1 /**************************************************************************
3 * Copyright 2006 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 * Keith Whitwell <keith@tungstengraphics.com>
30 * Michel Dänzer <michel@tungstengraphics.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/u_simple_list.h"
44 #include "util/u_transfer.h"
46 #include "lp_context.h"
48 #include "lp_screen.h"
49 #include "lp_tile_image.h"
50 #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 resource_is_texture(const struct pipe_resource
*resource
)
66 switch (resource
->target
) {
71 case PIPE_TEXTURE_RECT
:
73 case PIPE_TEXTURE_CUBE
:
84 * Allocate storage for llvmpipe_texture::layout array.
85 * The number of elements is width_in_tiles * height_in_tiles.
87 static enum lp_texture_layout
*
88 alloc_layout_array(unsigned num_slices
, unsigned width
, unsigned height
)
90 const unsigned tx
= align(width
, TILE_SIZE
) / TILE_SIZE
;
91 const unsigned ty
= align(height
, TILE_SIZE
) / TILE_SIZE
;
93 assert(num_slices
* tx
* ty
> 0);
94 assert(LP_TEX_LAYOUT_NONE
== 0); /* calloc'ing LP_TEX_LAYOUT_NONE here */
96 return (enum lp_texture_layout
*)
97 CALLOC(num_slices
* tx
* ty
, sizeof(enum lp_texture_layout
));
103 * Conventional allocation path for non-display textures:
104 * Just compute row strides here. Storage is allocated on demand later.
107 llvmpipe_texture_layout(struct llvmpipe_screen
*screen
,
108 struct llvmpipe_resource
*lpr
)
110 struct pipe_resource
*pt
= &lpr
->base
;
112 unsigned width
= pt
->width0
;
113 unsigned height
= pt
->height0
;
114 unsigned depth
= pt
->depth0
;
115 size_t total_size
= 0;
117 assert(LP_MAX_TEXTURE_2D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
118 assert(LP_MAX_TEXTURE_3D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
120 for (level
= 0; level
<= pt
->last_level
; level
++) {
122 /* Row stride and image stride (for linear layout) */
124 unsigned alignment
, nblocksx
, nblocksy
, block_size
;
126 /* For non-compressed formats we need to align the texture size
127 * to the tile size to facilitate render-to-texture.
129 if (util_format_is_compressed(pt
->format
))
132 alignment
= TILE_SIZE
;
134 nblocksx
= util_format_get_nblocksx(pt
->format
,
135 align(width
, alignment
));
136 nblocksy
= util_format_get_nblocksy(pt
->format
,
137 align(height
, alignment
));
138 block_size
= util_format_get_blocksize(pt
->format
);
140 lpr
->row_stride
[level
] = align(nblocksx
* block_size
, 16);
142 lpr
->img_stride
[level
] = lpr
->row_stride
[level
] * nblocksy
;
145 /* Size of the image in tiles (for tiled layout) */
147 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
148 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
149 lpr
->tiles_per_row
[level
] = width_t
;
150 lpr
->tiles_per_image
[level
] = width_t
* height_t
;
153 /* Number of 3D image slices or cube faces */
157 if (lpr
->base
.target
== PIPE_TEXTURE_CUBE
)
159 else if (lpr
->base
.target
== PIPE_TEXTURE_3D
)
164 lpr
->num_slices_faces
[level
] = num_slices
;
166 lpr
->layout
[level
] = alloc_layout_array(num_slices
, width
, height
);
167 if (!lpr
->layout
[level
]) {
172 total_size
+= lpr
->num_slices_faces
[level
] * lpr
->img_stride
[level
];
173 if (total_size
> LP_MAX_TEXTURE_SIZE
) {
177 /* Compute size of next mipmap level */
178 width
= u_minify(width
, 1);
179 height
= u_minify(height
, 1);
180 depth
= u_minify(depth
, 1);
186 for (level
= 0; level
<= pt
->last_level
; level
++) {
187 FREE(lpr
->layout
[level
]);
196 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
197 struct llvmpipe_resource
*lpr
)
199 struct sw_winsys
*winsys
= screen
->winsys
;
201 /* Round up the surface size to a multiple of the tile size to
202 * avoid tile clipping.
