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 st_prepare_vertex_program(struct st_vertex_program
*stvp
)
419 stvp
->num_inputs
= 0;
420 memset(stvp
->input_to_index
, ~0, sizeof(stvp
->input_to_index
));
421 memset(stvp
->result_to_output
, ~0, sizeof(stvp
->result_to_output
));
423 /* Determine number of inputs, the mappings between VERT_ATTRIB_x
424 * and TGSI generic input indexes, plus input attrib semantic info.
426 for (unsigned attr
= 0; attr
< VERT_ATTRIB_MAX
; attr
++) {
427 if ((stvp
->Base
.info
.inputs_read
& BITFIELD64_BIT(attr
)) != 0) {
428 stvp
->input_to_index
[attr
] = stvp
->num_inputs
;
429 stvp
->index_to_input
[stvp
->num_inputs
] = attr
;
432 if ((stvp
->Base
.DualSlotInputs
& BITFIELD64_BIT(attr
)) != 0) {
433 /* add placeholder for second part of a double attribute */
434 stvp
->index_to_input
[stvp
->num_inputs
] = ST_DOUBLE_ATTRIB_PLACEHOLDER
;
439 /* pre-setup potentially unused edgeflag input */
440 stvp
->input_to_index
[VERT_ATTRIB_EDGEFLAG
] = stvp
->num_inputs
;
441 stvp
->index_to_input
[stvp
->num_inputs
] = VERT_ATTRIB_EDGEFLAG
;
443 /* Compute mapping of vertex program outputs to slots. */
444 unsigned num_outputs
= 0;
445 for (unsigned attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
446 if (stvp
->Base
.info
.outputs_written
& BITFIELD64_BIT(attr
))
447 stvp
->result_to_output
[attr
] = num_outputs
++;
449 /* pre-setup potentially unused edgeflag output */
450 stvp
->result_to_output
[VARYING_SLOT_EDGE
] = num_outputs
;
454 st_translate_stream_output_info(struct gl_program
*prog
)
456 struct gl_transform_feedback_info
*info
= prog
->sh
.LinkedTransformFeedback
;
460 /* Determine the (default) output register mapping for each output. */
461 unsigned num_outputs
= 0;
462 ubyte output_mapping
[VARYING_SLOT_TESS_MAX
];
463 memset(output_mapping
, 0, sizeof(output_mapping
));
465 for (unsigned attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
466 if (prog
->info
.outputs_written
& BITFIELD64_BIT(attr
))
467 output_mapping
[attr
] = num_outputs
++;
470 /* Translate stream output info. */
471 struct pipe_stream_output_info
*so_info
= NULL
;
472 if (prog
->info
.stage
== MESA_SHADER_VERTEX
)
473 so_info
= &((struct st_vertex_program
*)prog
)->tgsi
.stream_output
;
475 so_info
= &((struct st_common_program
*)prog
)->tgsi
.stream_output
;
477 for (unsigned i
= 0; i
< info
->NumOutputs
; i
++) {
478 so_info
->output
[i
].register_index
=
479 output_mapping
[info
->Outputs
[i
].OutputRegister
];
480 so_info
->output
[i
].start_component
= info
->Outputs
[i
].ComponentOffset
;
481 so_info
->output
[i
].num_components
= info
->Outputs
[i
].NumComponents
;
482 so_info
->output
[i
].output_buffer
= info
->Outputs
[i
].OutputBuffer
;
483 so_info
->output
[i
].dst_offset
= info
->Outputs
[i
].DstOffset
;
484 so_info
->output
[i
].stream
= info
->Outputs
[i
].StreamId
;
487 for (unsigned i
= 0; i
< PIPE_MAX_SO_BUFFERS
; i
++) {
488 so_info
->stride
[i
] = info
->Buffers
[i
].Stride
;
490 so_info
->num_outputs
= info
->NumOutputs
;
494 * Translate a vertex program.
497 st_translate_vertex_program(struct st_context
*st
,
498 struct st_vertex_program
*stvp
)
500 struct ureg_program
*ureg
;
501 enum pipe_error error
;
502 unsigned num_outputs
= 0;
504 ubyte output_semantic_name
[VARYING_SLOT_MAX
] = {0};
505 ubyte output_semantic_index
[VARYING_SLOT_MAX
] = {0};
507 if (stvp
->Base
.arb
.IsPositionInvariant
)
508 _mesa_insert_mvp_code(st
->ctx
, &stvp
->Base
);
510 st_prepare_vertex_program(stvp
);
513 if (!stvp
->glsl_to_tgsi
) {
514 _mesa_remove_output_reads(&stvp
->Base
, PROGRAM_OUTPUT
);
516 /* This determines which states will be updated when the assembly
519 stvp
->affected_states
= ST_NEW_VS_STATE
|
521 ST_NEW_VERTEX_ARRAYS
;
523 if (stvp
->Base
.Parameters
->NumParameters
)
524 stvp
->affected_states
|= ST_NEW_VS_CONSTANTS
;
526 /* No samplers are allowed in ARB_vp. */
529 /* Get semantic names and indices. */
530 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
531 if (stvp
->Base
.info
.outputs_written
& BITFIELD64_BIT(attr
)) {
532 unsigned slot
= num_outputs
++;
533 unsigned semantic_name
, semantic_index
;
534 tgsi_get_gl_varying_semantic(attr
, st
->needs_texcoord_semantic
,
535 &semantic_name
, &semantic_index
);
536 output_semantic_name
[slot
] = semantic_name
;
537 output_semantic_index
[slot
] = semantic_index
;
540 /* pre-setup potentially unused edgeflag output */
541 output_semantic_name
[num_outputs
] = TGSI_SEMANTIC_EDGEFLAG
;
542 output_semantic_index
[num_outputs
] = 0;
544 ureg
= ureg_create_with_screen(PIPE_SHADER_VERTEX
, st
->pipe
->screen
);
548 if (stvp
->Base
.info
.clip_distance_array_size
)
549 ureg_property(ureg
, TGSI_PROPERTY_NUM_CLIPDIST_ENABLED
,
550 stvp
->Base
.info
.clip_distance_array_size
);
551 if (stvp
->Base
.info
.cull_distance_array_size
)
552 ureg_property(ureg
, TGSI_PROPERTY_NUM_CULLDIST_ENABLED
,
553 stvp
->Base
.info
.cull_distance_array_size
);
555 if (ST_DEBUG
& DEBUG_MESA
) {
556 _mesa_print_program(&stvp
->Base
);
557 _mesa_print_program_parameters(st
->ctx
, &stvp
->Base
);
561 if (stvp
->glsl_to_tgsi
) {
562 error
= st_translate_program(st
->ctx
,
569 stvp
->input_to_index
,
570 NULL
, /* inputSlotToAttr */
571 NULL
, /* input semantic name */
572 NULL
, /* input semantic index */
573 NULL
, /* interp mode */
576 stvp
->result_to_output
,
577 output_semantic_name
,
578 output_semantic_index
);
580 st_translate_stream_output_info(&stvp
->Base
);
582 free_glsl_to_tgsi_visitor(stvp
->glsl_to_tgsi
);
584 error
= st_translate_mesa_program(st
->ctx
,
590 stvp
->input_to_index
,
591 NULL
, /* input semantic name */
592 NULL
, /* input semantic index */
596 stvp
->result_to_output
,
597 output_semantic_name
,
598 output_semantic_index
);
601 debug_printf("%s: failed to translate Mesa program:\n", __func__
);
602 _mesa_print_program(&stvp
->Base
);
607 stvp
->tgsi
.tokens
= ureg_get_tokens(ureg
, &stvp
->num_tgsi_tokens
);
610 if (stvp
->glsl_to_tgsi
) {
611 stvp
->glsl_to_tgsi
= NULL
;
612 st_store_ir_in_disk_cache(st
, &stvp
->Base
, false);
617 * This must be done after the translation to TGSI is done, because
618 * we'll pass the NIR shader to the driver and the TGSI version to
619 * the draw module for the select/feedback/rasterpos code.
