public blur_application(PixelFormats format, ERenderOrigin RenderOrigin)
: base(format, RenderOrigin)
{
m_rbuf2 = new RasterBuffer();
m_shape_bounds = new RectDouble <T>();
m_method = new rbox_ctrl <T>(10.0, 10.0, 130.0, 70.0);
m_radius = new SliderWidget <T>(130 + 10.0, 10.0 + 4.0, 130 + 300.0, 10.0 + 8.0 + 4.0);
m_shadow_ctrl = new polygon_ctrl <T>(4);
m_channel_r = new cbox_ctrl <T>(10.0, 80.0, "Red");
m_channel_g = new cbox_ctrl <T>(10.0, 95.0, "Green");
m_channel_b = new cbox_ctrl <T>(10.0, 110.0, "Blue");
m_FlattenCurves = new cbox_ctrl <T>(10, 315, "Convert And Flatten Curves");
m_FlattenCurves.status(true);
AddChild(m_method);
m_method.text_size(8);
m_method.add_item("Stack Blur");
m_method.add_item("Recursive Blur");
m_method.add_item("Channels");
m_method.cur_item(1);
AddChild(m_radius);
m_radius.range(0.0, 40.0);
m_radius.value(15.0);
m_radius.label("Blur Radius={0:F2}");
AddChild(m_shadow_ctrl);
AddChild(m_channel_r);
AddChild(m_channel_g);
AddChild(m_channel_b);
AddChild(m_FlattenCurves);
m_channel_g.status(true);
m_sl = new ScanlinePacked8();
m_path = new PathStorage <T>();
m_shape = new ConvCurve <T>(m_path);
m_path.RemoveAll();
m_path.MoveTo(28.47, 6.45);
m_path.Curve3(21.58, 1.12, 19.82, 0.29);
m_path.Curve3(17.19, -0.93, 14.21, -0.93);
m_path.Curve3(9.57, -0.93, 6.57, 2.25);
m_path.Curve3(3.56, 5.42, 3.56, 10.60);
m_path.Curve3(3.56, 13.87, 5.03, 16.26);
m_path.Curve3(7.03, 19.58, 11.99, 22.51);
m_path.Curve3(16.94, 25.44, 28.47, 29.64);
m_path.LineTo(28.47, 31.40);
m_path.Curve3(28.47, 38.09, 26.34, 40.58);
m_path.Curve3(24.22, 43.07, 20.17, 43.07);
m_path.Curve3(17.09, 43.07, 15.28, 41.41);
m_path.Curve3(13.43, 39.75, 13.43, 37.60);
m_path.LineTo(13.53, 34.77);
m_path.Curve3(13.53, 32.52, 12.38, 31.30);
m_path.Curve3(11.23, 30.08, 9.38, 30.08);
m_path.Curve3(7.57, 30.08, 6.42, 31.35);
m_path.Curve3(5.27, 32.62, 5.27, 34.81);
m_path.Curve3(5.27, 39.01, 9.57, 42.53);
m_path.Curve3(13.87, 46.04, 21.63, 46.04);
m_path.Curve3(27.59, 46.04, 31.40, 44.04);
m_path.Curve3(34.28, 42.53, 35.64, 39.31);
m_path.Curve3(36.52, 37.21, 36.52, 30.71);
m_path.LineTo(36.52, 15.53);
m_path.Curve3(36.52, 9.13, 36.77, 7.69);
m_path.Curve3(37.01, 6.25, 37.57, 5.76);
m_path.Curve3(38.13, 5.27, 38.87, 5.27);
m_path.Curve3(39.65, 5.27, 40.23, 5.62);
m_path.Curve3(41.26, 6.25, 44.19, 9.18);
m_path.LineTo(44.19, 6.45);
m_path.Curve3(38.72, -0.88, 33.74, -0.88);
m_path.Curve3(31.35, -0.88, 29.93, 0.78);
m_path.Curve3(28.52, 2.44, 28.47, 6.45);
m_path.ClosePolygon();
m_path.MoveTo(28.47, 9.62);
m_path.LineTo(28.47, 26.66);
m_path.Curve3(21.09, 23.73, 18.95, 22.51);
m_path.Curve3(15.09, 20.36, 13.43, 18.02);
m_path.Curve3(11.77, 15.67, 11.77, 12.89);
m_path.Curve3(11.77, 9.38, 13.87, 7.06);
m_path.Curve3(15.97, 4.74, 18.70, 4.74);
