Add native self-hosted instance connection to fluxer_desktop

Trimmed monorepo checkout (fluxer_desktop + packages/voice_engine_v2 +
tools/ci) with a "Connect to a Different Server" menu item and popout
that lets the desktop app switch to any self-hosted Fluxer instance,
plus fixes for well-known discovery on single-domain self-hosted
deployments and a false-positive ERR_ABORTED on same-origin client
redirects during the switch. Defaults to chat.fluxr.chat and uses an
isolated userData directory from the official build.
This commit is contained in:
2026-07-01 18:22:43 -04:00
commit 682afacd30
1763 changed files with 613720 additions and 0 deletions
@@ -0,0 +1,156 @@
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# It is not intended for manual editing.
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@@ -0,0 +1,31 @@
# SPDX-License-Identifier: AGPL-3.0-or-later
[package]
name = "d3d12-present-fixture"
version = "0.0.0"
edition = "2024"
license = "AGPL-3.0-or-later"
publish = false
# Empty workspace table keeps this fixture out of any parent Cargo workspace,
# matching the sibling crates (hook/, vulkan-layer/) in this package.
[workspace]
resolver = "2"
[[bin]]
name = "d3d12-present-fixture"
path = "src/main.rs"
[target.'cfg(target_os = "windows")'.dependencies]
windows = {version = "0.62.2", features = [
"Win32_Foundation",
"Win32_Graphics_Direct3D",
"Win32_Graphics_Direct3D12",
"Win32_Graphics_Dxgi",
"Win32_Graphics_Dxgi_Common",
"Win32_Graphics_Gdi",
"Win32_Security",
"Win32_System_LibraryLoader",
"Win32_System_Threading",
"Win32_UI_WindowsAndMessaging",
]}
windows-core = "0.62.2"
@@ -0,0 +1,582 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
#[cfg(not(windows))]
fn main() {
eprintln!("d3d12-present-fixture is only functional on Windows");
}
#[cfg(windows)]
fn main() -> windows_core::Result<()> {
windows_impl::run()
}
#[cfg_attr(not(windows), allow(dead_code))]
mod pattern {
pub const BARS: [(u8, u8, u8); 8] = [
(255, 255, 255),
(255, 255, 0),
(0, 255, 255),
(0, 255, 0),
(255, 0, 255),
(255, 0, 0),
(0, 0, 255),
(0, 0, 0),
];
pub const COUNTER_BLOCK: u32 = 16;
pub fn bar_colour(x: u32, width: u32) -> (u8, u8, u8) {
let width = width.max(1);
let index = ((x as u64 * BARS.len() as u64) / width as u64) as usize;
BARS[index.min(BARS.len() - 1)]
}
pub fn counter_colour(frame_index: u64) -> (u8, u8, u8) {
let low = (frame_index & 0x00FF_FFFF) as u32;
(
(low & 0xFF) as u8,
((low >> 8) & 0xFF) as u8,
((low >> 16) & 0xFF) as u8,
)
}
}
#[cfg_attr(not(windows), allow(dead_code))]
mod cli {
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum PresentFormat {
Bgra8,
Rgba8,
R10G10B10A2,
Rgba16Float,
}
impl PresentFormat {
fn parse(value: &str) -> Option<Self> {
match value {
"bgra8" | "b8g8r8a8" => Some(Self::Bgra8),
"rgba8" | "r8g8b8a8" => Some(Self::Rgba8),
"r10g10b10a2" | "rgb10a2" | "10bit" => Some(Self::R10G10B10A2),
"rgba16f" | "r16g16b16a16f" | "fp16" => Some(Self::Rgba16Float),
_ => None,
}
}
}
pub struct Options {
pub frames: Option<u64>,
pub width: u32,
pub height: u32,
pub borderless: bool,
pub backbuffers: u32,
pub format: PresentFormat,
}
impl Default for Options {
fn default() -> Self {
Self {
frames: None,
width: 1280,
height: 720,
borderless: false,
backbuffers: 2,
format: PresentFormat::Bgra8,
}
