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,
  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
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef LP_TEXTURE_H
  29 #define LP_TEXTURE_H
  30
  31
  32 #include "pipe/p_state.h"
  33 #include "util/u_debug.h"
  34
  35
  36 #define LP_MAX_TEXTURE_2D_LEVELS 12  /* 2K x 2K for now */
  37 #define LP_MAX_TEXTURE_3D_LEVELS 10  /* 512 x 512 x 512 for now */
  38
  39
  40 struct pipe_context;
  41 struct pipe_screen;
  42 struct llvmpipe_context;
  43
  44 struct sw_displaytarget;
  45
  46
  47 struct llvmpipe_resource
  48 {
  49    struct pipe_resource base;
  50
  51    unsigned long level_offset[LP_MAX_TEXTURE_2D_LEVELS];
  52    unsigned stride[LP_MAX_TEXTURE_2D_LEVELS];
  53
  54    /**
  55     * Display target, for textures with the PIPE_BIND_DISPLAY_TARGET
  56     * usage.
  57     */
  58    struct sw_displaytarget *dt;
  59
  60    /**
  61     * Malloc'ed data for regular textures, or a mapping to dt above.
  62     */
  63    void *data;
  64
  65    boolean userBuffer;  /** Is this a user-space buffer? */
  66    unsigned timestamp;
  67 };
  68
  69
  70 struct llvmpipe_transfer
  71 {
  72    struct pipe_transfer base;
  73
  74    unsigned long offset;
  75 };
  76
  77
  78 /** cast wrappers */
  79 static INLINE struct llvmpipe_resource *
  80 llvmpipe_resource(struct pipe_resource *pt)
  81 {
  82    return (struct llvmpipe_resource *) pt;
  83 }
  84
  85
  86 static INLINE const struct llvmpipe_resource *
  87 llvmpipe_resource_const(const struct pipe_resource *pt)
  88 {
  89    return (const struct llvmpipe_resource *) pt;
  90 }
  91
  92
  93 static INLINE struct llvmpipe_transfer *
  94 llvmpipe_transfer(struct pipe_transfer *pt)
  95 {
  96    return (struct llvmpipe_transfer *) pt;
  97 }
  98
  99
 100 void llvmpipe_init_screen_resource_funcs(struct pipe_screen *screen);
 101 void llvmpipe_init_context_resource_funcs(struct pipe_context *pipe);
 102
 103 static INLINE unsigned
 104 llvmpipe_resource_stride(struct pipe_resource *texture,
 105                         unsigned level)
 106 {
 107    struct llvmpipe_resource *lpt = llvmpipe_resource(texture);
 108    assert(level < LP_MAX_TEXTURE_2D_LEVELS);
 109    return lpt->stride[level];
 110 }
 111
 112
 113 void *
 114 llvmpipe_resource_map(struct pipe_resource *texture,
 115                       unsigned usage,
 116                       unsigned face,
 117                       unsigned level,
 118                       unsigned zslice);
 119
 120 void
 121 llvmpipe_resource_unmap(struct pipe_resource *texture,
 122                        unsigned face,
 123                        unsigned level,
 124                        unsigned zslice);
 125
 126
 127 #endif /* LP_TEXTURE_H */