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.
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.
40 #include "main/glheader.h"
41 #include "main/context.h"
42 #include "main/imports.h"
43 #include "main/macros.h"
45 #include "prog_parameter.h"
46 #include "prog_print.h"
47 #include "prog_instruction.h"
48 #include "nvfragparse.h"
57 #define INPUT_1V_T 7 /* one source vector, plus textureId */
58 #define INPUT_3V_T 8 /* one source vector, plus textureId */
60 #define INPUT_1V_S 10 /* a string and a vector register */
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 prog_opcode opcode
;
87 static const struct instruction_pattern Instructions
[] = {
88 { "ADD", OPCODE_ADD
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
89 { "COS", OPCODE_COS
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
90 { "DDX", OPCODE_DDX
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
91 { "DDY", OPCODE_DDY
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
92 { "DP3", OPCODE_DP3
, INPUT_2V
, OUTPUT_S
, _R
| _H
| _X
| _C
| _S
},
93 { "DP4", OPCODE_DP4
, INPUT_2V
, OUTPUT_S
, _R
| _H
| _X
| _C
| _S
},
94 { "DST", OPCODE_DP4
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
95 { "EX2", OPCODE_DP4
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
96 { "FLR", OPCODE_FLR
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
97 { "FRC", OPCODE_FRC
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
98 { "KIL", OPCODE_KIL_NV
, INPUT_CC
, OUTPUT_NONE
, 0 },
99 { "LG2", OPCODE_LG2
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
100 { "LIT", OPCODE_LIT
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
101 { "LRP", OPCODE_LRP
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
102 { "MAD", OPCODE_MAD
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
103 { "MAX", OPCODE_MAX
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
104 { "MIN", OPCODE_MIN
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
105 { "MOV", OPCODE_MOV
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
106 { "MUL", OPCODE_MUL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
107 { "PK2H", OPCODE_PK2H
, INPUT_1V
, OUTPUT_S
, 0 },
108 { "PK2US", OPCODE_PK2US
, INPUT_1V
, OUTPUT_S
, 0 },
109 { "PK4B", OPCODE_PK4B
, INPUT_1V
, OUTPUT_S
, 0 },
110 { "PK4UB", OPCODE_PK4UB
, INPUT_1V
, OUTPUT_S
, 0 },
111 { "POW", OPCODE_POW
, INPUT_2S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
112 { "RCP", OPCODE_RCP
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
113 { "RFL", OPCODE_RFL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
114 { "RSQ", OPCODE_RSQ
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
115 { "SEQ", OPCODE_SEQ
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
116 { "SFL", OPCODE_SFL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
117 { "SGE", OPCODE_SGE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
118 { "SGT", OPCODE_SGT
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
119 { "SIN", OPCODE_SIN
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
120 { "SLE", OPCODE_SLE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
121 { "SLT", OPCODE_SLT
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
122 { "SNE", OPCODE_SNE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
123 { "STR", OPCODE_STR
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
124 { "SUB", OPCODE_SUB
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
125 { "TEX", OPCODE_TEX
, INPUT_1V_T
, OUTPUT_V
, _C
| _S
},
126 { "TXD", OPCODE_TXD
, INPUT_3V_T
, OUTPUT_V
, _C
| _S
},
127 { "TXP", OPCODE_TXP_NV
, INPUT_1V_T
, OUTPUT_V
, _C
| _S
},
128 { "UP2H", OPCODE_UP2H
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
129 { "UP2US", OPCODE_UP2US
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
130 { "UP4B", OPCODE_UP4B
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
131 { "UP4UB", OPCODE_UP4UB
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
132 { "X2D", OPCODE_X2D
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
133 { "PRINT", OPCODE_PRINT
, INPUT_1V_S
, OUTPUT_NONE
, 0 },
134 { NULL
, (enum prog_opcode
) -1, 0, 0, 0 }
139 * Information needed or computed during parsing.
140 * Remember, we can't modify the target program object until we've
141 * _successfully_ parsed the program text.
145 const GLubyte
*start
; /* start of program string */
146 const GLubyte
*pos
; /* current position */
147 const GLubyte
*curLine
;
148 struct gl_fragment_program
*program
; /* current program */
150 struct gl_program_parameter_list
*parameters
;
152 GLuint numInst
; /* number of instructions parsed */
153 GLuint inputsRead
; /* bitmask of input registers used */
154 GLuint outputsWritten
; /* bitmask of 1 << FRAG_OUTPUT_* bits */
155 GLuint texturesUsed
[MAX_TEXTURE_IMAGE_UNITS
];
161 * Called whenever we find an error during parsing.
164 record_error(struct parse_state
*parseState
, const char *msg
, int lineNo
)
168 const GLubyte
*lineStr
;
169 lineStr
= _mesa_find_line_column(parseState
->start
,
170 parseState
->pos
, &line
, &column
);
171 _mesa_debug(parseState
->ctx
,
172 "nvfragparse.c(%d): line %d, column %d:%s (%s)\n",
173 lineNo
, line
, column
, (char *) lineStr
, msg
);
174 _mesa_free((void *) lineStr
);
179 /* Check that no error was already recorded. Only record the first one. */
180 if (parseState
->ctx
->Program
.ErrorString
[0] == 0) {
181 _mesa_set_program_error(parseState
->ctx
,
182 parseState
->pos
- parseState
->start
,
188 #define RETURN_ERROR \
190 record_error(parseState, "Unexpected end of input.", __LINE__); \
194 #define RETURN_ERROR1(msg) \
196 record_error(parseState, msg, __LINE__); \
200 #define RETURN_ERROR2(msg1, msg2) \
203 _mesa_sprintf(err, "%s %s", msg1, msg2); \
204 record_error(parseState, err, __LINE__); \
212 * Search a list of instruction structures for a match.
