2 * Copyright (c) 2014 Scott Mansell
3 * Copyright © 2014 Broadcom
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26 #include "util/format/u_format.h"
27 #include "util/crc32.h"
28 #include "util/u_helpers.h"
29 #include "util/u_math.h"
30 #include "util/u_memory.h"
31 #include "util/ralloc.h"
32 #include "util/hash_table.h"
33 #include "tgsi/tgsi_dump.h"
34 #include "tgsi/tgsi_parse.h"
35 #include "compiler/nir/nir.h"
36 #include "compiler/nir/nir_builder.h"
37 #include "compiler/nir_types.h"
38 #include "nir/tgsi_to_nir.h"
39 #include "vc4_context.h"
44 ntq_get_src(struct vc4_compile
*c
, nir_src src
, int i
);
46 ntq_emit_cf_list(struct vc4_compile
*c
, struct exec_list
*list
);
49 type_size(const struct glsl_type
*type
, bool bindless
)
51 return glsl_count_attribute_slots(type
, false);
55 resize_qreg_array(struct vc4_compile
*c
,
60 if (*size
>= decl_size
)
63 uint32_t old_size
= *size
;
64 *size
= MAX2(*size
* 2, decl_size
);
65 *regs
= reralloc(c
, *regs
, struct qreg
, *size
);
67 fprintf(stderr
, "Malloc failure\n");
71 for (uint32_t i
= old_size
; i
< *size
; i
++)
72 (*regs
)[i
] = c
->undef
;
76 ntq_emit_thrsw(struct vc4_compile
*c
)
81 /* Always thread switch after each texture operation for now.
83 * We could do better by batching a bunch of texture fetches up and
84 * then doing one thread switch and collecting all their results
87 qir_emit_nondef(c
, qir_inst(QOP_THRSW
, c
->undef
,
89 c
->last_thrsw_at_top_level
= (c
->execute
.file
== QFILE_NULL
);
93 indirect_uniform_load(struct vc4_compile
*c
, nir_intrinsic_instr
*intr
)
95 struct qreg indirect_offset
= ntq_get_src(c
, intr
->src
[0], 0);
97 /* Clamp to [0, array size). Note that MIN/MAX are signed. */
98 uint32_t range
= nir_intrinsic_range(intr
);
99 indirect_offset
= qir_MAX(c
, indirect_offset
, qir_uniform_ui(c
, 0));
100 indirect_offset
= qir_MIN_NOIMM(c
, indirect_offset
,
101 qir_uniform_ui(c
, range
- 4));
103 qir_ADD_dest(c
, qir_reg(QFILE_TEX_S_DIRECT
, 0),
105 qir_uniform(c
, QUNIFORM_UBO0_ADDR
,
106 nir_intrinsic_base(intr
)));
108 c
->num_texture_samples
++;
112 return qir_TEX_RESULT(c
);
116 vc4_ubo_load(struct vc4_compile
*c
, nir_intrinsic_instr
*intr
)
118 int buffer_index
= nir_src_as_uint(intr
->src
[0]);
119 assert(buffer_index
== 1);
120 assert(c
->stage
== QSTAGE_FRAG
);
122 struct qreg offset
= ntq_get_src(c
, intr
->src
[1], 0);
124 /* Clamp to [0, array size). Note that MIN/MAX are signed. */
125 offset
= qir_MAX(c
, offset
, qir_uniform_ui(c
, 0));
126 offset
= qir_MIN_NOIMM(c
, offset
,
127 qir_uniform_ui(c
, c
->fs_key
->ubo_1_size
- 4));
129 qir_ADD_dest(c
, qir_reg(QFILE_TEX_S_DIRECT
, 0),
131 qir_uniform(c
, QUNIFORM_UBO1_ADDR
, 0));
133 c
->num_texture_samples
++;
137 return qir_TEX_RESULT(c
);
141 vc4_nir_get_swizzled_channel(nir_builder
*b
, nir_ssa_def
**srcs
, int swiz
)
145 case PIPE_SWIZZLE_NONE
:
146 fprintf(stderr
, "warning: unknown swizzle\n");
149 return nir_imm_float(b
, 0.0);
151 return nir_imm_float(b
, 1.0);
161 ntq_init_ssa_def(struct vc4_compile
*c
, nir_ssa_def
*def
)
163 struct qreg
*qregs
= ralloc_array(c
->def_ht
, struct qreg
,
164 def
->num_components
);
165 _mesa_hash_table_insert(c
->def_ht
, def
, qregs
);
170 * This function is responsible for getting QIR results into the associated
171 * storage for a NIR instruction.
173 * If it's a NIR SSA def, then we just set the associated hash table entry to
176 * If it's a NIR reg, then we need to update the existing qreg assigned to the
177 * NIR destination with the incoming value. To do that without introducing
178 * new MOVs, we require that the incoming qreg either be a uniform, or be
179 * SSA-defined by the previous QIR instruction in the block and rewritable by
180 * this function. That lets us sneak ahead and insert the SF flag beforehand
181 * (knowing that the previous instruction doesn't depend on flags) and rewrite
182 * its destination to be the NIR reg's destination
185 ntq_store_dest(struct vc4_compile
*c
, nir_dest
*dest
, int chan
,
188 struct qinst
*last_inst
= NULL
;
189 if (!list_is_empty(&c
->cur_block
->instructions
))
190 last_inst
= (struct qinst
*)c
->cur_block
->instructions
.prev
;
192 assert(result
.file
== QFILE_UNIF
||
193 (result
.file
== QFILE_TEMP
&&
194 last_inst
&& last_inst
== c
->defs
[result
.index
]));
197 assert(chan
< dest
->ssa
.num_components
);
200 struct hash_entry
*entry
=
201 _mesa_hash_table_search(c
->def_ht
, &dest
->ssa
);
206 qregs
= ntq_init_ssa_def(c
, &dest
->ssa
);
208 qregs
[chan
] = result
;
210 nir_register
*reg
= dest
->reg
.reg
;
211 assert(dest
->reg
.base_offset
== 0);
212 assert(reg
->num_array_elems
== 0);
213 struct hash_entry
*entry
=
214 _mesa_hash_table_search(c
->def_ht
, reg
);
215 struct qreg
*qregs
= entry
->data
;
217 /* Insert a MOV if the source wasn't an SSA def in the
218 * previous instruction.
220 if (result
.file
== QFILE_UNIF
) {
221 result
= qir_MOV(c
, result
);
222 last_inst
= c
->defs
[result
.index
];
225 /* We know they're both temps, so just rewrite index. */
226 c
->defs
[last_inst
->dst
.index
] = NULL
;
227 last_inst
->dst
.index
= qregs
[chan
].index
;
229 /* If we're in control flow, then make this update of the reg
230 * conditional on the execution mask.
232 if (c
->execute
.file
!= QFILE_NULL
) {
233 last_inst
->dst
.index
= qregs
[chan
].index
;
235 /* Set the flags to the current exec mask. To insert
236 * the SF, we temporarily remove our SSA instruction.
238 list_del(&last_inst
->link
);
239 qir_SF(c
, c
->execute
);
240 list_addtail(&last_inst
->link
,
241 &c
->cur_block
->instructions
);
243 last_inst
->cond
= QPU_COND_ZS
;
244 last_inst
->cond_is_exec_mask
= true;
250 ntq_get_dest(struct vc4_compile
*c
, nir_dest
*dest
)
253 struct qreg
*qregs
= ntq_init_ssa_def(c
, &dest
->ssa
);
254 for (int i
= 0; i
< dest
->ssa
.num_components
; i
++)
258 nir_register
*reg
= dest
->reg
.reg
;
259 assert(dest
->reg
.base_offset
== 0);
260 assert(reg
->num_array_elems
== 0);
261 struct hash_entry
*entry
=
262 _mesa_hash_table_search(c
->def_ht
, reg
);
268 ntq_get_src(struct vc4_compile
*c
, nir_src src
, int i
)
270 struct hash_entry
*entry
;
272 entry
= _mesa_hash_table_search(c
->def_ht
, src
.ssa
);
273 assert(i
< src
.ssa
->num_components
);
275 nir_register
*reg
= src
.reg
.reg
;
276 entry
= _mesa_hash_table_search(c
->def_ht
, reg
);
277 assert(reg
->num_array_elems
== 0);
278 assert(src
.reg
.base_offset
== 0);
279 assert(i
< reg
->num_components
);
282 struct qreg
*qregs
= entry
->data
;
287 ntq_get_alu_src(struct vc4_compile
*c
, nir_alu_instr
*instr
,
290 assert(util_is_power_of_two_or_zero(instr
->dest
.write_mask
));
291 unsigned chan
= ffs(instr
->dest
.write_mask
) - 1;
292 struct qreg r
= ntq_get_src(c
, instr
->src
[src
].src
,
293 instr
->src
[src
].swizzle
[chan
]);
295 assert(!instr
->src
[src
].abs
);
296 assert(!instr
->src
[src
].negate
);
301 static inline struct qreg
302 qir_SAT(struct vc4_compile
*c
, struct qreg val
)
305 qir_FMIN(c
, val
, qir_uniform_f(c
, 1.0)),
306 qir_uniform_f(c
, 0.0));
310 ntq_rcp(struct vc4_compile
*c
, struct qreg x
)
312 struct qreg r
= qir_RCP(c
, x
);
314 /* Apply a Newton-Raphson step to improve the accuracy. */
315 r
= qir_FMUL(c
, r
, qir_FSUB(c
,
316 qir_uniform_f(c
, 2.0),
323 ntq_rsq(struct vc4_compile
*c
, struct qreg x
)
325 struct qreg r
= qir_RSQ(c
, x
);
327 /* Apply a Newton-Raphson step to improve the accuracy. */
328 r
= qir_FMUL(c
, r
, qir_FSUB(c
,
329 qir_uniform_f(c
, 1.5),
331 qir_uniform_f(c
, 0.5),
333 qir_FMUL(c
, r
, r
)))));
339 ntq_umul(struct vc4_compile
*c
, struct qreg src0
, struct qreg src1
)
341 struct qreg src0_hi
= qir_SHR(c
, src0
,
342 qir_uniform_ui(c
, 24));
343 struct qreg src1_hi
= qir_SHR(c
, src1
,
344 qir_uniform_ui(c
, 24));
346 struct qreg hilo
= qir_MUL24(c
, src0_hi
, src1
);
347 struct qreg lohi
= qir_MUL24(c
, src0
, src1_hi
);
348 struct qreg lolo
= qir_MUL24(c
, src0
, src1
);
350 return qir_ADD(c
, lolo
, qir_SHL(c
,
351 qir_ADD(c
, hilo
, lohi
),
352 qir_uniform_ui(c
, 24)));
356 ntq_scale_depth_texture(struct vc4_compile
*c
, struct qreg src
)
358 struct qreg depthf
= qir_ITOF(c
, qir_SHR(c
, src
,
359 qir_uniform_ui(c
, 8)));
360 return qir_FMUL(c
, depthf
, qir_uniform_f(c
, 1.0f
/0xffffff));
364 * Emits a lowered TXF_MS from an MSAA texture.
366 * The addressing math has been lowered in NIR, and now we just need to read
370 ntq_emit_txf(struct vc4_compile
*c
, nir_tex_instr
*instr
)
372 uint32_t tile_width
= 32;
373 uint32_t tile_height
= 32;
374 uint32_t tile_size
= (tile_height
* tile_width
*
375 VC4_MAX_SAMPLES
* sizeof(uint32_t));
377 unsigned unit
= instr
->texture_index
;
378 uint32_t w
= align(c
->key
->tex
[unit
].msaa_width
, tile_width
);
379 uint32_t w_tiles
= w
/ tile_width
;
380 uint32_t h
= align(c
->key
->tex
[unit
].msaa_height
, tile_height
);
381 uint32_t h_tiles
= h
/ tile_height
;
382 uint32_t size
= w_tiles
* h_tiles
* tile_size
;
385 assert(instr
->num_srcs
== 1);
386 assert(instr
->src
[0].src_type
== nir_tex_src_coord
);
387 addr
= ntq_get_src(c
, instr
->src
[0].src
, 0);
389 /* Perform the clamping required by kernel validation. */
390 addr
= qir_MAX(c
, addr
, qir_uniform_ui(c
, 0));
391 addr
= qir_MIN_NOIMM(c
, addr
, qir_uniform_ui(c
, size
- 4));
393 qir_ADD_dest(c
, qir_reg(QFILE_TEX_S_DIRECT
, 0),
394 addr
, qir_uniform(c
, QUNIFORM_TEXTURE_MSAA_ADDR
, unit
));
398 struct qreg tex
= qir_TEX_RESULT(c
);
399 c
->num_texture_samples
++;
401 enum pipe_format format
= c
->key
->tex
[unit
].format
;
402 if (util_format_is_depth_or_stencil(format
)) {
403 struct qreg scaled
= ntq_scale_depth_texture(c
, tex
);
404 for (int i
= 0; i
< 4; i
++)
405 ntq_store_dest(c
, &instr
->dest
, i
, qir_MOV(c
, scaled
));
407 for (int i
= 0; i
< 4; i
++)
408 ntq_store_dest(c
, &instr
->dest
, i
,
409 qir_UNPACK_8_F(c
, tex
, i
));
414 ntq_emit_tex(struct vc4_compile
*c
, nir_tex_instr
*instr
)
416 struct qreg s
, t
, r
, lod
, compare
;
417 bool is_txb
= false, is_txl
= false;
418 unsigned unit
= instr
->texture_index
;
420 if (instr
->op
== nir_texop_txf
) {
421 ntq_emit_txf(c
, instr
);
425 for (unsigned i
= 0; i
< instr
->num_srcs
; i
++) {
426 switch (instr
->src
[i
].src_type
) {
427 case nir_tex_src_coord
:
428 s
= ntq_get_src(c
, instr
->src
[i
].src
, 0);
429 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_1D
)
430 t
= qir_uniform_f(c
, 0.5);
432 t
= ntq_get_src(c
, instr
->src
[i
].src
, 1);
433 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
)
434 r
= ntq_get_src(c
, instr
->src
[i
].src
, 2);
436 case nir_tex_src_bias
:
437 lod
= ntq_get_src(c
, instr
->src
[i
].src
, 0);
440 case nir_tex_src_lod
:
441 lod
= ntq_get_src(c
, instr
->src
[i
].src
, 0);
444 case nir_tex_src_comparator
:
445 compare
= ntq_get_src(c
, instr
->src
[i
].src
, 0);
448 unreachable("unknown texture source");
452 if (c
->stage
!= QSTAGE_FRAG
&& !is_txl
) {
453 /* From the GLSL 1.20 spec:
455 * "If it is mip-mapped and running on the vertex shader,
456 * then the base texture is used."
