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_context.h"
34 #include "pipe/p_defines.h"
35 #include "pipe/p_inlines.h"
36 #include "pipe/internal/p_winsys_screen.h"
37 #include "util/u_math.h"
38 #include "util/u_memory.h"
40 #include "sp_context.h"
42 #include "sp_texture.h"
43 #include "sp_tile_cache.h"
44 #include "sp_screen.h"
45 #include "sp_winsys.h"
48 /* Simple, maximally packed layout.
52 /* Conventional allocation path for non-display textures:
55 softpipe_texture_layout(struct pipe_screen
*screen
,
56 struct softpipe_texture
* spt
)
58 struct pipe_texture
*pt
= &spt
->base
;
60 unsigned width
= pt
->width
[0];
61 unsigned height
= pt
->height
[0];
62 unsigned depth
= pt
->depth
[0];
64 unsigned buffer_size
= 0;
66 for (level
= 0; level
<= pt
->last_level
; level
++) {
67 pt
->width
[level
] = width
;
68 pt
->height
[level
] = height
;
69 pt
->depth
[level
] = depth
;
70 pt
->nblocksx
[level
] = pf_get_nblocksx(&pt
->block
, width
);
71 pt
->nblocksy
[level
] = pf_get_nblocksy(&pt
->block
, height
);
72 spt
->stride
[level
] = pt
->nblocksx
[level
]*pt
->block
.size
;
74 spt
->level_offset
[level
] = buffer_size
;
76 buffer_size
+= (pt
->nblocksy
[level
] *
77 ((pt
->target
== PIPE_TEXTURE_CUBE
) ? 6 : depth
) *
80 width
= minify(width
);
81 height
= minify(height
);
82 depth
= minify(depth
);
85 spt
->buffer
= screen
->buffer_create(screen
, 32,
86 PIPE_BUFFER_USAGE_PIXEL
,
89 return spt
->buffer
!= NULL
;
93 softpipe_displaytarget_layout(struct pipe_screen
*screen
,
94 struct softpipe_texture
* spt
)
96 unsigned usage
= (PIPE_BUFFER_USAGE_CPU_READ_WRITE
|
97 PIPE_BUFFER_USAGE_GPU_READ_WRITE
);
98 unsigned tex_usage
= spt
->base
.tex_usage
;
100 spt
->base
.nblocksx
[0] = pf_get_nblocksx(&spt
->base
.block
, spt
->base
.width
[0]);
101 spt
->base
.nblocksy
[0] = pf_get_nblocksy(&spt
->base
.block
, spt
->base
.height
[0]);
103 spt
->buffer
= screen
->surface_buffer_create( screen
,
111 return spt
->buffer
!= NULL
;
118 static struct pipe_texture
*
119 softpipe_texture_create(struct pipe_screen
*screen
,
120 const struct pipe_texture
*templat
)
122 struct softpipe_texture
*spt
= CALLOC_STRUCT(softpipe_texture
);
126 spt
->base
= *templat
;
127 pipe_reference_init(&spt
->base
.reference
, 1);
128 spt
->base
.screen
= screen
;
130 if (spt
->base
.tex_usage
& (PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
131 PIPE_TEXTURE_USAGE_PRIMARY
)) {
132 if (!softpipe_displaytarget_layout(screen
, spt
))
136 if (!softpipe_texture_layout(screen
, spt
))
148 static struct pipe_texture
*
149 softpipe_texture_blanket(struct pipe_screen
* screen
,
150 const struct pipe_texture
*base
,
151 const unsigned *stride
,
152 struct pipe_buffer
*buffer
)
154 struct softpipe_texture
*spt
;
157 /* Only supports one type */
158 if (base
->target
!= PIPE_TEXTURE_2D
||
159 base
->last_level
!= 0 ||
160 base
->depth
[0] != 1) {
164 spt
= CALLOC_STRUCT(softpipe_texture
);
169 pipe_reference_init(&spt
->base
.reference
, 1);
170 spt
->base
.screen
= screen
;
171 spt
->base
.nblocksx
[0] = pf_get_nblocksx(&spt
->base
.block
, spt
->base
.width
[0]);
172 spt
->base
.nblocksy
[0] = pf_get_nblocksy(&spt
->base
.block
, spt
->base
.height
[0]);
173 spt
->stride
[0] = stride
[0];
175 pipe_buffer_reference(&spt
->buffer
, buffer
);
182 softpipe_texture_destroy(struct pipe_texture
*pt
)
184 struct softpipe_texture
*spt
= softpipe_texture(pt
);
186 pipe_buffer_reference(&spt
->buffer
, NULL
);
191 static struct pipe_surface
*
192 softpipe_get_tex_surface(struct pipe_screen
*screen
,
193 struct pipe_texture
*pt
,
194 unsigned face
, unsigned level
, unsigned zslice
,
197 struct softpipe_texture
*spt
= softpipe_texture(pt
);
198 struct pipe_surface
*ps
;
200 assert(level
<= pt
->last_level
);
202 ps
= CALLOC_STRUCT(pipe_surface
);
204 pipe_reference_init(&ps
->reference
, 1);
205 pipe_texture_reference(&ps
->texture
, pt
);
206 ps
->format
= pt
->format
;
207 ps
->width
= pt
->width
[level
];
208 ps
->height
= pt
->height
[level
];
209 ps
->offset
= spt
->level_offset
[level
];
212 /* Because we are softpipe, anything that the state tracker
213 * thought was going to be done with the GPU will actually get
214 * done with the CPU. Let's adjust the flags to take that into
217 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_WRITE
) {
218 /* GPU_WRITE means "render" and that can involve reads (blending) */
219 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_WRITE
| PIPE_BUFFER_USAGE_CPU_READ
;
222 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_READ
)
223 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_READ
;
229 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
230 ps
->offset
+= face
* pt
->nblocksy
[level
] * spt
->stride
[level
];
232 else if (pt
->target
== PIPE_TEXTURE_3D
) {
233 ps
->offset
+= zslice
* pt
->nblocksy
[level
] * spt
->stride
[level
];
245 softpipe_tex_surface_destroy(struct pipe_surface
*surf
)
247 /* Effectively do the texture_update work here - if texture images
248 * needed post-processing to put them into hardware layout, this is
249 * where it would happen. For softpipe, nothing to do.
