diff options
-rw-r--r-- | libs/ardour/ardour/audiorom.h | 50 | ||||
-rw-r--r-- | libs/ardour/audiorom.cc | 54 | ||||
-rw-r--r-- | libs/ardour/wscript | 1 |
3 files changed, 105 insertions, 0 deletions
diff --git a/libs/ardour/ardour/audiorom.h b/libs/ardour/ardour/audiorom.h new file mode 100644 index 0000000000..605e12dfa7 --- /dev/null +++ b/libs/ardour/ardour/audiorom.h @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2020 Robin Gareus <robin@gareus.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef __ardour_audio_rom_h__ +#define __ardour_audio_rom_h__ + +#include "ardour/libardour_visibility.h" +#include "ardour/readable.h" +#include "ardour/types.h" + +namespace ARDOUR { + +class Session; + +class LIBARDOUR_API AudioRom : public Readable +{ +public: + static boost::shared_ptr<AudioRom> new_rom (Sample*, size_t); + ~AudioRom(); + + samplecnt_t read (Sample*, samplepos_t pos, samplecnt_t cnt, int channel) const; + samplecnt_t readable_length() const { return _size; } + uint32_t n_channels () const { return 1; } + +private: + AudioRom (Sample*, size_t); + AudioRom (AudioRom const&); + + Sample* _rom; + samplecnt_t _size; +}; + +} + +#endif /* __ardour_readable_h__ */ diff --git a/libs/ardour/audiorom.cc b/libs/ardour/audiorom.cc new file mode 100644 index 0000000000..4550ecf7f5 --- /dev/null +++ b/libs/ardour/audiorom.cc @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2020 Robin Gareus <robin@gareus.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "pbd/failed_constructor.h" +#include "ardour/audiorom.h" + +using namespace ARDOUR; + +AudioRom::AudioRom (Sample* rom, size_t size) + : _size (size) +{ + _rom = (Sample*) malloc (sizeof (Sample) * _size); + if (!_rom) { + throw failed_constructor (); + } + memcpy (_rom, rom, sizeof (Sample) * _size); +} + +boost::shared_ptr<AudioRom> +AudioRom::new_rom (Sample* rom, size_t size) +{ + return boost::shared_ptr<AudioRom> (new AudioRom (rom, size)); +} + +AudioRom::~AudioRom () +{ + free (_rom); +} + +samplecnt_t +AudioRom::read (Sample* dst, samplepos_t pos, samplecnt_t cnt, int channel) const +{ + if (channel != 0 || pos >= _size) { + return 0; + } + samplecnt_t to_copy = std::min (cnt, _size - pos); + memcpy (dst, &_rom[pos], sizeof (Sample) * _size); + return to_copy; +} diff --git a/libs/ardour/wscript b/libs/ardour/wscript index 8d6090d956..e03fbf65e4 100644 --- a/libs/ardour/wscript +++ b/libs/ardour/wscript @@ -38,6 +38,7 @@ libardour_sources = [ 'audiofile_tagger.cc', 'audiofilesource.cc', 'audioregion.cc', + 'audiorom.cc', 'audiosource.cc', 'auditioner.cc', 'automatable.cc', |