621 if (st
->pipe
->screen
->get_shader_param(st
->pipe
->screen
,
623 PIPE_SHADER_CAP_PREFERRED_IR
)) {
624 assert(!stvp
->glsl_to_tgsi
);
627 st_translate_prog_to_nir(st
, &stvp
->Base
, MESA_SHADER_VERTEX
);
629 if (stvp
->tgsi
.ir
.nir
)
630 ralloc_free(stvp
->tgsi
.ir
.nir
);
631 stvp
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
632 stvp
->tgsi
.ir
.nir
= nir
;
633 stvp
->Base
.nir
= nir
;
637 return stvp
->tgsi
.tokens
!= NULL
;
640 static const gl_state_index16 depth_range_state
[STATE_LENGTH
] =
641 { STATE_DEPTH_RANGE
};
643 static struct st_vp_variant
*
644 st_create_vp_variant(struct st_context
*st
,
645 struct st_vertex_program
*stvp
,
646 const struct st_vp_variant_key
*key
)
648 struct st_vp_variant
*vpv
= CALLOC_STRUCT(st_vp_variant
);
649 struct pipe_context
*pipe
= st
->pipe
;
651 static const gl_state_index16 point_size_state
[STATE_LENGTH
] =
652 { STATE_INTERNAL
, STATE_POINT_SIZE_CLAMPED
, 0 };
653 struct gl_program_parameter_list
*params
= stvp
->Base
.Parameters
;
656 vpv
->tgsi
.stream_output
= stvp
->tgsi
.stream_output
;
657 vpv
->num_inputs
= stvp
->num_inputs
;
659 /* When generating a NIR program, we usually don't have TGSI tokens.
660 * However, we do create them for ARB_vertex_program / fixed-function VS
661 * programs which we may need to use with the draw module for legacy
662 * feedback/select emulation. If they exist, copy them.
664 if (stvp
->tgsi
.tokens
)
665 vpv
->tgsi
.tokens
= tgsi_dup_tokens(stvp
->tgsi
.tokens
);
667 if (stvp
->tgsi
.type
== PIPE_SHADER_IR_NIR
) {
668 vpv
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
669 vpv
->tgsi
.ir
.nir
= nir_shader_clone(NULL
, stvp
->tgsi
.ir
.nir
);
670 if (key
->clamp_color
)
671 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_clamp_color_outputs
);
672 if (key
->passthrough_edgeflags
) {
673 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_passthrough_edgeflags
);
677 if (key
->lower_point_size
) {
678 _mesa_add_state_reference(params
, point_size_state
);
679 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_point_size_mov
,
683 if (key
->lower_ucp
) {
684 struct pipe_screen
*screen
= pipe
->screen
;
685 bool can_compact
= screen
->get_param(screen
,
686 PIPE_CAP_NIR_COMPACT_ARRAYS
);
688 bool use_eye
= st
->ctx
->_Shader
->CurrentProgram
[MESA_SHADER_VERTEX
] != NULL
;
689 gl_state_index16 clipplane_state
[MAX_CLIP_PLANES
][STATE_LENGTH
];
690 for (int i
= 0; i
< MAX_CLIP_PLANES
; ++i
) {
692 clipplane_state
[i
][0] = STATE_CLIPPLANE
;
693 clipplane_state
[i
][1] = i
;
695 clipplane_state
[i
][0] = STATE_INTERNAL
;
696 clipplane_state
[i
][1] = STATE_CLIP_INTERNAL
;
697 clipplane_state
[i
][2] = i
;
699 _mesa_add_state_reference(params
, clipplane_state
[i
]);
702 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_clip_vs
, key
->lower_ucp
,
703 true, can_compact
, clipplane_state
);
704 NIR_PASS_V(vpv
->tgsi
.ir
.nir
, nir_lower_io_to_temporaries
,
705 nir_shader_get_entrypoint(vpv
->tgsi
.ir
.nir
), true, false);
708 st_finalize_nir(st
, &stvp
->Base
, stvp
->shader_program
,
711 vpv
->driver_shader
= pipe
->create_vs_state(pipe
, &vpv
->tgsi
);
712 /* driver takes ownership of IR: */
713 vpv
->tgsi
.ir
.nir
= NULL
;
717 /* Emulate features. */
718 if (key
->clamp_color
|| key
->passthrough_edgeflags
) {
719 const struct tgsi_token
*tokens
;
721 (key
->clamp_color
? TGSI_EMU_CLAMP_COLOR_OUTPUTS
: 0) |
722 (key
->passthrough_edgeflags
? TGSI_EMU_PASSTHROUGH_EDGEFLAG
: 0);
724 tokens
= tgsi_emulate(vpv
->tgsi
.tokens
, flags
);
727 tgsi_free_tokens(vpv
->tgsi
.tokens
);
728 vpv
->tgsi
.tokens
= tokens
;
730 if (key
->passthrough_edgeflags
)
733 fprintf(stderr
, "mesa: cannot emulate deprecated features\n");
736 if (key
->lower_depth_clamp
) {
737 unsigned depth_range_const
=
738 _mesa_add_state_reference(params
, depth_range_state
);
740 const struct tgsi_token
*tokens
;
741 tokens
= st_tgsi_lower_depth_clamp(vpv
->tgsi
.tokens
, depth_range_const
,
742 key
->clip_negative_one_to_one
);
743 if (tokens
!= vpv
->tgsi
.tokens
)
744 tgsi_free_tokens(vpv
->tgsi
.tokens
);
745 vpv
->tgsi
.tokens
= tokens
;
748 if (ST_DEBUG
& DEBUG_TGSI
) {
749 tgsi_dump(vpv
->tgsi
.tokens
, 0);
753 vpv
->driver_shader
= pipe
->create_vs_state(pipe
, &vpv
->tgsi
);
759 * Find/create a vertex program variant.
761 struct st_vp_variant
*
762 st_get_vp_variant(struct st_context
*st
,
763 struct st_vertex_program
*stvp
,
764 const struct st_vp_variant_key
*key
)
766 struct st_vp_variant
*vpv
;
768 /* Search for existing variant */
769 for (vpv
= stvp
->variants
; vpv
; vpv
= vpv
->next
) {
770 if (memcmp(&vpv
->key
, key
, sizeof(*key
)) == 0) {
777 vpv
= st_create_vp_variant(st
, stvp
, key
);
779 for (unsigned index
= 0; index
< vpv
->num_inputs
; ++index
) {
780 unsigned attr
= stvp
->index_to_input
[index
];
781 if (attr
== ST_DOUBLE_ATTRIB_PLACEHOLDER
)
783 vpv
->vert_attrib_mask
|= 1u << attr
;
786 /* insert into list */
787 vpv
->next
= stvp
->variants
;
788 stvp
->variants
= vpv
;
797 * Translate a Mesa fragment shader into a TGSI shader.