459 lod
= qir_uniform_ui(c
, 0);
462 if (c
->key
->tex
[unit
].force_first_level
) {
463 lod
= qir_uniform(c
, QUNIFORM_TEXTURE_FIRST_LEVEL
, unit
);
468 struct qreg texture_u
[] = {
469 qir_uniform(c
, QUNIFORM_TEXTURE_CONFIG_P0
, unit
),
470 qir_uniform(c
, QUNIFORM_TEXTURE_CONFIG_P1
, unit
),
471 qir_uniform(c
, QUNIFORM_CONSTANT
, 0),
472 qir_uniform(c
, QUNIFORM_CONSTANT
, 0),
474 uint32_t next_texture_u
= 0;
476 /* There is no native support for GL texture rectangle coordinates, so
477 * we have to rescale from ([0, width], [0, height]) to ([0, 1], [0,
480 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_RECT
) {
482 qir_uniform(c
, QUNIFORM_TEXRECT_SCALE_X
, unit
));
484 qir_uniform(c
, QUNIFORM_TEXRECT_SCALE_Y
, unit
));
487 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
|| is_txl
) {
488 texture_u
[2] = qir_uniform(c
, QUNIFORM_TEXTURE_CONFIG_P2
,
489 unit
| (is_txl
<< 16));
493 if (instr
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
) {
494 tmu
= qir_MOV_dest(c
, qir_reg(QFILE_TEX_R
, 0), r
);
495 tmu
->src
[qir_get_tex_uniform_src(tmu
)] =
496 texture_u
[next_texture_u
++];
497 } else if (c
->key
->tex
[unit
].wrap_s
== PIPE_TEX_WRAP_CLAMP_TO_BORDER
||
498 c
->key
->tex
[unit
].wrap_s
== PIPE_TEX_WRAP_CLAMP
||
499 c
->key
->tex
[unit
].wrap_t
== PIPE_TEX_WRAP_CLAMP_TO_BORDER
||
500 c
->key
->tex
[unit
].wrap_t
== PIPE_TEX_WRAP_CLAMP
) {
501 tmu
= qir_MOV_dest(c
, qir_reg(QFILE_TEX_R
, 0),
502 qir_uniform(c
, QUNIFORM_TEXTURE_BORDER_COLOR
,
504 tmu
->src
[qir_get_tex_uniform_src(tmu
)] =
505 texture_u
[next_texture_u
++];
508 if (c
->key
->tex
[unit
].wrap_s
== PIPE_TEX_WRAP_CLAMP
) {
512 if (c
->key
->tex
[unit
].wrap_t
== PIPE_TEX_WRAP_CLAMP
) {
516 tmu
= qir_MOV_dest(c
, qir_reg(QFILE_TEX_T
, 0), t
);
517 tmu
->src
[qir_get_tex_uniform_src(tmu
)] =
518 texture_u
[next_texture_u
++];
520 if (is_txl
|| is_txb
) {
521 tmu
= qir_MOV_dest(c
, qir_reg(QFILE_TEX_B
, 0), lod
);
522 tmu
->src
[qir_get_tex_uniform_src(tmu
)] =
523 texture_u
[next_texture_u
++];
526 tmu
= qir_MOV_dest(c
, qir_reg(QFILE_TEX_S
, 0), s
);
527 tmu
->src
[qir_get_tex_uniform_src(tmu
)] = texture_u
[next_texture_u
++];
529 c
->num_texture_samples
++;
533 struct qreg tex
= qir_TEX_RESULT(c
);
535 enum pipe_format format
= c
->key
->tex
[unit
].format
;
537 struct qreg
*dest
= ntq_get_dest(c
, &instr
->dest
);
538 if (util_format_is_depth_or_stencil(format
)) {
539 struct qreg normalized
= ntq_scale_depth_texture(c
, tex
);
540 struct qreg depth_output
;
542 struct qreg u0
= qir_uniform_f(c
, 0.0f
);
543 struct qreg u1
= qir_uniform_f(c
, 1.0f
);
544 if (c
->key
->tex
[unit
].compare_mode
) {
545 /* From the GL_ARB_shadow spec:
547 * "Let Dt (D subscript t) be the depth texture
548 * value, in the range [0, 1]. Let R be the
549 * interpolated texture coordinate clamped to the
552 compare
= qir_SAT(c
, compare
);
554 switch (c
->key
->tex
[unit
].compare_func
) {
555 case PIPE_FUNC_NEVER
:
556 depth_output
= qir_uniform_f(c
, 0.0f
);
558 case PIPE_FUNC_ALWAYS
:
561 case PIPE_FUNC_EQUAL
:
562 qir_SF(c
, qir_FSUB(c
, compare
, normalized
));
563 depth_output
= qir_SEL(c
, QPU_COND_ZS
, u1
, u0
);
565 case PIPE_FUNC_NOTEQUAL
:
566 qir_SF(c
, qir_FSUB(c
, compare
, normalized
));
567 depth_output
= qir_SEL(c
, QPU_COND_ZC
, u1
, u0
);
569 case PIPE_FUNC_GREATER
:
570 qir_SF(c
, qir_FSUB(c
, compare
, normalized
));
571 depth_output
= qir_SEL(c
, QPU_COND_NC
, u1
, u0
);
573 case PIPE_FUNC_GEQUAL
:
574 qir_SF(c
, qir_FSUB(c
, normalized
, compare
));
575 depth_output
= qir_SEL(c
, QPU_COND_NS
, u1
, u0
);
578 qir_SF(c
, qir_FSUB(c
, compare
, normalized
));
579 depth_output
= qir_SEL(c
, QPU_COND_NS
, u1
, u0
);
581 case PIPE_FUNC_LEQUAL
:
582 qir_SF(c
, qir_FSUB(c
, normalized
, compare
));
583 depth_output
= qir_SEL(c
, QPU_COND_NC
, u1
, u0
);
587 depth_output
= normalized
;
590 for (int i
= 0; i
< 4; i
++)
591 dest
[i
] = depth_output
;
593 for (int i
= 0; i
< 4; i
++)
594 dest
[i
] = qir_UNPACK_8_F(c
, tex
, i
);
599 * Computes x - floor(x), which is tricky because our FTOI truncates (rounds
603 ntq_ffract(struct vc4_compile
*c
, struct qreg src
)
605 struct qreg trunc
= qir_ITOF(c
, qir_FTOI(c
, src
));
606 struct qreg diff
= qir_FSUB(c
, src
, trunc
);
609 qir_FADD_dest(c
, diff
,
610 diff
, qir_uniform_f(c
, 1.0))->cond
= QPU_COND_NS
;
612 return qir_MOV(c
, diff
);
616 * Computes floor(x), which is tricky because our FTOI truncates (rounds to
620 ntq_ffloor(struct vc4_compile
*c
, struct qreg src
)
622 struct qreg result
= qir_ITOF(c
, qir_FTOI(c
, src
));
624 /* This will be < 0 if we truncated and the truncation was of a value
625 * that was < 0 in the first place.
627 qir_SF(c
, qir_FSUB(c
, src
, result
));
629 struct qinst
*sub
= qir_FSUB_dest(c
, result
,
630 result
, qir_uniform_f(c
, 1.0));
631 sub
->cond
= QPU_COND_NS
;
633 return qir_MOV(c
, result
);
637 * Computes ceil(x), which is tricky because our FTOI truncates (rounds to
641 ntq_fceil(struct vc4_compile
*c
, struct qreg src
)
643 struct qreg result
= qir_ITOF(c
, qir_FTOI(c
, src
));
645 /* This will be < 0 if we truncated and the truncation was of a value
646 * that was > 0 in the first place.
648 qir_SF(c
, qir_FSUB(c
, result
, src
));
650 qir_FADD_dest(c
, result
,
651 result
, qir_uniform_f(c
, 1.0))->cond
= QPU_COND_NS
;
653 return qir_MOV(c
, result
);
657 ntq_shrink_sincos_input_range(struct vc4_compile
*c
, struct qreg x
)
659 /* Since we're using a Taylor approximation, we want to have a small
660 * number of coefficients and take advantage of sin/cos repeating
661 * every 2pi. We keep our x as close to 0 as we can, since the series
662 * will be less accurate as |x| increases. (Also, be careful of
663 * shifting the input x value to be tricky with sin/cos relations,
664 * because getting accurate values for x==0 is very important for SDL
667 struct qreg scaled_x
=
669 qir_uniform_f(c
, 1.0f
/ (M_PI
* 2.0f
)));
670 /* Note: FTOI truncates toward 0. */
671 struct qreg x_frac
= qir_FSUB(c
, scaled_x
,
672 qir_ITOF(c
, qir_FTOI(c
, scaled_x
)));
673 /* Map [0.5, 1] to [-0.5, 0] */
674 qir_SF(c
, qir_FSUB(c
, x_frac
, qir_uniform_f(c
, 0.5)));
675 qir_FSUB_dest(c
, x_frac
, x_frac
, qir_uniform_f(c
, 1.0))->cond
= QPU_COND_NC
;
676 /* Map [-1, -0.5] to [0, 0.5] */
677 qir_SF(c
, qir_FADD(c
, x_frac
, qir_uniform_f(c
, 0.5)));
678 qir_FADD_dest(c
, x_frac
, x_frac
, qir_uniform_f(c
, 1.0))->cond
= QPU_COND_NS
;
684 ntq_fsin(struct vc4_compile
*c
, struct qreg src
)
688 -pow(2.0 * M_PI
, 3) / (3 * 2 * 1),
689 pow(2.0 * M_PI
, 5) / (5 * 4 * 3 * 2 * 1),
690 -pow(2.0 * M_PI
, 7) / (7 * 6 * 5 * 4 * 3 * 2 * 1),
691 pow(2.0 * M_PI
, 9) / (9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1),
694 struct qreg x
= ntq_shrink_sincos_input_range(c
, src
);
695 struct qreg x2
= qir_FMUL(c
, x
, x
);
696 struct qreg sum
= qir_FMUL(c
, x
, qir_uniform_f(c
, coeff
[0]));
697 for (int i
= 1; i
< ARRAY_SIZE(coeff
); i
++) {
698 x
= qir_FMUL(c
, x
, x2
);
703 qir_uniform_f(c
, coeff
[i
])));
709 ntq_fcos(struct vc4_compile
*c
, struct qreg src
)
713 -pow(2.0 * M_PI
, 2) / (2 * 1),
714 pow(2.0 * M_PI
, 4) / (4 * 3 * 2 * 1),
715 -pow(2.0 * M_PI
, 6) / (6 * 5 * 4 * 3 * 2 * 1),
716 pow(2.0 * M_PI
, 8) / (8 * 7 * 6 * 5 * 4 * 3 * 2 * 1),
717 -pow(2.0 * M_PI
, 10) / (10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1),
720 struct qreg x_frac
= ntq_shrink_sincos_input_range(c
, src
);
721 struct qreg sum
= qir_uniform_f(c
, coeff
[0]);
722 struct qreg x2
= qir_FMUL(c
, x_frac
, x_frac
);
723 struct qreg x
= x2
; /* Current x^2, x^4, or x^6 */
724 for (int i
= 1; i
< ARRAY_SIZE(coeff
); i
++) {
726 x
= qir_FMUL(c
, x
, x2
);
728 sum
= qir_FADD(c
, qir_FMUL(c
,
730 qir_uniform_f(c
, coeff
[i
])),
737 ntq_fsign(struct vc4_compile
*c
, struct qreg src
)
739 struct qreg t
= qir_get_temp(c
);
742 qir_MOV_dest(c
, t
, qir_uniform_f(c
, 0.0));
743 qir_MOV_dest(c
, t
, qir_uniform_f(c
, 1.0))->cond
= QPU_COND_ZC
;
744 qir_MOV_dest(c
, t
, qir_uniform_f(c
, -1.0))->cond
= QPU_COND_NS
;
745 return qir_MOV(c
, t
);
749 emit_vertex_input(struct vc4_compile
*c
, int attr
)
751 enum pipe_format format
= c
->vs_key
->attr_formats
[attr
];
752 uint32_t attr_size
= util_format_get_blocksize(format
);
754 c
->vattr_sizes
[attr
] = align(attr_size
, 4);
755 for (int i
= 0; i
< align(attr_size
, 4) / 4; i
++) {
756 c
->inputs
[attr
* 4 + i
] =
757 qir_MOV(c
, qir_reg(QFILE_VPM
, attr
* 4 + i
));
763 emit_fragcoord_input(struct vc4_compile
*c
, int attr
)
765 c
->inputs
[attr
* 4 + 0] = qir_ITOF(c
, qir_reg(QFILE_FRAG_X
, 0));
766 c
->inputs
[attr
* 4 + 1] = qir_ITOF(c
, qir_reg(QFILE_FRAG_Y
, 0));
767 c
->inputs
[attr
* 4 + 2] =
769 qir_ITOF(c
, qir_FRAG_Z(c
)),
770 qir_uniform_f(c
, 1.0 / 0xffffff));
771 c
->inputs
[attr
* 4 + 3] = qir_RCP(c
, qir_FRAG_W(c
));
775 emit_fragment_varying(struct vc4_compile
*c
, gl_varying_slot slot
,
778 uint32_t i
= c
->num_input_slots
++;
784 if (c
->num_input_slots
>= c
->input_slots_array_size
) {
785 c
->input_slots_array_size
=
786 MAX2(4, c
->input_slots_array_size
* 2);
788 c
->input_slots
= reralloc(c
, c
->input_slots
,
789 struct vc4_varying_slot
,
790 c
->input_slots_array_size
);
793 c
->input_slots
[i
].slot
= slot
;
794 c
->input_slots
[i
].swizzle
= swizzle
;
796 return qir_VARY_ADD_C(c
, qir_FMUL(c
, vary
, qir_FRAG_W(c
)));
800 emit_fragment_input(struct vc4_compile
*c
, int attr
, gl_varying_slot slot
)
802 for (int i
= 0; i
< 4; i
++) {
803 c
->inputs
[attr
* 4 + i
] =
804 emit_fragment_varying(c
, slot
, i
);
810 add_output(struct vc4_compile
*c
,
811 uint32_t decl_offset
,
815 uint32_t old_array_size
= c
->outputs_array_size
;
816 resize_qreg_array(c
, &c
->outputs
, &c
->outputs_array_size
,
819 if (old_array_size
!= c
->outputs_array_size
) {
820 c
->output_slots
= reralloc(c
,
822 struct vc4_varying_slot
,
823 c
->outputs_array_size
);
826 c
->output_slots
[decl_offset
].slot
= slot
;
827 c
->output_slots
[decl_offset
].swizzle
= swizzle
;
831 ntq_src_is_only_ssa_def_user(nir_src
*src
)
836 if (!list_is_empty(&src
->ssa
->if_uses
))
839 return (src
->ssa
->uses
.next
== &src
->use_link
&&
840 src
->ssa
->uses
.next
->next
== &src
->ssa
->uses
);
844 * In general, emits a nir_pack_unorm_4x8 as a series of MOVs with the pack
847 * However, as an optimization, it tries to find the instructions generating
848 * the sources to be packed and just emit the pack flag there, if possible.
