src/gallium/drivers/cell/ppu/cell_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 CELL_TEXTURE_H
  29 #define CELL_TEXTURE_H
  30
  31 #include "cell/common.h"
  32
  33 struct cell_context;
  34 struct pipe_resource;
  35
  36
  37 /**
  38  * Subclass of pipe_resource
  39  */
  40 struct cell_resource
  41 {
  42    struct pipe_resource base;
  43
  44    unsigned long level_offset[CELL_MAX_TEXTURE_LEVELS];
  45    unsigned long stride[CELL_MAX_TEXTURE_LEVELS];
  46
  47    /**
  48     * Display target, for textures with the PIPE_BIND_DISPLAY_TARGET
  49     * usage.
  50     */
  51    struct sw_displaytarget *dt;
  52    unsigned dt_stride;
  53
  54    /**
  55     * Malloc'ed data for regular textures, or a mapping to dt above.
  56     */
  57    void *data;
  58    boolean userBuffer;
  59
  60    /* Size of the linear buffer??
  61     */
  62    unsigned long buffer_size;
  63
  64    /** The buffer above, mapped.  This is the memory from which the
  65     * SPUs will fetch texels.  This texture data is in the tiled layout.
  66     */
  67    ubyte *mapped;
  68 };
  69
  70
  71 struct cell_transfer
  72 {
  73    struct pipe_transfer base;
  74
  75    unsigned long offset;
  76    void *map;
  77 };
  78
  79
  80 /** cast wrapper */
  81 static INLINE struct cell_resource *
  82 cell_resource(struct pipe_resource *pt)
  83 {
  84    return (struct cell_resource *) pt;
  85 }
  86
  87
  88 /** cast wrapper */
  89 static INLINE struct cell_transfer *
  90 cell_transfer(struct pipe_transfer *pt)
  91 {
  92    return (struct cell_transfer *) pt;
  93 }
  94
  95
  96 extern void
  97 cell_init_screen_texture_funcs(struct pipe_screen *screen);
  98
  99 extern void
 100 cell_init_texture_transfer_funcs(struct cell_context *cell);
 101
 102 #endif /* CELL_TEXTURE_H */