1 /**************************************************************************
3 * Copyright 2006 VMware, Inc.
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 VMWARE 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 * Keith Whitwell <keithw@vmware.com>
30 * Michel Dänzer <daenzer@vmware.com>
35 #include "pipe/p_context.h"
36 #include "pipe/p_defines.h"
38 #include "util/u_inlines.h"
39 #include "util/u_cpu_detect.h"
40 #include "util/u_format.h"
41 #include "util/u_math.h"
42 #include "util/u_memory.h"
43 #include "util/simple_list.h"
44 #include "util/u_transfer.h"
46 #include "lp_context.h"
48 #include "lp_screen.h"
49 #include "lp_texture.h"
54 #include "state_tracker/sw_winsys.h"
58 static struct llvmpipe_resource resource_list
;
60 static unsigned id_counter
= 0;
64 * Conventional allocation path for non-display textures:
65 * Compute strides and allocate data (unless asked not to).
68 llvmpipe_texture_layout(struct llvmpipe_screen
*screen
,
69 struct llvmpipe_resource
*lpr
,
72 struct pipe_resource
*pt
= &lpr
->base
;
74 unsigned width
= pt
->width0
;
75 unsigned height
= pt
->height0
;
76 unsigned depth
= pt
->depth0
;
77 uint64_t total_size
= 0;
78 unsigned layers
= pt
->array_size
;
80 * This alignment here (same for displaytarget) was added for the purpose of
81 * ARB_map_buffer_alignment. I am not convinced it's needed for non-buffer
82 * resources. Otherwise we'd want the max of cacheline size and 16 (max size
83 * of a block for all formats) though this should not be strictly necessary
84 * neither. In any case it can only affect compressed or 1d textures.
86 unsigned mip_align
= MAX2(64, util_cpu_caps
.cacheline
);
88 assert(LP_MAX_TEXTURE_2D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
89 assert(LP_MAX_TEXTURE_3D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
91 for (level
= 0; level
<= pt
->last_level
; level
++) {
93 unsigned align_x
, align_y
, nblocksx
, nblocksy
, block_size
, num_slices
;
95 /* Row stride and image stride */
97 /* For non-compressed formats we need 4x4 pixel alignment
98 * so we can read/write LP_RASTER_BLOCK_SIZE when rendering to them.
99 * We also want cache line size in x direction,
100 * otherwise same cache line could end up in multiple threads.
101 * For explicit 1d resources however we reduce this to 4x1 and
102 * handle specially in render output code (as we need to do special
103 * handling there for buffers in any case).
105 if (util_format_is_compressed(pt
->format
))
106 align_x
= align_y
= 1;
108 align_x
= LP_RASTER_BLOCK_SIZE
;
109 if (llvmpipe_resource_is_1d(&lpr
->base
))
112 align_y
= LP_RASTER_BLOCK_SIZE
;
115 nblocksx
= util_format_get_nblocksx(pt
->format
,
116 align(width
, align_x
));
117 nblocksy
= util_format_get_nblocksy(pt
->format
,
118 align(height
, align_y
));
119 block_size
= util_format_get_blocksize(pt
->format
);
121 if (util_format_is_compressed(pt
->format
))
122 lpr
->row_stride
[level
] = nblocksx
* block_size
;
124 lpr
->row_stride
[level
] = align(nblocksx
* block_size
, util_cpu_caps
.cacheline
);
126 /* if row_stride * height > LP_MAX_TEXTURE_SIZE */
127 if ((uint64_t)lpr
->row_stride
[level
] * nblocksy
> LP_MAX_TEXTURE_SIZE
) {
128 /* image too large */
132 lpr
->img_stride
[level
] = lpr
->row_stride
[level
] * nblocksy
;
134 /* Number of 3D image slices, cube faces or texture array layers */
135 if (lpr
->base
.target
== PIPE_TEXTURE_CUBE
) {
139 if (lpr
->base
.target
== PIPE_TEXTURE_3D
)
141 else if (lpr
->base
.target
== PIPE_TEXTURE_1D_ARRAY
||
142 lpr
->base
.target
== PIPE_TEXTURE_2D_ARRAY
||
143 lpr
->base
.target
== PIPE_TEXTURE_CUBE
||
144 lpr
->base
.target
== PIPE_TEXTURE_CUBE_ARRAY
)
149 /* if img_stride * num_slices_faces > LP_MAX_TEXTURE_SIZE */
150 mipsize
= (uint64_t)lpr
->img_stride
[level
] * num_slices
;
151 if (mipsize
> LP_MAX_TEXTURE_SIZE
) {
152 /* volume too large */
156 lpr
->mip_offsets
[level
] = total_size
;
158 total_size
+= align((unsigned)mipsize
, mip_align
);
159 if (total_size
> LP_MAX_TEXTURE_SIZE
) {
163 /* Compute size of next mipmap level */
164 width
= u_minify(width
, 1);
165 height
= u_minify(height
, 1);
166 depth
= u_minify(depth
, 1);
170 lpr
->tex_data
= align_malloc(total_size
, mip_align
);
171 if (!lpr
->tex_data
) {
175 memset(lpr
->tex_data
, 0, total_size
);
187 * Check the size of the texture specified by 'res'.
