102 lines
2.2 KiB
C++
102 lines
2.2 KiB
C++
/*
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* Copyright (C) 2003-2015 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_OUTPUT_WRAPPER_HXX
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#define MPD_OUTPUT_WRAPPER_HXX
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#include "util/Cast.hxx"
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struct ConfigBlock;
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template<class T>
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struct AudioOutputWrapper {
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static T &Cast(AudioOutput &ao) {
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return ContainerCast(ao, &T::base);
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}
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static AudioOutput *Init(const ConfigBlock &block, Error &error) {
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T *t = T::Create(block, error);
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return t != nullptr
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? &t->base
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: nullptr;
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}
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static void Finish(AudioOutput *ao) {
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T *t = &Cast(*ao);
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delete t;
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}
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static bool Enable(AudioOutput *ao, Error &error) {
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T &t = Cast(*ao);
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return t.Enable(error);
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}
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static void Disable(AudioOutput *ao) {
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T &t = Cast(*ao);
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t.Disable();
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}
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static bool Open(AudioOutput *ao, AudioFormat &audio_format,
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Error &error) {
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T &t = Cast(*ao);
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return t.Open(audio_format, error);
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}
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static void Close(AudioOutput *ao) {
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T &t = Cast(*ao);
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t.Close();
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}
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gcc_pure
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static unsigned Delay(AudioOutput *ao) {
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T &t = Cast(*ao);
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return t.Delay();
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}
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gcc_pure
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static void SendTag(AudioOutput *ao, const Tag &tag) {
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T &t = Cast(*ao);
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t.SendTag(tag);
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}
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static size_t Play(AudioOutput *ao, const void *chunk, size_t size,
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Error &error) {
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T &t = Cast(*ao);
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return t.Play(chunk, size, error);
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}
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static void Drain(AudioOutput *ao) {
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T &t = Cast(*ao);
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t.Drain();
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}
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static void Cancel(AudioOutput *ao) {
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T &t = Cast(*ao);
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t.Cancel();
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}
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gcc_pure
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static bool Pause(AudioOutput *ao) {
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T &t = Cast(*ao);
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return t.Pause();
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}
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};
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#endif
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