m_path.Curve3(22.41, 4.74, 28.47, 9.62);
m_path.ClosePolygon();
IAffineTransformMatrix <T> shape_mtx = MatrixFactory <T> .NewIdentity(VectorDimension.Two);
shape_mtx.Scale(M.New <T>(4.0));
shape_mtx.Translate(MatrixFactory <T> .CreateVector2D(150, 100));
m_path.Transform(shape_mtx);
BoundingRect <T> .BoundingRectSingle(m_shape, 0, ref m_shape_bounds);
m_shadow_ctrl.SetXN(0, m_shape_bounds.x1);
m_shadow_ctrl.SetYN(0, m_shape_bounds.y1);
m_shadow_ctrl.SetXN(1, m_shape_bounds.x2);
m_shadow_ctrl.SetYN(1, m_shape_bounds.y1);
m_shadow_ctrl.SetXN(2, m_shape_bounds.x2);
m_shadow_ctrl.SetYN(2, m_shape_bounds.y2);
m_shadow_ctrl.SetXN(3, m_shape_bounds.x1);
m_shadow_ctrl.SetYN(3, m_shape_bounds.y2);
m_shadow_ctrl.line_color(new RGBA_Doubles(0, 0.3, 0.5, 0.3));
}
public override void OnDraw()
{
//typedef agg::renderer_base<agg::pixfmt_bgr24> ren_base;
FormatRGB pixf = new FormatRGB(rbuf_window(), new BlenderBGR());
FormatClippingProxy clippingProxy = new FormatClippingProxy(pixf);
clippingProxy.Clear(new RGBA_Doubles(1, 1, 1));
m_ras.SetVectorClipBox(0, 0, width().ToDouble(), height().ToDouble());
IAffineTransformMatrix <T> move = MatrixFactory <T> .NewTranslation(10, 10);
Perspective <T> shadow_persp = new Perspective <T>(m_shape_bounds.x1, m_shape_bounds.y1,
m_shape_bounds.x2, m_shape_bounds.y2,
m_shadow_ctrl.polygon());
IVertexSource <T> shadow_trans;
if (m_FlattenCurves.status())
{
shadow_trans = new ConvTransform <T>(m_shape, shadow_persp);
}
else
{
shadow_trans = new ConvTransform <T>(m_path, shadow_persp);
// this will make it very smooth after the Transform
//shadow_trans = new conv_curve(shadow_trans);
}
// Render shadow
m_ras.AddPath(shadow_trans);
Renderer <T> .RenderSolid(clippingProxy, m_ras, m_sl, new RGBA_Doubles(0.2, 0.3, 0).GetAsRGBA_Bytes());
// Calculate the bounding box and extend it by the blur radius
RectDouble <T> bbox = new RectDouble <T>();
BoundingRect <T> .BoundingRectSingle(shadow_trans, 0, ref bbox);
bbox.x1.SubtractEquals(m_radius.value());
bbox.y1.SubtractEquals(m_radius.value());
bbox.x2.AddEquals(m_radius.value());
bbox.y2.AddEquals(m_radius.value());
if (m_method.cur_item() == 1)
{
// The recursive blur method represents the true Gaussian Blur,
// with theoretically infinite kernel. The restricted window size
// results in extra influence of edge pixels. It's impossible to
// solve correctly, but extending the right and top areas to another
// radius Value produces fair result.
//------------------
bbox.x2.AddEquals(m_radius.value());
bbox.y2.AddEquals(m_radius.value());
}
start_timer();
if (m_method.cur_item() != 2)
{
// Create a new pixel renderer and Attach it to the main one as a child image.
// It returns true if the attachment succeeded. It fails if the rectangle
// (bbox) is fully clipped.
