2 * Copyright 2017 Advanced Micro Devices, Inc.
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
28 #include "util/u_format.h"
29 #include "util/u_pack_color.h"
30 #include "util/u_surface.h"
33 SI_CLEAR
= SI_SAVE_FRAGMENT_STATE
,
34 SI_CLEAR_SURFACE
= SI_SAVE_FRAMEBUFFER
| SI_SAVE_FRAGMENT_STATE
,
37 static void si_alloc_separate_cmask(struct si_screen
*sscreen
,
38 struct r600_texture
*rtex
)
40 if (rtex
->cmask_buffer
)
43 assert(rtex
->cmask
.size
== 0);
45 si_texture_get_cmask_info(sscreen
, rtex
, &rtex
->cmask
);
46 if (!rtex
->cmask
.size
)
50 si_aligned_buffer_create(&sscreen
->b
,
51 SI_RESOURCE_FLAG_UNMAPPABLE
,
54 rtex
->cmask
.alignment
);
55 if (rtex
->cmask_buffer
== NULL
) {
60 /* update colorbuffer state bits */
61 rtex
->cmask
.base_address_reg
= rtex
->cmask_buffer
->gpu_address
>> 8;
63 rtex
->cb_color_info
|= S_028C70_FAST_CLEAR(1);
65 p_atomic_inc(&sscreen
->compressed_colortex_counter
);
68 static void si_set_clear_color(struct r600_texture
*rtex
,
69 enum pipe_format surface_format
,
70 const union pipe_color_union
*color
)
74 memset(&uc
, 0, sizeof(uc
));
76 if (rtex
->surface
.bpe
== 16) {
77 /* DCC fast clear only:
78 * CLEAR_WORD0 = R = G = B
81 assert(color
->ui
[0] == color
->ui
[1] &&
82 color
->ui
[0] == color
->ui
[2]);
83 uc
.ui
[0] = color
->ui
[0];
84 uc
.ui
[1] = color
->ui
[3];
85 } else if (util_format_is_pure_uint(surface_format
)) {
86 util_format_write_4ui(surface_format
, color
->ui
, 0, &uc
, 0, 0, 0, 1, 1);
87 } else if (util_format_is_pure_sint(surface_format
)) {
88 util_format_write_4i(surface_format
, color
->i
, 0, &uc
, 0, 0, 0, 1, 1);
90 util_pack_color(color
->f
, surface_format
, &uc
);
93 memcpy(rtex
->color_clear_value
, &uc
, 2 * sizeof(uint32_t));
96 /** Linearize and convert luminace/intensity to red. */
97 enum pipe_format
si_simplify_cb_format(enum pipe_format format
)
99 format
= util_format_linear(format
);
100 format
= util_format_luminance_to_red(format
);
101 return util_format_intensity_to_red(format
);
104 bool vi_alpha_is_on_msb(enum pipe_format format
)
106 format
= si_simplify_cb_format(format
);
108 /* Formats with 3 channels can't have alpha. */
109 if (util_format_description(format
)->nr_channels
== 3)
110 return true; /* same as xxxA; is any value OK here? */
112 return si_translate_colorswap(format
, false) <= 1;
115 static bool vi_get_fast_clear_parameters(enum pipe_format base_format
,
116 enum pipe_format surface_format
,
117 const union pipe_color_union
*color
,
118 uint32_t* clear_value
,
119 bool *eliminate_needed
)
121 /* If we want to clear without needing a fast clear eliminate step, we
122 * can set color and alpha independently to 0 or 1 (or 0/max for integer
125 bool values
[4] = {}; /* whether to clear to 0 or 1 */
126 bool color_value
= false; /* clear color to 0 or 1 */
127 bool alpha_value
= false; /* clear alpha to 0 or 1 */
128 int alpha_channel
; /* index of the alpha component */
129 bool has_color
= false;
130 bool has_alpha
= false;
132 const struct util_format_description
*desc
=
133 util_format_description(si_simplify_cb_format(surface_format
));
135 /* 128-bit fast clear with different R,G,B values is unsupported. */
136 if (desc
->block
.bits
== 128 &&
137 (color
->ui
[0] != color
->ui
[1] ||
138 color
->ui
[0] != color
->ui
[2]))
141 *eliminate_needed
= true;
142 *clear_value
= 0x20202020U
; /* use CB clear color registers */
144 if (desc
->layout
!= UTIL_FORMAT_LAYOUT_PLAIN
)
