src/gallium/drivers/cell/ppu/cell_texture.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  26  **************************************************************************/
  27
  28 #ifndef CELL_TEXTURE_H
  29 #define CELL_TEXTURE_H
  30
  31
  32 struct cell_context;
  33 struct pipe_texture;
  34
  35
  36 /**
  37  * Subclass of pipe_texture
  38  */
  39 struct cell_texture
  40 {
  41    struct pipe_texture base;
  42
  43    unsigned long level_offset[CELL_MAX_TEXTURE_LEVELS];
  44    unsigned long stride[CELL_MAX_TEXTURE_LEVELS];
  45
  46    /** The tiled texture data is held in this buffer */
  47    struct pipe_buffer *buffer;
  48    unsigned long buffer_size;
  49
  50    /** The buffer above, mapped.  This is the memory from which the
  51     * SPUs will fetch texels.  This texture data is in the tiled layout.
  52     */
  53    ubyte *mapped;
  54 };
  55
  56
  57 struct cell_transfer
  58 {
  59    struct pipe_transfer base;
  60
  61    unsigned long offset;
  62    void *map;
  63 };
  64
  65
  66 /** cast wrapper */
  67 static INLINE struct cell_texture *
  68 cell_texture(struct pipe_texture *pt)
  69 {
  70    return (struct cell_texture *) pt;
  71 }
  72
  73
  74 /** cast wrapper */
  75 static INLINE struct cell_transfer *
  76 cell_transfer(struct pipe_transfer *pt)
  77 {
  78    return (struct cell_transfer *) pt;
  79 }
  80
  81
  82 extern void
  83 cell_init_screen_texture_funcs(struct pipe_screen *screen);
  84
  85
  86 #endif /* CELL_TEXTURE_H */