public MultisampleTarget(int width, int height, int samples)
{
Width = width;
Height = height;
texID = GL.GenTexture();
GLBind.BindTexture(0, GL.GL_TEXTURE_2D_MULTISAMPLE, texID);
if (GL.GLES)
{
GL.TexStorage2DMultisample(GL.GL_TEXTURE_2D_MULTISAMPLE, samples, GL.GL_RGBA8, width, height, true);
}
else
{
GL.TexImage2DMultisample(GL.GL_TEXTURE_2D_MULTISAMPLE, samples, GL.GL_RGBA, width, height, true);
}
depthID = GL.GenRenderbuffer();
GL.BindRenderbuffer(GL.GL_RENDERBUFFER, depthID);
GL.RenderbufferStorageMultisample(GL.GL_RENDERBUFFER, samples, GL.GL_DEPTH_COMPONENT24, width, height);
GL.BindRenderbuffer(GL.GL_RENDERBUFFER, 0);
fbo = GL.GenFramebuffer();
GL.BindFramebuffer(GL.GL_FRAMEBUFFER, fbo);
GL.FramebufferTexture2D(GL.GL_FRAMEBUFFER, GL.GL_COLOR_ATTACHMENT0, GL.GL_TEXTURE_2D_MULTISAMPLE, texID, 0);
GL.FramebufferRenderbuffer(GL.GL_FRAMEBUFFER,
GL.GL_DEPTH_ATTACHMENT,
GL.GL_RENDERBUFFER, depthID);
int status = GL.CheckFramebufferStatus(GL.GL_FRAMEBUFFER);
GL.BindFramebuffer(GL.GL_FRAMEBUFFER, 0);
}
public override void BindTo(int unit)
{
GLBind.BindTexture(unit, GL.GL_TEXTURE_CUBE_MAP, ID);
if (unit != 4 && LevelCount > 1 && maxLevel != currentLevels)
{
currentLevels = maxLevel;
GL.TexParameteri(GL.GL_TEXTURE_CUBE_MAP, GL.GL_TEXTURE_MAX_LEVEL, maxLevel);
}
}
public override void BindTo(int unit)
{
GLBind.BindTexture(unit, GL.GL_TEXTURE_2D, ID);
//Unit 4 is for creation, don't call it a trillion times
if (unit != 4 && LevelCount > 1 && maxLevel != currentLevels)
{
currentLevels = maxLevel;
GL.TexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAX_LEVEL, maxLevel);
}
}
public Texture2D(int width, int height, bool hasMipMaps, SurfaceFormat format) : this(true)
{
Width = width;
Height = height;
Format = format;
Format.GetGLFormat(out glInternalFormat, out glFormat, out glType);
LevelCount = hasMipMaps ? CalculateMipLevels(width, height) : 1;
currentLevels = hasMipMaps ? (LevelCount - 1) : 0;
//Bind the new TextureD
GLBind.Trash();
GLBind.BindTexture(4, GL.GL_TEXTURE_2D, ID);
//initialise the texture data
var imageSize = 0;
Dxt1 = format == SurfaceFormat.Dxt1;
if (glFormat == GL.GL_NUM_COMPRESSED_TEXTURE_FORMATS)
{
if (GLExtensions.S3TC)
{
switch (Format)
{
case SurfaceFormat.Dxt1:
case SurfaceFormat.Dxt3:
case SurfaceFormat.Dxt5:
imageSize = ((Width + 3) / 4) * ((Height + 3) / 4) * format.GetSize();
break;
default:
throw new NotSupportedException();
}
GL.CompressedTexImage2D(GL.GL_TEXTURE_2D, 0, glInternalFormat,
Width, Height, 0,
imageSize, IntPtr.Zero);
}
else
{
GL.TexImage2D(GL.GL_TEXTURE_2D, 0,
GL.GL_RGBA,
Width, Height, 0,
GL.GL_BGRA, GL.GL_UNSIGNED_BYTE, IntPtr.Zero);
}
}
else
{
GL.TexImage2D(GL.GL_TEXTURE_2D, 0,
glInternalFormat,
Width, Height, 0,
glFormat, glType, IntPtr.Zero);
}
//enable filtering
GL.TexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR);
GL.TexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR);
}
public override void BindTo(int unit)
{
if (IsDisposed)
{
throw new ObjectDisposedException("Texture2D");
}
GLBind.BindTexture(unit, GL.GL_TEXTURE_2D, ID);
//Unit 4 is for creation, don't call it a trillion times
if (unit != 4 && LevelCount > 1 && maxLevel != currentLevels)
{
currentLevels = maxLevel;
GL.TexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAX_LEVEL, maxLevel);
}
}
public override void BindTo(int unit)
{
GLBind.BindTexture(unit, GL.GL_TEXTURE_2D, ID);
}
