1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "util/u_debug.h"
29 #include "util/u_memory.h"
30 #include "util/u_prim.h"
31 #include "pipe/p_defines.h"
32 #include "util/u_inlines.h"
33 #include "tgsi_text.h"
34 #include "tgsi_build.h"
35 #include "tgsi_info.h"
36 #include "tgsi_parse.h"
37 #include "tgsi_sanity.h"
38 #include "tgsi_strings.h"
39 #include "tgsi_util.h"
40 #include "tgsi_dump.h"
42 static boolean
is_alpha_underscore( const char *cur
)
45 (*cur
>= 'a' && *cur
<= 'z') ||
46 (*cur
>= 'A' && *cur
<= 'Z') ||
50 static boolean
is_digit( const char *cur
)
52 return *cur
>= '0' && *cur
<= '9';
55 static boolean
is_digit_alpha_underscore( const char *cur
)
57 return is_digit( cur
) || is_alpha_underscore( cur
);
60 static char uprcase( char c
)
62 if (c
>= 'a' && c
<= 'z')
68 * Ignore case of str1 and assume str1 is already uppercase.
69 * Return TRUE iff str1 and str2 are equal.
72 streq_nocase_uprcase(const char *str1
,
75 while (*str1
&& *str2
) {
76 if (*str1
!= uprcase(*str2
))
81 return *str1
== 0 && *str2
== 0;
84 /* Return TRUE if both strings match.
85 * The second string is terminated by zero.
86 * The pointer to the first string is moved at end of the read word
89 static boolean
str_match_no_case( const char **pcur
, const char *str
)
91 const char *cur
= *pcur
;
93 while (*str
!= '\0' && *str
== uprcase( *cur
)) {
104 /* Return TRUE if both strings match.
105 * The first string is be terminated by a non-digit non-letter non-underscore
106 * character, the second string is terminated by zero.
107 * The pointer to the first string is moved at end of the read word
110 static boolean
str_match_nocase_whole( const char **pcur
, const char *str
)
112 const char *cur
= *pcur
;
114 if (str_match_no_case(&cur
, str
) &&
115 !is_digit_alpha_underscore(cur
)) {
122 /* Eat zero or more whitespaces.
124 static void eat_opt_white( const char **pcur
)
126 while (**pcur
== ' ' || **pcur
== '\t' || **pcur
== '\n')
130 /* Eat one or more whitespaces.
131 * Return TRUE if at least one whitespace eaten.
133 static boolean
eat_white( const char **pcur
)
135 const char *cur
= *pcur
;
137 eat_opt_white( pcur
);
141 /* Parse unsigned integer.
142 * No checks for overflow.
144 static boolean
parse_uint( const char **pcur
, uint
*val
)
146 const char *cur
= *pcur
;
148 if (is_digit( cur
)) {
150 while (is_digit( cur
))
151 *val
= *val
* 10 + *cur
++ - '0';
158 static boolean
parse_int( const char **pcur
, int *val
)
160 const char *cur
= *pcur
;
161 int sign
= (*cur
== '-' ? -1 : 1);
163 if (*cur
== '+' || *cur
== '-')
166 if (parse_uint(&cur
, (uint
*)val
)) {
175 static boolean
parse_identifier( const char **pcur
, char *ret
)
177 const char *cur
= *pcur
;
179 if (is_alpha_underscore( cur
)) {
181 while (is_alpha_underscore( cur
) || is_digit( cur
))
190 /* Parse floating point.
192 static boolean
parse_float( const char **pcur
, float *val
)
194 const char *cur
= *pcur
;
195 boolean integral_part
= FALSE
;
196 boolean fractional_part
= FALSE
;
198 *val
= (float) atof( cur
);
200 if (*cur
== '-' || *cur
== '+')
202 if (is_digit( cur
)) {
204 integral_part
= TRUE
;
205 while (is_digit( cur
))
210 if (is_digit( cur
)) {
212 fractional_part
= TRUE
;
213 while (is_digit( cur
))
217 if (!integral_part
&& !fractional_part
)
219 if (uprcase( *cur
) == 'E') {
221 if (*cur
== '-' || *cur
== '+')
223 if (is_digit( cur
)) {
225 while (is_digit( cur
))
239 struct tgsi_token
*tokens
;
240 struct tgsi_token
*tokens_cur
;
241 struct tgsi_token
*tokens_end
;
242 struct tgsi_header
*header
;
243 unsigned processor
: 4;
244 int implied_array_size
: 5;
245 unsigned num_immediates
;
248 static void report_error( struct translate_ctx
*ctx
, const char *msg
)
252 const char *itr
= ctx
->text
;
254 while (itr
!= ctx
->cur
) {
263 debug_printf( "\nTGSI asm error: %s [%d : %d] \n", msg
, line
, column
);
266 /* Parse shader header.
267 * Return TRUE for one of the following headers.
