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 #include "pipe/p_video_state.h"
  34
  35
  36 #define SP_MAX_TEXTURE_2D_LEVELS 13  /* 4K x 4K */
  37 #define SP_MAX_TEXTURE_3D_LEVELS 9   /* 512 x 512 x 512 */
  38
  39
  40 struct pipe_context;
  41 struct pipe_screen;
  42 struct softpipe_context;
  43
  44
  45 struct softpipe_texture
  46 {
  47    struct pipe_texture base;
  48
  49    unsigned long level_offset[SP_MAX_TEXTURE_2D_LEVELS];
  50    unsigned stride[SP_MAX_TEXTURE_2D_LEVELS];
  51
  52    /**
  53     * Display target, for textures with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET
  54     * usage.
  55     */
  56    struct sw_displaytarget *dt;
  57
  58    /**
  59     * Malloc'ed data for regular 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
  67    unsigned timestamp;
  68 };
  69
  70 struct softpipe_transfer
  71 {
  72    struct pipe_transfer base;
  73
  74    unsigned long offset;
  75 };
  76
  77 struct softpipe_video_surface
  78 {
  79    struct pipe_video_surface base;
  80
  81    /* The data is held here:
  82     */
  83    struct pipe_texture *tex;
  84 };
  85
  86
  87 /** cast wrappers */
  88 static INLINE struct softpipe_texture *
  89 softpipe_texture(struct pipe_texture *pt)
  90 {
  91    return (struct softpipe_texture *) pt;
  92 }
  93
  94 static INLINE struct softpipe_transfer *
  95 softpipe_transfer(struct pipe_transfer *pt)
  96 {
  97    return (struct softpipe_transfer *) pt;
  98 }
  99
 100 static INLINE struct softpipe_video_surface *
 101 softpipe_video_surface(struct pipe_video_surface *pvs)
 102 {
 103    return (struct softpipe_video_surface *) pvs;
 104 }
 105
 106
 107 extern void
 108 softpipe_init_screen_texture_funcs(struct pipe_screen *screen);
 109
 110
 111 #endif /* SP_TEXTURE */