66 lines
1.5 KiB
C++
66 lines
1.5 KiB
C++
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#include <string>
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#include "FTBitmapGlyph.h"
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FTBitmapGlyph::FTBitmapGlyph( FT_GlyphSlot glyph)
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: FTGlyph( glyph),
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destWidth(0),
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destHeight(0),
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data(0)
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{
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err = FT_Render_Glyph( glyph, FT_RENDER_MODE_MONO);
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if( err || ft_glyph_format_bitmap != glyph->format)
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{
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return;
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}
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FT_Bitmap bitmap = glyph->bitmap;
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unsigned int srcWidth = bitmap.width;
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unsigned int srcHeight = bitmap.rows;
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unsigned int srcPitch = bitmap.pitch;
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destWidth = srcWidth;
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destHeight = srcHeight;
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destPitch = srcPitch;
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if( destWidth && destHeight)
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{
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data = new unsigned char[destPitch * destHeight];
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unsigned char* dest = data + (( destHeight - 1) * destPitch);
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unsigned char* src = bitmap.buffer;
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for( unsigned int y = 0; y < srcHeight; ++y)
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{
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memcpy( dest, src, srcPitch);
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dest -= destPitch;
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src += srcPitch;
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}
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}
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pos = FTPoint(glyph->bitmap_left, static_cast<int>(srcHeight) - glyph->bitmap_top, 0.0);
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}
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FTBitmapGlyph::~FTBitmapGlyph()
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{
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delete [] data;
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}
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const FTPoint& FTBitmapGlyph::Render( const FTPoint& pen)
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{
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glBitmap( 0, 0, 0.0f, 0.0f, pen.X() + pos.X(), pen.Y() - pos.Y(), (const GLubyte*)0 );
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if( data)
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{
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glPixelStorei( GL_UNPACK_ROW_LENGTH, destPitch * 8);
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glBitmap( destWidth, destHeight, 0.0f, 0.0, 0.0, 0.0, (const GLubyte*)data);
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}
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glBitmap( 0, 0, 0.0f, 0.0f, -pos.X(), pos.Y(), (const GLubyte*)0 );
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return advance;
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}
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