1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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 <keithw@vmware.com>
34 #include "main/imports.h"
35 #include "main/hash.h"
36 #include "main/mtypes.h"
37 #include "program/prog_parameter.h"
38 #include "program/prog_print.h"
39 #include "program/programopt.h"
41 #include "compiler/nir/nir.h"
43 #include "pipe/p_context.h"
44 #include "pipe/p_defines.h"
45 #include "pipe/p_shader_tokens.h"
46 #include "draw/draw_context.h"
47 #include "tgsi/tgsi_dump.h"
48 #include "tgsi/tgsi_emulate.h"
49 #include "tgsi/tgsi_parse.h"
50 #include "tgsi/tgsi_ureg.h"
53 #include "st_cb_bitmap.h"
54 #include "st_cb_drawpixels.h"
55 #include "st_context.h"
56 #include "st_tgsi_lower_yuv.h"
57 #include "st_program.h"
58 #include "st_mesa_to_tgsi.h"
59 #include "st_atifs_to_tgsi.h"
61 #include "cso_cache/cso_context.h"
66 * Delete a vertex program variant. Note the caller must unlink
67 * the variant from the linked list.
70 delete_vp_variant(struct st_context
*st
, struct st_vp_variant
*vpv
)
72 if (vpv
->driver_shader
)
73 cso_delete_vertex_shader(st
->cso_context
, vpv
->driver_shader
);
76 draw_delete_vertex_shader( st
->draw
, vpv
->draw_shader
);
78 if (((vpv
->tgsi
.type
== PIPE_SHADER_IR_TGSI
)) && vpv
->tgsi
.tokens
)
79 ureg_free_tokens(vpv
->tgsi
.tokens
);
87 * Clean out any old compilations:
90 st_release_vp_variants( struct st_context
*st
,
91 struct st_vertex_program
*stvp
)
93 struct st_vp_variant
*vpv
;
95 for (vpv
= stvp
->variants
; vpv
; ) {
96 struct st_vp_variant
*next
= vpv
->next
;
97 delete_vp_variant(st
, vpv
);
101 stvp
->variants
= NULL
;
103 if ((stvp
->tgsi
.type
== PIPE_SHADER_IR_TGSI
) && stvp
->tgsi
.tokens
) {
104 tgsi_free_tokens(stvp
->tgsi
.tokens
);
105 stvp
->tgsi
.tokens
= NULL
;
112 * Delete a fragment program variant. Note the caller must unlink
113 * the variant from the linked list.
116 delete_fp_variant(struct st_context
*st
, struct st_fp_variant
*fpv
)
118 if (fpv
->driver_shader
)
119 cso_delete_fragment_shader(st
->cso_context
, fpv
->driver_shader
);
125 * Free all variants of a fragment program.
128 st_release_fp_variants(struct st_context
*st
, struct st_fragment_program
*stfp
)
130 struct st_fp_variant
*fpv
;
132 for (fpv
= stfp
->variants
; fpv
; ) {
133 struct st_fp_variant
*next
= fpv
->next
;
134 delete_fp_variant(st
, fpv
);
138 stfp
->variants
= NULL
;
140 if ((stfp
->tgsi
.type
== PIPE_SHADER_IR_TGSI
) && stfp
->tgsi
.tokens
) {
141 ureg_free_tokens(stfp
->tgsi
.tokens
);
142 stfp
->tgsi
.tokens
= NULL
;
148 * Delete a basic program variant. Note the caller must unlink
149 * the variant from the linked list.
152 delete_basic_variant(struct st_context
*st
, struct st_basic_variant
*v
,
155 if (v
->driver_shader
) {
157 case GL_TESS_CONTROL_PROGRAM_NV
:
158 cso_delete_tessctrl_shader(st
->cso_context
, v
->driver_shader
);
160 case GL_TESS_EVALUATION_PROGRAM_NV
:
161 cso_delete_tesseval_shader(st
->cso_context
, v
->driver_shader
);
163 case GL_GEOMETRY_PROGRAM_NV
:
164 cso_delete_geometry_shader(st
->cso_context
, v
->driver_shader
);
166 case GL_COMPUTE_PROGRAM_NV
:
167 cso_delete_compute_shader(st
->cso_context
, v
->driver_shader
);
170 assert(!"this shouldn't occur");
179 * Free all basic program variants.
182 st_release_basic_variants(struct st_context
*st
, GLenum target
,
183 struct st_basic_variant
**variants
,
184 struct pipe_shader_state
*tgsi
)
186 struct st_basic_variant
*v
;
188 for (v
= *variants
; v
; ) {
189 struct st_basic_variant
*next
= v
->next
;
190 delete_basic_variant(st
, v
, target
);
197 ureg_free_tokens(tgsi
->tokens
);
204 * Free all variants of a compute program.
207 st_release_cp_variants(struct st_context
*st
, struct st_compute_program
*stcp
)
209 struct st_basic_variant
**variants
= &stcp
->variants
;
210 struct st_basic_variant
*v
;
212 for (v
= *variants
; v
; ) {
213 struct st_basic_variant
*next
= v
->next
;
214 delete_basic_variant(st
, v
, stcp
->Base
.Target
);
220 if (stcp
->tgsi
.prog
) {
221 ureg_free_tokens(stcp
->tgsi
.prog
);
222 stcp
->tgsi
.prog
= NULL
;
228 * Translate a vertex program.
231 st_translate_vertex_program(struct st_context
*st
,
232 struct st_vertex_program
*stvp
)
234 struct ureg_program
*ureg
;
235 enum pipe_error error
;
236 unsigned num_outputs
= 0;
238 unsigned input_to_index
[VERT_ATTRIB_MAX
] = {0};
239 unsigned output_slot_to_attr
[VARYING_SLOT_MAX
] = {0};
240 ubyte output_semantic_name
[VARYING_SLOT_MAX
] = {0};
241 ubyte output_semantic_index
[VARYING_SLOT_MAX
] = {0};
243 stvp
->num_inputs
= 0;
245 if (stvp
->Base
.arb
.IsPositionInvariant
)
246 _mesa_insert_mvp_code(st
->ctx
, &stvp
->Base
);
249 * Determine number of inputs, the mappings between VERT_ATTRIB_x
250 * and TGSI generic input indexes, plus input attrib semantic info.
252 for (attr
= 0; attr
< VERT_ATTRIB_MAX
; attr
++) {
253 if ((stvp
->Base
.info
.inputs_read
& BITFIELD64_BIT(attr
)) != 0) {
254 input_to_index
[attr
] = stvp
->num_inputs
;
255 stvp
->index_to_input
[stvp
->num_inputs
] = attr
;
257 if ((stvp
->Base
.info
.double_inputs_read
&
258 BITFIELD64_BIT(attr
)) != 0) {
259 /* add placeholder for second part of a double attribute */
260 stvp
->index_to_input
[stvp
->num_inputs
] = ST_DOUBLE_ATTRIB_PLACEHOLDER
;
265 /* bit of a hack, presetup potentially unused edgeflag input */
266 input_to_index
[VERT_ATTRIB_EDGEFLAG
] = stvp
->num_inputs
;
267 stvp
->index_to_input
[stvp
->num_inputs
] = VERT_ATTRIB_EDGEFLAG
;
269 /* Compute mapping of vertex program outputs to slots.
