[libcamera-devel] [PATCH v7 2/6] Add HALFrameBuffer and replace FrameBuffer in src/android

Cheng-Hao Yang chenghaoyang at chromium.org
Wed Dec 14 10:35:10 CET 2022


Thanks for the review!

Updated the above in the new patch.

On Wed, Dec 7, 2022 at 11:26 AM Laurent Pinchart <
laurent.pinchart at ideasonboard.com> wrote:

> Hi Harvey,
>
> Thank you for the patch.
>
> On Thu, Dec 01, 2022 at 09:27:29AM +0000, Harvey Yang via libcamera-devel
> wrote:
> > From: Harvey Yang <chenghaoyang at chromium.org>
> >
> > AndroidFrameBuffer is derived from FrameBuffer with access to
>
> s/AndroidFrameBuffer/HALFrameBuffer/
>
> > buffer_handle_t, which is needed for JEA usage.
> >
> > Signed-off-by: Harvey Yang <chenghaoyang at chromium.org>
> > ---
> >  src/android/camera_device.cpp                 |  3 ++-
> >  src/android/frame_buffer_allocator.h          |  7 ++---
> >  src/android/hal_framebuffer.cpp               | 22 ++++++++++++++++
> >  src/android/hal_framebuffer.h                 | 26 +++++++++++++++++++
> >  src/android/meson.build                       |  1 +
> >  .../mm/cros_frame_buffer_allocator.cpp        |  9 ++++---
> >  .../mm/generic_frame_buffer_allocator.cpp     | 11 +++++---
> >  7 files changed, 67 insertions(+), 12 deletions(-)
> >  create mode 100644 src/android/hal_framebuffer.cpp
> >  create mode 100644 src/android/hal_framebuffer.h
> >
> > diff --git a/src/android/camera_device.cpp
> b/src/android/camera_device.cpp
> > index b20e389b..872161ba 100644
> > --- a/src/android/camera_device.cpp
> > +++ b/src/android/camera_device.cpp
> > @@ -30,6 +30,7 @@
> >  #include "camera_hal_config.h"
> >  #include "camera_ops.h"
> >  #include "camera_request.h"
> > +#include "hal_framebuffer.h"
> >
> >  using namespace libcamera;
> >
> > @@ -794,7 +795,7 @@ CameraDevice::createFrameBuffer(const
> buffer_handle_t camera3buffer,
> >               planes[i].length = buf.size(i);
> >       }
> >
> > -     return std::make_unique<FrameBuffer>(planes);
> > +     return std::make_unique<HALFrameBuffer>(planes, camera3buffer);
> >  }
> >
> >  int CameraDevice::processControls(Camera3RequestDescriptor *descriptor)
> > diff --git a/src/android/frame_buffer_allocator.h
> b/src/android/frame_buffer_allocator.h
> > index 5d2eeda1..e5c94922 100644
> > --- a/src/android/frame_buffer_allocator.h
> > +++ b/src/android/frame_buffer_allocator.h
> > @@ -13,9 +13,10 @@
> >  #include <libcamera/base/class.h>
> >
> >  #include <libcamera/camera.h>
> > -#include <libcamera/framebuffer.h>
> >  #include <libcamera/geometry.h>
> >
> > +#include "hal_framebuffer.h"
> > +
> >  class CameraDevice;
> >
> >  class PlatformFrameBufferAllocator : libcamera::Extensible
> > @@ -31,7 +32,7 @@ public:
> >        * Note: The returned FrameBuffer needs to be destroyed before
> >        * PlatformFrameBufferAllocator is destroyed.
> >        */
> > -     std::unique_ptr<libcamera::FrameBuffer> allocate(
> > +     std::unique_ptr<HALFrameBuffer> allocate(
> >               int halPixelFormat, const libcamera::Size &size, uint32_t
> usage);
> >  };
> >
> > @@ -44,7 +45,7 @@
> PlatformFrameBufferAllocator::PlatformFrameBufferAllocator(         \
> >  PlatformFrameBufferAllocator::~PlatformFrameBufferAllocator()
>       \
> >  {                                                                    \
> >  }                                                                    \
> > -std::unique_ptr<libcamera::FrameBuffer>
>       \
> > +std::unique_ptr<HALFrameBuffer>                                      \
> >  PlatformFrameBufferAllocator::allocate(int halPixelFormat,           \
> >                                      const libcamera::Size &size,     \
> >                                      uint32_t usage)                  \
> > diff --git a/src/android/hal_framebuffer.cpp
> b/src/android/hal_framebuffer.cpp
> > new file mode 100644
> > index 00000000..4ac5a820
> > --- /dev/null
> > +++ b/src/android/hal_framebuffer.cpp
> > @@ -0,0 +1,22 @@
> > +/* SPDX-License-Identifier: LGPL-2.1-or-later */
> > +/*
> > + * Copyright (C) 2022, Google Inc.
> > + *
> > + * hal_framebuffer.cpp - Android Frame Buffer Handling
>
> s/Android/HAL/
>
> > + */
> > +
> > +#include "hal_framebuffer.h"
> > +
> > +#include <hardware/camera3.h>
> > +
> > +HALFrameBuffer::HALFrameBuffer(std::unique_ptr<Private> d,
> > +                            buffer_handle_t handle)
> > +     : FrameBuffer(std::move(d)), handle_(handle)
> > +{
> > +}
> > +
> > +HALFrameBuffer::HALFrameBuffer(const std::vector<Plane> &planes,
> > +                            buffer_handle_t handle)
> > +     : FrameBuffer(planes), handle_(handle)
> > +{
> > +}
> > diff --git a/src/android/hal_framebuffer.h
> b/src/android/hal_framebuffer.h
