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
)
205 struct sw_winsys
*winsys
= screen
->winsys
;
207 /* Round up the surface size to a multiple of the tile size to
208 * avoid tile clipping.
210 const unsigned width
= MAX2(1, align(lpr
->base
.width0
, TILE_SIZE
));
211 const unsigned height
= MAX2(1, align(lpr
->base
.height0
, TILE_SIZE
));
213 lpr
->dt
= winsys
->displaytarget_create(winsys
,
218 &lpr
->row_stride
[0] );
224 void *map
= winsys
->displaytarget_map(winsys
, lpr
->dt
,
225 PIPE_TRANSFER_WRITE
);
228 memset(map
, 0, height
* lpr
->row_stride
[0]);
230 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
237 static struct pipe_resource
*
238 llvmpipe_resource_create(struct pipe_screen
*_screen
,
239 const struct pipe_resource
*templat
)
241 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
242 struct llvmpipe_resource
*lpr
= CALLOC_STRUCT(llvmpipe_resource
);
246 lpr
->base
= *templat
;
247 pipe_reference_init(&lpr
->base
.reference
, 1);
248 lpr
->base
.screen
= &screen
->base
;
250 /* assert(lpr->base.bind); */
252 if (llvmpipe_resource_is_texture(&lpr
->base
)) {
253 if (lpr
->base
.bind
& (PIPE_BIND_DISPLAY_TARGET
|
256 /* displayable surface */
257 if (!llvmpipe_displaytarget_layout(screen
, lpr
))
262 if (!llvmpipe_texture_layout(screen
, lpr
, true))
267 /* other data (vertex buffer, const buffer, etc) */
268 const uint bytes
= templat
->width0
;
269 assert(util_format_get_blocksize(templat
->format
) == 1);
270 assert(templat
->height0
== 1);
271 assert(templat
->depth0
== 1);
272 assert(templat
->last_level
== 0);
274 * Reserve some extra storage since if we'd render to a buffer we
275 * read/write always LP_RASTER_BLOCK_SIZE pixels, but the element
276 * offset doesn't need to be aligned to LP_RASTER_BLOCK_SIZE.
278 lpr
->data
= align_malloc(bytes
+ (LP_RASTER_BLOCK_SIZE
- 1) * 4 * sizeof(float), 64);
281 * buffers don't really have stride but it's probably safer
282 * (for code doing same calculations for buffers and textures)
283 * to put something sane in there.
285 lpr
->row_stride
[0] = bytes
;
288 memset(lpr
->data
, 0, bytes
);
291 lpr
->id
= id_counter
++;
294 insert_at_tail(&resource_list
, lpr
);
306 llvmpipe_resource_destroy(struct pipe_screen
*pscreen
,
307 struct pipe_resource
*pt
)
309 struct llvmpipe_screen
*screen
= llvmpipe_screen(pscreen
);
310 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
314 struct sw_winsys
*winsys
= screen
->winsys
;
315 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
317 else if (llvmpipe_resource_is_texture(pt
)) {
318 /* free linear image data */
320 align_free(lpr
->tex_data
);
321 lpr
->tex_data
= NULL
;
324 else if (!lpr
->userBuffer
) {
326 align_free(lpr
->data
);
331 remove_from_list(lpr
);
339 * Map a resource for read/write.
342 llvmpipe_resource_map(struct pipe_resource
*resource
,
345 enum lp_texture_usage tex_usage
)
347 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
350 assert(level
< LP_MAX_TEXTURE_LEVELS
);
351 assert(layer
< (u_minify(resource
->depth0
, level
) + resource
->array_size
- 1));
353 assert(tex_usage
== LP_TEX_USAGE_READ
||
354 tex_usage
== LP_TEX_USAGE_READ_WRITE
||
355 tex_usage
== LP_TEX_USAGE_WRITE_ALL
);
359 struct llvmpipe_screen
*screen
= llvmpipe_screen(resource
->screen
);
360 struct sw_winsys
*winsys
= screen
->winsys
;
363 if (tex_usage
== LP_TEX_USAGE_READ
) {
364 dt_usage
= PIPE_TRANSFER_READ
;
367 dt_usage
= PIPE_TRANSFER_READ_WRITE
;
373 /* FIXME: keep map count? */
374 map
= winsys
->displaytarget_map(winsys
, lpr
->dt
, dt_usage
);
376 /* install this linear image in texture data structure */
381 else if (llvmpipe_resource_is_texture(resource
)) {
383 map
= llvmpipe_get_texture_image_address(lpr
, layer
, level
);
396 llvmpipe_resource_unmap(struct pipe_resource
*resource
,
400 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
404 struct llvmpipe_screen
*lp_screen
= llvmpipe_screen(resource
->screen
);
405 struct sw_winsys
*winsys
= lp_screen
->winsys
;
410 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
416 llvmpipe_resource_data(struct pipe_resource
*resource
)
418 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
420 assert(!llvmpipe_resource_is_texture(resource
));
426 static struct pipe_resource
*
427 llvmpipe_resource_from_handle(struct pipe_screen
*screen
,
428 const struct pipe_resource
*template,
429 struct winsys_handle
*whandle
)
431 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
432 struct llvmpipe_resource
*lpr
;
434 /* XXX Seems like from_handled depth textures doesn't work that well */
436 lpr
= CALLOC_STRUCT(llvmpipe_resource
);
441 lpr
->base
= *template;
442 pipe_reference_init(&lpr
->base
.reference
, 1);
443 lpr
->base
.screen
= screen
;
446 * Looks like unaligned displaytargets work just fine,
447 * at least sampler/render ones.
