/*
 * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>

#include "opj_config.h"
#include "openjpeg.h"
#include "stdlib.h"

/* -------------------------------------------------------------------------- */

/**
sample error debug callback expecting no client object
*/
static void error_callback(const char *msg, void *client_data)
{
    (void)client_data;
    fprintf(stdout, "[ERROR] %s", msg);
}
/**
sample warning debug callback expecting no client object
*/
static void warning_callback(const char *msg, void *client_data)
{
    (void)client_data;
    fprintf(stdout, "[WARNING] %s", msg);
}
/**
sample debug callback expecting no client object
*/
static void info_callback(const char *msg, void *client_data)
{
    (void)client_data;
    fprintf(stdout, "[INFO] %s", msg);
}

static INLINE OPJ_UINT32 opj_uint_max(OPJ_UINT32  a, OPJ_UINT32  b)
{
    return (a > b) ? a : b;
}

static INLINE OPJ_UINT32 opj_uint_min(OPJ_UINT32  a, OPJ_UINT32  b)
{
    return (a < b) ? a : b;
}

/* -------------------------------------------------------------------------- */

#define NUM_COMPS_MAX 4
int main(int argc, char *argv[])
{
    opj_cparameters_t l_param;
    opj_codec_t * l_codec;
    opj_image_t * l_image;
    opj_image_cmptparm_t l_params [NUM_COMPS_MAX];
    opj_stream_t * l_stream;
    OPJ_UINT32 l_nb_tiles_width, l_nb_tiles_height, l_nb_tiles;
    OPJ_UINT32 l_data_size;
    size_t len;

#ifdef USING_MCT
    const OPJ_FLOAT32 l_mct [] = {
        1, 0, 0,
        0, 1, 0,
        0, 0, 1
    };

    const OPJ_INT32 l_offsets [] = {
        128, 128, 128
    };
#endif

    opj_image_cmptparm_t * l_current_param_ptr;
    OPJ_UINT32 i;
    OPJ_BYTE *l_data;

    OPJ_UINT32 num_comps;
    int image_width;
    int image_height;
    int tile_width;
    int tile_height;
    int comp_prec;
    int irreversible;
    const char *output_file;
    int cblockw_init = 64;
    int cblockh_init = 64;
    int numresolution = 6;
    OPJ_UINT32 offsetx = 0;
    OPJ_UINT32 offsety = 0;
    int quality_loss = 1;
    int is_rand = 0;

    opj_set_default_encoder_parameters(&l_param);

    /* should be test_tile_encoder 3 2000 2000 1000 1000 8 tte1.j2k [64 64] [6] [0 0] [0] [256 256] */
    if (argc >= 9) {
        num_comps = (OPJ_UINT32)atoi(argv[1]);
        image_width = atoi(argv[2]);
        image_height = atoi(argv[3]);
        tile_width = atoi(argv[4]);
        tile_height = atoi(argv[5]);
        comp_prec = atoi(argv[6]);
        irreversible = atoi(argv[7]);
        output_file = argv[8];
        if (argc >= 11) {
            quality_loss = 0;
            cblockw_init = atoi(argv[9]);
            cblockh_init = atoi(argv[10]);
        }
        if (argc >= 12) {
            numresolution = atoi(argv[11]);
        }
        if (argc >= 14) {
            offsetx = (OPJ_UINT32)atoi(argv[12]);
            offsety = (OPJ_UINT32)atoi(argv[13]);
        }
        if (argc >= 15) {
            is_rand = atoi(argv[14]);
        }
        for (i = 15; i + 1 < (OPJ_UINT32)argc &&
                l_param.res_spec < OPJ_J2K_MAXRLVLS; i += 2) {
            l_param.csty |= 0x01;
            l_param.prcw_init[l_param.res_spec] = atoi(argv[i]);
            l_param.prch_init[l_param.res_spec] = atoi(argv[i + 1]);
            l_param.res_spec ++;
        }
    } else {
        num_comps = 3;
        image_width = 2000;
        image_height = 2000;
        tile_width = 1000;
        tile_height = 1000;
        comp_prec = 8;
        irreversible = 1;
        output_file = "test.j2k";
    }
    if (num_comps > NUM_COMPS_MAX) {
        return 1;
    }
    l_nb_tiles_width = (offsetx + (OPJ_UINT32)image_width +
                        (OPJ_UINT32)tile_width - 1) / (OPJ_UINT32)tile_width;
    l_nb_tiles_height = (offsety + (OPJ_UINT32)image_height +
                         (OPJ_UINT32)tile_height - 1) / (OPJ_UINT32)tile_height;
    l_nb_tiles = l_nb_tiles_width * l_nb_tiles_height;
    l_data_size = (OPJ_UINT32)tile_width * (OPJ_UINT32)tile_height *
                  (OPJ_UINT32)num_comps * (OPJ_UINT32)(comp_prec / 8);

