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
) {
70 case PIPE_TEXTURE_1D_ARRAY
:
72 case PIPE_TEXTURE_2D_ARRAY
:
73 case PIPE_TEXTURE_RECT
:
75 case PIPE_TEXTURE_CUBE
:
86 * Allocate storage for llvmpipe_texture::layout array.
87 * The number of elements is width_in_tiles * height_in_tiles.
89 static enum lp_texture_layout
*
90 alloc_layout_array(unsigned num_slices
, unsigned width
, unsigned height
)
92 const unsigned tx
= align(width
, TILE_SIZE
) / TILE_SIZE
;
93 const unsigned ty
= align(height
, TILE_SIZE
) / TILE_SIZE
;
95 assert(num_slices
* tx
* ty
> 0);
96 assert(LP_TEX_LAYOUT_NONE
== 0); /* calloc'ing LP_TEX_LAYOUT_NONE here */
98 return (enum lp_texture_layout
*)
99 CALLOC(num_slices
* tx
* ty
, sizeof(enum lp_texture_layout
));
105 * Conventional allocation path for non-display textures:
106 * Just compute row strides here. Storage is allocated on demand later.
109 llvmpipe_texture_layout(struct llvmpipe_screen
*screen
,
110 struct llvmpipe_resource
*lpr
,
113 struct pipe_resource
*pt
= &lpr
->base
;
115 unsigned width
= pt
->width0
;
116 unsigned height
= pt
->height0
;
117 unsigned depth
= pt
->depth0
;
118 uint64_t total_size
= 0;
119 unsigned layers
= pt
->array_size
;
121 assert(LP_MAX_TEXTURE_2D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
122 assert(LP_MAX_TEXTURE_3D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
124 for (level
= 0; level
<= pt
->last_level
; level
++) {
126 /* Row stride and image stride (for linear layout) */
128 unsigned alignment
, nblocksx
, nblocksy
, block_size
;
130 /* For non-compressed formats we need to align the texture size
131 * to the tile size to facilitate render-to-texture.
132 * XXX this blows up 1d/1d array textures by unreasonable
133 * amount (factor 64), probably should do something about it.
135 if (util_format_is_compressed(pt
->format
))
138 alignment
= TILE_SIZE
;
140 nblocksx
= util_format_get_nblocksx(pt
->format
,
141 align(width
, alignment
));
142 nblocksy
= util_format_get_nblocksy(pt
->format
,
143 align(height
, alignment
));
144 block_size
= util_format_get_blocksize(pt
->format
);
146 lpr
->row_stride
[level
] = align(nblocksx
* block_size
, 16);
148 /* if row_stride * height > LP_MAX_TEXTURE_SIZE */
149 if (lpr
->row_stride
[level
] > LP_MAX_TEXTURE_SIZE
/ nblocksy
) {
150 /* image too large */
154 lpr
->img_stride
[level
] = lpr
->row_stride
[level
] * nblocksy
;
157 /* Size of the image in tiles (for tiled layout) */
159 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
160 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
161 lpr
->tiles_per_row
[level
] = width_t
;
162 lpr
->tiles_per_image
[level
] = width_t
* height_t
;
165 /* Number of 3D image slices, cube faces or texture array layers */
169 if (lpr
->base
.target
== PIPE_TEXTURE_CUBE
)
171 else if (lpr
->base
.target
== PIPE_TEXTURE_3D
)
173 else if (lpr
->base
.target
== PIPE_TEXTURE_1D_ARRAY
||
174 lpr
->base
.target
== PIPE_TEXTURE_2D_ARRAY
)
179 lpr
->num_slices_faces
[level
] = num_slices
;
182 lpr
->layout
[level
] = alloc_layout_array(num_slices
, width
, height
);
183 if (!lpr
->layout
[level
]) {
189 /* if img_stride * num_slices_faces > LP_MAX_TEXTURE_SIZE */
190 if (lpr
->img_stride
[level
] >
191 LP_MAX_TEXTURE_SIZE
/ lpr
->num_slices_faces
[level
]) {
192 /* volume too large */
196 total_size
+= (uint64_t) lpr
->num_slices_faces
[level
]
197 * (uint64_t) lpr
->img_stride
[level
];
198 if (total_size
> LP_MAX_TEXTURE_SIZE
) {
202 /* Compute size of next mipmap level */
203 width
= u_minify(width
, 1);
204 height
= u_minify(height
, 1);
205 depth
= u_minify(depth
, 1);
211 for (level
= 0; level
<= pt
->last_level
; level
++) {
212 FREE(lpr
->layout
[level
]);
220 * Check the size of the texture specified by 'res'.
221 * \return TRUE if OK, FALSE if too large.
224 llvmpipe_can_create_resource(struct pipe_screen
*screen
,
225 const struct pipe_resource
*res
)
227 struct llvmpipe_resource lpr
;
228 memset(&lpr
, 0, sizeof(lpr
));
230 return llvmpipe_texture_layout(llvmpipe_screen(screen
), &lpr
, FALSE
);
235 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
236 struct llvmpipe_resource
*lpr
)
238 struct sw_winsys
*winsys
= screen
->winsys
;
240 /* Round up the surface size to a multiple of the tile size to
241 * avoid tile clipping.
