Method init

encoder/basisu_comp.cpp:392–618

	}

	bool basis_compressor::init(const basis_compressor_params &params)
	{
		debug_printf("basis_compressor::init\n");
				
		if (!g_library_initialized)
		{
			error_printf("basis_compressor::init: basisu_encoder_init() MUST be called before using any encoder functionality!\n");
			return false;
		}

		if (!params.m_pJob_pool)
		{
			error_printf("basis_compressor::init: A non-null job_pool pointer must be specified\n");
			return false;
		}
				
		m_params = params;

		if ((m_params.m_compute_stats) && (!m_params.m_validate_output_data))
			m_params.m_validate_output_data = true;

		m_hdr_image_scale = 1.0f;
		m_ldr_to_hdr_upconversion_nit_multiplier = 1.0f;
		m_upconverted_any_ldr_images = false;

		m_total_slice_orig_texels = 0;
		m_basis_file_size = 0;
		m_basis_bits_per_texel = 0.0f;
		m_ktx2_file_size = 0;
		m_ktx2_bits_per_texel = 0.0f;

		check_for_hdr_inputs();

		if (m_params.m_hdr)
		{
			if ((m_params.m_debug) && (m_params.m_ktx2_and_basis_srgb_transfer_function) && (m_params.m_ktx2_and_basis_srgb_transfer_function.was_changed()))
			{
				debug_printf("Warning: m_ktx2_and_basis_srgb_transfer_function being forced to false in HDR mode (we always write linear KTX2/.basis files in HDR mode)\n");
			}

			// Always slam m_ktx2_and_basis_srgb_transfer_function on HDR inputs. We always write linear to KTX2 and .basis for HDR outputs.
			m_params.m_ktx2_and_basis_srgb_transfer_function = false;
		}
		
		if (m_params.m_debug)
		{
			debug_printf("\nbasis_compressor::init:\n");

#define PRINT_BOOL_VALUE(v) fmt_debug_printf("{}: {} {}\n", BASISU_STRINGIZE2(v), static_cast<bool>(m_params.v), m_params.v.was_changed());
#define PRINT_INT_VALUE(v) fmt_debug_printf("{}: {} {}\n", BASISU_STRINGIZE2(v), static_cast<int>(m_params.v), m_params.v.was_changed());
#define PRINT_UINT_VALUE(v) fmt_debug_printf("{}: {} {}\n", BASISU_STRINGIZE2(v), static_cast<uint32_t>(m_params.v), m_params.v.was_changed());
#define PRINT_FLOAT_VALUE(v) fmt_debug_printf("{}: {} {}\n", BASISU_STRINGIZE2(v), static_cast<float>(m_params.v), m_params.v.was_changed());
						
			fmt_debug_printf("Source LDR images: {}, HDR images: {}, filenames: {}, alpha filenames: {}, LDR mipmap images: {}, HDR mipmap images: {}\n",
				(uint64_t)m_params.m_source_images.size(), (uint64_t)m_params.m_source_images_hdr.size(),
				(uint64_t)m_params.m_source_filenames.size(), (uint64_t)m_params.m_source_alpha_filenames.size(),
				(uint64_t)m_params.m_source_mipmap_images.size(), (uint64_t)m_params.m_source_mipmap_images_hdr.size());