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); }