251 assert(surf
->texture
);
252 pipe_texture_reference(&surf
->texture
, NULL
);
257 static struct pipe_transfer
*
258 softpipe_get_tex_transfer(struct pipe_screen
*screen
,
259 struct pipe_texture
*texture
,
260 unsigned face
, unsigned level
, unsigned zslice
,
261 enum pipe_transfer_usage usage
,
262 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
264 struct softpipe_texture
*sptex
= softpipe_texture(texture
);
265 struct softpipe_transfer
*spt
;
268 assert(level
<= texture
->last_level
);
270 spt
= CALLOC_STRUCT(softpipe_transfer
);
272 struct pipe_transfer
*pt
= &spt
->base
;
273 pipe_texture_reference(&pt
->texture
, texture
);
274 pt
->format
= texture
->format
;
275 pt
->block
= texture
->block
;
280 pt
->nblocksx
= texture
->nblocksx
[level
];
281 pt
->nblocksy
= texture
->nblocksy
[level
];
282 pt
->stride
= sptex
->stride
[level
];
288 spt
->offset
= sptex
->level_offset
[level
];
290 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
291 spt
->offset
+= face
* pt
->nblocksy
* pt
->stride
;
293 else if (texture
->target
== PIPE_TEXTURE_3D
) {
294 spt
->offset
+= zslice
* pt
->nblocksy
* pt
->stride
;
307 softpipe_tex_transfer_destroy(struct pipe_transfer
*transfer
)
309 /* Effectively do the texture_update work here - if texture images
310 * needed post-processing to put them into hardware layout, this is
311 * where it would happen. For softpipe, nothing to do.
313 assert (transfer
->texture
);
314 pipe_texture_reference(&transfer
->texture
, NULL
);
320 softpipe_transfer_map( struct pipe_screen
*screen
,
321 struct pipe_transfer
*transfer
)
323 ubyte
*map
, *xfer_map
;
324 struct softpipe_texture
*spt
;
327 assert(transfer
->texture
);
328 spt
= softpipe_texture(transfer
->texture
);
330 if (transfer
->usage
!= PIPE_TRANSFER_READ
) {
331 flags
|= PIPE_BUFFER_USAGE_CPU_WRITE
;
334 if (transfer
->usage
!= PIPE_TRANSFER_WRITE
) {
335 flags
|= PIPE_BUFFER_USAGE_CPU_READ
;
338 map
= pipe_buffer_map(screen
, spt
->buffer
, flags
);
342 /* May want to different things here depending on read/write nature
345 if (transfer
->texture
&& transfer
->usage
!= PIPE_TRANSFER_READ
)
347 /* Do something to notify sharing contexts of a texture change.
348 * In softpipe, that would mean flushing the texture cache.
350 softpipe_screen(screen
)->timestamp
++;
353 xfer_map
= map
+ softpipe_transfer(transfer
)->offset
+
354 transfer
->y
/ transfer
->block
.height
* transfer
->stride
+
355 transfer
->x
/ transfer
->block
.width
* transfer
->block
.size
;
356 /*printf("map = %p xfer map = %p\n", map, xfer_map);*/
362 softpipe_transfer_unmap(struct pipe_screen
*screen
,
363 struct pipe_transfer
*transfer
)
365 struct softpipe_texture
*spt
;
367 assert(transfer
->texture
);
368 spt
= softpipe_texture(transfer
->texture
);
370 pipe_buffer_unmap( screen
, spt
->buffer
);
372 if (transfer
->usage
!= PIPE_TRANSFER_READ
) {
373 /* Mark the texture as dirty to expire the tile caches. */
374 spt
->modified
= TRUE
;
380 softpipe_init_texture_funcs(struct softpipe_context
*sp
)
386 softpipe_init_screen_texture_funcs(struct pipe_screen
*screen
)
388 screen
->texture_create
= softpipe_texture_create
;
389 screen
->texture_blanket
= softpipe_texture_blanket
;
390 screen
->texture_destroy
= softpipe_texture_destroy
;
392 screen
->get_tex_surface
= softpipe_get_tex_surface
;
393 screen
->tex_surface_destroy
= softpipe_tex_surface_destroy
;
395 screen
->get_tex_transfer
= softpipe_get_tex_transfer
;
396 screen
->tex_transfer_destroy
= softpipe_tex_transfer_destroy
;
397 screen
->transfer_map
= softpipe_transfer_map
;
398 screen
->transfer_unmap
= softpipe_transfer_unmap
;
403 softpipe_get_texture_buffer( struct pipe_texture
*texture
,
404 struct pipe_buffer
**buf
,
407 struct softpipe_texture
*tex
= (struct softpipe_texture
*)texture
;
412 pipe_buffer_reference(buf
, tex
->buffer
);
415 *stride
= tex
->stride
[0];