2 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23 #include "r300_context.h"
24 #include "r300_emit.h"
25 #include "r300_texture.h"
28 #include "util/format/u_format.h"
29 #include "util/u_half.h"
30 #include "util/u_pack_color.h"
31 #include "util/u_surface.h"
33 enum r300_blitter_op
/* bitmask */
36 R300_SAVE_TEXTURES
= 2,
37 R300_SAVE_FRAMEBUFFER
= 4,
38 R300_IGNORE_RENDER_COND
= 8,
40 R300_CLEAR
= R300_STOP_QUERY
,
42 R300_CLEAR_SURFACE
= R300_STOP_QUERY
| R300_SAVE_FRAMEBUFFER
,
44 R300_COPY
= R300_STOP_QUERY
| R300_SAVE_FRAMEBUFFER
|
45 R300_SAVE_TEXTURES
| R300_IGNORE_RENDER_COND
,
47 R300_BLIT
= R300_STOP_QUERY
| R300_SAVE_FRAMEBUFFER
|
50 R300_DECOMPRESS
= R300_STOP_QUERY
| R300_IGNORE_RENDER_COND
,
53 static void r300_blitter_begin(struct r300_context
* r300
, enum r300_blitter_op op
)
55 if ((op
& R300_STOP_QUERY
) && r300
->query_current
) {
56 r300
->blitter_saved_query
= r300
->query_current
;
57 r300_stop_query(r300
);
60 /* Yeah we have to save all those states to ensure the blitter operation
61 * is really transparent. The states will be restored by the blitter once
63 util_blitter_save_blend(r300
->blitter
, r300
->blend_state
.state
);
64 util_blitter_save_depth_stencil_alpha(r300
->blitter
, r300
->dsa_state
.state
);
65 util_blitter_save_stencil_ref(r300
->blitter
, &(r300
->stencil_ref
));
66 util_blitter_save_rasterizer(r300
->blitter
, r300
->rs_state
.state
);
67 util_blitter_save_fragment_shader(r300
->blitter
, r300
->fs
.state
);
68 util_blitter_save_vertex_shader(r300
->blitter
, r300
->vs_state
.state
);
69 util_blitter_save_viewport(r300
->blitter
, &r300
->viewport
);
70 util_blitter_save_scissor(r300
->blitter
, r300
->scissor_state
.state
);
71 util_blitter_save_sample_mask(r300
->blitter
, *(unsigned*)r300
->sample_mask
.state
);
72 util_blitter_save_vertex_buffer_slot(r300
->blitter
, r300
->vertex_buffer
);
73 util_blitter_save_vertex_elements(r300
->blitter
, r300
->velems
);
75 if (op
& R300_SAVE_FRAMEBUFFER
) {
76 util_blitter_save_framebuffer(r300
->blitter
, r300
->fb_state
.state
);
79 if (op
& R300_SAVE_TEXTURES
) {
80 struct r300_textures_state
* state
=
81 (struct r300_textures_state
*)r300
->textures_state
.state
;
83 util_blitter_save_fragment_sampler_states(
84 r300
->blitter
, state
->sampler_state_count
,
85 (void**)state
->sampler_states
);
87 util_blitter_save_fragment_sampler_views(
88 r300
->blitter
, state
->sampler_view_count
,
89 (struct pipe_sampler_view
**)state
->sampler_views
);
92 if (op
& R300_IGNORE_RENDER_COND
) {
94 r300
->blitter_saved_skip_rendering
= r300
->skip_rendering
+1;
95 r300
->skip_rendering
= FALSE
;
97 r300
->blitter_saved_skip_rendering
= 0;
101 static void r300_blitter_end(struct r300_context
*r300
)
103 if (r300
->blitter_saved_query
) {
104 r300_resume_query(r300
, r300
->blitter_saved_query
);
105 r300
->blitter_saved_query
= NULL
;
108 if (r300
->blitter_saved_skip_rendering
) {
109 /* Restore the flag. */
110 r300
->skip_rendering
= r300
->blitter_saved_skip_rendering
-1;
114 static uint32_t r300_depth_clear_cb_value(enum pipe_format format
,
118 util_pack_color(rgba
, format
, &uc
);
120 if (util_format_get_blocksizebits(format
) == 32)
123 return uc
.us
| (uc
.us
<< 16);
126 static boolean
r300_cbzb_clear_allowed(struct r300_context
*r300
,
127 unsigned clear_buffers
)
129 struct pipe_framebuffer_state
*fb
=
130 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
132 /* Only color clear allowed, and only one colorbuffer. */
133 if ((clear_buffers
