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/errors.h"
35 #include "main/imports.h"
36 #include "main/hash.h"
37 #include "main/mtypes.h"
38 #include "program/prog_parameter.h"
39 #include "program/prog_print.h"
40 #include "program/prog_to_nir.h"
41 #include "program/programopt.h"
43 #include "compiler/nir/nir.h"
45 #include "pipe/p_context.h"
46 #include "pipe/p_defines.h"
47 #include "pipe/p_shader_tokens.h"
48 #include "draw/draw_context.h"
49 #include "tgsi/tgsi_dump.h"
50 #include "tgsi/tgsi_emulate.h"
51 #include "tgsi/tgsi_parse.h"
52 #include "tgsi/tgsi_ureg.h"
55 #include "st_cb_bitmap.h"
56 #include "st_cb_drawpixels.h"
57 #include "st_context.h"
58 #include "st_tgsi_lower_depth_clamp.h"
59 #include "st_tgsi_lower_yuv.h"
60 #include "st_program.h"
61 #include "st_mesa_to_tgsi.h"
62 #include "st_atifs_to_tgsi.h"
64 #include "st_shader_cache.h"
65 #include "cso_cache/cso_context.h"
70 set_affected_state_flags(uint64_t *states
,
71 struct gl_program
*prog
,
72 uint64_t new_constants
,
73 uint64_t new_sampler_views
,
74 uint64_t new_samplers
,
80 if (prog
->Parameters
->NumParameters
)
81 *states
|= new_constants
;
83 if (prog
->info
.num_textures
)
84 *states
|= new_sampler_views
| new_samplers
;
86 if (prog
->info
.num_images
)
87 *states
|= new_images
;
89 if (prog
->info
.num_ubos
)
92 if (prog
->info
.num_ssbos
)
95 if (prog
->info
.num_abos
)
96 *states
|= new_atomics
;
100 * This determines which states will be updated when the shader is bound.
103 st_set_prog_affected_state_flags(struct gl_program
*prog
)
107 switch (prog
->info
.stage
) {
108 case MESA_SHADER_VERTEX
:
109 states
= &((struct st_vertex_program
*)prog
)->affected_states
;
111 *states
= ST_NEW_VS_STATE
|
113 ST_NEW_VERTEX_ARRAYS
;
115 set_affected_state_flags(states
, prog
,
117 ST_NEW_VS_SAMPLER_VIEWS
,
125 case MESA_SHADER_TESS_CTRL
:
126 states
= &(st_common_program(prog
))->affected_states
;
128 *states
= ST_NEW_TCS_STATE
;
130 set_affected_state_flags(states
, prog
,
131 ST_NEW_TCS_CONSTANTS
,
132 ST_NEW_TCS_SAMPLER_VIEWS
,
140 case MESA_SHADER_TESS_EVAL
:
141 states
= &(st_common_program(prog
))->affected_states
;
143 *states
= ST_NEW_TES_STATE
|
146 set_affected_state_flags(states
, prog
,
147 ST_NEW_TES_CONSTANTS
,
148 ST_NEW_TES_SAMPLER_VIEWS
,
156 case MESA_SHADER_GEOMETRY
:
157 states
= &(st_common_program(prog
))->affected_states
;
159 *states
= ST_NEW_GS_STATE
|
162 set_affected_state_flags(states
, prog
,
164 ST_NEW_GS_SAMPLER_VIEWS
,
172 case MESA_SHADER_FRAGMENT
:
173 states
= &((struct st_fragment_program
*)prog
)->affected_states
;
175 /* gl_FragCoord and glDrawPixels always use constants. */
176 *states
= ST_NEW_FS_STATE
|
177 ST_NEW_SAMPLE_SHADING
|
180 set_affected_state_flags(states
, prog
,
182 ST_NEW_FS_SAMPLER_VIEWS
,
190 case MESA_SHADER_COMPUTE
:
191 states
= &((struct st_common_program
*)prog
)->affected_states
;
193 *states
= ST_NEW_CS_STATE
;
195 set_affected_state_flags(states
, prog
,
197 ST_NEW_CS_SAMPLER_VIEWS
,
206 unreachable("unhandled shader stage");
211 delete_ir(struct pipe_shader_state
*ir
)
214 ureg_free_tokens(ir
->tokens
);
218 /* Note: Any setup of ->ir.nir that has had pipe->create_*_state called on
219 * it has resulted in the driver taking ownership of the NIR. Those
220 * callers should be NULLing out the nir field in any pipe_shader_state
221 * that might have this called in order to indicate that.
223 * GLSL IR and ARB programs will have set gl_program->nir to the same
224 * shader as ir->ir.nir, so it will be freed by _mesa_delete_program().
229 * Delete a vertex program variant. Note the caller must unlink
230 * the variant from the linked list.
233 delete_vp_variant(struct st_context
*st
, struct st_vp_variant
*vpv
)
235 if (vpv
->driver_shader
) {
236 if (st
->has_shareable_shaders
|| vpv
->key
.st
== st
) {
237 cso_delete_vertex_shader(st
->cso_context
, vpv
->driver_shader
);
239 st_save_zombie_shader(vpv
->key
.st
, PIPE_SHADER_VERTEX
,
244 if (vpv
->draw_shader
)
245 draw_delete_vertex_shader( st
->draw
, vpv
->draw_shader
);
247 delete_ir(&vpv
->tgsi
);
255 * Clean out any old compilations:
258 st_release_vp_variants( struct st_context
*st
,
259 struct st_vertex_program
*stvp
)
261 struct st_vp_variant
*vpv
;
263 for (vpv
= stvp
->variants
; vpv
; ) {
264 struct st_vp_variant
*next
= vpv
->next
;
265 delete_vp_variant(st
, vpv
);
269 stvp
->variants
= NULL
;
271 delete_ir(&stvp
->tgsi
);
277 * Delete a fragment program variant. Note the caller must unlink
278 * the variant from the linked list.
281 delete_fp_variant(struct st_context
*st
, struct st_fp_variant
*fpv
)
283 if (fpv
->driver_shader
) {
284 if (st
->has_shareable_shaders
|| fpv
->key
.st
== st
) {
285 cso_delete_fragment_shader(st
->cso_context
, fpv
->driver_shader
);
287 st_save_zombie_shader(fpv
->key
.st
, PIPE_SHADER_FRAGMENT
,
297 * Free all variants of a fragment program.
300 st_release_fp_variants(struct st_context
*st
, struct st_fragment_program
*stfp
)
302 struct st_fp_variant
*fpv
;
304 for (fpv
= stfp
->variants
; fpv
; ) {
305 struct st_fp_variant
*next
= fpv
->next
;
306 delete_fp_variant(st
, fpv
);
310 stfp
->variants
= NULL
;
312 delete_ir(&stfp
->tgsi
);
317 * Delete a basic program variant. Note the caller must unlink
318 * the variant from the linked list.
321 delete_basic_variant(struct st_context
*st
, struct st_basic_variant
*v
,
324 if (v
->driver_shader
) {
325 if (st
->has_shareable_shaders
|| v
->key
.st
== st
) {
326 /* The shader's context matches the calling context, or we
330 case GL_TESS_CONTROL_PROGRAM_NV
:
331 cso_delete_tessctrl_shader(st
->cso_context
, v
->driver_shader
);
333 case GL_TESS_EVALUATION_PROGRAM_NV
:
334 cso_delete_tesseval_shader(st
->cso_context
, v
->driver_shader
);
336 case GL_GEOMETRY_PROGRAM_NV
:
337 cso_delete_geometry_shader(st
->cso_context
, v
->driver_shader
);
339 case GL_COMPUTE_PROGRAM_NV
:
340 cso_delete_compute_shader(st
->cso_context
, v
->driver_shader
);
343 unreachable("bad shader type in delete_basic_variant");
346 /* We can't delete a shader with a context different from the one
347 * that created it. Add it to the creating context's zombie list.
349 enum pipe_shader_type type
;
351 case GL_TESS_CONTROL_PROGRAM_NV
:
352 type
= PIPE_SHADER_TESS_CTRL
;
354 case GL_TESS_EVALUATION_PROGRAM_NV
:
355 type
= PIPE_SHADER_TESS_EVAL
;
357 case GL_GEOMETRY_PROGRAM_NV
:
358 type
= PIPE_SHADER_GEOMETRY
;
363 st_save_zombie_shader(v
->key
.st
, type
, v
->driver_shader
);
372 * Free all basic program variants.