243 const unsigned width
= MAX2(1, align(lpr
->base
.width0
, TILE_SIZE
));
244 const unsigned height
= MAX2(1, align(lpr
->base
.height0
, TILE_SIZE
));
245 const unsigned width_t
= width
/ TILE_SIZE
;
246 const unsigned height_t
= height
/ TILE_SIZE
;
248 lpr
->tiles_per_row
[0] = width_t
;
249 lpr
->tiles_per_image
[0] = width_t
* height_t
;
250 lpr
->num_slices_faces
[0] = 1;
251 lpr
->img_stride
[0] = 0;
253 lpr
->layout
[0] = alloc_layout_array(1, width
, height
);
254 if (!lpr
->layout
[0]) {
258 lpr
->dt
= winsys
->displaytarget_create(winsys
,
263 &lpr
->row_stride
[0] );
269 void *map
= winsys
->displaytarget_map(winsys
, lpr
->dt
,
270 PIPE_TRANSFER_WRITE
);
273 memset(map
, 0, height
* lpr
->row_stride
[0]);
275 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
282 static struct pipe_resource
*
283 llvmpipe_resource_create(struct pipe_screen
*_screen
,
284 const struct pipe_resource
*templat
)
286 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
287 struct llvmpipe_resource
*lpr
= CALLOC_STRUCT(llvmpipe_resource
);
291 lpr
->base
= *templat
;
292 pipe_reference_init(&lpr
->base
.reference
, 1);
293 lpr
->base
.screen
= &screen
->base
;
295 /* assert(lpr->base.bind); */
297 if (resource_is_texture(&lpr
->base
)) {
298 if (lpr
->base
.bind
& PIPE_BIND_DISPLAY_TARGET
) {
299 /* displayable surface */
300 if (!llvmpipe_displaytarget_layout(screen
, lpr
))
302 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
306 if (!llvmpipe_texture_layout(screen
, lpr
, TRUE
))
308 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
310 assert(lpr
->layout
[0]);
313 /* other data (vertex buffer, const buffer, etc) */
314 const uint bytes
= templat
->width0
;
315 assert(util_format_get_blocksize(templat
->format
) == 1);
316 assert(templat
->height0
== 1);
317 assert(templat
->depth0
== 1);
318 assert(templat
->last_level
== 0);
319 lpr
->data
= align_malloc(bytes
, 16);
322 memset(lpr
->data
, 0, bytes
);
325 lpr
->id
= id_counter
++;
328 insert_at_tail(&resource_list
, lpr
);
340 llvmpipe_resource_destroy(struct pipe_screen
*pscreen
,
341 struct pipe_resource
*pt
)
343 struct llvmpipe_screen
*screen
= llvmpipe_screen(pscreen
);
344 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
348 struct sw_winsys
*winsys
= screen
->winsys
;
349 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
351 if (lpr
->tiled_img
.data
) {
352 align_free(lpr
->tiled_img
.data
);
353 lpr
->tiled_img
.data
= NULL
;
356 FREE(lpr
->layout
[0]);
358 else if (resource_is_texture(pt
)) {
359 /* regular texture */
362 /* free linear image data */
363 if (lpr
->linear_img
.data
) {
364 align_free(lpr
->linear_img
.data
);
365 lpr
->linear_img
.data
= NULL
;
368 /* free tiled image data */
369 if (lpr
->tiled_img
.data
) {
370 align_free(lpr
->tiled_img
.data
);
371 lpr
->tiled_img
.data
= NULL
;
374 /* free layout flag arrays */
375 for (level
= 0; level
< Elements(lpr
->layout
); level
++) {
376 FREE(lpr
->layout
[level
]);
377 lpr
->layout
[level
] = NULL
;
380 else if (!lpr
->userBuffer
) {
382 align_free(lpr
->data
);
387 remove_from_list(lpr
);
395 * Map a resource for read/write.
