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"
44 #include "prog_parameter.h"
45 #include "prog_instruction.h"
46 #include "nvfragparse.h"
56 #define INPUT_1V_T 7 /* one source vector, plus textureId */
57 #define INPUT_3V_T 8 /* one source vector, plus textureId */
59 #define INPUT_1V_S 10 /* a string and a vector register */
62 #define OUTPUT_NONE 22
64 /* IRIX defines some of these */
71 /* Optional suffixes */
72 #define _R FLOAT32 /* float */
73 #define _H FLOAT16 /* half-float */
74 #define _X FIXED12 /* fixed */
75 #define _C 0x08 /* set cond codes */
76 #define _S 0x10 /* saturate, clamp result to [0,1] */
78 struct instruction_pattern
{
80 enum prog_opcode opcode
;
86 static const struct instruction_pattern Instructions
[] = {
87 { "ADD", OPCODE_ADD
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
88 { "COS", OPCODE_COS
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
89 { "DDX", OPCODE_DDX
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
90 { "DDY", OPCODE_DDY
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
91 { "DP3", OPCODE_DP3
, INPUT_2V
, OUTPUT_S
, _R
| _H
| _X
| _C
| _S
},
92 { "DP4", OPCODE_DP4
, INPUT_2V
, OUTPUT_S
, _R
| _H
| _X
| _C
| _S
},
93 { "DST", OPCODE_DP4
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
94 { "EX2", OPCODE_DP4
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
95 { "FLR", OPCODE_FLR
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
96 { "FRC", OPCODE_FRC
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
97 { "KIL", OPCODE_KIL_NV
, INPUT_CC
, OUTPUT_NONE
, 0 },
98 { "LG2", OPCODE_LG2
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
99 { "LIT", OPCODE_LIT
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
100 { "LRP", OPCODE_LRP
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
101 { "MAD", OPCODE_MAD
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
102 { "MAX", OPCODE_MAX
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
103 { "MIN", OPCODE_MIN
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
104 { "MOV", OPCODE_MOV
, INPUT_1V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
105 { "MUL", OPCODE_MUL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
106 { "PK2H", OPCODE_PK2H
, INPUT_1V
, OUTPUT_S
, 0 },
107 { "PK2US", OPCODE_PK2US
, INPUT_1V
, OUTPUT_S
, 0 },
108 { "PK4B", OPCODE_PK4B
, INPUT_1V
, OUTPUT_S
, 0 },
109 { "PK4UB", OPCODE_PK4UB
, INPUT_1V
, OUTPUT_S
, 0 },
110 { "POW", OPCODE_POW
, INPUT_2S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
111 { "RCP", OPCODE_RCP
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
112 { "RFL", OPCODE_RFL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
113 { "RSQ", OPCODE_RSQ
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
114 { "SEQ", OPCODE_SEQ
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
115 { "SFL", OPCODE_SFL
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
116 { "SGE", OPCODE_SGE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
117 { "SGT", OPCODE_SGT
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
118 { "SIN", OPCODE_SIN
, INPUT_1S
, OUTPUT_S
, _R
| _H
| _C
| _S
},
119 { "SLE", OPCODE_SLE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
120 { "SLT", OPCODE_SLT
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
121 { "SNE", OPCODE_SNE
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
122 { "STR", OPCODE_STR
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
123 { "SUB", OPCODE_SUB
, INPUT_2V
, OUTPUT_V
, _R
| _H
| _X
| _C
| _S
},
124 { "TEX", OPCODE_TEX
, INPUT_1V_T
, OUTPUT_V
, _C
| _S
},
125 { "TXD", OPCODE_TXD
, INPUT_3V_T
, OUTPUT_V
, _C
| _S
},
126 { "TXP", OPCODE_TXP_NV
, INPUT_1V_T
, OUTPUT_V
, _C
| _S
},
127 { "UP2H", OPCODE_UP2H
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
128 { "UP2US", OPCODE_UP2US
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
129 { "UP4B", OPCODE_UP4B
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
130 { "UP4UB", OPCODE_UP4UB
, INPUT_1S
, OUTPUT_V
, _C
| _S
},
131 { "X2D", OPCODE_X2D
, INPUT_3V
, OUTPUT_V
, _R
| _H
| _C
| _S
},
132 { "PRINT", OPCODE_PRINT
, INPUT_1V_S
, OUTPUT_NONE
, 0 },
133 { NULL
, (enum prog_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 gl_fragment_program
*program
; /* current program */
149 struct gl_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
= MAX_OPCODE
; /* i.e. invalid instruction */
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
= (GLint
)_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 prog_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
, ".")) {
695 if (!Parse_Token(parseState
, token
)) /* get xyzw suffix */
698 if (!Parse_SwizzleSuffix(token
, swz
))
699 RETURN_ERROR1("Invalid swizzle suffix");
701 dstReg
->CondSwizzle
= MAKE_SWIZZLE4(swz
[0], swz
[1], swz
[2], swz
[3]);
709 * Parse a temporary register: Rnn or Hnn
712 Parse_TempReg(struct parse_state
*parseState
, GLint
*tempRegNum
)
716 /* Should be 'R##' or 'H##' */
717 if (!Parse_Token(parseState
, token
))
719 if (token
[0] != 'R' && token
[0] != 'H')
720 RETURN_ERROR1("Expected R## or H##");
722 if (IsDigit(token
[1])) {
723 GLint reg
= _mesa_atoi((const char *) (token
+ 1));
726 if (reg
>= MAX_NV_FRAGMENT_PROGRAM_TEMPS
)
727 RETURN_ERROR1("Invalid temporary register name");
731 RETURN_ERROR1("Invalid temporary register name");
739 * Parse a write-only dummy register: RC or HC.
