/// <summary>
/// Custom GL "write" routine. Slow version
/// </summary>
/// <param name="text">
/// The text to print.
/// </param>
public void ftWrite(string text)
{
if ((text == "") || (text == null)) return;
// Scale to fit on Projection rendering screen with default coordinates
Gl.glPushMatrix();
switch (FT_ALIGN)
{
case FTFontAlign.FT_ALIGN_CENTERED:
Gl.glTranslatef(-ftExtent(ref text) / 2, 0, 0);
break;
case FTFontAlign.FT_ALIGN_RIGHT:
Gl.glTranslatef(-ftExtent(ref text), 0, 0);
break;
//By default it is left-aligned, so there's no need to bother translating by 0.
}
//Check Glyphs
for (int i = 0; i < text.Length; i++)
CheckGlyph((int)text[i]);
//Render
if (kerning)
{
FT_Vector kern = new FT_Vector();
for (int i = 0; i < text.Length; i++)
{
if (i > 0)
{
FT.FT_Get_Kerning(faceptr, GetChar(text[i - 1]), GetChar(text[i]), (uint)FT_Kerning_Mode.FT_KERNING_DEFAULT, out kern);
Gl.glTranslatef(kern.x >> 6, 0, 0);
}
Gl.glCallLists(1, Gl.GL_UNSIGNED_INT, (uint)text[i]);
}
}
else
Gl.glCallLists(text.Length, Gl.GL_UNSIGNED_SHORT, text);
Gl.glPopMatrix();
}
public int FT_Outline_CubicToFunc(ref FT_Vector control1, ref FT_Vector control2, ref FT_Vector to, IntPtr user)
{
/* VertexInfo to_vertex( to );
1722 VertexInfo control1_vertex( control1 );
1723 VertexInfo control2_vertex( control2 );
1724
1725 double a[2], b[2], c[2], d[2], f[2], df[2], d2f[2], d3f[2];
1726
1727 a[X] = -filled->last_vertex_.v_[X] + 3 * control1_vertex.v_[X]
1728 -3 * control2_vertex.v_[X] + to_vertex.v_[X];
1729 a[Y] = -filled->last_vertex_.v_[Y] + 3 * control1_vertex.v_[Y]
1730 -3 * control2_vertex.v_[Y] + to_vertex.v_[Y];
1731
1732 b[X] = 3 * filled->last_vertex_.v_[X] - 6 * control1_vertex.v_[X] +
1733 3 * control2_vertex.v_[X];
1734 b[Y] = 3 * filled->last_vertex_.v_[Y] - 6 * control1_vertex.v_[Y] +
1735 3 * control2_vertex.v_[Y];
1736
1737 c[X] = -3 * filled->last_vertex_.v_[X] + 3 * control1_vertex.v_[X];
1738 c[Y] = -3 * filled->last_vertex_.v_[Y] + 3 * control1_vertex.v_[Y];
1739
1740 d[X] = filled->last_vertex_.v_[X];
1741 d[Y] = filled->last_vertex_.v_[Y];
1742
1743 f[X] = d[X];
1744 f[Y] = d[Y];
1745 df[X] = c[X] * filled->delta_ + b[X] * filled->delta2_
1746 + a[X] * filled->delta3_;
1747 df[Y] = c[Y] * filled->delta_ + b[Y] * filled->delta2_
1748 + a[Y] * filled->delta3_;
1749 d2f[X] = 2 * b[X] * filled->delta2_ + 6 * a[X] * filled->delta3_;
1750 d2f[Y] = 2 * b[Y] * filled->delta2_ + 6 * a[Y] * filled->delta3_;
1751 d3f[X] = 6 * a[X] * filled->delta3_;
1752 d3f[Y] = 6 * a[Y] * filled->delta3_;
1753
1754 for ( unsigned int i = 0; i < filled->tessellation_steps_-1; i++ ) {
1755
1756 f[X] += df[X];
1757 f[Y] += df[Y];
1758
1759 VertexInfo* vertex = new VertexInfo( f );
1760
1761 vertex->v_[X] *= filled->vector_scale_;
1762 vertex->v_[Y] *= filled->vector_scale_;
1763
1764 filled->vertices_.push_back( vertex );
1765
1766 gluTessVertex( filled->tess_obj_, vertex->v_, vertex );
1767
1768 df[X] += d2f[X];
1769 df[Y] += d2f[Y];
1770 d2f[X] += d3f[X];
1771 d2f[Y] += d3f[Y];
1772 }
1773
1774 VertexInfo* vertex = new VertexInfo( to );
1775
1776 vertex->v_[X] *= filled->vector_scale_;
1777 vertex->v_[Y] *= filled->vector_scale_;
1778
1779 filled->vertices_.push_back( vertex );
1780
1781 gluTessVertex( filled->tess_obj_, vertex->v_, vertex );
1782
1783 filled->last_vertex_ = to_vertex;*/
return 0;
}
/// <summary>
/// Custom GL "write" routine.
/// </summary>
/// <param name="text">
/// The text to print.
/// </param>
public void ftWrite(string text, ref int gllist)
{
if ((text == "") || (text == null)) return;
// Scale to fit on Projection rendering screen with default coordinates
Gl.glPushMatrix();
switch (FT_ALIGN)
{
case FTFontAlign.FT_ALIGN_CENTERED:
Gl.glTranslatef(-ftExtent(ref text) / 2, 0, 0);
break;
case FTFontAlign.FT_ALIGN_RIGHT:
Gl.glTranslatef(-ftExtent(ref text), 0, 0);
break;
//By default it is left-aligned, so there's no need to bother translating by 0.
