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/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 union pipe_color_union
*color
,
209 /* My notes about Zbuffer compression:
211 * 1) The zbuffer must be micro-tiled and whole microtiles must be
212 * written if compression is enabled. If microtiling is disabled,
215 * 2) There is ZMASK RAM which contains a compressed zbuffer.
216 * Each dword of the Z Mask contains compression information
217 * for 16 4x4 pixel tiles, that is 2 bits for each tile.
218 * On chips with 2 Z pipes, every other dword maps to a different
219 * pipe. On newer chipsets, there is a new compression mode
220 * with 8x8 pixel tiles per 2 bits.
222 * 3) The FASTFILL bit has nothing to do with filling. It only tells hw
223 * it should look in the ZMASK RAM first before fetching from a real
226 * 4) If a pixel is in a cleared state, ZB_DEPTHCLEARVALUE is returned
227 * during zbuffer reads instead of the value that is actually stored
228 * in the zbuffer memory. A pixel is in a cleared state when its ZMASK
229 * is equal to 0. Therefore, if you clear ZMASK with zeros, you may
230 * leave the zbuffer memory uninitialized, but then you must enable
231 * compression, so that the ZMASK RAM is actually used.
233 * 5) Each 4x4 (or 8x8) tile is automatically decompressed and recompressed
234 * during zbuffer updates. A special decompressing operation should be
235 * used to fully decompress a zbuffer, which basically just stores all
236 * compressed tiles in ZMASK to the zbuffer memory.
238 * 6) For a 16-bit zbuffer, compression causes a hung with one or
239 * two samples and should not be used.
241 * 7) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears
242 * to avoid needless decompression.
244 * 8) Fastfill must not be used if reading of compressed Z data is disabled
245 * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
246 * i.e. it cannot be used to compress the zbuffer.
248 * 9) ZB_CB_CLEAR does not interact with zbuffer compression in any way.
253 struct r300_context
* r300
= r300_context(pipe
);
254 struct pipe_framebuffer_state
*fb
=
255 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
256 struct r300_hyperz_state
*hyperz
=
257 (struct r300_hyperz_state
*)r300
->hyperz_state
.state
;
258 uint32_t width
= fb
->width
;
259 uint32_t height
= fb
->height
;
260 uint32_t hyperz_dcv
= hyperz
->zb_depthclearvalue
;
263 * The zbuffer must be in micro-tiled mode, otherwise it locks up. */
264 if (buffers
& PIPE_CLEAR_DEPTHSTENCIL
) {
265 boolean zmask_clear
, hiz_clear
;
267 /* If both depth and stencil are present, they must be cleared together. */
268 if (fb
->zsbuf
->texture
->format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
&&
269 (buffers
& PIPE_CLEAR_DEPTHSTENCIL
) != PIPE_CLEAR_DEPTHSTENCIL
) {
273 zmask_clear
= r300_fast_zclear_allowed(r300
, buffers
);
274 hiz_clear
= r300_hiz_clear_allowed(r300
);
277 /* If we need Hyper-Z. */
278 if (zmask_clear
|| hiz_clear
) {
279 /* Try to obtain the access to Hyper-Z buffers if we don't have one. */
280 if (!r300
->hyperz_enabled
&&
281 (r300
->screen
->caps
.is_r500
|| debug_get_option_hyperz())) {
282 r300
->hyperz_enabled
=
283 r300
->rws
->cs_request_feature(r300
->cs
,
284 RADEON_FID_R300_HYPERZ_ACCESS
,
286 if (r300
->hyperz_enabled
) {
287 /* Need to emit HyperZ buffer regs for the first time. */
288 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
292 /* Setup Hyper-Z clears. */
293 if (r300
->hyperz_enabled
) {
295 hyperz_dcv
= hyperz
->zb_depthclearvalue
=
296 r300_depth_clear_value(fb
->zsbuf
->format
, depth
, stencil
);
298 r300_mark_atom_dirty(r300
, &r300
->zmask_clear
);
299 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
300 buffers
&= ~PIPE_CLEAR_DEPTHSTENCIL
;
304 r300
->hiz_clear_value
= r300_hiz_clear_value(depth
);
305 r300_mark_atom_dirty(r300
, &r300
->hiz_clear
);
306 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
308 r300
->num_z_clears
++;
313 /* Use fast color clear for an AA colorbuffer.