800 st_translate_fragment_program(struct st_context
*st
,
801 struct st_fragment_program
*stfp
)
803 /* Non-GLSL programs: */
804 if (!stfp
->glsl_to_tgsi
) {
805 _mesa_remove_output_reads(&stfp
->Base
, PROGRAM_OUTPUT
);
806 if (st
->ctx
->Const
.GLSLFragCoordIsSysVal
)
807 _mesa_program_fragment_position_to_sysval(&stfp
->Base
);
809 /* This determines which states will be updated when the assembly
812 * fragment.position and glDrawPixels always use constants.
814 stfp
->affected_states
= ST_NEW_FS_STATE
|
815 ST_NEW_SAMPLE_SHADING
|
819 /* Just set them for ATI_fs unconditionally. */
820 stfp
->affected_states
|= ST_NEW_FS_SAMPLER_VIEWS
|
824 if (stfp
->Base
.SamplersUsed
)
825 stfp
->affected_states
|= ST_NEW_FS_SAMPLER_VIEWS
|
829 /* Translate to NIR. */
831 st
->pipe
->screen
->get_shader_param(st
->pipe
->screen
,
832 PIPE_SHADER_FRAGMENT
,
833 PIPE_SHADER_CAP_PREFERRED_IR
)) {
835 st_translate_prog_to_nir(st
, &stfp
->Base
, MESA_SHADER_FRAGMENT
);
837 if (stfp
->tgsi
.ir
.nir
)
838 ralloc_free(stfp
->tgsi
.ir
.nir
);
839 stfp
->tgsi
.type
= PIPE_SHADER_IR_NIR
;
840 stfp
->tgsi
.ir
.nir
= nir
;
841 stfp
->Base
.nir
= nir
;
846 ubyte outputMapping
[2 * FRAG_RESULT_MAX
];
847 ubyte inputMapping
[VARYING_SLOT_MAX
];
848 ubyte inputSlotToAttr
[VARYING_SLOT_MAX
];
849 ubyte interpMode
[PIPE_MAX_SHADER_INPUTS
]; /* XXX size? */
851 GLbitfield64 inputsRead
;
852 struct ureg_program
*ureg
;
854 GLboolean write_all
= GL_FALSE
;
856 ubyte input_semantic_name
[PIPE_MAX_SHADER_INPUTS
];
857 ubyte input_semantic_index
[PIPE_MAX_SHADER_INPUTS
];
858 uint fs_num_inputs
= 0;
860 ubyte fs_output_semantic_name
[PIPE_MAX_SHADER_OUTPUTS
];
861 ubyte fs_output_semantic_index
[PIPE_MAX_SHADER_OUTPUTS
];
862 uint fs_num_outputs
= 0;
864 memset(inputSlotToAttr
, ~0, sizeof(inputSlotToAttr
));
867 * Convert Mesa program inputs to TGSI input register semantics.
869 inputsRead
= stfp
->Base
.info
.inputs_read
;
870 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
871 if ((inputsRead
& BITFIELD64_BIT(attr
)) != 0) {
872 const GLuint slot
= fs_num_inputs
++;
874 inputMapping
[attr
] = slot
;
875 inputSlotToAttr
[slot
] = attr
;
878 case VARYING_SLOT_POS
:
879 input_semantic_name
[slot
] = TGSI_SEMANTIC_POSITION
;
880 input_semantic_index
[slot
] = 0;
881 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
883 case VARYING_SLOT_COL0
:
884 input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
885 input_semantic_index
[slot
] = 0;
886 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
887 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_COLOR
;
889 case VARYING_SLOT_COL1
:
890 input_semantic_name
[slot
] = TGSI_SEMANTIC_COLOR
;
891 input_semantic_index
[slot
] = 1;
892 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
893 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_COLOR
;
895 case VARYING_SLOT_FOGC
:
896 input_semantic_name
[slot
] = TGSI_SEMANTIC_FOG
;
897 input_semantic_index
[slot
] = 0;
898 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
900 case VARYING_SLOT_FACE
:
901 input_semantic_name
[slot
] = TGSI_SEMANTIC_FACE
;
902 input_semantic_index
[slot
] = 0;
903 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
905 case VARYING_SLOT_PRIMITIVE_ID
:
906 input_semantic_name
[slot
] = TGSI_SEMANTIC_PRIMID
;
907 input_semantic_index
[slot
] = 0;
908 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
910 case VARYING_SLOT_LAYER
:
911 input_semantic_name
[slot
] = TGSI_SEMANTIC_LAYER
;
912 input_semantic_index
[slot
] = 0;
913 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
915 case VARYING_SLOT_VIEWPORT
:
916 input_semantic_name
[slot
] = TGSI_SEMANTIC_VIEWPORT_INDEX
;
917 input_semantic_index
[slot
] = 0;
918 interpMode
[slot
] = TGSI_INTERPOLATE_CONSTANT
;
920 case VARYING_SLOT_CLIP_DIST0
:
921 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
922 input_semantic_index
[slot
] = 0;
923 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
925 case VARYING_SLOT_CLIP_DIST1
:
926 input_semantic_name
[slot
] = TGSI_SEMANTIC_CLIPDIST
;
927 input_semantic_index
[slot
] = 1;
928 interpMode
[slot
] = TGSI_INTERPOLATE_PERSPECTIVE
;
930 case VARYING_SLOT_CULL_DIST0
:
931 case VARYING_SLOT_CULL_DIST1
:
932 /* these should have been lowered by GLSL */
935 /* In most cases, there is nothing special about these
936 * inputs, so adopt a convention to use the generic
937 * semantic name and the mesa VARYING_SLOT_ number as the
940 * All that is required is that the vertex shader labels
941 * its own outputs similarly, and that the vertex shader
942 * generates at least every output required by the
943 * fragment shader plus fixed-function hardware (such as
946 * However, some drivers may need us to identify the PNTC and TEXi
947 * varyings if, for example, their capability to replace them with
948 * sprite coordinates is limited.
950 case VARYING_SLOT_PNTC
:
951 if (st
->needs_texcoord_semantic
) {
952 input_semantic_name
[slot
] = TGSI_SEMANTIC_PCOORD
;
953 input_semantic_index
[slot
] = 0;
954 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
958 case VARYING_SLOT_TEX0
:
959 case VARYING_SLOT_TEX1
:
960 case VARYING_SLOT_TEX2
:
961 case VARYING_SLOT_TEX3
:
962 case VARYING_SLOT_TEX4
:
963 case VARYING_SLOT_TEX5
:
964 case VARYING_SLOT_TEX6
:
965 case VARYING_SLOT_TEX7
:
966 if (st
->needs_texcoord_semantic
) {
967 input_semantic_name
[slot
] = TGSI_SEMANTIC_TEXCOORD
;
968 input_semantic_index
[slot
] = attr
- VARYING_SLOT_TEX0
;
969 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
970 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_PERSPECTIVE
;
974 case VARYING_SLOT_VAR0
:
976 /* Semantic indices should be zero-based because drivers may choose
977 * to assign a fixed slot determined by that index.
978 * This is useful because ARB_separate_shader_objects uses location
979 * qualifiers for linkage, and if the semantic index corresponds to
980 * these locations, linkage passes in the driver become unecessary.
