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/mtypes.h"
31 #include "main/macros.h"
32 #include "main/bufferobj.h"
34 #include "intel_blit.h"
35 #include "intel_buffer_objects.h"
36 #include "intel_batchbuffer.h"
37 #include "intel_context.h"
38 #include "intel_fbo.h"
39 #include "intel_mipmap_tree.h"
40 #include "intel_regions.h"
43 #include "brw_context.h"
47 intel_bufferobj_unmap(struct gl_context
* ctx
, struct gl_buffer_object
*obj
);
49 /** Allocates a new drm_intel_bo to store the data for the buffer object. */
51 intel_bufferobj_alloc_buffer(struct intel_context
*intel
,
52 struct intel_buffer_object
*intel_obj
)
54 intel_obj
->buffer
= drm_intel_bo_alloc(intel
->bufmgr
, "bufferobj",
55 intel_obj
->Base
.Size
, 64);
58 /* the buffer might be bound as a uniform buffer, need to update it
61 struct brw_context
*brw
= brw_context(&intel
->ctx
);
62 brw
->state
.dirty
.brw
|= BRW_NEW_UNIFORM_BUFFER
;
68 release_buffer(struct intel_buffer_object
*intel_obj
)
70 drm_intel_bo_unreference(intel_obj
->buffer
);
71 intel_obj
->buffer
= NULL
;
72 intel_obj
->offset
= 0;
73 intel_obj
->source
= 0;
77 * There is some duplication between mesa's bufferobjects and our
78 * bufmgr buffers. Both have an integer handle and a hashtable to
79 * lookup an opaque structure. It would be nice if the handles and
80 * internal structure where somehow shared.
82 static struct gl_buffer_object
*
83 intel_bufferobj_alloc(struct gl_context
* ctx
, GLuint name
, GLenum target
)
85 struct intel_buffer_object
*obj
= CALLOC_STRUCT(intel_buffer_object
);
87 _mesa_initialize_buffer_object(ctx
, &obj
->Base
, name
, target
);
95 * Deallocate/free a vertex/pixel buffer object.
96 * Called via glDeleteBuffersARB().
99 intel_bufferobj_free(struct gl_context
* ctx
, struct gl_buffer_object
*obj
)
101 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
105 /* Buffer objects are automatically unmapped when deleting according
106 * to the spec, but Mesa doesn't do UnmapBuffer for us at context destroy
107 * (though it does if you call glDeleteBuffers)
110 intel_bufferobj_unmap(ctx
, obj
);
112 free(intel_obj
->sys_buffer
);
114 drm_intel_bo_unreference(intel_obj
->buffer
);
121 * Allocate space for and store data in a buffer object. Any data that was
122 * previously stored in the buffer object is lost. If data is NULL,
123 * memory will be allocated, but no copy will occur.
124 * Called via ctx->Driver.BufferData().
125 * \return true for success, false if out of memory
128 intel_bufferobj_data(struct gl_context
* ctx
,
132 GLenum usage
, struct gl_buffer_object
*obj
)
134 struct intel_context
*intel
= intel_context(ctx
);
135 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
137 /* Part of the ABI, but this function doesn't use it.
143 intel_obj
->Base
.Size
= size
;
144 intel_obj
->Base
.Usage
= usage
;
146 assert(!obj
->Pointer
); /* Mesa should have unmapped it */
148 if (intel_obj
->buffer
!= NULL
)
149 release_buffer(intel_obj
);
151 free(intel_obj
->sys_buffer
);
152 intel_obj
->sys_buffer
= NULL
;
156 /* On pre-965, stick VBOs in system memory, as we're always doing
157 * swtnl with their contents anyway.
159 if (target
== GL_ARRAY_BUFFER
|| target
== GL_ELEMENT_ARRAY_BUFFER
) {
160 intel_obj
->sys_buffer
= malloc(size
);
161 if (intel_obj
->sys_buffer
!= NULL
) {
163 memcpy(intel_obj
->sys_buffer
, data
, size
);
168 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
169 if (!intel_obj
->buffer
)
173 drm_intel_bo_subdata(intel_obj
->buffer
, 0, size
, data
);
181 * Replace data in a subrange of buffer object. If the data range
182 * specified by size + offset extends beyond the end of the buffer or
183 * if data is NULL, no copy is performed.