204 const unsigned width
= align(lpr
->base
.width0
, TILE_SIZE
);
205 const unsigned height
= align(lpr
->base
.height0
, TILE_SIZE
);
206 const unsigned width_t
= width
/ TILE_SIZE
;
207 const unsigned height_t
= height
/ TILE_SIZE
;
209 lpr
->tiles_per_row
[0] = width_t
;
210 lpr
->tiles_per_image
[0] = width_t
* height_t
;
211 lpr
->num_slices_faces
[0] = 1;
212 lpr
->img_stride
[0] = 0;
214 lpr
->layout
[0] = alloc_layout_array(1, width
, height
);
215 if (!lpr
->layout
[0]) {
219 lpr
->dt
= winsys
->displaytarget_create(winsys
,
224 &lpr
->row_stride
[0] );
230 void *map
= winsys
->displaytarget_map(winsys
, lpr
->dt
,
231 PIPE_TRANSFER_WRITE
);
234 memset(map
, 0, height
* lpr
->row_stride
[0]);
236 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
243 static struct pipe_resource
*
244 llvmpipe_resource_create(struct pipe_screen
*_screen
,
245 const struct pipe_resource
*templat
)
247 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
248 struct llvmpipe_resource
*lpr
= CALLOC_STRUCT(llvmpipe_resource
);
252 lpr
->base
= *templat
;
253 pipe_reference_init(&lpr
->base
.reference
, 1);
254 lpr
->base
.screen
= &screen
->base
;
256 /* assert(lpr->base.bind); */
258 if (resource_is_texture(&lpr
->base
)) {
259 if (lpr
->base
.bind
& PIPE_BIND_DISPLAY_TARGET
) {
260 /* displayable surface */
261 if (!llvmpipe_displaytarget_layout(screen
, lpr
))
263 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
267 if (!llvmpipe_texture_layout(screen
, lpr
))
269 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
271 assert(lpr
->layout
[0]);
274 /* other data (vertex buffer, const buffer, etc) */
275 const enum pipe_format format
= templat
->format
;
276 const uint w
= templat
->width0
/ util_format_get_blockheight(format
);
277 /* XXX buffers should only have one dimension, those values should be 1 */
278 const uint h
= templat
->height0
/ util_format_get_blockwidth(format
);
279 const uint d
= templat
->depth0
;
280 const uint bpp
= util_format_get_blocksize(format
);
281 const uint bytes
= w
* h
* d
* bpp
;
282 lpr
->data
= align_malloc(bytes
, 16);
285 memset(lpr
->data
, 0, bytes
);
288 lpr
->id
= id_counter
++;
291 insert_at_tail(&resource_list
, lpr
);
303 llvmpipe_resource_destroy(struct pipe_screen
*pscreen
,
304 struct pipe_resource
*pt
)
306 struct llvmpipe_screen
*screen
= llvmpipe_screen(pscreen
);
307 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
311 struct sw_winsys
*winsys
= screen
->winsys
;
312 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
314 if (lpr
->tiled
[0].data
) {
315 align_free(lpr
->tiled
[0].data
);
316 lpr
->tiled
[0].data
= NULL
;
319 FREE(lpr
->layout
[0]);
321 else if (resource_is_texture(pt
)) {
322 /* regular texture */
325 /* free linear image data */
326 for (level
= 0; level
< Elements(lpr
->linear
); level
++) {
327 if (lpr
->linear
[level
].data
) {
328 align_free(lpr
->linear
[level
].data
);
329 lpr
->linear
[level
].data
= NULL
;
333 /* free tiled image data */
334 for (level
= 0; level
< Elements(lpr
->tiled
); level
++) {
335 if (lpr
->tiled
[level
].data
) {
336 align_free(lpr
->tiled
[level
].data
);
337 lpr
->tiled
[level
].data
= NULL
;
341 /* free layout flag arrays */
342 for (level
= 0; level
< Elements(lpr
->tiled
); level
++) {
343 FREE(lpr
->layout
[level
]);
344 lpr
->layout
[level
] = NULL
;
347 else if (!lpr
->userBuffer
) {
349 align_free(lpr
->data
);
354 remove_from_list(lpr
);
362 * Map a resource for read/write.
365 llvmpipe_resource_map(struct pipe_resource
*resource
,
368 enum lp_texture_usage tex_usage
,
369 enum lp_texture_layout layout
)
371 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
374 assert(level
< LP_MAX_TEXTURE_LEVELS
);
375 assert(layer
< (u_minify(resource
->depth0
, level
) + resource
->array_size
- 1));
377 assert(tex_usage
== LP_TEX_USAGE_READ
||
378 tex_usage
== LP_TEX_USAGE_READ_WRITE
||
379 tex_usage
== LP_TEX_USAGE_WRITE_ALL
);
381 assert(layout
== LP_TEX_LAYOUT_NONE
||
382 layout
== LP_TEX_LAYOUT_TILED
||
383 layout
== LP_TEX_LAYOUT_LINEAR
);
387 struct llvmpipe_screen
*screen
= llvmpipe_screen(resource
->screen
);
388 struct sw_winsys
*winsys
= screen
->winsys
;
392 if (tex_usage
== LP_TEX_USAGE_READ
) {
393 dt_usage
= PIPE_TRANSFER_READ
;
396 dt_usage
= PIPE_TRANSFER_READ_WRITE
;
402 /* FIXME: keep map count? */
403 map
= winsys
->displaytarget_map(winsys
, lpr
->dt
, dt_usage
);
405 /* install this linear image in texture data structure */
406 lpr
->linear
[level
].data
= map
;
408 /* make sure tiled data gets converted to linear data */
409 map2
= llvmpipe_get_texture_image(lpr
, 0, 0, tex_usage
, layout
);
410 if (layout
== LP_TEX_LAYOUT_LINEAR
)
415 else if (resource_is_texture(resource
)) {
417 map
= llvmpipe_get_texture_image(lpr
, layer
, level
,
431 llvmpipe_resource_unmap(struct pipe_resource
*resource
,
435 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
439 struct llvmpipe_screen
*lp_screen
= llvmpipe_screen(resource
->screen
);
440 struct sw_winsys
*winsys
= lp_screen
->winsys
;
445 /* make sure linear image is up to date */
446 (void) llvmpipe_get_texture_image(lpr
, layer
, level
,
448 LP_TEX_LAYOUT_LINEAR
);
450 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
456 llvmpipe_resource_data(struct pipe_resource
*resource
)
458 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
460 assert(!resource_is_texture(resource
));
466 static struct pipe_resource
*
467 llvmpipe_resource_from_handle(struct pipe_screen
*screen
,
468 const struct pipe_resource
*template,
469 struct winsys_handle
*whandle
)
471 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
472 struct llvmpipe_resource
*lpr
;
473 unsigned width
, height
, width_t
, height_t
;
475 /* XXX Seems like from_handled depth textures doesn't work that well */
477 lpr
= CALLOC_STRUCT(llvmpipe_resource
);
482 lpr
->base
= *template;
483 pipe_reference_init(&lpr
->base
.reference
, 1);
484 lpr
->base
.screen
= screen
;
486 width
= align(lpr
->base
.width0
, TILE_SIZE
);
487 height
= align(lpr
->base
.height0
, TILE_SIZE
);
488 width_t
= width
/ TILE_SIZE
;
489 height_t
= height
/ TILE_SIZE
;
492 * Looks like unaligned displaytargets work just fine,
493 * at least sampler/render ones.
