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>
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
)
57 struct pipe_resource
*pt
= &spr
->base
;
59 unsigned width
= pt
->width0
;
60 unsigned height
= pt
->height0
;
61 unsigned depth
= pt
->depth0
;
62 unsigned buffer_size
= 0;
64 for (level
= 0; level
<= pt
->last_level
; level
++) {
67 if (pt
->target
== PIPE_TEXTURE_CUBE
)
69 else if (pt
->target
== PIPE_TEXTURE_3D
)
72 slices
= pt
->array_size
;
74 spr
->stride
[level
] = util_format_get_stride(pt
->format
, width
);
76 spr
->level_offset
[level
] = buffer_size
;
78 buffer_size
+= (util_format_get_nblocksy(pt
->format
, height
) *
79 slices
* spr
->stride
[level
]);
81 width
= u_minify(width
, 1);
82 height
= u_minify(height
, 1);
83 depth
= u_minify(depth
, 1);
86 spr
->data
= align_malloc(buffer_size
, 16);
88 return spr
->data
!= NULL
;
93 * Texture layout for simple color buffers.
96 softpipe_displaytarget_layout(struct pipe_screen
*screen
,
97 struct softpipe_resource
*spr
)
99 struct sw_winsys
*winsys
= softpipe_screen(screen
)->winsys
;
101 /* Round up the surface size to a multiple of the tile size?
103 spr
->dt
= winsys
->displaytarget_create(winsys
,
111 return spr
->dt
!= NULL
;
116 * Create new pipe_resource given the template information.
118 static struct pipe_resource
*
119 softpipe_resource_create(struct pipe_screen
*screen
,
120 const struct pipe_resource
*templat
)
122 struct softpipe_resource
*spr
= CALLOC_STRUCT(softpipe_resource
);
126 assert(templat
->format
!= PIPE_FORMAT_NONE
);
128 spr
->base
= *templat
;
129 pipe_reference_init(&spr
->base
.reference
, 1);
130 spr
->base
.screen
= screen
;
132 spr
->pot
= (util_is_power_of_two(templat
->width0
) &&
133 util_is_power_of_two(templat
->height0
) &&
134 util_is_power_of_two(templat
->depth0
));
136 if (spr
->base
.bind
& (PIPE_BIND_DISPLAY_TARGET
|
139 if (!softpipe_displaytarget_layout(screen
, spr
))
143 if (!softpipe_resource_layout(screen
, spr
))
156 softpipe_resource_destroy(struct pipe_screen
*pscreen
,
157 struct pipe_resource
*pt
)
159 struct softpipe_screen
*screen
= softpipe_screen(pscreen
);
160 struct softpipe_resource
*spr
= softpipe_resource(pt
);
164 struct sw_winsys
*winsys
= screen
->winsys
;
165 winsys
->displaytarget_destroy(winsys
, spr
->dt
);
167 else if (!spr
->userBuffer
) {
168 /* regular texture */
169 align_free(spr
->data
);
176 static struct pipe_resource
*
177 softpipe_resource_from_handle(struct pipe_screen
*screen
,
178 const struct pipe_resource
*templat
,
179 struct winsys_handle
*whandle
)
181 struct sw_winsys
*winsys
= softpipe_screen(screen
)->winsys
;
182 struct softpipe_resource
*spr
= CALLOC_STRUCT(softpipe_resource
);
186 spr
->base
= *templat
;
187 pipe_reference_init(&spr
->base
.reference
, 1);
188 spr
->base
.screen
= screen
;
190 spr
->pot
= (util_is_power_of_two(templat
->width0
) &&
191 util_is_power_of_two(templat
->height0
) &&
192 util_is_power_of_two(templat
->depth0
));
194 spr
->dt
= winsys
->displaytarget_from_handle(winsys
,
210 softpipe_resource_get_handle(struct pipe_screen
*screen
,
211 struct pipe_resource
*pt
,
212 struct winsys_handle
*whandle
)
214 struct sw_winsys
*winsys
= softpipe_screen(screen
)->winsys
;
215 struct softpipe_resource
*spr
= softpipe_resource(pt
);
221 return winsys
->displaytarget_get_handle(winsys
, spr
->dt
, whandle
);
226 * Helper function to compute offset (in bytes) for a particular
227 * texture level/face/slice from the start of the buffer.
