/**
* Caches the given font glyph in the instance font texture buffer.
*
* This routine renders and stores the requested glyph's bitmap and relevant information into its own quickly addressible
* structure within an instance-specific map.
*
* @param charCode The requested glyph's character code.
* @return A pointer to the allocated font structure.
*/
ftgxCharData *FreeTypeGX::cacheGlyphData(wchar_t charCode)
{
FT_UInt gIndex;
uint16_t textureWidth = 0, textureHeight = 0;
gIndex = FT_Get_Char_Index( ftFace, charCode );
if (!FT_Load_Glyph(ftFace, gIndex, FT_LOAD_DEFAULT )) {
FT_Render_Glyph( ftSlot, FT_RENDER_MODE_NORMAL );
if(ftSlot->format == FT_GLYPH_FORMAT_BITMAP) {
FT_Bitmap *glyphBitmap = &ftSlot->bitmap;
textureWidth = adjustTextureWidth(glyphBitmap->width, this->textureFormat);
textureHeight = adjustTextureHeight(glyphBitmap->rows, this->textureFormat);
this->fontData[charCode] = (ftgxCharData){
ftSlot->bitmap_left,
ftSlot->advance.x >> 6,
gIndex,
textureWidth,
textureHeight,
ftSlot->bitmap_top,
ftSlot->bitmap_top,
glyphBitmap->rows - ftSlot->bitmap_top,
NULL
};
this->loadGlyphData(glyphBitmap, &this->fontData[charCode]);
return &this->fontData[charCode];
}
/**
* Caches the given font glyph in the instance font texture buffer.
*
* This routine renders and stores the requested glyph's bitmap and relevant information into its own quickly addressable
* structure within an instance-specific map.
*
* @param charCode The requested glyph's character code.
* @return A pointer to the allocated font structure.
*/
ftgxCharData *FreeTypeGX::cacheGlyphData(wchar_t charCode) {
FT_UInt gIndex;
uint16_t textureWidth = 0, textureHeight = 0;
gIndex = FT_Get_Char_Index( this->ftFace, charCode );
if (!FT_Load_Glyph(this->ftFace, gIndex, FT_LOAD_DEFAULT | FT_LOAD_RENDER)) {
if(this->ftFace->glyph->format == FT_GLYPH_FORMAT_BITMAP) {
FT_Bitmap *glyphBitmap = &(this->ftFace->glyph->bitmap);
textureWidth = adjustTextureWidth(glyphBitmap->width, this->textureFormat);
textureHeight = adjustTextureHeight(glyphBitmap->rows, this->textureFormat);
this->fontData[charCode] = (ftgxCharData){
this->ftFace->glyph->advance.x >> 6,
gIndex,
textureWidth,
textureHeight,
this->ftFace->glyph->bitmap_top,
this->ftFace->glyph->bitmap_top,
textureHeight - this->ftFace->glyph->bitmap_top,
NULL
};
this->loadGlyphData(glyphBitmap, &this->fontData[charCode]);
return &this->fontData[charCode];
}
}
