/// <summary>
/// Binds the renderbuffer to the specfied framebuffer.
/// </summary>
/// <param name="frameBuffer">The framebuffer this renderbuffer should be bound to.</param>
internal void Bind(int frameBuffer)
{
if (info.ID != -1)
{
return;
}
if (!renderBufferCache.ContainsKey(Format))
{
renderBufferCache[Format] = new ConcurrentStack <RenderBufferInfo>();
}
// Make sure we have renderbuffers available
if (renderBufferCache[Format].Count == 0)
{
int newBuffer = GL.GenRenderbuffer();
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, newBuffer);
GL.RenderbufferStorage(RenderbufferTarget.Renderbuffer, Format, Game.Window.Width, Game.Window.Height);
renderBufferCache[Format].Push(new RenderBufferInfo()
{
ID = newBuffer, LastFramebuffer = -1
});
}
// Get a renderbuffer from the cache
renderBufferCache[Format].TryPop(out info);
// For performance reasons, we only need to re-bind the renderbuffer to
// the framebuffer if it is not already attached to it
if (info.LastFramebuffer != frameBuffer)
{
// Make sure the framebuffer we want to attach to is bound
int lastFrameBuffer = GLWrapper.BindFrameBuffer(frameBuffer);
switch (Format)
{
case RenderbufferInternalFormat.DepthComponent16:
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferSlot.DepthAttachment, RenderbufferTarget.Renderbuffer, info.ID);
break;
case RenderbufferInternalFormat.Rgb565:
case RenderbufferInternalFormat.Rgb5A1:
case RenderbufferInternalFormat.Rgba4:
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferSlot.ColorAttachment0, RenderbufferTarget.Renderbuffer, info.ID);
break;
case RenderbufferInternalFormat.StencilIndex8:
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferSlot.DepthAttachment, RenderbufferTarget.Renderbuffer, info.ID);
break;
}
GLWrapper.BindFrameBuffer(lastFrameBuffer);
}
info.LastFramebuffer = frameBuffer;
}
/// <summary>
/// Unbinds the framebuffer.
/// </summary>
public void Unbind()
{
if (!IsBound)
{
return;
}
GLWrapper.BindFrameBuffer(lastFramebuffer);
attachedRenderBuffers.ForEach(r => r.Unbind());
lastFramebuffer = -1;
}
/// <summary>
/// Unbinds the framebuffer.
/// </summary>
public void Unbind()
{
if (!IsBound)
{
return;
}
GLWrapper.BindFrameBuffer(lastFramebuffer);
foreach (var r in attachedRenderBuffers)
{
r.Unbind();
}
lastFramebuffer = -1;
}
/// <summary>
/// Binds the framebuffer.
/// <para>Does not clear the buffer or reset the viewport/ortho.</para>
/// </summary>
internal void Bind()
{
if (frameBuffer == -1)
{
return;
}
if (lastFramebuffer == frameBuffer)
{
return;
}
// Bind framebuffer and all its renderbuffers
lastFramebuffer = GLWrapper.BindFrameBuffer(frameBuffer);
attachedRenderBuffers.ForEach(r => r.Bind(frameBuffer));
}
private void initializeLevel(int level, int width, int height)
{
GL.TexImage2D(TextureTarget2d.Texture2D, level, TextureComponentCount.Rgba, width, height, 0, PixelFormat.Rgba, PixelType.UnsignedByte, IntPtr.Zero);
if (clearFBO < 0)
{
clearFBO = GL.GenFramebuffer();
}
int lastFramebuffer = GLWrapper.BindFrameBuffer(clearFBO);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferSlot.ColorAttachment0, TextureTarget.Texture2D, TextureId, 0);
GL.ClearColor(new Color4(255, 255, 255, 0));
GL.Clear(ClearBufferMask.ColorBufferBit);
GL.ClearColor(new Color4(0, 0, 0, 0));
GLWrapper.BindFrameBuffer(lastFramebuffer);
}
/// <summary>
/// Binds the framebuffer.
