/// <summary>
/// Sets the blending function to draw with.
/// </summary>
/// <param name="blendingInfo">The infor we should use to update the active state.</param>
public static void SetBlend(BlendingInfo blendingInfo)
{
if (lastBlendingInfo.Equals(blendingInfo))
{
return;
}
FlushCurrentBatch();
if (blendingInfo.IsDisabled)
{
if (!lastBlendingEnabledState.HasValue || lastBlendingEnabledState.Value)
{
GL.Disable(EnableCap.Blend);
}
lastBlendingEnabledState = false;
}
else
{
if (!lastBlendingEnabledState.HasValue || !lastBlendingEnabledState.Value)
{
GL.Enable(EnableCap.Blend);
}
lastBlendingEnabledState = true;
GL.BlendEquationSeparate(blendingInfo.RGBEquation, blendingInfo.AlphaEquation);
GL.BlendFuncSeparate(blendingInfo.Source, blendingInfo.Destination, blendingInfo.SourceAlpha, blendingInfo.DestinationAlpha);
}
lastBlendingInfo = blendingInfo;
}
internal static void Reset(Vector2 size)
{
Trace.Assert(shader_stack.Count == 0);
reset_scheduler.Update();
if (expensive_operations_queue.TryDequeue(out Action action))
{
action.Invoke();
}
lastBoundTexture = null;
lastDepthTest = null;
lastBlendingInfo = new BlendingInfo();
lastBlendingEnabledState = null;
foreach (IVertexBatch b in this_frame_batches)
{
b.ResetCounters();
}
this_frame_batches.Clear();
if (lastActiveBatch != null)
{
this_frame_batches.Add(lastActiveBatch);
}
lastFrameBuffer = 0;
viewport_stack.Clear();
ortho_stack.Clear();
masking_stack.Clear();
scissor_rect_stack.Clear();
scissor_rect_stack.Push(new RectangleI(0, 0, (int)size.X, (int)size.Y));
Viewport = RectangleI.Empty;
Ortho = RectangleF.Empty;
PushViewport(new RectangleI(0, 0, (int)size.X, (int)size.Y));
PushMaskingInfo(new MaskingInfo
{
ScreenSpaceAABB = new RectangleI(0, 0, (int)size.X, (int)size.Y),
MaskingRect = new RectangleF(0, 0, size.X, size.Y),
ToMaskingSpace = Matrix3.Identity,
BlendRange = 1,
AlphaExponent = 1,
}, true);
}
internal static void Reset(Vector2 size)
{
Trace.Assert(shader_stack.Count == 0);
reset_scheduler.Update();
if (expensive_operations_queue.TryDequeue(out Action action))
{
action.Invoke();
}
lastBoundTexture = null;
lastActiveBatch = null;
lastBlendingInfo = new BlendingInfo();
lastBlendingEnabledState = null;
foreach (var b in batch_reset_list)
{
b.ResetCounters();
}
batch_reset_list.Clear();
viewport_stack.Clear();
ortho_stack.Clear();
masking_stack.Clear();
scissor_rect_stack.Clear();
frame_buffer_stack.Clear();
depth_stack.Clear();
scissor_state_stack.Clear();
BindFrameBuffer(DefaultFrameBuffer);
scissor_rect_stack.Push(new RectangleI(0, 0, (int)size.X, (int)size.Y));
Viewport = RectangleI.Empty;
Ortho = RectangleF.Empty;
PushScissorState(true);
PushViewport(new RectangleI(0, 0, (int)size.X, (int)size.Y));
PushMaskingInfo(new MaskingInfo
{
ScreenSpaceAABB = new RectangleI(0, 0, (int)size.X, (int)size.Y),
MaskingRect = new RectangleF(0, 0, size.X, size.Y),
ToMaskingSpace = Matrix3.Identity,
BlendRange = 1,
AlphaExponent = 1,
}, true);
PushDepthInfo(DepthInfo.Default);
Clear(ClearInfo.Default);
}
internal static void Reset(Vector2 size)
{
Debug.Assert(shaderStack.Count == 0);
resetScheduler.Update();
lastBoundTexture = null;
lastDepthTest = null;
lastBlendingInfo = new BlendingInfo();
lastBlendingEnabledState = null;
foreach (IVertexBatch b in thisFrameBatches)
{
b.ResetCounters();
}
thisFrameBatches.Clear();
if (lastActiveBatch != null)
{
thisFrameBatches.Add(lastActiveBatch);
}
lastFrameBuffer = 0;
viewportStack.Clear();
orthoStack.Clear();
maskingStack.Clear();
scissorRectStack.Clear();
scissorRectStack.Push(new Rectangle(0, 0, (int)size.X, (int)size.Y));
Viewport = Rectangle.Empty;
Ortho = Rectangle.Empty;
PushViewport(new Rectangle(0, 0, (int)size.X, (int)size.Y));
PushMaskingInfo(new MaskingInfo
{
ScreenSpaceAABB = new Rectangle(0, 0, (int)size.X, (int)size.Y),
MaskingRect = new RectangleF(0, 0, size.X, size.Y),
ToMaskingSpace = Matrix3.Identity,
BlendRange = 1,
AlphaExponent = 1,
}, true);
}
