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//
// Copyright 2019 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Overlay.h:
// Defines the Overlay class that handles overlay widgets.
//
#ifndef LIBANGLE_OVERLAY_H_
#define LIBANGLE_OVERLAY_H_
#include "common/PackedEnums.h"
#include "common/angleutils.h"
#include "libANGLE/Error.h"
#include "libANGLE/OverlayWidgets.h"
#include "libANGLE/angletypes.h"
namespace rx
{
class OverlayImpl;
class GLImplFactory;
} // namespace rx
namespace gl
{
class Context;
class OverlayState : angle::NonCopyable
{
public:
OverlayState();
~OverlayState();
size_t getWidgetCoordinatesBufferSize() const;
size_t getTextWidgetsBufferSize() const;
size_t getGraphWidgetsBufferSize() const;
const uint8_t *getFontData() const;
void fillWidgetData(const gl::Extents &imageExtents,
uint8_t *textData,
uint8_t *graphData,
uint32_t *activeTextWidgetCountOut,
uint32_t *activeGraphWidgetCountOut) const;
uint32_t getEnabledWidgetCount() const { return mEnabledWidgetCount; }
private:
friend class Overlay;
uint32_t mEnabledWidgetCount;
angle::PackedEnumMap<WidgetId, std::unique_ptr<overlay::Widget>> mOverlayWidgets;
};
class Overlay : angle::NonCopyable
{
public:
Overlay(rx::GLImplFactory *implFactory);
~Overlay();
void init();
void destroy(const gl::Context *context);
void onSwap() const;
overlay::Text *getTextWidget(WidgetId id) const
{
return getWidgetAs<overlay::Text, WidgetType::Text>(id);
}
overlay::Count *getCountWidget(WidgetId id) const
{
return getWidgetAs<overlay::Count, WidgetType::Count>(id);
}
overlay::PerSecond *getPerSecondWidget(WidgetId id) const
{
return getWidgetAs<overlay::PerSecond, WidgetType::PerSecond>(id);
}
overlay::RunningGraph *getRunningGraphWidget(WidgetId id) const
{
return getWidgetAs<overlay::RunningGraph, WidgetType::RunningGraph>(id);
}
overlay::RunningHistogram *getRunningHistogramWidget(WidgetId id) const
{
return getWidgetAs<overlay::RunningHistogram, WidgetType::RunningHistogram>(id);
}
rx::OverlayImpl *getImplementation() const { return mImplementation.get(); }
bool isEnabled() const
{
return mImplementation != nullptr && mState.getEnabledWidgetCount() > 0;
}
private:
template <typename Widget, WidgetType Type>
Widget *getWidgetAs(WidgetId id) const
{
ASSERT(mState.mOverlayWidgets[id] != nullptr);
ASSERT(mState.mOverlayWidgets[id]->type == Type);
return rx::GetAs<Widget>(mState.mOverlayWidgets[id].get());
}
void initOverlayWidgets();
void enableOverlayWidgetsFromEnvironment();
// Time tracking for PerSecond items.
mutable double mLastPerSecondUpdate;
OverlayState mState;
std::unique_ptr<rx::OverlayImpl> mImplementation;
};
class MockOverlay
{
public:
MockOverlay(rx::GLImplFactory *implFactory);
~MockOverlay();
void init() {}
void destroy(const Context *context) {}
void onSwap() const {}
const overlay::Mock *getTextWidget(WidgetId id) const { return &mMock; }
const overlay::Mock *getCountWidget(WidgetId id) const { return &mMock; }
const overlay::Mock *getPerSecondWidget(WidgetId id) const { return &mMock; }
const overlay::Mock *getRunningGraphWidget(WidgetId id) const { return &mMock; }
const overlay::Mock *getRunningHistogramWidget(WidgetId id) const { return &mMock; }
bool isEnabled() const { return false; }
private:
overlay::Mock mMock;
};
#if ANGLE_ENABLE_OVERLAY
using OverlayType = Overlay;
using CountWidget = overlay::Count;
using PerSecondWidget = overlay::PerSecond;
using RunningGraphWidget = overlay::RunningGraph;
using RunningHistogramWidget = overlay::RunningHistogram;
using TextWidget = overlay::Text;
#else // !ANGLE_ENABLE_OVERLAY
using OverlayType = MockOverlay;
using CountWidget = const overlay::Mock;
using PerSecondWidget = const overlay::Mock;
using RunningGraphWidget = const overlay::Mock;
using RunningHistogramWidget = const overlay::Mock;
using TextWidget = const overlay::Mock;
#endif // ANGLE_ENABLE_OVERLAY
} // namespace gl
#endif // LIBANGLE_OVERLAY_H_
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