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
36 enum marshal_dispatch_cmd_id
;
40 /** The worker thread that asynchronously processes our GL commands. */
44 * Mutex used for synchronizing between the main thread and the worker
47 pthread_mutex_t mutex
;
49 /** Condvar used for waking the worker thread. */
50 pthread_cond_t new_work
;
52 /** Condvar used for waking the main thread. */
53 pthread_cond_t work_done
;
55 /** Used to tell the worker thread to quit */
58 /** Indicates that the worker thread is currently processing a batch */
62 * Singly-linked list of command batches that are awaiting execution by
63 * a thread pool task. NULL if empty.
65 struct glthread_batch
*batch_queue
;
68 * Tail pointer for appending batches to the end of batch_queue. If the
69 * queue is empty, this points to batch_queue.
71 struct glthread_batch
**batch_queue_tail
;
74 * Batch containing commands that are being prepared for insertion into
75 * batch_queue. NULL if there are no such commands.
77 * Since this is only used by the main thread, it doesn't need the mutex to
80 struct glthread_batch
*batch
;
83 * Tracks on the main thread side whether the current vertex array binding
86 bool vertex_array_is_vbo
;
89 * Tracks on the main thread side whether the current element array (index
90 * buffer) binding is in a VBO.
92 bool element_array_is_vbo
;
96 * A single batch of commands queued up for later execution by a thread pool
102 * Next batch of commands to execute after this batch, or NULL if this is
103 * the last set of commands queued. Protected by ctx->Marshal.Mutex.
105 struct glthread_batch
*next
;
108 * Amount of data used by batch commands, in bytes.
113 * Data contained in the command buffer.
115 uint8_t buffer
[MARSHAL_MAX_CMD_SIZE
];
118 void _mesa_glthread_init(struct gl_context
*ctx
);
119 void _mesa_glthread_destroy(struct gl_context
*ctx
);
121 void _mesa_glthread_restore_dispatch(struct gl_context
*ctx
);
122 void _mesa_glthread_flush_batch(struct gl_context
*ctx
);
123 void _mesa_glthread_finish(struct gl_context
*ctx
);
125 #endif /* _GLTHREAD_H*/