public override void ProcessPixels(RectangleI region)
{
ComplexGrid gridDirect = new ComplexGrid(ImageBounds, ProjectionBounds, fDir);
ComplexGrid gridInverse = new ComplexGrid(ImageBounds, ProjectionBounds, fInv);
Parallel.For(region.TopLeft.Y, region.BottomRight.Y, y =>
{
Parallel.For(region.TopLeft.X, region.BottomRight.X, x =>
{
var pDir = (PointI)lerpPoint(new PointD(x, y), gridDirect[x, y], Alpha);
var pInv = (PointI)lerpPoint(new PointD(x, y), gridInverse[x, y], Alpha);
SKColor color;
if (IsPointInRange(pDir, ImageBounds))
{
color = SourceImage.GetPixel(pDir.X, pDir.Y);
}
else if (IsPointInRange(pInv, ImageBounds))
{
color = SourceImage.GetPixel(pInv.X, pInv.Y);
}
else
{
color = SKColor.Empty;
}
DestImage.SetPixel(x, y, color);
});
});
}
public override void PostProcess()
{
SKBitmap rendered = Device.Present();
for (int y = 0; y < DestImage.Height; y++)
{
for (int x = 0; x < DestImage.Width; x++)
{
SKColor pixel = rendered.GetPixel(x, DestImage.Height - (y + 1));
DestImage.SetPixel(x, y, pixel);
}
}
Mesh = null;
}
public override void ProcessPixels(RectangleI region)
{
Api api = new Api(
image: new Image(SourceImage),
param: new ScriptParams(
PrimaryParam,
SecondaryParam,
(Pixel)ColorParam
)
);
Parallel.For(region.TopLeft.Y, region.BottomRight.Y, (y, outer) =>
{
if (EncounteredError)
{
outer.Break();
return;
}
Parallel.For(region.TopLeft.X, region.BottomRight.X, (x, inner) =>
{
if (EncounteredError)
{
inner.Break();
return;
}
try
{
SKColor src = SourceImage.GetPixel(x, y);
Pixel colorIn = new Pixel(src.Blue, src.Green, src.Red, src.Alpha);
Pixel colorOut = FilterFunc(api, colorIn, x, y);
SKColor dst = new SKColor(colorOut.Blue, colorOut.Green, colorOut.Red, colorOut.Alpha);
DestImage.SetPixel(x, y, dst);
}
catch (Exception e)
{
if (!EncounteredError)
{
EncounteredError = true;
MessageBox.Show($"Your code encountered an exception at runtime.\n{e.Message}",
"Runtime Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
});
});
}
public override void Render(IVertexSource vertexSource, int pathIndexToRender, IColorType colorBytes)
{
rasterizer.reset();
Affine transform = GetTransform();
if (!transform.is_identity())
{
vertexSource = new VertexSourceApplyTransform(vertexSource, transform);
}
rasterizer.add_path(vertexSource, pathIndexToRender);
if (destImageByte != null)
{
scanlineRenderer.RenderSolid(destImageByte, rasterizer, m_ScanlineCache, colorBytes.GetAsRGBA_Bytes());
DestImage.MarkImageChanged();
}
else
{
scanlineRenderer.RenderSolid(destImageFloat, rasterizer, m_ScanlineCache, colorBytes.GetAsRGBA_Floats());
destImageFloat.MarkImageChanged();
}
}
public override void Clear(IColorType iColor)
{
RectangleDouble clippingRect = GetClippingRect();
var clippingRectInt = new RectangleInt((int)clippingRect.Left, (int)clippingRect.Bottom, (int)clippingRect.Right, (int)clippingRect.Top);
if (DestImage != null)
{
var color = iColor.ToColor();
byte[] buffer = DestImage.GetBuffer();
switch (DestImage.BitDepth)
{
case 8:
{
for (int y = clippingRectInt.Bottom; y < clippingRectInt.Top; y++)
{
int bufferOffset = DestImage.GetBufferOffsetXY((int)clippingRect.Left, y);
int bytesBetweenPixels = DestImage.GetBytesBetweenPixelsInclusive();
for (int x = 0; x < clippingRectInt.Width; x++)
{
buffer[bufferOffset] = color.blue;
bufferOffset += bytesBetweenPixels;
}
}
}
break;
case 24:
for (int y = clippingRectInt.Bottom; y < clippingRectInt.Top; y++)
{
int bufferOffset = DestImage.GetBufferOffsetXY((int)clippingRect.Left, y);
int bytesBetweenPixels = DestImage.GetBytesBetweenPixelsInclusive();
for (int x = 0; x < clippingRectInt.Width; x++)
{
buffer[bufferOffset + 0] = color.blue;
buffer[bufferOffset + 1] = color.green;