184 * Called via glBufferSubDataARB().
187 intel_bufferobj_subdata(struct gl_context
* ctx
,
190 const GLvoid
* data
, struct gl_buffer_object
*obj
)
192 struct intel_context
*intel
= intel_context(ctx
);
193 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
201 /* If we have a single copy in system memory, update that */
202 if (intel_obj
->sys_buffer
) {
203 if (intel_obj
->source
)
204 release_buffer(intel_obj
);
206 if (intel_obj
->buffer
== NULL
) {
207 memcpy((char *)intel_obj
->sys_buffer
+ offset
, data
, size
);
211 free(intel_obj
->sys_buffer
);
212 intel_obj
->sys_buffer
= NULL
;
215 /* Otherwise we need to update the copy in video memory. */
217 drm_intel_bo_busy(intel_obj
->buffer
) ||
218 drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
);
221 if (size
== intel_obj
->Base
.Size
) {
222 /* Replace the current busy bo with fresh data. */
223 drm_intel_bo_unreference(intel_obj
->buffer
);
224 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
225 drm_intel_bo_subdata(intel_obj
->buffer
, 0, size
, data
);
227 perf_debug("Using a blit copy to avoid stalling on %ldb "
228 "glBufferSubData() to a busy buffer object.\n",
230 drm_intel_bo
*temp_bo
=
231 drm_intel_bo_alloc(intel
->bufmgr
, "subdata temp", size
, 64);
233 drm_intel_bo_subdata(temp_bo
, 0, size
, data
);
235 intel_emit_linear_blit(intel
,
236 intel_obj
->buffer
, offset
,
240 drm_intel_bo_unreference(temp_bo
);
243 drm_intel_bo_subdata(intel_obj
->buffer
, offset
, size
, data
);
249 * Called via glGetBufferSubDataARB().
252 intel_bufferobj_get_subdata(struct gl_context
* ctx
,
255 GLvoid
* data
, struct gl_buffer_object
*obj
)
257 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
258 struct intel_context
*intel
= intel_context(ctx
);
261 if (intel_obj
->sys_buffer
)
262 memcpy(data
, (char *)intel_obj
->sys_buffer
+ offset
, size
);
264 if (drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
)) {
265 intel_batchbuffer_flush(intel
);
267 drm_intel_bo_get_subdata(intel_obj
->buffer
, offset
, size
, data
);
274 * Called via glMapBufferRange and glMapBuffer
276 * The goal of this extension is to allow apps to accumulate their rendering
277 * at the same time as they accumulate their buffer object. Without it,
278 * you'd end up blocking on execution of rendering every time you mapped
279 * the buffer to put new data in.
281 * We support it in 3 ways: If unsynchronized, then don't bother
282 * flushing the batchbuffer before mapping the buffer, which can save blocking
283 * in many cases. If we would still block, and they allow the whole buffer
284 * to be invalidated, then just allocate a new buffer to replace the old one.
285 * If not, and we'd block, and they allow the subrange of the buffer to be
286 * invalidated, then we can make a new little BO, let them write into that,
287 * and blit it into the real BO at unmap time.
290 intel_bufferobj_map_range(struct gl_context
* ctx
,
291 GLintptr offset
, GLsizeiptr length
,
292 GLbitfield access
, struct gl_buffer_object
*obj
)
294 struct intel_context
*intel
= intel_context(ctx
);
295 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
299 /* _mesa_MapBufferRange (GL entrypoint) sets these, but the vbo module also
300 * internally uses our functions directly.
302 obj
->Offset
= offset
;
303 obj
->Length
= length
;
304 obj
->AccessFlags
= access
;
306 if (intel_obj
->sys_buffer
) {
307 const bool read_only
=
308 (access
& (GL_MAP_READ_BIT
| GL_MAP_WRITE_BIT
)) == GL_MAP_READ_BIT
;
310 if (!read_only
&& intel_obj
->source
)
311 release_buffer(intel_obj
);
313 if (!intel_obj
->buffer
|| intel_obj
->source
) {
314 obj
->Pointer
= intel_obj
->sys_buffer
+ offset
;
318 free(intel_obj
->sys_buffer
);
319 intel_obj
->sys_buffer
= NULL
;
322 if (intel_obj
->buffer
== NULL
) {
327 /* If the access is synchronized (like a normal buffer mapping), then get
328 * things flushed out so the later mapping syncs appropriately through GEM.