851 ntq_emit_pack_unorm_4x8(struct vc4_compile
*c
, nir_alu_instr
*instr
)
853 struct qreg result
= qir_get_temp(c
);
854 struct nir_alu_instr
*vec4
= NULL
;
856 /* If packing from a vec4 op (as expected), identify it so that we can
857 * peek back at what generated its sources.
859 if (instr
->src
[0].src
.is_ssa
&&
860 instr
->src
[0].src
.ssa
->parent_instr
->type
== nir_instr_type_alu
&&
861 nir_instr_as_alu(instr
->src
[0].src
.ssa
->parent_instr
)->op
==
863 vec4
= nir_instr_as_alu(instr
->src
[0].src
.ssa
->parent_instr
);
866 /* If the pack is replicating the same channel 4 times, use the 8888
867 * pack flag. This is common for blending using the alpha
870 if (instr
->src
[0].swizzle
[0] == instr
->src
[0].swizzle
[1] &&
871 instr
->src
[0].swizzle
[0] == instr
->src
[0].swizzle
[2] &&
872 instr
->src
[0].swizzle
[0] == instr
->src
[0].swizzle
[3]) {
873 struct qreg rep
= ntq_get_src(c
,
875 instr
->src
[0].swizzle
[0]);
876 ntq_store_dest(c
, &instr
->dest
.dest
, 0, qir_PACK_8888_F(c
, rep
));
880 for (int i
= 0; i
< 4; i
++) {
881 int swiz
= instr
->src
[0].swizzle
[i
];
884 src
= ntq_get_src(c
, vec4
->src
[swiz
].src
,
885 vec4
->src
[swiz
].swizzle
[0]);
887 src
= ntq_get_src(c
, instr
->src
[0].src
, swiz
);
891 ntq_src_is_only_ssa_def_user(&vec4
->src
[swiz
].src
) &&
892 src
.file
== QFILE_TEMP
&&
893 c
->defs
[src
.index
] &&
894 qir_is_mul(c
->defs
[src
.index
]) &&
895 !c
->defs
[src
.index
]->dst
.pack
) {
896 struct qinst
*rewrite
= c
->defs
[src
.index
];
897 c
->defs
[src
.index
] = NULL
;
898 rewrite
->dst
= result
;
899 rewrite
->dst
.pack
= QPU_PACK_MUL_8A
+ i
;
903 qir_PACK_8_F(c
, result
, src
, i
);
906 ntq_store_dest(c
, &instr
->dest
.dest
, 0, qir_MOV(c
, result
));
909 /** Handles sign-extended bitfield extracts for 16 bits. */
911 ntq_emit_ibfe(struct vc4_compile
*c
, struct qreg base
, struct qreg offset
,
914 assert(bits
.file
== QFILE_UNIF
&&
915 c
->uniform_contents
[bits
.index
] == QUNIFORM_CONSTANT
&&
916 c
->uniform_data
[bits
.index
] == 16);
918 assert(offset
.file
== QFILE_UNIF
&&
919 c
->uniform_contents
[offset
.index
] == QUNIFORM_CONSTANT
);
920 int offset_bit
= c
->uniform_data
[offset
.index
];
921 assert(offset_bit
% 16 == 0);
923 return qir_UNPACK_16_I(c
, base
, offset_bit
/ 16);
926 /** Handles unsigned bitfield extracts for 8 bits. */
928 ntq_emit_ubfe(struct vc4_compile
*c
, struct qreg base
, struct qreg offset
,
931 assert(bits
.file
== QFILE_UNIF
&&
932 c
->uniform_contents
[bits
.index
] == QUNIFORM_CONSTANT
&&
933 c
->uniform_data
[bits
.index
] == 8);
935 assert(offset
.file
== QFILE_UNIF
&&
936 c
->uniform_contents
[offset
.index
] == QUNIFORM_CONSTANT
);
937 int offset_bit
= c
->uniform_data
[offset
.index
];
938 assert(offset_bit
% 8 == 0);
940 return qir_UNPACK_8_I(c
, base
, offset_bit
/ 8);
944 * If compare_instr is a valid comparison instruction, emits the
945 * compare_instr's comparison and returns the sel_instr's return value based
946 * on the compare_instr's result.
949 ntq_emit_comparison(struct vc4_compile
*c
, struct qreg
*dest
,
950 nir_alu_instr
*compare_instr
,
951 nir_alu_instr
*sel_instr
)
955 switch (compare_instr
->op
) {
981 struct qreg src0
= ntq_get_alu_src(c
, compare_instr
, 0);
982 struct qreg src1
= ntq_get_alu_src(c
, compare_instr
, 1);
984 unsigned unsized_type
=
985 nir_alu_type_get_base_type(nir_op_infos
[compare_instr
->op
].input_types
[0]);
986 if (unsized_type
== nir_type_float
)
987 qir_SF(c
, qir_FSUB(c
, src0
, src1
));
989 qir_SF(c
, qir_SUB(c
, src0
, src1
));
991 switch (sel_instr
->op
) {
996 *dest
= qir_SEL(c
, cond
,
997 qir_uniform_f(c
, 1.0), qir_uniform_f(c
, 0.0));
1000 case nir_op_b32csel
:
1001 *dest
= qir_SEL(c
, cond
,
1002 ntq_get_alu_src(c
, sel_instr
, 1),
1003 ntq_get_alu_src(c
, sel_instr
, 2));
1007 *dest
= qir_SEL(c
, cond
,
1008 qir_uniform_ui(c
, ~0), qir_uniform_ui(c
, 0));
1012 /* Make the temporary for nir_store_dest(). */
1013 *dest
= qir_MOV(c
, *dest
);
1019 * Attempts to fold a comparison generating a boolean result into the
1020 * condition code for selecting between two values, instead of comparing the
1021 * boolean result against 0 to generate the condition code.
1023 static struct qreg
ntq_emit_bcsel(struct vc4_compile
*c
, nir_alu_instr
*instr
,
1026 if (!instr
->src
[0].src
.is_ssa
)
1028 if (instr
->src
[0].src
.ssa
->parent_instr
->type
!= nir_instr_type_alu
)
1030 nir_alu_instr
*compare
=
1031 nir_instr_as_alu(instr
->src
[0].src
.ssa
->parent_instr
);
1036 if (ntq_emit_comparison(c
, &dest
, compare
, instr
))
1041 return qir_MOV(c
, qir_SEL(c
, QPU_COND_NS
, src
[1], src
[2]));
1045 ntq_fddx(struct vc4_compile
*c
, struct qreg src
)
1047 /* Make sure that we have a bare temp to use for MUL rotation, so it
1048 * can be allocated to an accumulator.
1050 if (src
.pack
|| src
.file
!= QFILE_TEMP
)
1051 src
= qir_MOV(c
, src
);
1053 struct qreg from_left
= qir_ROT_MUL(c
, src
, 1);
1054 struct qreg from_right
= qir_ROT_MUL(c
, src
, 15);
1056 /* Distinguish left/right pixels of the quad. */
1057 qir_SF(c
, qir_AND(c
, qir_reg(QFILE_QPU_ELEMENT
, 0),
1058 qir_uniform_ui(c
, 1)));
1060 return qir_MOV(c
, qir_SEL(c
, QPU_COND_ZS
,
1061 qir_FSUB(c
, from_right
, src
),
1062 qir_FSUB(c
, src
, from_left
)));
1066 ntq_fddy(struct vc4_compile
*c
, struct qreg src
)
1068 if (src
.pack
|| src
.file
!= QFILE_TEMP
)
1069 src
= qir_MOV(c
, src
);
1071 struct qreg from_bottom
= qir_ROT_MUL(c
, src
, 2);
1072 struct qreg from_top
= qir_ROT_MUL(c
, src
, 14);
1074 /* Distinguish top/bottom pixels of the quad. */
1075 qir_SF(c
, qir_AND(c
,
1076 qir_reg(QFILE_QPU_ELEMENT
, 0),
1077 qir_uniform_ui(c
, 2)));
1079 return qir_MOV(c
, qir_SEL(c
, QPU_COND_ZS
,
1080 qir_FSUB(c
, from_top
, src
),
1081 qir_FSUB(c
, src
, from_bottom
)));
1085 ntq_emit_alu(struct vc4_compile
*c
, nir_alu_instr
*instr
)
1087 /* This should always be lowered to ALU operations for VC4. */
1088 assert(!instr
->dest
.saturate
);
1090 /* Vectors are special in that they have non-scalarized writemasks,
1091 * and just take the first swizzle channel for each argument in order
1092 * into each writemask channel.