214 static struct instruction_pattern
215 MatchInstruction(const GLubyte
*token
)
217 const struct instruction_pattern
*inst
;
218 struct instruction_pattern result
;
221 result
.opcode
= MAX_OPCODE
; /* i.e. invalid instruction */
226 for (inst
= Instructions
; inst
->name
; inst
++) {
227 if (strncmp((const char *) token
, inst
->name
, 3) == 0) {
233 if (token
[i
] == 'R') {
234 result
.suffixes
|= _R
;
237 else if (token
[i
] == 'H') {
238 result
.suffixes
|= _H
;
241 else if (token
[i
] == 'X') {
242 result
.suffixes
|= _X
;
245 if (token
[i
] == 'C') {
246 result
.suffixes
|= _C
;
249 if (token
[i
] == '_' && token
[i
+1] == 'S' &&
250 token
[i
+2] == 'A' && token
[i
+3] == 'T') {
251 result
.suffixes
|= _S
;
263 /**********************************************************************/
266 static GLboolean
IsLetter(GLubyte b
)
268 return (b
>= 'a' && b
<= 'z') ||
269 (b
>= 'A' && b
<= 'Z') ||
275 static GLboolean
IsDigit(GLubyte b
)
277 return b
>= '0' && b
<= '9';
281 static GLboolean
IsWhitespace(GLubyte b
)
283 return b
== ' ' || b
== '\t' || b
== '\n' || b
== '\r';
288 * Starting at 'str' find the next token. A token can be an integer,
289 * an identifier or punctuation symbol.
290 * \return <= 0 we found an error, else, return number of characters parsed.
293 GetToken(struct parse_state
*parseState
, GLubyte
*token
)
295 const GLubyte
*str
= parseState
->pos
;
300 /* skip whitespace and comments */
301 while (str
[i
] && (IsWhitespace(str
[i
]) || str
[i
] == '#')) {
304 while (str
[i
] && (str
[i
] != '\n' && str
[i
] != '\r')) {
307 if (str
[i
] == '\n' || str
[i
] == '\r')
308 parseState
->curLine
= str
+ i
+ 1;
311 /* skip whitespace */
312 if (str
[i
] == '\n' || str
[i
] == '\r')
313 parseState
->curLine
= str
+ i
+ 1;
321 /* try matching an integer */
322 while (str
[i
] && IsDigit(str
[i
])) {
323 token
[j
++] = str
[i
++];
325 if (j
> 0 || !str
[i
]) {
330 /* try matching an identifier */
331 if (IsLetter(str
[i
])) {
332 while (str
[i
] && (IsLetter(str
[i
]) || IsDigit(str
[i
]))) {
333 token
[j
++] = str
[i
++];
339 /* punctuation character */
353 * Get next token from input stream and increment stream pointer past token.
356 Parse_Token(struct parse_state
*parseState
, GLubyte
*token
)
359 i
= GetToken(parseState
, token
);
361 parseState
->pos
+= (-i
);
364 parseState
->pos
+= i
;
370 * Get next token from input stream but don't increment stream pointer.
373 Peek_Token(struct parse_state
*parseState
, GLubyte
*token
)
376 i
= GetToken(parseState
, token
);
378 parseState
->pos
+= (-i
);
381 len
= (GLint
) strlen((const char *) token
);
382 parseState
->pos
+= (i
- len
);
387 /**********************************************************************/
389 static const char *InputRegisters
[MAX_NV_FRAGMENT_PROGRAM_INPUTS
+ 1] = {
390 "WPOS", "COL0", "COL1", "FOGC",
391 "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", NULL
396 /**********************************************************************/
399 * Try to match 'pattern' as the next token after any whitespace/comments.
402 Parse_String(struct parse_state
*parseState
, const char *pattern
)
407 /* skip whitespace and comments */
408 while (IsWhitespace(*parseState
->pos
) || *parseState
->pos
== '#') {
409 if (*parseState
->pos
== '#') {
410 while (*parseState
->pos
&& (*parseState
->pos
!= '\n' && *parseState
->pos
!= '\r')) {
411 parseState
->pos
+= 1;
413 if (*parseState
->pos
== '\n' || *parseState
->pos
== '\r')
414 parseState
->curLine
= parseState
->pos
+ 1;
417 /* skip whitespace */
418 if (*parseState
->pos
== '\n' || *parseState
->pos
== '\r')
419 parseState
->curLine
= parseState
->pos
+ 1;
420 parseState
->pos
+= 1;
424 /* Try to match the pattern */
426 for (i
= 0; pattern
[i
]; i
++) {
427 if (*m
!= (GLubyte
) pattern
[i
])
433 return GL_TRUE
; /* success */
438 Parse_Identifier(struct parse_state
*parseState
, GLubyte
*ident
)
440 if (!Parse_Token(parseState
, ident
))
442 if (IsLetter(ident
[0]))
445 RETURN_ERROR1("Expected an identfier");
450 * Parse a floating point constant, or a defined symbol name.
452 * Output: number[0 .. 3] will get the value.
