2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2004 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.
27 * NVIDIA fragment program parser.
32 * Regarding GL_NV_fragment_program:
34 * Portions of this software may use or implement intellectual
35 * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims
36 * any and all warranties with respect to such intellectual property,
37 * including any use thereof or modifications thereto.
46 #include "nvfragprog.h"
47 #include "nvfragparse.h"
48 #include "nvprogram.h"
58 #define INPUT_1V_T 7 /* one source vector, plus textureId */
59 #define INPUT_3V_T 8 /* one source vector, plus textureId */
63 #define OUTPUT_NONE 22
65 /* IRIX defines some of these */
72 /* Optional suffixes */
73 #define _R FLOAT32 /* float */
74 #define _H FLOAT16 /* half-float */
75 #define _X FIXED12 /* fixed */
76 #define _C 0x08 /* set cond codes */
77 #define _S 0x10 /* saturate, clamp result to [0,1] */
79 struct instruction_pattern
{
81 enum fp_opcode opcode
;
87 static const struct instruction_pattern Instructions
[] = {
88 { "ADD", FP_OPCODE_ADD
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
89 { "COS", FP_OPCODE_COS
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
90 { "DDX", FP_OPCODE_DDX
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
91 { "DDY", FP_OPCODE_DDY
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
92 { "DP3", FP_OPCODE_DP3
, INPUT_2V
, OUTPUT_S
, _R
| _H
| _X
| _C
| _S
},
93 { "DP4", FP_OPCODE_DP4
, INPUT_2V
, OUTPUT_S
, _R
| _H
| _X
| _C
| _S
},
94 { "DST", FP_OPCODE_DP4
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
95 { "EX2", FP_OPCODE_DP4
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
96 { "FLR", FP_OPCODE_FLR
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
97 { "FRC", FP_OPCODE_FRC
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
98 { "KIL", FP_OPCODE_KIL
, INPUT_CC
, OUTPUT_NONE
, 0 },
99 { "LG2", FP_OPCODE_LG2
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
100 { "LIT", FP_OPCODE_LIT
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
101 { "LRP", FP_OPCODE_LRP
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
102 { "MAD", FP_OPCODE_MAD
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
103 { "MAX", FP_OPCODE_MAX
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
104 { "MIN", FP_OPCODE_MIN
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
105 { "MOV", FP_OPCODE_MOV
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
106 { "MUL", FP_OPCODE_MUL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
107 { "PK2H", FP_OPCODE_PK2H
, INPUT_1V
, OUTPUT_S
, 0 },
108 { "PK2US", FP_OPCODE_PK2US
, INPUT_1V
, OUTPUT_S
, 0 },
109 { "PK4B", FP_OPCODE_PK4B
, INPUT_1V
, OUTPUT_S
, 0 },
110 { "PK4UB", FP_OPCODE_PK4UB
, INPUT_1V
, OUTPUT_S
, 0 },
111 { "POW", FP_OPCODE_POW
, INPUT_2S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
112 { "RCP", FP_OPCODE_RCP
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
113 { "RFL", FP_OPCODE_RFL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
114 { "RSQ", FP_OPCODE_RSQ
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
115 { "SEQ", FP_OPCODE_SEQ
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
116 { "SFL", FP_OPCODE_SFL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
117 { "SGE", FP_OPCODE_SGE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
118 { "SGT", FP_OPCODE_SGT
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
119 { "SIN", FP_OPCODE_SIN
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
120 { "SLE", FP_OPCODE_SLE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
121 { "SLT", FP_OPCODE_SLT
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
122 { "SNE", FP_OPCODE_SNE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
123 { "STR", FP_OPCODE_STR
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
124 { "SUB", FP_OPCODE_SUB
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
125 { "TEX", FP_OPCODE_TEX
, INPUT_1V_T
, OUTPUT_V
, _C
| _S
},
126 { "TXD", FP_OPCODE_TXD
, INPUT_3V_T
, OUTPUT_V
, _C
| _S
},
127 { "TXP", FP_OPCODE_TXP
, INPUT_1V_T
, OUTPUT_V
, _C
| _S
},
128 { "UP2H", FP_OPCODE_UP2H
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
129 { "UP2US", FP_OPCODE_UP2US
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
130 { "UP4B", FP_OPCODE_UP4B
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
131 { "UP4UB", FP_OPCODE_UP4UB
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
132 { "X2D", FP_OPCODE_X2D
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
133 { NULL
, (enum fp_opcode
) -1, 0, 0, 0 }
138 * Information needed or computed during parsing.
139 * Remember, we can't modify the target program object until we've
140 * _successfully_ parsed the program text.
144 const GLubyte
*start
; /* start of program string */
145 const GLubyte
*pos
; /* current position */
146 const GLubyte
*curLine
;
147 struct fragment_program
*program
; /* current program */
149 struct program_parameter_list
*parameters
;
151 GLuint numInst
; /* number of instructions parsed */
152 GLuint inputsRead
; /* bitmask of input registers used */
153 GLuint outputsWritten
; /* bitmask of 1 << FRAG_OUTPUT_* bits */
154 GLuint texturesUsed
[MAX_TEXTURE_IMAGE_UNITS
];
160 * Called whenever we find an error during parsing.
163 record_error(struct parse_state
*parseState
, const char *msg
, int lineNo
)
167 const GLubyte
*lineStr
;
168 lineStr
= _mesa_find_line_column(parseState
->start
,
169 parseState
->pos
, &line
, &column
);
170 _mesa_debug(parseState
->ctx
,
171 "nvfragparse.c(%d): line %d, column %d:%s (%s)\n",
172 lineNo
, line
, column
, (char *) lineStr
, msg
);
173 _mesa_free((void *) lineStr
);
178 /* Check that no error was already recorded. Only record the first one. */
179 if (parseState
->ctx
->Program
.ErrorString
[0] == 0) {
180 _mesa_set_program_error(parseState
->ctx
,
181 parseState
->pos
- parseState
->start
,
187 #define RETURN_ERROR \
189 record_error(parseState, "Unexpected end of input.", __LINE__); \
193 #define RETURN_ERROR1(msg) \
195 record_error(parseState, msg, __LINE__); \
199 #define RETURN_ERROR2(msg1, msg2) \
202 _mesa_sprintf(err, "%s %s", msg1, msg2); \
203 record_error(parseState, err, __LINE__); \
211 * Search a list of instruction structures for a match.
