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![Rémi Verschelde](/assets/img/avatar_default.png)
Which means that reduz' beloved style which we all became used to will now be changed automatically to remove the first empty line. This makes us lean closer to 1TBS (the one true brace style) instead of hybridating it with some Allman-inspired spacing. There's still the case of braces around single-statement blocks that needs to be addressed (but clang-format can't help with that, but clang-tidy may if we agree about it). Part of #33027.
173 lines
6.4 KiB
C++
173 lines
6.4 KiB
C++
/*************************************************************************/
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/* image_loader_webp.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 "image_loader_webp.h"
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#include "core/io/marshalls.h"
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#include "core/os/os.h"
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#include "core/print_string.h"
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#include <stdlib.h>
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#include <webp/decode.h>
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#include <webp/encode.h>
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static Vector<uint8_t> _webp_lossy_pack(const Ref<Image> &p_image, float p_quality) {
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ERR_FAIL_COND_V(p_image.is_null() || p_image->empty(), Vector<uint8_t>());
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Ref<Image> img = p_image->duplicate();
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if (img->detect_alpha())
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img->convert(Image::FORMAT_RGBA8);
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else
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img->convert(Image::FORMAT_RGB8);
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Size2 s(img->get_width(), img->get_height());
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Vector<uint8_t> data = img->get_data();
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const uint8_t *r = data.ptr();
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uint8_t *dst_buff = nullptr;
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size_t dst_size = 0;
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if (img->get_format() == Image::FORMAT_RGB8) {
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dst_size = WebPEncodeRGB(r, s.width, s.height, 3 * s.width, CLAMP(p_quality * 100.0, 0, 100.0), &dst_buff);
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} else {
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dst_size = WebPEncodeRGBA(r, s.width, s.height, 4 * s.width, CLAMP(p_quality * 100.0, 0, 100.0), &dst_buff);
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}
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ERR_FAIL_COND_V(dst_size == 0, Vector<uint8_t>());
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Vector<uint8_t> dst;
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dst.resize(4 + dst_size);
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uint8_t *w = dst.ptrw();
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w[0] = 'W';
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w[1] = 'E';
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w[2] = 'B';
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w[3] = 'P';
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copymem(&w[4], dst_buff, dst_size);
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free(dst_buff);
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return dst;
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}
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static Ref<Image> _webp_lossy_unpack(const Vector<uint8_t> &p_buffer) {
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int size = p_buffer.size() - 4;
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ERR_FAIL_COND_V(size <= 0, Ref<Image>());
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const uint8_t *r = p_buffer.ptr();
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ERR_FAIL_COND_V(r[0] != 'W' || r[1] != 'E' || r[2] != 'B' || r[3] != 'P', Ref<Image>());
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WebPBitstreamFeatures features;
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if (WebPGetFeatures(&r[4], size, &features) != VP8_STATUS_OK) {
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ERR_FAIL_V_MSG(Ref<Image>(), "Error unpacking WEBP image.");
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}
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/*
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print_line("width: "+itos(features.width));
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print_line("height: "+itos(features.height));
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print_line("alpha: "+itos(features.has_alpha));
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*/
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Vector<uint8_t> dst_image;
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int datasize = features.width * features.height * (features.has_alpha ? 4 : 3);
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dst_image.resize(datasize);
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uint8_t *dst_w = dst_image.ptrw();
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bool errdec = false;
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if (features.has_alpha) {
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errdec = WebPDecodeRGBAInto(&r[4], size, dst_w, datasize, 4 * features.width) == nullptr;
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} else {
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errdec = WebPDecodeRGBInto(&r[4], size, dst_w, datasize, 3 * features.width) == nullptr;
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}
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ERR_FAIL_COND_V_MSG(errdec, Ref<Image>(), "Failed decoding WebP image.");
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Ref<Image> img = memnew(Image(features.width, features.height, 0, features.has_alpha ? Image::FORMAT_RGBA8 : Image::FORMAT_RGB8, dst_image));
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return img;
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}
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Error webp_load_image_from_buffer(Image *p_image, const uint8_t *p_buffer, int p_buffer_len) {
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ERR_FAIL_NULL_V(p_image, ERR_INVALID_PARAMETER);
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WebPBitstreamFeatures features;
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if (WebPGetFeatures(p_buffer, p_buffer_len, &features) != VP8_STATUS_OK) {
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ERR_FAIL_V(ERR_FILE_CORRUPT);
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}
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Vector<uint8_t> dst_image;
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int datasize = features.width * features.height * (features.has_alpha ? 4 : 3);
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dst_image.resize(datasize);
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uint8_t *dst_w = dst_image.ptrw();
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bool errdec = false;
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if (features.has_alpha) {
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errdec = WebPDecodeRGBAInto(p_buffer, p_buffer_len, dst_w, datasize, 4 * features.width) == nullptr;
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} else {
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errdec = WebPDecodeRGBInto(p_buffer, p_buffer_len, dst_w, datasize, 3 * features.width) == nullptr;
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}
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ERR_FAIL_COND_V_MSG(errdec, ERR_FILE_CORRUPT, "Failed decoding WebP image.");
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p_image->create(features.width, features.height, false, features.has_alpha ? Image::FORMAT_RGBA8 : Image::FORMAT_RGB8, dst_image);
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return OK;
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}
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static Ref<Image> _webp_mem_loader_func(const uint8_t *p_png, int p_size) {
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Ref<Image> img;
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img.instance();
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Error err = webp_load_image_from_buffer(img.ptr(), p_png, p_size);
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ERR_FAIL_COND_V(err, Ref<Image>());
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return img;
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}
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Error ImageLoaderWEBP::load_image(Ref<Image> p_image, FileAccess *f, bool p_force_linear, float p_scale) {
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Vector<uint8_t> src_image;
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int src_image_len = f->get_len();
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ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);
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src_image.resize(src_image_len);
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uint8_t *w = src_image.ptrw();
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f->get_buffer(&w[0], src_image_len);
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f->close();
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Error err = webp_load_image_from_buffer(p_image.ptr(), w, src_image_len);
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return err;
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}
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void ImageLoaderWEBP::get_recognized_extensions(List<String> *p_extensions) const {
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p_extensions->push_back("webp");
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}
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ImageLoaderWEBP::ImageLoaderWEBP() {
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Image::_webp_mem_loader_func = _webp_mem_loader_func;
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Image::lossy_packer = _webp_lossy_pack;
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Image::lossy_unpacker = _webp_lossy_unpack;
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}
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