Initial commit.

dll/steam_music.cpp

@@ -0,0 +1,116 @@
+/* Copyright (C) 2019 Mr Goldberg
+   This file is part of the Goldberg Emulator
+
+   The Goldberg Emulator is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   The Goldberg Emulator 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the Goldberg Emulator; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "steam_music.h" 
+
+Steam_Music::Steam_Music(class SteamCallBacks *callbacks)
+{
+    playing = 0;
+    volume = 1.0;
+    this->callbacks = callbacks;
+}
+
+void Steam_Music::change_playstate(int new_playing)
+{
+    if (new_playing != playing) {
+        PlaybackStatusHasChanged_t data;
+        callbacks->addCBResult(data.k_iCallback, &data, sizeof(data));
+    }
+
+    playing = new_playing;
+}
+
+bool Steam_Music::BIsEnabled()
+{
+    PRINT_DEBUG("Steam_Music::BIsEnabled\n");
+    return true;
+}
+
+bool Steam_Music::BIsPlaying()
+{
+    PRINT_DEBUG("Steam_Music::BIsPlaying\n");
+    return playing > 0;
+}
+
+
+AudioPlayback_Status Steam_Music::GetPlaybackStatus()
+{
+    PRINT_DEBUG("Steam_Music::GetPlaybackStatus\n");
+    if (playing == 0) {
+        return AudioPlayback_Idle;
+    }
+
+    if (playing == 1) {
+        return AudioPlayback_Paused;
+    }
+
+    if (playing == 2) {
+        return AudioPlayback_Playing;
+    }
+
+    return AudioPlayback_Idle;
+}
+
+void Steam_Music::Play()
+{
+    PRINT_DEBUG("Steam_Music::Play\n");
+    change_playstate(2);
+}
+
+void Steam_Music::Pause()
+{
+    PRINT_DEBUG("Steam_Music::Pause\n");
+    change_playstate(1);
+}
+
+void Steam_Music::PlayPrevious()
+{
+    PRINT_DEBUG("Steam_Music::PlayPrevious\n");
+    change_playstate(2);
+}
+
+void Steam_Music::PlayNext()
+{
+    PRINT_DEBUG("Steam_Music::PlayNext\n");
+    change_playstate(2);
+}
+
+
+// volume is between 0.0 and 1.0
+void Steam_Music::SetVolume( float flVolume )
+{
+    PRINT_DEBUG("Steam_Music::SetVolume\n");
+
+    if (flVolume > 1.0)
+        flVolume = 1.0;
+    if (flVolume < 0.0)
+        flVolume = 0.0;
+
+    if (flVolume != volume) {
+        VolumeHasChanged_t data;
+        data.m_flNewVolume = volume;
+        callbacks->addCBResult(data.k_iCallback, &data, sizeof(data));
+    }
+
+    volume = flVolume;
+}
+
+float Steam_Music::GetVolume()
+{
+    PRINT_DEBUG("Steam_Music::GetVolume\n");
+    return volume;
+}