* Copyright 2021, Jérôme Duval, jerome.duval@gmail.com.
* Distributed under the terms of the MIT License.
*/
#ifndef LIBRAW_H
#define LIBRAW_H
#include <DataIO.h>
#include <SupportDefs.h>
#include <libraw/libraw_const.h>
class LibRaw;
class LibRaw_haiku_datastream;
struct image_meta_info {
char manufacturer[64];
char model[64];
char software[64];
float flash_used;
float iso_speed;
float shutter;
float aperture;
float focal_length;
double pixel_aspect;
uint32 raw_width;
uint32 raw_height;
int flip;
uint32 dng_version;
uint32 shot_order;
int32 black;
int32 maximum;
float camera_multipliers[4];
float pre_multipliers[4];
float rgb_camera[3][4];
time_t timestamp;
};
struct image_data_info {
uint32 width;
uint32 height;
uint32 output_width;
uint32 output_height;
uint32 bits_per_sample;
uint32 compression;
uint32 photometric_interpretation;
uint32 flip;
uint32 samples;
uint32 bytes;
off_t data_offset;
bool is_raw;
};
#define COMPRESSION_NONE 1
#define COMPRESSION_OLD_JPEG 6 // Old JPEG (before 6.0)
#define COMPRESSION_PACKBITS 32773 // Macintosh RLE
typedef void (*monitor_hook)(const char* message, float percentage, void* data);
class LibRAW {
public:
LibRAW(BPositionIO& stream);
~LibRAW();
status_t Identify();
status_t ReadImageAt(uint32 index, uint8*& outputBuffer,
size_t& bufferSize);
void GetMetaInfo(image_meta_info& metaInfo) const;
uint32 CountImages() const;
status_t ImageAt(uint32 index, image_data_info& info)
const;
status_t GetEXIFTag(off_t& offset, size_t& length,
bool& bigEndian) const;
void SetProgressMonitor(monitor_hook hook,
void* data);
void SetHalfSize(bool half);
private:
static int ProgressCallback(void *data,
enum LibRaw_progress p,
int iteration, int expected);
int _ProgressCallback(enum LibRaw_progress p,
int iteration, int expected);
monitor_hook fProgressMonitor;
void* fProgressData;
LibRaw* fRaw;
LibRaw_haiku_datastream* fDatastream;
};
#endif
