hyperion.ng/include/hyperion/ImageProcessor.h

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#pragma once
#include <QString>
// Utils includes
#include <utils/Image.h>
// Hyperion includes
#include <hyperion/LedString.h>
#include <hyperion/ImageToLedsMap.h>
#include <utils/Logger.h>
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// settings
#include <utils/settings.h>
// Black border includes
#include <blackborder/BlackBorderProcessor.h>
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class Hyperion;
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///
/// The ImageProcessor translates an RGB-image to RGB-values for the leds. The processing is
/// performed in two steps. First the average color per led-region is computed. Second a
/// color-tranform is applied based on a gamma-correction.
///
class ImageProcessor : public QObject
{
Q_OBJECT
public:
///
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/// Constructs an image-processor for translating an image to led-color values based on the
/// given led-string specification
/// @param[in] ledString LedString data
/// @param[in] hyperion Hyperion instance pointer
///
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ImageProcessor(const LedString& ledString, Hyperion* hyperion);
~ImageProcessor();
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///
/// Specifies the width and height of 'incomming' images. This will resize the buffer-image to
/// match the given size.
/// NB All earlier obtained references will be invalid.
///
/// @param[in] width The new width of the buffer-image
/// @param[in] height The new height of the buffer-image
///
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void setSize(unsigned width, unsigned height);
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///
/// @brief Update the led string (eg on settings change)
///
void setLedString(const LedString& ledString);
/// Returns starte of black border detector
bool blackBorderDetectorEnabled();
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/// Returns the current _userMappingType, this may not be the current applied type!
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int getUserLedMappingType() { return _userMappingType; };
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/// Returns the current _mappingType
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int ledMappingType() { return _mappingType; };
static int mappingTypeToInt(QString mappingType);
static QString mappingTypeToStr(int mappingType);
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///
/// @brief Set the Hyperion::update() requestes led mapping type. This type is used in favour of type set with setLedMappingType.
/// If you don't want to force a mapType set this to -1 (user choice will be set)
/// @param mapType The new mapping type
///
void setHardLedMappingType(int mapType);
public slots:
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/// Enable or disable the black border detector based on component
void setBlackbarDetectDisable(bool enable);
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///
/// @brief Set the user requested led mapping.
/// The type set with setHardLedMappingType() will be used in favour to respect comp specific settings
/// @param mapType The new mapping type
///
void setLedMappingType(int mapType);
public:
///
/// Specifies the width and height of 'incomming' images. This will resize the buffer-image to
/// match the given size.
/// NB All earlier obtained references will be invalid.
///
/// @param[in] image The dimensions taken from image
///
template <typename Pixel_T>
void setSize(const Image<Pixel_T> &image)
{
setSize(image.width(), image.height());
}
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///
/// Processes the image to a list of led colors. This will update the size of the buffer-image
/// if required and call the image-to-leds mapping to determine the mean color per led.
///
/// @param[in] image The image to translate to led values
///
/// @return The color value per led
///
template <typename Pixel_T>
std::vector<ColorRgb> process(const Image<Pixel_T>& image)
{
std::vector<ColorRgb> colors;
if (image.width()>0 && image.height()>0)
{
// Ensure that the buffer-image is the proper size
setSize(image);
// Check black border detection
verifyBorder(image);
// Create a result vector and call the 'in place' functionl
switch (_mappingType)
{
case 1: colors = _imageToLeds->getUniLedColor(image); break;
default: colors = _imageToLeds->getMeanLedColor(image);
}
}
else
{
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Warning(_log, "ImageProcessor::process called with image size 0");
}
// return the computed colors
return colors;
}
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///
/// Determines the led colors of the image in the buffer.
///
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/// @param[in] image The image to translate to led values
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/// @param[out] ledColors The color value per led
///
template <typename Pixel_T>
void process(const Image<Pixel_T>& image, std::vector<ColorRgb>& ledColors)
{
if ( image.width()>0 && image.height()>0)
{
// Ensure that the buffer-image is the proper size
setSize(image);
// Check black border detection
verifyBorder(image);
// Determine the mean or uni colors of each led (using the existing mapping)
switch (_mappingType)
{
case 1: _imageToLeds->getUniLedColor(image, ledColors); break;
default: _imageToLeds->getMeanLedColor(image, ledColors);
}
}
else
{
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Warning(_log, "Called with image size 0");
}
}
///
/// Get the hscan and vscan parameters for a single led
///
/// @param[in] led Index of the led
/// @param[out] hscanBegin begin of the hscan
/// @param[out] hscanEnd end of the hscan
/// @param[out] vscanBegin begin of the hscan
/// @param[out] vscanEnd end of the hscan
/// @return true if the parameters could be retrieved
bool getScanParameters(size_t led, double & hscanBegin, double & hscanEnd, double & vscanBegin, double & vscanEnd) const;
private:
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///
/// Performs black-border detection (if enabled) on the given image
///
/// @param[in] image The image to perform black-border detection on
///
template <typename Pixel_T>
void verifyBorder(const Image<Pixel_T> & image)
{
if (!_borderProcessor->enabled() && ( _imageToLeds->horizontalBorder()!=0 || _imageToLeds->verticalBorder()!=0 ))
{
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Debug(_log, "Reset border");
_borderProcessor->process(image);
delete _imageToLeds;
_imageToLeds = new hyperion::ImageToLedsMap(image.width(), image.height(), 0, 0, _ledString.leds());
}
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if(_borderProcessor->enabled() && _borderProcessor->process(image))
{
const hyperion::BlackBorder border = _borderProcessor->getCurrentBorder();
// Clean up the old mapping
delete _imageToLeds;
if (border.unknown)
{
// Construct a new buffer and mapping
_imageToLeds = new hyperion::ImageToLedsMap(image.width(), image.height(), 0, 0, _ledString.leds());
}
else
{
// Construct a new buffer and mapping
_imageToLeds = new hyperion::ImageToLedsMap(image.width(), image.height(), border.horizontalSize, border.verticalSize, _ledString.leds());
}
//Debug(Logger::getInstance("BLACKBORDER"), "CURRENT BORDER TYPE: unknown=%d hor.size=%d vert.size=%d",
// border.unknown, border.horizontalSize, border.verticalSize );
}
}
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private slots:
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void handleSettingsUpdate(settings::type type, const QJsonDocument& config);
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private:
Logger * _log;
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/// The Led-string specification
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LedString _ledString;
/// The processor for black border detection
hyperion::BlackBorderProcessor * _borderProcessor;
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/// The mapping of image-pixels to leds
hyperion::ImageToLedsMap* _imageToLeds;
/// Type of image 2 led mapping
int _mappingType;
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/// Type of last requested user type
int _userMappingType;
/// Type of last requested hard type
int _hardMappingType;
/// Hyperion instance pointer
Hyperion* _hyperion;
};