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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/exo/surface.h"
#include <utility>
#include "ash/display/output_protection_delegate.h"
#include "ash/public/cpp/window_properties.h"
#include "ash/wm/desks/desks_util.h"
#include "base/containers/adapters.h"
#include "base/functional/callback_helpers.h"
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "base/notreached.h"
#include "base/numerics/safe_conversions.h"
#include "base/ranges/algorithm.h"
#include "base/strings/stringprintf.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/traced_value.h"
#include "build/build_config.h"
#include "components/exo/buffer.h"
#include "components/exo/frame_sink_resource_manager.h"
#include "components/exo/layer_tree_frame_sink_holder.h"
#include "components/exo/shell_surface_util.h"
#include "components/exo/surface_delegate.h"
#include "components/exo/surface_observer.h"
#include "components/exo/window_properties.h"
#include "components/exo/wm_helper.h"
#include "components/viz/common/quads/compositor_frame.h"
#include "components/viz/common/quads/compositor_render_pass.h"
#include "components/viz/common/quads/draw_quad.h"
#include "components/viz/common/quads/shared_quad_state.h"
#include "components/viz/common/quads/solid_color_draw_quad.h"
#include "components/viz/common/quads/surface_draw_quad.h"
#include "components/viz/common/quads/texture_draw_quad.h"
#include "components/viz/common/quads/tile_draw_quad.h"
#include "components/viz/common/resources/resource_id.h"
#include "media/media_buildflags.h"
#include "third_party/skia/include/core/SkColor.h"
#include "third_party/skia/include/core/SkPath.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/client/drag_drop_delegate.h"
#include "ui/aura/window_delegate.h"
#include "ui/aura/window_occlusion_tracker.h"
#include "ui/aura/window_targeter.h"
#include "ui/base/class_property.h"
#include "ui/base/cursor/cursor.h"
#include "ui/base/cursor/mojom/cursor_type.mojom-shared.h"
#include "ui/base/hit_test.h"
#include "ui/compositor/layer.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"
#include "ui/events/event.h"
#include "ui/gfx/buffer_format_util.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/color_space.h"
#include "ui/gfx/geometry/dip_util.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/point_conversions.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/geometry/skia_conversions.h"
#include "ui/gfx/geometry/transform_util.h"
#include "ui/gfx/geometry/vector2d_f.h"
#include "ui/gfx/gpu_fence.h"
#include "ui/gfx/gpu_memory_buffer.h"
#include "ui/gfx/presentation_feedback.h"
#include "ui/views/widget/widget.h"
DEFINE_UI_CLASS_PROPERTY_TYPE(exo::Surface*)
namespace exo {
BASE_FEATURE(kExoPerSurfaceOcclusion,
"ExoPerSurfaceOcclusion",
base::FEATURE_ENABLED_BY_DEFAULT);
namespace {
bool IsExoOcclusionEnabled() {
static bool is_enabled =
base::FeatureList::IsEnabled(kExoPerSurfaceOcclusion);
return is_enabled;
}
// A property key containing the surface that is associated with
// window. If unset, no surface is associated with window.
DEFINE_UI_CLASS_PROPERTY_KEY(Surface*, kSurfaceKey, nullptr)
// A property key to store whether the surface should only consume
// stylus input events.
DEFINE_UI_CLASS_PROPERTY_KEY(bool, kStylusOnlyKey, false)
// Helper function that returns an iterator to the first entry in |list|
// with |key|.
template <typename T, typename U>
typename T::iterator FindListEntry(T& list, U key) {
return base::ranges::find(list, key, &T::value_type::first);
}
// Helper function that returns true if |list| contains an entry with |key|.
template <typename T, typename U>
bool ListContainsEntry(T& list, U key) {
return FindListEntry(list, key) != list.end();
}
bool FormatHasAlpha(gfx::BufferFormat format) {
return gfx::AlphaBitsForBufferFormat(format) != 0;
}
Transform InvertY(Transform transform) {
switch (transform) {
case Transform::NORMAL:
return Transform::FLIPPED_ROTATE_180;
case Transform::ROTATE_90:
return Transform::FLIPPED_ROTATE_270;
case Transform::ROTATE_180:
return Transform::FLIPPED;
case Transform::ROTATE_270:
return Transform::FLIPPED_ROTATE_90;
case Transform::FLIPPED:
return Transform::ROTATE_180;
case Transform::FLIPPED_ROTATE_90:
return Transform::ROTATE_270;
case Transform::FLIPPED_ROTATE_180:
return Transform::NORMAL;
case Transform::FLIPPED_ROTATE_270:
return Transform::ROTATE_90;
}
NOTREACHED();
}
// Returns a gfx::Transform that can transform a (0,0 1x1) rect to the same
// rect while rotate/flip the contents about (0.5, 0.5) origin. It's equivalent
// to rotating/flipping about (0, 0) origin then translating by
// (0 or 1, 0 or 1). Note that the rotations are counter-clockwise.
gfx::Transform ToBufferTransformMatrix(Transform transform, bool invert_y) {
switch (invert_y ? InvertY(transform) : transform) {
case Transform::NORMAL:
return gfx::Transform();
case Transform::ROTATE_90:
return gfx::Transform::Affine(0, -1, 1, 0, 0, 1);
case Transform::ROTATE_180:
return gfx::Transform::Affine(-1, 0, 0, -1, 1, 1);
case Transform::ROTATE_270:
return gfx::Transform::Affine(0, 1, -1, 0, 1, 0);
case Transform::FLIPPED:
return gfx::Transform::Affine(-1, 0, 0, 1, 1, 0);
case Transform::FLIPPED_ROTATE_90:
return gfx::Transform::Affine(0, 1, 1, 0, 0, 0);
case Transform::FLIPPED_ROTATE_180:
return gfx::Transform::Affine(1, 0, 0, -1, 0, 1);
case Transform::FLIPPED_ROTATE_270:
return gfx::Transform::Affine(0, -1, -1, 0, 1, 1);
}
NOTREACHED();
}
// Helper function that returns |size| after adjusting for |transform|.
gfx::Size ToTransformedSize(const gfx::Size& size, Transform transform) {
switch (transform) {
case Transform::NORMAL:
case Transform::ROTATE_180:
case Transform::FLIPPED:
case Transform::FLIPPED_ROTATE_180:
return size;
case Transform::ROTATE_90:
case Transform::ROTATE_270:
case Transform::FLIPPED_ROTATE_90:
case Transform::FLIPPED_ROTATE_270:
return gfx::Size(size.height(), size.width());
}
NOTREACHED();
}
bool IsDeskContainer(aura::Window* container) {
return ash::desks_util::IsDeskContainer(container);
}
class CustomWindowDelegate : public aura::WindowDelegate {
public:
explicit CustomWindowDelegate(Surface* surface) : surface_(surface) {}
CustomWindowDelegate(const CustomWindowDelegate&) = delete;
CustomWindowDelegate& operator=(const CustomWindowDelegate&) = delete;
~CustomWindowDelegate() override {}
// Overridden from aura::WindowDelegate:
gfx::Size GetMinimumSize() const override { return gfx::Size(); }
gfx::Size GetMaximumSize() const override { return gfx::Size(); }
void OnBoundsChanged(const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) override {}
gfx::NativeCursor GetCursor(const gfx::Point& point) override {
views::Widget* widget =
views::Widget::GetTopLevelWidgetForNativeView(surface_->window());
if (widget)
return widget->GetNativeWindow()->GetCursor(point /* not used */);
return ui::mojom::CursorType::kNull;
}
int GetNonClientComponent(const gfx::Point& point) const override {
views::Widget* widget =
views::Widget::GetTopLevelWidgetForNativeView(surface_->window());
if (widget && IsDeskContainer(widget->GetNativeView()->parent()) &&
surface_->HitTest(point)) {
return HTCLIENT;
}
return HTNOWHERE;
}
bool ShouldDescendIntoChildForEventHandling(
aura::Window* child,
const gfx::Point& location) override {
return true;
}
bool CanFocus() override { return true; }
void OnCaptureLost() override {}
void OnPaint(const ui::PaintContext& context) override {}
void OnDeviceScaleFactorChanged(float old_device_scale_factor,
float new_device_scale_factor) override {
surface_->OnScaleFactorChanged(old_device_scale_factor,
new_device_scale_factor);
}
void OnWindowDestroying(aura::Window* window) override {}
void OnWindowDestroyed(aura::Window* window) override { delete this; }
void OnWindowTargetVisibilityChanged(bool visible) override {}
void OnWindowOcclusionChanged(
aura::Window::OcclusionState old_occlusion_state,
aura::Window::OcclusionState new_occlusion_state) override {
surface_->OnWindowOcclusionChanged(old_occlusion_state,
new_occlusion_state);
}
bool HasHitTestMask() const override { return true; }
void GetHitTestMask(SkPath* mask) const override {
surface_->GetHitTestMask(mask);
}
void OnKeyEvent(ui::KeyEvent* event) override {
// Propagates the key event upto the top-level views Widget so that we can
// trigger proper events in the views/ash level there. Event handling for
// Surfaces is done in a post event handler in keyboard.cc.
views::Widget* widget =
views::Widget::GetTopLevelWidgetForNativeView(surface_->window());
if (widget)
widget->OnKeyEvent(event);
}
private:
const raw_ptr<Surface> surface_;
};
class CustomWindowTargeter : public aura::WindowTargeter {
public:
CustomWindowTargeter() {}
CustomWindowTargeter(const CustomWindowTargeter&) = delete;
CustomWindowTargeter& operator=(const CustomWindowTargeter&) = delete;
~CustomWindowTargeter() override {}
// Overridden from aura::WindowTargeter:
bool EventLocationInsideBounds(aura::Window* window,
const ui::LocatedEvent& event) const override {
Surface* surface = Surface::AsSurface(window);
if (!surface || !surface->IsInputEnabled(surface))
return false;
gfx::Point local_point =
ConvertEventLocationToWindowCoordinates(window, event);
return surface->HitTest(local_point);
}
};
const std::string& GetApplicationId(aura::Window* window) {
static const std::string empty_app_id;
if (!window)
return empty_app_id;
while (window) {
const std::string* app_id = exo::GetShellApplicationId(window);
if (app_id)
return *app_id;
window = window->parent();
}
return empty_app_id;
}
int surface_id = 0;
void ImmediateExplicitRelease(
Buffer::PerCommitExplicitReleaseCallback callback) {
if (callback)
std::move(callback).Run(/*release_fence=*/gfx::GpuFenceHandle());
}
} // namespace
DEFINE_OWNED_UI_CLASS_PROPERTY_KEY(std::string, kClientSurfaceIdKey, nullptr)
// A property key to store the window session Id set by client or full_restore
// component.