982 * If needs_texcoord_semantic is true, no semantic indices will be
983 * consumed for the TEXi varyings, and we can base the locations of
984 * the user varyings on VAR0. Otherwise, we use TEX0 as base index.
986 assert(attr
>= VARYING_SLOT_VAR0
|| attr
== VARYING_SLOT_PNTC
||
987 (attr
>= VARYING_SLOT_TEX0
&& attr
<= VARYING_SLOT_TEX7
));
988 input_semantic_name
[slot
] = TGSI_SEMANTIC_GENERIC
;
989 input_semantic_index
[slot
] = st_get_generic_varying_index(st
, attr
);
990 if (attr
== VARYING_SLOT_PNTC
)
991 interpMode
[slot
] = TGSI_INTERPOLATE_LINEAR
;
993 interpMode
[slot
] = stfp
->glsl_to_tgsi
?
994 TGSI_INTERPOLATE_COUNT
: TGSI_INTERPOLATE_PERSPECTIVE
;
1000 inputMapping
[attr
] = -1;
1005 * Semantics and mapping for outputs
1007 GLbitfield64 outputsWritten
= stfp
->Base
.info
.outputs_written
;
1009 /* if z is written, emit that first */
1010 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_DEPTH
)) {
1011 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_POSITION
;
1012 fs_output_semantic_index
[fs_num_outputs
] = 0;
1013 outputMapping
[FRAG_RESULT_DEPTH
] = fs_num_outputs
;
1015 outputsWritten
&= ~(1 << FRAG_RESULT_DEPTH
);
1018 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_STENCIL
)) {
1019 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_STENCIL
;
1020 fs_output_semantic_index
[fs_num_outputs
] = 0;
1021 outputMapping
[FRAG_RESULT_STENCIL
] = fs_num_outputs
;
1023 outputsWritten
&= ~(1 << FRAG_RESULT_STENCIL
);
1026 if (outputsWritten
& BITFIELD64_BIT(FRAG_RESULT_SAMPLE_MASK
)) {
1027 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_SAMPLEMASK
;
1028 fs_output_semantic_index
[fs_num_outputs
] = 0;
1029 outputMapping
[FRAG_RESULT_SAMPLE_MASK
] = fs_num_outputs
;
1031 outputsWritten
&= ~(1 << FRAG_RESULT_SAMPLE_MASK
);
1034 /* handle remaining outputs (color) */
1035 for (attr
= 0; attr
< ARRAY_SIZE(outputMapping
); attr
++) {
1036 const GLbitfield64 written
= attr
< FRAG_RESULT_MAX
? outputsWritten
:
1037 stfp
->Base
.SecondaryOutputsWritten
;
1038 const unsigned loc
= attr
% FRAG_RESULT_MAX
;
1040 if (written
& BITFIELD64_BIT(loc
)) {
1042 case FRAG_RESULT_DEPTH
:
1043 case FRAG_RESULT_STENCIL
:
1044 case FRAG_RESULT_SAMPLE_MASK
:
1048 case FRAG_RESULT_COLOR
:
1049 write_all
= GL_TRUE
; /* fallthrough */
1052 assert(loc
== FRAG_RESULT_COLOR
||
1053 (FRAG_RESULT_DATA0
<= loc
&& loc
< FRAG_RESULT_MAX
));
1055 index
= (loc
== FRAG_RESULT_COLOR
) ? 0 : (loc
- FRAG_RESULT_DATA0
);
1057 if (attr
>= FRAG_RESULT_MAX
) {
1058 /* Secondary color for dual source blending. */
1063 fs_output_semantic_name
[fs_num_outputs
] = TGSI_SEMANTIC_COLOR
;
1064 fs_output_semantic_index
[fs_num_outputs
] = index
;
1065 outputMapping
[attr
] = fs_num_outputs
;
1074 ureg
= ureg_create_with_screen(PIPE_SHADER_FRAGMENT
, st
->pipe
->screen
);
1078 if (ST_DEBUG
& DEBUG_MESA
) {
1079 _mesa_print_program(&stfp
->Base
);
1080 _mesa_print_program_parameters(st
->ctx
, &stfp
->Base
);
1083 if (write_all
== GL_TRUE
)
1084 ureg_property(ureg
, TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
, 1);
1086 if (stfp
->Base
.info
.fs
.depth_layout
!= FRAG_DEPTH_LAYOUT_NONE
) {
1087 switch (stfp
->Base
.info
.fs
.depth_layout
) {
1088 case FRAG_DEPTH_LAYOUT_ANY
:
1089 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
1090 TGSI_FS_DEPTH_LAYOUT_ANY
);
1092 case FRAG_DEPTH_LAYOUT_GREATER
:
1093 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
1094 TGSI_FS_DEPTH_LAYOUT_GREATER
);
1096 case FRAG_DEPTH_LAYOUT_LESS
:
1097 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
1098 TGSI_FS_DEPTH_LAYOUT_LESS
);
1100 case FRAG_DEPTH_LAYOUT_UNCHANGED
:
1101 ureg_property(ureg
, TGSI_PROPERTY_FS_DEPTH_LAYOUT
,
1102 TGSI_FS_DEPTH_LAYOUT_UNCHANGED
);
1109 if (stfp
->glsl_to_tgsi
) {
1110 st_translate_program(st
->ctx
,
1111 PIPE_SHADER_FRAGMENT
,
1119 input_semantic_name
,
1120 input_semantic_index
,
1125 fs_output_semantic_name
,
1126 fs_output_semantic_index
);
1128 free_glsl_to_tgsi_visitor(stfp
->glsl_to_tgsi
);
1129 } else if (stfp
->ati_fs
)
1130 st_translate_atifs_program(ureg
,
1136 input_semantic_name
,
1137 input_semantic_index
,
1142 fs_output_semantic_name
,
1143 fs_output_semantic_index
);
1145 st_translate_mesa_program(st
->ctx
,
1146 PIPE_SHADER_FRAGMENT
,
1152 input_semantic_name
,
1153 input_semantic_index
,
1158 fs_output_semantic_name
,
1159 fs_output_semantic_index
);
1161 stfp
->tgsi
.tokens
= ureg_get_tokens(ureg
, &stfp
->num_tgsi_tokens
);
1164 if (stfp
->glsl_to_tgsi
) {
1165 stfp
->glsl_to_tgsi
= NULL
;
1166 st_store_ir_in_disk_cache(st
, &stfp
->Base
, false);
1169 return stfp
->tgsi
.tokens
!= NULL
;
1172 static struct st_fp_variant
*
1173 st_create_fp_variant(struct st_context
*st
,
1174 struct st_fragment_program
*stfp
,
1175 const struct st_fp_variant_key
*key
)
1177 struct pipe_context
*pipe
= st
->pipe
;
1178 struct st_fp_variant
*variant
= CALLOC_STRUCT(st_fp_variant
);
1179 struct pipe_shader_state tgsi
= {0};
1180 struct gl_program_parameter_list
*params
= stfp
->Base
.Parameters
;
1181 static const gl_state_index16 texcoord_state
[STATE_LENGTH
] =
1182 { STATE_INTERNAL
, STATE_CURRENT_ATTRIB
, VERT_ATTRIB_TEX0
};
1183 static const gl_state_index16 scale_state
[STATE_LENGTH
] =
1184 { STATE_INTERNAL
, STATE_PT_SCALE
};
1185 static const gl_state_index16 bias_state
[STATE_LENGTH
] =
1186 { STATE_INTERNAL
, STATE_PT_BIAS
};
1187 static const gl_state_index16 alpha_ref_state
[STATE_LENGTH
] =
1188 { STATE_INTERNAL
, STATE_ALPHA_REF
};
1193 if (stfp
->tgsi
.type
== PIPE_SHADER_IR_NIR
) {
1194 tgsi
.type
= PIPE_SHADER_IR_NIR
;
1195 tgsi
.ir
.nir
= nir_shader_clone(NULL
, stfp
->tgsi
.ir
.nir
);
1197 if (key
->clamp_color
)
1198 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_clamp_color_outputs
);
1200 if (key
->lower_flatshade