398 llvmpipe_resource_map(struct pipe_resource
*resource
,
401 enum lp_texture_usage tex_usage
,
402 enum lp_texture_layout layout
)
404 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
407 assert(level
< LP_MAX_TEXTURE_LEVELS
);
408 assert(layer
< (u_minify(resource
->depth0
, level
) + resource
->array_size
- 1));
410 assert(tex_usage
== LP_TEX_USAGE_READ
||
411 tex_usage
== LP_TEX_USAGE_READ_WRITE
||
412 tex_usage
== LP_TEX_USAGE_WRITE_ALL
);
414 assert(layout
== LP_TEX_LAYOUT_NONE
||
415 layout
== LP_TEX_LAYOUT_TILED
||
416 layout
== LP_TEX_LAYOUT_LINEAR
);
420 struct llvmpipe_screen
*screen
= llvmpipe_screen(resource
->screen
);
421 struct sw_winsys
*winsys
= screen
->winsys
;
425 if (tex_usage
== LP_TEX_USAGE_READ
) {
426 dt_usage
= PIPE_TRANSFER_READ
;
429 dt_usage
= PIPE_TRANSFER_READ_WRITE
;
435 /* FIXME: keep map count? */
436 map
= winsys
->displaytarget_map(winsys
, lpr
->dt
, dt_usage
);
438 /* install this linear image in texture data structure */
439 lpr
->linear_img
.data
= map
;
441 /* make sure tiled data gets converted to linear data */
442 map2
= llvmpipe_get_texture_image(lpr
, 0, 0, tex_usage
, layout
);
443 if (layout
== LP_TEX_LAYOUT_LINEAR
)
448 else if (resource_is_texture(resource
)) {
450 map
= llvmpipe_get_texture_image(lpr
, layer
, level
,
464 llvmpipe_resource_unmap(struct pipe_resource
*resource
,
468 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
472 struct llvmpipe_screen
*lp_screen
= llvmpipe_screen(resource
->screen
);
473 struct sw_winsys
*winsys
= lp_screen
->winsys
;
478 /* make sure linear image is up to date */
479 (void) llvmpipe_get_texture_image(lpr
, layer
, level
,
481 LP_TEX_LAYOUT_LINEAR
);
483 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
489 llvmpipe_resource_data(struct pipe_resource
*resource
)
491 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
493 assert(!resource_is_texture(resource
));
499 static struct pipe_resource
*
500 llvmpipe_resource_from_handle(struct pipe_screen
*screen
,
501 const struct pipe_resource
*template,
502 struct winsys_handle
*whandle
)
504 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
505 struct llvmpipe_resource
*lpr
;
506 unsigned width
, height
, width_t
, height_t
;
508 /* XXX Seems like from_handled depth textures doesn't work that well */
510 lpr
= CALLOC_STRUCT(llvmpipe_resource
);
515 lpr
->base
= *template;
516 pipe_reference_init(&lpr
->base
.reference
, 1);
517 lpr
->base
.screen
= screen
;
519 width
= align(lpr
->base
.width0
, TILE_SIZE
);
520 height
= align(lpr
->base
.height0
, TILE_SIZE
);
521 width_t
= width
/ TILE_SIZE
;
522 height_t
= height
/ TILE_SIZE
;
525 * Looks like unaligned displaytargets work just fine,
526 * at least sampler/render ones.
529 assert(lpr
->base
.width0
== width
);
530 assert(lpr
->base
.height0
== height
);
533 lpr
->tiles_per_row
[0] = width_t
;
534 lpr
->tiles_per_image
[0] = width_t
* height_t
;
535 lpr
->num_slices_faces
[0] = 1;
536 lpr
->img_stride
[0] = 0;
538 lpr
->dt
= winsys
->displaytarget_from_handle(winsys
,
541 &lpr
->row_stride
[0]);
546 lpr
->layout
[0] = alloc_layout_array(1, lpr
->base
.width0
, lpr
->base
.height0
);
547 if (!lpr
->layout
[0]) {
551 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
553 lpr
->id
= id_counter
++;
556 insert_at_tail(&resource_list
, lpr
);
562 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
571 llvmpipe_resource_get_handle(struct pipe_screen
*screen
,
572 struct pipe_resource
*pt
,
573 struct winsys_handle
*whandle
)
575 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
576 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
582 return winsys
->displaytarget_get_handle(winsys
, lpr
->dt
, whandle
);
586 static struct pipe_surface
*
587 llvmpipe_create_surface(struct pipe_context
*pipe
,
588 struct pipe_resource
*pt
,
589 const struct pipe_surface
*surf_tmpl
)
591 struct pipe_surface
*ps
;
593 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
595 ps
= CALLOC_STRUCT(pipe_surface
);
597 pipe_reference_init(&ps
->reference
, 1);
598 pipe_resource_reference(&ps
->texture
, pt
);
600 ps
->format
= surf_tmpl
->format
;
601 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
602 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
604 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
605 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
606 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
613 llvmpipe_surface_destroy(struct pipe_context
*pipe
,
614 struct pipe_surface
*surf
)
616 /* Effectively do the texture_update work here - if texture images
617 * needed post-processing to put them into hardware layout, this is
618 * where it would happen. For llvmpipe, nothing to do.
620 assert(surf
->texture
);
621 pipe_resource_reference(&surf
->texture
, NULL
);
627 llvmpipe_transfer_map( struct pipe_context
*pipe
,
628 struct pipe_resource
*resource
,
631 const struct pipe_box
*box
,
632 struct pipe_transfer
**transfer
)
634 struct llvmpipe_context
*llvmpipe
= llvmpipe_context(pipe
);
635 struct llvmpipe_screen
*screen
= llvmpipe_screen(pipe
->screen
);
636 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
637 struct llvmpipe_transfer
*lpt
;
638 struct pipe_transfer
*pt
;
640 enum pipe_format format
;
641 enum lp_texture_usage tex_usage
;
645 assert(level
<= resource
->last_level
);
648 * Transfers, like other pipe operations, must happen in order, so flush the
649 * context if necessary.
