From c753223ad6b90550fae31aedd79fbedc13da2e75 Mon Sep 17 00:00:00 2001
From: Paul Elder <paul.elder@ideasonboard.com>
Date: Wed, 23 Sep 2020 19:05:41 +0900
Subject: libcamera, android, cam, gstreamer, qcam, v4l2: Reuse Request
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Allow reuse of the Request object by implementing reuse(). This means
the applications now have the responsibility of freeing the Request
objects, so make all libcamera users (cam, qcam, v4l2-compat, gstreamer,
android) do so.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
---
 src/qcam/main_window.h | 26 +++++++-------------------
 1 file changed, 7 insertions(+), 19 deletions(-)

(limited to 'src/qcam/main_window.h')

diff --git a/src/qcam/main_window.h b/src/qcam/main_window.h
index 5c61a4df..64bcfebc 100644
--- a/src/qcam/main_window.h
+++ b/src/qcam/main_window.h
@@ -8,6 +8,7 @@
 #define __QCAM_MAIN_WINDOW_H__
 
 #include <memory>
+#include <vector>
 
 #include <QElapsedTimer>
 #include <QIcon>
@@ -22,6 +23,7 @@
 #include <libcamera/camera_manager.h>
 #include <libcamera/controls.h>
 #include <libcamera/framebuffer_allocator.h>
+#include <libcamera/request.h>
 #include <libcamera/stream.h>
 
 #include "../cam/stream_options.h"
@@ -41,23 +43,6 @@ enum {
 	OptStream = 's',
 };
 
-class CaptureRequest
-{
-public:
-	CaptureRequest()
-	{
-	}
-
-	CaptureRequest(const Request::BufferMap &buffers,
-		       const ControlList &metadata)
-		: buffers_(buffers), metadata_(metadata)
-	{
-	}
-
-	Request::BufferMap buffers_;
-	ControlList metadata_;
-};
-
 class MainWindow : public QMainWindow
 {
 	Q_OBJECT
@@ -128,13 +113,16 @@ private:
 	Stream *vfStream_;
 	Stream *rawStream_;
 	std::map<const Stream *, QQueue<FrameBuffer *>> freeBuffers_;
-	QQueue<CaptureRequest> doneQueue_;
-	QMutex mutex_; /* Protects freeBuffers_ and doneQueue_ */
+	QQueue<Request *> doneQueue_;
+	QQueue<Request *> freeQueue_;
+	QMutex mutex_; /* Protects freeBuffers_, doneQueue_, and freeQueue_ */
 
 	uint64_t lastBufferTime_;
 	QElapsedTimer frameRateInterval_;
 	uint32_t previousFrames_;
 	uint32_t framesCaptured_;
+
+	std::vector<std::unique_ptr<Request>> requests_;
 };
 
 #endif /* __QCAM_MAIN_WINDOW__ */
-- 
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