buffer[bufferOffset + 2] = color.red;
bufferOffset += bytesBetweenPixels;
}
}
break;
case 32:
{
for (int y = clippingRectInt.Bottom; y < clippingRectInt.Top; y++)
{
int bufferOffset = DestImage.GetBufferOffsetXY((int)clippingRect.Left, y);
int bytesBetweenPixels = DestImage.GetBytesBetweenPixelsInclusive();
for (int x = 0; x < clippingRectInt.Width; x++)
{
buffer[bufferOffset + 0] = color.blue;
buffer[bufferOffset + 1] = color.green;
buffer[bufferOffset + 2] = color.red;
buffer[bufferOffset + 3] = color.alpha;
bufferOffset += bytesBetweenPixels;
}
}
}
break;
default:
throw new NotImplementedException();
}
DestImage.MarkImageChanged();
}
else // it is a float
{
if (DestImageFloat == null)
{
throw new Exception("You have to have either a byte or float DestImage.");
}
var color = iColor.ToColorF();
int height = DestImageFloat.Height;
float[] buffer = DestImageFloat.GetBuffer();
switch (DestImageFloat.BitDepth)
{
case 128:
for (int y = 0; y < height; y++)
{
int bufferOffset = DestImageFloat.GetBufferOffsetXY(clippingRectInt.Left, y);
int bytesBetweenPixels = DestImageFloat.GetFloatsBetweenPixelsInclusive();
for (int x = 0; x < clippingRectInt.Width; x++)
{
buffer[bufferOffset + 0] = color.blue;
buffer[bufferOffset + 1] = color.green;
buffer[bufferOffset + 2] = color.red;
buffer[bufferOffset + 3] = color.alpha;
bufferOffset += bytesBetweenPixels;
}
}
break;
default:
throw new NotImplementedException();
}
}
}
public override void Render(IImageByte source,
double destX,
double destY,
double angleRadians,
double inScaleX,
double inScaleY)
{
Affine graphicsTransform = GetTransform();
// exit early if the dest and source bounds don't touch.
// TODO: <BUG> make this do rotation and scaling
RectangleInt sourceBounds = source.GetBounds();
RectangleInt destBounds = this.destImageByte.GetBounds();
sourceBounds.Offset((int)(destX + graphicsTransform.tx), (int)(destY + graphicsTransform.ty));
if (!RectangleInt.DoIntersect(sourceBounds, destBounds))
{
if (inScaleX != 1 || inScaleY != 1 || angleRadians != 0)
{
//throw new NotImplementedException();
}
//return;
}
double scaleX = inScaleX;
double scaleY = inScaleY;
if (!graphicsTransform.is_identity())
{
if (scaleX != 1 || scaleY != 1 || angleRadians != 0)
{
//throw new NotImplementedException();
}
graphicsTransform.transform(ref destX, ref destY);
}
#if false // this is an optimization that eliminates the drawing of images that have their alpha set to all 0 (happens with generated images like explosions).
MaxAlphaFrameProperty maxAlphaFrameProperty = MaxAlphaFrameProperty::GetMaxAlphaFrameProperty(source);
if ((maxAlphaFrameProperty.GetMaxAlpha() * color.A_Byte) / 256 <= ALPHA_CHANNEL_BITS_DIVISOR)
{
m_OutFinalBlitBounds.SetRect(0, 0, 0, 0);
}
#endif
bool isScaled = scaleX != 1 || scaleY != 1;
bool isRotated = true;
if (Math.Abs(angleRadians) < (0.1 * MathHelper.Tau / 360))
{
isRotated = false;
angleRadians = 0;
}
// bool IsMipped = false;
double sourceOriginOffsetX = source.OriginOffset.X;
double sourceOriginOffsetY = source.OriginOffset.Y;
bool canUseMipMaps = isScaled;
if (scaleX > 0.5 || scaleY > 0.5)
{
canUseMipMaps = false;
}
bool renderRequriesSourceSampling = isScaled || isRotated || destX != (int)destX || destY != (int)destY;
// this is the fast drawing path
if (renderRequriesSourceSampling)
{
#if false // if the scaling is small enough the results can be improved by using mip maps
if (CanUseMipMaps)
{
CMipMapFrameProperty *pMipMapFrameProperty = CMipMapFrameProperty::GetMipMapFrameProperty(source);
double OldScaleX = scaleX;
double OldScaleY = scaleY;
const CFrameInterface *pMippedFrame = pMipMapFrameProperty.GetMipMapFrame(ref scaleX, ref scaleY);
if (pMippedFrame != source)
{
