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>
34 #include "pipe/p_context.h"
35 #include "pipe/p_defines.h"
36 #include "util/u_inlines.h"
38 #include "util/u_format.h"
39 #include "util/u_math.h"
40 #include "util/u_memory.h"
42 #include "cell_context.h"
43 #include "cell_screen.h"
44 #include "cell_state.h"
45 #include "cell_texture.h"
47 #include "state_tracker/sw_winsys.h"
52 cell_texture_layout(struct pipe_screen
*screen
,
53 struct cell_texture
*ct
)
55 struct pipe_texture
*pt
= &ct
->base
;
57 unsigned width
= pt
->width0
;
58 unsigned height
= pt
->height0
;
59 unsigned depth
= pt
->depth0
;
63 for (level
= 0; level
<= pt
->last_level
; level
++) {
65 unsigned w_tile
, h_tile
;
67 assert(level
< CELL_MAX_TEXTURE_LEVELS
);
69 /* width, height, rounded up to tile size */
70 w_tile
= align(width
, TILE_SIZE
);
71 h_tile
= align(height
, TILE_SIZE
);
73 ct
->stride
[level
] = util_format_get_stride(pt
->format
, w_tile
);
75 ct
->level_offset
[level
] = ct
->buffer_size
;
77 size
= ct
->stride
[level
] * util_format_get_nblocksy(pt
->format
, h_tile
);
78 if (pt
->target
== PIPE_TEXTURE_CUBE
)
83 ct
->buffer_size
+= size
;
85 width
= u_minify(width
, 1);
86 height
= u_minify(height
, 1);
87 depth
= u_minify(depth
, 1);
90 ct
->data
= align_malloc(ct
->buffer_size
, 16);
92 return ct
->data
!= NULL
;
97 * Texture layout for simple color buffers.
100 cell_displaytarget_layout(struct pipe_screen
*screen
,
101 struct cell_texture
* ct
)
103 struct sw_winsys
*winsys
= cell_screen(screen
)->winsys
;
105 /* Round up the surface size to a multiple of the tile size?
107 ct
->dt
= winsys
->displaytarget_create(winsys
,
114 return ct
->dt
!= NULL
;
117 static struct pipe_texture
*
118 cell_texture_create(struct pipe_screen
*screen
,
119 const struct pipe_texture
*templat
)
121 struct cell_texture
*ct
= CALLOC_STRUCT(cell_texture
);
126 pipe_reference_init(&ct
->base
.reference
, 1);
127 ct
->base
.screen
= screen
;
129 /* Create both a displaytarget (linear) and regular texture
130 * (twiddled). Convert twiddled->linear at flush_frontbuffer time.
132 if (ct
->base
.tex_usage
& (PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
133 PIPE_TEXTURE_USAGE_SCANOUT
|
134 PIPE_TEXTURE_USAGE_SHARED
)) {
135 if (!cell_displaytarget_layout(screen
, ct
))
139 if (!cell_texture_layout(screen
, ct
))
146 struct sw_winsys
*winsys
= cell_screen(screen
)->winsys
;
147 winsys
->displaytarget_destroy(winsys
, ct
->dt
);
157 cell_texture_destroy(struct pipe_texture
*pt
)
159 struct cell_screen
*screen
= cell_screen(pt
->screen
);
160 struct sw_winsys
*winsys
= screen
->winsys
;
161 struct cell_texture
*ct
= cell_texture(pt
);
165 winsys
->displaytarget_destroy(winsys
, ct
->dt
);
168 align_free(ct
->data
);
176 * Convert image from linear layout to tiled layout. 4-byte pixels.
