libvaapi/VaapiImage.h

   1 // VaapiImage.h: VA image 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 #ifndef GNASH_VAAPIIMAGE_H
  21 #define GNASH_VAAPIIMAGE_H
  22
  23 #include <boost/scoped_array.hpp>
  24 #include <memory>
  25
  26 #include "dsodefs.h"
  27 #include "vaapi_common.h"
  28 #include "VaapiImageFormat.h"
  29
  30 // Forward declarations
  31 struct SwsContext;
  32
  33 namespace gnash {
  34
  35 // Forward declarations
  36 class VaapiSurface;
  37 class VAImageWrapper;
  38 class SwsContextWrapper;
  39
  40 /// VA image abstraction
  41 class DSOEXPORT VaapiImage
  42 {
  43     VaapiImageFormat    _format;
  44     VAImage             _image;
  45     boost::uint8_t *    _image_data;
  46
  47     /// Create VA image
  48     bool create(unsigned int width, unsigned int height);
  49
  50     /// Destroy VA image
  51     void destroy();
  52
  53 public:
  54     VaapiImage(unsigned int     width,
  55                unsigned int     height,
  56                VaapiImageFormat format = VAAPI_IMAGE_RGB32);
  57     ~VaapiImage();
  58
  59     /// Get VA image ID
  60     VAImageID get() const { return _image.image_id; }
  61
  62     /// Get image format
  63     VaapiImageFormat format() const { return _format; }
  64
  65     /// Get image width
  66     unsigned int width() const { return _image.width; }
  67
  68     /// Get image height
  69     unsigned int height() const { return _image.height; }
  70
  71     /// Check whether the VA image is mapped
  72     bool isMapped() const { return _image_data != NULL; }
  73
  74     /// Map image data
  75     bool map();
  76
  77     /// Unmap image data
  78     bool unmap();
  79
  80     /// Get number of planes
  81     unsigned int getPlaneCount() const { return _image.num_planes; }
  82
  83     /// Get pixels for the specified plane
  84     boost::uint8_t *getPlane(int plane) const;
  85
  86     /// Get scanline pitch for the specified plane
  87     unsigned int getPitch(int plane) const;
  88 };
  89
  90 } // gnash namespace
  91
  92 #endif // GNASH_VAAPIIMAGE_H
  93
  94 // local Variables:
  95 // mode: C++
  96 // indent-tabs-mode: nil
  97 // End:
  98
  99