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Image processing for transparency renderer

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Jakub Melka
2021-02-21 16:42:24 +01:00
parent 114dfcb895
commit d632595710
6 changed files with 610 additions and 17 deletions
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11
Pdf4QtLib/sources/pdfutils.h
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@@ -321,6 +321,17 @@ static inline constexpr PDFReal interpolate(PDFReal x, PDFReal x_min, PDFReal x_
return y_min + (x - x_min) * (y_max - y_min) / (x_max - x_min);
}
/// Performs linear mapping of value x in interval [x_min, x_max] to the interval [y_min, y_max].
/// \param x Value to be linearly remapped from interval [x_min, x_max] to the interval [y_min, y_max].
/// \param x_min Start of the input interval
/// \param x_max End of the input interval
/// \param y_min Start of the output interval
/// \param y_max End of the output interval
static inline constexpr PDFColorComponent interpolateColors(PDFColorComponent x, PDFColorComponent x_min, PDFColorComponent x_max, PDFColorComponent y_min, PDFColorComponent y_max)
{
return y_min + (x - x_min) * (y_max - y_min) / (x_max - x_min);
}
inline
std::vector<uint8_t> convertByteArrayToVector(const QByteArray& data)
{