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#include <arduinoFFT.h>
#include "fabgl.h"

// VGA 显示
fabgl::VGA16Controller DisplayController;
Canvas cv(&DisplayController);

//ZivDebug #define SAMPLES         1024          // Must be a power of 2
#define SAMPLES         256          // Must be a power of 2
#define SAMPLING_FREQ   40000         // Hz, must be 40000 or less due to ADC conversion time. Determines maximum frequency that can be analysed by the FFT Fmax=sampleF/2.
#define AMPLITUDE       1000          // Depending on your audio source level, you may need to alter this value. Can be used as a 'sensitivity' control.
#define AUDIO_IN_PIN    A0            // Signal in on this pin

#define NOISE           500           // Used as a crude noise filter, values below this are ignored
const uint8_t kMatrixWidth = 16;      // Matrix width
const uint8_t kMatrixHeight = 16;     // Matrix height

#define NUM_BANDS       16            // To change this, you will need to change the bunch of if statements describing the mapping from bins to bands

#define BAR_WIDTH      (kMatrixWidth  / (NUM_BANDS - 1))  // If width >= 8 light 1 LED width per bar, >= 16 light 2 LEDs width bar etc
#define TOP            (kMatrixHeight - 0)                // Don't allow the bars to go offscreen

// Sampling and FFT stuff
unsigned int sampling_period_us;
byte peak[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; // The length of these arrays must be >= NUM_BANDS
int oldBarHeights[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
int bandValues[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
double vReal[SAMPLES];
double vImag[SAMPLES];
unsigned long newTime;

arduinoFFT FFT = arduinoFFT(vReal, vImag, SAMPLES, SAMPLING_FREQ);

unsigned long int Elsp1;
int h[16];
int Height,Width;

void setup() {
  Serial.begin(115200);
  sampling_period_us = round(1000000 * (1.0 / SAMPLING_FREQ));
  DisplayController.begin();
  // 设定分辨率
  DisplayController.setResolution(VGA_640x400_60Hz);
  Height=cv.getHeight();
  Width=cv.getWidth();

  cv.setBrushColor(Color::Red    );
  
  // get a font for about 40x14 text screen
  cv.selectFont(&fabgl::FONT_8x8);

  cv.setGlyphOptions(GlyphOptions().FillBackground(true));
  
}

void loop() {
  static int64_t stime  = esp_timer_get_time();
  static int FPS        = 0;
  static int FPSCounter = 0;
  

  // Reset bandValues[]
  for (int i = 0; i < NUM_BANDS; i++) {
    bandValues[i] = 0;
  }

  // Sample the audio pin
  for (int i = 0; i < SAMPLES; i++) {
    newTime = micros();
    vReal[i] = analogRead(AUDIO_IN_PIN); // A conversion takes about 9.7uS on an ESP32
    vImag[i] = 0;
    while ((micros() - newTime) < sampling_period_us) {
      /* chill */
    }
  }

  // Compute FFT
  FFT.DCRemoval();
  FFT.Windowing(FFT_WIN_TYP_HAMMING, FFT_FORWARD);
  FFT.Compute(FFT_FORWARD);
  FFT.ComplexToMagnitude();

  // Analyse FFT results
  for (int i = 2; i < (SAMPLES / 2); i++) {    // Don't use sample 0 and only first SAMPLES/2 are usable. Each array element represents a frequency bin and its value the amplitude.
    if (vReal[i] > NOISE) {                    // Add a crude noise filter

      //16 bands, 12kHz top band
      if (i <= 2 )           bandValues[0]  += (int)vReal[i];
      if (i > 2   && i <= 3  ) bandValues[1]  += (int)vReal[i];
      if (i > 3   && i <= 5  ) bandValues[2]  += (int)vReal[i];
      if (i > 5   && i <= 7  ) bandValues[3]  += (int)vReal[i];
      if (i > 7   && i <= 9  ) bandValues[4]  += (int)vReal[i];
      if (i > 9   && i <= 13 ) bandValues[5]  += (int)vReal[i];
      if (i > 13  && i <= 18 ) bandValues[6]  += (int)vReal[i];
      if (i > 18  && i <= 25 ) bandValues[7]  += (int)vReal[i];
      if (i > 25  && i <= 36 ) bandValues[8]  += (int)vReal[i];
      if (i > 36  && i <= 50 ) bandValues[9]  += (int)vReal[i];
      if (i > 50  && i <= 69 ) bandValues[10] += (int)vReal[i];
      if (i > 69  && i <= 97 ) bandValues[11] += (int)vReal[i];
      if (i > 97  && i <= 135) bandValues[12] += (int)vReal[i];
      if (i > 135 && i <= 189) bandValues[13] += (int)vReal[i];
      if (i > 189 && i <= 264) bandValues[14] += (int)vReal[i];
      if (i > 264          ) bandValues[15] += (int)vReal[i];
    }
  }