455 Parse_ScalarConstant(struct parse_state
*parseState
, GLfloat
*number
)
459 *number
= (GLfloat
) _mesa_strtod((const char *) parseState
->pos
, &end
);
461 if (end
&& end
> (char *) parseState
->pos
) {
463 parseState
->pos
= (GLubyte
*) end
;
470 /* should be an identifier */
472 const GLfloat
*constant
;
473 if (!Parse_Identifier(parseState
, ident
))
474 RETURN_ERROR1("Expected an identifier");
475 constant
= _mesa_lookup_parameter_value(parseState
->parameters
,
476 -1, (const char *) ident
);
477 /* XXX Check that it's a constant and not a parameter */
479 RETURN_ERROR1("Undefined symbol");
482 COPY_4V(number
, constant
);
491 * Parse a vector constant, one of:
494 * { float, float, float }
495 * { float, float, float, float }
498 Parse_VectorConstant(struct parse_state
*parseState
, GLfloat
*vec
)
500 /* "{" was already consumed */
502 ASSIGN_4V(vec
, 0.0, 0.0, 0.0, 1.0);
504 if (!Parse_ScalarConstant(parseState
, vec
+0)) /* X */
507 if (Parse_String(parseState
, "}")) {
511 if (!Parse_String(parseState
, ","))
512 RETURN_ERROR1("Expected comma in vector constant");
514 if (!Parse_ScalarConstant(parseState
, vec
+1)) /* Y */
517 if (Parse_String(parseState
, "}")) {
521 if (!Parse_String(parseState
, ","))
522 RETURN_ERROR1("Expected comma in vector constant");
524 if (!Parse_ScalarConstant(parseState
, vec
+2)) /* Z */
527 if (Parse_String(parseState
, "}")) {
531 if (!Parse_String(parseState
, ","))
532 RETURN_ERROR1("Expected comma in vector constant");
534 if (!Parse_ScalarConstant(parseState
, vec
+3)) /* W */
537 if (!Parse_String(parseState
, "}"))
538 RETURN_ERROR1("Expected closing brace in vector constant");
545 * Parse <number>, <varname> or {a, b, c, d}.
546 * Return number of values in the vector or scalar, or zero if parse error.
549 Parse_VectorOrScalarConstant(struct parse_state
*parseState
, GLfloat
*vec
)
551 if (Parse_String(parseState
, "{")) {
552 return Parse_VectorConstant(parseState
, vec
);
555 GLboolean b
= Parse_ScalarConstant(parseState
, vec
);
557 vec
[1] = vec
[2] = vec
[3] = vec
[0];
565 * Parse a texture image source:
566 * [TEX0 | TEX1 | .. | TEX15] , [1D | 2D | 3D | CUBE | RECT]
569 Parse_TextureImageId(struct parse_state
*parseState
,
570 GLubyte
*texUnit
, GLubyte
*texTargetBit
)
572 GLubyte imageSrc
[100];
575 if (!Parse_Token(parseState
, imageSrc
))
578 if (imageSrc
[0] != 'T' ||
579 imageSrc
[1] != 'E' ||
580 imageSrc
[2] != 'X') {
581 RETURN_ERROR1("Expected TEX# source");
583 unit
= atoi((const char *) imageSrc
+ 3);
584 if ((unit
< 0 || unit
> MAX_TEXTURE_IMAGE_UNITS
) ||
585 (unit
== 0 && (imageSrc
[3] != '0' || imageSrc
[4] != 0))) {
586 RETURN_ERROR1("Invalied TEX# source index");
590 if (!Parse_String(parseState
, ","))
591 RETURN_ERROR1("Expected ,");
593 if (Parse_String(parseState
, "1D")) {
594 *texTargetBit
= TEXTURE_1D_BIT
;
596 else if (Parse_String(parseState
, "2D")) {
597 *texTargetBit
= TEXTURE_2D_BIT
;
599 else if (Parse_String(parseState
, "3D")) {
600 *texTargetBit
= TEXTURE_3D_BIT
;
602 else if (Parse_String(parseState
, "CUBE")) {
603 *texTargetBit
= TEXTURE_CUBE_BIT
;
605 else if (Parse_String(parseState
, "RECT")) {
606 *texTargetBit
= TEXTURE_RECT_BIT
;
609 RETURN_ERROR1("Invalid texture target token");
612 /* update record of referenced texture units */
613 parseState
->texturesUsed
[*texUnit
] |= *texTargetBit
;
614 if (_mesa_bitcount(parseState
->texturesUsed
[*texUnit
]) > 1) {
615 RETURN_ERROR1("Only one texture target can be used per texture unit.");
623 * Parse a scalar suffix like .x, .y, .z or .w or parse a swizzle suffix
624 * like .wxyz, .xxyy, etc and return the swizzle indexes.
