static bool convert_and_write_normal_texture(dds_texture& work_tex, convert_params& params, const crn_comp_params &comp_params, pixel_format dst_format, progress_params& progress_state, bool formats_differ, bool perceptual, convert_stats& stats)
{
if (formats_differ)
{
dxt_image::pack_params pack_params;
pack_params.m_perceptual = perceptual;
pack_params.m_compressor = comp_params.m_dxt_compressor_type;
pack_params.m_pProgress_callback = dxt_progress_callback_func;
pack_params.m_pProgress_callback_user_data_ptr = &progress_state;
pack_params.m_dxt1a_alpha_threshold = comp_params.m_dxt1a_alpha_threshold;
pack_params.m_quality = comp_params.m_dxt_quality;
pack_params.m_endpoint_caching = !comp_params.get_flag(cCRNCompFlagDisableEndpointCaching);
pack_params.m_grayscale_sampling = comp_params.get_flag(cCRNCompFlagGrayscaleSampling);
if ((!comp_params.get_flag(cCRNCompFlagUseBothBlockTypes)) && (!comp_params.get_flag(cCRNCompFlagDXT1AForTransparency)))
pack_params.m_use_both_block_types = false;
pack_params.m_num_helper_threads = comp_params.m_num_helper_threads;
pack_params.m_use_transparent_indices_for_black = comp_params.get_flag(cCRNCompFlagUseTransparentIndicesForBlack);
console::info(L"Converting texture format from %s to %s", pixel_format_helpers::get_pixel_format_string(work_tex.get_format()), pixel_format_helpers::get_pixel_format_string(dst_format));
timer tm;
tm.start();
bool status = work_tex.convert(dst_format, pack_params);
double t = tm.get_elapsed_secs();
console::info(L"");
if (!status)
{
if (progress_state.m_canceled)
{
params.m_canceled = true;
return false;
}
else
{
return convert_error(params, L"Failed converting texture to output format!");
}
}
console::info(L"Texture format conversion took %3.3fs", t);
}
if (params.m_write_mipmaps_to_multiple_files)
{
for (uint f = 0; f < work_tex.get_num_faces(); f++)
{
for (uint l = 0; l < work_tex.get_num_levels(); l++)
{
dynamic_wstring filename(params.m_dst_filename.get_ptr());
dynamic_wstring drv, dir, fn, ext;
if (!split_path(params.m_dst_filename.get_ptr(), &drv, &dir, &fn, &ext))
return false;
fn += dynamic_wstring(cVarArg, L"_face%u_mip%u", f, l).get_ptr();
filename = drv + dir + fn + ext;
mip_level *pLevel = work_tex.get_level(f, l);
face_vec face(1);
face[0].push_back(crnlib_new<mip_level>(*pLevel));
dds_texture new_tex;
new_tex.assign(face);
console::info(L"Writing texture face %u mip level %u to file %s", f, l, filename.get_ptr());
if (!new_tex.write_to_file(filename.get_ptr(), params.m_dst_file_type, NULL, NULL, NULL))
return convert_error(params, L"Failed writing output file!");
}
}
}
else
{
console::message(L"Writing texture to file: \"%s\"", params.m_dst_filename.get_ptr());
if (!work_tex.write_to_file(params.m_dst_filename.get_ptr(), params.m_dst_file_type, NULL, NULL, NULL))
return convert_error(params, L"Failed writing output file!");
if (!params.m_no_stats)
{
if (!stats.init(params.m_pInput_texture->get_source_filename().get_ptr(), params.m_dst_filename.get_ptr(), *params.m_pIntermediate_texture, params.m_dst_file_type, params.m_lzma_stats))
{
console::warning(L"Unable to compute output statistics for file: %s", params.m_pInput_texture->get_source_filename().get_ptr());
}
}
}
return true;
}
static pixel_format choose_pixel_format(convert_params& params, const crn_comp_params &comp_params, const dds_texture& src_tex, texture_type tex_type)
{
if (params.m_use_source_format)
return src_tex.get_format();
const bool is_normal_map = (tex_type == cTextureTypeNormalMap);
if (params.m_dst_file_type == texture_file_types::cFormatCRN)
{
if (is_normal_map)
{
switch (src_tex.get_format())
{
case PIXEL_FMT_DXN:
case PIXEL_FMT_3DC:
case PIXEL_FMT_DXT5_xGBR:
case PIXEL_FMT_DXT5_AGBR:
case PIXEL_FMT_DXT5_xGxR:
return src_tex.get_format();
default:
return PIXEL_FMT_DXT5_AGBR;
}
}
}
else if (params.m_dst_file_type == texture_file_types::cFormatDDS)
{
if (src_tex.get_source_file_type() != texture_file_types::cFormatCRN)
{
if (is_normal_map)
{
switch (src_tex.get_format())
{
case PIXEL_FMT_DXN:
case PIXEL_FMT_3DC:
case PIXEL_FMT_DXT5_xGBR:
case PIXEL_FMT_DXT5_AGBR:
case PIXEL_FMT_DXT5_xGxR:
return src_tex.get_format();
default:
return PIXEL_FMT_DXT5_AGBR;
}
}
else if (pixel_format_helpers::is_grayscale(src_tex.get_format()))
{
if (pixel_format_helpers::has_alpha(src_tex.get_format()))
return comp_params.get_flag(cCRNCompFlagDXT1AForTransparency) ? PIXEL_FMT_DXT1A : PIXEL_FMT_DXT5;
else
return PIXEL_FMT_DXT1;
}
else if (pixel_format_helpers::has_alpha(src_tex.get_format()))
return comp_params.get_flag(cCRNCompFlagDXT1AForTransparency) ? PIXEL_FMT_DXT1A : PIXEL_FMT_DXT5;
else
return PIXEL_FMT_DXT1;
}
}
else
{
// A regular image format.
if (pixel_format_helpers::is_grayscale(src_tex.get_format()))
{
if (pixel_format_helpers::has_alpha(src_tex.get_format()))
return PIXEL_FMT_A8L8;
else
return PIXEL_FMT_L8;
}
else if (pixel_format_helpers::has_alpha(src_tex.get_format()))
return PIXEL_FMT_A8R8G8B8;
else
return PIXEL_FMT_R8G8B8;
}
return src_tex.get_format();
}