314 * The CMASK is shared between all colorbuffers, so we use it
315 * if there is only one colorbuffer bound. */
316 if ((buffers
& PIPE_CLEAR_COLOR
) && fb
->nr_cbufs
== 1 && fb
->cbufs
[0] &&
317 r300_resource(fb
->cbufs
[0]->texture
)->tex
.cmask_dwords
) {
318 /* Try to obtain the access to the CMASK if we don't have one. */
319 if (!r300
->cmask_access
) {
321 r300
->rws
->cs_request_feature(r300
->cs
,
322 RADEON_FID_R300_CMASK_ACCESS
,
326 /* Setup the clear. */
327 if (r300
->cmask_access
) {
328 /* Pair the resource with the CMASK to avoid other resources
330 if (!r300
->screen
->cmask_resource
) {
331 pipe_mutex_lock(r300
->screen
->cmask_mutex
);
332 /* Double checking (first unlocked, then locked). */
333 if (!r300
->screen
->cmask_resource
) {
334 /* Don't reference this, so that the texture can be
335 * destroyed while set in cmask_resource.
336 * Then in texture_destroy, we set cmask_resource to NULL. */
337 r300
->screen
->cmask_resource
= fb
->cbufs
[0]->texture
;
339 pipe_mutex_unlock(r300
->screen
->cmask_mutex
);
342 if (r300
->screen
->cmask_resource
== fb
->cbufs
[0]->texture
) {
343 r300_set_clear_color(r300
, color
);
344 r300_mark_atom_dirty(r300
, &r300
->cmask_clear
);
345 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
346 buffers
&= ~PIPE_CLEAR_COLOR
;
350 /* Enable CBZB clear. */
351 else if (r300_cbzb_clear_allowed(r300
, buffers
)) {
352 struct r300_surface
*surf
= r300_surface(fb
->cbufs
[0]);
354 hyperz
->zb_depthclearvalue
=
355 r300_depth_clear_cb_value(surf
->base
.format
, color
->f
);
357 width
= surf
->cbzb_width
;
358 height
= surf
->cbzb_height
;
360 r300
->cbzb_clear
= TRUE
;
361 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
366 /* Clear using the blitter. */
367 r300_blitter_begin(r300
, R300_CLEAR
);
368 util_blitter_clear(r300
->blitter
, width
, height
, 1,
369 buffers
, color
, depth
, stencil
);
370 r300_blitter_end(r300
);
371 } else if (r300
->zmask_clear
.dirty
||
372 r300
->hiz_clear
.dirty
||
373 r300
->cmask_clear
.dirty
) {
374 /* Just clear zmask and hiz now, this does not use the standard draw
376 /* Calculate zmask_clear and hiz_clear atom sizes. */
378 r300
->gpu_flush
.size
+
379 (r300
->zmask_clear
.dirty
? r300
->zmask_clear
.size
: 0) +
380 (r300
->hiz_clear
.dirty
? r300
->hiz_clear
.size
: 0) +
381 (r300
->cmask_clear
.dirty
? r300
->cmask_clear
.size
: 0) +
382 r300_get_num_cs_end_dwords(r300
);
384 /* Reserve CS space. */
385 if (dwords
> (r300
->cs
->max_dw
- r300
->cs
->cdw
)) {
386 r300_flush(&r300
->context
, RADEON_FLUSH_ASYNC
, NULL
);
389 /* Emit clear packets. */
390 r300_emit_gpu_flush(r300
, r300
->gpu_flush
.size
, r300
->gpu_flush
.state
);
391 r300
->gpu_flush
.dirty
= FALSE
;
393 if (r300
->zmask_clear
.dirty
) {
394 r300_emit_zmask_clear(r300
, r300
->zmask_clear
.size
,
395 r300
->zmask_clear
.state
);
396 r300
->zmask_clear
.dirty
= FALSE
;
398 if (r300
->hiz_clear
.dirty
) {
399 r300_emit_hiz_clear(r300
, r300
->hiz_clear
.size
,
400 r300
->hiz_clear
.state
);
401 r300
->hiz_clear
.dirty
= FALSE
;
403 if (r300
->cmask_clear
.dirty
) {
404 r300_emit_cmask_clear(r300
, r300
->cmask_clear
.size
,
405 r300
->cmask_clear
.state
);
406 r300
->cmask_clear
.dirty
= FALSE
;
412 /* Disable CBZB clear. */
413 if (r300
->cbzb_clear
) {
414 r300
->cbzb_clear
= FALSE
;
415 hyperz
->zb_depthclearvalue
= hyperz_dcv
;
416 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
419 /* Enable fastfill and/or hiz.