496 assert(lpr
->base
.width0
== width
);
497 assert(lpr
->base
.height0
== height
);
500 lpr
->tiles_per_row
[0] = width_t
;
501 lpr
->tiles_per_image
[0] = width_t
* height_t
;
502 lpr
->num_slices_faces
[0] = 1;
503 lpr
->img_stride
[0] = 0;
505 lpr
->dt
= winsys
->displaytarget_from_handle(winsys
,
508 &lpr
->row_stride
[0]);
513 lpr
->layout
[0] = alloc_layout_array(1, lpr
->base
.width0
, lpr
->base
.height0
);
514 if (!lpr
->layout
[0]) {
518 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
520 lpr
->id
= id_counter
++;
523 insert_at_tail(&resource_list
, lpr
);
529 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
538 llvmpipe_resource_get_handle(struct pipe_screen
*screen
,
539 struct pipe_resource
*pt
,
540 struct winsys_handle
*whandle
)
542 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
543 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
549 return winsys
->displaytarget_get_handle(winsys
, lpr
->dt
, whandle
);
553 static struct pipe_surface
*
554 llvmpipe_create_surface(struct pipe_context
*pipe
,
555 struct pipe_resource
*pt
,
556 const struct pipe_surface
*surf_tmpl
)
558 struct pipe_surface
*ps
;
560 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
562 ps
= CALLOC_STRUCT(pipe_surface
);
564 pipe_reference_init(&ps
->reference
, 1);
565 pipe_resource_reference(&ps
->texture
, pt
);
567 ps
->format
= surf_tmpl
->format
;
568 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
569 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
570 ps
->usage
= surf_tmpl
->usage
;
572 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
573 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
574 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
581 llvmpipe_surface_destroy(struct pipe_context
*pipe
,
582 struct pipe_surface
*surf
)
584 /* Effectively do the texture_update work here - if texture images
585 * needed post-processing to put them into hardware layout, this is
586 * where it would happen. For llvmpipe, nothing to do.
588 assert(surf
->texture
);
589 pipe_resource_reference(&surf
->texture
, NULL
);
594 static struct pipe_transfer
*
595 llvmpipe_get_transfer(struct pipe_context
*pipe
,
596 struct pipe_resource
*resource
,
599 const struct pipe_box
*box
)
601 struct llvmpipe_context
*llvmpipe
= llvmpipe_context(pipe
);
602 struct llvmpipe_resource
*lprex
= llvmpipe_resource(resource
);
603 struct llvmpipe_transfer
*lpr
;
606 assert(level
<= resource
->last_level
);
609 * Transfers, like other pipe operations, must happen in order, so flush the
610 * context if necessary.
612 if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
613 boolean read_only
= !(usage
& PIPE_TRANSFER_WRITE
);
614 boolean do_not_block
= !!(usage
& PIPE_TRANSFER_DONTBLOCK
);
615 if (!llvmpipe_flush_resource(pipe
, resource
,
617 box
->depth
> 1 ? -1 : box
->z
,
619 TRUE
, /* cpu_access */
623 * It would have blocked, but state tracker requested no to.
625 assert(do_not_block
);
630 if (resource
== llvmpipe
->constants
[PIPE_SHADER_FRAGMENT
][0])
631 llvmpipe
->dirty
|= LP_NEW_CONSTANTS
;
633 lpr
= CALLOC_STRUCT(llvmpipe_transfer
);
635 struct pipe_transfer
*pt
= &lpr
->base
;
636 pipe_resource_reference(&pt
->resource
, resource
);
639 pt
->stride
= lprex
->row_stride
[level
];
640 pt
->layer_stride
= lprex
->img_stride
[level
];
650 llvmpipe_transfer_destroy(struct pipe_context
*pipe
,
651 struct pipe_transfer
*transfer
)
653 /* Effectively do the texture_update work here - if texture images
654 * needed post-processing to put them into hardware layout, this is
655 * where it would happen. For llvmpipe, nothing to do.
