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 * Allocate storage for llvmpipe_texture::layout array.
65 * The number of elements is width_in_tiles * height_in_tiles.
67 static enum lp_texture_layout
*
68 alloc_layout_array(unsigned num_slices
, unsigned width
, unsigned height
)
70 const unsigned tx
= align(width
, TILE_SIZE
) / TILE_SIZE
;
71 const unsigned ty
= align(height
, TILE_SIZE
) / TILE_SIZE
;
73 assert(num_slices
* tx
* ty
> 0);
74 assert(LP_TEX_LAYOUT_NONE
== 0); /* calloc'ing LP_TEX_LAYOUT_NONE here */
76 return (enum lp_texture_layout
*)
77 CALLOC(num_slices
* tx
* ty
, sizeof(enum lp_texture_layout
));
83 * Conventional allocation path for non-display textures:
84 * Just compute row strides here. Storage is allocated on demand later.
87 llvmpipe_texture_layout(struct llvmpipe_screen
*screen
,
88 struct llvmpipe_resource
*lpr
,
91 struct pipe_resource
*pt
= &lpr
->base
;
93 unsigned width
= pt
->width0
;
94 unsigned height
= pt
->height0
;
95 unsigned depth
= pt
->depth0
;
96 uint64_t total_size
= 0;
97 unsigned layers
= pt
->array_size
;
99 assert(LP_MAX_TEXTURE_2D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
100 assert(LP_MAX_TEXTURE_3D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
102 for (level
= 0; level
<= pt
->last_level
; level
++) {
104 /* Row stride and image stride (for linear layout) */
106 unsigned alignment
, nblocksx
, nblocksy
, block_size
;
108 /* For non-compressed formats we need to align the texture size
109 * to the tile size to facilitate render-to-texture.
110 * XXX this blows up 1d/1d array textures by unreasonable
111 * amount (factor 64), probably should do something about it.
113 if (util_format_is_compressed(pt
->format
))
116 alignment
= TILE_SIZE
;
118 nblocksx
= util_format_get_nblocksx(pt
->format
,
119 align(width
, alignment
));
120 nblocksy
= util_format_get_nblocksy(pt
->format
,
121 align(height
, alignment
));
122 block_size
= util_format_get_blocksize(pt
->format
);
124 lpr
->row_stride
[level
] = align(nblocksx
* block_size
, 16);
126 /* if row_stride * height > LP_MAX_TEXTURE_SIZE */
127 if (lpr
->row_stride
[level
] > LP_MAX_TEXTURE_SIZE
/ nblocksy
) {
128 /* image too large */
132 lpr
->img_stride
[level
] = lpr
->row_stride
[level
] * nblocksy
;
135 /* Size of the image in tiles (for tiled layout) */
137 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
138 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
139 lpr
->tiles_per_row
[level
] = width_t
;
140 lpr
->tiles_per_image
[level
] = width_t
* height_t
;
143 /* Number of 3D image slices, cube faces or texture array layers */
147 if (lpr
->base
.target
== PIPE_TEXTURE_CUBE
)
149 else if (lpr
->base
.target
== PIPE_TEXTURE_3D
)
151 else if (lpr
->base
.target
== PIPE_TEXTURE_1D_ARRAY
||
152 lpr
->base
.target
== PIPE_TEXTURE_2D_ARRAY
)
157 lpr
->num_slices_faces
[level
] = num_slices
;
160 lpr
->layout
[level
] = alloc_layout_array(num_slices
, width
, height
);
161 if (!lpr
->layout
[level
]) {
167 /* if img_stride * num_slices_faces > LP_MAX_TEXTURE_SIZE */
168 if (lpr
->img_stride
[level
] >
169 LP_MAX_TEXTURE_SIZE
/ lpr
->num_slices_faces
[level
]) {
170 /* volume too large */
174 total_size
+= (uint64_t) lpr
->num_slices_faces
[level
]
175 * (uint64_t) lpr
->img_stride
[level
];
176 if (total_size
> LP_MAX_TEXTURE_SIZE
) {
180 /* Compute size of next mipmap level */
181 width
= u_minify(width
, 1);
182 height
= u_minify(height
, 1);
183 depth
= u_minify(depth
, 1);
189 for (level
= 0; level
<= pt
->last_level
; level
++) {
190 FREE(lpr
->layout
[level
]);
198 * Check the size of the texture specified by 'res'.
199 * \return TRUE if OK, FALSE if too large.
202 llvmpipe_can_create_resource(struct pipe_screen
*screen
,
203 const struct pipe_resource
*res
)
205 struct llvmpipe_resource lpr
;
206 memset(&lpr
, 0, sizeof(lpr
));
208 return llvmpipe_texture_layout(llvmpipe_screen(screen
), &lpr
, FALSE
);
213 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
214 struct llvmpipe_resource
*lpr
)
216 struct sw_winsys
*winsys
= screen
->winsys
;
218 /* Round up the surface size to a multiple of the tile size to
219 * avoid tile clipping.