213 static struct instruction_pattern
214 MatchInstruction(const GLubyte
*token
)
216 const struct instruction_pattern
*inst
;
217 struct instruction_pattern result
;
219 for (inst
= Instructions
; inst
->name
; inst
++) {
220 if (_mesa_strncmp((const char *) token
, inst
->name
, 3) == 0) {
226 if (token
[i
] == 'R') {
227 result
.suffixes
|= _R
;
230 else if (token
[i
] == 'H') {
231 result
.suffixes
|= _H
;
234 else if (token
[i
] == 'X') {
235 result
.suffixes
|= _X
;
238 if (token
[i
] == 'C') {
239 result
.suffixes
|= _C
;
242 if (token
[i
] == '_' && token
[i
+1] == 'S' &&
243 token
[i
+2] == 'A' && token
[i
+3] == 'T') {
244 result
.suffixes
|= _S
;
249 result
.opcode
= (enum fp_opcode
) -1;
256 /**********************************************************************/
259 static GLboolean
IsLetter(GLubyte b
)
261 return (b
>= 'a' && b
<= 'z') ||
262 (b
>= 'A' && b
<= 'Z') ||
268 static GLboolean
IsDigit(GLubyte b
)
270 return b
>= '0' && b
<= '9';
274 static GLboolean
IsWhitespace(GLubyte b
)
276 return b
== ' ' || b
== '\t' || b
== '\n' || b
== '\r';
281 * Starting at 'str' find the next token. A token can be an integer,
282 * an identifier or punctuation symbol.
283 * \return <= 0 we found an error, else, return number of characters parsed.
286 GetToken(struct parse_state
*parseState
, GLubyte
*token
)
288 const GLubyte
*str
= parseState
->pos
;
293 /* skip whitespace and comments */
294 while (str
[i
] && (IsWhitespace(str
[i
]) || str
[i
] == '#')) {
297 while (str
[i
] && (str
[i
] != '\n' && str
[i
] != '\r')) {
300 if (str
[i
] == '\n' || str
[i
] == '\r')
301 parseState
->curLine
= str
+ i
+ 1;
304 /* skip whitespace */
305 if (str
[i
] == '\n' || str
[i
] == '\r')
306 parseState
->curLine
= str
+ i
+ 1;
314 /* try matching an integer */
315 while (str
[i
] && IsDigit(str
[i
])) {
316 token
[j
++] = str
[i
++];
318 if (j
> 0 || !str
[i
]) {
323 /* try matching an identifier */
324 if (IsLetter(str
[i
])) {
325 while (str
[i
] && (IsLetter(str
[i
]) || IsDigit(str
[i
]))) {
326 token
[j
++] = str
[i
++];
332 /* punctuation character */
346 * Get next token from input stream and increment stream pointer past token.
349 Parse_Token(struct parse_state
*parseState
, GLubyte
*token
)
352 i
= GetToken(parseState
, token
);
354 parseState
->pos
+= (-i
);
357 parseState
->pos
+= i
;
363 * Get next token from input stream but don't increment stream pointer.
366 Peek_Token(struct parse_state
*parseState
, GLubyte
*token
)
369 i
= GetToken(parseState
, token
);
371 parseState
->pos
+= (-i
);
374 len
= _mesa_strlen((const char *) token
);
375 parseState
->pos
+= (i
- len
);
380 /**********************************************************************/
382 static const char *InputRegisters
[MAX_NV_FRAGMENT_PROGRAM_INPUTS
+ 1] = {
383 "WPOS", "COL0", "COL1", "FOGC",
384 "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", NULL
387 static const char *OutputRegisters
[MAX_NV_FRAGMENT_PROGRAM_OUTPUTS
+ 1] = {
389 /* These are only allows for register combiners */
391 "TEX0", "TEX1", "TEX2", "TEX3",
399 /**********************************************************************/
402 * Try to match 'pattern' as the next token after any whitespace/comments.
405 Parse_String(struct parse_state
*parseState
, const char *pattern
)
410 /* skip whitespace and comments */
411 while (IsWhitespace(*parseState
->pos
) || *parseState
->pos
== '#') {
412 if (*parseState
->pos
== '#') {
413 while (*parseState
->pos
&& (*parseState
->pos
!= '\n' && *parseState
->pos
!= '\r')) {
414 parseState
->pos
+= 1;
416 if (*parseState
->pos
== '\n' || *parseState
->pos
== '\r')
417 parseState
->curLine
= parseState
->pos
+ 1;
420 /* skip whitespace */
421 if (*parseState
->pos
== '\n' || *parseState
->pos
== '\r')
422 parseState
->curLine
= parseState
->pos
+ 1;
423 parseState
->pos
+= 1;
427 /* Try to match the pattern */
429 for (i
= 0; pattern
[i
]; i
++) {
430 if (*m
!= (GLubyte
) pattern
[i
])
436 return GL_TRUE
; /* success */
441 Parse_Identifier(struct parse_state
*parseState
, GLubyte
*ident
)
443 if (!Parse_Token(parseState
, ident
))
445 if (IsLetter(ident
[0]))
448 RETURN_ERROR1("Expected an identfier");
453 * Parse a floating point constant, or a defined symbol name.
455 * Output: number[0 .. 3] will get the value.
458 Parse_ScalarConstant(struct parse_state
*parseState
, GLfloat
*number
)
462 *number
= (GLfloat
) _mesa_strtod((const char *) parseState
->pos
, &end
);
464 if (end
&& end
> (char *) parseState
->pos
) {
466 parseState
->pos
= (GLubyte
*) end
;
473 /* should be an identifier */
475 const GLfloat
*constant
;
476 if (!Parse_Identifier(parseState
, ident
))
477 RETURN_ERROR1("Expected an identifier");
478 constant
= _mesa_lookup_parameter_value(parseState
->parameters
,
479 -1, (const char *) ident
);
480 /* XXX Check that it's a constant and not a parameter */
482 RETURN_ERROR1("Undefined symbol");
485 COPY_4V(number
, constant
);
494 * Parse a vector constant, one of:
497 * { float, float, float }
498 * { float, float, float, float }
501 Parse_VectorConstant(struct parse_state
*parseState
, GLfloat
*vec
)
503 /* "{" was already consumed */
505 ASSIGN_4V(vec
, 0.0, 0.0, 0.0, 1.0);
507 if (!Parse_ScalarConstant(parseState
, vec
+0)) /* X */
510 if (Parse_String(parseState
, "}")) {
514 if (!Parse_String(parseState
, ","))
515 RETURN_ERROR1("Expected comma in vector constant");
517 if (!Parse_ScalarConstant(parseState
, vec
+1)) /* Y */
520 if (Parse_String(parseState
, "}")) {
524 if (!Parse_String(parseState
, ","))
525 RETURN_ERROR1("Expected comma in vector constant");
527 if (!Parse_ScalarConstant(parseState
, vec
+2)) /* Z */
530 if (Parse_String(parseState
, "}")) {
534 if (!Parse_String(parseState
, ","))
535 RETURN_ERROR1("Expected comma in vector constant");
537 if (!Parse_ScalarConstant(parseState
, vec
+3)) /* W */
540 if (!Parse_String(parseState
, "}"))
541 RETURN_ERROR1("Expected closing brace in vector constant");
548 * Parse <number>, <varname> or {a, b, c, d}.