375 st_release_basic_variants(struct st_context
*st
, struct st_common_program
*p
)
377 struct st_basic_variant
*v
;
379 for (v
= p
->variants
; v
; ) {
380 struct st_basic_variant
*next
= v
->next
;
381 delete_basic_variant(st
, v
, p
->Base
.Target
);
391 * Translate ARB (asm) program to NIR
394 st_translate_prog_to_nir(struct st_context
*st
, struct gl_program
*prog
,
395 gl_shader_stage stage
)
397 const struct gl_shader_compiler_options
*options
=
398 &st
->ctx
->Const
.ShaderCompilerOptions
[stage
];
400 /* Translate to NIR */
401 nir_shader
*nir
= prog_to_nir(prog
, options
->NirOptions
);
402 NIR_PASS_V(nir
, nir_lower_regs_to_ssa
); /* turn registers into SSA */
403 nir_validate_shader(nir
, "after st/ptn lower_regs_to_ssa");
405 NIR_PASS_V(nir
, st_nir_lower_wpos_ytransform
, prog
, st
->pipe
->screen
);
406 NIR_PASS_V(nir
, nir_lower_system_values
);
409 NIR_PASS_V(nir
, nir_opt_constant_folding
);
411 nir_validate_shader(nir
, "after st/ptn NIR opts");
417 * Translate a vertex program.
420 st_translate_vertex_program(struct st_context
*st
,
421 struct st_vertex_program
*stvp
)
423 struct ureg_program
*ureg
;
424 enum pipe_error error
;
425 unsigned num_outputs
= 0;
427 ubyte output_semantic_name
[VARYING_SLOT_MAX
] = {0};
428 ubyte output_semantic_index
[VARYING_SLOT_MAX
] = {0};
430 stvp
->num_inputs
= 0;
431 memset(stvp
->input_to_index
, ~0, sizeof(stvp
->input_to_index
));
433 if (stvp
->Base
.arb
.IsPositionInvariant
)
434 _mesa_insert_mvp_code(st
->ctx
, &stvp
->Base
);
437 * Determine number of inputs, the mappings between VERT_ATTRIB_x
438 * and TGSI generic input indexes, plus input attrib semantic info.
440 for (attr
= 0; attr
< VERT_ATTRIB_MAX
; attr
++) {
441 if ((stvp
->Base
.info
.inputs_read
& BITFIELD64_BIT(attr
)) != 0) {
442 stvp
->input_to_index
[attr
] = stvp
->num_inputs
;
443 stvp
->index_to_input
[stvp
->num_inputs
] = attr
;
445 if ((stvp
->Base
.DualSlotInputs
& BITFIELD64_BIT(attr
)) != 0) {
446 /* add placeholder for second part of a double attribute */
447 stvp
->index_to_input
[stvp
->num_inputs
] = ST_DOUBLE_ATTRIB_PLACEHOLDER
;
452 /* bit of a hack, presetup potentially unused edgeflag input */
453 stvp
->input_to_index
[VERT_ATTRIB_EDGEFLAG
] = stvp
->num_inputs
;
454 stvp
->index_to_input
[stvp
->num_inputs
] = VERT_ATTRIB_EDGEFLAG
;
456 /* Compute mapping of vertex program outputs to slots.
458 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
459 if ((stvp
->Base
.info
.outputs_written
& BITFIELD64_BIT(attr
)) == 0) {
460 stvp
->result_to_output
[attr
] = ~0;
463 unsigned slot
= num_outputs
++;
465 stvp
->result_to_output
[attr
] = slot
;
467 unsigned semantic_name
, semantic_index
;
468 tgsi_get_gl_varying_semantic(attr
, st
->needs_texcoord_semantic
,
469 &semantic_name
, &semantic_index
);
470 output_semantic_name
[slot
] = semantic_name
;
471 output_semantic_index
[slot
] = semantic_index
;
474 /* similar hack to above, presetup potentially unused edgeflag output */
475 stvp
->result_to_output
[VARYING_SLOT_EDGE
] = num_outputs
;
476 output_semantic_name
[num_outputs
] = TGSI_SEMANTIC_EDGEFLAG
;
477 output_semantic_index
[num_outputs
] = 0;
480 if (!stvp
->glsl_to_tgsi
&& !stvp
->shader_program
) {
481 _mesa_remove_output_reads(&stvp
->Base
, PROGRAM_OUTPUT
);
483 /* This determines which states will be updated when the assembly
486 stvp
->affected_states
= ST_NEW_VS_STATE
|
488 ST_NEW_VERTEX_ARRAYS
;
490 if (stvp
->Base
.Parameters
->NumParameters
)
491 stvp
->affected_states
|= ST_NEW_VS_CONSTANTS
;
493 /* No samplers are allowed in ARB_vp. */
496 if (stvp
->shader_program
) {
497 st_translate_stream_output_info(stvp
->Base
.sh
.LinkedTransformFeedback
,
498 stvp
->result_to_output
,
499 &stvp
->tgsi
.stream_output
);
501 st_store_ir_in_disk_cache(st
, &stvp
->Base
, true);
505 ureg
= ureg_create_with_screen(PIPE_SHADER_VERTEX
, st
->pipe
->screen
);
509 if (stvp
->Base
.info
.clip_distance_array_size
)
510 ureg_property(ureg
, TGSI_PROPERTY_NUM_CLIPDIST_ENABLED
,
511 stvp
->Base
.info
.clip_distance_array_size
);
512 if (stvp
->Base
.info
.cull_distance_array_size
)
513 ureg_property(ureg
, TGSI_PROPERTY_NUM_CULLDIST_ENABLED
,
514 stvp
->Base
.info
.cull_distance_array_size
);
516 if (ST_DEBUG
& DEBUG_MESA
) {
517 _mesa_print_program(&stvp
->Base
);
518 _mesa_print_program_parameters(st
->ctx
, &stvp
->Base
);
522 if (stvp
->glsl_to_tgsi
) {
523 error
= st_translate_program(st
->ctx
,
530 stvp
->input_to_index
,
531 NULL
, /* inputSlotToAttr */
532 NULL
, /* input semantic name */
533 NULL
, /* input semantic index */
534 NULL
, /* interp mode */
537 stvp
->result_to_output
,
538 output_semantic_name
,
539 output_semantic_index
);
541 st_translate_stream_output_info(stvp
->Base
.sh
.LinkedTransformFeedback
,
542 stvp
->result_to_output
,
543 &stvp
->tgsi
.stream_output
);
545 free_glsl_to_tgsi_visitor(stvp
->glsl_to_tgsi
);
547 error
= st_translate_mesa_program(st
->ctx
,
553 stvp
->input_to_index
,
554 NULL
, /* input semantic name */
555 NULL
, /* input semantic index */
559 stvp
->result_to_output
,
560 output_semantic_name
,
561 output_semantic_index
);
564 debug_printf("%s: failed to translate Mesa program:\n", __func__
);
565 _mesa_print_program(&stvp
->Base
);
570 stvp
->tgsi
.tokens
= ureg_get_tokens(ureg
, &stvp
->num_tgsi_tokens
);
573 if (stvp
->glsl_to_tgsi
) {
574 stvp
->glsl_to_tgsi
= NULL
;
575 st_store_ir_in_disk_cache(st
, &stvp
->Base
, false);
578 bool use_nir
= PIPE_SHADER_IR_NIR
==
579 st
->pipe
->screen
->get_shader_param(st
->pipe
->screen
, PIPE_SHADER_VERTEX
,
580 PIPE_SHADER_CAP_PREFERRED_IR
);
584 st_translate_prog_to_nir(st
, &stvp
->Base
, MESA_SHADER_VERTEX
);
586 if (stvp
->tgsi
.ir
.nir
)
587 ralloc_free(stvp
->tgsi
.ir
.nir
);
588 stvp
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
589 stvp
->tgsi
.ir
.nir
= nir
;
590 stvp
->Base
.nir
= nir
;
594 return stvp
->tgsi
.tokens
!= NULL
;
597 static const gl_state_index16 depth_range_state
[STATE_LENGTH
] =
598 { STATE_DEPTH_RANGE
};
600 static struct st_vp_variant
*
601 st_create_vp_variant(struct st_context
*st
,
602 struct st_vertex_program
*stvp
,
603 const struct st_vp_variant_key
*key
)
605 struct st_vp_variant
*vpv
= CALLOC_STRUCT(st_vp_variant
);
606 struct pipe_context
*pipe
= st
->pipe
;
607 struct gl_program_parameter_list
*params
= stvp
->Base
.Parameters
;
610 vpv
->tgsi
.stream_output
= stvp
->tgsi
.stream_output
;
611 vpv
->num_inputs
= stvp
->num_inputs
;
613 /* When generating a NIR program, we usually don't have TGSI tokens.
614 * However, we do create them for ARB_vertex_program / fixed-function VS
615 * programs which we may need to use with the draw module for legacy
616 * feedback/select emulation. If they exist, copy them.
