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