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
,
115 return ct
->dt
!= NULL
;
118 static struct pipe_texture
*
119 cell_texture_create(struct pipe_screen
*screen
,
120 const struct pipe_texture
*templat
)
122 struct cell_texture
*ct
= CALLOC_STRUCT(cell_texture
);
127 pipe_reference_init(&ct
->base
.reference
, 1);
128 ct
->base
.screen
= screen
;
130 /* Create both a displaytarget (linear) and regular texture
131 * (twiddled). Convert twiddled->linear at flush_frontbuffer time.
133 if (ct
->base
.tex_usage
& (PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
134 PIPE_TEXTURE_USAGE_SCANOUT
|
135 PIPE_TEXTURE_USAGE_SHARED
)) {
136 if (!cell_displaytarget_layout(screen
, ct
))
140 if (!cell_texture_layout(screen
, ct
))
147 struct sw_winsys
*winsys
= cell_screen(screen
)->winsys
;
148 winsys
->displaytarget_destroy(winsys
, ct
->dt
);
158 cell_texture_destroy(struct pipe_texture
*pt
)
160 struct cell_screen
*screen
= cell_screen(pt
->screen
);
161 struct sw_winsys
*winsys
= screen
->winsys
;
162 struct cell_texture
*ct
= cell_texture(pt
);
166 winsys
->displaytarget_destroy(winsys
, ct
->dt
);
169 align_free(ct
->data
);
177 * Convert image from linear layout to tiled layout. 4-byte pixels.
180 twiddle_image_uint(uint w
, uint h
, uint tile_size
, uint
*dst
,
181 uint src_stride
, const uint
*src
)
183 const uint tile_size2
= tile_size
* tile_size
;
184 const uint h_t
= (h
+ tile_size
- 1) / tile_size
;
185 const uint w_t
= (w
+ tile_size
- 1) / tile_size
;
187 uint it
, jt
; /* tile counters */
188 uint i
, j
; /* intra-tile counters */
190 src_stride
/= 4; /* convert from bytes to pixels */
192 /* loop over dest tiles */
193 for (it
= 0; it
< h_t
; it
++) {
194 for (jt
= 0; jt
< w_t
; jt
++) {
195 /* start of dest tile: */
196 uint
*tdst
= dst
+ (it
* w_t
+ jt
) * tile_size2
;
198 /* compute size of this tile (may be smaller than tile_size) */
199 /* XXX note: a compiler bug was found here. That's why the code
202 uint tile_width
= w
- jt
* tile_size
;
203 tile_width
= MIN2(tile_width
, tile_size
);
204 uint tile_height
= h
- it
* tile_size
;
205 tile_height
= MIN2(tile_height
, tile_size
);
207 /* loop over texels in the tile */
208 for (i
= 0; i
< tile_height
; i
++) {
209 for (j
= 0; j
< tile_width
; j
++) {
210 const uint srci
= it
* tile_size
+ i
;
211 const uint srcj
= jt
* tile_size
+ j
;
214 tdst
[i
* tile_size
+ j
] = src
[srci
* src_stride
+ srcj
];
223 * For Cell. Basically, rearrange the pixels/quads from this layout:
236 twiddle_tile(const uint
*tileIn
, uint
*tileOut
)
240 for (y
= 0; y
< TILE_SIZE
; y
+=2) {
241 for (x
= 0; x
< TILE_SIZE
; x
+=2) {
242 int k
= 4 * (y
/2 * TILE_SIZE
/2 + x
/2);
243 tileOut
[y
* TILE_SIZE
+ (x
+ 0)] = tileIn
[k
];
244 tileOut
[y
* TILE_SIZE
+ (x
+ 1)] = tileIn
[k
+1];
245 tileOut
[(y
+ 1) * TILE_SIZE
+ (x
+ 0)] = tileIn
[k
+2];
246 tileOut
[(y
+ 1) * TILE_SIZE
+ (x
+ 1)] = tileIn
[k
+3];
253 * Convert image from tiled layout to linear layout. 4-byte pixels.
