Exemple #1
0
        private GCHandle _ConvertTextureToGrayscaleBytes(AugmentedImageSrc imageSrc)
        {
            byte[] grayscaleBytes = null;

            if (imageSrc.Format == TextureFormat.RGB24 ||
                imageSrc.Format == TextureFormat.RGBA32)
            {
                Color[] pixels = imageSrc.Pixels;
                grayscaleBytes = new byte[pixels.Length];
                for (int i = 0; i < imageSrc.Height; i++)
                {
                    int widthDelta = i * imageSrc.Width;
                    for (int j = 0; j < imageSrc.Width; j++)
                    {
                        int pixelIndex = ((imageSrc.Height - 1 - i) * imageSrc.Width) + j;
                        grayscaleBytes[widthDelta + j] =
                            (byte)((
                                       (0.213 * pixels[pixelIndex].r) +
                                       (0.715 * pixels[pixelIndex].g) +
                                       (0.072 * pixels[pixelIndex].b)) * 255);
                    }
                }
            }
            else
            {
                Debug.LogError("Unsupported texture format " + imageSrc.Format);
            }

            return(GCHandle.Alloc(grayscaleBytes, GCHandleType.Pinned));
        }
Exemple #2
0
        public int AddAugmentedImageAtRuntime(IntPtr augmentedImageDatabaseHandle, string name,
                                              AugmentedImageSrc imageSrc, float width)
        {
            int outIndex = -1;

            if (InstantPreviewManager.IsProvidingPlatform)
            {
                InstantPreviewManager.LogLimitedSupportMessage(
                    "add images to Augmented Image database");
                return(outIndex);
            }

            GCHandle grayscaleBytesHandle = _ConvertTextureToGrayscaleBytes(imageSrc);

            if (grayscaleBytesHandle.AddrOfPinnedObject() == IntPtr.Zero)
            {
                return(-1);
            }

            ApiArStatus status;

            if (width > 0)
            {
                status = ExternApi.ArAugmentedImageDatabase_addImageWithPhysicalSize(
                    m_NativeSession.SessionHandle, augmentedImageDatabaseHandle, name,
                    grayscaleBytesHandle.AddrOfPinnedObject(), imageSrc.Width,
                    imageSrc.Height, imageSrc.Width, width, ref outIndex);
            }
            else
            {
                status = ExternApi.ArAugmentedImageDatabase_addImage(
                    m_NativeSession.SessionHandle, augmentedImageDatabaseHandle, name,
                    grayscaleBytesHandle.AddrOfPinnedObject(), imageSrc.Width,
                    imageSrc.Height, imageSrc.Width, ref outIndex);
            }

            if (grayscaleBytesHandle.IsAllocated)
            {
                grayscaleBytesHandle.Free();
            }

            if (status != ApiArStatus.Success)
            {
                Debug.LogWarningFormat(
                    "Failed to add aumented image at runtime with status {0}", status);
                return(-1);
            }

            return(outIndex);
        }