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.
51 static unsigned minify( unsigned d
)
57 /* Conventional allocation path for non-display textures:
60 softpipe_texture_layout(struct pipe_screen
*screen
,
61 struct softpipe_texture
* spt
)
63 struct pipe_texture
*pt
= &spt
->base
;
65 unsigned width
= pt
->width
[0];
66 unsigned height
= pt
->height
[0];
67 unsigned depth
= pt
->depth
[0];
69 unsigned buffer_size
= 0;
71 for (level
= 0; level
<= pt
->last_level
; level
++) {
72 pt
->width
[level
] = width
;
73 pt
->height
[level
] = height
;
74 pt
->depth
[level
] = depth
;
75 pt
->nblocksx
[level
] = pf_get_nblocksx(&pt
->block
, width
);
76 pt
->nblocksy
[level
] = pf_get_nblocksy(&pt
->block
, height
);
77 spt
->stride
[level
] = pt
->nblocksx
[level
]*pt
->block
.size
;
79 spt
->level_offset
[level
] = buffer_size
;
81 buffer_size
+= (pt
->nblocksy
[level
] *
82 ((pt
->target
== PIPE_TEXTURE_CUBE
) ? 6 : depth
) *
85 width
= minify(width
);
86 height
= minify(height
);
87 depth
= minify(depth
);
90 spt
->buffer
= screen
->buffer_create(screen
, 32,
91 PIPE_BUFFER_USAGE_PIXEL
,
94 return spt
->buffer
!= NULL
;
98 softpipe_displaytarget_layout(struct pipe_screen
*screen
,
99 struct softpipe_texture
* spt
)
101 unsigned usage
= (PIPE_BUFFER_USAGE_CPU_READ_WRITE
|
102 PIPE_BUFFER_USAGE_GPU_READ_WRITE
);
104 spt
->base
.nblocksx
[0] = pf_get_nblocksx(&spt
->base
.block
, spt
->base
.width
[0]);
105 spt
->base
.nblocksy
[0] = pf_get_nblocksy(&spt
->base
.block
, spt
->base
.height
[0]);
107 spt
->buffer
= screen
->surface_buffer_create( screen
,
114 return spt
->buffer
!= NULL
;
121 static struct pipe_texture
*
122 softpipe_texture_create(struct pipe_screen
*screen
,
123 const struct pipe_texture
*templat
)
125 struct softpipe_texture
*spt
= CALLOC_STRUCT(softpipe_texture
);
129 spt
->base
= *templat
;
130 pipe_reference_init(&spt
->base
.reference
, 1);
131 spt
->base
.screen
= screen
;
133 if (spt
->base
.tex_usage
& (PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
134 PIPE_TEXTURE_USAGE_PRIMARY
)) {
135 if (!softpipe_displaytarget_layout(screen
, spt
))
139 if (!softpipe_texture_layout(screen
, spt
))
151 static struct pipe_texture
*
152 softpipe_texture_blanket(struct pipe_screen
* screen
,
153 const struct pipe_texture
*base
,
154 const unsigned *stride
,
155 struct pipe_buffer
*buffer
)
157 struct softpipe_texture
*spt
;
160 /* Only supports one type */
161 if (base
->target
!= PIPE_TEXTURE_2D
||
162 base
->last_level
!= 0 ||
163 base
->depth
[0] != 1) {
167 spt
= CALLOC_STRUCT(softpipe_texture
);
172 pipe_reference_init(&spt
->base
.reference
, 1);
173 spt
->base
.screen
= screen
;
174 spt
->base
.nblocksx
[0] = pf_get_nblocksx(&spt
->base
.block
, spt
->base
.width
[0]);
175 spt
->base
.nblocksy
[0] = pf_get_nblocksy(&spt
->base
.block
, spt
->base
.height
[0]);
176 spt
->stride
[0] = stride
[0];
178 pipe_buffer_reference(&spt
->buffer
, buffer
);
185 softpipe_texture_destroy(struct pipe_texture
*pt
)
187 struct softpipe_texture
*spt
= softpipe_texture(pt
);
189 pipe_buffer_reference(&spt
->buffer
, NULL
);
194 static struct pipe_surface
*
195 softpipe_get_tex_surface(struct pipe_screen
*screen
,
196 struct pipe_texture
*pt
,
197 unsigned face
, unsigned level
, unsigned zslice
,
200 struct softpipe_texture
*spt
= softpipe_texture(pt
);
201 struct pipe_surface
*ps
;
203 assert(level
<= pt
->last_level
);
205 ps
= CALLOC_STRUCT(pipe_surface
);
207 pipe_reference_init(&ps
->reference
, 1);
208 pipe_texture_reference(&ps
->texture
, pt
);
209 ps
->format
= pt
->format
;
210 ps
->width
= pt
->width
[level
];
211 ps
->height
= pt
->height
[level
];
212 ps
->offset
= spt
->level_offset
[level
];
215 /* Because we are softpipe, anything that the state tracker
216 * thought was going to be done with the GPU will actually get
217 * done with the CPU. Let's adjust the flags to take that into
220 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_WRITE
) {
221 /* GPU_WRITE means "render" and that can involve reads (blending) */
222 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_WRITE
| PIPE_BUFFER_USAGE_CPU_READ
;
225 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_READ
)
226 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_READ
;
232 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
233 ps
->offset
+= face
* pt
->nblocksy
[level
] * spt
->stride
[level
];
235 else if (pt
->target
== PIPE_TEXTURE_3D
) {
236 ps
->offset
+= zslice
* pt
->nblocksy
[level
] * spt
->stride
[level
];
248 softpipe_tex_surface_destroy(struct pipe_surface
*surf
)
250 /* Effectively do the texture_update work here - if texture images
251 * needed post-processing to put them into hardware layout, this is
252 * where it would happen. For softpipe, nothing to do.