421 * If we cleared zmask/hiz, it's in use now. The Hyper-Z state update
422 * looks if zmask/hiz is in use and programs hardware accordingly. */
423 if (r300
->zmask_in_use
|| r300
->hiz_in_use
) {
424 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
428 /* Clear a region of a color surface to a constant value. */
429 static void r300_clear_render_target(struct pipe_context
*pipe
,
430 struct pipe_surface
*dst
,
431 const union pipe_color_union
*color
,
432 unsigned dstx
, unsigned dsty
,
433 unsigned width
, unsigned height
)
435 struct r300_context
*r300
= r300_context(pipe
);
437 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
);
438 util_blitter_clear_render_target(r300
->blitter
, dst
, color
,
439 dstx
, dsty
, width
, height
);
440 r300_blitter_end(r300
);
443 /* Clear a region of a depth stencil surface. */
444 static void r300_clear_depth_stencil(struct pipe_context
*pipe
,
445 struct pipe_surface
*dst
,
446 unsigned clear_flags
,
449 unsigned dstx
, unsigned dsty
,
450 unsigned width
, unsigned height
)
452 struct r300_context
*r300
= r300_context(pipe
);
453 struct pipe_framebuffer_state
*fb
=
454 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
456 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
457 if (fb
->zsbuf
->texture
== dst
->texture
) {
458 r300_decompress_zmask(r300
);
462 /* XXX Do not decompress ZMask of the currently-set zbuffer. */
463 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
);
464 util_blitter_clear_depth_stencil(r300
->blitter
, dst
, clear_flags
, depth
, stencil
,
465 dstx
, dsty
, width
, height
);
466 r300_blitter_end(r300
);
469 void r300_decompress_zmask(struct r300_context
*r300
)
471 struct pipe_framebuffer_state
*fb
=
472 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
474 if (!r300
->zmask_in_use
|| r300
->locked_zbuffer
)
477 r300
->zmask_decompress
= TRUE
;
478 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
480 r300_blitter_begin(r300
, R300_DECOMPRESS
);
481 util_blitter_custom_clear_depth(r300
->blitter
, fb
->width
, fb
->height
, 0,
482 r300
->dsa_decompress_zmask
);
483 r300_blitter_end(r300
);
485 r300
->zmask_decompress
= FALSE
;
486 r300
->zmask_in_use
= FALSE
;
487 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
490 void r300_decompress_zmask_locked_unsafe(struct r300_context
*r300
)
492 struct pipe_framebuffer_state fb
;
494 memset(&fb
, 0, sizeof(fb
));
495 fb
.width
= r300
->locked_zbuffer
->width
;
496 fb
.height
= r300
->locked_zbuffer
->height
;
497 fb
.zsbuf
= r300
->locked_zbuffer
;
499 r300
->context
.set_framebuffer_state(&r300
->context
, &fb
);
500 r300_decompress_zmask(r300
);
503 void r300_decompress_zmask_locked(struct r300_context
*r300
)
505 struct pipe_framebuffer_state saved_fb
;
507 memset(&saved_fb
, 0, sizeof(saved_fb
));
508 util_copy_framebuffer_state(&saved_fb
, r300
->fb_state
.state
);
509 r300_decompress_zmask_locked_unsafe(r300
);
510 r300
->context
.set_framebuffer_state(&r300
->context
, &saved_fb
);
511 util_unreference_framebuffer_state(&saved_fb
);
513 pipe_surface_reference(&r300
->locked_zbuffer
, NULL
);
516 bool r300_is_blit_supported(enum pipe_format format
)
518 const struct util_format_description
