1/**************************************************************************/
2/* resource_saver_webp.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
18/* */
19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
25/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#include "resource_saver_webp.h"
32
33#include "webp_common.h"
34
35#include "core/io/file_access.h"
36#include "core/io/image.h"
37#include "scene/resources/image_texture.h"
38
39Error ResourceSaverWebP::save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags) {
40 Ref<ImageTexture> texture = p_resource;
41
42 ERR_FAIL_COND_V_MSG(!texture.is_valid(), ERR_INVALID_PARAMETER, "Can't save invalid texture as WebP.");
43 ERR_FAIL_COND_V_MSG(!texture->get_width(), ERR_INVALID_PARAMETER, "Can't save empty texture as WebP.");
44
45 Ref<Image> img = texture->get_image();
46
47 Error err = save_image(p_path, img);
48
49 return err;
50}
51
52Error ResourceSaverWebP::save_image(const String &p_path, const Ref<Image> &p_img, const bool p_lossy, const float p_quality) {
53 Vector<uint8_t> buffer = save_image_to_buffer(p_img, p_lossy, p_quality);
54 Error err;
55 Ref<FileAccess> file = FileAccess::open(p_path, FileAccess::WRITE, &err);
56 ERR_FAIL_COND_V_MSG(err, err, vformat("Can't save WebP at path: '%s'.", p_path));
57
58 const uint8_t *reader = buffer.ptr();
59
60 file->store_buffer(reader, buffer.size());
61 if (file->get_error() != OK && file->get_error() != ERR_FILE_EOF) {
62 return ERR_CANT_CREATE;
63 }
64
65 return OK;
66}
67
68Vector<uint8_t> ResourceSaverWebP::save_image_to_buffer(const Ref<Image> &p_img, const bool p_lossy, const float p_quality) {
69 Vector<uint8_t> buffer;
70 if (p_lossy) {
71 buffer = WebPCommon::_webp_lossy_pack(p_img, p_quality);
72 } else {
73 buffer = WebPCommon::_webp_lossless_pack(p_img);
74 }
75 return buffer;
76}
77
78bool ResourceSaverWebP::recognize(const Ref<Resource> &p_resource) const {
79 return (p_resource.is_valid() && p_resource->is_class("ImageTexture"));
80}
81
82void ResourceSaverWebP::get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const {
83 if (Object::cast_to<ImageTexture>(*p_resource)) {
84 p_extensions->push_back("webp");
85 }
86}
87
88ResourceSaverWebP::ResourceSaverWebP() {
89 Image::save_webp_func = &save_image;
90 Image::save_webp_buffer_func = &save_image_to_buffer;
91}
92