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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "mozilla/layers/NativeLayerWayland.h"
#include <dlfcn.h>
#include <utility>
#include <algorithm>
#include "gfxUtils.h"
#include "nsGtkUtils.h"
#include "GLContextProvider.h"
#include "GLBlitHelper.h"
#include "mozilla/gfx/DataSurfaceHelpers.h"
#include "mozilla/gfx/Logging.h"
#include "mozilla/layers/SurfacePoolWayland.h"
#include "mozilla/StaticPrefs_widget.h"
#include "mozilla/webrender/RenderThread.h"
namespace mozilla::layers {
using gfx::BackendType;
using gfx::DrawTarget;
using gfx::IntPoint;
using gfx::IntRect;
using gfx::IntRegion;
using gfx::IntSize;
using gfx::Matrix4x4;
using gfx::Point;
using gfx::Rect;
using gfx::SamplingFilter;
using gfx::Size;
static const struct wl_callback_listener sFrameListenerNativeLayerWayland = {
NativeLayerWayland::FrameCallbackHandler};
CallbackMultiplexHelper::CallbackMultiplexHelper(CallbackFunc aCallbackFunc,
void* aCallbackData)
: mCallbackFunc(aCallbackFunc), mCallbackData(aCallbackData) {}
void CallbackMultiplexHelper::Callback(uint32_t aTime) {
if (!mActive) {
return;
}
mActive = false;
// This is likely the first of a batch of frame callbacks being processed and
// may trigger the setup of a successive one. In order to avoid complexity,
// defer calling the callback function until we had a chance to process
// all pending frame callbacks.
AddRef();
nsCOMPtr<nsIRunnable> runnable = NewRunnableMethod<uint32_t>(
"layers::CallbackMultiplexHelper::RunCallback", this,
&CallbackMultiplexHelper::RunCallback, aTime);
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToCurrentThreadQueue(
runnable.forget(), EventQueuePriority::Vsync));
}
void CallbackMultiplexHelper::RunCallback(uint32_t aTime) {
mCallbackFunc(mCallbackData, aTime);
Release();
}
/* static */
already_AddRefed<NativeLayerRootWayland>
NativeLayerRootWayland::CreateForMozContainer(MozContainer* aContainer) {
RefPtr<NativeLayerRootWayland> layerRoot =
new NativeLayerRootWayland(aContainer);
return layerRoot.forget();
}
NativeLayerRootWayland::NativeLayerRootWayland(MozContainer* aContainer)
: mMutex("NativeLayerRootWayland"), mContainer(aContainer) {
g_object_ref(mContainer);
}
NativeLayerRootWayland::~NativeLayerRootWayland() {
GdkWindow* gdkWindow = gtk_widget_get_window(GTK_WIDGET(mContainer));
if (gdkWindow) {
GdkFrameClock* frameClock = gdk_window_get_frame_clock(gdkWindow);
g_signal_handlers_disconnect_by_data(frameClock, this);
}
g_object_unref(mContainer);
}
already_AddRefed<NativeLayer> NativeLayerRootWayland::CreateLayer(
const IntSize& aSize, bool aIsOpaque,
SurfacePoolHandle* aSurfacePoolHandle) {
RefPtr<NativeLayer> layer = new NativeLayerWayland(
aSize, aIsOpaque, aSurfacePoolHandle->AsSurfacePoolHandleWayland());
return layer.forget();
}
already_AddRefed<NativeLayer>
NativeLayerRootWayland::CreateLayerForExternalTexture(bool aIsOpaque) {
RefPtr<NativeLayer> layer = new NativeLayerWayland(aIsOpaque);
return layer.forget();
}
void NativeLayerRootWayland::AppendLayer(NativeLayer* aLayer) {
