| public GetBufferOffsetXY ( int x, int y ) : int | ||
| x | int | |
| y | int | |
| return | int | |
public void Fill(ImageReaderWriterBase bufferToFillOn, int x, int y)
{
unchecked // this way we can overflow the uint on negative and get a big number
{
if ((uint)x > bufferToFillOn.Width || (uint)y > bufferToFillOn.Height)
{
return;
}
}
destImage = bufferToFillOn;
imageStride = destImage.Stride;
destBuffer = destImage.GetBuffer();
int imageWidth = destImage.Width;
int imageHeight = destImage.Height;
pixelsChecked = new bool[destImage.Width * destImage.Height];
int startColorBufferOffset = destImage.GetBufferOffsetXY(x, y);
fillRule.SetStartColor(Drawing.Color.FromArgb(destImage.GetBuffer()[startColorBufferOffset + 2], destImage.GetBuffer()[startColorBufferOffset + 1], destImage.GetBuffer()[startColorBufferOffset]));
LinearFill(x, y);
while (ranges.Count > 0)
{
Range range = ranges.Dequeue();
int downY = range.y - 1;
int upY = range.y + 1;
int downPixelOffset = (imageWidth * (range.y - 1)) + range.startX;
int upPixelOffset = (imageWidth * (range.y + 1)) + range.startX;
for (int rangeX = range.startX; rangeX <= range.endX; rangeX++)
{
if (range.y > 0)
{
if (!pixelsChecked[downPixelOffset])
{
int bufferOffset = destImage.GetBufferOffsetXY(rangeX, downY);
if (fillRule.CheckPixel(destBuffer, bufferOffset))
{
LinearFill(rangeX, downY);
}
}
}
if (range.y < (imageHeight - 1))
{
if (!pixelsChecked[upPixelOffset])
{
int bufferOffset = destImage.GetBufferOffsetXY(rangeX, upY);
if (fillRule.CheckPixel(destBuffer, bufferOffset))
{
LinearFill(rangeX, upY);
}
}
}
upPixelOffset++;
downPixelOffset++;
}
}
}
public void SetPixelHighRes(ImageReaderWriterBase sourceImage,
ColorRGBA[] destBuffer,
int destBufferOffset,
int x,
int y)
{
int r, g, b, a;
r = g = b = a = LineAA.SUBPIXEL_SCALE * LineAA.SUBPIXEL_SCALE / 2;
int weight;
int x_lr = x >> LineAA.SUBPIXEL_SHIFT;
int y_lr = y >> LineAA.SUBPIXEL_SHIFT;
x &= LineAA.SUBPIXEL_MARK;
y &= LineAA.SUBPIXEL_MARK;
int sourceOffset;
byte[] ptr = sourceImage.GetBuffer();
sourceOffset = sourceImage.GetBufferOffsetXY(x_lr, y_lr);
weight = (LineAA.SUBPIXEL_SCALE - x) *
(LineAA.SUBPIXEL_SCALE - y);
r += weight * ptr[sourceOffset + CO.R];
g += weight * ptr[sourceOffset + CO.G];
b += weight * ptr[sourceOffset + CO.B];
a += weight * ptr[sourceOffset + CO.A];
sourceOffset += sourceImage.BytesBetweenPixelsInclusive;
weight = x * (LineAA.SUBPIXEL_SCALE - y);
r += weight * ptr[sourceOffset + CO.R];
g += weight * ptr[sourceOffset + CO.G];
b += weight * ptr[sourceOffset + CO.B];
a += weight * ptr[sourceOffset + CO.A];
sourceOffset = sourceImage.GetBufferOffsetXY(x_lr, y_lr + 1);
weight = (LineAA.SUBPIXEL_SCALE - x) * y;
r += weight * ptr[sourceOffset + CO.R];
g += weight * ptr[sourceOffset + CO.G];
b += weight * ptr[sourceOffset + CO.B];
a += weight * ptr[sourceOffset + CO.A];
