1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 #include "main/imports.h"
30 #include "main/mfeatures.h"
31 #include "main/mtypes.h"
32 #include "main/macros.h"
33 #include "main/bufferobj.h"
35 #include "intel_blit.h"
36 #include "intel_buffer_objects.h"
37 #include "intel_batchbuffer.h"
38 #include "intel_context.h"
39 #include "intel_fbo.h"
40 #include "intel_mipmap_tree.h"
41 #include "intel_regions.h"
44 intel_bufferobj_unmap(struct gl_context
* ctx
, struct gl_buffer_object
*obj
);
46 /** Allocates a new drm_intel_bo to store the data for the buffer object. */
48 intel_bufferobj_alloc_buffer(struct intel_context
*intel
,
49 struct intel_buffer_object
*intel_obj
)
51 intel_obj
->buffer
= drm_intel_bo_alloc(intel
->bufmgr
, "bufferobj",
52 intel_obj
->Base
.Size
, 64);
56 release_buffer(struct intel_buffer_object
*intel_obj
)
58 drm_intel_bo_unreference(intel_obj
->buffer
);
59 intel_obj
->buffer
= NULL
;
60 intel_obj
->offset
= 0;
61 intel_obj
->source
= 0;
65 * There is some duplication between mesa's bufferobjects and our
66 * bufmgr buffers. Both have an integer handle and a hashtable to
67 * lookup an opaque structure. It would be nice if the handles and
68 * internal structure where somehow shared.
70 static struct gl_buffer_object
*
71 intel_bufferobj_alloc(struct gl_context
* ctx
, GLuint name
, GLenum target
)
73 struct intel_buffer_object
*obj
= CALLOC_STRUCT(intel_buffer_object
);
75 _mesa_initialize_buffer_object(&obj
->Base
, name
, target
);
82 /* Break the COW tie to the region. The region gets to keep the data.
85 intel_bufferobj_release_region(struct intel_context
*intel
,
86 struct intel_buffer_object
*intel_obj
)
88 assert(intel_obj
->region
->buffer
== intel_obj
->buffer
);
89 intel_obj
->region
->pbo
= NULL
;
90 intel_obj
->region
= NULL
;
92 release_buffer(intel_obj
);
95 /* Break the COW tie to the region. Both the pbo and the region end
96 * up with a copy of the data.
99 intel_bufferobj_cow(struct intel_context
*intel
,
100 struct intel_buffer_object
*intel_obj
)
102 assert(intel_obj
->region
);
103 intel_region_cow(intel
, intel_obj
->region
);
108 * Deallocate/free a vertex/pixel buffer object.
109 * Called via glDeleteBuffersARB().
112 intel_bufferobj_free(struct gl_context
* ctx
, struct gl_buffer_object
*obj
)
114 struct intel_context
*intel
= intel_context(ctx
);
115 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
119 /* Buffer objects are automatically unmapped when deleting according
120 * to the spec, but Mesa doesn't do UnmapBuffer for us at context destroy
121 * (though it does if you call glDeleteBuffers)
124 intel_bufferobj_unmap(ctx
, obj
);
126 free(intel_obj
->sys_buffer
);
127 if (intel_obj
->region
) {
128 intel_bufferobj_release_region(intel
, intel_obj
);
131 drm_intel_bo_unreference(intel_obj
->buffer
);
138 * Allocate space for and store data in a buffer object. Any data that was
139 * previously stored in the buffer object is lost. If data is NULL,
140 * memory will be allocated, but no copy will occur.
141 * Called via ctx->Driver.BufferData().
142 * \return GL_TRUE for success, GL_FALSE if out of memory
145 intel_bufferobj_data(struct gl_context
* ctx
,
149 GLenum usage
, struct gl_buffer_object
*obj
)
151 struct intel_context
*intel
= intel_context(ctx
);
152 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
154 intel_obj
->Base
.Size
= size
;
155 intel_obj
->Base
.Usage
= usage
;
157 assert(!obj
->Pointer
); /* Mesa should have unmapped it */
159 if (intel_obj
->region
)
160 intel_bufferobj_release_region(intel
, intel_obj
);
162 if (intel_obj
->buffer
!= NULL
)
163 release_buffer(intel_obj
);
165 free(intel_obj
->sys_buffer
);
166 intel_obj
->sys_buffer
= NULL
;
169 if (usage
== GL_DYNAMIC_DRAW
171 /* On pre-965, stick VBOs in system memory, as we're always doing
172 * swtnl with their contents anyway.
