src/gallium/drivers/cell/ppu/cell_texture.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,
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
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  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
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  26  **************************************************************************/
  27
  28 #ifndef CELL_TEXTURE_H
  29 #define CELL_TEXTURE_H
  30
  31 #include "cell/common.h"
  32
  33 struct cell_context;
  34 struct pipe_texture;
  35
  36
  37 /**
  38  * Subclass of pipe_texture
  39  */
  40 struct cell_texture
  41 {
  42    struct pipe_texture base;
  43
  44    unsigned long level_offset[CELL_MAX_TEXTURE_LEVELS];
  45    unsigned long stride[CELL_MAX_TEXTURE_LEVELS];
  46
  47    /**
  48     * Display target, for textures with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET
  49     * usage.
  50     */
  51    struct sw_displaytarget *dt;
  52    unsigned dt_stride;
  53
  54    /**
  55     * Malloc'ed data for regular textures, or a mapping to dt above.
  56     */
  57    void *data;
  58
  59    /* Size of the linear buffer??
  60     */
  61    unsigned long buffer_size;
  62
  63    /** The buffer above, mapped.  This is the memory from which the
  64     * SPUs will fetch texels.  This texture data is in the tiled layout.
  65     */
  66    ubyte *mapped;
  67 };
  68
  69
  70 struct cell_transfer
  71 {
  72    struct pipe_transfer base;
  73
  74    unsigned long offset;
  75    void *map;
  76 };
  77
  78
  79 /** cast wrapper */
  80 static INLINE struct cell_texture *
  81 cell_texture(struct pipe_texture *pt)
  82 {
  83    return (struct cell_texture *) pt;
  84 }
  85
  86
  87 /** cast wrapper */
  88 static INLINE struct cell_transfer *
  89 cell_transfer(struct pipe_transfer *pt)
  90 {
  91    return (struct cell_transfer *) pt;
  92 }
  93
  94
  95 extern void
  96 cell_init_screen_texture_funcs(struct pipe_screen *screen);
  97
  98 extern void
  99 cell_init_texture_transfer_funcs(struct cell_context *cell);
 100
 101 #endif /* CELL_TEXTURE_H */