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_format.h"
40 #include "util/u_math.h"
41 #include "util/u_memory.h"
42 #include "util/u_transfer.h"
44 #include "lp_context.h"
46 #include "lp_screen.h"
47 #include "lp_tile_image.h"
48 #include "lp_texture.h"
50 #include "lp_tile_size.h"
52 #include "state_tracker/sw_winsys.h"
56 resource_is_texture(const struct pipe_resource
*resource
)
58 switch (resource
->target
) {
64 case PIPE_TEXTURE_CUBE
:
75 * Allocate storage for llvmpipe_texture::layout array.
76 * The number of elements is width_in_tiles * height_in_tiles.
78 static enum lp_texture_layout
*
79 alloc_layout_array(unsigned num_slices
, unsigned width
, unsigned height
)
81 const unsigned tx
= align(width
, TILE_SIZE
) / TILE_SIZE
;
82 const unsigned ty
= align(height
, TILE_SIZE
) / TILE_SIZE
;
84 assert(num_slices
* tx
* ty
> 0);
85 assert(LP_TEX_LAYOUT_NONE
== 0); /* calloc'ing LP_TEX_LAYOUT_NONE here */
87 return (enum lp_texture_layout
*)
88 calloc(num_slices
* tx
* ty
, sizeof(enum lp_texture_layout
));
94 * Conventional allocation path for non-display textures:
95 * Just compute row strides here. Storage is allocated on demand later.
98 llvmpipe_texture_layout(struct llvmpipe_screen
*screen
,
99 struct llvmpipe_resource
*lpr
)
101 struct pipe_resource
*pt
= &lpr
->base
;
103 unsigned width
= pt
->width0
;
104 unsigned height
= pt
->height0
;
105 unsigned depth
= pt
->depth0
;
107 assert(LP_MAX_TEXTURE_2D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
108 assert(LP_MAX_TEXTURE_3D_LEVELS
<= LP_MAX_TEXTURE_LEVELS
);
110 for (level
= 0; level
<= pt
->last_level
; level
++) {
111 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
112 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
113 unsigned nblocksx
, num_slices
;
115 if (lpr
->base
.target
== PIPE_TEXTURE_CUBE
)
117 else if (lpr
->base
.target
== PIPE_TEXTURE_3D
)
122 /* Allocate storage for whole quads. This is particularly important
123 * for depth surfaces, which are currently stored in a swizzled format.
125 nblocksx
= util_format_get_nblocksx(pt
->format
, align(width
, TILE_SIZE
));
127 lpr
->row_stride
[level
] =
128 align(nblocksx
* util_format_get_blocksize(pt
->format
), 16);
130 lpr
->img_stride
[level
] = lpr
->row_stride
[level
] * align(height
, TILE_SIZE
);
132 lpr
->tiles_per_row
[level
] = width_t
;
133 lpr
->tiles_per_image
[level
] = width_t
* height_t
;
134 lpr
->num_slices_faces
[level
] = num_slices
;
135 lpr
->layout
[level
] = alloc_layout_array(num_slices
, width
, height
);
137 width
= u_minify(width
, 1);
138 height
= u_minify(height
, 1);
139 depth
= u_minify(depth
, 1);
148 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
149 struct llvmpipe_resource
*lpr
)
151 struct sw_winsys
*winsys
= screen
->winsys
;
153 /* Round up the surface size to a multiple of the tile size to
154 * avoid tile clipping.