  // Process the FFT data into bar heights
  for (byte band = 0; band < NUM_BANDS; band++) {

    // Scale the bars for the display
    int barHeight = bandValues[band] / AMPLITUDE;
    if (barHeight > TOP) barHeight = TOP;

    // Small amount of averaging between frames
    barHeight = ((oldBarHeights[band] * 1) + barHeight) / 2;

    // Move peak up
    if (barHeight > peak[band]) {
      peak[band] = min(TOP, barHeight);
    }
    h[band] = barHeight;

    // Save oldBarHeights for averaging later
    oldBarHeights[band] = barHeight;

  }

  if (millis() - Elsp1 > 10) {
    for (byte band = 0; band < NUM_BANDS; band++)
      if (peak[band] > 0) peak[band] -= 1;


    cv.setBrushColor(Color::Black    );
    cv.clear();
    cv.setBrushColor(Color::Red    );
    for (int i = 0; i < 16; i++) {
      if (h[i] != 0) {
        //cv.fillRectangle(cv.getWidth()*i / 16, 0, cv.getWidth() * (i + 1) / 16, cv.getHeight() *h[i] / 16);
        cv.fillRectangle(Width*i / 16, Height -1 , Width * (i + 1) / 16-1, (Height-1) *(16-h[i]) / 16);
        
      }
      Serial.print(h[i], HEX);
      Serial.print("");
    }
    Serial.println("");

    Elsp1 = millis();
  }
  
      if (esp_timer_get_time() - stime > 1000000) {
    // calculate FPS
    FPS = FPSCounter;
    stime = esp_timer_get_time();
    FPSCounter = 0;
  }
  ++FPSCounter;

  // display test state and FPS
  cv.setPenColor(Color::Blue);
  cv.setBrushColor(Color::Yellow);
  cv.drawTextFmt(80, 5, "%d FPS ",  FPS);
}

#include  <Uefi.h>
#include  <Library/UefiLib.h>
#include  <Library/ShellCEntryLib.h>

/***
  Print a welcoming message.

  Establishes the main structure of the application.

  @retval  0         The application exited normally.
  @retval  Other     An error occurred.
***/
INTN
EFIAPI
ShellAppMain (
  IN UINTN Argc,
  IN CHAR16 **Argv
  )
{
  #pragma message (__FILE__)
    return(0);
}

"C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.29.30133\bin\Hostx86\x64\cl.exe" /Foc:\buildbs\edk2-edk2-stable202205\Build\AppPkg\DEBUG_VS2019\X64\AppPkg\Applications\HelloMacro\HelloMacro\OUTPUT\.\ /showIncludes /nologo /c /WX /GS- /W4 /Gs32768 /D UNICODE /O1b2s /GL /Gy /FIAutoGen.h /EHs-c- /GR- /GF /Z7 /Gw /X /Zc:wchar_t /D UEFI_C_SOURCE /Wv:11 /Ic:\buildbs\edk2-edk2-stable202205\AppPkg\Applications\HelloMacro  /Ic:\buildbs\edk2-edk2-stable202205\Build\AppPkg\DEBUG_VS2019\X64\AppPkg\Applications\HelloMacro\HelloMacro\DEBUG  /Ic:\buildbs\edk2-edk2-stable202205\MdePkg  /Ic:\buildbs\edk2-edk2-stable202205\MdePkg\Include  /Ic:\buildbs\edk2-edk2-stable202205\MdePkg\Test\UnitTest\Include  /Ic:\buildbs\edk2-edk2-stable202205\MdePkg\Include\X64  /Ic:\buildbs\edk2-edk2-stable202205\ShellPkg  /Ic:\buildbs\edk2-edk2-stable202205\ShellPkg\Include @c:\buildbs\edk2-edk2-stable202205\Build\AppPkg\DEBUG_VS2019\X64\AppPkg\Applications\HelloMacro\HelloMacro\OUTPUT\cc_resp_1.txt