742 Parse_DummyReg(struct parse_state
*parseState
, GLint
*regNum
)
744 if (Parse_String(parseState
, "RC")) {
747 else if (Parse_String(parseState
, "HC")) {
751 RETURN_ERROR1("Invalid write-only register name");
759 * Parse a program local parameter register "p[##]"
762 Parse_ProgramParamReg(struct parse_state
*parseState
, GLint
*regNum
)
766 if (!Parse_String(parseState
, "p["))
767 RETURN_ERROR1("Expected p[");
769 if (!Parse_Token(parseState
, token
))
772 if (IsDigit(token
[0])) {
773 /* a numbered program parameter register */
774 GLint reg
= _mesa_atoi((const char *) token
);
775 if (reg
>= MAX_NV_FRAGMENT_PROGRAM_PARAMS
)
776 RETURN_ERROR1("Invalid constant program number");
783 if (!Parse_String(parseState
, "]"))
784 RETURN_ERROR1("Expected ]");
791 * Parse f[name] - fragment input register
794 Parse_FragReg(struct parse_state
*parseState
, GLint
*tempRegNum
)
800 if (!Parse_String(parseState
, "f["))
801 RETURN_ERROR1("Expected f[");
803 /* get <name> and look for match */
804 if (!Parse_Token(parseState
, token
)) {
807 for (j
= 0; InputRegisters
[j
]; j
++) {
808 if (_mesa_strcmp((const char *) token
, InputRegisters
[j
]) == 0) {
810 parseState
->inputsRead
|= (1 << j
);
814 if (!InputRegisters
[j
]) {
815 /* unknown input register label */
816 RETURN_ERROR2("Invalid register name", token
);
820 if (!Parse_String(parseState
, "]"))
821 RETURN_ERROR1("Expected ]");
828 Parse_OutputReg(struct parse_state
*parseState
, GLint
*outputRegNum
)
834 if (!Parse_String(parseState
, "o["))
835 RETURN_ERROR1("Expected o[");
837 /* Get output reg name */
838 if (!Parse_Token(parseState
, token
))
841 /* try to match an output register name */
842 for (j
= 0; OutputRegisters
[j
]; j
++) {
843 if (_mesa_strcmp((const char *) token
, OutputRegisters
[j
]) == 0) {
844 static GLuint bothColors
= (1 << FRAG_RESULT_COLR
) | (1 << FRAG_RESULT_COLH
);
846 parseState
->outputsWritten
|= (1 << j
);
847 if ((parseState
->outputsWritten
& bothColors
) == bothColors
) {
848 RETURN_ERROR1("Illegal to write to both o[COLR] and o[COLH]");
853 if (!OutputRegisters
[j
])
854 RETURN_ERROR1("Invalid output register name");
857 if (!Parse_String(parseState
, "]"))
858 RETURN_ERROR1("Expected ]");
865 Parse_MaskedDstReg(struct parse_state
*parseState
,
866 struct prog_dst_register
*dstReg
)
871 /* Dst reg can be R<n>, H<n>, o[n], RC or HC */
872 if (!Peek_Token(parseState
, token
))
875 if (_mesa_strcmp((const char *) token
, "RC") == 0 ||
876 _mesa_strcmp((const char *) token
, "HC") == 0) {
877 /* a write-only register */
878 dstReg
->File
= PROGRAM_WRITE_ONLY
;
879 if (!Parse_DummyReg(parseState
, &idx
))
883 else if (token
[0] == 'R' || token
[0] == 'H') {
884 /* a temporary register */
885 dstReg
->File
= PROGRAM_TEMPORARY
;
886 if (!Parse_TempReg(parseState
, &idx
))
890 else if (token
[0] == 'o') {
891 /* an output register */
892 dstReg
->File
= PROGRAM_OUTPUT
;
893 if (!Parse_OutputReg(parseState
, &idx
))
898 RETURN_ERROR1("Invalid destination register name");
901 /* Parse optional write mask */
902 if (Parse_String(parseState
, ".")) {
906 if (!Parse_Token(parseState
, token
)) /* get xyzw writemask */
909 dstReg
->WriteMask
= 0;
911 if (token
[k
] == 'x') {
912 dstReg
->WriteMask
|= WRITEMASK_X
;
915 if (token
[k
] == 'y') {
916 dstReg
->WriteMask
|= WRITEMASK_Y
;
919 if (token
[k
] == 'z') {
920 dstReg
->WriteMask
|= WRITEMASK_Z
;
923 if (token
