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      1 /**********************************************************
      2  * Copyright 2009 VMware, Inc.  All rights reserved.
      3  *
      4  * Permission is hereby granted, free of charge, to any person
      5  * obtaining a copy of this software and associated documentation
      6  * files (the "Software"), to deal in the Software without
      7  * restriction, including without limitation the rights to use, copy,
      8  * modify, merge, publish, distribute, sublicense, and/or sell copies
      9  * of the Software, and to permit persons to whom the Software is
     10  * furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice shall be
     13  * included in all copies or substantial portions of the Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     22  * SOFTWARE.
     23  *
     24  **********************************************************/
     25 
     26 /**
     27  * @file
     28  * Surfaces for VMware SVGA winsys.
     29  *
     30  * @author Jose Fonseca <jfonseca (at) vmware.com>
     31  */
     32 
     33 
     34 #ifndef VMW_SURFACE_H_
     35 #define VMW_SURFACE_H_
     36 
     37 
     38 #include "pipe/p_compiler.h"
     39 #include "util/u_atomic.h"
     40 #include "util/u_inlines.h"
     41 
     42 #define VMW_MAX_PRESENTS 3
     43 
     44 
     45 
     46 struct vmw_svga_winsys_surface
     47 {
     48    int32_t validated; /* atomic */
     49    struct pipe_reference refcnt;
     50 
     51    struct vmw_winsys_screen *screen;
     52    uint32_t sid;
     53 
     54    /* FIXME: make this thread safe */
     55    unsigned next_present_no;
     56    uint32_t present_fences[VMW_MAX_PRESENTS];
     57 };
     58 
     59 
     60 static INLINE struct svga_winsys_surface *
     61 svga_winsys_surface(struct vmw_svga_winsys_surface *surf)
     62 {
     63    assert(!surf || surf->sid != SVGA3D_INVALID_ID);
     64    return (struct svga_winsys_surface *)surf;
     65 }
     66 
     67 
     68 static INLINE struct vmw_svga_winsys_surface *
     69 vmw_svga_winsys_surface(struct svga_winsys_surface *surf)
     70 {
     71    return (struct vmw_svga_winsys_surface *)surf;
     72 }
     73 
     74 
     75 void
     76 vmw_svga_winsys_surface_reference(struct vmw_svga_winsys_surface **pdst,
     77                                   struct vmw_svga_winsys_surface *src);
     78 
     79 #endif /* VMW_SURFACE_H_ */
     80