MOZ_RELEASE_ASSERT(false);
MutexAutoLock lock(mMutex);
RefPtr<NativeLayerWayland> layerWayland = aLayer->AsNativeLayerWayland();
MOZ_RELEASE_ASSERT(layerWayland);
mSublayers.AppendElement(layerWayland);
}
void NativeLayerRootWayland::RemoveLayer(NativeLayer* aLayer) {
MOZ_RELEASE_ASSERT(false);
MutexAutoLock lock(mMutex);
RefPtr<NativeLayerWayland> layerWayland = aLayer->AsNativeLayerWayland();
MOZ_RELEASE_ASSERT(layerWayland);
mSublayers.RemoveElement(layerWayland);
}
void NativeLayerRootWayland::SetLayers(
const nsTArray<RefPtr<NativeLayer>>& aLayers) {
MutexAutoLock lock(mMutex);
nsTArray<RefPtr<NativeLayerWayland>> newSublayers(aLayers.Length());
for (const RefPtr<NativeLayer>& sublayer : aLayers) {
RefPtr<NativeLayerWayland> layer = sublayer->AsNativeLayerWayland();
newSublayers.AppendElement(layer);
}
if (newSublayers != mSublayers) {
for (const RefPtr<NativeLayerWayland>& layer : mSublayers) {
if (!newSublayers.Contains(layer)) {
mOldSublayers.AppendElement(layer);
}
}
mSublayers = std::move(newSublayers);
mNewLayers = true;
}
}
bool NativeLayerRootWayland::CommitToScreen() {
MutexAutoLock lock(mMutex);
return CommitToScreen(lock);
}
bool NativeLayerRootWayland::CommitToScreen(const MutexAutoLock& aProofOfLock) {
mFrameInProcess = false;
MozContainerSurfaceLock lock(mContainer);
struct wl_surface* containerSurface = lock.GetSurface();
if (!containerSurface) {
if (!mCallbackRequested) {
RefPtr<NativeLayerRootWayland> self(this);
moz_container_wayland_add_initial_draw_callback_locked(
mContainer, [self]() -> void {
MutexAutoLock lock(self->mMutex);
if (!self->mFrameInProcess) {
self->CommitToScreen(lock);
}
self->mCallbackRequested = false;
});
mCallbackRequested = true;
}
return true;
}
wl_surface* previousSurface = nullptr;
for (RefPtr<NativeLayerWayland>& layer : mSublayers) {
layer->EnsureParentSurface(containerSurface);
if (mNewLayers) {
wl_subsurface_place_above(layer->mWlSubsurface, previousSurface
? previousSurface
: containerSurface);
previousSurface = layer->mWlSurface;
}
MOZ_RELEASE_ASSERT(layer->mTransform.Is2D());
auto transform2D = layer->mTransform.As2D();
Rect surfaceRectClipped =
Rect(0, 0, (float)layer->mSize.width, (float)layer->mSize.height);
surfaceRectClipped =
surfaceRectClipped.Intersect(Rect(layer->mDisplayRect));
transform2D.PostTranslate((float)layer->mPosition.x,
(float)layer->mPosition.y);
surfaceRectClipped = transform2D.TransformBounds(surfaceRectClipped);
if (layer->mClipRect) {
surfaceRectClipped =
surfaceRectClipped.Intersect(Rect(layer->mClipRect.value()));
}
if (roundf(surfaceRectClipped.width) > 0 &&
roundf(surfaceRectClipped.height) > 0) {
layer->SetBufferTransformFlipped(transform2D._11 < 0.0,
transform2D._22 < 0.0);
double bufferScale = moz_container_wayland_get_scale(mContainer);
layer->SetSubsurfacePosition(floor(surfaceRectClipped.x / bufferScale),
floor(surfaceRectClipped.y / bufferScale));
layer->SetViewportDestinationSize(
ceil(surfaceRectClipped.width / bufferScale),
ceil(surfaceRectClipped.height / bufferScale));
auto transform2DInversed = transform2D.Inverse();