[k
] == 'w') {
924 dstReg
->WriteMask
|= WRITEMASK_W
;
928 RETURN_ERROR1("Invalid writemask character");
933 dstReg
->WriteMask
= WRITEMASK_XYZW
;
936 /* optional condition code mask */
937 if (Parse_String(parseState
, "(")) {
938 /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".x|y|z|w) */
939 /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".[xyzw]) */
940 if (!Parse_CondCodeMask(parseState
, dstReg
))
943 if (!Parse_String(parseState
, ")")) /* consume ")" */
944 RETURN_ERROR1("Expected )");
949 /* no cond code mask */
950 dstReg
->CondMask
= COND_TR
;
951 dstReg
->CondSwizzle
= SWIZZLE_NOOP
;
958 * Parse a vector source (register, constant, etc):
959 * <vectorSrc> ::= <absVectorSrc>
961 * <absVectorSrc> ::= <negate> "|" <baseVectorSrc> "|"
964 Parse_VectorSrc(struct parse_state
*parseState
,
965 struct prog_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
= NEGATE_XYZW
;
985 else if (Parse_String(parseState
, "+"))
986 srcReg
->NegateBase
= NEGATE_NONE
;
988 srcReg
->NegateBase
= NEGATE_NONE
;
991 srcReg
->Abs
= GL_FALSE
;
992 srcReg
->NegateAbs
= GL_FALSE
;
993 srcReg
->NegateBase
= (sign
< 0.0F
) ? NEGATE_XYZW
: NEGATE_NONE
;
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
, &idx
))
1007 srcReg
->Index
= idx
;
1009 else if (token
[0] == 'f') {
1010 /* XXX this might be an identifier! */
1011 srcReg
->File
= PROGRAM_INPUT
;
1012 if (!Parse_FragReg(parseState
, &idx
))
1014 srcReg
->Index
= idx
;
1016 else if (token
[0] == 'p') {
1017 /* XXX this might be an identifier! */
1018 srcReg
->File
= PROGRAM_LOCAL_PARAM
;
1019 if (!Parse_ProgramParamReg(parseState
, &idx
))
1021 srcReg
->Index
= idx
;
1023 else if (IsLetter(token
[0])){
1026 if (!Parse_Identifier(parseState
, ident
))
1028 paramIndex
= _mesa_lookup_parameter_index(parseState
->parameters
,
1029 -1, (const char *) ident
);
1030 if (paramIndex
< 0) {
1031 RETURN_ERROR2("Undefined constant or parameter: ", ident
);
1033 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1034 srcReg
->Index
= paramIndex
;
1036 else if (IsDigit(token
[0]) || token
[0] == '-' || token
[0] == '+' || token
[0] == '.'){
1037 /* literal scalar constant */
1040 if (!Parse_ScalarConstant(parseState
, values
))
1042 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
,
1044 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1045 srcReg
->Index
= paramIndex
;
1047 else if (token
[0] == '{'){
1048 /* literal vector constant */
1051 (void) Parse_String(parseState
, "{");
1052 if (!Parse_VectorConstant(parseState
, values
))
1054 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
,
1056 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1057 srcReg
->Index
= paramIndex
;
1060 RETURN_ERROR2("Invalid source register name", token
);
1063 /* init swizzle fields */
1064 srcReg
->Swizzle
= SWIZZLE_NOOP
;
1066 /* Look for optional swizzle suffix */
1067 if (Parse_String(parseState
, ".")) {
1070 if (!Parse_Token(parseState
, token
))
1073 if (!Parse_SwizzleSuffix(token
, swz
))
1074 RETURN_ERROR1("Invalid swizzle suffix");
1076 srcReg
->Swizzle
= MAKE_SWIZZLE4(swz
[0], swz
[1], swz
[2], swz
[3]);
1079 /* Finish absolute value */
1080 if (srcReg
->Abs
&& !Parse_String(parseState
, "|")) {
1081 RETURN_ERROR1("Expected |");
1089 Parse_ScalarSrcReg(struct parse_state
*parseState
,
1090 struct prog_src_register
*srcReg
)
1093 GLfloat sign
= 1.0F
;
1094 GLboolean needSuffix