549 * Return number of values in the vector or scalar, or zero if parse error.
552 Parse_VectorOrScalarConstant(struct parse_state
*parseState
, GLfloat
*vec
)
554 if (Parse_String(parseState
, "{")) {
555 return Parse_VectorConstant(parseState
, vec
);
558 GLboolean b
= Parse_ScalarConstant(parseState
, vec
);
560 vec
[1] = vec
[2] = vec
[3] = vec
[0];
568 * Parse a texture image source:
569 * [TEX0 | TEX1 | .. | TEX15] , [1D | 2D | 3D | CUBE | RECT]
572 Parse_TextureImageId(struct parse_state
*parseState
,
573 GLubyte
*texUnit
, GLubyte
*texTargetBit
)
575 GLubyte imageSrc
[100];
578 if (!Parse_Token(parseState
, imageSrc
))
581 if (imageSrc
[0] != 'T' ||
582 imageSrc
[1] != 'E' ||
583 imageSrc
[2] != 'X') {
584 RETURN_ERROR1("Expected TEX# source");
586 unit
= _mesa_atoi((const char *) imageSrc
+ 3);
587 if ((unit
< 0 || unit
> MAX_TEXTURE_IMAGE_UNITS
) ||
588 (unit
== 0 && (imageSrc
[3] != '0' || imageSrc
[4] != 0))) {
589 RETURN_ERROR1("Invalied TEX# source index");
593 if (!Parse_String(parseState
, ","))
594 RETURN_ERROR1("Expected ,");
596 if (Parse_String(parseState
, "1D")) {
597 *texTargetBit
= TEXTURE_1D_BIT
;
599 else if (Parse_String(parseState
, "2D")) {
600 *texTargetBit
= TEXTURE_2D_BIT
;
602 else if (Parse_String(parseState
, "3D")) {
603 *texTargetBit
= TEXTURE_3D_BIT
;
605 else if (Parse_String(parseState
, "CUBE")) {
606 *texTargetBit
= TEXTURE_CUBE_BIT
;
608 else if (Parse_String(parseState
, "RECT")) {
609 *texTargetBit
= TEXTURE_RECT_BIT
;
612 RETURN_ERROR1("Invalid texture target token");
615 /* update record of referenced texture units */
616 parseState
->texturesUsed
[*texUnit
] |= *texTargetBit
;
617 if (_mesa_bitcount(parseState
->texturesUsed
[*texUnit
]) > 1) {
618 RETURN_ERROR1("Only one texture target can be used per texture unit.");
626 * Parse a scalar suffix like .x, .y, .z or .w or parse a swizzle suffix
627 * like .wxyz, .xxyy, etc and return the swizzle indexes.
630 Parse_SwizzleSuffix(const GLubyte
*token
, GLuint swizzle
[4])
633 /* single letter swizzle (scalar) */
635 ASSIGN_4V(swizzle
, 0, 0, 0, 0);
636 else if (token
[0] == 'y')
637 ASSIGN_4V(swizzle
, 1, 1, 1, 1);
638 else if (token
[0] == 'z')
639 ASSIGN_4V(swizzle
, 2, 2, 2, 2);
640 else if (token
[0] == 'w')
641 ASSIGN_4V(swizzle
, 3, 3, 3, 3);
646 /* 4-component swizzle (vector) */
648 for (k
= 0; token
[k
] && k
< 4; k
++) {
651 else if (token
[k
] == 'y')
653 else if (token
[k
] == 'z')
655 else if (token
[k
] == 'w')
668 Parse_CondCodeMask(struct parse_state
*parseState
,
669 struct fp_dst_register
*dstReg
)
671 if (Parse_String(parseState
, "EQ"))
672 dstReg
->CondMask
= COND_EQ
;
673 else if (Parse_String(parseState
, "GE"))
674 dstReg
->CondMask
= COND_GE
;
675 else if (Parse_String(parseState
, "GT"))
676 dstReg
->CondMask
= COND_GT
;
677 else if (Parse_String(parseState
, "LE"))
678 dstReg
->CondMask
= COND_LE
;
679 else if (Parse_String(parseState
, "LT"))
680 dstReg
->CondMask
= COND_LT
;
681 else if (Parse_String(parseState
, "NE"))
682 dstReg
->CondMask
= COND_NE
;
683 else if (Parse_String(parseState
, "TR"))
684 dstReg
->CondMask
= COND_TR
;
685 else if (Parse_String(parseState
, "FL"))
686 dstReg
->CondMask
= COND_FL
;
688 RETURN_ERROR1("Invalid condition code mask");
690 /* look for optional .xyzw swizzle */
691 if (Parse_String(parseState
, ".")) {
693 if (!Parse_Token(parseState
, token
)) /* get xyzw suffix */
696 if (!Parse_SwizzleSuffix(token
, dstReg
->CondSwizzle
))
697 RETURN_ERROR1("Invalid swizzle suffix");
705 * Parse a temporary register: Rnn or Hnn
708 Parse_TempReg(struct parse_state
*parseState
, GLint
*tempRegNum
)
712 /* Should be 'R##' or 'H##' */
713 if (!Parse_Token(parseState
, token
))
715 if (token
[0] != 'R' && token
[0] != 'H')
716 RETURN_ERROR1("Expected R## or H##");
718 if (IsDigit(token
[1])) {
719 GLint reg
= _mesa_atoi((const char *) (token
+ 1));
722 if (reg
>= MAX_NV_FRAGMENT_PROGRAM_TEMPS
)
723 RETURN_ERROR1("Invalid temporary register name");
727 RETURN_ERROR1("Invalid temporary register name");
735 * Parse a write-only dummy register: RC or HC.