145 return true; /* need ELIMINATE_FAST_CLEAR */
147 bool base_alpha_is_on_msb
= vi_alpha_is_on_msb(base_format
);
148 bool surf_alpha_is_on_msb
= vi_alpha_is_on_msb(surface_format
);
150 /* Formats with 3 channels can't have alpha. */
151 if (desc
->nr_channels
== 3)
153 else if (surf_alpha_is_on_msb
)
154 alpha_channel
= desc
->nr_channels
- 1;
158 for (int i
= 0; i
< 4; ++i
) {
159 if (desc
->swizzle
[i
] >= PIPE_SWIZZLE_0
)
162 if (desc
->channel
[i
].pure_integer
&&
163 desc
->channel
[i
].type
== UTIL_FORMAT_TYPE_SIGNED
) {
164 /* Use the maximum value for clamping the clear color. */
165 int max
= u_bit_consecutive(0, desc
->channel
[i
].size
- 1);
167 values
[i
] = color
->i
[i
] != 0;
168 if (color
->i
[i
] != 0 && MIN2(color
->i
[i
], max
) != max
)
169 return true; /* need ELIMINATE_FAST_CLEAR */
170 } else if (desc
->channel
[i
].pure_integer
&&
171 desc
->channel
[i
].type
== UTIL_FORMAT_TYPE_UNSIGNED
) {
172 /* Use the maximum value for clamping the clear color. */
173 unsigned max
= u_bit_consecutive(0, desc
->channel
[i
].size
);
175 values
[i
] = color
->ui
[i
] != 0U;
176 if (color
->ui
[i
] != 0U && MIN2(color
->ui
[i
], max
) != max
)
177 return true; /* need ELIMINATE_FAST_CLEAR */
179 values
[i
] = color
->f
[i
] != 0.0F
;
180 if (color
->f
[i
] != 0.0F
&& color
->f
[i
] != 1.0F
)
181 return true; /* need ELIMINATE_FAST_CLEAR */
184 if (desc
->swizzle
[i
] == alpha_channel
) {
185 alpha_value
= values
[i
];
188 color_value
= values
[i
];
193 /* If alpha isn't present, make it the same as color, and vice versa. */
195 alpha_value
= color_value
;
197 color_value
= alpha_value
;
199 if (color_value
!= alpha_value
&&
200 base_alpha_is_on_msb
!= surf_alpha_is_on_msb
)
201 return true; /* require ELIMINATE_FAST_CLEAR */
203 /* Check if all color values are equal if they are present. */
204 for (int i
= 0; i
< 4; ++i
) {
205 if (desc
->swizzle
[i
] <= PIPE_SWIZZLE_W
&&
206 desc
->swizzle
[i
] != alpha_channel
&&
207 values
[i
] != color_value
)
208 return true; /* require ELIMINATE_FAST_CLEAR */
211 /* This doesn't need ELIMINATE_FAST_CLEAR.
212 * CB uses both the DCC clear codes and the CB clear color registers,
213 * so they must match.
215 *eliminate_needed
= false;
218 *clear_value
|= 0x80808080U
;
220 *clear_value
|= 0x40404040U
;
224 void vi_dcc_clear_level(struct si_context
*sctx
,
225 struct r600_texture
*rtex
,
226 unsigned level
, unsigned clear_value
)
228 struct pipe_resource
*dcc_buffer
;
229 uint64_t dcc_offset
, clear_size
;
231 assert(vi_dcc_enabled(rtex
, level
));
233 if (rtex
->dcc_separate_buffer
) {
234 dcc_buffer
= &rtex
->dcc_separate_buffer
->b
.b
;
237 dcc_buffer
= &rtex
->resource
.b
.b
;
238 dcc_offset
= rtex
->dcc_offset
;
241 if (sctx
->chip_class
>= GFX9
) {
242 /* Mipmap level clears aren't implemented. */
243 assert(rtex
->resource
.b
.b
.last_level
== 0);
244 /* 4x and 8x MSAA needs a sophisticated compute shader for
245 * the clear. See AMDVLK. */
246 assert(rtex
->resource
.b
.b
.nr_samples
<= 2);
247 clear_size
= rtex
->surface
.dcc_size
;
249 unsigned num_layers
= util_num_layers(&rtex
->resource
.b
.b
, level
);
251 /* If this is 0, fast clear isn't possible. (can occur with MSAA) */
252 assert(rtex
->surface
.u
.legacy
.level
[level
].dcc_fast_clear_size
);
253 /* Layered 4x and 8x MSAA DCC fast clears need to clear
254 * dcc_fast_clear_size bytes for each layer. A compute shader
255 * would be more efficient than separate per-layer clear operations.