618 if (stvp
->tgsi
.tokens
)
619 vpv
->tgsi
.tokens
= tgsi_dup_tokens(stvp
->tgsi
.tokens
);
621 if (stvp
->tgsi
.type
== PIPE_SHADER_IR_NIR
) {
622 vpv
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
623 vpv
->tgsi
.ir
.nir
= nir_shader_clone(NULL
, stvp
->tgsi
.ir
.nir
);
624 if (key
->clamp_color
)
625 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_clamp_color_outputs
);
626 if (key
->passthrough_edgeflags
) {
627 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_passthrough_edgeflags
);
631 st_finalize_nir(st
, &stvp
->Base
, stvp
->shader_program
,
634 vpv
->driver_shader
= pipe
->create_vs_state(pipe
, &vpv
->tgsi
);
635 /* driver takes ownership of IR: */
636 vpv
->tgsi
.ir
.nir
= NULL
;
640 /* Emulate features. */
641 if (key
->clamp_color
|| key
->passthrough_edgeflags
) {
642 const struct tgsi_token
*tokens
;
644 (key
->clamp_color
? TGSI_EMU_CLAMP_COLOR_OUTPUTS
: 0) |
645 (key
->passthrough_edgeflags
? TGSI_EMU_PASSTHROUGH_EDGEFLAG
: 0);
647 tokens
= tgsi_emulate(vpv
->tgsi
.tokens
, flags
);
650 tgsi_free_tokens(vpv
->tgsi
.tokens
);
651 vpv
->tgsi
.tokens
= tokens
;
653 if (key
->passthrough_edgeflags
)
656 fprintf(stderr
, "mesa: cannot emulate deprecated features\n");
659 if (key
->lower_depth_clamp
) {
660 unsigned depth_range_const
=
661 _mesa_add_state_reference(params
, depth_range_state
);
663 const struct tgsi_token
*tokens
;
664 tokens
= st_tgsi_lower_depth_clamp(vpv
->tgsi
.tokens
, depth_range_const
,
665 key
->clip_negative_one_to_one
);
666 if (tokens
!= vpv
->tgsi
.tokens
)
667 tgsi_free_tokens(vpv
->tgsi
.tokens
);
668 vpv
->tgsi
.tokens
= tokens
;
671 if (ST_DEBUG
& DEBUG_TGSI
) {
672 tgsi_dump(vpv
->tgsi
.tokens
, 0);
676 vpv
->driver_shader
= pipe
->create_vs_state(pipe
, &vpv
->tgsi
);
682 * Find/create a vertex program variant.
684 struct st_vp_variant
*
685 st_get_vp_variant(struct st_context
*st
,
686 struct st_vertex_program
*stvp
,
687 const struct st_vp_variant_key
*key
)
689 struct st_vp_variant
*vpv
;
691 /* Search for existing variant */
692 for (vpv
= stvp
->variants
; vpv
; vpv
= vpv
->next
) {
693 if (memcmp(&vpv
->key
, key
, sizeof(*key
)) == 0) {
700 vpv
= st_create_vp_variant(st
, stvp
, key
);
702 for (unsigned index
= 0; index
< vpv
->num_inputs
; ++index
) {
703 unsigned attr
= stvp
->index_to_input
[index
];
704 if (attr
== ST_DOUBLE_ATTRIB_PLACEHOLDER
)
706 vpv
->vert_attrib_mask
|= 1u << attr
;
709 /* insert into list */
710 vpv
->next
= stvp
->variants
;
711 stvp
->variants
= vpv
;
720 * Translate a Mesa fragment shader into a TGSI shader.
723 st_translate_fragment_program(struct st_context
*st
,
724 struct st_fragment_program
*stfp
)
726 /* We have already compiled to NIR so just return */
727 if (stfp
->shader_program
) {
728 st_store_ir_in_disk_cache(st
, &stfp
->Base
, true);
732 ubyte outputMapping
[2 * FRAG_RESULT_MAX
];
733 ubyte inputMapping
[VARYING_SLOT_MAX
];
734 ubyte inputSlotToAttr
[VARYING_SLOT_MAX
];
735 ubyte interpMode
[PIPE_MAX_SHADER_INPUTS
]; /* XXX size? */
737 GLbitfield64 inputsRead
;
738 struct ureg_program
*ureg
;
740 GLboolean write_all
= GL_FALSE
;
742 ubyte input_semantic_name
[PIPE_MAX_SHADER_INPUTS
];
743 ubyte input_semantic_index
[PIPE_MAX_SHADER_INPUTS
];
744 uint fs_num_inputs
= 0;
746 ubyte fs_output_semantic_name
[PIPE_MAX_SHADER_OUTPUTS
];
747 ubyte fs_output_semantic_index
[PIPE_MAX_SHADER_OUTPUTS
];
748 uint fs_num_outputs
= 0;
750 memset(inputSlotToAttr
, ~0, sizeof(inputSlotToAttr
));
752 /* Non-GLSL programs: */
753 if (!stfp
->glsl_to_tgsi
&& !stfp
->shader_program
) {
754 _mesa_remove_output_reads(&stfp
->Base
, PROGRAM_OUTPUT
);
755 if (st
->ctx
->Const
.GLSLFragCoordIsSysVal
)
756 _mesa_program_fragment_position_to_sysval(&stfp
->Base
);
758 /* This determines which states will be updated when the assembly
761 * fragment.position and glDrawPixels always use constants.
763 stfp
->affected_states
= ST_NEW_FS_STATE
|
764 ST_NEW_SAMPLE_SHADING
|
768 /* Just set them for ATI_fs unconditionally. */
769 stfp
->affected_states
|= ST_NEW_FS_SAMPLER_VIEWS
|
773 if (stfp
->Base
.SamplersUsed
)
774 stfp
->affected_states
|= ST_NEW_FS_SAMPLER_VIEWS
|
780 bool use_nir
= PIPE_SHADER_IR_NIR
==
781 st
->pipe
->screen
->get_shader_param(st
->pipe
->screen
,
782 PIPE_SHADER_FRAGMENT
,
783 PIPE_SHADER_CAP_PREFERRED_IR
);
785 if (use_nir
&& !stfp
->ati_fs
) {
787 st_translate_prog_to_nir(st
, &stfp
->Base
, MESA_SHADER_FRAGMENT
);
789 if (stfp
->tgsi
.ir
.nir
)
790 ralloc_free(stfp
->tgsi
.ir
.nir
);
791 stfp
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
792 stfp
->tgsi
.ir
.nir
= nir
;
793 stfp
->Base
.nir
= nir
;
798 * Convert Mesa program inputs to TGSI input register semantics.
800 inputsRead
= stfp
->Base
.info
.inputs_read
;
801 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
802 if ((inputsRead
& BITFIELD64_BIT(attr
)) != 0) {
803 const GLuint slot
= fs_num_inputs
++;
805 inputMapping
[attr
] = slot
;
806 inputSlotToAttr
[slot
] = attr
;
809 case VARYING_SLOT_POS
:
810 input_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
811 input_semantic_index
[slot
] = 0;
812 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
814 case VARYING_SLOT_COL0
:
815 input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
816 input_semantic_index
[slot
] = 0;
817 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
818 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_COLOR
;
820 case VARYING_SLOT_COL1
:
821 input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
822 input_semantic_index
[slot
] = 1;
823 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
824 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_COLOR
;
826 case VARYING_SLOT_FOGC
:
827 input_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
828 input_semantic_index
[slot
] = 0;
829 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
831 case VARYING_SLOT_FACE
:
832 input_semantic_name
[slot
] = TGSI_SEMANTIC_FACE
;
833 input_semantic_index
[slot
] = 0;
834 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
836 case VARYING_SLOT_PRIMITIVE_ID
:
837 input_semantic_name
[slot
] = TGSI_SEMANTIC_PRIMID
;
838 input_semantic_index
[slot
] = 0;
839 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
841 case VARYING_SLOT_LAYER
:
842 input_semantic_name
[slot
] = TGSI_SEMANTIC_LAYER
;
843 input_semantic_index
[slot
] = 0;
844 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
846 case VARYING_SLOT_VIEWPORT
:
847 input_semantic_name
[slot
] = TGSI_SEMANTIC_VIEWPORT_INDEX
;
848 input_semantic_index
[slot
] = 0;
849 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
851 case VARYING_SLOT_CLIP_DIST0
:
852 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
853 input_semantic_index
[slot
] = 0;
854 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
856 case VARYING_SLOT_CLIP_DIST1
:
857 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
858 input_semantic_index
[slot
] = 1;
859 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
861 case VARYING_SLOT_CULL_DIST0
:
862 case VARYING_SLOT_CULL_DIST1
:
863 /* these should have been lowered by GLSL */
866 /* In most cases, there is nothing special about these
867 * inputs, so adopt a convention to use the generic
868 * semantic name and the mesa VARYING_SLOT_ number as the
871 * All that is required is that the vertex shader labels
872 * its own outputs similarly, and that the vertex shader
873 * generates at least every output required by the
874 * fragment shader plus fixed-function hardware (such as
877 * However, some drivers may need us to identify the PNTC and TEXi
878 * varyings if, for example, their capability to replace them with
879 * sprite coordinates is limited.