156 const unsigned width
= align(lpr
->base
.width0
, TILE_SIZE
);
157 const unsigned height
= align(lpr
->base
.height0
, TILE_SIZE
);
158 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
159 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
161 lpr
->tiles_per_row
[0] = width_t
;
162 lpr
->tiles_per_image
[0] = width_t
* height_t
;
163 lpr
->num_slices_faces
[0] = 1;
164 lpr
->img_stride
[0] = 0;
166 lpr
->layout
[0] = alloc_layout_array(1, width
, height
);
167 //lpr->layout[0][0] = LP_TEX_LAYOUT_LINEAR;
169 lpr
->dt
= winsys
->displaytarget_create(winsys
,
174 &lpr
->row_stride
[0] );
176 return lpr
->dt
!= NULL
;
180 static struct pipe_resource
*
181 llvmpipe_resource_create(struct pipe_screen
*_screen
,
182 const struct pipe_resource
*templat
)
184 static unsigned id_counter
= 0;
185 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
186 struct llvmpipe_resource
*lpr
= CALLOC_STRUCT(llvmpipe_resource
);
190 lpr
->base
= *templat
;
191 pipe_reference_init(&lpr
->base
.reference
, 1);
192 lpr
->base
.screen
= &screen
->base
;
194 assert(lpr
->base
.bind
);
196 if (resource_is_texture(&lpr
->base
)) {
197 if (lpr
->base
.bind
& PIPE_BIND_DISPLAY_TARGET
) {
198 /* displayable surface */
199 if (!llvmpipe_displaytarget_layout(screen
, lpr
))
201 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
205 if (!llvmpipe_texture_layout(screen
, lpr
))
207 assert(lpr
->layout
[0][0] == LP_TEX_LAYOUT_NONE
);
209 assert(lpr
->layout
[0]);
212 /* other data (vertex buffer, const buffer, etc) */
213 const enum pipe_format format
= templat
->format
;
214 const uint w
= templat
->width0
/ util_format_get_blockheight(format
);
215 const uint h
= templat
->height0
/ util_format_get_blockwidth(format
);
216 const uint d
= templat
->depth0
;
217 const uint bpp
= util_format_get_blocksize(format
);
218 const uint bytes
= w
* h
* d
* bpp
;
219 lpr
->data
= align_malloc(bytes
, 16);
224 lpr
->id
= id_counter
++;
235 llvmpipe_resource_destroy(struct pipe_screen
*pscreen
,
236 struct pipe_resource
*pt
)
238 struct llvmpipe_screen
*screen
= llvmpipe_screen(pscreen
);
239 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
243 struct sw_winsys
*winsys
= screen
->winsys
;
244 winsys
->displaytarget_destroy(winsys
, lpr
->dt
);
246 else if (resource_is_texture(pt
)) {
247 /* regular texture */
250 /* free linear image data */
251 for (level
= 0; level
< Elements(lpr
->linear
); level
++) {
252 if (lpr
->linear
[level
].data
) {
253 align_free(lpr
->linear
[level
].data
);
254 lpr
->linear
[level
].data
= NULL
;
258 /* free tiled image data */
259 for (level
= 0; level
< Elements(lpr
->tiled
); level
++) {
260 if (lpr
->tiled
[level
].data
) {
261 align_free(lpr
->tiled
[level
].data
);
262 lpr
->tiled
[level
].data
= NULL
;
266 /* free layout flag arrays */
267 for (level
= 0; level
< Elements(lpr
->tiled
); level
++) {
268 free(lpr
->layout
[level
]);
269 lpr
->layout
[level
] = NULL
;
272 else if (!lpr
->userBuffer
) {
274 align_free(lpr
->data
);
282 * Map a resource for read/write.
285 llvmpipe_resource_map(struct pipe_resource
*resource
,
289 enum lp_texture_usage tex_usage
,
290 enum lp_texture_layout layout
)
292 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
296 assert(level
< LP_MAX_TEXTURE_LEVELS
);
298 assert(tex_usage
== LP_TEX_USAGE_READ
||
299 tex_usage
== LP_TEX_USAGE_READ_WRITE
||
300 tex_usage
== LP_TEX_USAGE_WRITE_ALL
);
302 assert(layout
== LP_TEX_LAYOUT_NONE
||
303 layout
== LP_TEX_LAYOUT_TILED
||
304 layout
== LP_TEX_LAYOUT_LINEAR
);
308 struct llvmpipe_screen
*screen
= llvmpipe_screen(resource
->screen
);
309 struct sw_winsys
*winsys
= screen
->winsys
;
313 if (tex_usage
== LP_TEX_USAGE_READ
) {
314 dt_usage
= PIPE_TRANSFER_READ
;
317 dt_usage
= PIPE_TRANSFER_READ_WRITE
;
324 /* FIXME: keep map count? */
