//
// Created by YY on 2021/12/2.
//

#include <stdint.h>
#include <stdio.h>
#include <setjmp.h>
#include "jpeg.h"
#include "jpeglib.h"
#include "turbojpeg.h"

static tjhandle handle = NULL;

void init_JPEG_turbo(void)
{
    handle = tjInitDecompress();
}

void uninit_JPEG_turbo(void) {
    if (handle) {
        tjDestroy(handle);
        handle = NULL;
    }
}

void read_JPEG_turbo(const uint8_t *jpg, int length, uint8_t *rgba)
{
    int width, height, subsample, colorspace;

    tjDecompressHeader3(handle, jpg, length, &width, &height, &subsample, &colorspace);

    tjDecompress2(handle, jpg,	length, rgba,	width, 0, height, TJPF_RGBA,
                  TJFLAG_FASTDCT| TJFLAG_FASTUPSAMPLE);
}