881 case VARYING_SLOT_PNTC
:
882 if (st
->needs_texcoord_semantic
) {
883 input_semantic_name
[slot
] = TGSI_SEMANTIC_PCOORD
;
884 input_semantic_index
[slot
] = 0;
885 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
889 case VARYING_SLOT_TEX0
:
890 case VARYING_SLOT_TEX1
:
891 case VARYING_SLOT_TEX2
:
892 case VARYING_SLOT_TEX3
:
893 case VARYING_SLOT_TEX4
:
894 case VARYING_SLOT_TEX5
:
895 case VARYING_SLOT_TEX6
:
896 case VARYING_SLOT_TEX7
:
897 if (st
->needs_texcoord_semantic
) {
898 input_semantic_name
[slot
] = TGSI_SEMANTIC_TEXCOORD
;
899 input_semantic_index
[slot
] = attr
- VARYING_SLOT_TEX0
;
900 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
901 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_PERSPECTIVE
;
905 case VARYING_SLOT_VAR0
:
907 /* Semantic indices should be zero-based because drivers may choose
908 * to assign a fixed slot determined by that index.
909 * This is useful because ARB_separate_shader_objects uses location
910 * qualifiers for linkage, and if the semantic index corresponds to
911 * these locations, linkage passes in the driver become unecessary.
913 * If needs_texcoord_semantic is true, no semantic indices will be
914 * consumed for the TEXi varyings, and we can base the locations of
915 * the user varyings on VAR0. Otherwise, we use TEX0 as base index.
917 assert(attr
>= VARYING_SLOT_VAR0
|| attr
== VARYING_SLOT_PNTC
||
918 (attr
>= VARYING_SLOT_TEX0
&& attr
<= VARYING_SLOT_TEX7
));
919 input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
920 input_semantic_index
[slot
] = st_get_generic_varying_index(st
, attr
);
921 if (attr
== VARYING_SLOT_PNTC
)
922 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
924 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
925 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_PERSPECTIVE
;
931 inputMapping
[attr
] = -1;
936 * Semantics and mapping for outputs
938 GLbitfield64 outputsWritten
= stfp
->Base
.info
.outputs_written
;
940 /* if z is written, emit that first */
941 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_DEPTH
)) {
942 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_POSITION
;
943 fs_output_semantic_index
[fs_num_outputs
] = 0;
944 outputMapping
[FRAG_RESULT_DEPTH
] = fs_num_outputs
;
946 outputsWritten
&= ~(1 << FRAG_RESULT_DEPTH
);
949 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_STENCIL
)) {
950 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_STENCIL
;
951 fs_output_semantic_index
[fs_num_outputs
] = 0;
952 outputMapping
[FRAG_RESULT_STENCIL
] = fs_num_outputs
;
954 outputsWritten
&= ~(1 << FRAG_RESULT_STENCIL
);
957 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_SAMPLE_MASK
)) {
958 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_SAMPLEMASK
;
959 fs_output_semantic_index
[fs_num_outputs
] = 0;
960 outputMapping
[FRAG_RESULT_SAMPLE_MASK
] = fs_num_outputs
;
962 outputsWritten
&= ~(1 << FRAG_RESULT_SAMPLE_MASK
);
965 /* handle remaining outputs (color) */
966 for (attr
= 0; attr
< ARRAY_SIZE(outputMapping
); attr
++) {
967 const GLbitfield64 written
= attr
< FRAG_RESULT_MAX
? outputsWritten
:
968 stfp
->Base
.SecondaryOutputsWritten
;
969 const unsigned loc
= attr
% FRAG_RESULT_MAX
;
971 if (written
& BITFIELD64_BIT(loc
)) {
973 case FRAG_RESULT_DEPTH
:
974 case FRAG_RESULT_STENCIL
:
975 case FRAG_RESULT_SAMPLE_MASK
:
979 case FRAG_RESULT_COLOR
:
980 write_all
= GL_TRUE
; /* fallthrough */
983 assert(loc
== FRAG_RESULT_COLOR
||
984 (FRAG_RESULT_DATA0
<= loc
&& loc
< FRAG_RESULT_MAX
));
986 index
= (loc
== FRAG_RESULT_COLOR
) ? 0 : (loc
- FRAG_RESULT_DATA0
);
988 if (attr
>= FRAG_RESULT_MAX
) {
989 /* Secondary color for dual source blending. */
994 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_COLOR
;
995 fs_output_semantic_index
[fs_num_outputs
] = index
;
996 outputMapping
[attr
] = fs_num_outputs
;
1005 ureg
= ureg_create_with_screen(PIPE_SHADER_FRAGMENT
, st
->pipe
->screen
);
1009 if (ST_DEBUG
& DEBUG_MESA
) {
1010 _mesa_print_program(&stfp
->Base
);
1011 _mesa_print_program_parameters(st
->ctx
, &stfp
->Base
);
1014 if (write_all
== GL_TRUE
)
1015 ureg_property(ureg
, TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
, 1);
1017 if (stfp
->Base
.info
.fs
.depth_layout
!= FRAG_DEPTH_LAYOUT_NONE
) {
1018 switch (stfp
->Base
.info
.fs
.depth_layout
) {
1019 case FRAG_DEPTH_LAYOUT_ANY
:
1020 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
1021 TGSI_FS_DEPTH_LAYOUT_ANY
);
1023 case FRAG_DEPTH_LAYOUT_GREATER
:
1024 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
1025 TGSI_FS_DEPTH_LAYOUT_GREATER
);
1027 case FRAG_DEPTH_LAYOUT_LESS
:
1028 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
1029 TGSI_FS_DEPTH_LAYOUT_LESS
);
1031 case FRAG_DEPTH_LAYOUT_UNCHANGED
:
1032 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
1033 TGSI_FS_DEPTH_LAYOUT_UNCHANGED
);
1040 if (stfp
->glsl_to_tgsi
) {
1041 st_translate_program(st
->ctx
,
1042 PIPE_SHADER_FRAGMENT
,
1050 input_semantic_name
,
1051 input_semantic_index
,
1056 fs_output_semantic_name
,
1057 fs_output_semantic_index
);
1059 free_glsl_to_tgsi_visitor(stfp
->glsl_to_tgsi
);
1060 } else if (stfp
->ati_fs
)
1061 st_translate_atifs_program(ureg
,
1067 input_semantic_name
,
1068 input_semantic_index
,
1073 fs_output_semantic_name
,
1074 fs_output_semantic_index
);
1076 st_translate_mesa_program(st
->ctx
,
1077 PIPE_SHADER_FRAGMENT
,
1083 input_semantic_name
,
1084 input_semantic_index
,
1089 fs_output_semantic_name
,
1090 fs_output_semantic_index
);
1092 stfp
->tgsi
.tokens
= ureg_get_tokens(ureg
, &stfp
->num_tgsi_tokens
);
1095 if (stfp
->glsl_to_tgsi
) {
1096 stfp
->glsl_to_tgsi
= NULL
;
1097 st_store_ir_in_disk_cache(st
, &stfp
->Base
, false);
1100 return stfp
->tgsi
.tokens
!= NULL
;
1103 static struct st_fp_variant
*
1104 st_create_fp_variant(struct st_context
*st
,
1105 struct st_fragment_program
*stfp
,
1106 const struct st_fp_variant_key
*key
)
1108 struct pipe_context
*pipe
= st
->pipe
;
1109 struct st_fp_variant
*variant
= CALLOC_STRUCT(st_fp_variant
);
1110 struct pipe_shader_state tgsi
= {0};
1111 struct gl_program_parameter_list
*params
= stfp
->Base
.Parameters
;
1112 static const gl_state_index16 texcoord_state
[STATE_LENGTH
] =
1113 { STATE_INTERNAL
, STATE_CURRENT_ATTRIB
, VERT_ATTRIB_TEX0
};
1114 static const gl_state_index16 scale_state
[STATE_LENGTH
] =
1115 { STATE_INTERNAL
, STATE_PT_SCALE
};
1116 static const gl_state_index16 bias_state
[STATE_LENGTH
] =
1117 { STATE_INTERNAL
, STATE_PT_BIAS
};
1122 if (stfp
->tgsi
.type
== PIPE_SHADER_IR_NIR
) {
1123 tgsi
.type
= PIPE_SHADER_IR_NIR
;
1124 tgsi
.ir
.nir
= nir_shader_clone(NULL
, stfp
->tgsi
.ir
.nir
);
1126 if (key
->clamp_color
)
1127 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_clamp_color_outputs
);
1129 if (key
->persample_shading
) {
1130 nir_shader
*shader
= tgsi
.ir
.nir
;
1131 nir_foreach_variable(var
, &shader
->inputs
)
1132 var
->data
.sample
= true;
1135 assert(!(key
->bitmap
&& key
->drawpixels
));
1139 nir_lower_bitmap_options options
