FrontPanelLogo.cpp

//--------------------------------------------------------------------------------------
// FrontPanelLogo.cpp
//
// Advanced Technology Group (ATG)
// Copyright (C) Microsoft Corporation. All rights reserved.
//--------------------------------------------------------------------------------------

#include "pch.h"
#include "FrontPanelLogo.h"

#include "ATGColors.h"

extern void ExitSample() noexcept;

using namespace DirectX;
using namespace ATG;
using Microsoft::WRL::ComPtr;

Sample::Sample() :
    m_frame(0)
{
    // Renders only 2D, so no need for a depth buffer.
    m_deviceResources = std::make_unique<DX::DeviceResources>(DXGI_FORMAT_B8G8R8A8_UNORM, DXGI_FORMAT_UNKNOWN);
    if (IsXboxFrontPanelAvailable())
    {
        // Get the default front panel
        DX::ThrowIfFailed(GetDefaultXboxFrontPanel(m_frontPanelControl.ReleaseAndGetAddressOf()));

        // Initialize the FrontPanelDisplay object
        m_frontPanelDisplay = std::make_unique<FrontPanelDisplay>(m_frontPanelControl.Get());

        // Load the logo image
        m_frontPanelDisplay->LoadWICFromFile(L"Assets\\FrontPanelLogo.png");
    }
}

// Initialize the Direct3D resources required to run.
void Sample::Initialize(IUnknown* window)
{
    m_gamePad = std::make_unique<GamePad>();

    m_deviceResources->SetWindow(window);

    m_deviceResources->CreateDeviceResources();  
    CreateDeviceDependentResources();

    m_deviceResources->CreateWindowSizeDependentResources();
    CreateWindowSizeDependentResources();
}

#pragma region Frame Update
// Executes basic render loop.
void Sample::Tick()
{
    PIXBeginEvent(PIX_COLOR_DEFAULT, L"Frame %llu", m_frame);

    m_timer.Tick([&]()
    {
        Update(m_timer);
    });

    Render();

    PIXEndEvent();
    m_frame++;
}

// Updates the world.
void Sample::Update(DX::StepTimer const&)
{
    PIXBeginEvent(PIX_COLOR_DEFAULT, L"Update");

    if (m_frontPanelControl)
    {
        // wait a few frames and then this only needs to be called once
        if (m_timer.GetFrameCount() == 10)
        {
            m_frontPanelDisplay->Present();
        }
    }

    auto pad = m_gamePad->GetState(0);
    if (pad.IsConnected())
    {
        m_gamePadButtons.Update(pad);

        if (pad.IsViewPressed())
        {
            ExitSample();
        }
    }
    else
    {
        m_gamePadButtons.Reset();
    }

    PIXEndEvent();
}
#pragma endregion

#pragma region Frame Render
// Draws the scene.
void Sample::Render()
{
    // Don't try to render anything before the first Update.
    if (m_timer.GetFrameCount() == 0)
    {
        return;
    }

    // Prepare the render target to render a new frame.
    m_deviceResources->Prepare();
    Clear();

    auto context = m_deviceResources->GetD3DDeviceContext();
    PIXBeginEvent(context, PIX_COLOR_DEFAULT, L"Render");

    auto output = m_deviceResources->GetOutputSize();

    auto safe = SimpleMath::Viewport::ComputeTitleSafeArea(output.right, output.bottom);

    m_batch->Begin();
    m_batch->Draw(m_background.Get(), output);
    m_batch->End();

    PIXEndEvent(context);

    // Show the new frame.
    PIXBeginEvent(context, PIX_COLOR_DEFAULT, L"Present");
    m_deviceResources->Present();
    m_graphicsMemory->Commit();
    PIXEndEvent(context);
}

// Helper method to clear the back buffers.
void Sample::Clear()
{
    auto context = m_deviceResources->GetD3DDeviceContext();
    PIXBeginEvent(context, PIX_COLOR_DEFAULT, L"Clear");

    // Clear the views.
    auto renderTarget = m_deviceResources->GetRenderTargetView();

    context->ClearRenderTargetView(renderTarget, ATG::Colors::Background);

    context->OMSetRenderTargets(1, &renderTarget, nullptr);

    // Set the viewport.
    auto viewport = m_deviceResources->GetScreenViewport();
    context->RSSetViewports(1, &viewport);

    PIXEndEvent(context);
}
#pragma endregion

#pragma region Message Handlers
// Message handlers
void Sample::OnSuspending()
{
    auto context = m_deviceResources->GetD3DDeviceContext();
    context->Suspend(0);
}

void Sample::OnResuming()
{
    auto context = m_deviceResources->GetD3DDeviceContext();
    context->Resume();
    m_timer.ResetElapsedTime();
    m_gamePadButtons.Reset();
}
#pragma endregion

#pragma region Direct3D Resources
// These are the resources that depend on the device.
void Sample::CreateDeviceDependentResources()
{
    auto device = m_deviceResources->GetD3DDevice();

    m_graphicsMemory = std::make_unique<GraphicsMemory>(device, m_deviceResources->GetBackBufferCount());

    auto context = m_deviceResources->GetD3DDeviceContext();
    m_batch = std::make_unique<SpriteBatch>(context);

    DX::ThrowIfFailed(
        CreateWICTextureFromFile(device, L"Assets\\FullScreenLogo.png", nullptr, m_background.ReleaseAndGetAddressOf())
    );
}

// Allocate all memory resources that change on a window SizeChanged event.
void Sample::CreateWindowSizeDependentResources()
{
}
#pragma endregion