1094 if (instr
->op
== nir_op_vec2
||
1095 instr
->op
== nir_op_vec3
||
1096 instr
->op
== nir_op_vec4
) {
1097 struct qreg srcs
[4];
1098 for (int i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++)
1099 srcs
[i
] = ntq_get_src(c
, instr
->src
[i
].src
,
1100 instr
->src
[i
].swizzle
[0]);
1101 for (int i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++)
1102 ntq_store_dest(c
, &instr
->dest
.dest
, i
,
1103 qir_MOV(c
, srcs
[i
]));
1107 if (instr
->op
== nir_op_pack_unorm_4x8
) {
1108 ntq_emit_pack_unorm_4x8(c
, instr
);
1112 if (instr
->op
== nir_op_unpack_unorm_4x8
) {
1113 struct qreg src
= ntq_get_src(c
, instr
->src
[0].src
,
1114 instr
->src
[0].swizzle
[0]);
1115 for (int i
= 0; i
< 4; i
++) {
1116 if (instr
->dest
.write_mask
& (1 << i
))
1117 ntq_store_dest(c
, &instr
->dest
.dest
, i
,
1118 qir_UNPACK_8_F(c
, src
, i
));
1123 /* General case: We can just grab the one used channel per src. */
1124 struct qreg src
[nir_op_infos
[instr
->op
].num_inputs
];
1125 for (int i
= 0; i
< nir_op_infos
[instr
->op
].num_inputs
; i
++) {
1126 src
[i
] = ntq_get_alu_src(c
, instr
, i
);
1131 switch (instr
->op
) {
1133 result
= qir_MOV(c
, src
[0]);
1136 result
= qir_FMUL(c
, src
[0], src
[1]);
1139 result
= qir_FADD(c
, src
[0], src
[1]);
1142 result
= qir_FSUB(c
, src
[0], src
[1]);
1145 result
= qir_FMIN(c
, src
[0], src
[1]);
1148 result
= qir_FMAX(c
, src
[0], src
[1]);
1153 result
= qir_FTOI(c
, src
[0]);
1157 result
= qir_ITOF(c
, src
[0]);
1160 result
= qir_AND(c
, src
[0], qir_uniform_f(c
, 1.0));
1163 result
= qir_AND(c
, src
[0], qir_uniform_ui(c
, 1));
1168 result
= qir_MOV(c
, qir_SEL(c
, QPU_COND_ZC
,
1169 qir_uniform_ui(c
, ~0),
1170 qir_uniform_ui(c
, 0)));
1174 result
= qir_ADD(c
, src
[0], src
[1]);
1177 result
= qir_SHR(c
, src
[0], src
[1]);
1180 result
= qir_SUB(c
, src
[0], src
[1]);
1183 result
= qir_ASR(c
, src
[0], src
[1]);
1186 result
= qir_SHL(c
, src
[0], src
[1]);
1189 result
= qir_MIN(c
, src
[0], src
[1]);
1192 result
= qir_MAX(c
, src
[0], src
[1]);
1195 result
= qir_AND(c
, src
[0], src
[1]);
1198 result
= qir_OR(c
, src
[0], src
[1]);
1201 result
= qir_XOR(c
, src
[0], src
[1]);
1204 result
= qir_NOT(c
, src
[0]);
1208 result
= ntq_umul(c
, src
[0], src
[1]);
1224 if (!ntq_emit_comparison(c
, &result
, instr
, instr
)) {
1225 fprintf(stderr
, "Bad comparison instruction\n");
1229 case nir_op_b32csel
:
1230 result
= ntq_emit_bcsel(c
, instr
, src
);
1234 result
= qir_MOV(c
, qir_SEL(c
, QPU_COND_ZC
, src
[1], src
[2]));
1238 result
= ntq_rcp(c
, src
[0]);
1241 result
= ntq_rsq(c
, src
[0]);
1244 result
= qir_EXP2(c
, src
[0]);
1247 result
= qir_LOG2(c
, src
[0]);
1251 result
= qir_ITOF(c
, qir_FTOI(c
, src
[0]));
1254 result
= ntq_fceil(c
, src
[0]);
1257 result
= ntq_ffract(c
, src
[0]);
1260 result
= ntq_ffloor(c
, src
[0]);
1264 result
= ntq_fsin(c
, src
[0]);
1267 result
= ntq_fcos(c
, src
[0]);
1271 result
= ntq_fsign(c
, src
[0]);
1275 result
= qir_FMAXABS(c
, src
[0], src
[0]);
1278 result
= qir_MAX(c
, src
[0],
1279 qir_SUB(c
, qir_uniform_ui(c
, 0), src
[0]));
1282 case nir_op_ibitfield_extract
:
1283 result
= ntq_emit_ibfe(c
, src
[0], src
[1], src
[2]);
1286 case nir_op_ubitfield_extract
:
1287 result
= ntq_emit_ubfe(c
, src
[0], src
[1], src
[2]);
1290 case nir_op_usadd_4x8
:
1291 result
= qir_V8ADDS(c
, src
[0], src
[1]);
1294 case nir_op_ussub_4x8
:
1295 result
= qir_V8SUBS(c
, src
[0], src
[1]);
1298 case nir_op_umin_4x8
:
1299 result
= qir_V8MIN(c
, src
[0], src
[1]);
1302 case nir_op_umax_4x8
:
1303 result
= qir_V8MAX(c
, src
[0], src
[1]);
1306 case nir_op_umul_unorm_4x8
:
1307 result
= qir_V8MULD(c
, src
[0], src
[1]);
1311 case nir_op_fddx_coarse
:
1312 case nir_op_fddx_fine
:
1313 result
= ntq_fddx(c
, src
[0]);
1317 case nir_op_fddy_coarse
:
1318 case nir_op_fddy_fine
:
1319 result
= ntq_fddy(c
, src
[0]);
1323 fprintf(stderr
, "unknown NIR ALU inst: ");
1324 nir_print_instr(&instr
->instr
, stderr
);
1325 fprintf(stderr
, "\n");
1329 /* We have a scalar result, so the instruction should only have a
1330 * single channel written to.
1332 assert(util_is_power_of_two_or_zero(instr
->dest
.write_mask
));
1333 ntq_store_dest(c
, &instr
->dest
.dest
,
1334 ffs(instr
->dest
.write_mask
) - 1, result
);
1338 emit_frag_end(struct vc4_compile
*c
)
1341 if (c
->output_color_index
!= -1) {
1342 color
= c
->outputs
[c
->output_color_index
];
1344 color
= qir_uniform_ui(c
, 0);
1347 uint32_t discard_cond
= QPU_COND_ALWAYS
;
1348 if (c
->s
->info
.fs
.uses_discard
) {
1349 qir_SF(c
, c
->discard
);
1350 discard_cond
= QPU_COND_ZS
;
1353 if (c
->fs_key
->stencil_enabled
) {
1354 qir_MOV_dest(c
, qir_reg(QFILE_TLB_STENCIL_SETUP
, 0),
1355 qir_uniform(c
, QUNIFORM_STENCIL
, 0));
1356 if (c
->fs_key
->stencil_twoside
) {
1357 qir_MOV_dest(c
, qir_reg(QFILE_TLB_STENCIL_SETUP
, 0),
1358 qir_uniform(c
, QUNIFORM_STENCIL
, 1));
1360 if (c
->fs_key
->stencil_full_writemasks
) {
1361 qir_MOV_dest(c
, qir_reg(QFILE_TLB_STENCIL_SETUP
, 0),
1362 qir_uniform(c
, QUNIFORM_STENCIL
, 2));
1366 if (c
->output_sample_mask_index
!= -1) {
1367 qir_MS_MASK(c
, c
->outputs
[c
->output_sample_mask_index
]);
1370 if (c
->fs_key
->depth_enabled
) {
1371 if (c
->output_position_index
!= -1) {
1372 qir_FTOI_dest(c
, qir_reg(QFILE_TLB_Z_WRITE
, 0),
1374 c
->outputs
[c
->output_position_index
],
1375 qir_uniform_f(c
, 0xffffff)))->cond
= discard_cond
;
1377 qir_MOV_dest(c
, qir_reg(QFILE_TLB_Z_WRITE
, 0),
1378 qir_FRAG_Z(c
))->cond
= discard_cond
;
1382 if (!c
->msaa_per_sample_output
) {
1383 qir_MOV_dest(c
, qir_reg(QFILE_TLB_COLOR_WRITE
, 0),
1384 color
)->cond
= discard_cond
;
1386 for (int i
= 0; i
< VC4_MAX_SAMPLES
; i
++) {
1387 qir_MOV_dest(c
, qir_reg(QFILE_TLB_COLOR_WRITE_MS
, 0),
1388 c
->sample_colors
[i
])->cond
= discard_cond
;
1394 emit_scaled_viewport_write(struct vc4_compile
*c
, struct qreg rcp_w
)
1396 struct qreg packed
= qir_get_temp(c
);
1398 for (int i
= 0; i
< 2; i
++) {
1400 qir_uniform(c
, QUNIFORM_VIEWPORT_X_SCALE
+ i
, 0);
1402 struct qreg packed_chan
= packed
;
1403 packed_chan
.pack
= QPU_PACK_A_16A
+ i
;
1405 qir_FTOI_dest(c
, packed_chan
,
1408 c
->outputs
[c
->output_position_index
+ i
],
1413 qir_VPM_WRITE(c
, packed
);
1417 emit_zs_write(struct vc4_compile
*c
, struct qreg rcp_w
)
1419 struct qreg zscale
= qir_uniform(c
, QUNIFORM_VIEWPORT_Z_SCALE
, 0);
1420 struct qreg zoffset
= qir_uniform(c
, QUNIFORM_VIEWPORT_Z_OFFSET
, 0);
1422 qir_VPM_WRITE(c
, qir_FADD(c
, qir_FMUL(c
, qir_FMUL(c
,
1423 c
->outputs
[c
->output_position_index
+ 2],
1430 emit_rcp_wc_write(struct vc4_compile
*c
, struct qreg rcp_w
)
1432 qir_VPM_WRITE(c
, rcp_w
);
1436 emit_point_size_write(struct vc4_compile
*c
)
1438 struct qreg point_size
;
1440 if (c
->output_point_size_index
!= -1)
1441 point_size
= c
->outputs
[c
->output_point_size_index
];
1443 point_size
= qir_uniform_f(c
, 1.0);
1445 qir_VPM_WRITE(c
, point_size
);
1449 * Emits a VPM read of the stub vertex attribute set up by vc4_draw.c.
1451 * The simulator insists that there be at least one vertex attribute, so
1452 * vc4_draw.c will emit one if it wouldn't have otherwise. The simulator also
1453 * insists that all vertex attributes loaded get read by the VS/CS, so we have
1454 * to consume it here.
1457 emit_stub_vpm_read(struct vc4_compile
*c
)
1462 c
->vattr_sizes
[0] = 4;
1463 (void)qir_MOV(c
, qir_reg(QFILE_VPM
, 0));
1468 emit_vert_end(struct vc4_compile
*c
,
1469 struct vc4_varying_slot
*fs_inputs
,
1470 uint32_t num_fs_inputs
)
1472 struct qreg rcp_w
= ntq_rcp(c
, c
->outputs
[c
->output_position_index
+ 3]);
1474 emit_stub_vpm_read(c
);
1476 emit_scaled_viewport_write(c
, rcp_w
);
1477 emit_zs_write(c
, rcp_w
);
1478 emit_rcp_wc_write(c
, rcp_w
);
1479 if (c
->vs_key
->per_vertex_point_size
)
1480 emit_point_size_write(c
);
1482 for (int i
= 0; i
< num_fs_inputs
; i
++) {
1483 struct vc4_varying_slot
*input
= &fs_inputs
[i
];
1486 for (j
= 0; j
< c
->num_outputs
; j
++) {
1487 struct vc4_varying_slot
*output
=
1488 &c
->output_slots
[j
];
1490 if (input
->slot
== output
->slot
&&
1491 input
->swizzle
== output
->swizzle
) {
1492 qir_VPM_WRITE(c
, c
->outputs
[j
]);
1496 /* Emit padding if we didn't find a declared VS output for
1499 if (j
== c
->num_outputs
)
1500 qir_VPM_WRITE(c
, qir_uniform_f(c
, 0.0));
1505 emit_coord_end(struct vc4_compile
*c
)
1507 struct qreg rcp_w
= ntq_rcp(c
, c
->outputs
[c
->output_position_index
+ 3]);
1509 emit_stub_vpm_read(c
);
1511 for (int i
= 0; i
< 4; i
++)
1512 qir_VPM_WRITE(c
, c
->outputs
[c
->output_position_index
+ i
]);
1514 emit_scaled_viewport_write(c
, rcp_w
);
1515 emit_zs_write(c
, rcp_w
);
1516 emit_rcp_wc_write(c
, rcp_w
);
1517 if (c
->vs_key
->per_vertex_point_size
)
1518 emit_point_size_write(c
);
1522 vc4_optimize_nir(struct nir_shader
*s
)
1525 unsigned lower_flrp
=
1526 (s
->options
->lower_flrp16
? 16 : 0) |
1527 (s
->options
->lower_flrp32
? 32 : 0) |
1528 (s
->options
->lower_flrp64
? 64 : 0);
1533 NIR_PASS_V(s
, nir_lower_vars_to_ssa
);
1534 NIR_PASS(progress
, s
, nir_lower_alu_to_scalar
, NULL
, NULL
);
1535 NIR_PASS(progress
, s
, nir_lower_phis_to_scalar
);
1536 NIR_PASS(progress
, s
, nir_copy_prop
);
1537 NIR_PASS(progress
, s
, nir_opt_remove_phis
);
1538 NIR_PASS(progress
, s
, nir_opt_dce
);
1539 NIR_PASS(progress
, s
, nir_opt_dead_cf
);
1540 NIR_PASS(progress
, s
, nir_opt_cse
);
1541 NIR_PASS(progress
, s
, nir_opt_peephole_select
, 8, true, true);
1542 NIR_PASS(progress
, s
, nir_opt_algebraic
);
1543 NIR_PASS(progress
, s
, nir_opt_constant_folding
);
1544 if (lower_flrp
!= 0) {
1545 bool lower_flrp_progress
= false;
1547 NIR_PASS(lower_flrp_progress
, s
, nir_lower_flrp
,
1549 false /* always_precise */,
1550 s
->options
->lower_ffma
);
1551 if (lower_flrp_progress
) {
1552 NIR_PASS(progress
, s
, nir_opt_constant_folding
);
1556 /* Nothing should rematerialize any flrps, so we only
1557 * need to do this lowering once.
