/*
Copyright 2005-2014 Intel Corporation.  All Rights Reserved.

The source code contained or described herein and all documents related
to the source code ("Material") are owned by Intel Corporation or its
suppliers or licensors.  Title to the Material remains with Intel
Corporation or its suppliers and licensors.  The Material is protected
by worldwide copyright laws and treaty provisions.  No part of the
Material may be used, copied, reproduced, modified, published, uploaded,
posted, transmitted, distributed, or disclosed in any way without
Intel's prior express written permission.

No license under any patent, copyright, trade secret or other
intellectual property right is granted to or conferred upon you by
disclosure or delivery of the Materials, either expressly, by
implication, inducement, estoppel or otherwise.  Any license under such
intellectual property rights must be express and approved by Intel in
writing.
*/

#include "pch.h"
#include "tbbTachyonRenderer.h"
#include <DirectXMath.h>
#include <process.h>
#include <thread>
#include "../../src/tachyon_video.h"
#include "tbb/tbb.h"

using namespace Microsoft::WRL;
using namespace Windows::Foundation;
using namespace Windows::Foundation::Collections;
using namespace Windows::UI::Core;
using namespace DirectX;

tbbTachyonRenderer::tbbTachyonRenderer() :
    m_renderNeeded(true)
{
}

tbbTachyonRenderer::~tbbTachyonRenderer()
{
}

void tbbTachyonRenderer::CreateDeviceIndependentResources()
{
    DirectXBase::CreateDeviceIndependentResources();

    DX::ThrowIfFailed(
        m_dwriteFactory->CreateTextFormat(
        L"Segoe UI",
        nullptr,
        DWRITE_FONT_WEIGHT_NORMAL,
        DWRITE_FONT_STYLE_NORMAL,
        DWRITE_FONT_STRETCH_NORMAL,
        32.0f,
        L"en-US",
        &m_textFormat
        )
        );

    DX::ThrowIfFailed(
        m_textFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING)
        );

}

unsigned int __stdcall example_main(void*);

float g_ratiox, g_ratioy;
extern unsigned int *g_pImg;
extern int g_sizex, g_sizey;
extern int global_xsize, global_ysize;
extern int volatile global_number_of_threads;
extern volatile long global_startTime;
extern volatile long global_elapsedTime;

#define SHOW_TEXT 1

void tbbTachyonRenderer::CreateDeviceResources()
{

    DirectXBase::CreateDeviceResources();

    DX::ThrowIfFailed(
        m_d2dContext->CreateSolidColorBrush(
        D2D1::ColorF(D2D1::ColorF::Green),
        &m_Brush
        )
        );

    D2D1_BITMAP_PROPERTIES1 properties = D2D1::BitmapProperties1(
        D2D1_BITMAP_OPTIONS_TARGET,
        D2D1::PixelFormat(
        DXGI_FORMAT_R8G8B8A8_UNORM,
        D2D1_ALPHA_MODE_IGNORE
        )
        );


    //Setting manual rendering size
    global_xsize = 800;
    global_ysize = int(global_xsize/m_window->Bounds.Width*m_window->Bounds.Height);
    D2D1_SIZE_U opacityBitmapSize = D2D1::SizeU(global_xsize, global_ysize);

    DX::ThrowIfFailed(
        m_d2dContext->CreateBitmap(
        opacityBitmapSize,
        (BYTE*)g_pImg,
        sizeof(unsigned int)*g_sizex,
        &properties,
        &m_opacityBitmap
        )
        );

    m_d2dContext->SetTarget(m_opacityBitmap.Get());
    m_d2dContext->BeginDraw();

    m_d2dContext->Clear(D2D1::ColorF(D2D1::ColorF::Black, 0.0f));

    DX::ThrowIfFailed(
        m_d2dContext->EndDraw()
        );

    std::thread* thread_tmp=new std::thread(example_main, (void*)NULL);

}

void tbbTachyonRenderer::CreateWindowSizeDependentResources()
{
    DirectXBase::CreateWindowSizeDependentResources();
}

void tbbTachyonRenderer::Render()
{
    D2D1_SIZE_F size = m_d2dContext->GetSize();

#if SHOW_TEXT
    if (video && video->running)
        global_elapsedTime=(long)(time(NULL)-global_startTime);
    
    Platform::String^ text= "Running in " +
        (global_number_of_threads == tbb::task_scheduler_init::automatic? "all hardware threads: ":
            global_number_of_threads.ToString() + (global_number_of_threads==1?" thread: ":" threads: ")) +
        global_elapsedTime.ToString() + (global_elapsedTime>1?" seconds":" second");

    g_ratiox=float(size.width/1024.0);
    g_ratioy=float(size.height/512.0);

    DX::ThrowIfFailed(
        m_dwriteFactory->CreateTextLayout(
        text->Data(),
        text->Length(),
        m_textFormat.Get(),
        1000, // maxWidth
        1000, // maxHeight
        &m_textLayout
        )
        );

    m_textLayout->GetMetrics(&m_textMetrics);
#endif

    m_d2dContext->BeginDraw();

    if(g_pImg)m_opacityBitmap->CopyFromMemory( NULL,(BYTE*)g_pImg, sizeof(unsigned int)*g_sizex );

    m_d2dContext->DrawBitmap( m_opacityBitmap.Get(), D2D1::RectF(0,0,size.width,size.height) );

#if SHOW_TEXT
    m_d2dContext->DrawTextLayout(
        D2D1::Point2F(0.0f, 0.0f),
        m_textLayout.Get(),
        m_Brush.Get(),
        D2D1_DRAW_TEXT_OPTIONS_CLIP
        );
#endif

    HRESULT hr = m_d2dContext->EndDraw();

    if (hr == D2DERR_RECREATE_TARGET){
        m_d2dContext->SetTarget(nullptr);
        m_d2dTargetBitmap = nullptr;
        CreateWindowSizeDependentResources();
    }else{
        DX::ThrowIfFailed(hr);
    }

    m_renderNeeded = false;
}