329 * If the user doesn't care about existing buffer contents and mapping would
330 * cause us to block, then throw out the old buffer.
332 * If they set INVALIDATE_BUFFER, we can pitch the current contents to
333 * achieve the required synchronization.
335 if (!(access
& GL_MAP_UNSYNCHRONIZED_BIT
)) {
336 if (drm_intel_bo_references(intel
->batch
.bo
, intel_obj
->buffer
)) {
337 if (access
& GL_MAP_INVALIDATE_BUFFER_BIT
) {
338 drm_intel_bo_unreference(intel_obj
->buffer
);
339 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
341 perf_debug("Stalling on the GPU for mapping a busy buffer "
345 } else if (drm_intel_bo_busy(intel_obj
->buffer
) &&
346 (access
& GL_MAP_INVALIDATE_BUFFER_BIT
)) {
347 drm_intel_bo_unreference(intel_obj
->buffer
);
348 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
352 /* If the user is mapping a range of an active buffer object but
353 * doesn't require the current contents of that range, make a new
354 * BO, and we'll copy what they put in there out at unmap or
357 if ((access
& GL_MAP_INVALIDATE_RANGE_BIT
) &&
358 drm_intel_bo_busy(intel_obj
->buffer
)) {
359 if (access
& GL_MAP_FLUSH_EXPLICIT_BIT
) {
360 intel_obj
->range_map_buffer
= malloc(length
);
361 obj
->Pointer
= intel_obj
->range_map_buffer
;
363 intel_obj
->range_map_bo
= drm_intel_bo_alloc(intel
->bufmgr
,
366 if (!(access
& GL_MAP_READ_BIT
)) {
367 drm_intel_gem_bo_map_gtt(intel_obj
->range_map_bo
);
369 drm_intel_bo_map(intel_obj
->range_map_bo
,
370 (access
& GL_MAP_WRITE_BIT
) != 0);
372 obj
->Pointer
= intel_obj
->range_map_bo
->virtual;
377 if (access
& GL_MAP_UNSYNCHRONIZED_BIT
)
378 drm_intel_gem_bo_map_unsynchronized(intel_obj
->buffer
);
379 else if (!(access
& GL_MAP_READ_BIT
)) {
380 drm_intel_gem_bo_map_gtt(intel_obj
->buffer
);
382 drm_intel_bo_map(intel_obj
->buffer
, (access
& GL_MAP_WRITE_BIT
) != 0);
385 obj
->Pointer
= intel_obj
->buffer
->virtual + offset
;
389 /* Ideally we'd use a BO to avoid taking up cache space for the temporary
390 * data, but FlushMappedBufferRange may be followed by further writes to
391 * the pointer, so we would have to re-map after emitting our blit, which
392 * would defeat the point.
395 intel_bufferobj_flush_mapped_range(struct gl_context
*ctx
,
396 GLintptr offset
, GLsizeiptr length
,
397 struct gl_buffer_object
*obj
)
399 struct intel_context
*intel
= intel_context(ctx
);
400 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
401 drm_intel_bo
*temp_bo
;
403 /* Unless we're in the range map using a temporary system buffer,
404 * there's no work to do.
406 if (intel_obj
->range_map_buffer
== NULL
)
412 temp_bo
= drm_intel_bo_alloc(intel
->bufmgr
, "range map flush", length
, 64);
414 drm_intel_bo_subdata(temp_bo
, 0, length
, intel_obj
->range_map_buffer
);
416 intel_emit_linear_blit(intel
,
417 intel_obj
->buffer
, obj
->Offset
+ offset
,
421 drm_intel_bo_unreference(temp_bo
);
426 * Called via glUnmapBuffer().
429 intel_bufferobj_unmap(struct gl_context
* ctx
, struct gl_buffer_object
*obj
)
431 struct intel_context
*intel
= intel_context(ctx
);
432 struct intel_buffer_object
*intel_obj
= intel_buffer_object(obj
);
435 assert(obj
->Pointer
);
436 if (intel_obj
->sys_buffer
!= NULL
) {
437 /* always keep the mapping around. */
438 } else if (intel_obj
->range_map_buffer
!= NULL
) {
439 /* Since we've emitted some blits to buffers that will (likely) be used
440 * in rendering operations in other cache domains in this batch, emit a
441 * flush. Once again, we wish for a domain tracker in libdrm to cover
442 * usage inside of a batchbuffer.