657 assert (transfer
->resource
);
658 pipe_resource_reference(&transfer
->resource
, NULL
);
664 llvmpipe_transfer_map( struct pipe_context
*pipe
,
665 struct pipe_transfer
*transfer
)
667 struct llvmpipe_screen
*screen
= llvmpipe_screen(pipe
->screen
);
669 struct llvmpipe_resource
*lpr
;
670 enum pipe_format format
;
671 enum lp_texture_usage tex_usage
;
674 assert(transfer
->level
< LP_MAX_TEXTURE_LEVELS
);
677 printf("tex_transfer_map(%d, %d %d x %d of %d x %d, usage %d )\n",
678 transfer->x, transfer->y, transfer->width, transfer->height,
679 transfer->texture->width0,
680 transfer->texture->height0,
684 if (transfer
->usage
== PIPE_TRANSFER_READ
) {
685 tex_usage
= LP_TEX_USAGE_READ
;
689 tex_usage
= LP_TEX_USAGE_READ_WRITE
;
694 struct llvmpipe_resource
*lpr
= llvmpipe_resource(transfer
->resource
);
695 printf("transfer map tex %u mode %s\n", lpr
->id
, mode
);
699 assert(transfer
->resource
);
700 lpr
= llvmpipe_resource(transfer
->resource
);
701 format
= lpr
->base
.format
;
703 map
= llvmpipe_resource_map(transfer
->resource
,
706 tex_usage
, LP_TEX_LAYOUT_LINEAR
);
709 /* May want to do different things here depending on read/write nature
712 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
713 /* Do something to notify sharing contexts of a texture change.
719 transfer
->box
.y
/ util_format_get_blockheight(format
) * transfer
->stride
+
720 transfer
->box
.x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
727 llvmpipe_transfer_unmap(struct pipe_context
*pipe
,
728 struct pipe_transfer
*transfer
)
730 assert(transfer
->resource
);
732 llvmpipe_resource_unmap(transfer
->resource
,
738 llvmpipe_is_resource_referenced( struct pipe_context
*pipe
,
739 struct pipe_resource
*presource
,
740 unsigned level
, int layer
)
742 struct llvmpipe_context
*llvmpipe
= llvmpipe_context( pipe
);
744 if (presource
->target
== PIPE_BUFFER
)
745 return LP_UNREFERENCED
;
747 return lp_setup_is_resource_referenced(llvmpipe
->setup
, presource
);
753 * Create buffer which wraps user-space data.
755 struct pipe_resource
*
756 llvmpipe_user_buffer_create(struct pipe_screen
*screen
,
761 struct llvmpipe_resource
*buffer
;
763 buffer
= CALLOC_STRUCT(llvmpipe_resource
);
767 pipe_reference_init(&buffer
->base
.reference
, 1);
768 buffer
->base
.screen
= screen
;
769 buffer
->base
.format
= PIPE_FORMAT_R8_UNORM
; /* ?? */
770 buffer
->base
.bind
= bind_flags
;
771 buffer
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
772 buffer
->base
.flags
= 0;
773 buffer
->base
.width0
= bytes
;
774 buffer
->base
.height0
= 1;
775 buffer
->base
.depth0
= 1;
776 buffer
->base
.array_size
= 1;
777 buffer
->userBuffer
= TRUE
;
780 return &buffer
->base
;
785 * Compute size (in bytes) need to store a texture image / mipmap level,
786 * for just one cube face or one 3D texture slice
789 tex_image_face_size(const struct llvmpipe_resource
*lpr
, unsigned level
,
790 enum lp_texture_layout layout
)
792 const unsigned width
= u_minify(lpr
->base
.width0
, level
);
793 const unsigned height
= u_minify(lpr
->base
.height0
, level
);
795 assert(layout
== LP_TEX_LAYOUT_TILED
||
796 layout
== LP_TEX_LAYOUT_LINEAR
);
798 if (layout
== LP_TEX_LAYOUT_TILED
) {
799 /* for tiled layout, force a 32bpp format */
800 const enum pipe_format format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
801 const unsigned block_size
= util_format_get_blocksize(format
);
802 const unsigned nblocksy
=
803 util_format_get_nblocksy(format
, align(height
, TILE_SIZE
));
804 const unsigned nblocksx
=
805 util_format_get_nblocksx(format
, align(width
, TILE_SIZE
));
806 const unsigned buffer_size
= block_size
* nblocksy
* nblocksx
;
810 /* we already computed this */
811 return lpr
->img_stride
[level
];
817 * Compute size (in bytes) need to store a texture image / mipmap level,
818 * including all cube faces or 3D image slices
821 tex_image_size(const struct llvmpipe_resource
*lpr
, unsigned level
,
822 enum lp_texture_layout layout
)
824 const unsigned buf_size
= tex_image_face_size(lpr
, level
, layout
);
825 return buf_size
* lpr
->num_slices_faces
[level
];
830 * This function encapsulates some complicated logic for determining
831 * how to convert a tile of image data from linear layout to tiled
832 * layout, or vice versa.
