src/gallium/drivers/nouveau/nouveau_screen.h

   1 #ifndef __NOUVEAU_SCREEN_H__
   2 #define __NOUVEAU_SCREEN_H__
   3
   4 struct nouveau_screen {
   5         struct pipe_screen base;
   6         struct nouveau_device *device;
   7         struct nouveau_channel *channel;
   8
   9         /**
  10          * Create a new texture object, using the given template info, but on top of
  11          * existing memory.
  12          *
  13          * It is assumed that the buffer data is layed out according to the expected
  14          * by the hardware. NULL will be returned if any inconsistency is found.
  15          */
  16         struct pipe_texture * (*texture_blanket)(struct pipe_screen *,
  17                                                  const struct pipe_texture *templat,
  18                                                  const unsigned *stride,
  19                                                  struct pipe_buffer *buffer);
  20
  21         int (*pre_pipebuffer_map_callback) (struct pipe_screen *pscreen,
  22                 struct pipe_buffer *pb, unsigned usage);
  23 };
  24
  25 static inline struct nouveau_screen *
  26 nouveau_screen(struct pipe_screen *pscreen)
  27 {
  28         return (struct nouveau_screen *)pscreen;
  29 }
  30
  31 static inline struct nouveau_bo *
  32 nouveau_bo(struct pipe_buffer *pb)
  33 {
  34         return pb ? *(struct nouveau_bo **)(pb + 1) : NULL;
  35 }
  36
  37 int nouveau_screen_init(struct nouveau_screen *, struct nouveau_device *);
  38 void nouveau_screen_fini(struct nouveau_screen *);
  39
  40 struct nouveau_miptree {
  41         struct pipe_texture base;
  42         struct nouveau_bo *bo;
  43 };
  44
  45 static inline struct nouveau_miptree *
  46 nouveau_miptree(struct pipe_texture *pt)
  47 {
  48         return (struct nouveau_miptree *)pt;
  49 }
  50
  51 #endif