272 static boolean
parse_header( struct translate_ctx
*ctx
)
276 if (str_match_nocase_whole( &ctx
->cur
, "FRAG" ))
277 processor
= TGSI_PROCESSOR_FRAGMENT
;
278 else if (str_match_nocase_whole( &ctx
->cur
, "VERT" ))
279 processor
= TGSI_PROCESSOR_VERTEX
;
280 else if (str_match_nocase_whole( &ctx
->cur
, "GEOM" ))
281 processor
= TGSI_PROCESSOR_GEOMETRY
;
282 else if (str_match_nocase_whole( &ctx
->cur
, "COMP" ))
283 processor
= TGSI_PROCESSOR_COMPUTE
;
285 report_error( ctx
, "Unknown header" );
289 if (ctx
->tokens_cur
>= ctx
->tokens_end
)
291 ctx
->header
= (struct tgsi_header
*) ctx
->tokens_cur
++;
292 *ctx
->header
= tgsi_build_header();
294 if (ctx
->tokens_cur
>= ctx
->tokens_end
)
296 *(struct tgsi_processor
*) ctx
->tokens_cur
++ = tgsi_build_processor( processor
, ctx
->header
);
297 ctx
->processor
= processor
;
302 static boolean
parse_label( struct translate_ctx
*ctx
, uint
*val
)
304 const char *cur
= ctx
->cur
;
306 if (parse_uint( &cur
, val
)) {
307 eat_opt_white( &cur
);
318 parse_file( const char **pcur
, uint
*file
)
322 for (i
= 0; i
< TGSI_FILE_COUNT
; i
++) {
323 const char *cur
= *pcur
;
325 if (str_match_nocase_whole( &cur
, tgsi_file_names
[i
] )) {
336 struct translate_ctx
*ctx
,
342 eat_opt_white( &cur
);
345 *writemask
= TGSI_WRITEMASK_NONE
;
346 eat_opt_white( &cur
);
347 if (uprcase( *cur
) == 'X') {
349 *writemask
|= TGSI_WRITEMASK_X
;
351 if (uprcase( *cur
) == 'Y') {
353 *writemask
|= TGSI_WRITEMASK_Y
;
355 if (uprcase( *cur
) == 'Z') {
357 *writemask
|= TGSI_WRITEMASK_Z
;
359 if (uprcase( *cur
) == 'W') {
361 *writemask
|= TGSI_WRITEMASK_W
;
364 if (*writemask
== TGSI_WRITEMASK_NONE
) {
365 report_error( ctx
, "Writemask expected" );
372 *writemask
= TGSI_WRITEMASK_XYZW
;
378 /* <register_file_bracket> ::= <file> `['
381 parse_register_file_bracket(
382 struct translate_ctx
*ctx
,
385 if (!parse_file( &ctx
->cur
, file
)) {
386 report_error( ctx
, "Unknown register file" );
389 eat_opt_white( &ctx
->cur
);
390 if (*ctx
->cur
!= '[') {
391 report_error( ctx
, "Expected `['" );
398 /* <register_file_bracket_index> ::= <register_file_bracket> <uint>
401 parse_register_file_bracket_index(
402 struct translate_ctx
*ctx
,
408 if (!parse_register_file_bracket( ctx
, file
))
410 eat_opt_white( &ctx
->cur
);
411 if (!parse_uint( &ctx
->cur
, &uindex
)) {
412 report_error( ctx
, "Expected literal unsigned integer" );
415 *index
= (int) uindex
;
419 /* Parse simple 1d register operand.
420 * <register_dst> ::= <register_file_bracket_index> `]'
423 parse_register_1d(struct translate_ctx
*ctx
,
427 if (!parse_register_file_bracket_index( ctx
, file
, index
))
429 eat_opt_white( &ctx
->cur
);
430 if (*ctx
->cur
!= ']') {
431 report_error( ctx
, "Expected `]'" );
438 struct parsed_bracket
{
448 parse_register_bracket(
449 struct translate_ctx
*ctx
,
450 struct parsed_bracket
*brackets
)
455 memset(brackets
, 0, sizeof(struct parsed_bracket
));
457 eat_opt_white( &ctx
->cur
);
460 if (parse_file( &cur
, &brackets
->ind_file
)) {
461 if (!parse_register_1d( ctx
, &brackets
->ind_file
,
462 &brackets
->ind_index
))
464 eat_opt_white( &ctx
->cur
);
466 if (*ctx
->cur
== '.') {
468 eat_opt_white(&ctx
->cur
);
470 switch (uprcase(*ctx
->cur
)) {
472 brackets
->ind_comp
= TGSI_SWIZZLE_X
;
475 brackets
->ind_comp
= TGSI_SWIZZLE_Y
;
478 brackets
->ind_comp
= TGSI_SWIZZLE_Z
;
481 brackets
->ind_comp
= TGSI_SWIZZLE_W
;
484 report_error(ctx
, "Expected indirect register swizzle component `x', `y', `z' or `w'");
488 eat_opt_white(&ctx
->cur
);
491 if (*ctx
->cur
== '+' || *ctx
->cur
== '-')
492 parse_int( &ctx
->cur
, &brackets
->index
);
497 if (!parse_uint( &ctx
->cur
, &uindex
)) {
498 report_error( ctx
, "Expected literal unsigned integer" );
501 brackets
->index
= (int) uindex
;
502 brackets
->ind_file
= TGSI_FILE_NULL
;
503 brackets
->ind_index
= 0;
505 eat_opt_white( &ctx
->cur
);
506 if (*ctx
->cur
!= ']') {
507 report_error( ctx
, "Expected `]'" );
515 parse_opt_register_src_bracket(
516 struct translate_ctx
*ctx
,
517 struct parsed_bracket
*brackets
,
518 int *parsed_brackets
)
520 const char *cur
= ctx
->cur
;
522 *parsed_brackets
= 0;
524 eat_opt_white( &cur
);
529 if (!parse_register_bracket(ctx
, brackets
))
532 *parsed_brackets
= 1;
539 /* Parse source register operand.
