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noahbackus
2025-09-16 20:46:46 -04:00
commit 9d30169a8d
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#!/usr/bin/env python
from misc.utility.scons_hints import *
Import("env")
Import("env_modules")
env_webp = env_modules.Clone()
# Thirdparty source files
thirdparty_obj = []
if env["builtin_libwebp"]:
thirdparty_dir = "#thirdparty/libwebp/"
thirdparty_sources = [
"sharpyuv/sharpyuv.c",
"sharpyuv/sharpyuv_cpu.c",
"sharpyuv/sharpyuv_csp.c",
"sharpyuv/sharpyuv_dsp.c",
"sharpyuv/sharpyuv_gamma.c",
"sharpyuv/sharpyuv_neon.c",
"sharpyuv/sharpyuv_sse2.c",
"src/dec/alpha_dec.c",
"src/dec/buffer_dec.c",
"src/dec/frame_dec.c",
"src/dec/idec_dec.c",
"src/dec/io_dec.c",
"src/dec/quant_dec.c",
"src/dec/tree_dec.c",
"src/dec/vp8_dec.c",
"src/dec/vp8l_dec.c",
"src/dec/webp_dec.c",
"src/demux/anim_decode.c",
"src/demux/demux.c",
"src/dsp/alpha_processing.c",
"src/dsp/alpha_processing_mips_dsp_r2.c",
"src/dsp/alpha_processing_neon.c",
"src/dsp/alpha_processing_sse2.c",
"src/dsp/alpha_processing_sse41.c",
"src/dsp/cost.c",
"src/dsp/cost_mips32.c",
"src/dsp/cost_mips_dsp_r2.c",
"src/dsp/cost_neon.c",
"src/dsp/cost_sse2.c",
"src/dsp/cpu.c",
"src/dsp/dec.c",
"src/dsp/dec_clip_tables.c",
"src/dsp/dec_mips32.c",
"src/dsp/dec_mips_dsp_r2.c",
"src/dsp/dec_msa.c",
"src/dsp/dec_neon.c",
"src/dsp/dec_sse2.c",
"src/dsp/dec_sse41.c",
"src/dsp/enc.c",
"src/dsp/enc_mips32.c",
"src/dsp/enc_mips_dsp_r2.c",
"src/dsp/enc_msa.c",
"src/dsp/enc_neon.c",
"src/dsp/enc_sse2.c",
"src/dsp/enc_sse41.c",
"src/dsp/filters.c",
"src/dsp/filters_mips_dsp_r2.c",
"src/dsp/filters_msa.c",
"src/dsp/filters_neon.c",
"src/dsp/filters_sse2.c",
"src/dsp/lossless.c",
"src/dsp/lossless_enc.c",
"src/dsp/lossless_enc_mips32.c",
"src/dsp/lossless_enc_mips_dsp_r2.c",
"src/dsp/lossless_enc_msa.c",
"src/dsp/lossless_enc_neon.c",
"src/dsp/lossless_enc_sse2.c",
"src/dsp/lossless_enc_sse41.c",
"src/dsp/lossless_mips_dsp_r2.c",
"src/dsp/lossless_msa.c",
"src/dsp/lossless_neon.c",
"src/dsp/lossless_sse2.c",
"src/dsp/lossless_sse41.c",
"src/dsp/rescaler.c",
"src/dsp/rescaler_mips32.c",
"src/dsp/rescaler_mips_dsp_r2.c",
"src/dsp/rescaler_msa.c",
"src/dsp/rescaler_neon.c",
"src/dsp/rescaler_sse2.c",
"src/dsp/ssim.c",
"src/dsp/ssim_sse2.c",
"src/dsp/upsampling.c",
"src/dsp/upsampling_mips_dsp_r2.c",
"src/dsp/upsampling_msa.c",
"src/dsp/upsampling_neon.c",
"src/dsp/upsampling_sse2.c",
"src/dsp/upsampling_sse41.c",
"src/dsp/yuv.c",
"src/dsp/yuv_mips32.c",
"src/dsp/yuv_mips_dsp_r2.c",
"src/dsp/yuv_neon.c",
"src/dsp/yuv_sse2.c",
"src/dsp/yuv_sse41.c",
"src/enc/alpha_enc.c",
"src/enc/analysis_enc.c",
"src/enc/backward_references_cost_enc.c",
"src/enc/backward_references_enc.c",
"src/enc/config_enc.c",
"src/enc/cost_enc.c",
"src/enc/filter_enc.c",
"src/enc/frame_enc.c",
"src/enc/histogram_enc.c",
"src/enc/iterator_enc.c",
"src/enc/near_lossless_enc.c",
"src/enc/picture_csp_enc.c",
"src/enc/picture_enc.c",
"src/enc/picture_psnr_enc.c",
"src/enc/picture_rescale_enc.c",
"src/enc/picture_tools_enc.c",
"src/enc/predictor_enc.c",
"src/enc/quant_enc.c",
"src/enc/syntax_enc.c",
"src/enc/token_enc.c",
"src/enc/tree_enc.c",
"src/enc/vp8l_enc.c",
"src/enc/webp_enc.c",
"src/mux/anim_encode.c",
"src/mux/muxedit.c",
"src/mux/muxinternal.c",
"src/mux/muxread.c",
"src/utils/bit_reader_utils.c",
"src/utils/bit_writer_utils.c",
"src/utils/color_cache_utils.c",
"src/utils/filters_utils.c",
"src/utils/huffman_encode_utils.c",
"src/utils/huffman_utils.c",
"src/utils/palette.c",
"src/utils/quant_levels_dec_utils.c",
"src/utils/quant_levels_utils.c",
"src/utils/random_utils.c",
"src/utils/rescaler_utils.c",
"src/utils/thread_utils.c",
"src/utils/utils.c",
]
thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
env_webp.Prepend(CPPEXTPATH=[thirdparty_dir, thirdparty_dir + "src/"])
env_thirdparty = env_webp.Clone()
env_thirdparty.disable_warnings()
env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
env.modules_sources += thirdparty_obj
# Godot source files
module_obj = []
env_webp.add_source_files(module_obj, "*.cpp")
env.modules_sources += module_obj
# Needed to force rebuilding the module files when the thirdparty library is updated.
env.Depends(module_obj, thirdparty_obj)