188 * \return TRUE if OK, FALSE if too large.
191 llvmpipe_can_create_resource(struct pipe_screen
*screen
,
192 const struct pipe_resource
*res
)
194 struct llvmpipe_resource lpr
;
195 memset(&lpr
, 0, sizeof(lpr
));
197 return llvmpipe_texture_layout(llvmpipe_screen(screen
), &lpr
, false);
202 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
203 struct llvmpipe_resource
*lpr
,
204 const void *map_front_private
)
206 struct sw_winsys
*winsys
= screen
->winsys
;
208 /* Round up the surface size to a multiple of the tile size to
209 * avoid tile clipping.
211 const unsigned width
= MAX2(1, align(lpr
->base
.width0
, TILE_SIZE
));
212 const unsigned height
= MAX2(1, align(lpr
->base
.height0
, TILE_SIZE
));
214 lpr
->dt
= winsys
->displaytarget_create(winsys
,
220 &lpr
->row_stride
[0] );
225 if (!map_front_private
) {
226 void *map
= winsys
->displaytarget_map(winsys
, lpr
->dt
,
227 PIPE_TRANSFER_WRITE
);
230 memset(map
, 0, height
* lpr
->row_stride
[0]);
232 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
239 static struct pipe_resource
*
240 llvmpipe_resource_create_front(struct pipe_screen
*_screen
,
241 const struct pipe_resource
*templat
,
242 const void *map_front_private
)
244 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
245 struct llvmpipe_resource
*lpr
= CALLOC_STRUCT(llvmpipe_resource
);
249 lpr
->base
= *templat
;
250 pipe_reference_init(&lpr
->base
.reference
, 1);
251 lpr
->base
.screen
= &screen
->base
;
253 /* assert(lpr->base.bind); */
255 if (llvmpipe_resource_is_texture(&lpr
->base
)) {
256 if (lpr
->base
.bind
& (PIPE_BIND_DISPLAY_TARGET
|
259 /* displayable surface */
260 if (!llvmpipe_displaytarget_layout(screen
, lpr
, map_front_private
))
265 if (!llvmpipe_texture_layout(screen
, lpr
, true))
270 /* other data (vertex buffer, const buffer, etc) */
271 const uint bytes
= templat
->width0
;
272 assert(util_format_get_blocksize(templat
->format
) == 1);
273 assert(templat
->height0
== 1);
274 assert(templat
->depth0
== 1);
275 assert(templat
->last_level
== 0);
277 * Reserve some extra storage since if we'd render to a buffer we
278 * read/write always LP_RASTER_BLOCK_SIZE pixels, but the element
279 * offset doesn't need to be aligned to LP_RASTER_BLOCK_SIZE.
281 lpr
->data
= align_malloc(bytes
+ (LP_RASTER_BLOCK_SIZE
- 1) * 4 * sizeof(float), 64);
284 * buffers don't really have stride but it's probably safer
285 * (for code doing same calculations for buffers and textures)
286 * to put something sane in there.