540 * <register_src> ::= <register_file_bracket_index> `]' |
541 * <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `]' |
542 * <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `+' <uint> `]' |
543 * <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `-' <uint> `]'
547 struct translate_ctx
*ctx
,
549 struct parsed_bracket
*brackets
)
551 brackets
->ind_comp
= TGSI_SWIZZLE_X
;
552 if (!parse_register_file_bracket( ctx
, file
))
554 if (!parse_register_bracket( ctx
, brackets
))
560 struct parsed_dcl_bracket
{
566 parse_register_dcl_bracket(
567 struct translate_ctx
*ctx
,
568 struct parsed_dcl_bracket
*bracket
)
571 memset(bracket
, 0, sizeof(struct parsed_dcl_bracket
));
573 eat_opt_white( &ctx
->cur
);
575 if (!parse_uint( &ctx
->cur
, &uindex
)) {
576 /* it can be an empty bracket [] which means its range
577 * is from 0 to some implied size */
578 if (ctx
->cur
[0] == ']' && ctx
->implied_array_size
!= 0) {
580 bracket
->last
= ctx
->implied_array_size
- 1;
583 report_error( ctx
, "Expected literal unsigned integer" );
586 bracket
->first
= uindex
;
588 eat_opt_white( &ctx
->cur
);
590 if (ctx
->cur
[0] == '.' && ctx
->cur
[1] == '.') {
594 eat_opt_white( &ctx
->cur
);
595 if (!parse_uint( &ctx
->cur
, &uindex
)) {
596 report_error( ctx
, "Expected literal integer" );
599 bracket
->last
= (int) uindex
;
600 eat_opt_white( &ctx
->cur
);
603 bracket
->last
= bracket
->first
;
607 if (*ctx
->cur
!= ']') {
608 report_error( ctx
, "Expected `]' or `..'" );
615 /* Parse register declaration.
616 * <register_dcl> ::= <register_file_bracket_index> `]' |
617 * <register_file_bracket_index> `..' <index> `]'
621 struct translate_ctx
*ctx
,
623 struct parsed_dcl_bracket
*brackets
,
630 if (!parse_register_file_bracket( ctx
, file
))
632 if (!parse_register_dcl_bracket( ctx
, &brackets
[0] ))
638 eat_opt_white( &cur
);
643 if (!parse_register_dcl_bracket( ctx
, &brackets
[1] ))
645 /* for geometry shader we don't really care about
646 * the first brackets it's always the size of the
647 * input primitive. so we want to declare just
648 * the index relevant to the semantics which is in
649 * the second bracket */
650 if (ctx
->processor
== TGSI_PROCESSOR_GEOMETRY
&& *file
== TGSI_FILE_INPUT
) {
651 brackets
[0] = brackets
[1];
662 /* Parse destination register operand.*/
665 struct translate_ctx
*ctx
,
667 struct parsed_bracket
*brackets
)
669 brackets
->ind_comp
= TGSI_SWIZZLE_X
;
670 if (!parse_register_file_bracket( ctx
, file
))
672 if (!parse_register_bracket( ctx
, brackets
))
680 struct translate_ctx
*ctx
,
681 struct tgsi_full_dst_register
*dst
)
686 struct parsed_bracket bracket
[2];
687 int parsed_opt_brackets
;
689 if (!parse_register_dst( ctx
, &file
, &bracket
[0] ))
691 if (!parse_opt_register_src_bracket(ctx
