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Less C, more C++ e.g. namespace, enum class

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Improve image reference handling
This commit is contained in:
Lovell Fuller
2014-11-11 18:28:23 +00:00
parent e465306d97
commit ee513ac7a7
5 changed files with 354 additions and 335 deletions
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95
src/common.h
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@@ -1,53 +1,66 @@
#ifndef SHARP_COMMON_H
#define SHARP_COMMON_H
typedef enum {
UNKNOWN,
JPEG,
PNG,
WEBP,
TIFF,
MAGICK
} ImageType;
namespace sharp {
// Filename extension checkers
bool is_jpeg(std::string const &str);
bool is_png(std::string const &str);
bool is_webp(std::string const &str);
bool is_tiff(std::string const &str);
enum class ImageType {
UNKNOWN,
JPEG,
PNG,
WEBP,
TIFF,
MAGICK
};
// How many tasks are in the queue?
extern volatile int counter_queue;
// How many tasks are in the queue?
extern volatile int counterQueue;
// How many tasks are being processed?
extern volatile int counter_process;
// How many tasks are being processed?
extern volatile int counterProcess;
/*
Initialise a VipsImage from a buffer. Supports JPEG, PNG and WebP.
Returns the ImageType detected, if any.
*/
ImageType
sharp_init_image_from_buffer(VipsImage **image, void *buffer, size_t const length, VipsAccess const access);
// Filename extension checkers
bool IsJpeg(std::string const &str);
bool IsPng(std::string const &str);
bool IsWebp(std::string const &str);
bool IsTiff(std::string const &str);
/*
Initialise a VipsImage from a file.
Returns the ImageType detected, if any.
*/
ImageType
sharp_init_image_from_file(VipsImage **image, char const *file, VipsAccess const access);
/*
Determine image format of a buffer.
*/
ImageType DetermineImageType(void *buffer, size_t const length);
/*
Does this image have an alpha channel?
Uses colour space interpretation with number of channels to guess this.
*/
bool
sharp_image_has_alpha(VipsImage *image);
/*
Determine image format of a file.
*/
ImageType DetermineImageType(char const *file);
/*
Returns the window size for the named interpolator. For example,
a window size of 3 means a 3x3 pixel grid is used for the calculation.
*/
int
sharp_interpolator_window_size(char const *name);
/*
Initialise and return a VipsImage from a buffer. Supports JPEG, PNG, WebP and TIFF.
*/
VipsImage* InitImage(ImageType imageType, void *buffer, size_t const length, VipsAccess const access);
/*
Initialise and return a VipsImage from a file.
*/
VipsImage* InitImage(ImageType imageType, char const *file, VipsAccess const access);
/*
Does this image have an alpha channel?
Uses colour space interpretation with number of channels to guess this.
*/
bool HasAlpha(VipsImage *image);
/*
Get EXIF Orientation of image, if any.
*/
int ExifOrientation(VipsImage const *image);
/*
Returns the window size for the named interpolator. For example,
a window size of 3 means a 3x3 pixel grid is used for the calculation.
*/
int InterpolatorWindowSize(char const *name);
} // namespace
#endif