}
}
impl Options {
pub fn from_env() -> Self {
let mut options = Options::default();
let mut args = std::env::args().skip(1);
while let Some(arg) = args.next() {
match arg.as_str() {
"--frames" => {
if let Some(value) = args.next().and_then(|v| v.parse().ok()) {
options.frames = Some(value);
}
}
"--width" => {
if let Some(value) = args.next().and_then(|v| v.parse().ok()) {
options.width = value;
}
}
"--height" => {
if let Some(value) = args.next().and_then(|v| v.parse().ok()) {
options.height = value;
}
}
"--backbuffers" => {
if let Some(value) = args.next().and_then(|v| v.parse().ok()) {
options.backbuffers = value;
}
}
"--borderless" => options.borderless = true,
"--windowed" => options.borderless = false,
"--format" => {
if let Some(format) = args.next().and_then(|v| PresentFormat::parse(&v)) {
options.format = format;
}
}
_ => {}
}
}
options.backbuffers = options.backbuffers.max(2);
options
}
}
#[cfg(test)]
mod tests {
use super::PresentFormat;
#[test]
fn parses_explicit_format_modes() {
assert_eq!(PresentFormat::parse("bgra8"), Some(PresentFormat::Bgra8));
assert_eq!(PresentFormat::parse("rgba8"), Some(PresentFormat::Rgba8));
assert_eq!(
PresentFormat::parse("r10g10b10a2"),
Some(PresentFormat::R10G10B10A2)
);
assert_eq!(
PresentFormat::parse("fp16"),
Some(PresentFormat::Rgba16Float)
);
assert_eq!(PresentFormat::parse("unknown"), None);
}
}
}
#[cfg(windows)]
mod windows_impl {
use super::cli::{Options, PresentFormat};
use super::pattern;
use windows::Win32::Foundation::RECT;
use windows::Win32::Foundation::{CloseHandle, HANDLE, HWND, LPARAM, LRESULT, WPARAM};
use windows::Win32::Graphics::Direct3D::{D3D_DRIVER_TYPE_HARDWARE, D3D_FEATURE_LEVEL_11_0};
use windows::Win32::Graphics::Direct3D12::{
D3D12_COMMAND_LIST_TYPE_DIRECT, D3D12_COMMAND_QUEUE_DESC, D3D12_COMMAND_QUEUE_FLAG_NONE,
D3D12_CPU_DESCRIPTOR_HANDLE, D3D12_DESCRIPTOR_HEAP_DESC, D3D12_DESCRIPTOR_HEAP_FLAG_NONE,
D3D12_DESCRIPTOR_HEAP_TYPE_RTV, D3D12_FENCE_FLAG_NONE, D3D12_RESOURCE_BARRIER,
D3D12_RESOURCE_BARRIER_0, D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES,
D3D12_RESOURCE_BARRIER_FLAG_NONE, D3D12_RESOURCE_BARRIER_TYPE_TRANSITION,
D3D12_RESOURCE_STATE_PRESENT, D3D12_RESOURCE_STATE_RENDER_TARGET,
D3D12_RESOURCE_TRANSITION_BARRIER, D3D12CreateDevice, ID3D12CommandAllocator,
ID3D12CommandQueue, ID3D12DescriptorHeap, ID3D12Device, ID3D12Fence,
ID3D12GraphicsCommandList, ID3D12PipelineState, ID3D12Resource,
};
use windows::Win32::Graphics::Dxgi::Common::{
DXGI_ALPHA_MODE_IGNORE, DXGI_FORMAT, DXGI_FORMAT_B8G8R8A8_UNORM,
DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_FORMAT_R10G10B10A2_UNORM, DXGI_FORMAT_R16G16B16A16_FLOAT,
DXGI_SAMPLE_DESC,
};
use windows::Win32::Graphics::Dxgi::{
CreateDXGIFactory2, DXGI_ADAPTER_FLAG, DXGI_ADAPTER_FLAG_SOFTWARE,
DXGI_CREATE_FACTORY_FLAGS, DXGI_SCALING_STRETCH, DXGI_SWAP_CHAIN_DESC1,
DXGI_SWAP_EFFECT_FLIP_DISCARD, DXGI_USAGE_RENDER_TARGET_OUTPUT, IDXGIAdapter1,
IDXGIFactory4, IDXGISwapChain3,
};
use windows::Win32::System::LibraryLoader::GetModuleHandleW;
use windows::Win32::System::Threading::{CreateEventW, INFINITE, WaitForSingleObject};
use windows::Win32::UI::WindowsAndMessaging::{
CS_HREDRAW, CS_VREDRAW, CW_USEDEFAULT, CreateWindowExW, DefWindowProcW, DispatchMessageW,
