src/gallium/drivers/softpipe/sp_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 SP_TEXTURE_H
  29 #define SP_TEXTURE_H
  30
  31
  32 #include "pipe/p_state.h"
  33
  34
  35 struct pipe_context;
  36 struct pipe_screen;
  37 struct softpipe_context;
  38
  39
  40 struct softpipe_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    /* The data is held here:
  48     */
  49    struct pipe_buffer *buffer;
  50
  51    /* True if texture images are power-of-two in all dimensions:
  52     */
  53    boolean pot;
  54
  55    unsigned timestamp;
  56 };
  57
  58 struct softpipe_transfer
  59 {
  60    struct pipe_transfer base;
  61
  62    unsigned long offset;
  63 };
  64
  65
  66 /** cast wrappers */
  67 static INLINE struct softpipe_texture *
  68 softpipe_texture(struct pipe_texture *pt)
  69 {
  70    return (struct softpipe_texture *) pt;
  71 }
  72
  73 static INLINE struct softpipe_transfer *
  74 softpipe_transfer(struct pipe_transfer *pt)
  75 {
  76    return (struct softpipe_transfer *) pt;
  77 }
  78
  79
  80 extern void
  81 softpipe_init_screen_texture_funcs(struct pipe_screen *screen);
  82
  83
  84 #endif /* SP_TEXTURE */