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
);
83 * Deallocate/free a vertex/pixel buffer object.
84 * Called via glDeleteBuffersARB().
87 intel_bufferobj_free(struct gl_context
* ctx
, struct gl_buffer_object
*obj
)
89 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
93 /* Buffer objects are automatically unmapped when deleting according
94 * to the spec, but Mesa doesn't do UnmapBuffer for us at context destroy
95 * (though it does if you call glDeleteBuffers)
98 intel_bufferobj_unmap(ctx
, obj
);
100 free(intel_obj
->sys_buffer
);
102 drm_intel_bo_unreference(intel_obj
->buffer
);
109 * Allocate space for and store data in a buffer object. Any data that was
110 * previously stored in the buffer object is lost. If data is NULL,
111 * memory will be allocated, but no copy will occur.
112 * Called via ctx->Driver.BufferData().
113 * \return true for success, false if out of memory
116 intel_bufferobj_data(struct gl_context
* ctx
,
120 GLenum usage
, struct gl_buffer_object
*obj
)
122 struct intel_context
*intel
= intel_context(ctx
);
123 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
125 /* Part of the ABI, but this function doesn't use it.
131 intel_obj
->Base
.Size
= size
;
132 intel_obj
->Base
.Usage
= usage
;
134 assert(!obj
->Pointer
); /* Mesa should have unmapped it */
136 if (intel_obj
->buffer
!= NULL
)
137 release_buffer(intel_obj
);
139 free(intel_obj
->sys_buffer
);
140 intel_obj
->sys_buffer
= NULL
;
143 if (usage
== GL_DYNAMIC_DRAW
145 /* On pre-965, stick VBOs in system memory, as we're always doing
146 * swtnl with their contents anyway.
148 || target
== GL_ARRAY_BUFFER
|| target
== GL_ELEMENT_ARRAY_BUFFER
152 intel_obj
->sys_buffer
= malloc(size
);
153 if (intel_obj
->sys_buffer
!= NULL
) {
155 memcpy(intel_obj
->sys_buffer
, data
, size
);
159 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
160 if (!intel_obj
->buffer
)
164 drm_intel_bo_subdata(intel_obj
->buffer
, 0, size
, data
);
172 * Replace data in a subrange of buffer object. If the data range
173 * specified by size + offset extends beyond the end of the buffer or
174 * if data is NULL, no copy is performed.
175 * Called via glBufferSubDataARB().
178 intel_bufferobj_subdata(struct gl_context
* ctx
,
181 const GLvoid
* data
, struct gl_buffer_object
*obj
)
183 struct intel_context
*intel
= intel_context(ctx
);
184 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
192 /* If we have a single copy in system memory, update that */
193 if (intel_obj
->sys_buffer
) {
194 if (intel_obj
->source
)
195 release_buffer(intel_obj
);
197 if (intel_obj
->buffer
== NULL
) {
198 memcpy((char *)intel_obj
->sys_buffer
+ offset
, data
, size
);
202 free(intel_obj
->sys_buffer
);
203 intel_obj
->sys_buffer
= NULL
;
206 /* Otherwise we need to update the copy in video memory. */
208 drm_intel_bo_busy(intel_obj
->buffer
) ||
209 drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
);
211 /* replace the current busy bo with fresh data */
212 if (busy
&& size
== intel_obj
->Base
.Size
) {
213 drm_intel_bo_unreference(intel_obj
->buffer
);
214 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
215 drm_intel_bo_subdata(intel_obj
->buffer
, 0, size
, data
);
216 } else if (intel
->gen
< 6) {
218 drm_intel_bo
*temp_bo
;
220 temp_bo
= drm_intel_bo_alloc(intel
->bufmgr
, "subdata temp", size
, 64);
222 drm_intel_bo_subdata(temp_bo
, 0, size
, data
);
224 intel_emit_linear_blit(intel
,
225 intel_obj
->buffer
, offset
,
229 drm_intel_bo_unreference(temp_bo
);
231 drm_intel_bo_subdata(intel_obj
->buffer
, offset
, size
, data
);
234 /* Can't use the blit to modify the buffer in the middle of batch. */
235 if (drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
)) {
236 intel_batchbuffer_flush(intel
);
238 drm_intel_bo_subdata(intel_obj
->buffer
, offset
, size
, data
);
244 * Called via glGetBufferSubDataARB().
