avmedia/source/opengl/oglframegrabber.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include "oglframegrabber.hxx"
  11
  12 #include <cppuhelper/supportsservice.hxx>
  13 #include <vcl/bitmapex.hxx>
  14 #include <vcl/graph.hxx>
  15 #include <vcl/salbtype.hxx>
  16 #include <vcl/bmpacc.hxx>
  17
  18 #include <vcl/opengl/OpenGLHelper.hxx>
  19
  20 #include <boost/scoped_array.hpp>
  21
  22 using namespace com::sun::star;
  23 using namespace libgltf;
  24
  25 namespace avmedia { namespace ogl {
  26
  27 OGLFrameGrabber::OGLFrameGrabber(  glTFHandle& rHandle )
  28     : FrameGrabber_BASE()
  29     , m_rHandle( rHandle )
  30 {
  31 }
  32
  33 OGLFrameGrabber::~OGLFrameGrabber()
  34 {
  35 }
  36
  37 uno::Reference< css::graphic::XGraphic > SAL_CALL OGLFrameGrabber::grabFrame( double /*fMediaTime*/ )
  38         throw ( uno::RuntimeException, std::exception )
  39 {
  40     boost::scoped_array<sal_uInt8> pBuffer(new sal_uInt8[m_rHandle.viewport.width * m_rHandle.viewport.height * 4]);
  41     glTFHandle* pHandle = &m_rHandle;
  42     int nRet = gltf_renderer_get_bitmap(&pHandle, 1, reinterpret_cast<char*>(pBuffer.get()), GL_BGRA);
  43     if( nRet != 0 )
  44     {
  45         SAL_WARN("avmedia.opengl", "Error occurred while rendering to bitmap! Error code: " << nRet);
  46         return uno::Reference< css::graphic::XGraphic >();
  47     }
  48     BitmapEx aBitmap = OpenGLHelper::ConvertBGRABufferToBitmapEx(pBuffer.get(), m_rHandle.viewport.width, m_rHandle.viewport.height);
  49     return Graphic( aBitmap ).GetXGraphic();
  50 }
  51
  52 OUString SAL_CALL OGLFrameGrabber::getImplementationName() throw ( uno::RuntimeException, std::exception )
  53 {
  54     return OUString("com.sun.star.comp.avmedia.FrameGrabber_OpenGL");
  55 }
  56
  57 sal_Bool SAL_CALL OGLFrameGrabber::supportsService( const OUString& rServiceName )
  58         throw ( uno::RuntimeException, std::exception )
  59 {
  60     return cppu::supportsService(this, rServiceName);
  61 }
  62
  63 uno::Sequence< OUString > SAL_CALL OGLFrameGrabber::getSupportedServiceNames()
  64         throw ( uno::RuntimeException, std::exception )
  65 {
  66     uno::Sequence< OUString > aRet(1);
  67     aRet[0] = "com.sun.star.media.FrameGrabber_OpenGL";
  68     return aRet;
  69 }
  70
  71 } // namespace ogl
  72 } // namespace avmedia
  73
  74 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */