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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2007 VMware, Inc.
  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 VMWARE 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.    unsigned img_stride[SP_MAX_TEXTURE_2D_LEVELS];
  51.  
  52.    /**
  53.     * Display target, only valid for PIPE_TEXTURE_2D with the
  54.     * PIPE_BIND_DISPLAY_TARGET usage.
  55.     */
  56.    struct sw_displaytarget *dt;
  57.  
  58.    /**
  59.     * Malloc'ed data for regular buffers and textures, or a mapping to dt above.
  60.     */
  61.    void *data;
  62.  
  63.    /* True if texture images are power-of-two in all dimensions:
  64.     */
  65.    boolean pot;
  66.    boolean userBuffer;
  67.  
  68.    unsigned timestamp;
  69. };
  70.  
  71.  
  72. /**
  73.  * Subclass of pipe_transfer.
  74.  */
  75. struct softpipe_transfer
  76. {
  77.    struct pipe_transfer base;
  78.  
  79.    unsigned long offset;
  80. };
  81.  
  82.  
  83. /** cast wrappers */
  84. static INLINE struct softpipe_resource *
  85. softpipe_resource(struct pipe_resource *pt)
  86. {
  87.    return (struct softpipe_resource *) pt;
  88. }
  89.  
  90. static INLINE struct softpipe_transfer *
  91. softpipe_transfer(struct pipe_transfer *pt)
  92. {
  93.    return (struct softpipe_transfer *) pt;
  94. }
  95.  
  96.  
  97. /**
  98.  * Return pointer to a resource's actual data.
  99.  * This is a short-cut instead of using map()/unmap(), which should
  100.  * probably be fixed.
  101.  */
  102. static INLINE void *
  103. softpipe_resource_data(struct pipe_resource *pt)
  104. {
  105.    if (!pt)
  106.       return NULL;
  107.  
  108.    assert(softpipe_resource(pt)->dt == NULL);
  109.    return softpipe_resource(pt)->data;
  110. }
  111.  
  112.  
  113. extern void
  114. softpipe_init_screen_texture_funcs(struct pipe_screen *screen);
  115.  
  116. extern void
  117. softpipe_init_texture_funcs(struct pipe_context *pipe);
  118.  
  119.  
  120. #endif /* SP_TEXTURE */
  121.