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/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
);
68 /* Do some scene limit sanity checks here */
70 size_t maxBins
= TILES_X
* TILES_Y
;
71 size_t maxCommandBytes
= sizeof(struct cmd_block
) * maxBins
;
72 size_t maxCommandPlusData
= maxCommandBytes
+ DATA_BLOCK_SIZE
;
73 /* We'll need at least one command block per bin. Make sure that's
74 * less than the max allowed scene size.
76 assert(maxCommandBytes
< LP_SCENE_MAX_SIZE
);
77 /* We'll also need space for at least one other data block */
78 assert(maxCommandPlusData
<= LP_SCENE_MAX_SIZE
);
87 * Free all data associated with the given scene, and the scene itself.
90 lp_scene_destroy(struct lp_scene
*scene
)
92 lp_fence_reference(&scene
->fence
, NULL
);
93 pipe_mutex_destroy(scene
->mutex
);
94 assert(scene
->data
.head
->next
== NULL
);
95 FREE(scene
->data
.head
);
101 * Check if the scene's bins are all empty.
102 * For debugging purposes.
105 lp_scene_is_empty(struct lp_scene
*scene
)
109 for (y
= 0; y
< TILES_Y
; y
++) {
110 for (x
= 0; x
< TILES_X
; x
++) {
111 const struct cmd_bin
*bin
= lp_scene_get_bin(scene
, x
, y
);
121 /* Returns true if there has ever been a failed allocation attempt in
122 * this scene. Used in triangle emit to avoid having to check success
126 lp_scene_is_oom(struct lp_scene
*scene
)
128 return scene
->alloc_failed
;
132 /* Remove all commands from a bin. Tries to reuse some of the memory
133 * allocated to the bin, however.
136 lp_scene_bin_reset(struct lp_scene
*scene
, unsigned x
, unsigned y
)
138 struct cmd_bin
*bin
= lp_scene_get_bin(scene
, x
, y
);
140 bin
->last_state
= NULL
;
141 bin
->head
= bin
->tail
;
143 bin
->tail
->next
= NULL
;
144 bin
->tail
->count
= 0;
150 lp_scene_begin_rasterization(struct lp_scene
*scene
)
152 const struct pipe_framebuffer_state
*fb
= &scene
->fb
;
155 //LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
157 for (i
= 0; i
< scene
->fb
.nr_cbufs
; i
++) {
158 struct pipe_surface
*cbuf
= scene
->fb
.cbufs
[i
];
161 scene
->cbufs
[i
].stride
= 0;
162 scene
->cbufs
[i
].layer_stride
= 0;
163 scene
->cbufs
[i
].map
= NULL
;
167 if (llvmpipe_resource_is_texture(cbuf
->texture
)) {
168 scene
->cbufs
[i
].stride
= llvmpipe_resource_stride(cbuf
->texture
,
170 scene
->cbufs
[i
].layer_stride
= llvmpipe_layer_stride(cbuf
->texture
,
173 scene
->cbufs
[i
].map
= llvmpipe_resource_map(cbuf
->texture
,
175 cbuf
->u
.tex
.first_layer
,
176 LP_TEX_USAGE_READ_WRITE
);
179 struct llvmpipe_resource
*lpr
= llvmpipe_resource(cbuf
->texture
);
180 unsigned pixstride
= util_format_get_blocksize(cbuf
->format
);
181 scene
->cbufs
[i
].stride
= cbuf
->texture
->width0
;
182 scene
->cbufs
[i
].layer_stride
= 0;
183 scene
->cbufs
[i
].map
= lpr
->data
;
184 scene
->cbufs
[i
].map
+= cbuf
->u
.buf
.first_element
* pixstride
;
189 struct pipe_surface
*zsbuf
= scene
->fb
.zsbuf
;
190 scene
->zsbuf
.stride
= llvmpipe_resource_stride(zsbuf
->texture
, zsbuf
->u
.tex
.level
);
191 scene
->zsbuf
.layer_stride
= llvmpipe_layer_stride(zsbuf
->texture
, zsbuf
->u
.tex
.level
);
193 scene
->zsbuf
.map
= llvmpipe_resource_map(zsbuf
->texture
,
195 zsbuf
->u
.tex
.first_layer
,
196 LP_TEX_USAGE_READ_WRITE
);
204 * Free all the temporary data in a scene.
