public void RenderFullscreenQuad(RShader shader)
{
RViewport viewport = REngine.Instance._viewport;
quadVerts[0].Position = new Vector2(-1, -1);
quadVerts[0].TexCoord = new Vector2(0, 0);
quadVerts[1].Position = new Vector2(1, -1);
quadVerts[1].TexCoord = new Vector2(1, 0);
quadVerts[2].Position = new Vector2(1, 1);
quadVerts[2].TexCoord = new Vector2(1, 1);
quadVerts[3].Position = new Vector2(-1, 1);
quadVerts[3].TexCoord = new Vector2(0, 1);
vertexQuad2D.SetData <RVertexData2D>(quadVerts);
shader.Bind();
GL.Disable(EnableCap.DepthTest);
GL.Disable(EnableCap.CullFace);
vertexQuad2D.Bind();
vertexQuad2D.BindVertexArray();
indexQuad2D.Bind();
vertexQuad2D.VertexDeclaration.Apply(shader, IntPtr.Zero);
GL.DrawElements(PrimitiveType.Triangles, indexQuad2D.IndexCount, DrawElementsType.UnsignedShort, IntPtr.Zero);
REngine.CheckGLError();
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.DstAlpha);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
indexQuad2D.Unbind();
vertexQuad2D.UnbindVertexArray();
vertexQuad2D.Unbind();
shader.Unbind();
}
internal void Render(ref RShader shader, ref RVertexBuffer vertexBuffer, ref RIndexBuffer indexBuffer, string text, Vector2 location, RColor color, Matrix matrix)
{
Vector2 pen = location;
pen.Y += MeasureString(text).Height;
float x = pen.X;
List <RVertexData2D> quads = new List <RVertexData2D>();
foreach (char c in text)
{
if (c == '\r')
{
continue;
}
if (c == '\n')
{
pen.X = x;
pen.Y += LineHeight;
continue;
}
if (c == ' ')
{
pen.X += SpaceWidth;
continue;
}
if (c == '\t')
{
pen.X += (SpaceWidth * 3);
continue;
}
RFontGlyph glyph = GetGlyphForChar(c);
var dest = new Reactor.Math.Rectangle();
dest.X = (int)(pen.X + glyph.Offset.X);
dest.Y = (int)pen.Y - ((int)glyph.Offset.Y);
dest.Width = glyph.Bounds.Width;
dest.Height = glyph.Bounds.Height;
vertexBuffer.SetData <RVertexData2D>(AddQuads(dest, glyph.UVBounds));
vertexBuffer.Bind();
vertexBuffer.BindVertexArray();
indexBuffer.Bind();
vertexBuffer.VertexDeclaration.Apply(shader, IntPtr.Zero);
GL.DrawElements(PrimitiveType.Triangles, indexBuffer.IndexCount, DrawElementsType.UnsignedShort, IntPtr.Zero);
REngine.CheckGLError();
indexBuffer.Unbind();
vertexBuffer.Unbind();
vertexBuffer.UnbindVertexArray();
pen.X += glyph.Advance;
}
}