325 map
= winsys
->displaytarget_map(winsys
, lpr
->dt
, dt_usage
);
327 /* install this linear image in texture data structure */
328 lpr
->linear
[level
].data
= map
;
330 /* make sure tiled data gets converted to linear data */
331 map2
= llvmpipe_get_texture_image(lpr
, 0, 0, tex_usage
, layout
);
332 if (layout
== LP_TEX_LAYOUT_LINEAR
)
337 else if (resource_is_texture(resource
)) {
338 /* regular texture */
339 if (resource
->target
!= PIPE_TEXTURE_CUBE
) {
342 if (resource
->target
!= PIPE_TEXTURE_3D
) {
346 map
= llvmpipe_get_texture_image(lpr
, face
+ zslice
, level
,
361 llvmpipe_resource_unmap(struct pipe_resource
*resource
,
366 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
370 struct llvmpipe_screen
*lp_screen
= llvmpipe_screen(resource
->screen
);
371 struct sw_winsys
*winsys
= lp_screen
->winsys
;
377 /* make sure linear image is up to date */
378 (void) llvmpipe_get_texture_image(lpr
, face
+ zslice
, level
,
380 LP_TEX_LAYOUT_LINEAR
);
382 winsys
->displaytarget_unmap(winsys
, lpr
->dt
);
388 llvmpipe_resource_data(struct pipe_resource
*resource
)
390 struct llvmpipe_resource
*lpr
= llvmpipe_resource(resource
);
392 assert(!resource_is_texture(resource
));
398 static struct pipe_resource
*
399 llvmpipe_resource_from_handle(struct pipe_screen
*screen
,
400 const struct pipe_resource
*template,
401 struct winsys_handle
*whandle
)
403 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
404 struct llvmpipe_resource
*lpr
= CALLOC_STRUCT(llvmpipe_resource
);
408 lpr
->base
= *template;
409 pipe_reference_init(&lpr
->base
.reference
, 1);
410 lpr
->base
.screen
= screen
;
412 lpr
->dt
= winsys
->displaytarget_from_handle(winsys
,
415 &lpr
->row_stride
[0]);
428 llvmpipe_resource_get_handle(struct pipe_screen
*screen
,
429 struct pipe_resource
*pt
,
430 struct winsys_handle
*whandle
)
432 struct sw_winsys
*winsys
= llvmpipe_screen(screen
)->winsys
;
433 struct llvmpipe_resource
*lpr
= llvmpipe_resource(pt
);
439 return winsys
->displaytarget_get_handle(winsys
, lpr
->dt
, whandle
);
443 static struct pipe_surface
*
444 llvmpipe_get_tex_surface(struct pipe_screen
*screen
,
445 struct pipe_resource
*pt
,
446 unsigned face
, unsigned level
, unsigned zslice
,
447 enum lp_texture_usage usage
)
449 struct pipe_surface
*ps
;
451 assert(level
<= pt
->last_level
);
453 ps
= CALLOC_STRUCT(pipe_surface
);
455 pipe_reference_init(&ps
->reference
, 1);
456 pipe_resource_reference(&ps
->texture
, pt
);
457 ps
->format
= pt
->format
;
458 ps
->width
= u_minify(pt
->width0
, level
);
459 ps
->height
= u_minify(pt
->height0
, level
);
471 llvmpipe_tex_surface_destroy(struct pipe_surface
*surf
)
473 /* Effectively do the texture_update work here - if texture images
474 * needed post-processing to put them into hardware layout, this is
475 * where it would happen. For llvmpipe, nothing to do.
477 assert(surf
->texture
);
478 pipe_resource_reference(&surf
->texture
, NULL
);
483 static struct pipe_transfer
*
484 llvmpipe_get_transfer(struct pipe_context
*pipe
,
485 struct pipe_resource
*resource
,
486 struct pipe_subresource sr
,
488 const struct pipe_box
*box
)
490 struct llvmpipe_resource
*lprex
= llvmpipe_resource(resource
);
491 struct llvmpipe_transfer
*lpr
;
494 assert(sr
.level
<= resource
->last_level
);
496 lpr
= CALLOC_STRUCT(llvmpipe_transfer
);
498 struct pipe_transfer
*pt
= &lpr
->base
;
499 pipe_resource_reference(&pt
->resource
, resource
);
502 pt
->stride
= lprex
->row_stride
[sr
.level
];
512 llvmpipe_transfer_destroy(struct pipe_context
*pipe
,
513 struct pipe_transfer
*transfer
)
515 /* Effectively do the texture_update work here - if texture images
516 * needed post-processing to put them into hardware layout, this is
517 * where it would happen. For llvmpipe, nothing to do.