833 * \param cur_layout the current tile layout
834 * \param target_layout the desired tile layout
835 * \param usage how the tile will be accessed (R/W vs. read-only, etc)
836 * \param new_layout_return returns the new layout mode
837 * \param convert_return returns TRUE if image conversion is needed
840 layout_logic(enum lp_texture_layout cur_layout
,
841 enum lp_texture_layout target_layout
,
842 enum lp_texture_usage usage
,
843 enum lp_texture_layout
*new_layout_return
,
846 enum lp_texture_layout other_layout
, new_layout
;
850 new_layout
= 99; /* debug check */
852 if (target_layout
== LP_TEX_LAYOUT_LINEAR
) {
853 other_layout
= LP_TEX_LAYOUT_TILED
;
856 assert(target_layout
== LP_TEX_LAYOUT_TILED
);
857 other_layout
= LP_TEX_LAYOUT_LINEAR
;
860 new_layout
= target_layout
; /* may get changed below */
862 if (cur_layout
== LP_TEX_LAYOUT_BOTH
) {
863 if (usage
== LP_TEX_USAGE_READ
) {
864 new_layout
= LP_TEX_LAYOUT_BOTH
;
867 else if (cur_layout
== other_layout
) {
868 if (usage
!= LP_TEX_USAGE_WRITE_ALL
) {
869 /* need to convert tiled data to linear or vice versa */
872 if (usage
== LP_TEX_USAGE_READ
)
873 new_layout
= LP_TEX_LAYOUT_BOTH
;
877 assert(cur_layout
== LP_TEX_LAYOUT_NONE
||
878 cur_layout
== target_layout
);
881 assert(new_layout
== LP_TEX_LAYOUT_BOTH
||
882 new_layout
== target_layout
);
884 *new_layout_return
= new_layout
;
889 * Return pointer to a 2D texture image/face/slice.
890 * No tiled/linear conversion is done.
893 llvmpipe_get_texture_image_address(struct llvmpipe_resource
*lpr
,
894 unsigned face_slice
, unsigned level
,
895 enum lp_texture_layout layout
)
897 struct llvmpipe_texture_image
*img
;
900 if (layout
== LP_TEX_LAYOUT_LINEAR
) {
901 img
= &lpr
->linear
[level
];
904 assert (layout
== LP_TEX_LAYOUT_TILED
);
905 img
= &lpr
->tiled
[level
];
909 offset
= face_slice
* tex_image_face_size(lpr
, level
, layout
);
913 return (ubyte
*) img
->data
+ offset
;
917 static INLINE
enum lp_texture_layout
918 llvmpipe_get_texture_tile_layout(const struct llvmpipe_resource
*lpr
,
919 unsigned face_slice
, unsigned level
,
920 unsigned x
, unsigned y
)
923 assert(resource_is_texture(&lpr
->base
));
924 assert(x
< lpr
->tiles_per_row
[level
]);
925 i
= face_slice
* lpr
->tiles_per_image
[level
]
926 + y
* lpr
->tiles_per_row
[level
] + x
;
927 return lpr
->layout
[level
][i
];
932 llvmpipe_set_texture_tile_layout(struct llvmpipe_resource
*lpr
,
933 unsigned face_slice
, unsigned level
,
934 unsigned x
, unsigned y
,
935 enum lp_texture_layout layout
)
938 assert(resource_is_texture(&lpr
->base
));
939 assert(x
< lpr
->tiles_per_row
[level
]);
940 i
= face_slice
* lpr
->tiles_per_image
[level
]
941 + y
* lpr
->tiles_per_row
[level
] + x
;
942 lpr
->layout
[level
][i
] = layout
;
947 * Set the layout mode for all tiles in a particular image.
950 llvmpipe_set_texture_image_layout(struct llvmpipe_resource
*lpr
,
951 unsigned face_slice
, unsigned level
,
952 unsigned width_t
, unsigned height_t
,
953 enum lp_texture_layout layout
)
955 const unsigned start
= face_slice
* lpr
->tiles_per_image
[level
];
958 for (i
= 0; i
< width_t
* height_t
; i
++) {
959 lpr
->layout
[level
][start
+ i
] = layout
;
965 * Allocate storage for a linear or tile texture image (all cube
966 * faces and all 3D slices.
969 alloc_image_data(struct llvmpipe_resource
*lpr
, unsigned level
,
970 enum lp_texture_layout layout
)
972 uint alignment
= MAX2(16, util_cpu_caps
.cacheline
);
977 if (layout
== LP_TEX_LAYOUT_TILED
) {
978 /* tiled data is stored in regular memory */
979 uint buffer_size
= tex_image_size(lpr
, level
, layout
);
980 lpr
->tiled
[level
].data
= align_malloc(buffer_size
, alignment
);
981 if (lpr
->tiled
[level
].data
) {
982 memset(lpr
->tiled
[level
].data
, 0, buffer_size
);
986 assert(layout
== LP_TEX_LAYOUT_LINEAR
);
988 /* we get the linear memory from the winsys, and it has
989 * already been zeroed
991 struct llvmpipe_screen
*screen
= llvmpipe_screen(lpr
->base
.screen
);
992 struct sw_winsys
*winsys
= screen
->winsys
;
994 lpr
->linear
[0].data
=
995 winsys
->displaytarget_map(winsys
, lpr
->dt
,
996 PIPE_TRANSFER_READ_WRITE
);
999 /* not a display target - allocate regular memory */
1000 uint buffer_size
= tex_image_size(lpr
, level
, LP_TEX_LAYOUT_LINEAR
);
1001 lpr
->linear
[level
].data
= align_malloc(buffer_size
, alignment
);
1002 if (lpr
->linear
[level
].data
) {
1003 memset(lpr
->linear
[level
].data
, 0, buffer_size
);
1012 * Return pointer to texture image data (either linear or tiled layout)
1013 * for a particular cube face or 3D texture slice.