230 sp_get_tex_image_offset(const struct softpipe_resource
*spr
,
231 unsigned level
, unsigned layer
)
233 const unsigned hgt
= u_minify(spr
->base
.height0
, level
);
234 const unsigned nblocksy
= util_format_get_nblocksy(spr
->base
.format
, hgt
);
235 unsigned offset
= spr
->level_offset
[level
];
237 if (spr
->base
.target
== PIPE_TEXTURE_CUBE
||
238 spr
->base
.target
== PIPE_TEXTURE_3D
||
239 spr
->base
.target
== PIPE_TEXTURE_2D_ARRAY
) {
240 offset
+= layer
* nblocksy
* spr
->stride
[level
];
242 else if (spr
->base
.target
== PIPE_TEXTURE_1D_ARRAY
) {
243 offset
+= layer
* spr
->stride
[level
];
254 * Get a pipe_surface "view" into a texture resource.
256 static struct pipe_surface
*
257 softpipe_create_surface(struct pipe_context
*pipe
,
258 struct pipe_resource
*pt
,
259 const struct pipe_surface
*surf_tmpl
)
261 struct pipe_surface
*ps
;
262 unsigned level
= surf_tmpl
->u
.tex
.level
;
264 assert(level
<= pt
->last_level
);
265 assert(surf_tmpl
->u
.tex
.first_layer
== surf_tmpl
->u
.tex
.last_layer
);
267 ps
= CALLOC_STRUCT(pipe_surface
);
269 pipe_reference_init(&ps
->reference
, 1);
270 pipe_resource_reference(&ps
->texture
, pt
);
272 ps
->format
= surf_tmpl
->format
;
273 ps
->width
= u_minify(pt
->width0
, level
);
274 ps
->height
= u_minify(pt
->height0
, level
);
275 ps
->usage
= surf_tmpl
->usage
;
277 ps
->u
.tex
.level
= level
;
278 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
279 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
286 * Free a pipe_surface which was created with softpipe_create_surface().
289 softpipe_surface_destroy(struct pipe_context
*pipe
,
290 struct pipe_surface
*surf
)
292 /* Effectively do the texture_update work here - if texture images
293 * needed post-processing to put them into hardware layout, this is
294 * where it would happen. For softpipe, nothing to do.
296 assert(surf
->texture
);
297 pipe_resource_reference(&surf
->texture
, NULL
);
303 * Geta pipe_transfer object which is used for moving data in/out of
305 * \param pipe rendering context
306 * \param resource the resource to transfer in/out of
307 * \param level which mipmap level
308 * \param usage bitmask of PIPE_TRANSFER_x flags
309 * \param box the 1D/2D/3D region of interest
311 static struct pipe_transfer
*
312 softpipe_get_transfer(struct pipe_context
*pipe
,
313 struct pipe_resource
*resource
,
316 const struct pipe_box
*box
)
318 struct softpipe_resource
*spr
= softpipe_resource(resource
);
319 struct softpipe_transfer
*spt
;
322 assert(level
<= resource
->last_level
);
324 /* make sure the requested region is in the image bounds */
325 assert(box
->x
+ box
->width
<= u_minify(resource
->width0
, level
));
326 if (resource
->target
== PIPE_TEXTURE_1D_ARRAY
) {
327 assert(box
->y
+ box
->height
<= resource
->array_size
);
330 assert(box
->y
+ box
->height
<= u_minify(resource
->height0
, level
));
331 if (resource
->target
== PIPE_TEXTURE_2D_ARRAY
) {
332 assert(box
->z
+ box
->depth
<= resource
->array_size
);
334 else if (resource
->target
== PIPE_TEXTURE_CUBE
) {
338 assert(box
->z
+ box
->depth
<= (u_minify(resource
->depth0
, level
)));
343 * Transfers, like other pipe operations, must happen in order, so flush the
344 * context if necessary.
346 if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
347 boolean read_only
= !(usage
& PIPE_TRANSFER_WRITE
);
348 boolean do_not_block
= !!(usage
& PIPE_TRANSFER_DONTBLOCK
);
349 if (!softpipe_flush_resource(pipe
, resource
,
350 level
, box
->depth
> 1 ? -1 : box
->z
,
353 TRUE
, /* cpu_access */
356 * It would have blocked, but state tracker requested no to.
