public ESTexture2D(Bitmap image, GL11.All filter)
{
InitWithBitmapGL11(image, filter);
}
public void InitWithDataGL11(IntPtr data, SurfaceFormat pixelFormat, int width, int height, Size size, GL11.All filter)
{
openGLVersion = GLContextVersion.Gles1_1;
GL11.GL.GenTextures(1, ref _name);
GL11.GL.BindTexture(GL11.All.Texture2D, _name);
GL11.GL.TexParameter(GL11.All.Texture2D, GL11.All.TextureMinFilter, (int)filter);
GL11.GL.TexParameter(GL11.All.Texture2D, GL11.All.TextureMagFilter, (int)filter);
GL11.GL.TexParameter(GL11.All.Texture2D, GL11.All.TextureWrapS, (int)GL11.All.ClampToEdge);
GL11.GL.TexParameter(GL11.All.Texture2D, GL11.All.TextureWrapT, (int)GL11.All.ClampToEdge);
int sz = 0;
switch (pixelFormat)
{
case SurfaceFormat.Color /*kTexture2DPixelFormat_RGBA8888*/:
case SurfaceFormat.Dxt1:
case SurfaceFormat.Dxt3:
sz = 4;
GL11.GL.TexImage2D(GL11.All.Texture2D, 0, (int)GL11.All.Rgba, (int)width, (int)height, 0, GL11.All.Rgba, GL11.All.UnsignedByte, data);
break;
case SurfaceFormat.Bgra4444 /*kTexture2DPixelFormat_RGBA4444*/:
sz = 2;
GL11.GL.TexImage2D(GL11.All.Texture2D, 0, (int)GL11.All.Rgba, (int)width, (int)height, 0, GL11.All.Rgba, GL11.All.UnsignedShort4444, data);
break;
case SurfaceFormat.Bgra5551 /*kTexture2DPixelFormat_RGB5A1*/:
sz = 2;
GL11.GL.TexImage2D(GL11.All.Texture2D, 0, (int)GL11.All.Rgba, (int)width, (int)height, 0, GL11.All.Rgba, GL11.All.UnsignedShort5551, data);
break;
case SurfaceFormat.Alpha8 /*kTexture2DPixelFormat_A8*/:
sz = 1;
GL11.GL.TexImage2D(GL11.All.Texture2D, 0, (int)GL11.All.Alpha, (int)width, (int)height, 0, GL11.All.Alpha, GL11.All.UnsignedByte, data);
break;
default:
throw new NotSupportedException("Texture format");
}
_size = size;
_width = width;
_height = height;
_format = pixelFormat;
_maxS = size.Width / (float)width;
_maxT = size.Height / (float)height;
_pixelData = data;
}
public ESTexture2D(IntPtr data, SurfaceFormat pixelFormat, int width, int height, Size size, GL11.All filter)
{
InitWithDataGL11(data, pixelFormat, width, height, size, filter);
}
public void InitWithBitmapGL11(Bitmap imageSource, GL11.All filter)
{
//TODO: Android.Opengl.GLUtils.GetInternalFormat()
openGLVersion = GLContextVersion.Gles1_1;
_format = SurfaceFormat.Color;
if (imageSource.HasAlpha)
_format = SurfaceFormat.Color;
// scale up bitmap to be power of 2 dimensions but dont exceed 1024x1024.
// Note: may not have to do this with OpenGL 2+
_width = (int)Math.Pow(2, Math.Min(10, Math.Ceiling(Math.Log10(imageSource.Width) / Math.Log10(2))));
_height = (int)Math.Pow(2, Math.Min(10, Math.Ceiling(Math.Log10(imageSource.Height) / Math.Log10(2))));
_size.Width = imageSource.Width;
_size.Height = imageSource.Height;
using (Bitmap imageScaled = Bitmap.CreateScaledBitmap(imageSource, _width, _height, false))
{
GL11.GL.GenTextures(1, ref _name);
GL11.GL.BindTexture(GL11.All.Texture2D, _name);
GL11.GL.TexParameter(GL11.All.Texture2D, GL11.All.TextureMinFilter, (int)filter);
GL11.GL.TexParameter(GL11.All.Texture2D, GL11.All.TextureMagFilter, (int)filter);
Android.Opengl.GLUtils.TexImage2D((int)GL11.All.Texture2D, 0, imageScaled, 0);
}
_maxS = _size.Width / (float)_width;
_maxT = _size.Height / (float)_height;
_pixelData = imageSource.Handle;
}
