image_resample_application(PixelFormats format, ERenderOrigin RenderOrigin)
: base(format, RenderOrigin)
{
m_gamma_lut = new GammaLut(2.0);
m_quad = new AGG.UI.polygon_ctrl <T>(4, 5.0);
m_trans_type = new AGG.UI.rbox_ctrl <T>(400, 5.0, 430 + 170.0, 100.0);
m_gamma = new AGG.UI.SliderWidget <T>(5.0, 5.0 + 15 * 0, 400 - 5, 10.0 + 15 * 0);
m_blur = new AGG.UI.SliderWidget <T>(5.0, 5.0 + 15 * 1, 400 - 5, 10.0 + 15 * 1);
m_old_gamma = M.New <T>(2);
g_rasterizer = new RasterizerScanlineAA <T>();
g_scanline = new ScanlineUnpacked8();
m_trans_type.text_size(7);
m_trans_type.add_item("Affine No Resample");
m_trans_type.add_item("Affine Resample");
m_trans_type.add_item("Perspective No Resample LERP");
m_trans_type.add_item("Perspective No Resample Exact");
m_trans_type.add_item("Perspective Resample LERP");
m_trans_type.add_item("Perspective Resample Exact");
m_trans_type.cur_item(4);
AddChild(m_trans_type);
m_gamma.range(0.5, 3.0);
m_gamma.value(2.0);
m_gamma.label("Gamma={0:F3}");
AddChild(m_gamma);
m_blur.range(0.5, 5.0);
m_blur.value(1.0);
m_blur.label("Blur={0:F3}");
AddChild(m_blur);
}
public styles_gouraud(mesh_ctrl mesh, GammaLut gamma)
{
uint i;
for (i = 0; i < mesh.num_triangles(); i++)
{
mesh_triangle t = mesh.triangle(i);
mesh_point p1 = mesh.vertex(t.p1);
mesh_point p2 = mesh.vertex(t.p2);
mesh_point p3 = mesh.vertex(t.p3);
RGBA_Bytes c1 = p1.color;
RGBA_Bytes c2 = p2.color;
RGBA_Bytes c3 = p3.color;
c1.ApplyGammaDir(gamma);
c2.ApplyGammaDir(gamma);
c3.ApplyGammaDir(gamma);
SpanGouraudRgba <T> gouraud = new SpanGouraudRgba <T>(c1, c2, c3,
p1.x, p1.y,
p2.x, p2.y,
p3.x, p3.y);
gouraud.Prepare();
m_triangles.Add(gouraud);
}
}
//--------------------------------------------------------------------
public RGBA_Bytes ApplyGammaDir(GammaLut gamma)
{
//R_Byte = gamma.Dir((byte)R_Byte);
//G_Byte = gamma.Dir((byte)G_Byte);
//B_Byte = gamma.Dir((byte)B_Byte);
return(new RGBA_Bytes(
gamma.Dir((byte)R_Byte),
gamma.Dir((byte)G_Byte),
gamma.Dir((byte)B_Byte),
A_Byte));
}
//--------------------------------------------------------------------
public void ApplyGammaDir(GammaLut gamma)
{
R_Byte = gamma.Dir((byte)R_Byte);
G_Byte = gamma.Dir((byte)G_Byte);
B_Byte = gamma.Dir((byte)B_Byte);
}
//--------------------------------------------------------------------
public void ApplyGammaDir(GammaLut gamma)
{
R_Byte = gamma.Dir((byte)R_Byte);
G_Byte = gamma.Dir((byte)G_Byte);
B_Byte = gamma.Dir((byte)B_Byte);
}
public override void OnDraw()
{
GammaLut gamma = new GammaLut(m_gamma.value().ToDouble());
IBlender NormalBlender = new BlenderBGRA();
IBlender GammaBlender = new BlenderGammaBGRA(gamma);
FormatRGBA pixf = new FormatRGBA(rbuf_window(), NormalBlender);
FormatClippingProxy clippingProxy = new FormatClippingProxy(pixf);
clippingProxy.Clear(m_white_on_black.status() ? new RGBA_Doubles(0, 0, 0) : new RGBA_Doubles(1, 1, 1));
RasterizerScanlineAA <T> ras = new RasterizerScanlineAA <T>();
ScanlinePacked8 sl = new ScanlinePacked8();
Ellipse <T> e = new Ellipse <T>();
// TODO: If you drag the control circles below the bottom of the window we get an exception. This does not happen in AGG.
// It needs to be debugged. Turning on clipping fixes it. But standard agg works without clipping. Could be a bigger problem than this.
//ras.clip_box(0, 0, width(), height());
// Render two "control" circles
e.Init(m_x[0], m_y[0], M.New <T>(3), M.New <T>(3), 16);
ras.AddPath(e);
Renderer <T> .RenderSolid(clippingProxy, ras, sl, new RGBA_Bytes(127, 127, 127));
e.Init(m_x[1], m_y[1], M.New <T>(3), M.New <T>(3), 16);
ras.AddPath(e);
Renderer <T> .RenderSolid(clippingProxy, ras, sl, new RGBA_Bytes(127, 127, 127));
T d = m_offset.value();
// Creating a rounded rectangle
RoundedRect <T> r = new RoundedRect <T>(m_x[0].Add(d), m_y[0].Add(d), m_x[1].Add(d), m_y[1].Add(d), m_radius.value());
r.NormalizeRadius();
// Drawing as an outline
if (!m_DrawAsOutlineCheckBox.status())
{
ConvStroke <T> p = new ConvStroke <T>(r);
p.Width = M.One <T>();
ras.AddPath(p);
}
else
{
ras.AddPath(r);
}
pixf.Blender = GammaBlender;
Renderer <T> .RenderSolid(clippingProxy, ras, sl, m_white_on_black.status()?new RGBA_Bytes(1, 1, 1) : new RGBA_Bytes(0, 0, 0));
// this was in the original demo, but it does nothing because we changed the blender not the gamma function.
//ras.gamma(new gamma_none());
// so let's change the blender instead
pixf.Blender = NormalBlender;
// Render the controls
//m_radius.Render(ras, sl, clippingProxy);
//m_gamma.Render(ras, sl, clippingProxy);
//m_offset.Render(ras, sl, clippingProxy);
//m_white_on_black.Render(ras, sl, clippingProxy);
//m_DrawAsOutlineCheckBox.Render(ras, sl, clippingProxy);
base.OnDraw();
}
