opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters)
{
    opj_image_cmptparm_t cmptparm[4];   /* maximum of 4 components */
    OPJ_UINT8 lut_R[256], lut_G[256], lut_B[256];
    OPJ_UINT8 const* pLUT[3];
    opj_image_t * image = NULL;
    FILE *IN;
    OPJ_BITMAPFILEHEADER File_h;
    OPJ_BITMAPINFOHEADER Info_h;
    OPJ_UINT32 i, palette_len, numcmpts = 1U;
    OPJ_BOOL l_result = OPJ_FALSE;
    OPJ_UINT8* pData = NULL;
    OPJ_UINT32 stride;

    pLUT[0] = lut_R;
    pLUT[1] = lut_G;
    pLUT[2] = lut_B;

    IN = fopen(filename, "rb");
    if (!IN) {
        fprintf(stderr, "Failed to open %s for reading !!\n", filename);
        return NULL;
    }

    if (!bmp_read_file_header(IN, &File_h)) {
        fclose(IN);
        return NULL;
    }
    if (!bmp_read_info_header(IN, &Info_h)) {
        fclose(IN);
        return NULL;
    }

    /* Load palette */
    if (Info_h.biBitCount <= 8U) {
        memset(&lut_R[0], 0, sizeof(lut_R));
        memset(&lut_G[0], 0, sizeof(lut_G));
        memset(&lut_B[0], 0, sizeof(lut_B));

        palette_len = Info_h.biClrUsed;
        if ((palette_len == 0U) && (Info_h.biBitCount <= 8U)) {
            palette_len = (1U << Info_h.biBitCount);
        }
        if (palette_len > 256U) {
            palette_len = 256U;
        }
        if (palette_len > 0U) {
            OPJ_UINT8 has_color = 0U;
            for (i = 0U; i < palette_len; i++) {
                lut_B[i] = (OPJ_UINT8)getc(IN);
                lut_G[i] = (OPJ_UINT8)getc(IN);
                lut_R[i] = (OPJ_UINT8)getc(IN);
                (void)getc(IN); /* padding */
                has_color |= (lut_B[i] ^ lut_G[i]) | (lut_G[i] ^ lut_R[i]);
            }
            if (has_color) {
                numcmpts = 3U;
            }
        }
    } else {
        numcmpts = 3U;
        if ((Info_h.biCompression == 3) && (Info_h.biAlphaMask != 0U)) {
            numcmpts++;
        }
    }

    if (Info_h.biWidth == 0 || Info_h.biHeight == 0) {
        fclose(IN);
        return NULL;
    }

    if (Info_h.biBitCount > (((OPJ_UINT32) - 1) - 31) / Info_h.biWidth) {
        fclose(IN);
        return NULL;
    }
    stride = ((Info_h.biWidth * Info_h.biBitCount + 31U) / 32U) *
             4U; /* rows are aligned on 32bits */
    if (Info_h.biBitCount == 4 &&
            Info_h.biCompression == 2) { /* RLE 4 gets decoded as 8 bits data for now... */
        if (8 > (((OPJ_UINT32) - 1) - 31) / Info_h.biWidth) {
            fclose(IN);
            return NULL;
        }
        stride = ((Info_h.biWidth * 8U + 31U) / 32U) * 4U;
    }

    if (stride > ((OPJ_UINT32) - 1) / sizeof(OPJ_UINT8) / Info_h.biHeight) {
        fclose(IN);
        return NULL;
    }
    pData = (OPJ_UINT8 *) calloc(1, stride * Info_h.biHeight * sizeof(OPJ_UINT8));
    if (pData == NULL) {
        fclose(IN);
        return NULL;
    }
    /* Place the cursor at the beginning of the image information */
    fseek(IN, 0, SEEK_SET);
    fseek(IN, (long)File_h.bfOffBits, SEEK_SET);

    switch (Info_h.biCompression) {
    case 0:
    case 3:
        /* read raw data */
        l_result = bmp_read_raw_data(IN, pData, stride, Info_h.biWidth,
                                     Info_h.biHeight);
        break;
    case 1:
        /* read rle8 data */
        l_result = bmp_read_rle8_data(IN, pData, stride, Info_h.biWidth,
                                      Info_h.biHeight);
        break;
    case 2:
        /* read rle4 data */
        l_result = bmp_read_rle4_data(IN, pData, stride, Info_h.biWidth,
                                      Info_h.biHeight);
        break;
    default:
        fprintf(stderr, "Unsupported BMP compression\n");
        l_result = OPJ_FALSE;
        break;
    }
    if (!l_result) {
        free(pData);
        fclose(IN);
        return NULL;
    }

