60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
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#pragma once
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// STL includes
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#include <cstdio>
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// Hyperion-Leddevice includes
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#include <leddevice/LedDevice.h>
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class LedDevicePiBlaster : public LedDevice
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{
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public:
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///
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/// Constructs the PiBlaster device which writes to the indicated device and for the assigned
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/// channels
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/// @param deviceName The name of the output device
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/// @param channelAssignment The RGB-Channel assignment (8 characters long)
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///
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LedDevicePiBlaster(const std::string & deviceName, const std::string & channelAssignment);
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virtual ~LedDevicePiBlaster();
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///
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/// Attempts to open the piblaster-device. This will only succeed if the device is not yet open
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/// and the device is available.
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///
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/// @param report If true errors are writen to the standard error else silent
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/// @return Zero on succes else negative
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///
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int open(bool report = true);
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///
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/// Writes the colors to the PiBlaster device
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///
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/// @param ledValues The color value for each led
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///
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/// @return Zero on success else negative
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///
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int write(const std::vector<ColorRgb> &ledValues);
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///
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/// Switches off the leds
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///
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/// @return Zero on success else negative
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///
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int switchOff();
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private:
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/// The name of the output device (very likely '/dev/pi-blaster')
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const std::string _deviceName;
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/// String with eight characters with the rgb-channel assignment per pwm-channel
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/// ('r' = red, 'g' = green, 'b' = blue, ' ' = empty)
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const std::string _channelAssignment;
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/// File-Pointer to the PiBlaster device
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FILE * _fid;
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};
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