174 || target
== GL_ARRAY_BUFFER
|| target
== GL_ELEMENT_ARRAY_BUFFER
178 intel_obj
->sys_buffer
= malloc(size
);
179 if (intel_obj
->sys_buffer
!= NULL
) {
181 memcpy(intel_obj
->sys_buffer
, data
, size
);
185 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
186 if (!intel_obj
->buffer
)
190 drm_intel_bo_subdata(intel_obj
->buffer
, 0, size
, data
);
198 * Replace data in a subrange of buffer object. If the data range
199 * specified by size + offset extends beyond the end of the buffer or
200 * if data is NULL, no copy is performed.
201 * Called via glBufferSubDataARB().
204 intel_bufferobj_subdata(struct gl_context
* ctx
,
207 const GLvoid
* data
, struct gl_buffer_object
*obj
)
209 struct intel_context
*intel
= intel_context(ctx
);
210 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
218 if (intel_obj
->region
)
219 intel_bufferobj_cow(intel
, intel_obj
);
221 /* If we have a single copy in system memory, update that */
222 if (intel_obj
->sys_buffer
) {
223 if (intel_obj
->source
)
224 release_buffer(intel_obj
);
226 if (intel_obj
->buffer
== NULL
) {
227 memcpy((char *)intel_obj
->sys_buffer
+ offset
, data
, size
);
231 free(intel_obj
->sys_buffer
);
232 intel_obj
->sys_buffer
= NULL
;
235 /* Otherwise we need to update the copy in video memory. */
237 drm_intel_bo_busy(intel_obj
->buffer
) ||
238 drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
);
240 /* replace the current busy bo with fresh data */
241 if (busy
&& size
== intel_obj
->Base
.Size
) {
242 drm_intel_bo_unreference(intel_obj
->buffer
);
243 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
244 drm_intel_bo_subdata(intel_obj
->buffer
, 0, size
, data
);
245 } else if (intel
->gen
< 6) {
247 drm_intel_bo
*temp_bo
;
249 temp_bo
= drm_intel_bo_alloc(intel
->bufmgr
, "subdata temp", size
, 64);
251 drm_intel_bo_subdata(temp_bo
, 0, size
, data
);
253 intel_emit_linear_blit(intel
,
254 intel_obj
->buffer
, offset
,
258 drm_intel_bo_unreference(temp_bo
);
260 drm_intel_bo_subdata(intel_obj
->buffer
, offset
, size
, data
);
263 /* Can't use the blit to modify the buffer in the middle of batch. */
264 if (drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
)) {
265 intel_batchbuffer_flush(intel
);
267 drm_intel_bo_subdata(intel_obj
->buffer
, offset
, size
, data
);
273 * Called via glGetBufferSubDataARB().
276 intel_bufferobj_get_subdata(struct gl_context
* ctx
,
279 GLvoid
* data
, struct gl_buffer_object
*obj
)
281 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
282 struct intel_context
*intel
= intel_context(ctx
);
285 if (intel_obj
->sys_buffer
)
286 memcpy(data
, (char *)intel_obj
->sys_buffer
+ offset
, size
);
288 if (drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
)) {
289 intel_batchbuffer_flush(intel
);
291 drm_intel_bo_get_subdata(intel_obj
->buffer
, offset
, size
, data
);
298 * Called via glMapBufferRange and glMapBuffer
300 * The goal of this extension is to allow apps to accumulate their rendering
301 * at the same time as they accumulate their buffer object. Without it,
302 * you'd end up blocking on execution of rendering every time you mapped
303 * the buffer to put new data in.