247 intel_bufferobj_get_subdata(struct gl_context
* ctx
,
250 GLvoid
* data
, struct gl_buffer_object
*obj
)
252 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
253 struct intel_context
*intel
= intel_context(ctx
);
256 if (intel_obj
->sys_buffer
)
257 memcpy(data
, (char *)intel_obj
->sys_buffer
+ offset
, size
);
259 if (drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
)) {
260 intel_batchbuffer_flush(intel
);
262 drm_intel_bo_get_subdata(intel_obj
->buffer
, offset
, size
, data
);
269 * Called via glMapBufferRange and glMapBuffer
271 * The goal of this extension is to allow apps to accumulate their rendering
272 * at the same time as they accumulate their buffer object. Without it,
273 * you'd end up blocking on execution of rendering every time you mapped
274 * the buffer to put new data in.
276 * We support it in 3 ways: If unsynchronized, then don't bother
277 * flushing the batchbuffer before mapping the buffer, which can save blocking
278 * in many cases. If we would still block, and they allow the whole buffer
279 * to be invalidated, then just allocate a new buffer to replace the old one.
280 * If not, and we'd block, and they allow the subrange of the buffer to be
281 * invalidated, then we can make a new little BO, let them write into that,
282 * and blit it into the real BO at unmap time.
285 intel_bufferobj_map_range(struct gl_context
* ctx
,
286 GLintptr offset
, GLsizeiptr length
,
287 GLbitfield access
, struct gl_buffer_object
*obj
)
289 struct intel_context
*intel
= intel_context(ctx
);
290 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
294 /* _mesa_MapBufferRange (GL entrypoint) sets these, but the vbo module also
295 * internally uses our functions directly.
297 obj
->Offset
= offset
;
298 obj
->Length
= length
;
299 obj
->AccessFlags
= access
;
301 if (intel_obj
->sys_buffer
) {
302 const bool read_only
=
303 (access
& (GL_MAP_READ_BIT
| GL_MAP_WRITE_BIT
)) == GL_MAP_READ_BIT
;
305 if (!read_only
&& intel_obj
->source
)
306 release_buffer(intel_obj
);
308 if (!intel_obj
->buffer
|| intel_obj
->source
) {
309 obj
->Pointer
= intel_obj
->sys_buffer
+ offset
;
313 free(intel_obj
->sys_buffer
);
314 intel_obj
->sys_buffer
= NULL
;
317 /* If the mapping is synchronized with other GL operations, flush
318 * the batchbuffer so that GEM knows about the buffer access for later
321 if (!(access
& GL_MAP_UNSYNCHRONIZED_BIT
) &&
322 drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
))
325 if (intel_obj
->buffer
== NULL
) {
330 /* If the user doesn't care about existing buffer contents and mapping
331 * would cause us to block, then throw out the old buffer.
333 if (!(access
& GL_MAP_UNSYNCHRONIZED_BIT
) &&
334 (access
& GL_MAP_INVALIDATE_BUFFER_BIT
) &&
335 drm_intel_bo_busy(intel_obj
->buffer
)) {
336 drm_intel_bo_unreference(intel_obj
->buffer
);
337 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
340 /* If the user is mapping a range of an active buffer object but
341 * doesn't require the current contents of that range, make a new
342 * BO, and we'll copy what they put in there out at unmap or
345 if ((access
& GL_MAP_INVALIDATE_RANGE_BIT
) &&
346 drm_intel_bo_busy(intel_obj
->buffer
)) {
347 if (access
& GL_MAP_FLUSH_EXPLICIT_BIT
) {
348 intel_obj
->range_map_buffer
= malloc(length
);
349 obj
->Pointer
= intel_obj
->range_map_buffer
;
351 intel_obj
->range_map_bo
= drm_intel_bo_alloc(intel
->bufmgr
,
354 if (!(access
& GL_MAP_READ_BIT
)) {
355 drm_intel_gem_bo_map_gtt(intel_obj
->range_map_bo
);
356 intel_obj
->mapped_gtt
= true;
358 drm_intel_bo_map(intel_obj
->range_map_bo
,
359 (access
& GL_MAP_WRITE_BIT
) != 0);
360 intel_obj
->mapped_gtt
= false;
362 obj
->Pointer
= intel_obj
->range_map_bo
->virtual;
367 if (!(access
& GL_MAP_READ_BIT
)) {
368 drm_intel_gem_bo_map_gtt(intel_obj
->buffer
);
369 intel_obj
->mapped_gtt
= true;
371 drm_intel_bo_map(intel_obj
->buffer
, (access
& GL_MAP_WRITE_BIT
) != 0);
372 intel_obj
->mapped_gtt
= false;
375 obj
->Pointer
= intel_obj
->buffer
->virtual + offset
;
379 /* Ideally we'd use a BO to avoid taking up cache space for the temporary
380 * data, but FlushMappedBufferRange may be followed by further writes to
381 * the pointer, so we would have to re-map after emitting our blit, which
382 * would defeat the point.