)
1201 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_flatshade
);
1203 if (key
->lower_alpha_func
!= COMPARE_FUNC_NEVER
) {
1204 _mesa_add_state_reference(params
, alpha_ref_state
);
1205 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_alpha_test
, key
->lower_alpha_func
,
1206 false, alpha_ref_state
);
1209 if (key
->lower_two_sided_color
)
1210 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_two_sided_color
);
1212 if (key
->persample_shading
) {
1213 nir_shader
*shader
= tgsi
.ir
.nir
;
1214 nir_foreach_variable(var
, &shader
->inputs
)
1215 var
->data
.sample
= true;
1218 assert(!(key
->bitmap
&& key
->drawpixels
));
1222 nir_lower_bitmap_options options
= {0};
1224 variant
->bitmap_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
1225 options
.sampler
= variant
->bitmap_sampler
;
1226 options
.swizzle_xxxx
= st
->bitmap
.tex_format
== PIPE_FORMAT_R8_UNORM
;
1228 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_bitmap
, &options
);
1231 /* glDrawPixels (color only) */
1232 if (key
->drawpixels
) {
1233 nir_lower_drawpixels_options options
= {{0}};
1234 unsigned samplers_used
= stfp
->Base
.SamplersUsed
;
1236 /* Find the first unused slot. */
1237 variant
->drawpix_sampler
= ffs(~samplers_used
) - 1;
1238 options
.drawpix_sampler
= variant
->drawpix_sampler
;
1239 samplers_used
|= (1 << variant
->drawpix_sampler
);
1241 options
.pixel_maps
= key
->pixelMaps
;
1242 if (key
->pixelMaps
) {
1243 variant
->pixelmap_sampler
= ffs(~samplers_used
) - 1;
1244 options
.pixelmap_sampler
= variant
->pixelmap_sampler
;
1247 options
.scale_and_bias
= key
->scaleAndBias
;
1248 if (key
->scaleAndBias
) {
1249 _mesa_add_state_reference(params
, scale_state
);
1250 memcpy(options
.scale_state_tokens
, scale_state
,
1251 sizeof(options
.scale_state_tokens
));
1252 _mesa_add_state_reference(params
, bias_state
);
1253 memcpy(options
.bias_state_tokens
, bias_state
,
1254 sizeof(options
.bias_state_tokens
));
1257 _mesa_add_state_reference(params
, texcoord_state
);
1258 memcpy(options
.texcoord_state_tokens
, texcoord_state
,
1259 sizeof(options
.texcoord_state_tokens
));
1261 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_drawpixels
, &options
);
1264 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
||
1265 key
->external
.lower_xy_uxvx
|| key
->external
.lower_yx_xuxv
||
1266 key
->external
.lower_ayuv
|| key
->external
.lower_xyuv
)) {
1267 nir_lower_tex_options options
= {0};
1268 options
.lower_y_uv_external
= key
->external
.lower_nv12
;
1269 options
.lower_y_u_v_external
= key
->external
.lower_iyuv
;
1270 options
.lower_xy_uxvx_external
= key
->external
.lower_xy_uxvx
;
1271 options
.lower_yx_xuxv_external
= key
->external
.lower_yx_xuxv
;
1272 options
.lower_ayuv_external
= key
->external
.lower_ayuv
;
1273 options
.lower_xyuv_external
= key
->external
.lower_xyuv
;
1274 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_tex
, &options
);
1277 st_finalize_nir(st
, &stfp
->Base
, stfp
->shader_program
, tgsi
.ir
.nir
);
1279 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
||
1280 key
->external
.lower_xy_uxvx
|| key
->external
.lower_yx_xuxv
)) {
1281 /* This pass needs to happen *after* nir_lower_sampler */
1282 NIR_PASS_V(tgsi
.ir
.nir
, st_nir_lower_tex_src_plane
,
1283 ~stfp
->Base
.SamplersUsed
,
1284 key
->external
.lower_nv12
|| key
->external
.lower_xy_uxvx
||
1285 key
->external
.lower_yx_xuxv
,
1286 key
->external
.lower_iyuv
);
1289 /* Some of the lowering above may have introduced new varyings */
1290 nir_shader_gather_info(tgsi
.ir
.nir
,
1291 nir_shader_get_entrypoint(tgsi
.ir
.nir
));
1293 variant
->driver_shader
= pipe
->create_fs_state(pipe
, &tgsi
);
1294 variant
->key
= *key
;
1299 tgsi
.tokens
= stfp
->tgsi
.tokens
;
1301 assert(!(key
->bitmap
&& key
->drawpixels
));
1303 /* Fix texture targets and add fog for ATI_fs */
1305 const struct tgsi_token
*tokens
= st_fixup_atifs(tgsi
.tokens
, key
);
1308 tgsi
.tokens
= tokens
;
1310 fprintf(stderr
, "mesa: cannot post-process ATI_fs\n");
1313 /* Emulate features. */
1314 if (key
->clamp_color
|| key
->persample_shading
) {
1315 const struct tgsi_token
*tokens
;
1317 (key
->clamp_color
? TGSI_EMU_CLAMP_COLOR_OUTPUTS
: 0) |
1318 (key
->persample_shading
? TGSI_EMU_FORCE_PERSAMPLE_INTERP
: 0);
1320 tokens
= tgsi_emulate(tgsi
.tokens
, flags
);
1323 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1324 tgsi_free_tokens(tgsi
.tokens
);
1325 tgsi
.tokens
= tokens
;
1327 fprintf(stderr
, "mesa: cannot emulate deprecated features\n");
1332 const struct tgsi_token
*tokens
;
1334 variant
->bitmap_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
1336 tokens
= st_get_bitmap_shader(tgsi
.tokens
,
1337 st
->internal_target
,
1338 variant
->bitmap_sampler
,
1339 st
->needs_texcoord_semantic
,
1340 st
->bitmap
.tex_format
==
1341 PIPE_FORMAT_R8_UNORM
);
1344 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1345 tgsi_free_tokens(tgsi
.tokens
);
1346 tgsi
.tokens
= tokens
;
1348 fprintf(stderr
, "mesa: cannot create a shader for glBitmap\n");
1351 /* glDrawPixels (color only) */
1352 if (key
->drawpixels
) {
1353 const struct tgsi_token
*tokens
;
1354 unsigned scale_const
= 0, bias_const
= 0, texcoord_const
= 0;
1356 /* Find the first unused slot. */
1357 variant
->drawpix_sampler
= ffs(~stfp
->Base
.SamplersUsed
) - 1;
1359 if (key
->pixelMaps
) {
1360 unsigned samplers_used
= stfp
->Base
.SamplersUsed
|
1361 (1 << variant
->drawpix_sampler
);
1363 variant
->pixelmap_sampler
= ffs(~samplers_used
) - 1;
1366 if (key
->scaleAndBias
) {
1367 scale_const
= _mesa_add_state_reference(params
, scale_state
);
1368 bias_const
= _mesa_add_state_reference(params
, bias_state
);
1371 texcoord_const
= _mesa_add_state_reference(params
, texcoord_state
);
1373 tokens