651 if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
652 boolean read_only
= !(usage
& PIPE_TRANSFER_WRITE
);
653 boolean do_not_block
= !!(usage
& PIPE_TRANSFER_DONTBLOCK
);
654 if (!llvmpipe_flush_resource(pipe
, resource
,
657 TRUE
, /* cpu_access */
661 * It would have blocked, but state tracker requested no to.
663 assert(do_not_block
);
668 /* Check if we're mapping the current constant buffer */
669 if ((usage
& PIPE_TRANSFER_WRITE
) &&
670 resource
== llvmpipe
->constants
[PIPE_SHADER_FRAGMENT
][0].buffer
) {
671 /* constants may have changed */
672 llvmpipe
->dirty
|= LP_NEW_CONSTANTS
;
675 lpt
= CALLOC_STRUCT(llvmpipe_transfer
);
679 pipe_resource_reference(&pt
->resource
, resource
);
682 pt
->stride
= lpr
->row_stride
[level
];
683 pt
->layer_stride
= lpr
->img_stride
[level
];
687 assert(level
< LP_MAX_TEXTURE_LEVELS
);
690 printf("tex_transfer_map(%d, %d %d x %d of %d x %d, usage %d )\n",
691 transfer->x, transfer->y, transfer->width, transfer->height,
692 transfer->texture->width0,
693 transfer->texture->height0,
697 if (usage
== PIPE_TRANSFER_READ
) {
698 tex_usage
= LP_TEX_USAGE_READ
;
702 tex_usage
= LP_TEX_USAGE_READ_WRITE
;
707 printf("transfer map tex %u mode %s\n", lpr
->id
, mode
);
710 format
= lpr
->base
.format
;
712 map
= llvmpipe_resource_map(resource
,
715 tex_usage
, LP_TEX_LAYOUT_LINEAR
);
718 /* May want to do different things here depending on read/write nature
721 if (usage
& PIPE_TRANSFER_WRITE
) {
722 /* Do something to notify sharing contexts of a texture change.
728 box
->y
/ util_format_get_blockheight(format
) * pt
->stride
+
729 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
736 llvmpipe_transfer_unmap(struct pipe_context
*pipe
,
737 struct pipe_transfer
*transfer
)
739 assert(transfer
->resource
);
741 llvmpipe_resource_unmap(transfer
->resource
,
745 /* Effectively do the texture_update work here - if texture images
746 * needed post-processing to put them into hardware layout, this is
747 * where it would happen. For llvmpipe, nothing to do.
749 assert (transfer
->resource
);
750 pipe_resource_reference(&transfer
->resource
, NULL
);
755 llvmpipe_is_resource_referenced( struct pipe_context
*pipe
,
756 struct pipe_resource
*presource
,
759 struct llvmpipe_context
*llvmpipe
= llvmpipe_context( pipe
);
761 if (presource
->target
== PIPE_BUFFER
)
762 return LP_UNREFERENCED
;
764 return lp_setup_is_resource_referenced(llvmpipe
->setup
, presource
);
769 * Returns the largest possible alignment for a format in llvmpipe
772 llvmpipe_get_format_alignment( enum pipe_format format
)
774 const struct util_format_description
*desc
= util_format_description(format
);
779 for (i
= 0; i
< desc
->nr_channels
; ++i
) {
780 size
+= desc
->channel
[i
].size
;
785 if (!util_is_power_of_two(bytes
)) {
786 bytes
/= desc
->nr_channels
;
789 if (bytes
% 2 || bytes
< 1) {
798 * Create buffer which wraps user-space data.
800 struct pipe_resource
*
801 llvmpipe_user_buffer_create(struct pipe_screen
*screen
,
806 struct llvmpipe_resource
*buffer
;
808 buffer
= CALLOC_STRUCT(llvmpipe_resource
);
812 pipe_reference_init(&buffer
->base
.reference
, 1);
813 buffer
->base
.screen
= screen
;
814 buffer
->base
.format
= PIPE_FORMAT_R8_UNORM
; /* ?? */
815 buffer
->base
.bind
= bind_flags
;
816 buffer
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
817 buffer
->base
.flags
= 0;
818 buffer
->base
.width0
= bytes
;
819 buffer
->base
.height0
= 1;
820 buffer
->base
.depth0
= 1;
821 buffer
->base
.array_size
= 1;
822 buffer
->userBuffer
= TRUE
;
825 return &buffer
->base
;
830 * Compute size (in bytes) need to store a texture image / mipmap level,
831 * for just one cube face, one array layer or one 3D texture slice
834 tex_image_face_size(const struct llvmpipe_resource
*lpr
, unsigned level
,
835 enum lp_texture_layout layout
)
837 const unsigned width
= u_minify(lpr
->base
.width0
, level
);
838 const unsigned height
= u_minify(lpr
->base
.height0
, level
);
840 assert(layout
== LP_TEX_LAYOUT_TILED
||
841 layout
== LP_TEX_LAYOUT_LINEAR
);
843 if (layout
== LP_TEX_LAYOUT_TILED
) {
844 /* for tiled layout, force a 32bpp format */
845 const enum pipe_format format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
846 const unsigned block_size
= util_format_get_blocksize(format
);
847 const unsigned nblocksy
=
848 util_format_get_nblocksy(format
, align(height
, TILE_SIZE
));
849 const unsigned nblocksx
=
850 util_format_get_nblocksx(format
, align(width
, TILE_SIZE
));
851 const unsigned buffer_size
= block_size
* nblocksy
* nblocksx
;
855 /* we already computed this */
856 return lpr
->img_stride
[level
];
862 * Compute size (in bytes) need to store a texture image / mipmap level,
863 * including all cube faces or 3D image slices
866 tex_image_size(const struct llvmpipe_resource
*lpr
, unsigned level
,
867 enum lp_texture_layout layout
)
869 const unsigned buf_size
= tex_image_face_size(lpr
, level
, layout
);
870 return buf_size
* lpr
->num_slices_faces
[level
];
875 * This function encapsulates some complicated logic for determining
876 * how to convert a tile of image data from linear layout to tiled
877 * layout, or vice versa.
