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examples: Add Windows support to glupload

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WGL does not have the concept of a `Display` connection, presumably
because there's always only one compositor active.  All interop
and sharing is happening from the `Context` afterwards.

After all `glutin` doesn't have a pointer inside `RawDisplay::Wgl`,
and upstream `gstreamer` code creates a dummy display on Win32.

WINRT is not taken into account & tested yet.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1468>
This commit is contained in:
Marijn Suijten 2024-06-20 10:49:14 +02:00
parent f3d7e18bcd
commit cfb0fe6a17
4 changed files with 22 additions and 6 deletions
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11
Cargo.lock generated
View file

@ -776,12 +776,14 @@ dependencies = [
"dispatch",
"glutin_egl_sys",
"glutin_glx_sys",
"glutin_wgl_sys",
"icrate",
"libloading",
"objc2",
"once_cell",
"raw-window-handle",
"wayland-sys",
"windows-sys 0.48.0",
"x11-dl",
]
@ -817,6 +819,15 @@ dependencies = [
"x11-dl",
]
[[package]]
name = "glutin_wgl_sys"
version = "0.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6c8098adac955faa2d31079b65dc48841251f69efd3ac25477903fc424362ead"
dependencies = [
"gl_generator",
]
[[package]]
name = "gobject-sys"
version = "0.20.0"

2
ci/run_windows_tests.ps1
View file

@ -54,7 +54,7 @@ foreach($features in $features_matrix) {
if ($env:LocalFeatures -and ($env:LocalFeatures -ne '--no-default-features')) {
if ($crate -eq 'examples') {
# FIXME: We can do --all-features for examples once we have gtk3 installed in the image
$env:LocalFeatures = "--features=rtsp-server,rtsp-server-record,pango-cairo,overlay-composition,gst-play,gst-player,ges,image,cairo-rs,gst-video/v1_18,windows"
$env:LocalFeatures = "--features=rtsp-server,rtsp-server-record,pango-cairo,overlay-composition,gst-play,gst-player,ges,image,cairo-rs,gst-video/v1_18,windows,gl"
}
if ($crate -eq 'tutorials') {

5
examples/Cargo.toml
View file

@ -30,8 +30,9 @@ byte-slice-cast = "1"
cairo-rs = { workspace = true, features=["use_glib"], optional = true }
derive_more = "0.99.5"
futures = "0.3"
glutin = { version = "0.31", optional = true, default-features = false }
glutin-winit = { version = "0.4", optional = true, default-features = false }
# Since there's nothing Windows-specific to enable on gstreamer-rs, unconditionally enable glutin's WGL backend
glutin = { version = "0.31", optional = true, default-features = false, features = ["wgl"] }
glutin-winit = { version = "0.4", optional = true, default-features = false, features = ["wgl"] }
image = { version = "0.24", optional = true, default-features = false, features = ["png", "jpeg"] }
memfd = { version = "0.6", optional = true }
memmap2 = { version = "0.9", optional = true }

10
examples/src/glupload.rs
View file

@ -434,8 +434,8 @@ impl App {
println!("Using raw GL context {:?}", raw_gl_context);
#[cfg(not(target_os = "linux"))]
compile_error!("This example only has Linux support");
#[cfg(not(any(target_os = "linux", windows)))]
compile_error!("This example only has Linux and Windows support");
let api = App::map_gl_api(gl_config.api());
@ -449,7 +449,6 @@ impl App {
unsafe { gst_gl_egl::GLDisplayEGL::with_egl_display(egl_display as usize) }
.context("Failed to create GLDisplayEGL from raw `EGLDisplay`")?
.upcast::<gst_gl::GLDisplay>();
(egl_context as usize, gl_display, gst_gl::GLPlatform::EGL)
}
#[cfg(feature = "gst-gl-x11")]
@ -463,6 +462,11 @@ impl App {
.upcast::<gst_gl::GLDisplay>();
(glx_context as usize, gl_display, gst_gl::GLPlatform::GLX)
}
#[cfg(windows)]
(glutin::display::RawDisplay::Wgl, glutin::context::RawContext::Wgl(wgl_context)) => {
let gl_display = gst_gl::GLDisplay::new();
(wgl_context as usize, gl_display, gst_gl::GLPlatform::WGL)
}
#[allow(unreachable_patterns)]
handler => anyhow::bail!("Unsupported platform: {handler:?}."),
};