mirror of
https://github.com/mozilla/gecko-dev.git
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786a526298
Differential Revision: https://phabricator.services.mozilla.com/D12255 --HG-- extra : moz-landing-system : lando
753 lines
23 KiB
C++
753 lines
23 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsWaylandDisplay.h"
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#include "WindowSurfaceWayland.h"
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#include "nsPrintfCString.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Tools.h"
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#include "gfxPlatform.h"
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#include "mozcontainer.h"
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#include "nsTArray.h"
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#include "base/message_loop.h" // for MessageLoop
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#include "base/task.h" // for NewRunnableMethod, etc
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <errno.h>
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namespace mozilla {
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namespace widget {
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/*
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Wayland multi-thread rendering scheme
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Every rendering thread (main thread, compositor thread) contains its own
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nsWaylandDisplay object connected to Wayland compositor (Mutter, Weston, etc.)
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WindowSurfaceWayland implements WindowSurface class and draws nsWindow by
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WindowSurface interface (Lock, Commit) to screen through nsWaylandDisplay.
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----------------------
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| Wayland compositor |
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----------------------
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^
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----------------------
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| nsWaylandDisplay |
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----------------------
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^ ^
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| |
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| --------------------------------- ------------------
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| | WindowSurfaceWayland |<------>| nsWindow |
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| | | ------------------
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| | ----------------------- |
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| | | WindowBackBuffer | |
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| | | | |
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| | | ------------------- | |
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| | | | WaylandShmPool | | |
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| | | ------------------- | |
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| | ----------------------- |
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| | |
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| | ----------------------- |
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| | | WindowBackBuffer | |
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| | | | |
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| | | ------------------- | |
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| | | | WaylandShmPool | | |
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| | | ------------------- | |
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| | ----------------------- |
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| ---------------------------------
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--------------------------------- ------------------
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| WindowSurfaceWayland |<------>| nsWindow |
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| | ------------------
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| ----------------------- |
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| | WindowBackBuffer | |
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| | | |
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| | ------------------- | |
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| | | WaylandShmPool | | |
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| | ------------------- | |
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| ----------------------- |
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| ----------------------- |
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| | WindowBackBuffer | |
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| | | |
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| | ------------------- | |
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| | | WaylandShmPool | | |
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| | ------------------- | |
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| ----------------------- |
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---------------------------------
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nsWaylandDisplay
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Is our connection to Wayland display server,
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holds our display connection (wl_display) and event queue (wl_event_queue).
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nsWaylandDisplay is created for every thread which sends data to Wayland
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compositor. Wayland events for main thread is served by default Gtk+ loop,
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for other threads (compositor) we must create wl_event_queue and run event loop.
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WindowSurfaceWayland
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Is a Wayland implementation of WindowSurface class for WindowSurfaceProvider,
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we implement Lock() and Commit() interfaces from WindowSurface
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for actual drawing.
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One WindowSurfaceWayland draws one nsWindow so those are tied 1:1.
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At Wayland level it holds one wl_surface object.
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To perform visualiation of nsWindow, WindowSurfaceWayland contains one
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wl_surface and two wl_buffer objects (owned by WindowBackBuffer)
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as we use double buffering. When nsWindow drawing is finished to wl_buffer,
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the wl_buffer is attached to wl_surface and it's sent to Wayland compositor.
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WindowBackBuffer
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Manages one wl_buffer. It owns wl_buffer object, owns WaylandShmPool
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(which provides shared memory) and ties them together.
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Wl_buffer is a main Wayland object with actual graphics data.
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Wl_buffer basically represent one complete window screen.
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When double buffering is involved every window (GdkWindow for instance)
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utilises two wl_buffers which are cycled. One is filed with data by application
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and one is rendered by compositor.
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WaylandShmPool
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WaylandShmPool acts as a manager of shared memory for WindowBackBuffer.
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Allocates it, holds reference to it and releases it.