271 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
272 if ((stvp
->Base
.info
.outputs_written
& BITFIELD64_BIT(attr
)) == 0) {
273 stvp
->result_to_output
[attr
] = ~0;
276 unsigned slot
= num_outputs
++;
278 stvp
->result_to_output
[attr
] = slot
;
279 output_slot_to_attr
[slot
] = attr
;
282 case VARYING_SLOT_POS
:
283 output_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
284 output_semantic_index
[slot
] = 0;
286 case VARYING_SLOT_COL0
:
287 output_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
288 output_semantic_index
[slot
] = 0;
290 case VARYING_SLOT_COL1
:
291 output_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
292 output_semantic_index
[slot
] = 1;
294 case VARYING_SLOT_BFC0
:
295 output_semantic_name
[slot
] = TGSI_SEMANTIC_BCOLOR
;
296 output_semantic_index
[slot
] = 0;
298 case VARYING_SLOT_BFC1
:
299 output_semantic_name
[slot
] = TGSI_SEMANTIC_BCOLOR
;
300 output_semantic_index
[slot
] = 1;
302 case VARYING_SLOT_FOGC
:
303 output_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
304 output_semantic_index
[slot
] = 0;
306 case VARYING_SLOT_PSIZ
:
307 output_semantic_name
[slot
] = TGSI_SEMANTIC_PSIZE
;
308 output_semantic_index
[slot
] = 0;
310 case VARYING_SLOT_CLIP_DIST0
:
311 output_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
312 output_semantic_index
[slot
] = 0;
314 case VARYING_SLOT_CLIP_DIST1
:
315 output_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
316 output_semantic_index
[slot
] = 1;
318 case VARYING_SLOT_CULL_DIST0
:
319 case VARYING_SLOT_CULL_DIST1
:
320 /* these should have been lowered by GLSL */
323 case VARYING_SLOT_EDGE
:
326 case VARYING_SLOT_CLIP_VERTEX
:
327 output_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPVERTEX
;
328 output_semantic_index
[slot
] = 0;
330 case VARYING_SLOT_LAYER
:
331 output_semantic_name
[slot
] = TGSI_SEMANTIC_LAYER
;
332 output_semantic_index
[slot
] = 0;
334 case VARYING_SLOT_VIEWPORT
:
335 output_semantic_name
[slot
] = TGSI_SEMANTIC_VIEWPORT_INDEX
;
336 output_semantic_index
[slot
] = 0;
339 case VARYING_SLOT_TEX0
:
340 case VARYING_SLOT_TEX1
:
341 case VARYING_SLOT_TEX2
:
342 case VARYING_SLOT_TEX3
:
343 case VARYING_SLOT_TEX4
:
344 case VARYING_SLOT_TEX5
:
345 case VARYING_SLOT_TEX6
:
346 case VARYING_SLOT_TEX7
:
347 if (st
->needs_texcoord_semantic
) {
348 output_semantic_name
[slot
] = TGSI_SEMANTIC_TEXCOORD
;
349 output_semantic_index
[slot
] = attr
- VARYING_SLOT_TEX0
;
353 case VARYING_SLOT_VAR0
:
355 assert(attr
>= VARYING_SLOT_VAR0
||
356 (attr
>= VARYING_SLOT_TEX0
&& attr
<= VARYING_SLOT_TEX7
));
357 output_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
358 output_semantic_index
[slot
] =
359 st_get_generic_varying_index(st
, attr
);
364 /* similar hack to above, presetup potentially unused edgeflag output */
365 stvp
->result_to_output
[VARYING_SLOT_EDGE
] = num_outputs
;
366 output_semantic_name
[num_outputs
] = TGSI_SEMANTIC_EDGEFLAG
;
367 output_semantic_index
[num_outputs
] = 0;
370 if (!stvp
->glsl_to_tgsi
&& !stvp
->shader_program
) {
371 _mesa_remove_output_reads(&stvp
->Base
, PROGRAM_OUTPUT
);
373 /* This determines which states will be updated when the assembly
376 stvp
->affected_states
= ST_NEW_VS_STATE
|
378 ST_NEW_VERTEX_ARRAYS
;
380 if (stvp
->Base
.Parameters
->NumParameters
)
381 stvp
->affected_states
|= ST_NEW_VS_CONSTANTS
;
383 /* No samplers are allowed in ARB_vp. */
386 if (stvp
->shader_program
) {
387 nir_shader
*nir
= st_glsl_to_nir(st
, &stvp
->Base
, stvp
->shader_program
,
390 stvp
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
391 stvp
->tgsi
.ir
.nir
= nir
;
393 st_translate_stream_output_info2(stvp
->shader_program
->xfb_program
->sh
.LinkedTransformFeedback
,
394 stvp
->result_to_output
,
395 &stvp
->tgsi
.stream_output
);
399 ureg
= ureg_create_with_screen(PIPE_SHADER_VERTEX
, st
->pipe
->screen
);
403 if (stvp
->Base
.ClipDistanceArraySize
)
404 ureg_property(ureg
, TGSI_PROPERTY_NUM_CLIPDIST_ENABLED
,
405 stvp
->Base
.ClipDistanceArraySize
);
406 if (stvp
->Base
.CullDistanceArraySize
)
407 ureg_property(ureg
, TGSI_PROPERTY_NUM_CULLDIST_ENABLED
,
408 stvp
->Base
.CullDistanceArraySize
);
410 if (ST_DEBUG
& DEBUG_MESA
) {
411 _mesa_print_program(&stvp
->Base
);
412 _mesa_print_program_parameters(st
->ctx
, &stvp
->Base
);
416 if (stvp
->glsl_to_tgsi
) {
417 error
= st_translate_program(st
->ctx
,
425 NULL
, /* inputSlotToAttr */
426 NULL
, /* input semantic name */
427 NULL
, /* input semantic index */
428 NULL
, /* interp mode */
431 stvp
->result_to_output
,
433 output_semantic_name
,
434 output_semantic_index
);
436 st_translate_stream_output_info(stvp
->glsl_to_tgsi
,
437 stvp
->result_to_output
,
438 &stvp
->tgsi
.stream_output
);
440 free_glsl_to_tgsi_visitor(stvp
->glsl_to_tgsi
);
441 stvp
->glsl_to_tgsi
= NULL
;
443 error
= st_translate_mesa_program(st
->ctx
,
450 NULL
, /* input semantic name */
451 NULL
, /* input semantic index */
455 stvp
->result_to_output
,
456 output_semantic_name
,
457 output_semantic_index
);
460 debug_printf("%s: failed to translate Mesa program:\n", __func__
);
461 _mesa_print_program(&stvp
->Base
);
466 stvp
->tgsi
.tokens
= ureg_get_tokens(ureg
, NULL
);
468 return stvp
->tgsi
.tokens
!= NULL
;
471 static struct st_vp_variant
*
472 st_create_vp_variant(struct st_context
*st
,
473 struct st_vertex_program
*stvp
,
474 const struct st_vp_variant_key
*key
)
476 struct st_vp_variant
*vpv
= CALLOC_STRUCT(st_vp_variant
);
477 struct pipe_context
*pipe
= st
->pipe
;
480 vpv
->tgsi
.stream_output
= stvp
->tgsi
.stream_output
;
481 vpv
->num_inputs
= stvp
->num_inputs
;
483 if (stvp
->tgsi
.type
== PIPE_SHADER_IR_NIR
) {
484 vpv
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
485 vpv
->tgsi
.ir
.nir
= nir_shader_clone(NULL
, stvp
->tgsi
.ir
.nir
);
486 if (key
->clamp_color
)
487 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_clamp_color_outputs
);
488 if (key
->passthrough_edgeflags
)
489 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_passthrough_edgeflags
);
491 st_finalize_nir(st
, &stvp
->Base
, vpv
->tgsi
.ir
.nir
);
493 vpv
->driver_shader
= pipe
->create_vs_state(pipe
, &vpv
->tgsi
);
494 /* driver takes ownership of IR: */
495 vpv
->tgsi
.ir
.nir
= NULL
;
499 vpv
->tgsi
.tokens
= tgsi_dup_tokens(stvp
->tgsi
.tokens
);
501 /* Emulate features. */
502 if (key
->clamp_color
|| key
->passthrough_edgeflags
) {
503 const struct tgsi_token
*tokens
;
505 (key
->clamp_color
? TGSI_EMU_CLAMP_COLOR_OUTPUTS
: 0) |
506 (key
->passthrough_edgeflags
? TGSI_EMU_PASSTHROUGH_EDGEFLAG
: 0);
508 tokens
= tgsi_emulate(vpv
->tgsi
.tokens
, flags
);
511 tgsi_free_tokens(vpv
->tgsi
.tokens
);
512 vpv
->tgsi
.tokens
= tokens
;
514 if (key
->passthrough_edgeflags
)
517 fprintf(stderr
, "mesa: cannot emulate deprecated features\n");
520 if (ST_DEBUG
& DEBUG_TGSI
) {
521 tgsi_dump(vpv
->tgsi
.tokens
, 0);
525 vpv
->driver_shader
= pipe
->create_vs_state(pipe
, &vpv
->tgsi
);
531 * Find/create a vertex program variant.