738 Parse_DummyReg(struct parse_state
*parseState
, GLint
*regNum
)
740 if (Parse_String(parseState
, "RC")) {
743 else if (Parse_String(parseState
, "HC")) {
747 RETURN_ERROR1("Invalid write-only register name");
755 * Parse a program local parameter register "p[##]"
758 Parse_ProgramParamReg(struct parse_state
*parseState
, GLint
*regNum
)
762 if (!Parse_String(parseState
, "p["))
763 RETURN_ERROR1("Expected p[");
765 if (!Parse_Token(parseState
, token
))
768 if (IsDigit(token
[0])) {
769 /* a numbered program parameter register */
770 GLint reg
= _mesa_atoi((const char *) token
);
771 if (reg
>= MAX_NV_FRAGMENT_PROGRAM_PARAMS
)
772 RETURN_ERROR1("Invalid constant program number");
779 if (!Parse_String(parseState
, "]"))
780 RETURN_ERROR1("Expected ]");
787 * Parse f[name] - fragment input register
790 Parse_FragReg(struct parse_state
*parseState
, GLint
*tempRegNum
)
796 if (!Parse_String(parseState
, "f["))
797 RETURN_ERROR1("Expected f[");
799 /* get <name> and look for match */
800 if (!Parse_Token(parseState
, token
)) {
803 for (j
= 0; InputRegisters
[j
]; j
++) {
804 if (_mesa_strcmp((const char *) token
, InputRegisters
[j
]) == 0) {
806 parseState
->inputsRead
|= (1 << j
);
810 if (!InputRegisters
[j
]) {
811 /* unknown input register label */
812 RETURN_ERROR2("Invalid register name", token
);
816 if (!Parse_String(parseState
, "]"))
817 RETURN_ERROR1("Expected ]");
824 Parse_OutputReg(struct parse_state
*parseState
, GLint
*outputRegNum
)
830 if (!Parse_String(parseState
, "o["))
831 RETURN_ERROR1("Expected o[");
833 /* Get output reg name */
834 if (!Parse_Token(parseState
, token
))
837 /* try to match an output register name */
838 for (j
= 0; OutputRegisters
[j
]; j
++) {
839 if (_mesa_strcmp((const char *) token
, OutputRegisters
[j
]) == 0) {
840 static GLuint bothColors
= (1 << FRAG_OUTPUT_COLR
) | (1 << FRAG_OUTPUT_COLH
);
842 parseState
->outputsWritten
|= (1 << j
);
843 if ((parseState
->outputsWritten
& bothColors
) == bothColors
) {
844 RETURN_ERROR1("Illegal to write to both o[COLR] and o[COLH]");
849 if (!OutputRegisters
[j
])
850 RETURN_ERROR1("Invalid output register name");
853 if (!Parse_String(parseState
, "]"))
854 RETURN_ERROR1("Expected ]");
861 Parse_MaskedDstReg(struct parse_state
*parseState
,
862 struct fp_dst_register
*dstReg
)
866 /* Dst reg can be R<n>, H<n>, o[n], RC or HC */
867 if (!Peek_Token(parseState
, token
))
870 if (_mesa_strcmp((const char *) token
, "RC") == 0 ||
871 _mesa_strcmp((const char *) token
, "HC") == 0) {
872 /* a write-only register */
873 dstReg
->File
= PROGRAM_WRITE_ONLY
;
874 if (!Parse_DummyReg(parseState
, &dstReg
->Index
))
877 else if (token
[0] == 'R' || token
[0] == 'H') {
878 /* a temporary register */
879 dstReg
->File
= PROGRAM_TEMPORARY
;
880 if (!Parse_TempReg(parseState
, &dstReg
->Index
))
883 else if (token
[0] == 'o') {
884 /* an output register */
885 dstReg
->File
= PROGRAM_OUTPUT
;
886 if (!Parse_OutputReg(parseState
, &dstReg
->Index
))
890 RETURN_ERROR1("Invalid destination register name");
893 /* Parse optional write mask */
894 if (Parse_String(parseState
, ".")) {
898 if (!Parse_Token(parseState
, token
)) /* get xyzw writemask */
901 dstReg
->WriteMask
[0] = GL_FALSE
;
902 dstReg
->WriteMask
[1] = GL_FALSE
;
903 dstReg
->WriteMask
[2] = GL_FALSE
;
904 dstReg
->WriteMask
[3] = GL_FALSE
;
906 if (token
[k
] == 'x') {
907 dstReg
->WriteMask
[0] = GL_TRUE
;
910 if (token
[k
] == 'y') {
911 dstReg
->WriteMask
[1] = GL_TRUE
;
914 if (token
[k
] == 'z') {
915 dstReg
->WriteMask
[2] = GL_TRUE
;
918 if (token
[k
] == 'w') {
919 dstReg
->WriteMask
[3] = GL_TRUE
;
923 RETURN_ERROR1("Invalid writemask character");
928 dstReg
->WriteMask
[0] = GL_TRUE
;
929 dstReg
->WriteMask
[1] = GL_TRUE
;
930 dstReg
->WriteMask
[2] = GL_TRUE
;
931 dstReg
->WriteMask
[3] = GL_TRUE
;
934 /* optional condition code mask */
935 if (Parse_String(parseState
, "(")) {
936 /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".x|y|z|w) */
937 /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".[xyzw]) */
938 if (!Parse_CondCodeMask(parseState
, dstReg
))
941 if (!Parse_String(parseState
, ")")) /* consume ")" */
942 RETURN_ERROR1("Expected )");
947 /* no cond code mask */
948 dstReg
->CondMask
= COND_TR
;
949 dstReg
->CondSwizzle
[0] = 0;
950 dstReg
->CondSwizzle
[1] = 1;
951 dstReg
->CondSwizzle
[2] = 2;
952 dstReg
->CondSwizzle
[3] = 3;
959 * Parse a vector source (register, constant, etc):
960 * <vectorSrc> ::= <absVectorSrc>
962 * <absVectorSrc> ::= <negate> "|" <baseVectorSrc> "|"
965 Parse_VectorSrc(struct parse_state
*parseState
,
966 struct fp_src_register
*srcReg
)
972 * First, take care of +/- and absolute value stuff.
974 if (Parse_String(parseState
, "-"))
976 else if (Parse_String(parseState
, "+"))
979 if (Parse_String(parseState
, "|")) {
980 srcReg
->Abs
= GL_TRUE
;
981 srcReg
->NegateAbs
= (sign
< 0.0F
) ? GL_TRUE
: GL_FALSE
;
983 if (Parse_String(parseState
, "-"))
984 srcReg
->NegateBase
= GL_TRUE
;
985 else if (Parse_String(parseState
, "+"))
986 srcReg
->NegateBase
= GL_FALSE
;
988 srcReg
->NegateBase
= GL_FALSE
;
991 srcReg
->Abs
= GL_FALSE
;
992 srcReg
->NegateAbs
= GL_FALSE
;
993 srcReg
->NegateBase
= (sign
< 0.0F
) ? GL_TRUE
: GL_FALSE
;
996 /* This should be the real src vector/register name */
997 if (!Peek_Token(parseState
, token
))
1000 /* Src reg can be Rn, Hn, f[n], p[n], a named parameter, a scalar
1001 * literal or vector literal.