519 assert (transfer
->resource
);
520 pipe_resource_reference(&transfer
->resource
, NULL
);
526 llvmpipe_transfer_map( struct pipe_context
*pipe
,
527 struct pipe_transfer
*transfer
)
529 struct llvmpipe_screen
*screen
= llvmpipe_screen(pipe
->screen
);
531 struct llvmpipe_resource
*lpr
;
532 enum pipe_format format
;
533 enum lp_texture_usage tex_usage
;
536 assert(transfer
->sr
.face
< 6);
537 assert(transfer
->sr
.level
< LP_MAX_TEXTURE_LEVELS
);
540 printf("tex_transfer_map(%d, %d %d x %d of %d x %d, usage %d )\n",
541 transfer->x, transfer->y, transfer->width, transfer->height,
542 transfer->texture->width0,
543 transfer->texture->height0,
547 if (transfer
->usage
== PIPE_TRANSFER_READ
) {
548 tex_usage
= LP_TEX_USAGE_READ
;
552 tex_usage
= LP_TEX_USAGE_READ_WRITE
;
557 struct llvmpipe_resource
*lpr
= llvmpipe_resource(transfer
->resource
);
558 printf("transfer map tex %u mode %s\n", lpr
->id
, mode
);
562 assert(transfer
->resource
);
563 lpr
= llvmpipe_resource(transfer
->resource
);
564 format
= lpr
->base
.format
;
567 * Transfers, like other pipe operations, must happen in order, so flush the
568 * context if necessary.
570 llvmpipe_flush_texture(pipe
,
575 !(transfer
->usage
& PIPE_TRANSFER_WRITE
), /* read_only */
576 TRUE
, /* cpu_access */
577 FALSE
); /* do_not_flush */
579 map
= llvmpipe_resource_map(transfer
->resource
,
583 tex_usage
, LP_TEX_LAYOUT_LINEAR
);
586 /* May want to do different things here depending on read/write nature
589 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
590 /* Do something to notify sharing contexts of a texture change.
596 transfer
->box
.y
/ util_format_get_blockheight(format
) * transfer
->stride
+
597 transfer
->box
.x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
604 llvmpipe_transfer_unmap(struct pipe_context
*pipe
,
605 struct pipe_transfer
*transfer
)
607 assert(transfer
->resource
);
609 llvmpipe_resource_unmap(transfer
->resource
,
616 llvmpipe_is_resource_referenced( struct pipe_context
*pipe
,
617 struct pipe_resource
*presource
,
618 unsigned face
, unsigned level
)
620 struct llvmpipe_context
*llvmpipe
= llvmpipe_context( pipe
);
622 if (presource
->target
== PIPE_BUFFER
)
623 return PIPE_UNREFERENCED
;
625 return lp_setup_is_resource_referenced(llvmpipe
->setup
, presource
);
631 * Create buffer which wraps user-space data.
633 static struct pipe_resource
*
634 llvmpipe_user_buffer_create(struct pipe_screen
*screen
,
639 struct llvmpipe_resource
*buffer
;
641 buffer
= CALLOC_STRUCT(llvmpipe_resource
);
645 pipe_reference_init(&buffer
->base
.reference
, 1);
646 buffer
->base
.screen
= screen
;
647 buffer
->base
.format
= PIPE_FORMAT_R8_UNORM
; /* ?? */
648 buffer
->base
.bind
= bind_flags
;
649 buffer
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
650 buffer
->base
.flags
= 0;
651 buffer
->base
.width0
= bytes
;
652 buffer
->base
.height0
= 1;
653 buffer
->base
.depth0
= 1;
654 buffer
->userBuffer
= TRUE
;
657 return &buffer
->base
;
662 * Compute size (in bytes) need to store a texture image / mipmap level,
663 * for just one cube face or one 3D texture slice
666 tex_image_face_size(const struct llvmpipe_resource
*lpr
, unsigned level
,
667 enum lp_texture_layout layout
)
669 const unsigned width
= u_minify(lpr
->base
.width0
, level
);
670 const unsigned height
= u_minify(lpr
->base
.height0
, level
);
672 assert(layout
== LP_TEX_LAYOUT_TILED
||
673 layout
== LP_TEX_LAYOUT_LINEAR
);
675 if (layout
== LP_TEX_LAYOUT_TILED
) {
676 /* for tiled layout, force a 32bpp format */
677 const enum pipe_format format
= PIPE_FORMAT_B8G8R8A8_UNORM
;
678 const unsigned block_size
= util_format_get_blocksize(format
);
679 const unsigned nblocksy
=
680 util_format_get_nblocksy(format
, align(height
, TILE_SIZE
));
681 const unsigned nblocksx
=
682 util_format_get_nblocksx(format
, align(width
, TILE_SIZE
));
683 const unsigned buffer_size
= block_size
* nblocksy
* nblocksx
;
687 const enum pipe_format format
= lpr
->base
.format
;
688 const unsigned nblocksy
=
689 util_format_get_nblocksy(format
, align(height
, TILE_SIZE
));
690 const unsigned buffer_size
= nblocksy
* lpr
->row_stride
[level
];
697 * Compute size (in bytes) need to store a texture image / mipmap level,
698 * including all cube faces or 3D image slices
701 tex_image_size(const struct llvmpipe_resource
*lpr
, unsigned level
,
702 enum lp_texture_layout layout
)
704 const unsigned buf_size
= tex_image_face_size(lpr
, level
, layout
);
705 return buf_size
* lpr
->num_slices_faces
[level
];
710 * This function encapsulates some complicated logic for determining
711 * how to convert a tile of image data from linear layout to tiled
712 * layout, or vice versa.
