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      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 */
    104