public void RestoreRenderTarget()
{
Renderer.Flush();
uint prevFramebuffer = framebufferStack.Pop();
PlatformRenderer.BindFramebuffer(prevFramebuffer);
}
public void SetAsRenderTarget()
{
Renderer.Flush();
GetHandle();
uint currentFramebuffer = (uint)PlatformRenderer.CurrentFramebuffer;
PlatformRenderer.BindFramebuffer(framebuffer);
framebufferStack.Push(currentFramebuffer);
}
private void CreateTexture()
{
if (IsDisposed)
{
throw new ObjectDisposedException(GetType().Name);
}
var t = new uint[1];
GL.GenFramebuffers(1, t);
framebuffer = t[0];
GL.GenTextures(1, t);
handle = t[0];
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, handle);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, textureParams.MinFilter.ToInt());
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, textureParams.MagFilter.ToInt());
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, textureParams.WrapModeU.ToInt());
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, textureParams.WrapModeV.ToInt());
int bpp;
if (Format == RenderTextureFormat.RGBA8)
{
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, size.Width, size.Height, 0, PixelFormat.Rgba, PixelType.UnsignedByte, (IntPtr)null);
bpp = 4;
}
else
{
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgb, size.Width, size.Height, 0, PixelFormat.Rgb, PixelType.UnsignedShort565, (IntPtr)null);
bpp = 2;
}
MemoryUsed = SurfaceSize.Width * SurfaceSize.Height * bpp;
uint oldFramebuffer = PlatformRenderer.CurrentFramebuffer;
PlatformRenderer.BindFramebuffer(framebuffer);
PlatformRenderer.CheckErrors();
GL.FramebufferTexture2D(
FramebufferTarget.Framebuffer,
FramebufferSlot.ColorAttachment0,
TextureTarget.Texture2D,
handle,
level: 0);
if ((int)GL.CheckFramebufferStatus(FramebufferTarget.Framebuffer) != (int)FramebufferErrorCode.FramebufferComplete)
{
throw new Exception("Failed to create render texture. Framebuffer is incomplete.");
}
AttachRenderBuffer(FramebufferSlot.DepthAttachment, RenderbufferInternalFormat.DepthComponent16, out depthBuffer);
Renderer.Clear(Color4.Black);
PlatformRenderer.MarkTextureSlotAsDirty(0);
PlatformRenderer.BindFramebuffer(oldFramebuffer);
PlatformRenderer.CheckErrors();
}
private void CreateTexture()
{
if (!Application.CurrentThread.IsMain())
{
throw new Lime.Exception("Attempt to create a RenderTexture not from the main thread");
}
var t = new uint[1];
GL.GenFramebuffers(1, t);
framebuffer = t[0];
GL.GenTextures(1, t);
handle = t[0];
PlatformRenderer.PushTexture(handle, 0);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, textureParams.MinFilter.ToInt());
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, textureParams.MagFilter.ToInt());
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, textureParams.WrapModeU.ToInt());
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, textureParams.WrapModeV.ToInt());
int bpp;
if (Format == RenderTextureFormat.RGBA8)
{
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, size.Width, size.Height, 0, PixelFormat.Rgba, PixelType.UnsignedByte, (IntPtr)null);
bpp = 4;
}
else
{
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgb, size.Width, size.Height, 0, PixelFormat.Rgb, PixelType.UnsignedShort565, (IntPtr)null);
bpp = 2;
}
MemoryUsed = SurfaceSize.Width * SurfaceSize.Height * bpp;
uint oldFramebuffer = PlatformRenderer.CurrentFramebuffer;
PlatformRenderer.BindFramebuffer(framebuffer);
PlatformRenderer.CheckErrors();
GL.FramebufferTexture2D(
FramebufferTarget.Framebuffer,
FramebufferSlot.ColorAttachment0,
TextureTarget.Texture2D,
handle,
level: 0);
if ((int)GL.CheckFramebufferStatus(FramebufferTarget.Framebuffer) != (int)FramebufferErrorCode.FramebufferComplete)
{
throw new Exception("Failed to create render texture. Framebuffer is incomplete.");
}
AttachRenderBuffer(FramebufferSlot.DepthAttachment, RenderbufferInternalFormat.DepthComponent16, out depthBuffer);
Renderer.Clear(0, 0, 0, 0);
PlatformRenderer.PopTexture(0);
PlatformRenderer.BindFramebuffer(oldFramebuffer);
PlatformRenderer.CheckErrors();
}