221 const unsigned width
= MAX2(1, align(lpr
->base
.width0
, TILE_SIZE
));
222 const unsigned height
= MAX2(1, align(lpr
->base
.height0
, TILE_SIZE
));
223 const unsigned width_t
= width
/ TILE_SIZE
;
224 const unsigned height_t
= height
/ TILE_SIZE
;
226 lpr
->tiles_per_row
[0] = width_t
;
227 lpr
->tiles_per_image
[0] = width_t
* height_t
;
228 lpr
->num_slices_faces
[0] = 1;
229 lpr
->img_stride
[0] = 0;
231 lpr
->layout
[0] = alloc_layout_array(1, width
, height
);
232 if (!lpr
->layout
[0]) {
236 lpr
->dt
= winsys
->displaytarget_create(winsys
,
241 &lpr
->row_stride
[0] );
247 void *map
= winsys
->displaytarget_map(winsys
, lpr
->dt
,
248 PIPE_TRANSFER_WRITE
);
251 memset(map
, 0, height
* lpr
->row_stride
[0]);
253 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
260 static struct pipe_resource
*
261 llvmpipe_resource_create(struct pipe_screen
*_screen
,
262 const struct pipe_resource
*templat
)
264 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
265 struct llvmpipe_resource
*lpr
= CALLOC_STRUCT(llvmpipe_resource
);
269 lpr
->base
= *templat
;
270 pipe_reference_init(&lpr
->base
.reference
, 1);
271 lpr
->base
.screen
= &screen
->base
;
273 /* assert(lpr->base.bind); */
275 if (llvmpipe_resource_is_texture(&lpr
->base
)) {
276 if (lpr
->base
.bind
& (PIPE_BIND_DISPLAY_TARGET
|
279 /* displayable surface */
280 if (!llvmpipe_displaytarget_layout(screen
, lpr
))
282 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
286 if (!llvmpipe_texture_layout(screen
, lpr
, TRUE
))
288 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
290 assert(lpr
->layout
[0]);
293 /* other data (vertex buffer, const buffer, etc) */
294 const uint bytes
= templat
->width0
;
295 assert(util_format_get_blocksize(templat
->format
) == 1);
296 assert(templat
->height0
== 1);
297 assert(templat
->depth0
== 1);
298 assert(templat
->last_level
== 0);
299 lpr
->data
= align_malloc(bytes
, 16);
302 memset(lpr
->data
, 0, bytes
);
305 lpr
->id
= id_counter
++;
308 insert_at_tail(&resource_list
, lpr
);
320 llvmpipe_resource_destroy(struct pipe_screen
*pscreen
,
321 struct pipe_resource
*pt
)
323 struct llvmpipe_screen
*screen
= llvmpipe_screen(pscreen
);
324 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
328 struct sw_winsys
*winsys
= screen
->winsys
;
329 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
331 if (lpr
->tiled_img
.data
) {
332 align_free(lpr
->tiled_img
.data
);
333 lpr
->tiled_img
.data
= NULL
;
336 FREE(lpr
->layout
[0]);
338 else if (llvmpipe_resource_is_texture(pt
)) {
339 /* regular texture */
342 /* free linear image data */
343 if (lpr
->linear_img
.data
) {
344 align_free(lpr
->linear_img
.data
);
345 lpr
->linear_img
.data
= NULL
;
348 /* free tiled image data */
349 if (lpr
->tiled_img
.data
) {
350 align_free(lpr
->tiled_img
.data
);
351 lpr
->tiled_img
.data
= NULL
;
354 /* free layout flag arrays */
355 for (level
= 0; level
< Elements(lpr
->layout
); level
++) {
356 FREE(lpr
->layout
[level
]);
357 lpr
->layout
[level
] = NULL
;
360 else if (!lpr
->userBuffer
) {
362 align_free(lpr
->data
);
367 remove_from_list(lpr
);
375 * Map a resource for read/write.
