1 /**************************************************************************
3 * Copyright 2006 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 * Keith Whitwell <keithw@vmware.com>
30 * Michel Dänzer <daenzer@vmware.com>
33 #include "pipe/p_defines.h"
34 #include "util/u_inlines.h"
36 #include "util/u_format.h"
37 #include "util/u_math.h"
38 #include "util/u_memory.h"
39 #include "util/u_transfer.h"
41 #include "sp_context.h"
43 #include "sp_texture.h"
44 #include "sp_screen.h"
46 #include "state_tracker/sw_winsys.h"
50 * Conventional allocation path for non-display textures:
51 * Use a simple, maximally packed layout.
54 softpipe_resource_layout(struct pipe_screen
*screen
,
55 struct softpipe_resource
*spr
,
58 struct pipe_resource
*pt
= &spr
->base
;
60 unsigned width
= pt
->width0
;
61 unsigned height
= pt
->height0
;
62 unsigned depth
= pt
->depth0
;
63 uint64_t buffer_size
= 0;
65 for (level
= 0; level
<= pt
->last_level
; level
++) {
66 unsigned slices
, nblocksy
;
68 nblocksy
= util_format_get_nblocksy(pt
->format
, height
);
70 if (pt
->target
== PIPE_TEXTURE_CUBE
)
71 assert(pt
->array_size
== 6);
73 if (pt
->target
== PIPE_TEXTURE_3D
)
76 slices
= pt
->array_size
;
78 spr
->stride
[level
] = util_format_get_stride(pt
->format
, width
);
80 spr
->level_offset
[level
] = buffer_size
;
82 /* if row_stride * height > SP_MAX_TEXTURE_SIZE */
83 if ((uint64_t)spr
->stride
[level
] * nblocksy
> SP_MAX_TEXTURE_SIZE
) {
88 spr
->img_stride
[level
] = spr
->stride
[level
] * nblocksy
;
90 buffer_size
+= (uint64_t) spr
->img_stride
[level
] * slices
;
92 width
= u_minify(width
, 1);
93 height
= u_minify(height
, 1);
94 depth
= u_minify(depth
, 1);
97 if (buffer_size
> SP_MAX_TEXTURE_SIZE
)
101 spr
->data
= align_malloc(buffer_size
, 64);
102 return spr
->data
!= NULL
;
111 * Check the size of the texture specified by 'res'.
112 * \return TRUE if OK, FALSE if too large.
115 softpipe_can_create_resource(struct pipe_screen
*screen
,
116 const struct pipe_resource
*res
)
118 struct softpipe_resource spr
;
119 memset(&spr
, 0, sizeof(spr
));
121 return softpipe_resource_layout(screen
, &spr
, FALSE
);
126 * Texture layout for simple color buffers.
129 softpipe_displaytarget_layout(struct pipe_screen
*screen
,
130 struct softpipe_resource
*spr
,
131 const void *map_front_private
)
133 struct sw_winsys
*winsys
= softpipe_screen(screen
)->winsys
;
135 /* Round up the surface size to a multiple of the tile size?
137 spr
->dt
= winsys
->displaytarget_create(winsys
,
146 return spr
->dt
!= NULL
;
151 * Create new pipe_resource given the template information.
153 static struct pipe_resource
*
154 softpipe_resource_create_front(struct pipe_screen
*screen
,
155 const struct pipe_resource
*templat
,
156 const void *map_front_private
)
158 struct softpipe_resource
*spr
= CALLOC_STRUCT(softpipe_resource
);
162 assert(templat
->format
!= PIPE_FORMAT_NONE
);
164 spr
->base
= *templat
;
165 pipe_reference_init(&spr
->base
.reference
, 1);
166 spr
->base
.screen
= screen
;
168 spr
->pot
= (util_is_power_of_two(templat
->width0
) &&
169 util_is_power_of_two(templat
->height0
) &&
170 util_is_power_of_two(templat
->depth0
));
172 if (spr
->base
.bind
& (PIPE_BIND_DISPLAY_TARGET
|
175 if (!softpipe_displaytarget_layout(screen
, spr
, map_front_private
))
179 if (!softpipe_resource_layout(screen
, spr
, TRUE
))
190 static struct pipe_resource
*
191 softpipe_resource_create(struct pipe_screen
*screen
,
192 const struct pipe_resource
*templat
)
194 return softpipe_resource_create_front(screen