305 * We support it in 3 ways: If unsynchronized, then don't bother
306 * flushing the batchbuffer before mapping the buffer, which can save blocking
307 * in many cases. If we would still block, and they allow the whole buffer
308 * to be invalidated, then just allocate a new buffer to replace the old one.
309 * If not, and we'd block, and they allow the subrange of the buffer to be
310 * invalidated, then we can make a new little BO, let them write into that,
311 * and blit it into the real BO at unmap time.
314 intel_bufferobj_map_range(struct gl_context
* ctx
,
315 GLintptr offset
, GLsizeiptr length
,
316 GLbitfield access
, struct gl_buffer_object
*obj
)
318 struct intel_context
*intel
= intel_context(ctx
);
319 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
323 /* _mesa_MapBufferRange (GL entrypoint) sets these, but the vbo module also
324 * internally uses our functions directly.
326 obj
->Offset
= offset
;
327 obj
->Length
= length
;
328 obj
->AccessFlags
= access
;
330 if (intel_obj
->sys_buffer
) {
331 const bool read_only
=
332 (access
& (GL_MAP_READ_BIT
| GL_MAP_WRITE_BIT
)) == GL_MAP_READ_BIT
;
334 if (!read_only
&& intel_obj
->source
)
335 release_buffer(intel_obj
);
337 if (!intel_obj
->buffer
|| intel_obj
->source
) {
338 obj
->Pointer
= intel_obj
->sys_buffer
+ offset
;
342 free(intel_obj
->sys_buffer
);
343 intel_obj
->sys_buffer
= NULL
;
346 if (intel_obj
->region
)
347 intel_bufferobj_cow(intel
, intel_obj
);
349 /* If the mapping is synchronized with other GL operations, flush
350 * the batchbuffer so that GEM knows about the buffer access for later
353 if (!(access
& GL_MAP_UNSYNCHRONIZED_BIT
) &&
354 drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
))
357 if (intel_obj
->buffer
== NULL
) {
362 /* If the user doesn't care about existing buffer contents and mapping
363 * would cause us to block, then throw out the old buffer.
365 if (!(access
& GL_MAP_UNSYNCHRONIZED_BIT
) &&
366 (access
& GL_MAP_INVALIDATE_BUFFER_BIT
) &&
367 drm_intel_bo_busy(intel_obj
->buffer
)) {
368 drm_intel_bo_unreference(intel_obj
->buffer
);
369 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
372 /* If the user is mapping a range of an active buffer object but
373 * doesn't require the current contents of that range, make a new
374 * BO, and we'll copy what they put in there out at unmap or
377 if ((access
& GL_MAP_INVALIDATE_RANGE_BIT
) &&
378 drm_intel_bo_busy(intel_obj
->buffer
)) {
379 if (access
& GL_MAP_FLUSH_EXPLICIT_BIT
) {
380 intel_obj
->range_map_buffer
= malloc(length
);
381 obj
->Pointer
= intel_obj
->range_map_buffer
;
383 intel_obj
->range_map_bo
= drm_intel_bo_alloc(intel
->bufmgr
,
386 if (!(access
& GL_MAP_READ_BIT
)) {
387 drm_intel_gem_bo_map_gtt(intel_obj
->range_map_bo
);
388 intel_obj
->mapped_gtt
= GL_TRUE
;
390 drm_intel_bo_map(intel_obj
->range_map_bo
,
391 (access
& GL_MAP_WRITE_BIT
) != 0);
392 intel_obj
->mapped_gtt
= GL_FALSE
;
394 obj
->Pointer
= intel_obj
->range_map_bo
->virtual;
399 if (!(access
& GL_MAP_READ_BIT
)) {
400 drm_intel_gem_bo_map_gtt(intel_obj
->buffer
);
401 intel_obj
->mapped_gtt
= GL_TRUE
;
403 drm_intel_bo_map(intel_obj
->buffer
, (access
& GL_MAP_WRITE_BIT
) != 0);
404 intel_obj
->mapped_gtt
= GL_FALSE
;
407 obj
->Pointer
= intel_obj
->buffer
->virtual + offset
;
411 /* Ideally we'd use a BO to avoid taking up cache space for the temporary
412 * data, but FlushMappedBufferRange may be followed by further writes to
413 * the pointer, so we would have to re-map after emitting our blit, which
414 * would defeat the point.