378 llvmpipe_resource_map(struct pipe_resource
*resource
,
381 enum lp_texture_usage tex_usage
,
382 enum lp_texture_layout layout
)
384 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
387 assert(level
< LP_MAX_TEXTURE_LEVELS
);
388 assert(layer
< (u_minify(resource
->depth0
, level
) + resource
->array_size
- 1));
390 assert(tex_usage
== LP_TEX_USAGE_READ
||
391 tex_usage
== LP_TEX_USAGE_READ_WRITE
||
392 tex_usage
== LP_TEX_USAGE_WRITE_ALL
);
394 assert(layout
== LP_TEX_LAYOUT_NONE
||
395 layout
== LP_TEX_LAYOUT_TILED
||
396 layout
== LP_TEX_LAYOUT_LINEAR
);
400 struct llvmpipe_screen
*screen
= llvmpipe_screen(resource
->screen
);
401 struct sw_winsys
*winsys
= screen
->winsys
;
405 if (tex_usage
== LP_TEX_USAGE_READ
) {
406 dt_usage
= PIPE_TRANSFER_READ
;
409 dt_usage
= PIPE_TRANSFER_READ_WRITE
;
415 /* FIXME: keep map count? */
416 map
= winsys
->displaytarget_map(winsys
, lpr
->dt
, dt_usage
);
418 /* install this linear image in texture data structure */
419 lpr
->linear_img
.data
= map
;
421 /* make sure tiled data gets converted to linear data */
422 map2
= llvmpipe_get_texture_image(lpr
, 0, 0, tex_usage
, layout
);
423 if (layout
== LP_TEX_LAYOUT_LINEAR
)
428 else if (llvmpipe_resource_is_texture(resource
)) {
430 map
= llvmpipe_get_texture_image(lpr
, layer
, level
,
444 llvmpipe_resource_unmap(struct pipe_resource
*resource
,
448 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
452 struct llvmpipe_screen
*lp_screen
= llvmpipe_screen(resource
->screen
);
453 struct sw_winsys
*winsys
= lp_screen
->winsys
;
458 /* make sure linear image is up to date */
459 (void) llvmpipe_get_texture_image(lpr
, layer
, level
,
461 LP_TEX_LAYOUT_LINEAR
);
463 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
469 llvmpipe_resource_data(struct pipe_resource
*resource
)
471 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
473 assert(!llvmpipe_resource_is_texture(resource
));
479 static struct pipe_resource
*
480 llvmpipe_resource_from_handle(struct pipe_screen
*screen
,
481 const struct pipe_resource
*template,
482 struct winsys_handle
*whandle
)
484 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
485 struct llvmpipe_resource
*lpr
;
486 unsigned width
, height
, width_t
, height_t
;
488 /* XXX Seems like from_handled depth textures doesn't work that well */
490 lpr
= CALLOC_STRUCT(llvmpipe_resource
);
495 lpr
->base
= *template;
496 pipe_reference_init(&lpr
->base
.reference
, 1);
497 lpr
->base
.screen
= screen
;
499 width
= align(lpr
->base
.width0
, TILE_SIZE
);
500 height
= align(lpr
->base
.height0
, TILE_SIZE
);
501 width_t
= width
/ TILE_SIZE
;
502 height_t
= height
/ TILE_SIZE
;
505 * Looks like unaligned displaytargets work just fine,
506 * at least sampler/render ones.
509 assert(lpr
->base
.width0
== width
);
510 assert(lpr
->base
.height0
== height
);
513 lpr
->tiles_per_row
[0] = width_t
;
514 lpr
->tiles_per_image
[0] = width_t
* height_t
;
515 lpr
->num_slices_faces
[0] = 1;
516 lpr
->img_stride
[0] = 0;
518 lpr
->dt
= winsys
->displaytarget_from_handle(winsys
,
521 &lpr
->row_stride
[0]);
526 lpr
->layout
[0] = alloc_layout_array(1, lpr
->base
.width0
, lpr
->base
.height0
);
527 if (!lpr
->layout
[0]) {
531 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
533 lpr
->id
= id_counter
++;
536 insert_at_tail(&resource_list
, lpr
);
542 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
551 llvmpipe_resource_get_handle(struct pipe_screen
*screen
,
552 struct pipe_resource
*pt
,
553 struct winsys_handle
*whandle
)
555 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
556 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
562 return winsys
->displaytarget_get_handle(winsys
, lpr
->dt
, whandle
);
566 static struct pipe_surface
*
567 llvmpipe_create_surface(struct pipe_context
*pipe
,
568 struct pipe_resource
*pt
,
569 const struct pipe_surface
*surf_tmpl
)
571 struct pipe_surface
*ps
;
573 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
575 ps
= CALLOC_STRUCT(pipe_surface
);
577 pipe_reference_init(&ps
->reference
, 1);
578 pipe_resource_reference(&ps
->texture
, pt
);
580 ps
->format
= surf_tmpl
->format
;
581 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
582 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
584 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
585 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
586 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
593 llvmpipe_surface_destroy(struct pipe_context
*pipe
,
594 struct pipe_surface
*surf
)
596 /* Effectively do the texture_update work here - if texture images
597 * needed post-processing to put them into hardware layout, this is
598 * where it would happen. For llvmpipe, nothing to do.
600 assert(surf
->texture
);
601 pipe_resource_reference(&surf
->texture
, NULL
);
607 llvmpipe_transfer_map( struct pipe_context
*pipe
,
608 struct pipe_resource
*resource
,
611 const struct pipe_box
*box
,
612 struct pipe_transfer
**transfer
)
614 struct llvmpipe_context
*llvmpipe
= llvmpipe_context(pipe
);
615 struct llvmpipe_screen
*screen
= llvmpipe_screen(pipe
->screen
);
616 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
617 struct llvmpipe_transfer
*lpt
;
618 struct pipe_transfer
*pt
;
620 enum pipe_format format
;
621 enum lp_texture_usage tex_usage
;
625 assert(level
<= resource
->last_level
);
628 * Transfers, like other pipe operations, must happen in order, so flush the
629 * context if necessary.