& ~PIPE_CLEAR_COLOR
) != 0 || fb
->nr_cbufs
!= 1 || !fb
->cbufs
[0])
136 return r300_surface(fb
->cbufs
[0])->cbzb_allowed
;
139 static boolean
r300_fast_zclear_allowed(struct r300_context
*r300
,
140 unsigned clear_buffers
)
142 struct pipe_framebuffer_state
*fb
=
143 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
145 return r300_resource(fb
->zsbuf
->texture
)->tex
.zmask_dwords
[fb
->zsbuf
->u
.tex
.level
] != 0;
148 static boolean
r300_hiz_clear_allowed(struct r300_context
*r300
)
150 struct pipe_framebuffer_state
*fb
=
151 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
153 return r300_resource(fb
->zsbuf
->texture
)->tex
.hiz_dwords
[fb
->zsbuf
->u
.tex
.level
] != 0;
156 static uint32_t r300_depth_clear_value(enum pipe_format format
,
157 double depth
, unsigned stencil
)
160 case PIPE_FORMAT_Z16_UNORM
:
161 case PIPE_FORMAT_X8Z24_UNORM
:
162 return util_pack_z(format
, depth
);
164 case PIPE_FORMAT_S8_UINT_Z24_UNORM
:
165 return util_pack_z_stencil(format
, depth
, stencil
);
173 static uint32_t r300_hiz_clear_value(double depth
)
175 uint32_t r
= (uint32_t)(CLAMP(depth
, 0, 1) * 255.5);
177 return r
| (r
<< 8) | (r
<< 16) | (r
<< 24);
180 static void r300_set_clear_color(struct r300_context
*r300
,
181 const union pipe_color_union
*color
)
183 struct pipe_framebuffer_state
*fb
=
184 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
187 memset(&uc
, 0, sizeof(uc
));
188 util_pack_color(color
->f
, fb
->cbufs
[0]->format
, &uc
);
190 if (fb
->cbufs
[0]->format
== PIPE_FORMAT_R16G16B16A16_FLOAT
||
191 fb
->cbufs
[0]->format
== PIPE_FORMAT_R16G16B16X16_FLOAT
) {
192 /* (0,1,2,3) maps to (B,G,R,A) */
193 r300
->color_clear_value_gb
= uc
.h
[0] | ((uint32_t)uc
.h
[1] << 16);
194 r300
->color_clear_value_ar
= uc
.h
[2] | ((uint32_t)uc
.h
[3] << 16);
196 r300
->color_clear_value
= uc
.ui
[0];
200 DEBUG_GET_ONCE_BOOL_OPTION(hyperz
, "RADEON_HYPERZ", FALSE
)
202 /* Clear currently bound buffers. */
203 static void r300_clear(struct pipe_context
* pipe
,
205 const struct pipe_scissor_state
*scissor_state
,
206 const union pipe_color_union
*color
,
210 /* My notes about Zbuffer compression:
212 * 1) The zbuffer must be micro-tiled and whole microtiles must be
213 * written if compression is enabled. If microtiling is disabled,
216 * 2) There is ZMASK RAM which contains a compressed zbuffer.
217 * Each dword of the Z Mask contains compression information
218 * for 16 4x4 pixel tiles, that is 2 bits for each tile.
219 * On chips with 2 Z pipes, every other dword maps to a different
220 * pipe. On newer chipsets, there is a new compression mode
221 * with 8x8 pixel tiles per 2 bits.
223 * 3) The FASTFILL bit has nothing to do with filling. It only tells hw
224 * it should look in the ZMASK RAM first before fetching from a real
227 * 4) If a pixel is in a cleared state, ZB_DEPTHCLEARVALUE is returned
228 * during zbuffer reads instead of the value that is actually stored
229 * in the zbuffer memory. A pixel is in a cleared state when its ZMASK
230 * is equal to 0. Therefore, if you clear ZMASK with zeros, you may
231 * leave the zbuffer memory uninitialized, but then you must enable
232 * compression, so that the ZMASK RAM is actually used.
234 * 5) Each 4x4 (or 8x8) tile is automatically decompressed and recompressed
235 * during zbuffer updates. A special decompressing operation should be
236 * used to fully decompress a zbuffer, which basically just stores all
237 * compressed tiles in ZMASK to the zbuffer memory.