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We allocate shared memory (shm) by mmap(..., MAP_SHARED,...) as an interface
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between us and wayland compositor. We draw our graphics data to the shm and
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handle to wayland compositor by WindowBackBuffer/WindowSurfaceWayland
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(wl_buffer/wl_surface).
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*/
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#define BUFFER_BPP 4
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gfx::SurfaceFormat WindowBackBuffer::mFormat = gfx::SurfaceFormat::B8G8R8A8;
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int
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WaylandShmPool::CreateTemporaryFile(int aSize)
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{
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const char* tmppath = getenv("XDG_RUNTIME_DIR");
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MOZ_RELEASE_ASSERT(tmppath, "Missing XDG_RUNTIME_DIR env variable.");
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nsPrintfCString tmpname("%s/mozilla-shared-XXXXXX", tmppath);
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char* filename;
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int fd = -1;
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int ret = 0;
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if (tmpname.GetMutableData(&filename)) {
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fd = mkstemp(filename);
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if (fd >= 0) {
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int flags = fcntl(fd, F_GETFD);
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if (flags >= 0) {
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fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
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}
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}
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}
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if (fd >= 0) {
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unlink(tmpname.get());
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} else {
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printf_stderr("Unable to create mapping file %s\n", filename);
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MOZ_CRASH();
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}
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#ifdef HAVE_POSIX_FALLOCATE
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do {
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ret = posix_fallocate(fd, 0, aSize);
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} while (ret == EINTR);
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if (ret != 0) {
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close(fd);
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}
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#else
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do {
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ret = ftruncate(fd, aSize);
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} while (ret < 0 && errno == EINTR);
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if (ret < 0) {
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close(fd);
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}
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#endif
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MOZ_RELEASE_ASSERT(ret == 0, "Mapping file allocation failed.");
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return fd;
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}
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WaylandShmPool::WaylandShmPool(nsWaylandDisplay* aWaylandDisplay, int aSize)
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: mAllocatedSize(aSize)
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{
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mShmPoolFd = CreateTemporaryFile(mAllocatedSize);
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mImageData = mmap(nullptr, mAllocatedSize,
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PROT_READ | PROT_WRITE, MAP_SHARED, mShmPoolFd, 0);
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MOZ_RELEASE_ASSERT(mImageData != MAP_FAILED,
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"Unable to map drawing surface!");
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mShmPool = wl_shm_create_pool(aWaylandDisplay->GetShm(),
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mShmPoolFd, mAllocatedSize);
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// We set our queue to get mShmPool events at compositor thread.
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wl_proxy_set_queue((struct wl_proxy *)mShmPool,
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aWaylandDisplay->GetEventQueue());
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}
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bool
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WaylandShmPool::Resize(int aSize)
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{
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// We do size increase only
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if (aSize <= mAllocatedSize)
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return true;
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if (ftruncate(mShmPoolFd, aSize) < 0)
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return false;
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#ifdef HAVE_POSIX_FALLOCATE
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do {
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errno = posix_fallocate(mShmPoolFd, 0, aSize);
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} while (errno == EINTR);
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if (errno != 0)
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return false;
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#endif
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wl_shm_pool_resize(mShmPool, aSize);
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munmap(mImageData, mAllocatedSize);
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mImageData = mmap(nullptr, aSize,
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PROT_READ | PROT_WRITE, MAP_SHARED, mShmPoolFd, 0);
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if (mImageData == MAP_FAILED)
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return false;
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mAllocatedSize = aSize;
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return true;
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}
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void
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WaylandShmPool::SetImageDataFromPool(class WaylandShmPool* aSourcePool,
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int aImageDataSize)
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{
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MOZ_ASSERT(mAllocatedSize >= aImageDataSize, "WaylandShmPool overflows!");
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memcpy(mImageData, aSourcePool->GetImageData(), aImageDataSize);
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}
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WaylandShmPool::~WaylandShmPool()
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{
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munmap(mImageData, mAllocatedSize);
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wl_shm_pool_destroy(mShmPool);
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close(mShmPoolFd);
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}
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static void
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buffer_release(void *data, wl_buffer *buffer)
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{
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auto surface = reinterpret_cast<WindowBackBuffer*>(data);
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surface->Detach();
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}
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static const struct wl_buffer_listener buffer_listener = {
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buffer_release
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};
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void WindowBackBuffer::Create(int aWidth, int aHeight)
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{
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MOZ_ASSERT(!IsAttached(), "We can't resize attached buffers.");
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int newBufferSize = aWidth*aHeight*BUFFER_BPP;