444 intel_batchbuffer_emit_mi_flush(intel
);
445 free(intel_obj
->range_map_buffer
);
446 intel_obj
->range_map_buffer
= NULL
;
447 } else if (intel_obj
->range_map_bo
!= NULL
) {
448 drm_intel_bo_unmap(intel_obj
->range_map_bo
);
450 intel_emit_linear_blit(intel
,
451 intel_obj
->buffer
, obj
->Offset
,
452 intel_obj
->range_map_bo
, 0,
455 /* Since we've emitted some blits to buffers that will (likely) be used
456 * in rendering operations in other cache domains in this batch, emit a
457 * flush. Once again, we wish for a domain tracker in libdrm to cover
458 * usage inside of a batchbuffer.
460 intel_batchbuffer_emit_mi_flush(intel
);
462 drm_intel_bo_unreference(intel_obj
->range_map_bo
);
463 intel_obj
->range_map_bo
= NULL
;
464 } else if (intel_obj
->buffer
!= NULL
) {
465 drm_intel_bo_unmap(intel_obj
->buffer
);
475 intel_bufferobj_buffer(struct intel_context
*intel
,
476 struct intel_buffer_object
*intel_obj
,
479 if (intel_obj
->source
)
480 release_buffer(intel_obj
);
482 if (intel_obj
->buffer
== NULL
) {
483 intel_bufferobj_alloc_buffer(intel
, intel_obj
);
484 drm_intel_bo_subdata(intel_obj
->buffer
,
485 0, intel_obj
->Base
.Size
,
486 intel_obj
->sys_buffer
);
488 free(intel_obj
->sys_buffer
);
489 intel_obj
->sys_buffer
= NULL
;
490 intel_obj
->offset
= 0;
493 return intel_obj
->buffer
;
496 #define INTEL_UPLOAD_SIZE (64*1024)
499 intel_upload_finish(struct intel_context
*intel
)
501 if (!intel
->upload
.bo
)
504 if (intel
->upload
.buffer_len
) {
505 drm_intel_bo_subdata(intel
->upload
.bo
,
506 intel
->upload
.buffer_offset
,
507 intel
->upload
.buffer_len
,
508 intel
->upload
.buffer
);
509 intel
->upload
.buffer_len
= 0;
512 drm_intel_bo_unreference(intel
->upload
.bo
);
513 intel
->upload
.bo
= NULL
;
516 static void wrap_buffers(struct intel_context
*intel
, GLuint size
)
518 intel_upload_finish(intel
);
520 if (size
< INTEL_UPLOAD_SIZE
)
521 size
= INTEL_UPLOAD_SIZE
;
523 intel
->upload
.bo
= drm_intel_bo_alloc(intel
->bufmgr
, "upload", size
, 0);
524 intel
->upload
.offset
= 0;
527 void intel_upload_data(struct intel_context
*intel
,
528 const void *ptr
, GLuint size
, GLuint align
,
529 drm_intel_bo
**return_bo
,
530 GLuint
*return_offset
)
534 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
535 if (intel
->upload
.bo
== NULL
|| base
+ size
> intel
->upload
.bo
->size
) {
536 wrap_buffers(intel
, size
);
540 drm_intel_bo_reference(intel
->upload
.bo
);
541 *return_bo
= intel
->upload
.bo
;
542 *return_offset
= base
;
544 delta
= base
- intel
->upload
.offset
;
545 if (intel
->upload
.buffer_len
&&
546 intel
->upload
.buffer_len
+ delta
+ size
> sizeof(intel
->upload
.buffer
))
548 drm_intel_bo_subdata(intel
->upload
.bo
,
549 intel
->upload
.buffer_offset
,
550 intel
->upload
.buffer_len
,
551 intel
->upload
.buffer
);
552 intel
->upload
.buffer_len
= 0;
555 if (size
< sizeof(intel
->upload
.buffer
))
557 if (intel
->upload
.buffer_len
== 0)
558 intel
->upload
.buffer_offset
= base
;
560 intel
->upload
.buffer_len
+= delta
;
562 memcpy(intel
->upload
.buffer
+ intel
->upload
.buffer_len
, ptr
, size
);
563 intel
->upload
.buffer_len
+= size
;
567 drm_intel_bo_subdata(intel
->upload
.bo
, base
, size
, ptr
);
570 intel
->upload
.offset
= base
+ size
;
573 void *intel_upload_map(struct intel_context
*intel
