/*************************************************************************/ /* pvrtc_compress.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "pvrtc_compress.h" #include "core/io/resource_loader.h" #include "core/io/resource_saver.h" #include "core/os/dir_access.h" #include "core/os/file_access.h" #include "core/os/os.h" #include "editor_settings.h" #include "scene/resources/texture.h" static void (*_base_image_compress_pvrtc2_func)(Image *) = NULL; static void (*_base_image_compress_pvrtc4_func)(Image *) = NULL; static void _compress_image(Image::CompressMode p_mode, Image *p_image) { String ttpath = EditorSettings::get_singleton()->get("filesystem/import/pvrtc_texture_tool"); if (ttpath.strip_edges() == "" || !FileAccess::exists(ttpath)) { switch (p_mode) { case Image::COMPRESS_PVRTC2: if (_base_image_compress_pvrtc2_func) _base_image_compress_pvrtc2_func(p_image); else if (_base_image_compress_pvrtc4_func) _base_image_compress_pvrtc4_func(p_image); break; case Image::COMPRESS_PVRTC4: if (_base_image_compress_pvrtc4_func) _base_image_compress_pvrtc4_func(p_image); break; default: ERR_FAIL_MSG("Unsupported Image compress mode used in PVRTC module."); } return; } String tmppath = EditorSettings::get_singleton()->get_cache_dir(); String src_img = tmppath.plus_file("_tmp_src_img.png"); String dst_img = tmppath.plus_file("_tmp_dst_img.pvr"); List<String> args; args.push_back("-i"); args.push_back(src_img); args.push_back("-o"); args.push_back(dst_img); args.push_back("-f"); switch (p_mode) { case Image::COMPRESS_PVRTC2: args.push_back("PVRTC2"); break; case Image::COMPRESS_PVRTC4: args.push_back("PVRTC4"); break; case Image::COMPRESS_ETC: args.push_back("ETC"); break; default: ERR_FAIL_MSG("Unsupported Image compress mode used in PVRTC module."); } if (EditorSettings::get_singleton()->get("filesystem/import/pvrtc_fast_conversion").operator bool()) { args.push_back("-pvrtcfast"); } if (p_image->has_mipmaps()) { args.push_back("-m"); } // Save source PNG. Ref<ImageTexture> t = memnew(ImageTexture); t->create_from_image(Ref<Image>(p_image), 0); ResourceSaver::save(src_img, t); Error err = OS::get_singleton()->execute(ttpath, args, true); if (err != OK) { // Clean up generated files. DirAccess::remove_file_or_error(src_img); DirAccess::remove_file_or_error(dst_img); ERR_FAIL_MSG("Could not execute PVRTC tool: " + ttpath); } t = ResourceLoader::load(dst_img, "Texture"); if (t.is_null()) { // Clean up generated files. DirAccess::remove_file_or_error(src_img); DirAccess::remove_file_or_error(dst_img); ERR_FAIL_MSG("Can't load back converted image using PVRTC tool."); } p_image->copy_internals_from(t->get_data()); // Clean up generated files. DirAccess::remove_file_or_error(src_img); DirAccess::remove_file_or_error(dst_img); } static void _compress_pvrtc2(Image *p_image) { _compress_image(Image::COMPRESS_PVRTC2, p_image); } static void _compress_pvrtc4(Image *p_image) { _compress_image(Image::COMPRESS_PVRTC4, p_image); } void _pvrtc_register_compressors() { _base_image_compress_pvrtc2_func = Image::_image_compress_pvrtc2_func; _base_image_compress_pvrtc4_func = Image::_image_compress_pvrtc4_func; Image::_image_compress_pvrtc2_func = _compress_pvrtc2; Image::_image_compress_pvrtc4_func = _compress_pvrtc4; }