385 intel_bufferobj_flush_mapped_range(struct gl_context
*ctx
,
386 GLintptr offset
, GLsizeiptr length
,
387 struct gl_buffer_object
*obj
)
389 struct intel_context
*intel
= intel_context(ctx
);
390 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
391 drm_intel_bo
*temp_bo
;
393 /* Unless we're in the range map using a temporary system buffer,
394 * there's no work to do.
396 if (intel_obj
->range_map_buffer
== NULL
)
402 temp_bo
= drm_intel_bo_alloc(intel
->bufmgr
, "range map flush", length
, 64);
404 drm_intel_bo_subdata(temp_bo
, 0, length
, intel_obj
->range_map_buffer
);
406 intel_emit_linear_blit(intel
,
407 intel_obj
->buffer
, obj
->Offset
+ offset
,
411 drm_intel_bo_unreference(temp_bo
);
416 * Called via glUnmapBuffer().
419 intel_bufferobj_unmap(struct gl_context
* ctx
, struct gl_buffer_object
*obj
)
421 struct intel_context
*intel
= intel_context(ctx
);
422 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
425 assert(obj
->Pointer
);
426 if (intel_obj
->sys_buffer
!= NULL
) {
427 /* always keep the mapping around. */
428 } else if (intel_obj
->range_map_buffer
!= NULL
) {
429 /* Since we've emitted some blits to buffers that will (likely) be used
430 * in rendering operations in other cache domains in this batch, emit a
431 * flush. Once again, we wish for a domain tracker in libdrm to cover
432 * usage inside of a batchbuffer.
434 intel_batchbuffer_emit_mi_flush(intel
);
435 free(intel_obj
->range_map_buffer
);
436 intel_obj
->range_map_buffer
= NULL
;
437 } else if (intel_obj
->range_map_bo
!= NULL
) {
438 if (intel_obj
->mapped_gtt
) {
439 drm_intel_gem_bo_unmap_gtt(intel_obj
->range_map_bo
);
441 drm_intel_bo_unmap(intel_obj
->range_map_bo
);
444 intel_emit_linear_blit(intel
,
445 intel_obj
->buffer
, obj
->Offset
,
446 intel_obj
->range_map_bo
, 0,
449 /* Since we've emitted some blits to buffers that will (likely) be used
450 * in rendering operations in other cache domains in this batch, emit a
451 * flush. Once again, we wish for a domain tracker in libdrm to cover
452 * usage inside of a batchbuffer.