631 if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
632 boolean read_only
= !(usage
& PIPE_TRANSFER_WRITE
);
633 boolean do_not_block
= !!(usage
& PIPE_TRANSFER_DONTBLOCK
);
634 if (!llvmpipe_flush_resource(pipe
, resource
,
637 TRUE
, /* cpu_access */
641 * It would have blocked, but state tracker requested no to.
643 assert(do_not_block
);
648 /* Check if we're mapping the current constant buffer */
649 if ((usage
& PIPE_TRANSFER_WRITE
) &&
650 resource
== llvmpipe
->constants
[PIPE_SHADER_FRAGMENT
][0].buffer
) {
651 /* constants may have changed */
652 llvmpipe
->dirty
|= LP_NEW_CONSTANTS
;
655 lpt
= CALLOC_STRUCT(llvmpipe_transfer
);
659 pipe_resource_reference(&pt
->resource
, resource
);
662 pt
->stride
= lpr
->row_stride
[level
];
663 pt
->layer_stride
= lpr
->img_stride
[level
];
667 assert(level
< LP_MAX_TEXTURE_LEVELS
);
670 printf("tex_transfer_map(%d, %d %d x %d of %d x %d, usage %d )\n",
671 transfer->x, transfer->y, transfer->width, transfer->height,
672 transfer->texture->width0,
673 transfer->texture->height0,
677 if (usage
== PIPE_TRANSFER_READ
) {
678 tex_usage
= LP_TEX_USAGE_READ
;
682 tex_usage
= LP_TEX_USAGE_READ_WRITE
;
687 printf("transfer map tex %u mode %s\n", lpr
->id
, mode
);
690 format
= lpr
->base
.format
;
692 map
= llvmpipe_resource_map(resource
,
695 tex_usage
, LP_TEX_LAYOUT_LINEAR
);
698 /* May want to do different things here depending on read/write nature
701 if (usage
& PIPE_TRANSFER_WRITE
) {
702 /* Do something to notify sharing contexts of a texture change.
708 box
->y
/ util_format_get_blockheight(format
) * pt
->stride
+
709 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
716 llvmpipe_transfer_unmap(struct pipe_context
*pipe
,
717 struct pipe_transfer
*transfer
)
719 assert(transfer
->resource
);
721 llvmpipe_resource_unmap(transfer
->resource
,
725 /* Effectively do the texture_update work here - if texture images
726 * needed post-processing to put them into hardware layout, this is
727 * where it would happen. For llvmpipe, nothing to do.
729 assert (transfer
->resource
);
730 pipe_resource_reference(&transfer
->resource
, NULL
);
735 llvmpipe_is_resource_referenced( struct pipe_context
*pipe
,
736 struct pipe_resource
*presource
,
739 struct llvmpipe_context
*llvmpipe
= llvmpipe_context( pipe
);
741 if (presource
->target
== PIPE_BUFFER
)
742 return LP_UNREFERENCED
;
744 return lp_setup_is_resource_referenced(llvmpipe
->setup
, presource
);
749 * Returns the largest possible alignment for a format in llvmpipe
752 llvmpipe_get_format_alignment( enum pipe_format format
)
754 const struct util_format_description
*desc
= util_format_description(format
);
759 for (i
= 0; i
< desc
->nr_channels
; ++i
) {
760 size
+= desc
->channel
[i
].size
;
765 if (!util_is_power_of_two(bytes
)) {
766 bytes
/= desc
->nr_channels
;
769 if (bytes
% 2 || bytes
< 1) {
778 * Create buffer which wraps user-space data.
780 struct pipe_resource
*
781 llvmpipe_user_buffer_create(struct pipe_screen
*screen
,
786 struct llvmpipe_resource
*buffer
;
788 buffer
= CALLOC_STRUCT(llvmpipe_resource
);
792 pipe_reference_init(&buffer
->base
.reference
, 1);
793 buffer
->base
.screen
= screen
;
794 buffer
->base
.format
= PIPE_FORMAT_R8_UNORM
; /* ?? */
795 buffer
->base
.bind
= bind_flags
;
796 buffer
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
797 buffer
->base
.flags
= 0;
798 buffer
->base
.width0
= bytes
;
799 buffer
->base
.height0
= 1;
800 buffer
->base
.depth0
= 1;
801 buffer
->base
.array_size
= 1;
802 buffer
->userBuffer
= TRUE
;
805 return &buffer
->base
;
810 * Compute size (in bytes) need to store a texture image / mipmap level,
811 * for just one cube face, one array layer or one 3D texture slice
814 tex_image_face_size(const struct llvmpipe_resource
*lpr
, unsigned level
,
815 enum lp_texture_layout layout
)
817 const unsigned width
= u_minify(lpr
->base
.width0
, level
);
818 const unsigned height
= u_minify(lpr
->base
.height0
, level
);
820 assert(layout
== LP_TEX_LAYOUT_TILED
||
821 layout
== LP_TEX_LAYOUT_LINEAR
);
823 if (layout
== LP_TEX_LAYOUT_TILED
) {
824 /* for tiled layout, force a 32bpp format */
825 const enum pipe_format format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
826 const unsigned block_size
= util_format_get_blocksize(format
);
827 const unsigned nblocksy
=
828 util_format_get_nblocksy(format
, align(height
, TILE_SIZE
));
829 const unsigned nblocksx
=
830 util_format_get_nblocksx(format
, align(width
, TILE_SIZE
));
831 const unsigned buffer_size
= block_size
* nblocksy
* nblocksx
;
835 /* we already computed this */
836 return lpr
->img_stride
[level
];
842 * Compute size (in bytes) need to store a texture image / mipmap level,
843 * including all cube faces or 3D image slices
846 tex_image_size(const struct llvmpipe_resource
*lpr
, unsigned level
,
847 enum lp_texture_layout layout
)
849 const unsigned buf_size
= tex_image_face_size(lpr
, level
, layout
);
850 return buf_size
* lpr
->num_slices_faces
[level
];
855 * This function encapsulates some complicated logic for determining
856 * how to convert a tile of image data from linear layout to tiled
857 * layout, or vice versa.