1003 if (token
[0] == 'R' || token
[0] == 'H') {
1004 srcReg
->File
= PROGRAM_TEMPORARY
;
1005 if (!Parse_TempReg(parseState
, &srcReg
->Index
))
1008 else if (token
[0] == 'f') {
1009 /* XXX this might be an identier! */
1010 srcReg
->File
= PROGRAM_INPUT
;
1011 if (!Parse_FragReg(parseState
, &srcReg
->Index
))
1014 else if (token
[0] == 'p') {
1015 /* XXX this might be an identier! */
1016 srcReg
->File
= PROGRAM_LOCAL_PARAM
;
1017 if (!Parse_ProgramParamReg(parseState
, &srcReg
->Index
))
1020 else if (IsLetter(token
[0])){
1023 if (!Parse_Identifier(parseState
, ident
))
1025 paramIndex
= _mesa_lookup_parameter_index(parseState
->parameters
,
1026 -1, (const char *) ident
);
1027 if (paramIndex
< 0) {
1028 RETURN_ERROR2("Undefined constant or parameter: ", ident
);
1030 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1031 srcReg
->Index
= paramIndex
;
1033 else if (IsDigit(token
[0]) || token
[0] == '-' || token
[0] == '+' || token
[0] == '.'){
1034 /* literal scalar constant */
1037 if (!Parse_ScalarConstant(parseState
, values
))
1039 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
, values
);
1040 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1041 srcReg
->Index
= paramIndex
;
1043 else if (token
[0] == '{'){
1044 /* literal vector constant */
1047 (void) Parse_String(parseState
, "{");
1048 if (!Parse_VectorConstant(parseState
, values
))
1050 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
, values
);
1051 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1052 srcReg
->Index
= paramIndex
;
1055 RETURN_ERROR2("Invalid source register name", token
);
1058 /* init swizzle fields */
1059 srcReg
->Swizzle
[0] = 0;
1060 srcReg
->Swizzle
[1] = 1;
1061 srcReg
->Swizzle
[2] = 2;
1062 srcReg
->Swizzle
[3] = 3;
1064 /* Look for optional swizzle suffix */
1065 if (Parse_String(parseState
, ".")) {
1066 if (!Parse_Token(parseState
, token
))
1069 if (!Parse_SwizzleSuffix(token
, srcReg
->Swizzle
))
1070 RETURN_ERROR1("Invalid swizzle suffix");
1073 /* Finish absolute value */
1074 if (srcReg
->Abs
&& !Parse_String(parseState
, "|")) {
1075 RETURN_ERROR1("Expected |");
1083 Parse_ScalarSrcReg(struct parse_state
*parseState
,
1084 struct fp_src_register
*srcReg
)
1087 GLfloat sign
= 1.0F
;
1088 GLboolean needSuffix
= GL_TRUE
;
1091 * First, take care of +/- and absolute value stuff.
1093 if (Parse_String(parseState
, "-"))
1095 else if (Parse_String(parseState
, "+"))
1098 if (Parse_String(parseState
, "|")) {
1099 srcReg
->Abs
= GL_TRUE
;
1100 srcReg
->NegateAbs
= (sign
< 0.0F
) ? GL_TRUE
: GL_FALSE
;
1102 if (Parse_String(parseState
, "-"))
1103 srcReg
->NegateBase
= GL_TRUE
;
1104 else if (Parse_String(parseState
, "+"))
1105 srcReg
->NegateBase
= GL_FALSE
;
1107 srcReg
->NegateBase
= GL_FALSE
;
1110 srcReg
->Abs
= GL_FALSE
;
1111 srcReg
->NegateAbs
= GL_FALSE
;
1112 srcReg
->NegateBase
= (sign
< 0.0F
) ? GL_TRUE
: GL_FALSE
;
1115 if (!Peek_Token(parseState
, token
))
1118 /* Src reg can be R<n>, H<n> or a named fragment attrib */
1119 if (token
[0] == 'R' || token
[0] == 'H') {
1120 srcReg
->File
= PROGRAM_TEMPORARY
;
1121 if (!Parse_TempReg(parseState
, &srcReg
->Index
))
1124 else if (token
[0] == 'f') {
1125 srcReg
->File
= PROGRAM_INPUT
;
1126 if (!Parse_FragReg(parseState
, &srcReg
->Index
))
1129 else if (token
[0] == '{') {
1130 /* vector literal */
1133 (void) Parse_String(parseState
, "{");
1134 if (!Parse_VectorConstant(parseState
, values
))
1136 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
, values
);
1137 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1138 srcReg
->Index
= paramIndex
;
1140 else if (IsDigit(token
[0])) {
1141 /* scalar literal */
1144 if (!Parse_ScalarConstant(parseState
, values
))
1146 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
, values
);
1147 srcReg
->Index
= paramIndex
;
1148 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1149 needSuffix
= GL_FALSE
;
1152 RETURN_ERROR2("Invalid scalar source argument", token
);
1156 /* parse .[xyzw] suffix */
1157 if (!Parse_String(parseState
, "."))
