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

   1 /*
   2     Copyright 2011-2015, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <proto/exec.h>
   7 #include <proto/utility.h>
   8 #include <proto/graphics.h>
   9 #include <proto/arossupport.h>
  10
  11 #include "hostgl_ctx_manager.h"
  12 #include "hostgl_funcs.h"
  13 #include "hostgl_support.h"
  14
  15 /*****************************************************************************
  16
  17     NAME */
  18
  19       void glASetRast(
  20
  21 /*  SYNOPSIS */
  22       GLAContext ctx,
  23       struct TagItem * tagList)
  24
  25 /*  FUNCTION
  26
  27         Sets a new rendering target for an existing context
  28
  29     INPUTS
  30
  31         tagList - a pointer to tags to be used during creation.
  32
  33     TAGS
  34
  35         GLA_Window - pointer to Window onto which scene is to be rendered. Must
  36                      be provided.
  37
  38     RESULT
  39
  40         None
  41
  42     BUGS
  43
  44     INTERNALS
  45
  46     HISTORY
  47
  48 *****************************************************************************/
  49 {
  50     struct hostgl_context *_ctx = (struct hostgl_context *)ctx;
  51
  52     if (_ctx)
  53     {
  54         /* Check if at least one of window, rastport or screen have been passed */
  55         if ((GetTagData(GLA_Screen, 0, tagList) != 0) ||
  56             (GetTagData(GLA_Window, 0, tagList) != 0) ||
  57             (GetTagData(GLA_RastPort, 0, tagList) != 0))
  58         {
  59             /* If there already is visible_rp, free it */
  60             if (_ctx->visible_rp)
  61                 FreeRastPort(_ctx->visible_rp);
  62             /* Do standard rast port selection */
  63             HostGLSelectRastPort(_ctx, tagList);
  64
  65             /* Do standard initialization */
  66             HostGLStandardInit(_ctx, tagList);
  67
  68             /* TODO: what to do with visual and framebuffer, if BPP changes, we are in trouble */
  69
  70             /* After the new render target has been attached, invoke framebuffer recalculation */
  71             HostGL_CheckAndUpdateBufferSize(_ctx);
  72         }
  73     }
  74 }