288 lpr
->row_stride
[0] = bytes
;
291 memset(lpr
->data
, 0, bytes
);
294 lpr
->id
= id_counter
++;
297 insert_at_tail(&resource_list
, lpr
);
308 static struct pipe_resource
*
309 llvmpipe_resource_create(struct pipe_screen
*_screen
,
310 const struct pipe_resource
*templat
)
312 return llvmpipe_resource_create_front(_screen
, templat
, NULL
);
317 llvmpipe_resource_destroy(struct pipe_screen
*pscreen
,
318 struct pipe_resource
*pt
)
320 struct llvmpipe_screen
*screen
= llvmpipe_screen(pscreen
);
321 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
325 struct sw_winsys
*winsys
= screen
->winsys
;
326 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
328 else if (llvmpipe_resource_is_texture(pt
)) {
329 /* free linear image data */
331 align_free(lpr
->tex_data
);
332 lpr
->tex_data
= NULL
;
335 else if (!lpr
->userBuffer
) {
337 align_free(lpr
->data
);
342 remove_from_list(lpr
);
350 * Map a resource for read/write.
353 llvmpipe_resource_map(struct pipe_resource
*resource
,
356 enum lp_texture_usage tex_usage
)
358 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
361 assert(level
< LP_MAX_TEXTURE_LEVELS
);
362 assert(layer
< (u_minify(resource
->depth0
, level
) + resource
->array_size
- 1));
364 assert(tex_usage
== LP_TEX_USAGE_READ
||
365 tex_usage
== LP_TEX_USAGE_READ_WRITE
||
366 tex_usage
== LP_TEX_USAGE_WRITE_ALL
);
370 struct llvmpipe_screen
*screen
= llvmpipe_screen(resource
->screen
);
371 struct sw_winsys
*winsys
= screen
->winsys
;
374 if (tex_usage
== LP_TEX_USAGE_READ
) {
375 dt_usage
= PIPE_TRANSFER_READ
;
378 dt_usage
= PIPE_TRANSFER_READ_WRITE
;
384 /* FIXME: keep map count? */
385 map
= winsys
->displaytarget_map(winsys
, lpr
->dt
, dt_usage
);
387 /* install this linear image in texture data structure */
392 else if (llvmpipe_resource_is_texture(resource
)) {
394 map
= llvmpipe_get_texture_image_address(lpr
, layer
, level
);
407 llvmpipe_resource_unmap(struct pipe_resource
*resource
,
411 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
415 struct llvmpipe_screen
*lp_screen
= llvmpipe_screen(resource
->screen
);
416 struct sw_winsys
*winsys
= lp_screen
->winsys
;
421 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
427 llvmpipe_resource_data(struct pipe_resource
*resource
)
429 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
431 assert(!llvmpipe_resource_is_texture(resource
));
437 static struct pipe_resource
*
438 llvmpipe_resource_from_handle(struct pipe_screen
*screen
,
439 const struct pipe_resource
*template,
440 struct winsys_handle
*whandle
,
443 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
444 struct llvmpipe_resource
*lpr
;
446 /* XXX Seems like from_handled depth textures doesn't work that well */
448 lpr
= CALLOC_STRUCT(llvmpipe_resource
);
453 lpr
->base
= *template;
454 pipe_reference_init(&lpr
->base
.reference
, 1);
455 lpr
->base
.screen
= screen
;
458 * Looks like unaligned displaytargets work just fine,
459 * at least sampler/render ones.
462 assert(lpr
->base
.width0
== width
);
463 assert(lpr
->base
.height0
== height
);
466 lpr
->dt
= winsys
->displaytarget_from_handle(winsys
,
469 &lpr
->row_stride
[0]);
474 lpr
->id
= id_counter
++;
477 insert_at_tail(&resource_list
, lpr
);
490 llvmpipe_resource_get_handle(struct pipe_screen
*screen
,
491 struct pipe_context
*ctx
,
492 struct pipe_resource
*pt
,
493 struct winsys_handle
*whandle
,
496 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
497 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
503 return winsys
->displaytarget_get_handle(winsys
, lpr
->dt
, whandle
);
508 llvmpipe_transfer_map( struct pipe_context
*pipe
,
509 struct pipe_resource
*resource
,
512 const struct pipe_box
*box
,
513 struct pipe_transfer
**transfer
)
515 struct llvmpipe_context
*llvmpipe
= llvmpipe_context(pipe
);
516 struct llvmpipe_screen
*screen
= llvmpipe_screen(pipe
->screen
);
517 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
518 struct llvmpipe_transfer
*lpt
;
519 struct pipe_transfer
*pt
;
521 enum pipe_format format
;
522 enum lp_texture_usage tex_usage
;
526 assert(level
<= resource
->last_level
);
529 * Transfers, like other pipe operations, must happen in order, so flush the
530 * context if necessary.
