public void uploadCompressedTextureFromByteArray (ByteArray data, uint byteArrayOffset, bool async = false)
{
// $$TODO
// this is empty for now
#if PLATFORM_MONOMAC
System.Console.WriteLine("NotImplementedWarning: Texture.uploadCompressedTextureFromByteArray()");
if (!mDidUpload) {
var clearData = new BitmapData(32,32, true, sColors[sColor % sColors.Length]);
sColor++;
uploadFromBitmapData(clearData);
clearData.dispose();
mDidUpload = true;
}
#endif
// see if this is an ATF container
data.position = byteArrayOffset;
string signature = data.readUTFBytes(3);
data.position = byteArrayOffset;
if (signature == "ATF")
{
// Bind the texture
GL.BindTexture (textureTarget, textureId);
uploadATFTextureFromByteArray(data, byteArrayOffset);
GL.BindTexture (textureTarget, 0);
if (async) {
dispatchDelayedTextureReady();
}
return;
}
#if PLATFORM_MONOTOUCH
int memUsage = (mWidth * mHeight) / 2;
sMemoryUsedForTextures += memUsage;
Console.WriteLine("Texture.uploadCompressedTextureFromByteArray() - " + mWidth + "x" + mHeight + " - Mem: " + (memUsage / 1024) + " KB - Total Mem: " + (sMemoryUsedForTextures / 1024) + " KB");
// Bind the texture
GL.BindTexture (textureTarget, textureId);
if (byteArrayOffset != 0) {
throw new NotSupportedException();
}
int dataLength = (int)(data.length - byteArrayOffset) - 4; // We remove the 4 bytes footer
// TODO: Fix hardcoded value here
OpenTK.Graphics.ES20.PixelInternalFormat pixelFormat = (OpenTK.Graphics.ES20.PixelInternalFormat)0x8C02;
GL.CompressedTexImage2D(textureTarget, 0, pixelFormat, mWidth, mHeight, 0, dataLength, data.getRawArray());
// unbind texture and pixel buffer
GL.BindTexture (textureTarget, 0);
#endif
if (async) {
dispatchDelayedTextureReady();
}
}
private unsafe void uploadATFTextureFromByteArray (ByteArray data, uint byteArrayOffset)
{
data.position = byteArrayOffset;
// read atf signature
string signature = data.readUTFBytes(3);
if (signature != "ATF") {
throw new InvalidDataException("ATF signature not found");
}
// read atf length
uint length = readUInt24(data);
if ((byteArrayOffset + length) > data.length) {
throw new InvalidDataException("ATF length exceeds byte array length");
}
// get format
uint tdata = data.readUnsignedByte( );
AtfType type = (AtfType)(tdata >> 7);
if (type != AtfType.NORMAL) {
throw new NotImplementedException("ATF Cube maps are not supported");
}
// Removing ATF format limitation to allow for multiple format support.
// AtfFormat format = (AtfFormat)(tdata & 0x7f);
// if (format != AtfFormat.Block) {
// throw new NotImplementedException("Only ATF block compressed textures are supported");
// }
// get dimensions
int width = (1 << (int)data.readUnsignedByte());
int height = (1 << (int)data.readUnsignedByte());
if (width != mWidth || height != mHeight) {
throw new InvalidDataException("ATF Width and height dont match");
}
// get mipmap count
int mipCount = (int)data.readUnsignedByte();
// read all mipmap levels
for (int level=0; level < mipCount; level++)
{
// read all gpu formats
for (int gpuFormat=0; gpuFormat < 3; gpuFormat++)
{
// read block length
uint blockLength = readUInt24(data);
if ((data.position + blockLength) > data.length) {
throw new System.IO.InvalidDataException("Block length exceeds ATF file length");
}
if (blockLength > 0) {
#if PLATFORM_MONOTOUCH
// handle PVRTC on iOS
if (gpuFormat == 1) {
OpenTK.Graphics.ES20.PixelInternalFormat pixelFormat = (OpenTK.Graphics.ES20.PixelInternalFormat)0x8C02;
fixed(byte *ptr = data.getRawArray())
{
// upload from data position
var address = new IntPtr(ptr + data.position);
GL.CompressedTexImage2D(textureTarget, level, pixelFormat, width, height, 0, (int)blockLength, address);
}
}
#endif
// TODO handle other formats/platforms
}
// next block data
data.position += blockLength;
}
}
}
public void uploadCompressedTextureFromByteArray (ByteArray data, uint byteArrayOffset, bool async = false)
{
#if PLATFORM_MONOMAC
System.Console.WriteLine("NotImplementedWarning: Texture.uploadCompressedTextureFromByteArray()");
if (!mDidUpload) {
var clearData = new BitmapData(32,32, true, sColors[sColor % sColors.Length]);
sColor++;
uploadFromBitmapData(clearData);
clearData.dispose();
mDidUpload = true;
}
#endif
// see if this is an ATF container
data.position = byteArrayOffset;
string signature = data.readUTFBytes(3);
data.position = byteArrayOffset;
if (signature == "ATF")
{
// Bind the texture
GL.BindTexture (textureTarget, textureId);
uploadATFTextureFromByteArray(data, byteArrayOffset);
GL.BindTexture (textureTarget, 0);
return;
}
#if PLATFORM_MONOTOUCH || PLATFORM_MONODROID
int memUsage = (mWidth * mHeight) / 2;
sMemoryUsedForTextures += memUsage;
Console.WriteLine("Texture.uploadCompressedTextureFromByteArray() - " + mWidth + "x" + mHeight + " - Mem: " + (memUsage / 1024) + " KB - Total Mem: " + (sMemoryUsedForTextures / 1024) + " KB");
// Bind the texture
GL.BindTexture (textureTarget, textureId);
if (byteArrayOffset != 0) {
throw new NotSupportedException();
}
#if PLATFORM_MONOTOUCH
int dataLength = (int)(data.length - byteArrayOffset) - 4; // We remove the 4 bytes footer
// TODO: Fix hardcoded value here
OpenTK.Graphics.ES20.PixelInternalFormat pixelFormat = (OpenTK.Graphics.ES20.PixelInternalFormat)0x8C02;
GL.CompressedTexImage2D(textureTarget, 0, pixelFormat, mWidth, mHeight, 0, dataLength, data.getRawArray());
#elif PLATFORM_MONODROID
data.position = 16; // skip the header
int dataLength = ((int)data.length) - 16;
GL.CompressedTexImage2D<byte>(textureTarget, 0, All.Etc1Rgb8Oes, mWidth, mHeight, 0, dataLength, data.getRawArray());
#endif
// unbind texture and pixel buffer
GL.BindTexture (textureTarget, 0);
#endif
if (async) {
// load with a delay
var timer = new flash.utils.Timer(1, 1);
timer.addEventListener(TimerEvent.TIMER, (System.Action<Event>)this.OnTextureReady );
timer.start();
}
}