1562 NIR_PASS(progress
, s
, nir_opt_undef
);
1563 NIR_PASS(progress
, s
, nir_opt_loop_unroll
,
1565 nir_var_shader_out
|
1566 nir_var_function_temp
);
1571 driver_location_compare(const void *in_a
, const void *in_b
)
1573 const nir_variable
*const *a
= in_a
;
1574 const nir_variable
*const *b
= in_b
;
1576 return (*a
)->data
.driver_location
- (*b
)->data
.driver_location
;
1580 ntq_setup_inputs(struct vc4_compile
*c
)
1582 unsigned num_entries
= 0;
1583 nir_foreach_shader_in_variable(var
, c
->s
)
1586 nir_variable
*vars
[num_entries
];
1589 nir_foreach_shader_in_variable(var
, c
->s
)
1592 /* Sort the variables so that we emit the input setup in
1593 * driver_location order. This is required for VPM reads, whose data
1594 * is fetched into the VPM in driver_location (TGSI register index)
1597 qsort(&vars
, num_entries
, sizeof(*vars
), driver_location_compare
);
1599 for (unsigned i
= 0; i
< num_entries
; i
++) {
1600 nir_variable
*var
= vars
[i
];
1601 unsigned array_len
= MAX2(glsl_get_length(var
->type
), 1);
1602 unsigned loc
= var
->data
.driver_location
;
1604 assert(array_len
== 1);
1606 resize_qreg_array(c
, &c
->inputs
, &c
->inputs_array_size
,
1609 if (c
->stage
== QSTAGE_FRAG
) {
1610 if (var
->data
.location
== VARYING_SLOT_POS
) {
1611 emit_fragcoord_input(c
, loc
);
1612 } else if (util_varying_is_point_coord(var
->data
.location
,
1613 c
->fs_key
->point_sprite_mask
)) {
1614 c
->inputs
[loc
* 4 + 0] = c
->point_x
;
1615 c
->inputs
[loc
* 4 + 1] = c
->point_y
;
1617 emit_fragment_input(c
, loc
, var
->data
.location
);
1620 emit_vertex_input(c
, loc
);
1626 ntq_setup_outputs(struct vc4_compile
*c
)
1628 nir_foreach_shader_out_variable(var
, c
->s
) {
1629 unsigned array_len
= MAX2(glsl_get_length(var
->type
), 1);
1630 unsigned loc
= var
->data
.driver_location
* 4;
1632 assert(array_len
== 1);
1635 for (int i
= 0; i
< 4; i
++)
1636 add_output(c
, loc
+ i
, var
->data
.location
, i
);
1638 if (c
->stage
== QSTAGE_FRAG
) {
1639 switch (var
->data
.location
) {
1640 case FRAG_RESULT_COLOR
:
1641 case FRAG_RESULT_DATA0
:
1642 c
->output_color_index
= loc
;
1644 case FRAG_RESULT_DEPTH
:
1645 c
->output_position_index
= loc
;
1647 case FRAG_RESULT_SAMPLE_MASK
:
1648 c
->output_sample_mask_index
= loc
;
1652 switch (var
->data
.location
) {
1653 case VARYING_SLOT_POS
:
1654 c
->output_position_index
= loc
;
1656 case VARYING_SLOT_PSIZ
:
1657 c
->output_point_size_index
= loc
;
1665 * Sets up the mapping from nir_register to struct qreg *.
1667 * Each nir_register gets a struct qreg per 32-bit component being stored.
1670 ntq_setup_registers(struct vc4_compile
*c
, struct exec_list
*list
)
1672 foreach_list_typed(nir_register
, nir_reg
, node
, list
) {
1673 unsigned array_len
= MAX2(nir_reg
->num_array_elems
, 1);
1674 struct qreg
*qregs
= ralloc_array(c
->def_ht
, struct qreg
,
1676 nir_reg
->num_components
);
1678 _mesa_hash_table_insert(c
->def_ht
, nir_reg
, qregs
);
1680 for (int i
= 0; i
< array_len
* nir_reg
->num_components
; i
++)
1681 qregs
[i
] = qir_get_temp(c
);
1686 ntq_emit_load_const(struct vc4_compile
*c
, nir_load_const_instr
*instr
)
1688 struct qreg
*qregs
= ntq_init_ssa_def(c
, &instr
->def
);
1689 for (int i
= 0; i
< instr
->def
.num_components
; i
++)
1690 qregs
[i
] = qir_uniform_ui(c
, instr
->value
[i
].u32
);
1692 _mesa_hash_table_insert(c
->def_ht
, &instr
->def
, qregs
);
1696 ntq_emit_ssa_undef(struct vc4_compile
*c
, nir_ssa_undef_instr
*instr
)
1698 struct qreg
*qregs
= ntq_init_ssa_def(c
, &instr
->def
);
1700 /* QIR needs there to be *some* value, so pick 0 (same as for
1701 * ntq_setup_registers().
1703 for (int i
= 0; i
< instr
->def
.num_components
; i
++)
1704 qregs
[i
] = qir_uniform_ui(c
, 0);
1708 ntq_emit_color_read(struct vc4_compile
*c
, nir_intrinsic_instr
*instr
)
1710 assert(nir_src_as_uint(instr
->src
[0]) == 0);
1712 /* Reads of the per-sample color need to be done in
1715 int sample_index
= (nir_intrinsic_base(instr
) -
1716 VC4_NIR_TLB_COLOR_READ_INPUT
);
1717 for (int i
= 0; i
<= sample_index
; i
++) {
1718 if (c
->color_reads
[i
].file
== QFILE_NULL
) {
1720 qir_TLB_COLOR_READ(c
);
1723 ntq_store_dest(c
, &instr
->dest
, 0,
1724 qir_MOV(c
, c
->color_reads
[sample_index
]));
1728 ntq_emit_load_input(struct vc4_compile
*c
, nir_intrinsic_instr
*instr
)
1730 assert(instr
->num_components
== 1);
1731 assert(nir_src_is_const(instr
->src
[0]) &&
1732 "vc4 doesn't support indirect inputs");
1734 if (c
->stage
== QSTAGE_FRAG
&&
1735 nir_intrinsic_base(instr
) >= VC4_NIR_TLB_COLOR_READ_INPUT
) {
1736 ntq_emit_color_read(c
, instr
);
1740 uint32_t offset
= nir_intrinsic_base(instr
) +
1741 nir_src_as_uint(instr
->src
[0]);
1742 int comp
= nir_intrinsic_component(instr
);
1743 ntq_store_dest(c
, &instr
->dest
, 0,
1744 qir_MOV(c
, c
->inputs
[offset
* 4 + comp
]));
1748 ntq_emit_intrinsic(struct vc4_compile
*c
, nir_intrinsic_instr
*instr
)
1752 switch (instr
->intrinsic
) {
1753 case nir_intrinsic_load_uniform
:
1754 assert(instr
->num_components
== 1);
1755 if (nir_src_is_const(instr
->src
[0])) {
1756 offset
= nir_intrinsic_base(instr
) +
1757 nir_src_as_uint(instr
->src
[0]);
1758 assert(offset
% 4 == 0);
1759 /* We need dwords */
1760 offset
= offset
/ 4;
1761 ntq_store_dest(c
, &instr
->dest
, 0,
1762 qir_uniform(c
, QUNIFORM_UNIFORM
,
1765 ntq_store_dest(c
, &instr
->dest
, 0,
1766 indirect_uniform_load(c
, instr
));
1770 case nir_intrinsic_load_ubo
:
1771 assert(instr
->num_components
== 1);
1772 ntq_store_dest(c
, &instr
->dest
, 0, vc4_ubo_load(c
, instr
));
1775 case nir_intrinsic_load_user_clip_plane
:
1776 for (int i
= 0; i
< nir_intrinsic_dest_components(instr
); i
++) {
1777 ntq_store_dest(c
, &instr
->dest
, i
,
1778 qir_uniform(c
, QUNIFORM_USER_CLIP_PLANE
,
1779 nir_intrinsic_ucp_id(instr
) *
1784 case nir_intrinsic_load_blend_const_color_r_float
:
1785 case nir_intrinsic_load_blend_const_color_g_float
:
1786 case nir_intrinsic_load_blend_const_color_b_float
:
1787 case nir_intrinsic_load_blend_const_color_a_float
:
1788 ntq_store_dest(c
, &instr
->dest
, 0,
1789 qir_uniform(c
, QUNIFORM_BLEND_CONST_COLOR_X
+
1791 nir_intrinsic_load_blend_const_color_r_float
),
1795 case nir_intrinsic_load_blend_const_color_rgba8888_unorm
:
1796 ntq_store_dest(c
, &instr
->dest
, 0,
1797 qir_uniform(c
, QUNIFORM_BLEND_CONST_COLOR_RGBA
,
1801 case nir_intrinsic_load_blend_const_color_aaaa8888_unorm
:
1802 ntq_store_dest(c
, &instr
->dest
, 0,
1803 qir_uniform(c
, QUNIFORM_BLEND_CONST_COLOR_AAAA
,
1807 case nir_intrinsic_load_alpha_ref_float
:
1808 ntq_store_dest(c
, &instr
->dest
, 0,
1809 qir_uniform(c
, QUNIFORM_ALPHA_REF
, 0));
1812 case nir_intrinsic_load_sample_mask_in
:
1813 ntq_store_dest(c
, &instr
->dest
, 0,
1814 qir_uniform(c
, QUNIFORM_SAMPLE_MASK
, 0));
1817 case nir_intrinsic_load_front_face
:
1818 /* The register contains 0 (front) or 1 (back), and we need to
1819 * turn it into a NIR bool where true means front.
1821 ntq_store_dest(c
, &instr
->dest
, 0,
1823 qir_uniform_ui(c
, -1),
1824 qir_reg(QFILE_FRAG_REV_FLAG
, 0)));
1827 case nir_intrinsic_load_input
:
1828 ntq_emit_load_input(c
, instr
);
1831 case nir_intrinsic_store_output
:
1832 assert(nir_src_is_const(instr
->src
[1]) &&
1833 "vc4 doesn't support indirect outputs");
1834 offset
= nir_intrinsic_base(instr
) +
1835 nir_src_as_uint(instr
->src
[1]);
1837 /* MSAA color outputs are the only case where we have an
1838 * output that's not lowered to being a store of a single 32
1841 if (c
->stage
== QSTAGE_FRAG
&& instr
->num_components
== 4) {
1842 assert(offset
== c
->output_color_index
);
1843 for (int i
= 0; i
< 4; i
++) {
1844 c
->sample_colors
[i
] =
1845 qir_MOV(c
, ntq_get_src(c
, instr
->src
[0],
1849 offset
= offset
* 4 + nir_intrinsic_component(instr
);
1850 assert(instr
->num_components
== 1);
1851 c
->outputs
[offset
] =
1852 qir_MOV(c
, ntq_get_src(c
, instr
->src
[0], 0));
1853 c
->num_outputs
= MAX2(c
->num_outputs
, offset
+ 1);
1857 case nir_intrinsic_discard
:
1858 if (c
->execute
.file
!= QFILE_NULL
) {
1859 qir_SF(c
, c
->execute
);
1860 qir_MOV_cond(c
, QPU_COND_ZS
, c
->discard
,
1861 qir_uniform_ui(c
, ~0));
1863 qir_MOV_dest(c
, c
->discard
, qir_uniform_ui(c
, ~0));
1867 case nir_intrinsic_discard_if
: {
1868 /* true (~0) if we're discarding */
1869 struct qreg cond
= ntq_get_src(c
, instr
->src
[0], 0);
1871 if (c
->execute
.file
!= QFILE_NULL
) {
1872 /* execute == 0 means the channel is active. Invert
1873 * the condition so that we can use zero as "executing
1876 qir_SF(c
, qir_AND(c
, c
->execute
, qir_NOT(c
, cond
)));
1877 qir_MOV_cond(c
, QPU_COND_ZS
, c
->discard
, cond
);
1879 qir_OR_dest(c
, c
->discard
, c
->discard
,
1880 ntq_get_src(c
, instr
->src
[0], 0));
1887 fprintf(stderr
, "Unknown intrinsic: ");
1888 nir_print_instr(&instr
->instr
, stderr
);
1889 fprintf(stderr
, "\n");
1894 /* Clears (activates) the execute flags for any channels whose jump target
1895 * matches this block.