, &bracket
[1], &parsed_opt_brackets
))
695 eat_opt_white( &cur
);
697 if (!parse_opt_writemask( ctx
, &writemask
))
700 dst
->Register
.File
= file
;
701 if (parsed_opt_brackets
) {
702 dst
->Register
.Dimension
= 1;
703 dst
->Dimension
.Indirect
= 0;
704 dst
->Dimension
.Dimension
= 0;
705 dst
->Dimension
.Index
= bracket
[0].index
;
706 bracket
[0] = bracket
[1];
708 dst
->Register
.Index
= bracket
[0].index
;
709 dst
->Register
.WriteMask
= writemask
;
710 if (bracket
[0].ind_file
!= TGSI_FILE_NULL
) {
711 dst
->Register
.Indirect
= 1;
712 dst
->Indirect
.File
= bracket
[0].ind_file
;
713 dst
->Indirect
.Index
= bracket
[0].ind_index
;
714 dst
->Indirect
.SwizzleX
= bracket
[0].ind_comp
;
715 dst
->Indirect
.SwizzleY
= bracket
[0].ind_comp
;
716 dst
->Indirect
.SwizzleZ
= bracket
[0].ind_comp
;
717 dst
->Indirect
.SwizzleW
= bracket
[0].ind_comp
;
723 parse_optional_swizzle(
724 struct translate_ctx
*ctx
,
726 boolean
*parsed_swizzle
)
728 const char *cur
= ctx
->cur
;
730 *parsed_swizzle
= FALSE
;
732 eat_opt_white( &cur
);
737 eat_opt_white( &cur
);
738 for (i
= 0; i
< 4; i
++) {
739 if (uprcase( *cur
) == 'X')
740 swizzle
[i
] = TGSI_SWIZZLE_X
;
741 else if (uprcase( *cur
) == 'Y')
742 swizzle
[i
] = TGSI_SWIZZLE_Y
;
743 else if (uprcase( *cur
) == 'Z')
744 swizzle
[i
] = TGSI_SWIZZLE_Z
;
745 else if (uprcase( *cur
) == 'W')
746 swizzle
[i
] = TGSI_SWIZZLE_W
;
748 report_error( ctx
, "Expected register swizzle component `x', `y', `z' or `w'" );
753 *parsed_swizzle
= TRUE
;
761 struct translate_ctx
*ctx
,
762 struct tgsi_full_src_register
*src
)
766 boolean parsed_swizzle
;
767 struct parsed_bracket bracket
[2];
768 int parsed_opt_brackets
;
770 if (*ctx
->cur
== '-') {
772 eat_opt_white( &ctx
->cur
);
773 src
->Register
.Negate
= 1;
776 if (*ctx
->cur
== '|') {
778 eat_opt_white( &ctx
->cur
);
779 src
->Register
.Absolute
= 1;
782 if (!parse_register_src(ctx
, &file
, &bracket
[0]))
784 if (!parse_opt_register_src_bracket(ctx
, &bracket
[1], &parsed_opt_brackets
))
787 src
->Register
.File
= file
;
788 if (parsed_opt_brackets
) {
789 src
->Register
.Dimension
= 1;
790 src
->Dimension
.Indirect
= 0;
791 src
->Dimension
.Dimension
= 0;
792 src
->Dimension
.Index
= bracket
[0].index
;
793 bracket
[0] = bracket
[1];
795 src
->Register
.Index
= bracket
[0].index
;
796 if (bracket
[0].ind_file
!= TGSI_FILE_NULL
) {
797 src
->Register
.Indirect
= 1;
798 src
->Indirect
.File
= bracket
[0].ind_file
;
799 src
->Indirect
.Index
= bracket
[0].ind_index
;
800 src
->Indirect
.SwizzleX
= bracket
[0].ind_comp
;
801 src
->Indirect
.SwizzleY
= bracket
[0].ind_comp
;
802 src
->Indirect
.SwizzleZ
= bracket
[0].ind_comp
;
803 src
->Indirect
.SwizzleW
= bracket
[0].ind_comp
;
806 /* Parse optional swizzle.