= {0};
1141 variant
->bitmap_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
1142 options
.sampler
= variant
->bitmap_sampler
;
1143 options
.swizzle_xxxx
= st
->bitmap
.tex_format
== PIPE_FORMAT_R8_UNORM
;
1145 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_bitmap
, &options
);
1148 /* glDrawPixels (color only) */
1149 if (key
->drawpixels
) {
1150 nir_lower_drawpixels_options options
= {{0}};
1151 unsigned samplers_used
= stfp
->Base
.SamplersUsed
;
1153 /* Find the first unused slot. */
1154 variant
->drawpix_sampler
= ffs(~samplers_used
) - 1;
1155 options
.drawpix_sampler
= variant
->drawpix_sampler
;
1156 samplers_used
|= (1 << variant
->drawpix_sampler
);
1158 options
.pixel_maps
= key
->pixelMaps
;
1159 if (key
->pixelMaps
) {
1160 variant
->pixelmap_sampler
= ffs(~samplers_used
) - 1;
1161 options
.pixelmap_sampler
= variant
->pixelmap_sampler
;
1164 options
.scale_and_bias
= key
->scaleAndBias
;
1165 if (key
->scaleAndBias
) {
1166 _mesa_add_state_reference(params
, scale_state
);
1167 memcpy(options
.scale_state_tokens
, scale_state
,
1168 sizeof(options
.scale_state_tokens
));
1169 _mesa_add_state_reference(params
, bias_state
);
1170 memcpy(options
.bias_state_tokens
, bias_state
,
1171 sizeof(options
.bias_state_tokens
));
1174 _mesa_add_state_reference(params
, texcoord_state
);
1175 memcpy(options
.texcoord_state_tokens
, texcoord_state
,
1176 sizeof(options
.texcoord_state_tokens
));
1178 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_drawpixels
, &options
);
1181 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
||
1182 key
->external
.lower_xy_uxvx
|| key
->external
.lower_yx_xuxv
||
1183 key
->external
.lower_ayuv
|| key
->external
.lower_xyuv
)) {
1184 nir_lower_tex_options options
= {0};
1185 options
.lower_y_uv_external
= key
->external
.lower_nv12
;
1186 options
.lower_y_u_v_external
= key
->external
.lower_iyuv
;
1187 options
.lower_xy_uxvx_external
= key
->external
.lower_xy_uxvx
;
1188 options
.lower_yx_xuxv_external
= key
->external
.lower_yx_xuxv
;
1189 options
.lower_ayuv_external
= key
->external
.lower_ayuv
;
1190 options
.lower_xyuv_external
= key
->external
.lower_xyuv
;
1191 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_tex
, &options
);
1194 st_finalize_nir(st
, &stfp
->Base
, stfp
->shader_program
, tgsi
.ir
.nir
);
1196 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
||
1197 key
->external
.lower_xy_uxvx
|| key
->external
.lower_yx_xuxv
)) {
1198 /* This pass needs to happen *after* nir_lower_sampler */
1199 NIR_PASS_V(tgsi
.ir
.nir
, st_nir_lower_tex_src_plane
,
1200 ~stfp
->Base
.SamplersUsed
,
1201 key
->external
.lower_nv12
|| key
->external
.lower_xy_uxvx
||
1202 key
->external
.lower_yx_xuxv
,
1203 key
->external
.lower_iyuv
);
1206 /* Some of the lowering above may have introduced new varyings */
1207 nir_shader_gather_info(tgsi
.ir
.nir
,
1208 nir_shader_get_entrypoint(tgsi
.ir
.nir
));
1210 variant
->driver_shader
= pipe
->create_fs_state(pipe
, &tgsi
);
1211 variant
->key
= *key
;
1216 tgsi
.tokens
= stfp
->tgsi
.tokens
;
1218 assert(!(key
->bitmap
&& key
->drawpixels
));
1220 /* Fix texture targets and add fog for ATI_fs */
1222 const struct tgsi_token
*tokens
= st_fixup_atifs(tgsi
.tokens
, key
);
1225 tgsi
.tokens
= tokens
;
1227 fprintf(stderr
, "mesa: cannot post-process ATI_fs\n");
1230 /* Emulate features. */
1231 if (key
->clamp_color
|| key
->persample_shading
) {
1232 const struct tgsi_token
*tokens
;
1234 (key
->clamp_color
? TGSI_EMU_CLAMP_COLOR_OUTPUTS
: 0) |
1235 (key
->persample_shading
? TGSI_EMU_FORCE_PERSAMPLE_INTERP
: 0);
1237 tokens
= tgsi_emulate(tgsi
.tokens
, flags
);
1240 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1241 tgsi_free_tokens(tgsi
.tokens
);
1242 tgsi
.tokens
= tokens
;
1244 fprintf(stderr
, "mesa: cannot emulate deprecated features\n");
1249 const struct tgsi_token
*tokens
;
1251 variant
->bitmap_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
1253 tokens
= st_get_bitmap_shader(tgsi
.tokens
,
1254 st
->internal_target
,
1255 variant
->bitmap_sampler
,
1256 st
->needs_texcoord_semantic
,
1257 st
->bitmap
.tex_format
==
1258 PIPE_FORMAT_R8_UNORM
);
1261 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1262 tgsi_free_tokens(tgsi
.tokens
);
1263 tgsi
.tokens
= tokens
;
1265 fprintf(stderr
, "mesa: cannot create a shader for glBitmap\n");
1268 /* glDrawPixels (color only) */
1269 if (key
->drawpixels
) {
1270 const struct tgsi_token
*tokens
;
1271 unsigned scale_const
= 0, bias_const
= 0, texcoord_const
= 0;
1273 /* Find the first unused slot. */
1274 variant
->drawpix_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
1276 if (key
->pixelMaps
) {
1277 unsigned samplers_used
= stfp
->Base
.SamplersUsed
|
1278 (1 << variant
->drawpix_sampler
);
1280 variant
->pixelmap_sampler
= ffs(~samplers_used
) - 1;
1283 if (key
->scaleAndBias
) {
1284 scale_const
= _mesa_add_state_reference(params
, scale_state
);
1285 bias_const
= _mesa_add_state_reference(params
, bias_state
);
1288 texcoord_const
= _mesa_add_state_reference(params
, texcoord_state
);
1290 tokens
= st_get_drawpix_shader(tgsi
.tokens
,
1291 st
->needs_texcoord_semantic
,
1292 key
->scaleAndBias
, scale_const
,
1293 bias_const
, key
->pixelMaps
,
1294 variant
->drawpix_sampler
,
1295 variant
->pixelmap_sampler
,
1296 texcoord_const
, st
->internal_target
);
1299 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1300 tgsi_free_tokens(tgsi
.tokens
);
1301 tgsi
.tokens
= tokens
;
1303 fprintf(stderr
, "mesa: cannot create a shader for glDrawPixels\n");
1306 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
||
1307 key
->external
.lower_xy_uxvx
|| key
->external
.lower_yx_xuxv
)) {
1308 const struct tgsi_token
*tokens
;
1310 /* samplers inserted would conflict, but this should be unpossible: */
1311 assert(!(key
->bitmap
|| key
->drawpixels
));
1313 tokens
= st_tgsi_lower_yuv(tgsi
.tokens
,
1314 ~stfp
->Base
.SamplersUsed
,
1315 key
->external
.lower_nv12
||
1316 key
->external
.lower_xy_uxvx
||
1317 key
->external
.lower_yx_xuxv
,
1318 key
->external
.lower_iyuv
);
1320 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1321 tgsi_free_tokens(tgsi
.tokens
);
1322 tgsi
.tokens
= tokens
;
1324 fprintf(stderr
, "mesa: cannot create a shader for samplerExternalOES\n");
1328 if (key
->lower_depth_clamp
) {
1329 unsigned depth_range_const
= _mesa_add_state_reference(params
, depth_range_state
);
1331 const struct tgsi_token
*tokens
;
1332 tokens
= st_tgsi_lower_depth_clamp_fs(tgsi
.tokens
, depth_range_const
);
1333 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1334 tgsi_free_tokens(tgsi
.tokens
);
1335 tgsi
.tokens
= tokens
;
1338 if (ST_DEBUG
& DEBUG_TGSI
) {
1339 tgsi_dump(tgsi
.tokens
, 0);
1343 /* fill in variant */
1344 variant
->driver_shader
= pipe
->create_fs_state(pipe
, &tgsi
);
1345 variant
->key
= *key
;
1347 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1348 tgsi_free_tokens(tgsi
.tokens
);
1353 * Translate fragment program if needed.
