protected virtual void SetupTexture2D(GraphicsInterface gi, int width, int height, TextureInternalFormat internalFormat, TexturePixelFormat pixelFormat, PixelComponentType pixelType, IntPtr pixelData, bool createMipMaps)
{
fWidth = width;
fHeight = height;
fInternalFormat = internalFormat;
fPixelFormat = pixelFormat;
fPixelType = pixelType;
// Setup the alignment
fGI.PixelStore(PixelStore.UnpackAlignment, 1);
// Allocate storage for the texture
// We do this once at the beginning to allocate space for the texture object
fGI.TexImage2D(0, internalFormat, fWidth, fHeight, 0, pixelFormat, pixelType, pixelData);
// Setup default filters and wrapping
SetupFiltering();
SetupWrapping();
if (createMipMaps)
{
// Make call to generate MipMap
//fGI.GenerateMipmap();
// Alter the min filter to use the mipmap
fGI.TexParameter(TextureParameterTarget.Texture2d, TextureParameterName.TextureMinFilter, TextureMinFilter.LinearMipmapLinear);
}
}
/// <inheritdoc />
public override void UploadToTexture(IntPtr data, Vector2 size, TextureInternalFormat internalFormat, TexturePixelFormat pixelFormat)
{
InternalFormat intFormat = (InternalFormat)Enum.Parse(typeof(InternalFormat), internalFormat.ToString());
PixelFormat glFormat = (PixelFormat)Enum.Parse(typeof(PixelFormat), pixelFormat.ToString());
GLThread.ExecuteGLThread(() =>
{
// Set scaling to pixel perfect.
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, Gl.NEAREST);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, Gl.NEAREST);
Gl.TexImage2D(TextureTarget.Texture2d, 0, intFormat, (int)size.X, (int)size.Y, 0, glFormat, PixelType.UnsignedByte, data);
Gl.GenerateMipmap(TextureTarget.Texture2d);
CheckError("after uploading texture");
});
}
public Texture(string name, byte[] data, TextureDataType type, TextureFormat format,
Size pSize, TextureInternalFormat internalFormat)
: base("tex_" + name, GlHandleType.Texture)
{
gl.glBindTexture((uint)GL.TEXTURE_2D, m_iObject[0]);
gl.glTexImage2D((uint)GL.TEXTURE_2D, 0, (int)internalFormat, pSize.Width, pSize.Height, 0, (uint)format, (uint)type,
data);
gl.glTexParameteri((uint)GL.TEXTURE_2D, (uint)GL.TEXTURE_WRAP_S, (int)GL.CLAMP_TO_EDGE);
gl.glTexParameteri((uint)GL.TEXTURE_2D, (uint)GL.TEXTURE_WRAP_T, (int)GL.CLAMP_TO_EDGE);
gl.glTexParameteri((uint)GL.TEXTURE_2D, (uint)GL.TEXTURE_MIN_FILTER, (int)GL.LINEAR_MIPMAP_LINEAR);
gl.glTexParameteri((uint)GL.TEXTURE_2D, (uint)GL.TEXTURE_MAG_FILTER, (int)GL.LINEAR);
gl.glGenerateMipmap((uint)GL.TEXTURE_2D);
m_sDimension = pSize;
Register(true);
}
/// <inheritdoc />
public override RenderTarget CreateMSAARenderTarget(int samples, Vector2 size, TextureInternalFormat internalFormat = TextureInternalFormat.Rgba, bool attachStencil = false)
{
RenderTarget resultTarget = null;
InternalFormat intFormat = (InternalFormat)Enum.Parse(typeof(InternalFormat), internalFormat.ToString());
GLThread.ExecuteGLThread(() =>
{
// Create the FBO.
uint newFbo = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, newFbo);
// Create the texture.
uint renderTexture = Gl.GenTexture();
Gl.BindTexture(TextureTarget.Texture2dMultisample, renderTexture);
Gl.TexImage2DMultisample(TextureTarget.Texture2dMultisample, samples, intFormat, (int)size.X, (int)size.Y, true);
// Attach the texture to the frame buffer.