GetClientRect, MSG, PM_REMOVE, PeekMessageW, PostQuitMessage, RegisterClassExW, SW_SHOW,
ShowWindow, TranslateMessage, WM_DESTROY, WM_QUIT, WNDCLASSEXW, WS_OVERLAPPEDWINDOW,
WS_POPUP, WS_VISIBLE,
};
use windows_core::{Interface, Result, w};
impl PresentFormat {
fn dxgi(self) -> DXGI_FORMAT {
match self {
PresentFormat::Bgra8 => DXGI_FORMAT_B8G8R8A8_UNORM,
PresentFormat::Rgba8 => DXGI_FORMAT_R8G8B8A8_UNORM,
PresentFormat::R10G10B10A2 => DXGI_FORMAT_R10G10B10A2_UNORM,
PresentFormat::Rgba16Float => DXGI_FORMAT_R16G16B16A16_FLOAT,
}
}
}
extern "system" fn wnd_proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT {
unsafe {
match msg {
WM_DESTROY => {
PostQuitMessage(0);
LRESULT(0)
}
_ => DefWindowProcW(hwnd, msg, wparam, lparam),
}
}
}
unsafe fn create_window(width: u32, height: u32, borderless: bool) -> Result<HWND> {
unsafe {
let instance = GetModuleHandleW(None)?;
let class_name = w!("FluxerD3D12Fixture");
let wc = WNDCLASSEXW {
cbSize: size_of::<WNDCLASSEXW>() as u32,
style: CS_HREDRAW | CS_VREDRAW,
lpfnWndProc: Some(wnd_proc),
hInstance: instance.into(),
lpszClassName: class_name,
..Default::default()
};
RegisterClassExW(&wc);
let style = if borderless {
WS_POPUP | WS_VISIBLE
} else {
WS_OVERLAPPEDWINDOW | WS_VISIBLE
};
let hwnd = CreateWindowExW(
Default::default(),
class_name,
w!("Fluxer D3D12 Present Fixture"),
style,
CW_USEDEFAULT,
CW_USEDEFAULT,
width as i32,
height as i32,
None,
None,
Some(instance.into()),
None,
)?;
let _ = ShowWindow(hwnd, SW_SHOW);
Ok(hwnd)
}
}
unsafe fn create_device(factory: &IDXGIFactory4) -> Result<ID3D12Device> {
unsafe {
let mut index = 0u32;
while let Ok(adapter) = factory.EnumAdapters1(index) {
let adapter: IDXGIAdapter1 = adapter;
let desc = adapter.GetDesc1()?;
let is_software =
(DXGI_ADAPTER_FLAG(desc.Flags as i32).0 & DXGI_ADAPTER_FLAG_SOFTWARE.0) != 0;
if !is_software {
let mut device: Option<ID3D12Device> = None;
if D3D12CreateDevice(&adapter, D3D_FEATURE_LEVEL_11_0, &mut device).is_ok() {
if let Some(device) = device {
return Ok(device);
}
}
}
index += 1;
}
let mut device: Option<ID3D12Device> = None;
let _ = D3D_DRIVER_TYPE_HARDWARE;
D3D12CreateDevice(None, D3D_FEATURE_LEVEL_11_0, &mut device)?;
device.ok_or_else(windows_core::Error::from_thread)
}
}
struct Renderer {
device: ID3D12Device,
queue: ID3D12CommandQueue,
swap_chain: IDXGISwapChain3,
rtv_heap: ID3D12DescriptorHeap,
rtv_descriptor_size: usize,
render_targets: Vec<ID3D12Resource>,
allocators: Vec<ID3D12CommandAllocator>,
list: ID3D12GraphicsCommandList,
fence: ID3D12Fence,
fence_event: HANDLE,
fence_value: u64,
frame_fence_values: Vec<u64>,
width: u32,
height: u32,
format: PresentFormat,
}
impl Renderer {
unsafe fn new(
hwnd: HWND,
width: u32,
height: u32,
backbuffers: u32,
format: PresentFormat,
) -> Result<Self> {
unsafe {
let factory: IDXGIFactory4 = CreateDXGIFactory2(DXGI_CREATE_FACTORY_FLAGS(0))?;
let device = create_device(&factory)?;
let queue_desc = D3D12_COMMAND_QUEUE_DESC {
Type: D3D12_COMMAND_LIST_TYPE_DIRECT,
Priority: 0,
Flags: D3D12_COMMAND_QUEUE_FLAG_NONE,
NodeMask: 0,
};
let queue: ID3D12CommandQueue = device.CreateCommandQueue(&queue_desc)?;
let desc = DXGI_SWAP_CHAIN_DESC1 {
Width: width,
Height: height,
Format: format.dxgi(),
Stereo: false.into(),
SampleDesc: DXGI_SAMPLE_DESC {
Count: 1,
Quality: 0,
},
BufferUsage: DXGI_USAGE_RENDER_TARGET_OUTPUT,
