//------------------------------------------------------------------------
public Perspective trans_perspectivemultiply_inv(Affine m)
{
Affine t = m;
t.invert();
return(multiply(t));
}
public void invert_test()
{
Affine a = Affine.NewIdentity();
a.translate(10, 10);
Affine b = new Affine(a);
b.invert();
double x = 100;
double y = 100;
double newx = x;
double newy = y;
a.transform(ref newx, ref newy);
b.transform(ref newx, ref newy);
Assert.AreEqual(x, newx, .001);
Assert.AreEqual(y, newy, .001);
}
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());
ScanlineRasterizer ras = new ScanlineRasterizer();
scanline_unpacked_8 sl = new scanline_unpacked_8();
ImageClippingProxy clippingProxy = new ImageClippingProxy(widgetsSubImage);
clippingProxy.clear(new RGBA_Floats(0, 0, 0));
m_profile.text_size(8.0);
// draw a background to show how the alpha is working
int RectWidth = 32;
int xoffset = 238;
int yoffset = 171;
ScanlineRenderer scanlineRenderer = new ScanlineRenderer();
for (int i = 0; i < 7; i++)
{
for (int j = 0; j < 7; j++)
{
if ((i + j) % 2 != 0)
{
VertexSource.RoundedRect rect = new VertexSource.RoundedRect(i * RectWidth + xoffset, j * RectWidth + yoffset,
(i + 1) * RectWidth + xoffset, (j + 1) * RectWidth + yoffset, 2);
rect.normalize_radius();
ras.add_path(rect);
scanlineRenderer.render_scanlines_aa_solid(clippingProxy, ras, sl, new RGBA_Bytes(.9, .9, .9));
}
}
}
double ini_scale = 1.0;
Transform.Affine mtx1 = Affine.NewIdentity();
mtx1 *= Affine.NewScaling(ini_scale, ini_scale);
mtx1 *= Affine.NewTranslation(center_x, center_y);
VertexSource.Ellipse e1 = new MatterHackers.Agg.VertexSource.Ellipse();
e1.init(0.0, 0.0, 110.0, 110.0, 64);
Transform.Affine mtx_g1 = Affine.NewIdentity();
mtx_g1 *= Affine.NewScaling(ini_scale, ini_scale);
mtx_g1 *= Affine.NewScaling(m_SaveData.m_scale, m_SaveData.m_scale);
mtx_g1 *= Affine.NewScaling(m_scale_x, m_scale_y);
mtx_g1 *= Affine.NewRotation(m_SaveData.m_angle);
mtx_g1 *= Affine.NewTranslation(m_SaveData.m_center_x, m_SaveData.m_center_y);
mtx_g1.invert();
RGBA_Bytes[] color_profile = new RGBA_Bytes[256]; // color_type is defined in pixel_formats.h
for (int i = 0; i < 256; i++)
{
color_profile[i] = new RGBA_Bytes(m_spline_r.spline()[i],
m_spline_g.spline()[i],
m_spline_b.spline()[i],
m_spline_a.spline()[i]);
}
VertexSourceApplyTransform t1 = new VertexSourceApplyTransform(e1, mtx1);
IGradient innerGradient = null;
switch (m_GradTypeRBox.SelectedIndex)
{
case 0:
innerGradient = new gradient_radial();
break;
case 1:
innerGradient = new gradient_diamond();
break;
case 2:
innerGradient = new gradient_x();
break;
case 3:
innerGradient = new gradient_xy();
break;
case 4:
innerGradient = new gradient_sqrt_xy();
break;
case 5:
innerGradient = new gradient_conic();
break;
}
IGradient outerGradient = null;
switch (m_GradWrapRBox.SelectedIndex)
{
case 0:
outerGradient = new gradient_reflect_adaptor(innerGradient);
break;
case 1:
outerGradient = new gradient_repeat_adaptor(innerGradient);
break;
case 2:
outerGradient = new gradient_clamp_adaptor(innerGradient);
break;
}
span_allocator span_alloc = new span_allocator();
color_function_profile colors = new color_function_profile(color_profile, m_profile.gamma());
span_interpolator_linear inter = new span_interpolator_linear(mtx_g1);
span_gradient span_gen = new span_gradient(inter, outerGradient, colors, 0, 150);
ras.add_path(t1);
scanlineRenderer.GenerateAndRender(ras, sl, clippingProxy, span_alloc, span_gen);
base.OnDraw(graphics2D);
}
