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 "lp_context.h"
42 #include "lp_texture.h"
43 #include "lp_tex_cache.h"
44 #include "lp_screen.h"
45 #include "lp_winsys.h"
48 /* Simple, maximally packed layout.
52 /* Conventional allocation path for non-display textures:
55 llvmpipe_texture_layout(struct llvmpipe_screen
*screen
,
56 struct llvmpipe_texture
* lpt
)
58 struct pipe_texture
*pt
= &lpt
->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 pf_get_block(lpt
->base
.format
, &lpt
->base
.block
);
68 for (level
= 0; level
<= pt
->last_level
; level
++) {
69 unsigned nblocksx
, nblocksy
;
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
);
77 /* Allocate storage for whole quads. This is particularly important
78 * for depth surfaces, which are currently stored in a swizzled format. */
79 nblocksx
= pf_get_nblocksx(&pt
->block
, align(width
, 2));
80 nblocksy
= pf_get_nblocksy(&pt
->block
, align(height
, 2));
82 lpt
->stride
[level
] = align(nblocksx
*pt
->block
.size
, 16);
84 lpt
->level_offset
[level
] = buffer_size
;
86 buffer_size
+= (nblocksy
*
87 ((pt
->target
== PIPE_TEXTURE_CUBE
) ? 6 : depth
) *
90 width
= minify(width
);
91 height
= minify(height
);
92 depth
= minify(depth
);
95 lpt
->data
= align_malloc(buffer_size
, 16);
97 return lpt
->data
!= NULL
;
101 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
102 struct llvmpipe_texture
* lpt
)
104 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
106 pf_get_block(lpt
->base
.format
, &lpt
->base
.block
);
107 lpt
->base
.nblocksx
[0] = pf_get_nblocksx(&lpt
->base
.block
, lpt
->base
.width
[0]);
108 lpt
->base
.nblocksy
[0] = pf_get_nblocksy(&lpt
->base
.block
, lpt
->base
.height
[0]);
110 lpt
->dt
= winsys
->displaytarget_create(winsys
,
117 return lpt
->dt
!= NULL
;
124 static struct pipe_texture
*
125 llvmpipe_texture_create(struct pipe_screen
*_screen
,
126 const struct pipe_texture
*templat
)
128 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
129 struct llvmpipe_texture
*lpt
= CALLOC_STRUCT(llvmpipe_texture
);
133 lpt
->base
= *templat
;
134 pipe_reference_init(&lpt
->base
.reference
, 1);
135 lpt
->base
.screen
= &screen
->base
;
137 /* XXX: The xlib state tracker is brain-dead and will request
138 * PIPE_FORMAT_Z16_UNORM no matter how much we tell it we don't support it.
140 if(lpt
->base
.format
== PIPE_FORMAT_Z16_UNORM
)
141 lpt
->base
.format
= PIPE_FORMAT_Z32_UNORM
;
143 if (lpt
->base
.tex_usage
& (PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
144 PIPE_TEXTURE_USAGE_PRIMARY
)) {
145 if (!llvmpipe_displaytarget_layout(screen
, lpt
))
149 if (!llvmpipe_texture_layout(screen
, lpt
))
161 static struct pipe_texture
*
162 llvmpipe_texture_blanket(struct pipe_screen
* screen
,
163 const struct pipe_texture
*base
,
164 const unsigned *stride
,
165 struct pipe_buffer
*buffer
)
169 struct llvmpipe_texture
*lpt
;
172 /* Only supports one type */
173 if (base
->target
!= PIPE_TEXTURE_2D
||
174 base
->last_level
!= 0 ||
175 base
->depth
[0] != 1) {
179 lpt
= CALLOC_STRUCT(llvmpipe_texture
);
184 pipe_reference_init(&lpt
->base
.reference
, 1);
185 lpt
->base
.screen
= screen
;
186 lpt
->base
.nblocksx
[0] = pf_get_nblocksx(&lpt
->base
.block
, lpt
->base
.width
[0]);
187 lpt
->base
.nblocksy
[0] = pf_get_nblocksy(&lpt
->base
.block
, lpt
->base
.height
[0]);
188 lpt
->stride
[0] = stride
[0];
190 pipe_buffer_reference(&lpt
->buffer
, buffer
);
200 llvmpipe_texture_destroy(struct pipe_texture
*pt
)
202 struct llvmpipe_screen
*screen
= llvmpipe_screen(pt
->screen
);
203 struct llvmpipe_texture
*lpt
= llvmpipe_texture(pt
);
206 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
207 winsys
->displaytarget_destroy(winsys
, lpt
->dt
);
210 align_free(lpt
->data
);
216 static struct pipe_surface
*
217 llvmpipe_get_tex_surface(struct pipe_screen
*screen
,
218 struct pipe_texture
*pt
,
219 unsigned face
, unsigned level
, unsigned zslice
,
222 struct llvmpipe_texture
*lpt
= llvmpipe_texture(pt
);
223 struct pipe_surface
*ps
;
225 assert(level
<= pt
->last_level
);
227 ps
= CALLOC_STRUCT(pipe_surface
);
229 pipe_reference_init(&ps
->reference
, 1);
230 pipe_texture_reference(&ps
->texture
, pt
);
231 ps
->format
= pt
->format
;
232 ps
->width
= pt
->width
[level
];
233 ps
->height
= pt
->height
[level
];
234 ps
->offset
= lpt
->level_offset
[level
];
237 /* Because we are llvmpipe, anything that the state tracker
238 * thought was going to be done with the GPU will actually get
239 * done with the CPU. Let's adjust the flags to take that into
242 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_WRITE
) {
243 /* GPU_WRITE means "render" and that can involve reads (blending) */
244 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_WRITE
| PIPE_BUFFER_USAGE_CPU_READ
;
247 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_READ
)
248 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_READ
;
250 if (ps
->usage
& (PIPE_BUFFER_USAGE_CPU_WRITE
|
251 PIPE_BUFFER_USAGE_GPU_WRITE
)) {
252 /* Mark the surface as dirty. The tile cache will look for this. */
254 llvmpipe_screen(screen
)->timestamp
++;
261 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
262 ps
->offset
+= face
* pt
->nblocksy
[level
] * lpt
->stride
[level
];
264 else if (pt
->target
== PIPE_TEXTURE_3D
) {
265 ps
->offset
+= zslice
* pt
->nblocksy
[level
] * lpt
->stride
[level
];
277 llvmpipe_tex_surface_destroy(struct pipe_surface
*surf
)
279 /* Effectively do the texture_update work here - if texture images
280 * needed post-processing to put them into hardware layout, this is
281 * where it would happen. For llvmpipe, nothing to do.
