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Rework of color spaces, some bugfixing of color spaces

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This commit is contained in:
Jakub Melka
2021-01-02 18:27:22 +01:00
parent b29791b890
commit a2dc4e16a8
8 changed files with 729 additions and 9 deletions
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68
Pdf4QtLib/sources/pdfcms.h
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@ -127,14 +127,21 @@ public:
/// \param Three color channel value (X,Y,Z channel)
/// \param intent Rendering intent
/// \param reporter Render error reporter (used, when color transform fails)
virtual QColor getColorFromXYZ(const PDFColor3& whitePoint, const PDFColor3& color, RenderingIntent intent, PDFRenderErrorReporter* reporter) const = 0;
virtual QColor getColorFromXYZ(const PDFColor3& whitePoint,
const PDFColor3& color,
RenderingIntent intent,
PDFRenderErrorReporter* reporter) const = 0;
/// Computes color from ICC color profile
/// \param color Input color
/// \param iccID Unique ICC profile identifier
/// \param iccData Color profile data
/// \param reporter Render error reporter (used, when color transform fails)
virtual QColor getColorFromICC(const PDFColor& color, RenderingIntent renderingIntent, const QByteArray& iccID, const QByteArray& iccData, PDFRenderErrorReporter* reporter) const = 0;
virtual QColor getColorFromICC(const PDFColor& color,
RenderingIntent renderingIntent,
const QByteArray& iccID,
const QByteArray& iccData,
PDFRenderErrorReporter* reporter) const = 0;
/// Fills colors in Device Gray color space to the RGB buffer. If error occurs, then false is returned.
/// Caller then should handle this - try to convert color as accurate as possible.
@ -142,7 +149,10 @@ public:
/// \param intent Rendering intent
/// \param outputBuffer Output buffer in format RGB_888 (8-bit RGB values)
/// \param reporter Render error reporter (used, when color transform fails)
virtual bool fillRGBBufferFromDeviceGray(const std::vector<float>& colors, RenderingIntent intent, unsigned char* outputBuffer, PDFRenderErrorReporter* reporter) const = 0;
virtual bool fillRGBBufferFromDeviceGray(const std::vector<float>& colors,
RenderingIntent intent,
unsigned char* outputBuffer,
PDFRenderErrorReporter* reporter) const = 0;
/// Fills colors in Device RGB color space to RGB buffer. If error occurs, then false is returned.
/// Caller then should handle this - try to convert color as accurate as possible.
@ -150,7 +160,10 @@ public:
/// \param intent Rendering intent
/// \param outputBuffer Output buffer in format RGB_888 (8-bit RGB values)
/// \param reporter Render error reporter (used, when color transform fails)
virtual bool fillRGBBufferFromDeviceRGB(const std::vector<float>& colors, RenderingIntent intent, unsigned char* outputBuffer, PDFRenderErrorReporter* reporter) const = 0;
virtual bool fillRGBBufferFromDeviceRGB(const std::vector<float>& colors,
RenderingIntent intent,
unsigned char* outputBuffer,
PDFRenderErrorReporter* reporter) const = 0;
/// Fills colors in Device CMYK color space to the RGB buffer. If error occurs, then false is returned.
/// Caller then should handle this - try to convert color as accurate as possible.
@ -158,7 +171,10 @@ public:
/// \param intent Rendering intent
/// \param outputBuffer Output buffer in format RGB_888 (8-bit RGB values)
/// \param reporter Render error reporter (used, when color transform fails)
virtual bool fillRGBBufferFromDeviceCMYK(const std::vector<float>& colors, RenderingIntent intent, unsigned char* outputBuffer, PDFRenderErrorReporter* reporter) const = 0;
virtual bool fillRGBBufferFromDeviceCMYK(const std::vector<float>& colors,
RenderingIntent intent,
unsigned char* outputBuffer,
PDFRenderErrorReporter* reporter) const = 0;
/// Fills colors in XYZ color space to the RGB buffer. If error occurs, then false is returned.
/// Caller then should handle this - try to convert color as accurate as possible.
@ -166,14 +182,51 @@ public:
/// \param Three color channel value (X,Y,Z channel)
/// \param intent Rendering intent
/// \param reporter Render error reporter (used, when color transform fails)
virtual bool fillRGBBufferFromXYZ(const PDFColor3& whitePoint, const std::vector<float>& colors, RenderingIntent intent, unsigned char* outputBuffer, PDFRenderErrorReporter* reporter) const = 0;
virtual bool fillRGBBufferFromXYZ(const PDFColor3& whitePoint,
const std::vector<float>& colors,
RenderingIntent intent,
unsigned char* outputBuffer,
PDFRenderErrorReporter* reporter) const = 0;
/// Fills RGB buffer from ICC color profile colors
/// \param colors Input colors
/// \param iccID Unique ICC profile identifier
/// \param iccData Color profile data
/// \param reporter Render error reporter (used, when color transform fails)
virtual bool fillRGBBufferFromICC(const std::vector<float>& colors, RenderingIntent renderingIntent, unsigned char* outputBuffer, const QByteArray& iccID, const QByteArray& iccData, PDFRenderErrorReporter* reporter) const = 0;
virtual bool fillRGBBufferFromICC(const std::vector<float>& colors,
RenderingIntent renderingIntent,
unsigned char* outputBuffer,
const QByteArray& iccID,
const QByteArray& iccData,
PDFRenderErrorReporter* reporter) const = 0;
enum ColorSpaceType
{
Invalid,
DeviceGray,
DeviceRGB,
DeviceCMYK,
XYZ,
ICC
};
struct ColorSpaceTransformParams
{
ColorSpaceType sourceType = ColorSpaceType::Invalid;
ColorSpaceType targetType = ColorSpaceType::Invalid;
QByteArray sourceIccId;
QByteArray targetIccId;
QByteArray sourceIccData;
QByteArray targetIccData;
};
/// Transforms color between two color spaces.
virtual bool transformColorSpace(const ColorSpaceTransformParams& params) const = 0;
/// Get D50 white point for XYZ color space
static PDFColor3 getDefaultXYZWhitepoint();
};
using PDFCMSPointer = QSharedPointer<PDFCMS>;
@ -195,6 +248,7 @@ public:
virtual bool fillRGBBufferFromDeviceCMYK(const std::vector<float>& colors, RenderingIntent intent, unsigned char* outputBuffer, PDFRenderErrorReporter* reporter) const override;
virtual bool fillRGBBufferFromXYZ(const PDFColor3& whitePoint, const std::vector<float>& colors, RenderingIntent intent, unsigned char* outputBuffer, PDFRenderErrorReporter* reporter) const override;
virtual bool fillRGBBufferFromICC(const std::vector<float>& colors, RenderingIntent renderingIntent, unsigned char* outputBuffer, const QByteArray& iccID, const QByteArray& iccData, PDFRenderErrorReporter* reporter) const override;
virtual bool transformColorSpace(const ColorSpaceTransformParams& params) const override;
};
struct PDFColorProfileIdentifier