= GL_TRUE
;
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 srcReg
->NegateAbs
= (sign
< 0.0F
) ? GL_TRUE
: GL_FALSE
;
1109 if (Parse_String(parseState
, "-"))
1110 srcReg
->NegateBase
= NEGATE_XYZW
;
1111 else if (Parse_String(parseState
, "+"))
1112 srcReg
->NegateBase
= NEGATE_NONE
;
1114 srcReg
->NegateBase
= NEGATE_NONE
;
1117 srcReg
->Abs
= GL_FALSE
;
1118 srcReg
->NegateAbs
= GL_FALSE
;
1119 srcReg
->NegateBase
= (sign
< 0.0F
) ? NEGATE_XYZW
: NEGATE_NONE
;
1122 if (!Peek_Token(parseState
, token
))
1125 /* Src reg can be R<n>, H<n> or a named fragment attrib */
1126 if (token
[0] == 'R' || token
[0] == 'H') {
1127 srcReg
->File
= PROGRAM_TEMPORARY
;
1128 if (!Parse_TempReg(parseState
, &idx
))
1130 srcReg
->Index
= idx
;
1132 else if (token
[0] == 'f') {
1133 srcReg
->File
= PROGRAM_INPUT
;
1134 if (!Parse_FragReg(parseState
, &idx
))
1136 srcReg
->Index
= idx
;
1138 else if (token
[0] == '{') {
1139 /* vector literal */
1142 (void) Parse_String(parseState
, "{");
1143 if (!Parse_VectorConstant(parseState
, values
))
1145 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
,
1147 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1148 srcReg
->Index
= paramIndex
;
1150 else if (IsLetter(token
[0])){
1151 /* named param/constant */
1154 if (!Parse_Identifier(parseState
, ident
))
1156 paramIndex
= _mesa_lookup_parameter_index(parseState
->parameters
,
1157 -1, (const char *) ident
);
1158 if (paramIndex
< 0) {
1159 RETURN_ERROR2("Undefined constant or parameter: ", ident
);
1161 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1162 srcReg
->Index
= paramIndex
;
1164 else if (IsDigit(token
[0])) {
1165 /* scalar literal */
1168 if (!Parse_ScalarConstant(parseState
, values
))
1170 paramIndex
= _mesa_add_unnamed_constant(parseState
->parameters
,
1172 srcReg
->Index
= paramIndex
;
1173 srcReg
->File
= PROGRAM_NAMED_PARAM
;
1174 needSuffix
= GL_FALSE
;
1177 RETURN_ERROR2("Invalid scalar source argument", token
);
1180 srcReg
->Swizzle
= 0;
1182 /* parse .[xyzw] suffix */
1183 if (!Parse_String(parseState
, "."))
1184 RETURN_ERROR1("Expected .");
1186 if (!Parse_Token(parseState
, token
))
1189 if (token
[0] == 'x' && token
[1] == 0) {
1190 srcReg
->Swizzle
= 0;
1192 else if (token
[0] == 'y' && token
[1] == 0) {
1193 srcReg
->Swizzle
= 1;
1195 else if (token
[0] == 'z' && token
[1] == 0) {
1196 srcReg
->Swizzle
= 2;
1198 else if (token
[0] == 'w' && token
[1] == 0) {
1199 srcReg
->Swizzle
= 3;
1202 RETURN_ERROR1("Invalid scalar source suffix");
1206 /* Finish absolute value */
1207 if (srcReg
->Abs
&& !Parse_String(parseState
, "|")) {
1208 RETURN_ERROR1("Expected |");
1216 Parse_PrintInstruction(struct parse_state
*parseState
,
1217 struct prog_instruction
*inst
)
1224 /* The first argument is a literal string 'just like this' */
1225 if (!Parse_String(parseState
, "'"))
1226 RETURN_ERROR1("Expected '");
1228 str
= parseState
->pos
;
1229 for (len
= 0; str
[len
] != '\''; len
++) /* find closing quote */
1231 parseState
->pos
+= len
+ 1;
1232 msg
= (GLubyte
*) _mesa_malloc(len
+ 1);
1234 _mesa_memcpy(msg
, str
, len
);
1238 if (Parse_String(parseState
, ",")) {
1239 /* got an optional register to print */
1241 GetToken(parseState
, token
);
1242 if (token
[0] == 'o') {
1244 if (!Parse_OutputReg(parseState
, &idx
))
1246 inst
->SrcReg
[0].Index
= idx
;
1247 inst
->SrcReg
[0].File
= PROGRAM_OUTPUT
;