239 * 6) For a 16-bit zbuffer, compression causes a hung with one or
240 * two samples and should not be used.
242 * 7) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears
243 * to avoid needless decompression.
245 * 8) Fastfill must not be used if reading of compressed Z data is disabled
246 * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
247 * i.e. it cannot be used to compress the zbuffer.
249 * 9) ZB_CB_CLEAR does not interact with zbuffer compression in any way.
254 struct r300_context
* r300
= r300_context(pipe
);
255 struct pipe_framebuffer_state
*fb
=
256 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
257 struct r300_hyperz_state
*hyperz
=
258 (struct r300_hyperz_state
*)r300
->hyperz_state
.state
;
259 uint32_t width
= fb
->width
;
260 uint32_t height
= fb
->height
;
261 uint32_t hyperz_dcv
= hyperz
->zb_depthclearvalue
;
264 * The zbuffer must be in micro-tiled mode, otherwise it locks up. */
265 if (buffers
& PIPE_CLEAR_DEPTHSTENCIL
) {
266 boolean zmask_clear
, hiz_clear
;
268 /* If both depth and stencil are present, they must be cleared together. */
269 if (fb
->zsbuf
->texture
->format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
&&
270 (buffers
& PIPE_CLEAR_DEPTHSTENCIL
) != PIPE_CLEAR_DEPTHSTENCIL
) {
274 zmask_clear
= r300_fast_zclear_allowed(r300
, buffers
);
275 hiz_clear
= r300_hiz_clear_allowed(r300
);
278 /* If we need Hyper-Z. */
279 if (zmask_clear
|| hiz_clear
) {
280 /* Try to obtain the access to Hyper-Z buffers if we don't have one. */
281 if (!r300
->hyperz_enabled
&&
282 (r300
->screen
->caps
.is_r500
|| debug_get_option_hyperz())) {
283 r300
->hyperz_enabled
=
284 r300
->rws
->cs_request_feature(r300
->cs
,
285 RADEON_FID_R300_HYPERZ_ACCESS
,
287 if (r300
->hyperz_enabled
) {
288 /* Need to emit HyperZ buffer regs for the first time. */
289 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
293 /* Setup Hyper-Z clears. */
294 if (r300
->hyperz_enabled
) {
296 hyperz_dcv
= hyperz
->zb_depthclearvalue
=
297 r300_depth_clear_value(fb
->zsbuf
->format
, depth
, stencil
);
299 r300_mark_atom_dirty(r300
, &r300
->zmask_clear
);
300 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
301 buffers
&= ~PIPE_CLEAR_DEPTHSTENCIL
;
305 r300
->hiz_clear_value
= r300_hiz_clear_value(depth
);
306 r300_mark_atom_dirty(r300
, &r300
->hiz_clear
);
307 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
309 r300
->num_z_clears
++;
314 /* Use fast color clear for an AA colorbuffer.
315 * The CMASK is shared between all colorbuffers, so we use it
316 * if there is only one colorbuffer bound. */
317 if ((buffers
& PIPE_CLEAR_COLOR
) && fb
->nr_cbufs
== 1 && fb
->cbufs
[0] &&
318 r300_resource(fb
->cbufs
[0]->texture
)->tex
.cmask_dwords
) {
319 /* Try to obtain the access to the CMASK if we don't have one. */
320 if (!r300
->cmask_access
) {
322 r300
->rws
->cs_request_feature(r300
->cs
,
323 RADEON_FID_R300_CMASK_ACCESS
,
327 /* Setup the clear. */
328 if (r300
->cmask_access
) {
329 /* Pair the resource with the CMASK to avoid other resources
331 if (!r300
->screen
->cmask_resource
) {
332 mtx_lock(&r300
->screen
->cmask_mutex
);
333 /* Double checking (first unlocked, then locked). */
334 if (!r300
->screen
->cmask_resource
) {
335 /* Don't reference this, so that the texture can be
336 * destroyed while set in cmask_resource.