, GLuint size
, GLuint align
)
578 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
579 if (intel
->upload
.bo
== NULL
|| base
+ size
> intel
->upload
.bo
->size
) {
580 wrap_buffers(intel
, size
);
584 delta
= base
- intel
->upload
.offset
;
585 if (intel
->upload
.buffer_len
&&
586 intel
->upload
.buffer_len
+ delta
+ size
> sizeof(intel
->upload
.buffer
))
588 drm_intel_bo_subdata(intel
->upload
.bo
,
589 intel
->upload
.buffer_offset
,
590 intel
->upload
.buffer_len
,
591 intel
->upload
.buffer
);
592 intel
->upload
.buffer_len
= 0;
595 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 ptr
= intel
->upload
.buffer
+ intel
->upload
.buffer_len
;
602 intel
->upload
.buffer_len
+= size
;
609 void intel_upload_unmap(struct intel_context
*intel
,
610 const void *ptr
, GLuint size
, GLuint align
,
611 drm_intel_bo
**return_bo
,
612 GLuint
*return_offset
)
616 base
= (intel
->upload
.offset
+ align
- 1) / align
* align
;
617 if (size
> sizeof(intel
->upload
.buffer
)) {
618 drm_intel_bo_subdata(intel
->upload
.bo
, base
, size
, ptr
);
622 drm_intel_bo_reference(intel
->upload
.bo
);
623 *return_bo
= intel
->upload
.bo
;
624 *return_offset
= base
;
626 intel
->upload
.offset
= base
+ size
;
630 intel_bufferobj_source(struct intel_context
*intel
,
631 struct intel_buffer_object
*intel_obj
,
632 GLuint align
, GLuint
*offset
)
634 if (intel_obj
->buffer
== NULL
) {
635 intel_upload_data(intel
,
636 intel_obj
->sys_buffer
, intel_obj
->Base
.Size
, align
,
637 &intel_obj
->buffer
, &intel_obj
->offset
);
638 intel_obj
->source
= 1;
641 *offset
= intel_obj
->offset
;
642 return intel_obj
->buffer
;
646 intel_bufferobj_copy_subdata(struct gl_context
*ctx
,
647 struct gl_buffer_object
*src
,
648 struct gl_buffer_object
*dst
,
649 GLintptr read_offset
, GLintptr write_offset
,
652 struct intel_context
*intel
= intel_context(ctx
);
653 struct intel_buffer_object
*intel_src
= intel_buffer_object(src
);
654 struct intel_buffer_object
*intel_dst
= intel_buffer_object(dst
);
655 drm_intel_bo
*src_bo
, *dst_bo
;
661 /* If we're in system memory, just map and memcpy. */
662 if (intel_src
->sys_buffer
|| intel_dst
->sys_buffer
) {
663 /* The same buffer may be used, but note that regions copied may
667 char *ptr
= intel_bufferobj_map_range(ctx
, 0, dst
->Size
,
671 memmove(ptr
+ write_offset
, ptr
+ read_offset
, size
);
672 intel_bufferobj_unmap(ctx
, dst
);
677 src_ptr
= intel_bufferobj_map_range(ctx
, 0, src
->Size
,
678 GL_MAP_READ_BIT
, src
);
679 dst_ptr
= intel_bufferobj_map_range(ctx
, 0, dst
->Size
,
680 GL_MAP_WRITE_BIT
, dst
);
682 memcpy(dst_ptr
+ write_offset
, src_ptr
+ read_offset
, size
);
684 intel_bufferobj_unmap(ctx
, src
);
685 intel_bufferobj_unmap(ctx
, dst
);
690 /* Otherwise, we have real BOs, so blit them. */
692 dst_bo
= intel_bufferobj_buffer(intel
, intel_dst
, INTEL_WRITE_PART
);
693 src_bo
= intel_bufferobj_source(intel
, intel_src
, 64, &src_offset
);
695 intel_emit_linear_blit(intel
,
696 dst_bo
, write_offset
,
697 src_bo
, read_offset
+ src_offset
, size
);
699 /* Since we've emitted some blits to buffers that will (likely) be used
700 * in rendering operations in other cache domains in this batch, emit a
701 * flush. Once again, we wish for a domain tracker in libdrm to cover
702 * usage inside of a batchbuffer.