179 twiddle_image_uint(uint w
, uint h
, uint tile_size
, uint
*dst
,
180 uint src_stride
, const uint
*src
)
182 const uint tile_size2
= tile_size
* tile_size
;
183 const uint h_t
= (h
+ tile_size
- 1) / tile_size
;
184 const uint w_t
= (w
+ tile_size
- 1) / tile_size
;
186 uint it
, jt
; /* tile counters */
187 uint i
, j
; /* intra-tile counters */
189 src_stride
/= 4; /* convert from bytes to pixels */
191 /* loop over dest tiles */
192 for (it
= 0; it
< h_t
; it
++) {
193 for (jt
= 0; jt
< w_t
; jt
++) {
194 /* start of dest tile: */
195 uint
*tdst
= dst
+ (it
* w_t
+ jt
) * tile_size2
;
197 /* compute size of this tile (may be smaller than tile_size) */
198 /* XXX note: a compiler bug was found here. That's why the code
201 uint tile_width
= w
- jt
* tile_size
;
202 tile_width
= MIN2(tile_width
, tile_size
);
203 uint tile_height
= h
- it
* tile_size
;
204 tile_height
= MIN2(tile_height
, tile_size
);
206 /* loop over texels in the tile */
207 for (i
= 0; i
< tile_height
; i
++) {
208 for (j
= 0; j
< tile_width
; j
++) {
209 const uint srci
= it
* tile_size
+ i
;
210 const uint srcj
= jt
* tile_size
+ j
;
213 tdst
[i
* tile_size
+ j
] = src
[srci
* src_stride
+ srcj
];
222 * For Cell. Basically, rearrange the pixels/quads from this layout:
235 twiddle_tile(const uint
*tileIn
, uint
*tileOut
)
239 for (y
= 0; y
< TILE_SIZE
; y
+=2) {
240 for (x
= 0; x
< TILE_SIZE
; x
+=2) {
241 int k
= 4 * (y
/2 * TILE_SIZE
/2 + x
/2);
242 tileOut
[y
* TILE_SIZE
+ (x
+ 0)] = tileIn
[k
];
243 tileOut
[y
* TILE_SIZE
+ (x
+ 1)] = tileIn
[k
+1];
244 tileOut
[(y
+ 1) * TILE_SIZE
+ (x
+ 0)] = tileIn
[k
+2];
245 tileOut
[(y
+ 1) * TILE_SIZE
+ (x
+ 1)] = tileIn
[k
+3];
252 * Convert image from tiled layout to linear layout. 4-byte pixels.
255 untwiddle_image_uint(uint w
, uint h
, uint tile_size
, uint
*dst
,
256 uint dst_stride
, const uint
*src
)
258 const uint tile_size2
= tile_size
* tile_size
;
259 const uint h_t
= (h
+ tile_size
- 1) / tile_size
;
260 const uint w_t
= (w
+ tile_size
- 1) / tile_size
;
262 uint it
, jt
; /* tile counters */
263 uint i
, j
; /* intra-tile counters */
265 dst_stride
/= 4; /* convert from bytes to pixels */
267 tile_buf
= align_malloc(tile_size
* tile_size
* 4, 16);
269 /* loop over src tiles */
270 for (it
= 0; it
< h_t
; it
++) {
271 for (jt
= 0; jt
< w_t
; jt
++) {
272 /* start of src tile: */
273 const uint
*tsrc
= src
+ (it
* w_t
+ jt
) * tile_size2
;
275 twiddle_tile(tsrc
, tile_buf
);
278 /* compute size of this tile (may be smaller than tile_size) */
279 /* XXX note: a compiler bug was found here. That's why the code
282 uint tile_width
= w
- jt
* tile_size
;
283 tile_width
= MIN2(tile_width
, tile_size
);
284 uint tile_height
= h
- it
* tile_size
;
285 tile_height
= MIN2(tile_height
, tile_size
);
287 /* loop over texels in the tile */
288 for (i
= 0; i
< tile_height
; i
++) {
289 for (j
= 0; j
< tile_width
; j
++) {
290 uint dsti
= it
* tile_size
+ i
;
291 uint dstj
= jt
* tile_size
+ j
;
294 dst
[dsti
* dst_stride
+ dstj
] = tsrc
[i
* tile_size
+ j
];
300 align_free(tile_buf
);
304 static struct pipe_surface
*
305 cell_get_tex_surface(struct pipe_screen
*screen
,
306 struct pipe_texture
*pt
,
307 unsigned face
, unsigned level
, unsigned zslice
,
310 struct cell_texture
*ct
= cell_texture(pt
);
