godot/core/io/image_loader.cpp
2018-04-30 09:38:18 +02:00

110 lines
3.8 KiB
C++

/*************************************************************************/
/* image_loader.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 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 "image_loader.h"
#include "print_string.h"
bool ImageFormatLoader::recognize(const String &p_extension) const {
List<String> extensions;
get_recognized_extensions(&extensions);
for (List<String>::Element *E = extensions.front(); E; E = E->next()) {
if (E->get().nocasecmp_to(p_extension) == 0)
return true;
}
return false;
}
Error ImageLoader::load_image(String p_file, Ref<Image> p_image, FileAccess *p_custom, bool p_force_linear, float p_scale) {
ERR_FAIL_COND_V(p_image.is_null(), ERR_INVALID_PARAMETER);
FileAccess *f = p_custom;
if (!f) {
Error err;
f = FileAccess::open(p_file, FileAccess::READ, &err);
if (!f) {
ERR_PRINTS("Error opening file: " + p_file);
return err;
}
}
String extension = p_file.get_extension();
for (int i = 0; i < loader_count; i++) {
if (!loader[i]->recognize(extension))
continue;
Error err = loader[i]->load_image(p_image, f, p_force_linear, p_scale);
if (err != ERR_FILE_UNRECOGNIZED) {
if (!p_custom)
memdelete(f);
return err;
}
}
if (!p_custom)
memdelete(f);
return ERR_FILE_UNRECOGNIZED;
}
void ImageLoader::get_recognized_extensions(List<String> *p_extensions) {
for (int i = 0; i < loader_count; i++) {
loader[i]->get_recognized_extensions(p_extensions);
}
}
bool ImageLoader::recognize(const String &p_extension) {
for (int i = 0; i < loader_count; i++) {
if (loader[i]->recognize(p_extension))
return true;
}
return false;
}
ImageFormatLoader *ImageLoader::loader[MAX_LOADERS];
int ImageLoader::loader_count = 0;
void ImageLoader::add_image_format_loader(ImageFormatLoader *p_loader) {
ERR_FAIL_COND(loader_count >= MAX_LOADERS);
loader[loader_count++] = p_loader;
}