internal static void ReadConsoleOutputCJK(SafeFileHandle consoleHandle, uint codePage, Coordinates origin, Rectangle contentsRegion, ref BufferCell[,] contents)
{
int bottom = contentsRegion.Bottom - contentsRegion.Top + 1;
int right = contentsRegion.Right - contentsRegion.Left + 1;
if (bottom <= 0 || right <= 0)
{
ConsoleControl.tracer.WriteLine("invalid contents region", new object[0]);
return;
}
else
{
int num = 0x800;
ConsoleControl.SMALL_RECT y;
y.Top = (short)origin.Y;
int y1 = bottom;
while (y1 > 0)
{
y.Left = (short)origin.X;
ConsoleControl.COORD cOORD;
cOORD.X = (short)Math.Min(right, num);
cOORD.Y = (short)Math.Min(y1, num / cOORD.X);
y.Bottom = (short)(y.Top + cOORD.Y - 1);
int top = bottom - y1 + contentsRegion.Top;
int x = right;
while (x > 0)
{
int left = right - x + contentsRegion.Left;
y.Right = (short)(y.Left + cOORD.X - 1);
Rectangle rectangle = new Rectangle(left, top, left + cOORD.X - 1, top + cOORD.Y - 1);
bool flag = ConsoleControl.ReadConsoleOutputCJKSmall(consoleHandle, codePage, new Coordinates(y.Left, y.Top), rectangle, ref contents);
if (flag)
{
x = x - cOORD.X;
y.Left = (short)(y.Left + cOORD.X);
if (x > 0 && cOORD.Y == 1 && contents[rectangle.Bottom, rectangle.Right].Character == ' ')
{
x++;
y.Left = (short)(y.Left - 1);
}
cOORD.X = (short)Math.Min(x, num);
}
else
{
if (num >= 2)
{
num = num / 2;
if (right != x)
{
cOORD.X = (short)Math.Min(x, num);
}
else
{
cOORD.Y = 0;
break;
}
}
else
{
int lastWin32Error = Marshal.GetLastWin32Error();
HostException hostException = ConsoleControl.CreateHostException(lastWin32Error, "ReadConsoleOutput", ErrorCategory.ReadError, ConsoleControlStrings.ReadConsoleOutputExceptionTemplate);
throw hostException;
}
}
}
y1 = y1 - cOORD.Y;
y.Top = (short)(y.Top + cOORD.Y);
}
int lowerBound = contents.GetLowerBound(0);
int upperBound = contents.GetUpperBound(0);
int lowerBound1 = contents.GetLowerBound(1);
int upperBound1 = contents.GetUpperBound(1);
ConsoleControl.CONSOLE_SCREEN_BUFFER_INFO consoleScreenBufferInfo = ConsoleControl.GetConsoleScreenBufferInfo(consoleHandle);
ConsoleColor consoleColor = ConsoleColor.Black;
ConsoleColor consoleColor1 = ConsoleColor.Black;
ConsoleControl.WORDToColor(consoleScreenBufferInfo.Attributes, out consoleColor, out consoleColor1);
while (lowerBound <= upperBound)
{
int right1 = lowerBound1;
while (true)
{
if (contentsRegion.Top <= lowerBound && lowerBound <= contentsRegion.Bottom && contentsRegion.Left <= right1 && right1 <= contentsRegion.Right)
{
right1 = contentsRegion.Right + 1;
}
if (right1 > upperBound1)
{
break;
}
contents[lowerBound, right1] = new BufferCell(' ', consoleColor, consoleColor1, BufferCellType.Complete);
right1++;
}
lowerBound++;
}
return;
}
}
private static void ReadConsoleOutputPlain
(
ConsoleHandle consoleHandle,
Coordinates origin,
Rectangle contentsRegion,
ref BufferCell[,] contents
)
{
int rows = contentsRegion.Bottom - contentsRegion.Top + 1;
int cols = contentsRegion.Right - contentsRegion.Left + 1;
if ((rows <= 0) || cols <= 0)
{
tracer.WriteLine("invalid contents region");
return;
}
int bufferLimit = 2 * 1024; // Limit is 8K bytes as each CHAR_INFO takes 4 bytes
COORD bufferCoord;
bufferCoord.X = 0;
bufferCoord.Y = 0;
// keeps track of which screen area read
SMALL_RECT readRegion;
readRegion.Top = (short)origin.Y;
int rowsRemaining = rows;
while (rowsRemaining > 0)
{
// Iteration of columns is nested inside iteration of rows.
// If the size of contents exceeds the buffer limit, reading is
// done in blocks of size equal to the bufferlimit from left to right
// then top to bottom.
