arch/all-hosted/libs/hostgl/hostgl_glamakecurrent.c

   1 /*
   2     Copyright 2011-2015, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/debug.h>
   7
   8 #include <proto/exec.h>
   9
  10 #include "hostgl_ctx_manager.h"
  11 #include "hostgl_support.h"
  12
  13
  14 /*****************************************************************************
  15
  16     NAME */
  17
  18       void glAMakeCurrent(
  19
  20 /*  SYNOPSIS */
  21       GLAContext ctx)
  22
  23 /*  FUNCTION
  24         Make the selected GL rendering context active.
  25
  26     INPUTS
  27         ctx - GL rendering context to be made active for all following GL
  28                 calls.
  29
  30     RESULT
  31
  32     BUGS
  33
  34     INTERNALS
  35
  36     HISTORY
  37
  38 *****************************************************************************/
  39 {
  40     HostGL_Lock();
  41
  42     D(bug("[HostGL] TASK: 0x%x, MAKE CURRENT 0x%x\n", FindTask(NULL), ((struct hostgl_context *)ctx)->glXctx));
  43
  44     if (ctx)
  45     {
  46         GLAContext cur_ctx = HostGL_GetCurrentContext();
  47
  48         if (ctx != cur_ctx)
  49         {
  50             /* Recalculate buffer dimensions */
  51             HostGLRecalculateBufferWidthHeight(ctx);
  52
  53             /* Attach */
  54             HostGL_SetCurrentContext(ctx);
  55             HostGL_UpdateGlobalGLXContext();
  56         }
  57     }
  58     else
  59     {
  60         /* Detach */
  61         HostGL_SetCurrentContext(NULL);
  62         HostGL_UpdateGlobalGLXContext();
  63     }
  64
  65     HostGL_UnLock();
  66 }
  67