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
|
48 R300_SAVE_TEXTURES
| R300_IGNORE_RENDER_COND
,
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
|| fb
->nr_cbufs
!= 1)
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 /* (0,1,2,3) maps to (B,G,R,A) */
192 r300
->color_clear_value_gb
= uc
.h
[0] | ((uint32_t)uc
.h
[1] << 16);
193 r300
->color_clear_value_ar
= uc
.h
[2] | ((uint32_t)uc
.h
[3] << 16);
195 r300
->color_clear_value
= uc
.ui
;
199 DEBUG_GET_ONCE_BOOL_OPTION(hyperz
, "RADEON_HYPERZ", FALSE
)
201 /* Clear currently bound buffers. */
202 static void r300_clear(struct pipe_context
* pipe
,
204 const union pipe_color_union
*color
,
208 /* My notes about Zbuffer compression:
210 * 1) The zbuffer must be micro-tiled and whole microtiles must be
211 * written if compression is enabled. If microtiling is disabled,
214 * 2) There is ZMASK RAM which contains a compressed zbuffer.
215 * Each dword of the Z Mask contains compression information
216 * for 16 4x4 pixel tiles, that is 2 bits for each tile.
217 * On chips with 2 Z pipes, every other dword maps to a different
218 * pipe. On newer chipsets, there is a new compression mode
219 * with 8x8 pixel tiles per 2 bits.
221 * 3) The FASTFILL bit has nothing to do with filling. It only tells hw
222 * it should look in the ZMASK RAM first before fetching from a real
225 * 4) If a pixel is in a cleared state, ZB_DEPTHCLEARVALUE is returned
226 * during zbuffer reads instead of the value that is actually stored
227 * in the zbuffer memory. A pixel is in a cleared state when its ZMASK
228 * is equal to 0. Therefore, if you clear ZMASK with zeros, you may
229 * leave the zbuffer memory uninitialized, but then you must enable
230 * compression, so that the ZMASK RAM is actually used.
232 * 5) Each 4x4 (or 8x8) tile is automatically decompressed and recompressed
233 * during zbuffer updates. A special decompressing operation should be
234 * used to fully decompress a zbuffer, which basically just stores all
235 * compressed tiles in ZMASK to the zbuffer memory.
237 * 6) For a 16-bit zbuffer, compression causes a hung with one or
238 * two samples and should not be used.
240 * 7) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears
241 * to avoid needless decompression.
243 * 8) Fastfill must not be used if reading of compressed Z data is disabled
244 * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
245 * i.e. it cannot be used to compress the zbuffer.
247 * 9) ZB_CB_CLEAR does not interact with zbuffer compression in any way.
252 struct r300_context
* r300
= r300_context(pipe
);
253 struct pipe_framebuffer_state
*fb
=
254 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
255 struct r300_hyperz_state
*hyperz
=
256 (struct r300_hyperz_state
*)r300
->hyperz_state
.state
;
257 uint32_t width
= fb
->width
;
258 uint32_t height
= fb
->height
;
259 uint32_t hyperz_dcv
= hyperz
->zb_depthclearvalue
;
262 * The zbuffer must be in micro-tiled mode, otherwise it locks up. */
263 if (buffers
& PIPE_CLEAR_DEPTHSTENCIL
) {
264 boolean zmask_clear
, hiz_clear
;
266 /* If both depth and stencil are present, they must be cleared together. */
267 if (fb
->zsbuf
->texture
->format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
&&
268 (buffers
& PIPE_CLEAR_DEPTHSTENCIL
) != PIPE_CLEAR_DEPTHSTENCIL
) {
272 zmask_clear
= r300_fast_zclear_allowed(r300
, buffers
);
273 hiz_clear
= r300_hiz_clear_allowed(r300
);
276 /* If we need Hyper-Z. */
277 if (zmask_clear
|| hiz_clear
) {
278 /* Try to obtain the access to Hyper-Z buffers if we don't have one. */
279 if (!r300
->hyperz_enabled
&&
280 (r300
->screen
->caps
.is_r500
|| debug_get_option_hyperz())) {
281 r300
->hyperz_enabled
=
282 r300
->rws
->cs_request_feature(r300
->cs
,
283 RADEON_FID_R300_HYPERZ_ACCESS
,
285 if (r300
->hyperz_enabled
) {
286 /* Need to emit HyperZ buffer regs for the first time. */
287 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
291 /* Setup Hyper-Z clears. */
292 if (r300
->hyperz_enabled
) {
294 hyperz_dcv
= hyperz
->zb_depthclearvalue
=
295 r300_depth_clear_value(fb
->zsbuf
->format
, depth
, stencil
);
297 r300_mark_atom_dirty(r300
, &r300
->zmask_clear
);
298 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
299 buffers
&= ~PIPE_CLEAR_DEPTHSTENCIL
;
303 r300
->hiz_clear_value
= r300_hiz_clear_value(depth
);
304 r300_mark_atom_dirty(r300
, &r300
->hiz_clear
);
305 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
307 r300
->num_z_clears
++;
312 /* Use fast color clear for an AA colorbuffer.