sourceOffset += sourceImage.BytesBetweenPixelsInclusive;
weight = x * y;
r += weight * ptr[sourceOffset + CO.R];
g += weight * ptr[sourceOffset + CO.G];
b += weight * ptr[sourceOffset + CO.B];
a += weight * ptr[sourceOffset + CO.A];
destBuffer[destBufferOffset].red = (byte)(r >> LineAA.SUBPIXEL_SHIFT * 2);
destBuffer[destBufferOffset].green = (byte)(g >> LineAA.SUBPIXEL_SHIFT * 2);
destBuffer[destBufferOffset].blue = (byte)(b >> LineAA.SUBPIXEL_SHIFT * 2);
destBuffer[destBufferOffset].alpha = (byte)(a >> LineAA.SUBPIXEL_SHIFT * 2);
}
public void SetPixelHighRes(ImageReaderWriterBase sourceImage,
Color[] destBuffer,
int destBufferOffset,
int x,
int y)
{
int r, g, b, a;
r = g = b = a = LineAA.SUBPIXEL_SCALE * LineAA.SUBPIXEL_SCALE / 2;
int weight;
int x_lr = x >> LineAA.SUBPIXEL_SHIFT;
int y_lr = y >> LineAA.SUBPIXEL_SHIFT;
x &= LineAA.SUBPIXEL_MARK;
y &= LineAA.SUBPIXEL_MARK;
int sourceOffset;
byte[] ptr = sourceImage.GetBuffer();
sourceOffset = sourceImage.GetBufferOffsetXY(x_lr, y_lr);
weight = (LineAA.SUBPIXEL_SCALE - x) *
(LineAA.SUBPIXEL_SCALE - y);
r += weight * ptr[sourceOffset + CO.R];
g += weight * ptr[sourceOffset + CO.G];
b += weight * ptr[sourceOffset + CO.B];
a += weight * ptr[sourceOffset + CO.A];
sourceOffset += sourceImage.BytesBetweenPixelsInclusive;
weight = x * (LineAA.SUBPIXEL_SCALE - y);
r += weight * ptr[sourceOffset + CO.R];
g += weight * ptr[sourceOffset + CO.G];
b += weight * ptr[sourceOffset + CO.B];
a += weight * ptr[sourceOffset + CO.A];
sourceOffset = sourceImage.GetBufferOffsetXY(x_lr, y_lr + 1);
weight = (LineAA.SUBPIXEL_SCALE - x) * y;
r += weight * ptr[sourceOffset + CO.R];
g += weight * ptr[sourceOffset + CO.G];
b += weight * ptr[sourceOffset + CO.B];
a += weight * ptr[sourceOffset + CO.A];
sourceOffset += sourceImage.BytesBetweenPixelsInclusive;
weight = x * y;
r += weight * ptr[sourceOffset + CO.R];
g += weight * ptr[sourceOffset + CO.G];
b += weight * ptr[sourceOffset + CO.B];
a += weight * ptr[sourceOffset + CO.A];
destBuffer[destBufferOffset].red = (byte)(r >> LineAA.SUBPIXEL_SHIFT * 2);
destBuffer[destBufferOffset].green = (byte)(g >> LineAA.SUBPIXEL_SHIFT * 2);
destBuffer[destBufferOffset].blue = (byte)(b >> LineAA.SUBPIXEL_SHIFT * 2);
destBuffer[destBufferOffset].alpha = (byte)(a >> LineAA.SUBPIXEL_SHIFT * 2);
}
void LinearFill(int x, int y)
{
int bytesPerPixel = destImage.BytesBetweenPixelsInclusive;
int imageWidth = destImage.Width;
int leftFillX = x;
int bufferOffset = destImage.GetBufferOffsetXY(x, y);
int pixelOffset = (imageWidth * y) + x;
while (true)
{
fillRule.SetPixel(destBuffer, bufferOffset);
pixelsChecked[pixelOffset] = true;
leftFillX--;
pixelOffset--;
bufferOffset -= bytesPerPixel;
if (leftFillX <= 0 || (pixelsChecked[pixelOffset]) || !fillRule.CheckPixel(destBuffer, bufferOffset))
{
break;
}
}
leftFillX++;
int rightFillX = x;