257 assert(rtex
->resource
.b
.b
.nr_samples
<= 2 || num_layers
== 1);
259 dcc_offset
+= rtex
->surface
.u
.legacy
.level
[level
].dcc_offset
;
260 clear_size
= rtex
->surface
.u
.legacy
.level
[level
].dcc_fast_clear_size
*
264 si_clear_buffer(sctx
, dcc_buffer
, dcc_offset
, clear_size
,
265 clear_value
, SI_COHERENCY_CB_META
);
268 /* Set the same micro tile mode as the destination of the last MSAA resolve.
269 * This allows hitting the MSAA resolve fast path, which requires that both
270 * src and dst micro tile modes match.
272 static void si_set_optimal_micro_tile_mode(struct si_screen
*sscreen
,
273 struct r600_texture
*rtex
)
275 if (rtex
->resource
.b
.is_shared
||
276 rtex
->resource
.b
.b
.nr_samples
<= 1 ||
277 rtex
->surface
.micro_tile_mode
== rtex
->last_msaa_resolve_target_micro_mode
)
280 assert(sscreen
->info
.chip_class
>= GFX9
||
281 rtex
->surface
.u
.legacy
.level
[0].mode
== RADEON_SURF_MODE_2D
);
282 assert(rtex
->resource
.b
.b
.last_level
== 0);
284 if (sscreen
->info
.chip_class
>= GFX9
) {
285 /* 4K or larger tiles only. 0 is linear. 1-3 are 256B tiles. */
286 assert(rtex
->surface
.u
.gfx9
.surf
.swizzle_mode
>= 4);
288 /* If you do swizzle_mode % 4, you'll get:
294 * Depth-sample order isn't allowed:
296 assert(rtex
->surface
.u
.gfx9
.surf
.swizzle_mode
% 4 != 0);
298 switch (rtex
->last_msaa_resolve_target_micro_mode
) {
299 case RADEON_MICRO_MODE_DISPLAY
:
300 rtex
->surface
.u
.gfx9
.surf
.swizzle_mode
&= ~0x3;
301 rtex
->surface
.u
.gfx9
.surf
.swizzle_mode
+= 2; /* D */
303 case RADEON_MICRO_MODE_THIN
:
304 rtex
->surface
.u
.gfx9
.surf
.swizzle_mode
&= ~0x3;
305 rtex
->surface
.u
.gfx9
.surf
.swizzle_mode
+= 1; /* S */
307 case RADEON_MICRO_MODE_ROTATED
:
308 rtex
->surface
.u
.gfx9
.surf
.swizzle_mode
&= ~0x3;
309 rtex
->surface
.u
.gfx9
.surf
.swizzle_mode
+= 3; /* R */
312 assert(!"unexpected micro mode");
315 } else if (sscreen
->info
.chip_class
>= CIK
) {
316 /* These magic numbers were copied from addrlib. It doesn't use
317 * any definitions for them either. They are all 2D_TILED_THIN1
318 * modes with different bpp and micro tile mode.
