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-rw-r--r--src/android/camera_buffer.h14
-rw-r--r--src/android/camera_stream.cpp4
-rw-r--r--src/android/mm/cros_camera_buffer.cpp7
-rw-r--r--src/android/mm/generic_camera_buffer.cpp103
4 files changed, 100 insertions, 28 deletions
diff --git a/src/android/camera_buffer.h b/src/android/camera_buffer.h
index c4e3a9e7..87df2570 100644
--- a/src/android/camera_buffer.h
+++ b/src/android/camera_buffer.h
@@ -11,13 +11,17 @@
#include <libcamera/base/class.h>
#include <libcamera/base/span.h>
+#include <libcamera/geometry.h>
+#include <libcamera/pixel_format.h>
class CameraBuffer final : public libcamera::Extensible
{
LIBCAMERA_DECLARE_PRIVATE()
public:
- CameraBuffer(buffer_handle_t camera3Buffer, int flags);
+ CameraBuffer(buffer_handle_t camera3Buffer,
+ libcamera::PixelFormat pixelFormat,
+ const libcamera::Size &size, int flags);
~CameraBuffer();
bool isValid() const;
@@ -31,8 +35,12 @@ public:
};
#define PUBLIC_CAMERA_BUFFER_IMPLEMENTATION \
-CameraBuffer::CameraBuffer(buffer_handle_t camera3Buffer, int flags) \
- : Extensible(std::make_unique<Private>(this, camera3Buffer, flags)) \
+CameraBuffer::CameraBuffer(buffer_handle_t camera3Buffer, \
+ libcamera::PixelFormat pixelFormat, \
+ const libcamera::Size &size, int flags) \
+ : Extensible(std::make_unique<Private>(this, camera3Buffer, \
+ pixelFormat, size, \
+ flags)) \
{ \
} \
CameraBuffer::~CameraBuffer() \
diff --git a/src/android/camera_stream.cpp b/src/android/camera_stream.cpp
index 61b44183..01909ec7 100644
--- a/src/android/camera_stream.cpp
+++ b/src/android/camera_stream.cpp
@@ -110,7 +110,9 @@ int CameraStream::process(const libcamera::FrameBuffer &source,
* \todo Buffer mapping and processing should be moved to a
* separate thread.
*/
- CameraBuffer dest(camera3Dest, PROT_READ | PROT_WRITE);
+ const StreamConfiguration &output = configuration();
+ CameraBuffer dest(camera3Dest, formats::MJPEG, output.size,
+ PROT_READ | PROT_WRITE);
if (!dest.isValid()) {
LOG(HAL, Error) << "Failed to map android blob buffer";
return -EINVAL;
diff --git a/src/android/mm/cros_camera_buffer.cpp b/src/android/mm/cros_camera_buffer.cpp
index e8783ff8..50732637 100644
--- a/src/android/mm/cros_camera_buffer.cpp
+++ b/src/android/mm/cros_camera_buffer.cpp
@@ -20,8 +20,9 @@ class CameraBuffer::Private : public Extensible::Private
LIBCAMERA_DECLARE_PUBLIC(CameraBuffer)
public:
- Private(CameraBuffer *cameraBuffer,
- buffer_handle_t camera3Buffer, int flags);
+ Private(CameraBuffer *cameraBuffer, buffer_handle_t camera3Buffer,
+ libcamera::PixelFormat pixelFormat, const libcamera::Size &size,
+ int flags);
~Private();
bool isValid() const { return valid_; }
@@ -46,6 +47,8 @@ private:
CameraBuffer::Private::Private([[maybe_unused]] CameraBuffer *cameraBuffer,
buffer_handle_t camera3Buffer,
+ [[maybe_unused]] libcamera::PixelFormat pixelFormat,
+ [[maybe_unused]] const libcamera::Size &size,
[[maybe_unused]] int flags)
: handle_(camera3Buffer), numPlanes_(0), valid_(false),
registered_(false)
diff --git a/src/android/mm/generic_camera_buffer.cpp b/src/android/mm/generic_camera_buffer.cpp
index b3af194c..22753490 100644
--- a/src/android/mm/generic_camera_buffer.cpp
+++ b/src/android/mm/generic_camera_buffer.cpp
@@ -12,6 +12,7 @@
#include <libcamera/base/log.h>
+#include "libcamera/internal/formats.h"
#include "libcamera/internal/mapped_framebuffer.h"
using namespace libcamera;
@@ -24,8 +25,9 @@ class CameraBuffer::Private : public Extensible::Private,
LIBCAMERA_DECLARE_PUBLIC(CameraBuffer)
public:
- Private(CameraBuffer *cameraBuffer,
- buffer_handle_t camera3Buffer, int flags);
+ Private(CameraBuffer *cameraBuffer, buffer_handle_t camera3Buffer,
+ libcamera::PixelFormat pixelFormat, const libcamera::Size &size,
+ int flags);
~Private();
unsigned int numPlanes() const;
@@ -33,35 +35,92 @@ public:
Span<uint8_t> plane(unsigned int plane);
size_t jpegBufferSize(size_t maxJpegBufferSize) const;
+
+private:
+ /* \todo Remove planes_ when it will be added to MappedBuffer */
+ std::vector<Span<uint8_t>> planes_;
};
CameraBuffer::Private::Private([[maybe_unused]] CameraBuffer *cameraBuffer,
- buffer_handle_t camera3Buffer, int flags)
+ buffer_handle_t camera3Buffer,
+ libcamera::PixelFormat pixelFormat,
+ const libcamera::Size &size, int flags)
{
- maps_.reserve(camera3Buffer->numFds);
error_ = 0;
+ const auto &info = libcamera::PixelFormatInfo::info(pixelFormat);
+ if (!info.isValid()) {
+ error_ = -EINVAL;
+ LOG(HAL, Error) << "Invalid pixel format: "
+ << pixelFormat.toString();
+ return;
+ }
+
+ /*
+ * As Android doesn't offer an API to query buffer layouts, assume for
+ * now that the buffer is backed by a single dmabuf, with planes being
+ * stored contiguously.