1158 RETURN_ERROR1("Expected .");
1160 if (!Parse_Token(parseState
, token
))
1163 if (token
[0] == 'x' && token
[1] == 0) {
1164 srcReg
->Swizzle
[0] = 0;
1166 else if (token
[0] == 'y' && token
[1] == 0) {
1167 srcReg
->Swizzle
[0] = 1;
1169 else if (token
[0] == 'z' && token
[1] == 0) {
1170 srcReg
->Swizzle
[0] = 2;
1172 else if (token
[0] == 'w' && token
[1] == 0) {
1173 srcReg
->Swizzle
[0] = 3;
1176 RETURN_ERROR1("Invalid scalar source suffix");
1180 srcReg
->Swizzle
[0] = 0;
1182 srcReg
->Swizzle
[1] = srcReg
->Swizzle
[2] = srcReg
->Swizzle
[3] = 0;
1184 /* Finish absolute value */
1185 if (srcReg
->Abs
&& !Parse_String(parseState
, "|")) {
1186 RETURN_ERROR1("Expected |");
1195 Parse_InstructionSequence(struct parse_state
*parseState
,
1196 struct fp_instruction program
[])
1199 struct fp_instruction
*inst
= program
+ parseState
->numInst
;
1200 struct instruction_pattern instMatch
;
1203 /* Initialize the instruction */
1204 inst
->SrcReg
[0].File
= (enum register_file
) -1;
1205 inst
->SrcReg
[1].File
= (enum register_file
) -1;
1206 inst
->SrcReg
[2].File
= (enum register_file
) -1;
1207 inst
->DstReg
.File
= (enum register_file
) -1;
1208 inst
->DstReg
.CondSwizzle
[0] = 0;
1209 inst
->DstReg
.CondSwizzle
[1] = 1;
1210 inst
->DstReg
.CondSwizzle
[2] = 2;
1211 inst
->DstReg
.CondSwizzle
[3] = 3;
1213 /* special instructions */
1214 if (Parse_String(parseState
, "DEFINE")) {
1216 GLfloat value
[7]; /* yes, 7 to be safe */
1217 if (!Parse_Identifier(parseState
, id
))
1219 /* XXX make sure id is not a reserved identifer, like R9 */
1220 if (!Parse_String(parseState
, "="))
1221 RETURN_ERROR1("Expected =");
1222 if (!Parse_VectorOrScalarConstant(parseState
, value
))
1224 if (!Parse_String(parseState
, ";"))
1225 RETURN_ERROR1("Expected ;");
1226 if (_mesa_lookup_parameter_index(parseState
->parameters
,
1227 -1, (const char *) id
) >= 0) {
1228 RETURN_ERROR2(id
, "already defined");
1230 _mesa_add_named_parameter(parseState
->parameters
,
1231 (const char *) id
, value
);
1233 else if (Parse_String(parseState
, "DECLARE")) {
1235 GLfloat value
[7] = {0, 0, 0, 0, 0, 0, 0}; /* yes, to be safe */
1236 if (!Parse_Identifier(parseState
, id
))
1238 /* XXX make sure id is not a reserved identifer, like R9 */
1239 if (Parse_String(parseState
, "=")) {
1240 if (!Parse_VectorOrScalarConstant(parseState
, value
))
1243 if (!Parse_String(parseState
, ";"))
1244 RETURN_ERROR1("Expected ;");
1245 if (_mesa_lookup_parameter_index(parseState
->parameters
,
1246 -1, (const char *) id
) >= 0) {
1247 RETURN_ERROR2(id
, "already declared");
1249 _mesa_add_named_parameter(parseState
->parameters
,
1250 (const char *) id
, value
);
1252 else if (Parse_String(parseState
, "END")) {
1253 inst
->Opcode
= FP_OPCODE_END
;
1254 inst
->StringPos
= parseState
->curLine
- parseState
->start
;
1255 assert(inst
->StringPos
>= 0);
1256 parseState
->numInst
++;
1257 if (Parse_Token(parseState
, token
)) {
1258 RETURN_ERROR1("Code after END opcode.");
1263 /* general/arithmetic instruction */
1266 if (!Parse_Token(parseState
, token
)) {
1267 RETURN_ERROR1("Missing END instruction.");
1270 /* try to find matching instuction */
1271 instMatch
= MatchInstruction(token
);
1272 if (instMatch
.opcode
< 0) {
1273 /* bad instruction name */
1274 RETURN_ERROR2("Unexpected token: ", token
);
1277 inst
->Opcode
= instMatch
.opcode
;
1278 inst
->Precision
= instMatch
.suffixes
& (_R
| _H
| _X
);
1279 inst
->Saturate
= (instMatch
.suffixes
& (_S
)) ? GL_TRUE
: GL_FALSE
;
1280 inst
->UpdateCondRegister
= (instMatch
.suffixes
& (_C
)) ? GL_TRUE
: GL_FALSE
;
1281 inst
->StringPos
= parseState
->curLine
- parseState
->start
;
1282 assert(inst
->StringPos
>= 0);
1285 * parse the input and output operands
1287 if (instMatch
.outputs
== OUTPUT_S
|| instMatch
.outputs
== OUTPUT_V
) {
1288 if (!Parse_MaskedDstReg(parseState
, &inst
->DstReg
))
1290 if (!Parse_String(parseState
, ","))
1291 RETURN_ERROR1("Expected ,");
1293 else if (instMatch
.outputs
== OUTPUT_NONE
) {
1294 ASSERT(instMatch
.opcode
== FP_OPCODE_KIL
);
1295 /* This is a little weird, the cond code info is in the dest register */
1296 if (!Parse_CondCodeMask(parseState
, &inst
->DstReg
))
1300 if (instMatch
.inputs
== INPUT_1V
) {
1301 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1304 else if (instMatch
.inputs
== INPUT_2V
) {
1305 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1307 if (!Parse_String(parseState
, ","))
1308 RETURN_ERROR1("Expected ,");
1309 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1312 else if (instMatch
.inputs
== INPUT_3V
) {
1313 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1315 if (!Parse_String(parseState
, ","))
1316 RETURN_ERROR1("Expected ,");
1317 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1319 if (!Parse_String(parseState
, ","))
1320 RETURN_ERROR1("Expected ,");
1321 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[2]))
1324 else if (instMatch
.inputs
== INPUT_1S
) {
1325 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[0]))
1328 else if (instMatch
.inputs
== INPUT_2S
) {
1329 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[0]))
1331 if (!Parse_String(parseState
, ","))
1332 RETURN_ERROR1("Expected ,");
1333 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[1]))
1336 else if (instMatch
.inputs
== INPUT_CC
) {
1339 else if (instMatch
.inputs
== INPUT_1V_T
) {
1340 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1342 if (!Parse_String(parseState
, ","))
1343 RETURN_ERROR1("Expected ,");
1344 if (!Parse_TextureImageId(parseState
, &inst
->TexSrcUnit
,
1348 else if (instMatch
.inputs
== INPUT_3V_T
) {
1349 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1351 if (!Parse_String(parseState
, ","))
1352 RETURN_ERROR1("Expected ,");
1353 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1355 if (!Parse_String(parseState
, ","))
1356 RETURN_ERROR1("Expected ,");
1357 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[2]))
1359 if (!Parse_String(parseState
, ","))
1360 RETURN_ERROR1("Expected ,");
1361 if (!Parse_TextureImageId(parseState
, &inst
->TexSrcUnit
,
1366 /* end of statement semicolon */
1367 if (!Parse_String(parseState
, ";"))
1368 RETURN_ERROR1("Expected ;");
1370 parseState
->numInst
++;
1372 if (parseState
->numInst
>= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
)
1373 RETURN_ERROR1("Program too long");
1382 * Parse/compile the 'str' returning the compiled 'program'.
