Home | History | Annotate | Download | only in drm 
      1 /**********************************************************
      2  * Copyright 2009-2015 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 #include "os/os_thread.h"
     42 #include "pipebuffer/pb_buffer.h"
     43 
     44 #define VMW_MAX_PRESENTS 3
     45 
     46 
     47 
     48 struct vmw_svga_winsys_surface
     49 {
     50    int32_t validated; /* atomic */
     51    struct pipe_reference refcnt;
     52 
     53    struct vmw_winsys_screen *screen;
     54    uint32_t sid;
     55 
     56    /* FIXME: make this thread safe */
     57    unsigned next_present_no;
     58    uint32_t present_fences[VMW_MAX_PRESENTS];
     59 
     60    pipe_mutex mutex;
     61    struct svga_winsys_buffer *buf; /* Current backing guest buffer */
     62    uint32_t mapcount; /* Number of mappers */
     63    uint32_t map_mode; /* PIPE_TRANSFER_[READ|WRITE] */
     64    void *data; /* Pointer to data if mapcount != 0*/
     65    boolean shared; /* Shared surface. Never discard */
     66    uint32_t size; /* Size of backing buffer */
     67    boolean rebind; /* Surface needs a rebind after next unmap */
     68 };
     69 
     70 
     71 static inline struct svga_winsys_surface *
     72 svga_winsys_surface(struct vmw_svga_winsys_surface *surf)
     73 {
     74    assert(!surf || surf->sid != SVGA3D_INVALID_ID);
     75    return (struct svga_winsys_surface *)surf;
     76 }
     77 
     78 
     79 static inline struct vmw_svga_winsys_surface *
     80 vmw_svga_winsys_surface(struct svga_winsys_surface *surf)
     81 {
     82    return (struct vmw_svga_winsys_surface *)surf;
     83 }
     84 
     85 
     86 void
     87 vmw_svga_winsys_surface_reference(struct vmw_svga_winsys_surface **pdst,
     88                                   struct vmw_svga_winsys_surface *src);
     89 void *
     90 vmw_svga_winsys_surface_map(struct svga_winsys_context *swc,
     91 			    struct svga_winsys_surface *srf,
     92 			    unsigned flags, boolean *retry);
     93 void
     94 vmw_svga_winsys_surface_unmap(struct svga_winsys_context *swc,
     95                               struct svga_winsys_surface *srf,
     96                               boolean *rebind);
     97 
     98 #endif /* VMW_SURFACE_H_ */
     99