533 struct st_vp_variant
*
534 st_get_vp_variant(struct st_context
*st
,
535 struct st_vertex_program
*stvp
,
536 const struct st_vp_variant_key
*key
)
538 struct st_vp_variant
*vpv
;
540 /* Search for existing variant */
541 for (vpv
= stvp
->variants
; vpv
; vpv
= vpv
->next
) {
542 if (memcmp(&vpv
->key
, key
, sizeof(*key
)) == 0) {
549 vpv
= st_create_vp_variant(st
, stvp
, key
);
551 /* insert into list */
552 vpv
->next
= stvp
->variants
;
553 stvp
->variants
= vpv
;
562 * Translate a Mesa fragment shader into a TGSI shader.
565 st_translate_fragment_program(struct st_context
*st
,
566 struct st_fragment_program
*stfp
)
568 GLuint outputMapping
[2 * FRAG_RESULT_MAX
];
569 GLuint inputMapping
[VARYING_SLOT_MAX
];
570 GLuint inputSlotToAttr
[VARYING_SLOT_MAX
];
571 GLuint interpMode
[PIPE_MAX_SHADER_INPUTS
]; /* XXX size? */
573 GLbitfield64 inputsRead
;
574 struct ureg_program
*ureg
;
576 GLboolean write_all
= GL_FALSE
;
578 ubyte input_semantic_name
[PIPE_MAX_SHADER_INPUTS
];
579 ubyte input_semantic_index
[PIPE_MAX_SHADER_INPUTS
];
580 uint fs_num_inputs
= 0;
582 ubyte fs_output_semantic_name
[PIPE_MAX_SHADER_OUTPUTS
];
583 ubyte fs_output_semantic_index
[PIPE_MAX_SHADER_OUTPUTS
];
584 uint fs_num_outputs
= 0;
586 memset(inputSlotToAttr
, ~0, sizeof(inputSlotToAttr
));
588 /* Non-GLSL programs: */
589 if (!stfp
->glsl_to_tgsi
&& !stfp
->shader_program
) {
590 _mesa_remove_output_reads(&stfp
->Base
, PROGRAM_OUTPUT
);
591 if (st
->ctx
->Const
.GLSLFragCoordIsSysVal
)
592 _mesa_program_fragment_position_to_sysval(&stfp
->Base
);
594 /* This determines which states will be updated when the assembly
597 * fragment.position and glDrawPixels always use constants.
599 stfp
->affected_states
= ST_NEW_FS_STATE
|
600 ST_NEW_SAMPLE_SHADING
|
604 /* Just set them for ATI_fs unconditionally. */
605 stfp
->affected_states
|= ST_NEW_FS_SAMPLER_VIEWS
|
606 ST_NEW_RENDER_SAMPLERS
;
609 if (stfp
->Base
.SamplersUsed
)
610 stfp
->affected_states
|= ST_NEW_FS_SAMPLER_VIEWS
|
611 ST_NEW_RENDER_SAMPLERS
;
616 * Convert Mesa program inputs to TGSI input register semantics.
618 inputsRead
= stfp
->Base
.info
.inputs_read
;
619 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
620 if ((inputsRead
& BITFIELD64_BIT(attr
)) != 0) {
621 const GLuint slot
= fs_num_inputs
++;
623 inputMapping
[attr
] = slot
;
624 inputSlotToAttr
[slot
] = attr
;
627 case VARYING_SLOT_POS
:
628 input_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
629 input_semantic_index
[slot
] = 0;
630 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
632 case VARYING_SLOT_COL0
:
633 input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
634 input_semantic_index
[slot
] = 0;
635 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
636 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_COLOR
;
638 case VARYING_SLOT_COL1
:
639 input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
640 input_semantic_index
[slot
] = 1;
641 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
642 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_COLOR
;
644 case VARYING_SLOT_FOGC
:
645 input_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
646 input_semantic_index
[slot
] = 0;
647 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
649 case VARYING_SLOT_FACE
:
650 input_semantic_name
[slot
] = TGSI_SEMANTIC_FACE
;
651 input_semantic_index
[slot
] = 0;
652 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
654 case VARYING_SLOT_PRIMITIVE_ID
:
655 input_semantic_name
[slot
] = TGSI_SEMANTIC_PRIMID
;
656 input_semantic_index
[slot
] = 0;
657 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
659 case VARYING_SLOT_LAYER
:
660 input_semantic_name
[slot
] = TGSI_SEMANTIC_LAYER
;
661 input_semantic_index
[slot
] = 0;
662 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
664 case VARYING_SLOT_VIEWPORT
:
665 input_semantic_name
[slot
] = TGSI_SEMANTIC_VIEWPORT_INDEX
;
666 input_semantic_index
[slot
] = 0;
667 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
669 case VARYING_SLOT_CLIP_DIST0
:
670 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
671 input_semantic_index
[slot
] = 0;
672 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
674 case VARYING_SLOT_CLIP_DIST1
:
675 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
676 input_semantic_index
[slot
] = 1;
677 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
679 case VARYING_SLOT_CULL_DIST0
:
680 case VARYING_SLOT_CULL_DIST1
:
681 /* these should have been lowered by GLSL */
684 /* In most cases, there is nothing special about these
685 * inputs, so adopt a convention to use the generic
686 * semantic name and the mesa VARYING_SLOT_ number as the
689 * All that is required is that the vertex shader labels
690 * its own outputs similarly, and that the vertex shader
691 * generates at least every output required by the
692 * fragment shader plus fixed-function hardware (such as
695 * However, some drivers may need us to identify the PNTC and TEXi
696 * varyings if, for example, their capability to replace them with
697 * sprite coordinates is limited.
699 case VARYING_SLOT_PNTC
:
700 if (st
->needs_texcoord_semantic
) {
701 input_semantic_name
[slot
] = TGSI_SEMANTIC_PCOORD
;
702 input_semantic_index
[slot
] = 0;
703 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
707 case VARYING_SLOT_TEX0
:
708 case VARYING_SLOT_TEX1
:
709 case VARYING_SLOT_TEX2
:
710 case VARYING_SLOT_TEX3
:
711 case VARYING_SLOT_TEX4
:
712 case VARYING_SLOT_TEX5
:
713 case VARYING_SLOT_TEX6
:
714 case VARYING_SLOT_TEX7
:
715 if (st
->needs_texcoord_semantic
) {
716 input_semantic_name
[slot
] = TGSI_SEMANTIC_TEXCOORD
;
717 input_semantic_index
[slot
] = attr
- VARYING_SLOT_TEX0
;
718 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
719 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_PERSPECTIVE
;
723 case VARYING_SLOT_VAR0
:
725 /* Semantic indices should be zero-based because drivers may choose
726 * to assign a fixed slot determined by that index.
727 * This is useful because ARB_separate_shader_objects uses location
728 * qualifiers for linkage, and if the semantic index corresponds to
729 * these locations, linkage passes in the driver become unecessary.
731 * If needs_texcoord_semantic is true, no semantic indices will be
732 * consumed for the TEXi varyings, and we can base the locations of
733 * the user varyings on VAR0. Otherwise, we use TEX0 as base index.