Rect bufferClip = transform2DInversed.TransformBounds(surfaceRectClipped);
layer->SetViewportSourceRect(bufferClip);
layer->Commit();
} else {
layer->Unmap();
}
}
if (mNewLayers) {
for (RefPtr<NativeLayerWayland>& layer : mOldSublayers) {
layer->Unmap();
}
mOldSublayers.Clear();
nsCOMPtr<nsIRunnable> updateLayersRunnable = NewRunnableMethod<>(
"layers::NativeLayerRootWayland::UpdateLayersOnMainThread", this,
&NativeLayerRootWayland::UpdateLayersOnMainThread);
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThreadQueue(
updateLayersRunnable.forget(), EventQueuePriority::Normal));
mNewLayers = false;
}
if (containerSurface != mWlSurface) {
if (!mShmBuffer) {
mShmBuffer = widget::WaylandBufferSHM::Create(LayoutDeviceIntSize(1, 1));
mShmBuffer->Clear();
}
mShmBuffer->AttachAndCommit(containerSurface);
mWlSurface = containerSurface;
} else {
wl_surface_commit(containerSurface);
}
wl_display_flush(widget::WaylandDisplayGet()->GetDisplay());
return true;
}
void NativeLayerRootWayland::RequestFrameCallback(CallbackFunc aCallbackFunc,
void* aCallbackData) {
MutexAutoLock lock(mMutex);
mCallbackMultiplexHelper =
new CallbackMultiplexHelper(aCallbackFunc, aCallbackData);
for (const RefPtr<NativeLayerWayland>& layer : mSublayersOnMainThread) {
layer->RequestFrameCallback(mCallbackMultiplexHelper);
}
MozContainerSurfaceLock lockContainer(mContainer);
struct wl_surface* wlSurface = lockContainer.GetSurface();
if (wlSurface) {
wl_surface_commit(wlSurface);
wl_display_flush(widget::WaylandDisplayGet()->GetDisplay());
}
}
static void sAfterFrameClockAfterPaint(
GdkFrameClock* aClock, NativeLayerRootWayland* aNativeLayerRoot) {
aNativeLayerRoot->AfterFrameClockAfterPaint();
}
void NativeLayerRootWayland::AfterFrameClockAfterPaint() {
MutexAutoLock lock(mMutex);
MozContainerSurfaceLock lockContainer(mContainer);
struct wl_surface* containerSurface = lockContainer.GetSurface();
for (const RefPtr<NativeLayerWayland>& layer : mSublayersOnMainThread) {
wl_surface_commit(layer->mWlSurface);
}
if (containerSurface) {
wl_surface_commit(containerSurface);
}
}
void NativeLayerRootWayland::UpdateLayersOnMainThread() {
AssertIsOnMainThread();
MutexAutoLock lock(mMutex);
static auto sGdkWaylandWindowAddCallbackSurface =
(void (*)(GdkWindow*, struct wl_surface*))dlsym(
RTLD_DEFAULT, "gdk_wayland_window_add_frame_callback_surface");
static auto sGdkWaylandWindowRemoveCallbackSurface =
(void (*)(GdkWindow*, struct wl_surface*))dlsym(
RTLD_DEFAULT, "gdk_wayland_window_remove_frame_callback_surface");
MozContainerSurfaceLock lockContainer(mContainer);
struct wl_surface* containerSurface = lockContainer.GetSurface();
GdkWindow* gdkWindow = gtk_widget_get_window(GTK_WIDGET(mContainer));
mSublayersOnMainThread.RemoveElementsBy([&](const auto& layer) {
if (!mSublayers.Contains(layer)) {
if (layer->IsOpaque() &&
StaticPrefs::widget_wayland_opaque_region_enabled_AtStartup() &&
sGdkWaylandWindowAddCallbackSurface && gdkWindow) {
sGdkWaylandWindowRemoveCallbackSurface(gdkWindow, layer->mWlSurface);
wl_compositor* compositor =
widget::WaylandDisplayGet()->GetCompositor();
