public static FrameBuffer Create(int width, int height, IGraphicsContext context)
{
int textureHandle = context.GenTexture();
context.BindTexture(TextureTarget.Texture2D, textureHandle);
context.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBaseLevel, 0);
context.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, 0);
context.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
context.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
context.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, width, height, false, PixelFormat.Bgra, PixelType.UnsignedByte, (IntPtr)null);
var texture = new Texture2D(context, textureHandle, width, height);
int handle;
context.GenFrameBuffers(1, out handle);
context.BindFrameBuffer(FramebufferTarget.Framebuffer, handle);
context.FrameBufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2D, textureHandle, 0);
context.BindFrameBuffer(FramebufferTarget.Framebuffer, 0);
return(new FrameBuffer(handle, texture));
}
public override Texture2D Process(Bitmap bitmap, IResourceContext context)
{
BitmapData data = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, Format);
IGraphicsContext gc = context.Locator.GetService <IGraphicsContext>();
int id = gc.GenTexture();
gc.BindTexture(TextureTarget.Texture2D, id);
gc.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, false,
OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
bitmap.UnlockBits(data);
//gc.GenerateMipmap(GenerateMipmapTarget.Texture2D);
gc.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBaseLevel, 0);
gc.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, 0);
gc.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
gc.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
bitmap.Dispose();
Console.WriteLine(GC.GetTotalMemory(true));
return(new Texture2D(gc, id, data.Width, data.Height));
}
public int GenTexture()
{
int tmp = forwarding.GenTexture();
CheckGLError();
GLCALLS++;
return(tmp);
}
public static Texture2D LoadTexture(IGraphicsContext context, Stream stream)
{
Bitmap bitmap = new Bitmap(stream);
BitmapData data = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppPArgb);
int id = context.GenTexture();
context.BindTexture(TextureTarget.Texture2D, id);
context.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, false,
OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
bitmap.UnlockBits(data);
context.GenerateMipmap(GenerateMipmapTarget.Texture2D);
return(new Texture2D(context, id, data.Width, data.Height));
}
public static FrameBuffer Create(int width, int height, IGraphicsContext context)
{
int textureHandle = context.GenTexture();
context.BindTexture(TextureTarget.Texture2D, textureHandle);
context.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBaseLevel, 0);
context.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, 0);
context.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
context.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
context.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, width, height, false, PixelFormat.Bgra, PixelType.UnsignedByte, (IntPtr)null);
var texture = new Texture2D(context, textureHandle, width, height);
int handle;
context.GenFrameBuffers(1, out handle);
context.BindFrameBuffer(FramebufferTarget.Framebuffer, handle);
context.FrameBufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2D, textureHandle, 0);
context.BindFrameBuffer(FramebufferTarget.Framebuffer, 0);
return new FrameBuffer(handle, texture);
}