*desc
=
519 util_format_description(format
);
521 return desc
->layout
== UTIL_FORMAT_LAYOUT_PLAIN
||
522 desc
->layout
== UTIL_FORMAT_LAYOUT_S3TC
||
523 desc
->layout
== UTIL_FORMAT_LAYOUT_RGTC
;
526 /* Copy a block of pixels from one surface to another. */
527 static void r300_resource_copy_region(struct pipe_context
*pipe
,
528 struct pipe_resource
*dst
,
530 unsigned dstx
, unsigned dsty
, unsigned dstz
,
531 struct pipe_resource
*src
,
533 const struct pipe_box
*src_box
)
535 struct pipe_screen
*screen
= pipe
->screen
;
536 struct r300_context
*r300
= r300_context(pipe
);
537 struct pipe_framebuffer_state
*fb
=
538 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
539 unsigned src_width0
= r300_resource(src
)->tex
.width0
;
540 unsigned src_height0
= r300_resource(src
)->tex
.height0
;
541 unsigned dst_width0
= r300_resource(dst
)->tex
.width0
;
542 unsigned dst_height0
= r300_resource(dst
)->tex
.height0
;
544 struct pipe_box box
, dstbox
;
545 struct pipe_sampler_view src_templ
, *src_view
;
546 struct pipe_surface dst_templ
, *dst_view
;
548 /* Fallback for buffers. */
549 if ((dst
->target
== PIPE_BUFFER
&& src
->target
== PIPE_BUFFER
) ||
550 !r300_is_blit_supported(dst
->format
)) {
551 util_resource_copy_region(pipe
, dst
, dst_level
, dstx
, dsty
, dstz
,
552 src
, src_level
, src_box
);
556 /* Can't read MSAA textures. */
557 if (src
->nr_samples
> 1 || dst
->nr_samples
> 1) {
561 /* The code below changes the texture format so that the copy can be done
562 * on hardware. E.g. depth-stencil surfaces are copied as RGBA
565 util_blitter_default_dst_texture(&dst_templ
, dst
, dst_level
, dstz
);
566 util_blitter_default_src_texture(&src_templ
, src
, src_level
);
568 layout
= util_format_description(dst_templ
.format
)->layout
;
570 /* Handle non-renderable plain formats. */
571 if (layout
== UTIL_FORMAT_LAYOUT_PLAIN
&&
572 (!screen
->is_format_supported(screen
, src_templ
.format
, src
->target
,
574 PIPE_BIND_SAMPLER_VIEW
) ||
575 !screen
->is_format_supported(screen
, dst_templ
.format
, dst
->target
,
577 PIPE_BIND_RENDER_TARGET
))) {
578 switch (util_format_get_blocksize(dst_templ
.format
)) {
580 dst_templ
.format
= PIPE_FORMAT_I8_UNORM
;
583 dst_templ
.format
= PIPE_FORMAT_B4G4R4A4_UNORM
;
586 dst_templ
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
589 dst_templ
.format
= PIPE_FORMAT_R16G16B16A16_UNORM
;
592 debug_printf("r300: copy_region: Unhandled format: %s. Falling back to software.\n"
593 "r300: copy_region: Software fallback doesn't work for tiled textures.\n",
594 util_format_short_name(dst_templ
.format
));
596 src_templ
.format
= dst_templ
.format
;
599 /* Handle compressed formats. */
600 if (layout
== UTIL_FORMAT_LAYOUT_S3TC
||
601 layout
== UTIL_FORMAT_LAYOUT_RGTC
) {
602 assert(src_templ
.format
== dst_templ
.format
);
607 dst_width0
= align(dst_width0
, 4);
608 dst_height0
= align(dst_height0
, 4);
609 src_width0
= align(src_width0
, 4);
610 src_height0
= align(src_height0
, 4);
611 box
.width
= align(box
.width
, 4);
612 box
.height
= align(box
.height
, 4);
614 switch (util_format_get_blocksize(dst_templ
.format
)) {
616 /* one 4x4 pixel block has 8 bytes.
