/*************************************************************************/ /* resource_saver_png.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 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 "resource_saver_png.h" #include "core/io/file_access.h" #include "core/io/image.h" #include "drivers/png/png_driver_common.h" #include "scene/resources/texture.h" Error ResourceSaverPNG::save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags) { Ref<ImageTexture> texture = p_resource; ERR_FAIL_COND_V_MSG(!texture.is_valid(), ERR_INVALID_PARAMETER, "Can't save invalid texture as PNG."); ERR_FAIL_COND_V_MSG(!texture->get_width(), ERR_INVALID_PARAMETER, "Can't save empty texture as PNG."); Ref<Image> img = texture->get_image(); Error err = save_image(p_path, img); return err; } Error ResourceSaverPNG::save_image(const String &p_path, const Ref<Image> &p_img) { Vector<uint8_t> buffer; Error err = PNGDriverCommon::image_to_png(p_img, buffer); ERR_FAIL_COND_V_MSG(err, err, "Can't convert image to PNG."); Ref<FileAccess> file = FileAccess::open(p_path, FileAccess::WRITE, &err); ERR_FAIL_COND_V_MSG(err, err, vformat("Can't save PNG at path: '%s'.", p_path)); const uint8_t *reader = buffer.ptr(); file->store_buffer(reader, buffer.size()); if (file->get_error() != OK && file->get_error() != ERR_FILE_EOF) { return ERR_CANT_CREATE; } return OK; } Vector<uint8_t> ResourceSaverPNG::save_image_to_buffer(const Ref<Image> &p_img) { Vector<uint8_t> buffer; Error err = PNGDriverCommon::image_to_png(p_img, buffer); ERR_FAIL_COND_V_MSG(err, Vector<uint8_t>(), "Can't convert image to PNG."); return buffer; } bool ResourceSaverPNG::recognize(const Ref<Resource> &p_resource) const { return (p_resource.is_valid() && p_resource->is_class("ImageTexture")); } void ResourceSaverPNG::get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const { if (Object::cast_to<ImageTexture>(*p_resource)) { p_extensions->push_back("png"); } } ResourceSaverPNG::ResourceSaverPNG() { Image::save_png_func = &save_image; Image::save_png_buffer_func = &save_image_to_buffer; }