1383 * ctx->Program.ErrorPos will be -1 if successful. Otherwise, ErrorPos
1384 * indicates the position of the error in 'str'.
1387 _mesa_parse_nv_fragment_program(GLcontext
*ctx
, GLenum dstTarget
,
1388 const GLubyte
*str
, GLsizei len
,
1389 struct fragment_program
*program
)
1391 struct parse_state parseState
;
1392 struct fp_instruction instBuffer
[MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
];
1393 struct fp_instruction
*newInst
;
1395 GLubyte
*programString
;
1397 /* Make a null-terminated copy of the program string */
1398 programString
= (GLubyte
*) MALLOC(len
+ 1);
1399 if (!programString
) {
1400 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glLoadProgramNV");
1403 MEMCPY(programString
, str
, len
);
1404 programString
[len
] = 0;
1406 /* Get ready to parse */
1407 _mesa_bzero(&parseState
, sizeof(struct parse_state
));
1408 parseState
.ctx
= ctx
;
1409 parseState
.start
= programString
;
1410 parseState
.program
= program
;
1411 parseState
.numInst
= 0;
1412 parseState
.curLine
= programString
;
1413 parseState
.parameters
= _mesa_new_parameter_list();
1415 /* Reset error state */
1416 _mesa_set_program_error(ctx
, -1, NULL
);
1418 /* check the program header */
1419 if (_mesa_strncmp((const char *) programString
, "!!FP1.0", 7) == 0) {
1420 target
= GL_FRAGMENT_PROGRAM_NV
;
1421 parseState
.pos
= programString
+ 7;
1423 else if (_mesa_strncmp((const char *) programString
, "!!FCP1.0", 8) == 0) {
1424 /* fragment / register combiner program - not supported */
1425 _mesa_set_program_error(ctx
, 0, "Invalid fragment program header");
1426 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV(bad header)");
1430 /* invalid header */
1431 _mesa_set_program_error(ctx
, 0, "Invalid fragment program header");
1432 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV(bad header)");
1436 /* make sure target and header match */
1437 if (target
!= dstTarget
) {
1438 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1439 "glLoadProgramNV(target mismatch 0x%x != 0x%x)",
1444 if (Parse_InstructionSequence(&parseState
, instBuffer
)) {
1446 /* successful parse! */
1448 if (parseState
.outputsWritten
== 0) {
1449 /* must write at least one output! */
1450 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1451 "Invalid fragment program - no outputs written.");
1455 /* copy the compiled instructions */
1456 assert(parseState
.numInst
<= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
);
1457 newInst
= (struct fp_instruction
*)
1458 MALLOC(parseState
.numInst
* sizeof(struct fp_instruction
));
1460 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glLoadProgramNV");
1461 return; /* out of memory */
1463 MEMCPY(newInst
, instBuffer
,
1464 parseState
.numInst
* sizeof(struct fp_instruction
));
1466 /* install the program */
1467 program
->Base
.Target
= target
;
1468 if (program
->Base
.String
) {
1469 FREE(program
->Base
.String
);
1471 program
->Base
.String
= programString
;
1472 program
->Base
.Format
= GL_PROGRAM_FORMAT_ASCII_ARB
;
1473 if (program
->Instructions
) {
1474 FREE(program
->Instructions
);
1476 program
->Instructions
= newInst
;
1477 program
->InputsRead
= parseState
.inputsRead
;
1478 program
->OutputsWritten
= parseState
.outputsWritten
;
1479 for (u
= 0; u
< ctx
->Const
.MaxTextureImageUnits
; u
++)
1480 program
->TexturesUsed
[u
] = parseState
.texturesUsed
[u
];
1482 /* save program parameters */
1483 program
->Parameters
= parseState
.parameters
;
1485 /* allocate registers for declared program parameters */
1487 _mesa_assign_program_registers(&(program
->SymbolTable
));
1491 _mesa_printf("--- glLoadProgramNV(%d) result ---\n", program
->Base
.Id
);
1492 _mesa_print_nv_fragment_program(program
);
1493 _mesa_printf("----------------------------------\n");
1498 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV");
1499 /* NOTE: _mesa_set_program_error would have been called already */
1505 PrintSrcReg(const struct fragment_program
*program
,
1506 const struct fp_src_register
*src
)
1508 static const char comps
[5] = "xyzw";
1510 if (src
->NegateAbs
) {
1516 if (src
->NegateBase
) {
1519 if (src
->File
== PROGRAM_NAMED_PARAM
) {
1520 if (program
->Parameters
->Parameters
[src
->Index
].Type
== CONSTANT
) {
1521 printf("{%g, %g, %g, %g}",
1522 program
->Parameters
->Parameters
[src
->Index
].Values
[0],
1523 program
->Parameters
->Parameters
[src
->Index
].Values
[1],
1524 program
->Parameters
->Parameters
[src
->Index
].Values
[2],
1525 program
->Parameters
->Parameters
[src
->Index
].Values
[3]);
1528 ASSERT(program
->Parameters
->Parameters
[src
->Index
].Type
1529 == NAMED_PARAMETER
);
1530 printf("%s", program
->Parameters
->Parameters
[src
->Index
].Name
);
1533 else if (src
->File
== PROGRAM_OUTPUT
) {
1534 _mesa_printf("o[%s]", OutputRegisters
[src
->Index
]);
1536 else if (src
->File
== PROGRAM_INPUT
) {
1537 _mesa_printf("f[%s]", InputRegisters
[src
->Index
]);
1539 else if (src
->File
== PROGRAM_LOCAL_PARAM
) {
1540 _mesa_printf("p[%d]", src
->Index
);
1542 else if (src
->File
== PROGRAM_TEMPORARY
) {
1543 if (src
->Index
>= 32)
1544 _mesa_printf("H%d", src
->Index
);
1546 _mesa_printf("R%d", src
->Index
);
1548 else if (src
->File
== PROGRAM_WRITE_ONLY
) {
1549 _mesa_printf("%cC", "HR"[src
->Index
]);
1552 _mesa_problem(NULL
, "Invalid fragment register %d", src
->Index
);
1555 if (src
->Swizzle
[0] == src
->Swizzle
[1] &&
1556 src
->Swizzle
[0] == src
->Swizzle
[2] &&
1557 src
->Swizzle
[0] == src
->Swizzle
[3]) {
1558 _mesa_printf(".%c", comps
[src
->Swizzle
[0]]);
1560 else if (src
->Swizzle
[0] != 0 ||
1561 src
->Swizzle
[1] != 1 ||
1562 src
->Swizzle
[2] != 2 ||
1563 src
->Swizzle
[3] != 3) {
1564 _mesa_printf(".%c%c%c%c",
1565 comps
[src
->Swizzle
[0]],
1566 comps
[src
->Swizzle
[1]],
1567 comps
[src
->Swizzle
[2]],
1568 comps
[src
->Swizzle
[3]]);
1576 PrintTextureSrc(const struct fp_instruction
*inst
)
1578 _mesa_printf("TEX%d, ", inst
->TexSrcUnit
);
1579 switch (inst
->TexSrcBit
) {
1580 case TEXTURE_1D_BIT
:
1583 case TEXTURE_2D_BIT
:
1586 case TEXTURE_3D_BIT
:
1589 case TEXTURE_RECT_BIT
:
1590 _mesa_printf("RECT");
1592 case TEXTURE_CUBE_BIT
:
1593 _mesa_printf("CUBE");
1596 _mesa_problem(NULL
, "Invalid textue target in PrintTextureSrc");
1601 PrintCondCode(const struct fp_dst_register
*dst
)
1603 static const char *comps
= "xyzw";
1604 static const char *ccString
[] = {
1605 "??", "GT", "EQ", "LT", "UN", "GE", "LE", "NE", "TR", "FL", "??"