1898 ntq_activate_execute_for_block(struct vc4_compile
*c
)
1900 qir_SF(c
, qir_SUB(c
,
1902 qir_uniform_ui(c
, c
->cur_block
->index
)));
1903 qir_MOV_cond(c
, QPU_COND_ZS
, c
->execute
, qir_uniform_ui(c
, 0));
1907 ntq_emit_if(struct vc4_compile
*c
, nir_if
*if_stmt
)
1909 if (!c
->vc4
->screen
->has_control_flow
) {
1911 "IF statement support requires updated kernel.\n");
1915 nir_block
*nir_else_block
= nir_if_first_else_block(if_stmt
);
1916 bool empty_else_block
=
1917 (nir_else_block
== nir_if_last_else_block(if_stmt
) &&
1918 exec_list_is_empty(&nir_else_block
->instr_list
));
1920 struct qblock
*then_block
= qir_new_block(c
);
1921 struct qblock
*after_block
= qir_new_block(c
);
1922 struct qblock
*else_block
;
1923 if (empty_else_block
)
1924 else_block
= after_block
;
1926 else_block
= qir_new_block(c
);
1928 bool was_top_level
= false;
1929 if (c
->execute
.file
== QFILE_NULL
) {
1930 c
->execute
= qir_MOV(c
, qir_uniform_ui(c
, 0));
1931 was_top_level
= true;
1934 /* Set ZS for executing (execute == 0) and jumping (if->condition ==
1935 * 0) channels, and then update execute flags for those to point to
1940 ntq_get_src(c
, if_stmt
->condition
, 0)));
1941 qir_MOV_cond(c
, QPU_COND_ZS
, c
->execute
,
1942 qir_uniform_ui(c
, else_block
->index
));
1944 /* Jump to ELSE if nothing is active for THEN, otherwise fall
1947 qir_SF(c
, c
->execute
);
1948 qir_BRANCH(c
, QPU_COND_BRANCH_ALL_ZC
);
1949 qir_link_blocks(c
->cur_block
, else_block
);
1950 qir_link_blocks(c
->cur_block
, then_block
);
1952 /* Process the THEN block. */
1953 qir_set_emit_block(c
, then_block
);
1954 ntq_emit_cf_list(c
, &if_stmt
->then_list
);
1956 if (!empty_else_block
) {
1957 /* Handle the end of the THEN block. First, all currently
1958 * active channels update their execute flags to point to
1961 qir_SF(c
, c
->execute
);
1962 qir_MOV_cond(c
, QPU_COND_ZS
, c
->execute
,
1963 qir_uniform_ui(c
, after_block
->index
));
1965 /* If everything points at ENDIF, then jump there immediately. */
1966 qir_SF(c
, qir_SUB(c
, c
->execute
, qir_uniform_ui(c
, after_block
->index
)));
1967 qir_BRANCH(c
, QPU_COND_BRANCH_ALL_ZS
);
1968 qir_link_blocks(c
->cur_block
, after_block
);
1969 qir_link_blocks(c
->cur_block
, else_block
);
1971 qir_set_emit_block(c
, else_block
);
1972 ntq_activate_execute_for_block(c
);
1973 ntq_emit_cf_list(c
, &if_stmt
->else_list
);
1976 qir_link_blocks(c
->cur_block
, after_block
);
1978 qir_set_emit_block(c
, after_block
);
1979 if (was_top_level
) {
1980 c
->execute
= c
->undef
;
1981 c
->last_top_block
= c
->cur_block
;
1983 ntq_activate_execute_for_block(c
);
1988 ntq_emit_jump(struct vc4_compile
*c
, nir_jump_instr
*jump
)
1990 struct qblock
*jump_block
;
1991 switch (jump
->type
) {
1992 case nir_jump_break
:
1993 jump_block
= c
->loop_break_block
;
1995 case nir_jump_continue
:
1996 jump_block
= c
->loop_cont_block
;
1999 unreachable("Unsupported jump type\n");
2002 qir_SF(c
, c
->execute
);
2003 qir_MOV_cond(c
, QPU_COND_ZS
, c
->execute
,
2004 qir_uniform_ui(c
, jump_block
->index
));
2006 /* Jump to the destination block if everyone has taken the jump. */
2007 qir_SF(c
, qir_SUB(c
, c
->execute
, qir_uniform_ui(c
, jump_block
->index
)));
2008 qir_BRANCH(c
, QPU_COND_BRANCH_ALL_ZS
);
2009 struct qblock
*new_block
= qir_new_block(c
);
2010 qir_link_blocks(c
->cur_block
, jump_block
);
2011 qir_link_blocks(c
->cur_block
, new_block
);
2012 qir_set_emit_block(c
, new_block
);
2016 ntq_emit_instr(struct vc4_compile
*c
, nir_instr
*instr
)
2018 switch (instr
->type
) {
2019 case nir_instr_type_alu
:
2020 ntq_emit_alu(c
, nir_instr_as_alu(instr
));
2023 case nir_instr_type_intrinsic
:
2024 ntq_emit_intrinsic(c
, nir_instr_as_intrinsic(instr
));
2027 case nir_instr_type_load_const
:
2028 ntq_emit_load_const(c
, nir_instr_as_load_const(instr
));
2031 case nir_instr_type_ssa_undef
:
2032 ntq_emit_ssa_undef(c
, nir_instr_as_ssa_undef(instr
));
2035 case nir_instr_type_tex
:
2036 ntq_emit_tex(c
, nir_instr_as_tex(instr
));
2039 case nir_instr_type_jump
:
2040 ntq_emit_jump(c
, nir_instr_as_jump(instr
));
2044 fprintf(stderr
, "Unknown NIR instr type: ");
2045 nir_print_instr(instr
, stderr
);
2046 fprintf(stderr
, "\n");
2052 ntq_emit_block(struct vc4_compile
*c
, nir_block
*block
)
2054 nir_foreach_instr(instr
, block
) {
2055 ntq_emit_instr(c
, instr
);
2059 static void ntq_emit_cf_list(struct vc4_compile
*c
, struct exec_list
*list
);
2062 ntq_emit_loop(struct vc4_compile
*c
, nir_loop
*loop
)
2064 if (!c
->vc4
->screen
->has_control_flow
) {
2066 "loop support requires updated kernel.\n");
2067 ntq_emit_cf_list(c
, &loop
->body
);
2071 bool was_top_level
= false;
2072 if (c
->execute
.file
== QFILE_NULL
) {
2073 c
->execute
= qir_MOV(c
, qir_uniform_ui(c
, 0));
2074 was_top_level
= true;
2077 struct qblock
*save_loop_cont_block
= c
->loop_cont_block
;
2078 struct qblock
*save_loop_break_block
= c
->loop_break_block
;
2080 c
->loop_cont_block
= qir_new_block(c
);
2081 c
->loop_break_block
= qir_new_block(c
);
2083 qir_link_blocks(c
->cur_block
, c
->loop_cont_block
);
2084 qir_set_emit_block(c
, c
->loop_cont_block
);
2085 ntq_activate_execute_for_block(c
);
2087 ntq_emit_cf_list(c
, &loop
->body
);
2089 /* If anything had explicitly continued, or is here at the end of the
2090 * loop, then we need to loop again. SF updates are masked by the
2091 * instruction's condition, so we can do the OR of the two conditions
2094 qir_SF(c
, c
->execute
);
2095 struct qinst
*cont_check
=
2099 qir_uniform_ui(c
, c
->loop_cont_block
->index
));
2100 cont_check
->cond
= QPU_COND_ZC
;
2101 cont_check
->sf
= true;
2103 qir_BRANCH(c
, QPU_COND_BRANCH_ANY_ZS
);
2104 qir_link_blocks(c
->cur_block
, c
->loop_cont_block
);
2105 qir_link_blocks(c
->cur_block
, c
->loop_break_block
);
2107 qir_set_emit_block(c
, c
->loop_break_block
);
2108 if (was_top_level
) {
2109 c
->execute
= c
->undef
;
2110 c
->last_top_block
= c
->cur_block
;
2112 ntq_activate_execute_for_block(c
);
2115 c
->loop_break_block
= save_loop_break_block
;
2116 c
->loop_cont_block
= save_loop_cont_block
;
2120 ntq_emit_function(struct vc4_compile
*c
, nir_function_impl
*func
)
2122 fprintf(stderr
, "FUNCTIONS not handled.\n");
2127 ntq_emit_cf_list(struct vc4_compile
*c
, struct exec_list
*list
)
2129 foreach_list_typed(nir_cf_node
, node
, node
, list
) {
2130 switch (node
->type
) {
2131 case nir_cf_node_block
:
2132 ntq_emit_block(c
, nir_cf_node_as_block(node
));
2135 case nir_cf_node_if
:
2136 ntq_emit_if(c
, nir_cf_node_as_if(node
));
2139 case nir_cf_node_loop
:
2140 ntq_emit_loop(c
, nir_cf_node_as_loop(node
));
2143 case nir_cf_node_function
:
2144 ntq_emit_function(c
, nir_cf_node_as_function(node
));
2148 fprintf(stderr
, "Unknown NIR node type\n");
2155 ntq_emit_impl(struct vc4_compile
*c
, nir_function_impl
*impl
)
2157 ntq_setup_registers(c
, &impl
->registers
);
2158 ntq_emit_cf_list(c
, &impl
->body
);
2162 nir_to_qir(struct vc4_compile
*c
)
2164 if (c
->stage
== QSTAGE_FRAG
&& c
->s
->info
.fs
.uses_discard
)
2165 c
->discard
= qir_MOV(c
, qir_uniform_ui(c
, 0));
2167 ntq_setup_inputs(c
);
2168 ntq_setup_outputs(c
);
2170 /* Find the main function and emit the body. */
2171 nir_foreach_function(function
, c
->s
) {
2172 assert(strcmp(function
->name
, "main") == 0);
2173 assert(function
->impl
);
2174 ntq_emit_impl(c
, function
->impl
);
2178 static const nir_shader_compiler_options nir_options
= {
2179 .lower_all_io_to_temps
= true,
2180 .lower_extract_byte
= true,
2181 .lower_extract_word
= true,
2184 .lower_flrp32
= true,
2188 .lower_fsqrt
= true,
2189 .lower_ldexp
= true,
2190 .lower_negate
= true,
2191 .lower_rotate
= true,
2192 .lower_to_scalar
= true,
2193 .max_unroll_iterations
= 32,
2197 vc4_screen_get_compiler_options(struct pipe_screen
*pscreen
,
2198 enum pipe_shader_ir ir
,
2199 enum pipe_shader_type shader
)
2201 return &nir_options
;
2205 count_nir_instrs(nir_shader
*nir
)
2208 nir_foreach_function(function
, nir
) {
2209 if (!function
->impl
)
2211 nir_foreach_block(block
, function
->impl
) {
2212 nir_foreach_instr(instr
, block
)
2219 static struct vc4_compile
*
2220 vc4_shader_ntq(struct vc4_context
*vc4
, enum qstage stage
,
2221 struct vc4_key
*key
, bool fs_threaded
)
2223 struct vc4_compile
*c
= qir_compile_init();
2227 c
->shader_state
= &key
->shader_state
->base
;
2228 c
->program_id
= key
->shader_state
->program_id
;
2230 p_atomic_inc_return(&key
->shader_state
->compiled_variant_count
);
2231 c
->fs_threaded
= fs_threaded
;
2236 c
->fs_key
= (struct vc4_fs_key
*)key
;
2237 if (c
->fs_key
->is_points
) {
2238 c
->point_x
= emit_fragment_varying(c
, ~0, 0);
2239 c
->point_y
= emit_fragment_varying(c
, ~0, 0);
2240 } else if (c
->fs_key
->is_lines
) {
2241 c
->line_x
= emit_fragment_varying(c
, ~0, 0);
2245 c
->vs_key
= (struct vc4_vs_key
*)key
;
2248 c
->vs_key
= (struct vc4_vs_key
*)key
;
2252 c
->s
= nir_shader_clone(c
, key
->shader_state
->base
.ir
.nir
);
2254 if (stage
== QSTAGE_FRAG
) {
2255 if (c
->fs_key
->alpha_test_func
!= COMPARE_FUNC_ALWAYS
) {
2256 NIR_PASS_V(c
->s
, nir_lower_alpha_test
,
2257 c
->fs_key
->alpha_test_func
,
2258 c
->fs_key
->sample_alpha_to_one
&&
2262 NIR_PASS_V(c
->s
, vc4_nir_lower_blend
, c
);
2265 struct nir_lower_tex_options tex_options
= {
2266 /* We would need to implement txs, but we don't want the
2267 * int/float conversions
2269 .lower_rect
= false,
2273 /* Apply swizzles to all samplers. */
2274 .swizzle_result
= ~0,
2277 /* Lower the format swizzle and ARB_texture_swizzle-style swizzle.
2278 * The format swizzling applies before sRGB decode, and
2279 * ARB_texture_swizzle is the last thing before returning the sample.
2281 for (int i
= 0; i
< ARRAY_SIZE(key
->tex
); i
++) {
2282 enum pipe_format format
= c
->key
->tex
[i
].format
;
2287 const uint8_t *format_swizzle
= vc4_get_format_swizzle(format
);
2289 for (int j
= 0; j
< 4; j
++) {
2290 uint8_t arb_swiz
= c
->key
->tex
[i
].swizzle
[j
];
2292 if (arb_swiz
<= 3) {
2293 tex_options
.swizzles
[i
][j
] =
2294 format_swizzle
[arb_swiz
];
2296 tex_options
.swizzles
[i
][j
] = arb_swiz
;
2300 if (util_format_is_srgb(format
))
2301 tex_options
.lower_srgb
|= (1 << i
);
2304 NIR_PASS_V(c
->s
, nir_lower_tex
, &tex_options
);
2306 if (c
->fs_key
&& c
->fs_key
->light_twoside
)
2307 NIR_PASS_V(c
->s
, nir_lower_two_sided_color
, true);
2309 if (c
->vs_key
&& c
->vs_key
->clamp_color
)
2310 NIR_PASS_V(c
->s
, nir_lower_clamp_color_outputs
);
2312 if (c
->key
->ucp_enables
) {
2313 if (stage
== QSTAGE_FRAG
) {
2314 NIR_PASS_V(c
->s
, nir_lower_clip_fs
,
2315 c
->key
->ucp_enables
, false);
2317 NIR_PASS_V(c
->s
, nir_lower_clip_vs
,
2318 c
->key
->ucp_enables
, false, false, NULL
);
2319 NIR_PASS_V(c
->s
, nir_lower_io_to_scalar
,
2320 nir_var_shader_out
);
2324 /* FS input scalarizing must happen after nir_lower_two_sided_color,
2325 * which only handles a vec4 at a time. Similarly, VS output
2326 * scalarizing must happen after nir_lower_clip_vs.