, templat
, NULL
);
198 softpipe_resource_destroy(struct pipe_screen
*pscreen
,
199 struct pipe_resource
*pt
)
201 struct softpipe_screen
*screen
= softpipe_screen(pscreen
);
202 struct softpipe_resource
*spr
= softpipe_resource(pt
);
206 struct sw_winsys
*winsys
= screen
->winsys
;
207 winsys
->displaytarget_destroy(winsys
, spr
->dt
);
209 else if (!spr
->userBuffer
) {
210 /* regular texture */
211 align_free(spr
->data
);
218 static struct pipe_resource
*
219 softpipe_resource_from_handle(struct pipe_screen
*screen
,
220 const struct pipe_resource
*templat
,
221 struct winsys_handle
*whandle
,
224 struct sw_winsys
*winsys
= softpipe_screen(screen
)->winsys
;
225 struct softpipe_resource
*spr
= CALLOC_STRUCT(softpipe_resource
);
229 spr
->base
= *templat
;
230 pipe_reference_init(&spr
->base
.reference
, 1);
231 spr
->base
.screen
= screen
;
233 spr
->pot
= (util_is_power_of_two(templat
->width0
) &&
234 util_is_power_of_two(templat
->height0
) &&
235 util_is_power_of_two(templat
->depth0
));
237 spr
->dt
= winsys
->displaytarget_from_handle(winsys
,
253 softpipe_resource_get_handle(struct pipe_screen
*screen
,
254 struct pipe_resource
*pt
,
255 struct winsys_handle
*whandle
,
258 struct sw_winsys
*winsys
= softpipe_screen(screen
)->winsys
;
259 struct softpipe_resource
*spr
= softpipe_resource(pt
);
265 return winsys
->displaytarget_get_handle(winsys
, spr
->dt
, whandle
);
270 * Helper function to compute offset (in bytes) for a particular
271 * texture level/face/slice from the start of the buffer.
274 softpipe_get_tex_image_offset(const struct softpipe_resource
*spr
,
275 unsigned level
, unsigned layer
)
277 unsigned offset
= spr
->level_offset
[level
];
279 offset
+= layer
* spr
->img_stride
[level
];
286 * Get a pipe_surface "view" into a texture resource.
288 static struct pipe_surface
*
289 softpipe_create_surface(struct pipe_context
*pipe
,
290 struct pipe_resource
*pt
,
291 const struct pipe_surface
*surf_tmpl
)
293 struct pipe_surface
*ps
;
295 ps
= CALLOC_STRUCT(pipe_surface
);
297 pipe_reference_init(&ps
->reference
, 1);
298 pipe_resource_reference(&ps
->texture
, pt
);
300 ps
->format
= surf_tmpl
->format
;
301 if (pt
->target
!= PIPE_BUFFER
) {
302 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
303 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
304 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
305 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
306 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
307 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
308 if (ps
->u
.tex
.first_layer
!= ps
->u
.tex
.last_layer
) {
309 debug_printf("creating surface with multiple layers, rendering to first layer only\n");
313 /* setting width as number of elements should get us correct renderbuffer width */
314 ps
->width
= surf_tmpl
->u
.buf
.last_element
- surf_tmpl
->u
.buf
.first_element
+ 1;
315 ps
->height
= pt
->height0
;
316 ps
->u
.buf
.first_element
= surf_tmpl
->u
.buf
.first_element
;
317 ps
->u
.buf
.last_element
= surf_tmpl
->u
.buf
.last_element
;
318 assert(ps
->u
.buf
.first_element
<= ps
->u
.buf
.last_element
);
319 assert(ps
->u
.buf
.last_element
< ps
->width
);
327 * Free a pipe_surface which was created with softpipe_create_surface().
330 softpipe_surface_destroy(struct pipe_context
*pipe
,
331 struct pipe_surface
*surf
)
333 /* Effectively do the texture_update work here - if texture images
334 * needed post-processing to put them into hardware layout, this is
335 * where it would happen. For softpipe, nothing to do.
