bool DxFont::Initialize( const std::wstring & FontName, float FontSize, WORD FontStyle, bool AntiAliased)
{
assert(!Initialized);
ULONG_PTR token = 0;
Gdiplus::GdiplusStartupInput startupInput( 0, TRUE, TRUE );
Gdiplus::GdiplusStartupOutput startupOutput;
Gdiplus::GdiplusStartup( &token, &startupInput, &startupOutput );
{
Gdiplus::Font font( FontName.c_str( ), FontSize, FontStyle, Gdiplus::UnitPixel );
Gdiplus::TextRenderingHint hint = AntiAliased ? Gdiplus::TextRenderingHintAntiAlias : Gdiplus::TextRenderingHintSystemDefault;
int tempSize = static_cast<int>( FontSize * 2 );
Gdiplus::Bitmap charBitmap( tempSize, tempSize, PixelFormat32bppARGB );
Gdiplus::Graphics charGraphics( &charBitmap );
charGraphics.SetPageUnit( Gdiplus::UnitPixel );
charGraphics.SetTextRenderingHint( hint );
MeasureChars(font, charGraphics );
Gdiplus::Bitmap fontSheetBitmap( TexWidth, TexHeight, PixelFormat32bppARGB );
Gdiplus::Graphics fontSheetGraphics( &fontSheetBitmap );
fontSheetGraphics.SetCompositingMode( Gdiplus::CompositingModeSourceCopy );
fontSheetGraphics.Clear( Gdiplus::Color( 0, 0, 0, 0 ) );
BuildFontSheetBitmap( font, charGraphics, charBitmap, fontSheetGraphics );
if( !BuildFontSheetTexture( fontSheetBitmap ) )
{
Gdiplus::GdiplusShutdown( token );
return false;
}
}
Gdiplus::GdiplusShutdown( token );
Initialized = true;
return true;
}
void SpriteFont::Initialize(const wchar *fontName, float fontSize, UINT fontStyle, bool antiAliased, ID3D11Device *device) {
m_size = fontSize;
Gdiplus::TextRenderingHint hint = antiAliased ? Gdiplus::TextRenderingHintAntiAliasGridFit : Gdiplus::TextRenderingHintSingleBitPerPixelGridFit;
// Init GDI+
ULONG_PTR token = NULL;
Gdiplus::GdiplusStartupInput startupInput(NULL, true, true);
Gdiplus::GdiplusStartupOutput startupOutput;
HR(GdiplusStartup(&token, &startupInput, &startupOutput));
// Create the font
Gdiplus::Font font(fontName, fontSize, fontStyle, Gdiplus::UnitPixel, NULL);
// Check for error during construction
HR(font.GetLastStatus());
// Create a temporary Bitmap and Graphics for figuring out the rough size required
// for drawing all of the characters
int size = static_cast<int>(fontSize * NumChars * 2) + 1;
Gdiplus::Bitmap sizeBitmap(size, size, PixelFormat32bppARGB);
HR(sizeBitmap.GetLastStatus());
Gdiplus::Graphics sizeGraphics(&sizeBitmap);
HR(sizeGraphics.GetLastStatus());
HR(sizeGraphics.SetTextRenderingHint(hint));
m_charHeight = font.GetHeight(&sizeGraphics) * 1.5f;
wchar allChars[NumChars + 1];
for (wchar i = 0; i < NumChars; ++i) {
allChars[i] = i + StartChar;
}
allChars[NumChars] = 0;
Gdiplus::RectF sizeRect;
HR(sizeGraphics.MeasureString(allChars, NumChars, &font, Gdiplus::PointF(0, 0), &sizeRect));
int numRows = static_cast<int>(sizeRect.Width / TexWidth) + 1;
int texHeight = static_cast<int>(numRows * m_charHeight) + 1;
// Create a temporary Bitmap and Graphics for drawing the characters one by one
int tempSize = static_cast<int>(fontSize * 2);
Gdiplus::Bitmap drawBitmap(tempSize, tempSize, PixelFormat32bppARGB);
HR(drawBitmap.GetLastStatus());
Gdiplus::Graphics drawGraphics(&drawBitmap);
HR(drawGraphics.GetLastStatus());
HR(drawGraphics.SetTextRenderingHint(hint));
// Create a temporary Bitmap + Graphics for creating a full character set
Gdiplus::Bitmap textBitmap(TexWidth, texHeight, PixelFormat32bppARGB);
HR(textBitmap.GetLastStatus());
Gdiplus::Graphics textGraphics(&textBitmap);