1355 struct st_fp_variant
*
1356 st_get_fp_variant(struct st_context
*st
,
1357 struct st_fragment_program
*stfp
,
1358 const struct st_fp_variant_key
*key
)
1360 struct st_fp_variant
*fpv
;
1362 /* Search for existing variant */
1363 for (fpv
= stfp
->variants
; fpv
; fpv
= fpv
->next
) {
1364 if (memcmp(&fpv
->key
, key
, sizeof(*key
)) == 0) {
1371 fpv
= st_create_fp_variant(st
, stfp
, key
);
1373 if (key
->bitmap
|| key
->drawpixels
) {
1374 /* Regular variants should always come before the
1375 * bitmap & drawpixels variants, (unless there
1376 * are no regular variants) so that
1377 * st_update_fp can take a fast path when
1378 * shader_has_one_variant is set.
1380 if (!stfp
->variants
) {
1381 stfp
->variants
= fpv
;
1383 /* insert into list after the first one */
1384 fpv
->next
= stfp
->variants
->next
;
1385 stfp
->variants
->next
= fpv
;
1388 /* insert into list */
1389 fpv
->next
= stfp
->variants
;
1390 stfp
->variants
= fpv
;
1400 * Translate a program. This is common code for geometry and tessellation
1404 st_translate_program_common(struct st_context
*st
,
1405 struct gl_program
*prog
,
1406 struct glsl_to_tgsi_visitor
*glsl_to_tgsi
,
1407 struct ureg_program
*ureg
,
1408 unsigned tgsi_processor
,
1409 struct pipe_shader_state
*out_state
)
1411 ubyte inputSlotToAttr
[VARYING_SLOT_TESS_MAX
];
1412 ubyte inputMapping
[VARYING_SLOT_TESS_MAX
];
1413 ubyte outputMapping
[VARYING_SLOT_TESS_MAX
];
1416 ubyte input_semantic_name
[PIPE_MAX_SHADER_INPUTS
];
1417 ubyte input_semantic_index
[PIPE_MAX_SHADER_INPUTS
];
1418 uint num_inputs
= 0;
1420 ubyte output_semantic_name
[PIPE_MAX_SHADER_OUTPUTS
];
1421 ubyte output_semantic_index
[PIPE_MAX_SHADER_OUTPUTS
];
1422 uint num_outputs
= 0;
1426 memset(inputSlotToAttr
, 0, sizeof(inputSlotToAttr
));
1427 memset(inputMapping
, 0, sizeof(inputMapping
));
1428 memset(outputMapping
, 0, sizeof(outputMapping
));
1429 memset(out_state
, 0, sizeof(*out_state
));
1431 if (prog
->info
.clip_distance_array_size
)
1432 ureg_property(ureg
, TGSI_PROPERTY_NUM_CLIPDIST_ENABLED
,
1433 prog
->info
.clip_distance_array_size
);
1434 if (prog
->info
.cull_distance_array_size
)
1435 ureg_property(ureg
, TGSI_PROPERTY_NUM_CULLDIST_ENABLED
,
1436 prog
->info
.cull_distance_array_size
);
1439 * Convert Mesa program inputs to TGSI input register semantics.
1441 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
1442 if ((prog
->info
.inputs_read
& BITFIELD64_BIT(attr
)) == 0)
1445 unsigned slot
= num_inputs
++;
1447 inputMapping
[attr
] = slot
;
1448 inputSlotToAttr
[slot
] = attr
;
1450 unsigned semantic_name
, semantic_index
;
1451 tgsi_get_gl_varying_semantic(attr
, st
->needs_texcoord_semantic
,
1452 &semantic_name
, &semantic_index
);
1453 input_semantic_name
[slot
] = semantic_name
;
1454 input_semantic_index
[slot
] = semantic_index
;
1457 /* Also add patch inputs. */
1458 for (attr
= 0; attr
< 32; attr
++) {
1459 if (prog
->info
.patch_inputs_read
& (1u << attr
)) {
1460 GLuint slot
= num_inputs
++;
1461 GLuint patch_attr
= VARYING_SLOT_PATCH0
+ attr
;
1463 inputMapping
[patch_attr
] = slot
;
1464 inputSlotToAttr
[slot
] = patch_attr
;
1465 input_semantic_name
[slot
] = TGSI_SEMANTIC_PATCH
;
1466 input_semantic_index
[slot
] = attr
;
1470 /* initialize output semantics to defaults */
1471 for (i
= 0; i
< PIPE_MAX_SHADER_OUTPUTS
; i
++) {
1472 output_semantic_name
[i
] = TGSI_SEMANTIC_GENERIC
;
1473 output_semantic_index
[i
] = 0;
1477 * Determine number of outputs, the (default) output register
1478 * mapping and the semantic information for each output.
1480 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
1481 if (prog
->info
.outputs_written
& BITFIELD64_BIT(attr
)) {
1482 GLuint slot
= num_outputs
++;
1484 outputMapping
[attr
] = slot
;
1486 unsigned semantic_name
, semantic_index
;
1487 tgsi_get_gl_varying_semantic(attr
, st
->needs_texcoord_semantic
,
1488 &semantic_name
, &semantic_index
);
1489 output_semantic_name
[slot
] = semantic_name
;
1490 output_semantic_index
[slot
] = semantic_index
;
1494 /* Also add patch outputs. */
1495 for (attr
= 0; attr
< 32; attr
++) {
1496 if (prog
->info
.patch_outputs_written
& (1u << attr
)) {
1497 GLuint slot
= num_outputs
++;
1498 GLuint patch_attr
= VARYING_SLOT_PATCH0
+ attr
;
1500 outputMapping
[patch_attr
] = slot
;
1501 output_semantic_name
[slot
] = TGSI_SEMANTIC_PATCH
;
1502 output_semantic_index
[slot
] = attr
;
1506 st_translate_program(st
->ctx
,
1515 input_semantic_name
,
1516 input_semantic_index
,
1521 output_semantic_name
,
1522 output_semantic_index
);
1524 struct st_common_program
*stcp
= (struct st_common_program
*) prog
;
1525 out_state
->tokens
= ureg_get_tokens(ureg
, &stcp
->num_tgsi_tokens
);
1529 st_translate_stream_output_info(prog
->sh
.LinkedTransformFeedback
,
1531 &out_state
->stream_output
);
1533 st_store_ir_in_disk_cache(st
, prog
, false);
1535 if ((ST_DEBUG
& DEBUG_TGSI
) && (ST_DEBUG
& DEBUG_MESA
)) {
1536 _mesa_print_program(prog
);
1540 if (ST_DEBUG
& DEBUG_TGSI
) {
1541 tgsi_dump(out_state
->tokens
, 0);
1547 * Update stream-output info for GS/TCS/TES. Normally this is done in
1548 * st_translate_program_common() but that is not called for glsl_to_nir
1552 st_translate_program_stream_output(struct gl_program
*prog
,
1553 struct pipe_stream_output_info
*stream_output
)
1555 if (!prog
->sh
.LinkedTransformFeedback
)
1558 ubyte outputMapping
[VARYING_SLOT_TESS_MAX
];
1560 uint num_outputs
= 0;
1562 memset(outputMapping
, 0, sizeof(outputMapping
));
1565 * Determine number of outputs, the (default) output register
1566 * mapping and the semantic information for each output.
1568 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
1569 if (prog
->info
.outputs_written
& BITFIELD64_BIT(attr
)) {
1570 GLuint slot
= num_outputs
++;
1572 outputMapping
[attr
] = slot
;
1576 st_translate_stream_output_info(prog
->sh
.LinkedTransformFeedback
,
1582 * Translate a geometry program to create a new variant.