This is a test message comes from 
www.lab-z.com

!if $(E1000_ENABLE)
  FILE DRIVER = 5D695E11-9B3F-4b83-B25F-4A8D5D69BE07 {
    SECTION PE32 = Intel3.5/EFIX64/E3522X2.EFI
  }
!endif

#LABZDebug_Start
FILE FREEFORM = C3E36D09-2023-0829-A857-D5288FE33E28 Align=4K {
  SECTION RAW = OvmfPkg/LabzBin/message.txt
}
#LABZDebug_End

!include NetworkPkg/Network.fdf.inc
  INF  OvmfPkg/VirtioNetDxe/VirtioNet.inf

#include  <Uefi.h>
#include  <Library/UefiLib.h>
#include  <Library/ShellCEntryLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include  "PiFirmwareVolume.h"
#include  "PiFirmwareFile.h"
#include  "FirmwareVolume2.h"

INTN
EFIAPI
ShellAppMain (
    IN UINTN Argc,
    IN CHAR16 **Argv
)
{
	CONST EFI_GUID    NameGuid= { 0xC3E36D09, 0x2023, 0x0829,
		{ 0xA8, 0x57, 0xD5, 0x28, 0x8F, 0xE3, 0x3E, 0x28 }
	};
	EFI_SECTION_TYPE  SectionType=EFI_SECTION_RAW;

	VOID             *Buffer=NULL;
	UINTN             Size=0;
	UINT32            AuthenticationStatus=0;
	EFI_STATUS  	  Status;
	EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;

	Status = gBS->LocateProtocol (
	             &gEfiFirmwareVolume2ProtocolGuid,
	             NULL,
	             (VOID **) &Fv
	         );
	if (EFI_ERROR (Status))
	{
		Print(L"[EFI_FIRMWARE_VOLUME2_PROTOCOL not found]\n");
		return EFI_NOT_FOUND;
	}
	//
	// Read desired section content in NameGuid file
	//
	Status      = Fv->ReadSection (
	                  Fv,
	                  &NameGuid,
	                  SectionType,
	                  0,
	                  &Buffer,
	                  &Size,
	                  &AuthenticationStatus);
	UINT8 *P=(UINT8 *)Buffer;
	Print(L"[EFI_FIRMWARE_VOLUME2_PROTOCOL %r]\n",Status);

	for (UINTN i=0; i<Size; i++)
	{
		Print(L"%c",P[i]);
	}
	Print(L"\n");

	return(0);
}

“__VA_ARGS__是一个预处理宏，用于表示可变数量的参数。当在宏定义中使用__VA_ARGS__，它会自动展开为传递给宏的实际参数。以下是一个示例使用__VA_ARGS__的宏定义代码：
#include <stdio.h>
 
#define PRINT_ARGS(...) printf(__VA_ARGS__)
 
int main() {
    PRINT_ARGS("Hello, %s!\n", "World");
    return 0;
}
上述代码中，宏定义PRINT_ARGS使用__VA_ARGS__来表示可变数量的参数，并通过printf函数打印参数。在main函数中，我们调用PRINT_ARGS宏来打印字符串"Hello, World!"。运行结果为输出"Hello, World!"。
总结：__VA_ARGS__是一个用于表示可变数量参数的预处理宏，在宏定义中使用它可以方便地处理不定数量的参数。“----来自百度

#include  <Uefi.h>
#include  <Library/UefiLib.h>
#include  <Library/ShellCEntryLib.h>

#define MY_TABLE_INIT(Vid,Did,...) \
{ \
  { Vid, Did, (sizeof((UINT32[]){__VA_ARGS__})/sizeof(UINT32)) }, \
  { __VA_ARGS__ } \
}

typedef struct {
  UINT16  VendorId;
  UINT16  DeviceId;
  UINT16  DataDwords;
} MY_TABLE_HEADER;

typedef struct  {
  MY_TABLE_HEADER  Header;
  UINT32 Data[];
} ONE_TABLE;

ONE_TABLE Table = MY_TABLE_INIT (
  0x1234, 0x5678,
  
  // Raw Data
  0x01234567,
  0x89ABCDEF,
  0xFEDCBA98,
  0x76543210
);