337 * Then in texture_destroy, we set cmask_resource to NULL. */
338 r300
->screen
->cmask_resource
= fb
->cbufs
[0]->texture
;
340 mtx_unlock(&r300
->screen
->cmask_mutex
);
343 if (r300
->screen
->cmask_resource
== fb
->cbufs
[0]->texture
) {
344 r300_set_clear_color(r300
, color
);
345 r300_mark_atom_dirty(r300
, &r300
->cmask_clear
);
346 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
347 buffers
&= ~PIPE_CLEAR_COLOR
;
351 /* Enable CBZB clear. */
352 else if (r300_cbzb_clear_allowed(r300
, buffers
)) {
353 struct r300_surface
*surf
= r300_surface(fb
->cbufs
[0]);
355 hyperz
->zb_depthclearvalue
=
356 r300_depth_clear_cb_value(surf
->base
.format
, color
->f
);
358 width
= surf
->cbzb_width
;
359 height
= surf
->cbzb_height
;
361 r300
->cbzb_clear
= TRUE
;
362 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
367 /* Clear using the blitter. */
368 r300_blitter_begin(r300
, R300_CLEAR
);
369 util_blitter_clear(r300
->blitter
, width
, height
, 1,
370 buffers
, color
, depth
, stencil
,
371 util_framebuffer_get_num_samples(fb
) > 1);
372 r300_blitter_end(r300
);
373 } else if (r300
->zmask_clear
.dirty
||
374 r300
->hiz_clear
.dirty
||
375 r300
->cmask_clear
.dirty
) {
376 /* Just clear zmask and hiz now, this does not use the standard draw
378 /* Calculate zmask_clear and hiz_clear atom sizes. */
380 r300
->gpu_flush
.size
+
381 (r300
->zmask_clear
.dirty
? r300
->zmask_clear
.size
: 0) +
382 (r300
->hiz_clear
.dirty
? r300
->hiz_clear
.size
: 0) +
383 (r300
->cmask_clear
.dirty
? r300
->cmask_clear
.size
: 0) +
384 r300_get_num_cs_end_dwords(r300
);
386 /* Reserve CS space. */
387 if (!r300
->rws
->cs_check_space(r300
->cs
, dwords
, false)) {
388 r300_flush(&r300
->context
, PIPE_FLUSH_ASYNC
, NULL
);
391 /* Emit clear packets. */
392 r300_emit_gpu_flush(r300
, r300
->gpu_flush
.size
, r300
->gpu_flush
.state
);
393 r300
->gpu_flush
.dirty
= FALSE
;
395 if (r300
->zmask_clear
.dirty
) {
396 r300_emit_zmask_clear(r300
, r300
->zmask_clear
.size
,
397 r300
->zmask_clear
.state
);
398 r300
->zmask_clear
.dirty
= FALSE
;
400 if (r300
->hiz_clear
.dirty
) {
401 r300_emit_hiz_clear(r300
, r300
->hiz_clear
.size
,
402 r300
->hiz_clear
.state
);
403 r300
->hiz_clear
.dirty
= FALSE
;
405 if (r300
->cmask_clear
.dirty
) {
406 r300_emit_cmask_clear(r300
, r300
->cmask_clear
.size
,
407 r300
->cmask_clear
.state
);
408 r300
->cmask_clear
.dirty
= FALSE
;
414 /* Disable CBZB clear. */
415 if (r300
->cbzb_clear
) {
416 r300
->cbzb_clear
= FALSE
;
417 hyperz
->zb_depthclearvalue
= hyperz_dcv
;
418 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
421 /* Enable fastfill and/or hiz.
