public virtual void OnPreDraw()
{
if (Settings.EnabledGameObjects == RenderRequestGameObject.None)
{
return;
}
var gridView = GridView; // The value might have changed
if (Settings.EnabledGameObjects.HasFlag(RenderRequestGameObject.TileLayers))
{
// Start asynchronous copying of tile types
int tileCount = gridView.Size.Size();
for (int i = 0; i < m_toRender.Length; i++)
{
// Store data directly to device memory
m_tileTypesBuffer.Bind();
IntPtr bufferPtr = GL.MapBuffer(m_tileTypesBuffer.Target, BufferAccess.WriteOnly);
m_toRender[i].GetTileTypesAt(gridView, bufferPtr, tileCount, i * tileCount);
GL.UnmapBuffer(m_tileTypesBuffer.Target);
// Start async copying to the texture
m_tileTypesBuffer.Bind(BufferTarget.PixelUnpackBuffer);
TileTypesTexure.Update1D(tileCount, dataType: PixelType.UnsignedShort, offset: i * tileCount, byteDataOffset: i * tileCount * sizeof(ushort));
}
}
}
public override void Draw(RendererBase <ToyWorld> renderer, ToyWorld world)
{
if (Settings.CopyMode == RenderRequestImageCopyingMode.None)
{
return;
}
// Gather data to host mem
Owner.FrontFbo.Bind();
switch (Settings.CopyMode)
{
case RenderRequestImageCopyingMode.DefaultFbo:
GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, 0);
GL.BlitFramebuffer(
0, 0, Owner.FrontFbo.Size.X, Owner.FrontFbo.Size.Y,
0, 0, renderer.Width, renderer.Height,
ClearBufferMask.ColorBufferBit,
BlitFramebufferFilter.Nearest);
break;
case RenderRequestImageCopyingMode.OpenglPbo:
Pbo.Bind();
GL.ReadBuffer(ReadBufferMode.ColorAttachment0); // Works for fbo bound to Framebuffer (not DrawFramebuffer)
//Owner.FrontFbo[FramebufferAttachment.ColorAttachment0].Copy2D(PixelType.UnsignedByte); // This is half as fast as ReadPixels for color data
GL.ReadPixels(0, 0, Owner.Resolution.Width, Owner.Resolution.Height, PixelFormat.Bgra, PixelType.UnsignedByte, default(IntPtr));
if (Settings.CopyDepth)
{
DepthPbo.Bind();
Owner.FrontFbo[FramebufferAttachment.DepthAttachment].Copy2D(PixelType.Float); // This is twice as fast as ReadPixels for depth texture
//GL.ReadPixels(0, 0, Owner.Resolution.Width, Owner.Resolution.Height, PixelFormat.DepthComponent, PixelType.UnsignedInt, default(IntPtr));
}
break;
case RenderRequestImageCopyingMode.Cpu:
GL.BindBuffer(BufferTarget.PixelPackBuffer, 0);
GL.ReadBuffer(ReadBufferMode.ColorAttachment0); // Works for fbo bound to Framebuffer (not DrawFramebuffer)
GL.ReadPixels(0, 0, Owner.Resolution.Width, Owner.Resolution.Height, PixelFormat.Bgra, PixelType.UnsignedByte, RenderedScene);
if (Settings.CopyDepth)
{
Owner.FrontFbo[FramebufferAttachment.DepthAttachment].Copy2D(PixelType.Float, RenderedSceneDepth);
}
break;
}
}