DEFINE_UI_CLASS_PROPERTY_KEY(int32_t, kWindowSessionId, -1)
ScopedSurface::ScopedSurface(Surface* surface, SurfaceObserver* observer)
: surface_(surface), observer_(observer) {
surface_->AddSurfaceObserver(observer_);
}
ScopedSurface::~ScopedSurface() {
surface_->RemoveSurfaceObserver(observer_);
}
////////////////////////////////////////////////////////////////////////////////
// Surface, public:
Surface::Surface()
: window_(
std::make_unique<aura::Window>(new CustomWindowDelegate(this),
aura::client::WINDOW_TYPE_CONTROL)) {
window_->SetName(base::StringPrintf("ExoSurface-%d", surface_id++));
window_->SetProperty(kSurfaceKey, this);
window_->Init(ui::LAYER_NOT_DRAWN);
window_->SetEventTargeter(std::make_unique<CustomWindowTargeter>());
window_->set_owned_by_parent(false);
}
Surface::~Surface() {
for (SurfaceObserver& observer : observers_)
observer.OnSurfaceDestroying(this);
// Call all frame callbacks with a null frame time to indicate that they
// have been cancelled.
state_.frame_callbacks.splice(state_.frame_callbacks.end(),
cached_state_.frame_callbacks);
state_.frame_callbacks.splice(state_.frame_callbacks.end(),
pending_state_.frame_callbacks);
for (const auto& frame_callback : state_.frame_callbacks)
frame_callback.Run(base::TimeTicks());
// Call all presentation callbacks with a null presentation time to indicate
// that they have been cancelled.
state_.presentation_callbacks.splice(state_.presentation_callbacks.end(),
cached_state_.presentation_callbacks);
state_.presentation_callbacks.splice(state_.presentation_callbacks.end(),
pending_state_.presentation_callbacks);
for (const auto& presentation_callback : state_.presentation_callbacks)
presentation_callback.Run(gfx::PresentationFeedback());
// Call explicit release on all explicit release callbacks that have been
// committed.
ImmediateExplicitRelease(
std::move(state_.per_commit_explicit_release_callback_));
ImmediateExplicitRelease(
std::move(cached_state_.per_commit_explicit_release_callback_));
// Do not reset the DragDropDelegate in order to handle exit upon deletion.
}
// static
Surface* Surface::AsSurface(const aura::Window* window) {
return window->GetProperty(kSurfaceKey);
}
std::vector<raw_ptr<aura::Window, VectorExperimental>>
Surface::GetChildWindows() const {
std::vector<raw_ptr<aura::Window, VectorExperimental>> children;
for (const auto& [sub_surface, _] : sub_surfaces_) {
children.push_back(sub_surface->window());
}
return children;
}
void Surface::Attach(Buffer* buffer) {
Attach(buffer, gfx::Vector2d());
}
void Surface::Attach(Buffer* buffer, gfx::Vector2d offset) {
TRACE_EVENT2("exo", "Surface::Attach", "buffer_id",
buffer ? buffer->GetBufferId() : nullptr, "app_id",
GetApplicationId(window_.get()));
has_pending_contents_ = true;
if (!pending_state_.buffer.has_value())
pending_state_.buffer.emplace();
pending_state_.buffer->Reset(buffer ? buffer->AsWeakPtr()
: base::WeakPtr<Buffer>());
pending_state_.basic_state.offset = offset;
}
gfx::Vector2d Surface::GetBufferOffset() {
return state_.basic_state.offset;
}
bool Surface::HasPendingAttachedBuffer() const {
return pending_state_.buffer.has_value() &&
pending_state_.buffer->buffer() != nullptr;
}
void Surface::Damage(const gfx::Rect& damage) {
TRACE_EVENT1("exo", "Surface::Damage", "damage", damage.ToString());
gfx::Rect t_damage = damage;
if (t_damage.width() == 0x7FFFFFFF) {
t_damage.set_width(0x7FFFFFFE);
}
if (t_damage.height() == 0x7FFFFFFF) {
t_damage.set_height(0x7FFFFFFE);
}
// SkRegion forbids 0x7FFFFFFF (INT32_MAX) as width or height, see
// SkRegion_kRunTypeSentinel, and would mark the resulting region from the
// union below as empty. See https://crbug.com/1463905
gfx::Rect intersected_damage = gfx::Rect(0x7FFFFFFE, 0x7FFFFFFE);
intersected_damage.Intersect(t_damage);
pending_state_.damage.Union(intersected_damage);
}
void Surface::RequestFrameCallback(const FrameCallback& callback) {
TRACE_EVENT0("exo", "Surface::RequestFrameCallback");
pending_state_.frame_callbacks.push_back(callback);
}
void Surface::RequestPresentationCallback(
const PresentationCallback& callback) {
TRACE_EVENT0("exo", "Surface::RequestPresentationCallback");
pending_state_.presentation_callbacks.push_back(callback);
}
void Surface::SetOpaqueRegion(const cc::Region& region) {
TRACE_EVENT1("exo", "Surface::SetOpaqueRegion", "region", region.ToString());
pending_state_.basic_state.opaque_region = region;
}
void Surface::SetInputRegion(const cc::Region& region) {
TRACE_EVENT1("exo", "Surface::SetInputRegion", "region", region.ToString());
pending_state_.basic_state.input_region = region;
}
void Surface::ResetInputRegion() {
TRACE_EVENT0("exo", "Surface::ResetInputRegion");
pending_state_.basic_state.input_region = std::nullopt;
}
void Surface::SetInputOutset(int outset) {
TRACE_EVENT1("exo", "Surface::SetInputOutset", "outset", outset);
pending_state_.basic_state.input_outset = outset;
}
void Surface::SetBufferScale(float scale) {
TRACE_EVENT1("exo", "Surface::SetBufferScale", "scale", scale);
pending_state_.basic_state.buffer_scale = scale;
}
void Surface::SetBufferTransform(Transform transform) {
TRACE_EVENT1("exo", "Surface::SetBufferTransform", "transform",
static_cast<int>(transform));
pending_state_.basic_state.buffer_transform = transform;
}
void Surface::AddSubSurface(Surface* sub_surface) {
if (sub_surface->is_augmented()) {
auto* render_layer = sub_surface;
DCHECK(!render_layer->window()->parent());
DCHECK(!ListContainsEntry(render_layers_, render_layer));
render_layers_.emplace_back(render_layer, gfx::PointF());
return;
}
TRACE_EVENT1("exo", "Surface::AddSubSurface", "sub_surface",
sub_surface->AsTracedValue());
DCHECK(!is_augmented());
DCHECK(!sub_surface->window()->parent());
sub_surface->window()->SetBounds(
gfx::Rect(sub_surface->window()->bounds().size()));
window_->AddChild(sub_surface->window());
DCHECK(!ListContainsEntry(pending_sub_surfaces_, sub_surface));
pending_sub_surfaces_.push_back(std::make_pair(sub_surface, gfx::PointF()));
sub_surfaces_.push_back(std::make_pair(sub_surface, gfx::PointF()));
sub_surfaces_changed_ = true;
// Propagate the kSkipImeProcessing property to the new child.
if (window_->GetProperty(aura::client::kSkipImeProcessing)) {
sub_surface->window()->SetProperty(aura::client::kSkipImeProcessing, true);
}
// The shell might have not be added to the root yet.
if (window_->GetRootWindow()) {
auto display =
display::Screen::GetScreen()->GetDisplayNearestWindow(window_.get());
sub_surface->UpdateDisplay(display::kInvalidDisplayId, display.id());
}
}
void Surface::OnNewOutputAdded() {
if (delegate_)
delegate_->OnNewOutputAdded();
}
void Surface::RemoveSubSurface(Surface* sub_surface) {
if (sub_surface->is_augmented()) {
auto* render_layer = sub_surface;
DCHECK(ListContainsEntry(render_layers_, render_layer));
auto it = FindListEntry(render_layers_, render_layer);
render_layers_.erase(it);
// Force recreating resources when the render_layer is added to a tree
// again.
