public void BeginDraw(GLControl control, int windowSizeY)
{
#if FAMISTUDIO_LINUX
var lineWidths = new float[2];
GL.GetFloat(GetPName.LineWidthRange, lineWidths);
supportsLineWidth = lineWidths[1] > 1.0f;
#endif
this.windowSizeY = windowSizeY;
this.control = control;
var controlRect = FlipRectangleY(new Rectangle(control.Left, control.Top, control.Width, control.Height));
GL.Viewport(controlRect.Left, controlRect.Top, controlRect.Width, controlRect.Height);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
GL.Ortho(0, control.Width, control.Height, 0, -1, 1);
GL.Disable(EnableCap.CullFace);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
GL.Enable(EnableCap.Blend);
transform = new Vector4(1, 1, 0, 0);
scissor = controlRect;
GL.Enable(EnableCap.ScissorTest);
GL.Scissor(scissor.Left, scissor.Top, scissor.Width, scissor.Height);
}
private bool IsPointInControl(GLControl ctrl, int x, int y, out int ctrlX, out int ctrlY)
{
ctrlX = x - ctrl.Left;
ctrlY = y - ctrl.Top;
if (ctrlX >= 0 &&
ctrlY >= 0 &&
ctrlX < ctrl.Width &&
ctrlY < ctrl.Height)
{
return(true);
}
return(false);
}
public void Tick(float timeDelta)
{
if (transitionTimer > 0.0f)
{
var prevTimer = transitionTimer;
transitionTimer = Math.Max(0.0f, transitionTimer - timeDelta * 6);
if (prevTimer > 0.5f && transitionTimer <= 0.5f)
{
activeControl = transitionControl;
transitionControl = null;
UpdateLayout(true);
}
MarkDirty();
}
}
// Some OpenGL implementation applies sRGB to the alpha channel which is super
// wrong. We can detect that assuming the gradient we draw should be at 50%
// opacity in the middle.
bool DetectBadOpenGLAlpha(GLControl ctrl, RenderGraphics g, byte[] videoImage)
{
var blackGradientBrush = g.CreateVerticalGradientBrush(0, 256, Color.FromArgb(255, 0, 0, 0), Color.FromArgb(0, 0, 0, 0));
g.BeginDraw(ctrl, videoResY);
g.Clear(Color.FromArgb(0, 0, 0, 0));
g.FillRectangle(0, 0, videoResX, 256, blackGradientBrush);
g.EndDraw();
g.GetBitmap(videoImage);
blackGradientBrush.Dispose();
float midGradientAlpha = videoImage[128 * videoResX * 4 + 3] / 255.0f;
float diff = Math.Abs(midGradientAlpha - 0.5f);
return(diff > 0.05f);
}
public void SetActiveControl(GLControl ctrl, bool animate = true)
{
if (activeControl != ctrl)
{
Debug.Assert(transitionTimer == 0.0f && transitionControl == null);
if (animate)
{
transitionControl = ctrl;
transitionTimer = 1.0f;
}
else
{
activeControl = ctrl;
transitionTimer = 0.0f;
}
}
}
private void RenderControl(GLControl ctrl)
{
var fullscreenViewport = ctrl.WantsFullScreenViewport;
if (fullscreenViewport)
{
gfx.BeginDrawControl(new System.Drawing.Rectangle(0, 0, width, height), height);
}
else
{
gfx.BeginDrawControl(new System.Drawing.Rectangle(ctrl.Left, ctrl.Top, ctrl.Width, ctrl.Height), height);
}
gfx.SetLineBias(2);
if (fullscreenViewport)
{
gfx.Transform.PushTranslation(ctrl.Left, ctrl.Top);
}
var t0 = DateTime.Now;
ctrl.Render(gfx);
var t1 = DateTime.Now;
if (ShowRenderingTimes)
{
var cmd = gfx.CreateCommandList();
cmd.DrawText($"{(t1 - t0).TotalMilliseconds}", res.FontVeryLargeBold, 10, 10, gfx.GetSolidBrush(System.Drawing.Color.SpringGreen));
gfx.DrawCommandList(cmd);
}
if (fullscreenViewport)
{
gfx.Transform.PopTransform();
}
gfx.EndDrawControl();
ctrl.ClearDirtyFlag();
}
public void BeginDraw(GLControl control, int windowSizeY)
{
this.windowSizeY = windowSizeY;
this.control = control;
var controlRect = FlipRectangleY(new Rectangle(control.Left, control.Top, control.Width, control.Height));
GL.Viewport(controlRect.Left, controlRect.Top, controlRect.Width, controlRect.Height);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
GL.Ortho(0, control.Width, control.Height, 0, -1, 1);
GL.Disable(EnableCap.CullFace);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
GL.Enable(EnableCap.Blend);
translation = new Point(0, 0);
scissor = controlRect;
GL.Enable(EnableCap.ScissorTest);
GL.Scissor(scissor.Left, scissor.Top, scissor.Width, scissor.Height);
}
public FamiStudioControls(FamiStudioForm parent)
{
toolbar = new Toolbar();
sequencer = new Sequencer();
pianoRoll = new PianoRoll();
projectExplorer = new ProjectExplorer();
quickAccessBar = new QuickAccessBar();
mobilePiano = new MobilePiano();
controls[0] = sequencer;
controls[1] = pianoRoll;
controls[2] = projectExplorer;
controls[3] = quickAccessBar;
controls[4] = toolbar;
controls[5] = mobilePiano;
activeControl = sequencer;
foreach (var ctrl in controls)
{
ctrl.ParentForm = parent;
}
}
public virtual void EndDraw()
{
control = null;
}
public DeferredEvent(DeferredEventType t, GLControl c, EventArgs e)
{
type = t;
ctrl = c;
args = e;
}
public void EndDraw()
{
control = null;
}