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"
38 #include "util/u_format.h"
39 #include "util/u_math.h"
40 #include "util/u_memory.h"
42 #include "lp_context.h"
44 #include "lp_texture.h"
45 #include "lp_screen.h"
46 #include "lp_winsys.h"
49 /* 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
->width0
;
61 unsigned height
= pt
->height0
;
62 unsigned depth
= pt
->depth0
;
64 unsigned buffer_size
= 0;
66 for (level
= 0; level
<= pt
->last_level
; level
++) {
67 unsigned nblocksx
, nblocksy
;
69 /* Allocate storage for whole quads. This is particularly important
70 * for depth surfaces, which are currently stored in a swizzled format. */
71 nblocksx
= util_format_get_nblocksx(pt
->format
, align(width
, 2));
72 nblocksy
= util_format_get_nblocksy(pt
->format
, align(height
, 2));
74 lpt
->stride
[level
] = align(nblocksx
* util_format_get_blocksize(pt
->format
), 16);
76 lpt
->level_offset
[level
] = buffer_size
;
78 buffer_size
+= (nblocksy
*
79 ((pt
->target
== PIPE_TEXTURE_CUBE
) ? 6 : depth
) *
82 width
= u_minify(width
, 1);
83 height
= u_minify(height
, 1);
84 depth
= u_minify(depth
, 1);
87 lpt
->data
= align_malloc(buffer_size
, 16);
89 return lpt
->data
!= NULL
;
93 llvmpipe_displaytarget_layout(struct llvmpipe_screen
*screen
,
94 struct llvmpipe_texture
* lpt
)
96 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
98 lpt
->dt
= winsys
->displaytarget_create(winsys
,
105 return lpt
->dt
!= NULL
;
112 static struct pipe_texture
*
113 llvmpipe_texture_create(struct pipe_screen
*_screen
,
114 const struct pipe_texture
*templat
)
116 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
117 struct llvmpipe_texture
*lpt
= CALLOC_STRUCT(llvmpipe_texture
);
121 lpt
->base
= *templat
;
122 pipe_reference_init(&lpt
->base
.reference
, 1);
123 lpt
->base
.screen
= &screen
->base
;
125 /* XXX: The xlib state tracker is brain-dead and will request
126 * PIPE_FORMAT_Z16_UNORM no matter how much we tell it we don't support it.
128 if(lpt
->base
.format
== PIPE_FORMAT_Z16_UNORM
)
129 lpt
->base
.format
= PIPE_FORMAT_Z32_UNORM
;
131 if (lpt
->base
.tex_usage
& (PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
132 PIPE_TEXTURE_USAGE_PRIMARY
)) {
133 if (!llvmpipe_displaytarget_layout(screen
, lpt
))
137 if (!llvmpipe_texture_layout(screen
, lpt
))
149 static struct pipe_texture
*
150 llvmpipe_texture_blanket(struct pipe_screen
* screen
,
151 const struct pipe_texture
*base
,
152 const unsigned *stride
,
153 struct pipe_buffer
*buffer
)
157 struct llvmpipe_texture
*lpt
;
160 /* Only supports one type */
161 if (base
->target
!= PIPE_TEXTURE_2D
||
162 base
->last_level
!= 0 ||
167 lpt
= CALLOC_STRUCT(llvmpipe_texture
);
172 pipe_reference_init(&lpt
->base
.reference
, 1);
173 lpt
->base
.screen
= screen
;
174 lpt
->stride
[0] = stride
[0];
176 pipe_buffer_reference(&lpt
->buffer
, buffer
);
186 llvmpipe_texture_destroy(struct pipe_texture
*pt
)
188 struct llvmpipe_screen
*screen
= llvmpipe_screen(pt
->screen
);
189 struct llvmpipe_texture
*lpt
= llvmpipe_texture(pt
);
192 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
193 winsys
->displaytarget_destroy(winsys
, lpt
->dt
);
196 align_free(lpt
->data
);
202 static struct pipe_surface
*
203 llvmpipe_get_tex_surface(struct pipe_screen
*screen
,
204 struct pipe_texture
*pt
,
205 unsigned face
, unsigned level
, unsigned zslice
,
208 struct llvmpipe_texture
*lpt
= llvmpipe_texture(pt
);
209 struct pipe_surface
*ps
;
211 assert(level
<= pt
->last_level
);
213 ps
= CALLOC_STRUCT(pipe_surface
);
215 pipe_reference_init(&ps
->reference
, 1);
216 pipe_texture_reference(&ps
->texture
, pt
);
217 ps
->format
= pt
->format
;
218 ps
->width
= u_minify(pt
->width0
, level
);
219 ps
->height
= u_minify(pt
->height0
, level
);
220 ps
->offset
= lpt
->level_offset
[level
];
223 /* Because we are llvmpipe, anything that the state tracker
224 * thought was going to be done with the GPU will actually get
225 * done with the CPU. Let's adjust the flags to take that into
228 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_WRITE
) {
229 /* GPU_WRITE means "render" and that can involve reads (blending) */
230 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_WRITE
| PIPE_BUFFER_USAGE_CPU_READ
;
233 if (ps
->usage
& PIPE_BUFFER_USAGE_GPU_READ
)
234 ps
->usage
|= PIPE_BUFFER_USAGE_CPU_READ
;
236 if (ps
->usage
& (PIPE_BUFFER_USAGE_CPU_WRITE
|
237 PIPE_BUFFER_USAGE_GPU_WRITE
)) {
238 /* Mark the surface as dirty. */
240 llvmpipe_screen(screen
)->timestamp
++;
247 /* XXX shouldn't that rather be
248 tex_height = align(ps->height, 2);
249 to account for alignment done in llvmpipe_texture_layout ?