1585 st_translate_geometry_program(struct st_context
*st
,
1586 struct st_common_program
*stgp
)
1588 struct ureg_program
*ureg
;
1590 /* We have already compiled to NIR so just return */
1591 if (stgp
->shader_program
) {
1593 st_finalize_nir(st
, &stgp
->Base
, stgp
->shader_program
,
1595 st_translate_program_stream_output(&stgp
->Base
, &stgp
->tgsi
.stream_output
);
1596 st_store_ir_in_disk_cache(st
, &stgp
->Base
, true);
1600 ureg
= ureg_create_with_screen(PIPE_SHADER_GEOMETRY
, st
->pipe
->screen
);
1604 ureg_property(ureg
, TGSI_PROPERTY_GS_INPUT_PRIM
,
1605 stgp
->Base
.info
.gs
.input_primitive
);
1606 ureg_property(ureg
, TGSI_PROPERTY_GS_OUTPUT_PRIM
,
1607 stgp
->Base
.info
.gs
.output_primitive
);
1608 ureg_property(ureg
, TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES
,
1609 stgp
->Base
.info
.gs
.vertices_out
);
1610 ureg_property(ureg
, TGSI_PROPERTY_GS_INVOCATIONS
,
1611 stgp
->Base
.info
.gs
.invocations
);
1613 st_translate_program_common(st
, &stgp
->Base
, stgp
->glsl_to_tgsi
, ureg
,
1614 PIPE_SHADER_GEOMETRY
, &stgp
->tgsi
);
1616 free_glsl_to_tgsi_visitor(stgp
->glsl_to_tgsi
);
1617 stgp
->glsl_to_tgsi
= NULL
;
1623 * Get/create a basic program variant.
1625 struct st_basic_variant
*
1626 st_get_basic_variant(struct st_context
*st
,
1627 unsigned pipe_shader
,
1628 struct st_common_program
*prog
,
1629 const struct st_basic_variant_key
*key
)
1631 struct pipe_context
*pipe
= st
->pipe
;
1632 struct st_basic_variant
*v
;
1633 struct pipe_shader_state tgsi
= {0};
1635 /* Search for existing variant */
1636 for (v
= prog
->variants
; v
; v
= v
->next
) {
1637 if (memcmp(&v
->key
, key
, sizeof(*key
)) == 0) {
1644 v
= CALLOC_STRUCT(st_basic_variant
);
1647 if (prog
->tgsi
.type
== PIPE_SHADER_IR_NIR
) {
1648 tgsi
.type
= PIPE_SHADER_IR_NIR
;
1649 tgsi
.ir
.nir
= nir_shader_clone(NULL
, prog
->tgsi
.ir
.nir
);
1651 if (key
->clamp_color
)
1652 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_clamp_color_outputs
);
1654 tgsi
.stream_output
= prog
->tgsi
.stream_output
;
1656 if (key
->lower_depth_clamp
) {
1657 struct gl_program_parameter_list
*params
= prog
->Base
.Parameters
;
1659 unsigned depth_range_const
=
1660 _mesa_add_state_reference(params
, depth_range_state
);
1662 const struct tgsi_token
*tokens
;
1664 st_tgsi_lower_depth_clamp(prog
->tgsi
.tokens
,
1666 key
->clip_negative_one_to_one
);
1668 if (tokens
!= prog
->tgsi
.tokens
)
1669 tgsi_free_tokens(prog
->tgsi
.tokens
);
1671 prog
->tgsi
.tokens
= tokens
;
1672 prog
->num_tgsi_tokens
= tgsi_num_tokens(tokens
);
1676 /* fill in new variant */
1677 switch (pipe_shader
) {
1678 case PIPE_SHADER_TESS_CTRL
:
1679 v
->driver_shader
= pipe
->create_tcs_state(pipe
, &tgsi
);
1681 case PIPE_SHADER_TESS_EVAL
:
1682 v
->driver_shader
= pipe
->create_tes_state(pipe
, &tgsi
);
1684 case PIPE_SHADER_GEOMETRY
:
1685 v
->driver_shader
= pipe
->create_gs_state(pipe
, &tgsi
);
1688 assert(!"unhandled shader type");
1695 /* insert into list */
1696 v
->next
= prog
->variants
;
1706 * Translate a tessellation control program to create a new variant.
1709 st_translate_tessctrl_program(struct st_context
*st
,
1710 struct st_common_program
*sttcp
)
1712 struct ureg_program
*ureg
;
1714 /* We have already compiled to NIR so just return */
1715 if (sttcp
->shader_program
) {
1717 st_finalize_nir(st
, &sttcp
->Base
, sttcp
->shader_program
,
1718 sttcp
->tgsi
.ir
.nir
);
1719 st_store_ir_in_disk_cache(st
, &sttcp
->Base
, true);
1723 ureg
= ureg_create_with_screen(PIPE_SHADER_TESS_CTRL
, st
->pipe
->screen
);
1727 ureg_property(ureg
, TGSI_PROPERTY_TCS_VERTICES_OUT
,
1728 sttcp
->Base
.info
.tess
.tcs_vertices_out
);
1730 st_translate_program_common(st
, &sttcp
->Base
, sttcp
->glsl_to_tgsi
, ureg
,
1731 PIPE_SHADER_TESS_CTRL
, &sttcp
->tgsi
);
1733 free_glsl_to_tgsi_visitor(sttcp
->glsl_to_tgsi
);
1734 sttcp
->glsl_to_tgsi
= NULL
;
1740 * Translate a tessellation evaluation program to create a new variant.
1743 st_translate_tesseval_program(struct st_context
*st
,
1744 struct st_common_program
*sttep
)
1746 struct ureg_program
*ureg
;
1748 /* We have already compiled to NIR so just return */
1749 if (sttep
->shader_program
) {
1751 st_finalize_nir(st
, &sttep
->Base
, sttep
->shader_program
,
1752 sttep
->tgsi
.ir
.nir
);
1753 st_translate_program_stream_output(&sttep
->Base
, &sttep
->tgsi
.stream_output
);
1754 st_store_ir_in_disk_cache(st
, &sttep
->Base
, true);
1758 ureg
= ureg_create_with_screen(PIPE_SHADER_TESS_EVAL
, st
->pipe
->screen
);
1762 if (sttep
->Base
.info
.tess
.primitive_mode
== GL_ISOLINES
)
1763 ureg_property(ureg
, TGSI_PROPERTY_TES_PRIM_MODE
, GL_LINES
);
1765 ureg_property(ureg
, TGSI_PROPERTY_TES_PRIM_MODE
,
1766 sttep
->Base
.info
.tess
.primitive_mode
);
1768 STATIC_ASSERT((TESS_SPACING_EQUAL
+ 1) % 3 == PIPE_TESS_SPACING_EQUAL
);
1769 STATIC_ASSERT((TESS_SPACING_FRACTIONAL_ODD
+ 1) % 3 ==
1770 PIPE_TESS_SPACING_FRACTIONAL_ODD
);
1771 STATIC_ASSERT((TESS_SPACING_FRACTIONAL_EVEN
+ 1) % 3 ==
1772 PIPE_TESS_SPACING_FRACTIONAL_EVEN
);
1774 ureg_property(ureg
, TGSI_PROPERTY_TES_SPACING
,
1775 (sttep
->Base
.info
.tess
.spacing
+ 1) % 3);
1777 ureg_property(ureg
, TGSI_PROPERTY_TES_VERTEX_ORDER_CW
,
1778 !sttep
->Base
.info
.tess
.ccw
);
1779 ureg_property(ureg
, TGSI_PROPERTY_TES_POINT_MODE
,
1780 sttep
->Base
.info
.tess
.point_mode
);
1782 st_translate_program_common(st
, &sttep
->Base
, sttep
->glsl_to_tgsi
,
1783 ureg
, PIPE_SHADER_TESS_EVAL
, &sttep
->tgsi
);
1785 free_glsl_to_tgsi_visitor(sttep
->glsl_to_tgsi
);
1786 sttep
->glsl_to_tgsi
= NULL
;
1792 * Translate a compute program to create a new variant.
1795 st_translate_compute_program(struct st_context
*st
,
1796 struct st_common_program
*stcp
)
1798 struct ureg_program
*ureg
;
1800 if (stcp
->shader_program
) {
1801 /* no compute variants: */
1802 st_finalize_nir(st
, &stcp
->Base
, stcp
->shader_program
,
1803 (struct nir_shader
*) stcp
->tgsi
.ir
.nir
);
1804 st_store_ir_in_disk_cache(st
, &stcp
->Base
, true);
1808 ureg
= ureg_create_with_screen(PIPE_SHADER_COMPUTE
, st
->pipe
->screen
);
1812 st_translate_program_common(st
, &stcp
->Base
, stcp
->glsl_to_tgsi
, ureg
,
1813 PIPE_SHADER_COMPUTE
, &stcp
->tgsi
);
1815 free_glsl_to_tgsi_visitor(stcp
->glsl_to_tgsi
);
1816 stcp
->glsl_to_tgsi
= NULL
;
1822 * Get/create compute program variant.