713 * \param cur_layout the current tile layout
714 * \param target_layout the desired tile layout
715 * \param usage how the tile will be accessed (R/W vs. read-only, etc)
716 * \param new_layout_return returns the new layout mode
717 * \param convert_return returns TRUE if image conversion is needed
720 layout_logic(enum lp_texture_layout cur_layout
,
721 enum lp_texture_layout target_layout
,
722 enum lp_texture_usage usage
,
723 enum lp_texture_layout
*new_layout_return
,
726 enum lp_texture_layout other_layout
, new_layout
;
730 new_layout
= 99; /* debug check */
732 if (target_layout
== LP_TEX_LAYOUT_LINEAR
) {
733 other_layout
= LP_TEX_LAYOUT_TILED
;
736 assert(target_layout
== LP_TEX_LAYOUT_TILED
);
737 other_layout
= LP_TEX_LAYOUT_LINEAR
;
740 new_layout
= target_layout
; /* may get changed below */
742 if (cur_layout
== LP_TEX_LAYOUT_BOTH
) {
743 if (usage
== LP_TEX_USAGE_READ
) {
744 new_layout
= LP_TEX_LAYOUT_BOTH
;
747 else if (cur_layout
== other_layout
) {
748 if (usage
!= LP_TEX_USAGE_WRITE_ALL
) {
749 /* need to convert tiled data to linear or vice versa */
752 if (usage
== LP_TEX_USAGE_READ
)
753 new_layout
= LP_TEX_LAYOUT_BOTH
;
757 assert(cur_layout
== LP_TEX_LAYOUT_NONE
||
758 cur_layout
== target_layout
);
761 assert(new_layout
== LP_TEX_LAYOUT_BOTH
||
762 new_layout
== target_layout
);
764 *new_layout_return
= new_layout
;
769 * Return pointer to a 2D texture image/face/slice.
770 * No tiled/linear conversion is done.
773 llvmpipe_get_texture_image_address(struct llvmpipe_resource
*lpr
,
774 unsigned face_slice
, unsigned level
,
775 enum lp_texture_layout layout
)
777 struct llvmpipe_texture_image
*img
;
780 if (layout
== LP_TEX_LAYOUT_LINEAR
) {
781 img
= &lpr
->linear
[level
];
784 assert (layout
== LP_TEX_LAYOUT_TILED
);
785 img
= &lpr
->tiled
[level
];
789 offset
= face_slice
* tex_image_face_size(lpr
, level
, layout
);
793 return (ubyte
*) img
->data
+ offset
;
797 static INLINE
enum lp_texture_layout
798 llvmpipe_get_texture_tile_layout(const struct llvmpipe_resource
*lpr
,
799 unsigned face_slice
, unsigned level
,
800 unsigned x
, unsigned y
)
803 assert(resource_is_texture(&lpr
->base
));
804 assert(x
< lpr
->tiles_per_row
[level
]);
805 i
= face_slice
* lpr
->tiles_per_image
[level
]
806 + y
* lpr
->tiles_per_row
[level
] + x
;
807 return lpr
->layout
[level
][i
];
812 llvmpipe_set_texture_tile_layout(struct llvmpipe_resource
*lpr
,
813 unsigned face_slice
, unsigned level
,
814 unsigned x
, unsigned y
,
815 enum lp_texture_layout layout
)
818 assert(resource_is_texture(&lpr
->base
));
819 assert(x
< lpr
->tiles_per_row
[level
]);
820 i
= face_slice
* lpr
->tiles_per_image
[level
]
821 + y
* lpr
->tiles_per_row
[level
] + x
;
822 lpr
->layout
[level
][i
] = layout
;
827 * Set the layout mode for all tiles in a particular image.