423 * If we cleared zmask/hiz, it's in use now. The Hyper-Z state update
424 * looks if zmask/hiz is in use and programs hardware accordingly. */
425 if (r300
->zmask_in_use
|| r300
->hiz_in_use
) {
426 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
430 /* Clear a region of a color surface to a constant value. */
431 static void r300_clear_render_target(struct pipe_context
*pipe
,
432 struct pipe_surface
*dst
,
433 const union pipe_color_union
*color
,
434 unsigned dstx
, unsigned dsty
,
435 unsigned width
, unsigned height
,
436 bool render_condition_enabled
)
438 struct r300_context
*r300
= r300_context(pipe
);
440 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
|
441 (render_condition_enabled
? 0 : R300_IGNORE_RENDER_COND
));
442 util_blitter_clear_render_target(r300
->blitter
, dst
, color
,
443 dstx
, dsty
, width
, height
);
444 r300_blitter_end(r300
);
447 /* Clear a region of a depth stencil surface. */
448 static void r300_clear_depth_stencil(struct pipe_context
*pipe
,
449 struct pipe_surface
*dst
,
450 unsigned clear_flags
,
453 unsigned dstx
, unsigned dsty
,
454 unsigned width
, unsigned height
,
455 bool render_condition_enabled
)
457 struct r300_context
*r300
= r300_context(pipe
);
458 struct pipe_framebuffer_state
*fb
=
459 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
461 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
462 if (fb
->zsbuf
->texture
== dst
->texture
) {
463 r300_decompress_zmask(r300
);
467 /* XXX Do not decompress ZMask of the currently-set zbuffer. */
468 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
|
469 (render_condition_enabled
? 0 : R300_IGNORE_RENDER_COND
));
470 util_blitter_clear_depth_stencil(r300
->blitter
, dst
, clear_flags
, depth
, stencil
,
471 dstx
, dsty
, width
, height
);
472 r300_blitter_end(r300
);
475 void r300_decompress_zmask(struct r300_context
*r300
)
477 struct pipe_framebuffer_state
*fb
=
478 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
480 if (!r300
->zmask_in_use
|| r300
->locked_zbuffer
)
483 r300
->zmask_decompress
= TRUE
;
484 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
486 r300_blitter_begin(r300
, R300_DECOMPRESS
);
487 util_blitter_custom_clear_depth(r300
->blitter
, fb
->width
, fb
->height
, 0,
488 r300
->dsa_decompress_zmask
);
489 r300_blitter_end(r300
);
491 r300
->zmask_decompress
= FALSE
;
492 r300
->zmask_in_use
= FALSE
;
493 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
496 void r300_decompress_zmask_locked_unsafe(struct r300_context
*r300
)
498 struct pipe_framebuffer_state fb
;
500 memset(&fb
, 0, sizeof(fb
));
501 fb
.width
= r300
->locked_zbuffer
->width
;
502 fb
.height
= r300
->locked_zbuffer
->height
;
503 fb
.zsbuf
= r300
->locked_zbuffer
;
505 r300
->context
.set_framebuffer_state(&r300
->context
, &fb
);
506 r300_decompress_zmask(r300
);
509 void r300_decompress_zmask_locked(struct r300_context
*r300
)
511 struct pipe_framebuffer_state saved_fb
;
513 memset(&saved_fb
, 0, sizeof(saved_fb
));
514 util_copy_framebuffer_state(&saved_fb
, r300
->fb_state
.state
);
515 r300_decompress_zmask_locked_unsafe(r300
);
516 r300
->context
.set_framebuffer_state(&r300
->context
, &saved_fb
);
517 util_unreference_framebuffer_state(&saved_fb
);
519 pipe_surface_reference(&r300
->locked_zbuffer
, NULL
);
522 bool r300_is_blit_supported(enum pipe_format format
)
524 const struct util_format_description
*desc
=
525 util_format_description(format
);
527 return desc
->layout
== UTIL_FORMAT_LAYOUT_PLAIN
||
528 desc
->layout
== UTIL_FORMAT_LAYOUT_S3TC