313 * The CMASK is shared between all colorbuffers, so we use it
314 * if there is only one colorbuffer bound. */
315 if ((buffers
& PIPE_CLEAR_COLOR
) && fb
->nr_cbufs
== 1 &&
316 r300_resource(fb
->cbufs
[0]->texture
)->tex
.cmask_dwords
) {
317 /* Try to obtain the access to the CMASK if we don't have one. */
318 if (!r300
->cmask_access
) {
320 r300
->rws
->cs_request_feature(r300
->cs
,
321 RADEON_FID_R300_CMASK_ACCESS
,
325 /* Setup the clear. */
326 if (r300
->cmask_access
) {
327 /* Pair the resource with the CMASK to avoid other resources
329 if (!r300
->screen
->cmask_resource
) {
330 pipe_mutex_lock(r300
->screen
->cmask_mutex
);
331 /* Double checking (first unlocked, then locked). */
332 if (!r300
->screen
->cmask_resource
) {
333 /* Don't reference this, so that the texture can be
334 * destroyed while set in cmask_resource.
335 * Then in texture_destroy, we set cmask_resource to NULL. */
336 r300
->screen
->cmask_resource
= fb
->cbufs
[0]->texture
;
338 pipe_mutex_unlock(r300
->screen
->cmask_mutex
);
341 if (r300
->screen
->cmask_resource
== fb
->cbufs
[0]->texture
) {
342 r300_set_clear_color(r300
, color
);
343 r300_mark_atom_dirty(r300
, &r300
->cmask_clear
);
344 r300_mark_atom_dirty(r300
, &r300
->gpu_flush
);
345 buffers
&= ~PIPE_CLEAR_COLOR
;
349 /* Enable CBZB clear. */
350 else if (r300_cbzb_clear_allowed(r300
, buffers
)) {
351 struct r300_surface
*surf
= r300_surface(fb
->cbufs
[0]);
353 hyperz
->zb_depthclearvalue
=
354 r300_depth_clear_cb_value(surf
->base
.format
, color
->f
);
356 width
= surf
->cbzb_width
;
357 height
= surf
->cbzb_height
;
359 r300
->cbzb_clear
= TRUE
;
360 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
365 enum pipe_format cformat
= fb
->nr_cbufs
? fb
->cbufs
[0]->format
: PIPE_FORMAT_NONE
;
366 /* Clear using the blitter. */
367 r300_blitter_begin(r300
, R300_CLEAR
);
368 util_blitter_clear(r300
->blitter
,
372 buffers
, cformat
, color
, depth
, stencil
);
373 r300_blitter_end(r300
);
374 } else if (r300
->zmask_clear
.dirty
||
375 r300
->hiz_clear
.dirty
||
376 r300
->cmask_clear
.dirty
) {
377 /* Just clear zmask and hiz now, this does not use the standard draw
379 /* Calculate zmask_clear and hiz_clear atom sizes. */
381 r300
->gpu_flush
.size
+
382 (r300
->zmask_clear
.dirty
? r300
->zmask_clear
.size
: 0) +
383 (r300
->hiz_clear
.dirty
? r300
->hiz_clear
.size
: 0) +
384 (r300
->cmask_clear
.dirty
? r300
->cmask_clear
.size
: 0) +
385 r300_get_num_cs_end_dwords(r300
);
387 /* Reserve CS space. */
388 if (dwords
> (RADEON_MAX_CMDBUF_DWORDS
- r300
->cs
->cdw
)) {
389 r300_flush(&r300
->context
, RADEON_FLUSH_ASYNC
, NULL
);
392 /* Emit clear packets. */
393 r300_emit_gpu_flush(r300
, r300
->gpu_flush
.size
, r300
->gpu_flush
.state
);
394 r300
->gpu_flush
.dirty
= FALSE
;
396 if (r300
->zmask_clear
.dirty
) {
397 r300_emit_zmask_clear(r300
, r300
->zmask_clear
.size
,
398 r300
->zmask_clear
.state
);
399 r300
->zmask_clear
.dirty
= FALSE
;
401 if (r300
