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      1 /**************************************************************************
      2  *
      3  * Copyright 2008 VMware, Inc.
      4  * All Rights Reserved.
      5  *
      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:
     13  *
     14  * The above copyright notice and this permission notice (including the
     15  * next paragraph) shall be included in all copies or substantial portions
     16  * of the Software.
     17  *
     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.
     25  *
     26  **************************************************************************/
     27 
     28 /**
     29  * @file
     30  * Buffer validation.
     31  *
     32  * @author Jose Fonseca <jfonseca (at) vmware.com>
     33  */
     34 
     35 #ifndef PB_VALIDATE_H_
     36 #define PB_VALIDATE_H_
     37 
     38 
     39 #include "pipe/p_compiler.h"
     40 #include "pipe/p_defines.h"
     41 
     42 #ifdef __cplusplus
     43 extern "C" {
     44 #endif
     45 
     46 
     47 struct pb_buffer;
     48 struct pipe_fence_handle;
     49 
     50 
     51 /**
     52  * Buffer validation list.
     53  *
     54  * It holds a list of buffers to be validated and fenced when flushing.
     55  */
     56 struct pb_validate;
     57 
     58 
     59 enum pipe_error
     60 pb_validate_add_buffer(struct pb_validate *vl,
     61                        struct pb_buffer *buf,
     62                        unsigned flags);
     63 
     64 enum pipe_error
     65 pb_validate_foreach(struct pb_validate *vl,
     66                     enum pipe_error (*callback)(struct pb_buffer *buf, void *data),
     67                     void *data);
     68 
     69 /**
     70  * Validate all buffers for hardware access.
     71  *
     72  * Should be called right before issuing commands to the hardware.
     73  */
     74 enum pipe_error
     75 pb_validate_validate(struct pb_validate *vl);
     76 
     77 /**
     78  * Fence all buffers and clear the list.
     79  *
     80  * Should be called right after issuing commands to the hardware.
     81  */
     82 void
     83 pb_validate_fence(struct pb_validate *vl,
     84                   struct pipe_fence_handle *fence);
     85 
     86 struct pb_validate *
     87 pb_validate_create(void);
     88 
     89 void
     90 pb_validate_destroy(struct pb_validate *vl);
     91 
     92 
     93 #ifdef __cplusplus
     94 }
     95 #endif
     96 
     97 #endif /*PB_VALIDATE_H_*/
     98