450 assert(lpr
->base
.width0
== width
);
451 assert(lpr
->base
.height0
== height
);
454 lpr
->dt
= winsys
->displaytarget_from_handle(winsys
,
457 &lpr
->row_stride
[0]);
462 lpr
->id
= id_counter
++;
465 insert_at_tail(&resource_list
, lpr
);
478 llvmpipe_resource_get_handle(struct pipe_screen
*screen
,
479 struct pipe_resource
*pt
,
480 struct winsys_handle
*whandle
)
482 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
483 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
489 return winsys
->displaytarget_get_handle(winsys
, lpr
->dt
, whandle
);
494 llvmpipe_transfer_map( struct pipe_context
*pipe
,
495 struct pipe_resource
*resource
,
498 const struct pipe_box
*box
,
499 struct pipe_transfer
**transfer
)
501 struct llvmpipe_context
*llvmpipe
= llvmpipe_context(pipe
);
502 struct llvmpipe_screen
*screen
= llvmpipe_screen(pipe
->screen
);
503 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
504 struct llvmpipe_transfer
*lpt
;
505 struct pipe_transfer
*pt
;
507 enum pipe_format format
;
508 enum lp_texture_usage tex_usage
;
512 assert(level
<= resource
->last_level
);
515 * Transfers, like other pipe operations, must happen in order, so flush the
516 * context if necessary.
518 if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
519 boolean read_only
= !(usage
& PIPE_TRANSFER_WRITE
);
520 boolean do_not_block
= !!(usage
& PIPE_TRANSFER_DONTBLOCK
);
521 if (!llvmpipe_flush_resource(pipe
, resource
,
524 TRUE
, /* cpu_access */
528 * It would have blocked, but state tracker requested no to.
530 assert(do_not_block
);
535 /* Check if we're mapping the current constant buffer */
536 if ((usage
& PIPE_TRANSFER_WRITE
) &&
537 (resource
->bind
& PIPE_BIND_CONSTANT_BUFFER
)) {
539 for (i
= 0; i
< Elements(llvmpipe
->constants
[PIPE_SHADER_FRAGMENT
]); ++i
) {
540 if (resource
== llvmpipe
->constants
[PIPE_SHADER_FRAGMENT
][i
].buffer
) {
541 /* constants may have changed */
542 llvmpipe
->dirty
|= LP_NEW_CONSTANTS
;
548 lpt
= CALLOC_STRUCT(llvmpipe_transfer
);
552 pipe_resource_reference(&pt
->resource
, resource
);
555 pt
->stride
= lpr
->row_stride
[level
];
556 pt
->layer_stride
= lpr
->img_stride
[level
];
560 assert(level
< LP_MAX_TEXTURE_LEVELS
);
563 printf("tex_transfer_map(%d, %d %d x %d of %d x %d, usage %d )\n",
564 transfer->x, transfer->y, transfer->width, transfer->height,
565 transfer->texture->width0,
566 transfer->texture->height0,
570 if (usage
== PIPE_TRANSFER_READ
) {
571 tex_usage
= LP_TEX_USAGE_READ
;
575 tex_usage
= LP_TEX_USAGE_READ_WRITE
;
580 printf("transfer map tex %u mode %s\n", lpr
->id
, mode
);
583 format
= lpr
->base
.format
;
585 map
= llvmpipe_resource_map(resource
,
591 /* May want to do different things here depending on read/write nature
594 if (usage
& PIPE_TRANSFER_WRITE
) {
595 /* Do something to notify sharing contexts of a texture change.
601 box
->y
/ util_format_get_blockheight(format
) * pt
->stride
+
602 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
609 llvmpipe_transfer_unmap(struct pipe_context
*pipe
,
610 struct pipe_transfer
*transfer
)
612 assert(transfer
->resource
);
614 llvmpipe_resource_unmap(transfer
->resource
,
618 /* Effectively do the texture_update work here - if texture images
619 * needed post-processing to put them into hardware layout, this is
620 * where it would happen. For llvmpipe, nothing to do.
622 assert (transfer
->resource
);
623 pipe_resource_reference(&transfer
->resource
, NULL
);
628 llvmpipe_is_resource_referenced( struct pipe_context
*pipe
,
629 struct pipe_resource
*presource
,
632 struct llvmpipe_context
*llvmpipe
= llvmpipe_context( pipe
);
635 * XXX checking only resources with the right bind flags
636 * is unsafe since with opengl state tracker we can end up
637 * with resources bound to places they weren't supposed to be
638 * (buffers bound as sampler views is one possibility here).