735 assert(attr
>= VARYING_SLOT_VAR0
|| attr
== VARYING_SLOT_PNTC
||
736 (attr
>= VARYING_SLOT_TEX0
&& attr
<= VARYING_SLOT_TEX7
));
737 input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
738 input_semantic_index
[slot
] = st_get_generic_varying_index(st
, attr
);
739 if (attr
== VARYING_SLOT_PNTC
)
740 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
742 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
743 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_PERSPECTIVE
;
749 inputMapping
[attr
] = -1;
754 * Semantics and mapping for outputs
757 GLbitfield64 outputsWritten
= stfp
->Base
.info
.outputs_written
;
759 /* if z is written, emit that first */
760 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_DEPTH
)) {
761 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_POSITION
;
762 fs_output_semantic_index
[fs_num_outputs
] = 0;
763 outputMapping
[FRAG_RESULT_DEPTH
] = fs_num_outputs
;
765 outputsWritten
&= ~(1 << FRAG_RESULT_DEPTH
);
768 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_STENCIL
)) {
769 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_STENCIL
;
770 fs_output_semantic_index
[fs_num_outputs
] = 0;
771 outputMapping
[FRAG_RESULT_STENCIL
] = fs_num_outputs
;
773 outputsWritten
&= ~(1 << FRAG_RESULT_STENCIL
);
776 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_SAMPLE_MASK
)) {
777 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_SAMPLEMASK
;
778 fs_output_semantic_index
[fs_num_outputs
] = 0;
779 outputMapping
[FRAG_RESULT_SAMPLE_MASK
] = fs_num_outputs
;
781 outputsWritten
&= ~(1 << FRAG_RESULT_SAMPLE_MASK
);
784 /* handle remaining outputs (color) */
785 for (attr
= 0; attr
< ARRAY_SIZE(outputMapping
); attr
++) {
786 const GLbitfield64 written
= attr
< FRAG_RESULT_MAX
? outputsWritten
:
787 stfp
->Base
.SecondaryOutputsWritten
;
788 const unsigned loc
= attr
% FRAG_RESULT_MAX
;
790 if (written
& BITFIELD64_BIT(loc
)) {
792 case FRAG_RESULT_DEPTH
:
793 case FRAG_RESULT_STENCIL
:
794 case FRAG_RESULT_SAMPLE_MASK
:
798 case FRAG_RESULT_COLOR
:
799 write_all
= GL_TRUE
; /* fallthrough */
802 assert(loc
== FRAG_RESULT_COLOR
||
803 (FRAG_RESULT_DATA0
<= loc
&& loc
< FRAG_RESULT_MAX
));
805 index
= (loc
== FRAG_RESULT_COLOR
) ? 0 : (loc
- FRAG_RESULT_DATA0
);
807 if (attr
>= FRAG_RESULT_MAX
) {
808 /* Secondary color for dual source blending. */
813 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_COLOR
;
814 fs_output_semantic_index
[fs_num_outputs
] = index
;
815 outputMapping
[attr
] = fs_num_outputs
;
825 if (stfp
->shader_program
) {
826 nir_shader
*nir
= st_glsl_to_nir(st
, &stfp
->Base
, stfp
->shader_program
,
827 MESA_SHADER_FRAGMENT
);
829 stfp
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
830 stfp
->tgsi
.ir
.nir
= nir
;
835 ureg
= ureg_create_with_screen(PIPE_SHADER_FRAGMENT
, st
->pipe
->screen
);
839 if (ST_DEBUG
& DEBUG_MESA
) {
840 _mesa_print_program(&stfp
->Base
);
841 _mesa_print_program_parameters(st
->ctx
, &stfp
->Base
);
844 if (write_all
== GL_TRUE
)
845 ureg_property(ureg
, TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
, 1);
847 if (stfp
->Base
.info
.fs
.depth_layout
!= FRAG_DEPTH_LAYOUT_NONE
) {
848 switch (stfp
->Base
.info
.fs
.depth_layout
) {
849 case FRAG_DEPTH_LAYOUT_ANY
:
850 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
851 TGSI_FS_DEPTH_LAYOUT_ANY
);
853 case FRAG_DEPTH_LAYOUT_GREATER
:
854 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
855 TGSI_FS_DEPTH_LAYOUT_GREATER
);
857 case FRAG_DEPTH_LAYOUT_LESS
:
858 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
859 TGSI_FS_DEPTH_LAYOUT_LESS
);
861 case FRAG_DEPTH_LAYOUT_UNCHANGED
:
862 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
863 TGSI_FS_DEPTH_LAYOUT_UNCHANGED
);
870 if (stfp
->glsl_to_tgsi
) {
871 st_translate_program(st
->ctx
,
872 PIPE_SHADER_FRAGMENT
,
881 input_semantic_index
,
887 fs_output_semantic_name
,
888 fs_output_semantic_index
);
890 free_glsl_to_tgsi_visitor(stfp
->glsl_to_tgsi
);
891 stfp
->glsl_to_tgsi
= NULL
;
892 } else if (stfp
->ati_fs
)
893 st_translate_atifs_program(ureg
,
900 input_semantic_index
,
905 fs_output_semantic_name
,
906 fs_output_semantic_index
);
908 st_translate_mesa_program(st
->ctx
,
909 PIPE_SHADER_FRAGMENT
,
916 input_semantic_index
,
921 fs_output_semantic_name
,
922 fs_output_semantic_index
);
924 stfp
->tgsi
.tokens
= ureg_get_tokens(ureg
, NULL
);
926 return stfp
->tgsi
.tokens
!= NULL
;
929 static struct st_fp_variant
*
930 st_create_fp_variant(struct st_context
*st
,
931 struct st_fragment_program
*stfp
,
932 const struct st_fp_variant_key
*key
)
934 struct pipe_context
*pipe
= st
->pipe
;
935 struct st_fp_variant
*variant
= CALLOC_STRUCT(st_fp_variant
);
936 struct pipe_shader_state tgsi
= {0};
937 struct gl_program_parameter_list
*params
= stfp
->Base
.Parameters
;
938 static const gl_state_index texcoord_state
[STATE_LENGTH
] =
939 { STATE_INTERNAL
, STATE_CURRENT_ATTRIB
, VERT_ATTRIB_TEX0
};
940 static const gl_state_index scale_state
[STATE_LENGTH
] =
941 { STATE_INTERNAL
, STATE_PT_SCALE
};
942 static const gl_state_index bias_state
[STATE_LENGTH
] =
943 { STATE_INTERNAL
, STATE_PT_BIAS
};
948 if (stfp
->tgsi
.type
== PIPE_SHADER_IR_NIR
) {
949 tgsi
.type
= PIPE_SHADER_IR_NIR
;
950 tgsi
.ir
.nir
= nir_shader_clone(NULL
, stfp
->tgsi
.ir
.nir
);
952 if (key
->clamp_color
)
953 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_clamp_color_outputs
);
955 if (key
->persample_shading
) {
956 nir_shader
*shader
= tgsi
.ir
.nir
;
957 nir_foreach_variable(var
, &shader
->inputs
)
958 var
->data
.sample
= true;
961 assert(!(key
->bitmap
&& key
->drawpixels
));
965 nir_lower_bitmap_options options
= {0};
967 variant
->bitmap_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
968 options
.sampler
= variant
->bitmap_sampler
;
969 options
.swizzle_xxxx
= (st
->bitmap
.tex_format
== PIPE_FORMAT_L8_UNORM
);
971 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_bitmap
, &options
);
974 /* glDrawPixels (color only) */
975 if (key
->drawpixels
) {
976 nir_lower_drawpixels_options options
= {{0}};
977 unsigned samplers_used
= stfp
->Base
.SamplersUsed
;
979 /* Find the first unused slot. */
980 variant
->drawpix_sampler
= ffs(~samplers_used
) - 1;
981 options
.drawpix_sampler
= variant
->drawpix_sampler
;
982 samplers_used
|= (1 << variant
->drawpix_sampler
);
984 options
.pixel_maps
= key
->pixelMaps
;
985 if (key
->pixelMaps
) {
986 variant
->pixelmap_sampler
= ffs(~samplers_used
) - 1;
987 options
.pixelmap_sampler
= variant
->pixelmap_sampler
;
990 options
.scale_and_bias
= key
->scaleAndBias
;
991 if (key
->scaleAndBias
) {
992 _mesa_add_state_reference(params
, scale_state
);