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2dMultisample, renderTexture, 0);
// Attach color components.
int[] modes = { Gl.COLOR_ATTACHMENT0 };
Gl.DrawBuffers(modes);
// Create render buffer.
uint depthBuffer = Gl.GenRenderbuffer();
Gl.BindRenderbuffer(RenderbufferTarget.Renderbuffer, depthBuffer);
Gl.RenderbufferStorageMultisample(RenderbufferTarget.Renderbuffer, samples, InternalFormat.Depth24Stencil8, (int)size.X, (int)size.Y);
Gl.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, attachStencil ? FramebufferAttachment.DepthStencilAttachment : FramebufferAttachment.DepthAttachment, RenderbufferTarget.Renderbuffer, depthBuffer);
// Check status.
FramebufferStatus status = Gl.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
if (status != FramebufferStatus.FramebufferComplete)
{
Engine.Log.Warning($"MSAA Framebuffer creation failed. Error code {status}.", MessageSource.GL);
}
// Construct a texture object for it.
Texture targetTexture = new GLTexture(renderTexture, new Vector2(size.X, size.Y), null, $"MSAA{samples} FBO Texture");
// Create the render target object.
resultTarget = new GlRenderTarget(newFbo, size, targetTexture);
// Clear the target.
ClearScreen();
CheckError("creating msaa fbo");
// Restore bindings and so on.
Engine.Renderer?.EnsureRenderTarget();
});
return(resultTarget);
}
/// <inheritdoc />
public override RenderTarget CreateRenderTarget(Vector2 size, bool smooth = false, TextureInternalFormat internalFormat = TextureInternalFormat.Rgba,
TexturePixelFormat pixelFormat = TexturePixelFormat.Rgba, bool attachStencil = false)
{
RenderTarget resultTarget = null;
InternalFormat intFormat = (InternalFormat)Enum.Parse(typeof(InternalFormat), internalFormat.ToString());
PixelFormat glFormat = (PixelFormat)Enum.Parse(typeof(PixelFormat), pixelFormat.ToString());
GLThread.ExecuteGLThread(() =>
{
// Create the FBO which rendering will be done to.
uint newFbo = Gl.GenFramebuffer();
Gl.BindFramebuffer(FramebufferTarget.Framebuffer, newFbo);
// Create the texture.
uint renderTexture = Gl.GenTexture();
Gl.BindTexture(TextureTarget.Texture2d, renderTexture);
Gl.TexImage2D(TextureTarget.Texture2d, 0, intFormat, (int)size.X, (int)size.Y, 0, glFormat,
PixelType.UnsignedByte, IntPtr.Zero);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMinFilter, smooth ? Gl.LINEAR : Gl.NEAREST);
Gl.TexParameter(TextureTarget.Texture2d, TextureParameterName.TextureMagFilter, smooth ? Gl.LINEAR : Gl.NEAREST);
// Attach the texture to the frame buffer.
Gl.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2d, renderTexture, 0);
// Attach color components.
int[] modes = { Gl.COLOR_ATTACHMENT0 };
Gl.DrawBuffers(modes);
// Create render buffer.
uint depthBuffer = Gl.GenRenderbuffer();
Gl.BindRenderbuffer(RenderbufferTarget.Renderbuffer, depthBuffer);
Gl.RenderbufferStorage(RenderbufferTarget.Renderbuffer, InternalFormat.Depth24Stencil8, (int)size.X,
(int)size.Y);
Gl.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, attachStencil ? FramebufferAttachment.DepthStencilAttachment : FramebufferAttachment.DepthAttachment, RenderbufferTarget.Renderbuffer, depthBuffer);
// Check status.
FramebufferStatus status = Gl.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
if (status != FramebufferStatus.FramebufferComplete)
{
Engine.Log.Warning($"Framebuffer creation failed. Error code {status}.", MessageSource.GL);
}
// Create the texture object.
Texture targetTexture = new GLTexture(renderTexture, new Vector2(size.X, size.Y), null, $"FBO {newFbo} Texture");
// Create the render target object.
resultTarget = new GlRenderTarget(newFbo, size, targetTexture);
// Clear the target.
ClearScreen();
CheckError("creating scale fbo");
// Restore bindings and so on.