wl_region* region = wl_compositor_create_region(compositor);
wl_surface_set_opaque_region(layer->mWlSurface, region);
wl_region_destroy(region);
wl_surface_commit(layer->mWlSurface);
}
return true;
}
return false;
});
for (const RefPtr<NativeLayerWayland>& layer : mSublayers) {
if (!mSublayersOnMainThread.Contains(layer)) {
if (layer->IsOpaque() &&
StaticPrefs::widget_wayland_opaque_region_enabled_AtStartup() &&
sGdkWaylandWindowRemoveCallbackSurface && gdkWindow) {
sGdkWaylandWindowAddCallbackSurface(gdkWindow, layer->mWlSurface);
wl_compositor* compositor =
widget::WaylandDisplayGet()->GetCompositor();
wl_region* region = wl_compositor_create_region(compositor);
wl_region_add(region, 0, 0, INT32_MAX, INT32_MAX);
wl_surface_set_opaque_region(layer->mWlSurface, region);
wl_region_destroy(region);
wl_surface_commit(layer->mWlSurface);
}
if (mCallbackMultiplexHelper && mCallbackMultiplexHelper->IsActive()) {
layer->RequestFrameCallback(mCallbackMultiplexHelper);
}
mSublayersOnMainThread.AppendElement(layer);
}
}
if (containerSurface) {
wl_surface_commit(containerSurface);
}
if (!mGdkAfterPaintId && gdkWindow) {
GdkFrameClock* frameClock = gdk_window_get_frame_clock(gdkWindow);
mGdkAfterPaintId =
g_signal_connect_after(frameClock, "after-paint",
G_CALLBACK(sAfterFrameClockAfterPaint), this);
}
}
NativeLayerWayland::NativeLayerWayland(
const IntSize& aSize, bool aIsOpaque,
SurfacePoolHandleWayland* aSurfacePoolHandle)
: mMutex("NativeLayerWayland"),
mSurfacePoolHandle(aSurfacePoolHandle),
mSize(aSize),
mIsOpaque(aIsOpaque) {
MOZ_RELEASE_ASSERT(mSurfacePoolHandle,
"Need a non-null surface pool handle.");
widget::nsWaylandDisplay* waylandDisplay = widget::WaylandDisplayGet();
wl_compositor* compositor = waylandDisplay->GetCompositor();
mWlSurface = wl_compositor_create_surface(compositor);
wl_region* region = wl_compositor_create_region(compositor);
wl_surface_set_input_region(mWlSurface, region);
wl_region_destroy(region);
wp_viewporter* viewporter = waylandDisplay->GetViewporter();
mViewport = wp_viewporter_get_viewport(viewporter, mWlSurface);
}
NativeLayerWayland::NativeLayerWayland(bool aIsOpaque)
: mMutex("NativeLayerWayland"),
mSurfacePoolHandle(nullptr),
mIsOpaque(aIsOpaque) {
MOZ_RELEASE_ASSERT(false); // external image
}
NativeLayerWayland::~NativeLayerWayland() {
MutexAutoLock lock(mMutex);
if (mInProgressBuffer) {
mSurfacePoolHandle->ReturnBufferToPool(mInProgressBuffer);
mInProgressBuffer = nullptr;
}
if (mFrontBuffer) {
mSurfacePoolHandle->ReturnBufferToPool(mFrontBuffer);
mFrontBuffer = nullptr;
}
MozClearPointer(mCallback, wl_callback_destroy);
MozClearPointer(mViewport, wp_viewport_destroy);
MozClearPointer(mWlSubsurface, wl_subsurface_destroy);
MozClearPointer(mWlSurface, wl_surface_destroy);
}
void NativeLayerWayland::AttachExternalImage(
wr::RenderTextureHost* aExternalImage) {
MOZ_RELEASE_ASSERT(false);
}
void NativeLayerWayland::SetSurfaceIsFlipped(bool aIsFlipped) {
MutexAutoLock lock(mMutex);
if (aIsFlipped != mSurfaceIsFlipped) {
mSurfaceIsFlipped = aIsFlipped;
}
}
