Hash :
934106a4
Author :
Date :
2002-12-31T04:07:34
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#include <string>
#include "FTBitmapGlyph.h"
FTBitmapGlyph::FTBitmapGlyph( FT_Glyph glyph)
: FTGlyph( glyph),
destWidth(0),
destHeight(0),
data(0)
{
err = FT_Glyph_To_Bitmap( &glyph, ft_render_mode_mono, 0, 1);
if( err || ft_glyph_format_bitmap != glyph->format)
{
return;
}
FT_BitmapGlyph bitmap = (FT_BitmapGlyph)glyph;
FT_Bitmap* source = &bitmap->bitmap;
unsigned int srcWidth = source->width;
unsigned int srcHeight = source->rows;
unsigned int srcPitch = source->pitch;
destWidth = srcWidth;
destHeight = srcHeight;
destPitch = srcPitch;
if( destWidth && destHeight)
{
data = new unsigned char[destPitch * destHeight];
unsigned char* dest = data + (( destHeight - 1) * destPitch);
unsigned char* src = source->buffer;
for( unsigned int y = 0; y < srcHeight; ++y)
{
memcpy( dest, src, srcPitch);
dest -= destPitch;
src += srcPitch;
}
}
pos.x = bitmap->left;
pos.y = static_cast<int>(srcHeight) - bitmap->top;
FT_Done_Glyph( glyph );
}
FTBitmapGlyph::~FTBitmapGlyph()
{
delete [] data;
}
float FTBitmapGlyph::Render( const FTPoint& pen)
{
if( data)
{
glBitmap( 0, 0, 0.0, 0.0, pen.x + pos.x, pen.y - pos.y, (const GLubyte*)0 );
glPixelStorei( GL_UNPACK_ROW_LENGTH, destPitch * 8);
glBitmap( destWidth, destHeight, 0.0f, 0.0, 0.0, 0.0, (const GLubyte*)data);
glBitmap( 0, 0, 0.0, 0.0, -pen.x - pos.x, -pen.y + pos.y, (const GLubyte*)0 );
}
return advance;
}