627 Parse_SwizzleSuffix(const GLubyte
*token
, GLuint swizzle
[4])
630 /* single letter swizzle (scalar) */
632 ASSIGN_4V(swizzle
, 0, 0, 0, 0);
633 else if (token
[0] == 'y')
634 ASSIGN_4V(swizzle
, 1, 1, 1, 1);
635 else if (token
[0] == 'z')
636 ASSIGN_4V(swizzle
, 2, 2, 2, 2);
637 else if (token
[0] == 'w')
638 ASSIGN_4V(swizzle
, 3, 3, 3, 3);
643 /* 4-component swizzle (vector) */
645 for (k
= 0; k
< 4 && token
[k
]; k
++) {
648 else if (token
[k
] == 'y')
650 else if (token
[k
] == 'z')
652 else if (token
[k
] == 'w')
665 Parse_CondCodeMask(struct parse_state
*parseState
,
666 struct prog_dst_register
*dstReg
)
668 if (Parse_String(parseState
, "EQ"))
669 dstReg
->CondMask
= COND_EQ
;
670 else if (Parse_String(parseState
, "GE"))
671 dstReg
->CondMask
= COND_GE
;
672 else if (Parse_String(parseState
, "GT"))
673 dstReg
->CondMask
= COND_GT
;
674 else if (Parse_String(parseState
, "LE"))
675 dstReg
->CondMask
= COND_LE
;
676 else if (Parse_String(parseState
, "LT"))
677 dstReg
->CondMask
= COND_LT
;
678 else if (Parse_String(parseState
, "NE"))
679 dstReg
->CondMask
= COND_NE
;
680 else if (Parse_String(parseState
, "TR"))
681 dstReg
->CondMask
= COND_TR
;
682 else if (Parse_String(parseState
, "FL"))
683 dstReg
->CondMask
= COND_FL
;
685 RETURN_ERROR1("Invalid condition code mask");
687 /* look for optional .xyzw swizzle */
688 if (Parse_String(parseState
, ".")) {
692 if (!Parse_Token(parseState
, token
)) /* get xyzw suffix */
695 if (!Parse_SwizzleSuffix(token
, swz
))
696 RETURN_ERROR1("Invalid swizzle suffix");
698 dstReg
->CondSwizzle
= MAKE_SWIZZLE4(swz
[0], swz
[1], swz
[2], swz
[3]);
706 * Parse a temporary register: Rnn or Hnn
709 Parse_TempReg(struct parse_state
*parseState
, GLint
*tempRegNum
)
713 /* Should be 'R##' or 'H##' */
714 if (!Parse_Token(parseState
, token
))
716 if (token
[0] != 'R' && token
[0] != 'H')
717 RETURN_ERROR1("Expected R## or H##");
719 if (IsDigit(token
[1])) {
720 GLint reg
= atoi((const char *) (token
+ 1));
723 if (reg
>= MAX_NV_FRAGMENT_PROGRAM_TEMPS
)
724 RETURN_ERROR1("Invalid temporary register name");
728 RETURN_ERROR1("Invalid temporary register name");
736 * Parse a write-only dummy register: RC or HC.
739 Parse_DummyReg(struct parse_state
*parseState
, GLint
*regNum
)
741 if (Parse_String(parseState
, "RC")) {
744 else if (Parse_String(parseState
, "HC")) {
748 RETURN_ERROR1("Invalid write-only register name");
756 * Parse a program local parameter register "p[##]"
759 Parse_ProgramParamReg(struct parse_state
*parseState
, GLint
*regNum
)
763 if (!Parse_String(parseState
, "p["))
764 RETURN_ERROR1("Expected p[");
766 if (!Parse_Token(parseState
, token
))
769 if (IsDigit(token
[0])) {
770 /* a numbered program parameter register */
771 GLint reg
= atoi((const char *) token
);
772 if (reg
>= MAX_NV_FRAGMENT_PROGRAM_PARAMS
)
773 RETURN_ERROR1("Invalid constant program number");
780 if (!Parse_String(parseState
, "]"))
781 RETURN_ERROR1("Expected ]");
788 * Parse f[name] - fragment input register
791 Parse_FragReg(struct parse_state
*parseState
, GLint
*tempRegNum
)
797 if (!Parse_String(parseState
, "f["))
798 RETURN_ERROR1("Expected f[");
800 /* get <name> and look for match */
801 if (!Parse_Token(parseState
, token
)) {
804 for (j
= 0; InputRegisters
[j
]; j
++) {
805 if (strcmp((const char *) token
, InputRegisters
[j
]) == 0) {
807 parseState
->inputsRead
|= (1 << j
);
811 if (!InputRegisters
[j
]) {
812 /* unknown input register label */
813 RETURN_ERROR2("Invalid register name", token
);
817 if (!Parse_String(parseState
, "]"))
818 RETURN_ERROR1("Expected ]");
825 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 if (strcmp((char *) token
, "COLR") == 0 ||
839 strcmp((char *) token
, "COLH") == 0) {
840 /* note that we don't distinguish between COLR and COLH */
841 *outputRegNum
= FRAG_RESULT_COLOR
;
842 parseState
->outputsWritten
|= (1 << FRAG_RESULT_COLOR
);
844 else if (strcmp((char *) token
, "DEPR") == 0) {
845 *outputRegNum
= FRAG_RESULT_DEPTH
;
846 parseState
->outputsWritten
|= (1 << FRAG_RESULT_DEPTH
);
849 RETURN_ERROR1("Invalid output register name");
853 if (!Parse_String(parseState
, "]"))
854 RETURN_ERROR1("Expected ]");
861 Parse_MaskedDstReg(struct parse_state
*parseState
,
862 struct prog_dst_register
*dstReg
)
867 /* Dst reg can be R<n>, H<n>, o[n], RC or HC */
868 if (!Peek_Token(parseState
, token
))
871 if (strcmp((const char *) token
, "RC") == 0 ||
872 strcmp((const char *) token
, "HC") == 0) {
873 /* a write-only register */
874 dstReg
->File
= PROGRAM_WRITE_ONLY
;
875 if (!Parse_DummyReg(parseState
, &idx
))
879 else if (token
[0] == 'R' || token
[0] == 'H') {
880 /* a temporary register */
881 dstReg
->File
= PROGRAM_TEMPORARY
;
882 if (!Parse_TempReg(parseState