bool NativeLayerWayland::SurfaceIsFlipped() {
MutexAutoLock lock(mMutex);
return mSurfaceIsFlipped;
}
IntSize NativeLayerWayland::GetSize() {
MutexAutoLock lock(mMutex);
return mSize;
}
void NativeLayerWayland::SetPosition(const IntPoint& aPosition) {
MutexAutoLock lock(mMutex);
if (aPosition != mPosition) {
mPosition = aPosition;
}
}
IntPoint NativeLayerWayland::GetPosition() {
MutexAutoLock lock(mMutex);
return mPosition;
}
void NativeLayerWayland::SetTransform(const Matrix4x4& aTransform) {
MutexAutoLock lock(mMutex);
MOZ_ASSERT(aTransform.IsRectilinear());
if (aTransform != mTransform) {
mTransform = aTransform;
}
}
void NativeLayerWayland::SetSamplingFilter(SamplingFilter aSamplingFilter) {
MutexAutoLock lock(mMutex);
if (aSamplingFilter != mSamplingFilter) {
mSamplingFilter = aSamplingFilter;
}
}
Matrix4x4 NativeLayerWayland::GetTransform() {
MutexAutoLock lock(mMutex);
return mTransform;
}
IntRect NativeLayerWayland::GetRect() {
MutexAutoLock lock(mMutex);
return IntRect(mPosition, mSize);
}
bool NativeLayerWayland::IsOpaque() {
MutexAutoLock lock(mMutex);
return mIsOpaque;
}
void NativeLayerWayland::SetClipRect(const Maybe<IntRect>& aClipRect) {
MutexAutoLock lock(mMutex);
if (aClipRect != mClipRect) {
mClipRect = aClipRect;
}
}
Maybe<IntRect> NativeLayerWayland::ClipRect() {
MutexAutoLock lock(mMutex);
return mClipRect;
}
IntRect NativeLayerWayland::CurrentSurfaceDisplayRect() {
MutexAutoLock lock(mMutex);
return mDisplayRect;
}
RefPtr<DrawTarget> NativeLayerWayland::NextSurfaceAsDrawTarget(
const IntRect& aDisplayRect, const IntRegion& aUpdateRegion,
BackendType aBackendType) {
MutexAutoLock lock(mMutex);
mDisplayRect = IntRect(aDisplayRect);
mDirtyRegion = IntRegion(aUpdateRegion);
MOZ_ASSERT(!mInProgressBuffer);
if (mFrontBuffer && !mFrontBuffer->IsAttached()) {
// the Wayland compositor released the buffer early, we can reuse it
mInProgressBuffer = std::move(mFrontBuffer);
} else {
mInProgressBuffer = mSurfacePoolHandle->ObtainBufferFromPool(mSize);
if (mFrontBuffer) {
HandlePartialUpdate(lock);
mSurfacePoolHandle->ReturnBufferToPool(mFrontBuffer);
}
}
mFrontBuffer = nullptr;
if (!mInProgressBuffer) {
gfxCriticalError() << "Failed to obtain buffer";
wr::RenderThread::Get()->HandleWebRenderError(
wr::WebRenderError::NEW_SURFACE);
return nullptr;
}
return mInProgressBuffer->Lock();
}
Maybe<GLuint> NativeLayerWayland::NextSurfaceAsFramebuffer(
const IntRect& aDisplayRect, const IntRegion& aUpdateRegion,
bool aNeedsDepth) {
MutexAutoLock lock(mMutex);
mDisplayRect = IntRect(aDisplayRect);
mDirtyRegion = IntRegion(aUpdateRegion);
MOZ_ASSERT(!mInProgressBuffer);
if (mFrontBuffer && !mFrontBuffer->IsAttached()) {
// the Wayland compositor released the buffer early, we can reuse it
mInProgressBuffer = std::move(mFrontBuffer);
mFrontBuffer = nullptr;
} else {
mInProgressBuffer = mSurfacePoolHandle->ObtainBufferFromPool(mSize);
}
if (!mInProgressBuffer) {
gfxCriticalError() << "Failed to obtain buffer";
wr::RenderThread::Get()->HandleWebRenderError(
wr::WebRenderError::NEW_SURFACE);
return Nothing();
}
