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VTFLib

This is a Linux port of VTFLib.

Note

I never studied the source of the original VTFLib, never pulled changes from upstream, and never really maintained this library.

I only ported this library to Linux so I could look at the textures of Portal 2 out of curiosity.

Warning

This library is written in a pretty unsafe way and might have buffer overflows related to its file parsing logic (or other places). In fact there is a read buffer overlow in CVTFFile::Convert() (as I was told by someone using ASAN), but I don't understand the code well enough to figure out what is going on.

Only use this library with files that you really trust!

It is also not endian safe. Meaning it only supports little-endian platforms and using it on a big-endian platform will not work at all and lead to crashes.

I was notified about several problems:

  • Integer overflows in size calculations that then lead to write buffer overflows to undersized buffers.
  • Wrong buffer size assumptions leading to (only a few byte) reads after the actual end of buffers.
  • Calls of delete[] (and thus free()) of basically arbitrary memory in certain error conditions.

I tried to fix these issues, but make no guarantees of correctness and hope I didn't break any valid files.

Setup

git clone https://github.com/panzi/VTFLib.git
mkdir VTFLib/build
cd VTFLib/build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make -j`nproc`
sudo make install

You may use the cmake option -DUSE_LIBTXC_DXTN=ON/OFF to enable/disable support for writing S3TC compressed textures.

Missing Features

There are several features that aren't currently supported by the Linux version because they depend on a legacy Windows library (nvDXTLib). Such features are:

  • genratig mipmaps
  • resizing textures and generating thumbnails
  • generating normal maps/normal map conversion

However, all read-only features are supported.

Dependencies

  • libtxc_dxtn for writing S3TC compressed textures (optional).
Installation

From https://askubuntu.com/questions/1033209/libtxc-dxtn-libtxc-dxtni386-not-found-in-ppa-18-04-bionic#1047591

# required stuff
sudo apt-get install mesa-common-dev
# get source files
cd ~/
wget https://people.freedesktop.org/~cbrill/libtxc_dxtn/libtxc_dxtn-1.0.1.tar.gz
tar xvfz libtxc_dxtn-1.0.1.tar.gz
cd libtxc_dxtn-1.0.1
# start the job
./configure
make
sudo make install
# clean up sources (optional)
cd ..
rm -rf libtxc_dxtn-1.0.1 libtxc_dxtn-1.0.1.tar.gz

Documentation

Doxygen API Reference

Projects Using VTFLib for Linux

License

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

About

Linux port of Nem's VTFLib http://nemesis.thewavelength.net/index.php?p=40

Resources

Readme
Activity

Stars

49 stars

Watchers

2 watching

Forks

20 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
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VTFLib
This is a Linux port of VTFLib.
Note
I never studied the source of the original VTFLib, never pulled changes from
upstream, and never really maintained this library.
I only ported this library to Linux so I could look at the textures of Portal 2
out of curiosity.
Warning
This library is written in a pretty unsafe way and might have buffer overflows
related to its file parsing logic (or other places). In fact there is a read
buffer overlow in CVTFFile::Convert() (as I was told by someone using ASAN),
but I don't understand the code well enough to figure out what is going on.
Only use this library with files that you really trust!
It is also not endian safe. Meaning it only supports little-endian platforms
and using it on a big-endian platform will not work at all and lead to crashes.
I was notified about several problems:
  • Integer overflows in size calculations that then lead to write buffer overflows
to undersized buffers.
  • Wrong buffer size assumptions leading to (only a few byte) reads after the
actual end of buffers.
  • Calls of delete[] (and thus free()) of basically arbitrary memory in
certain error conditions.
I tried to fix these issues, but make no guarantees of correctness and hope I
didn't break any valid files.
Setup
git clone https://github.com/panzi/VTFLib.git
mkdir VTFLib/build
cd VTFLib/build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make -j`nproc`
sudo make install