532 if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
533 boolean read_only
= !(usage
& PIPE_TRANSFER_WRITE
);
534 boolean do_not_block
= !!(usage
& PIPE_TRANSFER_DONTBLOCK
);
535 if (!llvmpipe_flush_resource(pipe
, resource
,
538 TRUE
, /* cpu_access */
542 * It would have blocked, but state tracker requested no to.
544 assert(do_not_block
);
549 /* Check if we're mapping a current constant buffer */
550 if ((usage
& PIPE_TRANSFER_WRITE
) &&
551 (resource
->bind
& PIPE_BIND_CONSTANT_BUFFER
)) {
553 for (i
= 0; i
< ARRAY_SIZE(llvmpipe
->constants
[PIPE_SHADER_FRAGMENT
]); ++i
) {
554 if (resource
== llvmpipe
->constants
[PIPE_SHADER_FRAGMENT
][i
].buffer
) {
555 /* constants may have changed */
556 llvmpipe
->dirty
|= LP_NEW_FS_CONSTANTS
;
562 lpt
= CALLOC_STRUCT(llvmpipe_transfer
);
566 pipe_resource_reference(&pt
->resource
, resource
);
569 pt
->stride
= lpr
->row_stride
[level
];
570 pt
->layer_stride
= lpr
->img_stride
[level
];
574 assert(level
< LP_MAX_TEXTURE_LEVELS
);
577 printf("tex_transfer_map(%d, %d %d x %d of %d x %d, usage %d )\n",
578 transfer->x, transfer->y, transfer->width, transfer->height,
579 transfer->texture->width0,
580 transfer->texture->height0,
584 if (usage
== PIPE_TRANSFER_READ
) {
585 tex_usage
= LP_TEX_USAGE_READ
;
589 tex_usage
= LP_TEX_USAGE_READ_WRITE
;
594 printf("transfer map tex %u mode %s\n", lpr
->id
, mode
);
597 format
= lpr
->base
.format
;
599 map
= llvmpipe_resource_map(resource
,
605 /* May want to do different things here depending on read/write nature
608 if (usage
& PIPE_TRANSFER_WRITE
) {
609 /* Do something to notify sharing contexts of a texture change.
615 box
->y
/ util_format_get_blockheight(format
) * pt
->stride
+
616 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
623 llvmpipe_transfer_unmap(struct pipe_context
*pipe
,
624 struct pipe_transfer
*transfer
)
626 assert(transfer
->resource
);
628 llvmpipe_resource_unmap(transfer
->resource
,
632 /* Effectively do the texture_update work here - if texture images
633 * needed post-processing to put them into hardware layout, this is
634 * where it would happen. For llvmpipe, nothing to do.
636 assert (transfer
->resource
);
637 pipe_resource_reference(&transfer
->resource
, NULL
);
642 llvmpipe_is_resource_referenced( struct pipe_context
*pipe
,
643 struct pipe_resource
*presource
,
646 struct llvmpipe_context
*llvmpipe
= llvmpipe_context( pipe
);
647 if (!(presource
->bind
& (PIPE_BIND_DEPTH_STENCIL
|
648 PIPE_BIND_RENDER_TARGET
|
649 PIPE_BIND_SAMPLER_VIEW
)))
650 return LP_UNREFERENCED
;
652 return lp_setup_is_resource_referenced(llvmpipe
->setup
, presource
);
657 * Returns the largest possible alignment for a format in llvmpipe
660 llvmpipe_get_format_alignment( enum pipe_format format
)
662 const struct util_format_description
*desc
= util_format_description(format
);
667 for (i
= 0; i
< desc
->nr_channels
; ++i
) {
668 size
+= desc
->channel
[i
].size
;
673 if (!util_is_power_of_two_or_zero(bytes
)) {
674 bytes
/= desc
->nr_channels
;
677 if (bytes
% 2 || bytes
< 1) {
686 * Create buffer which wraps user-space data.