1015 * \param face_slice the cube face or 3D slice of interest
1016 * \param usage one of LP_TEX_USAGE_READ/WRITE_ALL/READ_WRITE
1017 * \param layout either LP_TEX_LAYOUT_LINEAR or _TILED or _NONE
1020 llvmpipe_get_texture_image(struct llvmpipe_resource
*lpr
,
1021 unsigned face_slice
, unsigned level
,
1022 enum lp_texture_usage usage
,
1023 enum lp_texture_layout layout
)
1026 * 'target' refers to the image which we're retrieving (either in
1027 * tiled or linear layout).
1028 * 'other' refers to the same image but in the other layout. (it may
1031 struct llvmpipe_texture_image
*target_img
;
1032 struct llvmpipe_texture_image
*other_img
;
1035 const unsigned width
= u_minify(lpr
->base
.width0
, level
);
1036 const unsigned height
= u_minify(lpr
->base
.height0
, level
);
1037 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
1038 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
1039 enum lp_texture_layout other_layout
;
1040 boolean only_allocate
;
1042 assert(layout
== LP_TEX_LAYOUT_NONE
||
1043 layout
== LP_TEX_LAYOUT_TILED
||
1044 layout
== LP_TEX_LAYOUT_LINEAR
);
1046 assert(usage
== LP_TEX_USAGE_READ
||
1047 usage
== LP_TEX_USAGE_READ_WRITE
||
1048 usage
== LP_TEX_USAGE_WRITE_ALL
);
1050 /* check for the special case of layout == LP_TEX_LAYOUT_NONE */
1051 if (layout
== LP_TEX_LAYOUT_NONE
) {
1052 only_allocate
= TRUE
;
1053 layout
= LP_TEX_LAYOUT_TILED
;
1056 only_allocate
= FALSE
;
1060 assert(lpr
->linear
[level
].data
);
1063 /* which is target? which is other? */
1064 if (layout
== LP_TEX_LAYOUT_LINEAR
) {
1065 target_img
= &lpr
->linear
[level
];
1066 other_img
= &lpr
->tiled
[level
];
1067 other_layout
= LP_TEX_LAYOUT_TILED
;
1070 target_img
= &lpr
->tiled
[level
];
1071 other_img
= &lpr
->linear
[level
];
1072 other_layout
= LP_TEX_LAYOUT_LINEAR
;
1075 target_data
= target_img
->data
;
1076 other_data
= other_img
->data
;
1079 /* allocate memory for the target image now */
1080 alloc_image_data(lpr
, level
, layout
);
1081 target_data
= target_img
->data
;
1084 if (face_slice
> 0) {
1085 unsigned target_offset
, other_offset
;
1087 target_offset
= face_slice
* tex_image_face_size(lpr
, level
, layout
);
1088 other_offset
= face_slice
* tex_image_face_size(lpr
, level
, other_layout
);
1090 target_data
= (uint8_t *) target_data
+ target_offset
;
1093 other_data
= (uint8_t *) other_data
+ other_offset
;
1097 if (only_allocate
) {
1098 /* Just allocating tiled memory. Don't initialize it from the
1099 * linear data if it exists.
1105 /* may need to convert other data to the requested layout */
1106 enum lp_texture_layout new_layout
;
1109 /* loop over all image tiles, doing layout conversion where needed */
1110 for (y
= 0; y
< height_t
; y
++) {
1111 for (x
= 0; x
< width_t
; x
++) {
1112 enum lp_texture_layout cur_layout
=
1113 llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, x
, y
);
1116 layout_logic(cur_layout
, layout
, usage
, &new_layout
, &convert
);
1118 if (convert
&& other_data
&& target_data
) {
1119 if (layout
== LP_TEX_LAYOUT_TILED
) {
1120 lp_linear_to_tiled(other_data
, target_data
,
1121 x
* TILE_SIZE
, y
* TILE_SIZE
,
1122 TILE_SIZE
, TILE_SIZE
,
1124 lpr
->row_stride
[level
],
1125 lpr
->tiles_per_row
[level
]);
1128 assert(layout
== LP_TEX_LAYOUT_LINEAR
);
1129 lp_tiled_to_linear(other_data
, target_data
,
1130 x
* TILE_SIZE
, y
* TILE_SIZE
,
1131 TILE_SIZE
, TILE_SIZE
,
1133 lpr
->row_stride
[level
],
1134 lpr
->tiles_per_row
[level
]);
1138 if (new_layout
!= cur_layout
)
1139 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, x
, y
,
1146 llvmpipe_set_texture_image_layout(lpr
, face_slice
, level
,
1147 width_t
, height_t
, layout
);
1155 * Return pointer to start of a texture image (1D, 2D, 3D, CUBE).
