bool FontAtlas::prepareLetterDefinitions(const std::u16string& utf16Text)
{
if (_fontFreeType == nullptr)
{
return false;
}
std::unordered_map<unsigned short, unsigned short> codeMapOfNewChar;
findNewCharacters(utf16Text, codeMapOfNewChar);
if (codeMapOfNewChar.empty())
{
return false;
}
int adjustForDistanceMap = _letterPadding / 2;
int adjustForExtend = _letterEdgeExtend / 2;
long bitmapWidth;
long bitmapHeight;
Rect tempRect;
FontLetterDefinition tempDef;
auto scaleFactor = CC_CONTENT_SCALE_FACTOR();
auto pixelFormat = _fontFreeType->getOutlineSize() > 0 ? CCTexture2DPixelFormat::kCCTexture2DPixelFormat_AI88 : CCTexture2DPixelFormat::kCCTexture2DPixelFormat_A8;
float startY = _currentPageOrigY;
for (auto&& it : codeMapOfNewChar)
{
auto bitmap = _fontFreeType->getGlyphBitmap(it.second, bitmapWidth, bitmapHeight, tempRect, tempDef.xAdvance);
if (bitmap && bitmapWidth > 0 && bitmapHeight > 0)
{
tempDef.validDefinition = true;
tempDef.width = tempRect.size.width + _letterPadding + _letterEdgeExtend;
tempDef.height = tempRect.size.height + _letterPadding + _letterEdgeExtend;
tempDef.offsetX = tempRect.origin.x + adjustForDistanceMap + adjustForExtend;
tempDef.offsetY = _fontAscender + tempRect.origin.y - adjustForDistanceMap - adjustForExtend;
if (bitmapHeight > _currLineHeight)
{
_currLineHeight = static_cast<int>(bitmapHeight) + _letterPadding + _letterEdgeExtend + 1;
}
if (_currentPageOrigX + tempDef.width > CacheTextureWidth)
{
_currentPageOrigY += _currLineHeight;
_currLineHeight = 0;
_currentPageOrigX = 0;
if (_currentPageOrigY + _lineHeight >= CacheTextureHeight)
{
unsigned char *data = nullptr;
if (pixelFormat == CCTexture2DPixelFormat::kCCTexture2DPixelFormat_AI88)
{
data = _currentPageData + CacheTextureWidth * (int)startY * 2;
}
else
{
data = _currentPageData + CacheTextureWidth * (int)startY;
}
_atlasTextures[_currentPage]->updateWithData(data, 0, startY,
CacheTextureWidth, CacheTextureHeight - startY);
startY = 0.0f;
_currentPageOrigY = 0;
memset(_currentPageData, 0, _currentPageDataSize);
_currentPage++;
auto tex = new (std::nothrow) Texture2D;
if (_antialiasEnabled)
{
tex->setAntiAliasTexParameters();
}
else
{
tex->setAliasTexParameters();
}
tex->initWithData(_currentPageData, _currentPageDataSize,
pixelFormat, CacheTextureWidth, CacheTextureHeight, Size(CacheTextureWidth, CacheTextureHeight));
addTexture(tex, _currentPage);
tex->release();
}
}
_fontFreeType->renderCharAt(_currentPageData, _currentPageOrigX + adjustForExtend, _currentPageOrigY + adjustForExtend, bitmap, bitmapWidth, bitmapHeight);
tempDef.U = _currentPageOrigX;
tempDef.V = _currentPageOrigY;
tempDef.textureID = _currentPage;
_currentPageOrigX += tempDef.width + 1;
// take from pixels to points
tempDef.width = tempDef.width / scaleFactor;
tempDef.height = tempDef.height / scaleFactor;
tempDef.U = tempDef.U / scaleFactor;
tempDef.V = tempDef.V / scaleFactor;
}
else{
if (tempDef.xAdvance)
tempDef.validDefinition = true;
else
tempDef.validDefinition = false;
tempDef.width = 0;
tempDef.height = 0;
tempDef.U = 0;
tempDef.V = 0;
tempDef.offsetX = 0;
tempDef.offsetY = 0;
tempDef.textureID = 0;
_currentPageOrigX += 1;
}
_letterDefinitions[it.first] = tempDef;
}
unsigned char *data = nullptr;
if (pixelFormat == CCTexture2DPixelFormat::kCCTexture2DPixelFormat_AI88)
{
data = _currentPageData + CacheTextureWidth * (int)startY * 2;
}
else
{
data = _currentPageData + CacheTextureWidth * (int)startY;
}
