| private TexImage1D ( uint target, int level, uint internalformat, int width, int border, uint format, uint type, IntPtr pixels ) : void | ||
| target | uint | |
| level | int | |
| internalformat | uint | |
| width | int | |
| border | int | |
| format | uint | |
| type | uint | |
| pixels | IntPtr | |
| return | void | |
/// <summary>
/// upadte texture's content.
/// </summary>
/// <param name="texture"></param>
/// <param name="bitmap"></param>
public static void UpdateContent(this Texture texture, Bitmap bitmap)
{
// Lock the image bits (so that we can pass them to OGL).
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
OpenGL.BindTexture((uint)texture.Target, texture.Id);
if (texture.Target == TextureTarget.Texture1D)
{
OpenGL.TexImage1D((uint)texture.Target, 0, (int)OpenGL.GL_RGBA, bitmapData.Width, 0, OpenGL.GL_BGRA, OpenGL.GL_UNSIGNED_BYTE, bitmapData.Scan0);
}
else if (texture.Target == TextureTarget.Texture2D)
{
OpenGL.TexImage2D((uint)texture.Target, 0, (int)OpenGL.GL_RGBA, bitmapData.Width, bitmapData.Height, 0, OpenGL.GL_BGRA, OpenGL.GL_UNSIGNED_BYTE, bitmapData.Scan0);
}
else
{
throw new NotImplementedException();
}
OpenGL.BindTexture((uint)texture.Target, 0);
// Unlock the image.
bitmap.UnlockBits(bitmapData);
//// TODO: TexSubImage2D() do not work. why?
//BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height),
// ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
//OpenGL.BindTexture(this.Target, this.Id);
//OpenGL.TexSubImage2D(this.Target, 0, 0, 0, bitmap.Width, bitmap.Height, OpenGL.GL_RGBA, OpenGL.GL_UNSIGNED_BYTE, bitmapData.Scan0);
//OpenGL.TexSubImage2D(TexSubImage2DTarget.Texture2D, 0, 0, 0, bitmap.Width, bitmap.Height, TexSubImage2DFormats.RGBA, TexSubImage2DType.UnsignedByte, bitmapData.Scan0);
//OpenGL.BindTexture(this.Target, 0);
//bitmap.UnlockBits(bitmapData);
}
private void DoInitialize(System.Drawing.Bitmap bitmap)
{
// generate texture.
// Lock the image bits (so that we can pass them to OGL).
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
//GL.ActiveTexture(GL.GL_TEXTURE0);
OpenGL.GetDelegateFor <OpenGL.glActiveTexture>()(OpenGL.GL_TEXTURE0);
OpenGL.GenTextures(1, id);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_1D, id[0]);
/* We require 1 byte alignment when uploading texture data */
//GL.PixelStorei(GL.GL_UNPACK_ALIGNMENT, 1);
/* Clamping to edges is important to prevent artifacts when scaling */
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_1D, OpenGL.GL_TEXTURE_WRAP_S, (int)OpenGL.GL_CLAMP_TO_EDGE);
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_1D, OpenGL.GL_TEXTURE_WRAP_T, (int)OpenGL.GL_CLAMP_TO_EDGE);
/* Linear filtering usually looks best for text */
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_1D, OpenGL.GL_TEXTURE_MIN_FILTER, (int)OpenGL.GL_LINEAR);
OpenGL.TexParameteri(OpenGL.GL_TEXTURE_1D, OpenGL.GL_TEXTURE_MAG_FILTER, (int)OpenGL.GL_LINEAR);
OpenGL.TexImage1D(OpenGL.GL_TEXTURE_1D, 0, OpenGL.GL_RGBA,
bitmap.Width, 0, OpenGL.GL_BGRA, OpenGL.GL_UNSIGNED_BYTE,
bitmapData.Scan0);
// Unlock the image.
bitmap.UnlockBits(bitmapData);
OpenGL.BindTexture(OpenGL.GL_TEXTURE_1D, 0);
}
/// <summary>
/// build texture's content with Bitmap.
/// </summary>
public override void Fill()
{
// generate texture.
// Lock the image bits (so that we can pass them to OGL).
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
if (target == TextureTarget.Texture1D)
{
OpenGL.TexImage1D((uint)target, 0, this.internalformat, bitmap.Width, 0, this.format, this.type, bitmapData.Scan0);
}
else if (target == TextureTarget.Texture2D)
{
OpenGL.TexImage2D((uint)target, 0, this.internalformat, bitmap.Width, bitmap.Height, 0, this.format, this.type, bitmapData.Scan0);
}
else
{
throw new NotImplementedException();
}
// Unlock the image.
bitmap.UnlockBits(bitmapData);
}
/// <summary>
/// build texture's content with Bitmap.
/// </summary>
public override void Build(BindTextureTarget target)
{
// generate texture.
// Lock the image bits (so that we can pass them to OGL).
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
if (target == BindTextureTarget.Texture1D)
{
OpenGL.TexImage1D((uint)target, 0, (int)OpenGL.GL_RGBA, bitmap.Width, 0, OpenGL.GL_BGRA, OpenGL.GL_UNSIGNED_BYTE, bitmapData.Scan0);
}
else if (target == BindTextureTarget.Texture2D)
{
OpenGL.TexImage2D((uint)target, 0, (int)OpenGL.GL_RGBA, bitmap.Width, bitmap.Height, 0, OpenGL.GL_BGRA, OpenGL.GL_UNSIGNED_BYTE, bitmapData.Scan0);
}
else
{
throw new NotImplementedException();
}
// Unlock the image.
bitmap.UnlockBits(bitmapData);
}
/// <summary>
/// build texture's content with Bitmap.
/// </summary>
public override void Fill()
{
// generate texture.
if (target == TextureTarget.Texture1D)
{
Bitmap bmp = null;
for (int level = 0; level <= this.maxLevel; level++)
{
if (level == 0)
{
bmp = this.bitmap;
}
else
{
bmp.Dispose();
int width = bmp.Width / 2;
if (width < 1)
{
width = 1;
}
bmp = new Bitmap(bmp, width, 1);
}
// Lock the image bits (so that we can pass them to OGL).
BitmapData bitmapData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
OpenGL.TexImage1D((uint)target, level, this.internalformat, bitmap.Width, 0, this.format, this.type, bitmapData.Scan0);
// Unlock the image.
bmp.UnlockBits(bitmapData);
}
if (bmp != this.bitmap)
{
bmp.Dispose();
}
}
else if (target == TextureTarget.Texture2D)
{
Bitmap bmp = null;
for (int level = 0; level <= this.maxLevel; level++)
{
if (level == 0)
{
bmp = this.bitmap;
}
else
{
bmp.Dispose();
int width = bmp.Width / 2, height = bmp.Height / 2;
if (width < 1)
{
width = 1;
}
if (height < 1)
{
height = 1;
}
bmp = new Bitmap(bmp, width, height);
}
// Lock the image bits (so that we can pass them to OGL).
BitmapData bitmapData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height),
ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
OpenGL.TexImage2D((uint)target, level, this.internalformat, bmp.Width, bmp.Height, 0, this.format, this.type, bitmapData.Scan0);
// Unlock the image.
bmp.UnlockBits(bitmapData);
}
if (bmp != this.bitmap)
{
bmp.Dispose();
}
}
else
{
throw new Exception("Unexpected TextureTarget type!");
}
}