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  1. /*
  2.  * Mesa 3-D graphics library
  3.  *
  4.  * Copyright (C) 2010 LunarG Inc.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the "Software"),
  8.  * to deal in the Software without restriction, including without limitation
  9.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10.  * and/or sell copies of the Software, and to permit persons to whom the
  11.  * Software is furnished to do so, subject to the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice shall be included
  14.  * in all copies or substantial portions of the Software.
  15.  *
  16.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21.  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22.  * DEALINGS IN THE SOFTWARE.
  23.  *
  24.  * Authors:
  25.  *    Chia-I Wu <olv@lunarg.com>
  26.  */
  27.  
  28. #ifndef _NATIVE_BUFFER_H_
  29. #define _NATIVE_BUFFER_H_
  30.  
  31. #include "pipe/p_compiler.h"
  32. #include "pipe/p_state.h"
  33.  
  34. struct native_display;
  35. struct ANativeWindowBuffer;
  36.  
  37. enum native_buffer_type {
  38.    NATIVE_BUFFER_DRM,
  39.    NATIVE_BUFFER_ANDROID,
  40.  
  41.    NUM_NATIVE_BUFFERS
  42. };
  43.  
  44. struct native_buffer {
  45.    enum native_buffer_type type;
  46.  
  47.    union {
  48.       struct {
  49.          struct pipe_resource templ;
  50.          unsigned name;   /**< the name of the GEM object */
  51.          unsigned handle; /**< the handle of the GEM object */
  52.          unsigned stride;
  53.       } drm;
  54.  
  55.       struct ANativeWindowBuffer *android; /**< opaque native buffer */
  56.    } u;
  57. };
  58.  
  59. /**
  60.  * Buffer interface of the native display.  It allows native buffers to be
  61.  * imported and exported.
  62.  */
  63. struct native_display_buffer {
  64.    struct pipe_resource *(*import_buffer)(struct native_display *ndpy,
  65.                                           struct native_buffer *buf);
  66.  
  67.    /**
  68.     * The resource must be creatred with PIPE_BIND_SHARED.
  69.     */
  70.    boolean (*export_buffer)(struct native_display *ndpy,
  71.                             struct pipe_resource *res,
  72.                             struct native_buffer *nbuf);
  73. };
  74.  
  75. #endif /* _NATIVE_BUFFER_H_ */
  76.