}
//Render
if ((gllist != 0))
{
Gl.glCallList(gllist);
}
else
{
for (int i = 0; i < text.Length; i++)
CheckGlyph((int)text[i]);
gllist = Gl.glGenLists(1);
Gl.glNewList(gllist, Gl.GL_COMPILE);
//byte[] textbytes = new byte[text.Length];
if (kerning)
{
FT_Vector kern = new FT_Vector();
for (int i = 0; i < text.Length; i++)
{
if (i>0)
{
FT.FT_Get_Kerning(faceptr, (uint)text[i - 1], (uint)text[i], (uint)FT_Kerning_Mode.FT_KERNING_DEFAULT, out kern);
Gl.glTranslatef(kern.x >> 6,0,0);
}
Gl.glCallLists(1, Gl.GL_UNSIGNED_INT, (uint)text[i]);
}
}
else
Gl.glCallLists(text.Length, Gl.GL_UNSIGNED_SHORT, text);
Gl.glEndList();
//textbytes = null;
}
//textbytes[i] = (byte)text[i];
//Gl.glCallLists(text.Length, Gl.GL_UNSIGNED_BYTE, textbytes);
Gl.glPopMatrix();
}
public int FT_Outline_LineToFunc(ref FT_Vector to, IntPtr user)
{
last_vector_ = to;
// vertex->v_[X] *= filled->vector_scale_;
// vertex->v_[Y] *= filled->vector_scale_;
// Glu.gluTessVertex(tess_obj_, vertex->v_, vertex );
//filled->vertices_.push_back( vertex );
return 0;
}
public int FT_Outline_ConicToFunc(ref FT_Vector control, ref FT_Vector to, IntPtr user)
{
// This is crude: Step off conics with a fixed number of increments
/*VertexInfo to_vertex( to );
1662 VertexInfo control_vertex( control );
1663
1664 double b[2], c[2], d[2], f[2], df[2], d2f[2];
1665
1666 b[X] = filled->last_vertex_.v_[X] - 2 * control_vertex.v_[X] +
1667 to_vertex.v_[X];
1668 b[Y] = filled->last_vertex_.v_[Y] - 2 * control_vertex.v_[Y] +
1669 to_vertex.v_[Y];
1670
1671 c[X] = -2 * filled->last_vertex_.v_[X] + 2 * control_vertex.v_[X];
1672 c[Y] = -2 * filled->last_vertex_.v_[Y] + 2 * control_vertex.v_[Y];
1673
1674 d[X] = filled->last_vertex_.v_[X];
1675 d[Y] = filled->last_vertex_.v_[Y];
1676
1677 f[X] = d[X];
1678 f[Y] = d[Y];
1679 df[X] = c[X] * filled->delta_ + b[X] * filled->delta2_;
1680 df[Y] = c[Y] * filled->delta_ + b[Y] * filled->delta2_;
1681 d2f[X] = 2 * b[X] * filled->delta2_;
1682 d2f[Y] = 2 * b[Y] * filled->delta2_;
1683
1684 for ( unsigned int i = 0; i < filled->tessellation_steps_-1; i++ ) {
1685
1686 f[X] += df[X];
1687 f[Y] += df[Y];
1688
1689 VertexInfo* vertex = new VertexInfo( f );
1690
1691 vertex->v_[X] *= filled->vector_scale_;
1692 vertex->v_[Y] *= filled->vector_scale_;
1693
1694 filled->vertices_.push_back( vertex );
1695
1696 gluTessVertex( filled->tess_obj_, vertex->v_, vertex );
1697
1698 df[X] += d2f[X];
1699 df[Y] += d2f[Y];
1700 }
1701
1702 VertexInfo* vertex = new VertexInfo( to );
1703
1704 vertex->v_[X] *= filled->vector_scale_;
1705 vertex->v_[Y] *= filled->vector_scale_;
1706
1707 filled->vertices_.push_back( vertex );
1708
1709 gluTessVertex( filled->tess_obj_, vertex->v_, vertex );
1710
1711 filled->last_vertex_ = to_vertex;
*/
return 0;
}
public int FT_Outline_MoveToFunc(ref FT_Vector to, IntPtr user)
{
if ( contour_open_ )
{
Glu.gluTessEndContour( tess_obj_ );
}
last_vector_ = to;
Glu.gluTessBeginContour(tess_obj_ );
contour_open_ = true;
return 0;
}
public static KerningInfo CreateKerningInfo(uint leftIndex, uint rightIndex)
{
KerningInfo info = new KerningInfo();
FT_Vector vector = new FT_Vector();
FT.FT_Get_Kerning(ftFace, leftIndex, rightIndex,
(uint)FT_Kerning_Mode.FT_KERNING_DEFAULT,
out vector);
info.HorizontalAdjust = ((double)vector.x) / 64.0d;
info.VerticalAdjust = ((double)vector.y) / 64.0d;
return info;
}
public static extern void FT_Vector_Transform(ref FT_Vector vec, ref FT_Matrix matrix);
public static extern void FT_Set_Transform(IntPtr /*FaceRec*/ face, ref FT_Matrix matrix, ref FT_Vector delta);
public static extern int FT_Get_Kerning(IntPtr /*FaceRec*/ face, uint left_glyph, uint right_glyph, uint kern_mode, out FT_Vector akerning);
