1 /**************************************************************************
3 * Copyright 2007 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 **************************************************************************/
29 * Keith Whitwell <keith@tungstengraphics.com>
34 #include "main/imports.h"
35 #include "main/mtypes.h"
36 #include "shader/prog_print.h"
37 #include "shader/programopt.h"
39 #include "pipe/p_context.h"
40 #include "pipe/p_defines.h"
41 #include "pipe/p_shader_tokens.h"
42 #include "draw/draw_context.h"
43 #include "tgsi/tgsi_dump.h"
45 #include "st_context.h"
47 #include "st_program.h"
48 #include "st_mesa_to_tgsi.h"
49 #include "cso_cache/cso_context.h"
52 #define ST_MAX_SHADER_TOKENS (8 * 1024)
59 * Translate a Mesa vertex shader into a TGSI shader.
60 * \param outputMapping to map vertex program output registers (VERT_RESULT_x)
61 * to TGSI output slots
62 * \param tokensOut destination for TGSI tokens
63 * \return pointer to cached pipe_shader object.
66 st_translate_vertex_program(struct st_context
*st
,
67 struct st_vertex_program
*stvp
,
68 const GLuint outputMapping
[],
69 const ubyte
*outputSemanticName
,
70 const ubyte
*outputSemanticIndex
)
72 struct pipe_context
*pipe
= st
->pipe
;
73 struct tgsi_token
*tokens
;
74 GLuint defaultOutputMapping
[VERT_RESULT_MAX
];
75 struct pipe_shader_state vs
;
77 GLuint num_generic
= 0;
80 ubyte vs_input_semantic_name
[PIPE_MAX_SHADER_INPUTS
];
81 ubyte vs_input_semantic_index
[PIPE_MAX_SHADER_INPUTS
];
82 uint vs_num_inputs
= 0;
84 ubyte vs_output_semantic_name
[PIPE_MAX_SHADER_OUTPUTS
];
85 ubyte vs_output_semantic_index
[PIPE_MAX_SHADER_OUTPUTS
];
86 uint vs_num_outputs
= 0;
88 GLbitfield input_flags
[MAX_PROGRAM_INPUTS
];
89 GLbitfield output_flags
[MAX_PROGRAM_OUTPUTS
];
91 tokens
= (struct tgsi_token
*)MALLOC(ST_MAX_SHADER_TOKENS
* sizeof *tokens
);
93 /* FIXME: propagate error to the caller */
98 memset(&vs
, 0, sizeof(vs
));
99 memset(input_flags
, 0, sizeof(input_flags
));
100 memset(output_flags
, 0, sizeof(output_flags
));
102 if (stvp
->Base
.IsPositionInvariant
)
103 _mesa_insert_mvp_code(st
->ctx
, &stvp
->Base
);
106 * Determine number of inputs, the mappings between VERT_ATTRIB_x
107 * and TGSI generic input indexes, plus input attrib semantic info.
109 for (attr
= 0; attr
< VERT_ATTRIB_MAX
; attr
++) {
110 if (stvp
->Base
.Base
.InputsRead
& (1 << attr
)) {
111 const GLuint slot
= vs_num_inputs
;
115 stvp
->input_to_index
[attr
] = slot
;
116 stvp
->index_to_input
[slot
] = attr
;
119 case VERT_ATTRIB_POS
:
120 vs_input_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
121 vs_input_semantic_index
[slot
] = 0;
123 case VERT_ATTRIB_WEIGHT
:
125 case VERT_ATTRIB_NORMAL
:
126 /* just label as a generic */
127 vs_input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
128 vs_input_semantic_index
[slot
] = 0;
130 case VERT_ATTRIB_COLOR0
:
131 vs_input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
132 vs_input_semantic_index
[slot
] = 0;
134 case VERT_ATTRIB_COLOR1
:
135 vs_input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
136 vs_input_semantic_index
[slot
] = 1;
138 case VERT_ATTRIB_FOG
:
139 vs_input_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
140 vs_input_semantic_index
[slot
] = 0;
142 case VERT_ATTRIB_POINT_SIZE
:
143 vs_input_semantic_name
[slot
] = TGSI_SEMANTIC_PSIZE
;
144 vs_input_semantic_index
[slot
] = 0;
146 case VERT_ATTRIB_TEX0
:
147 case VERT_ATTRIB_TEX1
:
148 case VERT_ATTRIB_TEX2
:
149 case VERT_ATTRIB_TEX3
:
150 case VERT_ATTRIB_TEX4
:
151 case VERT_ATTRIB_TEX5