417 intel_bufferobj_flush_mapped_range(struct gl_context
*ctx
,
418 GLintptr offset
, GLsizeiptr length
,
419 struct gl_buffer_object
*obj
)
421 struct intel_context
*intel
= intel_context(ctx
);
422 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
423 drm_intel_bo
*temp_bo
;
425 /* Unless we're in the range map using a temporary system buffer,
426 * there's no work to do.
428 if (intel_obj
->range_map_buffer
== NULL
)
434 temp_bo
= drm_intel_bo_alloc(intel
->bufmgr
, "range map flush", length
, 64);
436 drm_intel_bo_subdata(temp_bo
, 0, length
, intel_obj
->range_map_buffer
);
438 intel_emit_linear_blit(intel
,
439 intel_obj
->buffer
, obj
->Offset
+ offset
,
443 drm_intel_bo_unreference(temp_bo
);
448 * Called via glUnmapBuffer().
451 intel_bufferobj_unmap(struct gl_context
* ctx
, struct gl_buffer_object
*obj
)
453 struct intel_context
*intel
= intel_context(ctx
);
454 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
457 assert(obj
->Pointer
);
458 if (intel_obj
->sys_buffer
!= NULL
) {
459 /* always keep the mapping around. */
460 } else if (intel_obj
->range_map_buffer
!= NULL
) {
461 /* Since we've emitted some blits to buffers that will (likely) be used
462 * in rendering operations in other cache domains in this batch, emit a
463 * flush. Once again, we wish for a domain tracker in libdrm to cover
464 * usage inside of a batchbuffer.
466 intel_batchbuffer_emit_mi_flush(intel
);
467 free(intel_obj
->range_map_buffer
);
468 intel_obj
->range_map_buffer
= NULL
;
469 } else if (intel_obj
->range_map_bo
!= NULL
) {
470 if (intel_obj
->mapped_gtt
) {
471 drm_intel_gem_bo_unmap_gtt(intel_obj
->range_map_bo
);
473 drm_intel_bo_unmap(intel_obj
->range_map_bo
);
476 intel_emit_linear_blit(intel
,
477 intel_obj
->buffer
, obj
->Offset
,
478 intel_obj
->range_map_bo
, 0,
481 /* Since we've emitted some blits to buffers that will (likely) be used
482 * in rendering operations in other cache domains in this batch, emit a
483 * flush. Once again, we wish for a domain tracker in libdrm to cover
484 * usage inside of a batchbuffer.
486 intel_batchbuffer_emit_mi_flush(intel
);
488 drm_intel_bo_unreference(intel_obj
->range_map_bo
);
489 intel_obj
->range_map_bo
= NULL
;
490 } else if (intel_obj
->buffer
!= NULL
) {
491 if (intel_obj
->mapped_gtt
) {
492 drm_intel_gem_bo_unmap_gtt(intel_obj
->buffer
);
494 drm_intel_bo_unmap(intel_obj
->buffer
);
505 intel_bufferobj_buffer(struct intel_context
*intel
,
506 struct intel_buffer_object
*intel_obj
,
509 if (intel_obj
->region
) {
510 if (flag
== INTEL_WRITE_PART
)
511 intel_bufferobj_cow(intel
, intel_obj
);
512 else if (flag
== INTEL_WRITE_FULL
) {
513 intel_bufferobj_release_region(intel
, intel_obj
);
514 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
518 if (intel_obj
->source
)
519 release_buffer(intel_obj
);
521 if (intel_obj
->buffer
== NULL
) {