    l_data = (OPJ_BYTE*) malloc(l_data_size * sizeof(OPJ_BYTE));
    if (l_data == NULL) {
        return 1;
    }
    fprintf(stdout,
            "Encoding random values -> keep in mind that this is very hard to compress\n");
    for (i = 0; i < l_data_size; ++i) {
        if (is_rand) {
            l_data[i] = (OPJ_BYTE)rand();
        } else {
            l_data[i] = (OPJ_BYTE)i;
        }
    }

    /** you may here add custom encoding parameters */
    /* rate specifications */
    /** number of quality layers in the stream */
    if (quality_loss) {
        l_param.tcp_numlayers = 1;
        l_param.cp_fixed_quality = 1;
        l_param.tcp_distoratio[0] = 20;
    }
    /* is using others way of calculation */
    /* l_param.cp_disto_alloc = 1 or l_param.cp_fixed_alloc = 1 */
    /* l_param.tcp_rates[0] = ... */


    /* tile definitions parameters */
    /* position of the tile grid aligned with the image */
    l_param.cp_tx0 = 0;
    l_param.cp_ty0 = 0;
    /* tile size, we are using tile based encoding */
    l_param.tile_size_on = OPJ_TRUE;
    l_param.cp_tdx = tile_width;
    l_param.cp_tdy = tile_height;

    /* code block size */
    l_param.cblockw_init = cblockw_init;
    l_param.cblockh_init = cblockh_init;

    /* use irreversible encoding ?*/
    l_param.irreversible = irreversible;

    /* do not bother with mct, the rsiz is set when calling opj_set_MCT*/
    /*l_param.cp_rsiz = OPJ_STD_RSIZ;*/

    /* no cinema */
    /*l_param.cp_cinema = 0;*/

    /* no not bother using SOP or EPH markers, do not use custom size precinct */
    /* number of precincts to specify */
    /* l_param.csty = 0;*/
    /* l_param.res_spec = ... */
    /* l_param.prch_init[i] = .. */
    /* l_param.prcw_init[i] = .. */


    /* do not use progression order changes */
    /*l_param.numpocs = 0;*/
    /* l_param.POC[i].... */

    /* do not restrain the size for a component.*/
    /* l_param.max_comp_size = 0; */

    /** block encoding style for each component, do not use at the moment */
    /** J2K_CCP_CBLKSTY_TERMALL, J2K_CCP_CBLKSTY_LAZY, J2K_CCP_CBLKSTY_VSC, J2K_CCP_CBLKSTY_SEGSYM, J2K_CCP_CBLKSTY_RESET */
    /* l_param.mode = 0;*/

    /** number of resolutions */
    l_param.numresolution = numresolution;

    /** progression order to use*/
    /** OPJ_LRCP, OPJ_RLCP, OPJ_RPCL, PCRL, CPRL */
    l_param.prog_order = OPJ_LRCP;

    /** no "region" of interest, more precisally component */
    /* l_param.roi_compno = -1; */
    /* l_param.roi_shift = 0; */

    /* we are not using multiple tile parts for a tile. */
    /* l_param.tp_on = 0; */
    /* l_param.tp_flag = 0; */

    /* if we are using mct */
#ifdef USING_MCT
    opj_set_MCT(&l_param, l_mct, l_offsets, NUM_COMPS);
#endif


    /* image definition */
    l_current_param_ptr = l_params;
    for (i = 0; i < num_comps; ++i) {
        /* do not bother bpp useless */
        /*l_current_param_ptr->bpp = COMP_PREC;*/
        l_current_param_ptr->dx = 1;
        l_current_param_ptr->dy = 1;

        l_current_param_ptr->h = (OPJ_UINT32)image_height;
        l_current_param_ptr->w = (OPJ_UINT32)image_width;

        l_current_param_ptr->sgnd = 0;
        l_current_param_ptr->prec = (OPJ_UINT32)comp_prec;

        l_current_param_ptr->x0 = offsetx;
        l_current_param_ptr->y0 = offsety;

