src/gallium/include/state_tracker/drm_api.h

   1
   2 #ifndef _DRM_API_H_
   3 #define _DRM_API_H_
   4
   5 #include "pipe/p_compiler.h"
   6
   7 struct pipe_screen;
   8 struct pipe_winsys;
   9 struct pipe_buffer;
  10 struct pipe_context;
  11 struct pipe_texture;
  12
  13 enum drm_create_screen_mode {
  14         DRM_CREATE_NORMAL = 0,
  15         DRM_CREATE_DRI1,
  16         DRM_CREATE_DRIVER = 1024,
  17         DRM_CREATE_MAX
  18 };
  19
  20 /**
  21  * Modes other than DRM_CREATE_NORMAL derive from this struct.
  22  */
  23 /*@{*/
  24 struct drm_create_screen_arg {
  25         enum drm_create_screen_mode mode;
  26 };
  27 /*@}*/
  28
  29 struct drm_api
  30 {
  31         /**
  32          * Special buffer functions
  33          */
  34         /*@{*/
  35         struct pipe_screen*  (*create_screen)(int drm_fd,
  36                                               struct drm_create_screen_arg *arg);
  37         struct pipe_context* (*create_context)(struct pipe_screen *screen);
  38         /*@}*/
  39
  40         /**
  41          * Special buffer functions
  42          */
  43         /*@{*/
  44         boolean (*buffer_from_texture)(struct pipe_texture *texture,
  45                                        struct pipe_buffer **buffer,
  46                                        unsigned *stride);
  47         struct pipe_buffer* (*buffer_from_handle)(struct pipe_screen *screen,
  48                                                   const char *name,
  49                                                   unsigned handle);
  50         boolean (*handle_from_buffer)(struct pipe_screen *screen,
  51                                       struct pipe_buffer *buffer,
  52                                       unsigned *handle);
  53         boolean (*global_handle_from_buffer)(struct pipe_screen *screen,
  54                                              struct pipe_buffer *buffer,
  55                                              unsigned *handle);
  56         /*@}*/
  57 };
  58
  59 /**
  60  * A driver needs to export this symbol
  61  */
  62 extern struct drm_api drm_api_hooks;
  63
  64 #endif