You may use the cmake option -DUSE_LIBTXC_DXTN=ON/OFF to enable/disable
support for writing S3TC compressed textures.
Missing Features
There are several features that aren't currently supported by the Linux
version because they depend on a legacy Windows library
(nvDXTLib).
Such features are:
  • genratig mipmaps
  • resizing textures and generating thumbnails
  • generating normal maps/normal map conversion
However, all read-only features are supported.
Dependencies
  • libtxc_dxtn for writing S3TC
compressed textures (optional).
Installation
From https://askubuntu.com/questions/1033209/libtxc-dxtn-libtxc-dxtni386-not-found-in-ppa-18-04-bionic#1047591
# required stuff
sudo apt-get install mesa-common-dev
# get source files
cd ~/
wget https://people.freedesktop.org/~cbrill/libtxc_dxtn/libtxc_dxtn-1.0.1.tar.gz
tar xvfz libtxc_dxtn-1.0.1.tar.gz
cd libtxc_dxtn-1.0.1
# start the job
./configure
make
sudo make install
# clean up sources (optional)
cd ..
rm -rf libtxc_dxtn-1.0.1 libtxc_dxtn-1.0.1.tar.gz

Documentation
Doxygen API Reference
Projects Using VTFLib for Linux
License
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
About
Linux port of Nem's VTFLib http://nemesis.thewavelength.net/index.php?p=40
Resources
Readme
Activity
Stars
49 stars
Watchers
2 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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VTFLib
This is a Linux port of VTFLib.
Note
I never studied the source of the original VTFLib, never pulled changes from
upstream, and never really maintained this library.
I only ported this library to Linux so I could look at the textures of Portal 2
out of curiosity.
Warning
This library is written in a pretty unsafe way and might have buffer overflows
related to its file parsing logic (or other places). In fact there is a read
buffer overlow in CVTFFile::Convert() (as I was told by someone using ASAN),
but I don't understand the code well enough to figure out what is going on.
Only use this library with files that you really trust!
It is also not endian safe. Meaning it only supports little-endian platforms
and using it on a big-endian platform will not work at all and lead to crashes.
I was notified about several problems:
  • Integer overflows in size calculations that then lead to write buffer overflows
to undersized buffers.
  • Wrong buffer size assumptions leading to (only a few byte) reads after the
actual end of buffers.
  • Calls of delete[] (and thus free()) of basically arbitrary memory in
certain error conditions.
I tried to fix these issues, but make no guarantees of correctness and hope I
didn't break any valid files.
Setup
git clone https://github.com/panzi/VTFLib.git
mkdir VTFLib/build
cd VTFLib/build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make -j`nproc`
sudo make install

You may use the cmake option -DUSE_LIBTXC_DXTN=ON/OFF to enable/disable
support for writing S3TC compressed textures.
Missing Features
There are several features that aren't currently supported by the Linux
version because they depend on a legacy Windows library
(nvDXTLib).
Such features are:
  • genratig mipmaps
  • resizing textures and generating thumbnails
  • generating normal maps/normal map conversion
However, all read-only features are supported.
Dependencies
  • libtxc_dxtn for writing S3TC
compressed textures (optional).
Installation
From https://askubuntu.com/questions/1033209/libtxc-dxtn-libtxc-dxtni386-not-found-in-ppa-18-04-bionic#1047591
# required stuff
sudo apt-get install mesa-common-dev
# get source files
cd ~/
wget https://people.freedesktop.org/~cbrill/libtxc_dxtn/libtxc_dxtn-1.0.1.tar.gz
tar xvfz libtxc_dxtn-1.0.1.tar.gz
cd libtxc_dxtn-1.0.1
# start the job
./configure
make
sudo make install
# clean up sources (optional)
cd ..
rm -rf libtxc_dxtn-1.0.1 libtxc_dxtn-1.0.1.tar.gz

Documentation
Doxygen API Reference
Projects Using VTFLib for Linux
License
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
About
Linux port of Nem's VTFLib http://nemesis.thewavelength.net/index.php?p=40
Resources
Readme
Activity
Stars
49 stars
Watchers
2 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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VTFLib
This is a Linux port of VTFLib.
Note
I never studied the source of the original VTFLib, never pulled changes from
upstream, and never really maintained this library.
I only ported this library to Linux so I could look at the textures of Portal 2
out of curiosity.
Warning
This library is written in a pretty unsafe way and might have buffer overflows
related to its file parsing logic (or other places). In fact there is a read
buffer overlow in CVTFFile::Convert() (as I was told by someone using ASAN),
but I don't understand the code well enough to figure out what is going on.
Only use this library with files that you really trust!
It is also not endian safe. Meaning it only supports little-endian platforms
and using it on a big-endian platform will not work at all and lead to crashes.
I was notified about several problems:
  • Integer overflows in size calculations that then lead to write buffer overflows
to undersized buffers.
  • Wrong buffer size assumptions leading to (only a few byte) reads after the
actual end of buffers.
  • Calls of delete[] (and thus free()) of basically arbitrary memory in
certain error conditions.
I tried to fix these issues, but make no guarantees of correctness and hope I
didn't break any valid files.
Setup
git clone https://github.com/panzi/VTFLib.git
mkdir VTFLib/build
cd VTFLib/build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make -j`nproc`
sudo make install