320 switch (rtex
->last_msaa_resolve_target_micro_mode
) {
321 case RADEON_MICRO_MODE_DISPLAY
:
322 rtex
->surface
.u
.legacy
.tiling_index
[0] = 10;
324 case RADEON_MICRO_MODE_THIN
:
325 rtex
->surface
.u
.legacy
.tiling_index
[0] = 14;
327 case RADEON_MICRO_MODE_ROTATED
:
328 rtex
->surface
.u
.legacy
.tiling_index
[0] = 28;
330 default: /* depth, thick */
331 assert(!"unexpected micro mode");
335 switch (rtex
->last_msaa_resolve_target_micro_mode
) {
336 case RADEON_MICRO_MODE_DISPLAY
:
337 switch (rtex
->surface
.bpe
) {
339 rtex
->surface
.u
.legacy
.tiling_index
[0] = 10;
342 rtex
->surface
.u
.legacy
.tiling_index
[0] = 11;
345 rtex
->surface
.u
.legacy
.tiling_index
[0] = 12;
349 case RADEON_MICRO_MODE_THIN
:
350 switch (rtex
->surface
.bpe
) {
352 rtex
->surface
.u
.legacy
.tiling_index
[0] = 14;
355 rtex
->surface
.u
.legacy
.tiling_index
[0] = 15;
358 rtex
->surface
.u
.legacy
.tiling_index
[0] = 16;
361 rtex
->surface
.u
.legacy
.tiling_index
[0] = 17;
365 default: /* depth, thick */
366 assert(!"unexpected micro mode");
371 rtex
->surface
.micro_tile_mode
= rtex
->last_msaa_resolve_target_micro_mode
;
373 p_atomic_inc(&sscreen
->dirty_tex_counter
);
376 static void si_do_fast_color_clear(struct si_context
*sctx
,
378 const union pipe_color_union
*color
)
380 struct pipe_framebuffer_state
*fb
= &sctx
->framebuffer
.state
;
383 /* This function is broken in BE, so just disable this path for now */
384 #ifdef PIPE_ARCH_BIG_ENDIAN
388 if (sctx
->render_cond
)
391 for (i
= 0; i
< fb
->nr_cbufs
; i
++) {
392 struct r600_texture
*tex
;
393 unsigned clear_bit
= PIPE_CLEAR_COLOR0
<< i
;
398 /* if this colorbuffer is not being cleared */
399 if (!(*buffers
& clear_bit
))
402 unsigned level
= fb
->cbufs
[i
]->u
.tex
.level
;
406 tex
= (struct r600_texture
*)fb
->cbufs
[i
]->texture
;
408 /* TODO: GFX9: Implement DCC fast clear for level 0 of
409 * mipmapped textures. Mipmapped DCC has to clear a rectangular
410 * area of DCC for level 0 (because the whole miptree is
411 * organized in a 2D plane).
413 if (sctx
->chip_class
>= GFX9
&&
414 tex
->resource
.b
.b
.last_level
> 0)
417 /* the clear is allowed if all layers are bound */
418 if (fb
->cbufs
[i
]->u
.tex
.first_layer
!= 0 ||
419 fb
->cbufs
[i
]->u
.tex
.last_layer
!= util_max_layer(&tex
->resource
.b
.b
, 0)) {
423 /* only supported on tiled surfaces */
424 if (tex
->surface
.is_linear
) {
428 /* shared textures can't use fast clear without an explicit flush,
429 * because there is no way to communicate the clear color among
432 if (tex
->resource
.b
.is_shared
&&
433 !(tex
->resource
.external_usage
& PIPE_HANDLE_USAGE_EXPLICIT_FLUSH
))
436 /* fast color clear with 1D tiling doesn't work on old kernels and CIK */
437 if (sctx
->chip_class
== CIK
&&
438 tex
->surface
.u
.legacy
.level
[0].mode
== RADEON_SURF_MODE_1D
&&
439 sctx
->screen
->info
.drm_major
== 2 &&
440 sctx
->screen
->info
.drm_minor
< 38) {
444 /* Fast clear is the most appropriate place to enable DCC for
445 * displayable surfaces.
447 if (sctx
->chip_class
>= VI
&&
448 !(sctx
->screen
->debug_flags
& DBG(NO_DCC_FB
))) {
449 vi_separate_dcc_try_enable(sctx
, tex
);
451 /* RB+ isn't supported with a CMASK clear only on Stoney,
452 * so all clears are considered to be hypothetically slow
453 * clears, which is weighed when determining whether to
454 * enable separate DCC.