->hiz_clear
.dirty
) {
402 r300_emit_hiz_clear(r300
, r300
->hiz_clear
.size
,
403 r300
->hiz_clear
.state
);
404 r300
->hiz_clear
.dirty
= FALSE
;
406 if (r300
->cmask_clear
.dirty
) {
407 r300_emit_cmask_clear(r300
, r300
->cmask_clear
.size
,
408 r300
->cmask_clear
.state
);
409 r300
->cmask_clear
.dirty
= FALSE
;
415 /* Disable CBZB clear. */
416 if (r300
->cbzb_clear
) {
417 r300
->cbzb_clear
= FALSE
;
418 hyperz
->zb_depthclearvalue
= hyperz_dcv
;
419 r300_mark_fb_state_dirty(r300
, R300_CHANGED_HYPERZ_FLAG
);
422 /* Enable fastfill and/or hiz.
424 * If we cleared zmask/hiz, it's in use now. The Hyper-Z state update
425 * looks if zmask/hiz is in use and programs hardware accordingly. */
426 if (r300
->zmask_in_use
|| r300
->hiz_in_use
) {
427 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
431 /* Clear a region of a color surface to a constant value. */
432 static void r300_clear_render_target(struct pipe_context
*pipe
,
433 struct pipe_surface
*dst
,
434 const union pipe_color_union
*color
,
435 unsigned dstx
, unsigned dsty
,
436 unsigned width
, unsigned height
)
438 struct r300_context
*r300
= r300_context(pipe
);
440 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
);
441 util_blitter_clear_render_target(r300
->blitter
, dst
, color
,
442 dstx
, dsty
, width
, height
);
443 r300_blitter_end(r300
);
446 /* Clear a region of a depth stencil surface. */
447 static void r300_clear_depth_stencil(struct pipe_context
*pipe
,
448 struct pipe_surface
*dst
,
449 unsigned clear_flags
,
452 unsigned dstx
, unsigned dsty
,
453 unsigned width
, unsigned height
)
455 struct r300_context
*r300
= r300_context(pipe
);
456 struct pipe_framebuffer_state
*fb
=
457 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
459 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
460 if (fb
->zsbuf
->texture
== dst
->texture
) {
461 r300_decompress_zmask(r300
);
465 /* XXX Do not decompress ZMask of the currently-set zbuffer. */
466 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
);
467 util_blitter_clear_depth_stencil(r300
->blitter
, dst
, clear_flags
, depth
, stencil
,
468 dstx
, dsty
, width
, height
);
469 r300_blitter_end(r300
);
472 void r300_decompress_zmask(struct r300_context
*r300
)
474 struct pipe_framebuffer_state
*fb
=
475 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
477 if (!r300
->zmask_in_use
|| r300
->locked_zbuffer
)
480 r300
->zmask_decompress
= TRUE
;
481 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
483 r300_blitter_begin(r300
, R300_DECOMPRESS
);
484 util_blitter_custom_clear_depth(r300
->blitter
, fb
->width
, fb
->height
, 0,
485 r300
->dsa_decompress_zmask
);
486 r300_blitter_end(r300
);
488 r300
->zmask_decompress
= FALSE
;
489 r300
->zmask_in_use
= FALSE
;
490 r300_mark_atom_dirty(r300
, &r300
->hyperz_state
);
493 void r300_decompress_zmask_locked_unsafe(struct r300_context
*r300
)
495 struct pipe_framebuffer_state fb
;
497 memset(&fb
, 0, sizeof(fb
));
498 fb
.width
= r300