256 untwiddle_image_uint(uint w
, uint h
, uint tile_size
, uint
*dst
,
257 uint dst_stride
, const uint
*src
)
259 const uint tile_size2
= tile_size
* tile_size
;
260 const uint h_t
= (h
+ tile_size
- 1) / tile_size
;
261 const uint w_t
= (w
+ tile_size
- 1) / tile_size
;
263 uint it
, jt
; /* tile counters */
264 uint i
, j
; /* intra-tile counters */
266 dst_stride
/= 4; /* convert from bytes to pixels */
268 tile_buf
= align_malloc(tile_size
* tile_size
* 4, 16);
270 /* loop over src tiles */
271 for (it
= 0; it
< h_t
; it
++) {
272 for (jt
= 0; jt
< w_t
; jt
++) {
273 /* start of src tile: */
274 const uint
*tsrc
= src
+ (it
* w_t
+ jt
) * tile_size2
;
276 twiddle_tile(tsrc
, tile_buf
);
279 /* compute size of this tile (may be smaller than tile_size) */
280 /* XXX note: a compiler bug was found here. That's why the code
283 uint tile_width
= w
- jt
* tile_size
;
284 tile_width
= MIN2(tile_width
, tile_size
);
285 uint tile_height
= h
- it
* tile_size
;
286 tile_height
= MIN2(tile_height
, tile_size
);
288 /* loop over texels in the tile */
289 for (i
= 0; i
< tile_height
; i
++) {
290 for (j
= 0; j
< tile_width
; j
++) {
291 uint dsti
= it
* tile_size
+ i
;
292 uint dstj
= jt
* tile_size
+ j
;
295 dst
[dsti
* dst_stride
+ dstj
] = tsrc
[i
* tile_size
+ j
];
301 align_free(tile_buf
);
305 static struct pipe_surface
*
306 cell_get_tex_surface(struct pipe_screen
*screen
,
307 struct pipe_texture
*pt
,
308 unsigned face
, unsigned level
, unsigned zslice
,
311 struct cell_texture
*ct
= cell_texture(pt
);
312 struct pipe_surface
*ps
;
314 ps
= CALLOC_STRUCT(pipe_surface
);
316 pipe_reference_init(&ps
->reference
, 1);
317 pipe_texture_reference(&ps
->texture
, pt
);
318 ps
->format
= pt
->format
;
319 ps
->width
= u_minify(pt
->width0
, level
);
320 ps
->height
= u_minify(pt
->height0
, level
);
321 ps
->offset
= ct
->level_offset
[level
];
322 /* XXX may need to override usage flags (see sp_texture.c) */
328 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
329 unsigned h_tile
= align(ps
->height
, TILE_SIZE
);
330 ps
->offset
+= face
* util_format_get_nblocksy(ps
->format
, h_tile
) * ct
->stride
[level
];
332 else if (pt
->target
== PIPE_TEXTURE_3D
) {
333 unsigned h_tile
= align(ps
->height
, TILE_SIZE
);
334 ps
->offset
+= zslice
* util_format_get_nblocksy(ps
->format
, h_tile
) * ct
->stride
[level
];
346 cell_tex_surface_destroy(struct pipe_surface
*surf
)
348 pipe_texture_reference(&surf
->texture
, NULL
);
354 * Create new pipe_transfer object.
355 * This is used by the user to put tex data into a texture (and get it
356 * back out for glGetTexImage).
358 static struct pipe_transfer
*
359 cell_get_tex_transfer(struct pipe_context
*ctx
,
360 struct pipe_texture
*texture
,
361 unsigned face
, unsigned level
, unsigned zslice
,
362 enum pipe_transfer_usage usage
,
363 unsigned x
, unsigned y
, unsigned w
, unsigned h
)
365 struct cell_texture
*ct
= cell_texture(texture
);
366 struct cell_transfer
*ctrans
;
369 assert(level
<= texture
->last_level
);
371 ctrans
= CALLOC_STRUCT(cell_transfer
);
373 struct pipe_transfer
*pt
= &ctrans
->base
;
374 pipe_texture_reference(&pt
->texture
, texture
);
379 pt
->stride
= ct
->stride
[level
];
385 ctrans
->offset
= ct
->level_offset
[level
];
387 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
388 unsigned h_tile
= align(u_minify(texture
->height0
, level
), TILE_SIZE
);
389 ctrans
->offset
+= face
* util_format_get_nblocksy(texture
->format
, h_tile
) * pt
->stride
;
391 else if (texture
->target
== PIPE_TEXTURE_3D
) {
392 unsigned h_tile
= align(u_minify(texture
->height0
, level
), TILE_SIZE
);
393 ctrans
->offset
+= zslice
* util_format_get_nblocksy(texture
->format
, h_tile
) * pt
->stride
;
406 cell_tex_transfer_destroy(struct pipe_context
*ctx
, struct pipe_transfer
*t
)
408 struct cell_transfer
*transfer
= cell_transfer(t
);
409 /* Effectively do the texture_update work here - if texture images
410 * needed post-processing to put them into hardware layout, this is
411 * where it would happen. For cell, nothing to do.
413 assert (transfer
->base
.texture
);
414 pipe_texture_reference(&transfer
->base
.texture
, NULL
);
420 * Return pointer to texture image data in linear layout.