456 if (tex
->dcc_gather_statistics
&&
457 sctx
->family
== CHIP_STONEY
)
458 tex
->num_slow_clears
++;
461 bool need_decompress_pass
= false;
463 /* Use a slow clear for small surfaces where the cost of
464 * the eliminate pass can be higher than the benefit of fast
465 * clear. The closed driver does this, but the numbers may differ.
467 * This helps on both dGPUs and APUs, even small APUs like Mullins.
469 bool too_small
= tex
->resource
.b
.b
.nr_samples
<= 1 &&
470 tex
->resource
.b
.b
.width0
*
471 tex
->resource
.b
.b
.height0
<= 512 * 512;
473 /* Try to clear DCC first, otherwise try CMASK. */
474 if (vi_dcc_enabled(tex
, 0)) {
475 uint32_t reset_value
;
476 bool eliminate_needed
;
478 if (sctx
->screen
->debug_flags
& DBG(NO_DCC_CLEAR
))
481 /* This can only occur with MSAA. */
482 if (sctx
->chip_class
== VI
&&
483 !tex
->surface
.u
.legacy
.level
[level
].dcc_fast_clear_size
)
486 if (!vi_get_fast_clear_parameters(tex
->resource
.b
.b
.format
,
487 fb
->cbufs
[i
]->format
,
492 if (eliminate_needed
&& too_small
)
495 /* DCC fast clear with MSAA should clear CMASK to 0xC. */
496 if (tex
->resource
.b
.b
.nr_samples
>= 2 && tex
->cmask
.size
) {
497 /* TODO: This doesn't work with MSAA. */
498 if (eliminate_needed
)
501 si_clear_buffer(sctx
, &tex
->cmask_buffer
->b
.b
,
502 tex
->cmask
.offset
, tex
->cmask
.size
,
503 0xCCCCCCCC, SI_COHERENCY_CB_META
);
504 need_decompress_pass
= true;
507 vi_dcc_clear_level(sctx
, tex
, 0, reset_value
);
509 if (eliminate_needed
)
510 need_decompress_pass
= true;
512 tex
->separate_dcc_dirty
= true;
517 /* 128-bit formats are unusupported */
518 if (tex
->surface
.bpe
> 8) {
522 /* RB+ doesn't work with CMASK fast clear on Stoney. */
523 if (sctx
->family
== CHIP_STONEY
)
526 /* ensure CMASK is enabled */
527 si_alloc_separate_cmask(sctx
->screen
, tex
);
528 if (tex
->cmask
.size
== 0) {
532 /* Do the fast clear. */
533 si_clear_buffer(sctx
, &tex
->cmask_buffer
->b
.b
,
534 tex
->cmask
.offset
, tex
->cmask
.size
, 0,
535 SI_COHERENCY_CB_META
);
536 need_decompress_pass
= true;
539 if (need_decompress_pass
&&
540 !(tex
->dirty_level_mask
& (1 << level
))) {
541 tex
->dirty_level_mask
|= 1 << level
;
542 p_atomic_inc(&sctx
->screen
->compressed_colortex_counter
);
545 /* We can change the micro tile mode before a full clear. */
546 si_set_optimal_micro_tile_mode(sctx
->screen
, tex
);
548 si_set_clear_color(tex
, fb
->cbufs
[i
]->format
, color
);
550 sctx
->framebuffer
.dirty_cbufs
|= 1 << i
;
551 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.framebuffer
);
552 *buffers
&= ~clear_bit
;
556 static void si_clear(struct pipe_context
*ctx
, unsigned buffers
,
557 const union pipe_color_union
*color
,
558 double depth
, unsigned stencil
)