// get the framebuffer before handling partial damage so we don't accidently
// create one without depth buffer
Maybe<GLuint> fbo = mSurfacePoolHandle->GetFramebufferForBuffer(
mInProgressBuffer, aNeedsDepth);
MOZ_RELEASE_ASSERT(fbo, "GetFramebufferForBuffer failed.");
if (mFrontBuffer) {
HandlePartialUpdate(lock);
mSurfacePoolHandle->ReturnBufferToPool(mFrontBuffer);
mFrontBuffer = nullptr;
}
return fbo;
}
void NativeLayerWayland::HandlePartialUpdate(
const MutexAutoLock& aProofOfLock) {
IntRegion copyRegion = IntRegion(mDisplayRect);
copyRegion.SubOut(mDirtyRegion);
if (!copyRegion.IsEmpty()) {
if (mSurfacePoolHandle->gl()) {
mSurfacePoolHandle->gl()->MakeCurrent();
for (auto iter = copyRegion.RectIter(); !iter.Done(); iter.Next()) {
gfx::IntRect r = iter.Get();
Maybe<GLuint> sourceFB =
mSurfacePoolHandle->GetFramebufferForBuffer(mFrontBuffer, false);
Maybe<GLuint> destFB = mSurfacePoolHandle->GetFramebufferForBuffer(
mInProgressBuffer, false);
MOZ_RELEASE_ASSERT(sourceFB && destFB);
mSurfacePoolHandle->gl()->BlitHelper()->BlitFramebufferToFramebuffer(
sourceFB.value(), destFB.value(), r, r, LOCAL_GL_NEAREST);
}
} else {
RefPtr<gfx::DataSourceSurface> dataSourceSurface =
gfx::CreateDataSourceSurfaceFromData(
mSize, mFrontBuffer->GetSurfaceFormat(),
(const uint8_t*)mFrontBuffer->GetImageData(),
mSize.width * BytesPerPixel(mFrontBuffer->GetSurfaceFormat()));
RefPtr<DrawTarget> dt = mInProgressBuffer->Lock();
for (auto iter = copyRegion.RectIter(); !iter.Done(); iter.Next()) {
IntRect r = iter.Get();
dt->CopySurface(dataSourceSurface, r, IntPoint(r.x, r.y));
}
}
}
}
void NativeLayerWayland::NotifySurfaceReady() {
MOZ_ASSERT(!mFrontBuffer);
MOZ_ASSERT(mInProgressBuffer);
mFrontBuffer = mInProgressBuffer;
mInProgressBuffer = nullptr;
}
void NativeLayerWayland::DiscardBackbuffers() {}
void NativeLayerWayland::Commit() {
MutexAutoLock lock(mMutex);
if (mDirtyRegion.IsEmpty() && mHasBufferAttached) {
wl_surface_commit(mWlSurface);
return;
}
for (auto iter = mDirtyRegion.RectIter(); !iter.Done(); iter.Next()) {
IntRect r = iter.Get();
wl_surface_damage_buffer(mWlSurface, r.x, r.y, r.width, r.height);
}
MOZ_ASSERT(mFrontBuffer);
mFrontBuffer->AttachAndCommit(mWlSurface);
mHasBufferAttached = true;
mDirtyRegion.SetEmpty();
}
void NativeLayerWayland::Unmap() {
MutexAutoLock lock(mMutex);
if (!mHasBufferAttached) {
return;
}
wl_surface_attach(mWlSurface, nullptr, 0, 0);
wl_surface_commit(mWlSurface);
mHasBufferAttached = false;
}
void NativeLayerWayland::EnsureParentSurface(wl_surface* aParentSurface) {
MutexAutoLock lock(mMutex);
if (aParentSurface != mParentWlSurface) {
MozClearPointer(mWlSubsurface, wl_subsurface_destroy);
mSubsurfacePosition = IntPoint(0, 0);
if (aParentSurface) {
wl_subcompositor* subcompositor =
widget::WaylandDisplayGet()->GetSubcompositor();
mWlSubsurface = wl_subcompositor_get_subsurface(subcompositor, mWlSurface,
aParentSurface);
}
mParentWlSurface = aParentSurface;
}
}
void NativeLayerWayland::SetBufferTransformFlipped(bool aFlippedX,
bool aFlippedY) {
MutexAutoLock lock(mMutex);
if (aFlippedX == mBufferTransformFlippedX &&