// For each iteration of rows,
// - readRegion.Left and bufferSize.X are reset
// - rowsRemaining, readRegion.Top, readRegion.Bottom, and bufferSize.Y
// are updated
// For each iteration of columns,
// - readRegion.Left, readRegion.Right and bufferSize.X are updated
readRegion.Left = (short)origin.X;
COORD bufferSize;
bufferSize.X = (short)Math.Min(cols, bufferLimit);
bufferSize.Y = (short)Math.Min
(
rowsRemaining,
bufferLimit / bufferSize.X
);
readRegion.Bottom = (short)(readRegion.Top + bufferSize.Y - 1);
// atContentsRow is at which row of contents a particular iteration is operating
int atContentsRow = rows - rowsRemaining + contentsRegion.Top;
// number of columns yet to be read
int colsRemaining = cols;
while (colsRemaining > 0)
{
readRegion.Right = (short)(readRegion.Left + bufferSize.X - 1);
// Now readRegion and bufferSize are updated.
// Call NativeMethods.ReadConsoleOutput
CHAR_INFO[] characterBuffer = new CHAR_INFO[bufferSize.Y * bufferSize.X];
bool result = NativeMethods.ReadConsoleOutput(
consoleHandle.DangerousGetHandle(),
characterBuffer,
bufferSize,
bufferCoord,
ref readRegion);
if (result == false)
{
// When WriteConsoleOutput fails, half bufferLimit
if (bufferLimit < 2)
{
int err = Marshal.GetLastWin32Error();
HostException e = CreateHostException(err, "ReadConsoleOutput",
ErrorCategory.ReadError, ConsoleControlStrings.ReadConsoleOutputExceptionTemplate);
throw e;
}
// if cols == colsRemaining, nothing is guaranteed read in this pass and
// the unread area is still rectangular
bufferLimit /= 2;
if (cols == colsRemaining)
{
bufferSize.Y = 0;
break;
}
else
{
// some areas have been read. This could only happen when the number of columns
// to write is larger than bufferLimit. In that case, the algorithm reads one row
// at a time => bufferSize.Y == 1. Then, we can safely leave bufferSize.Y unchanged
// to retry with a smaller bufferSize.X.
Dbg.Assert(bufferSize.Y == 1, string.Format(CultureInfo.InvariantCulture, "bufferSize.Y should be 1, but is {0}", bufferSize.Y));
bufferSize.X = (short)Math.Min(colsRemaining, bufferLimit);
continue;
}
}
// atContentsCol is at which column of contents a particular iteration is operating
int atContentsCol = cols - colsRemaining + contentsRegion.Left;
// copy characterBuffer to contents;
int characterBufferIndex = 0;
for (int r = atContentsRow; r < bufferSize.Y + atContentsRow; r++)
{
for (int c = atContentsCol; c < bufferSize.X + atContentsCol; c++, characterBufferIndex++)
{
contents[r, c].Character = (char)
characterBuffer[characterBufferIndex].UnicodeChar;
ConsoleColor fgColor, bgColor;
WORDToColor(characterBuffer[characterBufferIndex].Attributes,
out fgColor,
out bgColor);
contents[r, c].ForegroundColor = fgColor;
contents[r, c].BackgroundColor = bgColor;
}
}
colsRemaining -= bufferSize.X;
readRegion.Left += bufferSize.X;
bufferSize.X = (short)Math.Min(colsRemaining, bufferLimit);
} // column iteration
rowsRemaining -= bufferSize.Y;
readRegion.Top += bufferSize.Y;
} // row iteration
// The following nested loop set the value of the empty cells in contents:
// character to ' '
// foreground color to console's foreground color
// background color to console's background color
int rowIndex = contents.GetLowerBound(0);
int rowEnd = contents.GetUpperBound(0);
int colBegin = contents.GetLowerBound(1);
int colEnd = contents.GetUpperBound(1);
CONSOLE_SCREEN_BUFFER_INFO bufferInfo =
GetConsoleScreenBufferInfo(consoleHandle);
ConsoleColor foreground = 0;
ConsoleColor background = 0;
WORDToColor(
bufferInfo.Attributes,
out foreground,
out background
);
while (rowIndex <= rowEnd)
{
int colIndex = colBegin;
while (true)
{
// if contents[rowIndex,colIndex] is in contentsRegion, hence a non-empty cell,
