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 **************************************************************************/
30 * Binner data structures and bin-related functions.
31 * Note: the "setup" code is concerned with building scenes while
32 * The "rast" code is concerned with consuming/executing scenes.
38 #include "os/os_thread.h"
39 #include "lp_tile_soa.h"
43 struct lp_scene_queue
;
45 /* We're limited to 2K by 2K for 32bit fixed point rasterization.
46 * Will need a 64-bit version for larger framebuffers.
48 #define TILES_X (LP_MAX_WIDTH / TILE_SIZE)
49 #define TILES_Y (LP_MAX_HEIGHT / TILE_SIZE)
52 #define CMD_BLOCK_MAX 128
53 #define DATA_BLOCK_SIZE (64 * 1024)
55 /* Scene temporary storage is clamped to this size:
57 #define LP_SCENE_MAX_SIZE (4*1024*1024)
59 /* The maximum amount of texture storage referenced by a scene is
60 * clamped ot this size:
62 #define LP_SCENE_MAX_RESOURCE_SIZE (64*1024*1024)
65 /* switch to a non-pointer value for this:
67 typedef void (*lp_rast_cmd_func
)( struct lp_rasterizer_task
*,
68 const union lp_rast_cmd_arg
);
72 uint8_t cmd
[CMD_BLOCK_MAX
];
73 union lp_rast_cmd_arg arg
[CMD_BLOCK_MAX
];
75 struct cmd_block
*next
;
78 struct cmd_block_list
{
79 struct cmd_block
*head
;
80 struct cmd_block
*tail
;
84 ubyte data
[DATA_BLOCK_SIZE
];
86 struct data_block
*next
;
92 * For each screen tile we have one of these bins.
97 struct cmd_block
*head
;
98 struct cmd_block
*tail
;
103 * This stores bulk data which is used for all memory allocations
106 * Examples include triangle data and state data. The commands in
107 * the per-tile bins will point to chunks of data in this structure.
109 * Include the first block of data statically to ensure we can always
110 * initiate a scene without relying on malloc succeeding.
112 struct data_block_list
{
113 struct data_block first
;
114 struct data_block
*head
;
120 * All bins and bin data are contained here.
121 * Per-bin data goes into the 'tile' bins.
122 * Shared data goes into the 'data' buffer.
124 * When there are multiple threads, will want to double-buffer between
128 struct pipe_context
*pipe
;
129 struct lp_fence
*fence
;
131 /* Framebuffer mappings - valid only between begin_rasterization()
132 * and end_rasterization().
138 } zsbuf
, cbufs
[PIPE_MAX_COLOR_BUFS
];
140 /** the framebuffer to render the scene into */
141 struct pipe_framebuffer_state fb
;
143 /** list of resources referenced by the scene commands */
144 struct resource_ref
*resources
;
146 /** Total memory used by the scene (in bytes). This sums all the
147 * data blocks and counts all bins, state, resource references and
148 * other random allocations within the scene.
152 /** Sum of sizes of all resources referenced by the scene. Sums
153 * all the textures read by the scene:
155 unsigned resource_reference_size
;
157 boolean alloc_failed
;
158 boolean has_depthstencil_clear
;
161 * Number of active tiles in each dimension.
162 * This basically the framebuffer size divided by tile size
164 unsigned tiles_x
, tiles_y
;
166 int curr_x
, curr_y
; /**< for iterating over bins */
169 struct cmd_bin tile
[TILES_X
][TILES_Y
];
170 struct data_block_list data
;
175 struct lp_scene
*lp_scene_create(struct pipe_context
*pipe
);
177 void lp_scene_destroy(struct lp_scene
*scene
);
179 boolean
lp_scene_is_empty(struct lp_scene
*scene
);
180 boolean
lp_scene_is_oom(struct lp_scene
*scene
);
183 struct data_block
*lp_scene_new_data_block( struct lp_scene
*scene
);
185 struct cmd_block
*lp_scene_new_cmd_block( struct lp_scene
*scene
,
186 struct cmd_bin
*bin
);
188 boolean
lp_scene_add_resource_reference(struct lp_scene
*scene
,
189 struct pipe_resource
*resource
,
190 boolean initializing_scene
);
192 boolean
lp_scene_is_resource_referenced(const struct lp_scene
*scene
,
193 const struct pipe_resource
*resource
);
197 * Allocate space for a command/data in the bin's data buffer.
198 * Grow the block list if needed.