You may use the cmake option -DUSE_LIBTXC_DXTN=ON/OFF to enable/disable
support for writing S3TC compressed textures.
Missing Features
There are several features that aren't currently supported by the Linux
version because they depend on a legacy Windows library
(nvDXTLib).
Such features are:
  • genratig mipmaps
  • resizing textures and generating thumbnails
  • generating normal maps/normal map conversion
However, all read-only features are supported.
Dependencies
  • libtxc_dxtn for writing S3TC
compressed textures (optional).
Installation
From https://askubuntu.com/questions/1033209/libtxc-dxtn-libtxc-dxtni386-not-found-in-ppa-18-04-bionic#1047591
# required stuff
sudo apt-get install mesa-common-dev
# get source files
cd ~/
wget https://people.freedesktop.org/~cbrill/libtxc_dxtn/libtxc_dxtn-1.0.1.tar.gz
tar xvfz libtxc_dxtn-1.0.1.tar.gz
cd libtxc_dxtn-1.0.1
# start the job
./configure
make
sudo make install
# clean up sources (optional)
cd ..
rm -rf libtxc_dxtn-1.0.1 libtxc_dxtn-1.0.1.tar.gz

Documentation
Doxygen API Reference
Projects Using VTFLib for Linux
License
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
About
Linux port of Nem's VTFLib http://nemesis.thewavelength.net/index.php?p=40
Resources
Readme
Activity
Stars
49 stars
Watchers
2 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
VTFLib
This is a Linux port of VTFLib.
Note
I never studied the source of the original VTFLib, never pulled changes from
upstream, and never really maintained this library.
I only ported this library to Linux so I could look at the textures of Portal 2
out of curiosity.
Warning
This library is written in a pretty unsafe way and might have buffer overflows
related to its file parsing logic (or other places). In fact there is a read
buffer overlow in CVTFFile::Convert() (as I was told by someone using ASAN),
but I don't understand the code well enough to figure out what is going on.
Only use this library with files that you really trust!
It is also not endian safe. Meaning it only supports little-endian platforms
and using it on a big-endian platform will not work at all and lead to crashes.
I was notified about several problems:
  • Integer overflows in size calculations that then lead to write buffer overflows
to undersized buffers.
  • Wrong buffer size assumptions leading to (only a few byte) reads after the
actual end of buffers.
  • Calls of delete[] (and thus free()) of basically arbitrary memory in
certain error conditions.
I tried to fix these issues, but make no guarantees of correctness and hope I
didn't break any valid files.
Setup
git clone https://github.com/panzi/VTFLib.git
mkdir VTFLib/build
cd VTFLib/build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make -j`nproc`
sudo make install

You may use the cmake option -DUSE_LIBTXC_DXTN=ON/OFF to enable/disable
support for writing S3TC compressed textures.
Missing Features
There are several features that aren't currently supported by the Linux
version because they depend on a legacy Windows library
(nvDXTLib).
Such features are:
  • genratig mipmaps
  • resizing textures and generating thumbnails
  • generating normal maps/normal map conversion
However, all read-only features are supported.
Dependencies
  • libtxc_dxtn for writing S3TC
compressed textures (optional).
Installation
From https://askubuntu.com/questions/1033209/libtxc-dxtn-libtxc-dxtni386-not-found-in-ppa-18-04-bionic#1047591
# required stuff
sudo apt-get install mesa-common-dev
# get source files
cd ~/
wget https://people.freedesktop.org/~cbrill/libtxc_dxtn/libtxc_dxtn-1.0.1.tar.gz
tar xvfz libtxc_dxtn-1.0.1.tar.gz
cd libtxc_dxtn-1.0.1
# start the job
./configure
make
sudo make install
# clean up sources (optional)
cd ..
rm -rf libtxc_dxtn-1.0.1 libtxc_dxtn-1.0.1.tar.gz