, &idx
))
886 else if (token
[0] == 'o') {
887 /* an output register */
888 dstReg
->File
= PROGRAM_OUTPUT
;
889 if (!Parse_OutputReg(parseState
, &idx
))
894 RETURN_ERROR1("Invalid destination register name");
897 /* Parse optional write mask */
898 if (Parse_String(parseState
, ".")) {
902 if (!Parse_Token(parseState
, token
)) /* get xyzw writemask */
905 dstReg
->WriteMask
= 0;
907 if (token
[k
] == 'x') {
908 dstReg
->WriteMask
|= WRITEMASK_X
;
911 if (token
[k
] == 'y') {
912 dstReg
->WriteMask
|= WRITEMASK_Y
;
915 if (token
[k
] == 'z') {
916 dstReg
->WriteMask
|= WRITEMASK_Z
;
919 if (token
[k
] == 'w') {
920 dstReg
->WriteMask
|= WRITEMASK_W
;
924 RETURN_ERROR1("Invalid writemask character");
929 dstReg
->WriteMask
= WRITEMASK_XYZW
;
932 /* optional condition code mask */
933 if (Parse_String(parseState
, "(")) {
934 /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".x|y|z|w) */
935 /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".[xyzw]) */
936 if (!Parse_CondCodeMask(parseState
, dstReg
))
939 if (!Parse_String(parseState
, ")")) /* consume ")" */
940 RETURN_ERROR1("Expected )");
945 /* no cond code mask */
946 dstReg
->CondMask
= COND_TR
;
947 dstReg
->CondSwizzle
= SWIZZLE_NOOP
;
954 * Parse a vector source (register, constant, etc):
955 * <vectorSrc> ::= <absVectorSrc>
957 * <absVectorSrc> ::= <negate> "|" <baseVectorSrc> "|"
960 Parse_VectorSrc(struct parse_state
*parseState
,
961 struct prog_src_register
*srcReg
)
966 GLuint negateBase
, negateAbs
;
969 * First, take care of +/- and absolute value stuff.
971 if (Parse_String(parseState
, "-"))
973 else if (Parse_String(parseState
, "+"))
976 if (Parse_String(parseState
, "|")) {
977 srcReg
->Abs
= GL_TRUE
;
978 negateAbs
= (sign
< 0.0F
) ? NEGATE_XYZW
: NEGATE_NONE
;
980 if (Parse_String(parseState
, "-"))
981 negateBase
= NEGATE_XYZW
;
982 else if (Parse_String(parseState
, "+"))
983 negateBase
= NEGATE_NONE
;
985 negateBase
= NEGATE_NONE
;
988 srcReg
->Abs
= GL_FALSE
;
989 negateAbs
= NEGATE_NONE
;
990 negateBase
= (sign
< 0.0F
) ? NEGATE_XYZW
: NEGATE_NONE
;
993 srcReg
->Negate
= srcReg
->Abs
? negateAbs
: negateBase
;
995 /* This should be the real src vector/register name */
996 if (!Peek_Token(parseState
, token
))
999 /* Src reg can be Rn, Hn, f[n], p[n], a named parameter, a scalar
1000 * literal or vector literal.
1002 if (token
[0] == 'R' || token
[0] == 'H') {
1003 srcReg
->File
= PROGRAM_TEMPORARY
;
1004 if (!Parse_TempReg(parseState
, &idx
))
1006 srcReg
->Index
= idx
;
1008 else if (token
[0] == 'f') {
1009 /* XXX this might be an identifier! */
1010 srcReg
->File
= PROGRAM_INPUT
;
1011 if (!Parse_FragReg(parseState
, &idx
))
1013 srcReg
->Index
= idx
;
1015 else if (token
[0] == 'p') {
1016 /* XXX this might be an identifier! */
1017 srcReg
->File
= PROGRAM_LOCAL_PARAM
;
1018 if (!Parse_ProgramParamReg(parseState
, &idx
))
1020 srcReg
->Index
= idx
;
1022 else if (IsLetter(token
[0])){
1025 if (!Parse_Identifier(parseState
, ident
))
1027 paramIndex
= _mesa_lookup_parameter_index(parseState
->parameters
,
1028 -1, (const char *) ident
);
1029 if (paramIndex
< 0) {
1030 RETURN_ERROR2("Undefined constant or parameter: ", ident
);
1032 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1033 srcReg
->Index
= paramIndex
;
1035 else if (IsDigit(token
[0]) || token
[0] == '-' || token
[0] == '+' || token
[0] == '.'){
1036 /* literal scalar constant */
1039 if (!Parse_ScalarConstant(parseState
, values
))
1041 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
,
1043 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1044 srcReg
->Index
= paramIndex
;
1046 else if (token
[0] == '{'){
1047 /* literal vector constant */
1050 (void) Parse_String(parseState
, "{");
1051 if (!Parse_VectorConstant(parseState
, values
))
1053 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
,
1055 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1056 srcReg
->Index
= paramIndex
;
1059 RETURN_ERROR2("Invalid source register name", token
);
1062 /* init swizzle fields */
1063 srcReg
->Swizzle
= SWIZZLE_NOOP
;
1065 /* Look for optional swizzle suffix */
1066 if (Parse_String(parseState
, ".")) {
1069 if (!Parse_Token(parseState
, token
))
1072 if (!Parse_SwizzleSuffix(token
, swz
))
1073 RETURN_ERROR1("Invalid swizzle suffix");
1075 srcReg
->Swizzle
= MAKE_SWIZZLE4(swz
[0], swz
[1], swz
[2], swz
[3]);
1078 /* Finish absolute value */
1079 if (srcReg
->Abs
&& !Parse_String(parseState
, "|")) {
1080 RETURN_ERROR1("Expected |");
1088 Parse_ScalarSrcReg(struct parse_state
*parseState
,
1089 struct prog_src_register
*srcReg
)
1092 GLfloat sign
= 1.0F
;
1093 GLboolean needSuffix
= GL_TRUE
;
1095 GLuint negateBase
, negateAbs
;
1098 * First, take care of +/- and absolute value stuff.
