src/gallium/drivers/llvmpipe/lp_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
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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 LP_TEXTURE_H
  29 #define LP_TEXTURE_H
  30
  31
  32 #include "pipe/p_state.h"
  33
  34
  35 struct pipe_context;
  36 struct pipe_screen;
  37 struct llvmpipe_context;
  38 struct llvmpipe_displaytarget;
  39
  40 struct llvmpipe_texture
  41 {
  42    struct pipe_texture base;
  43
  44    unsigned long level_offset[PIPE_MAX_TEXTURE_LEVELS];
  45    unsigned stride[PIPE_MAX_TEXTURE_LEVELS];
  46
  47    /**
  48     * Display target, for textures with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET
  49     * usage.
  50     */
  51    struct llvmpipe_displaytarget *dt;
  52
  53    /**
  54     * Malloc'ed data for regular textures, or a mapping to dt above.
  55     */
  56    void *data;
  57
  58    unsigned timestamp;
  59 };
  60
  61 struct llvmpipe_transfer
  62 {
  63    struct pipe_transfer base;
  64
  65    unsigned long offset;
  66 };
  67
  68
  69 /** cast wrappers */
  70 static INLINE struct llvmpipe_texture *
  71 llvmpipe_texture(struct pipe_texture *pt)
  72 {
  73    return (struct llvmpipe_texture *) pt;
  74 }
  75
  76 static INLINE struct llvmpipe_transfer *
  77 llvmpipe_transfer(struct pipe_transfer *pt)
  78 {
  79    return (struct llvmpipe_transfer *) pt;
  80 }
  81
  82
  83 extern void
  84 llvmpipe_init_texture_funcs( struct llvmpipe_context *llvmpipe );
  85
  86 extern void
  87 llvmpipe_init_screen_texture_funcs(struct pipe_screen *screen);
  88
  89
  90 #endif /* LP_TEXTURE */