454 intel_batchbuffer_emit_mi_flush(intel
);
456 drm_intel_bo_unreference(intel_obj
->range_map_bo
);
457 intel_obj
->range_map_bo
= NULL
;
458 } else if (intel_obj
->buffer
!= NULL
) {
459 if (intel_obj
->mapped_gtt
) {
460 drm_intel_gem_bo_unmap_gtt(intel_obj
->buffer
);
462 drm_intel_bo_unmap(intel_obj
->buffer
);
473 intel_bufferobj_buffer(struct intel_context
*intel
,
474 struct intel_buffer_object
*intel_obj
,
477 if (intel_obj
->source
)
478 release_buffer(intel_obj
);
480 if (intel_obj
->buffer
== NULL
) {
481 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
482 drm_intel_bo_subdata(intel_obj
->buffer
,
483 0, intel_obj
->Base
.Size
,
484 intel_obj
->sys_buffer
);
486 free(intel_obj
->sys_buffer
);
487 intel_obj
->sys_buffer
= NULL
;
488 intel_obj
->offset
= 0;
491 return intel_obj
->buffer
;
494 #define INTEL_UPLOAD_SIZE (64*1024)
497 intel_upload_finish(struct intel_context
*intel
)
499 if (!intel
->upload
.bo
)
502 if (intel
->upload
.buffer_len
) {
503 drm_intel_bo_subdata(intel
->upload
.bo
,
504 intel
->upload
.buffer_offset
,
505 intel
->upload
.buffer_len
,
506 intel
->upload
.buffer
);
507 intel
->upload
.buffer_len
= 0;
510 drm_intel_bo_unreference(intel
->upload
.bo
);
511 intel
->upload
.bo
= NULL
;
514 static void wrap_buffers(struct intel_context
*intel
, GLuint size
)
516 intel_upload_finish(intel
);
518 if (size
< INTEL_UPLOAD_SIZE
)
519 size
= INTEL_UPLOAD_SIZE
;
521 intel
->upload
.bo
= drm_intel_bo_alloc(intel
->bufmgr
, "upload", size
, 0);
522 intel
->upload
.offset
= 0;
525 void intel_upload_data(struct intel_context
*intel
,
526 const void *ptr
, GLuint size
, GLuint align
,
527 drm_intel_bo
**return_bo
,
528 GLuint
*return_offset
)
532 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
533 if (intel
->upload
.bo
== NULL
|| base
+ size
> intel
->upload
.bo
->size
) {
534 wrap_buffers(intel
, size
);
538 drm_intel_bo_reference(intel
->upload
.bo
);
539 *return_bo
= intel
->upload
.bo
;
540 *return_offset
= base
;
542 delta
= base
- intel
->upload
.offset
;
543 if (intel
->upload
.buffer_len
&&
544 intel
->upload
.buffer_len
+ delta
+ size
> sizeof(intel
->upload
.buffer
))
546 drm_intel_bo_subdata(intel
->upload
.bo
,
547 intel
->upload
.buffer_offset
,
548 intel
->upload
.buffer_len
,
549 intel
->upload
.buffer
);
550 intel
->upload
.buffer_len
= 0;
553 if (size
< sizeof(intel
->upload
.buffer
))
555 if (intel
->upload
.buffer_len
== 0)
556 intel
->upload
.buffer_offset
= base
;
558 intel
->upload
.buffer_len
+= delta
;
560 memcpy(intel
->upload
.buffer
+ intel
->upload
.buffer_len
, ptr
, size
);
561 intel
->upload
.buffer_len
+= size
;
565 drm_intel_bo_subdata(intel
->upload
.bo
, base
, size
, ptr
);
568 intel
->upload
.offset
= base
+ size
;
571 void *intel_upload_map(struct intel_context
*intel
, GLuint size
, GLuint align
)
576 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
577 if (intel
->upload
.bo
== NULL
|| base
+ size
> intel
->upload
.bo
->size
) {
578 wrap_buffers(intel
, size
);
582 delta
= base
- intel
->upload
.offset
;
583 if (intel
->upload
.buffer_len
&&
584 intel
->upload
.buffer_len
+ delta
+ size
