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_DRISW,
  17         DRM_CREATE_DRIVER = 1024,
  18         DRM_CREATE_MAX
  19 };
  20
  21 #define DRM_API_HANDLE_TYPE_SHARED 0
  22 #define DRM_API_HANDLE_TYPE_KMS    1
  23
  24 /**
  25  * For use with pipe_screen::{texture_from_handle|texture_get_handle}.
  26  */
  27 struct winsys_handle
  28 {
  29         /**
  30          * Unused for texture_from_handle, always
  31          * DRM_API_HANDLE_TYPE_SHARED.  Input to texture_get_handle,
  32          * use TEXTURE_USAGE to select handle for kms or ipc.
  33          */
  34         unsigned type;
  35         /**
  36          * Input to texture_from_handle.
  37          * Output for texture_get_handle.
  38          */
  39         unsigned handle;
  40         /**
  41          * Input to texture_from_handle.
  42          * Output for texture_get_handle.
  43          */
  44         unsigned stride;
  45 };
  46
  47 /**
  48  * Modes other than DRM_CREATE_NORMAL derive from this struct.
  49  */
  50 /*@{*/
  51 struct drm_create_screen_arg {
  52         enum drm_create_screen_mode mode;
  53 };
  54 /*@}*/
  55
  56 struct drm_api
  57 {
  58         void (*destroy)(struct drm_api *api);
  59
  60         const char *name;
  61
  62         /**
  63          * Kernel driver name, as accepted by drmOpenByName.
  64          */
  65         const char *driver_name;
  66
  67         /**
  68          * Create a pipe srcreen.
  69          */
  70         struct pipe_screen*  (*create_screen)(struct drm_api *api, int drm_fd,
  71                                               struct drm_create_screen_arg *arg);
  72 };
  73
  74 extern struct drm_api * drm_api_create(void);
  75
  76 #endif