= st_get_drawpix_shader(tgsi
.tokens
,
1374 st
->needs_texcoord_semantic
,
1375 key
->scaleAndBias
, scale_const
,
1376 bias_const
, key
->pixelMaps
,
1377 variant
->drawpix_sampler
,
1378 variant
->pixelmap_sampler
,
1379 texcoord_const
, st
->internal_target
);
1382 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1383 tgsi_free_tokens(tgsi
.tokens
);
1384 tgsi
.tokens
= tokens
;
1386 fprintf(stderr
, "mesa: cannot create a shader for glDrawPixels\n");
1389 if (unlikely(key
->external
.lower_nv12
|| key
->external
.lower_iyuv
||
1390 key
->external
.lower_xy_uxvx
|| key
->external
.lower_yx_xuxv
)) {
1391 const struct tgsi_token
*tokens
;
1393 /* samplers inserted would conflict, but this should be unpossible: */
1394 assert(!(key
->bitmap
|| key
->drawpixels
));
1396 tokens
= st_tgsi_lower_yuv(tgsi
.tokens
,
1397 ~stfp
->Base
.SamplersUsed
,
1398 key
->external
.lower_nv12
||
1399 key
->external
.lower_xy_uxvx
||
1400 key
->external
.lower_yx_xuxv
,
1401 key
->external
.lower_iyuv
);
1403 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1404 tgsi_free_tokens(tgsi
.tokens
);
1405 tgsi
.tokens
= tokens
;
1407 fprintf(stderr
, "mesa: cannot create a shader for samplerExternalOES\n");
1411 if (key
->lower_depth_clamp
) {
1412 unsigned depth_range_const
= _mesa_add_state_reference(params
, depth_range_state
);
1414 const struct tgsi_token
*tokens
;
1415 tokens
= st_tgsi_lower_depth_clamp_fs(tgsi
.tokens
, depth_range_const
);
1416 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1417 tgsi_free_tokens(tgsi
.tokens
);
1418 tgsi
.tokens
= tokens
;
1421 if (ST_DEBUG
& DEBUG_TGSI
) {
1422 tgsi_dump(tgsi
.tokens
, 0);
1426 /* fill in variant */
1427 variant
->driver_shader
= pipe
->create_fs_state(pipe
, &tgsi
);
1428 variant
->key
= *key
;
1430 if (tgsi
.tokens
!= stfp
->tgsi
.tokens
)
1431 tgsi_free_tokens(tgsi
.tokens
);
1436 * Translate fragment program if needed.
1438 struct st_fp_variant
*
1439 st_get_fp_variant(struct st_context
*st
,
1440 struct st_fragment_program
*stfp
,
1441 const struct st_fp_variant_key
*key
)
1443 struct st_fp_variant
*fpv
;
1445 /* Search for existing variant */
1446 for (fpv
= stfp
->variants
; fpv
; fpv
= fpv
->next
) {
1447 if (memcmp(&fpv
->key
, key
, sizeof(*key
)) == 0) {
1454 fpv
= st_create_fp_variant(st
, stfp
, key
);
1456 if (key
->bitmap
|| key
->drawpixels
) {
1457 /* Regular variants should always come before the
1458 * bitmap & drawpixels variants, (unless there
1459 * are no regular variants) so that
1460 * st_update_fp can take a fast path when
1461 * shader_has_one_variant is set.
1463 if (!stfp
->variants
) {
1464 stfp
->variants
= fpv
;
1466 /* insert into list after the first one */
1467 fpv
->next
= stfp
->variants
->next
;
1468 stfp
->variants
->next
= fpv
;
1471 /* insert into list */
1472 fpv
->next
= stfp
->variants
;
1473 stfp
->variants
= fpv
;
1482 * Translate a program. This is common code for geometry and tessellation
1486 st_translate_common_program(struct st_context
*st
,
1487 struct st_common_program
*stcp
)
1489 struct gl_program
*prog
= &stcp
->Base
;
1490 enum pipe_shader_type stage
=
1491 pipe_shader_type_from_mesa(stcp
->Base
.info
.stage
);
1492 struct ureg_program
*ureg
= ureg_create_with_screen(stage
, st
->pipe
->screen
);
1498 case PIPE_SHADER_TESS_CTRL
:
1499 ureg_property(ureg
, TGSI_PROPERTY_TCS_VERTICES_OUT
,
1500 stcp
->Base
.info
.tess
.tcs_vertices_out
);
1503 case PIPE_SHADER_TESS_EVAL
:
1504 if (stcp
->Base
.info
.tess
.primitive_mode
== GL_ISOLINES
)
1505 ureg_property(ureg
, TGSI_PROPERTY_TES_PRIM_MODE
, GL_LINES
);
1507 ureg_property(ureg
, TGSI_PROPERTY_TES_PRIM_MODE
,
1508 stcp
->Base
.info
.tess
.primitive_mode
);
1510 STATIC_ASSERT((TESS_SPACING_EQUAL
+ 1) % 3 == PIPE_TESS_SPACING_EQUAL
);
1511 STATIC_ASSERT((TESS_SPACING_FRACTIONAL_ODD
+ 1) % 3 ==
1512 PIPE_TESS_SPACING_FRACTIONAL_ODD
);
1513 STATIC_ASSERT((TESS_SPACING_FRACTIONAL_EVEN
+ 1) % 3 ==
1514 PIPE_TESS_SPACING_FRACTIONAL_EVEN
);
1516 ureg_property(ureg
, TGSI_PROPERTY_TES_SPACING
,
1517 (stcp
->Base
.info
.tess
.spacing
+ 1) % 3);
1519 ureg_property(ureg
, TGSI_PROPERTY_TES_VERTEX_ORDER_CW
,
1520 !stcp
->Base
.info
.tess
.ccw
);
1521 ureg_property(ureg
, TGSI_PROPERTY_TES_POINT_MODE
,
1522 stcp
->Base
.info
.tess
.point_mode
);
1525 case PIPE_SHADER_GEOMETRY
:
1526 ureg_property(ureg
, TGSI_PROPERTY_GS_INPUT_PRIM
,
1527 stcp
->Base
.info
.gs
.input_primitive
);
1528 ureg_property(ureg
, TGSI_PROPERTY_GS_OUTPUT_PRIM
,
1529 stcp
->Base
.info
.gs
.output_primitive
);
1530 ureg_property(ureg
, TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES
,
1531 stcp
->Base
.info
.gs
.vertices_out
);
1532 ureg_property(ureg
, TGSI_PROPERTY_GS_INVOCATIONS
,
1533 stcp
->Base
.info
.gs
.invocations
);
1540 ubyte inputSlotToAttr
[VARYING_SLOT_TESS_MAX
];
1541 ubyte inputMapping
[VARYING_SLOT_TESS_MAX
];
1542 ubyte outputMapping
[VARYING_SLOT_TESS_MAX
];
1545 ubyte input_semantic_name
[PIPE_MAX_SHADER_INPUTS
];
1546 ubyte input_semantic_index
[PIPE_MAX_SHADER_INPUTS
];
1547 uint num_inputs
= 0;
1549 ubyte output_semantic_name
[PIPE_MAX_SHADER_OUTPUTS
];
1550 ubyte output_semantic_index
[PIPE_MAX_SHADER_OUTPUTS
];
1551 uint num_outputs
= 0;
1555 memset(inputSlotToAttr
, 0, sizeof(inputSlotToAttr
));
1556 memset(inputMapping
, 0, sizeof(inputMapping
));
1557 memset(outputMapping
, 0, sizeof(outputMapping
));
1558 memset(&stcp
->tgsi
, 0, sizeof(stcp
->tgsi
));
1560 if (prog
->info
.clip_distance_array_size
)
1561 ureg_property(ureg
, TGSI_PROPERTY_NUM_CLIPDIST_ENABLED
,
1562 prog
->info
.clip_distance_array_size
);
1563 if (prog
->info
.cull_distance_array_size
)
1564 ureg_property(ureg
, TGSI_PROPERTY_NUM_CULLDIST_ENABLED
,
1565 prog
->info
.cull_distance_array_size
);
1568 * Convert Mesa program inputs to TGSI input register semantics.