254 assert(surf
->texture
);
255 pipe_texture_reference(&surf
->texture
, NULL
);
260 static struct pipe_transfer
*
261 softpipe_get_tex_transfer(struct pipe_screen
*screen
,
262 struct pipe_texture
*texture
,
263 unsigned face
, unsigned level
, unsigned zslice
,
264 enum pipe_transfer_usage usage
,
265 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
267 struct softpipe_texture
*sptex
= softpipe_texture(texture
);
268 struct softpipe_transfer
*spt
;
271 assert(level
<= texture
->last_level
);
273 spt
= CALLOC_STRUCT(softpipe_transfer
);
275 struct pipe_transfer
*pt
= &spt
->base
;
276 pipe_texture_reference(&pt
->texture
, texture
);
277 pt
->format
= texture
->format
;
278 pt
->block
= texture
->block
;
283 pt
->nblocksx
= texture
->nblocksx
[level
];
284 pt
->nblocksy
= texture
->nblocksy
[level
];
285 pt
->stride
= sptex
->stride
[level
];
291 spt
->offset
= sptex
->level_offset
[level
];
293 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
294 spt
->offset
+= face
* pt
->nblocksy
* pt
->stride
;
296 else if (texture
->target
== PIPE_TEXTURE_3D
) {
297 spt
->offset
+= zslice
* pt
->nblocksy
* pt
->stride
;
310 softpipe_tex_transfer_destroy(struct pipe_transfer
*transfer
)
312 /* Effectively do the texture_update work here - if texture images
313 * needed post-processing to put them into hardware layout, this is
314 * where it would happen. For softpipe, nothing to do.
316 assert (transfer
->texture
);
317 pipe_texture_reference(&transfer
->texture
, NULL
);
323 softpipe_transfer_map( struct pipe_screen
*screen
,
324 struct pipe_transfer
*transfer
)
326 ubyte
*map
, *xfer_map
;
327 struct softpipe_texture
*spt
;
330 assert(transfer
->texture
);
331 spt
= softpipe_texture(transfer
->texture
);
333 if (transfer
->usage
!= PIPE_TRANSFER_READ
) {
334 flags
|= PIPE_BUFFER_USAGE_CPU_WRITE
;
337 if (transfer
->usage
!= PIPE_TRANSFER_WRITE
) {
338 flags
|= PIPE_BUFFER_USAGE_CPU_READ
;
341 map
= pipe_buffer_map(screen
, spt
->buffer
, flags
);
345 /* May want to different things here depending on read/write nature
348 if (transfer
->texture
&& transfer
->usage
!= PIPE_TRANSFER_READ
)
350 /* Do something to notify sharing contexts of a texture change.
351 * In softpipe, that would mean flushing the texture cache.
353 softpipe_screen(screen
)->timestamp
++;
356 xfer_map
= map
+ softpipe_transfer(transfer
)->offset
+
357 transfer
->y
/ transfer
->block
.height
* transfer
->stride
+
358 transfer
->x
/ transfer
->block
.width
* transfer
->block
.size
;
359 /*printf("map = %p xfer map = %p\n", map, xfer_map);*/
365 softpipe_transfer_unmap(struct pipe_screen
*screen
,
366 struct pipe_transfer
*transfer
)
368 struct softpipe_texture
*spt
;
370 assert(transfer
->texture
);
371 spt
= softpipe_texture(transfer
->texture
);
373 pipe_buffer_unmap( screen
, spt
->buffer
);
375 if (transfer
->usage
!= PIPE_TRANSFER_READ
) {
376 /* Mark the texture as dirty to expire the tile caches. */
377 spt
->modified
= TRUE
;
383 softpipe_init_texture_funcs(struct softpipe_context
*sp
)
389 softpipe_init_screen_texture_funcs(struct pipe_screen
*screen
)
391 screen
->texture_create
= softpipe_texture_create
;
392 screen
->texture_blanket
= softpipe_texture_blanket
;
393 screen
->texture_destroy
= softpipe_texture_destroy
;
395 screen
->get_tex_surface
= softpipe_get_tex_surface
;
396 screen
->tex_surface_destroy
= softpipe_tex_surface_destroy
;
398 screen
->get_tex_transfer
= softpipe_get_tex_transfer
;
399 screen
->tex_transfer_destroy
= softpipe_tex_transfer_destroy
;
400 screen
->transfer_map
= softpipe_transfer_map
;
401 screen
->transfer_unmap
= softpipe_transfer_unmap
;
406 softpipe_get_texture_buffer( struct pipe_texture
*texture
,
407 struct pipe_buffer
**buf
,
410 struct softpipe_texture
*tex
= (struct softpipe_texture
*)texture
;
415 pipe_buffer_reference(buf
, tex
->buffer
);
418 *stride
= tex
->stride
[0];