808 if (parse_optional_swizzle( ctx
, swizzle
, &parsed_swizzle
)) {
809 if (parsed_swizzle
) {
810 src
->Register
.SwizzleX
= swizzle
[0];
811 src
->Register
.SwizzleY
= swizzle
[1];
812 src
->Register
.SwizzleZ
= swizzle
[2];
813 src
->Register
.SwizzleW
= swizzle
[3];
817 if (src
->Register
.Absolute
) {
818 eat_opt_white( &ctx
->cur
);
819 if (*ctx
->cur
!= '|') {
820 report_error( ctx
, "Expected `|'" );
831 match_inst(const char **pcur
,
833 const struct tgsi_opcode_info
*info
)
835 const char *cur
= *pcur
;
837 /* simple case: the whole string matches the instruction name */
838 if (str_match_nocase_whole(&cur
, info
->mnemonic
)) {
840 *saturate
= TGSI_SAT_NONE
;
844 if (str_match_no_case(&cur
, info
->mnemonic
)) {
845 /* the instruction has a suffix, figure it out */
846 if (str_match_nocase_whole(&cur
, "_SAT")) {
848 *saturate
= TGSI_SAT_ZERO_ONE
;
852 if (str_match_nocase_whole(&cur
, "_SATNV")) {
854 *saturate
= TGSI_SAT_MINUS_PLUS_ONE
;
864 struct translate_ctx
*ctx
,
868 uint saturate
= TGSI_SAT_NONE
;
869 const struct tgsi_opcode_info
*info
;
870 struct tgsi_full_instruction inst
;
874 inst
= tgsi_default_full_instruction();
878 eat_opt_white( &ctx
->cur
);
879 if (*ctx
->cur
== '(') {
883 boolean parsed_swizzle
;
885 inst
.Instruction
.Predicate
= 1;
888 if (*ctx
->cur
== '!') {
890 inst
.Predicate
.Negate
= 1;
893 if (!parse_register_1d( ctx
, &file
, &index
))
896 if (parse_optional_swizzle( ctx
, swizzle
, &parsed_swizzle
)) {
897 if (parsed_swizzle
) {
898 inst
.Predicate
.SwizzleX
= swizzle
[0];
899 inst
.Predicate
.SwizzleY
= swizzle
[1];
900 inst
.Predicate
.SwizzleZ
= swizzle
[2];
901 inst
.Predicate
.SwizzleW
= swizzle
[3];
905 if (*ctx
->cur
!= ')') {
906 report_error( ctx
, "Expected `)'" );
913 /* Parse instruction name.
915 eat_opt_white( &ctx
->cur
);
916 for (i
= 0; i
< TGSI_OPCODE_LAST
; i
++) {
919 info
= tgsi_get_opcode_info( i
);
920 if (match_inst(&cur
, &saturate
, info
)) {
921 if (info
->num_dst
+ info
->num_src
+ info
->is_tex
== 0) {
925 else if (*cur
== '\0' || eat_white( &cur
)) {
931 if (i
== TGSI_OPCODE_LAST
) {
933 report_error( ctx
, "Unknown opcode" );
935 report_error( ctx
, "Expected `DCL', `IMM' or a label" );
939 inst
.Instruction
.Opcode
= i
;
940 inst
.Instruction
.Saturate
= saturate
;
941 inst
.Instruction
.NumDstRegs
= info
->num_dst
;
942 inst
.Instruction
.NumSrcRegs
= info
->num_src
;
944 if (i
>= TGSI_OPCODE_SAMPLE
&& i
<= TGSI_OPCODE_GATHER4
) {
946 * These are not considered tex opcodes here (no additional
947 * target argument) however we're required to set the Texture
948 * bit so we can set the number of tex offsets (offsets aren't
949 * actually handled here yet in any case).
951 inst
.Instruction
.Texture
= 1;
952 inst
.Texture
.Texture
= TGSI_TEXTURE_UNKNOWN
;
955 /* Parse instruction operands.
957 for (i
= 0; i
< info
->num_dst
+ info
->num_src
+ info
->is_tex
; i
++) {
959 eat_opt_white( &ctx
->cur
);
960 if (*ctx
->cur
!= ',') {
961 report_error( ctx
, "Expected `,'" );
965 eat_opt_white( &ctx
->cur
);
968 if (i
< info
->num_dst
) {
969 if (!parse_dst_operand( ctx
, &inst
.Dst
[i
] ))
972 else if (i
< info
->num_dst
+ info
->num_src
) {
973 if (!parse_src_operand( ctx
, &inst
.Src
[i
- info
->num_dst
] ))
979 for (j
= 0; j
< TGSI_TEXTURE_COUNT
; j
++) {
980 if (str_match_nocase_whole( &ctx
->cur
, tgsi_texture_names
[j
] )) {
981 inst
.Instruction
.Texture
= 1;
982 inst
.Texture
.Texture
= j
;
986 if (j
== TGSI_TEXTURE_COUNT
) {
987 report_error( ctx
, "Expected texture target" );
994 eat_opt_white( &cur
);
995 if (info
->is_branch
&& *cur
== ':') {
