 { OPCODE_DP2
, "DP2", 2, 1 },
173 { OPCODE_DP2A
, "DP2A", 3, 1 },
174 { OPCODE_DP3
, "DP3", 2, 1 },
175 { OPCODE_DP4
, "DP4", 2, 1 },
176 { OPCODE_DPH
, "DPH", 2, 1 },
177 { OPCODE_DST
, "DST", 2, 1 },
178 { OPCODE_ELSE
, "ELSE", 0, 0 },
179 { OPCODE_END
, "END", 0, 0 },
180 { OPCODE_ENDIF
, "ENDIF", 0, 0 },
181 { OPCODE_ENDLOOP
,"ENDLOOP", 0, 0 },
182 { OPCODE_ENDSUB
, "ENDSUB", 0, 0 },
183 { OPCODE_EX2
, "EX2", 1, 1 },
184 { OPCODE_EXP
, "EXP", 1, 1 },
185 { OPCODE_FLR
, "FLR", 1, 1 },
186 { OPCODE_FRC
, "FRC", 1, 1 },
187 { OPCODE_IF
, "IF", 1, 0 },
188 { OPCODE_KIL
, "KIL", 1, 0 },
189 { OPCODE_KIL_NV
, "KIL", 0, 0 },
190 { OPCODE_LG2
, "LG2", 1, 1 },
191 { OPCODE_LIT
, "LIT", 1, 1 },
192 { OPCODE_LOG
, "LOG", 1, 1 },
193 { OPCODE_LRP
, "LRP", 3, 1 },
194 { OPCODE_MAD
, "MAD", 3, 1 },
195 { OPCODE_MAX
, "MAX", 2, 1 },
196 { OPCODE_MIN
, "MIN", 2, 1 },
197 { OPCODE_MOV
, "MOV", 1, 1 },
198 { OPCODE_MUL
, "MUL", 2, 1 },
199 { OPCODE_NOISE1
, "NOISE1", 1, 1 },
200 { OPCODE_NOISE2
, "NOISE2", 1, 1 },
201 { OPCODE_NOISE3
, "NOISE3", 1, 1 },
202 { OPCODE_NOISE4
, "NOISE4", 1, 1 },
203 { OPCODE_NOT
, "NOT", 1, 1 },
204 { OPCODE_NRM3
, "NRM3", 1, 1 },
205 { OPCODE_NRM4
, "NRM4", 1, 1 },
206 { OPCODE_OR
, "OR", 2, 1 },
207 { OPCODE_PK2H
, "PK2H", 1, 1 },
208 { OPCODE_PK2US
, "PK2US", 1, 1 },
209 { OPCODE_PK4B
, "PK4B", 1, 1 },
210 { OPCODE_PK4UB
, "PK4UB", 1, 1 },
211 { OPCODE_POW
, "POW", 2, 1 },
212 { OPCODE_POPA
, "POPA", 0, 0 },
213 { OPCODE_PRINT
, "PRINT", 1, 0 },
214 { OPCODE_PUSHA
, "PUSHA", 0, 0 },
215 { OPCODE_RCC
, "RCC", 1, 1 },
216 { OPCODE_RCP
, "RCP", 1, 1 },
217 { OPCODE_RET
, "RET", 0, 0 },
218 { OPCODE_RFL
, "RFL", 1, 1 },
219 { OPCODE_RSQ
, "RSQ", 1, 1 },
220 { OPCODE_SCS
, "SCS", 1, 1 },
221 { OPCODE_SEQ
, "SEQ", 2, 1 },
222 { OPCODE_SFL
, "SFL", 0, 1 },
223 { OPCODE_SGE
, "SGE", 2, 1 },
224 { OPCODE_SGT
, "SGT", 2, 1 },
225 { OPCODE_SIN
, "SIN", 1, 1 },
226 { OPCODE_SLE
, "SLE", 2, 1 },
227 { OPCODE_SLT
, "SLT", 2, 1 },
228 { OPCODE_SNE
, "SNE", 2, 1 },
229 { OPCODE_SSG
, "SSG", 1, 1 },
230 { OPCODE_STR
, "STR", 0, 1 },
231 { OPCODE_SUB
, "SUB", 2, 1 },
232 { OPCODE_SWZ
, "SWZ", 1, 1 },
233 { OPCODE_TEX
, "TEX", 1, 1 },
234 { OPCODE_TXB
, "TXB", 1, 1 },
235 { OPCODE_TXD
, "TXD", 3, 1 },
236 { OPCODE_TXL
, "TXL", 1, 1 },
237 { OPCODE_TXP
, "TXP", 1, 1 },
238 { OPCODE_TXP_NV
, "TXP", 1, 1 },
239 { OPCODE_TRUNC
, "TRUNC", 1, 1 },
240 { OPCODE_UP2H
, "UP2H", 1, 1 },
241 { OPCODE_UP2US
, "UP2US", 1, 1 },
242 { OPCODE_UP4B
, "UP4B", 1, 1 },
243 { OPCODE_UP4UB
, "UP4UB", 1, 1 },
244 { OPCODE_X2D
, "X2D", 3, 1 },
245 { OPCODE_XOR
, "XOR", 2, 1 },
246 { OPCODE_XPD
, "XPD", 2, 1 }
251 * Return the number of src registers for the given instruction/opcode.
254 _mesa_num_inst_src_regs(gl_inst_opcode opcode
)
256 ASSERT(opcode
== InstInfo
[opcode
].Opcode
);
257 ASSERT(OPCODE_XPD
== InstInfo
[OPCODE_XPD
].Opcode
);
258 return InstInfo
[opcode
].NumSrcRegs
;
263 * Return the number of dst registers for the given instruction/opcode.
266 _mesa_num_inst_dst_regs(gl_inst_opcode opcode
)
268 ASSERT(opcode
== InstInfo
[opcode
].Opcode
);
269 ASSERT(OPCODE_XPD
== InstInfo
[OPCODE_XPD
].Opcode
);
270 return InstInfo
[opcode
].NumDstRegs
;
275 _mesa_is_tex_instruction(gl_inst_opcode opcode
)
277 return (opcode
== OPCODE_TEX
||
278 opcode
== OPCODE_TXB
||
279 opcode
== OPCODE_TXD
||
280 opcode
== OPCODE_TXL
||
281 opcode
== OPCODE_TXP
);
286 * Return string name for given program opcode.
289 _mesa_opcode_string(gl_inst_opcode opcode
)
291 ASSERT(opcode
< MAX_OPCODE
);
292 return InstInfo
[opcode
].Name
;