993 memcpy(options
.scale_state_tokens
, scale_state
,
994 sizeof(options
.scale_state_tokens
));
995 _mesa_add_state_reference(params
, bias_state
);
996 memcpy(options
.bias_state_tokens
, bias_state
,
997 sizeof(options
.bias_state_tokens
));
1000 _mesa_add_state_reference(params
, texcoord_state
);
1001 memcpy(options
.texcoord_state_tokens
, texcoord_state
,
1002 sizeof(options
.texcoord_state_tokens
));
1004 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_drawpixels
, &options
);
1007 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
)) {
1008 nir_lower_tex_options options
= {0};
1009 options
.lower_y_uv_external
= key
->external
.lower_nv12
;
1010 options
.lower_y_u_v_external
= key
->external
.lower_iyuv
;
1011 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_tex
, &options
);
1014 st_finalize_nir(st
, &stfp
->Base
, tgsi
.ir
.nir
);
1016 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
)) {
1017 /* This pass needs to happen *after* nir_lower_sampler */
1018 NIR_PASS_V(tgsi
.ir
.nir
, st_nir_lower_tex_src_plane
,
1019 ~stfp
->Base
.SamplersUsed
,
1020 key
->external
.lower_nv12
,
1021 key
->external
.lower_iyuv
);
1024 variant
->driver_shader
= pipe
->create_fs_state(pipe
, &tgsi
);
1025 variant
->key
= *key
;
1030 tgsi
.tokens
= stfp
->tgsi
.tokens
;
1032 assert(!(key
->bitmap
&& key
->drawpixels
));
1034 /* Fix texture targets and add fog for ATI_fs */
1036 const struct tgsi_token
*tokens
= st_fixup_atifs(tgsi
.tokens
, key
);
1039 tgsi
.tokens
= tokens
;
1041 fprintf(stderr
, "mesa: cannot post-process ATI_fs\n");
1044 /* Emulate features. */
1045 if (key
->clamp_color
|| key
->persample_shading
) {
1046 const struct tgsi_token
*tokens
;
1048 (key
->clamp_color
? TGSI_EMU_CLAMP_COLOR_OUTPUTS
: 0) |
1049 (key
->persample_shading
? TGSI_EMU_FORCE_PERSAMPLE_INTERP
: 0);
1051 tokens
= tgsi_emulate(tgsi
.tokens
, flags
);
1054 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1055 tgsi_free_tokens(tgsi
.tokens
);
1056 tgsi
.tokens
= tokens
;
1058 fprintf(stderr
, "mesa: cannot emulate deprecated features\n");
1063 const struct tgsi_token
*tokens
;
1065 variant
->bitmap_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
1067 tokens
= st_get_bitmap_shader(tgsi
.tokens
,
1068 st
->internal_target
,
1069 variant
->bitmap_sampler
,
1070 st
->needs_texcoord_semantic
,
1071 st
->bitmap
.tex_format
==
1072 PIPE_FORMAT_L8_UNORM
);
1075 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1076 tgsi_free_tokens(tgsi
.tokens
);
1077 tgsi
.tokens
= tokens
;
1079 fprintf(stderr
, "mesa: cannot create a shader for glBitmap\n");
1082 /* glDrawPixels (color only) */
1083 if (key
->drawpixels
) {
1084 const struct tgsi_token
*tokens
;
1085 unsigned scale_const
= 0, bias_const
= 0, texcoord_const
= 0;
1087 /* Find the first unused slot. */
1088 variant
->drawpix_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
1090 if (key
->pixelMaps
) {
1091 unsigned samplers_used
= stfp
->Base
.SamplersUsed
|
1092 (1 << variant
->drawpix_sampler
);
1094 variant
->pixelmap_sampler
= ffs(~samplers_used
) - 1;
1097 if (key
->scaleAndBias
) {
1098 scale_const
= _mesa_add_state_reference(params
, scale_state
);
1099 bias_const
= _mesa_add_state_reference(params
, bias_state
);
1102 texcoord_const
= _mesa_add_state_reference(params
, texcoord_state
);
1104 tokens
= st_get_drawpix_shader(tgsi
.tokens
,
1105 st
->needs_texcoord_semantic
,
1106 key
->scaleAndBias
, scale_const
,
1107 bias_const
, key
->pixelMaps
,
1108 variant
->drawpix_sampler
,
1109 variant
->pixelmap_sampler
,
1110 texcoord_const
, st
->internal_target
);
1113 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1114 tgsi_free_tokens(tgsi
.tokens
);
1115 tgsi
.tokens
= tokens
;
1117 fprintf(stderr
, "mesa: cannot create a shader for glDrawPixels\n");
1120 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
)) {
1121 const struct tgsi_token
*tokens
;
1123 /* samplers inserted would conflict, but this should be unpossible: */
1124 assert(!(key
->bitmap
|| key
->drawpixels
));
1126 tokens
= st_tgsi_lower_yuv(tgsi
.tokens
,
1127 ~stfp
->Base
.SamplersUsed
,
1128 key
->external
.lower_nv12
,
1129 key
->external
.lower_iyuv
);
1131 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1132 tgsi_free_tokens(tgsi
.tokens
);
1133 tgsi
.tokens
= tokens
;
1135 fprintf(stderr
, "mesa: cannot create a shader for samplerExternalOES\n");
1139 if (ST_DEBUG
& DEBUG_TGSI
) {
1140 tgsi_dump(tgsi
.tokens
, 0);
1144 /* fill in variant */
1145 variant
->driver_shader
= pipe
->create_fs_state(pipe
, &tgsi
);
1146 variant
->key
= *key
;
1148 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1149 tgsi_free_tokens(tgsi
.tokens
);
1154 * Translate fragment program if needed.
1156 struct st_fp_variant
*
1157 st_get_fp_variant(struct st_context
*st
,
1158 struct st_fragment_program
*stfp
,
1159 const struct st_fp_variant_key
*key
)
1161 struct st_fp_variant
*fpv
;
1163 /* Search for existing variant */
1164 for (fpv
= stfp
->variants
; fpv
; fpv
= fpv
->next
) {
1165 if (memcmp(&fpv
->key
, key
, sizeof(*key
)) == 0) {
1172 fpv
= st_create_fp_variant(st
, stfp
, key
);
1174 /* insert into list */
1175 fpv
->next
= stfp
->variants
;
1176 stfp
->variants
= fpv
;
1185 * Translate a program. This is common code for geometry and tessellation
1189 st_translate_program_common(struct st_context
*st
,
1190 struct gl_program
*prog
,
1191 struct glsl_to_tgsi_visitor
*glsl_to_tgsi
,
1192 struct ureg_program
*ureg
,
1193 unsigned tgsi_processor
,
1194 struct pipe_shader_state
*out_state
)
1196 GLuint inputSlotToAttr
[VARYING_SLOT_TESS_MAX
];
1197 GLuint inputMapping
[VARYING_SLOT_TESS_MAX
];
1198 GLuint outputSlotToAttr
[VARYING_SLOT_TESS_MAX
];
1199 GLuint outputMapping
[VARYING_SLOT_TESS_MAX
];
1202 ubyte input_semantic_name
[PIPE_MAX_SHADER_INPUTS
];
1203 ubyte input_semantic_index
[PIPE_MAX_SHADER_INPUTS
];
1204 uint num_inputs
= 0;
1206 ubyte output_semantic_name
[PIPE_MAX_SHADER_OUTPUTS
];
1207 ubyte output_semantic_index
[PIPE_MAX_SHADER_OUTPUTS
];
1208 uint num_outputs
= 0;
1212 memset(inputSlotToAttr
, 0, sizeof(inputSlotToAttr
));
1213 memset(inputMapping
, 0, sizeof(inputMapping
));
1214 memset(outputSlotToAttr
, 0, sizeof(outputSlotToAttr
));
1215 memset(outputMapping
, 0, sizeof(outputMapping
));
1216 memset(out_state
, 0, sizeof(*out_state
));
1218 if (prog
->ClipDistanceArraySize
)
1219 ureg_property(ureg
, TGSI_PROPERTY_NUM_CLIPDIST_ENABLED
,
1220 prog
->ClipDistanceArraySize
);
1221 if (prog
->CullDistanceArraySize
)
1222 ureg_property(ureg
, TGSI_PROPERTY_NUM_CULLDIST_ENABLED
,
1223 prog
->CullDistanceArraySize
);
1226 * Convert Mesa program inputs to TGSI input register semantics.