522 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
523 drm_intel_bo_subdata(intel_obj
->buffer
,
524 0, intel_obj
->Base
.Size
,
525 intel_obj
->sys_buffer
);
527 free(intel_obj
->sys_buffer
);
528 intel_obj
->sys_buffer
= NULL
;
529 intel_obj
->offset
= 0;
532 return intel_obj
->buffer
;
535 #define INTEL_UPLOAD_SIZE (64*1024)
538 intel_upload_finish(struct intel_context
*intel
)
540 if (!intel
->upload
.bo
)
543 if (intel
->upload
.buffer_len
) {
544 drm_intel_bo_subdata(intel
->upload
.bo
,
545 intel
->upload
.buffer_offset
,
546 intel
->upload
.buffer_len
,
547 intel
->upload
.buffer
);
548 intel
->upload
.buffer_len
= 0;
551 drm_intel_bo_unreference(intel
->upload
.bo
);
552 intel
->upload
.bo
= NULL
;
555 static void wrap_buffers(struct intel_context
*intel
, GLuint size
)
557 intel_upload_finish(intel
);
559 if (size
< INTEL_UPLOAD_SIZE
)
560 size
= INTEL_UPLOAD_SIZE
;
562 intel
->upload
.bo
= drm_intel_bo_alloc(intel
->bufmgr
, "upload", size
, 0);
563 intel
->upload
.offset
= 0;
566 void intel_upload_data(struct intel_context
*intel
,
567 const void *ptr
, GLuint size
, GLuint align
,
568 drm_intel_bo
**return_bo
,
569 GLuint
*return_offset
)
573 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
574 if (intel
->upload
.bo
== NULL
|| base
+ size
> intel
->upload
.bo
->size
) {
575 wrap_buffers(intel
, size
);
579 drm_intel_bo_reference(intel
->upload
.bo
);
580 *return_bo
= intel
->upload
.bo
;
581 *return_offset
= base
;
583 delta
= base
- intel
->upload
.offset
;
584 if (intel
->upload
.buffer_len
&&
585 intel
->upload
.buffer_len
+ delta
+ size
> sizeof(intel
->upload
.buffer
))
587 drm_intel_bo_subdata(intel
->upload
.bo
,
588 intel
->upload
.buffer_offset
,
589 intel
->upload
.buffer_len
,
590 intel
->upload
.buffer
);
591 intel
->upload
.buffer_len
= 0;
594 if (size
< sizeof(intel
->upload
.buffer
))
596 if (intel
->upload
.buffer_len
== 0)
597 intel
->upload
.buffer_offset
= base
;
599 intel
->upload
.buffer_len
+= delta
;
601 memcpy(intel
->upload
.buffer
+ intel
->upload
.buffer_len
, ptr
, size
);
602 intel
->upload
.buffer_len
+= size
;
606 drm_intel_bo_subdata(intel
->upload
.bo
, base
, size
, ptr
);
609 intel
->upload
.offset
= base
+ size
;
612 void *intel_upload_map(struct intel_context
*intel
, GLuint size
, GLuint align
)
617 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
618 if (intel
->upload
.bo
== NULL
|| base
+ size
> intel
->upload
.bo
->size
) {
619 wrap_buffers(intel
, size
);
623 delta
= base
- intel
->upload
.offset
;
624 if (intel
->upload
.buffer_len
&&
625 intel
->upload
.buffer_len
+ delta
+ size
> sizeof(intel
->upload
.buffer
))
627 drm_intel_bo_subdata(intel
->upload
.bo
,
628 intel
->upload
.buffer_offset
,
629 intel
->upload
.buffer_len
,
630 intel
->upload
.buffer
);
631 intel
->upload
.buffer_len
= 0;
634 if (size
<= sizeof(intel
->upload
.buffer
)) {
