ceph/src/boost/libs/compute/include/boost/compute/interop/qt/qimage.hpp

   1 //---------------------------------------------------------------------------//
   2 // Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 // See http://boostorg.github.com/compute for more information.
   9 //---------------------------------------------------------------------------//
  10
  11 #ifndef BOOST_COMPUTE_INTEROP_QT_QIMAGE_HPP
  12 #define BOOST_COMPUTE_INTEROP_QT_QIMAGE_HPP
  13
  14 #include <boost/throw_exception.hpp>
  15
  16 #include <boost/compute/command_queue.hpp>
  17 #include <boost/compute/exception/opencl_error.hpp>
  18 #include <boost/compute/image/image2d.hpp>
  19 #include <boost/compute/image/image_format.hpp>
  20 #include <boost/compute/utility/dim.hpp>
  21
  22 #include <QImage>
  23
  24 namespace boost {
  25 namespace compute {
  26
  27 inline image_format qt_qimage_format_to_image_format(const QImage::Format &format)
  28 {
  29     if(format == QImage::Format_RGB32){
  30         return image_format(image_format::bgra, image_format::unorm_int8);
  31     }
  32
  33     BOOST_THROW_EXCEPTION(opencl_error(CL_IMAGE_FORMAT_NOT_SUPPORTED));
  34 }
  35
  36 inline QImage::Format qt_image_format_to_qimage_format(const image_format &format)
  37 {
  38     if(format == image_format(image_format::bgra, image_format::unorm_int8)){
  39         return QImage::Format_RGB32;
  40     }
  41
  42     return QImage::Format_Invalid;
  43 }
  44
  45 inline image_format qt_qimage_get_format(const QImage &image)
  46 {
  47     return qt_qimage_format_to_image_format(image.format());
  48 }
  49
  50 inline void qt_copy_qimage_to_image2d(const QImage &qimage,
  51                                       image2d &image,
  52                                       command_queue &queue)
  53 {
  54     queue.enqueue_write_image(image, image.origin(), image.size(), qimage.constBits());
  55 }
  56
  57 inline void qt_copy_image2d_to_qimage(const image2d &image,
  58                                       QImage &qimage,
  59                                       command_queue &queue)
  60 {
  61     queue.enqueue_read_image(
  62         image, dim(0, 0), dim(qimage.width(), qimage.height()), qimage.bits()
  63     );
  64 }
  65
  66 } // end compute namespace
  67 } // end boost namespace
  68
  69 #endif // BOOST_COMPUTE_INTEROP_QT_QIMAGE_HPP