Add initial AR playback support

openVulkanoCpp/AR/Provider/Playback/ArPlaybackReader.cpp

@@ -0,0 +1,60 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include "ArPlaybackReader.hpp"
+
+#if __has_include("turbojpeg.h")
+#include <turbojpeg.h>
+
+namespace openVulkanoCpp::AR::Playback
+{
+	ColorImg ArPlaybackReader::ReadColorImage()
+	{
+		ColorImg img;
+		auto file = m_archiveColor.GetNextFile();
+
+		long unsigned int jpegSize = file->second.Size();
+		unsigned char* compressedImage = reinterpret_cast<uint8_t*>(file->second.Data());
+
+		int jpegSubsamp;
+		tjhandle jpegDecompressor = tjInitDecompress();
+		tjDecompressHeader2(jpegDecompressor, compressedImage, jpegSize, &img.cols, &img.rows, &jpegSubsamp);
+
+		img.channels = 3;
+		img.dataPtr = std::shared_ptr<uint8_t>(new uint8_t[img.cols * img.rows * 3]);
+		img.data = img.dataPtr.get();
+
+		//TODO is it better to not map to rgb? to keep the same pipeline as on device
+		tjDecompress2(jpegDecompressor, compressedImage, jpegSize, img.data, img.cols, 0/*pitch*/, img.rows, TJPF_RGB, TJFLAG_FASTDCT);
+		//tjDecompressToYUV2(jpegDecompressor, compressedImage, jpegSize, img.data, img.cols, img.rows, 1, TJFLAG_FASTDCT);
+		tjDestroy(jpegDecompressor);
+
+		//auto buff = new uint8_t[img.cols * img.rows * 3];
+
+		//YuvUtils::NV12FromChromaPlanes(buff, img.data + (img.cols * img.rows), img.cols * img.rows / 4);
+
+		return img;
+	}
+}
+
+#else
+#define STB_IMAGE_IMPLEMENTATION
+#include <stb_image.h>
+
+namespace openVulkanoCpp::AR::Playback
+{
+	ColorImg ArPlaybackReader::ReadColorImage()
+	{
+		ColorImg img;
+		auto file = m_archiveColor.GetNextFile();
+		img.dataPtr = std::shared_ptr<uint8_t>(
+				stbi_load_from_memory(reinterpret_cast<stbi_uc*>(file->second.Data()), file->second.Size(), &img.cols, &img.rows, &img.channels, 3),
+				&stbi_image_free);
+		img.data = img.dataPtr.get();
+		return img;
+	}
+}
+#endif