render_layer->SurfaceHierarchyResourcesLost();
return;
}
TRACE_EVENT1("exo", "Surface::RemoveSubSurface", "sub_surface",
sub_surface->AsTracedValue());
if (sub_surface->window()->IsVisible()) {
sub_surface->window()->Hide();
}
if (sub_surface->window()->parent() == window_.get()) {
window_->RemoveChild(sub_surface->window());
}
DCHECK(ListContainsEntry(pending_sub_surfaces_, sub_surface));
pending_sub_surfaces_.erase(
FindListEntry(pending_sub_surfaces_, sub_surface));
DCHECK(ListContainsEntry(sub_surfaces_, sub_surface));
auto it = FindListEntry(sub_surfaces_, sub_surface);
// Removing a non augmented subsurface extends the damage to the removed
// subsurface.
if (it != sub_surfaces_.end()) {
auto extended_damage = gfx::RectF(it->second, it->first->content_size());
if (extended_damage_dp_.has_value()) {
extended_damage_dp_->Union(extended_damage);
} else {
extended_damage_dp_.emplace(extended_damage);
}
}
sub_surfaces_.erase(it);
// Force recreating resources when the surface is added to a tree again.
sub_surface->SurfaceHierarchyResourcesLost();
sub_surfaces_changed_ = true;
}
void Surface::SetSubSurfacePosition(Surface* sub_surface,
const gfx::PointF& position) {
if (sub_surface->is_augmented()) {
auto* render_layer = sub_surface;
auto it = FindListEntry(render_layers_, render_layer);
DCHECK(it != render_layers_.end());
if (it->second == position) {
return;
}
it->second = position;
return;
}
TRACE_EVENT2("exo", "Surface::SetSubSurfacePosition", "sub_surface",
sub_surface->AsTracedValue(), "position", position.ToString());
auto it = FindListEntry(pending_sub_surfaces_, sub_surface);
DCHECK(it != pending_sub_surfaces_.end());
if (it->second == position) {
return;
}
it->second = position;
sub_surfaces_changed_ = true;
}
void Surface::PlaceSubSurfaceAbove(Surface* sub_surface, Surface* reference) {
if (sub_surface == reference) {
DLOG(WARNING) << "Client tried to place sub-surface above itself";
return;
}
if (sub_surface->is_augmented() != reference->is_augmented() &&
reference != this) {
DLOG(WARNING) << "Client tried to stack a augmented-surface relative to a "
"sub-surface";
return;
}
if (sub_surface->is_augmented()) {
DoPlaceAboveOrBelow(sub_surface, reference, render_layers_,
/*place_above=*/true);
} else {
TRACE_EVENT2("exo", "Surface::PlaceSubSurfaceAbove", "sub_surface",
sub_surface->AsTracedValue(), "reference",
reference->AsTracedValue());
if (DoPlaceAboveOrBelow(sub_surface, reference, pending_sub_surfaces_,
/*place_above=*/true)) {
sub_surfaces_changed_ = true;
}
}
}
void Surface::PlaceSubSurfaceBelow(Surface* sub_surface, Surface* sibling) {
if (sub_surface == sibling) {
DLOG(WARNING) << "Client tried to place sub-surface below itself";
return;
}
if (sub_surface->is_augmented() != sibling->is_augmented()) {
DLOG(WARNING) << "Client tried to stack a augmented-surface relative to a "
"sub-surface";
return;
}
if (sub_surface->is_augmented()) {
DoPlaceAboveOrBelow(sub_surface, sibling, render_layers_,
/*place_above=*/false);
} else {
TRACE_EVENT2("exo", "Surface::PlaceSubSurfaceBelow", "sub_surface",
sub_surface->AsTracedValue(), "sibling",
sibling->AsTracedValue());
if (DoPlaceAboveOrBelow(sub_surface, sibling, pending_sub_surfaces_,
/*place_above=*/false)) {
sub_surfaces_changed_ = true;
}
}
}
bool Surface::DoPlaceAboveOrBelow(Surface* child,
Surface* reference,
SubSurfaceEntryList& list,
bool place_above) {
auto position_it = (place_above && reference == this)
? list.begin()
: FindListEntry(list, reference);
if (position_it == list.end()) {
LOG(WARNING) << "Client tried place a sub-surface "
<< (place_above ? "above" : "below")
<< " an invalid reference";
return false;
}
DCHECK(ListContainsEntry(list, child));
auto it = FindListEntry(list, child);
if (place_above && reference != this) {
++position_it;
} else {
--position_it;
}
// If |child| is already immediately at the right position, do nothing.
if (it == position_it) {
return false;
}
if (!place_above) {
++position_it;
}
list.splice(position_it, list, it);
return true;
}
void Surface::OnSubSurfaceCommit() {
if (delegate_)
delegate_->OnSurfaceCommit();
}
void Surface::SetRoundedCorners(const gfx::RRectF& rounded_corners_bounds,
bool commit_override) {
TRACE_EVENT1("exo", "Surface::SetRoundedCorner", "corners",
rounded_corners_bounds.ToString());
if (rounded_corners_bounds != pending_state_.rounded_corners_bounds) {
has_pending_contents_ = true;
pending_state_.rounded_corners_bounds = rounded_corners_bounds;
}
if (commit_override &&
rounded_corners_bounds != state_.rounded_corners_bounds) {
state_.rounded_corners_bounds = rounded_corners_bounds;
}
}
void Surface::SetOverlayPriorityHint(OverlayPriority hint) {
TRACE_EVENT0("exo", "Surface::SetOverlayPriorityHint");
pending_state_.overlay_priority_hint = hint;
}
void Surface::SetClipRect(const std::optional<gfx::RectF>& clip_rect) {
TRACE_EVENT1("exo", "Surface::SetClipRect", "clip_rect",
(clip_rect ? clip_rect->ToString() : "nullopt"));
if (pending_state_.clip_rect == clip_rect) {
return;
}
has_pending_contents_ = true;
pending_state_.clip_rect = clip_rect;
}
void Surface::SetFrameTraceId(int64_t frame_trace_id) {
pending_state_.frame_trace_id = frame_trace_id;
}
void Surface::SetSurfaceTransform(const gfx::Transform& transform) {
TRACE_EVENT1("exo", "Surface::SetSurfaceTransform", "transform",
transform.ToString());
if (pending_state_.surface_transform != transform) {
has_pending_contents_ = true;
pending_state_.surface_transform = transform;
}
}
void Surface::SetBackgroundColor(std::optional<SkColor4f> background_color) {
TRACE_EVENT0("exo", "Surface::SetBackgroundColor");
pending_state_.basic_state.background_color = background_color;
}
void Surface::SetViewport(const gfx::SizeF& viewport) {
TRACE_EVENT1("exo", "Surface::SetViewport", "viewport", viewport.ToString());
pending_state_.basic_state.viewport = viewport;
}
void Surface::SetCrop(const gfx::RectF& crop) {
TRACE_EVENT1("exo", "Surface::SetCrop", "crop", crop.ToString());
pending_state_.basic_state.crop = crop;
}
void Surface::SetOnlyVisibleOnSecureOutput(bool only_visible_on_secure_output) {
TRACE_EVENT1("exo", "Surface::SetOnlyVisibleOnSecureOutput",
"only_visible_on_secure_output", only_visible_on_secure_output);
pending_state_.basic_state.only_visible_on_secure_output =
only_visible_on_secure_output;
}
void Surface::SetBlendMode(SkBlendMode blend_mode) {
TRACE_EVENT1("exo", "Surface::SetBlendMode", "blend_mode",
static_cast<int>(blend_mode));
pending_state_.basic_state.blend_mode = blend_mode;
}
void Surface::SetAlpha(float alpha) {
TRACE_EVENT1("exo", "Surface::SetAlpha", "alpha", alpha);
pending_state_.basic_state.alpha = alpha;
}
void Surface::SetFrame(SurfaceFrameType type) {
TRACE_EVENT1("exo", "Surface::SetFrame", "type", static_cast<uint32_t>(type));
if (delegate_)
delegate_->OnSetFrame(type);
}
void Surface::SetServerStartResize() {
if (delegate_)
delegate_->OnSetServerStartResize();
SetFrame(SurfaceFrameType::SHADOW);
}
void Surface::SetFrameColors(SkColor active_color, SkColor inactive_color) {
TRACE_EVENT2("exo", "Surface::SetFrameColors", "active_color", active_color,
"inactive_color", inactive_color);
if (delegate_)
delegate_->OnSetFrameColors(active_color, inactive_color);
}
void Surface::SetStartupId(const char* startup_id) {
TRACE_EVENT1("exo", "Surface::SetStartupId", "startup_id", startup_id);
if (delegate_)
delegate_->OnSetStartupId(startup_id);
}
void Surface::SetApplicationId(const char* application_id) {
TRACE_EVENT1("exo", "Surface::SetApplicationId", "application_id",
application_id);
if (delegate_)
delegate_->OnSetApplicationId(application_id);
}
void Surface::SetUseImmersiveForFullscreen(bool value) {
TRACE_EVENT1("exo", "Surface::SetUseImmersiveForFullscreen", "value", value);
if (delegate_)
delegate_->SetUseImmersiveForFullscreen(value);
}
void Surface::ShowSnapPreviewToSecondary() {
if (delegate_)
delegate_->ShowSnapPreviewToSecondary();
}
void Surface::ShowSnapPreviewToPrimary() {
if (delegate_)
delegate_->ShowSnapPreviewToPrimary();
}
void Surface::HideSnapPreview() {
if (delegate_)
delegate_->HideSnapPreview();
}
void Surface::SetSnapPrimary(float snap_ratio) {
if (delegate_)
delegate_->SetSnapPrimary(snap_ratio);
}
void Surface::SetSnapSecondary(float snap_ratio) {
if (delegate_)
delegate_->SetSnapSecondary(snap_ratio);
}
void Surface::UnsetSnap() {
if (delegate_)
delegate_->UnsetSnap();
}
void Surface::SetCanGoBack() {
if (delegate_)
delegate_->SetCanGoBack();
}
void Surface::UnsetCanGoBack() {
if (delegate_)
delegate_->UnsetCanGoBack();