251 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
252 unsigned tex_height
= ps
->height
;
253 ps
->offset
+= face
* util_format_get_nblocksy(pt
->format
, tex_height
) * lpt
->stride
[level
];
255 else if (pt
->target
== PIPE_TEXTURE_3D
) {
256 unsigned tex_height
= ps
->height
;
257 ps
->offset
+= zslice
* util_format_get_nblocksy(pt
->format
, tex_height
) * lpt
->stride
[level
];
269 llvmpipe_tex_surface_destroy(struct pipe_surface
*surf
)
271 /* Effectively do the texture_update work here - if texture images
272 * needed post-processing to put them into hardware layout, this is
273 * where it would happen. For llvmpipe, nothing to do.
275 assert(surf
->texture
);
276 pipe_texture_reference(&surf
->texture
, NULL
);
281 static struct pipe_transfer
*
282 llvmpipe_get_tex_transfer(struct pipe_screen
*screen
,
283 struct pipe_texture
*texture
,
284 unsigned face
, unsigned level
, unsigned zslice
,
285 enum pipe_transfer_usage usage
,
286 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
288 struct llvmpipe_texture
*lptex
= llvmpipe_texture(texture
);
289 struct llvmpipe_transfer
*lpt
;
292 assert(level
<= texture
->last_level
);
294 lpt
= CALLOC_STRUCT(llvmpipe_transfer
);
296 struct pipe_transfer
*pt
= &lpt
->base
;
297 pipe_texture_reference(&pt
->texture
, texture
);
302 pt
->stride
= lptex
->stride
[level
];
308 lpt
->offset
= lptex
->level_offset
[level
];
310 /* XXX shouldn't that rather be
311 tex_height = align(u_minify(texture->height0, level), 2)
312 to account for alignment done in llvmpipe_texture_layout ?
314 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
315 unsigned tex_height
= u_minify(texture
->height0
, level
);
316 lpt
->offset
+= face
* util_format_get_nblocksy(texture
->format
, tex_height
) * pt
->stride
;
318 else if (texture
->target
== PIPE_TEXTURE_3D
) {
319 unsigned tex_height
= u_minify(texture
->height0
, level
);
320 lpt
->offset
+= zslice
* util_format_get_nblocksy(texture
->format
, tex_height
) * pt
->stride
;
333 llvmpipe_tex_transfer_destroy(struct pipe_transfer
*transfer
)
335 /* Effectively do the texture_update work here - if texture images
336 * needed post-processing to put them into hardware layout, this is
337 * where it would happen. For llvmpipe, nothing to do.
339 assert (transfer
->texture
);
340 pipe_texture_reference(&transfer
->texture
, NULL
);
346 llvmpipe_transfer_map( struct pipe_screen
*_screen
,
347 struct pipe_transfer
*transfer
)
349 struct llvmpipe_screen
*screen
= llvmpipe_screen(_screen
);
350 ubyte
*map
, *xfer_map
;
351 struct llvmpipe_texture
*lpt
;
352 enum pipe_format format
;
354 assert(transfer
->texture
);
355 lpt
= llvmpipe_texture(transfer
->texture
);
356 format
= lpt
->base
.format
;
359 struct llvmpipe_winsys
*winsys
= screen
->winsys
;
361 map
= winsys
->displaytarget_map(winsys
, lpt
->dt
,
362 pipe_transfer_buffer_flags(transfer
));
369 /* May want to different things here depending on read/write nature
372 if (transfer
->texture
&& (transfer
->usage
& PIPE_TRANSFER_WRITE
))
374 /* Do something to notify sharing contexts of a texture change.
379 xfer_map
= map
+ llvmpipe_transfer(transfer
)->offset
+
380 transfer
->y
/ util_format_get_blockheight(format
) * transfer
->stride
+
381 transfer
->x
/ util_format_get_blockwidth(format
) * util_format_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
;