Documentation
Doxygen API Reference
Projects Using VTFLib for Linux
License
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
About
Linux port of Nem's VTFLib http://nemesis.thewavelength.net/index.php?p=40
Resources
Readme
Activity
Stars
49 stars
Watchers
2 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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VTFLib
This is a Linux port of VTFLib.
Note
I never studied the source of the original VTFLib, never pulled changes from
upstream, and never really maintained this library.
I only ported this library to Linux so I could look at the textures of Portal 2
out of curiosity.
Warning
This library is written in a pretty unsafe way and might have buffer overflows
related to its file parsing logic (or other places). In fact there is a read
buffer overlow in CVTFFile::Convert() (as I was told by someone using ASAN),
but I don't understand the code well enough to figure out what is going on.
Only use this library with files that you really trust!
It is also not endian safe. Meaning it only supports little-endian platforms
and using it on a big-endian platform will not work at all and lead to crashes.
I was notified about several problems:
  • Integer overflows in size calculations that then lead to write buffer overflows
to undersized buffers.
  • Wrong buffer size assumptions leading to (only a few byte) reads after the
actual end of buffers.
  • Calls of delete[] (and thus free()) of basically arbitrary memory in
certain error conditions.
I tried to fix these issues, but make no guarantees of correctness and hope I
didn't break any valid files.
Setup
git clone https://github.com/panzi/VTFLib.git
mkdir VTFLib/build
cd VTFLib/build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make -j`nproc`
sudo make install

You may use the cmake option -DUSE_LIBTXC_DXTN=ON/OFF to enable/disable
support for writing S3TC compressed textures.
Missing Features
There are several features that aren't currently supported by the Linux
version because they depend on a legacy Windows library
(nvDXTLib).
Such features are:
  • genratig mipmaps
  • resizing textures and generating thumbnails
  • generating normal maps/normal map conversion
However, all read-only features are supported.
Dependencies
  • libtxc_dxtn for writing S3TC
compressed textures (optional).
Installation
From https://askubuntu.com/questions/1033209/libtxc-dxtn-libtxc-dxtni386-not-found-in-ppa-18-04-bionic#1047591
# required stuff
sudo apt-get install mesa-common-dev
# get source files
cd ~/
wget https://people.freedesktop.org/~cbrill/libtxc_dxtn/libtxc_dxtn-1.0.1.tar.gz
tar xvfz libtxc_dxtn-1.0.1.tar.gz
cd libtxc_dxtn-1.0.1
# start the job
./configure
make
sudo make install
# clean up sources (optional)
cd ..
rm -rf libtxc_dxtn-1.0.1 libtxc_dxtn-1.0.1.tar.gz

Documentation
Doxygen API Reference
Projects Using VTFLib for Linux
License
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
About
Linux port of Nem's VTFLib http://nemesis.thewavelength.net/index.php?p=40
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2 watching
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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VTFLib
This is a Linux port of VTFLib.
Note
I never studied the source of the original VTFLib, never pulled changes from
upstream, and never really maintained this library.
I only ported this library to Linux so I could look at the textures of Portal 2
out of curiosity.
Warning
This library is written in a pretty unsafe way and might have buffer overflows
related to its file parsing logic (or other places). In fact there is a read
buffer overlow in CVTFFile::Convert() (as I was told by someone using ASAN),
but I don't understand the code well enough to figure out what is going on.
Only use this library with files that you really trust!
It is also not endian safe. Meaning it only supports little-endian platforms
and using it on a big-endian platform will not work at all and lead to crashes.
I was notified about several problems:
  • Integer overflows in size calculations that then lead to write buffer overflows
to undersized buffers.
  • Wrong buffer size assumptions leading to (only a few byte) reads after the
actual end of buffers.
  • Calls of delete[] (and thus free()) of basically arbitrary memory in
certain error conditions.
I tried to fix these issues, but make no guarantees of correctness and hope I
didn't break any valid files.
Setup
git clone https://github.com/panzi/VTFLib.git
mkdir VTFLib/build
cd VTFLib/build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make -j`nproc`
sudo make install