311 struct pipe_surface
*ps
;
313 ps
= CALLOC_STRUCT(pipe_surface
);
315 pipe_reference_init(&ps
->reference
, 1);
316 pipe_texture_reference(&ps
->texture
, pt
);
317 ps
->format
= pt
->format
;
318 ps
->width
= u_minify(pt
->width0
, level
);
319 ps
->height
= u_minify(pt
->height0
, level
);
320 ps
->offset
= ct
->level_offset
[level
];
321 /* XXX may need to override usage flags (see sp_texture.c) */
327 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
328 unsigned h_tile
= align(ps
->height
, TILE_SIZE
);
329 ps
->offset
+= face
* util_format_get_nblocksy(ps
->format
, h_tile
) * ct
->stride
[level
];
331 else if (pt
->target
== PIPE_TEXTURE_3D
) {
332 unsigned h_tile
= align(ps
->height
, TILE_SIZE
);
333 ps
->offset
+= zslice
* util_format_get_nblocksy(ps
->format
, h_tile
) * ct
->stride
[level
];
345 cell_tex_surface_destroy(struct pipe_surface
*surf
)
347 pipe_texture_reference(&surf
->texture
, NULL
);
353 * Create new pipe_transfer object.
354 * This is used by the user to put tex data into a texture (and get it
355 * back out for glGetTexImage).
357 static struct pipe_transfer
*
358 cell_get_tex_transfer(struct pipe_screen
*screen
,
359 struct pipe_texture
*texture
,
360 unsigned face
, unsigned level
, unsigned zslice
,
361 enum pipe_transfer_usage usage
,
362 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
364 struct cell_texture
*ct
= cell_texture(texture
);
365 struct cell_transfer
*ctrans
;
368 assert(level
<= texture
->last_level
);
370 ctrans
= CALLOC_STRUCT(cell_transfer
);
372 struct pipe_transfer
*pt
= &ctrans
->base
;
373 pipe_texture_reference(&pt
->texture
, texture
);
378 pt
->stride
= ct
->stride
[level
];
384 ctrans
->offset
= ct
->level_offset
[level
];
386 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
387 unsigned h_tile
= align(u_minify(texture
->height0
, level
), TILE_SIZE
);
388 ctrans
->offset
+= face
* util_format_get_nblocksy(texture
->format
, h_tile
) * pt
->stride
;
390 else if (texture
->target
== PIPE_TEXTURE_3D
) {
391 unsigned h_tile
= align(u_minify(texture
->height0
, level
), TILE_SIZE
);
392 ctrans
->offset
+= zslice
* util_format_get_nblocksy(texture
->format
, h_tile
) * pt
->stride
;
405 cell_tex_transfer_destroy(struct pipe_transfer
*t
)
407 struct cell_transfer
*transfer
= cell_transfer(t
);
408 /* Effectively do the texture_update work here - if texture images
409 * needed post-processing to put them into hardware layout, this is
410 * where it would happen. For cell, nothing to do.
412 assert (transfer
->base
.texture
);
413 pipe_texture_reference(&transfer
->base
.texture
, NULL
);
419 * Return pointer to texture image data in linear layout.
422 cell_transfer_map(struct pipe_screen
*screen
, struct pipe_transfer
*transfer
)
424 struct cell_transfer
*ctrans
= cell_transfer(transfer
);
425 struct pipe_texture
*pt
= transfer
->texture
;
426 struct cell_texture
*ct
= cell_texture(pt
);
427 const uint level
= ctrans
->base
.level
;
428 const uint texWidth
= u_minify(pt
->width0
, level
);
429 const uint texHeight
= u_minify(pt
->height0
, level
);
430 const uint stride
= ct
->stride
[level
];
433 assert(transfer
->texture
);
435 if (ct
->mapped
== NULL
) {
436 ct
->mapped
= ct
->data
;
440 * Create a buffer of ordinary memory for the linear texture.