999 eat_opt_white( &cur
);
1000 if (!parse_uint( &cur
, &target
)) {
1001 report_error( ctx
, "Expected a label" );
1004 inst
.Instruction
.Label
= 1;
1005 inst
.Label
.Label
= target
;
1009 advance
= tgsi_build_full_instruction(
1013 (uint
) (ctx
->tokens_end
- ctx
->tokens_cur
) );
1016 ctx
->tokens_cur
+= advance
;
1021 /* parses a 4-touple of the form {x, y, z, w}
1022 * where x, y, z, w are numbers */
1023 static boolean
parse_immediate_data(struct translate_ctx
*ctx
, unsigned type
,
1024 union tgsi_immediate_data
*values
)
1029 eat_opt_white( &ctx
->cur
);
1030 if (*ctx
->cur
!= '{') {
1031 report_error( ctx
, "Expected `{'" );
1035 for (i
= 0; i
< 4; i
++) {
1036 eat_opt_white( &ctx
->cur
);
1038 if (*ctx
->cur
!= ',') {
1039 report_error( ctx
, "Expected `,'" );
1043 eat_opt_white( &ctx
->cur
);
1047 case TGSI_IMM_FLOAT32
:
1048 ret
= parse_float(&ctx
->cur
, &values
[i
].Float
);
1050 case TGSI_IMM_UINT32
:
1051 ret
= parse_uint(&ctx
->cur
, &values
[i
].Uint
);
1053 case TGSI_IMM_INT32
:
1054 ret
= parse_int(&ctx
->cur
, &values
[i
].Int
);
1063 report_error( ctx
, "Expected immediate constant" );
1067 eat_opt_white( &ctx
->cur
);
1068 if (*ctx
->cur
!= '}') {
1069 report_error( ctx
, "Expected `}'" );
1077 static boolean
parse_declaration( struct translate_ctx
*ctx
)
1079 struct tgsi_full_declaration decl
;
1081 struct parsed_dcl_bracket brackets
[2];
1084 const char *cur
, *cur2
;
1086 boolean is_vs_input
;
1087 boolean is_imm_array
;
1089 if (!eat_white( &ctx
->cur
)) {
1090 report_error( ctx
, "Syntax error" );
1093 if (!parse_register_dcl( ctx
, &file
, brackets
, &num_brackets
))
1095 if (!parse_opt_writemask( ctx
, &writemask
))
1098 decl
= tgsi_default_full_declaration();
1099 decl
.Declaration
.File
= file
;
1100 decl
.Declaration
.UsageMask
= writemask
;
1102 if (num_brackets
== 1) {
1103 decl
.Range
.First
= brackets
[0].first
;
1104 decl
.Range
.Last
= brackets
[0].last
;
1106 decl
.Range
.First
= brackets
[1].first
;
1107 decl
.Range
.Last
= brackets
[1].last
;
1109 decl
.Declaration
.Dimension
= 1;
1110 decl
.Dim
.Index2D
= brackets
[0].first
;
1113 is_vs_input
= (file
== TGSI_FILE_INPUT
&&
1114 ctx
->processor
== TGSI_PROCESSOR_VERTEX
);
1115 is_imm_array
= (file
== TGSI_FILE_IMMEDIATE_ARRAY
);
1118 eat_opt_white( &cur
);
1119 if (*cur
== ',' && !is_vs_input
) {
1123 eat_opt_white( &cur
);
1124 if (file
== TGSI_FILE_RESOURCE
) {
1125 for (i
= 0; i
< TGSI_TEXTURE_COUNT
; i
++) {
1126 if (str_match_nocase_whole(&cur
, tgsi_texture_names
[i
])) {
1127 decl
.Resource
.Resource
= i
;
1131 if (i
== TGSI_TEXTURE_COUNT
) {
1132 report_error(ctx
, "Expected texture target");
1137 eat_opt_white(&cur2
);
1138 while (*cur2
== ',') {
1140 eat_opt_white(&cur2
);
1141 if (str_match_nocase_whole(&cur2
, "RAW")) {
1142 decl
.Resource
.Raw
= 1;
1144 } else if (str_match_nocase_whole(&cur2
, "WR")) {
1145 decl
.Resource
.Writable
= 1;
1151 eat_opt_white(&cur2
);
1156 } else if (file
== TGSI_FILE_SAMPLER_VIEW
) {
1157 for (i
= 0; i
< TGSI_TEXTURE_COUNT
; i
++) {
1158 if (str_match_nocase_whole(&cur
, tgsi_texture_names
[i
])) {
1159 decl
.SamplerView
.Resource
= i
;
1163 if (i
== TGSI_TEXTURE_COUNT
) {
1164 report_error(ctx
, "Expected texture target");
1167 eat_opt_white( &cur
);
1169 report_error( ctx
, "Expected `,'" );
1173 eat_opt_white( &cur
);
1174 for (j
= 0; j
< 4; ++j
) {
1175 for (i
= 0; i
< PIPE_TYPE_COUNT
; ++i
) {
1176 if (str_match_nocase_whole(&cur
, tgsi_type_names
[i
])) {
1179 decl
.SamplerView
.ReturnTypeX
= i
;
1182 decl
.SamplerView
.ReturnTypeY
= i
;
1185 decl
.SamplerView
.ReturnTypeZ
= i
;
1188 decl
