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
  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
  34
  35 #define SP_MAX_TEXTURE_2D_LEVELS 13  /* 4K x 4K */
  36 #define SP_MAX_TEXTURE_3D_LEVELS 9   /* 512 x 512 x 512 */
  37
  38
  39 struct pipe_context;
  40 struct pipe_screen;
  41 struct softpipe_context;
  42
  43
  44 /**
  45  * Subclass of pipe_resource.
  46  */
  47 struct softpipe_resource
  48 {
  49    struct pipe_resource base;
  50
  51    unsigned long level_offset[SP_MAX_TEXTURE_2D_LEVELS];
  52    unsigned stride[SP_MAX_TEXTURE_2D_LEVELS];
  53
  54    /**
  55     * Display target, only valid for PIPE_TEXTURE_2D with the
  56     * PIPE_BIND_DISPLAY_TARGET usage.
  57     */
  58    struct sw_displaytarget *dt;
  59
  60    /**
  61     * Malloc'ed data for regular buffers and textures, or a mapping to dt above.
  62     */
  63    void *data;
  64
  65    /* True if texture images are power-of-two in all dimensions:
  66     */
  67    boolean pot;
  68    boolean userBuffer;
  69
  70    unsigned timestamp;
  71 };
  72
  73
  74 /**
  75  * Subclass of pipe_transfer.
  76  */
  77 struct softpipe_transfer
  78 {
  79    struct pipe_transfer base;
  80
  81    unsigned long offset;
  82 };
  83
  84
  85
  86 /** cast wrappers */
  87 static INLINE struct softpipe_resource *
  88 softpipe_resource(struct pipe_resource *pt)
  89 {
  90    return (struct softpipe_resource *) pt;
  91 }
  92
  93 static INLINE struct softpipe_transfer *
  94 softpipe_transfer(struct pipe_transfer *pt)
  95 {
  96    return (struct softpipe_transfer *) pt;
  97 }
  98
  99
 100 extern void
 101 softpipe_init_screen_texture_funcs(struct pipe_screen *screen);
 102
 103 extern void
 104 softpipe_init_texture_funcs(struct pipe_context *pipe);
 105
 106
 107 #endif /* SP_TEXTURE */