src/gallium/winsys/svga/drm/vmw_surface.h

   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
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   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
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  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
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  22  * SOFTWARE.
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  24  **********************************************************/
  25
  26 /**
  27  * @file
  28  * Surfaces for VMware SVGA winsys.
  29  *
  30  * @author Jose Fonseca <jfonseca@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_ */