You may use the cmake option -DUSE_LIBTXC_DXTN=ON/OFF to enable/disable
support for writing S3TC compressed textures.
Missing Features
There are several features that aren't currently supported by the Linux
version because they depend on a legacy Windows library
(nvDXTLib).
Such features are:
  • genratig mipmaps
  • resizing textures and generating thumbnails
  • generating normal maps/normal map conversion
However, all read-only features are supported.
Dependencies
  • libtxc_dxtn for writing S3TC
compressed textures (optional).
Installation
From https://askubuntu.com/questions/1033209/libtxc-dxtn-libtxc-dxtni386-not-found-in-ppa-18-04-bionic#1047591
# required stuff
sudo apt-get install mesa-common-dev
# get source files
cd ~/
wget https://people.freedesktop.org/~cbrill/libtxc_dxtn/libtxc_dxtn-1.0.1.tar.gz
tar xvfz libtxc_dxtn-1.0.1.tar.gz
cd libtxc_dxtn-1.0.1
# start the job
./configure
make
sudo make install
# clean up sources (optional)
cd ..
rm -rf libtxc_dxtn-1.0.1 libtxc_dxtn-1.0.1.tar.gz

Documentation
Doxygen API Reference
Projects Using VTFLib for Linux
License
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
About
Linux port of Nem's VTFLib http://nemesis.thewavelength.net/index.php?p=40
Resources
Readme
Activity
Stars
49 stars
Watchers
2 watching
Forks
20 forks
Report repository
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Used by
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Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
VTFLib
This is a Linux port of VTFLib.
Note
I never studied the source of the original VTFLib, never pulled changes from
upstream, and never really maintained this library.
I only ported this library to Linux so I could look at the textures of Portal 2
out of curiosity.
Warning
This library is written in a pretty unsafe way and might have buffer overflows
related to its file parsing logic (or other places). In fact there is a read
buffer overlow in CVTFFile::Convert() (as I was told by someone using ASAN),
but I don't understand the code well enough to figure out what is going on.
Only use this library with files that you really trust!
It is also not endian safe. Meaning it only supports little-endian platforms
and using it on a big-endian platform will not work at all and lead to crashes.
I was notified about several problems:
  • Integer overflows in size calculations that then lead to write buffer overflows
to undersized buffers.
  • Wrong buffer size assumptions leading to (only a few byte) reads after the
actual end of buffers.
  • Calls of delete[] (and thus free()) of basically arbitrary memory in
certain error conditions.
I tried to fix these issues, but make no guarantees of correctness and hope I
didn't break any valid files.
Setup
git clone https://github.com/panzi/VTFLib.git
mkdir VTFLib/build
cd VTFLib/build
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr
make -j`nproc`
sudo make install

You may use the cmake option -DUSE_LIBTXC_DXTN=ON/OFF to enable/disable
support for writing S3TC compressed textures.
Missing Features
There are several features that aren't currently supported by the Linux
version because they depend on a legacy Windows library
(nvDXTLib).
Such features are:
  • genratig mipmaps
  • resizing textures and generating thumbnails
  • generating normal maps/normal map conversion
However, all read-only features are supported.
Dependencies
  • libtxc_dxtn for writing S3TC
compressed textures (optional).
Installation
From https://askubuntu.com/questions/1033209/libtxc-dxtn-libtxc-dxtni386-not-found-in-ppa-18-04-bionic#1047591
# required stuff
sudo apt-get install mesa-common-dev
# get source files
cd ~/
wget https://people.freedesktop.org/~cbrill/libtxc_dxtn/libtxc_dxtn-1.0.1.tar.gz
tar xvfz libtxc_dxtn-1.0.1.tar.gz
cd libtxc_dxtn-1.0.1
# start the job
./configure
make
sudo make install
# clean up sources (optional)
cd ..
rm -rf libtxc_dxtn-1.0.1 libtxc_dxtn-1.0.1.tar.gz

Documentation
Doxygen API Reference
Projects Using VTFLib for Linux
License
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
About
Linux port of Nem's VTFLib http://nemesis.thewavelength.net/index.php?p=40
Resources
Readme
Activity
Stars
49 stars
Watchers
2 watching
Forks
20 forks
Report repository
Releases
Packages
Used by
Contributors
Languages