Moved Native App from master repository

1 files changed, 266 insertions, 0 deletions

diff --git a/NativeApp/src/Android/AndroidAppBase.cpp b/NativeApp/src/Android/AndroidAppBase.cpp
new file mode 100644
index 0000000..f3e341c
--- /dev/null
+++ b/NativeApp/src/Android/AndroidAppBase.cpp
@@ -0,0 +1,266 @@
+/*     Copyright 2015-2018 Egor Yusov
+ *  
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF ANY PROPRIETARY RIGHTS.
+ *
+ *  In no event and under no legal theory, whether in tort (including negligence), 
+ *  contract, or otherwise, unless required by applicable law (such as deliberate 
+ *  and grossly negligent acts) or agreed to in writing, shall any Contributor be
+ *  liable for any damages, including any direct, indirect, special, incidental, 
+ *  or consequential damages of any character arising as a result of this License or 
+ *  out of the use or inability to use the software (including but not limited to damages 
+ *  for loss of goodwill, work stoppage, computer failure or malfunction, or any and 
+ *  all other commercial damages or losses), even if such Contributor has been advised 
+ *  of the possibility of such damages.
+ */
+
+#include "AndroidAppBase.h"
+#include "Timer.h"
+
+#include <android/sensor.h>
+//#include <android/log.h>
+//#include <android_native_app_glue.h>
+#include <android/native_window_jni.h>
+//#include <cpu-features.h>
+
+namespace Diligent
+{
+
+int AndroidAppBase::InitDisplay()
+{
+    if( !initialized_resources_ )
+    {
+        Initialize();
+
+        LoadResources();
+        initialized_resources_ = true;
+    }
+    else
+    {
+        // initialize OpenGL ES and EGL
+        if( EGL_SUCCESS != Resume( app_->window ) )
+        {
+            UnloadResources();
+            LoadResources();
+        }
+    }
+
+    ShowUI();
+
+    //tap_camera_.SetFlip( 1.f, -1.f, -1.f );
+    //tap_camera_.SetPinchTransformFactor( 2.f, 2.f, 8.f );
+
+    return 0;    
+}
+
+void AndroidAppBase::InitSensors()
+{
+    sensor_manager_ = ASensorManager_getInstance();
+    accelerometer_sensor_ = ASensorManager_getDefaultSensor( sensor_manager_, ASENSOR_TYPE_ACCELEROMETER );
+    sensor_event_queue_ = ASensorManager_createEventQueue( sensor_manager_, app_->looper, LOOPER_ID_USER, NULL, NULL );
+}
+
+//
+// Just the current frame in the display.
+//
+void AndroidAppBase::DrawFrame()
+{
+    // APP_CMD_CONFIG_CHANGED event is generated seveal frames
+    // before the screen is actually resized. The only robust way
+    // to detect window resize is to check it very frame
+    if(CheckWindowSizeChanged())
+        WindowResize(0,0);
+
+    float fFPS;
+    if( monitor_.Update( fFPS ) )
+    {
+        UpdateFPS( fFPS );
+    }
+
+    static Diligent::Timer Timer;
+    static double PrevTime = Timer.GetElapsedTime();
+    auto CurrTime = Timer.GetElapsedTime();
+    auto ElapsedTime = CurrTime - PrevTime;
+    PrevTime = CurrTime;
+
+    Update(CurrTime, ElapsedTime);
+
+    Render();
+
+    Present();
+    //if( EGL_SUCCESS != pRenderDevice_->Present() )
+    //{
+    //    UnloadResources();
+    //    LoadResources();
+    //}
+}
+
+
+//
+// Process the next input event.
+//
+int32_t AndroidAppBase::HandleInput( android_app* app, AInputEvent* event )
+{
+    AndroidAppBase* eng = (AndroidAppBase*)app->userData;
+    return eng->HandleInput( event );
+}
+
+//
+// Process the next main command.
+//
+void AndroidAppBase::HandleCmd( struct android_app* app, int32_t cmd )
+{
+    AndroidAppBase* eng = (AndroidAppBase*)app->userData;
+    switch( cmd )
+    {
+    case APP_CMD_SAVE_STATE:
+        break;
+
+    case APP_CMD_INIT_WINDOW:
+        // The window is being shown, get it ready.