    /* create the image */
    memset(&cmptparm[0], 0, sizeof(cmptparm));
    for (i = 0; i < 4U; i++) {
        cmptparm[i].prec = 8;
        cmptparm[i].bpp  = 8;
        cmptparm[i].sgnd = 0;
        cmptparm[i].dx   = (OPJ_UINT32)parameters->subsampling_dx;
        cmptparm[i].dy   = (OPJ_UINT32)parameters->subsampling_dy;
        cmptparm[i].w    = Info_h.biWidth;
        cmptparm[i].h    = Info_h.biHeight;
    }

    image = opj_image_create(numcmpts, &cmptparm[0],
                             (numcmpts == 1U) ? OPJ_CLRSPC_GRAY : OPJ_CLRSPC_SRGB);
    if (!image) {
        fclose(IN);
        free(pData);
        return NULL;
    }
    if (numcmpts == 4U) {
        image->comps[3].alpha = 1;
    }

    /* set image offset and reference grid */
    image->x0 = (OPJ_UINT32)parameters->image_offset_x0;
    image->y0 = (OPJ_UINT32)parameters->image_offset_y0;
    image->x1 = image->x0 + (Info_h.biWidth  - 1U) * (OPJ_UINT32)
                parameters->subsampling_dx + 1U;
    image->y1 = image->y0 + (Info_h.biHeight - 1U) * (OPJ_UINT32)
                parameters->subsampling_dy + 1U;

    /* Read the data */
    if (Info_h.biBitCount == 24 && Info_h.biCompression == 0) { /*RGB */
        bmp24toimage(pData, stride, image);
    } else if (Info_h.biBitCount == 8 &&
               Info_h.biCompression == 0) { /* RGB 8bpp Indexed */
        bmp8toimage(pData, stride, image, pLUT);
    } else if (Info_h.biBitCount == 8 && Info_h.biCompression == 1) { /*RLE8*/
        bmp8toimage(pData, stride, image, pLUT);
    } else if (Info_h.biBitCount == 4 && Info_h.biCompression == 2) { /*RLE4*/
        bmp8toimage(pData, stride, image,
                    pLUT); /* RLE 4 gets decoded as 8 bits data for now */
    } else if (Info_h.biBitCount == 32 && Info_h.biCompression == 0) { /* RGBX */
        bmpmask32toimage(pData, stride, image, 0x00FF0000U, 0x0000FF00U, 0x000000FFU,
                         0x00000000U);
    } else if (Info_h.biBitCount == 32 && Info_h.biCompression == 3) { /* bitmask */
        bmpmask32toimage(pData, stride, image, Info_h.biRedMask, Info_h.biGreenMask,
                         Info_h.biBlueMask, Info_h.biAlphaMask);
    } else if (Info_h.biBitCount == 16 && Info_h.biCompression == 0) { /* RGBX */
        bmpmask16toimage(pData, stride, image, 0x7C00U, 0x03E0U, 0x001FU, 0x0000U);
    } else if (Info_h.biBitCount == 16 && Info_h.biCompression == 3) { /* bitmask */
        if ((Info_h.biRedMask == 0U) && (Info_h.biGreenMask == 0U) &&
                (Info_h.biBlueMask == 0U)) {
            Info_h.biRedMask   = 0xF800U;
            Info_h.biGreenMask = 0x07E0U;
            Info_h.biBlueMask  = 0x001FU;
        }
        bmpmask16toimage(pData, stride, image, Info_h.biRedMask, Info_h.biGreenMask,
                         Info_h.biBlueMask, Info_h.biAlphaMask);
    } else {
        opj_image_destroy(image);
        image = NULL;
        fprintf(stderr,
                "Other system than 24 bits/pixels or 8 bits (no RLE coding) is not yet implemented [%d]\n",
                Info_h.biBitCount);
    }
    free(pData);
    fclose(IN);
    return image;
}