560 struct si_context
*sctx
= (struct si_context
*)ctx
;
561 struct pipe_framebuffer_state
*fb
= &sctx
->framebuffer
.state
;
562 struct pipe_surface
*zsbuf
= fb
->zsbuf
;
563 struct r600_texture
*zstex
=
564 zsbuf
? (struct r600_texture
*)zsbuf
->texture
: NULL
;
566 if (buffers
& PIPE_CLEAR_COLOR
) {
567 si_do_fast_color_clear(sctx
, &buffers
, color
);
569 return; /* all buffers have been fast cleared */
571 /* These buffers cannot use fast clear, make sure to disable expansion. */
572 for (unsigned i
= 0; i
< fb
->nr_cbufs
; i
++) {
573 struct r600_texture
*tex
;
575 /* If not clearing this buffer, skip. */
576 if (!(buffers
& (PIPE_CLEAR_COLOR0
<< i
)) || !fb
->cbufs
[i
])
579 tex
= (struct r600_texture
*)fb
->cbufs
[i
]->texture
;
580 if (tex
->fmask
.size
== 0)
581 tex
->dirty_level_mask
&= ~(1 << fb
->cbufs
[i
]->u
.tex
.level
);
586 si_htile_enabled(zstex
, zsbuf
->u
.tex
.level
) &&
587 zsbuf
->u
.tex
.first_layer
== 0 &&
588 zsbuf
->u
.tex
.last_layer
== util_max_layer(&zstex
->resource
.b
.b
, 0)) {
589 /* TC-compatible HTILE only supports depth clears to 0 or 1. */
590 if (buffers
& PIPE_CLEAR_DEPTH
&&
591 (!zstex
->tc_compatible_htile
||
592 depth
== 0 || depth
== 1)) {
593 /* Need to disable EXPCLEAR temporarily if clearing
595 if (!zstex
->depth_cleared
|| zstex
->depth_clear_value
!= depth
) {
596 sctx
->db_depth_disable_expclear
= true;
599 zstex
->depth_clear_value
= depth
;
600 sctx
->framebuffer
.dirty_zsbuf
= true;
601 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.framebuffer
); /* updates DB_DEPTH_CLEAR */
602 sctx
->db_depth_clear
= true;
603 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.db_render_state
);
606 /* TC-compatible HTILE only supports stencil clears to 0. */
607 if (buffers
& PIPE_CLEAR_STENCIL
&&
608 (!zstex
->tc_compatible_htile
|| stencil
== 0)) {
611 /* Need to disable EXPCLEAR temporarily if clearing
613 if (!zstex
->stencil_cleared
|| zstex
->stencil_clear_value
!= stencil
) {
614 sctx
->db_stencil_disable_expclear
= true;
617 zstex
->stencil_clear_value
= stencil
;
618 sctx
->framebuffer
.dirty_zsbuf
= true;
619 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.framebuffer
); /* updates DB_STENCIL_CLEAR */
620 sctx
->db_stencil_clear
= true;
621 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.db_render_state
);
624 /* TODO: Find out what's wrong here. Fast depth clear leads to
625 * corruption in ARK: Survival Evolved, but that may just be
626 * a coincidence and the root cause is elsewhere.
628 * The corruption can be fixed by putting the DB flush before
629 * or after the depth clear. (surprisingly)
631 * https://bugs.freedesktop.org/show_bug.cgi?id=102955 (apitrace)
633 * This hack decreases back-to-back ClearDepth performance.
