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
   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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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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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
  41 struct llvmpipe_texture
  42 {
  43    struct pipe_texture base;
  44
  45    unsigned long level_offset[PIPE_MAX_TEXTURE_LEVELS];
  46    unsigned stride[PIPE_MAX_TEXTURE_LEVELS];
  47
  48    /**
  49     * Display target, for textures with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET
  50     * usage.
  51     */
  52    struct llvmpipe_displaytarget *dt;
  53
  54    /**
  55     * Malloc'ed data for regular textures, or a mapping to dt above.
  56     */
  57    void *data;
  58
  59    unsigned timestamp;
  60 };
  61
  62
  63 struct llvmpipe_transfer
  64 {
  65    struct pipe_transfer base;
  66
  67    unsigned long offset;
  68 };
  69
  70
  71 /** cast wrappers */
  72 static INLINE struct llvmpipe_texture *
  73 llvmpipe_texture(struct pipe_texture *pt)
  74 {
  75    return (struct llvmpipe_texture *) pt;
  76 }
  77
  78
  79 static INLINE const struct llvmpipe_texture *
  80 llvmpipe_texture_const(const struct pipe_texture *pt)
  81 {
  82    return (const struct llvmpipe_texture *) pt;
  83 }
  84
  85
  86 static INLINE struct llvmpipe_transfer *
  87 llvmpipe_transfer(struct pipe_transfer *pt)
  88 {
  89    return (struct llvmpipe_transfer *) pt;
  90 }
  91
  92
  93 extern void
  94 llvmpipe_init_screen_texture_funcs(struct pipe_screen *screen);
  95
  96
  97 #endif /* LP_TEXTURE_H */