423 cell_transfer_map(struct pipe_context
*ctx
, struct pipe_transfer
*transfer
)
425 struct cell_transfer
*ctrans
= cell_transfer(transfer
);
426 struct pipe_texture
*pt
= transfer
->texture
;
427 struct cell_texture
*ct
= cell_texture(pt
);
428 const uint level
= ctrans
->base
.level
;
429 const uint texWidth
= u_minify(pt
->width0
, level
);
430 const uint texHeight
= u_minify(pt
->height0
, level
);
431 const uint stride
= ct
->stride
[level
];
434 assert(transfer
->texture
);
436 if (ct
->mapped
== NULL
) {
437 ct
->mapped
= ct
->data
;
441 * Create a buffer of ordinary memory for the linear texture.
442 * This is the memory that the user will read/write.
444 size
= util_format_get_stride(pt
->format
, align(texWidth
, TILE_SIZE
)) *
445 util_format_get_nblocksy(pt
->format
, align(texHeight
, TILE_SIZE
));
447 ctrans
->map
= align_malloc(size
, 16);
449 return NULL
; /* out of memory */
451 if (transfer
->usage
& PIPE_TRANSFER_READ
) {
452 /* need to untwiddle the texture to make a linear version */
453 const uint bpp
= util_format_get_blocksize(ct
->base
.format
);
455 const uint
*src
= (uint
*) (ct
->mapped
+ ctrans
->offset
);
456 uint
*dst
= ctrans
->map
;
457 untwiddle_image_uint(texWidth
, texHeight
, TILE_SIZE
,
470 * Called when user is done reading/writing texture data.
471 * If new data was written, this is where we convert the linear data
475 cell_transfer_unmap(struct pipe_context
*ctx
,
476 struct pipe_transfer
*transfer
)
478 struct cell_transfer
*ctrans
= cell_transfer(transfer
);
479 struct pipe_texture
*pt
= transfer
->texture
;
480 struct cell_texture
*ct
= cell_texture(pt
);
481 const uint level
= ctrans
->base
.level
;
482 const uint texWidth
= u_minify(pt
->width0
, level
);
483 const uint texHeight
= u_minify(pt
->height0
, level
);
484 const uint stride
= ct
->stride
[level
];
491 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
492 /* The user wrote new texture data into the mapped buffer.
493 * We need to convert the new linear data into the twiddled/tiled format.
495 const uint bpp
= util_format_get_blocksize(ct
->base
.format
);
497 const uint
*src
= ctrans
->map
;
498 uint
*dst
= (uint
*) (ct
->mapped
+ ctrans
->offset
);
499 twiddle_image_uint(texWidth
, texHeight
, TILE_SIZE
, dst
, stride
, src
);
506 align_free(ctrans
->map
);
512 /* This used to be overriden by the co-state tracker, but really needs
513 * to be active with sw_winsys.
515 * Contrasting with llvmpipe and softpipe, this is the only place
516 * where we use the ct->dt display target in any real sense.
518 * Basically just untwiddle our local data into the linear
522 cell_flush_frontbuffer(struct pipe_screen
*_screen
,
523 struct pipe_surface
*surface
,
524 void *context_private
)
526 struct cell_screen
*screen
= cell_screen(_screen
);
527 struct sw_winsys
*winsys
= screen
->winsys
;
528 struct cell_texture
*ct
= cell_texture(surface
->texture
);
533 /* Need to untwiddle from our internal representation here:
536 unsigned *map
= winsys
->displaytarget_map(winsys
, ct
->dt
,
537 (PIPE_BUFFER_USAGE_CPU_READ
|
538 PIPE_BUFFER_USAGE_CPU_WRITE
));
539 unsigned *src
= (unsigned *)(ct
->data
+ ct
->level_offset
[surface
->level
]);
541 untwiddle_image_uint(surface
->width
,
548 winsys
->displaytarget_unmap(winsys
, ct
->dt
);
551 winsys
->displaytarget_display(winsys
, ct
->dt
, context_private
);
556 cell_init_screen_texture_funcs(struct pipe_screen
*screen
)
558 screen
->texture_create
= cell_texture_create
;
559 screen
->texture_destroy
= cell_texture_destroy
;
561 screen
->get_tex_surface
= cell_get_tex_surface
;
562 screen
->tex_surface_destroy
= cell_tex_surface_destroy
;
564 screen
->flush_frontbuffer
= cell_flush_frontbuffer
;
568 cell_init_texture_transfer_funcs(struct cell_context
*cell
)
570 cell
->pipe
.get_tex_transfer
= cell_get_tex_transfer
;
571 cell
->pipe
.tex_transfer_destroy
= cell_tex_transfer_destroy
;
572 cell
->pipe
.transfer_map
= cell_transfer_map
;
573 cell
->pipe
.transfer_unmap
= cell_transfer_unmap
;