assimp/tools/assimp_cmd/WriteDump.cpp

/*
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Open Asset Import Library (assimp)
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*/

/** @file  WriteDump.cpp
 *  @brief Implementation of the 'assimp dump' utility
 */

#include "Main.h"
#include "PostProcessing/ProcessHelper.h"
#include "Common/assbin_chunks.h"
#include <assimp/DefaultIOSystem.h>
#include "AssetLib/Assbin/AssbinFileWriter.h"
#include "AssetLib/Assxml/AssxmlFileWriter.h"

#include <memory>

const char *AICMD_MSG_DUMP_HELP =
        "assimp dump <model> [<out>] [-b] [-s] [-z] [common parameters]\n"
        "\t -b Binary output \n"
        "\t -s Shortened  \n"
        "\t -z Compressed  \n"
        "\t[See the assimp_cmd docs for a full list of all common parameters]  \n"
        "\t -cfast    Fast post processing preset, runs just a few important steps \n"
        "\t -cdefault Default post processing: runs all recommended steps\n"
        "\t -cfull    Fires almost all post processing steps \n";

FILE *out = nullptr;
bool shortened = false;

// -----------------------------------------------------------------------------------
int Assimp_Dump(const char *const *params, unsigned int num) {
    const char *fail = "assimp dump: Invalid number of arguments. "
                       "See \'assimp dump --help\'\r\n";

    // --help
    if (!strcmp(params[0], "-h") || !strcmp(params[0], "--help") || !strcmp(params[0], "-?")) {
        printf("%s", AICMD_MSG_DUMP_HELP);
        return AssimpCmdError::Success;
    }

    // assimp dump in out [options]
    if (num < 1) {
        printf("%s", fail);
        return AssimpCmdError::InvalidNumberOfArguments;
    }

    std::string in = std::string(params[0]);
    std::string cur_out = (num > 1 ? std::string(params[1]) : std::string("-"));

    // store full command line
    std::string cmd;
    for (unsigned int i = (cur_out[0] == '-' ? 1 : 2); i < num; ++i) {
        if (!params[i]) continue;
        cmd.append(params[i]);
        cmd.append(" ");
    }

    // get import flags
    ImportData import;
    ProcessStandardArguments(import, params + 1, num - 1);

    bool binary = false, cur_shortened = false, compressed = false;

    // process other flags
    for (unsigned int i = 1; i < num; ++i) {
        if (!params[i]) {
            continue;
        }
        if (!strcmp(params[i], "-b") || !strcmp(params[i], "--binary")) {
            binary = true;
        } else if (!strcmp(params[i], "-s") || !strcmp(params[i], "--short")) {
            cur_shortened = true;
        } else if (!strcmp(params[i], "-z") || !strcmp(params[i], "--compressed")) {
            compressed = true;
        }
#if 0
		else if (i > 2 || params[i][0] == '-') {
			::printf("Unknown parameter: %s\n",params[i]);
			return 10;
		}
#endif
    }

    if (cur_out[0] == '-') {
        // take file name from input file
        std::string::size_type pos = in.find_last_of('.');
        if (pos == std::string::npos) {
            pos = in.length();
        }

        cur_out = in.substr(0, pos);
        cur_out.append((binary ? ".assbin" : ".assxml"));
        if (cur_shortened && binary) {
            cur_out.append(".regress");
        }
    }

    // import the main model
    const aiScene *scene = ImportModel(import, in);
    if (nullptr == scene) {
        printf("assimp dump: Unable to load input file %s\n", in.c_str());
        return AssimpCmdError::FailedToLoadInputFile;
    }

    try {
        // Dump the main model, using the appropriate method.
        std::unique_ptr<IOSystem> pIOSystem(new DefaultIOSystem());
        if (binary) {
            DumpSceneToAssbin(cur_out.c_str(), cmd.c_str(), pIOSystem.get(),
                    scene, shortened, compressed);
        } else {
            DumpSceneToAssxml(cur_out.c_str(), cmd.c_str(), pIOSystem.get(),
                    scene, shortened);
        }
    } catch (const std::exception &e) {
        printf("%s", ("assimp dump: " + std::string(e.what())).c_str());
        return AssimpCmdError::ExceptionWasRaised;
    } catch (...) {
        printf("assimp dump: An unknown exception occurred.\n");
        return AssimpCmdError::ExceptionWasRaised;
    }

    printf("assimp dump: Wrote output dump %s\n", cur_out.c_str());

    return AssimpCmdError::Success;
}