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.
51 /* Conventional allocation path for non-display textures:
54 llvmpipe_texture_layout(struct llvmpipe_screen
*screen
,
55 struct llvmpipe_texture
* lpt
)
57 struct pipe_texture
*pt
= &lpt
->base
;
59 unsigned width
= pt
->width0
;
60 unsigned height
= pt
->height0
;
61 unsigned depth
= pt
->depth0
;
63 unsigned buffer_size
= 0;
65 for (level
= 0; level
<= pt
->last_level
; level
++) {
66 unsigned nblocksx
, nblocksy
;
68 /* Allocate storage for whole quads. This is particularly important
69 * for depth surfaces, which are currently stored in a swizzled format. */
70 nblocksx
= pf_get_nblocksx(pt
->format
, align(width
, 2));
71 nblocksy
= pf_get_nblocksy(pt
->format
, align(height
, 2));
73 lpt
->stride
[level
] = align(nblocksx
* pf_get_blocksize(pt
->format
), 16);
75 lpt
->level_offset
[level
] = buffer_size
;
77 buffer_size
+= (nblocksy
*
78 ((pt
->target
== PIPE_TEXTURE_CUBE
) ? 6 : depth
) *
81 width
= u_minify(width
, 1);
82 height
= u_minify(height
, 1);
83 depth
= u_minify(depth
, 1);
86 lpt
->data
= align_malloc(buffer_size
, 16);
88 return lpt
->data
!= NULL
;
92 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
93 struct llvmpipe_texture
* lpt
)
95 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
97 lpt
->dt
= winsys
->displaytarget_create(winsys
,
104 return lpt
->dt
!= NULL
;
111 static struct pipe_texture
*
112 llvmpipe_texture_create(struct pipe_screen
*_screen
,
113 const struct pipe_texture
*templat
)
115 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
116 struct llvmpipe_texture
*lpt
= CALLOC_STRUCT(llvmpipe_texture
);
120 lpt
->base
= *templat
;
121 pipe_reference_init(&lpt
->base
.reference
, 1);
122 lpt
->base
.screen
= &screen
->base
;
124 /* XXX: The xlib state tracker is brain-dead and will request
125 * PIPE_FORMAT_Z16_UNORM no matter how much we tell it we don't support it.
127 if(lpt
->base
.format
== PIPE_FORMAT_Z16_UNORM
)
128 lpt
->base
.format
= PIPE_FORMAT_Z32_UNORM
;
130 if (lpt
->base
.tex_usage
& (PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
131 PIPE_TEXTURE_USAGE_PRIMARY
)) {
132 if (!llvmpipe_displaytarget_layout(screen
, lpt
))
136 if (!llvmpipe_texture_layout(screen
, lpt
))
148 static struct pipe_texture
*
149 llvmpipe_texture_blanket(struct pipe_screen
* screen
,
150 const struct pipe_texture
*base
,
151 const unsigned *stride
,
152 struct pipe_buffer
*buffer
)
156 struct llvmpipe_texture
*lpt
;
159 /* Only supports one type */
160 if (base
->target
!= PIPE_TEXTURE_2D
||
161 base
->last_level
!= 0 ||
166 lpt
= CALLOC_STRUCT(llvmpipe_texture
);
171 pipe_reference_init(&lpt
->base
.reference
, 1);
172 lpt
->base
.screen
= screen
;
173 lpt
->stride
[0] = stride
[0];
175 pipe_buffer_reference(&lpt
->buffer
, buffer
);
185 llvmpipe_texture_destroy(struct pipe_texture
*pt
)
187 struct llvmpipe_screen
*screen
= llvmpipe_screen(pt
->screen
);
188 struct llvmpipe_texture
*lpt
= llvmpipe_texture(pt
);
191 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
192 winsys
->displaytarget_destroy(winsys
, lpt
->dt
);
195 align_free(lpt
->data
);
201 static struct pipe_surface
*
202 llvmpipe_get_tex_surface(struct pipe_screen
*screen
,
203 struct pipe_texture
*pt
,
204 unsigned face
, unsigned level
, unsigned zslice
,
207 struct llvmpipe_texture
*lpt
= llvmpipe_texture(pt
);
208 struct pipe_surface
*ps
;
210 assert(level
<= pt
->last_level
);
212 ps
= CALLOC_STRUCT(pipe_surface
);
214 pipe_reference_init(&ps
->reference
, 1);
215 pipe_texture_reference(&ps
->texture
, pt
);
216 ps
->format
= pt
->format
;
217 ps
->width
= u_minify(pt
->width0
, level
);
218 ps
->height
= u_minify(pt
->height0
, level
);
219 ps
->offset
= lpt
->level_offset
[level
];
222 /* Because we are llvmpipe, anything that the state tracker
223 * thought was going to be done with the GPU will actually get
224 * done with the CPU. Let's adjust the flags to take that into
227 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_WRITE
) {
228 /* GPU_WRITE means "render" and that can involve reads (blending) */
229 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_WRITE
| PIPE_BUFFER_USAGE_CPU_READ
;
232 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_READ
)
233 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_READ
;
235 if (ps
->usage
& (PIPE_BUFFER_USAGE_CPU_WRITE
|
236 PIPE_BUFFER_USAGE_GPU_WRITE
)) {
237 /* Mark the surface as dirty. The tile cache will look for this. */
239 llvmpipe_screen(screen
)->timestamp
++;
246 /* XXX shouldn't that rather be
247 tex_height = align(ps->height, 2);
248 to account for alignment done in llvmpipe_texture_layout ?
