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"
47 /* Simple, maximally packed layout.
50 static unsigned minify( unsigned d
)
56 /* Conventional allocation path for non-display textures:
59 softpipe_texture_layout(struct pipe_screen
*screen
,
60 struct softpipe_texture
* spt
)
62 struct pipe_texture
*pt
= &spt
->base
;
64 unsigned width
= pt
->width
[0];
65 unsigned height
= pt
->height
[0];
66 unsigned depth
= pt
->depth
[0];
68 unsigned buffer_size
= 0;
70 for (level
= 0; level
<= pt
->last_level
; level
++) {
71 pt
->width
[level
] = width
;
72 pt
->height
[level
] = height
;
73 pt
->depth
[level
] = depth
;
74 pt
->nblocksx
[level
] = pf_get_nblocksx(&pt
->block
, width
);
75 pt
->nblocksy
[level
] = pf_get_nblocksy(&pt
->block
, height
);
76 spt
->stride
[level
] = pt
->nblocksx
[level
]*pt
->block
.size
;
78 spt
->level_offset
[level
] = buffer_size
;
80 buffer_size
+= (pt
->nblocksy
[level
] *
81 ((pt
->target
== PIPE_TEXTURE_CUBE
) ? 6 : depth
) *
84 width
= minify(width
);
85 height
= minify(height
);
86 depth
= minify(depth
);
89 spt
->buffer
= screen
->buffer_create(screen
, 32,
90 PIPE_BUFFER_USAGE_PIXEL
,
93 return spt
->buffer
!= NULL
;
97 softpipe_displaytarget_layout(struct pipe_screen
*screen
,
98 struct softpipe_texture
* spt
)
100 unsigned usage
= (PIPE_BUFFER_USAGE_CPU_READ_WRITE
|
101 PIPE_BUFFER_USAGE_GPU_READ_WRITE
);
103 spt
->base
.nblocksx
[0] = pf_get_nblocksx(&spt
->base
.block
, spt
->base
.width
[0]);
104 spt
->base
.nblocksy
[0] = pf_get_nblocksy(&spt
->base
.block
, spt
->base
.height
[0]);
106 spt
->buffer
= screen
->surface_buffer_create( screen
,
113 return spt
->buffer
!= NULL
;
120 static struct pipe_texture
*
121 softpipe_texture_create(struct pipe_screen
*screen
,
122 const struct pipe_texture
*templat
)
124 struct softpipe_texture
*spt
= CALLOC_STRUCT(softpipe_texture
);
128 spt
->base
= *templat
;
129 pipe_reference_init(&spt
->base
.reference
, 1);
130 spt
->base
.screen
= screen
;
132 if (spt
->base
.tex_usage
& PIPE_TEXTURE_USAGE_DISPLAY_TARGET
) {
133 if (!softpipe_displaytarget_layout(screen
, spt
))
137 if (!softpipe_texture_layout(screen
, spt
))
149 static struct pipe_texture
*
150 softpipe_texture_blanket(struct pipe_screen
* screen
,
151 const struct pipe_texture
*base
,
152 const unsigned *stride
,
153 struct pipe_buffer
*buffer
)
155 struct softpipe_texture
*spt
;
158 /* Only supports one type */
159 if (base
->target
!= PIPE_TEXTURE_2D
||
160 base
->last_level
!= 0 ||
161 base
->depth
[0] != 1) {
165 spt
= CALLOC_STRUCT(softpipe_texture
);
170 pipe_reference_init(&spt
->base
.reference
, 1);
171 spt
->base
.screen
= screen
;
172 spt
->base
.nblocksx
[0] = pf_get_nblocksx(&spt
->base
.block
, spt
->base
.width
[0]);
173 spt
->base
.nblocksy
[0] = pf_get_nblocksy(&spt
->base
.block
, spt
->base
.height
[0]);
174 spt
->stride
[0] = stride
[0];
176 pipe_buffer_reference(&spt
->buffer
, buffer
);
183 softpipe_texture_destroy(struct pipe_texture
*pt
)
185 struct softpipe_texture
*spt
= softpipe_texture(pt
);
187 pipe_buffer_reference(&spt
->buffer
, NULL
);
192 static struct pipe_surface
*
193 softpipe_get_tex_surface(struct pipe_screen
*screen
,
194 struct pipe_texture
*pt
,
195 unsigned face
, unsigned level
, unsigned zslice
,
198 struct softpipe_texture
*spt
= softpipe_texture(pt
);
199 struct pipe_surface
*ps
;
201 assert(level
<= pt
->last_level
);
203 ps
= CALLOC_STRUCT(pipe_surface
);
205 pipe_reference_init(&ps
->reference
, 1);
206 pipe_texture_reference(&ps
->texture
, pt
);
207 ps
->format
= pt
->format
;
208 ps
->width
= pt
->width
[level
];
209 ps
->height
= pt
->height
[level
];
210 ps
->offset
= spt
->level_offset
[level
];
213 /* Because we are softpipe, anything that the state tracker
214 * thought was going to be done with the GPU will actually get
215 * done with the CPU. Let's adjust the flags to take that into
218 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_WRITE
) {
219 /* GPU_WRITE means "render" and that can involve reads (blending) */
220 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_WRITE
| PIPE_BUFFER_USAGE_CPU_READ
;
223 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_READ
)
224 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_READ
;
226 if (ps
->usage
& (PIPE_BUFFER_USAGE_CPU_WRITE
|
227 PIPE_BUFFER_USAGE_GPU_WRITE
)) {
228 /* Mark the surface as dirty. The tile cache will look for this. */
229 spt
->modified
= TRUE
;
236 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
237 ps
->offset
+= face
* pt
->nblocksy
[level
] * spt
->stride
[level
];
239 else if (pt
->target
== PIPE_TEXTURE_3D
) {
240 ps
->offset
+= zslice
* pt
->nblocksy
[level
] * spt
->stride
[level
];
252 softpipe_tex_surface_destroy(struct pipe_surface
*surf
)
254 /* Effectively do the texture_update work here - if texture images
255 * needed post-processing to put them into hardware layout, this is
256 * where it would happen. For softpipe, nothing to do.
