libvaapi/VaapiSubpicture.cpp

   1 // VaapiSubpicture.cpp: VA subpicture abstraction
   2 //
   3 // Copyright (C) 2009, 2010 Free Software Foundation, Inc.
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18 //
  19
  20 #include <boost/format.hpp>
  21
  22 #include "log.h"
  23 #include "VaapiSubpicture.h"
  24 #include "VaapiGlobalContext.h"
  25 #include "VaapiException.h"
  26 #include "VaapiImage.h"
  27 #include "vaapi_utils.h"
  28
  29 namespace gnash {
  30
  31 VaapiSubpicture::VaapiSubpicture(boost::shared_ptr<VaapiImage> image)
  32     : _image(image)
  33     , _subpicture(VA_INVALID_ID)
  34 {
  35     log_debug("VaapiSubpicture::VaapiSubpicture(): format '%s'\n", string_of_FOURCC(image->format()));
  36
  37     if (!create()) {
  38         boost::format msg;
  39         msg = boost::format("Could not create %s subpicture")
  40             % string_of_FOURCC(image->format());
  41         throw VaapiException(msg.str());
  42     }
  43 }
  44
  45 VaapiSubpicture::~VaapiSubpicture()
  46 {
  47     GNASH_REPORT_FUNCTION;
  48
  49     destroy();
  50 }
  51
  52 bool VaapiSubpicture::create()
  53 {
  54     GNASH_REPORT_FUNCTION;
  55
  56     if (!_image.get()) {
  57         return false;
  58     }
  59
  60     VaapiGlobalContext * const gvactx = VaapiGlobalContext::get();
  61     if (!gvactx) {
  62         return false;
  63     }
  64
  65     VASubpictureID subpicture;
  66     VAStatus status = vaCreateSubpicture(gvactx->display(), _image->get(), &subpicture);
  67     if (!vaapi_check_status(status, "vaCreateSubpicture()")) {
  68         return false;
  69     }
  70
  71     _subpicture = subpicture;
  72     return true;
  73 }
  74
  75 void VaapiSubpicture::destroy()
  76 {
  77     VaapiGlobalContext * const gvactx = VaapiGlobalContext::get();
  78     if (!gvactx) {
  79         return;
  80     }
  81
  82     if (_subpicture != VA_INVALID_ID) {
  83         VAStatus status = vaDestroySubpicture(gvactx->display(), _subpicture);
  84         if (!vaapi_check_status(status, "vaDestroySubpicture()"))
  85             return;
  86         _subpicture = VA_INVALID_ID;
  87     }
  88 }
  89
  90 } // end of gnash namespace
  91
  92 // local Variables:
  93 // mode: C++
  94 // indent-tabs-mode: nil
  95 // End: