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/*************************************************************************/
/* 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/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();
}
return;
}
String tmppath = EditorSettings::get_singleton()->get_cache_dir();
List<String> args;
String src_img = tmppath.plus_file("_tmp_src_img.png");
String dst_img = tmppath.plus_file("_tmp_dst_img.pvr");
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();
}
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");
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);
ERR_EXPLAIN(TTR("Could not execute PVRTC tool:") + " " + ttpath);
ERR_FAIL_COND(err != OK);
t = ResourceLoader::load(dst_img, "Texture");
ERR_EXPLAIN(TTR("Can't load back converted image using PVRTC tool:") + " " + dst_img);
ERR_FAIL_COND(t.is_null());
p_image->copy_internals_from(t->get_data());
}
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;
}
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