617 * we set 1 pixel = 4 bytes ===> 1 block corrensponds to 2 pixels. */
618 dst_templ
.format
= PIPE_FORMAT_R8G8B8A8_UNORM
;
619 dst_width0
= dst_width0
/ 2;
620 src_width0
= src_width0
/ 2;
626 /* one 4x4 pixel block has 16 bytes.
627 * we set 1 pixel = 4 bytes ===> 1 block corresponds to 4 pixels. */
628 dst_templ
.format
= PIPE_FORMAT_R8G8B8A8_UNORM
;
631 src_templ
.format
= dst_templ
.format
;
633 dst_height0
= dst_height0
/ 4;
634 src_height0
= src_height0
/ 4;
640 /* Fallback for textures. */
641 if (!screen
->is_format_supported(screen
, dst_templ
.format
,
642 dst
->target
, dst
->nr_samples
,
643 PIPE_BIND_RENDER_TARGET
) ||
644 !screen
->is_format_supported(screen
, src_templ
.format
,
645 src
->target
, src
->nr_samples
,
646 PIPE_BIND_SAMPLER_VIEW
)) {
647 assert(0 && "this shouldn't happen, update r300_is_blit_supported");
648 util_resource_copy_region(pipe
, dst
, dst_level
, dstx
, dsty
, dstz
,
649 src
, src_level
, src_box
);
653 /* Decompress ZMASK. */
654 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
655 if (fb
->zsbuf
->texture
== src
||
656 fb
->zsbuf
->texture
== dst
) {
657 r300_decompress_zmask(r300
);
661 dst_view
= r300_create_surface_custom(pipe
, dst
, &dst_templ
, dst_width0
, dst_height0
);
662 src_view
= r300_create_sampler_view_custom(pipe
, src
, &src_templ
, src_width0
, src_height0
);
664 u_box_3d(dstx
, dsty
, dstz
, abs(src_box
->width
), abs(src_box
->height
),
665 abs(src_box
->depth
), &dstbox
);
667 r300_blitter_begin(r300
, R300_COPY
);
668 util_blitter_blit_generic(r300
->blitter
, dst_view
, &dstbox
,
669 src_view
, src_box
, src_width0
, src_height0
,
670 PIPE_MASK_RGBAZS
, PIPE_TEX_FILTER_NEAREST
, NULL
);
671 r300_blitter_end(r300
);
673 pipe_surface_reference(&dst_view
, NULL
);
674 pipe_sampler_view_reference(&src_view
, NULL
);
677 static boolean
r300_is_simple_msaa_resolve(const struct pipe_blit_info
*info
)
679 unsigned dst_width
= u_minify(info
->dst
.resource
->width0
, info
->dst
.level
);
680 unsigned dst_height
= u_minify(info
->dst
.resource
->height0
, info
->dst
.level
);
682 return info
->src
.resource
->nr_samples
> 1 &&
683 info
->dst
.resource
->nr_samples
<= 1 &&
684 info
->dst
.resource
->format
== info
->src
.resource
->format
&&
685 info
->dst
.resource
->format
== info
->dst
.format
&&
686 info
->src
.resource
->format
== info
->src
.format
&&
687 !info
->scissor_enable
&&
688 info
->mask
== PIPE_MASK_RGBA
&&
689 dst_width
== info
->src
.resource
->width0
&&
690 dst_height
== info
->src
.resource
->height0
&&
691 info
->dst
.box
.x
== 0 &&
692 info
->dst
.box
.y
== 0 &&
693 info
->dst
.box
.width
== dst_width
&&
694 info
->dst
.box
.height
== dst_height
&&
695 info
->src
.box
.x
== 0 &&
696 info
->src
.box
.y
== 0 &&
697 info
->src
.box
.width
== dst_width
&&
698 info
->src
.box
.height
== dst_height
&&
699 (r300_resource(info
->dst
.resource
)->tex
.microtile