1251 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1256 inst
->SrcReg
[0].File
= PROGRAM_UNDEFINED
;
1259 inst
->SrcReg
[0].Swizzle
= SWIZZLE_NOOP
;
1260 inst
->SrcReg
[0].NegateBase
= NEGATE_NONE
;
1261 inst
->SrcReg
[0].Abs
= GL_FALSE
;
1262 inst
->SrcReg
[0].NegateAbs
= GL_FALSE
;
1269 Parse_InstructionSequence(struct parse_state
*parseState
,
1270 struct prog_instruction program
[])
1273 struct prog_instruction
*inst
= program
+ parseState
->numInst
;
1274 struct instruction_pattern instMatch
;
1277 /* Initialize the instruction */
1278 _mesa_init_instructions(inst
, 1);
1280 /* special instructions */
1281 if (Parse_String(parseState
, "DEFINE")) {
1283 GLfloat value
[7]; /* yes, 7 to be safe */
1284 if (!Parse_Identifier(parseState
, id
))
1286 /* XXX make sure id is not a reserved identifer, like R9 */
1287 if (!Parse_String(parseState
, "="))
1288 RETURN_ERROR1("Expected =");
1289 if (!Parse_VectorOrScalarConstant(parseState
, value
))
1291 if (!Parse_String(parseState
, ";"))
1292 RETURN_ERROR1("Expected ;");
1293 if (_mesa_lookup_parameter_index(parseState
->parameters
,
1294 -1, (const char *) id
) >= 0) {
1295 RETURN_ERROR2(id
, "already defined");
1297 _mesa_add_named_parameter(parseState
->parameters
,
1298 (const char *) id
, value
);
1300 else if (Parse_String(parseState
, "DECLARE")) {
1302 GLfloat value
[7] = {0, 0, 0, 0, 0, 0, 0}; /* yes, to be safe */
1303 if (!Parse_Identifier(parseState
, id
))
1305 /* XXX make sure id is not a reserved identifer, like R9 */
1306 if (Parse_String(parseState
, "=")) {
1307 if (!Parse_VectorOrScalarConstant(parseState
, value
))
1310 if (!Parse_String(parseState
, ";"))
1311 RETURN_ERROR1("Expected ;");
1312 if (_mesa_lookup_parameter_index(parseState
->parameters
,
1313 -1, (const char *) id
) >= 0) {
1314 RETURN_ERROR2(id
, "already declared");
1316 _mesa_add_named_parameter(parseState
->parameters
,
1317 (const char *) id
, value
);
1319 else if (Parse_String(parseState
, "END")) {
1320 inst
->Opcode
= OPCODE_END
;
1321 inst
->StringPos
= parseState
->curLine
- parseState
->start
;
1322 assert(inst
->StringPos
>= 0);
1323 parseState
->numInst
++;
1324 if (Parse_Token(parseState
, token
)) {
1325 RETURN_ERROR1("Code after END opcode.");
1330 /* general/arithmetic instruction */
1333 if (!Parse_Token(parseState
, token
)) {
1334 RETURN_ERROR1("Missing END instruction.");
1337 /* try to find matching instuction */
1338 instMatch
= MatchInstruction(token
);
1339 if (instMatch
.opcode
>= MAX_OPCODE
) {
1340 /* bad instruction name */
1341 RETURN_ERROR2("Unexpected token: ", token
);
1344 inst
->Opcode
= instMatch
.opcode
;
1345 inst
->Precision
= instMatch
.suffixes
& (_R
| _H
| _X
);
1346 inst
->SaturateMode
= (instMatch
.suffixes
& (_S
))
1347 ? SATURATE_ZERO_ONE
: SATURATE_OFF
;
1348 inst
->CondUpdate
= (instMatch
.suffixes
& (_C
)) ? GL_TRUE
: GL_FALSE
;
1349 inst
->StringPos
= parseState
->curLine
- parseState
->start
;
1350 assert(inst
->StringPos
>= 0);
1353 * parse the input and output operands
1355 if (instMatch
.outputs
== OUTPUT_S
|| instMatch
.outputs
== OUTPUT_V
) {
1356 if (!Parse_MaskedDstReg(parseState
, &inst
->DstReg
))
1358 if (!Parse_String(parseState
, ","))
1359 RETURN_ERROR1("Expected ,");
1361 else if (instMatch
.outputs
== OUTPUT_NONE
) {
1362 if (instMatch
.opcode
== OPCODE_KIL_NV
) {
1363 /* This is a little weird, the cond code info is in
1364 * the dest register.