+ */
+ int fd = -1;
for (int i = 0; i < camera3Buffer->numFds; i++) {
- if (camera3Buffer->data[i] == -1)
+ if (camera3Buffer->data[i] == -1 || camera3Buffer->data[i] == fd)
continue;
- off_t length = lseek(camera3Buffer->data[i], 0, SEEK_END);
- if (length < 0) {
- error_ = -errno;
- LOG(HAL, Error) << "Failed to query plane length";
- break;
+ if (fd != -1) {
+ error_ = -EINVAL;
+ LOG(HAL, Error) << "Discontiguous planes are not supported";
+ return;
}
- void *address = mmap(nullptr, length, flags, MAP_SHARED,
- camera3Buffer->data[i], 0);
- if (address == MAP_FAILED) {
- error_ = -errno;
- LOG(HAL, Error) << "Failed to mmap plane";
- break;
- }
+ fd = camera3Buffer->data[i];
+ }
- maps_.emplace_back(static_cast<uint8_t *>(address),
- static_cast<size_t>(length));
+ if (fd == -1) {
+ error_ = -EINVAL;
+ LOG(HAL, Error) << "No valid file descriptor";
+ return;
+ }
+
+ off_t bufferLength = lseek(fd, 0, SEEK_END);
+ if (bufferLength < 0) {
+ error_ = -errno;
+ LOG(HAL, Error) << "Failed to get buffer length";
+ return;
+ }
+
+ void *address = mmap(nullptr, bufferLength, flags, MAP_SHARED, fd, 0);
+ if (address == MAP_FAILED) {
+ error_ = -errno;
+ LOG(HAL, Error) << "Failed to mmap plane";
+ return;
+ }
+ maps_.emplace_back(static_cast<uint8_t *>(address), bufferLength);
+
+ const unsigned int numPlanes = info.numPlanes();
+ planes_.resize(numPlanes);
+ unsigned int offset = 0;
+ for (unsigned int i = 0; i < numPlanes; ++i) {
+ /*
+ * \todo Remove if this plane size computation function is
+ * added to PixelFormatInfo.
+ */
+ const unsigned int vertSubSample = info.planes[i].verticalSubSampling;
+ const unsigned int stride = info.stride(size.width, i, 1u);
+ const unsigned int planeSize =
+ stride * ((size.height + vertSubSample - 1) / vertSubSample);
+
+ planes_[i] = libcamera::Span<uint8_t>(
+ static_cast<uint8_t *>(address) + offset, planeSize);
+
+ if (bufferLength < offset + planeSize) {
+ error_ = -EINVAL;
+ LOG(HAL, Error) << "Plane " << i << " is out of buffer"
+ << ", buffer length=" << bufferLength
+ << ", offset=" << offset
+ << ", size=" << planeSize;
+ return;
+ }
+ offset += planeSize;
}
}
@@ -71,15 +130,15 @@ CameraBuffer::Private::~Private()
unsigned int CameraBuffer::Private::numPlanes() const
{
- return maps_.size();
+ return planes_.size();
}
Span<uint8_t> CameraBuffer::Private::plane(unsigned int plane)
{
- if (plane >= maps_.size())
+ if (plane >= planes_.size())
return {};
- return maps_[plane];
+ return planes_[plane];
}
size_t CameraBuffer::Private::jpegBufferSize(size_t maxJpegBufferSize) const
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-26 18:53:40 +0000