258 assert(surf
->texture
);
259 pipe_texture_reference(&surf
->texture
, NULL
);
264 static struct pipe_transfer
*
265 softpipe_get_tex_transfer(struct pipe_screen
*screen
,
266 struct pipe_texture
*texture
,
267 unsigned face
, unsigned level
, unsigned zslice
,
268 enum pipe_transfer_usage usage
,
269 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
271 struct softpipe_texture
*sptex
= softpipe_texture(texture
);
272 struct softpipe_transfer
*spt
;
275 assert(level
<= texture
->last_level
);
277 spt
= CALLOC_STRUCT(softpipe_transfer
);
279 struct pipe_transfer
*pt
= &spt
->base
;
280 pipe_texture_reference(&pt
->texture
, texture
);
281 pt
->format
= texture
->format
;
282 pt
->block
= texture
->block
;
287 pt
->nblocksx
= texture
->nblocksx
[level
];
288 pt
->nblocksy
= texture
->nblocksy
[level
];
289 pt
->stride
= sptex
->stride
[level
];
295 spt
->offset
= sptex
->level_offset
[level
];
297 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
298 spt
->offset
+= face
* pt
->nblocksy
* pt
->stride
;
300 else if (texture
->target
== PIPE_TEXTURE_3D
) {
301 spt
->offset
+= zslice
* pt
->nblocksy
* pt
->stride
;
314 softpipe_tex_transfer_destroy(struct pipe_transfer
*transfer
)
316 /* Effectively do the texture_update work here - if texture images
317 * needed post-processing to put them into hardware layout, this is
318 * where it would happen. For softpipe, nothing to do.
320 assert (transfer
->texture
);
321 pipe_texture_reference(&transfer
->texture
, NULL
);
327 softpipe_transfer_map( struct pipe_screen
*screen
,
328 struct pipe_transfer
*transfer
)
330 ubyte
*map
, *xfer_map
;
331 struct softpipe_texture
*spt
;
334 assert(transfer
->texture
);
335 spt
= softpipe_texture(transfer
->texture
);
337 if (transfer
->usage
!= PIPE_TRANSFER_READ
) {
338 flags
|= PIPE_BUFFER_USAGE_CPU_WRITE
;
341 if (transfer
->usage
!= PIPE_TRANSFER_WRITE
) {
342 flags
|= PIPE_BUFFER_USAGE_CPU_READ
;
345 map
= pipe_buffer_map(screen
, spt
->buffer
, flags
);
349 /* May want to different things here depending on read/write nature
352 if (transfer
->texture
&& transfer
->usage
!= PIPE_TRANSFER_READ
)
354 /* Do something to notify sharing contexts of a texture change.
355 * In softpipe, that would mean flushing the texture cache.
357 softpipe_screen(screen
)->timestamp
++;
360 xfer_map
= map
+ softpipe_transfer(transfer
)->offset
+
361 transfer
->y
/ transfer
->block
.height
* transfer
->stride
+
362 transfer
->x
/ transfer
->block
.width
* transfer
->block
.size
;
363 /*printf("map = %p xfer map = %p\n", map, xfer_map);*/
369 softpipe_transfer_unmap(struct pipe_screen
*screen
,
370 struct pipe_transfer
*transfer
)
372 struct softpipe_texture
*spt
;
374 assert(transfer
->texture
);
375 spt
= softpipe_texture(transfer
->texture
);
377 pipe_buffer_unmap( screen
, spt
->buffer
);
382 softpipe_init_texture_funcs(struct softpipe_context
*sp
)
388 softpipe_init_screen_texture_funcs(struct pipe_screen
*screen
)
390 screen
->texture_create
= softpipe_texture_create
;
391 screen
->texture_blanket
= softpipe_texture_blanket
;
392 screen
->texture_destroy
= softpipe_texture_destroy
;
394 screen
->get_tex_surface
= softpipe_get_tex_surface
;
395 screen
->tex_surface_destroy
= softpipe_tex_surface_destroy
;
397 screen
->get_tex_transfer
= softpipe_get_tex_transfer
;
398 screen
->tex_transfer_destroy
= softpipe_tex_transfer_destroy
;
399 screen
->transfer_map
= softpipe_transfer_map
;
400 screen
->transfer_unmap
= softpipe_transfer_unmap
;