src/gallium/drivers/softpipe/sp_tile_cache.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef SP_TILE_CACHE_H
  29 #define SP_TILE_CACHE_H
  30
  31 #define TILE_CLEAR_OPTIMIZATION 1
  32
  33
  34 #include "pipe/p_compiler.h"
  35
  36
  37 struct softpipe_context;
  38 struct softpipe_tile_cache;
  39
  40
  41 /**
  42  * Cache tile size (width and height). This needs to be a power of two.
  43  */
  44 #define TILE_SIZE 64
  45
  46
  47
  48 struct softpipe_cached_tile
  49 {
  50    int x, y;           /**< pos of tile in window coords */
  51    int z, face, level; /**< Extra texture indexes */
  52    union {
  53       float color[TILE_SIZE][TILE_SIZE][4];
  54       uint color32[TILE_SIZE][TILE_SIZE];
  55       uint depth32[TILE_SIZE][TILE_SIZE];
  56       ushort depth16[TILE_SIZE][TILE_SIZE];
  57       ubyte stencil8[TILE_SIZE][TILE_SIZE];
  58       ubyte any[1];
  59    } data;
  60 };
  61
  62
  63 extern struct softpipe_tile_cache *
  64 sp_create_tile_cache( struct pipe_screen *screen );
  65
  66 extern void
  67 sp_destroy_tile_cache(struct softpipe_tile_cache *tc);
  68
  69 extern void
  70 sp_tile_cache_set_surface(struct softpipe_tile_cache *tc,
  71                           struct pipe_surface *sps);
  72
  73 extern struct pipe_surface *
  74 sp_tile_cache_get_surface(struct softpipe_tile_cache *tc);
  75
  76 extern void
  77 sp_tile_cache_map_transfers(struct softpipe_tile_cache *tc);
  78
  79 extern void
  80 sp_tile_cache_unmap_transfers(struct softpipe_tile_cache *tc);
  81
  82 extern void
  83 sp_tile_cache_set_texture(struct pipe_context *pipe,
  84                           struct softpipe_tile_cache *tc,
  85                           struct pipe_texture *texture);
  86
  87 extern void
  88 sp_flush_tile_cache(struct softpipe_context *softpipe,
  89                     struct softpipe_tile_cache *tc);
  90
  91 extern void
  92 sp_tile_cache_clear(struct softpipe_tile_cache *tc, const float *rgba,
  93                     uint clearValue);
  94
  95 extern struct softpipe_cached_tile *
  96 sp_get_cached_tile(struct softpipe_context *softpipe,
  97                    struct softpipe_tile_cache *tc, int x, int y);
  98
  99 extern const struct softpipe_cached_tile *
 100 sp_get_cached_tile_tex(struct softpipe_context *softpipe,
 101                        struct softpipe_tile_cache *tc, int x, int y, int z,
 102                        int face, int level);
 103
 104
 105 #endif /* SP_TILE_CACHE_H */
 106