1824 struct st_basic_variant
*
1825 st_get_cp_variant(struct st_context
*st
,
1826 struct pipe_shader_state
*tgsi
,
1827 unsigned shared_size
,
1828 struct st_basic_variant
**variants
)
1830 struct pipe_context
*pipe
= st
->pipe
;
1831 struct st_basic_variant
*v
;
1832 struct st_basic_variant_key key
;
1834 /* use memset, not an initializer to be sure all memory is zeroed */
1835 memset(&key
, 0, sizeof(key
));
1837 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
1839 /* Search for existing variant */
1840 for (v
= *variants
; v
; v
= v
->next
) {
1841 if (memcmp(&v
->key
, &key
, sizeof(key
)) == 0) {
1848 v
= CALLOC_STRUCT(st_basic_variant
);
1850 /* fill in new variant */
1851 struct pipe_compute_state cs
= {0};
1853 cs
.ir_type
= tgsi
->type
;
1854 cs
.req_local_mem
= shared_size
;
1856 if (tgsi
->type
== PIPE_SHADER_IR_NIR
)
1857 cs
.prog
= nir_shader_clone(NULL
, tgsi
->ir
.nir
);
1859 cs
.prog
= tgsi
->tokens
;
1861 v
->driver_shader
= pipe
->create_compute_state(pipe
, &cs
);
1864 /* insert into list */
1865 v
->next
= *variants
;
1875 * Vert/Geom/Frag programs have per-context variants. Free all the
1876 * variants attached to the given program which match the given context.
1879 destroy_program_variants(struct st_context
*st
, struct gl_program
*target
)
1881 if (!target
|| target
== &_mesa_DummyProgram
)
1884 switch (target
->Target
) {
1885 case GL_VERTEX_PROGRAM_ARB
:
1887 struct st_vertex_program
*stvp
= (struct st_vertex_program
*) target
;
1888 struct st_vp_variant
*vpv
, **prevPtr
= &stvp
->variants
;
1890 for (vpv
= stvp
->variants
; vpv
; ) {
1891 struct st_vp_variant
*next
= vpv
->next
;
1892 if (vpv
->key
.st
== st
) {
1893 /* unlink from list */
1895 /* destroy this variant */
1896 delete_vp_variant(st
, vpv
);
1899 prevPtr
= &vpv
->next
;
1905 case GL_FRAGMENT_PROGRAM_ARB
:
1907 struct st_fragment_program
*stfp
=
1908 (struct st_fragment_program
*) target
;
1909 struct st_fp_variant
*fpv
, **prevPtr
= &stfp
->variants
;
1911 for (fpv
= stfp
->variants
; fpv
; ) {
1912 struct st_fp_variant
*next
= fpv
->next
;
1913 if (fpv
->key
.st
== st
) {
1914 /* unlink from list */
1916 /* destroy this variant */
1917 delete_fp_variant(st
, fpv
);
1920 prevPtr
= &fpv
->next
;
1926 case GL_GEOMETRY_PROGRAM_NV
:
1927 case GL_TESS_CONTROL_PROGRAM_NV
:
1928 case GL_TESS_EVALUATION_PROGRAM_NV
:
1929 case GL_COMPUTE_PROGRAM_NV
:
1931 struct st_common_program
*p
= st_common_program(target
);
1932 struct st_basic_variant
*v
, **prevPtr
= &p
->variants
;
1934 for (v
= p
->variants
; v
; ) {
1935 struct st_basic_variant
*next
= v
->next
;
1936 if (v
->key
.st
== st
) {
1937 /* unlink from list */
1939 /* destroy this variant */
1940 delete_basic_variant(st
, v
, target
->Target
);
1950 _mesa_problem(NULL
, "Unexpected program target 0x%x in "
1951 "destroy_program_variants_cb()", target
->Target
);
1957 * Callback for _mesa_HashWalk. Free all the shader's program variants
1958 * which match the given context.
1961 destroy_shader_program_variants_cb(GLuint key
, void *data
, void *userData
)
1963 struct st_context
*st
= (struct st_context
*) userData
;
1964 struct gl_shader
*shader
= (struct gl_shader
*) data
;
1966 switch (shader
->Type
) {
1967 case GL_SHADER_PROGRAM_MESA
:
1969 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
1972 for (i
= 0; i
< ARRAY_SIZE(shProg
->_LinkedShaders
); i
++) {
1973 if (shProg
->_LinkedShaders
[i
])
1974 destroy_program_variants(st
, shProg
->_LinkedShaders
[i
]->Program
);
1978 case GL_VERTEX_SHADER
:
1979 case GL_FRAGMENT_SHADER
:
1980 case GL_GEOMETRY_SHADER
:
1981 case GL_TESS_CONTROL_SHADER
:
1982 case GL_TESS_EVALUATION_SHADER
:
1983 case GL_COMPUTE_SHADER
:
1992 * Callback for _mesa_HashWalk. Free all the program variants which match
1993 * the given context.
1996 destroy_program_variants_cb(GLuint key
, void *data
, void *userData
)
1998 struct st_context
*st
= (struct st_context
*) userData
;
1999 struct gl_program
*program
= (struct gl_program
*) data
;
2000 destroy_program_variants(st
, program
);
2005 * Walk over all shaders and programs to delete any variants which
2006 * belong to the given context.
2007 * This is called during context tear-down.
2010 st_destroy_program_variants(struct st_context
*st
)
2012 /* If shaders can be shared with other contexts, the last context will
2013 * call DeleteProgram on all shaders, releasing everything.
2015 if (st
->has_shareable_shaders
)
2018 /* ARB vert/frag program */
2019 _mesa_HashWalk(st
->ctx
->Shared
->Programs
,
2020 destroy_program_variants_cb
, st
);
2022 /* GLSL vert/frag/geom shaders */
2023 _mesa_HashWalk(st
->ctx
->Shared
->ShaderObjects
,
2024 destroy_shader_program_variants_cb
, st
);
2029 * For debugging, print/dump the current vertex program.
2032 st_print_current_vertex_program(void)
2034 GET_CURRENT_CONTEXT(ctx
);
2036 if (ctx
->VertexProgram
._Current
) {
2037 struct st_vertex_program
*stvp
=
2038 (struct st_vertex_program
*) ctx
->VertexProgram
._Current
;
2039 struct st_vp_variant
*stv
;
2041 debug_printf("Vertex program %u\n", stvp
->Base
.Id
);
2043 for (stv
= stvp
->variants
; stv
; stv
= stv
->next
) {
2044 debug_printf("variant %p\n", stv
);
2045 tgsi_dump(stv
->tgsi
.tokens
, 0);
2052 * Compile one shader variant.
2055 st_precompile_shader_variant(struct st_context
*st
,
2056 struct gl_program
*prog
)
2058 switch (prog
->Target
) {
2059 case GL_VERTEX_PROGRAM_ARB
: {
2060 struct st_vertex_program
*p
= (struct st_vertex_program
*)prog
;
2061 struct st_vp_variant_key key
;
2063 memset(&key
, 0, sizeof(key
));
2065 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
2066 st_get_vp_variant(st
, p
, &key
);
2070 case GL_TESS_CONTROL_PROGRAM_NV
: {
2071 struct st_common_program
*p
= st_common_program(prog
);
2072 struct st_basic_variant_key key
;
2074 memset(&key
, 0, sizeof(key
));
2076 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
2077 st_get_basic_variant(st
, PIPE_SHADER_TESS_CTRL
, p
, &key
);
2081 case GL_TESS_EVALUATION_PROGRAM_NV
: {
2082 struct st_common_program
*p
= st_common_program(prog
);
2083 struct st_basic_variant_key key
;
2085 memset(&key
, 0, sizeof(key
));
2087 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
2088 st_get_basic_variant(st
, PIPE_SHADER_TESS_EVAL
, p
, &key
);
2092 case GL_GEOMETRY_PROGRAM_NV
: {
2093 struct st_common_program
*p
= st_common_program(prog
);
2094 struct st_basic_variant_key key
;
2096 memset(&key
, 0, sizeof(key
));
2098 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
2099 st_get_basic_variant(st
, PIPE_SHADER_GEOMETRY
, p
, &key
);
2103 case GL_FRAGMENT_PROGRAM_ARB
: {
2104 struct st_fragment_program
*p
= (struct st_fragment_program
*)prog
;
2105 struct st_fp_variant_key key
;
2107 memset(&key
, 0, sizeof(key
));
2109 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
2110 st_get_fp_variant(st
, p
, &key
);
2114 case GL_COMPUTE_PROGRAM_NV
: {
2115 struct st_common_program
*p
= (struct st_common_program
*)prog
;
2116 st_get_cp_variant(st
, &p
->tgsi
, prog
->info
.cs
.shared_size
, &p
->variants
);