->locked_zbuffer
->width
;
499 fb
.height
= r300
->locked_zbuffer
->height
;
500 fb
.zsbuf
= r300
->locked_zbuffer
;
502 r300
->context
.set_framebuffer_state(&r300
->context
, &fb
);
503 r300_decompress_zmask(r300
);
506 void r300_decompress_zmask_locked(struct r300_context
*r300
)
508 struct pipe_framebuffer_state saved_fb
;
510 memset(&saved_fb
, 0, sizeof(saved_fb
));
511 util_copy_framebuffer_state(&saved_fb
, r300
->fb_state
.state
);
512 r300_decompress_zmask_locked_unsafe(r300
);
513 r300
->context
.set_framebuffer_state(&r300
->context
, &saved_fb
);
514 util_unreference_framebuffer_state(&saved_fb
);
516 pipe_surface_reference(&r300
->locked_zbuffer
, NULL
);
519 bool r300_is_blit_supported(enum pipe_format format
)
521 const struct util_format_description
*desc
=
522 util_format_description(format
);
524 return desc
->layout
== UTIL_FORMAT_LAYOUT_PLAIN
||
525 desc
->layout
== UTIL_FORMAT_LAYOUT_S3TC
||
526 desc
->layout
== UTIL_FORMAT_LAYOUT_RGTC
;
529 /* Copy a block of pixels from one surface to another. */
530 static void r300_resource_copy_region(struct pipe_context
*pipe
,
531 struct pipe_resource
*dst
,
533 unsigned dstx
, unsigned dsty
, unsigned dstz
,
534 struct pipe_resource
*src
,
536 const struct pipe_box
*src_box
)
538 struct pipe_screen
*screen
= pipe
->screen
;
539 struct r300_context
*r300
= r300_context(pipe
);
540 struct pipe_framebuffer_state
*fb
=
541 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
542 unsigned src_width0
= r300_resource(src
)->tex
.width0
;
543 unsigned src_height0
= r300_resource(src
)->tex
.height0
;
544 unsigned dst_width0
= r300_resource(dst
)->tex
.width0
;
545 unsigned dst_height0
= r300_resource(dst
)->tex
.height0
;
547 struct pipe_box box
, dstbox
;
548 struct pipe_sampler_view src_templ
, *src_view
;
549 struct pipe_surface dst_templ
, *dst_view
;
551 /* Fallback for buffers. */
552 if ((dst
->target
== PIPE_BUFFER
&& src
->target
== PIPE_BUFFER
) ||
553 !r300_is_blit_supported(dst
->format
)) {
554 util_resource_copy_region(pipe
, dst
, dst_level
, dstx
, dsty
, dstz
,
555 src
, src_level
, src_box
);
559 /* Can't read MSAA textures. */
560 if (src
->nr_samples
> 1 || dst
->nr_samples
> 1) {
564 /* The code below changes the texture format so that the copy can be done
565 * on hardware. E.g. depth-stencil surfaces are copied as RGBA
568 util_blitter_default_dst_texture(&dst_templ
, dst
, dst_level
, dstz
);
569 util_blitter_default_src_texture(&src_templ
, src
, src_level
);
571 layout
= util_format_description(dst_templ
.format
)->layout
;
573 /* Handle non-renderable plain formats. */
574 if (layout
== UTIL_FORMAT_LAYOUT_PLAIN
&&
575 (!screen
->is_format_supported(screen
, src_templ
.format
, src
->target
,
577 PIPE_BIND_SAMPLER_VIEW
) ||
578 !screen
->is_format_supported(screen
, dst_templ
.format
, dst
->target
,
580 PIPE_BIND_RENDER_TARGET
))) {
581 switch (util_format_get_blocksize(dst_templ
.format
)) {
583 dst_templ
.format
= PIPE_FORMAT_I8_UNORM