441 * This is the memory that the user will read/write.
443 size
= util_format_get_stride(pt
->format
, align(texWidth
, TILE_SIZE
)) *
444 util_format_get_nblocksy(pt
->format
, align(texHeight
, TILE_SIZE
));
446 ctrans
->map
= align_malloc(size
, 16);
448 return NULL
; /* out of memory */
450 if (transfer
->usage
& PIPE_TRANSFER_READ
) {
451 /* need to untwiddle the texture to make a linear version */
452 const uint bpp
= util_format_get_blocksize(ct
->base
.format
);
454 const uint
*src
= (uint
*) (ct
->mapped
+ ctrans
->offset
);
455 uint
*dst
= ctrans
->map
;
456 untwiddle_image_uint(texWidth
, texHeight
, TILE_SIZE
,
469 * Called when user is done reading/writing texture data.
470 * If new data was written, this is where we convert the linear data
474 cell_transfer_unmap(struct pipe_screen
*screen
,
475 struct pipe_transfer
*transfer
)
477 struct cell_transfer
*ctrans
= cell_transfer(transfer
);
478 struct pipe_texture
*pt
= transfer
->texture
;
479 struct cell_texture
*ct
= cell_texture(pt
);
480 const uint level
= ctrans
->base
.level
;
481 const uint texWidth
= u_minify(pt
->width0
, level
);
482 const uint texHeight
= u_minify(pt
->height0
, level
);
483 const uint stride
= ct
->stride
[level
];
490 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
491 /* The user wrote new texture data into the mapped buffer.
492 * We need to convert the new linear data into the twiddled/tiled format.
494 const uint bpp
= util_format_get_blocksize(ct
->base
.format
);
496 const uint
*src
= ctrans
->map
;
497 uint
*dst
= (uint
*) (ct
->mapped
+ ctrans
->offset
);
498 twiddle_image_uint(texWidth
, texHeight
, TILE_SIZE
, dst
, stride
, src
);
505 align_free(ctrans
->map
);
511 /* This used to be overriden by the co-state tracker, but really needs
512 * to be active with sw_winsys.
514 * Contrasting with llvmpipe and softpipe, this is the only place
515 * where we use the ct->dt display target in any real sense.
517 * Basically just untwiddle our local data into the linear
521 cell_flush_frontbuffer(struct pipe_screen
*_screen
,
522 struct pipe_surface
*surface
,
523 void *context_private
)
525 struct cell_screen
*screen
= cell_screen(_screen
);
526 struct sw_winsys
*winsys
= screen
->winsys
;
527 struct cell_texture
*ct
= cell_texture(surface
->texture
);
532 /* Need to untwiddle from our internal representation here:
535 unsigned *map
= winsys
->displaytarget_map(winsys
, ct
->dt
,
536 (PIPE_BUFFER_USAGE_CPU_READ
|
537 PIPE_BUFFER_USAGE_CPU_WRITE
));
538 unsigned *src
= (unsigned *)(ct
->data
+ ct
->level_offset
[surface
->level
]);
540 untwiddle_image_uint(surface
->width
,
547 winsys
->displaytarget_unmap(winsys
, ct
->dt
);
550 winsys
->displaytarget_display(winsys
, ct
->dt
, context_private
);
555 cell_init_screen_texture_funcs(struct pipe_screen
*screen
)
557 screen
->texture_create
= cell_texture_create
;
558 screen
->texture_destroy
= cell_texture_destroy
;
560 screen
->get_tex_surface
= cell_get_tex_surface
;
561 screen
->tex_surface_destroy
= cell_tex_surface_destroy
;
563 screen
->get_tex_transfer
= cell_get_tex_transfer
;
564 screen
->tex_transfer_destroy
= cell_tex_transfer_destroy
;
566 screen
->transfer_map
= cell_transfer_map
;
567 screen
->transfer_unmap
= cell_transfer_unmap
;
569 screen
->flush_frontbuffer
= cell_flush_frontbuffer
;