!= RADEON_LAYOUT_LINEAR
||
700 r300_resource(info
->dst
.resource
)->tex
.macrotile
[info
->dst
.level
] != RADEON_LAYOUT_LINEAR
);
703 static void r300_simple_msaa_resolve(struct pipe_context
*pipe
,
704 struct pipe_resource
*dst
,
707 struct pipe_resource
*src
,
708 enum pipe_format format
)
710 struct r300_context
*r300
= r300_context(pipe
);
711 struct r300_surface
*srcsurf
, *dstsurf
;
712 struct pipe_surface surf_tmpl
;
713 struct r300_aa_state
*aa
= (struct r300_aa_state
*)r300
->aa_state
.state
;
715 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
716 surf_tmpl
.format
= format
;
717 srcsurf
= r300_surface(pipe
->create_surface(pipe
, src
, &surf_tmpl
));
719 surf_tmpl
.format
= format
;
720 surf_tmpl
.u
.tex
.level
= dst_level
;
721 surf_tmpl
.u
.tex
.first_layer
=
722 surf_tmpl
.u
.tex
.last_layer
= dst_layer
;
723 dstsurf
= r300_surface(pipe
->create_surface(pipe
, dst
, &surf_tmpl
));
725 /* COLORPITCH should contain the tiling info of the resolve buffer.
726 * The tiling of the AA buffer isn't programmable anyway. */
727 srcsurf
->pitch
&= ~(R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
728 srcsurf
->pitch
|= dstsurf
->pitch
& (R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
730 /* Enable AA resolve. */
732 r300
->aa_state
.size
= 8;
733 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
735 /* Resolve the surface. */
736 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
);
737 util_blitter_custom_color(r300
->blitter
, &srcsurf
->base
, NULL
);
738 r300_blitter_end(r300
);
740 /* Disable AA resolve. */
742 r300
->aa_state
.size
= 4;
743 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
745 pipe_surface_reference((struct pipe_surface
**)&srcsurf
, NULL
);
746 pipe_surface_reference((struct pipe_surface
**)&dstsurf
, NULL
);
749 static void r300_msaa_resolve(struct pipe_context
*pipe
,
750 const struct pipe_blit_info
*info
)
752 struct r300_context
*r300
= r300_context(pipe
);
753 struct pipe_screen
*screen
= pipe
->screen
;
754 struct pipe_resource
*tmp
, templ
;
755 struct pipe_blit_info blit
;
757 assert(info
->src
.level
== 0);
758 assert(info
->src
.box
.z
== 0);
759 assert(info
->src
.box
.depth
== 1);
760 assert(info
->dst
.box
.depth
== 1);
762 if (r300_is_simple_msaa_resolve(info
)) {
763 r300_simple_msaa_resolve(pipe
, info
->dst
.resource
, info
->dst
.level
,
764 info
->dst
.box
.z
, info
->src
.resource
,
769 /* resolve into a temporary texture, then blit */
770 memset(&templ
, 0, sizeof(templ
));
771 templ
.target
= PIPE_TEXTURE_2D
;
772 templ
.format
= info
->src
.resource
->format
;
773 templ
.width0
= info
->src
.resource
->width0
;
774 templ
.height0
= info
->src
.resource
->height0
;
776 templ
.array_size
= 1;
777 templ
.usage
= PIPE_USAGE_DEFAULT
;
778 templ
.flags
= R300_RESOURCE_FORCE_MICROTILING
;
780 tmp
= screen
->resource_create(screen
, &templ
);
783 r300_simple_msaa_resolve(pipe