:
152 case VERT_ATTRIB_TEX6
:
153 case VERT_ATTRIB_TEX7
:
154 assert(slot
< Elements(vs_input_semantic_name
));
155 vs_input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
156 vs_input_semantic_index
[slot
] = num_generic
++;
158 case VERT_ATTRIB_GENERIC0
:
159 case VERT_ATTRIB_GENERIC1
:
160 case VERT_ATTRIB_GENERIC2
:
161 case VERT_ATTRIB_GENERIC3
:
162 case VERT_ATTRIB_GENERIC4
:
163 case VERT_ATTRIB_GENERIC5
:
164 case VERT_ATTRIB_GENERIC6
:
165 case VERT_ATTRIB_GENERIC7
:
166 case VERT_ATTRIB_GENERIC8
:
167 case VERT_ATTRIB_GENERIC9
:
168 case VERT_ATTRIB_GENERIC10
:
169 case VERT_ATTRIB_GENERIC11
:
170 case VERT_ATTRIB_GENERIC12
:
171 case VERT_ATTRIB_GENERIC13
:
172 case VERT_ATTRIB_GENERIC14
:
173 case VERT_ATTRIB_GENERIC15
:
174 assert(attr
< VERT_ATTRIB_MAX
);
175 assert(slot
< Elements(vs_input_semantic_name
));
176 vs_input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
177 vs_input_semantic_index
[slot
] = num_generic
++;
183 input_flags
[slot
] = stvp
->Base
.Base
.InputFlags
[attr
];
188 if (outputMapping
&& outputSemanticName
) {
189 printf("VERT_RESULT written out_slot semantic_name semantic_index\n");
190 for (attr
= 0; attr
< VERT_RESULT_MAX
; attr
++) {
191 printf(" %-2d %c %3d %2d %2d\n",
193 ((stvp
->Base
.Base
.OutputsWritten
& (1 << attr
)) ? 'Y' : ' '),
195 outputSemanticName
[attr
],
196 outputSemanticIndex
[attr
]);
201 /* initialize output semantics to defaults */
202 for (i
= 0; i
< PIPE_MAX_SHADER_OUTPUTS
; i
++) {
203 assert(i
< Elements(vs_output_semantic_name
));
204 vs_output_semantic_name
[i
] = TGSI_SEMANTIC_GENERIC
;
205 vs_output_semantic_index
[i
] = 0;
206 output_flags
[i
] = 0x0;
211 * Determine number of outputs, the (default) output register
212 * mapping and the semantic information for each output.
214 for (attr
= 0; attr
< VERT_RESULT_MAX
; attr
++) {
215 if (stvp
->Base
.Base
.OutputsWritten
& (1 << attr
)) {
219 * Pass in the fragment program's input's semantic info.
220 * Use the generic semantic indexes from there, instead of
225 slot
= outputMapping
[attr
];
229 slot
= vs_num_outputs
;
231 defaultOutputMapping
[attr
] = slot
;
235 case VERT_RESULT_HPOS
:
237 vs_output_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
238 vs_output_semantic_index
[slot
] = 0;
240 case VERT_RESULT_COL0
:
241 vs_output_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
242 vs_output_semantic_index
[slot
] = 0;
244 case VERT_RESULT_COL1
:
245 vs_output_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
246 vs_output_semantic_index
[slot
] = 1;
248 case VERT_RESULT_BFC0
:
249 vs_output_semantic_name
[slot
] = TGSI_SEMANTIC_BCOLOR
;
250 vs_output_semantic_index
[slot
] = 0;
252 case VERT_RESULT_BFC1
:
253 vs_output_semantic_name
[slot
] = TGSI_SEMANTIC_BCOLOR
;
254 vs_output_semantic_index
[slot
] = 1;
256 case VERT_RESULT_FOGC
:
257 vs_output_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
258 vs_output_semantic_index
[slot
] = 0;
260 case VERT_RESULT_PSIZ
:
261 vs_output_semantic_name
[slot
] = TGSI_SEMANTIC_PSIZE
;
262 vs_output_semantic_index
[slot
] = 0;
264 case VERT_RESULT_EDGE
:
267 case VERT_RESULT_TEX0
:
268 case VERT_RESULT_TEX1
:
269 case VERT_RESULT_TEX2
:
270 case VERT_RESULT_TEX3
:
271 case VERT_RESULT_TEX4
:
272 case VERT_RESULT_TEX5
:
273 case VERT_RESULT_TEX6
:
274 case VERT_RESULT_TEX7
:
276 case VERT_RESULT_VAR0
:
279 assert(slot
< Elements(vs_output_semantic_name
));
280 if (outputSemanticName
) {
281 /* use provided semantic into */
282 assert(outputSemanticName
[attr
] != TGSI_SEMANTIC_COUNT
);