640 if (!(presource
->bind
& (PIPE_BIND_DEPTH_STENCIL
|
641 PIPE_BIND_RENDER_TARGET
|
642 PIPE_BIND_SAMPLER_VIEW
)))
643 return LP_UNREFERENCED
;
645 return lp_setup_is_resource_referenced(llvmpipe
->setup
, presource
);
650 * Returns the largest possible alignment for a format in llvmpipe
653 llvmpipe_get_format_alignment( enum pipe_format format
)
655 const struct util_format_description
*desc
= util_format_description(format
);
660 for (i
= 0; i
< desc
->nr_channels
; ++i
) {
661 size
+= desc
->channel
[i
].size
;
666 if (!util_is_power_of_two(bytes
)) {
667 bytes
/= desc
->nr_channels
;
670 if (bytes
% 2 || bytes
< 1) {
679 * Create buffer which wraps user-space data.
681 struct pipe_resource
*
682 llvmpipe_user_buffer_create(struct pipe_screen
*screen
,
687 struct llvmpipe_resource
*buffer
;
689 buffer
= CALLOC_STRUCT(llvmpipe_resource
);
693 pipe_reference_init(&buffer
->base
.reference
, 1);
694 buffer
->base
.screen
= screen
;
695 buffer
->base
.format
= PIPE_FORMAT_R8_UNORM
; /* ?? */
696 buffer
->base
.bind
= bind_flags
;
697 buffer
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
698 buffer
->base
.flags
= 0;
699 buffer
->base
.width0
= bytes
;
700 buffer
->base
.height0
= 1;
701 buffer
->base
.depth0
= 1;
702 buffer
->base
.array_size
= 1;
703 buffer
->userBuffer
= TRUE
;
706 return &buffer
->base
;
711 * Compute size (in bytes) need to store a texture image / mipmap level,
712 * for just one cube face, one array layer or one 3D texture slice
715 tex_image_face_size(const struct llvmpipe_resource
*lpr
, unsigned level
)
717 return lpr
->img_stride
[level
];
722 * Return pointer to a 2D texture image/face/slice.
723 * No tiled/linear conversion is done.
726 llvmpipe_get_texture_image_address(struct llvmpipe_resource
*lpr
,
727 unsigned face_slice
, unsigned level
)
731 assert(llvmpipe_resource_is_texture(&lpr
->base
));
733 offset
= lpr
->mip_offsets
[level
];
736 offset
+= face_slice
* tex_image_face_size(lpr
, level
);
738 return (ubyte
*) lpr
->tex_data
+ offset
;
743 * Return size of resource in bytes
746 llvmpipe_resource_size(const struct pipe_resource
*resource
)
748 const struct llvmpipe_resource
*lpr
= llvmpipe_resource_const(resource
);
751 if (llvmpipe_resource_is_texture(resource
)) {
752 /* Note this will always return 0 for displaytarget resources */
753 size
= lpr
->total_alloc_size
;
756 size
= resource
->width0
;
764 llvmpipe_print_resources(void)
766 struct llvmpipe_resource
*lpr
;
767 unsigned n
= 0, total
= 0;
769 debug_printf("LLVMPIPE: current resources:\n");
770 foreach(lpr
, &resource_list
) {
771 unsigned size
= llvmpipe_resource_size(&lpr
->base
);
772 debug_printf("resource %u at %p, size %ux%ux%u: %u bytes, refcount %u\n",
773 lpr
->id
, (void *) lpr
,
774 lpr
->base
.width0
, lpr
->base
.height0
, lpr
->base
.depth0
,
775 size
, lpr
->base
.reference
.count
);
779 debug_printf("LLVMPIPE: total size of %u resources: %u\n", n
, total
);
785 llvmpipe_init_screen_resource_funcs(struct pipe_screen
*screen
)
788 /* init linked list for tracking resources */
790 static boolean first_call
= TRUE
;
792 memset(&resource_list
, 0, sizeof(resource_list
));
793 make_empty_list(&resource_list
);
799 screen
->resource_create
= llvmpipe_resource_create
;
800 screen
->resource_destroy
= llvmpipe_resource_destroy
;
801 screen
->resource_from_handle
= llvmpipe_resource_from_handle
;
802 screen
->resource_get_handle
= llvmpipe_resource_get_handle
;
803 screen
->can_create_resource
= llvmpipe_can_create_resource
;
808 llvmpipe_init_context_resource_funcs(struct pipe_context
*pipe
)
810 pipe
->transfer_map
= llvmpipe_transfer_map
;
811 pipe
->transfer_unmap
= llvmpipe_transfer_unmap
;
813 pipe
->transfer_flush_region
= u_default_transfer_flush_region
;
814 pipe
->transfer_inline_write
= u_default_transfer_inline_write
;