141 lines
5.4 KiB
C++
141 lines
5.4 KiB
C++
/**************************************************************************/
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/* image_loader.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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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 "image_loader.h"
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#include "core/object/class_db.h"
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void ImageFormatLoader::_bind_methods() {
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BIND_BITFIELD_FLAG(FLAG_NONE);
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BIND_BITFIELD_FLAG(FLAG_FORCE_LINEAR);
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BIND_BITFIELD_FLAG(FLAG_CONVERT_COLORS);
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}
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bool ImageFormatLoader::recognize(const String &p_extension) const {
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List<String> extensions;
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get_recognized_extensions(&extensions);
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for (const String &E : extensions) {
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if (E.nocasecmp_to(p_extension) == 0) {
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return true;
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}
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}
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return false;
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}
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Error ImageFormatLoaderExtension::load_image(Ref<Image> p_image, Ref<FileAccess> p_fileaccess, BitField<ImageFormatLoader::LoaderFlags> p_flags, float p_scale) {
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Error err = ERR_UNAVAILABLE;
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GDVIRTUAL_CALL(_load_image, p_image, p_fileaccess, p_flags, p_scale, err);
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return err;
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}
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void ImageFormatLoaderExtension::get_recognized_extensions(List<String> *p_extension) const {
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PackedStringArray ext;
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if (GDVIRTUAL_CALL(_get_recognized_extensions, ext)) {
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for (int i = 0; i < ext.size(); i++) {
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p_extension->push_back(ext[i]);
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}
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}
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}
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void ImageFormatLoaderExtension::add_format_loader() {
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ImageLoader::add_image_format_loader(this);
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}
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void ImageFormatLoaderExtension::remove_format_loader() {
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ImageLoader::remove_image_format_loader(this);
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}
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void ImageFormatLoaderExtension::_bind_methods() {
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GDVIRTUAL_BIND(_get_recognized_extensions);
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GDVIRTUAL_BIND(_load_image, "image", "fileaccess", "flags", "scale");
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ClassDB::bind_method(D_METHOD("add_format_loader"), &ImageFormatLoaderExtension::add_format_loader);
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ClassDB::bind_method(D_METHOD("remove_format_loader"), &ImageFormatLoaderExtension::remove_format_loader);
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}
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Error ImageLoader::load_image(const String &p_file, Ref<Image> p_image, Ref<FileAccess> p_custom, BitField<ImageFormatLoader::LoaderFlags> p_flags, float p_scale) {
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ERR_FAIL_COND_V_MSG(p_image.is_null(), ERR_INVALID_PARAMETER, "Can't load an image: invalid Image object.");
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const String file = ResourceUID::ensure_path(p_file);
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Ref<FileAccess> f = p_custom;
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if (f.is_null()) {
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Error err;
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f = FileAccess::open(file, FileAccess::READ, &err);
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ERR_FAIL_COND_V_MSG(f.is_null(), err, vformat("Error opening file '%s'.", file));
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}
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String extension = file.get_extension();
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for (int i = 0; i < loader.size(); i++) {
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if (!loader[i]->recognize(extension)) {
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continue;
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}
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Error err = loader.write[i]->load_image(p_image, f, p_flags, p_scale);
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if (err != OK) {
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ERR_PRINT(vformat("Error loading image: '%s'.", file));
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}
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if (err != ERR_FILE_UNRECOGNIZED) {
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return err;
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}
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}
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return ERR_FILE_UNRECOGNIZED;
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}
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void ImageLoader::get_recognized_extensions(List<String> *p_extensions) {
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for (int i = 0; i < loader.size(); i++) {
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loader[i]->get_recognized_extensions(p_extensions);
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}
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}
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Ref<ImageFormatLoader> ImageLoader::recognize(const String &p_extension) {
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for (int i = 0; i < loader.size(); i++) {
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if (loader[i]->recognize(p_extension)) {
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return loader[i];
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}
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}
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return nullptr;
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}
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void ImageLoader::add_image_format_loader(Ref<ImageFormatLoader> p_loader) {
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loader.push_back(p_loader);
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}
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void ImageLoader::remove_image_format_loader(Ref<ImageFormatLoader> p_loader) {
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loader.erase(p_loader);
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}
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void ImageLoader::cleanup() {
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while (loader.size()) {
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remove_image_format_loader(loader[0]);
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}
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}
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