;
586 dst_templ
.format
= PIPE_FORMAT_B4G4R4A4_UNORM
;
589 dst_templ
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
592 dst_templ
.format
= PIPE_FORMAT_R16G16B16A16_UNORM
;
595 debug_printf("r300: copy_region: Unhandled format: %s. Falling back to software.\n"
596 "r300: copy_region: Software fallback doesn't work for tiled textures.\n",
597 util_format_short_name(dst_templ
.format
));
599 src_templ
.format
= dst_templ
.format
;
602 /* Handle compressed formats. */
603 if (layout
== UTIL_FORMAT_LAYOUT_S3TC
||
604 layout
== UTIL_FORMAT_LAYOUT_RGTC
) {
605 assert(src_templ
.format
== dst_templ
.format
);
610 dst_width0
= align(dst_width0
, 4);
611 dst_height0
= align(dst_height0
, 4);
612 src_width0
= align(src_width0
, 4);
613 src_height0
= align(src_height0
, 4);
614 box
.width
= align(box
.width
, 4);
615 box
.height
= align(box
.height
, 4);
617 switch (util_format_get_blocksize(dst_templ
.format
)) {
619 /* one 4x4 pixel block has 8 bytes.
620 * we set 1 pixel = 4 bytes ===> 1 block corrensponds to 2 pixels. */
621 dst_templ
.format
= PIPE_FORMAT_R8G8B8A8_UNORM
;
622 dst_width0
= dst_width0
/ 2;
623 src_width0
= src_width0
/ 2;
629 /* one 4x4 pixel block has 16 bytes.
630 * we set 1 pixel = 4 bytes ===> 1 block corresponds to 4 pixels. */
631 dst_templ
.format
= PIPE_FORMAT_R8G8B8A8_UNORM
;
634 src_templ
.format
= dst_templ
.format
;
636 dst_height0
= dst_height0
/ 4;
637 src_height0
= src_height0
/ 4;
643 /* Fallback for textures. */
644 if (!screen
->is_format_supported(screen
, dst_templ
.format
,
645 dst
->target
, dst
->nr_samples
,
646 PIPE_BIND_RENDER_TARGET
) ||
647 !screen
->is_format_supported(screen
, src_templ
.format
,
648 src
->target
, src
->nr_samples
,
649 PIPE_BIND_SAMPLER_VIEW
)) {
650 assert(0 && "this shouldn't happen, update r300_is_blit_supported");
651 util_resource_copy_region(pipe
, dst
, dst_level
, dstx
, dsty
, dstz
,
652 src
, src_level
, src_box
);
656 /* Decompress ZMASK. */
657 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
658 if (fb
->zsbuf
->texture
== src
||
659 fb
->zsbuf
->texture
== dst
) {
660 r300_decompress_zmask(r300
);
664 dst_view
= r300_create_surface_custom(pipe
, dst
, &dst_templ
, dst_width0
, dst_height0
);
665 src_view
= r300_create_sampler_view_custom(pipe
, src
, &src_templ
, src_width0
, src_height0
);
667 u_box_3d(dstx
, dsty
, dstz
, abs(src_box
->width
), abs(src_box
->height
),
668 abs(src_box
->depth
), &dstbox
);
670 r300_blitter_begin(r300
, R300_COPY
);
671 util_blitter_blit_generic(r300
->blitter
, dst_view
, &dstbox
,
672 src_view
, src_box
, src_width0
, src_height0
,
673 PIPE_MASK_RGBAZS
, PIPE_TEX_FILTER_NEAREST
, NULL
,
675 r300_blitter_end(r300
);
677 pipe_surface_reference(&dst_view
, NULL
);
678 pipe_sampler_view_reference(&src_view
, NULL
);
681 static boolean
r300_is_simple_msaa_resolve(const struct pipe_blit_info
*info
)
683 unsigned dst_width
= u_minify(info
->dst
.resource
->width0
, info
->dst
.level
);
684 unsigned dst_height
