* Fix displaylist usage in FTExtrdGlyph. Closes SourceForge ticket #1945392.
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diff --git a/include/FTExtrdGlyph.h b/include/FTExtrdGlyph.h
index 9dec18b..eb98888 100644
--- a/include/FTExtrdGlyph.h
+++ b/include/FTExtrdGlyph.h
@@ -85,6 +85,20 @@ class FTGL_EXPORT FTExtrdGlyph : public FTGlyph
private:
/**
+ * Private rendering methods.
+ */
+ void RenderFront();
+ void RenderBack();
+ void RenderSide();
+
+ /**
+ * Private rendering variables.
+ */
+ unsigned int hscale, vscale;
+ float depth;
+ FTVectoriser *vectoriser;
+
+ /**
* OpenGL display list
*/
GLuint glList;
diff --git a/src/FTExtrdGlyph.cpp b/src/FTExtrdGlyph.cpp
index 6d11f38..8e9d778 100644
--- a/src/FTExtrdGlyph.cpp
+++ b/src/FTExtrdGlyph.cpp
@@ -10,10 +10,10 @@
* 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.
@@ -52,26 +52,90 @@ FTExtrdGlyph::FTExtrdGlyph(FT_GlyphSlot glyph, float depth, float frontOutset, f
return;
}
- FTVectoriser vectoriser(glyph, frontOutset * 64.0f, backOutset * 64.0f);
- if((vectoriser.ContourCount() < 1) || (vectoriser.PointCount() < 3))
+ vectoriser = new FTVectoriser(glyph, frontOutset * 64.0f,
+ backOutset * 64.0f);
+ if((vectoriser->ContourCount() < 1) || (vectoriser->PointCount() < 3))
{
+ delete vectoriser;
+ vectoriser = NULL;
return;
}
- /* Front face */
+ this->hscale = glyph->face->size->metrics.x_ppem * 64;
+ this->vscale = glyph->face->size->metrics.y_ppem * 64;
+ this->depth = depth;
+
if(useDisplayList)
{
glList = glGenLists(3);
+
+ /* Front face */
glNewList(glList + 0, GL_COMPILE);
+ RenderFront();
+ glEndList();
+
+ /* Back face */
+ glNewList(glList + 1, GL_COMPILE);
+ RenderBack();
+ glEndList();
+
+ /* Side face */
+ glNewList(glList + 2, GL_COMPILE);
+ RenderSide();
+ glEndList();
+
+ delete vectoriser;
+ vectoriser = NULL;
}
+}
- vectoriser.MakeMesh(1.0, 1);
- glNormal3d(0.0, 0.0, 1.0);
- unsigned int hscale = glyph->face->size->metrics.x_ppem * 64;
- unsigned int vscale = glyph->face->size->metrics.y_ppem * 64;
+FTExtrdGlyph::~FTExtrdGlyph()
+{
+ if(useDisplayList)
+ {
+ glDeleteLists(glList, 1);
+ }
+ else if(vectoriser)
+ {
+ delete vectoriser;
+ }
+}
+
+
+const FTPoint& FTExtrdGlyph::Render(const FTPoint& pen, int renderMode)
+{
+ glTranslatef(pen.X(), pen.Y(), 0);
+ if(glList)
+ {
+ if(renderMode & FTGL::RENDER_FRONT)
+ glCallList(glList + 0);
+ if(renderMode & FTGL::RENDER_BACK)
+ glCallList(glList + 1);
+ if(renderMode & FTGL::RENDER_SIDE)
+ glCallList(glList + 2);
+ }
+ else if(vectoriser)
+ {
+ if(renderMode & FTGL::RENDER_FRONT)
+ RenderFront();
+ if(renderMode & FTGL::RENDER_BACK)
+ RenderBack();
+ if(renderMode & FTGL::RENDER_SIDE)
+ RenderSide();
+ }
+ glTranslatef(-pen.X(), -pen.Y(), 0);
+
+ return advance;
+}
- const FTMesh* mesh = vectoriser.GetMesh();
+
+void FTExtrdGlyph::RenderFront()
+{
+ vectoriser->MakeMesh(1.0, 1);
+ glNormal3d(0.0, 0.0, 1.0);
+
+ const FTMesh *mesh = vectoriser->GetMesh();
for(unsigned int j = 0; j < mesh->TesselationCount(); ++j)
{
const FTTesselation* subMesh = mesh->Tesselation(j);
@@ -91,21 +155,15 @@ FTExtrdGlyph::FTExtrdGlyph(FT_GlyphSlot glyph, float depth, float frontOutset, f
}
glEnd();
}
- if(useDisplayList)
- {
- glEndList();
- }
+}
- /* Back face */
- if(useDisplayList)
- {
- glNewList(glList + 1, GL_COMPILE);
- }
- vectoriser.MakeMesh(-1.0, 2);
+void FTExtrdGlyph::RenderBack()
+{
+ vectoriser->MakeMesh(-1.0, 2);
glNormal3d(0.0, 0.0, -1.0);
- mesh = vectoriser.GetMesh();
+ const FTMesh *mesh = vectoriser->GetMesh();
for(unsigned int j = 0; j < mesh->TesselationCount(); ++j)
{
const FTTesselation* subMesh = mesh->Tesselation(j);
@@ -125,22 +183,16 @@ FTExtrdGlyph::FTExtrdGlyph(FT_GlyphSlot glyph, float depth, float frontOutset, f
}
glEnd();
}
- if(useDisplayList)
- {
- glEndList();
- }
+}
- /* Side face */
- if(useDisplayList)
- {
- glNewList(glList + 2, GL_COMPILE);
- }
- int contourFlag = vectoriser.ContourFlag();
+void FTExtrdGlyph::RenderSide()
+{
+ int contourFlag = vectoriser->ContourFlag();
- for(size_t c = 0; c < vectoriser.ContourCount(); ++c)
+ for(size_t c = 0; c < vectoriser->ContourCount(); ++c)
{
- const FTContour* contour = vectoriser.Contour(c);
+ const FTContour* contour = vectoriser->Contour(c);
unsigned int n = contour->PointCount();
if(n < 2)
@@ -179,34 +231,5 @@ FTExtrdGlyph::FTExtrdGlyph(FT_GlyphSlot glyph, float depth, float frontOutset, f
}
glEnd();
}
-
- if(useDisplayList)
- {
- glEndList();
- }
-}
-
-
-FTExtrdGlyph::~FTExtrdGlyph()
-{
- glDeleteLists(glList, 1);
-}
-
-
-const FTPoint& FTExtrdGlyph::Render(const FTPoint& pen, int renderMode)
-{
- if(glList)
- {
- glTranslatef(pen.X(), pen.Y(), 0);
- if(renderMode & FTGL::RENDER_FRONT)
- glCallList(glList + 0);
- if(renderMode & FTGL::RENDER_BACK)
- glCallList(glList + 1);
- if(renderMode & FTGL::RENDER_SIDE)
- glCallList(glList + 2);
- glTranslatef(-pen.X(), -pen.Y(), 0);
- }
-
- return advance;
}