145 lines
5.4 KiB
C++
145 lines
5.4 KiB
C++
/*************************************************************************/
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/* pvrtc_compress.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "pvrtc_compress.h"
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#include "core/io/resource_loader.h"
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#include "core/io/resource_saver.h"
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#include "core/os/dir_access.h"
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#include "core/os/file_access.h"
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#include "core/os/os.h"
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#include "editor_settings.h"
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#include "scene/resources/texture.h"
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static void (*_base_image_compress_pvrtc2_func)(Image *) = NULL;
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static void (*_base_image_compress_pvrtc4_func)(Image *) = NULL;
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static void _compress_image(Image::CompressMode p_mode, Image *p_image) {
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String ttpath = EditorSettings::get_singleton()->get("filesystem/import/pvrtc_texture_tool");
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if (ttpath.strip_edges() == "" || !FileAccess::exists(ttpath)) {
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switch (p_mode) {
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case Image::COMPRESS_PVRTC2:
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if (_base_image_compress_pvrtc2_func)
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_base_image_compress_pvrtc2_func(p_image);
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else if (_base_image_compress_pvrtc4_func)
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_base_image_compress_pvrtc4_func(p_image);
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break;
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case Image::COMPRESS_PVRTC4:
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if (_base_image_compress_pvrtc4_func)
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_base_image_compress_pvrtc4_func(p_image);
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break;
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default:
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ERR_FAIL_MSG("Unsupported Image compress mode used in PVRTC module.");
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}
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return;
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}
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String tmppath = EditorSettings::get_singleton()->get_cache_dir();
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String src_img = tmppath.plus_file("_tmp_src_img.png");
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String dst_img = tmppath.plus_file("_tmp_dst_img.pvr");
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List<String> args;
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args.push_back("-i");
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args.push_back(src_img);
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args.push_back("-o");
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args.push_back(dst_img);
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args.push_back("-f");
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switch (p_mode) {
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case Image::COMPRESS_PVRTC2:
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args.push_back("PVRTC2");
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break;
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case Image::COMPRESS_PVRTC4:
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args.push_back("PVRTC4");
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break;
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case Image::COMPRESS_ETC:
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args.push_back("ETC");
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break;
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default:
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ERR_FAIL_MSG("Unsupported Image compress mode used in PVRTC module.");
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}
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if (EditorSettings::get_singleton()->get("filesystem/import/pvrtc_fast_conversion").operator bool()) {
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args.push_back("-pvrtcfast");
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}
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if (p_image->has_mipmaps()) {
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args.push_back("-m");
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}
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// Save source PNG.
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Ref<ImageTexture> t = memnew(ImageTexture);
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t->create_from_image(Ref<Image>(p_image), 0);
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ResourceSaver::save(src_img, t);
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Error err = OS::get_singleton()->execute(ttpath, args, true);
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if (err != OK) {
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// Clean up generated files.
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DirAccess::remove_file_or_error(src_img);
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DirAccess::remove_file_or_error(dst_img);
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ERR_FAIL_MSG("Could not execute PVRTC tool: " + ttpath);
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}
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t = ResourceLoader::load(dst_img, "Texture");
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if (t.is_null()) {
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// Clean up generated files.
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DirAccess::remove_file_or_error(src_img);
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DirAccess::remove_file_or_error(dst_img);
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ERR_FAIL_MSG("Can't load back converted image using PVRTC tool.");
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}
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p_image->copy_internals_from(t->get_data());
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// Clean up generated files.
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DirAccess::remove_file_or_error(src_img);
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DirAccess::remove_file_or_error(dst_img);
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}
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static void _compress_pvrtc2(Image *p_image) {
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_compress_image(Image::COMPRESS_PVRTC2, p_image);
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}
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static void _compress_pvrtc4(Image *p_image) {
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_compress_image(Image::COMPRESS_PVRTC4, p_image);
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}
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void _pvrtc_register_compressors() {
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_base_image_compress_pvrtc2_func = Image::_image_compress_pvrtc2_func;
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_base_image_compress_pvrtc4_func = Image::_image_compress_pvrtc4_func;
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Image::_image_compress_pvrtc2_func = _compress_pvrtc2;
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Image::_image_compress_pvrtc4_func = _compress_pvrtc4;
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}
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