1 //
2 // Copyright 2019 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6 // Overlay.cpp:
7 // Implements the Overlay class.
8 //
9
10 #include "libANGLE/Overlay.h"
11
12 #include "common/string_utils.h"
13 #include "common/system_utils.h"
14 #include "libANGLE/Context.h"
15 #include "libANGLE/Overlay_font_autogen.h"
16 #include "libANGLE/renderer/GLImplFactory.h"
17 #include "libANGLE/renderer/OverlayImpl.h"
18
19 #include <numeric>
20
21 namespace gl
22 {
23 namespace
24 {
25 #define ANGLE_WIDGET_NAME_PROC(WIDGET_ID) {ANGLE_STRINGIFY(WIDGET_ID), WidgetId::WIDGET_ID},
26
27 constexpr std::pair<const char *, WidgetId> kWidgetNames[] = {
28 ANGLE_WIDGET_ID_X(ANGLE_WIDGET_NAME_PROC)};
29 } // namespace
30
OverlayState()31 OverlayState::OverlayState() : mEnabledWidgetCount(0), mOverlayWidgets{} {}
32 OverlayState::~OverlayState() = default;
33
Overlay(rx::GLImplFactory * factory)34 Overlay::Overlay(rx::GLImplFactory *factory)
35 : mLastPerSecondUpdate(0), mImplementation(factory->createOverlay(mState))
36 {}
37 Overlay::~Overlay() = default;
38
init()39 void Overlay::init()
40 {
41 initOverlayWidgets();
42 mLastPerSecondUpdate = angle::GetCurrentSystemTime();
43
44 ASSERT(std::all_of(
45 mState.mOverlayWidgets.begin(), mState.mOverlayWidgets.end(),
46 [](const std::unique_ptr<overlay::Widget> &widget) { return widget.get() != nullptr; }));
47
48 enableOverlayWidgetsFromEnvironment();
49 }
50
destroy(const gl::Context * context)51 void Overlay::destroy(const gl::Context *context)
52 {
53 ASSERT(mImplementation);
54 mImplementation->onDestroy(context);
55 }
56
enableOverlayWidgetsFromEnvironment()57 void Overlay::enableOverlayWidgetsFromEnvironment()
58 {
59 std::vector<std::string> enabledWidgets = angle::GetStringsFromEnvironmentVarOrAndroidProperty(
60 "ANGLE_OVERLAY", "debug.angle.overlay", ":");
61
62 for (const std::pair<const char *, WidgetId> &widgetName : kWidgetNames)
63 {
64 if (std::find(enabledWidgets.begin(), enabledWidgets.end(), widgetName.first) !=
65 enabledWidgets.end())
66 {
67 mState.mOverlayWidgets[widgetName.second]->enabled = true;
68 ++mState.mEnabledWidgetCount;
69 }
70 }
71 }
72
onSwap() const73 void Overlay::onSwap() const
74 {
75 // Increment FPS counter.
76 getPerSecondWidget(WidgetId::FPS)->add(1);
77
78 // Update per second values every second.
79 double currentTime = angle::GetCurrentSystemTime();
80 double timeDiff = currentTime - mLastPerSecondUpdate;
81 if (timeDiff >= 1.0)
82 {
83 for (const std::unique_ptr<overlay::Widget> &widget : mState.mOverlayWidgets)
84 {
85 if (widget->type == WidgetType::PerSecond)
86 {
87 overlay::PerSecond *perSecond =
88 reinterpret_cast<overlay::PerSecond *>(widget.get());
89 perSecond->lastPerSecondCount = static_cast<size_t>(perSecond->count / timeDiff);
90 perSecond->count = 0;
91 }
92 }
93 mLastPerSecondUpdate += 1.0;
94 }
95 }
96
MockOverlay(rx::GLImplFactory * implFactory)97 MockOverlay::MockOverlay(rx::GLImplFactory *implFactory) {}
98 MockOverlay::~MockOverlay() = default;
99
100 } // namespace gl
101