830 llvmpipe_set_texture_image_layout(struct llvmpipe_resource
*lpr
,
831 unsigned face_slice
, unsigned level
,
832 unsigned width_t
, unsigned height_t
,
833 enum lp_texture_layout layout
)
835 const unsigned start
= face_slice
* lpr
->tiles_per_image
[level
];
838 for (i
= 0; i
< width_t
* height_t
; i
++) {
839 lpr
->layout
[level
][start
+ i
] = layout
;
845 * Allocate storage for a linear or tile texture image (all cube
846 * faces and all 3D slices.
849 alloc_image_data(struct llvmpipe_resource
*lpr
, unsigned level
,
850 enum lp_texture_layout layout
)
855 if (layout
== LP_TEX_LAYOUT_TILED
) {
856 /* tiled data is stored in regular memory */
857 uint buffer_size
= tex_image_size(lpr
, level
, layout
);
858 lpr
->tiled
[level
].data
= align_malloc(buffer_size
, 16);
861 assert(layout
== LP_TEX_LAYOUT_LINEAR
);
863 /* we get the linear memory from the winsys */
864 struct llvmpipe_screen
*screen
= llvmpipe_screen(lpr
->base
.screen
);
865 struct sw_winsys
*winsys
= screen
->winsys
;
867 lpr
->linear
[0].data
=
868 winsys
->displaytarget_map(winsys
, lpr
->dt
,
869 PIPE_TRANSFER_READ_WRITE
);
872 /* not a display target - allocate regular memory */
873 uint buffer_size
= tex_image_size(lpr
, level
, LP_TEX_LAYOUT_LINEAR
);
874 lpr
->linear
[level
].data
= align_malloc(buffer_size
, 16);
882 * Return pointer to texture image data (either linear or tiled layout)
883 * for a particular cube face or 3D texture slice.
885 * \param face_slice the cube face or 3D slice of interest
886 * \param usage one of LP_TEX_USAGE_READ/WRITE_ALL/READ_WRITE
887 * \param layout either LP_TEX_LAYOUT_LINEAR or _TILED or _NONE
890 llvmpipe_get_texture_image(struct llvmpipe_resource
*lpr
,
891 unsigned face_slice
, unsigned level
,
892 enum lp_texture_usage usage
,
893 enum lp_texture_layout layout
)
896 * 'target' refers to the image which we're retrieving (either in
897 * tiled or linear layout).
898 * 'other' refers to the same image but in the other layout. (it may
901 struct llvmpipe_texture_image
*target_img
;
902 struct llvmpipe_texture_image
*other_img
;
905 const unsigned width
= u_minify(lpr
->base
.width0
, level
);
906 const unsigned height
= u_minify(lpr
->base
.height0
, level
);
907 const unsigned width_t
= align(width
, TILE_SIZE
) / TILE_SIZE
;
908 const unsigned height_t
= align(height
, TILE_SIZE
) / TILE_SIZE
;
909 enum lp_texture_layout other_layout
;
910 boolean only_allocate
;
912 assert(layout
== LP_TEX_LAYOUT_NONE
||
913 layout
== LP_TEX_LAYOUT_TILED
||
914 layout
== LP_TEX_LAYOUT_LINEAR
);
916 assert(usage
== LP_TEX_USAGE_READ
||
917 usage
== LP_TEX_USAGE_READ_WRITE
||
918 usage
== LP_TEX_USAGE_WRITE_ALL
);
920 /* check for the special case of layout == LP_TEX_LAYOUT_NONE */
921 if (layout
== LP_TEX_LAYOUT_NONE
) {
922 only_allocate
= TRUE
;
923 layout
= LP_TEX_LAYOUT_TILED
;
926 only_allocate
= FALSE
;
930 assert(lpr
->linear
[level
].data
);
933 /* which is target? which is other? */
934 if (layout
== LP_TEX_LAYOUT_LINEAR
) {
935 target_img
= &lpr
->linear
[level
];
936 other_img
= &lpr
->tiled
[level
];
937 other_layout
= LP_TEX_LAYOUT_TILED
;
940 target_img
= &lpr
->tiled
[level
];
941 other_img
= &lpr
->linear
[level
];
942 other_layout
= LP_TEX_LAYOUT_LINEAR
;
945 target_data
= target_img
->data
;
946 other_data
= other_img
->data
;
949 /* allocate memory for the target image now */
950 alloc_image_data(lpr
, level
, layout
);
951 target_data
= target_img
->data
;
954 if (face_slice
> 0) {
955 unsigned target_offset
, other_offset
;
957 target_offset
= face_slice
* tex_image_face_size(lpr
, level
, layout
);
958 other_offset
= face_slice
* tex_image_face_size(lpr
, level
, other_layout
);
960 target_data
= (uint8_t *) target_data
+ target_offset
;
963 other_data
= (uint8_t *) other_data
+ other_offset
;
968 /* Just allocating tiled memory. Don't initialize it from the
969 * linear data if it exists.
