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godot/core/io/image_resource_format.cpp
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2026-03-27 07:16:20 -04:00

101 lines
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/**************************************************************************/
/* image_resource_format.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "image_resource_format.h"
Ref<Resource> ResourceFormatLoaderImage::load(const String &p_path, const String &p_original_path, Error *r_error, bool p_use_sub_threads, float *r_progress, CacheMode p_cache_mode) {
Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ);
if (f.is_null()) {
if (r_error) {
*r_error = ERR_CANT_OPEN;
}
return Ref<Resource>();
}
uint8_t header[4] = { 0, 0, 0, 0 };
f->get_buffer(header, 4);
bool unrecognized = header[0] != 'G' || header[1] != 'D' || header[2] != 'I' || header[3] != 'M';
if (unrecognized) {
if (r_error) {
*r_error = ERR_FILE_UNRECOGNIZED;
}
ERR_FAIL_V(Ref<Resource>());
}
String extension = f->get_pascal_string();
int idx = -1;
for (int i = 0; i < ImageLoader::loader.size(); i++) {
if (ImageLoader::loader[i]->recognize(extension)) {
idx = i;
break;
}
}
if (idx == -1) {
if (r_error) {
*r_error = ERR_FILE_UNRECOGNIZED;
}
ERR_FAIL_V(Ref<Resource>());
}
Ref<Image> image;
image.instantiate();
Error err = ImageLoader::loader.write[idx]->load_image(image, f);
if (err != OK) {
if (r_error) {
*r_error = err;
}
return Ref<Resource>();
}
if (r_error) {
*r_error = OK;
}
return image;
}
void ResourceFormatLoaderImage::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("image");
}
bool ResourceFormatLoaderImage::handles_type(const String &p_type) const {
return p_type == "Image";
}
String ResourceFormatLoaderImage::get_resource_type(const String &p_path) const {
return p_path.get_extension().to_lower() == "image" ? "Image" : String();
}