704 intel_batchbuffer_emit_mi_flush(intel
);
708 intel_buffer_purgeable(drm_intel_bo
*buffer
)
713 retained
= drm_intel_bo_madvise (buffer
, I915_MADV_DONTNEED
);
715 return retained
? GL_VOLATILE_APPLE
: GL_RELEASED_APPLE
;
719 intel_buffer_object_purgeable(struct gl_context
* ctx
,
720 struct gl_buffer_object
*obj
,
723 struct intel_buffer_object
*intel_obj
= intel_buffer_object (obj
);
725 if (intel_obj
->buffer
!= NULL
)
726 return intel_buffer_purgeable(intel_obj
->buffer
);
728 if (option
== GL_RELEASED_APPLE
) {
729 free(intel_obj
->sys_buffer
);
730 intel_obj
->sys_buffer
= NULL
;
732 return GL_RELEASED_APPLE
;
734 /* XXX Create the buffer and madvise(MADV_DONTNEED)? */
735 struct intel_context
*intel
= intel_context(ctx
);
736 drm_intel_bo
*bo
= intel_bufferobj_buffer(intel
, intel_obj
, INTEL_READ
);
738 return intel_buffer_purgeable(bo
);
743 intel_texture_object_purgeable(struct gl_context
* ctx
,
744 struct gl_texture_object
*obj
,
747 struct intel_texture_object
*intel
;
752 intel
= intel_texture_object(obj
);
753 if (intel
->mt
== NULL
|| intel
->mt
->region
== NULL
)
754 return GL_RELEASED_APPLE
;
756 return intel_buffer_purgeable(intel
->mt
->region
->bo
);
760 intel_render_object_purgeable(struct gl_context
* ctx
,
761 struct gl_renderbuffer
*obj
,
764 struct intel_renderbuffer
*intel
;
769 intel
= intel_renderbuffer(obj
);
770 if (intel
->mt
== NULL
)
771 return GL_RELEASED_APPLE
;
773 return intel_buffer_purgeable(intel
->mt
->region
->bo
);
777 intel_buffer_unpurgeable(drm_intel_bo
*buffer
)
783 retained
= drm_intel_bo_madvise (buffer
, I915_MADV_WILLNEED
);
785 return retained
? GL_RETAINED_APPLE
: GL_UNDEFINED_APPLE
;
789 intel_buffer_object_unpurgeable(struct gl_context
* ctx
,
790 struct gl_buffer_object
*obj
,
796 return intel_buffer_unpurgeable(intel_buffer_object (obj
)->buffer
);
800 intel_texture_object_unpurgeable(struct gl_context
* ctx
,
801 struct gl_texture_object
*obj
,
804 struct intel_texture_object
*intel
;
809 intel
= intel_texture_object(obj
);
810 if (intel
->mt
== NULL
|| intel
->mt
->region
== NULL
)
811 return GL_UNDEFINED_APPLE
;
813 return intel_buffer_unpurgeable(intel
->mt
->region
->bo
);
817 intel_render_object_unpurgeable(struct gl_context
* ctx
,
818 struct gl_renderbuffer
*obj
,
821 struct intel_renderbuffer
*intel
;
826 intel
= intel_renderbuffer(obj
);
827 if (intel
->mt
== NULL
)
828 return GL_UNDEFINED_APPLE
;
830 return intel_buffer_unpurgeable(intel
->mt
->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 functions
->BufferObjectPurgeable
= intel_buffer_object_purgeable
;
847 functions
->TextureObjectPurgeable
= intel_texture_object_purgeable
;
848 functions
->RenderObjectPurgeable
= intel_render_object_purgeable
;
850 functions
->BufferObjectUnpurgeable
= intel_buffer_object_unpurgeable
;
851 functions
->TextureObjectUnpurgeable
= intel_texture_object_unpurgeable
;
852 functions
->RenderObjectUnpurgeable
= intel_render_object_unpurgeable
;