}
void Surface::SetColorSpace(gfx::ColorSpace color_space) {
TRACE_EVENT1("exo", "Surface::SetColorSpace", "color_space",
color_space.ToString());
pending_state_.basic_state.color_space = color_space;
}
void Surface::SetParent(Surface* parent, const gfx::Point& position) {
TRACE_EVENT2("exo", "Surface::SetParent", "parent", !!parent, "position",
position.ToString());
if (delegate_)
delegate_->OnSetParent(parent, position);
}
void Surface::RequestActivation() {
TRACE_EVENT0("exo", "Surface::RequestActivation");
if (delegate_)
delegate_->OnActivationRequested();
}
void Surface::SetClientSurfaceId(const char* client_surface_id) {
if (client_surface_id && strlen(client_surface_id) > 0)
window_->SetProperty(kClientSurfaceIdKey,
new std::string(client_surface_id));
else
window_->ClearProperty(kClientSurfaceIdKey);
}
std::string Surface::GetClientSurfaceId() const {
std::string* value = window_->GetProperty(kClientSurfaceIdKey);
return value ? *value : std::string();
}
void Surface::SetContainsVideo(bool contains_video) {
TRACE_EVENT1("exo", "Surface::SetContainsVideo", "contains_video",
contains_video ? "true" : "false");
pending_state_.basic_state.contains_video = contains_video;
}
bool Surface::ContainsVideo() {
if (state_.basic_state.contains_video)
return true;
for (auto& subsurface : sub_surfaces_) {
if (subsurface.first->ContainsVideo())
return true;
}
for (auto& render_layer : render_layers_) {
if (render_layer.first->ContainsVideo()) {
return true;
}
}
return false;
}
void Surface::SetWindowSessionId(int32_t window_session_id) {
if (window_session_id > 0)
window_->SetProperty(kWindowSessionId, window_session_id);
else
window_->ClearProperty(kWindowSessionId);
}
int32_t Surface::GetWindowSessionId() {
return window_->GetProperty(kWindowSessionId);
}
void Surface::SetPip() {
if (delegate_)
delegate_->SetPip();
}
void Surface::UnsetPip() {
if (delegate_)
delegate_->UnsetPip();
}
void Surface::SetAspectRatio(const gfx::SizeF& aspect_ratio) {
if (delegate_)
delegate_->SetAspectRatio(aspect_ratio);
}
void Surface::SetAcquireFence(std::unique_ptr<gfx::GpuFence> gpu_fence) {
TRACE_EVENT1("exo", "Surface::SetAcquireFence", "fence_fd",
gpu_fence ? gpu_fence->GetGpuFenceHandle().Peek() : -1);
pending_state_.acquire_fence = std::move(gpu_fence);
}
bool Surface::HasPendingAcquireFence() const {
return !!pending_state_.acquire_fence;
}
bool Surface::HasAcquireFence() const {
return !!state_.acquire_fence;
}
void Surface::SetPerCommitBufferReleaseCallback(
Buffer::PerCommitExplicitReleaseCallback callback) {
TRACE_EVENT0("exo", "Surface::SetPerCommitBufferReleaseCallback");
pending_state_.per_commit_explicit_release_callback_ = std::move(callback);
}
bool Surface::HasPendingPerCommitBufferReleaseCallback() const {
return !!pending_state_.per_commit_explicit_release_callback_;
}
void Surface::Commit() {
TRACE_EVENT1(
"exo", "Surface::Commit", "buffer_id",
static_cast<const void*>(
pending_state_.buffer.has_value() && pending_state_.buffer->buffer()
? pending_state_.buffer->buffer()->GetBufferId()
: nullptr));
for (auto& observer : observers_)
observer.OnCommit(this);
needs_commit_surface_ = true;
// Transfer pending state to cached state.
cached_state_.basic_state = pending_state_.basic_state;
pending_state_.basic_state.only_visible_on_secure_output = false;
has_cached_contents_ |= has_pending_contents_;
has_pending_contents_ = false;
if (pending_state_.buffer.has_value()) {
cached_state_.buffer = std::move(pending_state_.buffer);
pending_state_.buffer.reset();
}
cached_state_.rounded_corners_bounds = pending_state_.rounded_corners_bounds;
cached_state_.overlay_priority_hint = pending_state_.overlay_priority_hint;
cached_state_.clip_rect = pending_state_.clip_rect;
cached_state_.surface_transform = pending_state_.surface_transform;
cached_state_.acquire_fence = std::move(pending_state_.acquire_fence);
cached_state_.per_commit_explicit_release_callback_ =
std::move(pending_state_.per_commit_explicit_release_callback_);
cached_state_.frame_callbacks.splice(cached_state_.frame_callbacks.end(),
pending_state_.frame_callbacks);
cached_state_.damage.Union(pending_state_.damage);
pending_state_.damage.Clear();
// Existing presentation callbacks in the cached state when a new pending
// state is merged in should end up delivered as "discarded".
for (const auto& presentation_callback : cached_state_.presentation_callbacks)
presentation_callback.Run(gfx::PresentationFeedback());
cached_state_.presentation_callbacks.clear();
cached_state_.presentation_callbacks.splice(
cached_state_.presentation_callbacks.end(),
pending_state_.presentation_callbacks);
cached_state_.frame_trace_id = pending_state_.frame_trace_id;
pending_state_.frame_trace_id = -1;
if (delegate_)
delegate_->OnSurfaceCommit();
else
CommitSurfaceHierarchy(false);
}
bool Surface::UpdateDisplay(int64_t old_display, int64_t new_display) {
display_id_ = new_display;
if (has_contents() && !leave_enter_callback_.is_null()) {
if (!leave_enter_callback_.Run(old_display, new_display)) {
return false;
}
}
for (const auto& sub_surface_entry : base::Reversed(sub_surfaces_)) {
auto* sub_surface = sub_surface_entry.first;
if (!sub_surface->UpdateDisplay(old_display, new_display))
return false;
}
for (auto& observer : observers_) {
observer.OnDisplayChanged(this, old_display, new_display);
}
return true;
}
display::Display Surface::GetDisplay() const {
return display::Screen::GetScreen()->GetDisplayNearestWindow(window());
}
void Surface::CommitSurfaceHierarchy(bool synchronized) {
TRACE_EVENT0("exo", "Surface::CommitSurfaceHierarchy");
if (needs_commit_surface_ && (synchronized || !IsSynchronized())) {
needs_commit_surface_ = false;
synchronized = true;
// TODO(penghuang): Make the damage more precise for sub surface changes.
// https://crbug.com/779704
bool needs_full_damage = sub_surfaces_changed_;
if (!is_augmented()) {
needs_full_damage |=
cached_state_.basic_state.opaque_region !=
state_.basic_state.opaque_region ||
cached_state_.basic_state.buffer_scale !=
state_.basic_state.buffer_scale ||
cached_state_.basic_state.buffer_transform !=
state_.basic_state.buffer_transform ||
cached_state_.basic_state.viewport != state_.basic_state.viewport ||
cached_state_.rounded_corners_bounds !=
state_.rounded_corners_bounds ||
cached_state_.basic_state.crop != state_.basic_state.crop ||
cached_state_.basic_state.only_visible_on_secure_output !=
state_.basic_state.only_visible_on_secure_output ||
cached_state_.basic_state.blend_mode !=
state_.basic_state.blend_mode ||
cached_state_.basic_state.alpha != state_.basic_state.alpha ||
cached_state_.basic_state.color_space !=
state_.basic_state.color_space ||
cached_state_.basic_state.is_tracking_occlusion !=
state_.basic_state.is_tracking_occlusion;
}
bool needs_update_buffer_transform =
cached_state_.basic_state.buffer_scale !=
state_.basic_state.buffer_scale ||
cached_state_.basic_state.buffer_transform !=
state_.basic_state.buffer_transform;
bool needs_output_protection =
cached_state_.basic_state.only_visible_on_secure_output !=
state_.basic_state.only_visible_on_secure_output;
bool cached_invert_y = false;
// If the current state is fully transparent, the last submitted frame will
// not include the TextureDrawQuad for the resource, so the resource might
// have been released and needs to be updated again.
if (!state_.basic_state.alpha && cached_state_.basic_state.alpha)
needs_update_resource_ = true;
state_.basic_state = cached_state_.basic_state;
cached_state_.basic_state.only_visible_on_secure_output = false;
if (!is_augmented()) {
window_->SetEventTargetingPolicy(
(state_.basic_state.input_region.has_value() &&
state_.basic_state.input_region->IsEmpty())
? aura::EventTargetingPolicy::kDescendantsOnly
: aura::EventTargetingPolicy::kTargetAndDescendants);
if (state_.basic_state.is_tracking_occlusion) {
// TODO(edcourtney): Currently, it doesn't seem to be possible to stop
// tracking the occlusion state once started, but it would be nice to
// stop if the tracked occlusion region becomes empty.
window_->TrackOcclusionState();
}
}
if (needs_output_protection) {
if (!output_protection_) {
output_protection_ =
std::make_unique<ash::OutputProtectionDelegate>(window_.get());
}
uint32_t protection_mask =
state_.basic_state.only_visible_on_secure_output
? display::CONTENT_PROTECTION_METHOD_HDCP
: display::CONTENT_PROTECTION_METHOD_NONE;
output_protection_->SetProtection(protection_mask, base::DoNothing());
}
// We update contents if Attach() has been called since last commit.