||
529 desc
->layout
== UTIL_FORMAT_LAYOUT_RGTC
;
532 /* Copy a block of pixels from one surface to another. */
533 static void r300_resource_copy_region(struct pipe_context
*pipe
,
534 struct pipe_resource
*dst
,
536 unsigned dstx
, unsigned dsty
, unsigned dstz
,
537 struct pipe_resource
*src
,
539 const struct pipe_box
*src_box
)
541 struct pipe_screen
*screen
= pipe
->screen
;
542 struct r300_context
*r300
= r300_context(pipe
);
543 struct pipe_framebuffer_state
*fb
=
544 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
545 unsigned src_width0
= r300_resource(src
)->tex
.width0
;
546 unsigned src_height0
= r300_resource(src
)->tex
.height0
;
547 unsigned dst_width0
= r300_resource(dst
)->tex
.width0
;
548 unsigned dst_height0
= r300_resource(dst
)->tex
.height0
;
550 struct pipe_box box
, dstbox
;
551 struct pipe_sampler_view src_templ
, *src_view
;
552 struct pipe_surface dst_templ
, *dst_view
;
554 /* Fallback for buffers. */
555 if ((dst
->target
== PIPE_BUFFER
&& src
->target
== PIPE_BUFFER
) ||
556 !r300_is_blit_supported(dst
->format
)) {
557 util_resource_copy_region(pipe
, dst
, dst_level
, dstx
, dsty
, dstz
,
558 src
, src_level
, src_box
);
562 /* Can't read MSAA textures. */
563 if (src
->nr_samples
> 1 || dst
->nr_samples
> 1) {
567 /* The code below changes the texture format so that the copy can be done
568 * on hardware. E.g. depth-stencil surfaces are copied as RGBA
571 util_blitter_default_dst_texture(&dst_templ
, dst
, dst_level
, dstz
);
572 util_blitter_default_src_texture(r300
->blitter
, &src_templ
, src
, src_level
);
574 layout
= util_format_description(dst_templ
.format
)->layout
;
576 /* Handle non-renderable plain formats. */
577 if (layout
== UTIL_FORMAT_LAYOUT_PLAIN
&&
578 (!screen
->is_format_supported(screen
, src_templ
.format
, src
->target
,
579 src
->nr_samples
, src
->nr_storage_samples
,
580 PIPE_BIND_SAMPLER_VIEW
) ||
581 !screen
->is_format_supported(screen
, dst_templ
.format
, dst
->target
,
582 dst
->nr_samples
, dst
->nr_storage_samples
,
583 PIPE_BIND_RENDER_TARGET
))) {
584 switch (util_format_get_blocksize(dst_templ
.format
)) {
586 dst_templ
.format
= PIPE_FORMAT_I8_UNORM
;
589 dst_templ
.format
= PIPE_FORMAT_B4G4R4A4_UNORM
;
592 dst_templ
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
595 dst_templ
.format
= PIPE_FORMAT_R16G16B16A16_UNORM
;
598 debug_printf("r300: copy_region: Unhandled format: %s. Falling back to software.\n"
599 "r300: copy_region: Software fallback doesn't work for tiled textures.\n",
600 util_format_short_name(dst_templ
.format
));
602 src_templ
.format
= dst_templ
.format
;
605 /* Handle compressed formats. */
606 if (layout
== UTIL_FORMAT_LAYOUT_S3TC
||
607 layout
== UTIL_FORMAT_LAYOUT_RGTC
) {
608 assert(src_templ
.format
== dst_templ
.format
);
613 dst_width0
= align(dst_width0
, 4);
614 dst_height0
= align(dst_height0
, 4);
615 src_width0
= align(src_width0
, 4);
616 src_height0
= align(src_height0
, 4);
617 box
.width
= align(box
.width
, 4);
618 box
.height
= align(box
.height
, 4);
620 switch (util_format_get_blocksize(dst_templ
.format
)) {
622 /* one 4x4 pixel block has 8 bytes.
623 * we set 1 pixel = 4 bytes ===> 1 block corrensponds to 2 pixels. */
624 dst_templ
.format
= PIPE_FORMAT_R8G8B8A8_UNORM
;
625 dst_width0
= dst_width0
/ 2;
626 src_width0
= src_width0
/ 2;
632 /* one 4x4 pixel block has 16 bytes.
633 * we set 1 pixel = 4 bytes ===> 1 block corresponds to 4 pixels. */
634 dst_templ
.format
= PIPE_FORMAT_R8G8B8A8_UNORM
;
637 src_templ
.format
= dst_templ
.format