878 * \param cur_layout the current tile layout
879 * \param target_layout the desired tile layout
880 * \param usage how the tile will be accessed (R/W vs. read-only, etc)
881 * \param new_layout_return returns the new layout mode
882 * \param convert_return returns TRUE if image conversion is needed
885 layout_logic(enum lp_texture_layout cur_layout
,
886 enum lp_texture_layout target_layout
,
887 enum lp_texture_usage usage
,
888 enum lp_texture_layout
*new_layout_return
,
891 enum lp_texture_layout other_layout
, new_layout
;
895 new_layout
= 99; /* debug check */
897 if (target_layout
== LP_TEX_LAYOUT_LINEAR
) {
898 other_layout
= LP_TEX_LAYOUT_TILED
;
901 assert(target_layout
== LP_TEX_LAYOUT_TILED
);
902 other_layout
= LP_TEX_LAYOUT_LINEAR
;
905 new_layout
= target_layout
; /* may get changed below */
907 if (cur_layout
== LP_TEX_LAYOUT_BOTH
) {
908 if (usage
== LP_TEX_USAGE_READ
) {
909 new_layout
= LP_TEX_LAYOUT_BOTH
;
912 else if (cur_layout
== other_layout
) {
913 if (usage
!= LP_TEX_USAGE_WRITE_ALL
) {
914 /* need to convert tiled data to linear or vice versa */
917 if (usage
== LP_TEX_USAGE_READ
)
918 new_layout
= LP_TEX_LAYOUT_BOTH
;
922 assert(cur_layout
== LP_TEX_LAYOUT_NONE
||
923 cur_layout
== target_layout
);
926 assert(new_layout
== LP_TEX_LAYOUT_BOTH
||
927 new_layout
== target_layout
);
929 *new_layout_return
= new_layout
;
934 * Return pointer to a 2D texture image/face/slice.
935 * No tiled/linear conversion is done.
938 llvmpipe_get_texture_image_address(struct llvmpipe_resource
*lpr
,
939 unsigned face_slice
, unsigned level
,
940 enum lp_texture_layout layout
)
942 struct llvmpipe_texture_image
*img
;
945 if (layout
== LP_TEX_LAYOUT_LINEAR
) {
946 img
= &lpr
->linear_img
;
947 offset
= lpr
->linear_mip_offsets
[level
];
950 assert (layout
== LP_TEX_LAYOUT_TILED
);
951 img
= &lpr
->tiled_img
;
952 offset
= lpr
->tiled_mip_offsets
[level
];
956 offset
+= face_slice
* tex_image_face_size(lpr
, level
, layout
);
958 return (ubyte
*) img
->data
+ offset
;
962 static INLINE
enum lp_texture_layout
963 llvmpipe_get_texture_tile_layout(const struct llvmpipe_resource
*lpr
,
964 unsigned face_slice
, unsigned level
,
965 unsigned x
, unsigned y
)
968 assert(resource_is_texture(&lpr
->base
));
969 assert(x
< lpr
->tiles_per_row
[level
]);
970 i
= face_slice
* lpr
->tiles_per_image
[level
]
971 + y
* lpr
->tiles_per_row
[level
] + x
;
972 return lpr
->layout
[level
][i
];
977 llvmpipe_set_texture_tile_layout(struct llvmpipe_resource
*lpr
,
978 unsigned face_slice
, unsigned level
,
979 unsigned x
, unsigned y
,
980 enum lp_texture_layout layout
)
983 assert(resource_is_texture(&lpr
->base
));
984 assert(x
< lpr
->tiles_per_row
[level
]);
985 i
= face_slice
* lpr
->tiles_per_image
[level
]
986 + y
* lpr
->tiles_per_row
[level
] + x
;
987 lpr
->layout
[level
][i
] = layout
;
992 * Set the layout mode for all tiles in a particular image.