aFlippedY == mBufferTransformFlippedY) {
return;
}
mBufferTransformFlippedX = aFlippedX;
mBufferTransformFlippedY = aFlippedY;
if (mBufferTransformFlippedY) {
if (mBufferTransformFlippedX) {
wl_surface_set_buffer_transform(mWlSurface, WL_OUTPUT_TRANSFORM_180);
} else {
wl_surface_set_buffer_transform(mWlSurface,
WL_OUTPUT_TRANSFORM_FLIPPED_180);
}
} else {
if (mBufferTransformFlippedX) {
wl_surface_set_buffer_transform(mWlSurface, WL_OUTPUT_TRANSFORM_FLIPPED);
} else {
wl_surface_set_buffer_transform(mWlSurface, WL_OUTPUT_TRANSFORM_NORMAL);
}
}
}
void NativeLayerWayland::SetSubsurfacePosition(int aX, int aY) {
MutexAutoLock lock(mMutex);
if ((aX == mSubsurfacePosition.x && aY == mSubsurfacePosition.y) ||
!mWlSubsurface) {
return;
}
mSubsurfacePosition.x = aX;
mSubsurfacePosition.y = aY;
wl_subsurface_set_position(mWlSubsurface, mSubsurfacePosition.x,
mSubsurfacePosition.y);
}
void NativeLayerWayland::SetViewportSourceRect(const Rect aSourceRect) {
MutexAutoLock lock(mMutex);
Rect bufferRect = Rect(0, 0, mSize.width, mSize.height);
Rect sourceRect = aSourceRect.Intersect(bufferRect);
if (mViewportSourceRect == sourceRect) {
return;
}
mViewportSourceRect = sourceRect;
wp_viewport_set_source(mViewport, wl_fixed_from_double(mViewportSourceRect.x),
wl_fixed_from_double(mViewportSourceRect.y),
wl_fixed_from_double(mViewportSourceRect.width),
wl_fixed_from_double(mViewportSourceRect.height));
}
void NativeLayerWayland::SetViewportDestinationSize(int aWidth, int aHeight) {
MutexAutoLock lock(mMutex);
if (aWidth == mViewportDestinationSize.width &&
aHeight == mViewportDestinationSize.height) {
return;
}
mViewportDestinationSize.width = aWidth;
mViewportDestinationSize.height = aHeight;
wp_viewport_set_destination(mViewport, mViewportDestinationSize.width,
mViewportDestinationSize.height);
}
void NativeLayerWayland::RequestFrameCallback(
const RefPtr<CallbackMultiplexHelper>& aMultiplexHelper) {
MutexAutoLock lock(mMutex);
MOZ_ASSERT(aMultiplexHelper->IsActive());
// Avoid piling up old helpers if this surface does not receive callbacks
// for a longer time
mCallbackMultiplexHelpers.RemoveElementsBy(
[&](const auto& object) { return !object->IsActive(); });
mCallbackMultiplexHelpers.AppendElement(aMultiplexHelper);
if (!mCallback) {
mCallback = wl_surface_frame(mWlSurface);
wl_callback_add_listener(mCallback, &sFrameListenerNativeLayerWayland,
this);
wl_surface_commit(mWlSurface);
}
}
void NativeLayerWayland::FrameCallbackHandler(wl_callback* aCallback,
uint32_t aTime) {
MutexAutoLock lock(mMutex);
MOZ_RELEASE_ASSERT(aCallback == mCallback);
MozClearPointer(mCallback, wl_callback_destroy);
for (const RefPtr<CallbackMultiplexHelper>& callbackMultiplexHelper :
mCallbackMultiplexHelpers) {
callbackMultiplexHelper->Callback(aTime);
}
mCallbackMultiplexHelpers.Clear();
}
/* static */
void NativeLayerWayland::FrameCallbackHandler(void* aData,
wl_callback* aCallback,
uint32_t aTime) {
auto surface = reinterpret_cast<NativeLayerWayland*>(aData);
surface->FrameCallbackHandler(aCallback, aTime);
}
} // namespace mozilla::layers