src/mesa/state_tracker/st_cb_viewport.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   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,
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  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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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "main/glheader.h"
  29 #include "st_context.h"
  30 #include "st_public.h"
  31 #include "st_cb_viewport.h"
  32
  33 #include "pipe/p_context.h"
  34 #include "pipe/p_inlines.h"
  35 #include "pipe/p_state.h"
  36 #include "pipe/p_defines.h"
  37 #include "pipe/internal/p_winsys_screen.h"
  38
  39
  40 static void st_viewport(GLcontext * ctx, GLint x, GLint y,
  41                         GLsizei width, GLsizei height)
  42 {
  43    struct st_context *st = ctx->st;
  44
  45    if (st->pipe->winsys && st->pipe->winsys->update_buffer)
  46       st->pipe->winsys->update_buffer( st->pipe->winsys,
  47                                        st->pipe->priv );
  48 }
  49
  50 void st_init_viewport_functions(struct dd_function_table *functions)
  51 {
  52    functions->Viewport = st_viewport;
  53 }