1366 if (!Parse_CondCodeMask(parseState
, &inst
->DstReg
))
1370 ASSERT(instMatch
.opcode
== OPCODE_PRINT
);
1374 if (instMatch
.inputs
== INPUT_1V
) {
1375 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1378 else if (instMatch
.inputs
== INPUT_2V
) {
1379 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1381 if (!Parse_String(parseState
, ","))
1382 RETURN_ERROR1("Expected ,");
1383 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1386 else if (instMatch
.inputs
== INPUT_3V
) {
1387 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1389 if (!Parse_String(parseState
, ","))
1390 RETURN_ERROR1("Expected ,");
1391 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1393 if (!Parse_String(parseState
, ","))
1394 RETURN_ERROR1("Expected ,");
1395 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[2]))
1398 else if (instMatch
.inputs
== INPUT_1S
) {
1399 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[0]))
1402 else if (instMatch
.inputs
== INPUT_2S
) {
1403 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[0]))
1405 if (!Parse_String(parseState
, ","))
1406 RETURN_ERROR1("Expected ,");
1407 if (!Parse_ScalarSrcReg(parseState
, &inst
->SrcReg
[1]))
1410 else if (instMatch
.inputs
== INPUT_CC
) {
1413 else if (instMatch
.inputs
== INPUT_1V_T
) {
1415 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1417 if (!Parse_String(parseState
, ","))
1418 RETURN_ERROR1("Expected ,");
1419 if (!Parse_TextureImageId(parseState
, &unit
, &idx
))
1421 inst
->TexSrcUnit
= unit
;
1422 inst
->TexSrcTarget
= idx
;
1424 else if (instMatch
.inputs
== INPUT_3V_T
) {
1426 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[0]))
1428 if (!Parse_String(parseState
, ","))
1429 RETURN_ERROR1("Expected ,");
1430 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[1]))
1432 if (!Parse_String(parseState
, ","))
1433 RETURN_ERROR1("Expected ,");
1434 if (!Parse_VectorSrc(parseState
, &inst
->SrcReg
[2]))
1436 if (!Parse_String(parseState
, ","))
1437 RETURN_ERROR1("Expected ,");
1438 if (!Parse_TextureImageId(parseState
, &unit
, &idx
))
1440 inst
->TexSrcUnit
= unit
;
1441 inst
->TexSrcTarget
= idx
;
1443 else if (instMatch
.inputs
== INPUT_1V_S
) {
1444 if (!Parse_PrintInstruction(parseState
, inst
))
1448 /* end of statement semicolon */
1449 if (!Parse_String(parseState
, ";"))
1450 RETURN_ERROR1("Expected ;");
1452 parseState
->numInst
++;
1454 if (parseState
->numInst
>= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
)
1455 RETURN_ERROR1("Program too long");
1464 * Parse/compile the 'str' returning the compiled 'program'.
1465 * ctx->Program.ErrorPos will be -1 if successful. Otherwise, ErrorPos
1466 * indicates the position of the error in 'str'.
1469 _mesa_parse_nv_fragment_program(GLcontext
*ctx
, GLenum dstTarget
,
1470 const GLubyte
*str
, GLsizei len
,
1471 struct gl_fragment_program
*program
)
1473 struct parse_state parseState
;
1474 struct prog_instruction instBuffer
[MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
];
1475 struct prog_instruction
*newInst
;
1477 GLubyte
*programString
;
1479 /* Make a null-terminated copy of the program string */
1480 programString
= (GLubyte
*) MALLOC(len
+ 1);
1481 if (!programString
) {
1482 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glLoadProgramNV");
1485 MEMCPY(programString
, str
, len
);
1486 programString
[len
] = 0;
1488 /* Get ready to parse */
1489 _mesa_bzero(&parseState
, sizeof(struct parse_state
));
1490 parseState
.ctx
= ctx
;
1491 parseState
.start
= programString
;
1492 parseState
.program
= program
;
1493 parseState
.numInst
= 0;
1494 parseState
.curLine
= programString
;
1495 parseState
.parameters
= _mesa_new_parameter_list();
1497 /* Reset error state */
1498 _mesa_set_program_error(ctx
, -1, NULL
);
1500 /* check the program header */
1501 if (_mesa_strncmp((const char *) programString
, "!!FP1.0", 7) == 0) {
1502 target
= GL_FRAGMENT_PROGRAM_NV
;
1503 parseState
.pos
= programString
+ 7;
1505 else if (_mesa_strncmp((const char *) programString
, "!!FCP1.0", 8) == 0) {
1506 /* fragment / register combiner program - not supported */
1507 _mesa_set_program_error(ctx
, 0, "Invalid fragment program header");
1508 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV(bad header)");
1512 /* invalid header */
1513 _mesa_set_program_error(ctx
, 0, "Invalid fragment program header");
1514 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV(bad header)");
1518 /* make sure target and header match */
1519 if (target
!= dstTarget