2328 if (c
->stage
== QSTAGE_FRAG
)
2329 NIR_PASS_V(c
->s
, nir_lower_io_to_scalar
, nir_var_shader_in
);
2331 NIR_PASS_V(c
->s
, nir_lower_io_to_scalar
, nir_var_shader_out
);
2333 NIR_PASS_V(c
->s
, vc4_nir_lower_io
, c
);
2334 NIR_PASS_V(c
->s
, vc4_nir_lower_txf_ms
, c
);
2335 NIR_PASS_V(c
->s
, nir_lower_idiv
, nir_lower_idiv_fast
);
2337 vc4_optimize_nir(c
->s
);
2339 /* Do late algebraic optimization to turn add(a, neg(b)) back into
2340 * subs, then the mandatory cleanup after algebraic. Note that it may
2341 * produce fnegs, and if so then we need to keep running to squash
2344 bool more_late_algebraic
= true;
2345 while (more_late_algebraic
) {
2346 more_late_algebraic
= false;
2347 NIR_PASS(more_late_algebraic
, c
->s
, nir_opt_algebraic_late
);
2348 NIR_PASS_V(c
->s
, nir_opt_constant_folding
);
2349 NIR_PASS_V(c
->s
, nir_copy_prop
);
2350 NIR_PASS_V(c
->s
, nir_opt_dce
);
2351 NIR_PASS_V(c
->s
, nir_opt_cse
);
2354 NIR_PASS_V(c
->s
, nir_lower_bool_to_int32
);
2356 NIR_PASS_V(c
->s
, nir_convert_from_ssa
, true);
2358 if (vc4_debug
& VC4_DEBUG_SHADERDB
) {
2359 fprintf(stderr
, "SHADER-DB: %s prog %d/%d: %d NIR instructions\n",
2360 qir_get_stage_name(c
->stage
),
2361 c
->program_id
, c
->variant_id
,
2362 count_nir_instrs(c
->s
));
2365 if (vc4_debug
& VC4_DEBUG_NIR
) {
2366 fprintf(stderr
, "%s prog %d/%d NIR:\n",
2367 qir_get_stage_name(c
->stage
),
2368 c
->program_id
, c
->variant_id
);
2369 nir_print_shader(c
->s
, stderr
);
2376 /* FS threading requires that the thread execute
2377 * QPU_SIG_LAST_THREAD_SWITCH exactly once before terminating
2378 * (with no other THRSW afterwards, obviously). If we didn't
2379 * fetch a texture at a top level block, this wouldn't be
2382 if (c
->fs_threaded
&& !c
->last_thrsw_at_top_level
) {
2391 c
->vs_key
->fs_inputs
->input_slots
,
2392 c
->vs_key
->fs_inputs
->num_inputs
);
2399 if (vc4_debug
& VC4_DEBUG_QIR
) {
2400 fprintf(stderr
, "%s prog %d/%d pre-opt QIR:\n",
2401 qir_get_stage_name(c
->stage
),
2402 c
->program_id
, c
->variant_id
);
2404 fprintf(stderr
, "\n");
2408 qir_lower_uniforms(c
);
2410 qir_schedule_instructions(c
);
2411 qir_emit_uniform_stream_resets(c
);
2413 if (vc4_debug
& VC4_DEBUG_QIR
) {
2414 fprintf(stderr
, "%s prog %d/%d QIR:\n",
2415 qir_get_stage_name(c
->stage
),
2416 c
->program_id
, c
->variant_id
);
2418 fprintf(stderr
, "\n");
2421 qir_reorder_uniforms(c
);
2422 vc4_generate_code(vc4
, c
);
2424 if (vc4_debug
& VC4_DEBUG_SHADERDB
) {
2425 fprintf(stderr
, "SHADER-DB: %s prog %d/%d: %d instructions\n",
2426 qir_get_stage_name(c
->stage
),
2427 c
->program_id
, c
->variant_id
,
2429 fprintf(stderr
, "SHADER-DB: %s prog %d/%d: %d uniforms\n",
2430 qir_get_stage_name(c
->stage
),
2431 c
->program_id
, c
->variant_id
,
2441 vc4_shader_state_create(struct pipe_context
*pctx
,
2442 const struct pipe_shader_state
*cso
)
2444 struct vc4_context
*vc4
= vc4_context(pctx
);
2445 struct vc4_uncompiled_shader
*so
= CALLOC_STRUCT(vc4_uncompiled_shader
);
2449 so
->program_id
= vc4
->next_uncompiled_program_id
++;
2453 if (cso
->type
== PIPE_SHADER_IR_NIR
) {
2454 /* The backend takes ownership of the NIR shader on state
2459 assert(cso
->type
== PIPE_SHADER_IR_TGSI
);
2461 if (vc4_debug
& VC4_DEBUG_TGSI
) {
2462 fprintf(stderr
, "prog %d TGSI:\n",
2464 tgsi_dump(cso
->tokens
, 0);
2465 fprintf(stderr
, "\n");
2467 s
= tgsi_to_nir(cso
->tokens
, pctx
->screen
, false);
2470 if (s
->info
.stage
== MESA_SHADER_VERTEX
)
2471 NIR_PASS_V(s
, nir_lower_point_size
, 1.0f
, 0.0f
);
2473 NIR_PASS_V(s
, nir_lower_io
, nir_var_shader_in
| nir_var_shader_out
,
2474 type_size
, (nir_lower_io_options
)0);
2476 NIR_PASS_V(s
, nir_lower_regs_to_ssa
);
2477 NIR_PASS_V(s
, nir_normalize_cubemap_coords
);
2479 NIR_PASS_V(s
, nir_lower_load_const_to_scalar
);
2481 vc4_optimize_nir(s
);
2483 NIR_PASS_V(s
, nir_remove_dead_variables
, nir_var_function_temp
, NULL
);
2485 /* Garbage collect dead instructions */
2488 so
->base
.type
= PIPE_SHADER_IR_NIR
;
2489 so
->base
.ir
.nir
= s
;
2491 if (vc4_debug
& VC4_DEBUG_NIR
) {
2492 fprintf(stderr
, "%s prog %d NIR:\n",
2493 gl_shader_stage_name(s
->info
.stage
),
2495 nir_print_shader(s
, stderr
);
2496 fprintf(stderr
, "\n");
2503 copy_uniform_state_to_shader(struct vc4_compiled_shader
*shader
,
2504 struct vc4_compile
*c
)
2506 int count
= c
->num_uniforms
;
2507 struct vc4_shader_uniform_info
*uinfo
= &shader
->uniforms
;
2509 uinfo
->count
= count
;
2510 uinfo
->data
= ralloc_array(shader
, uint32_t, count
);
2511 memcpy(uinfo
->data
, c
->uniform_data
,
2512 count
* sizeof(*uinfo
->data
));
2513 uinfo
->contents
= ralloc_array(shader
, enum quniform_contents
, count
);
2514 memcpy(uinfo
->contents
, c
->uniform_contents
,
2515 count
* sizeof(*uinfo
->contents
));
2516 uinfo
->num_texture_samples
= c
->num_texture_samples
;
2518 vc4_set_shader_uniform_dirty_flags(shader
);
2522 vc4_setup_compiled_fs_inputs(struct vc4_context
*vc4
, struct vc4_compile
*c
,
2523 struct vc4_compiled_shader
*shader
)
2525 struct vc4_fs_inputs inputs
;
2527 memset(&inputs
, 0, sizeof(inputs
));
2528 inputs
.input_slots
= ralloc_array(shader
,
2529 struct vc4_varying_slot
,
2530 c
->num_input_slots
);
2532 bool input_live
[c
->num_input_slots
];
2534 memset(input_live
, 0, sizeof(input_live
));
2535 qir_for_each_inst_inorder(inst
, c
) {
2536 for (int i
= 0; i
< qir_get_nsrc(inst
); i
++) {
2537 if (inst
->src
[i
].file
== QFILE_VARY
)
2538 input_live
[inst
->src
[i
].index
] = true;
2542 for (int i
= 0; i
< c
->num_input_slots
; i
++) {
2543 struct vc4_varying_slot
*slot
= &c
->input_slots
[i
];
2548 /* Skip non-VS-output inputs. */
2549 if (slot
->slot
== (uint8_t)~0)
2552 if (slot
->slot
== VARYING_SLOT_COL0
||
2553 slot
->slot
== VARYING_SLOT_COL1
||
2554 slot
->slot
== VARYING_SLOT_BFC0
||
2555 slot
->slot
== VARYING_SLOT_BFC1
) {
2556 shader
->color_inputs
|= (1 << inputs
.num_inputs
);
2559 inputs
.input_slots
[inputs
.num_inputs
] = *slot
;
2560 inputs
.num_inputs
++;
2562 shader
->num_inputs
= inputs
.num_inputs
;
2564 /* Add our set of inputs to the set of all inputs seen. This way, we
2565 * can have a single pointer that identifies an FS inputs set,
2566 * allowing VS to avoid recompiling when the FS is recompiled (or a
2567 * new one is bound using separate shader objects) but the inputs
2570 struct set_entry
*entry
= _mesa_set_search(vc4
->fs_inputs_set
, &inputs
);
2572 shader
->fs_inputs
= entry
->key
;
2573 ralloc_free(inputs
.input_slots
);
2575 struct vc4_fs_inputs
*alloc_inputs
;
2577 alloc_inputs
= rzalloc(vc4
->fs_inputs_set
, struct vc4_fs_inputs
);
2578 memcpy(alloc_inputs
, &inputs
, sizeof(inputs
));
2579 ralloc_steal(alloc_inputs
, inputs
.input_slots
);
2580 _mesa_set_add(vc4
->fs_inputs_set
, alloc_inputs
);
2582 shader
->fs_inputs
= alloc_inputs
;
2586 static struct vc4_compiled_shader
*
2587 vc4_get_compiled_shader(struct vc4_context
*vc4
, enum qstage stage
,
2588 struct vc4_key
*key
)
2590 struct hash_table
*ht
;
2594 if (stage
== QSTAGE_FRAG
) {
2596 key_size
= sizeof(struct vc4_fs_key
);
2597 try_threading
= vc4
->screen
->has_threaded_fs
;
2600 key_size
= sizeof(struct vc4_vs_key
);
2601 try_threading
= false;
2604 struct vc4_compiled_shader
*shader
;
2605 struct hash_entry
*entry
= _mesa_hash_table_search(ht
, key
);
2609 struct vc4_compile
*c
= vc4_shader_ntq(vc4
, stage
, key
, try_threading
);
2610 /* If the FS failed to compile threaded, fall back to single threaded. */
2611 if (try_threading
&& c
->failed
) {
2612 qir_compile_destroy(c
);
2613 c
= vc4_shader_ntq(vc4
, stage
, key
, false);
2616 shader
= rzalloc(NULL
, struct vc4_compiled_shader
);
2618 shader
->program_id
= vc4
->next_compiled_program_id
++;
2619 if (stage
== QSTAGE_FRAG
) {
2620 vc4_setup_compiled_fs_inputs(vc4
, c
, shader
);
2622 /* Note: the temporary clone in c->s has been freed. */
2623 nir_shader
*orig_shader
= key
->shader_state
->base
.ir
.nir
;
2624 if (orig_shader
->info
.outputs_written
& (1 << FRAG_RESULT_DEPTH
))
2625 shader
->disable_early_z
= true;
2627 shader
->num_inputs
= c
->num_inputs
;
2629 shader
->vattr_offsets
[0] = 0;
2630 for (int i
= 0; i
< 8; i
++) {
2631 shader
->vattr_offsets
[i
+ 1] =
2632 shader
->vattr_offsets
[i
] + c
->vattr_sizes
[i
];
2634 if (c
->vattr_sizes
[i
])
2635 shader
->vattrs_live
|= (1 << i
);
2639 shader
->failed
= c
->failed
;
2641 shader
->failed
= true;
2643 copy_uniform_state_to_shader(shader
, c
);
2644 shader
->bo
= vc4_bo_alloc_shader(vc4
->screen
, c
->qpu_insts
,
2649 shader
->fs_threaded
= c
->fs_threaded
;
2651 if ((vc4_debug
& VC4_DEBUG_SHADERDB
) && stage
== QSTAGE_FRAG
) {
2652 fprintf(stderr
, "SHADER-DB: %s prog %d/%d: %d FS threads\n",
2653 qir_get_stage_name(c
->stage
),
2654 c
->program_id
, c
->variant_id
,
2655 1 + shader
->fs_threaded
);
2658 qir_compile_destroy(c
);
2660 struct vc4_key
*dup_key
;
2661 dup_key
= rzalloc_size(shader
, key_size
); /* TODO: don't use rzalloc */
2662 memcpy(dup_key
, key
, key_size
);
2663 _mesa_hash_table_insert(ht
, dup_key
, shader
);
