From 3030ffc9f21ce5ed3a160d514c94417a1dabf397 Mon Sep 17 00:00:00 2001
From: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Date: Wed, 9 Oct 2024 13:08:56 +0200
Subject: rkisp1: Export buffers from main and self paths

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
---
 src/libcamera/pipeline/rkisp1/rkisp1.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
index 42961c12..83ac666c 100644
--- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
+++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
@@ -200,6 +200,11 @@ private:
 	std::queue<FrameBuffer *> availableParamBuffers_;
 	std::queue<FrameBuffer *> availableStatBuffers_;
 
+	std::vector<std::unique_ptr<FrameBuffer>> mainPathBuffers_;
+	std::vector<std::unique_ptr<FrameBuffer>> selfPathBuffers_;
+	std::queue<FrameBuffer *> availableMainPathBuffers_;
+	std::queue<FrameBuffer *> availableSelfPathBuffers_;
+
 	Camera *activeCamera_;
 
 	const MediaPad *ispSink_;
@@ -901,11 +906,30 @@ int PipelineHandlerRkISP1::allocateBuffers(Camera *camera)
 
 	data->ipa_->mapBuffers(data->ipaBuffers_);
 
+	/* Allocate scratch buffers for the two output video devices. */
+	ret = mainPath_.exportBuffers(maxCount, &mainPathBuffers_);
+	if (ret < 0)
+		goto error;
+
+	for (std::unique_ptr<FrameBuffer> &buffer : mainPathBuffers_)
+		availableMainPathBuffers_.push(buffer.get());
+
+	if (hasSelfPath_) {
+		ret = selfPath_.exportBuffers(maxCount, &selfPathBuffers_);
+		if (ret < 0)
+			goto error;
+
+		for (std::unique_ptr<FrameBuffer> &buffer : selfPathBuffers_)
+			availableSelfPathBuffers_.push(buffer.get());
+	}
+
 	return 0;
 
 error:
 	paramBuffers_.clear();
 	statBuffers_.clear();
+	mainPathBuffers_.clear();
+	selfPathBuffers_.clear();
 
 	return ret;
 }
-- 
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