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def can_build(env, platform):
return True
def configure(env):
pass

70
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/**************************************************************************/
/* image_loader_webp.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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_webp.h"
#include "webp_common.h"
#include <webp/decode.h>
#include <webp/encode.h>
static Ref<Image> _webp_mem_loader_func(const uint8_t *p_webp_data, int p_size) {
Ref<Image> img;
img.instantiate();
Error err = WebPCommon::webp_load_image_from_buffer(img.ptr(), p_webp_data, p_size);
ERR_FAIL_COND_V(err, Ref<Image>());
return img;
}
Error ImageLoaderWebP::load_image(Ref<Image> p_image, Ref<FileAccess> f, BitField<ImageFormatLoader::LoaderFlags> p_flags, float p_scale) {
Vector<uint8_t> src_image;
uint64_t src_image_len = f->get_length();
ERR_FAIL_COND_V(src_image_len == 0, ERR_FILE_CORRUPT);
src_image.resize(src_image_len);
uint8_t *w = src_image.ptrw();
f->get_buffer(&w[0], src_image_len);
Error err = WebPCommon::webp_load_image_from_buffer(p_image.ptr(), w, src_image_len);
return err;
}
void ImageLoaderWebP::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("webp");
}
ImageLoaderWebP::ImageLoaderWebP() {
Image::_webp_mem_loader_func = _webp_mem_loader_func;
Image::webp_lossy_packer = WebPCommon::_webp_lossy_pack;
Image::webp_lossless_packer = WebPCommon::_webp_lossless_pack;
Image::webp_unpacker = WebPCommon::_webp_unpack;
}

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/**************************************************************************/
/* image_loader_webp.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#pragma once
#include "core/io/image_loader.h"
class ImageLoaderWebP : public ImageFormatLoader {
public:
virtual Error load_image(Ref<Image> p_image, Ref<FileAccess> f, BitField<ImageFormatLoader::LoaderFlags> p_flags, float p_scale);
virtual void get_recognized_extensions(List<String> *p_extensions) const;
ImageLoaderWebP();
};

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/**************************************************************************/
/* register_types.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "register_types.h"
#include "image_loader_webp.h"
#include "resource_saver_webp.h"
static Ref<ImageLoaderWebP> image_loader_webp;
static Ref<ResourceSaverWebP> resource_saver_webp;
void initialize_webp_module(ModuleInitializationLevel p_level) {
if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
return;
}
image_loader_webp.instantiate();
ImageLoader::add_image_format_loader(image_loader_webp);
resource_saver_webp.instantiate();
ResourceSaver::add_resource_format_saver(resource_saver_webp);
}
void uninitialize_webp_module(ModuleInitializationLevel p_level) {
if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
return;
}
ImageLoader::remove_image_format_loader(image_loader_webp);
image_loader_webp.unref();
ResourceSaver::remove_resource_format_saver(resource_saver_webp);
resource_saver_webp.unref();
}

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/**************************************************************************/
/* register_types.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#pragma once
#include "modules/register_module_types.h"
void initialize_webp_module(ModuleInitializationLevel p_level);
void uninitialize_webp_module(ModuleInitializationLevel p_level);