if (has_cached_contents_) {
has_cached_contents_ = false;
bool current_invert_y = state_.buffer.has_value() &&
state_.buffer->buffer() &&
state_.buffer->buffer()->y_invert();
cached_invert_y = cached_state_.buffer.has_value() &&
cached_state_.buffer->buffer() &&
cached_state_.buffer->buffer()->y_invert();
if (current_invert_y != cached_invert_y)
needs_update_buffer_transform = true;
if (cached_state_.buffer.has_value()) {
bool had_contents = has_contents();
state_.buffer = std::move(cached_state_.buffer);
cached_state_.buffer.reset();
if (display_id_ != display::kInvalidDisplayId &&
!leave_enter_callback_.is_null()) {
if (!had_contents && has_contents()) {
leave_enter_callback_.Run(display::kInvalidDisplayId, display_id_);
} else if (had_contents && !has_contents()) {
leave_enter_callback_.Run(display_id_, display::kInvalidDisplayId);
}
}
}
state_.rounded_corners_bounds = cached_state_.rounded_corners_bounds;
state_.clip_rect = cached_state_.clip_rect;
state_.surface_transform = cached_state_.surface_transform;
state_.acquire_fence = std::move(cached_state_.acquire_fence);
state_.per_commit_explicit_release_callback_ =
std::move(cached_state_.per_commit_explicit_release_callback_);
if (state_.basic_state.alpha)
needs_update_resource_ = true;
}
// The overlay priority hint can get set before any buffer gets
// allocated/attached and may influence the format/modifier selection for
// these.
UpdateOverlayPriorityHint(cached_state_.overlay_priority_hint);
// Either we didn't have a pending acquire fence, or we had one along with
// a new buffer, and it was already moved to state_.acquire_fence. Note that
// it is a commit-time client error to commit a fence without a buffer.
DCHECK(!cached_state_.acquire_fence);
// Similarly for the per commit buffer release callback.
DCHECK(!cached_state_.per_commit_explicit_release_callback_);
if (needs_update_buffer_transform)
UpdateBufferTransform(cached_invert_y);
// Move pending frame callbacks to the end of |state_.frame_callbacks|.
state_.frame_callbacks.splice(state_.frame_callbacks.end(),
cached_state_.frame_callbacks);
// Move pending presentation callbacks to the end of
// |state_.presentation_callbacks|.
state_.presentation_callbacks.splice(state_.presentation_callbacks.end(),
cached_state_.presentation_callbacks);
UpdateContentSize();
// Synchronize window hierarchy. This will position and update the stacking
// order of all sub-surfaces after committing all pending state of
// sub-surface descendants.
// Changes to sub_surface stack is immediately applied to pending, which
// will be copied to active directly when parent surface is committed,
// skipping the cached state.
if (sub_surfaces_changed_) {
sub_surfaces_.clear();
aura::Window* stacking_target = nullptr;
for (const auto& sub_surface_entry : pending_sub_surfaces_) {
Surface* sub_surface = sub_surface_entry.first;
sub_surfaces_.push_back(sub_surface_entry);
// Move sub-surface to its new position in the stack.
if (stacking_target) {
window_->StackChildAbove(sub_surface->window(), stacking_target);
}
// Stack next sub-surface above this sub-surface.
stacking_target = sub_surface->window();
// Update sub-surface position relative to surface origin.
sub_surface->window()->SetBounds(
gfx::Rect(gfx::ToFlooredPoint(sub_surface_entry.second),
sub_surface->window()->bounds().size()));
}
sub_surfaces_changed_ = false;
}
gfx::Rect output_rect(gfx::ToCeiledSize(content_size_));
if (needs_full_damage) {
state_.damage = output_rect;
} else {
// cached_state_.damage is in Surface coordinates.
state_.damage.Swap(&cached_state_.damage);
state_.damage.Intersect(output_rect);
}
cached_state_.damage.Clear();
state_.frame_trace_id = cached_state_.frame_trace_id;
cached_state_.frame_trace_id = -1;
}
surface_hierarchy_content_bounds_ =
gfx::Rect(gfx::ToCeiledSize(content_size_));
for (const auto& render_layer_entry : base::Reversed(render_layers_)) {
auto* render_layer = render_layer_entry.first;
render_layer->CommitSurfaceHierarchy(synchronized);
}
if (!is_augmented()) {
if (state_.basic_state.input_region) {
hit_test_region_ = *state_.basic_state.input_region;
hit_test_region_.Intersect(surface_hierarchy_content_bounds_);
} else {
hit_test_region_ = surface_hierarchy_content_bounds_;
}
int outset = state_.basic_state.input_outset;
if (outset > 0) {
gfx::Rect input_rect = surface_hierarchy_content_bounds_;
input_rect.Inset(-outset);
hit_test_region_ = input_rect;
}
for (const auto& sub_surface_entry : base::Reversed(sub_surfaces_)) {
auto* sub_surface = sub_surface_entry.first;
gfx::Vector2d offset =
gfx::ToRoundedPoint(sub_surface_entry.second).OffsetFromOrigin();
// Synchronously commit all pending state of the sub-surface and its
// descendants.
sub_surface->CommitSurfaceHierarchy(synchronized);
surface_hierarchy_content_bounds_.Union(
sub_surface->surface_hierarchy_content_bounds() + offset);
hit_test_region_.Union(sub_surface->hit_test_region_ + offset);
}
}
}
void Surface::AppendSurfaceHierarchyCallbacks(
std::list<FrameCallback>* frame_callbacks,
std::list<PresentationCallback>* presentation_callbacks) {
// Move frame callbacks to the end of |frame_callbacks|.
frame_callbacks->splice(frame_callbacks->end(), state_.frame_callbacks);
// Move presentation callbacks to the end of |presentation_callbacks|.
presentation_callbacks->splice(presentation_callbacks->end(),
state_.presentation_callbacks);
for (const auto& render_layer_entry : base::Reversed(render_layers_)) {
auto* render_layer = render_layer_entry.first;
render_layer->AppendSurfaceHierarchyCallbacks(frame_callbacks,
presentation_callbacks);
}
for (const auto& sub_surface_entry : base::Reversed(sub_surfaces_)) {
auto* sub_surface = sub_surface_entry.first;
sub_surface->AppendSurfaceHierarchyCallbacks(frame_callbacks,
presentation_callbacks);
}
}
void Surface::AppendSurfaceHierarchyContentsToFrame(
const gfx::PointF& parent_to_root_px,
const gfx::PointF& to_parent_dp,
bool needs_full_damage,
FrameSinkResourceManager* resource_manager,
std::optional<float> device_scale_factor,
viz::CompositorFrame* frame) {
// The top most sub-surface is at the front of the RenderPass's quad_list,
// so we need composite sub-surface in reversed order.
for (const auto& sub_surface_entry : base::Reversed(sub_surfaces_)) {
auto* sub_surface = sub_surface_entry.first;
// Synchronously commit all pending state of the sub-surface and its
// descendents.
gfx::PointF to_root_px =
parent_to_root_px +
gfx::ScalePoint(to_parent_dp, device_scale_factor.value_or(1.f))
.OffsetFromOrigin();
sub_surface->AppendSurfaceHierarchyContentsToFrame(
to_root_px, sub_surface_entry.second, needs_full_damage,
resource_manager, device_scale_factor, frame);
}
// Make sure the sub_surfaces are rendered before render_layers for this
// surface s.t. sub_surfaces are rendered above the render_layers.
for (const auto& render_layer_entry : base::Reversed(render_layers_)) {
auto* render_layer = render_layer_entry.first;
// Synchronously commit all pending state of the layer and its descendents.
gfx::PointF to_root_px =
parent_to_root_px +
gfx::ScalePoint(to_parent_dp, device_scale_factor.value_or(1.f))
.OffsetFromOrigin();
render_layer->AppendSurfaceHierarchyContentsToFrame(
to_root_px, render_layer_entry.second, needs_full_damage,
resource_manager, device_scale_factor, frame);
}
// Update the resource, or if not required, ensure we call the buffer release
// callback, since the buffer will not be used for this commit.
if (needs_update_resource_) {
UpdateResource(resource_manager);
} else {
ImmediateExplicitRelease(
std::move(state_.per_commit_explicit_release_callback_));
}
AppendContentsToFrame(parent_to_root_px, to_parent_dp, needs_full_damage,
device_scale_factor, frame);
}
bool Surface::IsSynchronized() const {
return (delegate_ && delegate_->IsSurfaceSynchronized()) || is_augmented();
}
bool Surface::IsInputEnabled(Surface* surface) const {
return !is_augmented() && (!delegate_ || delegate_->IsInputEnabled(surface));
}
bool Surface::HasHitTestRegion() const {
return !is_augmented() && !hit_test_region_.IsEmpty();
}
bool Surface::HitTest(const gfx::Point& point) const {
return !is_augmented() && hit_test_region_.Contains(point);
}
void Surface::GetHitTestMask(SkPath* mask) const {
hit_test_region_.GetBoundaryPath(mask);
}
void Surface::SetSurfaceDelegate(SurfaceDelegate* delegate) {
DCHECK(!delegate_ || !delegate);
delegate_ = delegate;
}
bool Surface::HasSurfaceDelegate() const {
return !!delegate_;
}
SurfaceDelegate* Surface::GetDelegateForTesting() {
return delegate_;
}
void Surface::AddSurfaceObserver(SurfaceObserver* observer) {
observers_.AddObserver(observer);
}
void Surface::RemoveSurfaceObserver(SurfaceObserver* observer) {
observers_.RemoveObserver(observer);
}
bool Surface::HasSurfaceObserver(const SurfaceObserver* observer) const {
return observers_.HasObserver(observer);
}
std::unique_ptr<base::trace_event::TracedValue> Surface::AsTracedValue() const {
std::unique_ptr<base::trace_event::TracedValue> value(
new base::trace_event::TracedValue());
value->SetString("name", window_->layer()->name());
return value;
}
bool Surface::IsStylusOnly() {
return window_->GetProperty(kStylusOnlyKey);
}
void Surface::SetStylusOnly() {
window_->SetProperty(kStylusOnlyKey, true);
}
void Surface::SurfaceHierarchyResourcesLost() {
// Update resource and full damage are needed for next frame.