1228 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
1229 if ((prog
->info
.inputs_read
& BITFIELD64_BIT(attr
)) != 0) {
1230 const GLuint slot
= num_inputs
++;
1232 inputMapping
[attr
] = slot
;
1233 inputSlotToAttr
[slot
] = attr
;
1236 case VARYING_SLOT_PRIMITIVE_ID
:
1237 assert(tgsi_processor
== PIPE_SHADER_GEOMETRY
);
1238 input_semantic_name
[slot
] = TGSI_SEMANTIC_PRIMID
;
1239 input_semantic_index
[slot
] = 0;
1241 case VARYING_SLOT_POS
:
1242 input_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
1243 input_semantic_index
[slot
] = 0;
1245 case VARYING_SLOT_COL0
:
1246 input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
1247 input_semantic_index
[slot
] = 0;
1249 case VARYING_SLOT_COL1
:
1250 input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
1251 input_semantic_index
[slot
] = 1;
1253 case VARYING_SLOT_FOGC
:
1254 input_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
1255 input_semantic_index
[slot
] = 0;
1257 case VARYING_SLOT_CLIP_VERTEX
:
1258 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPVERTEX
;
1259 input_semantic_index
[slot
] = 0;
1261 case VARYING_SLOT_CLIP_DIST0
:
1262 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
1263 input_semantic_index
[slot
] = 0;
1265 case VARYING_SLOT_CLIP_DIST1
:
1266 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
1267 input_semantic_index
[slot
] = 1;
1269 case VARYING_SLOT_CULL_DIST0
:
1270 case VARYING_SLOT_CULL_DIST1
:
1271 /* these should have been lowered by GLSL */
1274 case VARYING_SLOT_PSIZ
:
1275 input_semantic_name
[slot
] = TGSI_SEMANTIC_PSIZE
;
1276 input_semantic_index
[slot
] = 0;
1278 case VARYING_SLOT_TEX0
:
1279 case VARYING_SLOT_TEX1
:
1280 case VARYING_SLOT_TEX2
:
1281 case VARYING_SLOT_TEX3
:
1282 case VARYING_SLOT_TEX4
:
1283 case VARYING_SLOT_TEX5
:
1284 case VARYING_SLOT_TEX6
:
1285 case VARYING_SLOT_TEX7
:
1286 if (st
->needs_texcoord_semantic
) {
1287 input_semantic_name
[slot
] = TGSI_SEMANTIC_TEXCOORD
;
1288 input_semantic_index
[slot
] = attr
- VARYING_SLOT_TEX0
;
1292 case VARYING_SLOT_VAR0
:
1294 assert(attr
>= VARYING_SLOT_VAR0
||
1295 (attr
>= VARYING_SLOT_TEX0
&& attr
<= VARYING_SLOT_TEX7
));
1296 input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
1297 input_semantic_index
[slot
] =
1298 st_get_generic_varying_index(st
, attr
);
1304 /* Also add patch inputs. */
1305 for (attr
= 0; attr
< 32; attr
++) {
1306 if (prog
->info
.patch_inputs_read
& (1u << attr
)) {
1307 GLuint slot
= num_inputs
++;
1308 GLuint patch_attr
= VARYING_SLOT_PATCH0
+ attr
;
1310 inputMapping
[patch_attr
] = slot
;
1311 inputSlotToAttr
[slot
] = patch_attr
;
1312 input_semantic_name
[slot
] = TGSI_SEMANTIC_PATCH
;
1313 input_semantic_index
[slot
] = attr
;
1317 /* initialize output semantics to defaults */
1318 for (i
= 0; i
< PIPE_MAX_SHADER_OUTPUTS
; i
++) {
1319 output_semantic_name
[i
] = TGSI_SEMANTIC_GENERIC
;
1320 output_semantic_index
[i
] = 0;
1324 * Determine number of outputs, the (default) output register
1325 * mapping and the semantic information for each output.
1327 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
1328 if (prog
->info
.outputs_written
& BITFIELD64_BIT(attr
)) {
1329 GLuint slot
= num_outputs
++;
1331 outputMapping
[attr
] = slot
;
1332 outputSlotToAttr
[slot
] = attr
;
1335 case VARYING_SLOT_POS
:
1337 output_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
1338 output_semantic_index
[slot
] = 0;
1340 case VARYING_SLOT_COL0
:
1341 output_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
1342 output_semantic_index
[slot
] = 0;
1344 case VARYING_SLOT_COL1
:
1345 output_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
1346 output_semantic_index
[slot
] = 1;
1348 case VARYING_SLOT_BFC0
:
1349 output_semantic_name
[slot
] = TGSI_SEMANTIC_BCOLOR
;
1350 output_semantic_index
[slot
] = 0;
1352 case VARYING_SLOT_BFC1
:
1353 output_semantic_name
[slot
] = TGSI_SEMANTIC_BCOLOR
;
1354 output_semantic_index
[slot
] = 1;
1356 case VARYING_SLOT_FOGC
:
1357 output_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
1358 output_semantic_index
[slot
] = 0;
1360 case VARYING_SLOT_PSIZ
:
1361 output_semantic_name
[slot
] = TGSI_SEMANTIC_PSIZE
;
1362 output_semantic_index
[slot
] = 0;
1364 case VARYING_SLOT_CLIP_VERTEX
:
1365 output_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPVERTEX
;
1366 output_semantic_index
[slot
] = 0;
1368 case VARYING_SLOT_CLIP_DIST0
:
1369 output_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
1370 output_semantic_index
[slot
] = 0;
1372 case VARYING_SLOT_CLIP_DIST1
:
1373 output_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
1374 output_semantic_index
[slot
] = 1;
1376 case VARYING_SLOT_CULL_DIST0
:
1377 case VARYING_SLOT_CULL_DIST1
:
1378 /* these should have been lowered by GLSL */
1381 case VARYING_SLOT_LAYER
:
1382 output_semantic_name
[slot
] = TGSI_SEMANTIC_LAYER
;
1383 output_semantic_index
[slot
] = 0;
1385 case VARYING_SLOT_PRIMITIVE_ID
:
1386 output_semantic_name
[slot
] = TGSI_SEMANTIC_PRIMID
;
1387 output_semantic_index
[slot
] = 0;
1389 case VARYING_SLOT_VIEWPORT
:
1390 output_semantic_name
[slot
] = TGSI_SEMANTIC_VIEWPORT_INDEX
;
1391 output_semantic_index
[slot
] = 0;
1393 case VARYING_SLOT_TESS_LEVEL_OUTER
:
1394 output_semantic_name
[slot
] = TGSI_SEMANTIC_TESSOUTER
;
1395 output_semantic_index
[slot
] = 0;
1397 case VARYING_SLOT_TESS_LEVEL_INNER
:
1398 output_semantic_name
[slot
] = TGSI_SEMANTIC_TESSINNER
;
1399 output_semantic_index
[slot
] = 0;
1401 case VARYING_SLOT_TEX0
:
1402 case VARYING_SLOT_TEX1
:
1403 case VARYING_SLOT_TEX2
:
1404 case VARYING_SLOT_TEX3
:
1405 case VARYING_SLOT_TEX4
:
1406 case VARYING_SLOT_TEX5
:
1407 case VARYING_SLOT_TEX6
:
1408 case VARYING_SLOT_TEX7
:
1409 if (st
->needs_texcoord_semantic
) {
1410 output_semantic_name
[slot
] = TGSI_SEMANTIC_TEXCOORD
;
1411 output_semantic_index
[slot
] = attr
- VARYING_SLOT_TEX0
;
1415 case VARYING_SLOT_VAR0
:
1417 assert(slot
< ARRAY_SIZE(output_semantic_name
));
1418 assert(attr
>= VARYING_SLOT_VAR0
||
1419 (attr
>= VARYING_SLOT_TEX0
&& attr
<= VARYING_SLOT_TEX7
));
1420 output_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
1421 output_semantic_index
[slot
] =
1422 st_get_generic_varying_index(st
, attr
);
1428 /* Also add patch outputs. */
1429 for (attr
= 0; attr
< 32; attr
++) {
1430 if (prog
->info
.patch_outputs_written
& (1u << attr
)) {
1431 GLuint slot
= num_outputs
++;
1432 GLuint patch_attr
= VARYING_SLOT_PATCH0
+ attr
;
1434 outputMapping
[patch_attr
] = slot
;
1435 outputSlotToAttr
[slot
] = patch_attr
;
1436 output_semantic_name
[slot
] = TGSI_SEMANTIC_PATCH
;
1437 output_semantic_index
[slot
] = attr
;
1441 st_translate_program(st
->ctx
,
1450 input_semantic_name
,
1451 input_semantic_index
,
1457 output_semantic_name
,
1458 output_semantic_index
);
1460 out_state
->tokens
= ureg_get_tokens(ureg
, NULL
);
1463 st_translate_stream_output_info(glsl_to_tgsi
,
1465 &out_state
->stream_output
);
1467 if ((ST_DEBUG
& DEBUG_TGSI
) && (ST_DEBUG
& DEBUG_MESA
)) {
1468 _mesa_print_program(prog
);
1472 if (ST_DEBUG
& DEBUG_TGSI
) {
1473 tgsi_dump(out_state
->tokens
, 0);
1480 * Translate a geometry program to create a new variant.
