public void EncodeFourBlocksPureBlackRGBThenDecodeIt()
{
// Arrange
const int width = 8; // One block is 4x4, so 8x8 is 4 blocks
const int height = 8;
const int channelsPerPixel = 3;
byte[] blackRGB = new byte[] { 0, 0, 0 };
byte[,,] pixels = new byte[width, height, channelsPerPixel] {
{ { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } },
{ { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } },
{ { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } },
{ { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } },
{ { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } },
{ { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } },
{ { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } },
{ { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } },
};
TempByteImageFormat image = new TempByteImageFormat(pixels);
// Act
byte[] encodedBytes = PvrtcCompress.EncodeRgb4Bpp(image);
TempByteImageFormat decoded = PvrtcDecompress.DecodeRgb4Bpp(encodedBytes, width);
byte[] firstPixel = decoded.GetPixelChannels(0, 0);
// Assert
Assert.AreEqual(32, encodedBytes.Length);
Assert.AreEqual(width, decoded.GetWidth());
Assert.AreEqual(height, decoded.GetHeight());
Assert.AreEqual(channelsPerPixel, decoded.GetChannelsPerPixel());
CollectionAssert.AreEqual(blackRGB, firstPixel);
}
public void EncodeOneBlockPureWhiteRGBThenDecodeIt()
{
// Arrange
const int width = 4; // One block is 4x4
const int height = 4;
const int channelsPerPixel = 3;
byte[] whiteRGB = new byte[] { 255, 255, 255 };
byte[,,] pixels = new byte[width, height, channelsPerPixel] {
{ { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 } },
{ { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 } },
{ { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 } },
{ { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 } },
};
TempByteImageFormat image = new TempByteImageFormat(pixels);
// Act
byte[] encodedBytes = PvrtcCompress.EncodeRgb4Bpp(image);
TempByteImageFormat decoded = PvrtcDecompress.DecodeRgb4Bpp(encodedBytes, width);
byte[] firstPixel = decoded.GetPixelChannels(0, 0);
// Assert
Assert.AreEqual(8, encodedBytes.Length);
Assert.AreEqual(width, decoded.GetWidth());
Assert.AreEqual(height, decoded.GetHeight());
Assert.AreEqual(channelsPerPixel, decoded.GetChannelsPerPixel());
CollectionAssert.AreEqual(whiteRGB, firstPixel);
}
public void EncodeRBGWhiteBlock()
{
// Arrange
byte[] expected = new byte[8] {
0, 0, 0, 0, 254, 255, 255, 255
};
const int width = 4; // One block is 4x4
const int height = 4;
const int channelsPerPixel = 3;
byte[] whiteRGB = new byte[] { 255, 255, 255 };
byte[,,] pixels = new byte[width, height, channelsPerPixel] {
{ { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 } },
{ { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 } },
{ { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 } },
{ { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 }, { 255, 255, 255 } },
};
TempByteImageFormat image = new TempByteImageFormat(pixels);
// Act
byte[] encodedBytes = PvrtcCompress.EncodeRgb4Bpp(image);
// Assert
Assert.AreEqual(8, encodedBytes.Length);
CollectionAssert.AreEqual(expected, encodedBytes);
}
private static IEnumerator _Compress24(Texture2D tex, SignalEnumerator <Texture2D> signal)
{
var width = tex.width;
var height = tex.height;
var resultTexture = new Texture2D(width, height, TextureFormat.PVRTC_RGB4, false, true);
byte[] compressed = null;
Color[] pixels = tex.GetPixels();
yield return(new AsyncExecutor <object>(x =>
{
PvrtcCompress compressor = new PvrtcCompress();
compressed = compressor.EncodeRgb4Bpp(pixels, width, height);
}));
resultTexture.LoadRawTextureData(compressed);
resultTexture.Apply();
signal.Notify(resultTexture);
}