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mShmPool.Resize(newBufferSize);
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mWaylandBuffer = wl_shm_pool_create_buffer(mShmPool.GetShmPool(), 0,
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aWidth, aHeight, aWidth*BUFFER_BPP,
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WL_SHM_FORMAT_ARGB8888);
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wl_proxy_set_queue((struct wl_proxy *)mWaylandBuffer,
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mWaylandDisplay->GetEventQueue());
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wl_buffer_add_listener(mWaylandBuffer, &buffer_listener, this);
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mWidth = aWidth;
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mHeight = aHeight;
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}
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void WindowBackBuffer::Release()
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{
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wl_buffer_destroy(mWaylandBuffer);
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mWidth = mHeight = 0;
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}
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void WindowBackBuffer::Clear()
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{
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memset(mShmPool.GetImageData(), 0, mHeight * mWidth * BUFFER_BPP);
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}
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WindowBackBuffer::WindowBackBuffer(nsWaylandDisplay* aWaylandDisplay,
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int aWidth, int aHeight)
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: mShmPool(aWaylandDisplay, aWidth*aHeight*BUFFER_BPP)
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,mWaylandBuffer(nullptr)
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,mWidth(aWidth)
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,mHeight(aHeight)
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,mAttached(false)
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,mWaylandDisplay(aWaylandDisplay)
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{
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Create(aWidth, aHeight);
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}
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WindowBackBuffer::~WindowBackBuffer()
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{
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Release();
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}
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bool
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WindowBackBuffer::Resize(int aWidth, int aHeight)
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{
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if (aWidth == mWidth && aHeight == mHeight)
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return true;
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Release();
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Create(aWidth, aHeight);
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return (mWaylandBuffer != nullptr);
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}
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void
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WindowBackBuffer::Attach(wl_surface* aSurface)
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{
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wl_surface_attach(aSurface, mWaylandBuffer, 0, 0);
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wl_surface_commit(aSurface);
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wl_display_flush(mWaylandDisplay->GetDisplay());
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mAttached = true;
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}
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void
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WindowBackBuffer::Detach()
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{
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mAttached = false;
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}
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bool
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WindowBackBuffer::SetImageDataFromBuffer(
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class WindowBackBuffer* aSourceBuffer)
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{
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if (!IsMatchingSize(aSourceBuffer)) {
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Resize(aSourceBuffer->mWidth, aSourceBuffer->mHeight);
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}
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mShmPool.SetImageDataFromPool(&aSourceBuffer->mShmPool,
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aSourceBuffer->mWidth * aSourceBuffer->mHeight * BUFFER_BPP);
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return true;
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}
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already_AddRefed<gfx::DrawTarget>
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WindowBackBuffer::Lock()
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{
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gfx::IntSize lockSize(mWidth, mHeight);
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return gfxPlatform::CreateDrawTargetForData(static_cast<unsigned char*>(mShmPool.GetImageData()),
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lockSize,
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BUFFER_BPP * mWidth,
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mFormat);
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}
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static void
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frame_callback_handler(void *data, struct wl_callback *callback, uint32_t time)
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{
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auto surface = reinterpret_cast<WindowSurfaceWayland*>(data);
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surface->FrameCallbackHandler();
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gfxPlatformGtk::GetPlatform()->SetWaylandLastVsync(time);
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}
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static const struct wl_callback_listener frame_listener = {
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frame_callback_handler
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};
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WindowSurfaceWayland::WindowSurfaceWayland(nsWindow *aWindow)
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: mWindow(aWindow)
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, mWaylandDisplay(WaylandDisplayGet())
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, mWaylandBuffer(nullptr)
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, mFrameCallback(nullptr)
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, mLastCommittedSurface(nullptr)
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, mDisplayThreadMessageLoop(MessageLoop::current())
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, mDelayedCommitHandle(nullptr)
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, mDrawToWaylandBufferDirectly(true)
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, mPendingCommit(false)
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, mWaylandBufferFullScreenDamage(false)
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, mIsMainThread(NS_IsMainThread())
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, mNeedScaleFactorUpdate(true)
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{
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for (int i = 0; i < BACK_BUFFER_NUM; i++)
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mBackupBuffer[i] = nullptr;
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}
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WindowSurfaceWayland::~WindowSurfaceWayland()
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{
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if (mPendingCommit) {
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NS_WARNING("Deleted WindowSurfaceWayland with a pending commit!");
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}
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if (mDelayedCommitHandle) {
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// Delete reference to this to prevent WaylandBufferDelayCommitHandler()
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// operate on released this. mDelayedCommitHandle itself will
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// be released at WaylandBufferDelayCommitHandler().