needs_update_resource_ = true;
for (const auto& render_layer : render_layers_) {
render_layer.first->SurfaceHierarchyResourcesLost();
}
for (const auto& sub_surface : sub_surfaces_)
sub_surface.first->SurfaceHierarchyResourcesLost();
}
bool Surface::FillsBoundsOpaquely() const {
return !current_resource_has_alpha_ ||
state_.basic_state.blend_mode == SkBlendMode::kSrc ||
state_.basic_state.opaque_region.Contains(
gfx::ToEnclosingRect(gfx::RectF(content_size_)));
}
void Surface::SetOcclusionTracking(bool tracking) {
pending_state_.basic_state.is_tracking_occlusion = tracking;
}
bool Surface::IsTrackingOcclusion() {
return state_.basic_state.is_tracking_occlusion;
}
void Surface::SetSurfaceHierarchyContentBoundsForTest(
const gfx::Rect& content_bounds) {
surface_hierarchy_content_bounds_ = content_bounds;
}
////////////////////////////////////////////////////////////////////////////////
// Buffer, private:
Surface::State::State() {}
Surface::State::~State() = default;
bool Surface::State::operator==(const State& other) const {
return other.opaque_region == opaque_region &&
other.input_region == input_region &&
other.buffer_scale == buffer_scale &&
other.buffer_transform == buffer_transform &&
other.viewport == viewport && other.crop == crop &&
other.only_visible_on_secure_output == only_visible_on_secure_output &&
other.blend_mode == blend_mode && other.alpha == alpha;
}
Surface::BufferAttachment::BufferAttachment() = default;
Surface::BufferAttachment::~BufferAttachment() {
if (buffer_)
buffer_->OnDetach();
}
Surface::BufferAttachment::BufferAttachment(BufferAttachment&& other) {
*this = std::move(other);
}
Surface::BufferAttachment& Surface::BufferAttachment::operator=(
BufferAttachment&& other) {
if (buffer_)
buffer_->OnDetach();
buffer_ = other.buffer_;
size_ = other.size_;
other.buffer_ = base::WeakPtr<Buffer>();
other.size_ = gfx::Size();
return *this;
}
base::WeakPtr<Buffer>& Surface::BufferAttachment::buffer() {
return buffer_;
}
const base::WeakPtr<Buffer>& Surface::BufferAttachment::buffer() const {
return buffer_;
}
const gfx::Size& Surface::BufferAttachment::size() const {
return size_;
}
void Surface::BufferAttachment::Reset(base::WeakPtr<Buffer> buffer) {
size_ = gfx::Size();
if (buffer) {
buffer->OnAttach();
size_ = buffer->GetSize();
}
if (buffer_)
buffer_->OnDetach();
buffer_ = buffer;
}
Surface::ExtendedState::ExtendedState() = default;
Surface::ExtendedState::~ExtendedState() = default;
void Surface::UpdateResource(FrameSinkResourceManager* resource_manager) {
DCHECK(needs_update_resource_);
needs_update_resource_ = false;
if (state_.buffer.has_value() && state_.buffer->buffer()) {
gfx::ColorSpace buffer_color_space = state_.basic_state.color_space;
// Invalid color spaces cause issues went sent to the buffer. In these cases
// revert to passing SRGB as before.
if (!buffer_color_space.IsValid()) {
buffer_color_space = gfx::ColorSpace::CreateSRGB();
}
if (legacy_buffer_release_skippable_ &&
state_.per_commit_explicit_release_callback_) {
state_.buffer->buffer()->SkipLegacyRelease();
}
if (state_.buffer->buffer()->ProduceTransferableResource(
resource_manager, std::move(state_.acquire_fence),
state_.basic_state.only_visible_on_secure_output,
&current_resource_, buffer_color_space,
window_->GetToplevelWindow()->GetProperty(
kProtectedNativePixmapQueryDelegate),
std::move(state_.per_commit_explicit_release_callback_))) {
current_resource_has_alpha_ =
FormatHasAlpha(state_.buffer->buffer()->GetFormat());
current_resource_.color_space = state_.basic_state.color_space;
} else {
current_resource_.id = viz::kInvalidResourceId;
// Use the buffer's size, so the AppendContentsToFrame() will append
// a SolidColorDrawQuad with the buffer's size.
current_resource_.size = state_.buffer->size();
SkColor4f color = state_.buffer->buffer()->GetColor();
current_resource_has_alpha_ = !color.isOpaque();
}
} else {
current_resource_.id = viz::kInvalidResourceId;
current_resource_.size = gfx::Size();
current_resource_has_alpha_ = false;
ImmediateExplicitRelease(
std::move(state_.per_commit_explicit_release_callback_));
}
}
void Surface::UpdateBufferTransform(bool y_invert) {
buffer_transform_ =
ToBufferTransformMatrix(state_.basic_state.buffer_transform, y_invert);
if (state_.basic_state.buffer_scale != 0) {
buffer_transform_.PostScale(1.0f / state_.basic_state.buffer_scale,
1.0f / state_.basic_state.buffer_scale);
}
}
void Surface::UpdateOverlayPriorityHint(OverlayPriority overlay_priority_hint) {
if (state_.overlay_priority_hint == overlay_priority_hint) {
return;
}
state_.overlay_priority_hint = overlay_priority_hint;
for (SurfaceObserver& observer : observers_) {
observer.OnOverlayPriorityHintChanged(overlay_priority_hint);
}
}
// Some clients (ARC) submit overlapping surfaces that are almost always
// occluded. However, due how viz does quad overdrawn quad occlusion with
// rounded corners, this does not always remove all occluded quads. To avoid
// overdraw and subtle fast rounded corner compositing bugs we remove fully
// occluded surfaces here before they even become quads to submit to the
// compositor. See b/307557914
// TODO( b/325307643 ) : Provide a generalized solution here for the compositor.
static bool IsOccludedByPreviousSqs(
const std::unique_ptr<viz::CompositorRenderPass>& render_pass,
const gfx::Transform& quad_to_target_transform,
const gfx::Rect& quad_rect,
const gfx::MaskFilterInfo& msk) {
viz::SharedQuadState* prev_sqs =
!render_pass->shared_quad_state_list.empty()
? render_pass->shared_quad_state_list.back()
: nullptr;
// Limit the cases here to pixel aligned occlusions so all tests are known to
// be in the same space.
if (prev_sqs && quad_to_target_transform.IsIdentity() &&
prev_sqs->quad_to_target_transform.IsIdentity() &&
prev_sqs->are_contents_opaque && prev_sqs->opacity == 1.f) {
if (prev_sqs->clip_rect && !prev_sqs->clip_rect->Contains(quad_rect)) {
return false;
}
if (prev_sqs->quad_layer_rect.Contains(quad_rect)) {
if (msk == prev_sqs->mask_filter_info) {
return true;
}
}
}
return false;
}
// Try to share the |SharedQuadState| (sqs) when a single layer can be
// reconstructed. This is important for performance reasons in the occlusion
// code and correctness in the per edge anti-alias code.
static viz::SharedQuadState* AppendOrCreateSharedQuadState(
viz::DrawQuad::Material quad_type,
float opacity,
const std::unique_ptr<viz::CompositorRenderPass>& render_pass,
const gfx::Transform& quad_to_target_transform,
const gfx::Rect& quad_rect,
const gfx::MaskFilterInfo& msk,
const std::optional<gfx::Rect>& quad_clip_rect,
const bool are_contents_opaque) {
viz::SharedQuadState* quad_state =
!render_pass->shared_quad_state_list.empty()
? render_pass->shared_quad_state_list.back()
: nullptr;
auto test_union = quad_rect;
bool is_sealed_union = false;
if (quad_state) {
// A sealed union is when the combined rect has no gaps and can form a
// single layer rect.
test_union.Union(quad_state->quad_layer_rect);
if ((test_union.width() == quad_rect.width() &&
test_union.width() == quad_state->quad_layer_rect.width())) {
if (quad_rect.height() + quad_state->quad_layer_rect.height() >=
test_union.height())
is_sealed_union = true;
}
if ((test_union.height() == quad_rect.height() &&
test_union.height() == quad_state->quad_layer_rect.height())) {
if (quad_rect.width() + quad_state->quad_layer_rect.width() >=
test_union.width())
is_sealed_union = true;
}
}
bool prev_texture_draw_quad = false;
if (!render_pass->quad_list.empty()) {
prev_texture_draw_quad = render_pass->quad_list.back()->material ==
viz::DrawQuad::Material::kTextureContent;
}
if (quad_type != viz::DrawQuad::Material::kTextureContent &&
!prev_texture_draw_quad && quad_state && is_sealed_union &&
quad_to_target_transform == quad_state->quad_to_target_transform &&
opacity == quad_state->opacity &&
quad_clip_rect == quad_state->clip_rect &&
are_contents_opaque == quad_state->are_contents_opaque &&
msk == quad_state->mask_filter_info) {
// Expland the layer portion of the sqs.