635 if (intel
->upload
.buffer_len
== 0)
636 intel
->upload
.buffer_offset
= base
;
638 intel
->upload
.buffer_len
+= delta
;
640 ptr
= intel
->upload
.buffer
+ intel
->upload
.buffer_len
;
641 intel
->upload
.buffer_len
+= size
;
648 void intel_upload_unmap(struct intel_context
*intel
,
649 const void *ptr
, GLuint size
, GLuint align
,
650 drm_intel_bo
**return_bo
,
651 GLuint
*return_offset
)
655 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
656 if (size
> sizeof(intel
->upload
.buffer
)) {
657 drm_intel_bo_subdata(intel
->upload
.bo
, base
, size
, ptr
);
661 drm_intel_bo_reference(intel
->upload
.bo
);
662 *return_bo
= intel
->upload
.bo
;
663 *return_offset
= base
;
665 intel
->upload
.offset
= base
+ size
;
669 intel_bufferobj_source(struct intel_context
*intel
,
670 struct intel_buffer_object
*intel_obj
,
671 GLuint align
, GLuint
*offset
)
673 if (intel_obj
->buffer
== NULL
) {
674 intel_upload_data(intel
,
675 intel_obj
->sys_buffer
, intel_obj
->Base
.Size
, align
,
676 &intel_obj
->buffer
, &intel_obj
->offset
);
677 intel_obj
->source
= 1;
680 *offset
= intel_obj
->offset
;
681 return intel_obj
->buffer
;
685 intel_bufferobj_copy_subdata(struct gl_context
*ctx
,
686 struct gl_buffer_object
*src
,
687 struct gl_buffer_object
*dst
,
688 GLintptr read_offset
, GLintptr write_offset
,
691 struct intel_context
*intel
= intel_context(ctx
);
692 struct intel_buffer_object
*intel_src
= intel_buffer_object(src
);
693 struct intel_buffer_object
*intel_dst
= intel_buffer_object(dst
);
694 drm_intel_bo
*src_bo
, *dst_bo
;
700 /* If we're in system memory, just map and memcpy. */
701 if (intel_src
->sys_buffer
|| intel_dst
->sys_buffer
|| intel
->gen
>= 6) {
702 /* The same buffer may be used, but note that regions copied may
706 char *ptr
= intel_bufferobj_map_range(ctx
, 0, dst
->Size
,
707 GL_MAP_READ_BIT
, dst
);
708 memmove(ptr
+ write_offset
, ptr
+ read_offset
, size
);
709 intel_bufferobj_unmap(ctx
, dst
);
714 src_ptr
= intel_bufferobj_map_range(ctx
, 0, src
->Size
,
715 GL_MAP_READ_BIT
, src
);
716 dst_ptr
= intel_bufferobj_map_range(ctx
, 0, dst
->Size
,
717 GL_MAP_WRITE_BIT
, dst
);
719 memcpy(dst_ptr
+ write_offset
, src_ptr
+ read_offset
, size
);
721 intel_bufferobj_unmap(ctx
, src
);
722 intel_bufferobj_unmap(ctx
, dst
);
727 /* Otherwise, we have real BOs, so blit them. */
729 dst_bo
= intel_bufferobj_buffer(intel
, intel_dst
, INTEL_WRITE_PART
);
730 src_bo
= intel_bufferobj_source(intel
, intel_src
, 64, &src_offset
);
732 intel_emit_linear_blit(intel
,
733 dst_bo
, write_offset
,
734 src_bo
, read_offset
+ src_offset
, size
);
736 /* Since we've emitted some blits to buffers that will (likely) be used
737 * in rendering operations in other cache domains in this batch, emit a
738 * flush. Once again, we wish for a domain tracker in libdrm to cover
739 * usage inside of a batchbuffer.
