mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-05-20 17:28:49 +00:00
803550111a
GTK 4.14 comes with a new GL renderer that does not support GL shader nodes anymore, so the conversion from non-premultiplied alpha to premultiplied alpha has to happen differently. For GTK 4.14 or newer we use the correct format directly when building the texture, but only if a GLES3+ context is used. In that case the NGL renderer is used by GTK, which supports non-premultiplied formats correctly and fast. For GTK 4.10-4.12, or 4.14 and newer if a GLES2 context is used, we use a self-mask to pre-multiply the alpha. For GTK before 4.10, we use a GL shader and hope that it works. Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/488 Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1452>
42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
Rust
//
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// Copyright (C) 2021 Bilal Elmoussaoui <bil.elmoussaoui@gmail.com>
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// Copyright (C) 2021 Jordan Petridis <jordan@centricular.com>
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// Copyright (C) 2021 Sebastian Dröge <sebastian@centricular.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License, v2.0.
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// If a copy of the MPL was not distributed with this file, You can obtain one at
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// <https://mozilla.org/MPL/2.0/>.
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//
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// SPDX-License-Identifier: MPL-2.0
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use gtk::glib;
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use gtk::glib::prelude::*;
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mod frame;
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pub(super) mod imp;
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mod paintable;
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enum SinkEvent {
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FrameChanged,
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}
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glib::wrapper! {
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pub struct PaintableSink(ObjectSubclass<imp::PaintableSink>)
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@extends gst_video::VideoSink, gst_base::BaseSink, gst::Element, gst::Object;
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}
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impl PaintableSink {
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pub fn new(name: Option<&str>) -> Self {
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glib::Object::builder().property("name", name).build()
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}
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}
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pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
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gst::Element::register(
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Some(plugin),
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"gtk4paintablesink",
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gst::Rank::NONE,
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PaintableSink::static_type(),
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)
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}
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