689 struct pipe_resource
*
690 llvmpipe_user_buffer_create(struct pipe_screen
*screen
,
695 struct llvmpipe_resource
*buffer
;
697 buffer
= CALLOC_STRUCT(llvmpipe_resource
);
701 pipe_reference_init(&buffer
->base
.reference
, 1);
702 buffer
->base
.screen
= screen
;
703 buffer
->base
.format
= PIPE_FORMAT_R8_UNORM
; /* ?? */
704 buffer
->base
.bind
= bind_flags
;
705 buffer
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
706 buffer
->base
.flags
= 0;
707 buffer
->base
.width0
= bytes
;
708 buffer
->base
.height0
= 1;
709 buffer
->base
.depth0
= 1;
710 buffer
->base
.array_size
= 1;
711 buffer
->userBuffer
= TRUE
;
714 return &buffer
->base
;
719 * Compute size (in bytes) need to store a texture image / mipmap level,
720 * for just one cube face, one array layer or one 3D texture slice
723 tex_image_face_size(const struct llvmpipe_resource
*lpr
, unsigned level
)
725 return lpr
->img_stride
[level
];
730 * Return pointer to a 2D texture image/face/slice.
731 * No tiled/linear conversion is done.
734 llvmpipe_get_texture_image_address(struct llvmpipe_resource
*lpr
,
735 unsigned face_slice
, unsigned level
)
739 assert(llvmpipe_resource_is_texture(&lpr
->base
));
741 offset
= lpr
->mip_offsets
[level
];
744 offset
+= face_slice
* tex_image_face_size(lpr
, level
);
746 return (ubyte
*) lpr
->tex_data
+ offset
;
751 * Return size of resource in bytes
754 llvmpipe_resource_size(const struct pipe_resource
*resource
)
756 const struct llvmpipe_resource
*lpr
= llvmpipe_resource_const(resource
);
759 if (llvmpipe_resource_is_texture(resource
)) {
760 /* Note this will always return 0 for displaytarget resources */
761 size
= lpr
->total_alloc_size
;
764 size
= resource
->width0
;
772 llvmpipe_print_resources(void)
774 struct llvmpipe_resource
*lpr
;
775 unsigned n
= 0, total
= 0;
777 debug_printf("LLVMPIPE: current resources:\n");
778 foreach(lpr
, &resource_list
) {
779 unsigned size
= llvmpipe_resource_size(&lpr
->base
);
780 debug_printf("resource %u at %p, size %ux%ux%u: %u bytes, refcount %u\n",
781 lpr
->id
, (void *) lpr
,
782 lpr
->base
.width0
, lpr
->base
.height0
, lpr
->base
.depth0
,
783 size
, lpr
->base
.reference
.count
);
787 debug_printf("LLVMPIPE: total size of %u resources: %u\n", n
, total
);
793 llvmpipe_init_screen_resource_funcs(struct pipe_screen
*screen
)
796 /* init linked list for tracking resources */
798 static boolean first_call
= TRUE
;
800 memset(&resource_list
, 0, sizeof(resource_list
));
801 make_empty_list(&resource_list
);
807 screen
->resource_create
= llvmpipe_resource_create
;
808 /* screen->resource_create_front = llvmpipe_resource_create_front; */
809 screen
->resource_destroy
= llvmpipe_resource_destroy
;
810 screen
->resource_from_handle
= llvmpipe_resource_from_handle
;
811 screen
->resource_get_handle
= llvmpipe_resource_get_handle
;
812 screen
->can_create_resource
= llvmpipe_can_create_resource
;
817 llvmpipe_init_context_resource_funcs(struct pipe_context
*pipe
)
819 pipe
->transfer_map
= llvmpipe_transfer_map
;
820 pipe
->transfer_unmap
= llvmpipe_transfer_unmap
;
822 pipe
->transfer_flush_region
= u_default_transfer_flush_region
;
823 pipe
->buffer_subdata
= u_default_buffer_subdata
;
824 pipe
->texture_subdata
= u_default_texture_subdata
;