337 assert(surf
->texture
);
338 pipe_resource_reference(&surf
->texture
, NULL
);
344 * Geta pipe_transfer object which is used for moving data in/out of
346 * \param pipe rendering context
347 * \param resource the resource to transfer in/out of
348 * \param level which mipmap level
349 * \param usage bitmask of PIPE_TRANSFER_x flags
350 * \param box the 1D/2D/3D region of interest
353 softpipe_transfer_map(struct pipe_context
*pipe
,
354 struct pipe_resource
*resource
,
357 const struct pipe_box
*box
,
358 struct pipe_transfer
**transfer
)
360 struct sw_winsys
*winsys
= softpipe_screen(pipe
->screen
)->winsys
;
361 struct softpipe_resource
*spr
= softpipe_resource(resource
);
362 struct softpipe_transfer
*spt
;
363 struct pipe_transfer
*pt
;
364 enum pipe_format format
= resource
->format
;
368 assert(level
<= resource
->last_level
);
370 /* make sure the requested region is in the image bounds */
371 assert(box
->x
+ box
->width
<= (int) u_minify(resource
->width0
, level
));
372 if (resource
->target
== PIPE_TEXTURE_1D_ARRAY
) {
373 assert(box
->y
+ box
->height
<= (int) resource
->array_size
);
376 assert(box
->y
+ box
->height
<= (int) u_minify(resource
->height0
, level
));
377 if (resource
->target
== PIPE_TEXTURE_2D_ARRAY
) {
378 assert(box
->z
+ box
->depth
<= (int) resource
->array_size
);
380 else if (resource
->target
== PIPE_TEXTURE_CUBE
) {
383 else if (resource
->target
== PIPE_TEXTURE_CUBE_ARRAY
) {
384 assert(box
->z
<= (int) resource
->array_size
);
387 assert(box
->z
+ box
->depth
<= (int) u_minify(resource
->depth0
, level
));
392 * Transfers, like other pipe operations, must happen in order, so flush the
393 * context if necessary.
395 if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
396 boolean read_only
= !(usage
& PIPE_TRANSFER_WRITE
);
397 boolean do_not_block
= !!(usage
& PIPE_TRANSFER_DONTBLOCK
);
398 if (!softpipe_flush_resource(pipe
, resource
,
399 level
, box
->depth
> 1 ? -1 : box
->z
,
402 TRUE
, /* cpu_access */
405 * It would have blocked, but state tracker requested no to.
407 assert(do_not_block
);
412 spt
= CALLOC_STRUCT(softpipe_transfer
);
418 pipe_resource_reference(&pt
->resource
, resource
);
422 pt
->stride
= spr
->stride
[level
];
423 pt
->layer_stride
= spr
->img_stride
[level
];
425 spt
->offset
= softpipe_get_tex_image_offset(spr
, level
, box
->z
);
428 box
->y
/ util_format_get_blockheight(format
) * spt
->base
.stride
+
429 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
431 /* resources backed by display target treated specially:
434 map
= winsys
->displaytarget_map(winsys
, spr
->dt
, usage
);
441 pipe_resource_reference(&pt
->resource
, NULL
);
447 return map
+ spt
->offset
;
452 * Unmap memory mapping for given pipe_transfer object.
455 softpipe_transfer_unmap(struct pipe_context
*pipe
,
456 struct pipe_transfer
*transfer
)
458 struct softpipe_resource
*spr
;
460 assert(transfer
->resource
);
461 spr
= softpipe_resource(transfer
->resource
);
465 struct sw_winsys
*winsys
= softpipe_screen(pipe
->screen
)->winsys
;
466 winsys
->displaytarget_unmap(winsys
, spr
->dt
);
469 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
470 /* Mark the texture as dirty to expire the tile caches. */
474 pipe_resource_reference(&transfer
->resource
, NULL
);
479 * Create buffer which wraps user-space data.
481 struct pipe_resource
*
482 softpipe_user_buffer_create(struct pipe_screen
*screen
,
487 struct softpipe_resource
*spr
;
489 spr
= CALLOC_STRUCT(softpipe_resource
);
493 pipe_reference_init(&spr
->base
.reference
, 1);
494 spr
->base
.screen
= screen
;
495 spr
->base
.format
= PIPE_FORMAT_R8_UNORM
; /* ?? */
496 spr
->base
.bind
= bind_flags
;
497 spr
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
499 spr
->base
.width0
= bytes
;
500 spr
->base
.height0
= 1;
501 spr
->base
.depth0
= 1;
502 spr
->base
.array_size
= 1;
503 spr
->userBuffer
= TRUE
;
511 softpipe_init_texture_funcs(struct pipe_context
*pipe
)
513 pipe
->transfer_map
= softpipe_transfer_map
;
514 pipe
->transfer_unmap
= softpipe_transfer_unmap
;
516 pipe
->transfer_flush_region
= u_default_transfer_flush_region
;
517 pipe
->transfer_inline_write
= u_default_transfer_inline_write
;
519 pipe
->create_surface
= softpipe_create_surface
;
520 pipe
->surface_destroy
= softpipe_surface_destroy
;
525 softpipe_init_screen_texture_funcs(struct pipe_screen
*screen
)
527 screen
->resource_create
= softpipe_resource_create
;
528 screen
->resource_create_front
= softpipe_resource_create_front
;
529 screen
->resource_destroy
= softpipe_resource_destroy
;
530 screen
->resource_from_handle
= softpipe_resource_from_handle
;
531 screen
->resource_get_handle
= softpipe_resource_get_handle
;
532 screen
->can_create_resource
= softpipe_can_create_resource
;