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 struct pipe_context;
  37 struct pipe_screen;
  38 struct softpipe_context;
  39
  40
  41 struct softpipe_texture
  42 {
  43    struct pipe_texture base;
  44
  45    unsigned long level_offset[PIPE_MAX_TEXTURE_LEVELS];
  46    unsigned stride[PIPE_MAX_TEXTURE_LEVELS];
  47
  48    /**
  49     * Display target, for textures with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET
  50     * usage.
  51     */
  52    struct sw_displaytarget *dt;
  53
  54    /**
  55     * Malloc'ed data for regular textures, or a mapping to dt above.
  56     */
  57    void *data;
  58
  59    /* True if texture images are power-of-two in all dimensions:
  60     */
  61    boolean pot;
  62
  63    unsigned timestamp;
  64 };
  65
  66 struct softpipe_transfer
  67 {
  68    struct pipe_transfer base;
  69
  70    unsigned long offset;
  71 };
  72
  73 struct softpipe_video_surface
  74 {
  75    struct pipe_video_surface base;
  76
  77    /* The data is held here:
  78     */
  79    struct pipe_texture *tex;
  80 };
  81
  82
  83 /** cast wrappers */
  84 static INLINE struct softpipe_texture *
  85 softpipe_texture(struct pipe_texture *pt)
  86 {
  87    return (struct softpipe_texture *) 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 static INLINE struct softpipe_video_surface *
  97 softpipe_video_surface(struct pipe_video_surface *pvs)
  98 {
  99    return (struct softpipe_video_surface *) pvs;
 100 }
 101
 102
 103 extern void
 104 softpipe_init_screen_texture_funcs(struct pipe_screen *screen);
 105
 106
 107 #endif /* SP_TEXTURE */