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authorscuri <scuri>2010-06-21 22:55:10 +0000
committerscuri <scuri>2010-06-21 22:55:10 +0000
commit37a92b86d13e89d0dcec92be6d23ceced29dbc36 (patch)
treefaff61ef668379212b4ed948934533c3f2fe308b /src/ftgl/FTGlyph/FTPolygonGlyph.cpp
parenta124216ee05a5d63ea8fcdafcd050ad1fadf0b09 (diff)
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Diffstat (limited to 'src/ftgl/FTGlyph/FTPolygonGlyph.cpp')
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diff --git a/src/ftgl/FTGlyph/FTPolygonGlyph.cpp b/src/ftgl/FTGlyph/FTPolygonGlyph.cpp
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+++ b/src/ftgl/FTGlyph/FTPolygonGlyph.cpp
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+/*
+ * 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();
+ }
+}
+