1 /**************************************************************************
3 * Copyright 2009 VMware, Inc.
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 VMWARE 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 **************************************************************************/
28 #include "util/u_framebuffer.h"
29 #include "util/u_math.h"
30 #include "util/u_memory.h"
31 #include "util/u_inlines.h"
32 #include "util/u_simple_list.h"
33 #include "util/u_format.h"
39 #define RESOURCE_REF_SZ 32
41 /** List of resource references */
43 struct pipe_resource
*resource
[RESOURCE_REF_SZ
];
45 struct resource_ref
*next
;
50 * Create a new scene object.
51 * \param queue the queue to put newly rendered/emptied scenes into
54 lp_scene_create( struct pipe_context
*pipe
)
56 struct lp_scene
*scene
= CALLOC_STRUCT(lp_scene
);
61 scene
->data
.head
= &scene
->data
.first
;
63 pipe_mutex_init(scene
->mutex
);
70 * Free all data associated with the given scene, and the scene itself.
73 lp_scene_destroy(struct lp_scene
*scene
)
75 pipe_mutex_destroy(scene
->mutex
);
76 assert(scene
->data
.head
== &scene
->data
.first
);
82 * Check if the scene's bins are all empty.
83 * For debugging purposes.
86 lp_scene_is_empty(struct lp_scene
*scene
)
90 for (y
= 0; y
< TILES_Y
; y
++) {
91 for (x
= 0; x
< TILES_X
; x
++) {
92 const struct cmd_bin
*bin
= lp_scene_get_bin(scene
, x
, y
);
102 /* Returns true if there has ever been a failed allocation attempt in
103 * this scene. Used in triangle emit to avoid having to check success
107 lp_scene_is_oom(struct lp_scene
*scene
)
109 return scene
->alloc_failed
;
113 /* Remove all commands from a bin. Tries to reuse some of the memory
114 * allocated to the bin, however.
117 lp_scene_bin_reset(struct lp_scene
*scene
, unsigned x
, unsigned y
)
119 struct cmd_bin
*bin
= lp_scene_get_bin(scene
, x
, y
);
121 bin
->head
= bin
->tail
;
123 bin
->tail
->next
= NULL
;
124 bin
->tail
->count
= 0;
130 lp_scene_begin_rasterization(struct lp_scene
*scene
)
132 const struct pipe_framebuffer_state
*fb
= &scene
->fb
;
135 //LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
137 for (i
= 0; i
< scene
->fb
.nr_cbufs
; i
++) {
138 struct pipe_surface
*cbuf
= scene
->fb
.cbufs
[i
];
139 scene
->cbufs
[i
].stride
= llvmpipe_resource_stride(cbuf
->texture
,
142 scene
->cbufs
[i
].map
= llvmpipe_resource_map(cbuf
->texture
,
146 LP_TEX_USAGE_READ_WRITE
,
147 LP_TEX_LAYOUT_LINEAR
);
151 struct pipe_surface
*zsbuf
= scene
->fb
.zsbuf
;
152 scene
->zsbuf
.stride
= llvmpipe_resource_stride(zsbuf
->texture
, zsbuf
->level
);
153 scene
->zsbuf
.blocksize
=
154 util_format_get_blocksize(zsbuf
->texture
->format
);
156 scene
->zsbuf
.map
= llvmpipe_resource_map(zsbuf
->texture
,
160 LP_TEX_USAGE_READ_WRITE
,
169 * Free all the temporary data in a scene.
172 lp_scene_end_rasterization(struct lp_scene
*scene
)
176 /* Unmap color buffers */
177 for (i
= 0; i
< scene
->fb
.nr_cbufs
; i
++) {
178 if (scene
->cbufs
[i
].map
) {
179 struct pipe_surface
*cbuf
= scene
->fb
.cbufs
[i
];
180 llvmpipe_resource_unmap(cbuf
->texture
,
184 scene
->cbufs
[i
].map
= NULL
;
188 /* Unmap z/stencil buffer */
189 if (scene
->zsbuf
.map
) {
190 struct pipe_surface
*zsbuf
= scene
->fb
.zsbuf
;
191 llvmpipe_resource_unmap(zsbuf
->texture
,
195 scene
->zsbuf
.map
= NULL
;
198 /* Reset all command lists:
200 for (i
= 0; i
< scene
->tiles_x
; i
++) {
201 for (j
= 0; j
< scene
->tiles_y
; j
++) {
202 struct cmd_bin
*bin
= lp_scene_get_bin(scene
, i
, j
);
203 bin
->head
= bin
->tail
= NULL
;
207 /* If there are any bins which weren't cleared by the loop above,
208 * they will be caught (on debug builds at least) by this assert:
210 assert(lp_scene_is_empty(scene
));
212 /* Decrement texture ref counts
215 struct resource_ref
*ref
;
218 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
219 for (i
= 0; i
< ref
->count
; i
++) {
220 if (LP_DEBUG
& DEBUG_SETUP
)
221 debug_printf("resource %d: %p %dx%d sz %d\n",
224 ref
->resource
[i
]->width0
,
225 ref
->resource
[i
]->height0
,
226 llvmpipe_resource_size(ref
->resource
[i
]));
228 pipe_resource_reference(&ref
->resource
[i
], NULL
);
232 if (LP_DEBUG
& DEBUG_SETUP
)
233 debug_printf("scene %d resources, sz %d\n",
234 j
, scene
->resource_reference_size
);
237 /* Free all scene data blocks:
240 struct data_block_list
*list
= &scene
->data
;
241 struct data_block
*block
, *tmp
;
243 for (block
= list
->head
; block
; block
= tmp
) {
245 if (block
!= &list
->first
)
249 list
->head
= &list
->first
;
250 list
->head
->next
= NULL
;
253 lp_fence_reference(&scene
->fence
, NULL
);
255 scene
->resources
= NULL
;
256 scene
->scene_size
= 0;
257 scene
->resource_reference_size
= 0;
259 scene
->has_depthstencil_clear
= FALSE
;
260 scene
->alloc_failed
= FALSE
;
262 util_unreference_framebuffer_state( &scene
->fb
);
271 lp_scene_new_cmd_block( struct lp_scene
*scene
,
272 struct cmd_bin
*bin
)
274 struct cmd_block
*block
= lp_scene_alloc(scene
, sizeof(struct cmd_block
));
277 bin
->tail
->next
= block
;
284 //memset(block, 0, sizeof *block);
293 lp_scene_new_data_block( struct lp_scene
*scene
)
295 if (scene
->scene_size
+ DATA_BLOCK_SIZE
> LP_SCENE_MAX_SIZE
) {
296 if (0) debug_printf("%s: failed\n", __FUNCTION__
);
297 scene
->alloc_failed
= TRUE
;
301 struct data_block
*block
= MALLOC_STRUCT(data_block
);
305 scene
->scene_size
+= sizeof *block
;
308 block
->next
= scene
->data
.head
;
309 scene
->data
.head
= block
;
317 * Return number of bytes used for all bin data within a scene.