1100 if (Parse_String(parseState
, "-"))
1102 else if (Parse_String(parseState
, "+"))
1105 if (Parse_String(parseState
, "|")) {
1106 srcReg
->Abs
= GL_TRUE
;
1107 negateAbs
= (sign
< 0.0F
) ? NEGATE_XYZW
: NEGATE_NONE
;
1109 if (Parse_String(parseState
, "-"))
1110 negateBase
= NEGATE_XYZW
;
1111 else if (Parse_String(parseState
, "+"))
1112 negateBase
= NEGATE_NONE
;
1114 negateBase
= NEGATE_NONE
;
1117 srcReg
->Abs
= GL_FALSE
;
1118 negateAbs
= NEGATE_NONE
;
1119 negateBase
= (sign
< 0.0F
) ? NEGATE_XYZW
: NEGATE_NONE
;
1122 srcReg
->Negate
= srcReg
->Abs
? negateAbs
: negateBase
;
1124 if (!Peek_Token(parseState
, token
))
1127 /* Src reg can be R<n>, H<n> or a named fragment attrib */
1128 if (token
[0] == 'R' || token
[0] == 'H') {
1129 srcReg
->File
= PROGRAM_TEMPORARY
;
1130 if (!Parse_TempReg(parseState
, &idx
))
1132 srcReg
->Index
= idx
;
1134 else if (token
[0] == 'f') {
1135 srcReg
->File
= PROGRAM_INPUT
;
1136 if (!Parse_FragReg(parseState
, &idx
))
1138 srcReg
->Index
= idx
;
1140 else if (token
[0] == '{') {
1141 /* vector literal */
1144 (void) Parse_String(parseState
, "{");
1145 if (!Parse_VectorConstant(parseState
, values
))
1147 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
,
1149 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1150 srcReg
->Index
= paramIndex
;
1152 else if (IsLetter(token
[0])){
1153 /* named param/constant */
1156 if (!Parse_Identifier(parseState
, ident
))
1158 paramIndex
= _mesa_lookup_parameter_index(parseState
->parameters
,
1159 -1, (const char *) ident
);
1160 if (paramIndex
< 0) {
1161 RETURN_ERROR2("Undefined constant or parameter: ", ident
);
1163 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1164 srcReg
->Index
= paramIndex
;
1166 else if (IsDigit(token
[0])) {
1167 /* scalar literal */
1170 if (!Parse_ScalarConstant(parseState
, values
))
1172 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
,
1174 srcReg
->Index
= paramIndex
;
1175 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1176 needSuffix
= GL_FALSE
;
1179 RETURN_ERROR2("Invalid scalar source argument", token
);
1182 srcReg
->Swizzle
= 0;
1184 /* parse .[xyzw] suffix */
1185 if (!Parse_String(parseState
, "."))
1186 RETURN_ERROR1("Expected .");
1188 if (!Parse_Token(parseState
, token
))
1191 if (token
[0] == 'x' && token
[1] == 0) {
1192 srcReg
->Swizzle
= 0;
1194 else if (token
[0] == 'y' && token
[1] == 0) {
1195 srcReg
->Swizzle
= 1;
1197 else if (token
[0] == 'z' && token
[1] == 0) {
1198 srcReg
->Swizzle
= 2;
1200 else if (token
[0] == 'w' && token
[1] == 0) {
1201 srcReg
->Swizzle
= 3;
1204 RETURN_ERROR1("Invalid scalar source suffix");
1208 /* Finish absolute value */
1209 if (srcReg
->Abs
&& !Parse_String(parseState
, "|")) {
1210 RETURN_ERROR1("Expected |");
1218 Parse_PrintInstruction(struct parse_state
*parseState
,
1219 struct prog_instruction
*inst
)
1226 /* The first argument is a literal string 'just like this' */
1227 if (!Parse_String(parseState
, "'"))
1228 RETURN_ERROR1("Expected '");
1230 str
= parseState
->pos
;
1231 for (len
= 0; str
[len
] != '\''; len
++) /* find closing quote */
1233 parseState
->pos
+= len
+ 1;
1234 msg
= (GLubyte
*) _mesa_malloc(len
+ 1);
1236 _mesa_memcpy(msg
, str
, len
);
1240 if (Parse_String(parseState
, ",")) {
1241 /* got an optional register to print */
1243 GetToken(parseState
, token
);
1244 if (token
[0] == 'o') {
1246 if (!Parse_OutputReg(parseState
, &idx
))
1248 inst
->SrcReg
[0].Index
= idx
;
1249 inst
->SrcReg
[0].File
= PROGRAM_OUTPUT
;
1253 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1258 inst
->SrcReg
[0].File
= PROGRAM_UNDEFINED
;
1261 inst
->SrcReg
[0].Swizzle
= SWIZZLE_NOOP
;
1262 inst
->SrcReg
[0].Abs
= GL_FALSE
;
1263 inst
->SrcReg
[0].Negate
= NEGATE_NONE
;
1270 Parse_InstructionSequence(struct parse_state
*parseState
,
1271 struct prog_instruction program
[])
1274 struct prog_instruction
*inst
= program
+ parseState
->numInst
;
1275 struct instruction_pattern instMatch
;
1278 /* Initialize the instruction */
1279 _mesa_init_instructions(inst
, 1);
1281 /* special instructions */
1282 if (Parse_String(parseState
, "DEFINE")) {
1284 GLfloat value
[7]; /* yes, 7 to be safe */
1285 if (!Parse_Identifier(parseState
, id
))
1287 /* XXX make sure id is not a reserved identifer, like R9 */
1288 if (!Parse_String(parseState
, "="))
1289 RETURN_ERROR1("Expected =");
1290 if (!Parse_VectorOrScalarConstant(parseState
, value
))
1292 if (!Parse_String(parseState
, ";"))
1293 RETURN_ERROR1("Expected ;");
1294 if (_mesa_lookup_parameter_index(parseState
->parameters
,
1295 -1, (const char *) id
) >= 0) {
1296 RETURN_ERROR2(id