741 intel_batchbuffer_emit_mi_flush(intel
);
744 #if FEATURE_APPLE_object_purgeable
746 intel_buffer_purgeable(struct gl_context
* ctx
,
747 drm_intel_bo
*buffer
,
753 retained
= drm_intel_bo_madvise (buffer
, I915_MADV_DONTNEED
);
755 return retained
? GL_VOLATILE_APPLE
: GL_RELEASED_APPLE
;
759 intel_buffer_object_purgeable(struct gl_context
* ctx
,
760 struct gl_buffer_object
*obj
,
763 struct intel_buffer_object
*intel
;
765 intel
= intel_buffer_object (obj
);
766 if (intel
->buffer
!= NULL
)
767 return intel_buffer_purgeable (ctx
, intel
->buffer
, option
);
769 if (option
== GL_RELEASED_APPLE
) {
770 if (intel
->sys_buffer
!= NULL
) {
771 free(intel
->sys_buffer
);
772 intel
->sys_buffer
= NULL
;
775 return GL_RELEASED_APPLE
;
777 /* XXX Create the buffer and madvise(MADV_DONTNEED)? */
778 return intel_buffer_purgeable (ctx
,
779 intel_bufferobj_buffer(intel_context(ctx
),
786 intel_texture_object_purgeable(struct gl_context
* ctx
,
787 struct gl_texture_object
*obj
,
790 struct intel_texture_object
*intel
;
792 intel
= intel_texture_object(obj
);
793 if (intel
->mt
== NULL
|| intel
->mt
->region
== NULL
)
794 return GL_RELEASED_APPLE
;
796 return intel_buffer_purgeable (ctx
, intel
->mt
->region
->buffer
, option
);
800 intel_render_object_purgeable(struct gl_context
* ctx
,
801 struct gl_renderbuffer
*obj
,
804 struct intel_renderbuffer
*intel
;
806 intel
= intel_renderbuffer(obj
);
807 if (intel
->region
== NULL
)
808 return GL_RELEASED_APPLE
;
810 return intel_buffer_purgeable (ctx
, intel
->region
->buffer
, option
);
814 intel_buffer_unpurgeable(struct gl_context
* ctx
,
815 drm_intel_bo
*buffer
,
822 retained
= drm_intel_bo_madvise (buffer
, I915_MADV_WILLNEED
);
824 return retained
? GL_RETAINED_APPLE
: GL_UNDEFINED_APPLE
;
828 intel_buffer_object_unpurgeable(struct gl_context
* ctx
,
829 struct gl_buffer_object
*obj
,
832 return intel_buffer_unpurgeable (ctx
, intel_buffer_object (obj
)->buffer
, option
);
836 intel_texture_object_unpurgeable(struct gl_context
* ctx
,
837 struct gl_texture_object
*obj
,
840 struct intel_texture_object
*intel
;
842 intel
= intel_texture_object(obj
);
843 if (intel
->mt
== NULL
|| intel
->mt
->region
== NULL
)
844 return GL_UNDEFINED_APPLE
;
846 return intel_buffer_unpurgeable (ctx
, intel
->mt
->region
->buffer
, option
);
850 intel_render_object_unpurgeable(struct gl_context
* ctx
,
851 struct gl_renderbuffer
*obj
,
854 struct intel_renderbuffer
*intel
;
856 intel
= intel_renderbuffer(obj
);
857 if (intel
->region
== NULL
)
858 return GL_UNDEFINED_APPLE
;
860 return intel_buffer_unpurgeable (ctx
, intel
->region
->buffer
, option
);
865 intelInitBufferObjectFuncs(struct dd_function_table
*functions
)
867 functions
->NewBufferObject
= intel_bufferobj_alloc
;
868 functions
->DeleteBuffer
= intel_bufferobj_free
;
869 functions
->BufferData
= intel_bufferobj_data
;
870 functions
->BufferSubData
= intel_bufferobj_subdata
;
871 functions
->GetBufferSubData
= intel_bufferobj_get_subdata
;
872 functions
->MapBufferRange
= intel_bufferobj_map_range
;
873 functions
->FlushMappedBufferRange
= intel_bufferobj_flush_mapped_range
;
874 functions
->UnmapBuffer
= intel_bufferobj_unmap
;
875 functions
->CopyBufferSubData
= intel_bufferobj_copy_subdata
;
877 #if FEATURE_APPLE_object_purgeable
878 functions
->BufferObjectPurgeable
= intel_buffer_object_purgeable
;
879 functions
->TextureObjectPurgeable
= intel_texture_object_purgeable
;
880 functions
->RenderObjectPurgeable
= intel_render_object_purgeable
;
882 functions
->BufferObjectUnpurgeable
= intel_buffer_object_unpurgeable
;
883 functions
->TextureObjectUnpurgeable
= intel_texture_object_unpurgeable
;
884 functions
->RenderObjectUnpurgeable
= intel_render_object_unpurgeable
;