858 * \param cur_layout the current tile layout
859 * \param target_layout the desired tile layout
860 * \param usage how the tile will be accessed (R/W vs. read-only, etc)
861 * \param new_layout_return returns the new layout mode
862 * \param convert_return returns TRUE if image conversion is needed
865 layout_logic(enum lp_texture_layout cur_layout
,
866 enum lp_texture_layout target_layout
,
867 enum lp_texture_usage usage
,
868 enum lp_texture_layout
*new_layout_return
,
871 enum lp_texture_layout other_layout
, new_layout
;
875 new_layout
= 99; /* debug check */
877 if (target_layout
== LP_TEX_LAYOUT_LINEAR
) {
878 other_layout
= LP_TEX_LAYOUT_TILED
;
881 assert(target_layout
== LP_TEX_LAYOUT_TILED
);
882 other_layout
= LP_TEX_LAYOUT_LINEAR
;
885 new_layout
= target_layout
; /* may get changed below */
887 if (cur_layout
== LP_TEX_LAYOUT_BOTH
) {
888 if (usage
== LP_TEX_USAGE_READ
) {
889 new_layout
= LP_TEX_LAYOUT_BOTH
;
892 else if (cur_layout
== other_layout
) {
893 if (usage
!= LP_TEX_USAGE_WRITE_ALL
) {
894 /* need to convert tiled data to linear or vice versa */
897 if (usage
== LP_TEX_USAGE_READ
)
898 new_layout
= LP_TEX_LAYOUT_BOTH
;
902 assert(cur_layout
== LP_TEX_LAYOUT_NONE
||
903 cur_layout
== target_layout
);
906 assert(new_layout
== LP_TEX_LAYOUT_BOTH
||
907 new_layout
== target_layout
);
909 *new_layout_return
= new_layout
;
914 * Return pointer to a 2D texture image/face/slice.
915 * No tiled/linear conversion is done.
918 llvmpipe_get_texture_image_address(struct llvmpipe_resource
*lpr
,
919 unsigned face_slice
, unsigned level
,
920 enum lp_texture_layout layout
)
922 struct llvmpipe_texture_image
*img
;
925 if (layout
== LP_TEX_LAYOUT_LINEAR
) {
926 img
= &lpr
->linear_img
;
927 offset
= lpr
->linear_mip_offsets
[level
];
930 assert (layout
== LP_TEX_LAYOUT_TILED
);
931 img
= &lpr
->tiled_img
;
932 offset
= lpr
->tiled_mip_offsets
[level
];
936 offset
+= face_slice
* tex_image_face_size(lpr
, level
, layout
);
938 return (ubyte
*) img
->data
+ offset
;
942 static INLINE
enum lp_texture_layout
943 llvmpipe_get_texture_tile_layout(const struct llvmpipe_resource
*lpr
,
944 unsigned face_slice
, unsigned level
,
945 unsigned x
, unsigned y
)
948 assert(llvmpipe_resource_is_texture(&lpr
->base
));
949 assert(x
< lpr
->tiles_per_row
[level
]);
950 i
= face_slice
* lpr
->tiles_per_image
[level
]
951 + y
* lpr
->tiles_per_row
[level
] + x
;
952 return lpr
->layout
[level
][i
];
957 llvmpipe_set_texture_tile_layout(struct llvmpipe_resource
*lpr
,
958 unsigned face_slice
, unsigned level
,
959 unsigned x
, unsigned y
,
960 enum lp_texture_layout layout
)
963 assert(llvmpipe_resource_is_texture(&lpr
->base
));
964 assert(x
< lpr
->tiles_per_row
[level
]);
965 i
= face_slice
* lpr
->tiles_per_image
[level
]
966 + y
* lpr
->tiles_per_row
[level
] + x
;
967 lpr
->layout
[level
][i
] = layout
;
972 * Set the layout mode for all tiles in a particular image.