250 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
251 unsigned tex_height
= ps
->height
;
252 ps
->offset
+= face
* pf_get_nblocksy(pt
->format
, tex_height
) * lpt
->stride
[level
];
254 else if (pt
->target
== PIPE_TEXTURE_3D
) {
255 unsigned tex_height
= ps
->height
;
256 ps
->offset
+= zslice
* pf_get_nblocksy(pt
->format
, tex_height
) * lpt
->stride
[level
];
268 llvmpipe_tex_surface_destroy(struct pipe_surface
*surf
)
270 /* Effectively do the texture_update work here - if texture images
271 * needed post-processing to put them into hardware layout, this is
272 * where it would happen. For llvmpipe, nothing to do.
274 assert(surf
->texture
);
275 pipe_texture_reference(&surf
->texture
, NULL
);
280 static struct pipe_transfer
*
281 llvmpipe_get_tex_transfer(struct pipe_screen
*screen
,
282 struct pipe_texture
*texture
,
283 unsigned face
, unsigned level
, unsigned zslice
,
284 enum pipe_transfer_usage usage
,
285 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
287 struct llvmpipe_texture
*lptex
= llvmpipe_texture(texture
);
288 struct llvmpipe_transfer
*lpt
;
291 assert(level
<= texture
->last_level
);
293 lpt
= CALLOC_STRUCT(llvmpipe_transfer
);
295 struct pipe_transfer
*pt
= &lpt
->base
;
296 pipe_texture_reference(&pt
->texture
, texture
);
301 pt
->stride
= lptex
->stride
[level
];
307 lpt
->offset
= lptex
->level_offset
[level
];
309 /* XXX shouldn't that rather be
310 tex_height = align(u_minify(texture->height0, level), 2)
311 to account for alignment done in llvmpipe_texture_layout ?
313 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
314 unsigned tex_height
= u_minify(texture
->height0
, level
);
315 lpt
->offset
+= face
* pf_get_nblocksy(texture
->format
, tex_height
) * pt
->stride
;
317 else if (texture
->target
== PIPE_TEXTURE_3D
) {
318 unsigned tex_height
= u_minify(texture
->height0
, level
);
319 lpt
->offset
+= zslice
* pf_get_nblocksy(texture
->format
, tex_height
) * pt
->stride
;
332 llvmpipe_tex_transfer_destroy(struct pipe_transfer
*transfer
)
334 /* Effectively do the texture_update work here - if texture images
335 * needed post-processing to put them into hardware layout, this is
336 * where it would happen. For llvmpipe, nothing to do.
338 assert (transfer
->texture
);
339 pipe_texture_reference(&transfer
->texture
, NULL
);
345 llvmpipe_transfer_map( struct pipe_screen
*_screen
,
346 struct pipe_transfer
*transfer
)
348 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
349 ubyte
*map
, *xfer_map
;
350 struct llvmpipe_texture
*lpt
;
351 enum pipe_format format
;
353 assert(transfer
->texture
);
354 lpt
= llvmpipe_texture(transfer
->texture
);
355 format
= lpt
->base
.format
;
358 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
360 map
= winsys
->displaytarget_map(winsys
, lpt
->dt
,
361 pipe_transfer_buffer_flags(transfer
));
368 /* May want to different things here depending on read/write nature
371 if (transfer
->texture
&& (transfer
->usage
& PIPE_TRANSFER_WRITE
))
373 /* Do something to notify sharing contexts of a texture change.
374 * In llvmpipe, that would mean flushing the texture cache.
379 xfer_map
= map
+ llvmpipe_transfer(transfer
)->offset
+
380 transfer
->y
/ pf_get_blockheight(format
) * transfer
->stride
+
381 transfer
->x
/ pf_get_blockwidth(format
) * pf_get_blocksize(format
);
382 /*printf("map = %p xfer map = %p\n", map, xfer_map);*/
388 llvmpipe_transfer_unmap(struct pipe_screen
*_screen
,
389 struct pipe_transfer
*transfer
)
391 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
392 struct llvmpipe_texture
*lpt
;
394 assert(transfer
->texture
);
395 lpt
= llvmpipe_texture(transfer
->texture
);
398 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
399 winsys
->displaytarget_unmap(winsys
, lpt
->dt
);
405 llvmpipe_init_texture_funcs(struct llvmpipe_context
*lp
)
411 llvmpipe_init_screen_texture_funcs(struct pipe_screen
*screen
)
413 screen
->texture_create
= llvmpipe_texture_create
;
414 screen
->texture_blanket
= llvmpipe_texture_blanket
;
415 screen
->texture_destroy
= llvmpipe_texture_destroy
;
417 screen
->get_tex_surface
= llvmpipe_get_tex_surface
;
418 screen
->tex_surface_destroy
= llvmpipe_tex_surface_destroy
;
420 screen
->get_tex_transfer
= llvmpipe_get_tex_transfer
;
421 screen
->tex_transfer_destroy
= llvmpipe_tex_transfer_destroy
;
422 screen
->transfer_map
= llvmpipe_transfer_map
;
423 screen
->transfer_unmap
= llvmpipe_transfer_unmap
;