bufferOffset = destImage.GetBufferOffsetXY(x, y);
pixelOffset = (imageWidth * y) + x;
while (true)
{
fillRule.SetPixel(destBuffer, bufferOffset);
pixelsChecked[pixelOffset] = true;
rightFillX++;
pixelOffset++;
bufferOffset += bytesPerPixel;
if (rightFillX >= imageWidth || pixelsChecked[pixelOffset] || !fillRule.CheckPixel(destBuffer, bufferOffset))
{
break;
}
}
rightFillX--;
ranges.Enqueue(new Range(leftFillX, rightFillX, y));
}
public static void CopySubBufferToInt32Array(ImageReaderWriterBase buff, int mx, int my, int w, int h, int[] buffer)
{
int i = 0;
byte[] mBuffer = buff.m_ByteBuffer;
for (int y = my; y < h; ++y)
{
int xbufferOffset = buff.GetBufferOffsetXY(0, y);
for (int x = mx; x < w; ++x)
{
//rgba
byte r = mBuffer[xbufferOffset + 2];
byte g = mBuffer[xbufferOffset + 1];
byte b = mBuffer[xbufferOffset];
xbufferOffset += 4;
buffer[i] = b | (g << 8) | (r << 16);
i++;
}
}
}
public void Fill(ImageReaderWriterBase bufferToFillOn, int x, int y)
{
unchecked // this way we can overflow the uint on negative and get a big number
{
if ((uint)x > bufferToFillOn.Width || (uint)y > bufferToFillOn.Height)
{
return;
}
}
destImage = bufferToFillOn;
imageStride = destImage.Stride;
destBuffer = destImage.GetBuffer();
int imageWidth = destImage.Width;
int imageHeight = destImage.Height;
pixelsChecked = new bool[destImage.Width * destImage.Height];
int startColorBufferOffset = destImage.GetBufferOffsetXY(x, y);
fillRule.SetStartColor(Drawing.Color.FromArgb(destImage.GetBuffer()[startColorBufferOffset + 2], destImage.GetBuffer()[startColorBufferOffset + 1], destImage.GetBuffer()[startColorBufferOffset]));
LinearFill(x, y);
while (ranges.Count > 0)
{
Range range = ranges.Dequeue();
int downY = range.y - 1;
int upY = range.y + 1;
int downPixelOffset = (imageWidth * (range.y - 1)) + range.startX;
int upPixelOffset = (imageWidth * (range.y + 1)) + range.startX;
for (int rangeX = range.startX; rangeX <= range.endX; rangeX++)
{
if (range.y > 0)
{
if (!pixelsChecked[downPixelOffset])
{
int bufferOffset = destImage.GetBufferOffsetXY(rangeX, downY);
if (fillRule.CheckPixel(destBuffer, bufferOffset))
{
LinearFill(rangeX, downY);
}
}
}
if (range.y < (imageHeight - 1))
{
if (!pixelsChecked[upPixelOffset])
{
int bufferOffset = destImage.GetBufferOffsetXY(rangeX, upY);
if (fillRule.CheckPixel(destBuffer, bufferOffset))
{
LinearFill(rangeX, upY);
}
}
}
upPixelOffset++;
downPixelOffset++;
}
}
}
public static void CopySubBufferToInt32Array(ImageReaderWriterBase buff, int mx, int my, int w, int h, int[] buffer)
{
int i = 0;
byte[] mBuffer = buff.m_ByteBuffer;
for (int y = my; y < h; ++y)
{
int xbufferOffset = buff.GetBufferOffsetXY(0, y);
for (int x = mx; x < w; ++x)
{
//rgba
byte r = mBuffer[xbufferOffset + 2];
byte g = mBuffer[xbufferOffset + 1];
byte b = mBuffer[xbufferOffset];
xbufferOffset += 4;
buffer[i] = b | (g << 8) | (r << 16);
i++;
}
}
}