1483 st_translate_geometry_program(struct st_context
*st
,
1484 struct st_geometry_program
*stgp
)
1486 struct ureg_program
*ureg
;
1488 ureg
= ureg_create_with_screen(PIPE_SHADER_GEOMETRY
, st
->pipe
->screen
);
1492 ureg_property(ureg
, TGSI_PROPERTY_GS_INPUT_PRIM
,
1493 stgp
->Base
.info
.gs
.input_primitive
);
1494 ureg_property(ureg
, TGSI_PROPERTY_GS_OUTPUT_PRIM
,
1495 stgp
->Base
.info
.gs
.output_primitive
);
1496 ureg_property(ureg
, TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES
,
1497 stgp
->Base
.info
.gs
.vertices_out
);
1498 ureg_property(ureg
, TGSI_PROPERTY_GS_INVOCATIONS
,
1499 stgp
->Base
.info
.gs
.invocations
);
1501 st_translate_program_common(st
, &stgp
->Base
, stgp
->glsl_to_tgsi
, ureg
,
1502 PIPE_SHADER_GEOMETRY
, &stgp
->tgsi
);
1504 free_glsl_to_tgsi_visitor(stgp
->glsl_to_tgsi
);
1505 stgp
->glsl_to_tgsi
= NULL
;
1511 * Get/create a basic program variant.
1513 struct st_basic_variant
*
1514 st_get_basic_variant(struct st_context
*st
,
1515 unsigned pipe_shader
,
1516 struct pipe_shader_state
*tgsi
,
1517 struct st_basic_variant
**variants
)
1519 struct pipe_context
*pipe
= st
->pipe
;
1520 struct st_basic_variant
*v
;
1521 struct st_basic_variant_key key
;
1523 memset(&key
, 0, sizeof(key
));
1524 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
1526 /* Search for existing variant */
1527 for (v
= *variants
; v
; v
= v
->next
) {
1528 if (memcmp(&v
->key
, &key
, sizeof(key
)) == 0) {
1535 v
= CALLOC_STRUCT(st_basic_variant
);
1537 /* fill in new variant */
1538 switch (pipe_shader
) {
1539 case PIPE_SHADER_TESS_CTRL
:
1540 v
->driver_shader
= pipe
->create_tcs_state(pipe
, tgsi
);
1542 case PIPE_SHADER_TESS_EVAL
:
1543 v
->driver_shader
= pipe
->create_tes_state(pipe
, tgsi
);
1545 case PIPE_SHADER_GEOMETRY
:
1546 v
->driver_shader
= pipe
->create_gs_state(pipe
, tgsi
);
1549 assert(!"unhandled shader type");
1556 /* insert into list */
1557 v
->next
= *variants
;
1567 * Translate a tessellation control program to create a new variant.
1570 st_translate_tessctrl_program(struct st_context
*st
,
1571 struct st_tessctrl_program
*sttcp
)
1573 struct ureg_program
*ureg
;
1575 ureg
= ureg_create_with_screen(PIPE_SHADER_TESS_CTRL
, st
->pipe
->screen
);
1579 ureg_property(ureg
, TGSI_PROPERTY_TCS_VERTICES_OUT
,
1580 sttcp
->Base
.info
.tcs
.vertices_out
);
1582 st_translate_program_common(st
, &sttcp
->Base
, sttcp
->glsl_to_tgsi
, ureg
,
1583 PIPE_SHADER_TESS_CTRL
, &sttcp
->tgsi
);
1585 free_glsl_to_tgsi_visitor(sttcp
->glsl_to_tgsi
);
1586 sttcp
->glsl_to_tgsi
= NULL
;
1592 * Translate a tessellation evaluation program to create a new variant.
1595 st_translate_tesseval_program(struct st_context
*st
,
1596 struct st_tesseval_program
*sttep
)
1598 struct ureg_program
*ureg
;
1600 ureg
= ureg_create_with_screen(PIPE_SHADER_TESS_EVAL
, st
->pipe
->screen
);
1604 if (sttep
->Base
.info
.tes
.primitive_mode
== GL_ISOLINES
)
1605 ureg_property(ureg
, TGSI_PROPERTY_TES_PRIM_MODE
, GL_LINES
);
1607 ureg_property(ureg
, TGSI_PROPERTY_TES_PRIM_MODE
,
1608 sttep
->Base
.info
.tes
.primitive_mode
);
1610 switch (sttep
->Base
.info
.tes
.spacing
) {
1612 ureg_property(ureg
, TGSI_PROPERTY_TES_SPACING
, PIPE_TESS_SPACING_EQUAL
);
1614 case GL_FRACTIONAL_EVEN
:
1615 ureg_property(ureg
, TGSI_PROPERTY_TES_SPACING
,
1616 PIPE_TESS_SPACING_FRACTIONAL_EVEN
);
1618 case GL_FRACTIONAL_ODD
:
1619 ureg_property(ureg
, TGSI_PROPERTY_TES_SPACING
,
1620 PIPE_TESS_SPACING_FRACTIONAL_ODD
);
1626 ureg_property(ureg
, TGSI_PROPERTY_TES_VERTEX_ORDER_CW
,
1627 sttep
->Base
.info
.tes
.vertex_order
== GL_CW
);
1628 ureg_property(ureg
, TGSI_PROPERTY_TES_POINT_MODE
,
1629 sttep
->Base
.info
.tes
.point_mode
);
1631 st_translate_program_common(st
, &sttep
->Base
, sttep
->glsl_to_tgsi
,
1632 ureg
, PIPE_SHADER_TESS_EVAL
, &sttep
->tgsi
);
1634 free_glsl_to_tgsi_visitor(sttep
->glsl_to_tgsi
);
1635 sttep
->glsl_to_tgsi
= NULL
;
1641 * Translate a compute program to create a new variant.
1644 st_translate_compute_program(struct st_context
*st
,
1645 struct st_compute_program
*stcp
)
1647 struct ureg_program
*ureg
;
1648 struct pipe_shader_state prog
;
1650 ureg
= ureg_create_with_screen(PIPE_SHADER_COMPUTE
, st
->pipe
->screen
);
1654 st_translate_program_common(st
, &stcp
->Base
, stcp
->glsl_to_tgsi
, ureg
,
1655 PIPE_SHADER_COMPUTE
, &prog
);
1657 stcp
->tgsi
.ir_type
= PIPE_SHADER_IR_TGSI
;
1658 stcp
->tgsi
.prog
= prog
.tokens
;
1659 stcp
->tgsi
.req_local_mem
= stcp
->Base
.info
.cs
.shared_size
;
1660 stcp
->tgsi
.req_private_mem
= 0;
1661 stcp
->tgsi
.req_input_mem
= 0;
1663 free_glsl_to_tgsi_visitor(stcp
->glsl_to_tgsi
);
1664 stcp
->glsl_to_tgsi
= NULL
;
1670 * Get/create compute program variant.
1672 struct st_basic_variant
*
1673 st_get_cp_variant(struct st_context
*st
,
1674 struct pipe_compute_state
*tgsi
,
1675 struct st_basic_variant
**variants
)
1677 struct pipe_context
*pipe
= st
->pipe
;
1678 struct st_basic_variant
*v
;
1679 struct st_basic_variant_key key
;
1681 memset(&key
, 0, sizeof(key
));
1682 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
1684 /* Search for existing variant */
1685 for (v
= *variants
; v
; v
= v
->next
) {
1686 if (memcmp(&v
->key
, &key
, sizeof(key
)) == 0) {
1693 v
= CALLOC_STRUCT(st_basic_variant
);
1695 /* fill in new variant */
1696 v
->driver_shader
= pipe
->create_compute_state(pipe
, tgsi
);
1699 /* insert into list */
1700 v
->next
= *variants
;
1710 * Vert/Geom/Frag programs have per-context variants. Free all the
1711 * variants attached to the given program which match the given context.