207 lp_scene_end_rasterization(struct lp_scene
*scene
)
211 /* Unmap color buffers */
212 for (i
= 0; i
< scene
->fb
.nr_cbufs
; i
++) {
213 if (scene
->cbufs
[i
].map
) {
214 struct pipe_surface
*cbuf
= scene
->fb
.cbufs
[i
];
215 if (llvmpipe_resource_is_texture(cbuf
->texture
)) {
216 llvmpipe_resource_unmap(cbuf
->texture
,
218 cbuf
->u
.tex
.first_layer
);
220 scene
->cbufs
[i
].map
= NULL
;
224 /* Unmap z/stencil buffer */
225 if (scene
->zsbuf
.map
) {
226 struct pipe_surface
*zsbuf
= scene
->fb
.zsbuf
;
227 llvmpipe_resource_unmap(zsbuf
->texture
,
229 zsbuf
->u
.tex
.first_layer
);
230 scene
->zsbuf
.map
= NULL
;
233 /* Reset all command lists:
235 for (i
= 0; i
< scene
->tiles_x
; i
++) {
236 for (j
= 0; j
< scene
->tiles_y
; j
++) {
237 struct cmd_bin
*bin
= lp_scene_get_bin(scene
, i
, j
);
240 bin
->last_state
= NULL
;
244 /* If there are any bins which weren't cleared by the loop above,
245 * they will be caught (on debug builds at least) by this assert:
247 assert(lp_scene_is_empty(scene
));
249 /* Decrement texture ref counts
252 struct resource_ref
*ref
;
255 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
256 for (i
= 0; i
< ref
->count
; i
++) {
257 if (LP_DEBUG
& DEBUG_SETUP
)
258 debug_printf("resource %d: %p %dx%d sz %d\n",
260 (void *) ref
->resource
[i
],
261 ref
->resource
[i
]->width0
,
262 ref
->resource
[i
]->height0
,
263 llvmpipe_resource_size(ref
->resource
[i
]));
265 pipe_resource_reference(&ref
->resource
[i
], NULL
);
269 if (LP_DEBUG
& DEBUG_SETUP
)
270 debug_printf("scene %d resources, sz %d\n",
271 j
, scene
->resource_reference_size
);
274 /* Free all scene data blocks:
277 struct data_block_list
*list
= &scene
->data
;
278 struct data_block
*block
, *tmp
;
280 for (block
= list
->head
->next
; block
; block
= tmp
) {
285 list
->head
->next
= NULL
;
286 list
->head
->used
= 0;
289 lp_fence_reference(&scene
->fence
, NULL
);
291 scene
->resources
= NULL
;
292 scene
->scene_size
= 0;
293 scene
->resource_reference_size
= 0;
295 scene
->alloc_failed
= FALSE
;
297 util_unreference_framebuffer_state( &scene
->fb
);
306 lp_scene_new_cmd_block( struct lp_scene
*scene
,
307 struct cmd_bin
*bin
)
309 struct cmd_block
*block
= lp_scene_alloc(scene
, sizeof(struct cmd_block
));
312 bin
->tail
->next
= block
;
319 //memset(block, 0, sizeof *block);
328 lp_scene_new_data_block( struct lp_scene
*scene
)
330 if (scene
->scene_size
+ DATA_BLOCK_SIZE
> LP_SCENE_MAX_SIZE
) {
331 if (0) debug_printf("%s: failed\n", __FUNCTION__
);
332 scene
->alloc_failed
= TRUE
;
336 struct data_block
*block
= MALLOC_STRUCT(data_block
);
340 scene
->scene_size
+= sizeof *block
;
343 block
->next
= scene
->data
.head
;
344 scene
->data
.head
= block
;
352 * Return number of bytes used for all bin data within a scene.
353 * This does not include resources (textures) referenced by the scene.
356 lp_scene_data_size( const struct lp_scene
*scene
)
359 const struct data_block
*block
;
360 for (block
= scene
->data
.head
; block
; block
= block
->next
) {
369 * Add a reference to a resource by the scene.
372 lp_scene_add_resource_reference(struct lp_scene
*scene
,
373 struct pipe_resource
*resource
,
374 boolean initializing_scene
)
376 struct resource_ref
*ref
, **last
= &scene
->resources
;
379 /* Look at existing resource blocks:
381 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
384 /* Search for this resource:
386 for (i
= 0; i
< ref
->count
; i
++)
387 if (ref
->resource
[i
] == resource
)
390 if (ref
->count
< RESOURCE_REF_SZ
) {
391 /* If the block is half-empty, then append the reference here.