975 /* may need to convert other data to the requested layout */
976 enum lp_texture_layout new_layout
;
979 /* loop over all image tiles, doing layout conversion where needed */
980 for (y
= 0; y
< height_t
; y
++) {
981 for (x
= 0; x
< width_t
; x
++) {
982 enum lp_texture_layout cur_layout
=
983 llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, x
, y
);
986 layout_logic(cur_layout
, layout
, usage
, &new_layout
, &convert
);
989 if (layout
== LP_TEX_LAYOUT_TILED
) {
990 lp_linear_to_tiled(other_data
, target_data
,
991 x
* TILE_SIZE
, y
* TILE_SIZE
,
992 TILE_SIZE
, TILE_SIZE
,
994 lpr
->row_stride
[level
],
995 lpr
->tiles_per_row
[level
]);
998 lp_tiled_to_linear(other_data
, target_data
,
999 x
* TILE_SIZE
, y
* TILE_SIZE
,
1000 TILE_SIZE
, TILE_SIZE
,
1002 lpr
->row_stride
[level
],
1003 lpr
->tiles_per_row
[level
]);
1007 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, x
, y
,
1014 llvmpipe_set_texture_image_layout(lpr
, face_slice
, level
,
1015 width_t
, height_t
, layout
);
1018 assert(target_data
);
1025 * Return pointer to start of a texture image (1D, 2D, 3D, CUBE).
1026 * All cube faces and 3D slices will be converted to the requested
1028 * This is typically used when we're about to sample from a texture.
1031 llvmpipe_get_texture_image_all(struct llvmpipe_resource
*lpr
,
1033 enum lp_texture_usage usage
,
1034 enum lp_texture_layout layout
)
1036 const int slices
= lpr
->num_slices_faces
[level
];
1042 for (slice
= slices
- 1; slice
>= 0; slice
--) {
1043 map
= llvmpipe_get_texture_image(lpr
, slice
, level
, usage
, layout
);
1051 * Get pointer to a linear image (not the tile!) where the tile at (x,y)
1052 * is known to be in linear layout.
1053 * Conversion from tiled to linear will be done if necessary.
1054 * \return pointer to start of image/face (not the tile)
1057 llvmpipe_get_texture_tile_linear(struct llvmpipe_resource
*lpr
,
1058 unsigned face_slice
, unsigned level
,
1059 enum lp_texture_usage usage
,
1060 unsigned x
, unsigned y
)
1062 struct llvmpipe_texture_image
*linear_img
= &lpr
->linear
[level
];
1063 enum lp_texture_layout cur_layout
, new_layout
;
1064 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1066 uint8_t *tiled_image
, *linear_image
;
1068 assert(resource_is_texture(&lpr
->base
));
1069 assert(x
% TILE_SIZE
== 0);
1070 assert(y
% TILE_SIZE
== 0);
1072 if (!linear_img
->data
) {
1073 /* allocate memory for the linear image now */
1074 alloc_image_data(lpr
, level
, LP_TEX_LAYOUT_LINEAR
);
1077 /* compute address of the slice/face of the image that contains the tile */
1078 tiled_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1079 LP_TEX_LAYOUT_TILED
);
1080 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1081 LP_TEX_LAYOUT_LINEAR
);
1083 /* get current tile layout and determine if data conversion is needed */
1084 cur_layout
= llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
);
1086 layout_logic(cur_layout
, LP_TEX_LAYOUT_LINEAR
, usage
,
1087 &new_layout
, &convert
);
1090 lp_tiled_to_linear(tiled_image
, linear_image
,
1091 x
, y
, TILE_SIZE
, TILE_SIZE
, lpr
->base
.format
,
1092 lpr
->row_stride
[level
],
1093 lpr
->tiles_per_row
[level
]);
1096 if (new_layout
!= cur_layout
)
1097 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
, new_layout
);
1099 return linear_image
;
1104 * Get pointer to tiled data for rendering.