_atlasTextures[_currentPage]->updateWithData(data, 0, startY, CacheTextureWidth, _currentPageOrigY - startY + _lineHeight);
return true;
}
bool FontAtlas::prepareLetterDefinitions(const std::u16string& utf16String)
{
if (_fontFreeType == nullptr)
{
return false;
}
std::unordered_map<unsigned short, unsigned short> newCharsMap;
findNewCharacters(utf16String, newCharsMap);
if (newCharsMap.empty())
{
return false;
}
float offsetAdjust = _letterPadding / 2;
long bitmapWidth;
long bitmapHeight;
Rect tempRect;
FontLetterDefinition tempDef;
auto scaleFactor = CC_CONTENT_SCALE_FACTOR();
auto pixelFormat = _fontFreeType->getOutlineSize() > 0 ? Texture2D::PixelFormat::AI88 : Texture2D::PixelFormat::A8;
int bottomHeight = _commonLineHeight - _fontAscender;
float startY = _currentPageOrigY;
for (auto&& it : newCharsMap)
{
auto bitmap = _fontFreeType->getGlyphBitmap(it.second, bitmapWidth, bitmapHeight, tempRect, tempDef.xAdvance);
if (bitmap)
{
tempDef.validDefinition = true;
tempDef.letteCharUTF16 = it.first;
tempDef.width = tempRect.size.width + _letterPadding;
tempDef.height = tempRect.size.height + _letterPadding;
tempDef.offsetX = tempRect.origin.x + offsetAdjust;
tempDef.offsetY = _fontAscender + tempRect.origin.y - offsetAdjust;
tempDef.clipBottom = bottomHeight - (tempDef.height + tempRect.origin.y + offsetAdjust);
if (_currentPageOrigX + tempDef.width > CacheTextureWidth)
{
_currentPageOrigY += _commonLineHeight;
_currentPageOrigX = 0;
if (_currentPageOrigY + _commonLineHeight >= CacheTextureHeight)
{
unsigned char *data = nullptr;
if (pixelFormat == Texture2D::PixelFormat::AI88)
{
data = _currentPageData + CacheTextureWidth * (int)startY * 2;
}
else
{
data = _currentPageData + CacheTextureWidth * (int)startY;
}
_atlasTextures[_currentPage]->updateWithData(data, 0, startY,
CacheTextureWidth, CacheTextureHeight - startY);
startY = 0.0f;
_currentPageOrigY = 0;
memset(_currentPageData, 0, _currentPageDataSize);
_currentPage++;
auto tex = new (std::nothrow) Texture2D;
if (_antialiasEnabled)
{
tex->setAntiAliasTexParameters();
}
else
{
tex->setAliasTexParameters();
}
tex->initWithData(_currentPageData, _currentPageDataSize,
pixelFormat, CacheTextureWidth, CacheTextureHeight, Size(CacheTextureWidth, CacheTextureHeight));
addTexture(tex, _currentPage);
tex->release();
}
}
_fontFreeType->renderCharAt(_currentPageData, _currentPageOrigX, _currentPageOrigY, bitmap, bitmapWidth, bitmapHeight);
tempDef.U = _currentPageOrigX;
tempDef.V = _currentPageOrigY;
tempDef.textureID = _currentPage;
_currentPageOrigX += tempDef.width + 1;
// take from pixels to points
tempDef.width = tempDef.width / scaleFactor;
tempDef.height = tempDef.height / scaleFactor;
tempDef.U = tempDef.U / scaleFactor;
tempDef.V = tempDef.V / scaleFactor;
}
else{
if (tempDef.xAdvance)
tempDef.validDefinition = true;
else
tempDef.validDefinition = false;
tempDef.letteCharUTF16 = it.first;
tempDef.width = 0;
tempDef.height = 0;
tempDef.U = 0;
tempDef.V = 0;
tempDef.offsetX = 0;
tempDef.offsetY = 0;
tempDef.textureID = 0;
tempDef.clipBottom = 0;
_currentPageOrigX += 1;
}
_fontLetterDefinitions[tempDef.letteCharUTF16] = tempDef;
}
unsigned char *data = nullptr;
if (pixelFormat == Texture2D::PixelFormat::AI88)
{
data = _currentPageData + CacheTextureWidth * (int)startY * 2;
}
else
{
data = _currentPageData + CacheTextureWidth * (int)startY;
}
_atlasTextures[_currentPage]->updateWithData(data, 0, startY, CacheTextureWidth,
_currentPageOrigY - startY + _commonLineHeight);
return true;
}