;
639 dst_height0
= dst_height0
/ 4;
640 src_height0
= src_height0
/ 4;
646 /* Fallback for textures. */
647 if (!screen
->is_format_supported(screen
, dst_templ
.format
,
648 dst
->target
, dst
->nr_samples
,
649 dst
->nr_storage_samples
,
650 PIPE_BIND_RENDER_TARGET
) ||
651 !screen
->is_format_supported(screen
, src_templ
.format
,
652 src
->target
, src
->nr_samples
,
653 src
->nr_storage_samples
,
654 PIPE_BIND_SAMPLER_VIEW
)) {
655 assert(0 && "this shouldn't happen, update r300_is_blit_supported");
656 util_resource_copy_region(pipe
, dst
, dst_level
, dstx
, dsty
, dstz
,
657 src
, src_level
, src_box
);
661 /* Decompress ZMASK. */
662 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
663 if (fb
->zsbuf
->texture
== src
||
664 fb
->zsbuf
->texture
== dst
) {
665 r300_decompress_zmask(r300
);
669 dst_view
= r300_create_surface_custom(pipe
, dst
, &dst_templ
, dst_width0
, dst_height0
);
670 src_view
= r300_create_sampler_view_custom(pipe
, src
, &src_templ
, src_width0
, src_height0
);
672 u_box_3d(dstx
, dsty
, dstz
, abs(src_box
->width
), abs(src_box
->height
),
673 abs(src_box
->depth
), &dstbox
);
675 r300_blitter_begin(r300
, R300_COPY
);
676 util_blitter_blit_generic(r300
->blitter
, dst_view
, &dstbox
,
677 src_view
, src_box
, src_width0
, src_height0
,
678 PIPE_MASK_RGBAZS
, PIPE_TEX_FILTER_NEAREST
, NULL
,
680 r300_blitter_end(r300
);
682 pipe_surface_reference(&dst_view
, NULL
);
683 pipe_sampler_view_reference(&src_view
, NULL
);
686 static boolean
r300_is_simple_msaa_resolve(const struct pipe_blit_info
*info
)
688 unsigned dst_width
= u_minify(info
->dst
.resource
->width0
, info
->dst
.level
);
689 unsigned dst_height
= u_minify(info
->dst
.resource
->height0
, info
->dst
.level
);
691 return info
->src
.resource
->nr_samples
> 1 &&
692 info
->dst
.resource
->nr_samples
<= 1 &&
693 info
->dst
.resource
->format
== info
->src
.resource
->format
&&
694 info
->dst
.resource
->format
== info
->dst
.format
&&
695 info
->src
.resource
->format
== info
->src
.format
&&
696 !info
->scissor_enable
&&
697 info
->mask
== PIPE_MASK_RGBA
&&
698 dst_width
== info
->src
.resource
->width0
&&
699 dst_height
== info
->src
.resource
->height0
&&
700 info
->dst
.box
.x
== 0 &&
701 info
->dst
.box
.y
== 0 &&
702 info
->dst
.box
.width
== dst_width
&&
703 info
->dst
.box
.height
== dst_height
&&
704 info
->src
.box
.x
== 0 &&
705 info
->src
.box
.y
== 0 &&
706 info
->src
.box
.width
== dst_width
&&
707 info
->src
.box
.height
== dst_height
&&
708 (r300_resource(info
->dst
.resource
)->tex
.microtile
!= RADEON_LAYOUT_LINEAR
||
709 r300_resource(info
->dst
.resource
)->tex
.macrotile
[info
->dst
.level
] != RADEON_LAYOUT_LINEAR
);
712 static void r300_simple_msaa_resolve(struct pipe_context
*pipe
,
713 struct pipe_resource
*dst
,
716 struct pipe_resource
*src
,
717 enum pipe_format format
)
719 struct r300_context
*r300
= r300_context(pipe
);
720 struct r300_surface
*srcsurf
, *dstsurf
;
721 struct pipe_surface surf_tmpl
;
722 struct r300_aa_state
*aa
= (struct r300_aa_state
*)r300
->aa_state
.state
;
724 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
725 surf_tmpl
.format
= format
;
726 srcsurf
= r300_surface(pipe
->create_surface(pipe
, src
, &surf_tmpl
));
728 surf_tmpl
.format
= format
;
729 surf_tmpl
.u
.tex
.level
= dst_level
;
730 surf_tmpl
.u
.tex
.first_layer
=
731 surf_tmpl
.u
.tex
.last_layer
= dst_layer
;
732 dstsurf
= r300_surface(pipe
->create_surface(pipe
, dst
, &surf_tmpl
));
734 /* COLORPITCH should contain the tiling info of the resolve buffer.
