From 1427d124e86a134076f6abdd4a11b037e005fede Mon Sep 17 00:00:00 2001
From: Jacopo Mondi <jacopo@jmondi.org>
Date: Fri, 26 Feb 2021 11:48:47 +0100
Subject: android: mm: Provide helper macro for PIMPL

Each memory backend has to declare a CameraBuffer class implementation
that bridges the API calls to each CameraBuffer::Private implementation.

As the code is likely the same for most (if not all) backends, provide
a convenience macro that expands to the CameraBuffer class declaration.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
---
 src/android/camera_buffer.h              | 33 +++++++++++++++++++++++++++
 src/android/mm/generic_camera_buffer.cpp | 39 +-------------------------------
 2 files changed, 34 insertions(+), 38 deletions(-)

diff --git a/src/android/camera_buffer.h b/src/android/camera_buffer.h
index 784fbd50..7e8970b4 100644
--- a/src/android/camera_buffer.h
+++ b/src/android/camera_buffer.h
@@ -30,4 +30,37 @@ public:
 	size_t jpegBufferSize(size_t maxJpegBufferSize) const;
 };
 
+#define PUBLIC_CAMERA_BUFFER_IMPLEMENTATION				\
+CameraBuffer::CameraBuffer(buffer_handle_t camera3Buffer, int flags)	\
+	: Extensible(new Private(this, camera3Buffer, flags))		\
+{									\
+}									\
+CameraBuffer::~CameraBuffer()						\
+{									\
+}									\
+bool CameraBuffer::isValid() const					\
+{									\
+	const Private *const d = LIBCAMERA_D_PTR();			\
+	return d->isValid();						\
+}									\
+unsigned int CameraBuffer::numPlanes() const				\
+{									\
+	const Private *const d = LIBCAMERA_D_PTR();			\
+	return d->numPlanes();						\
+}									\
+Span<const uint8_t> CameraBuffer::plane(unsigned int plane) const	\
+{									\
+	const Private *const d = LIBCAMERA_D_PTR();			\
+	return const_cast<Private *>(d)->plane(plane);			\
+}									\
+Span<uint8_t> CameraBuffer::plane(unsigned int plane)			\
+{									\
+	Private *const d = LIBCAMERA_D_PTR();				\
+	return d->plane(plane);						\
+}									\
+size_t CameraBuffer::jpegBufferSize(size_t maxJpegBufferSize) const	\
+{									\
+	const Private *const d = LIBCAMERA_D_PTR();			\
+	return d->jpegBufferSize(maxJpegBufferSize);			\
+}
 #endif /* __ANDROID_CAMERA_BUFFER_H__ */
diff --git a/src/android/mm/generic_camera_buffer.cpp b/src/android/mm/generic_camera_buffer.cpp
index 98e63dfa..929e078a 100644
--- a/src/android/mm/generic_camera_buffer.cpp
+++ b/src/android/mm/generic_camera_buffer.cpp
@@ -85,41 +85,4 @@ size_t CameraBuffer::Private::jpegBufferSize(size_t maxJpegBufferSize) const
 				      maxJpegBufferSize);
 }
 
-CameraBuffer::CameraBuffer(buffer_handle_t camera3Buffer, int flags)
-	: Extensible(new Private(this, camera3Buffer, flags))
-{
-}
-
-CameraBuffer::~CameraBuffer()
-{
-}
-
-bool CameraBuffer::isValid() const
-{
-	const Private *const d = LIBCAMERA_D_PTR();
-	return d->isValid();
-}
-
-unsigned int CameraBuffer::numPlanes() const
-{
-	const Private *const d = LIBCAMERA_D_PTR();
-	return d->numPlanes();
-}
-
-Span<const uint8_t> CameraBuffer::plane(unsigned int plane) const
-{
-	const Private *const d = LIBCAMERA_D_PTR();
-	return const_cast<Private *>(d)->plane(plane);
-}
-
-Span<uint8_t> CameraBuffer::plane(unsigned int plane)
-{
-	Private *const d = LIBCAMERA_D_PTR();
-	return d->plane(plane);
-}
-
-size_t CameraBuffer::jpegBufferSize(size_t maxJpegBufferSize) const
-{
-	const Private *const d = LIBCAMERA_D_PTR();
-	return d->jpegBufferSize(maxJpegBufferSize);
-}
+PUBLIC_CAMERA_BUFFER_IMPLEMENTATION
-- 
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