358 assert(do_not_block
);
363 spt
= CALLOC_STRUCT(softpipe_transfer
);
365 struct pipe_transfer
*pt
= &spt
->base
;
366 enum pipe_format format
= resource
->format
;
367 const unsigned hgt
= u_minify(spr
->base
.height0
, level
);
368 const unsigned nblocksy
= util_format_get_nblocksy(format
, hgt
);
370 pipe_resource_reference(&pt
->resource
, resource
);
374 pt
->stride
= spr
->stride
[level
];
375 pt
->layer_stride
= pt
->stride
* nblocksy
;
377 spt
->offset
= sp_get_tex_image_offset(spr
, level
, box
->z
);
380 box
->y
/ util_format_get_blockheight(format
) * spt
->base
.stride
+
381 box
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
390 * Free a pipe_transfer object which was created with
391 * softpipe_get_transfer().
394 softpipe_transfer_destroy(struct pipe_context
*pipe
,
395 struct pipe_transfer
*transfer
)
397 pipe_resource_reference(&transfer
->resource
, NULL
);
403 * Create memory mapping for given pipe_transfer object.
406 softpipe_transfer_map(struct pipe_context
*pipe
,
407 struct pipe_transfer
*transfer
)
409 struct softpipe_transfer
*spt
= softpipe_transfer(transfer
);
410 struct softpipe_resource
*spr
= softpipe_resource(transfer
->resource
);
411 struct sw_winsys
*winsys
= softpipe_screen(pipe
->screen
)->winsys
;
414 /* resources backed by display target treated specially:
417 map
= winsys
->displaytarget_map(winsys
, spr
->dt
, transfer
->usage
);
426 return map
+ spt
->offset
;
431 * Unmap memory mapping for given pipe_transfer object.
434 softpipe_transfer_unmap(struct pipe_context
*pipe
,
435 struct pipe_transfer
*transfer
)
437 struct softpipe_resource
*spr
;
439 assert(transfer
->resource
);
440 spr
= softpipe_resource(transfer
->resource
);
444 struct sw_winsys
*winsys
= softpipe_screen(pipe
->screen
)->winsys
;
445 winsys
->displaytarget_unmap(winsys
, spr
->dt
);
448 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
449 /* Mark the texture as dirty to expire the tile caches. */
455 * Create buffer which wraps user-space data.
457 static struct pipe_resource
*
458 softpipe_user_buffer_create(struct pipe_screen
*screen
,
463 struct softpipe_resource
*spr
;
465 spr
= CALLOC_STRUCT(softpipe_resource
);
469 pipe_reference_init(&spr
->base
.reference
, 1);
470 spr
->base
.screen
= screen
;
471 spr
->base
.format
= PIPE_FORMAT_R8_UNORM
; /* ?? */
472 spr
->base
.bind
= bind_flags
;
473 spr
->base
.usage
= PIPE_USAGE_IMMUTABLE
;
475 spr
->base
.width0
= bytes
;
476 spr
->base
.height0
= 1;
477 spr
->base
.depth0
= 1;
478 spr
->base
.array_size
= 1;
479 spr
->userBuffer
= TRUE
;
487 softpipe_init_texture_funcs(struct pipe_context
*pipe
)
489 pipe
->get_transfer
= softpipe_get_transfer
;
490 pipe
->transfer_destroy
= softpipe_transfer_destroy
;
491 pipe
->transfer_map
= softpipe_transfer_map
;
492 pipe
->transfer_unmap
= softpipe_transfer_unmap
;
494 pipe
->transfer_flush_region
= u_default_transfer_flush_region
;
495 pipe
->transfer_inline_write
= u_default_transfer_inline_write
;
497 pipe
->create_surface
= softpipe_create_surface
;
498 pipe
->surface_destroy
= softpipe_surface_destroy
;
503 softpipe_init_screen_texture_funcs(struct pipe_screen
*screen
)
505 screen
->resource_create
= softpipe_resource_create
;
506 screen
->resource_destroy
= softpipe_resource_destroy
;
507 screen
->resource_from_handle
= softpipe_resource_from_handle
;
508 screen
->resource_get_handle
= softpipe_resource_get_handle
;
509 screen
->user_buffer_create
= softpipe_user_buffer_create
;