1 files changed, 84 insertions, 0 deletions
diff --git a/src/android/camera_request.h b/src/android/camera_request.h
new file mode 100644
index 00000000..5b479180
--- /dev/null
+++ b/src/android/camera_request.h
@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2019-2021, Google Inc.
+ *
+ * libcamera Android Camera Request Descriptor
+ */
+
+#pragma once
+
+#include <map>
+#include <memory>
+#include <vector>
+
+#include <libcamera/base/class.h>
+#include <libcamera/base/mutex.h>
+#include <libcamera/base/unique_fd.h>
+
+#include <libcamera/camera.h>
+#include <libcamera/framebuffer.h>
+
+#include <hardware/camera3.h>
+
+#include "camera_metadata.h"
+#include "hal_framebuffer.h"
+
+class CameraBuffer;
+class CameraStream;
+
+class Camera3RequestDescriptor
+{
+public:
+	enum class Status {
+		Success,
+		Error,
+	};
+
+	struct StreamBuffer {
+		StreamBuffer(CameraStream *stream,
+			     const camera3_stream_buffer_t &buffer,
+			     Camera3RequestDescriptor *request);
+		~StreamBuffer();
+
+		StreamBuffer(StreamBuffer &&);
+		StreamBuffer &operator=(StreamBuffer &&);
+
+		CameraStream *stream;
+		buffer_handle_t *camera3Buffer;
+		std::unique_ptr<HALFrameBuffer> frameBuffer;
+		libcamera::UniqueFD fence;
+		Status status = Status::Success;
+		libcamera::FrameBuffer *internalBuffer = nullptr;
+		const libcamera::FrameBuffer *srcBuffer = nullptr;
+		std::unique_ptr<CameraBuffer> dstBuffer;
+		Camera3RequestDescriptor *request;
+
+	private:
+		LIBCAMERA_DISABLE_COPY(StreamBuffer)
+	};
+
+	/* Keeps track of streams requiring post-processing. */
+	std::map<CameraStream *, StreamBuffer *> pendingStreamsToProcess_
+		LIBCAMERA_TSA_GUARDED_BY(streamsProcessMutex_);
+	libcamera::Mutex streamsProcessMutex_;
+
+	Camera3RequestDescriptor(libcamera::Camera *camera,
+				 const camera3_capture_request_t *camera3Request);
+	~Camera3RequestDescriptor();
+
+	bool isPending() const { return !complete_; }
+
+	uint32_t frameNumber_ = 0;
+
+	std::vector<StreamBuffer> buffers_;
+
+	CameraMetadata settings_;
+	std::unique_ptr<libcamera::Request> request_;
+	std::unique_ptr<CameraMetadata> resultMetadata_;
+
+	bool complete_ = false;
+	Status status_ = Status::Success;
+
+private:
+	LIBCAMERA_DISABLE_COPY(Camera3RequestDescriptor)
+};