public override void Render(IImageByte source,
double destX, double destY,
double angleRadians,
double inScaleX, double inScaleY)
{
{ // exit early if the dest and source bounds don't touch.
// TODO: <BUG> make this do rotation and scalling
RectangleInt sourceBounds = source.GetBounds();
RectangleInt destBounds = this.destImageByte.GetBounds();
sourceBounds.Offset((int)destX, (int)destY);
if (!RectangleInt.DoIntersect(sourceBounds, destBounds))
{
if (inScaleX != 1 || inScaleY != 1 || angleRadians != 0)
{
throw new NotImplementedException();
}
return;
}
}
double scaleX = inScaleX;
double scaleY = inScaleY;
Affine graphicsTransform = GetTransform();
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 optomization 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 scalling 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
Affine destRectTransform;
DrawImageGetDestBounds(source, destX, destY, sourceOriginOffsetX, sourceOriginOffsetY, scaleX, scaleY, angleRadians, out destRectTransform);
Affine 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;
span_interpolator_linear interpolator = new span_interpolator_linear(sourceRectTransform);
ImageBufferAccessorClip sourceAccessor = new ImageBufferAccessorClip(source, RGBA_Floats.rgba_pre(0, 0, 0, 0).GetAsRGBA_Bytes());
spanImageFilter = new span_image_filter_rgba_bilinear_clip(sourceAccessor, RGBA_Floats.rgba_pre(0, 0, 0, 0), interpolator);
DrawImage(source, spanImageFilter, destRectTransform);
#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 intermediat buffer
{
Affine destRectTransform;
DrawImageGetDestBounds(source, destX, destY, sourceOriginOffsetX, sourceOriginOffsetY, scaleX, scaleY, angleRadians, out destRectTransform);
Affine 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_interpolator_linear interpolator = new span_interpolator_linear(sourceRectTransform);
ImageBufferAccessorClip sourceAccessor = new ImageBufferAccessorClip(source, RGBA_Floats.rgba_pre(0, 0, 0, 0).GetAsRGBA_Bytes());
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(source, spanImageFilter, destRectTransform);
DestImage.MarkImageChanged();
}
}
public override void OnDraw(Graphics2D graphics2D)
{
ImageBuffer widgetsSubImage = ImageBuffer.NewSubImageReference(graphics2D.DestImage, graphics2D.GetClippingRect());
if (orignialSize.x == 0)
{
orignialSize.x = WindowSize.x;
orignialSize.y = WindowSize.y;
}
ImageBuffer destImageWithPreMultBlender = new ImageBuffer();
switch (widgetsSubImage.BitDepth)
{
case 24:
destImageWithPreMultBlender.Attach(widgetsSubImage, new BlenderPreMultBGR());
break;
case 32:
destImageWithPreMultBlender.Attach(widgetsSubImage, new BlenderPreMultBGRA());
break;
default:
throw new Exception("Unknown bit depth");
}
ImageClippingProxy clippingProxy_pre = new ImageClippingProxy(destImageWithPreMultBlender);
clippingProxy_pre.clear(new RGBA_Floats(1.0, 1.0, 1.0));
Affine src_mtx = Affine.NewIdentity();
src_mtx *= Affine.NewTranslation(-orignialSize.x / 2 - 10, -orignialSize.y / 2 - 20 - 10);
src_mtx *= Affine.NewRotation(drawAngle.Value * Math.PI / 180.0);
src_mtx *= Affine.NewScaling(drawScale.Value);
src_mtx *= Affine.NewTranslation(orignialSize.x / 2, orignialSize.y / 2 + 20);
Affine img_mtx = Affine.NewIdentity();
img_mtx *= Affine.NewTranslation(-orignialSize.x / 2 + 10, -orignialSize.y / 2 + 20 + 10);
img_mtx *= Affine.NewRotation(drawAngle.Value * Math.PI / 180.0);
img_mtx *= Affine.NewScaling(drawScale.Value);
img_mtx *= Affine.NewTranslation(orignialSize.x / 2, orignialSize.y / 2 + 20);
img_mtx.invert();
MatterHackers.Agg.span_allocator sa = new span_allocator();
span_interpolator_linear interpolator = new span_interpolator_linear(img_mtx);
span_image_filter sg;
switch (sourceImage.BitDepth)
{
case 24:
{
ImageBufferAccessorClip source = new ImageBufferAccessorClip(sourceImage, RGBA_Floats.rgba_pre(0, 0, 0, 0).GetAsRGBA_Bytes());
sg = new span_image_filter_rgb_bilinear_clip(source, RGBA_Floats.rgba_pre(0, 0.4, 0, 0.5), interpolator);
}
break;
case 32:
{
ImageBufferAccessorClip source = new ImageBufferAccessorClip(sourceImage, RGBA_Floats.rgba_pre(0, 0, 0, 0).GetAsRGBA_Bytes());
sg = new span_image_filter_rgba_bilinear_clip(source, RGBA_Floats.rgba_pre(0, 0.4, 0, 0.5), interpolator);
}
break;
default:
throw new Exception("Bad sourc depth");
}
ScanlineRasterizer ras = new ScanlineRasterizer();
ras.SetVectorClipBox(0, 0, Width, Height);
ScanlineCachePacked8 sl = new ScanlineCachePacked8();
//scanline_unpacked_8 sl = new scanline_unpacked_8();
double r = orignialSize.x;
if (orignialSize.y - 60 < r)
{
r = orignialSize.y - 60;
}
VertexSource.Ellipse ell = new VertexSource.Ellipse(orignialSize.x / 2.0 + 10,
orignialSize.y / 2.0 + 20 + 10,
r / 2.0 + 16.0,
r / 2.0 + 16.0, 200);
VertexSourceApplyTransform tr = new VertexSourceApplyTransform(ell, src_mtx);
ras.add_path(tr);
//clippingProxy_pre.SetClippingBox(30, 0, (int)width(), (int)height());
ScanlineRenderer scanlineRenderer = new ScanlineRenderer();
scanlineRenderer.GenerateAndRender(ras, sl, clippingProxy_pre, sa, sg);
base.OnDraw(graphics2D);
}