1156 * All cube faces and 3D slices will be converted to the requested
1158 * This is typically used when we're about to sample from a texture.
1161 llvmpipe_get_texture_image_all(struct llvmpipe_resource
*lpr
,
1163 enum lp_texture_usage usage
,
1164 enum lp_texture_layout layout
)
1166 const int slices
= lpr
->num_slices_faces
[level
];
1172 for (slice
= slices
- 1; slice
>= 0; slice
--) {
1173 map
= llvmpipe_get_texture_image(lpr
, slice
, level
, usage
, layout
);
1181 * Get pointer to a linear image (not the tile!) where the tile at (x,y)
1182 * is known to be in linear layout.
1183 * Conversion from tiled to linear will be done if necessary.
1184 * \return pointer to start of image/face (not the tile)
1187 llvmpipe_get_texture_tile_linear(struct llvmpipe_resource
*lpr
,
1188 unsigned face_slice
, unsigned level
,
1189 enum lp_texture_usage usage
,
1190 unsigned x
, unsigned y
)
1192 struct llvmpipe_texture_image
*linear_img
= &lpr
->linear
[level
];
1193 enum lp_texture_layout cur_layout
, new_layout
;
1194 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1196 uint8_t *tiled_image
, *linear_image
;
1198 assert(resource_is_texture(&lpr
->base
));
1199 assert(x
% TILE_SIZE
== 0);
1200 assert(y
% TILE_SIZE
== 0);
1202 if (!linear_img
->data
) {
1203 /* allocate memory for the linear image now */
1204 alloc_image_data(lpr
, level
, LP_TEX_LAYOUT_LINEAR
);
1207 /* compute address of the slice/face of the image that contains the tile */
1208 tiled_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1209 LP_TEX_LAYOUT_TILED
);
1210 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1211 LP_TEX_LAYOUT_LINEAR
);
1213 /* get current tile layout and determine if data conversion is needed */
1214 cur_layout
= llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
);
1216 layout_logic(cur_layout
, LP_TEX_LAYOUT_LINEAR
, usage
,
1217 &new_layout
, &convert
);
1219 if (convert
&& tiled_image
&& linear_image
) {
1220 lp_tiled_to_linear(tiled_image
, linear_image
,
1221 x
, y
, TILE_SIZE
, TILE_SIZE
, lpr
->base
.format
,
1222 lpr
->row_stride
[level
],
1223 lpr
->tiles_per_row
[level
]);
1226 if (new_layout
!= cur_layout
)
1227 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
, new_layout
);
1229 return linear_image
;
1234 * Get pointer to tiled data for rendering.
1235 * \return pointer to the tiled data at the given tile position
1238 llvmpipe_get_texture_tile(struct llvmpipe_resource
*lpr
,
1239 unsigned face_slice
, unsigned level
,
1240 enum lp_texture_usage usage
,
1241 unsigned x
, unsigned y
)
1243 struct llvmpipe_texture_image
*tiled_img
= &lpr
->tiled
[level
];
1244 enum lp_texture_layout cur_layout
, new_layout
;
1245 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1247 uint8_t *tiled_image
, *linear_image
;
1248 unsigned tile_offset
;
1250 assert(x
% TILE_SIZE
== 0);
1251 assert(y
% TILE_SIZE
== 0);
1253 if (!tiled_img
->data
) {
1254 /* allocate memory for the tiled image now */
1255 alloc_image_data(lpr
, level
, LP_TEX_LAYOUT_TILED
);
1258 /* compute address of the slice/face of the image that contains the tile */
1259 tiled_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1260 LP_TEX_LAYOUT_TILED
);
1261 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1262 LP_TEX_LAYOUT_LINEAR
);
1264 /* get current tile layout and see if we need to convert the data */
1265 cur_layout
= llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
);
1267 layout_logic(cur_layout
, LP_TEX_LAYOUT_TILED
, usage
, &new_layout
, &convert
);
1268 if (convert
&& linear_image
&& tiled_image
) {
1269 lp_linear_to_tiled(linear_image
, tiled_image
,
1270 x
, y
, TILE_SIZE
, TILE_SIZE
, lpr
->base
.format
,
1271 lpr
->row_stride
[level
],
1272 lpr
->tiles_per_row
[level
]);
1278 if (new_layout
!= cur_layout
)
1279 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
, new_layout
);
1281 /* compute, return address of the 64x64 tile */
1282 tile_offset
= (ty
* lpr
->tiles_per_row
[level
] + tx
)
1283 * TILE_SIZE
* TILE_SIZE
* 4;
1285 return (ubyte
*) tiled_image
+ tile_offset
;
1290 * Get pointer to tiled data for rendering.