IsMipped = true;
source = pMippedFrame;
sourceOriginOffsetX *= (OldScaleX / scaleX);
sourceOriginOffsetY *= (OldScaleY / scaleY);
}
HotspotOffsetX *= (inScaleX / scaleX);
HotspotOffsetY *= (inScaleY / scaleY);
}
#endif
switch (ImageRenderQuality)
{
case TransformQuality.Fastest:
{
DrawImageGetDestBounds(source, destX, destY, sourceOriginOffsetX, sourceOriginOffsetY, scaleX, scaleY, angleRadians, out Affine destRectTransform);
var sourceRectTransform = new Affine(destRectTransform);
// We invert it because it is the transform to make the image go to the same position as the polygon. LBB [2/24/2004]
sourceRectTransform.invert();
span_image_filter spanImageFilter;
var interpolator = new span_interpolator_linear(sourceRectTransform);
var sourceAccessor = new ImageBufferAccessorClip(source, ColorF.rgba_pre(0, 0, 0, 0).ToColor());
spanImageFilter = new span_image_filter_rgba_bilinear_clip(sourceAccessor, ColorF.rgba_pre(0, 0, 0, 0), interpolator);
DrawImage(spanImageFilter, destRectTransform);
}
break;
case TransformQuality.Best:
{
DrawImageGetDestBounds(source, destX, destY, sourceOriginOffsetX, sourceOriginOffsetY, scaleX, scaleY, angleRadians, out Affine destRectTransform);
var sourceRectTransform = new Affine(destRectTransform);
// We invert it because it is the transform to make the image go to the same position as the polygon. LBB [2/24/2004]
sourceRectTransform.invert();
var interpolator = new span_interpolator_linear(sourceRectTransform);
var sourceAccessor = new ImageBufferAccessorClip(source, ColorF.rgba_pre(0, 0, 0, 0).ToColor());
// spanImageFilter = new span_image_filter_rgba_bilinear_clip(sourceAccessor, RGBA_Floats.rgba_pre(0, 0, 0, 0), interpolator);
IImageFilterFunction filterFunction = null;
filterFunction = new image_filter_blackman(4);
var filter = new ImageFilterLookUpTable();
filter.calculate(filterFunction, true);
span_image_filter spanGenerator = new span_image_filter_rgba(sourceAccessor, interpolator, filter);
DrawImage(spanGenerator, destRectTransform);
}
break;
}
#if false // this is some debug you can enable to visualize the dest bounding box
LineFloat(BoundingRect.left, BoundingRect.top, BoundingRect.right, BoundingRect.top, WHITE);
LineFloat(BoundingRect.right, BoundingRect.top, BoundingRect.right, BoundingRect.bottom, WHITE);
LineFloat(BoundingRect.right, BoundingRect.bottom, BoundingRect.left, BoundingRect.bottom, WHITE);
LineFloat(BoundingRect.left, BoundingRect.bottom, BoundingRect.left, BoundingRect.top, WHITE);
#endif
}
else // TODO: this can be even faster if we do not use an intermediate buffer
{
DrawImageGetDestBounds(source, destX, destY, sourceOriginOffsetX, sourceOriginOffsetY, scaleX, scaleY, angleRadians, out Affine destRectTransform);
var sourceRectTransform = new Affine(destRectTransform);
// We invert it because it is the transform to make the image go to the same position as the polygon. LBB [2/24/2004]
sourceRectTransform.invert();
var interpolator = new span_interpolator_linear(sourceRectTransform);
var sourceAccessor = new ImageBufferAccessorClip(source, ColorF.rgba_pre(0, 0, 0, 0).ToColor());
span_image_filter spanImageFilter = null;
switch (source.BitDepth)
{
case 32:
spanImageFilter = new span_image_filter_rgba_nn_stepXby1(sourceAccessor, interpolator);
break;
case 24:
spanImageFilter = new span_image_filter_rgb_nn_stepXby1(sourceAccessor, interpolator);
break;
case 8:
spanImageFilter = new span_image_filter_gray_nn_stepXby1(sourceAccessor, interpolator);
break;
default:
throw new NotImplementedException();
}
// spanImageFilter = new span_image_filter_rgba_nn(sourceAccessor, interpolator);
DrawImage(spanImageFilter, destRectTransform);
DestImage.MarkImageChanged();
}
}
