public void Write(string strText, Color color, float x, float y, float sx, float sy)
{
m_pProgram.Use();
m_pProgram.Uniform(m_iUniformColor, color);
for (int i = 0; i < strText.Length; i++)
{
char c = strText[i];
try
{
if (c == 32)
{
x += (m_iFontSize / 6) * sx;
continue;
}
uint glyphIndex = m_pFace.GetCharIndex(c);
m_pFace.LoadGlyph(glyphIndex, LoadFlags.Render, LoadTarget.Normal);
m_pFace.Glyph.RenderGlyph(RenderMode.VerticalLcd);
m_pTexture = new Texture("", m_pFace.Glyph.Bitmap.BufferData, TextureDataType.UnsignedByte,
TextureFormat.Red, new Size(m_pFace.Glyph.Bitmap.Width, m_pFace.Glyph.Bitmap.Rows),
TextureInternalFormat.R8);
m_pTexture.SetWrapping(TextureWrapping.ClampEdge, TextureWrapping.ClampEdge, TextureWrapping.ClampEdge);
m_pTexture.SetFilters(TextureFilter.Linear, TextureFilter.Linear);
m_pTexture.Rectangle.Y = m_pFace.Glyph.BitmapTop;
m_pTexture.Rectangle.X = m_pFace.Glyph.BitmapLeft;
m_pProgram.Uniform(m_iUniformTex, m_pTexture.glObject);
}
catch (Exception)
{
continue;
}
float x2 = x + m_pTexture.Rectangle.Left * sx;
float y2 = -y - m_pTexture.Rectangle.Top * sy;
float w = m_pTexture.Rectangle.Width * sx;
float h = m_pTexture.Rectangle.Height * sy;
VertexDataBuffer data = new VertexDataBuffer();
data.Vector4(new Vector4(x2, -y2, 0, 0));
data.Vector4(new Vector4(x2 + w, -y2, 1, 0));
data.Vector4(new Vector4(x2, -y2 - h, 0, 1));
data.Vector4(new Vector4(x2 + w, -y2 - h, 1, 1));
m_pVbo.Data(data, BufferUsage.DynamicDraw);
m_pVao.BindElements(m_pVbo);
m_pGame.GameContext.DrawArrays(m_pVao, Primitive.TrianglesStrip, 0, 4);
x += (m_pFace.Glyph.Advance.X >> 6) * sx;
y += (m_pFace.Glyph.Advance.Y >> 6) * sy;
}
}