public static Texture2D LoadTextureOIIO(string filePath, bool isLinear)
{
// TODO: need to flip? Repere bottom left, Y-up
int ret = OIIOAPI.oiio_open_image(filePath);
if (ret == 0)
{
Debug.LogWarning("Could not open image " + filePath + " with OIIO.");
return(null);
}
int width = -1;
int height = -1;
int nchannels = -1;
OIIOAPI.BASETYPE format = OIIOAPI.BASETYPE.NONE;
ret = OIIOAPI.oiio_get_image_info(ref width, ref height, ref nchannels, ref format);
if (ret == 0)
{
Debug.LogWarning("Could not get info about image " + filePath + " with OIIO");
return(null);
}
TexConv conv = new TexConv();
bool canConvert = Format2Format(format, nchannels, ref conv);
if (!canConvert)
{
Debug.LogWarning("Could not create image from format: " + conv.format + " with option: " + conv.options);
return(CreateSmallImage());
}
// TMP
else if (conv.options.HasFlag(TextureConversionOptions.SHORT_TO_FLOAT) || conv.options.HasFlag(TextureConversionOptions.SHORT_TO_INT))
{
Debug.LogWarning("Could not create image from format: " + conv.format + " with option: " + conv.options);
return(CreateSmallImage());
}
Texture2D image = new Texture2D(width, height, conv.format, true, isLinear); // with mips
var pixels = image.GetRawTextureData();
GCHandle handle = GCHandle.Alloc(pixels, GCHandleType.Pinned);
ret = OIIOAPI.oiio_fill_image_data(handle.AddrOfPinnedObject(), conv.options.HasFlag(TextureConversionOptions.RGB_TO_RGBA) ? 1 : 0);
if (ret == 1)
{
image.LoadRawTextureData(pixels);
image.Apply();
}
else
{
Debug.LogWarning("Could not fill texture data of " + filePath + " with OIIO.");
return(null);
}
return(image);
}
public override void OnImportAsset(UnityEditor.AssetImporters.AssetImportContext ctx)
{
// NOTE: repere bas gauche, Y up.
int ret = OIIOAPI.oiio_open_image(assetPath);
if (ret == 0)
{
Debug.Log("could not open " + assetPath);
return;
}
int width = -1;
int height = -1;
int nchannels = -1;
OIIOAPI.BASETYPE format = OIIOAPI.BASETYPE.NONE;
ret = OIIOAPI.oiio_get_image_info(ref width, ref height, ref nchannels, ref format);
if (ret == 0)
{
Debug.Log("Could not get width/height of " + assetPath);
return;
}
imageDimensions.Set(width, height);
TextureFormat textureFormat = Format2Format(format, nchannels);
var image = new Texture2D(width, height, textureFormat, false, true); // with mips, linear
int do_rgb_to_rgba = 0;
if ((format == OIIOAPI.BASETYPE.FLOAT && nchannels == 3) ||
(format == OIIOAPI.BASETYPE.HALF && nchannels == 3))
{
do_rgb_to_rgba = 1;
}
//Color[] pixels = image.GetPixels();
var pixels = image.GetRawTextureData();
GCHandle handle = GCHandle.Alloc(pixels, GCHandleType.Pinned);
ret = OIIOAPI.oiio_fill_image_data(handle.AddrOfPinnedObject(), do_rgb_to_rgba);
if (ret == 1)
{
image.LoadRawTextureData(pixels);
//image.SetPixels(pixels);
image.Apply();
}
else
{
Debug.Log("Could not fill texture data of " + assetPath);
return;
}
#if UNITY_2017_3_OR_NEWER
var filename = Path.GetFileNameWithoutExtension(assetPath);
ctx.AddObjectToAsset(filename, image);
ctx.SetMainObject(image);
#else
ctx.SetMainObject(image);
#endif
}