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*mDelayedCommitHandle = nullptr;
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}
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if (mFrameCallback) {
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wl_callback_destroy(mFrameCallback);
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}
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delete mWaylandBuffer;
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for (int i = 0; i < BACK_BUFFER_NUM; i++) {
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if (mBackupBuffer[i]) {
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delete mBackupBuffer[i];
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}
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}
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if (!mIsMainThread) {
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// We can be destroyed from main thread even though we was created/used
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// in compositor thread. We have to unref/delete WaylandDisplay in compositor
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// thread then and we can't use MessageLoop::current() here.
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mDisplayThreadMessageLoop->PostTask(
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NewRunnableFunction("WaylandDisplayRelease",
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&WaylandDisplayRelease,
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mWaylandDisplay));
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} else {
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WaylandDisplayRelease(mWaylandDisplay);
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}
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}
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WindowBackBuffer*
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WindowSurfaceWayland::GetWaylandBufferToDraw(int aWidth, int aHeight)
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{
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if (!mWaylandBuffer) {
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mWaylandBuffer = new WindowBackBuffer(mWaylandDisplay, aWidth, aHeight);
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return mWaylandBuffer;
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}
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if (!mWaylandBuffer->IsAttached()) {
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if (!mWaylandBuffer->IsMatchingSize(aWidth, aHeight)) {
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mWaylandBuffer->Resize(aWidth, aHeight);
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// There's a chance that scale factor has been changed
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// when buffer size changed
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mNeedScaleFactorUpdate = true;
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}
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return mWaylandBuffer;
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}
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MOZ_ASSERT(!mPendingCommit,
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"Uncommitted buffer switch, screen artifacts ahead.");
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// Front buffer is used by compositor, select a back buffer
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int availableBuffer;
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for (availableBuffer = 0; availableBuffer < BACK_BUFFER_NUM;
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availableBuffer++) {
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if (!mBackupBuffer[availableBuffer]) {
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mBackupBuffer[availableBuffer] =
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new WindowBackBuffer(mWaylandDisplay, aWidth, aHeight);
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break;
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}
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if (!mBackupBuffer[availableBuffer]->IsAttached()) {
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break;
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}
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}
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if (MOZ_UNLIKELY(availableBuffer == BACK_BUFFER_NUM)) {
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NS_WARNING("No drawing buffer available");
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return nullptr;
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}
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WindowBackBuffer *lastWaylandBuffer = mWaylandBuffer;
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mWaylandBuffer = mBackupBuffer[availableBuffer];
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mBackupBuffer[availableBuffer] = lastWaylandBuffer;
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if (lastWaylandBuffer->IsMatchingSize(aWidth, aHeight)) {
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// Former front buffer has the same size as a requested one.
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// Gecko may expect a content already drawn on screen so copy
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// existing data to the new buffer.