        ++l_current_param_ptr;
    }

    /* should we do j2k or jp2 ?*/
    len = strlen(output_file);
    if (strcmp(output_file + len - 4, ".jp2") == 0) {
        l_codec = opj_create_compress(OPJ_CODEC_JP2);
    } else {
        l_codec = opj_create_compress(OPJ_CODEC_J2K);
    }
    if (!l_codec) {
        free(l_data);
        return 1;
    }

    /* catch events using our callbacks and give a local context */
    opj_set_info_handler(l_codec, info_callback, 00);
    opj_set_warning_handler(l_codec, warning_callback, 00);
    opj_set_error_handler(l_codec, error_callback, 00);

    l_image = opj_image_tile_create(num_comps, l_params, OPJ_CLRSPC_SRGB);
    if (! l_image) {
        free(l_data);
        opj_destroy_codec(l_codec);
        return 1;
    }

    l_image->x0 = offsetx;
    l_image->y0 = offsety;
    l_image->x1 = offsetx + (OPJ_UINT32)image_width;
    l_image->y1 = offsety + (OPJ_UINT32)image_height;
    l_image->color_space = OPJ_CLRSPC_SRGB;

    if (! opj_setup_encoder(l_codec, &l_param, l_image)) {
        fprintf(stderr, "ERROR -> test_tile_encoder: failed to setup the codec!\n");
        opj_destroy_codec(l_codec);
        opj_image_destroy(l_image);
        free(l_data);
        return 1;
    }

    l_stream = opj_stream_create_default_file_stream(output_file, OPJ_FALSE);
    if (! l_stream) {
        fprintf(stderr,
                "ERROR -> test_tile_encoder: failed to create the stream from the output file %s !\n",
                output_file);
        opj_destroy_codec(l_codec);
        opj_image_destroy(l_image);
        free(l_data);
        return 1;
    }

    if (! opj_start_compress(l_codec, l_image, l_stream)) {
        fprintf(stderr, "ERROR -> test_tile_encoder: failed to start compress!\n");
        opj_stream_destroy(l_stream);
        opj_destroy_codec(l_codec);
        opj_image_destroy(l_image);
        free(l_data);
        return 1;
    }

    for (i = 0; i < l_nb_tiles; ++i) {
        OPJ_UINT32 tile_y = i / l_nb_tiles_width;
        OPJ_UINT32 tile_x = i % l_nb_tiles_width;
        OPJ_UINT32 tile_x0 = opj_uint_max(l_image->x0, tile_x * (OPJ_UINT32)tile_width);
        OPJ_UINT32 tile_y0 = opj_uint_max(l_image->y0,
                                          tile_y * (OPJ_UINT32)tile_height);
        OPJ_UINT32 tile_x1 = opj_uint_min(l_image->x1,
                                          (tile_x + 1) * (OPJ_UINT32)tile_width);
        OPJ_UINT32 tile_y1 = opj_uint_min(l_image->y1,
                                          (tile_y + 1) * (OPJ_UINT32)tile_height);
        OPJ_UINT32 tilesize = (tile_x1 - tile_x0) * (tile_y1 - tile_y0) *
                              (OPJ_UINT32)num_comps * (OPJ_UINT32)(comp_prec / 8);
        if (! opj_write_tile(l_codec, i, l_data, tilesize, l_stream)) {
            fprintf(stderr, "ERROR -> test_tile_encoder: failed to write the tile %d!\n",
                    i);
            opj_stream_destroy(l_stream);
            opj_destroy_codec(l_codec);
            opj_image_destroy(l_image);
            free(l_data);
            return 1;
        }
    }

    if (! opj_end_compress(l_codec, l_stream)) {
        fprintf(stderr, "ERROR -> test_tile_encoder: failed to end compress!\n");
        opj_stream_destroy(l_stream);
        opj_destroy_codec(l_codec);
        opj_image_destroy(l_image);
        free(l_data);
        return 1;
    }

    opj_stream_destroy(l_stream);
    opj_destroy_codec(l_codec);
    opj_image_destroy(l_image);

    free(l_data);

    /* Print profiling*/
    /*PROFPRINT();*/

    return 0;
}