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/**************************************************************************/
/* resource_saver_webp.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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_webp.h"
#include "webp_common.h"
#include "core/io/file_access.h"
#include "core/io/image.h"
#include "scene/resources/image_texture.h"
Error ResourceSaverWebP::save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags) {
Ref<ImageTexture> texture = p_resource;
ERR_FAIL_COND_V_MSG(texture.is_null(), ERR_INVALID_PARAMETER, "Can't save invalid texture as WebP.");
ERR_FAIL_COND_V_MSG(!texture->get_width(), ERR_INVALID_PARAMETER, "Can't save empty texture as WebP.");
Ref<Image> img = texture->get_image();
Error err = save_image(p_path, img);
return err;
}
Error ResourceSaverWebP::save_image(const String &p_path, const Ref<Image> &p_img, const bool p_lossy, const float p_quality) {
Vector<uint8_t> buffer = save_image_to_buffer(p_img, p_lossy, p_quality);
Error err;
Ref<FileAccess> file = FileAccess::open(p_path, FileAccess::WRITE, &err);
ERR_FAIL_COND_V_MSG(err, err, vformat("Can't save WebP 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) {
return ERR_CANT_CREATE;
}
return OK;
}
Vector<uint8_t> ResourceSaverWebP::save_image_to_buffer(const Ref<Image> &p_img, const bool p_lossy, const float p_quality) {
Vector<uint8_t> buffer;
if (p_lossy) {
buffer = WebPCommon::_webp_lossy_pack(p_img, p_quality);
} else {
buffer = WebPCommon::_webp_lossless_pack(p_img);
}
return buffer;
}
bool ResourceSaverWebP::recognize(const Ref<Resource> &p_resource) const {
return (p_resource.is_valid() && p_resource->is_class("ImageTexture"));
}
void ResourceSaverWebP::get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const {
if (Object::cast_to<ImageTexture>(*p_resource)) {
p_extensions->push_back("webp");
}
}
ResourceSaverWebP::ResourceSaverWebP() {
Image::save_webp_func = &save_image;
Image::save_webp_buffer_func = &save_image_to_buffer;
}

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/**************************************************************************/
/* resource_saver_webp.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#pragma once
#include "core/io/image.h"
#include "core/io/resource_saver.h"
class ResourceSaverWebP : public ResourceFormatSaver {
public:
static Error save_image(const String &p_path, const Ref<Image> &p_img, const bool p_lossy = false, const float p_quality = 0.75f);
static Vector<uint8_t> save_image_to_buffer(const Ref<Image> &p_img, const bool p_lossy = false, const float p_quality = 0.75f);
virtual Error save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags = 0) override;
virtual bool recognize(const Ref<Resource> &p_resource) const override;
virtual void get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const override;
ResourceSaverWebP();
};