//------------------
FormatRGB pixf2 = new FormatRGB(m_rbuf2, new BlenderBGR());
if (pixf2.Attach(pixf, (int)bbox.x1.ToInt(), (int)bbox.y1.ToInt(), (int)bbox.x2.ToInt(), (int)bbox.y2.ToInt()))
{
// Blur it
if (m_method.cur_item() == 0)
{
// More general method, but 30-40% slower.
//------------------
//m_stack_blur.blur(pixf2, agg::uround(m_radius.Value()));
// Faster, but bore specific.
// Works only for 8 bits per channel and only with radii <= 254.
//------------------
// agg::stack_blur_rgb24(pixf2, agg::uround(m_radius.Value()),
// agg::uround(m_radius.Value()));
}
else
{
// True Gaussian Blur, 3-5 times slower than Stack Blur,
// but still constant time of radius. Very sensitive
// to precision, doubles are must here.
//------------------
m_recursive_blur.Blur(pixf2, m_radius.value().ToDouble());
}
}
}
else
{
/*
* // Blur separate channels
* //------------------
* if(m_channel_r.status())
* {
* typedef agg::pixfmt_alpha_blend_gray<
* agg::blender_gray8,
* agg::rendering_buffer,
* 3, 2> pixfmt_gray8r;
*
* pixfmt_gray8r pixf2r(m_rbuf2);
* if(pixf2r.Attach(pixf, int(bbox.x1), int(bbox.y1), int(bbox.x2), int(bbox.y2)))
* {
* agg::stack_blur_gray8(pixf2r, agg::uround(m_radius.Value()),
* agg::uround(m_radius.Value()));
* }
* }
*
* if(m_channel_g.status())
* {
* typedef agg::pixfmt_alpha_blend_gray<
* agg::blender_gray8,
* agg::rendering_buffer,
* 3, 1> pixfmt_gray8g;
*
* pixfmt_gray8g pixf2g(m_rbuf2);
* if(pixf2g.Attach(pixf, int(bbox.x1), int(bbox.y1), int(bbox.x2), int(bbox.y2)))
* {
* agg::stack_blur_gray8(pixf2g, agg::uround(m_radius.Value()),
* agg::uround(m_radius.Value()));
* }
* }
*
* if(m_channel_b.status())
* {
* typedef agg::pixfmt_alpha_blend_gray<
* agg::blender_gray8,
* agg::rendering_buffer,
* 3, 0> pixfmt_gray8b;
*
* pixfmt_gray8b pixf2b(m_rbuf2);
* if(pixf2b.Attach(pixf, int(bbox.x1), int(bbox.y1), int(bbox.x2), int(bbox.y2)))
* {
* agg::stack_blur_gray8(pixf2b, agg::uround(m_radius.Value()),
* agg::uround(m_radius.Value()));
* }
* }
*/
}
double tm = elapsed_time();
//m_shadow_ctrl.Render(m_ras, m_sl, clippingProxy);
// Render the shape itself
//------------------
if (m_FlattenCurves.status())
{
m_ras.AddPath(m_shape);
}
else
{
m_ras.AddPath(m_path);
}
Renderer <T> .RenderSolid(clippingProxy, m_ras, m_sl, new RGBA_Doubles(0.6, 0.9, 0.7, 0.8).GetAsRGBA_Bytes());
GsvText <T> t = new GsvText <T>();
t.SetFontSize(10.0);
ConvStroke <T> st = new ConvStroke <T>(t);
st.Width = M.New <T>(1.5);
string buf;
buf = string.Format("{0:F2} ms", tm);
t.StartPoint(140.0, 30.0);
t.Text = buf;
m_ras.AddPath(st);
Renderer <T> .RenderSolid(clippingProxy, m_ras, m_sl, new RGBA_Doubles(0, 0, 0).GetAsRGBA_Bytes());
//m_method.Render(m_ras, m_sl, clippingProxy);
//m_radius.Render(m_ras, m_sl, clippingProxy);
//m_channel_r.Render(m_ras, m_sl, clippingProxy);
//m_channel_g.Render(m_ras, m_sl, clippingProxy);
//m_channel_b.Render(m_ras, m_sl, clippingProxy);
//m_FlattenCurves.Render(m_ras, m_sl, clippingProxy);
base.OnDraw();
}
