Function test_compress_etc1s

example/example.cpp:1171–1220

}

static bool test_compress_etc1s()
{
    printf("test_compress_etc1s:\n");

    const uint32_t W = 256, H = 256;

    image img(W, H);
    for (uint32_t y = 0; y < H; y++)
        for (uint32_t x = 0; x < W; x++)
            img(x, y).set(((x ^ y) & 1) ? 255 : 0);

    basis_compressor_params params;

    // Set the format to ETC1S using the recommended unified method.
    params.set_format_mode_and_quality_effort(basist::basis_tex_format::cETC1S, 75, 3);

    // Input is sRGB
    params.set_srgb_options(true);

    // Provide the HDR source image.
    params.m_source_images.push_back(img);

    // Enable debug/status output and statistics.
    params.m_debug = true;
    params.m_status_output = true;
    params.m_compute_stats = true;

    // Write a .KTX2 file to disk.
    params.m_create_ktx2_file = true;
    params.m_write_output_basis_or_ktx2_files = true;
    params.m_out_filename = "test_etc1s.ktx2";

    // Create a job pool. A job pool MUST always be created, even if threading is disabled.
    // num_total_threads is the TOTAL thread count: 1 = calling thread only, 7 = calling thread + 6 extra.
    const uint32_t NUM_THREADS = 7;
    job_pool jp(NUM_THREADS);
    params.m_pJob_pool = &jp;
    params.m_multithreading = true;

    // Initialize and run the compressor.
    basis_compressor comp;
    if (!comp.init(params))
        return false;

    basisu::basis_compressor::error_code ec = comp.process();
    if (ec != basisu::basis_compressor::cECSuccess)
        return false;

    return true;
}

static bool test_compress_uastc_ldr_4x4()
{