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 "util/u_inlines.h"
37 #include "util/u_format.h"
38 #include "util/u_math.h"
39 #include "util/u_memory.h"
41 #include "lp_context.h"
42 #include "lp_screen.h"
44 #include "lp_texture.h"
45 #include "lp_tile_size.h"
46 #include "lp_winsys.h"
50 * Conventional allocation path for non-display textures:
51 * Simple, maximally packed layout.
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
;
62 unsigned buffer_size
= 0;
64 for (level
= 0; level
<= pt
->last_level
; level
++) {
65 unsigned nblocksx
, nblocksy
;
67 /* Allocate storage for whole quads. This is particularly important
68 * for depth surfaces, which are currently stored in a swizzled format.
70 nblocksx
= util_format_get_nblocksx(pt
->format
, align(width
, TILE_SIZE
));
71 nblocksy
= util_format_get_nblocksy(pt
->format
, align(height
, TILE_SIZE
));
73 lpt
->stride
[level
] = align(nblocksx
* util_format_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
;
94 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
95 struct llvmpipe_texture
*lpt
)
97 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
99 /* Round up the surface size to a multiple of the tile size to
100 * avoid tile clipping.
102 unsigned width
= align(lpt
->base
.width0
, TILE_SIZE
);
103 unsigned height
= align(lpt
->base
.height0
, TILE_SIZE
);
105 lpt
->dt
= winsys
->displaytarget_create(winsys
,
111 return lpt
->dt
!= NULL
;
115 static struct pipe_texture
*
116 llvmpipe_texture_create(struct pipe_screen
*_screen
,
117 const struct pipe_texture
*templat
)
119 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
120 struct llvmpipe_texture
*lpt
= CALLOC_STRUCT(llvmpipe_texture
);
124 lpt
->base
= *templat
;
125 pipe_reference_init(&lpt
->base
.reference
, 1);
126 lpt
->base
.screen
= &screen
->base
;
128 /* XXX: The xlib state tracker is brain-dead and will request
129 * PIPE_FORMAT_Z16_UNORM no matter how much we tell it we don't support it.
131 if (lpt
->base
.format
== PIPE_FORMAT_Z16_UNORM
)
132 lpt
->base
.format
= PIPE_FORMAT_Z32_UNORM
;
134 if (lpt
->base
.tex_usage
& (PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
135 PIPE_TEXTURE_USAGE_PRIMARY
)) {
136 if (!llvmpipe_displaytarget_layout(screen
, lpt
))
140 if (!llvmpipe_texture_layout(screen
, lpt
))
152 static struct pipe_texture
*
153 llvmpipe_texture_blanket(struct pipe_screen
* screen
,
154 const struct pipe_texture
*base
,
155 const unsigned *stride
,
156 struct pipe_buffer
*buffer
)
160 struct llvmpipe_texture
*lpt
;
163 /* Only supports one type */
164 if (base
->target
!= PIPE_TEXTURE_2D
||
165 base
->last_level
!= 0 ||
170 lpt
= CALLOC_STRUCT(llvmpipe_texture
);
175 pipe_reference_init(&lpt
->base
.reference
, 1);
176 lpt
->base
.screen
= screen
;
177 lpt
->stride
[0] = stride
[0];
179 pipe_buffer_reference(&lpt
->buffer
, buffer
);
183 debug_printf("llvmpipe_texture_blanket() not implemented!");
190 llvmpipe_texture_destroy(struct pipe_texture
*pt
)
192 struct llvmpipe_screen
*screen
= llvmpipe_screen(pt
->screen
);
193 struct llvmpipe_texture
*lpt
= llvmpipe_texture(pt
);
197 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
198 winsys
->displaytarget_destroy(winsys
, lpt
->dt
);
201 /* regular texture */
202 align_free(lpt
->data
);
209 static struct pipe_surface
*
210 llvmpipe_get_tex_surface(struct pipe_screen
*screen
,
211 struct pipe_texture
*pt
,
212 unsigned face
, unsigned level
, unsigned zslice
,
215 struct llvmpipe_texture
*lpt
= llvmpipe_texture(pt
);
216 struct pipe_surface
*ps
;
218 assert(level
<= pt
->last_level
);
220 ps
= CALLOC_STRUCT(pipe_surface
);
222 pipe_reference_init(&ps
->reference
, 1);
223 pipe_texture_reference(&ps
->texture
, pt
);
224 ps
->format
= pt
->format
;
225 ps
->width
= u_minify(pt
->width0
, level
);
226 ps
->height
= u_minify(pt
->height0
, level
);
227 ps
->offset
= lpt
->level_offset
[level
];
230 /* Because we are llvmpipe, anything that the state tracker
231 * thought was going to be done with the GPU will actually get
232 * done with the CPU. Let's adjust the flags to take that into
235 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_WRITE
) {
236 /* GPU_WRITE means "render" and that can involve reads (blending) */
237 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_WRITE
| PIPE_BUFFER_USAGE_CPU_READ
;
240 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_READ
)
241 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_READ
;
243 if (ps
->usage
& (PIPE_BUFFER_USAGE_CPU_WRITE
|
244 PIPE_BUFFER_USAGE_GPU_WRITE
)) {
245 /* Mark the surface as dirty. */
247 llvmpipe_screen(screen
)->timestamp
++;
254 /* XXX shouldn't that rather be
255 tex_height = align(ps->height, 2);
256 to account for alignment done in llvmpipe_texture_layout ?