995 llvmpipe_set_texture_image_layout(struct llvmpipe_resource
*lpr
,
996 unsigned face_slice
, unsigned level
,
997 unsigned width_t
, unsigned height_t
,
998 enum lp_texture_layout layout
)
1000 const unsigned start
= face_slice
* lpr
->tiles_per_image
[level
];
1003 for (i
= 0; i
< width_t
* height_t
; i
++) {
1004 lpr
->layout
[level
][start
+ i
] = layout
;
1010 * Allocate storage for a linear or tile texture image (all cube
1011 * faces and all 3D slices, all levels).
1014 alloc_image_data(struct llvmpipe_resource
*lpr
,
1015 enum lp_texture_layout layout
)
1017 uint alignment
= MAX2(16, util_cpu_caps
.cacheline
);
1022 assert(lpr
->base
.last_level
== 0);
1024 if (layout
== LP_TEX_LAYOUT_TILED
) {
1025 /* tiled data is stored in regular memory */
1026 for (level
= 0; level
<= lpr
->base
.last_level
; level
++) {
1027 uint buffer_size
= tex_image_size(lpr
, level
, layout
);
1028 lpr
->tiled_mip_offsets
[level
] = offset
;
1029 offset
+= align(buffer_size
, alignment
);
1031 lpr
->tiled_img
.data
= align_malloc(offset
, alignment
);
1032 if (lpr
->tiled_img
.data
) {
1033 memset(lpr
->tiled_img
.data
, 0, offset
);
1037 assert(layout
== LP_TEX_LAYOUT_LINEAR
);
1039 /* we get the linear memory from the winsys, and it has
1040 * already been zeroed
1042 struct llvmpipe_screen
*screen
= llvmpipe_screen(lpr
->base
.screen
);
1043 struct sw_winsys
*winsys
= screen
->winsys
;
1045 lpr
->linear_img
.data
=
1046 winsys
->displaytarget_map(winsys
, lpr
->dt
,
1047 PIPE_TRANSFER_READ_WRITE
);
1050 /* not a display target - allocate regular memory */
1052 * Offset calculation for start of a specific mip/layer is always
1053 * offset = lpr->linear_mip_offsets[level] + lpr->img_stride[level] * layer
1055 for (level
= 0; level
<= lpr
->base
.last_level
; level
++) {
1056 uint buffer_size
= tex_image_size(lpr
, level
, LP_TEX_LAYOUT_LINEAR
);
1057 lpr
->linear_mip_offsets
[level
] = offset
;
1058 offset
+= align(buffer_size
, alignment
);
1060 lpr
->linear_img
.data
= align_malloc(offset
, alignment
);
1061 if (lpr
->linear_img
.data
) {
1062 memset(lpr
->linear_img
.data
, 0, offset
);
1071 * Return pointer to texture image data (either linear or tiled layout)
1072 * for a particular cube face or 3D texture slice.
1074 * \param face_slice the cube face or 3D slice of interest
1075 * \param usage one of LP_TEX_USAGE_READ/WRITE_ALL/READ_WRITE
1076 * \param layout either LP_TEX_LAYOUT_LINEAR or _TILED or _NONE
1079 llvmpipe_get_texture_image(struct llvmpipe_resource
*lpr
,
1080 unsigned face_slice
, unsigned level
,
1081 enum lp_texture_usage usage
,
1082 enum lp_texture_layout layout
)
1085 * 'target' refers to the image which we're retrieving (either in
1086 * tiled or linear layout).
1087 * 'other' refers to the same image but in the other layout. (it may
1090 struct llvmpipe_texture_image
*target_img
;
1091 struct llvmpipe_texture_image
*other_img
;
1094 const unsigned width
= u_minify(lpr
->base
.width0
, level
);
1095 const unsigned height
= u_minify(lpr
->base
.height0
, level
);
1096 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
1097 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
1098 unsigned target_offset
, other_offset
;
1099 unsigned *target_off_ptr
, *other_off_ptr
;
1100 enum lp_texture_layout other_layout
;
1101 boolean only_allocate
;
1103 assert(layout
== LP_TEX_LAYOUT_NONE
||
1104 layout
== LP_TEX_LAYOUT_TILED
||
1105 layout
== LP_TEX_LAYOUT_LINEAR
);
1107 assert(usage
== LP_TEX_USAGE_READ
||
1108 usage
== LP_TEX_USAGE_READ_WRITE
||
1109 usage
== LP_TEX_USAGE_WRITE_ALL
);
1111 /* check for the special case of layout == LP_TEX_LAYOUT_NONE */
1112 if (layout
== LP_TEX_LAYOUT_NONE
) {
1113 only_allocate
= TRUE
;
1114 layout
= LP_TEX_LAYOUT_TILED
;
1117 only_allocate
= FALSE
;
1121 assert(lpr
->linear_img
.data
);
1124 /* which is target? which is other? */
1125 if (layout
== LP_TEX_LAYOUT_LINEAR
) {
1126 target_img
= &lpr
->linear_img
;
1127 target_off_ptr
= lpr
->linear_mip_offsets
;
1128 other_img
= &lpr
->tiled_img
;
1129 other_off_ptr
= lpr
->tiled_mip_offsets
;
1130 other_layout
= LP_TEX_LAYOUT_TILED
;
1133 target_img
= &lpr
->tiled_img
;
1134 target_off_ptr
= lpr
->tiled_mip_offsets
;
1135 other_img
= &lpr
->linear_img
;
1136 other_off_ptr
= lpr
->linear_mip_offsets
;
1137 other_layout
= LP_TEX_LAYOUT_LINEAR
;
1140 target_data
= target_img
->data
;
1141 other_data
= other_img
->data
;
1144 /* allocate memory for the target image now */
1145 alloc_image_data(lpr
, layout
);
1146 target_data
= target_img
->data
;
1149 target_offset
= target_off_ptr
[level
];
1150 other_offset
= other_off_ptr
[level
];
1152 if (face_slice
> 0) {
1153 target_offset
+= face_slice
* tex_image_face_size(lpr
, level
, layout
);
1154 other_offset
+= face_slice
* tex_image_face_size(lpr
, level
, other_layout
);
1158 target_data
= (uint8_t *) target_data
+ target_offset
;
1161 other_data
= (uint8_t *) other_data
+ other_offset
;
1164 if (only_allocate
) {
1165 /* Just allocating tiled memory. Don't initialize it from the
1166 * linear data if it exists.