975 llvmpipe_set_texture_image_layout(struct llvmpipe_resource
*lpr
,
976 unsigned face_slice
, unsigned level
,
977 unsigned width_t
, unsigned height_t
,
978 enum lp_texture_layout layout
)
980 const unsigned start
= face_slice
* lpr
->tiles_per_image
[level
];
983 for (i
= 0; i
< width_t
* height_t
; i
++) {
984 lpr
->layout
[level
][start
+ i
] = layout
;
990 * Allocate storage for a linear or tile texture image (all cube
991 * faces and all 3D slices, all levels).
994 alloc_image_data(struct llvmpipe_resource
*lpr
,
995 enum lp_texture_layout layout
)
997 uint alignment
= MAX2(16, util_cpu_caps
.cacheline
);
1002 assert(lpr
->base
.last_level
== 0);
1004 if (layout
== LP_TEX_LAYOUT_TILED
) {
1005 /* tiled data is stored in regular memory */
1006 for (level
= 0; level
<= lpr
->base
.last_level
; level
++) {
1007 uint buffer_size
= tex_image_size(lpr
, level
, layout
);
1008 lpr
->tiled_mip_offsets
[level
] = offset
;
1009 offset
+= align(buffer_size
, alignment
);
1011 lpr
->tiled_img
.data
= align_malloc(offset
, alignment
);
1012 if (lpr
->tiled_img
.data
) {
1013 memset(lpr
->tiled_img
.data
, 0, offset
);
1017 assert(layout
== LP_TEX_LAYOUT_LINEAR
);
1019 /* we get the linear memory from the winsys, and it has
1020 * already been zeroed
1022 struct llvmpipe_screen
*screen
= llvmpipe_screen(lpr
->base
.screen
);
1023 struct sw_winsys
*winsys
= screen
->winsys
;
1025 lpr
->linear_img
.data
=
1026 winsys
->displaytarget_map(winsys
, lpr
->dt
,
1027 PIPE_TRANSFER_READ_WRITE
);
1030 /* not a display target - allocate regular memory */
1032 * Offset calculation for start of a specific mip/layer is always
1033 * offset = lpr->linear_mip_offsets[level] + lpr->img_stride[level] * layer
1035 for (level
= 0; level
<= lpr
->base
.last_level
; level
++) {
1036 uint buffer_size
= tex_image_size(lpr
, level
, LP_TEX_LAYOUT_LINEAR
);
1037 lpr
->linear_mip_offsets
[level
] = offset
;
1038 offset
+= align(buffer_size
, alignment
);
1040 lpr
->linear_img
.data
= align_malloc(offset
, alignment
);
1041 if (lpr
->linear_img
.data
) {
1042 memset(lpr
->linear_img
.data
, 0, offset
);
1051 * Return pointer to texture image data (either linear or tiled layout)
1052 * for a particular cube face or 3D texture slice.
1054 * \param face_slice the cube face or 3D slice of interest
1055 * \param usage one of LP_TEX_USAGE_READ/WRITE_ALL/READ_WRITE
1056 * \param layout either LP_TEX_LAYOUT_LINEAR or _TILED or _NONE
1059 llvmpipe_get_texture_image(struct llvmpipe_resource
*lpr
,
1060 unsigned face_slice
, unsigned level
,
1061 enum lp_texture_usage usage
,
1062 enum lp_texture_layout layout
)
1065 * 'target' refers to the image which we're retrieving (either in
1066 * tiled or linear layout).
1067 * 'other' refers to the same image but in the other layout. (it may
1070 struct llvmpipe_texture_image
*target_img
;
1071 struct llvmpipe_texture_image
*other_img
;
1074 const unsigned width
= u_minify(lpr
->base
.width0
, level
);
1075 const unsigned height
= u_minify(lpr
->base
.height0
, level
);
1076 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
1077 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
1078 unsigned target_offset
, other_offset
;
1079 unsigned *target_off_ptr
, *other_off_ptr
;
1080 enum lp_texture_layout other_layout
;
1081 boolean only_allocate
;
1083 assert(layout
== LP_TEX_LAYOUT_NONE
||
1084 layout
== LP_TEX_LAYOUT_TILED
||
1085 layout
== LP_TEX_LAYOUT_LINEAR
);
1087 assert(usage
== LP_TEX_USAGE_READ
||
1088 usage
== LP_TEX_USAGE_READ_WRITE
||
1089 usage
== LP_TEX_USAGE_WRITE_ALL
);
1091 /* check for the special case of layout == LP_TEX_LAYOUT_NONE */
1092 if (layout
== LP_TEX_LAYOUT_NONE
) {
1093 only_allocate
= TRUE
;
1094 layout
= LP_TEX_LAYOUT_TILED
;
1097 only_allocate
= FALSE
;
1101 assert(lpr
->linear_img
.data
);
1104 /* which is target? which is other? */
1105 if (layout
== LP_TEX_LAYOUT_LINEAR
) {
1106 target_img
= &lpr
->linear_img
;
1107 target_off_ptr
= lpr
->linear_mip_offsets
;
1108 other_img
= &lpr
->tiled_img
;
1109 other_off_ptr
= lpr
->tiled_mip_offsets
;
1110 other_layout
= LP_TEX_LAYOUT_TILED
;
1113 target_img
= &lpr
->tiled_img
;
1114 target_off_ptr
= lpr
->tiled_mip_offsets
;
1115 other_img
= &lpr
->linear_img
;
1116 other_off_ptr
= lpr
->linear_mip_offsets
;
1117 other_layout
= LP_TEX_LAYOUT_LINEAR
;
1120 target_data
= target_img
->data
;
1121 other_data
= other_img
->data
;
1124 /* allocate memory for the target image now */
1125 alloc_image_data(lpr
, layout
);
1126 target_data
= target_img
->data
;
1129 target_offset
= target_off_ptr
[level
];
1130 other_offset
= other_off_ptr
[level
];
1132 if (face_slice
> 0) {
1133 target_offset
+= face_slice
* tex_image_face_size(lpr
, level
, layout
);
1134 other_offset
+= face_slice
* tex_image_face_size(lpr
, level
, other_layout
);
1138 target_data
= (uint8_t *) target_data
+ target_offset
;
1141 other_data
= (uint8_t *) other_data
+ other_offset
;
1144 if (only_allocate
) {
1145 /* Just allocating tiled memory. Don't initialize it from the
1146 * linear data if it exists.