397 /* Create a new block if no half-empty block was found.
400 assert(*last
== NULL
);
401 *last
= lp_scene_alloc(scene
, sizeof *ref
);
406 memset(ref
, 0, sizeof *ref
);
409 /* Append the reference to the reference block.
411 pipe_resource_reference(&ref
->resource
[ref
->count
++], resource
);
412 scene
->resource_reference_size
+= llvmpipe_resource_size(resource
);
414 /* Heuristic to advise scene flushes. This isn't helpful in the
415 * initial setup of the scene, but after that point flush on the
416 * next resource added which exceeds 64MB in referenced texture
419 if (!initializing_scene
&&
420 scene
->resource_reference_size
>= LP_SCENE_MAX_RESOURCE_SIZE
)
428 * Does this scene have a reference to the given resource?
431 lp_scene_is_resource_referenced(const struct lp_scene
*scene
,
432 const struct pipe_resource
*resource
)
434 const struct resource_ref
*ref
;
437 for (ref
= scene
->resources
; ref
; ref
= ref
->next
) {
438 for (i
= 0; i
< ref
->count
; i
++)
439 if (ref
->resource
[i
] == resource
)
449 /** advance curr_x,y to the next bin */
451 next_bin(struct lp_scene
*scene
)
454 if (scene
->curr_x
>= scene
->tiles_x
) {
458 if (scene
->curr_y
>= scene
->tiles_y
) {
467 lp_scene_bin_iter_begin( struct lp_scene
*scene
)
469 scene
->curr_x
= scene
->curr_y
= -1;
474 * Return pointer to next bin to be rendered.
475 * The lp_scene::curr_x and ::curr_y fields will be advanced.
476 * Multiple rendering threads will call this function to get a chunk
477 * of work (a bin) to work on.
480 lp_scene_bin_iter_next( struct lp_scene
*scene
, int *x
, int *y
)
482 struct cmd_bin
*bin
= NULL
;
484 pipe_mutex_lock(scene
->mutex
);
486 if (scene
->curr_x
< 0) {
491 else if (!next_bin(scene
)) {
492 /* no more bins left */
496 bin
= lp_scene_get_bin(scene
, scene
->curr_x
, scene
->curr_y
);
501 /*printf("return bin %p at %d, %d\n", (void *) bin, *bin_x, *bin_y);*/
502 pipe_mutex_unlock(scene
->mutex
);
507 void lp_scene_begin_binning( struct lp_scene
*scene
,
508 struct pipe_framebuffer_state
*fb
, boolean discard
)
511 unsigned max_layer
= ~0;
513 assert(lp_scene_is_empty(scene
));
515 scene
->discard
= discard
;
516 util_copy_framebuffer_state(&scene
->fb
, fb
);
518 scene
->tiles_x
= align(fb
->width
, TILE_SIZE
) / TILE_SIZE
;
519 scene
->tiles_y
= align(fb
->height
, TILE_SIZE
) / TILE_SIZE
;
520 assert(scene
->tiles_x
<= TILES_X
);
521 assert(scene
->tiles_y
<= TILES_Y
);
524 * Determine how many layers the fb has (used for clamping layer value).
525 * OpenGL (but not d3d10) permits different amount of layers per rt, however
526 * results are undefined if layer exceeds the amount of layers of ANY
527 * attachment hence don't need separate per cbuf and zsbuf max.
529 for (i
= 0; i
< scene
->fb
.nr_cbufs
; i
++) {
530 struct pipe_surface
*cbuf
= scene
->fb
.cbufs
[i
];
532 if (llvmpipe_resource_is_texture(cbuf
->texture
)) {
533 max_layer
= MIN2(max_layer
,
534 cbuf
->u
.tex
.last_layer
- cbuf
->u
.tex
.first_layer
);
542 struct pipe_surface
*zsbuf
= scene
->fb
.zsbuf
;
543 max_layer
= MIN2(max_layer
, zsbuf
->u
.tex
.last_layer
- zsbuf
->u
.tex
.first_layer
);
545 scene
->fb_max_layer
= max_layer
;
549 void lp_scene_end_binning( struct lp_scene
*scene
)
551 if (LP_DEBUG
& DEBUG_SCENE
) {
552 debug_printf("rasterize scene:\n");
553 debug_printf(" scene_size: %u\n",
555 debug_printf(" data size: %u\n",
556 lp_scene_data_size(scene
));
559 lp_debug_bins( scene
);