quad_state->quad_layer_rect = test_union;
quad_state->visible_quad_layer_rect = test_union;
} else {
quad_state = render_pass->CreateAndAppendSharedQuadState();
quad_state->SetAll(quad_to_target_transform, quad_rect, quad_rect, msk,
quad_clip_rect, are_contents_opaque, opacity,
SkBlendMode::kSrcOver, /*sorting_context=*/0,
/*layer_id=*/0u, /*fast_rounded_corner=*/false);
}
return quad_state;
}
void Surface::AppendContentsToFrame(const gfx::PointF& parent_to_root_px,
const gfx::PointF& to_parent_dp,
bool needs_full_damage,
std::optional<float> device_scale_factor,
viz::CompositorFrame* frame) {
const std::unique_ptr<viz::CompositorRenderPass>& render_pass =
frame->render_pass_list.back();
gfx::PointF parent_to_root_dp = gfx::ScalePoint(
parent_to_root_px, 1.f / device_scale_factor.value_or(1.f));
gfx::PointF to_root_dp = parent_to_root_dp + to_parent_dp.OffsetFromOrigin();
gfx::RectF output_rect(to_root_dp, content_size_);
gfx::Rect quad_rect(0, 0, 1, 1);
// Surface bounds are in DIPs, but |damage_rect| should be specified in
// pixels, so we need to scale by the |device_scale_factor|.
gfx::RectF damage_rect_px;
gfx::RectF damage_rect_dp = needs_full_damage
? gfx::RectF(content_size_)
: gfx::RectF(state_.damage.bounds());
if (!damage_rect_dp.IsEmpty() || extended_damage_dp_.has_value()) {
// Outset damage by 1 DIP to as damage is in surface coordinate space and
// client might not be aware of |device_scale_factor| and the
// scaling/filtering it requires.
if (!damage_rect_dp.IsEmpty()) {
damage_rect_dp.Inset(-1);
damage_rect_dp += to_root_dp.OffsetFromOrigin();
damage_rect_dp.Intersect(output_rect);
}
if (extended_damage_dp_.has_value()) {
damage_rect_dp.Union(extended_damage_dp_.value() +
to_root_dp.OffsetFromOrigin());
extended_damage_dp_.reset();
}
damage_rect_px = damage_rect_dp;
if (device_scale_factor.has_value()) {
if (device_scale_factor.value() <= 1) {
damage_rect_px = gfx::ConvertRectToPixels(damage_rect_px,
device_scale_factor.value());
} else {
// The damage will eventually be rescaled by 1/device_scale_factor.
// Since that scale factor is <1, taking the enclosed rect here means
// that that rescaled RectF is <1px smaller than |damage_rect| in each
// dimension, which makes the enclosing rect equal to |damage_rect|.
damage_rect_px.Scale(device_scale_factor.value());
}
}
}
std::optional<gfx::Rect> quad_clip_rect;
if (state_.clip_rect) {
auto clip_rect_offset =
gfx::ScalePoint(to_root_dp, device_scale_factor.value_or(1.f))
.OffsetFromOrigin();
quad_clip_rect = gfx::ToEnclosedRect(*state_.clip_rect + clip_rect_offset);
}
state_.damage.Clear();
gfx::Vector2dF scale(content_size_.width(), content_size_.height());
gfx::Vector2dF translate(0.0f, 0.0f);
scale.Scale(state_.basic_state.buffer_scale);
bool are_contents_opaque =
!current_resource_has_alpha_ ||
state_.basic_state.blend_mode == SkBlendMode::kSrc ||
state_.basic_state.opaque_region.Contains(
gfx::ToEnclosedRect(output_rect));
gfx::MaskFilterInfo msk;
if (!state_.rounded_corners_bounds.IsEmpty()) {
// Set the mask.
msk = gfx::MaskFilterInfo(state_.rounded_corners_bounds +
to_root_dp.OffsetFromOrigin());
if (device_scale_factor.has_value()) {
msk.ApplyTransform(
gfx::Transform::MakeScale(device_scale_factor.value()));
}
}
// Compute the total transformation from post-transform buffer coordinates to
// target coordinates.
// Scale to size then translate to position of subsurface in parent's space.
gfx::Transform viewport_to_target_transform(
gfx::AxisTransform2d::FromScaleAndTranslation(
scale, to_parent_dp.OffsetFromOrigin() + translate));
// Apply delegated transform matrix
viewport_to_target_transform.PostConcat(state_.surface_transform);
if (device_scale_factor.has_value()) {
// Convert from DPs to pixels.
viewport_to_target_transform.PostScale(device_scale_factor.value());
}
// Translate to root in pixels.
viewport_to_target_transform.PostTranslate(
parent_to_root_px.OffsetFromOrigin());
gfx::Transform quad_to_target_transform(buffer_transform_);
quad_to_target_transform.PostConcat(viewport_to_target_transform);
// The overdraw algorithm in 'Display::RemoveOverdrawQuads' operates in
// content space and, due to the discretized nature of the |gfx::Rect|, cannot
// work with 0,0 1x1 quads. This also means that quads that do not fall on
// pixel boundaries (rotated or subpixel rects) cannot be removed by the
// algorithm.
if (quad_to_target_transform.Preserves2dAxisAlignment()) {
gfx::RectF target_space_rect =
quad_to_target_transform.MapRect(gfx::RectF(quad_rect));
// This simple rect representation cannot mathematically express a rotation
// (and currently does not express flip/mirror) hence the
// 'IsPositiveScaleOrTranslation' check.
if (gfx::IsNearestRectWithinDistance(target_space_rect, 0.001f) &&
quad_to_target_transform.IsPositiveScaleOrTranslation()) {
quad_rect = gfx::ToNearestRect(target_space_rect);
// Later in 'SurfaceAggregator' this transform will have 2d translation.
quad_to_target_transform = gfx::Transform();
}
}
if (IsExoOcclusionEnabled() &&
IsOccludedByPreviousSqs(render_pass, quad_to_target_transform, quad_rect,
msk)) {
render_pass->damage_rect.Union(gfx::ToEnclosedRect(damage_rect_px));
if (current_resource_.id) {
frame->resource_list.push_back(current_resource_);
}
return;
}
if (current_resource_.id) {
gfx::RectF uv_crop(gfx::SizeF(1, 1));
if (!state_.basic_state.crop.IsEmpty()) {
// The crop rectangle is a post-transformation rectangle. To get the UV
// coordinates, we need to convert it to normalized buffer coordinates and
// pass them through the inverse of the buffer transformation.
uv_crop = gfx::RectF(state_.basic_state.crop);
gfx::Size transformed_buffer_size(ToTransformedSize(
current_resource_.size, state_.basic_state.buffer_transform));
if (!transformed_buffer_size.IsEmpty()) {
uv_crop.InvScale(transformed_buffer_size.width(),
transformed_buffer_size.height());
}
uv_crop = buffer_transform_.InverseMapRect(uv_crop).value_or(uv_crop);
}
SkColor4f background_color = SkColors::kTransparent;
if (state_.basic_state.background_color.has_value())
background_color = state_.basic_state.background_color.value();
else if (current_resource_has_alpha_ && are_contents_opaque)
background_color = SkColors::kBlack; // Avoid writing alpha < 1
if (state_.basic_state.alpha != 0.0f) {
const bool requires_texture_draw_quad =
state_.basic_state.only_visible_on_secure_output ||
state_.overlay_priority_hint != OverlayPriority::LOW;
const viz::SharedQuadState* quad_state = AppendOrCreateSharedQuadState(
requires_texture_draw_quad ? viz::DrawQuad::Material::kTextureContent
: viz::DrawQuad::Material::kTiledContent,
state_.basic_state.alpha, render_pass, quad_to_target_transform,
quad_rect, msk, quad_clip_rect, are_contents_opaque);
// Our historical implementation of the wayland blending protocol is to
// treat blend none as fully opaque alpha and not simply "src". This allow
// us to treat client buffers as rgbx. For an example see b/305977429
const bool force_rgbx_for_opaque =
are_contents_opaque && current_resource_has_alpha_;
// Draw quad is only needed if buffer is not fully transparent.
if (requires_texture_draw_quad) {
viz::TextureDrawQuad* texture_quad =
render_pass->CreateAndAppendDrawQuad<viz::TextureDrawQuad>();
texture_quad->SetNew(quad_state, quad_rect, quad_rect,
/* needs_blending=*/!are_contents_opaque,
current_resource_.id,
/* premultiplied*/ true, uv_crop.origin(),
uv_crop.bottom_right(), background_color,
/* flipped=*/false, /* nearest*/ false,
state_.basic_state.only_visible_on_secure_output,
gfx::ProtectedVideoType::kClear);
if (current_resource_.is_overlay_candidate)
texture_quad->set_resource_size_in_pixels(current_resource_.size);
if (force_rgbx_for_opaque) {
texture_quad->set_force_rgbx();
}
switch (state_.overlay_priority_hint) {
case OverlayPriority::LOW:
texture_quad->overlay_priority_hint = viz::OverlayPriority::kLow;
break;
case OverlayPriority::REQUIRED:
texture_quad->overlay_priority_hint =
viz::OverlayPriority::kRequired;
break;
case OverlayPriority::REGULAR:
texture_quad->overlay_priority_hint =
viz::OverlayPriority::kRegular;
break;
}
#if BUILDFLAG(USE_ARC_PROTECTED_MEDIA)
if (state_.basic_state.only_visible_on_secure_output &&
state_.buffer.has_value() && state_.buffer->buffer() &&
state_.buffer->buffer()->NeedsHardwareProtection()) {
texture_quad->protected_video_type =
gfx::ProtectedVideoType::kHardwareProtected;
}
#endif // BUILDFLAG(USE_ARC_PROTECTED_MEDIA)
if (!damage_rect_px.IsEmpty()) {
texture_quad->damage_rect = gfx::ToEnclosedRect(damage_rect_px);
render_pass->has_per_quad_damage = true;
// Clear handled damage so it will not be added to the |render_pass|.
