FTGlyph* FTGLTextureFont::MakeGlyph (unsigned int glyphIndex) {
FT_GlyphSlot ftGlyph = face.Glyph (glyphIndex, FT_LOAD_NO_HINTING);
if (ftGlyph) {
glyphHeight = static_cast<int> (charSize.Height());
glyphWidth = static_cast<int> (charSize.Width());
if (textureIDList.empty()) {
textureIDList.push_back (CreateTexture());
xOffset = yOffset = padding;
}
if (xOffset > (textureWidth - glyphWidth)) {
xOffset = padding;
yOffset += glyphHeight;
if (yOffset > (textureHeight - glyphHeight)) {
textureIDList.push_back (CreateTexture());
yOffset = padding;
}
}
FTTextureGlyph* tempGlyph =
new FTTextureGlyph (ftGlyph, textureIDList[textureIDList.size() - 1],
xOffset, yOffset, textureWidth, textureHeight);
xOffset += static_cast<int> (tempGlyph->BBox().upperX - tempGlyph->BBox().lowerX + padding);
--remGlyphs;
return tempGlyph;
}
err = face.Error();
return NULL;
}
FTGlyph* FTTextureFontImpl::MakeGlyphImpl(FT_GlyphSlot ftGlyph)
{
glyphHeight = static_cast<int>(charSize.Height() + 0.5);
glyphWidth = static_cast<int>(charSize.Width() + 0.5);
if(glyphHeight < 1) glyphHeight = 1;
if(glyphWidth < 1) glyphWidth = 1;
if(textureIDList.empty())
{
textureIDList.push_back(CreateTexture());
xOffset = yOffset = padding;
}
if(xOffset > (textureWidth - glyphWidth))
{
xOffset = padding;
yOffset += glyphHeight;
if(yOffset > (textureHeight - glyphHeight))
{
textureIDList.push_back(CreateTexture());
yOffset = padding;
}
}
FTTextureGlyph* tempGlyph = new FTTextureGlyph(ftGlyph, textureIDList[textureIDList.size() - 1],
xOffset, yOffset, textureWidth, textureHeight);
xOffset += static_cast<int>(tempGlyph->BBox().Upper().X() - tempGlyph->BBox().Lower().X() + padding + 0.5);
--remGlyphs;
return tempGlyph;
}
FTGlyph* FTGLTextureFont::MakeGlyph( unsigned int g)
{
FT_Glyph* ftGlyph = face.Glyph( g, FT_LOAD_NO_HINTING);
if( ftGlyph)
{
// Estimate the glyph size size - global bbox
glyphHeight = ( charSize.Height());
glyphWidth = ( charSize.Width());
// Is there a current texture
if( numTextures == 0)
{
glTextureID[0] = CreateTexture();
xOffset = yOffset = padding;
++numTextures;
}
// will it fit in the current texture
if( xOffset > ( textureWidth - glyphWidth))
{
xOffset = padding;
yOffset += glyphHeight;
if( yOffset > ( textureHeight - glyphHeight))
{
// no - make a new texture
glTextureID[numTextures] = CreateTexture();
yOffset = padding;
++numTextures;
}
}
// yes - load the glyph
FTTextureGlyph* tempGlyph = new FTTextureGlyph( *ftGlyph, glTextureID[numTextures - 1],
xOffset, yOffset, textureWidth, textureHeight);
// FIXME ceiling
xOffset += (int)(tempGlyph->BBox().x2 - tempGlyph->BBox().x1 + padding);
--remGlyphs;
return tempGlyph;
}
err = face.Error();
return NULL;
}
