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1 files changed, 156 insertions, 0 deletions

diff --git a/src/ftgl/FTGlyph/FTPolygonGlyph.cpp b/src/ftgl/FTGlyph/FTPolygonGlyph.cpp
new file mode 100644
index 0000000..6db3581
--- /dev/null
+++ b/src/ftgl/FTGlyph/FTPolygonGlyph.cpp
@@ -0,0 +1,156 @@
+/*
+ * FTGL - OpenGL font library
+ *
+ * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
+ * Copyright (c) 2008 Éric Beets <ericbeets@free.fr>
+ * Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include "FTGL/ftgl.h"
+
+#include "FTInternals.h"
+#include "FTPolygonGlyphImpl.h"
+#include "FTVectoriser.h"
+
+
+//
+//  FTGLPolyGlyph
+//
+
+
+FTPolygonGlyph::FTPolygonGlyph(FT_GlyphSlot glyph, float outset,
+                               bool useDisplayList) :
+    FTGlyph(new FTPolygonGlyphImpl(glyph, outset, useDisplayList))
+{}
+
+
+FTPolygonGlyph::~FTPolygonGlyph()
+{}
+
+
+const FTPoint& FTPolygonGlyph::Render(const FTPoint& pen, int renderMode)
+{
+    FTPolygonGlyphImpl *myimpl = dynamic_cast<FTPolygonGlyphImpl *>(impl);
+    return myimpl->RenderImpl(pen, renderMode);
+}
+
+
+//
+//  FTGLPolyGlyphImpl
+//
+
+
+FTPolygonGlyphImpl::FTPolygonGlyphImpl(FT_GlyphSlot glyph, float _outset,
+                                       bool useDisplayList)
+:   FTGlyphImpl(glyph),
+    glList(0)
+{
+    if(ft_glyph_format_outline != glyph->format)
+    {
+        err = 0x14; // Invalid_Outline
+        return;
+    }
+
+    vectoriser = new FTVectoriser(glyph);
+
+    if((vectoriser->ContourCount() < 1) || (vectoriser->PointCount() < 3))
+    {
+        delete vectoriser;
+        vectoriser = NULL;
+        return;
+    }
+
+
+    hscale = glyph->face->size->metrics.x_ppem * 64;
+    vscale = glyph->face->size->metrics.y_ppem * 64;
+    outset = _outset;
+
+    if(useDisplayList)
+    {
+        glList = glGenLists(1);
+        glNewList(glList, GL_COMPILE);
+
+        DoRender();
+
+        glEndList();
+
+        delete vectoriser;
+        vectoriser = NULL;
+    }
+}
+
+
+FTPolygonGlyphImpl::~FTPolygonGlyphImpl()
+{
+    if(glList)
+    {
+        glDeleteLists(glList, 1);
+    }
+    else if(vectoriser)
+    {
+        delete vectoriser;
+    }
+}
+
+
+const FTPoint& FTPolygonGlyphImpl::RenderImpl(const FTPoint& pen,
+                                              int renderMode)
+{
+    glTranslatef(pen.Xf(), pen.Yf(), pen.Zf());
+    if(glList)
+    {
+        glCallList(glList);
+    }
+    else if(vectoriser)
+    {
+        DoRender();
+    }
+    glTranslatef(-pen.Xf(), -pen.Yf(), -pen.Zf());
+
+    return advance;
+}
+
+
+void FTPolygonGlyphImpl::DoRender()
+{
+    vectoriser->MakeMesh(1.0, 1, outset);
+
+    const FTMesh *mesh = vectoriser->GetMesh();
+
+    for(unsigned int t = 0; t < mesh->TesselationCount(); ++t)
+    {
+        const FTTesselation* subMesh = mesh->Tesselation(t);
+        unsigned int polygonType = subMesh->PolygonType();
+
+        glBegin(polygonType);
+            for(unsigned int i = 0; i < subMesh->PointCount(); ++i)
+            {
+                FTPoint point = subMesh->Point(i);
+                glTexCoord2f(point.Xf() / hscale, point.Yf() / vscale);
+                glVertex3f(point.Xf() / 64.0f, point.Yf() / 64.0f, 0.0f);
+            }
+        glEnd();
+    }
+}
+