INTN
EFIAPI
ShellAppMain (
  IN UINTN Argc,
  IN CHAR16 **Argv
  )
{
  Print(L"Table:\n");
  Print(L"   VendorId:[%X]\n",Table.Header.VendorId);
  Print(L"   DeviceId:[%X]\n",Table.Header.DeviceId);
  Print(L"   Size    :[%X]\n",Table.Header.DataDwords);  
  
  for (int i=0;i<Table.Header.DataDwords;i++) {
	  Print(L"[%04X]",Table.Data[i]);  
  }
  Print(L"\n");
  return(0);
}

typedef struct  {
  MY_TABLE_HEADER  Header;
  UINT32 Data[];
} ONE_TABLE;

typedef struct {
  UINT16  VendorId;
  UINT16  DeviceId;
  UINT16  DataDwords;
} MY_TABLE_HEADER;

#define MY_TABLE_INIT(Vid,Did,...) \
{ \
  { Vid, Did, (sizeof((UINT32[]){__VA_ARGS__})/sizeof(UINT32)) }, \
  { __VA_ARGS__ } \
}

ONE_TABLE Table = MY_TABLE_INIT (
  0x1234, 0x5678,
  
  // Raw Data
  0x01234567,
  0x89ABCDEF,
  0xFEDCBA98,
  0x76543210
);

CHOICE /T 3 /C ync /CS /D y

@echo off
set "t=%time%"
::You code start here

::You code end here
set "t1=%time%"

if "%t1:~,2%" lss "%t:~,2%" set "add=+24"
set /a "times=(%t1:~,2%-%t:~,2%%add%)*3600+(1%t1:~3,2%%%100-1%t:~3,2%%%100)*60+(1%t1:~6,2%%%100-1%t:~6,2%%%100)" 
echo Time Used %times% Seconds
pause

@echo off
set "t=%time%"
::You code start here
CHOICE /T 3 /C ync /CS /D y
::You code end here
set "t1=%time%"

if "%t1:~,2%" lss "%t:~,2%" set "add=+24"
set /a "times=(%t1:~,2%-%t:~,2%%add%)*3600+(1%t1:~3,2%%%100-1%t:~3,2%%%100)*60+(1%t1:~6,2%%%100-1%t:~6,2%%%100)" 
echo Time Used %times% Seconds
pause

Sub Merge_Sheets()
    'Insert a new worksheet
    Sheets.Add
     
    'Rename the new worksheet
    ActiveSheet.Name = "ProfEx_Merged_Sheet"
     
    'Loop through worksheets and copy the to your new worksheet
    For Each ws In Worksheets
        ws.Activate
         
        'Don't copy the merged sheet again
        If ws.Name <> "ProfEx_Merged_Sheet" Then
            ws.UsedRange.Select
            Selection.Copy
            Sheets("ProfEx_Merged_Sheet").Activate
             
            'Select the last filled cell
            ActiveSheet.Range("A1048576").Select
            Selection.End(xlUp).Select
             
            'For the first worksheet you don't need to go down one cell
            If ActiveCell.Address <> "$A$1" Then
                ActiveCell.Offset(1, 0).Select
            End If
             
            'Instead of just paste, you can also paste as link, as values etc.
            ActiveSheet.Paste
         
        End If
         
    Next
End Sub

#include <Wire.h>
 
byte i2c_rcv=0;               // data received from I2C bus
 
void setup() {
  Wire.begin(0x08);           // join I2C bus as Slave with address 0x08
 
  // event handler initializations
  Wire.onReceive(dataRcv);    // register an event handler for received data
  Wire.onRequest(dataRqst);   // register an event handler for data request
  Serial.begin(115200);
}
 
void loop() {
}
 
//received data handler function
void dataRcv(int numBytes) {
  Serial.print("Slave Received ");
  Serial.print(numBytes);
  Serial.println("Bytes");
  while (Wire.available()) { // read all bytes received
    i2c_rcv = Wire.read();
    Serial.print("[");
    Serial.print(i2c_rcv);
    Serial.print("]");
  }
  Serial.println("");
}
 
// requests data handler function
void dataRqst() {
    Wire.write(i2c_rcv); // send potentiometer position
    Serial.print("Slave send ");
    Serial.print(i2c_rcv,HEX);
}