2669 vc4_setup_shared_key(struct vc4_context
*vc4
, struct vc4_key
*key
,
2670 struct vc4_texture_stateobj
*texstate
)
2672 for (int i
= 0; i
< texstate
->num_textures
; i
++) {
2673 struct pipe_sampler_view
*sampler
= texstate
->textures
[i
];
2674 struct vc4_sampler_view
*vc4_sampler
= vc4_sampler_view(sampler
);
2675 struct pipe_sampler_state
*sampler_state
=
2676 texstate
->samplers
[i
];
2681 key
->tex
[i
].format
= sampler
->format
;
2682 key
->tex
[i
].swizzle
[0] = sampler
->swizzle_r
;
2683 key
->tex
[i
].swizzle
[1] = sampler
->swizzle_g
;
2684 key
->tex
[i
].swizzle
[2] = sampler
->swizzle_b
;
2685 key
->tex
[i
].swizzle
[3] = sampler
->swizzle_a
;
2687 if (sampler
->texture
->nr_samples
> 1) {
2688 key
->tex
[i
].msaa_width
= sampler
->texture
->width0
;
2689 key
->tex
[i
].msaa_height
= sampler
->texture
->height0
;
2690 } else if (sampler
){
2691 key
->tex
[i
].compare_mode
= sampler_state
->compare_mode
;
2692 key
->tex
[i
].compare_func
= sampler_state
->compare_func
;
2693 key
->tex
[i
].wrap_s
= sampler_state
->wrap_s
;
2694 key
->tex
[i
].wrap_t
= sampler_state
->wrap_t
;
2695 key
->tex
[i
].force_first_level
=
2696 vc4_sampler
->force_first_level
;
2700 key
->ucp_enables
= vc4
->rasterizer
->base
.clip_plane_enable
;
2704 vc4_update_compiled_fs(struct vc4_context
*vc4
, uint8_t prim_mode
)
2706 struct vc4_job
*job
= vc4
->job
;
2707 struct vc4_fs_key local_key
;
2708 struct vc4_fs_key
*key
= &local_key
;
2710 if (!(vc4
->dirty
& (VC4_DIRTY_PRIM_MODE
|
2712 VC4_DIRTY_FRAMEBUFFER
|
2714 VC4_DIRTY_RASTERIZER
|
2715 VC4_DIRTY_SAMPLE_MASK
|
2717 VC4_DIRTY_UNCOMPILED_FS
|
2718 VC4_DIRTY_UBO_1_SIZE
))) {
2722 memset(key
, 0, sizeof(*key
));
2723 vc4_setup_shared_key(vc4
, &key
->base
, &vc4
->fragtex
);
2724 key
->base
.shader_state
= vc4
->prog
.bind_fs
;
2725 key
->is_points
= (prim_mode
== PIPE_PRIM_POINTS
);
2726 key
->is_lines
= (prim_mode
>= PIPE_PRIM_LINES
&&
2727 prim_mode
<= PIPE_PRIM_LINE_STRIP
);
2728 key
->blend
= vc4
->blend
->rt
[0];
2729 if (vc4
->blend
->logicop_enable
) {
2730 key
->logicop_func
= vc4
->blend
->logicop_func
;
2732 key
->logicop_func
= PIPE_LOGICOP_COPY
;
2735 key
->msaa
= vc4
->rasterizer
->base
.multisample
;
2736 key
->sample_coverage
= (vc4
->sample_mask
!= (1 << VC4_MAX_SAMPLES
) - 1);
2737 key
->sample_alpha_to_coverage
= vc4
->blend
->alpha_to_coverage
;
2738 key
->sample_alpha_to_one
= vc4
->blend
->alpha_to_one
;
2741 if (vc4
->framebuffer
.cbufs
[0])
2742 key
->color_format
= vc4
->framebuffer
.cbufs
[0]->format
;
2744 key
->stencil_enabled
= vc4
->zsa
->stencil_uniforms
[0] != 0;
2745 key
->stencil_twoside
= vc4
->zsa
->stencil_uniforms
[1] != 0;
2746 key
->stencil_full_writemasks
= vc4
->zsa
->stencil_uniforms
[2] != 0;
2747 key
->depth_enabled
= (vc4
->zsa
->base
.depth
.enabled
||
2748 key
->stencil_enabled
);
2749 if (vc4
->zsa
->base
.alpha
.enabled
)
2750 key
->alpha_test_func
= vc4
->zsa
->base
.alpha
.func
;
2752 key
->alpha_test_func
= COMPARE_FUNC_ALWAYS
;
2754 if (key
->is_points
) {
2755 key
->point_sprite_mask
=
2756 vc4
->rasterizer
->base
.sprite_coord_enable
;
2757 key
->point_coord_upper_left
=
2758 (vc4
->rasterizer
->base
.sprite_coord_mode
==
2759 PIPE_SPRITE_COORD_UPPER_LEFT
);
2762 key
->ubo_1_size
= vc4
->constbuf
[PIPE_SHADER_FRAGMENT
].cb
[1].buffer_size
;
2763 key
->light_twoside
= vc4
->rasterizer
->base
.light_twoside
;
2765 struct vc4_compiled_shader
*old_fs
= vc4
->prog
.fs
;
2766 vc4
->prog
.fs
= vc4_get_compiled_shader(vc4
, QSTAGE_FRAG
, &key
->base
);
2767 if (vc4
->prog
.fs
== old_fs
)
2770 vc4
->dirty
|= VC4_DIRTY_COMPILED_FS
;
2772 if (vc4
->rasterizer
->base
.flatshade
&&
2773 (!old_fs
|| vc4
->prog
.fs
->color_inputs
!= old_fs
->color_inputs
)) {
2774 vc4
->dirty
|= VC4_DIRTY_FLAT_SHADE_FLAGS
;
2777 if (!old_fs
|| vc4
->prog
.fs
->fs_inputs
!= old_fs
->fs_inputs
)
2778 vc4
->dirty
|= VC4_DIRTY_FS_INPUTS
;
2782 vc4_update_compiled_vs(struct vc4_context
*vc4
, uint8_t prim_mode
)
2784 struct vc4_vs_key local_key
;
2785 struct vc4_vs_key
*key
= &local_key
;
2787 if (!(vc4
->dirty
& (VC4_DIRTY_PRIM_MODE
|
2788 VC4_DIRTY_RASTERIZER
|
2790 VC4_DIRTY_VTXSTATE
|
2791 VC4_DIRTY_UNCOMPILED_VS
|
2792 VC4_DIRTY_FS_INPUTS
))) {
2796 memset(key
, 0, sizeof(*key
));
2797 vc4_setup_shared_key(vc4
, &key
->base
, &vc4
->verttex
);
2798 key
->base
.shader_state
= vc4
->prog
.bind_vs
;
2799 key
->fs_inputs
= vc4
->prog
.fs
->fs_inputs
;
2800 key
->clamp_color
= vc4
->rasterizer
->base
.clamp_vertex_color
;
2802 for (int i
= 0; i
< ARRAY_SIZE(key
->attr_formats
); i
++)
2803 key
->attr_formats
[i
] = vc4
->vtx
->pipe
[i
].src_format
;
2805 key
->per_vertex_point_size
=
2806 (prim_mode
== PIPE_PRIM_POINTS
&&
2807 vc4
->rasterizer
->base
.point_size_per_vertex
);
2809 struct vc4_compiled_shader
*vs
=
2810 vc4_get_compiled_shader(vc4
, QSTAGE_VERT
, &key
->base
);
2811 if (vs
!= vc4
->prog
.vs
) {
2813 vc4
->dirty
|= VC4_DIRTY_COMPILED_VS
;
2816 key
->is_coord
= true;
2817 /* Coord shaders don't care what the FS inputs are. */
2818 key
->fs_inputs
= NULL
;
2819 struct vc4_compiled_shader
*cs
=
2820 vc4_get_compiled_shader(vc4
, QSTAGE_COORD
, &key
->base
);
2821 if (cs
!= vc4
->prog
.cs
) {
2823 vc4
->dirty
|= VC4_DIRTY_COMPILED_CS
;
2828 vc4_update_compiled_shaders(struct vc4_context
*vc4
, uint8_t prim_mode
)
2830 vc4_update_compiled_fs(vc4
, prim_mode
);
2831 vc4_update_compiled_vs(vc4
, prim_mode
);
2833 return !(vc4
->prog
.cs
->failed
||
2834 vc4
->prog
.vs
->failed
||
2835 vc4
->prog
.fs
->failed
);
2839 fs_cache_hash(const void *key
)
2841 return _mesa_hash_data(key
, sizeof(struct vc4_fs_key
));
2845 vs_cache_hash(const void *key
)
2847 return _mesa_hash_data(key
, sizeof(struct vc4_vs_key
));
2851 fs_cache_compare(const void *key1
, const void *key2
)
2853 return memcmp(key1
, key2
, sizeof(struct vc4_fs_key
)) == 0;
2857 vs_cache_compare(const void *key1
, const void *key2
)
2859 return memcmp(key1
, key2
, sizeof(struct vc4_vs_key
)) == 0;
2863 fs_inputs_hash(const void *key
)
2865 const struct vc4_fs_inputs
*inputs
= key
;
2867 return _mesa_hash_data(inputs
->input_slots
,
2868 sizeof(*inputs
->input_slots
) *
2869 inputs
->num_inputs
);
2873 fs_inputs_compare(const void *key1
, const void *key2
)
2875 const struct vc4_fs_inputs
*inputs1
= key1
;
2876 const struct vc4_fs_inputs
*inputs2
= key2
;
2878 return (inputs1
->num_inputs
== inputs2
->num_inputs
&&
2879 memcmp(inputs1
->input_slots
,
2880 inputs2
->input_slots
,
2881 sizeof(*inputs1
->input_slots
) *
2882 inputs1
->num_inputs
) == 0);
2886 delete_from_cache_if_matches(struct hash_table
*ht
,
2887 struct vc4_compiled_shader
**last_compile
,
2888 struct hash_entry
*entry
,
2889 struct vc4_uncompiled_shader
*so
)
2891 const struct vc4_key
*key
= entry
->key
;
2893 if (key
->shader_state
== so
) {
2894 struct vc4_compiled_shader
*shader
= entry
->data
;
2895 _mesa_hash_table_remove(ht
, entry
);
2896 vc4_bo_unreference(&shader
->bo
);
2898 if (shader
== *last_compile
)
2899 *last_compile
= NULL
;
2901 ralloc_free(shader
);
2906 vc4_shader_state_delete(struct pipe_context
*pctx
, void *hwcso
)
2908 struct vc4_context
*vc4
= vc4_context(pctx
);
2909 struct vc4_uncompiled_shader
*so
= hwcso
;
2911 hash_table_foreach(vc4
->fs_cache
, entry
) {
2912 delete_from_cache_if_matches(vc4
->fs_cache
, &vc4
->prog
.fs
,
2915 hash_table_foreach(vc4
->vs_cache
, entry
) {
2916 delete_from_cache_if_matches(vc4
->vs_cache
, &vc4
->prog
.vs
,
2920 ralloc_free(so
->base
.ir
.nir
);
2925 vc4_fp_state_bind(struct pipe_context
*pctx
, void *hwcso
)
2927 struct vc4_context
*vc4
= vc4_context(pctx
);
2928 vc4
->prog
.bind_fs
= hwcso
;
2929 vc4
->dirty
|= VC4_DIRTY_UNCOMPILED_FS
;
2933 vc4_vp_state_bind(struct pipe_context
*pctx
, void *hwcso
)
2935 struct vc4_context
*vc4
= vc4_context(pctx
);
2936 vc4
->prog
.bind_vs
= hwcso
;
2937 vc4
->dirty
|= VC4_DIRTY_UNCOMPILED_VS
;
2941 vc4_program_init(struct pipe_context
*pctx
)
2943 struct vc4_context
*vc4
= vc4_context(pctx
);
2945 pctx
->create_vs_state
= vc4_shader_state_create
;
2946 pctx
->delete_vs_state
= vc4_shader_state_delete
;
2948 pctx
->create_fs_state
= vc4_shader_state_create
;
2949 pctx
->delete_fs_state
= vc4_shader_state_delete
;
2951 pctx
->bind_fs_state
= vc4_fp_state_bind
;
2952 pctx
->bind_vs_state
= vc4_vp_state_bind
;
2954 vc4
->fs_cache
= _mesa_hash_table_create(pctx
, fs_cache_hash
,
2956 vc4
->vs_cache
= _mesa_hash_table_create(pctx
, vs_cache_hash
,
2958 vc4
->fs_inputs_set
= _mesa_set_create(pctx
, fs_inputs_hash
,
2963 vc4_program_fini(struct pipe_context
*pctx
)
2965 struct vc4_context
*vc4
= vc4_context(pctx
);
2967 hash_table_foreach(vc4
->fs_cache
, entry
) {
2968 struct vc4_compiled_shader
*shader
= entry
->data
;
2969 vc4_bo_unreference(&shader
->bo
);
2970 ralloc_free(shader
);
2971 _mesa_hash_table_remove(vc4
->fs_cache
, entry
);
2974 hash_table_foreach(vc4
->vs_cache
, entry
) {
2975 struct vc4_compiled_shader
*shader
= entry
->data
;
2976 vc4_bo_unreference(&shader
->bo
);
2977 ralloc_free(shader
);
2978 _mesa_hash_table_remove(vc4
->vs_cache
, entry
);