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 #define DRM_API_HANDLE_TYPE_SHARED 0
  21 #define DRM_API_HANDLE_TYPE_KMS    1
  22
  23 /**
  24  * For use with pipe_screen::{texture_from_handle|texture_get_handle}.
  25  */
  26 struct winsys_handle
  27 {
  28         /**
  29          * Unused for texture_from_handle, always
  30          * DRM_API_HANDLE_TYPE_SHARED.  Input to texture_get_handle,
  31          * use TEXTURE_USAGE to select handle for kms or ipc.
  32          */
  33         unsigned type;
  34         /**
  35          * Input to texture_from_handle.
  36          * Output for texture_get_handle.
  37          */
  38         unsigned handle;
  39         /**
  40          * Input to texture_from_handle.
  41          * Output for texture_get_handle.
  42          */
  43         unsigned stride;
  44 };
  45
  46 /**
  47  * Modes other than DRM_CREATE_NORMAL derive from this struct.
  48  */
  49 /*@{*/
  50 struct drm_create_screen_arg {
  51         enum drm_create_screen_mode mode;
  52 };
  53 /*@}*/
  54
  55 struct drm_api
  56 {
  57         void (*destroy)(struct drm_api *api);
  58
  59         const char *name;
  60
  61         /**
  62          * Kernel driver name, as accepted by drmOpenByName.
  63          */
  64         const char *driver_name;
  65
  66         /**
  67          * Create a pipe srcreen.
  68          */
  69         struct pipe_screen*  (*create_screen)(struct drm_api *api, int drm_fd,
  70                                               struct drm_create_screen_arg *arg);
  71 };
  72
  73 extern struct drm_api * drm_api_create(void);
  74
  75 #endif