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mWaylandBuffer->SetImageDataFromBuffer(lastWaylandBuffer);
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// When buffer switches we need to damage whole screen
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// (https://bugzilla.redhat.com/show_bug.cgi?id=1418260)
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mWaylandBufferFullScreenDamage = true;
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} else {
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// Former buffer has different size from the new request. Only resize
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// the new buffer and leave gecko to render new whole content.
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mWaylandBuffer->Resize(aWidth, aHeight);
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}
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return mWaylandBuffer;
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}
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already_AddRefed<gfx::DrawTarget>
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WindowSurfaceWayland::LockWaylandBuffer(int aWidth, int aHeight, bool aClearBuffer)
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{
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WindowBackBuffer* buffer = GetWaylandBufferToDraw(aWidth, aHeight);
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if (!buffer) {
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NS_WARNING("WindowSurfaceWayland::LockWaylandBuffer(): No buffer available");
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return nullptr;
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}
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if (aClearBuffer) {
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buffer->Clear();
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}
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return buffer->Lock();
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}
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already_AddRefed<gfx::DrawTarget>
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WindowSurfaceWayland::LockImageSurface(const gfx::IntSize& aLockSize)
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{
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if (!mImageSurface || mImageSurface->CairoStatus() ||
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!(aLockSize <= mImageSurface->GetSize())) {
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mImageSurface = new gfxImageSurface(aLockSize,
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SurfaceFormatToImageFormat(WindowBackBuffer::GetSurfaceFormat()));
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if (mImageSurface->CairoStatus()) {
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return nullptr;
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}
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}
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return gfxPlatform::CreateDrawTargetForData(mImageSurface->Data(),
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mImageSurface->GetSize(),
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mImageSurface->Stride(),
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WindowBackBuffer::GetSurfaceFormat());
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}
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/*
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There are some situations which can happen here:
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A) Lock() is called to whole surface. In that case we don't need
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to clip/buffer the drawing and we can return wl_buffer directly
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for drawing.
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- mWaylandBuffer is available - that's an ideal situation.
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- mWaylandBuffer is locked by compositor - flip buffers and draw.
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- if we can't flip buffers - go B)
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B) Lock() is requested for part(s) of screen. We need to provide temporary
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surface to draw into and copy result (clipped) to target wl_surface.
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*/
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already_AddRefed<gfx::DrawTarget>
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WindowSurfaceWayland::Lock(const LayoutDeviceIntRegion& aRegion)
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{
|
|
MOZ_ASSERT(mIsMainThread == NS_IsMainThread());
|
|
|
|
LayoutDeviceIntRect screenRect = mWindow->GetBounds();
|
|
gfx::IntRect bounds = aRegion.GetBounds().ToUnknownRect();
|
|
gfx::IntSize lockSize(bounds.XMost(), bounds.YMost());
|
|
|
|
// Are we asked for entire nsWindow to draw?
|
|
mDrawToWaylandBufferDirectly = (aRegion.GetNumRects() == 1 &&
|
|
bounds.x == 0 && bounds.y == 0 &&
|
|
lockSize.width == screenRect.width &&
|
|
lockSize.height == screenRect.height);
|
|
|
|
if (mDrawToWaylandBufferDirectly) {
|
|
RefPtr<gfx::DrawTarget> dt = LockWaylandBuffer(screenRect.width,
|
|
screenRect.height,
|
|
mWindow->WaylandSurfaceNeedsClear());
|
|
if (dt) {
|
|
return dt.forget();
|
|
}
|
|
|
|
// We don't have any front buffer available. Try indirect drawing
|
|
// to mImageSurface which is mirrored to front buffer at commit.