, "already defined");
1298 _mesa_add_named_parameter(parseState
->parameters
,
1299 (const char *) id
, value
);
1301 else if (Parse_String(parseState
, "DECLARE")) {
1303 GLfloat value
[7] = {0, 0, 0, 0, 0, 0, 0}; /* yes, to be safe */
1304 if (!Parse_Identifier(parseState
, id
))
1306 /* XXX make sure id is not a reserved identifer, like R9 */
1307 if (Parse_String(parseState
, "=")) {
1308 if (!Parse_VectorOrScalarConstant(parseState
, value
))
1311 if (!Parse_String(parseState
, ";"))
1312 RETURN_ERROR1("Expected ;");
1313 if (_mesa_lookup_parameter_index(parseState
->parameters
,
1314 -1, (const char *) id
) >= 0) {
1315 RETURN_ERROR2(id
, "already declared");
1317 _mesa_add_named_parameter(parseState
->parameters
,
1318 (const char *) id
, value
);
1320 else if (Parse_String(parseState
, "END")) {
1321 inst
->Opcode
= OPCODE_END
;
1322 parseState
->numInst
++;
1323 if (Parse_Token(parseState
, token
)) {
1324 RETURN_ERROR1("Code after END opcode.");
1329 /* general/arithmetic instruction */
1332 if (!Parse_Token(parseState
, token
)) {
1333 RETURN_ERROR1("Missing END instruction.");
1336 /* try to find matching instuction */
1337 instMatch
= MatchInstruction(token
);
1338 if (instMatch
.opcode
>= MAX_OPCODE
) {
1339 /* bad instruction name */
1340 RETURN_ERROR2("Unexpected token: ", token
);
1343 inst
->Opcode
= instMatch
.opcode
;
1344 inst
->Precision
= instMatch
.suffixes
& (_R
| _H
| _X
);
1345 inst
->SaturateMode
= (instMatch
.suffixes
& (_S
))
1346 ? SATURATE_ZERO_ONE
: SATURATE_OFF
;
1347 inst
->CondUpdate
= (instMatch
.suffixes
& (_C
)) ? GL_TRUE
: GL_FALSE
;
1350 * parse the input and output operands
1352 if (instMatch
.outputs
== OUTPUT_S
|| instMatch
.outputs
== OUTPUT_V
) {
1353 if (!Parse_MaskedDstReg(parseState
, &inst
->DstReg
))
1355 if (!Parse_String(parseState
, ","))
1356 RETURN_ERROR1("Expected ,");
1358 else if (instMatch
.outputs
== OUTPUT_NONE
) {
1359 if (instMatch
.opcode
== OPCODE_KIL_NV
) {
1360 /* This is a little weird, the cond code info is in
1361 * the dest register.
1363 if (!Parse_CondCodeMask(parseState
, &inst
->DstReg
))
1367 ASSERT(instMatch
.opcode
== OPCODE_PRINT
);
1371 if (instMatch
.inputs
== INPUT_1V
) {
1372 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1375 else if (instMatch
.inputs
== INPUT_2V
) {
1376 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1378 if (!Parse_String(parseState
, ","))
1379 RETURN_ERROR1("Expected ,");
1380 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1383 else if (instMatch
.inputs
== INPUT_3V
) {
1384 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1386 if (!Parse_String(parseState
, ","))
1387 RETURN_ERROR1("Expected ,");
1388 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1390 if (!Parse_String(parseState
, ","))
1391 RETURN_ERROR1("Expected ,");
1392 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[2]))
1395 else if (instMatch
.inputs
== INPUT_1S
) {
1396 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[0]))
1399 else if (instMatch
.inputs
== INPUT_2S
) {
1400 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[0]))
1402 if (!Parse_String(parseState
, ","))
1403 RETURN_ERROR1("Expected ,");
1404 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[1]))
1407 else if (instMatch
.inputs
== INPUT_CC
) {
1410 else if (instMatch
.inputs
== INPUT_1V_T
) {
1412 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1414 if (!Parse_String(parseState
, ","))
1415 RETURN_ERROR1("Expected ,");
1416 if (!Parse_TextureImageId(parseState
, &unit
, &idx
))
1418 inst
->TexSrcUnit
= unit
;
1419 inst
->TexSrcTarget
= idx
;
1421 else if (instMatch
.inputs
== INPUT_3V_T
) {
1423 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1425 if (!Parse_String(parseState
, ","))
1426 RETURN_ERROR1("Expected ,");
1427 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1429 if (!Parse_String(parseState
, ","))
1430 RETURN_ERROR1("Expected ,");
1431 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[2]))
1433 if (!Parse_String(parseState
, ","))
1434 RETURN_ERROR1("Expected ,");
1435 if (!Parse_TextureImageId(parseState
, &unit
, &idx
))
1437 inst
->TexSrcUnit
= unit
;
1438 inst
->TexSrcTarget
= idx
;
1440 else if (instMatch
.inputs
== INPUT_1V_S
) {
1441 if (!Parse_PrintInstruction(parseState
, inst
))
1445 /* end of statement semicolon */
1446 if (!Parse_String(parseState
, ";"))
1447 RETURN_ERROR1("Expected ;");
1449 parseState
->numInst
++;
1451 if (parseState
->numInst
>= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
)
1452 RETURN_ERROR1("Program too long");
1461 * Parse/compile the 'str' returning the compiled 'program'.