= u_minify(info
->dst
.resource
->height0
, info
->dst
.level
);
686 return info
->dst
.resource
->format
== info
->src
.resource
->format
&&
687 info
->dst
.resource
->format
== info
->dst
.format
&&
688 info
->src
.resource
->format
== info
->src
.format
&&
689 !info
->scissor_enable
&&
690 info
->mask
== PIPE_MASK_RGBA
&&
691 dst_width
== info
->src
.resource
->width0
&&
692 dst_height
== info
->src
.resource
->height0
&&
693 info
->dst
.box
.x
== 0 &&
694 info
->dst
.box
.y
== 0 &&
695 info
->dst
.box
.width
== dst_width
&&
696 info
->dst
.box
.height
== dst_height
&&
697 info
->src
.box
.x
== 0 &&
698 info
->src
.box
.y
== 0 &&
699 info
->src
.box
.width
== dst_width
&&
700 info
->src
.box
.height
== dst_height
&&
701 (r300_resource(info
->dst
.resource
)->tex
.microtile
!= RADEON_LAYOUT_LINEAR
||
702 r300_resource(info
->dst
.resource
)->tex
.macrotile
[info
->dst
.level
] != RADEON_LAYOUT_LINEAR
);
705 static void r300_simple_msaa_resolve(struct pipe_context
*pipe
,
706 struct pipe_resource
*dst
,
709 struct pipe_resource
*src
,
710 enum pipe_format format
)
712 struct r300_context
*r300
= r300_context(pipe
);
713 struct r300_surface
*srcsurf
, *dstsurf
;
714 struct pipe_surface surf_tmpl
;
715 struct r300_aa_state
*aa
= (struct r300_aa_state
*)r300
->aa_state
.state
;
717 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
718 surf_tmpl
.format
= format
;
719 srcsurf
= r300_surface(pipe
->create_surface(pipe
, src
, &surf_tmpl
));
721 surf_tmpl
.format
= format
;
722 surf_tmpl
.u
.tex
.level
= dst_level
;
723 surf_tmpl
.u
.tex
.first_layer
=
724 surf_tmpl
.u
.tex
.last_layer
= dst_layer
;
725 dstsurf
= r300_surface(pipe
->create_surface(pipe
, dst
, &surf_tmpl
));
727 /* COLORPITCH should contain the tiling info of the resolve buffer.
728 * The tiling of the AA buffer isn't programmable anyway. */
729 srcsurf
->pitch
&= ~(R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
730 srcsurf
->pitch
|= dstsurf
->pitch
& (R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
732 /* Enable AA resolve. */
734 r300
->aa_state
.size
= 8;
735 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
737 /* Resolve the surface. */
738 r300_blitter_begin(r300
, R300_CLEAR_SURFACE
);
739 util_blitter_custom_color(r300
->blitter
, &srcsurf
->base
, NULL
);
740 r300_blitter_end(r300
);
742 /* Disable AA resolve. */
744 r300
->aa_state
.size
= 4;
745 r300_mark_atom_dirty(r300
, &r300
->aa_state
);
747 pipe_surface_reference((struct pipe_surface
**)&srcsurf
, NULL
);
748 pipe_surface_reference((struct pipe_surface
**)&dstsurf
, NULL
);
751 static void r300_msaa_resolve(struct pipe_context
*pipe
,
752 const struct pipe_blit_info
*info
)
754 struct r300_context
*r300
= r300_context(pipe
);
755 struct pipe_screen
*screen
= pipe
->screen
;
756 struct pipe_resource
*tmp
, templ
;
757 struct pipe_blit_info blit
;
759 assert(info
->src
.level
== 0);
760 assert(info
->src
.box
.z
== 0);
761 assert(info
->src
.box
.depth
== 1);
762 assert(info