damage_rect_px = gfx::RectF();
}
} else {
viz::TileDrawQuad* tile_quad =
render_pass->CreateAndAppendDrawQuad<viz::TileDrawQuad>();
// TODO(crbug.com/40229946): Support AA quads coming from exo.
constexpr bool kForceAntiAliasingOff = true;
tile_quad->SetNew(
quad_state, quad_rect, quad_rect,
/* needs_blending=*/!are_contents_opaque, current_resource_.id,
gfx::ScaleRect(uv_crop, current_resource_.size.width(),
current_resource_.size.height()),
current_resource_.size,
/* is_premultiplied=*/true,
/* nearest_neighbor */ false, kForceAntiAliasingOff);
}
}
frame->resource_list.push_back(current_resource_);
} else {
const viz::SharedQuadState* quad_state = AppendOrCreateSharedQuadState(
viz::DrawQuad::Material::kSolidColor, state_.basic_state.alpha,
render_pass, quad_to_target_transform, quad_rect, msk, quad_clip_rect,
are_contents_opaque);
SkColor4f color = state_.buffer.has_value() && state_.buffer->buffer()
? state_.buffer->buffer()->GetColor()
: SkColors::kBlack;
viz::SolidColorDrawQuad* solid_quad =
render_pass->CreateAndAppendDrawQuad<viz::SolidColorDrawQuad>();
solid_quad->SetNew(quad_state, quad_rect, quad_rect, color,
false /* force_anti_aliasing_off */);
}
render_pass->damage_rect.Union(gfx::ToEnclosedRect(damage_rect_px));
}
void Surface::UpdateContentSize() {
gfx::SizeF content_size;
// Enable/disable sub-surface based on if it has contents.
if (has_contents()) {
if (!state_.basic_state.viewport.IsEmpty()) {
content_size = state_.basic_state.viewport;
} else if (!state_.basic_state.crop.IsEmpty()) {
DLOG_IF(WARNING, !base::IsValueInRangeForNumericType<int>(
state_.basic_state.crop.width()) ||
!base::IsValueInRangeForNumericType<int>(
state_.basic_state.crop.height()))
<< "Crop rectangle size ("
<< state_.basic_state.crop.size().ToString()
<< ") most be expressible using integers when viewport is not set";
content_size = state_.basic_state.crop.size();
} else {
content_size = gfx::ScaleSize(
gfx::SizeF(ToTransformedSize(
state_.buffer.has_value() ? state_.buffer->size() : gfx::Size(),
state_.basic_state.buffer_transform)),
1.0f / state_.basic_state.buffer_scale);
}
// Check that a window has a parent before showing it.
// For example, aura::Window associated with augmented subsurfaces don't
// have parents, because they are not part of the tree.
if (!is_augmented() && window_->parent()) {
window_->Show();
}
} else if (!is_augmented()) {
window_->Hide();
}
if (content_size_ != content_size) {
// Save this to later expand the damage area.
if (!is_augmented()) {
if (extended_damage_dp_.has_value()) {
extended_damage_dp_->Union(gfx::RectF(content_size_));
} else {
extended_damage_dp_.emplace(gfx::RectF(content_size_));
}
}
content_size_ = content_size;
// TODO(b/191414141) : Check is temporary to isolate damage issue.
if (!gfx::ToRoundedSize(content_size_).GetCheckedArea().IsValid()) {
DCHECK(false) << " content_size_=" << content_size_.ToString();
constexpr int kMaxSizeScalar = 1 << 15;
// Forcibly restrict |content_size_| to 32kx32k.
content_size_.SetToMin(gfx::SizeF(kMaxSizeScalar, kMaxSizeScalar));
}
if (!is_augmented()) {
window_->SetBounds(gfx::Rect(window_->bounds().origin(),
gfx::ToCeiledSize(content_size_)));
}
}
}
void Surface::SetFrameLocked(bool lock) {
for (SurfaceObserver& observer : observers_)
observer.OnFrameLockingChanged(this, lock);
}
void Surface::OnScaleFactorChanged(float old_scale_factor,
float new_scale_factor) {
for (SurfaceObserver& observer : observers_) {
observer.OnScaleFactorChanged(this, old_scale_factor, new_scale_factor);
}
}
void Surface::OnWindowOcclusionChanged(
aura::Window::OcclusionState old_occlusion_state,
aura::Window::OcclusionState new_occlusion_state) {
if (!state_.basic_state.is_tracking_occlusion)
return;
// The first occlusion calculation happens without a buffer yet attached to
// the surface so ignore this change. This avoids `OcclusionState::HIDDEN`
// being sent , which will be immediately followed by
// `OcclusionState::VISIBLE` anyway once buffer is attached.
if (old_occlusion_state == aura::Window::OcclusionState::UNKNOWN &&
new_occlusion_state == aura::Window::OcclusionState::HIDDEN) {
return;
}
for (SurfaceObserver& observer : observers_)
observer.OnWindowOcclusionChanged(this);
}
void Surface::OnDeskChanged(int state) {
for (SurfaceObserver& observer : observers_)
observer.OnDeskChanged(this, state);
}
void Surface::OnTooltipShown(const std::u16string& text,
const gfx::Rect& bounds) {
for (SurfaceObserver& observer : observers_)
observer.OnTooltipShown(this, text, bounds);
}
void Surface::OnTooltipHidden() {
for (SurfaceObserver& observer : observers_)
observer.OnTooltipHidden(this);
}
void Surface::MoveToDesk(int desk_index) {
if (delegate_)
delegate_->MoveToDesk(desk_index);
}
void Surface::SetVisibleOnAllWorkspaces() {
if (delegate_)
delegate_->SetVisibleOnAllWorkspaces();
}
void Surface::SetInitialWorkspace(const char* initial_workspace) {
if (delegate_)
delegate_->SetInitialWorkspace(initial_workspace);
}
void Surface::Pin(bool trusted) {
if (delegate_)
delegate_->Pin(trusted);
}
void Surface::Unpin() {
if (delegate_)
delegate_->Unpin();
}
void Surface::ThrottleFrameRate(bool on) {
for (SurfaceObserver& observer : observers_)
observer.ThrottleFrameRate(on);
}
void Surface::SetKeyboardShortcutsInhibited(bool inhibited) {
if (keyboard_shortcuts_inhibited_ == inhibited)
return;
keyboard_shortcuts_inhibited_ = inhibited;
// Also set kCanConsumeSystemKeysKey property, so that the key event
// is also forwarded to exo::Keyboard.
// TODO(hidehiko): Support capability on migrating ARC/Crostini.
window_->SetProperty(ash::kCanConsumeSystemKeysKey, inhibited);
}
SecurityDelegate* Surface::GetSecurityDelegate() {
if (delegate_)
return delegate_->GetSecurityDelegate();
return nullptr;
}
void Surface::SetClientAccessibilityId(int id) {
if (!window_) {
return;
}
if (id >= 0) {
exo::SetShellClientAccessibilityId(window_.get(), id);
} else {
exo::SetShellClientAccessibilityId(window_.get(), std::nullopt);
}
}
void Surface::SetTopInset(int height) {
if (delegate_) {
delegate_->SetTopInset(height);
}
}
void Surface::OnFullscreenStateChanged(bool fullscreen) {
for (SurfaceObserver& observer : observers_) {
observer.OnFullscreenStateChanged(fullscreen);
}
for (const auto& [surface, point] : sub_surfaces_) {
surface->OnFullscreenStateChanged(fullscreen);
}
}
Buffer* Surface::GetBuffer() {
if (state_.buffer.has_value()) {
return state_.buffer->buffer().get();
}
return nullptr;
}
std::string Surface::DumpDebugInfo() const {
bool has_buffer = state_.buffer.has_value() &&
state_.buffer->buffer().get() &&
state_.buffer->buffer()->GetBufferId();
auto blend_mode_str = [](SkBlendMode mode) -> std::string {
switch (mode) {
case SkBlendMode::kSrc:
return " kSrc";
case SkBlendMode::kSrcOver:
return " kSrcOver";
default:
NOTREACHED();
return " InvalidBlendMode";
}
};
return "content-size=" + content_size_.ToString() +
(current_resource_has_alpha_ ? std::string(" has_alpha") : "") +
blend_mode_str(state_.basic_state.blend_mode) +
+" opaque-region=" + state_.basic_state.opaque_region.ToString() +
" " +
(has_buffer
? (std::string("format=") +
gfx::BufferFormatToString(
state_.buffer->buffer()->GetFormat()) +
(FormatHasAlpha(state_.buffer->buffer()->GetFormat()) ? "(a)"
: ""))
: "");
}
} // namespace exo