|
|
mDrawToWaylandBufferDirectly = false;
|
|
}
|
|
|
|
return LockImageSurface(lockSize);
|
|
}
|
|
|
|
bool
|
|
WindowSurfaceWayland::CommitImageSurfaceToWaylandBuffer(const LayoutDeviceIntRegion& aRegion)
|
|
{
|
|
MOZ_ASSERT(!mDrawToWaylandBufferDirectly);
|
|
|
|
LayoutDeviceIntRect screenRect = mWindow->GetBounds();
|
|
gfx::IntRect bounds = aRegion.GetBounds().ToUnknownRect();
|
|
|
|
gfx::Rect rect(bounds);
|
|
if (rect.IsEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
RefPtr<gfx::DrawTarget> dt = LockWaylandBuffer(screenRect.width,
|
|
screenRect.height,
|
|
mWindow->WaylandSurfaceNeedsClear());
|
|
RefPtr<gfx::SourceSurface> surf =
|
|
gfx::Factory::CreateSourceSurfaceForCairoSurface(mImageSurface->CairoSurface(),
|
|
mImageSurface->GetSize(),
|
|
mImageSurface->Format());
|
|
if (!dt || !surf) {
|
|
return false;
|
|
}
|
|
|
|
uint32_t numRects = aRegion.GetNumRects();
|
|
if (numRects != 1) {
|
|
AutoTArray<IntRect, 32> rects;
|
|
rects.SetCapacity(numRects);
|
|
for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
|
|
rects.AppendElement(iter.Get().ToUnknownRect());
|
|
}
|
|
dt->PushDeviceSpaceClipRects(rects.Elements(), rects.Length());
|
|
}
|
|
|
|
dt->DrawSurface(surf, rect, rect);
|
|
|
|
if (numRects != 1) {
|
|
dt->PopClip();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
WaylandBufferDelayCommitHandler(WindowSurfaceWayland **aSurface)
|
|
{
|
|
if (*aSurface) {
|
|
(*aSurface)->DelayedCommitHandler();
|
|
} else {
|
|
// Referenced WindowSurfaceWayland is already deleted.
|
|
// Do nothing but just release the mDelayedCommitHandle allocated at
|
|
// WindowSurfaceWayland::CommitWaylandBuffer().
|
|
free(aSurface);
|
|
}
|
|
}
|
|
|
|
void
|
|
WindowSurfaceWayland::CommitWaylandBuffer()
|
|
{
|
|
MOZ_ASSERT(mPendingCommit, "Committing empty surface!");
|
|
|
|
wl_surface* waylandSurface = mWindow->GetWaylandSurface();
|
|
if (!waylandSurface) {
|
|
// Target window is not created yet - delay the commit. This can happen only
|
|
// when the window is newly created and there's no active
|
|
// frame callback pending.
|
|
MOZ_ASSERT(!mFrameCallback || waylandSurface != mLastCommittedSurface,
|
|
"Missing wayland surface at frame callback!");
|
|
|
|
// Do nothing if there's already mDelayedCommitHandle pending.
|
|
if (!mDelayedCommitHandle) {
|
|
mDelayedCommitHandle = static_cast<WindowSurfaceWayland**>(
|
|
moz_xmalloc(sizeof(*mDelayedCommitHandle)));
|
|
*mDelayedCommitHandle = this;
|
|
|
|
MessageLoop::current()->PostDelayedTask(
|
|
NewRunnableFunction("WaylandBackBufferCommit",
|
|
&WaylandBufferDelayCommitHandler,
|
|
mDelayedCommitHandle),
|
|
EVENT_LOOP_DELAY);
|
|
}
|
|
return;
|
|
}
|
|
wl_proxy_set_queue((struct wl_proxy *)waylandSurface,
|
|
mWaylandDisplay->GetEventQueue());
|
|
|
|
// We have an active frame callback request so handle it.
|
|
if (mFrameCallback) {
|
|
if (waylandSurface == mLastCommittedSurface) {
|
|
// We have an active frame callback pending from our recent surface.
|
|
// It means we should defer the commit to FrameCallbackHandler().
|
|
return;
|
|
}
|
|
// If our stored wl_surface does not match the actual one it means the frame
|
|
// callback is no longer active and we should release it.