258 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
259 unsigned tex_height
= ps
->height
;
260 ps
->offset
+= face
* util_format_get_nblocksy(pt
->format
, tex_height
) * lpt
->stride
[level
];
262 else if (pt
->target
== PIPE_TEXTURE_3D
) {
263 unsigned tex_height
= ps
->height
;
264 ps
->offset
+= zslice
* util_format_get_nblocksy(pt
->format
, tex_height
) * lpt
->stride
[level
];
276 llvmpipe_tex_surface_destroy(struct pipe_surface
*surf
)
278 /* Effectively do the texture_update work here - if texture images
279 * needed post-processing to put them into hardware layout, this is
280 * where it would happen. For llvmpipe, nothing to do.
282 assert(surf
->texture
);
283 pipe_texture_reference(&surf
->texture
, NULL
);
288 static struct pipe_transfer
*
289 llvmpipe_get_tex_transfer(struct pipe_screen
*screen
,
290 struct pipe_texture
*texture
,
291 unsigned face
, unsigned level
, unsigned zslice
,
292 enum pipe_transfer_usage usage
,
293 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
295 struct llvmpipe_texture
*lptex
= llvmpipe_texture(texture
);
296 struct llvmpipe_transfer
*lpt
;
299 assert(level
<= texture
->last_level
);
301 lpt
= CALLOC_STRUCT(llvmpipe_transfer
);
303 struct pipe_transfer
*pt
= &lpt
->base
;
304 pipe_texture_reference(&pt
->texture
, texture
);
307 pt
->width
= align(w
, TILE_SIZE
);
308 pt
->height
= align(h
, TILE_SIZE
);
309 pt
->stride
= lptex
->stride
[level
];
315 lpt
->offset
= lptex
->level_offset
[level
];
317 /* XXX shouldn't that rather be
318 tex_height = align(u_minify(texture->height0, level), 2)
319 to account for alignment done in llvmpipe_texture_layout ?
321 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
322 unsigned tex_height
= u_minify(texture
->height0
, level
);
323 lpt
->offset
+= face
* util_format_get_nblocksy(texture
->format
, tex_height
) * pt
->stride
;
325 else if (texture
->target
== PIPE_TEXTURE_3D
) {
326 unsigned tex_height
= u_minify(texture
->height0
, level
);
327 lpt
->offset
+= zslice
* util_format_get_nblocksy(texture
->format
, tex_height
) * pt
->stride
;
340 llvmpipe_tex_transfer_destroy(struct pipe_transfer
*transfer
)
342 /* Effectively do the texture_update work here - if texture images
343 * needed post-processing to put them into hardware layout, this is
344 * where it would happen. For llvmpipe, nothing to do.
346 assert (transfer
->texture
);
347 pipe_texture_reference(&transfer
->texture
, NULL
);
353 llvmpipe_transfer_map( struct pipe_screen
*_screen
,
354 struct pipe_transfer
*transfer
)
356 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
357 ubyte
*map
, *xfer_map
;
358 struct llvmpipe_texture
*lpt
;
359 enum pipe_format format
;
361 assert(transfer
->texture
);
362 lpt
= llvmpipe_texture(transfer
->texture
);
363 format
= lpt
->base
.format
;
367 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
369 map
= winsys
->displaytarget_map(winsys
, lpt
->dt
,
370 pipe_transfer_buffer_flags(transfer
));
375 /* regular texture */
379 /* May want to different things here depending on read/write nature
382 if (transfer
->texture
&& (transfer
->usage
& PIPE_TRANSFER_WRITE
)) {
383 /* Do something to notify sharing contexts of a texture change.
388 xfer_map
= map
+ llvmpipe_transfer(transfer
)->offset
+
389 transfer
->y
/ util_format_get_blockheight(format
) * transfer
->stride
+
390 transfer
->x
/ util_format_get_blockwidth(format
) * util_format_get_blocksize(format
);
391 /*printf("map = %p xfer map = %p\n", map, xfer_map);*/
397 llvmpipe_transfer_unmap(struct pipe_screen
*screen
,
398 struct pipe_transfer
*transfer
)
400 struct llvmpipe_screen
*lp_screen
= llvmpipe_screen(screen
);
401 struct llvmpipe_texture
*lpt
;
403 assert(transfer
->texture
);
404 lpt
= llvmpipe_texture(transfer
->texture
);
408 struct llvmpipe_winsys
*winsys
= lp_screen
->winsys
;
409 winsys
->displaytarget_unmap(winsys
, lpt
->dt
);
415 llvmpipe_init_screen_texture_funcs(struct pipe_screen
*screen
)
417 screen
->texture_create
= llvmpipe_texture_create
;
418 screen
->texture_blanket
= llvmpipe_texture_blanket
;
419 screen
->texture_destroy
= llvmpipe_texture_destroy
;
421 screen
->get_tex_surface
= llvmpipe_get_tex_surface
;
422 screen
->tex_surface_destroy
= llvmpipe_tex_surface_destroy
;
424 screen
->get_tex_transfer
= llvmpipe_get_tex_transfer
;
425 screen
->tex_transfer_destroy
= llvmpipe_tex_transfer_destroy
;
426 screen
->transfer_map
= llvmpipe_transfer_map
;
427 screen
->transfer_unmap
= llvmpipe_transfer_unmap
;