static unsafe void BitBltAlpha(FontBitmap chara, IntPtr dest32bppBitmap, Size destBitmapSize, Point dest)
{
int sz = chara.Bitmap.Length;
if (sz == 0)
{
return;
}
int dx = dest.X + chara.OffsetBox.Width;
int dy = dest.Y + chara.OffsetBox.Height;
int dp = destBitmapSize.Width; // dst pitch (px)
int sx = Math.Max(0, -dx);
int sy = Math.Max(0, -dy);
int ex = Math.Min(chara.BlackBox.Width, destBitmapSize.Width - dx);
int ey = Math.Min(chara.BlackBox.Height, destBitmapSize.Height - dy);
int sw = chara.BlackBox.Width;
fixed(byte *srcBitmap = &chara.Bitmap[0])
{
if (chara.Bpp == 8)
{
BitBltAlpha8((uint *)dest32bppBitmap, dx, dy, dp, srcBitmap, sx, sy, ex, ey, sw);
}
else if (chara.Bpp == 1)
{
BitBltAlpha1((uint *)dest32bppBitmap, dx, dy, dp, srcBitmap, sx, sy, ex, ey, sw);
}
else
{
throw new NotImplementedException();
}
}
}
static unsafe void BitBltAlpha(FontBitmap chara, IntPtr dest32bppBitmap, Size destBitmapSize, Point dest)
{
int sz = chara.Bitmap.Length;
if (sz == 0) return;
int dx = dest.X + chara.OffsetBox.Width;
int dy = dest.Y + chara.OffsetBox.Height;
int dp = destBitmapSize.Width; // dst pitch (px)
int sx = Math.Max(0, -dx);
int sy = Math.Max(0, -dy);
int ex = Math.Min(chara.BlackBox.Width, destBitmapSize.Width - dx);
int ey = Math.Min(chara.BlackBox.Height, destBitmapSize.Height - dy);
int sw = chara.BlackBox.Width;
fixed (byte* srcBitmap = &chara.Bitmap[0])
{
if (chara.Bpp == 8) BitBltAlpha8((uint*)dest32bppBitmap, dx, dy, dp, srcBitmap, sx, sy, ex, ey, sw);
else if (chara.Bpp == 1) BitBltAlpha1((uint*)dest32bppBitmap, dx, dy, dp, srcBitmap, sx, sy, ex, ey, sw);
else throw new NotImplementedException();
}
}
/// <summary>
/// 1文字分のグリフを得る
/// </summary>
/// <param name="c">文字</param>
/// <returns>bitmap</returns>
public FontBitmap GetCharacterBitmap(char c)
{
uint flag = Antialiased ? Win32.GGO_GRAY8_BITMAP : Win32.GGO_BITMAP;
Win32.GLYPHMETRICS metrics = new Win32.GLYPHMETRICS();
Win32.MAT2 mat2 = Win32.MAT2.Identity;
int bufSize = Win32.GetGlyphOutline(hdc, c, flag, ref metrics, 0, null, ref mat2);
byte[] buf = new byte[bufSize];
Win32.GetGlyphOutline(hdc, c, flag, ref metrics, (uint)bufSize, buf, ref mat2);
FontBitmap bmp = new FontBitmap();
bmp.Char = c;
bmp.Bpp = (short)(Antialiased ? 0x8 : 0x1);
bmp.Bitmap = buf;
bmp.BlackBox = new Size(metrics.gmBlackBoxX, metrics.gmBlackBoxY);
bmp.OffsetBox = new Size(metrics.gmptGlyphOriginX, Ascent - metrics.gmptGlyphOriginY);
bmp.CellInc = new Size(metrics.gmCellIncX, metrics.gmCellIncY);
return(bmp);
}
/// <summary>
/// 1文字分のグリフを得る
/// </summary>
/// <param name="c">文字</param>
/// <returns>bitmap</returns>
public FontBitmap GetCharacterBitmap(char c)
{
uint flag = Antialiased ? Win32.GGO_GRAY8_BITMAP : Win32.GGO_BITMAP;
Win32.GLYPHMETRICS metrics = new Win32.GLYPHMETRICS();
Win32.MAT2 mat2 = Win32.MAT2.Identity;
int bufSize = Win32.GetGlyphOutline(hdc, c, flag, ref metrics, 0, null, ref mat2);
byte[] buf = new byte[bufSize];
Win32.GetGlyphOutline(hdc, c, flag, ref metrics, (uint)bufSize, buf, ref mat2);
FontBitmap bmp = new FontBitmap();
bmp.Char = c;
bmp.Bpp = (short)(Antialiased ? 0x8 : 0x1);
bmp.Bitmap = buf;
bmp.BlackBox = new Size(metrics.gmBlackBoxX, metrics.gmBlackBoxY);
bmp.OffsetBox = new Size(metrics.gmptGlyphOriginX, Ascent - metrics.gmptGlyphOriginY);
bmp.CellInc = new Size(metrics.gmCellIncX, metrics.gmCellIncY);
return bmp;
}