|
|
wl_callback_destroy(mFrameCallback);
|
|
mFrameCallback = nullptr;
|
|
mLastCommittedSurface = nullptr;
|
|
}
|
|
|
|
if (mWaylandBufferFullScreenDamage) {
|
|
LayoutDeviceIntRect rect = mWindow->GetBounds();
|
|
wl_surface_damage(waylandSurface, 0, 0, rect.width, rect.height);
|
|
mWaylandBufferFullScreenDamage = false;
|
|
} else {
|
|
gint scaleFactor = mWindow->GdkScaleFactor();
|
|
for (auto iter = mWaylandBufferDamage.RectIter(); !iter.Done(); iter.Next()) {
|
|
const mozilla::LayoutDeviceIntRect &r = iter.Get();
|
|
// We need to remove the scale factor because the wl_surface_damage
|
|
// also multiplies by current scale factor.
|
|
wl_surface_damage(waylandSurface, r.x/scaleFactor, r.y/scaleFactor,
|
|
r.width/scaleFactor, r.height/scaleFactor);
|
|
}
|
|
}
|
|
|
|
// Clear all back buffer damage as we're committing
|
|
// all requested regions.
|
|
mWaylandBufferDamage.SetEmpty();
|
|
|
|
mFrameCallback = wl_surface_frame(waylandSurface);
|
|
wl_callback_add_listener(mFrameCallback, &frame_listener, this);
|
|
|
|
if (mNeedScaleFactorUpdate || mLastCommittedSurface != waylandSurface) {
|
|
wl_surface_set_buffer_scale(waylandSurface, mWindow->GdkScaleFactor());
|
|
mNeedScaleFactorUpdate = false;
|
|
}
|
|
|
|
mWaylandBuffer->Attach(waylandSurface);
|
|
mLastCommittedSurface = waylandSurface;
|
|
|
|
// There's no pending commit, all changes are sent to compositor.
|
|
mPendingCommit = false;
|
|
}
|
|
|
|
void
|
|
WindowSurfaceWayland::Commit(const LayoutDeviceIntRegion& aInvalidRegion)
|
|
{
|
|
MOZ_ASSERT(mIsMainThread == NS_IsMainThread());
|
|
|
|
// We have new content at mImageSurface - copy data to mWaylandBuffer first.
|
|
if (!mDrawToWaylandBufferDirectly) {
|
|
CommitImageSurfaceToWaylandBuffer(aInvalidRegion);
|
|
}
|
|
|
|
// If we're not at fullscreen damage add drawing area from aInvalidRegion
|
|
if (!mWaylandBufferFullScreenDamage) {
|
|
mWaylandBufferDamage.OrWith(aInvalidRegion);
|
|
}
|
|
|
|
// We're ready to commit.
|
|
mPendingCommit = true;
|
|
CommitWaylandBuffer();
|
|
}
|
|
|
|
void
|
|
WindowSurfaceWayland::FrameCallbackHandler()
|
|
{
|
|
MOZ_ASSERT(mIsMainThread == NS_IsMainThread());
|
|
MOZ_ASSERT(mFrameCallback != nullptr,
|
|
"FrameCallbackHandler() called without valid frame callback!");
|
|
MOZ_ASSERT(mLastCommittedSurface != nullptr,
|
|
"FrameCallbackHandler() called without valid wl_surface!");
|
|
|
|
wl_callback_destroy(mFrameCallback);
|
|
mFrameCallback = nullptr;
|
|
|
|
if (mPendingCommit) {
|
|
CommitWaylandBuffer();
|
|
}
|
|
}
|
|
|
|
void
|
|
WindowSurfaceWayland::DelayedCommitHandler()
|
|
{
|
|
MOZ_ASSERT(mDelayedCommitHandle != nullptr, "Missing mDelayedCommitHandle!");
|
|
|
|
*mDelayedCommitHandle = nullptr;
|
|
free(mDelayedCommitHandle);
|
|
mDelayedCommitHandle = nullptr;
|
|
|
|
if (mPendingCommit) {
|
|
CommitWaylandBuffer();
|
|
}
|
|
}
|
|
|
|
} // namespace widget
|
|
} // namespace mozilla
|