.SamplerView
.ReturnTypeW
= i
;
1196 if (i
== PIPE_TYPE_COUNT
) {
1197 if (j
== 0 || j
> 2) {
1198 report_error(ctx
, "Expected type name");
1204 eat_opt_white( &cur2
);
1207 eat_opt_white( &cur2
);
1215 decl
.SamplerView
.ReturnTypeY
=
1216 decl
.SamplerView
.ReturnTypeZ
=
1217 decl
.SamplerView
.ReturnTypeW
=
1218 decl
.SamplerView
.ReturnTypeX
;
1222 if (str_match_nocase_whole(&cur
, "LOCAL")) {
1223 decl
.Declaration
.Local
= 1;
1228 eat_opt_white( &cur
);
1231 eat_opt_white( &cur
);
1233 for (i
= 0; i
< TGSI_SEMANTIC_COUNT
; i
++) {
1234 if (str_match_nocase_whole(&cur
, tgsi_semantic_names
[i
])) {
1238 eat_opt_white( &cur2
);
1241 eat_opt_white( &cur2
);
1242 if (!parse_uint( &cur2
, &index
)) {
1243 report_error( ctx
, "Expected literal integer" );
1246 eat_opt_white( &cur2
);
1248 report_error( ctx
, "Expected `]'" );
1253 decl
.Semantic
.Index
= index
;
1258 decl
.Declaration
.Semantic
= 1;
1259 decl
.Semantic
.Name
= i
;
1267 } else if (is_imm_array
) {
1269 union tgsi_immediate_data
*vals_itr
;
1270 /* we have our immediate data */
1272 report_error( ctx
, "Immediate array without data" );
1278 decl
.ImmediateData
.u
=
1279 MALLOC(sizeof(union tgsi_immediate_data
) * 4 *
1280 (decl
.Range
.Last
+ 1));
1281 vals_itr
= decl
.ImmediateData
.u
;
1282 for (i
= 0; i
<= decl
.Range
.Last
; ++i
) {
1283 if (!parse_immediate_data(ctx
, TGSI_IMM_FLOAT32
, vals_itr
)) {
1284 FREE(decl
.ImmediateData
.u
);
1288 eat_opt_white( &ctx
->cur
);
1289 if (*ctx
->cur
!= ',') {
1290 if (i
!= decl
.Range
.Last
) {
1291 report_error( ctx
, "Not enough data in immediate array!" );
1292 FREE(decl
.ImmediateData
.u
);
1298 eat_opt_white( &ctx
->cur
);
1299 if (*ctx
->cur
!= '}') {
1300 FREE(decl
.ImmediateData
.u
);
1301 report_error( ctx
, "Immediate array data missing closing '}'" );
1308 eat_opt_white( &cur
);
1309 if (*cur
== ',' && !is_vs_input
) {
1313 eat_opt_white( &cur
);
1314 for (i
= 0; i
< TGSI_INTERPOLATE_COUNT
; i
++) {
1315 if (str_match_nocase_whole( &cur
, tgsi_interpolate_names
[i
] )) {
1316 decl
.Declaration
.Interpolate
= 1;
1317 decl
.Interp
.Interpolate
= i
;
1323 if (i
== TGSI_INTERPOLATE_COUNT
) {
1324 report_error( ctx
, "Expected semantic or interpolate attribute" );
1329 advance
= tgsi_build_full_declaration(
1333 (uint
) (ctx
->tokens_end
- ctx
->tokens_cur
) );
1336 FREE(decl
.ImmediateData
.u
);
1340 ctx
->tokens_cur
+= advance
;
1345 static boolean
parse_immediate( struct translate_ctx
*ctx
)
1347 struct tgsi_full_immediate imm
;
1351 if (*ctx
->cur
== '[') {
1356 eat_opt_white( &ctx
->cur
);
1357 if (!parse_uint( &ctx
->cur
, &uindex
)) {
1358 report_error( ctx
, "Expected literal unsigned integer" );
1362 if (uindex
!= ctx
->num_immediates
) {
1363 report_error( ctx
, "Immediates must be sorted" );
1367 eat_opt_white( &ctx
->cur
);
1368 if (*ctx
->cur
!= ']') {
1369 report_error( ctx
, "Expected `]'" );
1376 if (!eat_white( &ctx
->cur
)) {
1377 report_error( ctx
, "Syntax error" );
1380 for (type
= 0; type
< Elements(tgsi_immediate_type_names
); ++type
) {
1381 if (str_match_nocase_whole(&ctx
->cur
, tgsi_immediate_type_names
[type
]))
1384 if (type
== Elements(tgsi_immediate_type_names
)) {
1385 report_error( ctx
, "Expected immediate type" );
1389 imm
= tgsi_default_full_immediate();
1390 imm
.Immediate
.NrTokens
+= 4;
1391 imm
.Immediate
.DataType
= type
;
1392 parse_immediate_data(ctx
, type
, imm
.u
);
1394 advance
= tgsi_build_full_immediate(
1398 (uint
) (ctx
->tokens_end
- ctx
->tokens_cur
) );
1401 ctx
->tokens_cur
+= advance
;
1403 ctx
->num_immediates
++;
1409 parse_primitive( const char **pcur