BufferCount: backbuffers,
Scaling: DXGI_SCALING_STRETCH,
SwapEffect: DXGI_SWAP_EFFECT_FLIP_DISCARD,
AlphaMode: DXGI_ALPHA_MODE_IGNORE,
Flags: 0,
};
let swap_chain1 =
factory.CreateSwapChainForHwnd(&queue, hwnd, &desc, None, None)?;
let swap_chain: IDXGISwapChain3 = swap_chain1.cast()?;
let rtv_heap_desc = D3D12_DESCRIPTOR_HEAP_DESC {
Type: D3D12_DESCRIPTOR_HEAP_TYPE_RTV,
NumDescriptors: backbuffers,
Flags: D3D12_DESCRIPTOR_HEAP_FLAG_NONE,
NodeMask: 0,
};
let rtv_heap: ID3D12DescriptorHeap = device.CreateDescriptorHeap(&rtv_heap_desc)?;
let rtv_descriptor_size = device
.GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV)
as usize;
let heap_start = rtv_heap.GetCPUDescriptorHandleForHeapStart();
let mut render_targets = Vec::with_capacity(backbuffers as usize);
let mut allocators = Vec::with_capacity(backbuffers as usize);
for i in 0..backbuffers {
let back_buffer: ID3D12Resource = swap_chain.GetBuffer(i)?;
let handle = D3D12_CPU_DESCRIPTOR_HANDLE {
ptr: heap_start.ptr + i as usize * rtv_descriptor_size,
};
device.CreateRenderTargetView(&back_buffer, None, handle);
render_targets.push(back_buffer);
let allocator: ID3D12CommandAllocator =
device.CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT)?;
allocators.push(allocator);
}
let list: ID3D12GraphicsCommandList = device.CreateCommandList(
0,
D3D12_COMMAND_LIST_TYPE_DIRECT,
&allocators[0],
None::<&ID3D12PipelineState>,
)?;
list.Close()?;
let fence: ID3D12Fence = device.CreateFence(0, D3D12_FENCE_FLAG_NONE)?;
let fence_event = CreateEventW(None, false, false, None)?;
Ok(Self {
device,
queue,
swap_chain,
rtv_heap,
rtv_descriptor_size,
render_targets,
frame_fence_values: vec![0; backbuffers as usize],
allocators,
list,
fence,
fence_event,
fence_value: 0,
width,
height,
format,
})
}
}
unsafe fn transition(
resource: &ID3D12Resource,
before: windows::Win32::Graphics::Direct3D12::D3D12_RESOURCE_STATES,
after: windows::Win32::Graphics::Direct3D12::D3D12_RESOURCE_STATES,
) -> D3D12_RESOURCE_BARRIER {
D3D12_RESOURCE_BARRIER {
Type: D3D12_RESOURCE_BARRIER_TYPE_TRANSITION,
Flags: D3D12_RESOURCE_BARRIER_FLAG_NONE,
Anonymous: D3D12_RESOURCE_BARRIER_0 {
Transition: std::mem::ManuallyDrop::new(D3D12_RESOURCE_TRANSITION_BARRIER {
pResource: std::mem::ManuallyDrop::new(Some(resource.clone())),
Subresource: D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES,
StateBefore: before,
StateAfter: after,
}),
},
}
}
unsafe fn render_frame(&mut self, frame_index: u64) -> Result<()> {
unsafe {
let buffer_index = self.swap_chain.GetCurrentBackBufferIndex() as usize;
self.wait_for_fence_value(self.frame_fence_values[buffer_index])?;
let allocator = &self.allocators[buffer_index];
let back_buffer = &self.render_targets[buffer_index];
allocator.Reset()?;
self.list.Reset(allocator, None::<&ID3D12PipelineState>)?;
let to_rt = Self::transition(
back_buffer,
D3D12_RESOURCE_STATE_PRESENT,
D3D12_RESOURCE_STATE_RENDER_TARGET,
);
self.list.ResourceBarrier(&[to_rt]);
let rtv = D3D12_CPU_DESCRIPTOR_HANDLE {
ptr: self.rtv_heap.GetCPUDescriptorHandleForHeapStart().ptr
+ buffer_index * self.rtv_descriptor_size,
};
self.list.OMSetRenderTargets(1, Some(&rtv), false, None);
self.paint_pattern(rtv, frame_index);
let to_present = Self::transition(
back_buffer,
D3D12_RESOURCE_STATE_RENDER_TARGET,