1105 * \return pointer to the tiled data at the given tile position
1108 llvmpipe_get_texture_tile(struct llvmpipe_resource
*lpr
,
1109 unsigned face_slice
, unsigned level
,
1110 enum lp_texture_usage usage
,
1111 unsigned x
, unsigned y
)
1113 struct llvmpipe_texture_image
*tiled_img
= &lpr
->tiled
[level
];
1114 enum lp_texture_layout cur_layout
, new_layout
;
1115 const unsigned tx
= x
/ TILE_SIZE
, ty
= y
/ TILE_SIZE
;
1117 uint8_t *tiled_image
, *linear_image
;
1118 unsigned tile_offset
;
1120 assert(x
% TILE_SIZE
== 0);
1121 assert(y
% TILE_SIZE
== 0);
1123 if (!tiled_img
->data
) {
1124 /* allocate memory for the tiled image now */
1125 alloc_image_data(lpr
, level
, LP_TEX_LAYOUT_TILED
);
1128 /* compute address of the slice/face of the image that contains the tile */
1129 tiled_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1130 LP_TEX_LAYOUT_TILED
);
1131 linear_image
= llvmpipe_get_texture_image_address(lpr
, face_slice
, level
,
1132 LP_TEX_LAYOUT_LINEAR
);
1134 /* get current tile layout and see if we need to convert the data */
1135 cur_layout
= llvmpipe_get_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
);
1137 layout_logic(cur_layout
, LP_TEX_LAYOUT_TILED
, usage
, &new_layout
, &convert
);
1139 lp_linear_to_tiled(linear_image
, tiled_image
,
1140 x
, y
, TILE_SIZE
, TILE_SIZE
, lpr
->base
.format
,
1141 lpr
->row_stride
[level
],
1142 lpr
->tiles_per_row
[level
]);
1145 if (new_layout
!= cur_layout
)
1146 llvmpipe_set_texture_tile_layout(lpr
, face_slice
, level
, tx
, ty
, new_layout
);
1148 /* compute, return address of the 64x64 tile */
1149 tile_offset
= (ty
* lpr
->tiles_per_row
[level
] + tx
)
1150 * TILE_SIZE
* TILE_SIZE
* 4;
1152 return (ubyte
*) tiled_image
+ tile_offset
;
1157 llvmpipe_init_screen_resource_funcs(struct pipe_screen
*screen
)
1159 screen
->resource_create
= llvmpipe_resource_create
;
1160 screen
->resource_destroy
= llvmpipe_resource_destroy
;
1161 screen
->resource_from_handle
= llvmpipe_resource_from_handle
;
1162 screen
->resource_get_handle
= llvmpipe_resource_get_handle
;
1163 screen
->user_buffer_create
= llvmpipe_user_buffer_create
;
1165 screen
->get_tex_surface
= llvmpipe_get_tex_surface
;
1166 screen
->tex_surface_destroy
= llvmpipe_tex_surface_destroy
;
1171 llvmpipe_init_context_resource_funcs(struct pipe_context
*pipe
)
1173 pipe
->get_transfer
= llvmpipe_get_transfer
;
1174 pipe
->transfer_destroy
= llvmpipe_transfer_destroy
;
1175 pipe
->transfer_map
= llvmpipe_transfer_map
;
1176 pipe
->transfer_unmap
= llvmpipe_transfer_unmap
;
1177 pipe
->is_resource_referenced
= llvmpipe_is_resource_referenced
;
1179 pipe
->transfer_flush_region
= u_default_transfer_flush_region
;
1180 pipe
->transfer_inline_write
= u_default_transfer_inline_write
;