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         const char *name;
  32
  33         /**
  34          * Kernel driver name, as accepted by drmOpenByName.
  35          */
  36         const char *driver_name;
  37
  38         /**
  39          * Special buffer functions
  40          */
  41         /*@{*/
  42         struct pipe_screen*  (*create_screen)(struct drm_api *api, int drm_fd,
  43                                               struct drm_create_screen_arg *arg);
  44         /*@}*/
  45
  46         /**
  47          * Special buffer functions
  48          */
  49         /*@{*/
  50         struct pipe_texture*
  51             (*texture_from_shared_handle)(struct drm_api *api,
  52                                           struct pipe_screen *screen,
  53                                           struct pipe_texture *templ,
  54                                           const char *name,
  55                                           unsigned stride,
  56                                           unsigned handle);
  57         boolean (*shared_handle_from_texture)(struct drm_api *api,
  58                                               struct pipe_screen *screen,
  59                                               struct pipe_texture *texture,
  60                                               unsigned *stride,
  61                                               unsigned *handle);
  62         boolean (*local_handle_from_texture)(struct drm_api *api,
  63                                              struct pipe_screen *screen,
  64                                              struct pipe_texture *texture,
  65                                              unsigned *stride,
  66                                              unsigned *handle);
  67         /*@}*/
  68
  69         void (*destroy)(struct drm_api *api);
  70 };
  71
  72 extern struct drm_api * drm_api_create(void);
  73
  74 #endif