src/mesa/pipe/softpipe/sp_tile_cache.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  16  * of the Software.
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  27
  28 #ifndef SP_TILE_CACHE_H
  29 #define SP_TILE_CACHE_H
  30
  31
  32 #include "pipe/p_compiler.h"
  33
  34
  35 struct softpipe_context;
  36 struct softpipe_tile_cache;
  37
  38
  39 /**
  40  * Cache tile size (width and height). This needs to be a power of two.
  41  */
  42 #define TILE_SIZE 64
  43
  44
  45
  46 struct softpipe_cached_tile
  47 {
  48    int x, y;           /**< pos of tile in window coords */
  49    int z, face, level; /**< Extra texture indexes */
  50    union {
  51       float color[TILE_SIZE][TILE_SIZE][4];
  52       uint depth32[TILE_SIZE][TILE_SIZE];
  53       ushort depth16[TILE_SIZE][TILE_SIZE];
  54       ubyte stencil8[TILE_SIZE][TILE_SIZE];
  55    } data;
  56 };
  57
  58
  59 extern struct softpipe_tile_cache *
  60 sp_create_tile_cache(void);
  61
  62 extern void
  63 sp_destroy_tile_cache(struct softpipe_tile_cache *tc);
  64
  65 extern void
  66 sp_tile_cache_set_surface(struct softpipe_context *sp,
  67                           struct softpipe_tile_cache *tc,
  68                           struct pipe_surface *sps);
  69
  70 extern struct pipe_surface *
  71 sp_tile_cache_get_surface(struct softpipe_context *sp,
  72                           struct softpipe_tile_cache *tc);
  73
  74 extern void
  75 sp_tile_cache_set_texture(struct softpipe_tile_cache *tc,
  76                           struct pipe_texture *texture);
  77
  78 extern void
  79 sp_flush_tile_cache(struct softpipe_context *softpipe,
  80                     struct softpipe_tile_cache *tc);
  81
  82 extern void
  83 sp_tile_cache_clear(struct softpipe_tile_cache *tc, const float value[4]);
  84
  85 extern struct softpipe_cached_tile *
  86 sp_get_cached_tile(struct softpipe_context *softpipe,
  87                    struct softpipe_tile_cache *tc, int x, int y);
  88
  89 extern const struct softpipe_cached_tile *
  90 sp_get_cached_tile_tex(struct pipe_context *pipe,
  91                        struct softpipe_tile_cache *tc, int x, int y, int z,
  92                        int face, int level);
  93
  94
  95 #endif /* SP_TILE_CACHE_H */
  96