50c1db2548872858c7f705f5246a8c1f4c1cf8a7
2 * Copyright © 2012 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
27 #include "main/mtypes.h"
29 /* Command size is a number of bytes stored in a short. */
30 #define MARSHAL_MAX_CMD_SIZE 65535
38 enum marshal_dispatch_cmd_id
;
42 /** The worker thread that asynchronously processes our GL commands. */
46 * Mutex used for synchronizing between the main thread and the worker
49 pthread_mutex_t mutex
;
51 /** Condvar used for waking the worker thread. */
52 pthread_cond_t new_work
;
54 /** Condvar used for waking the main thread. */
55 pthread_cond_t work_done
;
57 /** Used to tell the worker thread to quit */
60 /** Indicates that the worker thread is currently processing a batch */
64 * Singly-linked list of command batches that are awaiting execution by
65 * a thread pool task. NULL if empty.
67 struct glthread_batch
*batch_queue
;
70 * Tail pointer for appending batches to the end of batch_queue. If the
71 * queue is empty, this points to batch_queue.
73 struct glthread_batch
**batch_queue_tail
;
76 * Batch containing commands that are being prepared for insertion into
77 * batch_queue. NULL if there are no such commands.
79 * Since this is only used by the main thread, it doesn't need the mutex to
82 struct glthread_batch
*batch
;
85 * Tracks on the main thread side whether the current vertex array binding
88 bool vertex_array_is_vbo
;
91 * Tracks on the main thread side whether the current element array (index
92 * buffer) binding is in a VBO.
94 bool element_array_is_vbo
;
98 * A single batch of commands queued up for later execution by a thread pool
101 struct glthread_batch
104 * Next batch of commands to execute after this batch, or NULL if this is
105 * the last set of commands queued. Protected by ctx->Marshal.Mutex.
107 struct glthread_batch
*next
;
110 * Amount of data used by batch commands, in bytes.
115 * Data contained in the command buffer.
117 uint8_t buffer
[MARSHAL_MAX_CMD_SIZE
];
120 void _mesa_glthread_init(struct gl_context
*ctx
);
121 void _mesa_glthread_destroy(struct gl_context
*ctx
);
123 void _mesa_glthread_restore_dispatch(struct gl_context
*ctx
);
124 void _mesa_glthread_flush_batch(struct gl_context
*ctx
);
125 void _mesa_glthread_finish(struct gl_context
*ctx
);
127 #else /* HAVE_PTHREAD */
130 _mesa_glthread_init(struct gl_context
*ctx
)
135 _mesa_glthread_destroy(struct gl_context
*ctx
)
140 _mesa_glthread_finish(struct gl_context
*ctx
)
145 _mesa_glthread_restore_dispatch(struct gl_context
*ctx
)
150 _mesa_glthread_flush_batch(struct gl_context
*ctx
)
154 #endif /* !HAVE_PTHREAD */
155 #endif /* _GLTHREAD_H*/