1291 * \return pointer to the tiled data at the given tile position
1294 llvmpipe_unswizzle_cbuf_tile(struct llvmpipe_resource
*lpr
,
1295 unsigned face_slice
, unsigned level
,
1296 unsigned x
, unsigned y
,
1299 struct llvmpipe_texture_image
*linear_img
= &lpr
->linear
[level
];
1300 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1301 uint8_t *linear_image
;
1303 assert(x
% TILE_SIZE
== 0);
1304 assert(y
% TILE_SIZE
== 0);
1306 if (!linear_img
->data
) {
1307 /* allocate memory for the linear image now */
1308 alloc_image_data(lpr
, level
, LP_TEX_LAYOUT_LINEAR
);
1311 /* compute address of the slice/face of the image that contains the tile */
1312 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1313 LP_TEX_LAYOUT_LINEAR
);
1316 uint ii
= x
, jj
= y
;
1317 uint tile_offset
= jj
/ TILE_SIZE
+ ii
/ TILE_SIZE
;
1318 uint byte_offset
= tile_offset
* TILE_SIZE
* TILE_SIZE
* 4;
1320 /* Note that lp_tiled_to_linear expects the tile parameter to
1321 * point at the first tile in a whole-image sized array. In
1322 * this code, we have only a single tile and have to do some
1323 * pointer arithmetic to figure out where the "image" would have
1326 lp_tiled_to_linear(tile
- byte_offset
, linear_image
,
1327 x
, y
, TILE_SIZE
, TILE_SIZE
,
1329 lpr
->row_stride
[level
],
1330 1); /* tiles per row */
1333 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
,
1334 LP_TEX_LAYOUT_LINEAR
);
1339 * Get pointer to tiled data for rendering.
1340 * \return pointer to the tiled data at the given tile position
1343 llvmpipe_swizzle_cbuf_tile(struct llvmpipe_resource
*lpr
,
1344 unsigned face_slice
, unsigned level
,
1345 unsigned x
, unsigned y
,
1348 uint8_t *linear_image
;
1350 assert(x
% TILE_SIZE
== 0);
1351 assert(y
% TILE_SIZE
== 0);
1353 /* compute address of the slice/face of the image that contains the tile */
1354 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1355 LP_TEX_LAYOUT_LINEAR
);
1358 uint ii
= x
, jj
= y
;
1359 uint tile_offset
= jj
/ TILE_SIZE
+ ii
/ TILE_SIZE
;
1360 uint byte_offset
= tile_offset
* TILE_SIZE
* TILE_SIZE
* 4;
1362 /* Note that lp_linear_to_tiled expects the tile parameter to
1363 * point at the first tile in a whole-image sized array. In
1364 * this code, we have only a single tile and have to do some
1365 * pointer arithmetic to figure out where the "image" would have
1368 lp_linear_to_tiled(linear_image
, tile
- byte_offset
,
1369 x
, y
, TILE_SIZE
, TILE_SIZE
,
1371 lpr
->row_stride
[level
],
1372 1); /* tiles per row */
1378 * Return size of resource in bytes
1381 llvmpipe_resource_size(const struct pipe_resource
*resource
)
1383 const struct llvmpipe_resource
*lpr
= llvmpipe_resource_const(resource
);
1384 unsigned lvl
, size
= 0;
1386 for (lvl
= 0; lvl
<= lpr
->base
.last_level
; lvl
++) {
1387 if (lpr
->linear
[lvl
].data
)
1388 size
+= tex_image_size(lpr
, lvl
, LP_TEX_LAYOUT_LINEAR
);
1390 if (lpr
->tiled
[lvl
].data
)
1391 size
+= tex_image_size(lpr
, lvl
, LP_TEX_LAYOUT_TILED
);
1400 llvmpipe_print_resources(void)
1402 struct llvmpipe_resource
*lpr
;
1403 unsigned n
= 0, total
= 0;
1405 debug_printf("LLVMPIPE: current resources:\n");
1406 foreach(lpr
, &resource_list
) {
1407 unsigned size
= llvmpipe_resource_size(&lpr
->base
);
1408 debug_printf("resource %u at %p, size %ux%ux%u: %u bytes, refcount %u\n",
1409 lpr
->id
, (void *) lpr
,
1410 lpr
->base
.width0
, lpr
->base
.height0
, lpr
->base
.depth0
,
1411 size
, lpr
->base
.reference
.count
);
1415 debug_printf("LLVMPIPE: total size of %u resources: %u\n", n
, total
);
1421 llvmpipe_init_screen_resource_funcs(struct pipe_screen
*screen
)
1424 /* init linked list for tracking resources */
1426 static boolean first_call
= TRUE
;
1428 memset(&resource_list
, 0, sizeof(resource_list
));
1429 make_empty_list(&resource_list
);
1435 screen
->resource_create
= llvmpipe_resource_create
;
1436 screen
->resource_destroy
= llvmpipe_resource_destroy
;
1437 screen
->resource_from_handle
= llvmpipe_resource_from_handle
;
1438 screen
->resource_get_handle
= llvmpipe_resource_get_handle
;
1443 llvmpipe_init_context_resource_funcs(struct pipe_context
*pipe
)
1445 pipe
->get_transfer
= llvmpipe_get_transfer
;
1446 pipe
->transfer_destroy
= llvmpipe_transfer_destroy
;
1447 pipe
->transfer_map
= llvmpipe_transfer_map
;
1448 pipe
->transfer_unmap
= llvmpipe_transfer_unmap
;
1450 pipe
->transfer_flush_region
= u_default_transfer_flush_region
;
1451 pipe
->transfer_inline_write
= u_default_transfer_inline_write
;
1453 pipe
->create_surface
= llvmpipe_create_surface
;
1454 pipe
->surface_destroy
= llvmpipe_surface_destroy
;