+        if( app->window != NULL )
+        {
+            eng->InitDisplay();
+            eng->DrawFrame();
+        }
+        break;
+
+    case APP_CMD_CONFIG_CHANGED:
+    case APP_CMD_WINDOW_RESIZED:
+        // This does not work as the screen resizes few frames
+        // after the event has been received
+        // eng->WindowResize(0,0);
+        break;
+
+    case APP_CMD_TERM_WINDOW:
+        // The window is being hidden or closed, clean it up.
+        eng->TermDisplay();
+        eng->has_focus_ = false;
+        break;
+
+    case APP_CMD_STOP:
+        break;
+
+    case APP_CMD_GAINED_FOCUS:
+        eng->ResumeSensors();
+        //Start animation
+        eng->has_focus_ = true;
+        break;
+
+    case APP_CMD_LOST_FOCUS:
+        eng->SuspendSensors();
+        // Also stop animating.
+        eng->has_focus_ = false;
+        eng->DrawFrame();
+        break;
+
+    case APP_CMD_LOW_MEMORY:
+        //Free up GL resources
+        eng->TrimMemory();
+        break;
+    }
+}
+
+//-------------------------------------------------------------------------
+//Sensor handlers
+//-------------------------------------------------------------------------
+void AndroidAppBase::ProcessSensors( int32_t id )
+{
+    // If a sensor has data, process it now.
+    if( id == LOOPER_ID_USER )
+    {
+        if( accelerometer_sensor_ != NULL )
+        {
+            ASensorEvent event;
+            while( ASensorEventQueue_getEvents( sensor_event_queue_, &event, 1 ) > 0 )
+            {
+            }
+        }
+    }
+}
+
+void AndroidAppBase::ResumeSensors()
+{
+    // When our app gains focus, we start monitoring the accelerometer.
+    if( accelerometer_sensor_ != NULL )
+    {
+        ASensorEventQueue_enableSensor( sensor_event_queue_, accelerometer_sensor_ );
+        // We'd like to get 60 events per second (in us).
+        ASensorEventQueue_setEventRate( sensor_event_queue_, accelerometer_sensor_,
+            (1000L / 60) * 1000 );
+    }
+}
+
+void AndroidAppBase::SuspendSensors()
+{
+    // When our app loses focus, we stop monitoring the accelerometer.
+    // This is to avoid consuming battery while not being used.
+    if( accelerometer_sensor_ != NULL )
+    {
+        ASensorEventQueue_disableSensor( sensor_event_queue_, accelerometer_sensor_ );
+    }
+}
+
+//-------------------------------------------------------------------------
+//Misc
+//-------------------------------------------------------------------------
+void AndroidAppBase::SetState( android_app* state, const char* native_activity_class_name )
+{
+    app_ = state;
+    native_activity_class_name_ = native_activity_class_name;
+    doubletap_detector_.SetConfiguration( app_->config );
+    drag_detector_.SetConfiguration( app_->config );
+    pinch_detector_.SetConfiguration( app_->config );
+}
+
+bool AndroidAppBase::IsReady()
+{
+    if( has_focus_ )
+        return true;
+
+    return false;
+}
+
+//void Engine::TransformPosition( ndk_helper::Vec2& vec )
+//{
+//    vec = ndk_helper::Vec2( 2.0f, 2.0f ) * vec
+//        / ndk_helper::Vec2( pDeviceContext_->GetMainBackBufferDesc().Width, pDeviceContext_->GetMainBackBufferDesc().Height )
+//        - ndk_helper::Vec2( 1.f, 1.f );
+//}
+
+void AndroidAppBase::ShowUI()
+{
+    JNIEnv *jni;
+    app_->activity->vm->AttachCurrentThread( &jni, NULL );
+
+    //Default class retrieval
+    jclass clazz = jni->GetObjectClass( app_->activity->clazz );
+    jmethodID methodID = jni->GetMethodID( clazz, "showUI", "()V" );
+    jni->CallVoidMethod( app_->activity->clazz, methodID );
+
+    app_->activity->vm->DetachCurrentThread();
+    return;
+}
+
+void AndroidAppBase::UpdateFPS( float fFPS )
+{
+    JNIEnv *jni;
+    app_->activity->vm->AttachCurrentThread( &jni, NULL );
+
+    //Default class retrieval
+    jclass clazz = jni->GetObjectClass( app_->activity->clazz );
+    jmethodID methodID = jni->GetMethodID( clazz, "updateFPS", "(F)V" );
+    jni->CallVoidMethod( app_->activity->clazz, methodID, fFPS );
+
+    app_->activity->vm->DetachCurrentThread();
+    return;
+}
+
+}