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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5563 | serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright 2009 VMware, Inc. |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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| 21 | * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
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| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | |||
| 29 | #ifndef LP_FENCE_H |
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| 30 | #define LP_FENCE_H |
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| 31 | |||
| 32 | |||
| 33 | #include "os/os_thread.h" |
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| 34 | #include "pipe/p_state.h" |
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| 35 | #include "util/u_inlines.h" |
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| 36 | |||
| 37 | |||
| 38 | struct pipe_screen; |
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| 39 | |||
| 40 | |||
| 41 | struct lp_fence |
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| 42 | { |
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| 43 | struct pipe_reference reference; |
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| 44 | unsigned id; |
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| 45 | |||
| 46 | pipe_mutex mutex; |
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| 47 | pipe_condvar signalled; |
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| 48 | |||
| 49 | boolean issued; |
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| 50 | unsigned rank; |
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| 51 | unsigned count; |
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| 52 | }; |
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| 53 | |||
| 54 | |||
| 55 | struct lp_fence * |
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| 56 | lp_fence_create(unsigned rank); |
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| 57 | |||
| 58 | |||
| 59 | void |
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| 60 | lp_fence_signal(struct lp_fence *fence); |
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| 61 | |||
| 62 | boolean |
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| 63 | lp_fence_signalled(struct lp_fence *fence); |
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| 64 | |||
| 65 | void |
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| 66 | lp_fence_wait(struct lp_fence *fence); |
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| 67 | |||
| 68 | void |
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| 69 | llvmpipe_init_screen_fence_funcs(struct pipe_screen *screen); |
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| 70 | |||
| 71 | |||
| 72 | void |
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| 73 | lp_fence_destroy(struct lp_fence *fence); |
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| 74 | |||
| 75 | static INLINE void |
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| 76 | lp_fence_reference(struct lp_fence **ptr, |
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| 77 | struct lp_fence *f) |
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| 78 | { |
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| 79 | struct lp_fence *old = *ptr; |
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| 80 | |||
| 81 | if (pipe_reference(&old->reference, &f->reference)) { |
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| 82 | lp_fence_destroy(old); |
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| 83 | } |
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| 84 | |||
| 85 | *ptr = f; |
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| 86 | } |
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| 87 | |||
| 88 | static INLINE boolean |
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| 89 | lp_fence_issued(const struct lp_fence *fence) |
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| 90 | { |
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| 91 | return fence->issued; |
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| 92 | } |
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| 93 | |||
| 94 | |||
| 95 | #endif /* LP_FENCE_H */ |