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  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
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  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. #include "sp_limits.h"
  34.  
  35.  
  36. struct pipe_context;
  37. struct pipe_screen;
  38. struct softpipe_context;
  39.  
  40.  
  41. /**
  42.  * Subclass of pipe_resource.
  43.  */
  44. struct softpipe_resource
  45. {
  46.    struct pipe_resource base;
  47.  
  48.    unsigned long level_offset[SP_MAX_TEXTURE_2D_LEVELS];
  49.    unsigned stride[SP_MAX_TEXTURE_2D_LEVELS];
  50.  
  51.    /**
  52.     * Display target, only valid for PIPE_TEXTURE_2D with the
  53.     * PIPE_BIND_DISPLAY_TARGET usage.
  54.     */
  55.    struct sw_displaytarget *dt;
  56.  
  57.    /**
  58.     * Malloc'ed data for regular buffers and textures, or a mapping to dt above.
  59.     */
  60.    void *data;
  61.  
  62.    /* True if texture images are power-of-two in all dimensions:
  63.     */
  64.    boolean pot;
  65.    boolean userBuffer;
  66.  
  67.    unsigned timestamp;
  68. };
  69.  
  70.  
  71. /**
  72.  * Subclass of pipe_transfer.
  73.  */
  74. struct softpipe_transfer
  75. {
  76.    struct pipe_transfer base;
  77.  
  78.    unsigned long offset;
  79. };
  80.  
  81.  
  82. /** cast wrappers */
  83. static INLINE struct softpipe_resource *
  84. softpipe_resource(struct pipe_resource *pt)
  85. {
  86.    return (struct softpipe_resource *) pt;
  87. }
  88.  
  89. static INLINE struct softpipe_transfer *
  90. softpipe_transfer(struct pipe_transfer *pt)
  91. {
  92.    return (struct softpipe_transfer *) pt;
  93. }
  94.  
  95.  
  96. extern void
  97. softpipe_init_screen_texture_funcs(struct pipe_screen *screen);
  98.  
  99. extern void
  100. softpipe_init_texture_funcs(struct pipe_context *pipe);
  101.  
  102.  
  103. #endif /* SP_TEXTURE */
  104.