, tmp
, 0, 0, info
->src
.resource
,
788 blit
.src
.resource
= tmp
;
791 r300_blitter_begin(r300
, R300_BLIT
| R300_IGNORE_RENDER_COND
);
792 util_blitter_blit(r300
->blitter
, &blit
);
793 r300_blitter_end(r300
);
795 pipe_resource_reference(&tmp
, NULL
);
798 static void r300_blit(struct pipe_context
*pipe
,
799 const struct pipe_blit_info
*blit
)
801 struct r300_context
*r300
= r300_context(pipe
);
802 struct pipe_framebuffer_state
*fb
=
803 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
804 struct pipe_blit_info info
= *blit
;
806 /* The driver supports sRGB textures but not framebuffers. Blitting
807 * from sRGB to sRGB should be the same as blitting from linear
808 * to linear, so use that, This avoids incorrect linearization.
810 if (util_format_is_srgb(info
.src
.format
)) {
811 info
.src
.format
= util_format_linear(info
.src
.format
);
812 info
.dst
.format
= util_format_linear(info
.dst
.format
);
816 if (info
.src
.resource
->nr_samples
> 1 &&
817 !util_format_is_depth_or_stencil(info
.src
.resource
->format
)) {
818 r300_msaa_resolve(pipe
, &info
);
822 /* Can't read MSAA textures. */
823 if (info
.src
.resource
->nr_samples
> 1) {
827 /* Blit a combined depth-stencil resource as color.
828 * S8Z24 is the only supported stencil format. */
829 if ((info
.mask
& PIPE_MASK_S
) &&
830 info
.src
.format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
&&
831 info
.dst
.format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
) {
832 if (info
.dst
.resource
->nr_samples
> 1) {
833 /* Cannot do that with MSAA buffers. */
834 info
.mask
&= ~PIPE_MASK_S
;
835 if (!(info
.mask
& PIPE_MASK_Z
)) {
839 /* Single-sample buffer. */
840 info
.src
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
841 info
.dst
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
842 if (info
.mask
& PIPE_MASK_Z
) {
843 info
.mask
= PIPE_MASK_RGBA
; /* depth+stencil */
845 info
.mask
= PIPE_MASK_B
; /* stencil only */
850 /* Decompress ZMASK. */
851 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
852 if (fb
->zsbuf
->texture
== info
.src
.resource
||
853 fb
->zsbuf
->texture
== info
.dst
.resource
) {
854 r300_decompress_zmask(r300
);
858 r300_blitter_begin(r300
, R300_BLIT
|
859 (info
.render_condition_enable
? 0 : R300_IGNORE_RENDER_COND
));
860 util_blitter_blit(r300
->blitter
, &info
);
861 r300_blitter_end(r300
);
864 static void r300_flush_resource(struct pipe_context
*ctx
,
865 struct pipe_resource
*resource
)
869 void r300_init_blit_functions(struct r300_context
*r300
)
871 r300
->context
.clear
= r300_clear
;
872 r300
->context
.clear_render_target
= r300_clear_render_target
;
873 r300
->context
.clear_depth_stencil
= r300_clear_depth_stencil
;
874 r300
->context
.resource_copy_region
= r300_resource_copy_region
;
875 r300
->context
.blit
= r300_blit
;
876 r300
->context
.flush_resource
= r300_flush_resource
;