1570 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
1571 if ((prog
->info
.inputs_read
& BITFIELD64_BIT(attr
)) == 0)
1574 unsigned slot
= num_inputs
++;
1576 inputMapping
[attr
] = slot
;
1577 inputSlotToAttr
[slot
] = attr
;
1579 unsigned semantic_name
, semantic_index
;
1580 tgsi_get_gl_varying_semantic(attr
, st
->needs_texcoord_semantic
,
1581 &semantic_name
, &semantic_index
);
1582 input_semantic_name
[slot
] = semantic_name
;
1583 input_semantic_index
[slot
] = semantic_index
;
1586 /* Also add patch inputs. */
1587 for (attr
= 0; attr
< 32; attr
++) {
1588 if (prog
->info
.patch_inputs_read
& (1u << attr
)) {
1589 GLuint slot
= num_inputs
++;
1590 GLuint patch_attr
= VARYING_SLOT_PATCH0
+ attr
;
1592 inputMapping
[patch_attr
] = slot
;
1593 inputSlotToAttr
[slot
] = patch_attr
;
1594 input_semantic_name
[slot
] = TGSI_SEMANTIC_PATCH
;
1595 input_semantic_index
[slot
] = attr
;
1599 /* initialize output semantics to defaults */
1600 for (i
= 0; i
< PIPE_MAX_SHADER_OUTPUTS
; i
++) {
1601 output_semantic_name
[i
] = TGSI_SEMANTIC_GENERIC
;
1602 output_semantic_index
[i
] = 0;
1606 * Determine number of outputs, the (default) output register
1607 * mapping and the semantic information for each output.
1609 for (attr
= 0; attr
< VARYING_SLOT_MAX
; attr
++) {
1610 if (prog
->info
.outputs_written
& BITFIELD64_BIT(attr
)) {
1611 GLuint slot
= num_outputs
++;
1613 outputMapping
[attr
] = slot
;
1615 unsigned semantic_name
, semantic_index
;
1616 tgsi_get_gl_varying_semantic(attr
, st
->needs_texcoord_semantic
,
1617 &semantic_name
, &semantic_index
);
1618 output_semantic_name
[slot
] = semantic_name
;
1619 output_semantic_index
[slot
] = semantic_index
;
1623 /* Also add patch outputs. */
1624 for (attr
= 0; attr
< 32; attr
++) {
1625 if (prog
->info
.patch_outputs_written
& (1u << attr
)) {
1626 GLuint slot
= num_outputs
++;
1627 GLuint patch_attr
= VARYING_SLOT_PATCH0
+ attr
;
1629 outputMapping
[patch_attr
] = slot
;
1630 output_semantic_name
[slot
] = TGSI_SEMANTIC_PATCH
;
1631 output_semantic_index
[slot
] = attr
;
1635 st_translate_program(st
->ctx
,
1644 input_semantic_name
,
1645 input_semantic_index
,
1650 output_semantic_name
,
1651 output_semantic_index
);
1653 stcp
->tgsi
.tokens
= ureg_get_tokens(ureg
, &stcp
->num_tgsi_tokens
);
1657 st_translate_stream_output_info(prog
);
1659 st_store_ir_in_disk_cache(st
, prog
, false);
1661 if ((ST_DEBUG
& DEBUG_TGSI
) && (ST_DEBUG
& DEBUG_MESA
)) {
1662 _mesa_print_program(prog
);
1666 if (ST_DEBUG
& DEBUG_TGSI
) {
1667 tgsi_dump(stcp
->tgsi
.tokens
, 0);
1671 free_glsl_to_tgsi_visitor(stcp
->glsl_to_tgsi
);
1672 stcp
->glsl_to_tgsi
= NULL
;
1678 * Get/create a basic program variant.
1680 struct st_basic_variant
*
1681 st_get_basic_variant(struct st_context
*st
,
1682 struct st_common_program
*prog
,
1683 const struct st_basic_variant_key
*key
)
1685 struct pipe_context
*pipe
= st
->pipe
;
1686 struct st_basic_variant
*v
;
1687 struct pipe_shader_state tgsi
= {0};
1689 /* Search for existing variant */
1690 for (v
= prog
->variants
; v
; v
= v
->next
) {
1691 if (memcmp(&v
->key
, key
, sizeof(*key
)) == 0) {
1698 v
= CALLOC_STRUCT(st_basic_variant
);
1701 if (prog
->tgsi
.type
== PIPE_SHADER_IR_NIR
) {
1702 tgsi
.type
= PIPE_SHADER_IR_NIR
;
1703 tgsi
.ir
.nir
= nir_shader_clone(NULL
, prog
->tgsi
.ir
.nir
);
1705 if (key
->clamp_color
)
1706 NIR_PASS_V(tgsi
.ir
.nir
, nir_lower_clamp_color_outputs
);
1708 tgsi
.stream_output
= prog
->tgsi
.stream_output
;
1710 st_finalize_nir(st
, &prog
->Base
, prog
->shader_program
,
1713 if (key
->lower_depth_clamp
) {
1714 struct gl_program_parameter_list
*params
= prog
->Base
.Parameters
;
1716 unsigned depth_range_const
=
1717 _mesa_add_state_reference(params
, depth_range_state
);
1719 const struct tgsi_token
*tokens
;
1721 st_tgsi_lower_depth_clamp(prog
->tgsi
.tokens
,
1723 key
->clip_negative_one_to_one
);
1725 if (tokens
!= prog
->tgsi
.tokens
)
1726 tgsi_free_tokens(prog
->tgsi
.tokens
);
1728 prog
->tgsi
.tokens
= tokens
;
1729 prog
->num_tgsi_tokens
= tgsi_num_tokens(tokens
);
1733 /* fill in new variant */
1734 switch (prog
->Base
.info
.stage
) {
1735 case MESA_SHADER_TESS_CTRL
:
1736 v
->driver_shader
= pipe
->create_tcs_state(pipe
, &tgsi
);
1738 case MESA_SHADER_TESS_EVAL
:
1739 v
->driver_shader
= pipe
->create_tes_state(pipe
, &tgsi
);
1741 case MESA_SHADER_GEOMETRY
:
1742 v
->driver_shader
= pipe
->create_gs_state(pipe
, &tgsi
);
1744 case MESA_SHADER_COMPUTE
: {
1745 struct pipe_compute_state cs
= {0};
1746 cs
.ir_type
= tgsi
.type
;
1747 cs
.req_local_mem
= prog
->Base
.info
.cs
.shared_size
;
1749 if (tgsi
.type
== PIPE_SHADER_IR_NIR
)
1750 cs
.prog
= tgsi
.ir
.nir
;
1752 cs
.prog
= tgsi
.tokens
;
1754 v
->driver_shader
= pipe
->create_compute_state(pipe
, &cs
);
1758 assert(!"unhandled shader type");
1765 /* insert into list */
1766 v
->next
= prog
->variants
;
1776 * Vert/Geom/Frag programs have per-context variants. Free all the
1777 * variants attached to the given program which match the given context.