283 vs_output_semantic_name
[slot
] = outputSemanticName
[attr
];
284 vs_output_semantic_index
[slot
] = outputSemanticIndex
[attr
];
287 /* use default semantic info */
288 vs_output_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
289 vs_output_semantic_index
[slot
] = num_generic
++;
293 assert(slot
< Elements(output_flags
));
294 output_flags
[slot
] = stvp
->Base
.Base
.OutputFlags
[attr
];
299 /* find max output slot referenced to compute vs_num_outputs */
301 for (attr
= 0; attr
< VERT_RESULT_MAX
; attr
++) {
302 if (outputMapping
[attr
] != ~0 && outputMapping
[attr
] > maxSlot
)
303 maxSlot
= outputMapping
[attr
];
305 vs_num_outputs
= maxSlot
+ 1;
308 outputMapping
= defaultOutputMapping
;
314 printf("outputMapping? %d\n", outputMapping
? 1 : 0);
316 printf("attr -> slot\n");
317 for (i
= 0; i
< 16; i
++) {
318 printf(" %2d %3d\n", i
, outputMapping
[i
]);
321 printf("slot sem_name sem_index\n");
322 for (i
= 0; i
< vs_num_outputs
; i
++) {
323 printf(" %2d %d %d\n",
325 vs_output_semantic_name
[i
],
326 vs_output_semantic_index
[i
]);
331 /* free old shader state, if any */
332 if (stvp
->state
.tokens
) {
333 _mesa_free((void *) stvp
->state
.tokens
);
334 stvp
->state
.tokens
= NULL
;
336 if (stvp
->driver_shader
) {
337 cso_delete_vertex_shader(st
->cso_context
, stvp
->driver_shader
);
338 stvp
->driver_shader
= NULL
;
341 /* XXX: fix static allocation of tokens:
343 num_tokens
= st_translate_mesa_program(st
->ctx
,
344 TGSI_PROCESSOR_VERTEX
,
348 stvp
->input_to_index
,
349 vs_input_semantic_name
,
350 vs_input_semantic_index
,
356 vs_output_semantic_name
,
357 vs_output_semantic_index
,
359 /* tokenized result */
360 tokens
, ST_MAX_SHADER_TOKENS
);
362 assert(num_tokens
< ST_MAX_SHADER_TOKENS
);
364 vs
.tokens
= (struct tgsi_token
*)
365 _mesa_realloc(tokens
,
366 ST_MAX_SHADER_TOKENS
* sizeof *tokens
,
367 num_tokens
* sizeof *tokens
);
369 stvp
->num_inputs
= vs_num_inputs
;
370 stvp
->state
= vs
; /* struct copy */
371 stvp
->driver_shader
= pipe
->create_vs_state(pipe
, &vs
);
374 _mesa_print_program(&stvp
->Base
.Base
);
377 tgsi_dump( vs
.tokens
, 0 );
383 * Translate a Mesa fragment shader into a TGSI shader.
384 * \param inputMapping to map fragment program input registers to TGSI
386 * \param tokensOut destination for TGSI tokens
387 * \return pointer to cached pipe_shader object.
390 st_translate_fragment_program(struct st_context
*st
,
391 struct st_fragment_program
*stfp
,
392 const GLuint inputMapping
[])
394 struct pipe_context
*pipe
= st
->pipe
;
395 struct tgsi_token
*tokens
;
396 GLuint outputMapping
[FRAG_RESULT_MAX
];
397 GLuint defaultInputMapping
[FRAG_ATTRIB_MAX
];
398 struct pipe_shader_state fs
;
399 GLuint interpMode
[16]; /* XXX size? */
401 const GLbitfield inputsRead
= stfp
->Base
.Base
.InputsRead
;
403 GLuint num_generic
= 0;
406 uint fs_num_inputs
= 0;
408 ubyte fs_output_semantic_name
[PIPE_MAX_SHADER_OUTPUTS
];
409 ubyte fs_output_semantic_index
[PIPE_MAX_SHADER_OUTPUTS
];
410 uint fs_num_outputs
= 0;
412 GLbitfield input_flags
[MAX_PROGRAM_INPUTS
];
413 GLbitfield output_flags
[MAX_PROGRAM_OUTPUTS
];
415 tokens
= (struct tgsi_token
*)MALLOC(ST_MAX_SHADER_TOKENS
* sizeof *tokens
);
417 /* FIXME: propagate error to the caller */
422 memset(&fs
, 0, sizeof(fs
));
423 memset(input_flags
, 0, sizeof(input_flags
));
424 memset(output_flags
, 0, sizeof(output_flags
));
426 /* which vertex output goes to the first fragment input: */
427 if (inputsRead
& FRAG_BIT_WPOS
)
433 * Convert Mesa program inputs to TGSI input register semantics.
