src/mesa/pipe/softpipe/sp_buffer.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
   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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  *
  27  **************************************************************************/
  28 /*
  29  * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
  30  */
  31
  32 #include <stdlib.h>
  33 #include "sp_context.h"
  34 #include "sp_winsys.h"
  35 #include "sp_buffer.h"
  36
  37
  38
  39 /* Most callbacks map direcly onto winsys operations:
  40  */
  41 static struct pipe_buffer_handle *
  42 sp_create_buffer(struct pipe_context *pipe,
  43                  unsigned alignment,
  44                  unsigned flags)
  45 {
  46    struct softpipe_context *sp = softpipe_context( pipe );
  47    return sp->winsys->create_buffer( sp->winsys, alignment );
  48 }
  49
  50 static void *sp_buffer_map(struct pipe_context *pipe,
  51                            struct pipe_buffer_handle *buf,
  52                            unsigned flags )
  53 {
  54    struct softpipe_context *sp = softpipe_context( pipe );
  55    return sp->winsys->buffer_map( sp->winsys, buf );
  56 }
  57
  58 static void sp_buffer_unmap(struct pipe_context *pipe,
  59                             struct pipe_buffer_handle *buf)
  60 {
  61    struct softpipe_context *sp = softpipe_context( pipe );
  62    sp->winsys->buffer_unmap( sp->winsys, buf );
  63 }
  64
  65 static struct pipe_buffer_handle *
  66 sp_buffer_reference(struct pipe_context *pipe,
  67                     struct pipe_buffer_handle *buf)
  68 {
  69    struct softpipe_context *sp = softpipe_context( pipe );
  70    return sp->winsys->buffer_reference( sp->winsys, buf );
  71 }
  72
  73 static void sp_buffer_unreference(struct pipe_context *pipe,
  74                                   struct pipe_buffer_handle **buf)
  75 {
  76    struct softpipe_context *sp = softpipe_context( pipe );
  77    sp->winsys->buffer_unreference( sp->winsys, buf );
  78 }
  79
  80 static void sp_buffer_data(struct pipe_context *pipe,
  81                            struct pipe_buffer_handle *buf,
  82                            unsigned size, const void *data )
  83 {
  84    struct softpipe_context *sp = softpipe_context( pipe );
  85    sp->winsys->buffer_data( sp->winsys, buf, size, data );
  86 }
  87
  88 static void sp_buffer_subdata(struct pipe_context *pipe,
  89                                  struct pipe_buffer_handle *buf,
  90                                  unsigned long offset,
  91                                  unsigned long size,
  92                                  const void *data)
  93 {
  94    struct softpipe_context *sp = softpipe_context( pipe );
  95    sp->winsys->buffer_subdata( sp->winsys, buf, offset, size, data );
  96 }
  97
  98 static void sp_buffer_get_subdata(struct pipe_context *pipe,
  99                                   struct pipe_buffer_handle *buf,
 100                                   unsigned long offset,
 101                                   unsigned long size,
 102                                   void *data)
 103 {
 104    struct softpipe_context *sp = softpipe_context( pipe );
 105    sp->winsys->buffer_get_subdata( sp->winsys, buf, offset, size, data );
 106 }
 107
 108
 109 void
 110 sp_init_buffer_functions( struct softpipe_context *sp )
 111 {
 112    sp->pipe.create_buffer = sp_create_buffer;
 113    sp->pipe.buffer_map = sp_buffer_map;
 114    sp->pipe.buffer_unmap = sp_buffer_unmap;
 115    sp->pipe.buffer_reference = sp_buffer_reference;
 116    sp->pipe.buffer_unreference = sp_buffer_unreference;
 117    sp->pipe.buffer_data = sp_buffer_data;
 118    sp->pipe.buffer_subdata = sp_buffer_subdata;
 119    sp->pipe.buffer_get_subdata = sp_buffer_get_subdata;
 120 }