283 assert(surf
->texture
);
284 pipe_texture_reference(&surf
->texture
, NULL
);
289 static struct pipe_transfer
*
290 llvmpipe_get_tex_transfer(struct pipe_screen
*screen
,
291 struct pipe_texture
*texture
,
292 unsigned face
, unsigned level
, unsigned zslice
,
293 enum pipe_transfer_usage usage
,
294 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
296 struct llvmpipe_texture
*lptex
= llvmpipe_texture(texture
);
297 struct llvmpipe_transfer
*lpt
;
300 assert(level
<= texture
->last_level
);
302 lpt
= CALLOC_STRUCT(llvmpipe_transfer
);
304 struct pipe_transfer
*pt
= &lpt
->base
;
305 pipe_texture_reference(&pt
->texture
, texture
);
306 pt
->format
= texture
->format
;
307 pt
->block
= texture
->block
;
312 pt
->nblocksx
= texture
->nblocksx
[level
];
313 pt
->nblocksy
= texture
->nblocksy
[level
];
314 pt
->stride
= lptex
->stride
[level
];
320 lpt
->offset
= lptex
->level_offset
[level
];
322 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
323 lpt
->offset
+= face
* pt
->nblocksy
* pt
->stride
;
325 else if (texture
->target
== PIPE_TEXTURE_3D
) {
326 lpt
->offset
+= zslice
* pt
->nblocksy
* pt
->stride
;
339 llvmpipe_tex_transfer_destroy(struct pipe_transfer
*transfer
)
341 /* Effectively do the texture_update work here - if texture images
342 * needed post-processing to put them into hardware layout, this is
343 * where it would happen. For llvmpipe, nothing to do.
345 assert (transfer
->texture
);
346 pipe_texture_reference(&transfer
->texture
, NULL
);
352 llvmpipe_transfer_map( struct pipe_screen
*_screen
,
353 struct pipe_transfer
*transfer
)
355 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
356 ubyte
*map
, *xfer_map
;
357 struct llvmpipe_texture
*lpt
;
359 assert(transfer
->texture
);
360 lpt
= llvmpipe_texture(transfer
->texture
);
363 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
365 map
= winsys
->displaytarget_map(winsys
, lpt
->dt
,
366 pipe_transfer_buffer_flags(transfer
));
373 /* May want to different things here depending on read/write nature
376 if (transfer
->texture
&& (transfer
->usage
& PIPE_TRANSFER_WRITE
))
378 /* Do something to notify sharing contexts of a texture change.
379 * In llvmpipe, that would mean flushing the texture cache.
384 xfer_map
= map
+ llvmpipe_transfer(transfer
)->offset
+
385 transfer
->y
/ transfer
->block
.height
* transfer
->stride
+
386 transfer
->x
/ transfer
->block
.width
* transfer
->block
.size
;
387 /*printf("map = %p xfer map = %p\n", map, xfer_map);*/
393 llvmpipe_transfer_unmap(struct pipe_screen
*_screen
,
394 struct pipe_transfer
*transfer
)
396 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
397 struct llvmpipe_texture
*lpt
;
399 assert(transfer
->texture
);
400 lpt
= llvmpipe_texture(transfer
->texture
);
403 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
404 winsys
->displaytarget_unmap(winsys
, lpt
->dt
);
410 llvmpipe_init_texture_funcs(struct llvmpipe_context
*lp
)
416 llvmpipe_init_screen_texture_funcs(struct pipe_screen
*screen
)
418 screen
->texture_create
= llvmpipe_texture_create
;
419 screen
->texture_blanket
= llvmpipe_texture_blanket
;
420 screen
->texture_destroy
= llvmpipe_texture_destroy
;
422 screen
->get_tex_surface
= llvmpipe_get_tex_surface
;
423 screen
->tex_surface_destroy
= llvmpipe_tex_surface_destroy
;
425 screen
->get_tex_transfer
= llvmpipe_get_tex_transfer
;
426 screen
->tex_transfer_destroy
= llvmpipe_tex_transfer_destroy
;
427 screen
->transfer_map
= llvmpipe_transfer_map
;
428 screen
->transfer_unmap
= llvmpipe_transfer_unmap
;