635 if ((sctx
->db_depth_clear
|| sctx
->db_stencil_clear
) &&
636 sctx
->screen
->clear_db_cache_before_clear
)
637 sctx
->flags
|= SI_CONTEXT_FLUSH_AND_INV_DB
;
640 si_blitter_begin(sctx
, SI_CLEAR
);
641 util_blitter_clear(sctx
->blitter
, fb
->width
, fb
->height
,
642 util_framebuffer_get_num_layers(fb
),
643 buffers
, color
, depth
, stencil
);
644 si_blitter_end(sctx
);
646 if (sctx
->db_depth_clear
) {
647 sctx
->db_depth_clear
= false;
648 sctx
->db_depth_disable_expclear
= false;
649 zstex
->depth_cleared
= true;
650 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.db_render_state
);
653 if (sctx
->db_stencil_clear
) {
654 sctx
->db_stencil_clear
= false;
655 sctx
->db_stencil_disable_expclear
= false;
656 zstex
->stencil_cleared
= true;
657 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.db_render_state
);
661 static void si_clear_render_target(struct pipe_context
*ctx
,
662 struct pipe_surface
*dst
,
663 const union pipe_color_union
*color
,
664 unsigned dstx
, unsigned dsty
,
665 unsigned width
, unsigned height
,
666 bool render_condition_enabled
)
668 struct si_context
*sctx
= (struct si_context
*)ctx
;
670 si_blitter_begin(sctx
, SI_CLEAR_SURFACE
|
671 (render_condition_enabled
? 0 : SI_DISABLE_RENDER_COND
));
672 util_blitter_clear_render_target(sctx
->blitter
, dst
, color
,
673 dstx
, dsty
, width
, height
);
674 si_blitter_end(sctx
);
677 static void si_clear_depth_stencil(struct pipe_context
*ctx
,
678 struct pipe_surface
*dst
,
679 unsigned clear_flags
,
682 unsigned dstx
, unsigned dsty
,
683 unsigned width
, unsigned height
,
684 bool render_condition_enabled
)
686 struct si_context
*sctx
= (struct si_context
*)ctx
;
688 si_blitter_begin(sctx
, SI_CLEAR_SURFACE
|
689 (render_condition_enabled
? 0 : SI_DISABLE_RENDER_COND
));
690 util_blitter_clear_depth_stencil(sctx
->blitter
, dst
, clear_flags
, depth
, stencil
,
691 dstx
, dsty
, width
, height
);
692 si_blitter_end(sctx
);
695 static void si_clear_texture(struct pipe_context
*pipe
,
696 struct pipe_resource
*tex
,
698 const struct pipe_box
*box
,
701 struct pipe_screen
*screen
= pipe
->screen
;
702 struct r600_texture
*rtex
= (struct r600_texture
*)tex
;
703 struct pipe_surface tmpl
= {{0}};
704 struct pipe_surface
*sf
;
705 const struct util_format_description
*desc
=
706 util_format_description(tex
->format
);
708 tmpl
.format
= tex
->format
;
709 tmpl
.u
.tex
.first_layer
= box
->z
;
710 tmpl
.u
.tex
.last_layer
= box
->z
+ box
->depth
- 1;
711 tmpl
.u
.tex
.level
= level
;
712 sf
= pipe
->create_surface(pipe
, tex
, &tmpl
);
716 if (rtex
->is_depth
) {
721 /* Depth is always present. */
722 clear
= PIPE_CLEAR_DEPTH
;
723 desc
->unpack_z_float(&depth
, 0, data
, 0, 1, 1);
725 if (rtex
->surface
.has_stencil
) {
726 clear
|= PIPE_CLEAR_STENCIL
;
727 desc
->unpack_s_8uint(&stencil
, 0, data
, 0, 1, 1);
730 si_clear_depth_stencil(pipe
, sf
, clear
, depth
, stencil
,
732 box
->width
, box
->height
, false);
734 union pipe_color_union color
;
736 /* pipe_color_union requires the full vec4 representation. */
737 if (util_format_is_pure_uint(tex
->format
))
738 desc
->unpack_rgba_uint(color
.ui
, 0, data
, 0, 1, 1);
739 else if (util_format_is_pure_sint(tex
->format
))
740 desc
->unpack_rgba_sint(color
.i
, 0, data
, 0, 1, 1);
742 desc
->unpack_rgba_float(color
.f
, 0, data
, 0, 1, 1);
744 if (screen
->is_format_supported(screen
, tex
->format
,
746 PIPE_BIND_RENDER_TARGET
)) {
747 si_clear_render_target(pipe
, sf
, &color
,
749 box
->width
, box
->height
, false);
751 /* Software fallback - just for R9G9B9E5_FLOAT */
752 util_clear_render_target(pipe
, sf
, &color
,
754 box
->width
, box
->height
);
757 pipe_surface_reference(&sf
, NULL
);
760 void si_init_clear_functions(struct si_context
*sctx
)
762 sctx
->b
.clear
= si_clear
;
763 sctx
->b
.clear_render_target
= si_clear_render_target
;
764 sctx
->b
.clear_depth_stencil
= si_clear_depth_stencil
;
765 sctx
->b
.clear_texture
= si_clear_texture
;