HR(textGraphics.GetLastStatus());
HR(textGraphics.Clear(Gdiplus::Color(0, 255, 255, 255)));
HR(textGraphics.SetCompositingMode(Gdiplus::CompositingModeSourceCopy));
// Solid brush for text rendering
Gdiplus::SolidBrush brush(Gdiplus::Color(255, 255, 255, 255));
HR(brush.GetLastStatus());
// Draw all of the characters, and copy them to the full character set
wchar charString [2];
charString[1] = 0;
int currentX = 0;
int currentY = 0;
for (uint64 i = 0; i < NumChars; ++i) {
charString[0] = static_cast<wchar>(i + StartChar);
// Draw the character
HR(drawGraphics.Clear(Gdiplus::Color(0, 255, 255, 255)));
HR(drawGraphics.DrawString(charString, 1, &font, Gdiplus::PointF(0, 0), &brush));
// Figure out the amount of blank space before the character
int minX = 0;
for (int x = 0; x < tempSize; ++x) {
for (int y = 0; y < tempSize; ++y) {
Gdiplus::Color color;
HR(drawBitmap.GetPixel(x, y, &color));
if (color.GetAlpha() > 0) {
minX = x;
x = tempSize;
break;
}
}
}
// Figure out the amount of blank space after the character
int maxX = tempSize - 1;
for (int x = tempSize - 1; x >= 0; --x) {
for (int y = 0; y < tempSize; ++y) {
Gdiplus::Color color;
HR(drawBitmap.GetPixel(x, y, &color));
if (color.GetAlpha() > 0) {
maxX = x;
x = -1;
break;
}
}
}
int charWidth = maxX - minX + 1;
// Figure out if we need to move to the next row
if (currentX + charWidth >= TexWidth) {
currentX = 0;
currentY += static_cast<int>(m_charHeight) + 1;
}
// Fill out the structure describing the character position
m_charDescs[i].X = static_cast<float>(currentX);
m_charDescs[i].Y = static_cast<float>(currentY);
m_charDescs[i].Width = static_cast<float>(charWidth);
m_charDescs[i].Height = static_cast<float>(m_charHeight);
// Copy the character over
int height = static_cast<int>(m_charHeight + 1);
HR(textGraphics.DrawImage(&drawBitmap, currentX, currentY, minX, 0, charWidth, height, Gdiplus::UnitPixel));
currentX += charWidth + 1;
}
// Figure out the width of a space character
charString[0] = ' ';
charString[1] = 0;
HR(drawGraphics.MeasureString(charString, 1, &font, Gdiplus::PointF(0, 0), &sizeRect));
m_spaceWidth = sizeRect.Width;
// Lock the bitmap for direct memory access
Gdiplus::BitmapData bmData;
HR(textBitmap.LockBits(&Gdiplus::Rect(0, 0, TexWidth, texHeight), Gdiplus::ImageLockModeRead, PixelFormat32bppARGB, &bmData));
// Create a D3D texture, initalized with the bitmap data
D3D11_TEXTURE2D_DESC texDesc;
texDesc.Width = TexWidth;
texDesc.Height = texHeight;
texDesc.MipLevels = 1;
texDesc.ArraySize = 1;
texDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
texDesc.SampleDesc.Count = 1;
texDesc.SampleDesc.Quality = 0;
texDesc.Usage = D3D11_USAGE_IMMUTABLE;
texDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
texDesc.CPUAccessFlags = 0;
texDesc.MiscFlags = 0;
D3D11_SUBRESOURCE_DATA data;
data.pSysMem = bmData.Scan0;
data.SysMemPitch = TexWidth * 4;
data.SysMemSlicePitch = 0;
HR(device->CreateTexture2D(&texDesc, &data, &m_texture));
HR(textBitmap.UnlockBits(&bmData));
// Create the shader resource view
D3D11_SHADER_RESOURCE_VIEW_DESC srDesc;
srDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
srDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
srDesc.Texture2D.MipLevels = 1;
srDesc.Texture2D.MostDetailedMip = 0;
HR(device->CreateShaderResourceView(m_texture, &srDesc, &m_SRV));
// Shutdown GDI+
//Gdiplus::GdiplusShutdown(token);
// TODO: Figure out why this throws exceptions
}
