src/mesa/state_tracker/st_cb_fbo.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
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  26  **************************************************************************/
  27
  28
  29 #ifndef ST_CB_FBO_H
  30 #define ST_CB_FBO_H
  31
  32
  33 #define DEFAULT_ACCUM_PIPE_FORMAT PIPE_FORMAT_R16G16B16A16_SNORM
  34
  35
  36
  37 /**
  38  * Derived renderbuffer class.  Just need to add a pointer to the
  39  * pipe surface.
  40  */
  41 struct st_renderbuffer
  42 {
  43    struct gl_renderbuffer Base;
  44    struct pipe_texture *texture;
  45    struct pipe_surface *surface; /* temporary view into texture */
  46    enum pipe_format format;  /** preferred format, or PIPE_FORMAT_NONE */
  47    GLboolean defined;        /**< defined contents? */
  48
  49    struct st_texture_object *rtt;  /**< GL render to texture's texture */
  50    int rtt_level, rtt_face, rtt_slice;
  51
  52    /** Render to texture state */
  53    struct pipe_texture *texture_save;
  54    struct pipe_surface *surface_save;
  55 };
  56
  57
  58 static INLINE struct st_renderbuffer *
  59 st_renderbuffer(struct gl_renderbuffer *rb)
  60 {
  61    return (struct st_renderbuffer *) rb;
  62 }
  63
  64
  65 extern struct gl_renderbuffer *
  66 st_new_renderbuffer_fb(enum pipe_format format, int samples);
  67
  68 extern void
  69 st_init_fbo_functions(struct dd_function_table *functions);
  70
  71
  72 #endif /* ST_CB_FBO_H */