private void uploadBitmapToOpenGl()
{
_texture = createTexture();
IBitmap bitmap = _bitmapPool.Acquire(_draw.BitmapWidth, _draw.BitmapHeight);
try
{
IBitmapTextDraw textDraw = bitmap.GetTextDraw();
using (var context = textDraw.CreateContext())
{
textDraw.DrawText(_draw.Text, _draw.Config, _draw.TextSize, _draw.BaseSize, _draw.MaxWidth, (int)_draw.HeightF, 0f);
drawCaret(_draw.OriginalText, _draw.TextSize, _draw.HeightF, _draw.BaseSize, textDraw, _draw.Config, _draw.MaxWidth);
}
// Upload the Bitmap to OpenGL.
// Do this only when text changes.
bitmap.LoadTexture(_texture);
}
catch (InvalidOperationException e)
{
Debug.WriteLine(e.ToString());
throw;
}
finally
{
releaseBitmap(bitmap);
}
}
private void drawToBitmap()
{
string originalText = _text ?? "";
string text = _text;
var config = AGSTextConfig.ScaleConfig(_config, TextResolutionFactorX);
int maxWidth = _maxWidth == int.MaxValue ? _maxWidth : _maxWidth * TextResolutionFactorX;
SizeF originalTextSize = config.Font.MeasureString(text, _cropText ? int.MaxValue : maxWidth);
SizeF textSize = originalTextSize;
if (_cropText && textSize.Width > maxWidth)
{
textSize = cropText(maxWidth, config, ref text);
}
float widthOffset = Math.Max(config.OutlineWidth, Math.Abs(config.ShadowOffsetX));
float heightOffset = Math.Max(config.OutlineWidth, Math.Abs(config.ShadowOffsetY));
float widthF = textSize.Width + widthOffset + config.PaddingLeft + config.PaddingRight;
float heightF = textSize.Height + heightOffset + config.PaddingTop + config.PaddingBottom;
SizeF baseSize = new SizeF(_baseSize.Width == EmptySize.Width ? widthF : _baseSize.Width * TextResolutionFactorX,
_baseSize.Height == EmptySize.Height ? heightF : _baseSize.Height * TextResolutionFactorY);
Width = (widthF / GLText.TextResolutionFactorX);
Height = (heightF / GLText.TextResolutionFactorY);
int bitmapWidth = MathUtils.GetNextPowerOf2(Math.Max((int)widthF + 1, (int)baseSize.Width + 1));
int bitmapHeight = MathUtils.GetNextPowerOf2(Math.Max((int)heightF + 1, (int)baseSize.Height + 1));
IBitmap bitmap = _bitmap;
if (bitmap == null || bitmap.Width != bitmapWidth || bitmap.Height != bitmapHeight)
{
if (bitmap != null)
{
_bitmapPool.Release(bitmap);
}
_bitmap = _bitmapPool.Acquire(bitmapWidth, bitmapHeight);
bitmap = _bitmap;
}
IBitmapTextDraw textDraw = bitmap.GetTextDraw();
using (var context = textDraw.CreateContext())
{
textDraw.DrawText(text, config, textSize, baseSize, maxWidth, (int)heightF, 0f);
drawCaret(originalText, textSize, heightF, baseSize, textDraw, config, maxWidth);
}
_renderChanged = true;
}