1462 * ctx->Program.ErrorPos will be -1 if successful. Otherwise, ErrorPos
1463 * indicates the position of the error in 'str'.
1466 _mesa_parse_nv_fragment_program(GLcontext
*ctx
, GLenum dstTarget
,
1467 const GLubyte
*str
, GLsizei len
,
1468 struct gl_fragment_program
*program
)
1470 struct parse_state parseState
;
1471 struct prog_instruction instBuffer
[MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
];
1472 struct prog_instruction
*newInst
;
1474 GLubyte
*programString
;
1476 /* Make a null-terminated copy of the program string */
1477 programString
= (GLubyte
*) MALLOC(len
+ 1);
1478 if (!programString
) {
1479 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glLoadProgramNV");
1482 MEMCPY(programString
, str
, len
);
1483 programString
[len
] = 0;
1485 /* Get ready to parse */
1486 _mesa_bzero(&parseState
, sizeof(struct parse_state
));
1487 parseState
.ctx
= ctx
;
1488 parseState
.start
= programString
;
1489 parseState
.program
= program
;
1490 parseState
.numInst
= 0;
1491 parseState
.curLine
= programString
;
1492 parseState
.parameters
= _mesa_new_parameter_list();
1494 /* Reset error state */
1495 _mesa_set_program_error(ctx
, -1, NULL
);
1497 /* check the program header */
1498 if (strncmp((const char *) programString
, "!!FP1.0", 7) == 0) {
1499 target
= GL_FRAGMENT_PROGRAM_NV
;
1500 parseState
.pos
= programString
+ 7;
1502 else if (strncmp((const char *) programString
, "!!FCP1.0", 8) == 0) {
1503 /* fragment / register combiner program - not supported */
1504 _mesa_set_program_error(ctx
, 0, "Invalid fragment program header");
1505 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV(bad header)");
1509 /* invalid header */
1510 _mesa_set_program_error(ctx
, 0, "Invalid fragment program header");
1511 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV(bad header)");
1515 /* make sure target and header match */
1516 if (target
!= dstTarget
) {
1517 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1518 "glLoadProgramNV(target mismatch 0x%x != 0x%x)",
1523 if (Parse_InstructionSequence(&parseState
, instBuffer
)) {
1525 /* successful parse! */
1527 if (parseState
.outputsWritten
== 0) {
1528 /* must write at least one output! */
1529 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1530 "Invalid fragment program - no outputs written.");
1534 /* copy the compiled instructions */
1535 assert(parseState
.numInst
<= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
);
1536 newInst
= _mesa_alloc_instructions(parseState
.numInst
);
1538 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glLoadProgramNV");
1539 return; /* out of memory */
1541 _mesa_copy_instructions(newInst
, instBuffer
, parseState
.numInst
);
1543 /* install the program */
1544 program
->Base
.Target
= target
;
1545 if (program
->Base
.String
) {
1546 FREE(program
->Base
.String
);
1548 program
->Base
.String
= programString
;
1549 program
->Base
.Format
= GL_PROGRAM_FORMAT_ASCII_ARB
;
1550 if (program
->Base
.Instructions
) {
1551 _mesa_free(program
->Base
.Instructions
);
1553 program
->Base
.Instructions
= newInst
;
1554 program
->Base
.NumInstructions
= parseState
.numInst
;
1555 program
->Base
.InputsRead
= parseState
.inputsRead
;
1556 program
->Base
.OutputsWritten
= parseState
.outputsWritten
;
1557 for (u
= 0; u
< ctx
->Const
.MaxTextureImageUnits
; u
++)
1558 program
->Base
.TexturesUsed
[u
] = parseState
.texturesUsed
[u
];
1560 /* save program parameters */
1561 program
->Base
.Parameters
= parseState
.parameters
;
1563 /* allocate registers for declared program parameters */
1565 _mesa_assign_program_registers(&(program
->SymbolTable
));
1569 _mesa_printf("--- glLoadProgramNV(%d) result ---\n", program
->Base
.Id
);
1570 _mesa_fprint_program_opt(stdout
, &program
->Base
, PROG_PRINT_NV
, 0);
1571 _mesa_printf("----------------------------------\n");
1576 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV");
1577 /* NOTE: _mesa_set_program_error would have been called already */
1583 _mesa_nv_fragment_input_register_name(GLuint i
)
1585 ASSERT(i
< MAX_NV_FRAGMENT_PROGRAM_INPUTS
);
1586 return InputRegisters
[i
];