/// <para>Does not clear the buffer or reset the viewport/ortho.</para>
/// </summary>
public void Bind()
{
if (frameBuffer == -1)
{
return;
}
if (lastFramebuffer == frameBuffer)
{
return;
}
// Bind framebuffer and all its renderbuffers
lastFramebuffer = GLWrapper.BindFrameBuffer(frameBuffer);
foreach (var r in attachedRenderBuffers)
{
r.Size = Size;
r.Bind(frameBuffer);
}
}
/// <summary>
/// Binds the framebuffer.
/// <para>Does not clear the buffer or reset the viewport/ortho.</para>
/// </summary>
public void Bind()
{
if (frameBuffer == -1)
{
return;
}
if (lastFramebuffer == frameBuffer)
{
return;
}
// Bind framebuffer and all its renderbuffers
lastFramebuffer = GLWrapper.BindFrameBuffer(frameBuffer);
attachedRenderBuffers.ForEach(r =>
{
r.Size = Size;
r.Bind(frameBuffer);
});
}
private void getImageGL(Action <Image <Rgba32> > callback)
{
host.DrawThread.Scheduler.Add(() =>
{
var image = new Image <Rgba32>((int)DrawWidth, (int)DrawHeight);
var sharedData = (BufferedDrawNodeSharedData)typeof(BufferedContainer <Drawable>).GetField("sharedData", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(this);
var fbo = new FrameBuffer();
fbo.Bind();
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget2d.Texture2D, sharedData.MainBuffer.Texture.TextureId, 0);
bool success = image.TryGetSinglePixelSpan(out var span);
Debug.Assert(success);
GL.ReadPixels(0, 0, (int)DrawWidth, (int)DrawHeight, PixelFormat.Rgba, PixelType.UnsignedByte, ref MemoryMarshal.GetReference(span));
fbo.Dispose();
GLWrapper.BindFrameBuffer(GLWrapper.DefaultFrameBuffer);
callback(image);
});
}
/// <summary>
/// Binds the renderbuffer to the specfied framebuffer.
/// </summary>
/// <param name="frameBuffer">The framebuffer this renderbuffer should be bound to.</param>
internal void Bind(int frameBuffer)
{
// Check if we're already bound
if (info != null)
{
return;
}
if (!renderBufferCache.ContainsKey(Format))
{
renderBufferCache[Format] = new Stack <RenderBufferInfo>();
}
// Make sure we have renderbuffers available
if (renderBufferCache[Format].Count == 0)
{
renderBufferCache[Format].Push(new RenderBufferInfo()
{
RenderBufferID = GL.GenRenderbuffer(), FrameBufferID = -1
});
}
// Get a renderbuffer from the cache
info = renderBufferCache[Format].Pop();
// Check if we need to update the size
if (info.Size != Size)
{
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, info.RenderBufferID);
GL.RenderbufferStorage(RenderbufferTarget.Renderbuffer, Format, (int)Math.Ceiling(Size.X), (int)Math.Ceiling(Size.Y));
info.Size = Size;
}
// For performance reasons, we only need to re-bind the renderbuffer to
// the framebuffer if it is not already attached to it
if (info.FrameBufferID != frameBuffer)
{
// Make sure the framebuffer we want to attach to is bound
int lastFrameBuffer = GLWrapper.BindFrameBuffer(frameBuffer);
switch (Format)
{
case RenderbufferInternalFormat.DepthComponent16:
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferSlot.DepthAttachment, RenderbufferTarget.Renderbuffer, info.RenderBufferID);
break;
case RenderbufferInternalFormat.Rgb565:
case RenderbufferInternalFormat.Rgb5A1:
case RenderbufferInternalFormat.Rgba4:
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferSlot.ColorAttachment0, RenderbufferTarget.Renderbuffer, info.RenderBufferID);
break;
case RenderbufferInternalFormat.StencilIndex8:
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferSlot.DepthAttachment, RenderbufferTarget.Renderbuffer, info.RenderBufferID);
break;
}
GLWrapper.BindFrameBuffer(lastFrameBuffer);
}
info.FrameBufferID = frameBuffer;
}