735 * The tiling of the AA buffer isn't programmable anyway. */
736 srcsurf
->pitch
&= ~(R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
737 srcsurf
->pitch
|= dstsurf
->pitch
& (R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
739 /* Enable AA resolve. */
741 r300
->aa_state
.size
= 8;
742 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
744 /* Resolve the surface. */
745 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
);
746 util_blitter_custom_color(r300
->blitter
, &srcsurf
->base
, NULL
);
747 r300_blitter_end(r300
);
749 /* Disable AA resolve. */
751 r300
->aa_state
.size
= 4;
752 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
754 pipe_surface_reference((struct pipe_surface
**)&srcsurf
, NULL
);
755 pipe_surface_reference((struct pipe_surface
**)&dstsurf
, NULL
);
758 static void r300_msaa_resolve(struct pipe_context
*pipe
,
759 const struct pipe_blit_info
*info
)
761 struct r300_context
*r300
= r300_context(pipe
);
762 struct pipe_screen
*screen
= pipe
->screen
;
763 struct pipe_resource
*tmp
, templ
;
764 struct pipe_blit_info blit
;
766 assert(info
->src
.level
== 0);
767 assert(info
->src
.box
.z
== 0);
768 assert(info
->src
.box
.depth
== 1);
769 assert(info
->dst
.box
.depth
== 1);
771 if (r300_is_simple_msaa_resolve(info
)) {
772 r300_simple_msaa_resolve(pipe
, info
->dst
.resource
, info
->dst
.level
,
773 info
->dst
.box
.z
, info
->src
.resource
,
778 /* resolve into a temporary texture, then blit */
779 memset(&templ
, 0, sizeof(templ
));
780 templ
.target
= PIPE_TEXTURE_2D
;
781 templ
.format
= info
->src
.resource
->format
;
782 templ
.width0
= info
->src
.resource
->width0
;
783 templ
.height0
= info
->src
.resource
->height0
;
785 templ
.array_size
= 1;
786 templ
.usage
= PIPE_USAGE_DEFAULT
;
787 templ
.flags
= R300_RESOURCE_FORCE_MICROTILING
;
789 tmp
= screen
->resource_create(screen
, &templ
);
792 r300_simple_msaa_resolve(pipe
, tmp
, 0, 0, info
->src
.resource
,
797 blit
.src
.resource
= tmp
;
800 r300_blitter_begin(r300
, R300_BLIT
| R300_IGNORE_RENDER_COND
);
801 util_blitter_blit(r300
->blitter
, &blit
);
802 r300_blitter_end(r300
);
804 pipe_resource_reference(&tmp
, NULL
);
807 static void r300_blit(struct pipe_context
*pipe
,
808 const struct pipe_blit_info
*blit
)
810 struct r300_context
*r300
= r300_context(pipe
);
811 struct pipe_framebuffer_state
*fb
=
812 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
813 struct pipe_blit_info info
= *blit
;
815 /* The driver supports sRGB textures but not framebuffers. Blitting
816 * from sRGB to sRGB should be the same as blitting from linear
817 * to linear, so use that, This avoids incorrect linearization.
819 if (util_format_is_srgb(info
.src
.format
)) {
820 info
.src
.format
= util_format_linear(info
.src
.format
);
821 info
.dst
.format
= util_format_linear(info
.dst
.format
);
825 if (info
.src
.resource
->nr_samples
> 1 &&
826 !util_format_is_depth_or_stencil(info
.src
.resource
->format
)) {
827 r300_msaa_resolve(pipe
, &info
);
831 /* Can't read MSAA textures. */
832 if (info
.src
.resource
->nr_samples
> 1) {
836 /* Blit a combined depth-stencil resource as color.
837 * S8Z24 is the only supported stencil format. */
838 if ((info
.mask
& PIPE_MASK_S
) &&
839 info
.src
.format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
&&
840 info
.dst
.format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
) {
841 if (info
.dst
.resource
->nr_samples
> 1) {
842 /* Cannot do that with MSAA buffers. */
843 info
.mask
&= ~PIPE_MASK_S
;
844 if (!(info
.mask
& PIPE_MASK_Z
)) {
848 /* Single-sample buffer. */
849 info
.src
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
850 info
.dst
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
851 if (info
.mask
& PIPE_MASK_Z
) {
852 info
.mask
= PIPE_MASK_RGBA
; /* depth+stencil */
854 info
.mask
= PIPE_MASK_B
; /* stencil only */
859 /* Decompress ZMASK. */
860 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
861 if (fb
->zsbuf
->texture
== info
.src
.resource
||
862 fb
->zsbuf
->texture
== info
.dst
.resource
) {
863 r300_decompress_zmask(r300
);
867 r300_blitter_begin(r300
, R300_BLIT
|
868 (info
.render_condition_enable
? 0 : R300_IGNORE_RENDER_COND
));
869 util_blitter_blit(r300
->blitter
, &info
);
870 r300_blitter_end(r300
);
873 static void r300_flush_resource(struct pipe_context
*ctx
,
874 struct pipe_resource
*resource
)
878 void r300_init_blit_functions(struct r300_context
*r300
)
880 r300
->context
.clear
= r300_clear
;
881 r300
->context
.clear_render_target
= r300_clear_render_target
;
882 r300
->context
.clear_depth_stencil
= r300_clear_depth_stencil
;
883 r300
->context
.resource_copy_region
= r300_resource_copy_region
;
884 r300
->context
.blit
= r300_blit
;
885 r300
->context
.flush_resource
= r300_flush_resource
;