1714 destroy_program_variants(struct st_context
*st
, struct gl_program
*target
)
1716 if (!target
|| target
== &_mesa_DummyProgram
)
1719 switch (target
->Target
) {
1720 case GL_VERTEX_PROGRAM_ARB
:
1722 struct st_vertex_program
*stvp
= (struct st_vertex_program
*) target
;
1723 struct st_vp_variant
*vpv
, **prevPtr
= &stvp
->variants
;
1725 for (vpv
= stvp
->variants
; vpv
; ) {
1726 struct st_vp_variant
*next
= vpv
->next
;
1727 if (vpv
->key
.st
== st
) {
1728 /* unlink from list */
1730 /* destroy this variant */
1731 delete_vp_variant(st
, vpv
);
1734 prevPtr
= &vpv
->next
;
1740 case GL_FRAGMENT_PROGRAM_ARB
:
1742 struct st_fragment_program
*stfp
=
1743 (struct st_fragment_program
*) target
;
1744 struct st_fp_variant
*fpv
, **prevPtr
= &stfp
->variants
;
1746 for (fpv
= stfp
->variants
; fpv
; ) {
1747 struct st_fp_variant
*next
= fpv
->next
;
1748 if (fpv
->key
.st
== st
) {
1749 /* unlink from list */
1751 /* destroy this variant */
1752 delete_fp_variant(st
, fpv
);
1755 prevPtr
= &fpv
->next
;
1761 case GL_GEOMETRY_PROGRAM_NV
:
1762 case GL_TESS_CONTROL_PROGRAM_NV
:
1763 case GL_TESS_EVALUATION_PROGRAM_NV
:
1764 case GL_COMPUTE_PROGRAM_NV
:
1766 struct st_geometry_program
*gp
= (struct st_geometry_program
*)target
;
1767 struct st_tessctrl_program
*tcp
= (struct st_tessctrl_program
*)target
;
1768 struct st_tesseval_program
*tep
= (struct st_tesseval_program
*)target
;
1769 struct st_compute_program
*cp
= (struct st_compute_program
*)target
;
1770 struct st_basic_variant
**variants
=
1771 target
->Target
== GL_GEOMETRY_PROGRAM_NV
? &gp
->variants
:
1772 target
->Target
== GL_TESS_CONTROL_PROGRAM_NV
? &tcp
->variants
:
1773 target
->Target
== GL_TESS_EVALUATION_PROGRAM_NV
? &tep
->variants
:
1774 target
->Target
== GL_COMPUTE_PROGRAM_NV
? &cp
->variants
:
1776 struct st_basic_variant
*v
, **prevPtr
= variants
;
1778 for (v
= *variants
; v
; ) {
1779 struct st_basic_variant
*next
= v
->next
;
1780 if (v
->key
.st
== st
) {
1781 /* unlink from list */
1783 /* destroy this variant */
1784 delete_basic_variant(st
, v
, target
->Target
);
1794 _mesa_problem(NULL
, "Unexpected program target 0x%x in "
1795 "destroy_program_variants_cb()", target
->Target
);
1801 * Callback for _mesa_HashWalk. Free all the shader's program variants
1802 * which match the given context.
1805 destroy_shader_program_variants_cb(GLuint key
, void *data
, void *userData
)
1807 struct st_context
*st
= (struct st_context
*) userData
;
1808 struct gl_shader
*shader
= (struct gl_shader
*) data
;
1810 switch (shader
->Type
) {
1811 case GL_SHADER_PROGRAM_MESA
:
1813 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
1816 for (i
= 0; i
< ARRAY_SIZE(shProg
->_LinkedShaders
); i
++) {
1817 if (shProg
->_LinkedShaders
[i
])
1818 destroy_program_variants(st
, shProg
->_LinkedShaders
[i
]->Program
);
1822 case GL_VERTEX_SHADER
:
1823 case GL_FRAGMENT_SHADER
:
1824 case GL_GEOMETRY_SHADER
:
1825 case GL_TESS_CONTROL_SHADER
:
1826 case GL_TESS_EVALUATION_SHADER
:
1827 case GL_COMPUTE_SHADER
:
1836 * Callback for _mesa_HashWalk. Free all the program variants which match
1837 * the given context.
1840 destroy_program_variants_cb(GLuint key
, void *data
, void *userData
)
1842 struct st_context
*st
= (struct st_context
*) userData
;
1843 struct gl_program
*program
= (struct gl_program
*) data
;
1844 destroy_program_variants(st
, program
);
1849 * Walk over all shaders and programs to delete any variants which
1850 * belong to the given context.
1851 * This is called during context tear-down.
1854 st_destroy_program_variants(struct st_context
*st
)
1856 /* If shaders can be shared with other contexts, the last context will
1857 * call DeleteProgram on all shaders, releasing everything.
1859 if (st
->has_shareable_shaders
)
1862 /* ARB vert/frag program */
1863 _mesa_HashWalk(st
->ctx
->Shared
->Programs
,
1864 destroy_program_variants_cb
, st
);
1866 /* GLSL vert/frag/geom shaders */
1867 _mesa_HashWalk(st
->ctx
->Shared
->ShaderObjects
,
1868 destroy_shader_program_variants_cb
, st
);
1873 * For debugging, print/dump the current vertex program.
1876 st_print_current_vertex_program(void)
1878 GET_CURRENT_CONTEXT(ctx
);
1880 if (ctx
->VertexProgram
._Current
) {
1881 struct st_vertex_program
*stvp
=
1882 (struct st_vertex_program
*) ctx
->VertexProgram
._Current
;
1883 struct st_vp_variant
*stv
;
1885 debug_printf("Vertex program %u\n", stvp
->Base
.Id
);
1887 for (stv
= stvp
->variants
; stv
; stv
= stv
->next
) {
1888 debug_printf("variant %p\n", stv
);
1889 tgsi_dump(stv
->tgsi
.tokens
, 0);
1896 * Compile one shader variant.
1899 st_precompile_shader_variant(struct st_context
*st
,
1900 struct gl_program
*prog
)
1902 switch (prog
->Target
) {
1903 case GL_VERTEX_PROGRAM_ARB
: {
1904 struct st_vertex_program
*p
= (struct st_vertex_program
*)prog
;
1905 struct st_vp_variant_key key
;
1907 memset(&key
, 0, sizeof(key
));
1908 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
1909 st_get_vp_variant(st
, p
, &key
);
1913 case GL_TESS_CONTROL_PROGRAM_NV
: {
1914 struct st_tessctrl_program
*p
= (struct st_tessctrl_program
*)prog
;
1915 st_get_basic_variant(st
, PIPE_SHADER_TESS_CTRL
, &p
->tgsi
, &p
->variants
);
1919 case GL_TESS_EVALUATION_PROGRAM_NV
: {
1920 struct st_tesseval_program
*p
= (struct st_tesseval_program
*)prog
;
1921 st_get_basic_variant(st
, PIPE_SHADER_TESS_EVAL
, &p
->tgsi
, &p
->variants
);
1925 case GL_GEOMETRY_PROGRAM_NV
: {
1926 struct st_geometry_program
*p
= (struct st_geometry_program
*)prog
;
1927 st_get_basic_variant(st
, PIPE_SHADER_GEOMETRY
, &p
->tgsi
, &p
->variants
);
1931 case GL_FRAGMENT_PROGRAM_ARB
: {
1932 struct st_fragment_program
*p
= (struct st_fragment_program
*)prog
;
1933 struct st_fp_variant_key key
;
1935 memset(&key
, 0, sizeof(key
));
1936 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
1937 st_get_fp_variant(st
, p
, &key
);
1941 case GL_COMPUTE_PROGRAM_NV
: {
1942 struct st_compute_program
*p
= (struct st_compute_program
*)prog
;
1943 st_get_cp_variant(st
, &p
->tgsi
, &p
->variants
);