1780 destroy_program_variants(struct st_context
*st
, struct gl_program
*target
)
1782 if (!target
|| target
== &_mesa_DummyProgram
)
1785 switch (target
->Target
) {
1786 case GL_VERTEX_PROGRAM_ARB
:
1788 struct st_vertex_program
*stvp
= (struct st_vertex_program
*) target
;
1789 struct st_vp_variant
*vpv
, **prevPtr
= &stvp
->variants
;
1791 for (vpv
= stvp
->variants
; vpv
; ) {
1792 struct st_vp_variant
*next
= vpv
->next
;
1793 if (vpv
->key
.st
== st
) {
1794 /* unlink from list */
1796 /* destroy this variant */
1797 delete_vp_variant(st
, vpv
);
1800 prevPtr
= &vpv
->next
;
1806 case GL_FRAGMENT_PROGRAM_ARB
:
1808 struct st_fragment_program
*stfp
=
1809 (struct st_fragment_program
*) target
;
1810 struct st_fp_variant
*fpv
, **prevPtr
= &stfp
->variants
;
1812 for (fpv
= stfp
->variants
; fpv
; ) {
1813 struct st_fp_variant
*next
= fpv
->next
;
1814 if (fpv
->key
.st
== st
) {
1815 /* unlink from list */
1817 /* destroy this variant */
1818 delete_fp_variant(st
, fpv
);
1821 prevPtr
= &fpv
->next
;
1827 case GL_GEOMETRY_PROGRAM_NV
:
1828 case GL_TESS_CONTROL_PROGRAM_NV
:
1829 case GL_TESS_EVALUATION_PROGRAM_NV
:
1830 case GL_COMPUTE_PROGRAM_NV
:
1832 struct st_common_program
*p
= st_common_program(target
);
1833 struct st_basic_variant
*v
, **prevPtr
= &p
->variants
;
1835 for (v
= p
->variants
; v
; ) {
1836 struct st_basic_variant
*next
= v
->next
;
1837 if (v
->key
.st
== st
) {
1838 /* unlink from list */
1840 /* destroy this variant */
1841 delete_basic_variant(st
, v
, target
->Target
);
1851 _mesa_problem(NULL
, "Unexpected program target 0x%x in "
1852 "destroy_program_variants_cb()", target
->Target
);
1858 * Callback for _mesa_HashWalk. Free all the shader's program variants
1859 * which match the given context.
1862 destroy_shader_program_variants_cb(GLuint key
, void *data
, void *userData
)
1864 struct st_context
*st
= (struct st_context
*) userData
;
1865 struct gl_shader
*shader
= (struct gl_shader
*) data
;
1867 switch (shader
->Type
) {
1868 case GL_SHADER_PROGRAM_MESA
:
1870 struct gl_shader_program
*shProg
= (struct gl_shader_program
*) data
;
1873 for (i
= 0; i
< ARRAY_SIZE(shProg
->_LinkedShaders
); i
++) {
1874 if (shProg
->_LinkedShaders
[i
])
1875 destroy_program_variants(st
, shProg
->_LinkedShaders
[i
]->Program
);
1879 case GL_VERTEX_SHADER
:
1880 case GL_FRAGMENT_SHADER
:
1881 case GL_GEOMETRY_SHADER
:
1882 case GL_TESS_CONTROL_SHADER
:
1883 case GL_TESS_EVALUATION_SHADER
:
1884 case GL_COMPUTE_SHADER
:
1893 * Callback for _mesa_HashWalk. Free all the program variants which match
1894 * the given context.
1897 destroy_program_variants_cb(GLuint key
, void *data
, void *userData
)
1899 struct st_context
*st
= (struct st_context
*) userData
;
1900 struct gl_program
*program
= (struct gl_program
*) data
;
1901 destroy_program_variants(st
, program
);
1906 * Walk over all shaders and programs to delete any variants which
1907 * belong to the given context.
1908 * This is called during context tear-down.
1911 st_destroy_program_variants(struct st_context
*st
)
1913 /* If shaders can be shared with other contexts, the last context will
1914 * call DeleteProgram on all shaders, releasing everything.
1916 if (st
->has_shareable_shaders
)
1919 /* ARB vert/frag program */
1920 _mesa_HashWalk(st
->ctx
->Shared
->Programs
,
1921 destroy_program_variants_cb
, st
);
1923 /* GLSL vert/frag/geom shaders */
1924 _mesa_HashWalk(st
->ctx
->Shared
->ShaderObjects
,
1925 destroy_shader_program_variants_cb
, st
);
1930 * For debugging, print/dump the current vertex program.
1933 st_print_current_vertex_program(void)
1935 GET_CURRENT_CONTEXT(ctx
);
1937 if (ctx
->VertexProgram
._Current
) {
1938 struct st_vertex_program
*stvp
=
1939 (struct st_vertex_program
*) ctx
->VertexProgram
._Current
;
1940 struct st_vp_variant
*stv
;
1942 debug_printf("Vertex program %u\n", stvp
->Base
.Id
);
1944 for (stv
= stvp
->variants
; stv
; stv
= stv
->next
) {
1945 debug_printf("variant %p\n", stv
);
1946 tgsi_dump(stv
->tgsi
.tokens
, 0);
1953 * Compile one shader variant.
1956 st_precompile_shader_variant(struct st_context
*st
,
1957 struct gl_program
*prog
)
1959 switch (prog
->Target
) {
1960 case GL_VERTEX_PROGRAM_ARB
: {
1961 struct st_vertex_program
*p
= (struct st_vertex_program
*)prog
;
1962 struct st_vp_variant_key key
;
1964 memset(&key
, 0, sizeof(key
));
1966 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
1967 st_get_vp_variant(st
, p
, &key
);
1971 case GL_FRAGMENT_PROGRAM_ARB
: {
1972 struct st_fragment_program
*p
= (struct st_fragment_program
*)prog
;
1973 struct st_fp_variant_key key
;
1975 memset(&key
, 0, sizeof(key
));
1977 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
1978 st_get_fp_variant(st
, p
, &key
);
1982 case GL_TESS_CONTROL_PROGRAM_NV
:
1983 case GL_TESS_EVALUATION_PROGRAM_NV
:
1984 case GL_GEOMETRY_PROGRAM_NV
:
1985 case GL_COMPUTE_PROGRAM_NV
: {
1986 struct st_common_program
*p
= st_common_program(prog
);
1987 struct st_basic_variant_key key
;
1989 memset(&key
, 0, sizeof(key
));
1991 key
.st
= st
->has_shareable_shaders
? NULL
: st
;
1992 st_get_basic_variant(st
, p
, &key
);