, uint
*primitive
)
1413 for (i
= 0; i
< PIPE_PRIM_MAX
; i
++) {
1414 const char *cur
= *pcur
;
1416 if (str_match_nocase_whole( &cur
, tgsi_primitive_names
[i
])) {
1426 parse_fs_coord_origin( const char **pcur
, uint
*fs_coord_origin
)
1430 for (i
= 0; i
< Elements(tgsi_fs_coord_origin_names
); i
++) {
1431 const char *cur
= *pcur
;
1433 if (str_match_nocase_whole( &cur
, tgsi_fs_coord_origin_names
[i
])) {
1434 *fs_coord_origin
= i
;
1443 parse_fs_coord_pixel_center( const char **pcur
, uint
*fs_coord_pixel_center
)
1447 for (i
= 0; i
< Elements(tgsi_fs_coord_pixel_center_names
); i
++) {
1448 const char *cur
= *pcur
;
1450 if (str_match_nocase_whole( &cur
, tgsi_fs_coord_pixel_center_names
[i
])) {
1451 *fs_coord_pixel_center
= i
;
1460 static boolean
parse_property( struct translate_ctx
*ctx
)
1462 struct tgsi_full_property prop
;
1468 if (!eat_white( &ctx
->cur
)) {
1469 report_error( ctx
, "Syntax error" );
1472 if (!parse_identifier( &ctx
->cur
, id
)) {
1473 report_error( ctx
, "Syntax error" );
1476 for (property_name
= 0; property_name
< TGSI_PROPERTY_COUNT
;
1478 if (streq_nocase_uprcase(tgsi_property_names
[property_name
], id
)) {
1482 if (property_name
>= TGSI_PROPERTY_COUNT
) {
1483 debug_printf( "\nError: Unknown property : '%s'", id
);
1487 eat_opt_white( &ctx
->cur
);
1488 switch(property_name
) {
1489 case TGSI_PROPERTY_GS_INPUT_PRIM
:
1490 case TGSI_PROPERTY_GS_OUTPUT_PRIM
:
1491 if (!parse_primitive(&ctx
->cur
, &values
[0] )) {
1492 report_error( ctx
, "Unknown primitive name as property!" );
1495 if (property_name
== TGSI_PROPERTY_GS_INPUT_PRIM
&&
1496 ctx
->processor
== TGSI_PROCESSOR_GEOMETRY
) {
1497 ctx
->implied_array_size
= u_vertices_per_prim(values
[0]);
1500 case TGSI_PROPERTY_FS_COORD_ORIGIN
:
1501 if (!parse_fs_coord_origin(&ctx
->cur
, &values
[0] )) {
1502 report_error( ctx
, "Unknown coord origin as property: must be UPPER_LEFT or LOWER_LEFT!" );
1506 case TGSI_PROPERTY_FS_COORD_PIXEL_CENTER
:
1507 if (!parse_fs_coord_pixel_center(&ctx
->cur
, &values
[0] )) {
1508 report_error( ctx
, "Unknown coord pixel center as property: must be HALF_INTEGER or INTEGER!" );
1512 case TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
:
1514 if (!parse_uint(&ctx
->cur
, &values
[0] )) {
1515 report_error( ctx
, "Expected unsigned integer as property!" );
1520 prop
= tgsi_default_full_property();
1521 prop
.Property
.PropertyName
= property_name
;
1522 prop
.Property
.NrTokens
+= 1;
1523 prop
.u
[0].Data
= values
[0];
1525 advance
= tgsi_build_full_property(
1529 (uint
) (ctx
->tokens_end
- ctx
->tokens_cur
) );
1532 ctx
->tokens_cur
+= advance
;
1538 static boolean
translate( struct translate_ctx
*ctx
)
1540 eat_opt_white( &ctx
->cur
);
1541 if (!parse_header( ctx
))
1544 while (*ctx
->cur
!= '\0') {
1546 if (!eat_white( &ctx
->cur
)) {
1547 report_error( ctx
, "Syntax error" );
1551 if (*ctx
->cur
== '\0')
1553 if (parse_label( ctx
, &label_val
)) {
1554 if (!parse_instruction( ctx
, TRUE
))
1557 else if (str_match_nocase_whole( &ctx
->cur
, "DCL" )) {
1558 if (!parse_declaration( ctx
))
1561 else if (str_match_nocase_whole( &ctx
->cur
, "IMM" )) {
1562 if (!parse_immediate( ctx
))
1565 else if (str_match_nocase_whole( &ctx
->cur
, "PROPERTY" )) {
1566 if (!parse_property( ctx
))
1569 else if (!parse_instruction( ctx
, FALSE
)) {
1578 tgsi_text_translate(
1580 struct tgsi_token
*tokens
,
1583 struct translate_ctx ctx
;
1587 ctx
.tokens
= tokens
;
1588 ctx
.tokens_cur
= tokens
;
1589 ctx
.tokens_end
= tokens
+ num_tokens
;
1591 if (!translate( &ctx
))
1594 return tgsi_sanity_check( tokens
);