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/*************************************************************************/
/* resource_saver_png.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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/image.h"
#include "core/os/file_access.h"
#include "drivers/png/png_driver_common.h"
#include "scene/resources/texture.h"
Error ResourceSaverPNG::save(const String &p_path, const RES &p_resource, 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_data();
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.");
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) {
memdelete(file);
return ERR_CANT_CREATE;
}
file->close();
memdelete(file);
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 RES &p_resource) const {
return (p_resource.is_valid() && p_resource->is_class("ImageTexture"));
}
void ResourceSaverPNG::get_recognized_extensions(const RES &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;
};
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