435 for (attr
= 0; attr
< FRAG_ATTRIB_MAX
; attr
++) {
436 if (inputsRead
& (1 << attr
)) {
437 const GLuint slot
= fs_num_inputs
;
439 defaultInputMapping
[attr
] = slot
;
441 stfp
->input_map
[slot
] = vslot
++;
446 case FRAG_ATTRIB_WPOS
:
447 stfp
->input_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
448 stfp
->input_semantic_index
[slot
] = 0;
449 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
451 case FRAG_ATTRIB_COL0
:
452 stfp
->input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
453 stfp
->input_semantic_index
[slot
] = 0;
454 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
456 case FRAG_ATTRIB_COL1
:
457 stfp
->input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
458 stfp
->input_semantic_index
[slot
] = 1;
459 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
461 case FRAG_ATTRIB_FOGC
:
462 stfp
->input_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
463 stfp
->input_semantic_index
[slot
] = 0;
464 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
466 case FRAG_ATTRIB_FACE
:
467 stfp
->input_semantic_name
[slot
] = TGSI_SEMANTIC_FACE
;
468 stfp
->input_semantic_index
[slot
] = num_generic
++;
469 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
471 case FRAG_ATTRIB_PNTC
:
472 stfp
->input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
473 stfp
->input_semantic_index
[slot
] = num_generic
++;
474 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
476 case FRAG_ATTRIB_TEX0
:
477 case FRAG_ATTRIB_TEX1
:
478 case FRAG_ATTRIB_TEX2
:
479 case FRAG_ATTRIB_TEX3
:
480 case FRAG_ATTRIB_TEX4
:
481 case FRAG_ATTRIB_TEX5
:
482 case FRAG_ATTRIB_TEX6
:
483 case FRAG_ATTRIB_TEX7
:
484 stfp
->input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
485 stfp
->input_semantic_index
[slot
] = num_generic
++;
486 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
488 case FRAG_ATTRIB_VAR0
:
491 stfp
->input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
492 stfp
->input_semantic_index
[slot
] = num_generic
++;
493 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
496 input_flags
[slot
] = stfp
->Base
.Base
.InputFlags
[attr
];
501 * Semantics and mapping for outputs
505 GLbitfield outputsWritten
= stfp
->Base
.Base
.OutputsWritten
;
507 /* if z is written, emit that first */
508 if (outputsWritten
& (1 << FRAG_RESULT_DEPTH
)) {
509 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_POSITION
;
510 fs_output_semantic_index
[fs_num_outputs
] = 0;
511 outputMapping
[FRAG_RESULT_DEPTH
] = fs_num_outputs
;
513 outputsWritten
&= ~(1 << FRAG_RESULT_DEPTH
);
516 /* handle remaning outputs (color) */
517 for (attr
= 0; attr
< FRAG_RESULT_MAX
; attr
++) {
518 if (outputsWritten
& (1 << attr
)) {
520 case FRAG_RESULT_DEPTH
:
525 assert(attr
== FRAG_RESULT_COLOR
||
526 (FRAG_RESULT_DATA0
<= attr
&& attr
< FRAG_RESULT_MAX
));
527 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_COLOR
;
528 fs_output_semantic_index
[fs_num_outputs
] = numColors
;
529 outputMapping
[attr
] = fs_num_outputs
;
534 output_flags
[fs_num_outputs
] = stfp
->Base
.Base
.OutputFlags
[attr
];
542 inputMapping
= defaultInputMapping
;
544 /* XXX: fix static allocation of tokens:
546 num_tokens
= st_translate_mesa_program(st
->ctx
,
547 TGSI_PROCESSOR_FRAGMENT
,
552 stfp
->input_semantic_name
,
553 stfp
->input_semantic_index
,
559 fs_output_semantic_name
,
560 fs_output_semantic_index
,
562 /* tokenized result */
563 tokens
, ST_MAX_SHADER_TOKENS
);
565 assert(num_tokens
< ST_MAX_SHADER_TOKENS
);
567 fs
.tokens
= (struct tgsi_token
*)
568 _mesa_realloc(tokens
,
569 ST_MAX_SHADER_TOKENS
* sizeof *tokens
,
570 num_tokens
* sizeof *tokens
);
572 stfp
->state
= fs
; /* struct copy */
573 stfp
->driver_shader
= pipe
->create_fs_state(pipe
, &fs
);
576 _mesa_print_program(&stfp
->Base
.Base
);
579 tgsi_dump( fs
.tokens
, 0/*TGSI_DUMP_VERBOSE*/ );
584 * Debug- print current shader text
587 st_print_shaders(GLcontext
*ctx
)
589 struct gl_shader_program
*shProg
= ctx
->Shader
.CurrentProgram
;
592 for (i
= 0; i
< shProg
->NumShaders
; i
++) {
593 printf("GLSL shader %u of %u:\n", i
, shProg
->NumShaders
);
594 printf("%s\n", shProg
->Shaders
[i
]->Source
);