->dst
.box
.depth
== 1);
764 if (r300_is_simple_msaa_resolve(info
)) {
765 r300_simple_msaa_resolve(pipe
, info
->dst
.resource
, info
->dst
.level
,
766 info
->dst
.box
.z
, info
->src
.resource
,
771 /* resolve into a temporary texture, then blit */
772 memset(&templ
, 0, sizeof(templ
));
773 templ
.target
= PIPE_TEXTURE_2D
;
774 templ
.format
= info
->src
.resource
->format
;
775 templ
.width0
= info
->src
.resource
->width0
;
776 templ
.height0
= info
->src
.resource
->height0
;
778 templ
.array_size
= 1;
779 templ
.usage
= PIPE_USAGE_STATIC
;
780 templ
.flags
= R300_RESOURCE_FORCE_MICROTILING
;
782 tmp
= screen
->resource_create(screen
, &templ
);
785 r300_simple_msaa_resolve(pipe
, tmp
, 0, 0, info
->src
.resource
,
790 blit
.src
.resource
= tmp
;
793 r300_blitter_begin(r300
, R300_BLIT
);
794 util_blitter_blit(r300
->blitter
, &blit
);
795 r300_blitter_end(r300
);
797 pipe_resource_reference(&tmp
, NULL
);
800 static void r300_blit(struct pipe_context
*pipe
,
801 const struct pipe_blit_info
*blit
)
803 struct r300_context
*r300
= r300_context(pipe
);
804 struct pipe_framebuffer_state
*fb
=
805 (struct pipe_framebuffer_state
*)r300
->fb_state
.state
;
806 struct pipe_blit_info info
= *blit
;
809 if (info
.src
.resource
->nr_samples
> 1 &&
810 info
.dst
.resource
->nr_samples
<= 1 &&
811 !util_format_is_depth_or_stencil(info
.src
.resource
->format
)) {
812 r300_msaa_resolve(pipe
, &info
);
816 /* Can't read MSAA textures. */
817 if (info
.src
.resource
->nr_samples
> 1) {
821 /* Blit a combined depth-stencil resource as color.
822 * S8Z24 is the only supported stencil format. */
823 if ((info
.mask
& PIPE_MASK_S
) &&
824 info
.src
.format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
&&
825 info
.dst
.format
== PIPE_FORMAT_S8_UINT_Z24_UNORM
) {
826 if (info
.dst
.resource
->nr_samples
> 1) {
827 /* Cannot do that with MSAA buffers. */
828 info
.mask
&= ~PIPE_MASK_S
;
829 if (!(info
.mask
& PIPE_MASK_Z
)) {
833 /* Single-sample buffer. */
834 info
.src
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
835 info
.dst
.format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
836 if (info
.mask
& PIPE_MASK_Z
) {
837 info
.mask
= PIPE_MASK_RGBA
; /* depth+stencil */
839 info
.mask
= PIPE_MASK_B
; /* stencil only */
844 /* Decompress ZMASK. */
845 if (r300
->zmask_in_use
&& !r300
->locked_zbuffer
) {
846 if (fb
->zsbuf
->texture
== info
.src
.resource
||
847 fb
->zsbuf
->texture
== info
.dst
.resource
) {
848 r300_decompress_zmask(r300
);
852 r300_blitter_begin(r300
, R300_BLIT
);
853 util_blitter_blit(r300
->blitter
, &info
);
854 r300_blitter_end(r300
);
857 void r300_init_blit_functions(struct r300_context
*r300
)
859 r300
->context
.clear
= r300_clear
;
860 r300
->context
.clear_render_target
= r300_clear_render_target
;
861 r300
->context
.clear_depth_stencil
= r300_clear_depth_stencil
;
862 r300
->context
.resource_copy_region
= r300_resource_copy_region
;
863 r300
->context
.blit
= r300_blit
;