Engine.Renderer?.EnsureRenderTarget();
});
return(resultTarget);
}
internal void CopyTexImage2D(Texture2DTarget target, int level, TextureInternalFormat internalFormat, int x, int y, int width, int height, int border)
{
gl.glCopyTexImage2D((int)target, level, (int)internalFormat, x, y, width, height, border);
CheckException();
}
//internal void ReadPixels(int x, int y, int width, int height, GLPixelFormat format, PixelComponentType type, sbyte[] pixels)
//{
// gl.glReadPixels(x, y, width, height, (int)format, (int)type, pixels);
// CheckException();
//}
//internal void ReadPixels(int x, int y, int width, int height, GLPixelFormat format, PixelComponentType type, short[] pixels)
//{
// gl.glReadPixels(x, y, width, height, (int)format, (int)type, pixels);
// CheckException();
//}
//internal void ReadPixels(int x, int y, int width, int height, GLPixelFormat format, PixelComponentType type, ushort[] pixels)
//{
// gl.glReadPixels(x, y, width, height, (int)format, (int)type, pixels);
// CheckException();
//}
//internal void ReadPixels(int x, int y, int width, int height, GLPixelFormat format, PixelComponentType type, int[] pixels)
//{
// gl.glReadPixels(x, y, width, height, (int)format, (int)type, pixels);
// CheckException();
//}
//internal void ReadPixels(int x, int y, int width, int height, GLPixelFormat format, PixelComponentType type, uint[] pixels)
//{
// gl.glReadPixels(x, y, width, height, (int)format, (int)type, pixels);
// CheckException();
//}
//internal void ReadPixels(int x, int y, int width, int height, GLPixelFormat format, PixelComponentType type, float[] pixels)
//{
// gl.glReadPixels(x, y, width, height, (int)format, (int)type, pixels);
// CheckException();
//}
#endregion
internal void CopyTexImage1D(int level, TextureInternalFormat internalFormat, int x, int y, int width, int border)
{
gl.glCopyTexImage1D((int)Texture1DTarget.Texture1d, level, (int)internalFormat, x, y, width, border);
CheckException();
}
public static void CopyTexImage1D(int level, TextureInternalFormat internalFormat, int x, int y, int width, int border)
{
gl.glCopyTexImage1D((int)Texture1DTarget.Texture1d, level, (int)internalFormat, x, y, width, border);
}
public GLTextureRectangle(GraphicsInterface gi, int width, int height, TextureInternalFormat internalFormat, TexturePixelFormat pixelFormat, PixelComponentType pixelType)
: base(gi, TextureBindTarget.Rectangle)
{
gi.Enable(GLOption.TextureRectangle);
SetupTexture2D(gi, width, height, internalFormat, pixelFormat, pixelType, IntPtr.Zero, false);
}
public void Storage(uint width, uint height, TextureInternalFormat format)
{
gl.glBindRenderbuffer((uint)GL.RENDERBUFFER, glObject);
gl.glRenderbufferStorage((uint)GL.RENDERBUFFER, format, width, height);
}
public Renderbuffer(string strName, uint width, uint height, TextureInternalFormat format)
: base(strName, GlHandleType.Renderbuffer)
{
Storage(width, height, format);
}
public Texture(Image image, TextureInternalFormat internalFormat = TextureInternalFormat.RGBA8)
: this(image.Name.Replace("img_", ""), image.ToByteArray(), TextureDataType.UnsignedInt8888Rev, TextureFormat.RGBA, image.Size, internalFormat)
{
}
public GLTexture2D(GraphicsInterface gi, int width, int height, TextureInternalFormat internalFormat, TexturePixelFormat pixelFormat, PixelComponentType pixelType, IntPtr pixelData, bool createMipMaps)
: base(gi, TextureBindTarget.Texture2d)
{
SetupTexture2D(gi, width, height, internalFormat, pixelFormat, pixelType, pixelData, createMipMaps);
}
public void TexImage1D(Texture1DTarget target, int level, TextureInternalFormat internalformat, int width, int border, TexturePixelFormat format, PixelComponentType type, object pixels)
{
gl.glTexImage1D((int)target, level, (int)internalformat, width, border, (int)format, (int)type, pixels);
}
public static void TexImage1D(int level, TextureInternalFormat internalformat, int width, int border, TexturePixelFormat format, PixelComponentType type, IntPtr pixels)
{
gl.glTexImage1D((int)Texture1DTarget.Texture1d, level, (int)internalformat, width, border, (int)format, (int)type, pixels);
}
public void TexImage2D(Texture2DTarget target, int level, TextureInternalFormat internalformat, int width, int height, int border, TexturePixelFormat format, PixelComponentType type, object pixels)
{
gl.glTexImage2D((int)target, level, (int)internalformat, width, height, border, (int)format, (int)type, pixels);
CheckException();
}
public static extern void glRenderbufferStorage(uint i, TextureInternalFormat format, uint width, uint height);
