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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/platform/wayland/host/wayland_buffer_handle.h"
#include <ostream>
#include "ui/ozone/platform/wayland/host/wayland_connection.h"
#include "ui/ozone/platform/wayland/host/wayland_syncobj_timeline.h"
namespace ui {
WaylandBufferHandle::WaylandBufferHandle(WaylandBufferBacking* backing)
: backing_(backing), weak_factory_(this) {}
WaylandBufferHandle::~WaylandBufferHandle() {
for (auto& cb : released_callbacks_)
std::move(cb.second).Run(wl_buffer_.get());
}
void WaylandBufferHandle::OnWlBufferCreated(wl::Object<wl_buffer> wl_buffer) {
CHECK(wl_buffer) << "Failed to create wl_buffer object.";
wl_buffer_ = std::move(wl_buffer);
// Setup buffer release listener callbacks.
static constexpr wl_buffer_listener kBufferListener = {
.release = &OnRelease,
};
if (!backing_->UseExplicitSyncRelease()) {
wl_buffer_add_listener(wl_buffer_.get(), &kBufferListener, this);
}
if (backing_->connection()->linux_drm_syncobj_manager_v1()) {
release_timeline_ =
WaylandSyncobjReleaseTimeline::Create(backing_->connection());
}
if (!created_callback_.is_null())
std::move(created_callback_).Run();
}
void WaylandBufferHandle::OnExplicitRelease(WaylandSurface* requestor) {
auto it = released_callbacks_.find(requestor);
CHECK(it != released_callbacks_.end());
released_callbacks_.erase(it);
}
void WaylandBufferHandle::OnWlBufferReleased(wl_buffer* wl_buff) {
DCHECK_EQ(wl_buff, wl_buffer_.get());
DCHECK(!backing_->UseExplicitSyncRelease());
DCHECK_LE(released_callbacks_.size(), 1u);
if (!released_callbacks_.empty())
std::move(released_callbacks_.begin()->second).Run(wl_buff);
released_callbacks_.clear();
}
base::WeakPtr<WaylandBufferHandle> WaylandBufferHandle::AsWeakPtr() {
return weak_factory_.GetWeakPtr();
}
// static
void WaylandBufferHandle::OnRelease(void* data, wl_buffer* buffer) {
auto* self = static_cast<WaylandBufferHandle*>(data);
DCHECK(self);
self->OnWlBufferReleased(buffer);
}
} // namespace ui
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