D3D12_RESOURCE_STATE_PRESENT,
);
self.list.ResourceBarrier(&[to_present]);
self.list.Close()?;
let command_list: windows::Win32::Graphics::Direct3D12::ID3D12CommandList =
self.list.cast()?;
self.queue.ExecuteCommandLists(&[Some(command_list)]);
self.swap_chain.Present(1, Default::default()).ok()?;
self.fence_value += 1;
let signal = self.fence_value;
self.queue.Signal(&self.fence, signal)?;
self.frame_fence_values[buffer_index] = signal;
Ok(())
}
}
unsafe fn paint_pattern(&self, rtv: D3D12_CPU_DESCRIPTOR_HANDLE, frame_index: u64) {
unsafe {
let width = self.width.max(1);
let height = self.height as i32;
let luma = (frame_index & 0xFF) as u8;
for bar in 0..pattern::BARS.len() as u32 {
let x0 = ((bar as u64 * width as u64) / pattern::BARS.len() as u64) as i32;
let x1 =
(((bar + 1) as u64 * width as u64) / pattern::BARS.len() as u64) as i32;
if x1 <= x0 {
continue;
}
let (r, g, b) = pattern::bar_colour(x0 as u32, width);
let colour = rgba(self.format, r, g, b.saturating_add(luma / 4));
let rect = RECT {
left: x0,
top: 0,
right: x1,
bottom: height,
};
self.list.ClearRenderTargetView(rtv, &colour, Some(&[rect]));
}
let (cr, cg, cb) = pattern::counter_colour(frame_index);
let block = pattern::COUNTER_BLOCK as i32;
let counter_rect = RECT {
left: 0,
top: 0,
right: block.min(self.width as i32),
bottom: block.min(height),
};
let counter_colour = rgba(self.format, cr, cg, cb);
self.list
.ClearRenderTargetView(rtv, &counter_colour, Some(&[counter_rect]));
}
}
unsafe fn wait_for_fence_value(&self, value: u64) -> Result<()> {
unsafe {
if value == 0 || self.fence.GetCompletedValue() >= value {
return Ok(());
}
self.fence.SetEventOnCompletion(value, self.fence_event)?;
WaitForSingleObject(self.fence_event, INFINITE);
Ok(())
}
}
unsafe fn flush(&mut self) -> Result<()> {
unsafe {
self.fence_value += 1;
let signal = self.fence_value;
self.queue.Signal(&self.fence, signal)?;
self.wait_for_fence_value(signal)
}
}
}
impl Drop for Renderer {
fn drop(&mut self) {
unsafe {
let _ = self.flush();
let _ = CloseHandle(self.fence_event);
let _ = &self.device;
}
}
}
fn rgba(format: PresentFormat, r: u8, g: u8, b: u8) -> [f32; 4] {
let highlight =
if matches!(format, PresentFormat::Rgba16Float) && r == 255 && g == 255 && b > 240 {
1.25
} else {
1.0
};
[
(r as f32 / 255.0) * highlight,
(g as f32 / 255.0) * highlight,
(b as f32 / 255.0) * highlight,
1.0,
]
}
pub fn run() -> Result<()> {
let options = Options::from_env();
unsafe {
let hwnd = create_window(options.width, options.height, options.borderless)?;
let mut rect = Default::default();
let _ = GetClientRect(hwnd, &mut rect);
let width = ((rect.right - rect.left).max(1)) as u32;
let height = ((rect.bottom - rect.top).max(1)) as u32;
let mut renderer =
Renderer::new(hwnd, width, height, options.backbuffers, options.format)?;
println!("HWND={}", hwnd.0 as isize);
use std::io::Write;
let _ = std::io::stdout().flush();
let mut frame_index: u64 = 0;
let mut msg = MSG::default();
loop {
while PeekMessageW(&mut msg, None, 0, 0, PM_REMOVE).as_bool() {
if msg.message == WM_QUIT {
return Ok(());
}
let _ = TranslateMessage(&msg);
DispatchMessageW(&msg);
}
renderer.render_frame(frame_index)?;
frame_index += 1;
if let Some(limit) = options.frames {
if frame_index >= limit {
return Ok(());
}
}
}
}
}
}