> > new file mode 100644
> > index 00000000..ec737e70
> > --- /dev/null
> > +++ b/src/android/hal_framebuffer.h
> > @@ -0,0 +1,26 @@
> > +/* SPDX-License-Identifier: LGPL-2.1-or-later */
> > +/*
> > + * Copyright (C) 2022, Google Inc.
> > + *
> > + * hal_framebuffer.h - Android Frame Buffer Handling
>
> s/Android/HAL/
>
> > + */
> > +
> > +#pragma once
> > +
> > +#include "libcamera/internal/framebuffer.h"
> > +
> > +#include <hardware/camera3.h>
> > +
> > +class HALFrameBuffer final : public libcamera::FrameBuffer
> > +{
> > +public:
> > +     HALFrameBuffer(std::unique_ptr<Private> d,
> > +                    buffer_handle_t handle);
> > +     HALFrameBuffer(const std::vector<Plane> &planes,
> > +                    buffer_handle_t handle);
> > +
> > +     buffer_handle_t handle() const { return handle_; }
> > +
> > +private:
> > +     buffer_handle_t handle_;
> > +};
> > diff --git a/src/android/meson.build b/src/android/meson.build
> > index 1bba54de..c2773f9e 100644
> > --- a/src/android/meson.build
> > +++ b/src/android/meson.build
> > @@ -37,6 +37,7 @@ endif
> >  android_deps += [libyuv_dep]
> >
> >  android_hal_sources = files([
> > +    'hal_framebuffer.cpp',
>
> Alphabetical order please.
>
> Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
>
> >      'camera3_hal.cpp',
> >      'camera_capabilities.cpp',
> >      'camera_device.cpp',
> > diff --git a/src/android/mm/cros_frame_buffer_allocator.cpp
> b/src/android/mm/cros_frame_buffer_allocator.cpp
> > index 0665c77b..0a5c59f2 100644
> > --- a/src/android/mm/cros_frame_buffer_allocator.cpp
> > +++ b/src/android/mm/cros_frame_buffer_allocator.cpp
> > @@ -16,6 +16,7 @@
> >
> >  #include "../camera_device.h"
> >  #include "../frame_buffer_allocator.h"
> > +#include "../hal_framebuffer.h"
> >  #include "cros-camera/camera_buffer_manager.h"
> >
> >  using namespace libcamera;
> > @@ -48,11 +49,11 @@ public:
> >       {
> >       }
> >
> > -     std::unique_ptr<libcamera::FrameBuffer>
> > +     std::unique_ptr<HALFrameBuffer>
> >       allocate(int halPixelFormat, const libcamera::Size &size, uint32_t
> usage);
> >  };
> >
> > -std::unique_ptr<libcamera::FrameBuffer>
> > +std::unique_ptr<HALFrameBuffer>
> >  PlatformFrameBufferAllocator::Private::allocate(int halPixelFormat,
> >                                               const libcamera::Size
> &size,
> >                                               uint32_t usage)
> > @@ -81,8 +82,8 @@ PlatformFrameBufferAllocator::Private::allocate(int
> halPixelFormat,
> >               plane.length =
> cros::CameraBufferManager::GetPlaneSize(handle, i);
> >       }
> >
> > -     return std::make_unique<FrameBuffer>(
> > -
>  std::make_unique<CrosFrameBufferData>(std::move(scopedHandle), planes));
> > +     return std::make_unique<HALFrameBuffer>(
> > +
>  std::make_unique<CrosFrameBufferData>(std::move(scopedHandle), planes),
> handle);
> >  }
> >
> >  PUBLIC_FRAME_BUFFER_ALLOCATOR_IMPLEMENTATION
> > diff --git a/src/android/mm/generic_frame_buffer_allocator.cpp
> b/src/android/mm/generic_frame_buffer_allocator.cpp
> > index 956623df..3750e1bf 100644
> > --- a/src/android/mm/generic_frame_buffer_allocator.cpp
> > +++ b/src/android/mm/generic_frame_buffer_allocator.cpp
> > @@ -20,6 +20,7 @@
> >
> >  #include "../camera_device.h"
> >  #include "../frame_buffer_allocator.h"
> > +#include "../hal_framebuffer.h"
> >
> >  using namespace libcamera;
> >
> > @@ -79,7 +80,7 @@ public:
> >
> >       ~Private() override;
> >
> > -     std::unique_ptr<libcamera::FrameBuffer>
> > +     std::unique_ptr<HALFrameBuffer>
> >       allocate(int halPixelFormat, const libcamera::Size &size, uint32_t
> usage);
> >
> >  private:
> > @@ -94,7 +95,7 @@ PlatformFrameBufferAllocator::Private::~Private()
> >               gralloc_close(allocDevice_);
> >  }
> >
> > -std::unique_ptr<libcamera::FrameBuffer>
> > +std::unique_ptr<HALFrameBuffer>
> >  PlatformFrameBufferAllocator::Private::allocate(int halPixelFormat,
> >                                               const libcamera::Size
> &size,
> >                                               uint32_t usage)
> > @@ -137,8 +138,10 @@ PlatformFrameBufferAllocator::Private::allocate(int
> halPixelFormat,
> >               offset += planeSize;
> >       }
> >
> > -     return std::make_unique<FrameBuffer>(
> > -             std::make_unique<GenericFrameBufferData>(allocDevice_,
> handle, planes));
> > +     return std::make_unique<HALFrameBuffer>(
> > +             std::make_unique<GenericFrameBufferData>(
> > +                     allocDevice_, handle, planes),
> > +             handle);
> >  }
> >
> >  PUBLIC_FRAME_BUFFER_ALLOCATOR_IMPLEMENTATION
>
> --
> Regards,
>
> Laurent Pinchart
>
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