a3cad44f44
Backported from da0457fa29.
This commit additionally exposes the method to scripting (4.0).
99 lines
4.1 KiB
C++
99 lines
4.1 KiB
C++
/*************************************************************************/
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/* resource_saver_png.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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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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 "resource_saver_png.h"
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#include "core/image.h"
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#include "core/os/file_access.h"
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#include "drivers/png/png_driver_common.h"
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#include "scene/resources/texture.h"
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Error ResourceSaverPNG::save(const String &p_path, const RES &p_resource, uint32_t p_flags) {
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Ref<ImageTexture> texture = p_resource;
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ERR_FAIL_COND_V_MSG(!texture.is_valid(), ERR_INVALID_PARAMETER, "Can't save invalid texture as PNG.");
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ERR_FAIL_COND_V_MSG(!texture->get_width(), ERR_INVALID_PARAMETER, "Can't save empty texture as PNG.");
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Ref<Image> img = texture->get_data();
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Error err = save_image(p_path, img);
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return err;
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};
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Error ResourceSaverPNG::save_image(const String &p_path, const Ref<Image> &p_img) {
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PoolVector<uint8_t> buffer;
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Error err = PNGDriverCommon::image_to_png(p_img, buffer);
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ERR_FAIL_COND_V_MSG(err, err, "Can't convert image to PNG.");
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FileAccess *file = FileAccess::open(p_path, FileAccess::WRITE, &err);
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ERR_FAIL_COND_V_MSG(err, err, vformat("Can't save PNG at path: '%s'.", p_path));
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PoolVector<uint8_t>::Read reader = buffer.read();
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file->store_buffer(reader.ptr(), buffer.size());
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if (file->get_error() != OK && file->get_error() != ERR_FILE_EOF) {
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memdelete(file);
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return ERR_CANT_CREATE;
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}
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file->close();
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memdelete(file);
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return OK;
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}
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PoolVector<uint8_t> ResourceSaverPNG::save_image_to_buffer(const Ref<Image> &p_img) {
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PoolVector<uint8_t> buffer;
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Error err = PNGDriverCommon::image_to_png(p_img, buffer);
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ERR_FAIL_COND_V_MSG(err, PoolVector<uint8_t>(), "Can't convert image to PNG.");
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return buffer;
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}
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bool ResourceSaverPNG::recognize(const RES &p_resource) const {
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return (p_resource.is_valid() && p_resource->is_class("ImageTexture"));
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}
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void ResourceSaverPNG::get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const {
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if (Object::cast_to<ImageTexture>(*p_resource)) {
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p_extensions->push_back("png");
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}
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}
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ResourceSaverPNG::ResourceSaverPNG() {
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Image::save_png_func = &save_image;
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Image::save_png_buffer_func = &save_image_to_buffer;
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};
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