318 * This does not include resources (textures) referenced by the scene.
321 lp_scene_data_size( const struct lp_scene
*scene
)
324 const struct data_block
*block
;
325 for (block
= scene
->data
.head
; block
; block
= block
->next
) {
334 * Add a reference to a resource by the scene.
337 lp_scene_add_resource_reference(struct lp_scene
*scene
,
338 struct pipe_resource
*resource
,
339 boolean initializing_scene
)
341 struct resource_ref
*ref
, **last
= &scene
->resources
;
344 /* Look at existing resource blocks:
346 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
348 /* Search for this resource:
350 for (i
= 0; i
< ref
->count
; i
++)
351 if (ref
->resource
[i
] == resource
)
354 /* If the block is half-empty, this is the last block. Append
355 * the reference here.
357 if (ref
->count
< RESOURCE_REF_SZ
)
363 /* Otherwise, need to create a new block:
365 *last
= lp_scene_alloc(scene
, sizeof(struct resource_ref
));
368 memset(ref
, 0, sizeof *ref
);
375 pipe_resource_reference(&ref
->resource
[ref
->count
++], resource
);
376 scene
->resource_reference_size
+= llvmpipe_resource_size(resource
);
378 /* Heuristic to advise scene flushes. This isn't helpful in the
379 * initial setup of the scene, but after that point flush on the
380 * next resource added which exceeds 64MB in referenced texture
383 if (!initializing_scene
&&
384 scene
->resource_reference_size
>= LP_SCENE_MAX_RESOURCE_SIZE
)
392 * Does this scene have a reference to the given resource?
395 lp_scene_is_resource_referenced(const struct lp_scene
*scene
,
396 const struct pipe_resource
*resource
)
398 const struct resource_ref
*ref
;
401 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
402 for (i
= 0; i
< ref
->count
; i
++)
403 if (ref
->resource
[i
] == resource
)
413 /** advance curr_x,y to the next bin */
415 next_bin(struct lp_scene
*scene
)
418 if (scene
->curr_x
>= scene
->tiles_x
) {
422 if (scene
->curr_y
>= scene
->tiles_y
) {
431 lp_scene_bin_iter_begin( struct lp_scene
*scene
)
433 scene
->curr_x
= scene
->curr_y
= -1;
438 * Return pointer to next bin to be rendered.
439 * The lp_scene::curr_x and ::curr_y fields will be advanced.
440 * Multiple rendering threads will call this function to get a chunk
441 * of work (a bin) to work on.
444 lp_scene_bin_iter_next( struct lp_scene
*scene
)
446 struct cmd_bin
*bin
= NULL
;
448 pipe_mutex_lock(scene
->mutex
);
450 if (scene
->curr_x
< 0) {
455 else if (!next_bin(scene
)) {
456 /* no more bins left */
460 bin
= lp_scene_get_bin(scene
, scene
->curr_x
, scene
->curr_y
);
463 /*printf("return bin %p at %d, %d\n", (void *) bin, *bin_x, *bin_y);*/
464 pipe_mutex_unlock(scene
->mutex
);
469 void lp_scene_begin_binning( struct lp_scene
*scene
,
470 struct pipe_framebuffer_state
*fb
)
472 assert(lp_scene_is_empty(scene
));
474 util_copy_framebuffer_state(&scene
->fb
, fb
);
476 scene
->tiles_x
= align(fb
->width
, TILE_SIZE
) / TILE_SIZE
;
477 scene
->tiles_y
= align(fb
->height
, TILE_SIZE
) / TILE_SIZE
;
479 assert(scene
->tiles_x
<= TILES_X
);
480 assert(scene
->tiles_y
<= TILES_Y
);
484 void lp_scene_end_binning( struct lp_scene
*scene
)
486 if (LP_DEBUG
& DEBUG_SCENE
) {
487 debug_printf("rasterize scene:\n");
488 debug_printf(" scene_size: %u\n",
490 debug_printf(" data size: %u\n",
491 lp_scene_data_size(scene
));
494 lp_debug_bins( scene
);