1608 _mesa_printf("%s", ccString
[dst
->CondMask
]);
1609 if (dst
->CondSwizzle
[0] == dst
->CondSwizzle
[1] &&
1610 dst
->CondSwizzle
[0] == dst
->CondSwizzle
[2] &&
1611 dst
->CondSwizzle
[0] == dst
->CondSwizzle
[3]) {
1612 _mesa_printf(".%c", comps
[dst
->CondSwizzle
[0]]);
1614 else if (dst
->CondSwizzle
[0] != 0 ||
1615 dst
->CondSwizzle
[1] != 1 ||
1616 dst
->CondSwizzle
[2] != 2 ||
1617 dst
->CondSwizzle
[3] != 3) {
1618 _mesa_printf(".%c%c%c%c",
1619 comps
[dst
->CondSwizzle
[0]],
1620 comps
[dst
->CondSwizzle
[1]],
1621 comps
[dst
->CondSwizzle
[2]],
1622 comps
[dst
->CondSwizzle
[3]]);
1628 PrintDstReg(const struct fp_dst_register
*dst
)
1630 GLint w
= dst
->WriteMask
[0] + dst
->WriteMask
[1]
1631 + dst
->WriteMask
[2] + dst
->WriteMask
[3];
1633 if (dst
->File
== PROGRAM_OUTPUT
) {
1634 _mesa_printf("o[%s]", OutputRegisters
[dst
->Index
]);
1636 else if (dst
->File
== PROGRAM_TEMPORARY
) {
1637 if (dst
->Index
>= 32)
1638 _mesa_printf("H%d", dst
->Index
);
1640 _mesa_printf("R%d", dst
->Index
);
1642 else if (dst
->File
== PROGRAM_LOCAL_PARAM
) {
1643 _mesa_printf("p[%d]", dst
->Index
);
1645 else if (dst
->File
== PROGRAM_WRITE_ONLY
) {
1646 _mesa_printf("%cC", "HR"[dst
->Index
]);
1649 _mesa_printf("???");
1652 if (w
!= 0 && w
!= 4) {
1654 if (dst
->WriteMask
[0])
1656 if (dst
->WriteMask
[1])
1658 if (dst
->WriteMask
[2])
1660 if (dst
->WriteMask
[3])
1664 if (dst
->CondMask
!= COND_TR
||
1665 dst
->CondSwizzle
[0] != 0 ||
1666 dst
->CondSwizzle
[1] != 1 ||
1667 dst
->CondSwizzle
[2] != 2 ||
1668 dst
->CondSwizzle
[3] != 3) {
1677 * Print (unparse) the given vertex program. Just for debugging.
1680 _mesa_print_nv_fragment_program(const struct fragment_program
*program
)
1682 const struct fp_instruction
*inst
;
1684 for (inst
= program
->Instructions
; inst
->Opcode
!= FP_OPCODE_END
; inst
++) {
1686 for (i
= 0; Instructions
[i
].name
; i
++) {
1687 if (inst
->Opcode
== Instructions
[i
].opcode
) {
1688 /* print instruction name */
1689 _mesa_printf("%s", Instructions
[i
].name
);
1690 if (inst
->Precision
== FLOAT16
)
1692 else if (inst
->Precision
== FIXED12
)
1694 if (inst
->UpdateCondRegister
)
1697 _mesa_printf("_SAT");
1700 if (Instructions
[i
].inputs
== INPUT_CC
) {
1701 PrintCondCode(&inst
->DstReg
);
1703 else if (Instructions
[i
].outputs
== OUTPUT_V
||
1704 Instructions
[i
].outputs
== OUTPUT_S
) {
1705 /* print dest register */
1706 PrintDstReg(&inst
->DstReg
);
1710 /* print source register(s) */
1711 if (Instructions
[i
].inputs
== INPUT_1V
||
1712 Instructions
[i
].inputs
== INPUT_1S
) {
1713 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1715 else if (Instructions
[i
].inputs
== INPUT_2V
||
1716 Instructions
[i
].inputs
== INPUT_2S
) {
1717 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1719 PrintSrcReg(program
, &inst
->SrcReg
[1]);
1721 else if (Instructions
[i
].inputs
== INPUT_3V
) {
1722 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1724 PrintSrcReg(program
, &inst
->SrcReg
[1]);
1726 PrintSrcReg(program
, &inst
->SrcReg
[2]);
1728 else if (Instructions
[i
].inputs
== INPUT_1V_T
) {
1729 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1731 PrintTextureSrc(inst
);
1733 else if (Instructions
[i
].inputs
== INPUT_3V_T
) {
1734 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1736 PrintSrcReg(program
, &inst
->SrcReg
[1]);
1738 PrintSrcReg(program
, &inst
->SrcReg
[2]);
1740 PrintTextureSrc(inst
);
1742 _mesa_printf(";\n");
1746 if (!Instructions
[i
].name
) {
1747 _mesa_printf("Invalid opcode %d\n", inst
->Opcode
);
1750 _mesa_printf("END\n");
1755 _mesa_nv_fragment_input_register_name(GLuint i
)
1757 ASSERT(i
< MAX_NV_FRAGMENT_PROGRAM_INPUTS
);
1758 return InputRegisters
[i
];
1763 _mesa_nv_fragment_output_register_name(GLuint i
)
1765 ASSERT(i
< MAX_NV_FRAGMENT_PROGRAM_OUTPUTS
);
1766 return OutputRegisters
[i
];