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
);
63 CALLOC_STRUCT(data_block
);
65 pipe_mutex_init(scene
->mutex
);
72 * Free all data associated with the given scene, and the scene itself.
75 lp_scene_destroy(struct lp_scene
*scene
)
77 lp_fence_reference(&scene
->fence
, NULL
);
78 pipe_mutex_destroy(scene
->mutex
);
79 assert(scene
->data
.head
->next
== NULL
);
80 FREE(scene
->data
.head
);
86 * Check if the scene's bins are all empty.
87 * For debugging purposes.
90 lp_scene_is_empty(struct lp_scene
*scene
)
94 for (y
= 0; y
< TILES_Y
; y
++) {
95 for (x
= 0; x
< TILES_X
; x
++) {
96 const struct cmd_bin
*bin
= lp_scene_get_bin(scene
, x
, y
);
106 /* Returns true if there has ever been a failed allocation attempt in
107 * this scene. Used in triangle emit to avoid having to check success
111 lp_scene_is_oom(struct lp_scene
*scene
)
113 return scene
->alloc_failed
;
117 /* Remove all commands from a bin. Tries to reuse some of the memory
118 * allocated to the bin, however.
121 lp_scene_bin_reset(struct lp_scene
*scene
, unsigned x
, unsigned y
)
123 struct cmd_bin
*bin
= lp_scene_get_bin(scene
, x
, y
);
125 bin
->head
= bin
->tail
;
127 bin
->tail
->next
= NULL
;
128 bin
->tail
->count
= 0;
134 lp_scene_begin_rasterization(struct lp_scene
*scene
)
136 const struct pipe_framebuffer_state
*fb
= &scene
->fb
;
139 //LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
141 for (i
= 0; i
< scene
->fb
.nr_cbufs
; i
++) {
142 struct pipe_surface
*cbuf
= scene
->fb
.cbufs
[i
];
143 assert(cbuf
->u
.tex
.first_layer
== cbuf
->u
.tex
.last_layer
);
144 scene
->cbufs
[i
].stride
= llvmpipe_resource_stride(cbuf
->texture
,
147 scene
->cbufs
[i
].map
= llvmpipe_resource_map(cbuf
->texture
,
149 cbuf
->u
.tex
.first_layer
,
150 LP_TEX_USAGE_READ_WRITE
,
151 LP_TEX_LAYOUT_LINEAR
);
155 struct pipe_surface
*zsbuf
= scene
->fb
.zsbuf
;
156 assert(zsbuf
->u
.tex
.first_layer
== zsbuf
->u
.tex
.last_layer
);
157 scene
->zsbuf
.stride
= llvmpipe_resource_stride(zsbuf
->texture
, zsbuf
->u
.tex
.level
);
158 scene
->zsbuf
.blocksize
=
159 util_format_get_blocksize(zsbuf
->texture
->format
);
161 scene
->zsbuf
.map
= llvmpipe_resource_map(zsbuf
->texture
,
163 zsbuf
->u
.tex
.first_layer
,
164 LP_TEX_USAGE_READ_WRITE
,
173 * Free all the temporary data in a scene.
176 lp_scene_end_rasterization(struct lp_scene
*scene
)
180 /* Unmap color buffers */
181 for (i
= 0; i
< scene
->fb
.nr_cbufs
; i
++) {
182 if (scene
->cbufs
[i
].map
) {
183 struct pipe_surface
*cbuf
= scene
->fb
.cbufs
[i
];
184 llvmpipe_resource_unmap(cbuf
->texture
,
186 cbuf
->u
.tex
.first_layer
);
187 scene
->cbufs
[i
].map
= NULL
;
191 /* Unmap z/stencil buffer */
192 if (scene
->zsbuf
.map
) {
193 struct pipe_surface
*zsbuf
= scene
->fb
.zsbuf
;
194 llvmpipe_resource_unmap(zsbuf
->texture
,
196 zsbuf
->u
.tex
.first_layer
);
197 scene
->zsbuf
.map
= NULL
;
200 /* Reset all command lists:
202 for (i
= 0; i
< scene
->tiles_x
; i
++) {
203 for (j
= 0; j
< scene
->tiles_y
; j
++) {
204 struct cmd_bin
*bin
= lp_scene_get_bin(scene
, i
, j
);
207 bin
->last_state
= NULL
;
211 /* If there are any bins which weren't cleared by the loop above,
212 * they will be caught (on debug builds at least) by this assert:
214 assert(lp_scene_is_empty(scene
));
216 /* Decrement texture ref counts
219 struct resource_ref
*ref
;
222 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
223 for (i
= 0; i
< ref
->count
; i
++) {
224 if (LP_DEBUG
& DEBUG_SETUP
)
225 debug_printf("resource %d: %p %dx%d sz %d\n",
227 (void *) ref
->resource
[i
],
228 ref
->resource
[i
]->width0
,
229 ref
->resource
[i
]->height0
,
230 llvmpipe_resource_size(ref
->resource
[i
]));
232 pipe_resource_reference(&ref
->resource
[i
], NULL
);
236 if (LP_DEBUG
& DEBUG_SETUP
)
237 debug_printf("scene %d resources, sz %d\n",
238 j
, scene
->resource_reference_size
);
241 /* Free all scene data blocks:
244 struct data_block_list
*list
= &scene
->data
;
245 struct data_block
*block
, *tmp
;
247 for (block
= list
->head
->next
; block
; block
= tmp
) {
252 list
->head
->next
= NULL
;
253 list
->head
->used
= 0;
256 lp_fence_reference(&scene
->fence
, NULL
);
258 scene
->resources
= NULL
;
259 scene
->scene_size
= 0;
260 scene
->resource_reference_size
= 0;
262 scene
->has_depthstencil_clear
= FALSE
;
263 scene
->alloc_failed
= FALSE
;
265 util_unreference_framebuffer_state( &scene
->fb
);
274 lp_scene_new_cmd_block( struct lp_scene
*scene
,
275 struct cmd_bin
*bin
)
277 struct cmd_block
*block
= lp_scene_alloc(scene
, sizeof(struct cmd_block
));
280 bin
->tail
->next
= block
;
287 //memset(block, 0, sizeof *block);
296 lp_scene_new_data_block( struct lp_scene
*scene
)
298 if (scene
->scene_size
+ DATA_BLOCK_SIZE
> LP_SCENE_MAX_SIZE
) {
299 if (0) debug_printf("%s: failed\n", __FUNCTION__
);
300 scene
->alloc_failed
= TRUE
;
304 struct data_block
*block
= MALLOC_STRUCT(data_block
);
308 scene
->scene_size
+= sizeof *block
;
311 block
->next
= scene
->data
.head
;
312 scene
->data
.head
= block
;
320 * Return number of bytes used for all bin data within a scene.