1172 /* may need to convert other data to the requested layout */
1173 enum lp_texture_layout new_layout
;
1176 /* loop over all image tiles, doing layout conversion where needed */
1177 for (y
= 0; y
< height_t
; y
++) {
1178 for (x
= 0; x
< width_t
; x
++) {
1179 enum lp_texture_layout cur_layout
=
1180 llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, x
, y
);
1183 layout_logic(cur_layout
, layout
, usage
, &new_layout
, &convert
);
1185 if (convert
&& other_data
&& target_data
) {
1186 if (layout
== LP_TEX_LAYOUT_TILED
) {
1187 lp_linear_to_tiled(other_data
, target_data
,
1188 x
* TILE_SIZE
, y
* TILE_SIZE
,
1189 TILE_SIZE
, TILE_SIZE
,
1191 lpr
->row_stride
[level
],
1192 lpr
->tiles_per_row
[level
]);
1195 assert(layout
== LP_TEX_LAYOUT_LINEAR
);
1196 lp_tiled_to_linear(other_data
, target_data
,
1197 x
* TILE_SIZE
, y
* TILE_SIZE
,
1198 TILE_SIZE
, TILE_SIZE
,
1200 lpr
->row_stride
[level
],
1201 lpr
->tiles_per_row
[level
]);
1205 if (new_layout
!= cur_layout
)
1206 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, x
, y
,
1213 llvmpipe_set_texture_image_layout(lpr
, face_slice
, level
,
1214 width_t
, height_t
, layout
);
1222 * Return pointer to start of a texture image (1D, 2D, 3D, CUBE).
1223 * All cube faces and 3D slices will be converted to the requested
1225 * This is typically used when we're about to sample from a texture.
1228 llvmpipe_get_texture_image_all(struct llvmpipe_resource
*lpr
,
1230 enum lp_texture_usage usage
,
1231 enum lp_texture_layout layout
)
1233 const int slices
= lpr
->num_slices_faces
[level
];
1239 for (slice
= slices
- 1; slice
>= 0; slice
--) {
1240 map
= llvmpipe_get_texture_image(lpr
, slice
, level
, usage
, layout
);
1248 * Get pointer to a linear image (not the tile!) where the tile at (x,y)
1249 * is known to be in linear layout.
1250 * Conversion from tiled to linear will be done if necessary.
1251 * \return pointer to start of image/face (not the tile)
1254 llvmpipe_get_texture_tile_linear(struct llvmpipe_resource
*lpr
,
1255 unsigned face_slice
, unsigned level
,
1256 enum lp_texture_usage usage
,
1257 unsigned x
, unsigned y
)
1259 struct llvmpipe_texture_image
*linear_img
= &lpr
->linear_img
;
1260 enum lp_texture_layout cur_layout
, new_layout
;
1261 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1263 uint8_t *tiled_image
, *linear_image
;
1265 assert(resource_is_texture(&lpr
->base
));
1266 assert(x
% TILE_SIZE
== 0);
1267 assert(y
% TILE_SIZE
== 0);
1269 if (!linear_img
->data
) {
1270 /* allocate memory for the linear image now */
1271 alloc_image_data(lpr
, LP_TEX_LAYOUT_LINEAR
);
1274 /* compute address of the slice/face of the image that contains the tile */
1275 tiled_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1276 LP_TEX_LAYOUT_TILED
);
1277 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1278 LP_TEX_LAYOUT_LINEAR
);
1280 /* get current tile layout and determine if data conversion is needed */
1281 cur_layout
= llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
);
1283 layout_logic(cur_layout
, LP_TEX_LAYOUT_LINEAR
, usage
,
1284 &new_layout
, &convert
);
1286 if (convert
&& tiled_image
&& linear_image
) {
1287 lp_tiled_to_linear(tiled_image
, linear_image
,
1288 x
, y
, TILE_SIZE
, TILE_SIZE
, lpr
->base
.format
,
1289 lpr
->row_stride
[level
],
1290 lpr
->tiles_per_row
[level
]);
1293 if (new_layout
!= cur_layout
)
1294 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
, new_layout
);
1296 return linear_image
;
1301 * Get pointer to tiled data for rendering.
