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91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
#ifndef SRC_COMMON_H_
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#define SRC_COMMON_H_
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#include <string>
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namespace sharp {
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enum class ImageType {
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UNKNOWN,
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JPEG,
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PNG,
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WEBP,
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TIFF,
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MAGICK,
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OPENSLIDE
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};
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// How many tasks are in the queue?
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extern volatile int counterQueue;
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// How many tasks are being processed?
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extern volatile int counterProcess;
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// Filename extension checkers
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bool IsJpeg(std::string const &str);
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bool IsPng(std::string const &str);
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bool IsWebp(std::string const &str);
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bool IsTiff(std::string const &str);
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bool IsDz(std::string const &str);
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/*
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Determine image format of a buffer.
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*/
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ImageType DetermineImageType(void *buffer, size_t const length);
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/*
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Determine image format of a file.
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*/
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ImageType DetermineImageType(char const *file);
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/*
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Initialise and return a VipsImage from a buffer. Supports JPEG, PNG, WebP and TIFF.
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*/
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VipsImage* InitImage(void *buffer, size_t const length, VipsAccess const access);
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/*
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Initialise and return a VipsImage from a file.
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*/
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VipsImage* InitImage(char const *file, VipsAccess const access);
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/*
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Does this image have an embedded profile?
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*/
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bool HasProfile(VipsImage *image);
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/*
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Does this image have an alpha channel?
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Uses colour space interpretation with number of channels to guess this.
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*/
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bool HasAlpha(VipsImage *image);
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/*
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Get EXIF Orientation of image, if any.
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*/
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int ExifOrientation(VipsImage const *image);
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/*
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Set EXIF Orientation of image.
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*/
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void SetExifOrientation(VipsImage *image, int const orientation);
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/*
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Remove EXIF Orientation from image.
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*/
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void RemoveExifOrientation(VipsImage *image);
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/*
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Returns the window size for the named interpolator. For example,
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a window size of 3 means a 3x3 pixel grid is used for the calculation.
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*/
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int InterpolatorWindowSize(char const *name);
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/*
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Called when a Buffer undergoes GC, required to support mixed runtime libraries in Windows
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*/
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void FreeCallback(char* data, void* hint);
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} // namespace sharp
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#endif // SRC_COMMON_H_
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