clean project

Assets/Oculus/VR/Scripts/OVRKtxTexture.cs

@@ -0,0 +1,69 @@
+/************************************************************************************
+Copyright : Copyright (c) Facebook Technologies, LLC and its affiliates. All rights reserved.
+
+Your use of this SDK or tool is subject to the Oculus SDK License Agreement, available at
+https://developer.oculus.com/licenses/oculussdk/
+
+Unless required by applicable law or agreed to in writing, the Utilities SDK distributed
+under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
+ANY KIND, either express or implied. See the License for the specific language governing
+permissions and limitations under the License.
+************************************************************************************/
+
+using System.Collections;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System;
+
+using UnityEngine;
+
+// Class that manages loading of Ktx Textures through OVRPlugin
+public class OVRKtxTexture
+{
+	private const uint KTX_TTF_BC7_RGBA = 6;
+	private const uint KTX_TTF_ASTC_4x4_RGBA = 10;
+
+	public static bool Load(byte[] data, ref OVRTextureData ktxData)
+	{
+		int unmanagedSize = Marshal.SizeOf(data[0]) * data.Length;
+		IntPtr dataPtr = Marshal.AllocHGlobal(unmanagedSize);
+
+		Marshal.Copy(data, 0, dataPtr, data.Length);
+		IntPtr ktxTexturePtr = OVRPlugin.Ktx.LoadKtxFromMemory(dataPtr, (uint)data.Length);
+		Marshal.FreeHGlobal(dataPtr);
+
+		ktxData.width = (int)OVRPlugin.Ktx.GetKtxTextureWidth(ktxTexturePtr);
+		ktxData.height = (int)OVRPlugin.Ktx.GetKtxTextureHeight(ktxTexturePtr);
+
+		bool transcodeResult = false;
+#if UNITY_ANDROID && !UNITY_EDITOR
+		transcodeResult = OVRPlugin.Ktx.TranscodeKtxTexture(ktxTexturePtr, KTX_TTF_ASTC_4x4_RGBA);
+		ktxData.transcodedFormat = TextureFormat.ASTC_4x4;
+#else
+		transcodeResult = OVRPlugin.Ktx.TranscodeKtxTexture(ktxTexturePtr, KTX_TTF_BC7_RGBA);
+		ktxData.transcodedFormat = TextureFormat.BC7;
+#endif
+		if (!transcodeResult)
+		{
+			Debug.LogError("Failed to transcode KTX texture.");
+			return false;
+		}
+
+		uint textureSize = OVRPlugin.Ktx.GetKtxTextureSize(ktxTexturePtr);
+		IntPtr textureDataPtr = Marshal.AllocHGlobal(sizeof(byte) * (int)textureSize);
+		if(!OVRPlugin.Ktx.GetKtxTextureData(ktxTexturePtr, textureDataPtr, textureSize))
+		{
+			Debug.LogError("Failed to get texture data from Ktx texture reference");
+			return false;
+		}
+
+		byte[] textureData = new byte[textureSize];
+		Marshal.Copy(textureDataPtr, textureData, 0, textureData.Length);
+		Marshal.FreeHGlobal(textureDataPtr);
+		ktxData.data = textureData;
+
+		OVRPlugin.Ktx.DestroyKtxTexture(ktxTexturePtr);
+
+		return true;
+	}
+}