1302 * \return pointer to the tiled data at the given tile position
1305 llvmpipe_get_texture_tile(struct llvmpipe_resource
*lpr
,
1306 unsigned face_slice
, unsigned level
,
1307 enum lp_texture_usage usage
,
1308 unsigned x
, unsigned y
)
1310 struct llvmpipe_texture_image
*tiled_img
= &lpr
->tiled_img
;
1311 enum lp_texture_layout cur_layout
, new_layout
;
1312 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1314 uint8_t *tiled_image
, *linear_image
;
1315 unsigned tile_offset
;
1317 assert(x
% TILE_SIZE
== 0);
1318 assert(y
% TILE_SIZE
== 0);
1320 if (!tiled_img
->data
) {
1321 /* allocate memory for the tiled image now */
1322 alloc_image_data(lpr
, LP_TEX_LAYOUT_TILED
);
1325 /* compute address of the slice/face of the image that contains the tile */
1326 tiled_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1327 LP_TEX_LAYOUT_TILED
);
1328 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1329 LP_TEX_LAYOUT_LINEAR
);
1331 /* get current tile layout and see if we need to convert the data */
1332 cur_layout
= llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
);
1334 layout_logic(cur_layout
, LP_TEX_LAYOUT_TILED
, usage
, &new_layout
, &convert
);
1335 if (convert
&& linear_image
&& tiled_image
) {
1336 lp_linear_to_tiled(linear_image
, tiled_image
,
1337 x
, y
, TILE_SIZE
, TILE_SIZE
, lpr
->base
.format
,
1338 lpr
->row_stride
[level
],
1339 lpr
->tiles_per_row
[level
]);
1345 if (new_layout
!= cur_layout
)
1346 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
, new_layout
);
1348 /* compute, return address of the 64x64 tile */
1349 tile_offset
= (ty
* lpr
->tiles_per_row
[level
] + tx
)
1350 * TILE_SIZE
* TILE_SIZE
* 4;
1352 return (ubyte
*) tiled_image
+ tile_offset
;
1357 * Return size of resource in bytes
1360 llvmpipe_resource_size(const struct pipe_resource
*resource
)
1362 const struct llvmpipe_resource
*lpr
= llvmpipe_resource_const(resource
);
1363 unsigned lvl
, size
= 0;
1365 for (lvl
= 0; lvl
<= lpr
->base
.last_level
; lvl
++) {
1366 if (lpr
->linear_img
.data
)
1367 size
+= tex_image_size(lpr
, lvl
, LP_TEX_LAYOUT_LINEAR
);
1369 if (lpr
->tiled_img
.data
)
1370 size
+= tex_image_size(lpr
, lvl
, LP_TEX_LAYOUT_TILED
);
1379 llvmpipe_print_resources(void)
1381 struct llvmpipe_resource
*lpr
;
1382 unsigned n
= 0, total
= 0;
1384 debug_printf("LLVMPIPE: current resources:\n");
1385 foreach(lpr
, &resource_list
) {
1386 unsigned size
= llvmpipe_resource_size(&lpr
->base
);
1387 debug_printf("resource %u at %p, size %ux%ux%u: %u bytes, refcount %u\n",
1388 lpr
->id
, (void *) lpr
,
1389 lpr
->base
.width0
, lpr
->base
.height0
, lpr
->base
.depth0
,
1390 size
, lpr
->base
.reference
.count
);
1394 debug_printf("LLVMPIPE: total size of %u resources: %u\n", n
, total
);
1400 llvmpipe_init_screen_resource_funcs(struct pipe_screen
*screen
)
1403 /* init linked list for tracking resources */
1405 static boolean first_call
= TRUE
;
1407 memset(&resource_list
, 0, sizeof(resource_list
));
1408 make_empty_list(&resource_list
);
1414 screen
->resource_create
= llvmpipe_resource_create
;
1415 screen
->resource_destroy
= llvmpipe_resource_destroy
;
1416 screen
->resource_from_handle
= llvmpipe_resource_from_handle
;
1417 screen
->resource_get_handle
= llvmpipe_resource_get_handle
;
1418 screen
->can_create_resource
= llvmpipe_can_create_resource
;
1423 llvmpipe_init_context_resource_funcs(struct pipe_context
*pipe
)
1425 pipe
->transfer_map
= llvmpipe_transfer_map
;
1426 pipe
->transfer_unmap
= llvmpipe_transfer_unmap
;
1428 pipe
->transfer_flush_region
= u_default_transfer_flush_region
;
1429 pipe
->transfer_inline_write
= u_default_transfer_inline_write
;
1431 pipe
->create_surface
= llvmpipe_create_surface
;
1432 pipe
->surface_destroy
= llvmpipe_surface_destroy
;