src/gallium/drivers/i965/brw_screen.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 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 BRW_SCREEN_H
  29 #define BRW_SCREEN_H
  30
  31 #include "pipe/p_state.h"
  32 #include "pipe/p_screen.h"
  33
  34 #include "brw_reg.h"
  35
  36 struct brw_winsys_screen;
  37
  38
  39 /**
  40  * Subclass of pipe_screen
  41  */
  42 struct brw_screen
  43 {
  44    struct pipe_screen base;
  45    struct brw_chipset chipset;
  46    struct brw_winsys_screen *sws;
  47 };
  48
  49 /**
  50  * Subclass of pipe_transfer
  51  */
  52 struct brw_transfer
  53 {
  54    struct pipe_transfer base;
  55
  56    unsigned offset;
  57 };
  58
  59 struct brw_buffer
  60 {
  61    struct pipe_buffer base;
  62    struct brw_winsys_buffer *bo;
  63    void *ptr;
  64    boolean is_user_buffer;
  65 };
  66
  67
  68 /*
  69  * Cast wrappers
  70  */
  71 static INLINE struct brw_screen *
  72 brw_screen(struct pipe_screen *pscreen)
  73 {
  74    return (struct brw_screen *) pscreen;
  75 }
  76
  77 static INLINE struct brw_transfer *
  78 brw_transfer(struct pipe_transfer *transfer)
  79 {
  80    return (struct brw_transfer *)transfer;
  81 }
  82
  83 static INLINE struct brw_buffer *
  84 brw_buffer(struct pipe_buffer *buffer)
  85 {
  86    return (struct brw_buffer *)buffer;
  87 }
  88
  89
  90 /* Pipe buffer helpers
  91  */
  92 static INLINE boolean
  93 brw_buffer_is_user_buffer( const struct pipe_buffer *buf )
  94 {
  95    return ((const struct brw_buffer *)buf)->is_user_buffer;
  96 }
  97
  98 #endif /* BRW_SCREEN_H */