321 * This does not include resources (textures) referenced by the scene.
324 lp_scene_data_size( const struct lp_scene
*scene
)
327 const struct data_block
*block
;
328 for (block
= scene
->data
.head
; block
; block
= block
->next
) {
337 * Add a reference to a resource by the scene.
340 lp_scene_add_resource_reference(struct lp_scene
*scene
,
341 struct pipe_resource
*resource
,
342 boolean initializing_scene
)
344 struct resource_ref
*ref
, **last
= &scene
->resources
;
347 /* Look at existing resource blocks:
349 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
352 /* Search for this resource:
354 for (i
= 0; i
< ref
->count
; i
++)
355 if (ref
->resource
[i
] == resource
)
358 if (ref
->count
< RESOURCE_REF_SZ
) {
359 /* If the block is half-empty, then append the reference here.
365 /* Create a new block if no half-empty block was found.
368 assert(*last
== NULL
);
369 *last
= lp_scene_alloc(scene
, sizeof *ref
);
374 memset(ref
, 0, sizeof *ref
);
377 /* Append the reference to the reference block.
379 pipe_resource_reference(&ref
->resource
[ref
->count
++], resource
);
380 scene
->resource_reference_size
+= llvmpipe_resource_size(resource
);
382 /* Heuristic to advise scene flushes. This isn't helpful in the
383 * initial setup of the scene, but after that point flush on the
384 * next resource added which exceeds 64MB in referenced texture
387 if (!initializing_scene
&&
388 scene
->resource_reference_size
>= LP_SCENE_MAX_RESOURCE_SIZE
)
396 * Does this scene have a reference to the given resource?
399 lp_scene_is_resource_referenced(const struct lp_scene
*scene
,
400 const struct pipe_resource
*resource
)
402 const struct resource_ref
*ref
;
405 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
406 for (i
= 0; i
< ref
->count
; i
++)
407 if (ref
->resource
[i
] == resource
)
417 /** advance curr_x,y to the next bin */
419 next_bin(struct lp_scene
*scene
)
422 if (scene
->curr_x
>= scene
->tiles_x
) {
426 if (scene
->curr_y
>= scene
->tiles_y
) {
435 lp_scene_bin_iter_begin( struct lp_scene
*scene
)
437 scene
->curr_x
= scene
->curr_y
= -1;
442 * Return pointer to next bin to be rendered.
443 * The lp_scene::curr_x and ::curr_y fields will be advanced.
444 * Multiple rendering threads will call this function to get a chunk
445 * of work (a bin) to work on.
448 lp_scene_bin_iter_next( struct lp_scene
*scene
)
450 struct cmd_bin
*bin
= NULL
;
452 pipe_mutex_lock(scene
->mutex
);
454 if (scene
->curr_x
< 0) {
459 else if (!next_bin(scene
)) {
460 /* no more bins left */
464 bin
= lp_scene_get_bin(scene
, scene
->curr_x
, scene
->curr_y
);
467 /*printf("return bin %p at %d, %d\n", (void *) bin, *bin_x, *bin_y);*/
468 pipe_mutex_unlock(scene
->mutex
);
473 void lp_scene_begin_binning( struct lp_scene
*scene
,
474 struct pipe_framebuffer_state
*fb
)
476 assert(lp_scene_is_empty(scene
));
478 util_copy_framebuffer_state(&scene
->fb
, fb
);
480 scene
->tiles_x
= align(fb
->width
, TILE_SIZE
) / TILE_SIZE
;
481 scene
->tiles_y
= align(fb
->height
, TILE_SIZE
) / TILE_SIZE
;
483 assert(scene
->tiles_x
<= TILES_X
);
484 assert(scene
->tiles_y
<= TILES_Y
);
488 void lp_scene_end_binning( struct lp_scene
*scene
)
490 if (LP_DEBUG
& DEBUG_SCENE
) {
491 debug_printf("rasterize scene:\n");
492 debug_printf(" scene_size: %u\n",
494 debug_printf(" data size: %u\n",
495 lp_scene_data_size(scene
));
498 lp_debug_bins( scene
);