/// <summary>
/// fill to left side and right side of the line
/// </summary>
/// <param name="destBuffer"></param>
/// <param name="x"></param>
/// <param name="y"></param>
unsafe void LinearFill(int *destBuffer, int x, int y)
{
int leftFillX = x;
int bufferOffset = _destImgRW.GetBufferOffsetXY32(x, y);
int pixelOffset = (imageWidth * y) + x;
while (true)
{
fillRule.SetPixel(destBuffer + bufferOffset);
pixelsChecked[pixelOffset] = true;
leftFillX--;
pixelOffset--;
bufferOffset--;
if (leftFillX <= 0 || (pixelsChecked[pixelOffset]) || !fillRule.CheckPixel(*(destBuffer + bufferOffset)))
{
break;
}
}
leftFillX++;
//
int rightFillX = x;
bufferOffset = _destImgRW.GetBufferOffsetXY32(x, y);
pixelOffset = (imageWidth * y) + x;
while (true)
{
fillRule.SetPixel(destBuffer + bufferOffset);
pixelsChecked[pixelOffset] = true;
rightFillX++;
pixelOffset++;
bufferOffset++;
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)
{
//TODO: review here,
//check pixel format for an image buffer before use
//if mBuffer is not 32 bits ARGB => this may not correct
int i = 0;
int[] mBuffer = buff.raw_buffer32;
for (int y = my; y < h; ++y)
{
//int xbufferOffset = buff.GetBufferOffsetXY(0, y);
int xbuffOffset32 = buff.GetBufferOffsetXY32(0, y);
for (int x = mx; x < w; ++x)
{
//A R G B
int val = mBuffer[xbuffOffset32];
byte r = (byte)((val >> 16) & 0xff); // mBuffer[xbufferOffset + 2];
byte g = (byte)((val >> 8) & 0xff); // mBuffer[xbufferOffset + 1];
byte b = (byte)((val >> 0) & 0xff); // mBuffer[xbufferOffset];
//xbufferOffset += 4;
xbuffOffset32++;
//
buffer[i] = b | (g << 8) | (r << 16);
i++;
}
}
//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)
// {
// //A R G B
// 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 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;
int[] ptr = sourceImage.GetBuffer32();
sourceOffset = sourceImage.GetBufferOffsetXY32(x_lr, y_lr);
weight = (LineAA.SUBPIXEL_SCALE - x) *
(LineAA.SUBPIXEL_SCALE - y);
//
int ptr_v = ptr[sourceOffset];
r += weight * ((ptr_v >> (CO.R * 8) & 0xff)); // ptr[sourceOffset + CO.R];
g += weight * ((ptr_v >> (CO.G * 8) & 0xff)); //ptr[sourceOffset + CO.G];
b += weight * ((ptr_v >> (CO.B * 8) & 0xff)); //ptr[sourceOffset + CO.B];
a += weight * ((ptr_v >> (CO.A * 8) & 0xff)); //ptr[sourceOffset + CO.A];
//
sourceOffset += 1; // 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];
ptr_v = ptr[sourceOffset];
r += weight * ((ptr_v >> (CO.R * 8) & 0xff)); // ptr[sourceOffset + CO.R];
g += weight * ((ptr_v >> (CO.G * 8) & 0xff)); //ptr[sourceOffset + CO.G];
b += weight * ((ptr_v >> (CO.B * 8) & 0xff)); //ptr[sourceOffset + CO.B];
a += weight * ((ptr_v >> (CO.A * 8) & 0xff)); //ptr[sourceOffset + CO.A];
//
sourceOffset = sourceImage.GetBufferOffsetXY32(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];
ptr_v = ptr[sourceOffset];
r += weight * ((ptr_v >> (CO.R * 8) & 0xff)); // ptr[sourceOffset + CO.R];
g += weight * ((ptr_v >> (CO.G * 8) & 0xff)); //ptr[sourceOffset + CO.G];
b += weight * ((ptr_v >> (CO.B * 8) & 0xff)); //ptr[sourceOffset + CO.B];
a += weight * ((ptr_v >> (CO.A * 8) & 0xff)); //ptr[sourceOffset + CO.A];
//
sourceOffset += 1; // 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];
ptr_v = ptr[sourceOffset];
r += weight * ((ptr_v >> (CO.R * 8) & 0xff)); // ptr[sourceOffset + CO.R];
g += weight * ((ptr_v >> (CO.G * 8) & 0xff)); //ptr[sourceOffset + CO.G];
b += weight * ((ptr_v >> (CO.B * 8) & 0xff)); //ptr[sourceOffset + CO.B];
a += weight * ((ptr_v >> (CO.A * 8) & 0xff)); //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);
destBuffer[destBufferOffset] = Color.FromArgb(
(byte)(a >> LineAA.SUBPIXEL_SHIFT * 2),
(byte)(r >> LineAA.SUBPIXEL_SHIFT * 2),
(byte)(g >> LineAA.SUBPIXEL_SHIFT * 2),
(byte)(b >> LineAA.SUBPIXEL_SHIFT * 2)
);
}
public void Fill(ImageReaderWriterBase bufferToFillOn, int x, int y)
{
y -= imageHeight;
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;
}
}
_destImgRW = bufferToFillOn;
TempMemPtr destBufferPtr = bufferToFillOn.GetBufferPtr();
unsafe
{
imageWidth = bufferToFillOn.Width;
imageHeight = bufferToFillOn.Height;
//reset new buffer, clear mem?
pixelsChecked = new bool[imageWidth * imageHeight];
int *destBuffer = (int *)destBufferPtr.Ptr;
int startColorBufferOffset = bufferToFillOn.GetBufferOffsetXY32(x, y);
int start_color = *(destBuffer + startColorBufferOffset);
fillRule.SetStartColor(Drawing.Color.FromArgb(
(start_color >> 16) & 0xff,
(start_color >> 8) & 0xff,
(start_color) & 0xff));
LinearFill(destBuffer, 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 = bufferToFillOn.GetBufferOffsetXY32(rangeX, downY);
if (fillRule.CheckPixel(*(destBuffer + bufferOffset)))
{
LinearFill(destBuffer, rangeX, downY);
}
}
}
if (range.y < (imageHeight - 1))
{
if (!pixelsChecked[upPixelOffset])
{
int bufferOffset = bufferToFillOn.GetBufferOffsetXY32(rangeX, upY);
if (fillRule.CheckPixel(*(destBuffer + bufferOffset)))
{
LinearFill(destBuffer, rangeX, upY);
}
}
}
upPixelOffset++;
downPixelOffset++;
}
}
}
destBufferPtr.Release();
}