// move colIndex to one past the right end of contentsRegion
if (contentsRegion.Top <= rowIndex && rowIndex <= contentsRegion.Bottom &&
contentsRegion.Left <= colIndex && colIndex <= contentsRegion.Right)
{
colIndex = contentsRegion.Right + 1;
}
// colIndex past contents last column
if (colIndex > colEnd)
{
break;
}
contents[rowIndex, colIndex].Character = ' ';
contents[rowIndex, colIndex].ForegroundColor = foreground;
contents[rowIndex, colIndex].BackgroundColor = background;
colIndex++;
}
rowIndex++;
}
}
private static void ReadConsoleOutputPlain(SafeFileHandle consoleHandle, Coordinates origin, Rectangle contentsRegion, ref BufferCell[,] contents)
{
ConsoleColor consoleColor = ConsoleColor.Black;
ConsoleColor consoleColor1 = ConsoleColor.Black;
int bottom = contentsRegion.Bottom - contentsRegion.Top + 1;
int right = contentsRegion.Right - contentsRegion.Left + 1;
if (bottom <= 0 || right <= 0)
{
ConsoleControl.tracer.WriteLine("invalid contents region", new object[0]);
return;
}
else
{
int num = 0x800;
ConsoleControl.COORD cOORD;
cOORD.X = 0;
cOORD.Y = 0;
ConsoleControl.SMALL_RECT y;
y.Top = (short)origin.Y;
int y1 = bottom;
while (y1 > 0)
{
y.Left = (short)origin.X;
ConsoleControl.COORD cOORD1;
cOORD1.X = (short)Math.Min(right, num);
cOORD1.Y = (short)Math.Min(y1, num / cOORD1.X);
y.Bottom = (short)(y.Top + cOORD1.Y - 1);
int top = bottom - y1 + contentsRegion.Top;
int x = right;
while (x > 0)
{
y.Right = (short)(y.Left + cOORD1.X - 1);
ConsoleControl.CHAR_INFO[] cHARINFOArray = new ConsoleControl.CHAR_INFO[cOORD1.Y * cOORD1.X];
bool flag = ConsoleControl.NativeMethods.ReadConsoleOutput(consoleHandle.DangerousGetHandle(), cHARINFOArray, cOORD1, cOORD, ref y);
if (flag)
{
int left = right - x + contentsRegion.Left;
int num1 = 0;
for (int i = top; i < cOORD1.Y + top; i++)
{
int num2 = left;
while (num2 < cOORD1.X + left)
{
contents[i, num2].Character = Convert.ToChar(cHARINFOArray[num1].UnicodeChar);
ConsoleControl.WORDToColor(cHARINFOArray[num1].Attributes, out consoleColor, out consoleColor1);
contents[i, num2].ForegroundColor = consoleColor;
contents[i, num2].BackgroundColor = consoleColor1;
num2++;
num1++;
}
}
x = x - cOORD1.X;
y.Left = (short)(y.Left + cOORD1.X);
cOORD1.X = (short)Math.Min(x, num);
}
else
{
if (num >= 2)
{
num = num / 2;
if (right != x)
{
cOORD1.X = (short)Math.Min(x, num);
}
else
{
cOORD1.Y = 0;
break;
}
}
else
{
int lastWin32Error = Marshal.GetLastWin32Error();
HostException hostException = ConsoleControl.CreateHostException(lastWin32Error, "ReadConsoleOutput", ErrorCategory.ReadError, ConsoleControlStrings.ReadConsoleOutputExceptionTemplate);
throw hostException;
}
}
}
y1 = y1 - cOORD1.Y;
y.Top = (short)(y.Top + cOORD1.Y);
}
int lowerBound = contents.GetLowerBound(0);
int upperBound = contents.GetUpperBound(0);
int lowerBound1 = contents.GetLowerBound(1);
int upperBound1 = contents.GetUpperBound(1);
ConsoleControl.CONSOLE_SCREEN_BUFFER_INFO consoleScreenBufferInfo = ConsoleControl.GetConsoleScreenBufferInfo(consoleHandle);
ConsoleColor consoleColor2 = ConsoleColor.Black;
ConsoleColor consoleColor3 = ConsoleColor.Black;
ConsoleControl.WORDToColor(consoleScreenBufferInfo.Attributes, out consoleColor2, out consoleColor3);
while (lowerBound <= upperBound)
{
int right1 = lowerBound1;
while (true)
{
if (contentsRegion.Top <= lowerBound && lowerBound <= contentsRegion.Bottom && contentsRegion.Left <= right1 && right1 <= contentsRegion.Right)
{
right1 = contentsRegion.Right + 1;
}
if (right1 > upperBound1)
{
break;
}
contents[lowerBound, right1].Character = ' ';
contents[lowerBound, right1].ForegroundColor = consoleColor2;
contents[lowerBound, right1].BackgroundColor = consoleColor3;
right1++;
}
lowerBound++;
}
return;
}
}