) {
1520 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1521 "glLoadProgramNV(target mismatch 0x%x != 0x%x)",
1526 if (Parse_InstructionSequence(&parseState
, instBuffer
)) {
1528 /* successful parse! */
1530 if (parseState
.outputsWritten
== 0) {
1531 /* must write at least one output! */
1532 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1533 "Invalid fragment program - no outputs written.");
1537 /* copy the compiled instructions */
1538 assert(parseState
.numInst
<= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
);
1539 newInst
= _mesa_alloc_instructions(parseState
.numInst
);
1541 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glLoadProgramNV");
1542 return; /* out of memory */
1544 _mesa_copy_instructions(newInst
, instBuffer
, parseState
.numInst
);
1546 /* install the program */
1547 program
->Base
.Target
= target
;
1548 if (program
->Base
.String
) {
1549 FREE(program
->Base
.String
);
1551 program
->Base
.String
= programString
;
1552 program
->Base
.Format
= GL_PROGRAM_FORMAT_ASCII_ARB
;
1553 if (program
->Base
.Instructions
) {
1554 _mesa_free(program
->Base
.Instructions
);
1556 program
->Base
.Instructions
= newInst
;
1557 program
->Base
.NumInstructions
= parseState
.numInst
;
1558 program
->Base
.InputsRead
= parseState
.inputsRead
;
1559 program
->Base
.OutputsWritten
= parseState
.outputsWritten
;
1560 for (u
= 0; u
< ctx
->Const
.MaxTextureImageUnits
; u
++)
1561 program
->Base
.TexturesUsed
[u
] = parseState
.texturesUsed
[u
];
1563 /* save program parameters */
1564 program
->Base
.Parameters
= parseState
.parameters
;
1566 /* allocate registers for declared program parameters */
1568 _mesa_assign_program_registers(&(program
->SymbolTable
));
1572 _mesa_printf("--- glLoadProgramNV(%d) result ---\n", program
->Base
.Id
);
1573 _mesa_print_nv_fragment_program(program
);
1574 _mesa_printf("----------------------------------\n");
1579 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glLoadProgramNV");
1580 /* NOTE: _mesa_set_program_error would have been called already */
1586 PrintSrcReg(const struct gl_fragment_program
*program
,
1587 const struct prog_src_register
*src
)
1589 static const char comps
[5] = "xyzw";
1591 if (src
->NegateAbs
) {
1597 if (src
->NegateBase
) {
1600 if (src
->File
== PROGRAM_NAMED_PARAM
) {
1601 if (program
->Base
.Parameters
->Parameters
[src
->Index
].Type
1602 == PROGRAM_CONSTANT
) {
1604 v
= program
->Base
.Parameters
->ParameterValues
[src
->Index
];
1605 _mesa_printf("{%g, %g, %g, %g}", v
[0], v
[1], v
[2], v
[3]);
1608 ASSERT(program
->Base
.Parameters
->Parameters
[src
->Index
].Type
1609 == PROGRAM_NAMED_PARAM
);
1610 _mesa_printf("%s", program
->Base
.Parameters
->Parameters
[src
->Index
].Name
);
1613 else if (src
->File
== PROGRAM_OUTPUT
) {
1614 _mesa_printf("o[%s]", OutputRegisters
[src
->Index
]);
1616 else if (src
->File
== PROGRAM_INPUT
) {
1617 _mesa_printf("f[%s]", InputRegisters
[src
->Index
]);
1619 else if (src
->File
== PROGRAM_LOCAL_PARAM
) {
1620 _mesa_printf("p[%d]", src
->Index
);
1622 else if (src
->File
== PROGRAM_TEMPORARY
) {
1623 if (src
->Index
>= 32)
1624 _mesa_printf("H%d", src
->Index
);
1626 _mesa_printf("R%d", src
->Index
);
1628 else if (src
->File
== PROGRAM_WRITE_ONLY
) {
1629 _mesa_printf("%cC", "HR"[src
->Index
]);
1632 _mesa_problem(NULL
, "Invalid fragment register %d", src
->Index
);
1635 if (GET_SWZ(src
->Swizzle
, 0) == GET_SWZ(src
->Swizzle
, 1) &&
1636 GET_SWZ(src
->Swizzle
, 0) == GET_SWZ(src
->Swizzle
, 2) &&
1637 GET_SWZ(src
->Swizzle
, 0) == GET_SWZ(src
->Swizzle
, 3)) {
1638 _mesa_printf(".%c", comps
[GET_SWZ(src
->Swizzle
, 0)]);
1640 else if (src
->Swizzle
!= SWIZZLE_NOOP
) {
1641 _mesa_printf(".%c%c%c%c",
1642 comps
[GET_SWZ(src
->Swizzle
, 0)],
1643 comps
[GET_SWZ(src
->Swizzle
, 1)],
1644 comps
[GET_SWZ(src
->Swizzle
, 2)],
1645 comps
[GET_SWZ(src
->Swizzle
, 3)]);
1653 PrintTextureSrc(const struct prog_instruction
*inst
)
1655 _mesa_printf("TEX%d, ", inst
->TexSrcUnit
);
1656 switch (inst
->TexSrcTarget
) {
1657 case TEXTURE_1D_INDEX
:
1660 case TEXTURE_2D_INDEX
:
1663 case TEXTURE_3D_INDEX
:
1666 case TEXTURE_RECT_INDEX
:
1667 _mesa_printf("RECT");
1669 case TEXTURE_CUBE_INDEX
:
1670 _mesa_printf("CUBE");
1673 _mesa_problem(NULL
, "Invalid textue target in PrintTextureSrc");
1678 PrintCondCode(const struct prog_dst_register
*dst
)
1680 static const char *comps
= "xyzw";
1681 static const char *ccString
[] = {
1682 "??", "GT", "EQ", "LT", "UN", "GE", "LE", "NE", "TR", "FL", "??"