> sizeof(intel
->upload
.buffer
))
586 drm_intel_bo_subdata(intel
->upload
.bo
,
587 intel
->upload
.buffer_offset
,
588 intel
->upload
.buffer_len
,
589 intel
->upload
.buffer
);
590 intel
->upload
.buffer_len
= 0;
593 if (size
<= sizeof(intel
->upload
.buffer
)) {
594 if (intel
->upload
.buffer_len
== 0)
595 intel
->upload
.buffer_offset
= base
;
597 intel
->upload
.buffer_len
+= delta
;
599 ptr
= intel
->upload
.buffer
+ intel
->upload
.buffer_len
;
600 intel
->upload
.buffer_len
+= size
;
607 void intel_upload_unmap(struct intel_context
*intel
,
608 const void *ptr
, GLuint size
, GLuint align
,
609 drm_intel_bo
**return_bo
,
610 GLuint
*return_offset
)
614 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
615 if (size
> sizeof(intel
->upload
.buffer
)) {
616 drm_intel_bo_subdata(intel
->upload
.bo
, base
, size
, ptr
);
620 drm_intel_bo_reference(intel
->upload
.bo
);
621 *return_bo
= intel
->upload
.bo
;
622 *return_offset
= base
;
624 intel
->upload
.offset
= base
+ size
;
628 intel_bufferobj_source(struct intel_context
*intel
,
629 struct intel_buffer_object
*intel_obj
,
630 GLuint align
, GLuint
*offset
)
632 if (intel_obj
->buffer
== NULL
) {
633 intel_upload_data(intel
,
634 intel_obj
->sys_buffer
, intel_obj
->Base
.Size
, align
,
635 &intel_obj
->buffer
, &intel_obj
->offset
);
636 intel_obj
->source
= 1;
639 *offset
= intel_obj
->offset
;
640 return intel_obj
->buffer
;
644 intel_bufferobj_copy_subdata(struct gl_context
*ctx
,
645 struct gl_buffer_object
*src
,
646 struct gl_buffer_object
*dst
,
647 GLintptr read_offset
, GLintptr write_offset
,
650 struct intel_context
*intel
= intel_context(ctx
);
651 struct intel_buffer_object
*intel_src
= intel_buffer_object(src
);
652 struct intel_buffer_object
*intel_dst
= intel_buffer_object(dst
);
653 drm_intel_bo
*src_bo
, *dst_bo
;
659 /* If we're in system memory, just map and memcpy. */
660 if (intel_src
->sys_buffer
|| intel_dst
->sys_buffer
|| intel
->gen
>= 6) {
661 /* The same buffer may be used, but note that regions copied may
665 char *ptr
= intel_bufferobj_map_range(ctx
, 0, dst
->Size
,
666 GL_MAP_READ_BIT
, dst
);
667 memmove(ptr
+ write_offset
, ptr
+ read_offset
, size
);
668 intel_bufferobj_unmap(ctx
, dst
);
673 src_ptr
= intel_bufferobj_map_range(ctx
, 0, src
->Size
,
674 GL_MAP_READ_BIT
, src
);
675 dst_ptr
= intel_bufferobj_map_range(ctx
, 0, dst
->Size
,
676 GL_MAP_WRITE_BIT
, dst
);
678 memcpy(dst_ptr
+ write_offset
, src_ptr
+ read_offset
, size
);
680 intel_bufferobj_unmap(ctx
, src
);
681 intel_bufferobj_unmap(ctx
, dst
);
686 /* Otherwise, we have real BOs, so blit them. */
688 dst_bo
= intel_bufferobj_buffer(intel
, intel_dst
, INTEL_WRITE_PART
);
689 src_bo
= intel_bufferobj_source(intel
, intel_src
, 64, &src_offset
);
691 intel_emit_linear_blit(intel
,
692 dst_bo
, write_offset
,
693 src_bo
, read_offset
+ src_offset
, size
);
695 /* Since we've emitted some blits to buffers that will (likely) be used
696 * in rendering operations in other cache domains in this batch, emit a
697 * flush. Once again, we wish for a domain tracker in libdrm to cover
698 * usage inside of a batchbuffer.