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/**************************************************************************/
/* webp_common.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "webp_common.h"
#include "core/config/project_settings.h"
#include <webp/decode.h>
#include <webp/encode.h>
namespace WebPCommon {
Vector<uint8_t> _webp_lossy_pack(const Ref<Image> &p_image, float p_quality) {
ERR_FAIL_COND_V(p_image.is_null() || p_image->is_empty(), Vector<uint8_t>());
return _webp_packer(p_image, CLAMP(p_quality * 100.0f, 0.0f, 100.0f), false);
}
Vector<uint8_t> _webp_lossless_pack(const Ref<Image> &p_image) {
ERR_FAIL_COND_V(p_image.is_null() || p_image->is_empty(), Vector<uint8_t>());
float compression_factor = GLOBAL_GET("rendering/textures/webp_compression/lossless_compression_factor");
compression_factor = CLAMP(compression_factor, 0.0f, 100.0f);
return _webp_packer(p_image, compression_factor, true);
}
Vector<uint8_t> _webp_packer(const Ref<Image> &p_image, float p_quality, bool p_lossless) {
int compression_method = GLOBAL_GET("rendering/textures/webp_compression/compression_method");
compression_method = CLAMP(compression_method, 0, 6);
Ref<Image> img = p_image->duplicate();
if (img->is_compressed()) {
Error error = img->decompress();
ERR_FAIL_COND_V_MSG(error != OK, Vector<uint8_t>(), "Couldn't decompress image.");
}
if (img->detect_alpha() != Image::ALPHA_NONE) {
img->convert(Image::FORMAT_RGBA8);
} else {
img->convert(Image::FORMAT_RGB8);
}
Size2 s(img->get_width(), img->get_height());
Vector<uint8_t> data = img->get_data();
const uint8_t *r = data.ptr();
// we need to use the more complex API in order to access specific flags...
WebPConfig config;
WebPPicture pic;
if (!WebPConfigInit(&config) || !WebPPictureInit(&pic)) {
ERR_FAIL_V(Vector<uint8_t>());
}
WebPMemoryWriter wrt;
if (p_lossless) {
config.lossless = 1;
config.exact = 1;
}
config.method = compression_method;
config.quality = p_quality;
config.use_sharp_yuv = 1;
pic.use_argb = 1;
pic.width = s.width;
pic.height = s.height;
pic.writer = WebPMemoryWrite;
pic.custom_ptr = &wrt;
WebPMemoryWriterInit(&wrt);
bool success_import = false;
if (img->get_format() == Image::FORMAT_RGB8) {
success_import = WebPPictureImportRGB(&pic, r, 3 * s.width);
} else {
success_import = WebPPictureImportRGBA(&pic, r, 4 * s.width);
}
bool success_encode = false;
if (success_import) {
success_encode = WebPEncode(&config, &pic);
}
WebPPictureFree(&pic);
if (!success_encode) {
WebPMemoryWriterClear(&wrt);
ERR_FAIL_V_MSG(Vector<uint8_t>(), "WebP packing failed.");
}
// copy from wrt
Vector<uint8_t> dst;
dst.resize(wrt.size);
uint8_t *w = dst.ptrw();
memcpy(w, wrt.mem, wrt.size);
WebPMemoryWriterClear(&wrt);
return dst;
}
Ref<Image> _webp_unpack(const Vector<uint8_t> &p_buffer) {
int size = p_buffer.size();
ERR_FAIL_COND_V(size <= 0, Ref<Image>());
const uint8_t *r = p_buffer.ptr();
// A WebP file uses a RIFF header, which starts with "RIFF____WEBP".
ERR_FAIL_COND_V(r[0] != 'R' || r[1] != 'I' || r[2] != 'F' || r[3] != 'F' || r[8] != 'W' || r[9] != 'E' || r[10] != 'B' || r[11] != 'P', Ref<Image>());
WebPBitstreamFeatures features;
if (WebPGetFeatures(r, size, &features) != VP8_STATUS_OK) {
ERR_FAIL_V_MSG(Ref<Image>(), "Error unpacking WebP image.");
}
Vector<uint8_t> dst_image;
int datasize = features.width * features.height * (features.has_alpha ? 4 : 3);
dst_image.resize(datasize);
uint8_t *dst_w = dst_image.ptrw();
bool errdec = false;
if (features.has_alpha) {
errdec = WebPDecodeRGBAInto(r, size, dst_w, datasize, 4 * features.width) == nullptr;
} else {
errdec = WebPDecodeRGBInto(r, size, dst_w, datasize, 3 * features.width) == nullptr;
}
ERR_FAIL_COND_V_MSG(errdec, Ref<Image>(), "Failed decoding WebP image.");
Ref<Image> img = memnew(Image(features.width, features.height, false, features.has_alpha ? Image::FORMAT_RGBA8 : Image::FORMAT_RGB8, dst_image));
return img;
}
Error webp_load_image_from_buffer(Image *p_image, const uint8_t *p_buffer, int p_buffer_len) {
ERR_FAIL_NULL_V(p_image, ERR_INVALID_PARAMETER);
WebPBitstreamFeatures features;
if (WebPGetFeatures(p_buffer, p_buffer_len, &features) != VP8_STATUS_OK) {
ERR_FAIL_V(ERR_FILE_CORRUPT);
}
Vector<uint8_t> dst_image;
int datasize = features.width * features.height * (features.has_alpha ? 4 : 3);
dst_image.resize(datasize);
uint8_t *dst_w = dst_image.ptrw();
bool errdec = false;
if (features.has_alpha) {
errdec = WebPDecodeRGBAInto(p_buffer, p_buffer_len, dst_w, datasize, 4 * features.width) == nullptr;
} else {
errdec = WebPDecodeRGBInto(p_buffer, p_buffer_len, dst_w, datasize, 3 * features.width) == nullptr;
}
ERR_FAIL_COND_V_MSG(errdec, ERR_FILE_CORRUPT, "Failed decoding WebP image.");
p_image->set_data(features.width, features.height, false, features.has_alpha ? Image::FORMAT_RGBA8 : Image::FORMAT_RGB8, dst_image);
return OK;
}
} // namespace WebPCommon

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modules/webp/webp_common.h Normal file
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/**************************************************************************/
/* webp_common.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/**************************************************************************/
#pragma once
#include "core/io/image.h"
namespace WebPCommon {
// Given an image, pack this data into a WebP file.
Vector<uint8_t> _webp_lossy_pack(const Ref<Image> &p_image, float p_quality);
Vector<uint8_t> _webp_lossless_pack(const Ref<Image> &p_image);
// Helper function for those above.
Vector<uint8_t> _webp_packer(const Ref<Image> &p_image, float p_quality, bool p_lossless);
// Given a WebP file, unpack it into an image.
Ref<Image> _webp_unpack(const Vector<uint8_t> &p_buffer);
Error webp_load_image_from_buffer(Image *p_image, const uint8_t *p_buffer, int p_buffer_len);
} //namespace WebPCommon