initial commit

ftgl/FTPolyGlyph.cpp

@@ -0,0 +1,77 @@
+#include "FTPolyGlyph.h"
+#include "FTVectoriser.h"
+
+
+FTPolyGlyph::FTPolyGlyph( FT_GlyphSlot glyph, bool useDisplayList)
+:   FTGlyph( glyph),
+    glList(0)
+{
+    if( ft_glyph_format_outline != glyph->format)
+    {
+        err = 0x14; // Invalid_Outline
+        return;
+    }
+
+    FTVectoriser vectoriser( glyph);
+
+    if(( vectoriser.ContourCount() < 1) || ( vectoriser.PointCount() < 3))
+    {
+        return;
+    }
+    
+    unsigned int horizontalTextureScale = glyph->face->size->metrics.x_ppem * 64;
+    unsigned int verticalTextureScale = glyph->face->size->metrics.y_ppem * 64;        
+        
+    vectoriser.MakeMesh( 1.0);
+    
+    if( useDisplayList)
+    {
+        glList = glGenLists( 1);
+        glNewList( glList, GL_COMPILE);
+    }
+
+    const FTMesh* mesh = vectoriser.GetMesh();
+    for( unsigned int index = 0; index < mesh->TesselationCount(); ++index)
+    {
+        const FTTesselation* subMesh = mesh->Tesselation( index);
+        unsigned int polyonType = subMesh->PolygonType();
+
+        glBegin( polyonType);
+            for( unsigned int pointIndex = 0; pointIndex < subMesh->PointCount(); ++pointIndex)
+            {
+                FTPoint point = subMesh->Point(pointIndex);
+                
+                glTexCoord2f( point.X() / horizontalTextureScale,
+                              point.Y() / verticalTextureScale);
+                
+                glVertex3f( point.X() / 64.0f,
+                            point.Y() / 64.0f,
+                            0.0f);
+            }
+        glEnd();
+    }
+
+    if(useDisplayList)
+    {
+        glEndList();
+    }
+}
+
+
+FTPolyGlyph::~FTPolyGlyph()
+{
+    glDeleteLists( glList, 1);
+}
+
+
+const FTPoint& FTPolyGlyph::Render( const FTPoint& pen)
+{
+    glTranslatef(  pen.X(),  pen.Y(), 0.0f);
+
+    if( glList)
+    {
+        glCallList( glList);    
+    }
+    
+    return advance;
+}