1685 _mesa_printf("%s", ccString
[dst
->CondMask
]);
1686 if (GET_SWZ(dst
->CondSwizzle
, 0) == GET_SWZ(dst
->CondSwizzle
, 1) &&
1687 GET_SWZ(dst
->CondSwizzle
, 0) == GET_SWZ(dst
->CondSwizzle
, 2) &&
1688 GET_SWZ(dst
->CondSwizzle
, 0) == GET_SWZ(dst
->CondSwizzle
, 3)) {
1689 _mesa_printf(".%c", comps
[GET_SWZ(dst
->CondSwizzle
, 0)]);
1691 else if (dst
->CondSwizzle
!= SWIZZLE_NOOP
) {
1692 _mesa_printf(".%c%c%c%c",
1693 comps
[GET_SWZ(dst
->CondSwizzle
, 0)],
1694 comps
[GET_SWZ(dst
->CondSwizzle
, 1)],
1695 comps
[GET_SWZ(dst
->CondSwizzle
, 2)],
1696 comps
[GET_SWZ(dst
->CondSwizzle
, 3)]);
1702 PrintDstReg(const struct prog_dst_register
*dst
)
1704 if (dst
->File
== PROGRAM_OUTPUT
) {
1705 _mesa_printf("o[%s]", OutputRegisters
[dst
->Index
]);
1707 else if (dst
->File
== PROGRAM_TEMPORARY
) {
1708 if (dst
->Index
>= 32)
1709 _mesa_printf("H%d", dst
->Index
);
1711 _mesa_printf("R%d", dst
->Index
);
1713 else if (dst
->File
== PROGRAM_LOCAL_PARAM
) {
1714 _mesa_printf("p[%d]", dst
->Index
);
1716 else if (dst
->File
== PROGRAM_WRITE_ONLY
) {
1717 _mesa_printf("%cC", "HR"[dst
->Index
]);
1720 _mesa_printf("???");
1723 if (dst
->WriteMask
!= 0 && dst
->WriteMask
!= WRITEMASK_XYZW
) {
1725 if (dst
->WriteMask
& WRITEMASK_X
)
1727 if (dst
->WriteMask
& WRITEMASK_Y
)
1729 if (dst
->WriteMask
& WRITEMASK_Z
)
1731 if (dst
->WriteMask
& WRITEMASK_W
)
1735 if (dst
->CondMask
!= COND_TR
||
1736 dst
->CondSwizzle
!= SWIZZLE_NOOP
) {
1745 * Print (unparse) the given vertex program. Just for debugging.
1748 _mesa_print_nv_fragment_program(const struct gl_fragment_program
*program
)
1750 const struct prog_instruction
*inst
;
1752 for (inst
= program
->Base
.Instructions
; inst
->Opcode
!= OPCODE_END
; inst
++) {
1754 for (i
= 0; Instructions
[i
].name
; i
++) {
1755 if (inst
->Opcode
== Instructions
[i
].opcode
) {
1756 /* print instruction name */
1757 _mesa_printf("%s", Instructions
[i
].name
);
1758 if (inst
->Precision
== FLOAT16
)
1760 else if (inst
->Precision
== FIXED12
)
1762 if (inst
->CondUpdate
)
1764 if (inst
->SaturateMode
== SATURATE_ZERO_ONE
)
1765 _mesa_printf("_SAT");
1768 if (Instructions
[i
].inputs
== INPUT_CC
) {
1769 PrintCondCode(&inst
->DstReg
);
1771 else if (Instructions
[i
].outputs
== OUTPUT_V
||
1772 Instructions
[i
].outputs
== OUTPUT_S
) {
1773 /* print dest register */
1774 PrintDstReg(&inst
->DstReg
);
1778 /* print source register(s) */
1779 if (Instructions
[i
].inputs
== INPUT_1V
||
1780 Instructions
[i
].inputs
== INPUT_1S
) {
1781 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1783 else if (Instructions
[i
].inputs
== INPUT_2V
||
1784 Instructions
[i
].inputs
== INPUT_2S
) {
1785 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1787 PrintSrcReg(program
, &inst
->SrcReg
[1]);
1789 else if (Instructions
[i
].inputs
== INPUT_3V
) {
1790 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1792 PrintSrcReg(program
, &inst
->SrcReg
[1]);
1794 PrintSrcReg(program
, &inst
->SrcReg
[2]);
1796 else if (Instructions
[i
].inputs
== INPUT_1V_T
) {
1797 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1799 PrintTextureSrc(inst
);
1801 else if (Instructions
[i
].inputs
== INPUT_3V_T
) {
1802 PrintSrcReg(program
, &inst
->SrcReg
[0]);
1804 PrintSrcReg(program
, &inst
->SrcReg
[1]);
1806 PrintSrcReg(program
, &inst
->SrcReg
[2]);
1808 PrintTextureSrc(inst
);
1810 _mesa_printf(";\n");
1814 if (!Instructions
[i
].name
) {
1815 _mesa_printf("Invalid opcode %d\n", inst
->Opcode
);
1818 _mesa_printf("END\n");
1823 _mesa_nv_fragment_input_register_name(GLuint i
)
1825 ASSERT(i
< MAX_NV_FRAGMENT_PROGRAM_INPUTS
);
1826 return InputRegisters
[i
];
1831 _mesa_nv_fragment_output_register_name(GLuint i
)
1833 ASSERT(i
< MAX_NV_FRAGMENT_PROGRAM_OUTPUTS
);
1834 return OutputRegisters
[i
];