201 lp_scene_alloc( struct lp_scene
*scene
, unsigned size
)
203 struct data_block_list
*list
= &scene
->data
;
204 struct data_block
*block
= list
->head
;
206 assert(size
<= DATA_BLOCK_SIZE
);
207 assert(block
!= NULL
);
209 if (LP_DEBUG
& DEBUG_MEM
)
210 debug_printf("alloc %u block %u/%u tot %u/%u\n",
211 size
, block
->used
, DATA_BLOCK_SIZE
,
212 scene
->scene_size
, LP_SCENE_MAX_SIZE
);
214 if (block
->used
+ size
> DATA_BLOCK_SIZE
) {
215 block
= lp_scene_new_data_block( scene
);
223 ubyte
*data
= block
->data
+ block
->used
;
231 * As above, but with specific alignment.
234 lp_scene_alloc_aligned( struct lp_scene
*scene
, unsigned size
,
237 struct data_block_list
*list
= &scene
->data
;
238 struct data_block
*block
= list
->head
;
240 assert(block
!= NULL
);
242 if (LP_DEBUG
& DEBUG_MEM
)
243 debug_printf("alloc %u block %u/%u tot %u/%u\n",
244 size
+ alignment
- 1,
245 block
->used
, DATA_BLOCK_SIZE
,
246 scene
->scene_size
, LP_SCENE_MAX_SIZE
);
248 if (block
->used
+ size
+ alignment
- 1 > DATA_BLOCK_SIZE
) {
249 block
= lp_scene_new_data_block( scene
);
255 ubyte
*data
= block
->data
+ block
->used
;
256 unsigned offset
= (((uintptr_t)data
+ alignment
- 1) & ~(alignment
- 1)) - (uintptr_t)data
;
257 block
->used
+= offset
+ size
;
258 return data
+ offset
;
263 /* Put back data if we decide not to use it, eg. culled triangles.
266 lp_scene_putback_data( struct lp_scene
*scene
, unsigned size
)
268 struct data_block_list
*list
= &scene
->data
;
269 assert(list
->head
&& list
->head
->used
>= size
);
270 list
->head
->used
-= size
;
274 /** Return pointer to a particular tile's bin. */
275 static INLINE
struct cmd_bin
*
276 lp_scene_get_bin(struct lp_scene
*scene
, unsigned x
, unsigned y
)
278 return &scene
->tile
[x
][y
];
282 /** Remove all commands from a bin */
284 lp_scene_bin_reset(struct lp_scene
*scene
, unsigned x
, unsigned y
);
287 /* Add a command to bin[x][y].
289 static INLINE boolean
290 lp_scene_bin_command( struct lp_scene
*scene
,
291 unsigned x
, unsigned y
,
293 union lp_rast_cmd_arg arg
)
295 struct cmd_bin
*bin
= lp_scene_get_bin(scene
, x
, y
);
296 struct cmd_block
*tail
= bin
->tail
;
298 assert(x
< scene
->tiles_x
);
299 assert(y
< scene
->tiles_y
);
300 assert(cmd
<= LP_RAST_OP_END_QUERY
);
302 if (tail
== NULL
|| tail
->count
== CMD_BLOCK_MAX
) {
303 tail
= lp_scene_new_cmd_block( scene
, bin
);
307 assert(tail
->count
== 0);
311 unsigned i
= tail
->count
;
312 tail
->cmd
[i
] = cmd
& LP_RAST_OP_MASK
;
321 /* Add a command to all active bins.
323 static INLINE boolean
324 lp_scene_bin_everywhere( struct lp_scene
*scene
,
326 const union lp_rast_cmd_arg arg
)
329 for (i
= 0; i
< scene
->tiles_x
; i
++) {
330 for (j
= 0; j
< scene
->tiles_y
; j
++) {
331 if (!lp_scene_bin_command( scene
, i
, j
, cmd
, arg
))
340 static INLINE
unsigned
341 lp_scene_get_num_bins( const struct lp_scene
*scene
)
343 return scene
->tiles_x
* scene
->tiles_y
;
348 lp_scene_bin_iter_begin( struct lp_scene
*scene
);
351 lp_scene_bin_iter_next( struct lp_scene
*scene
);
355 /* Begin/end binning of a scene
358 lp_scene_begin_binning( struct lp_scene
*scene
,
359 struct pipe_framebuffer_state
*fb
);
362 lp_scene_end_binning( struct lp_scene
*scene
);
365 /* Begin/end rasterization of a scene
368 lp_scene_begin_rasterization(struct lp_scene
*scene
);
371 lp_scene_end_rasterization(struct lp_scene
*scene
);
377 #endif /* LP_BIN_H */