700 intel_batchbuffer_emit_mi_flush(intel
);
703 #if FEATURE_APPLE_object_purgeable
705 intel_buffer_purgeable(drm_intel_bo
*buffer
)
710 retained
= drm_intel_bo_madvise (buffer
, I915_MADV_DONTNEED
);
712 return retained
? GL_VOLATILE_APPLE
: GL_RELEASED_APPLE
;
716 intel_buffer_object_purgeable(struct gl_context
* ctx
,
717 struct gl_buffer_object
*obj
,
720 struct intel_buffer_object
*intel_obj
= intel_buffer_object (obj
);
722 if (intel_obj
->buffer
!= NULL
)
723 return intel_buffer_purgeable(intel_obj
->buffer
);
725 if (option
== GL_RELEASED_APPLE
) {
726 if (intel_obj
->sys_buffer
!= NULL
) {
727 free(intel_obj
->sys_buffer
);
728 intel_obj
->sys_buffer
= NULL
;
731 return GL_RELEASED_APPLE
;
733 /* XXX Create the buffer and madvise(MADV_DONTNEED)? */
734 struct intel_context
*intel
= intel_context(ctx
);
735 drm_intel_bo
*bo
= intel_bufferobj_buffer(intel
, intel_obj
, INTEL_READ
);
737 return intel_buffer_purgeable(bo
);
742 intel_texture_object_purgeable(struct gl_context
* ctx
,
743 struct gl_texture_object
*obj
,
746 struct intel_texture_object
*intel
;
751 intel
= intel_texture_object(obj
);
752 if (intel
->mt
== NULL
|| intel
->mt
->region
== NULL
)
753 return GL_RELEASED_APPLE
;
755 return intel_buffer_purgeable(intel
->mt
->region
->bo
);
759 intel_render_object_purgeable(struct gl_context
* ctx
,
760 struct gl_renderbuffer
*obj
,
763 struct intel_renderbuffer
*intel
;
768 intel
= intel_renderbuffer(obj
);
769 if (intel
->region
== NULL
)
770 return GL_RELEASED_APPLE
;
772 return intel_buffer_purgeable(intel
->region
->bo
);
776 intel_buffer_unpurgeable(drm_intel_bo
*buffer
)
782 retained
= drm_intel_bo_madvise (buffer
, I915_MADV_WILLNEED
);
784 return retained
? GL_RETAINED_APPLE
: GL_UNDEFINED_APPLE
;
788 intel_buffer_object_unpurgeable(struct gl_context
* ctx
,
789 struct gl_buffer_object
*obj
,
795 return intel_buffer_unpurgeable(intel_buffer_object (obj
)->buffer
);
799 intel_texture_object_unpurgeable(struct gl_context
* ctx
,
800 struct gl_texture_object
*obj
,
803 struct intel_texture_object
*intel
;
808 intel
= intel_texture_object(obj
);
809 if (intel
->mt
== NULL
|| intel
->mt
->region
== NULL
)
810 return GL_UNDEFINED_APPLE
;
812 return intel_buffer_unpurgeable(intel
->mt
->region
->bo
);
816 intel_render_object_unpurgeable(struct gl_context
* ctx
,
817 struct gl_renderbuffer
*obj
,
820 struct intel_renderbuffer
*intel
;
825 intel
= intel_renderbuffer(obj
);
826 if (intel
->region
== NULL
)
827 return GL_UNDEFINED_APPLE
;
829 return intel_buffer_unpurgeable(intel
->region
->bo
);
834 intelInitBufferObjectFuncs(struct dd_function_table
*functions
)
836 functions
->NewBufferObject
= intel_bufferobj_alloc
;
837 functions
->DeleteBuffer
= intel_bufferobj_free
;
838 functions
->BufferData
= intel_bufferobj_data
;
839 functions
->BufferSubData
= intel_bufferobj_subdata
;
840 functions
->GetBufferSubData
= intel_bufferobj_get_subdata
;
841 functions
->MapBufferRange
= intel_bufferobj_map_range
;
842 functions
->FlushMappedBufferRange
= intel_bufferobj_flush_mapped_range
;
843 functions
->UnmapBuffer
= intel_bufferobj_unmap
;
844 functions
->CopyBufferSubData
= intel_bufferobj_copy_subdata
;
846 #if FEATURE_APPLE_object_purgeable
847 functions
->BufferObjectPurgeable
= intel_buffer_object_purgeable
;
848 functions
->TextureObjectPurgeable
= intel_texture_object_purgeable
;
849 functions
->RenderObjectPurgeable
= intel_render_object_purgeable
;
851 functions
->BufferObjectUnpurgeable
= intel_buffer_object_unpurgeable
;
852 functions
->TextureObjectUnpurgeable
= intel_texture_object_unpurgeable
;
853 functions
->RenderObjectUnpurgeable
= intel_render_object_unpurgeable
;