1152 /* may need to convert other data to the requested layout */
1153 enum lp_texture_layout new_layout
;
1156 /* loop over all image tiles, doing layout conversion where needed */
1157 for (y
= 0; y
< height_t
; y
++) {
1158 for (x
= 0; x
< width_t
; x
++) {
1159 enum lp_texture_layout cur_layout
=
1160 llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, x
, y
);
1163 layout_logic(cur_layout
, layout
, usage
, &new_layout
, &convert
);
1165 if (convert
&& other_data
&& target_data
) {
1166 if (layout
== LP_TEX_LAYOUT_TILED
) {
1167 lp_linear_to_tiled(other_data
, target_data
,
1168 x
* TILE_SIZE
, y
* TILE_SIZE
,
1169 TILE_SIZE
, TILE_SIZE
,
1171 lpr
->row_stride
[level
],
1172 lpr
->tiles_per_row
[level
]);
1175 assert(layout
== LP_TEX_LAYOUT_LINEAR
);
1176 lp_tiled_to_linear(other_data
, target_data
,
1177 x
* TILE_SIZE
, y
* TILE_SIZE
,
1178 TILE_SIZE
, TILE_SIZE
,
1180 lpr
->row_stride
[level
],
1181 lpr
->tiles_per_row
[level
]);
1185 if (new_layout
!= cur_layout
)
1186 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, x
, y
,
1193 llvmpipe_set_texture_image_layout(lpr
, face_slice
, level
,
1194 width_t
, height_t
, layout
);
1202 * Return pointer to start of a texture image (1D, 2D, 3D, CUBE).
1203 * All cube faces and 3D slices will be converted to the requested
1205 * This is typically used when we're about to sample from a texture.
1208 llvmpipe_get_texture_image_all(struct llvmpipe_resource
*lpr
,
1210 enum lp_texture_usage usage
,
1211 enum lp_texture_layout layout
)
1213 const int slices
= lpr
->num_slices_faces
[level
];
1219 for (slice
= slices
- 1; slice
>= 0; slice
--) {
1220 map
= llvmpipe_get_texture_image(lpr
, slice
, level
, usage
, layout
);
1228 * Get pointer to a linear image (not the tile!) where the tile at (x,y)
1229 * is known to be in linear layout.
1230 * Conversion from tiled to linear will be done if necessary.
1231 * \return pointer to start of image/face (not the tile)
1234 llvmpipe_get_texture_tile_linear(struct llvmpipe_resource
*lpr
,
1235 unsigned face_slice
, unsigned level
,
1236 enum lp_texture_usage usage
,
1237 unsigned x
, unsigned y
)
1239 struct llvmpipe_texture_image
*linear_img
= &lpr
->linear_img
;
1240 enum lp_texture_layout cur_layout
, new_layout
;
1241 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1243 uint8_t *tiled_image
, *linear_image
;
1245 assert(llvmpipe_resource_is_texture(&lpr
->base
));
1246 assert(x
% TILE_SIZE
== 0);
1247 assert(y
% TILE_SIZE
== 0);
1249 if (!linear_img
->data
) {
1250 /* allocate memory for the linear image now */
1251 alloc_image_data(lpr
, LP_TEX_LAYOUT_LINEAR
);
1254 /* compute address of the slice/face of the image that contains the tile */
1255 tiled_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1256 LP_TEX_LAYOUT_TILED
);
1257 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1258 LP_TEX_LAYOUT_LINEAR
);
1260 /* get current tile layout and determine if data conversion is needed */
1261 cur_layout
= llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
);
1263 layout_logic(cur_layout
, LP_TEX_LAYOUT_LINEAR
, usage
,
1264 &new_layout
, &convert
);
1266 if (convert
&& tiled_image
&& linear_image
) {
1267 lp_tiled_to_linear(tiled_image
, linear_image
,
1268 x
, y
, TILE_SIZE
, TILE_SIZE
, lpr
->base
.format
,
1269 lpr
->row_stride
[level
],
1270 lpr
->tiles_per_row
[level
]);
1273 if (new_layout
!= cur_layout
)
1274 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
, new_layout
);
1276 return linear_image
;
1281 * Get pointer to tiled data for rendering.
