- port to minGw

git-svn-id: http://moon:8086/svn/software/trunk/projects/JaySynth@235 b431acfa-c32f-4a4a-93f1-934dc6c82436
2015-02-21 17:09:43 +00:00
parent 843c6e300c
commit cfc9645b0b
1093 changed files with 426078 additions and 143 deletions
@@ -0,0 +1,115 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software Ltd.
+
+   Permission is granted to use this software under the terms of either:
+   a) the GPL v2 (or any later version)
+   b) the Affero GPL v3
+
+   Details of these licenses can be found at: www.gnu.org/licenses
+
+   JUCE 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.
+
+   ------------------------------------------------------------------------------
+
+   To release a closed-source product which uses JUCE, commercial licenses are
+   available: visit www.juce.com for more information.
+
+  ==============================================================================
+*/
+
+#ifndef JUCE_AUDIOSOURCEPLAYER_H_INCLUDED
+#define JUCE_AUDIOSOURCEPLAYER_H_INCLUDED
+
+
+//==============================================================================
+/**
+    Wrapper class to continuously stream audio from an audio source to an
+    AudioIODevice.
+
+    This object acts as an AudioIODeviceCallback, so can be attached to an
+    output device, and will stream audio from an AudioSource.
+*/
+class JUCE_API  AudioSourcePlayer  : public AudioIODeviceCallback
+{
+public:
+    //==============================================================================
+    /** Creates an empty AudioSourcePlayer. */
+    AudioSourcePlayer();
+
+    /** Destructor.
+
+        Make sure this object isn't still being used by an AudioIODevice before
+        deleting it!
+    */
+    virtual ~AudioSourcePlayer();
+
+    //==============================================================================
+    /** Changes the current audio source to play from.
+
+        If the source passed in is already being used, this method will do nothing.
+        If the source is not null, its prepareToPlay() method will be called
+        before it starts being used for playback.
+
+        If there's another source currently playing, its releaseResources() method
+        will be called after it has been swapped for the new one.
+
+        @param newSource                the new source to use - this will NOT be deleted
+                                        by this object when no longer needed, so it's the
+                                        caller's responsibility to manage it.
+    */
+    void setSource (AudioSource* newSource);
+
+    /** Returns the source that's playing.
+        May return nullptr if there's no source.
+    */
+    AudioSource* getCurrentSource() const noexcept      { return source; }
+
+    /** Sets a gain to apply to the audio data.
+        @see getGain
+    */
+    void setGain (float newGain) noexcept;
+
+    /** Returns the current gain.
+        @see setGain
+    */
+    float getGain() const noexcept                      { return gain; }
+
+    //==============================================================================
+    /** Implementation of the AudioIODeviceCallback method. */
+    void audioDeviceIOCallback (const float** inputChannelData,
+                                int totalNumInputChannels,
+                                float** outputChannelData,
+                                int totalNumOutputChannels,
+                                int numSamples) override;
+
+    /** Implementation of the AudioIODeviceCallback method. */
+    void audioDeviceAboutToStart (AudioIODevice* device) override;
+
+    /** Implementation of the AudioIODeviceCallback method. */
+    void audioDeviceStopped() override;
+
+    /** An alternative method for initialising the source without an AudioIODevice. */
+    void prepareToPlay (double sampleRate, int blockSize);
+
+private:
+    //==============================================================================
+    CriticalSection readLock;
+    AudioSource* source;
+    double sampleRate;
+    int bufferSize;
+    float* channels [128];
+    float* outputChans [128];
+    const float* inputChans [128];
+    AudioSampleBuffer tempBuffer;
+    float lastGain, gain;
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioSourcePlayer)
+};
+
+
+#endif   // JUCE_AUDIOSOURCEPLAYER_H_INCLUDED