FGFS-4.1/OpenSceneGraph
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Added support for multiple graphics contexts, submission from Max Rhiener.

Browse Source 
Alas changed the indenting to use 4 spaces instead of tabs, this irons out
differences when working under Windows and Unix, keeping the identing
consistent.
This commit is contained in:
Robert Osfield
2002-01-18 22:25:51 +00:00
parent 58ead9aead
commit 4fbf4db42e
39 changed files with 2579 additions and 2443 deletions
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194
src/osgText/FTPolyGlyph.cpp
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@@ -1,6 +1,6 @@
#include "FTPolyGlyph.h"
#include "FTVectoriser.h"
#include "FTPolyGlyph.h"
#include "FTVectoriser.h"
#ifndef CALLBACK
#define CALLBACK
@@ -9,145 +9,145 @@
void CALLBACK ftglError( GLenum errCode)
{
// const GLubyte* estring;
// estring = gluErrorString( errCode);
// fprintf( stderr, "ERROR : %s\n", estring);
// exit(1);
// const GLubyte* estring;
// estring = gluErrorString( errCode);
// fprintf( stderr, "ERROR : %s\n", estring);
// exit(1);
}
void CALLBACK ftglVertex( void* data)
{
glVertex3dv( (double*)data);
glVertex3dv( (double*)data);
}
void CALLBACK ftglBegin( GLenum type)
{
glBegin( type);
glBegin( type);
}
void CALLBACK ftglEnd()
{
glEnd();
glEnd();
}
void CALLBACK ftglCombine( GLdouble coords[3], void* vertex_data[4], GLfloat weight[4], void** outData)
{
double* vertex = new double[3]; // FIXME MEM LEAK
vertex[0] = coords[0];
vertex[1] = coords[1];
vertex[2] = coords[2];
double* vertex = new double[3]; // FIXME MEM LEAK
vertex[0] = coords[0];
vertex[1] = coords[1];
vertex[2] = coords[2];
*outData = vertex;
*outData = vertex;
}
FTPolyGlyph::FTPolyGlyph( FT_Glyph glyph)
: FTGlyph(),
vectoriser(0),
numPoints(0),
numContours(0),
contourLength(0),
data(0),
glList(0)
: FTGlyph(),
vectoriser(0),
numPoints(0),
numContours(0),
contourLength(0),
data(0),
glList(0)
{
if( ft_glyph_format_outline != glyph->format)
{ return;}
if( ft_glyph_format_outline != glyph->format)
{ return;}
vectoriser = new FTVectoriser( glyph);
vectoriser->Process();
numContours = vectoriser->contours();
contourLength = new int[ numContours];
for( int c = 0; c < numContours; ++c)
{
contourLength[c] = vectoriser->contourSize( c);
}
numPoints = vectoriser->points();
data = new double[ numPoints * 3];
// FIXME MakeMesh
vectoriser->MakeOutline( data);
contourFlag = vectoriser->ContourFlag();
advance = glyph->advance.x >> 16;
vectoriser = new FTVectoriser( glyph);
vectoriser->Process();
numContours = vectoriser->contours();
contourLength = new int[ numContours];
for( int c = 0; c < numContours; ++c)
{
contourLength[c] = vectoriser->contourSize( c);
}
numPoints = vectoriser->points();
data = new double[ numPoints * 3];
// FIXME MakeMesh
vectoriser->MakeOutline( data);
contourFlag = vectoriser->ContourFlag();
advance = glyph->advance.x >> 16;
delete vectoriser;
delete vectoriser;
if ( ( numContours < 1) || ( numPoints < 3))
return;
if ( ( numContours < 1) || ( numPoints < 3))
return;
Tesselate();
Tesselate();
// discard glyph image (bitmap or not)
FT_Done_Glyph( glyph); // Why does this have to be HERE
// discard glyph image (bitmap or not)
FT_Done_Glyph( glyph); // Why does this have to be HERE
}
void FTPolyGlyph::Tesselate()
{
glList = glGenLists(1);
GLUtesselator* tobj = gluNewTess();
int d = 0;
gluTessCallback( tobj, GLU_TESS_BEGIN, (void (CALLBACK*)())ftglBegin);
gluTessCallback( tobj, GLU_TESS_VERTEX, (void (CALLBACK*)())ftglVertex);
gluTessCallback( tobj, GLU_TESS_COMBINE, (void (CALLBACK*)())ftglCombine);
gluTessCallback( tobj, GLU_TESS_END, ftglEnd);
gluTessCallback( tobj, GLU_TESS_ERROR, (void (CALLBACK*)())ftglError);
glNewList( glList, GL_COMPILE);
if( contourFlag & ft_outline_even_odd_fill) // ft_outline_reverse_fill
{
gluTessProperty( tobj, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_ODD);
}
else
{
gluTessProperty( tobj, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_NONZERO);
}
gluTessProperty( tobj, GLU_TESS_TOLERANCE, 0);
gluTessBeginPolygon( tobj, NULL);
for( int c = 0; c < numContours; ++c)
{
gluTessBeginContour( tobj);
for( int p = 0; p < ( contourLength[c]); ++p)
{
gluTessVertex( tobj, data + d, data + d);
d += 3;
}
gluTessEndContour( tobj);
}
gluTessEndPolygon( tobj);
glEndList();
glList = glGenLists(1);
GLUtesselator* tobj = gluNewTess();
int d = 0;
gluTessCallback( tobj, GLU_TESS_BEGIN, (void (CALLBACK*)())ftglBegin);
gluTessCallback( tobj, GLU_TESS_VERTEX, (void (CALLBACK*)())ftglVertex);
gluTessCallback( tobj, GLU_TESS_COMBINE, (void (CALLBACK*)())ftglCombine);
gluTessCallback( tobj, GLU_TESS_END, ftglEnd);
gluTessCallback( tobj, GLU_TESS_ERROR, (void (CALLBACK*)())ftglError);
glNewList( glList, GL_COMPILE);
if( contourFlag & ft_outline_even_odd_fill) // ft_outline_reverse_fill
{
gluTessProperty( tobj, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_ODD);
}
else
{
gluTessProperty( tobj, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_NONZERO);
}
gluTessProperty( tobj, GLU_TESS_TOLERANCE, 0);
gluTessBeginPolygon( tobj, NULL);
for( int c = 0; c < numContours; ++c)
{
gluTessBeginContour( tobj);
for( int p = 0; p < ( contourLength[c]); ++p)
{
gluTessVertex( tobj, data + d, data + d);
d += 3;
}
gluTessEndContour( tobj);
}
gluTessEndPolygon( tobj);
glEndList();
gluDeleteTess( tobj);
gluDeleteTess( tobj);
}
FTPolyGlyph::~FTPolyGlyph()
{
delete [] data;
delete [] contourLength;
delete [] data;
delete [] contourLength;
}
float FTPolyGlyph::Render( const FT_Vector& pen)
{
if( glList)
{
glTranslatef( pen.x, pen.y, 0);
glCallList( glList);
glTranslatef( -pen.x, -pen.y, 0);
}
return advance;
if( glList)
{
glTranslatef( pen.x, pen.y, 0);
glCallList( glList);
glTranslatef( -pen.x, -pen.y, 0);
}
return advance;
}