1282 * \return pointer to the tiled data at the given tile position
1285 llvmpipe_get_texture_tile(struct llvmpipe_resource
*lpr
,
1286 unsigned face_slice
, unsigned level
,
1287 enum lp_texture_usage usage
,
1288 unsigned x
, unsigned y
)
1290 struct llvmpipe_texture_image
*tiled_img
= &lpr
->tiled_img
;
1291 enum lp_texture_layout cur_layout
, new_layout
;
1292 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1294 uint8_t *tiled_image
, *linear_image
;
1295 unsigned tile_offset
;
1297 assert(x
% TILE_SIZE
== 0);
1298 assert(y
% TILE_SIZE
== 0);
1300 if (!tiled_img
->data
) {
1301 /* allocate memory for the tiled image now */
1302 alloc_image_data(lpr
, LP_TEX_LAYOUT_TILED
);
1305 /* compute address of the slice/face of the image that contains the tile */
1306 tiled_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1307 LP_TEX_LAYOUT_TILED
);
1308 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1309 LP_TEX_LAYOUT_LINEAR
);
1311 /* get current tile layout and see if we need to convert the data */
1312 cur_layout
= llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
);
1314 layout_logic(cur_layout
, LP_TEX_LAYOUT_TILED
, usage
, &new_layout
, &convert
);
1315 if (convert
&& linear_image
&& tiled_image
) {
1316 lp_linear_to_tiled(linear_image
, tiled_image
,
1317 x
, y
, TILE_SIZE
, TILE_SIZE
, lpr
->base
.format
,
1318 lpr
->row_stride
[level
],
1319 lpr
->tiles_per_row
[level
]);
1325 if (new_layout
!= cur_layout
)
1326 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
, new_layout
);
1328 /* compute, return address of the 64x64 tile */
1329 tile_offset
= (ty
* lpr
->tiles_per_row
[level
] + tx
)
1330 * TILE_SIZE
* TILE_SIZE
* 4;
1332 return (ubyte
*) tiled_image
+ tile_offset
;
1337 * Return size of resource in bytes
1340 llvmpipe_resource_size(const struct pipe_resource
*resource
)
1342 const struct llvmpipe_resource
*lpr
= llvmpipe_resource_const(resource
);
1343 unsigned lvl
, size
= 0;
1345 for (lvl
= 0; lvl
<= lpr
->base
.last_level
; lvl
++) {
1346 if (lpr
->linear_img
.data
)
1347 size
+= tex_image_size(lpr
, lvl
, LP_TEX_LAYOUT_LINEAR
);
1349 if (lpr
->tiled_img
.data
)
1350 size
+= tex_image_size(lpr
, lvl
, LP_TEX_LAYOUT_TILED
);
1359 llvmpipe_print_resources(void)
1361 struct llvmpipe_resource
*lpr
;
1362 unsigned n
= 0, total
= 0;
1364 debug_printf("LLVMPIPE: current resources:\n");
1365 foreach(lpr
, &resource_list
) {
1366 unsigned size
= llvmpipe_resource_size(&lpr
->base
);
1367 debug_printf("resource %u at %p, size %ux%ux%u: %u bytes, refcount %u\n",
1368 lpr
->id
, (void *) lpr
,
1369 lpr
->base
.width0
, lpr
->base
.height0
, lpr
->base
.depth0
,
1370 size
, lpr
->base
.reference
.count
);
1374 debug_printf("LLVMPIPE: total size of %u resources: %u\n", n
, total
);
1380 llvmpipe_init_screen_resource_funcs(struct pipe_screen
*screen
)
1383 /* init linked list for tracking resources */
1385 static boolean first_call
= TRUE
;
1387 memset(&resource_list
, 0, sizeof(resource_list
));
1388 make_empty_list(&resource_list
);
1394 screen
->resource_create
= llvmpipe_resource_create
;
1395 screen
->resource_destroy
= llvmpipe_resource_destroy
;
1396 screen
->resource_from_handle
= llvmpipe_resource_from_handle
;
1397 screen
->resource_get_handle
= llvmpipe_resource_get_handle
;
1398 screen
->can_create_resource
= llvmpipe_can_create_resource
;
1403 llvmpipe_init_context_resource_funcs(struct pipe_context
*pipe
)
1405 pipe
->transfer_map
= llvmpipe_transfer_map
;
1406 pipe
->transfer_unmap
= llvmpipe_transfer_unmap
;
1408 pipe
->transfer_flush_region
= u_default_transfer_flush_region
;
1409 pipe
->transfer_inline_write
= u_default_transfer_inline_write
;
1411 pipe
->create_surface
= llvmpipe_create_surface
;
1412 pipe
->surface_destroy
= llvmpipe_surface_destroy
;