| Age | Commit message (Collapse) | Author |
|---|
|
There are no users of the libipa::Matrix class anymore. Drop it.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
Use the Matrix class from libcamera/internal in the rkisp IPA so that
the libipa one can be dropped later.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
Use the Matrix class from libcamera/internal in libipa so that the one
from libipa can be dropped later.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
The RaspberryPi IPA contains a private Matrix3x3 class inside the ccm
algorithm. Replace it with the Matrix class available in
libcamera/internal.
While at it, mark the matrices RGB2Y and Y2RGB as static const.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Naushir Patuck <naush@raspberrypi.com>
|
|
Add the new Matrix class to the build.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
The Matrix constructor that takes a std::vector is meant and only used
to initialize a Matrix from an initializer list. Using a std::vector is
problematic for two reasons. First, it requires constructing a vector,
copying the data from the initializer list, which is an expensive
operation. Then, the vector size can't be verified at compile time,
making the constructor unsafe.
The first issue could be solved by replacing the vector with a
std::initializer_list or a Span. The second issue would require checking
the initializer list size with a static assertion, or restricting usage
of the constructor to fixed-extent spans. Unfortunately, even if the
size of initializer lists is always known at compile time, the
std::initializer_list::size() function is a compile-time constant only
for constant initializer lists. Using a span would work better, but
construction of a fixed extent span from an initializer list must be
explicit, making the API cumbersome.
We can solve all those issues by passing an std::array to the
constructor. Construction of an array from an initializer list can be
implicit and doesn't involve a copy, and the array size is a template
parameter and therefore guaranteed to be a compile-time constant.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
The Matrix class no longer lives inside lipipa. Move it into the
libcamera namespace to account for that.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
In preparation to moving the matrix implementation from libipa to
libcamera copy the corresponding files to the new location. The files
are copied without modification to make upcoming integration changes
easier to see. The new files are not included in the build and therefore
have no negative side effects on the build.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
The upcoming patches will introduce a Matrix class into
libcamera/internal. That name clashes with the Matrix class from the
RaspberryPi ccm implementation. Rename the rpi version to Matrix3x3 to
prevent the name clash. Matrix3x3 will be replaced by the generic
implementation later.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
The black level obtained from the tuning file in software ISP is
retrieved in init (because this is the standard algorithm method with
access to tuning data) and stored into context. But the context gets
reset in configure and the black level is lost and never applied.
Let's store the black level from the tuning file into an algorithm
instance variable and put it into the context only later in configure.
This is similar to what rkisp1 IPA does with the values obtained from
the tuning file.
Fixes: 41e3d61c745153779ed5a38634d7266bffd60d61 ("libcamera: software_isp: Clear IPA context on configure and stop")
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Robert Mader <robert.mader@collabora.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
In order to remove redundant camera ID lookups and comparisons switch
to pointer-based checks when choosing and switching cameras.
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
Now agc struct in IPAActiveState is not used any longer. If there
will be need to have this struct, this patch can be reverted.
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
On my setup, since commit fb8ad13d ("libcamera: software_isp: Move exposure+gain
to an algorithm module"), at start camera output stays very dark for dozen
of seconds, and then later slowly gets to normal. This is because existing
sensor exposure+gain settings are not used at start. We save initial
values in frameContext but in the agc algorithm we use IPA context.
Fix the problem by using in frameContext sensor values, since we already
use those in blc algorithm and change exposure type to int32_t to
unnecessary castings.
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Robert Mader <robert.mader@collabora.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
Provide the GalaxyCore gc08a3 camera sensor properties and registration
with libipa for the gain code helpers.
Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Co-developed-by: Xing Gu <xinggu@chromium.org>
Signed-off-by: Xing Gu <xinggu@chromium.org>
Co-developed-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Signed-off-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
Provide the GalaxyCore gc05a2 camera sensor properties and registration
with libipa for the gain code helpers.
Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Co-developed-by: Xing Gu <xinggu@chromium.org>
Signed-off-by: Xing Gu <xinggu@chromium.org>
Co-developed-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Signed-off-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
Add method to set thread affinity to Thread class.
Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
V4L2 Controls support a wide variety of types not yet supported by the
ControlValue type system.
Extend the libcamera ControlValue types to support an explicit 16 bit
unsigned integer type, and map that to the corresponding
V4L2_CTRL_TYPE_U16 type within the v4l2_device support class.
It's used on some camera metadata that is of length 16-bits,
for example JPEG metadata headers.
Signed-off-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
V4L2 Controls support a wide variety of types not yet supported by the
ControlValue type system.
Extend the libcamera ControlValue types to support an explicit 32 bit
unsigned integer type, and map that to the corresponding
V4L2_CTRL_TYPE_U32 type within the v4l2_device support class.
Signed-off-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
As there's an existing helper class DmaSyncer that makes synchronizing
DMABUFs more easily, this patch removes the self-defined function and
reuse DmaSyncer.
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
To synchronize CPU access with mmap and hardware access on DMA buffers,
using `DMA_BUF_IOCTL_SYNC` is required. This patch adds a function and
a helper class to allow users to sync buffers more easily.
Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
The documentation seems to suggest that to create a new M2M
execution context it is expected users to call V4L2M2MDevice::open()
multiple times on the same video device path.
It is instead expected that multiple instances of the class are
created, one for each required execution context.
Clarify it in the documentation of the V4L2M2MDevice class.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
Most of these have been found by the `performance-for-range-copy`
check of `clang-tidy`.
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
A copy is made in the range-based for loop, and thus all modifications
done in the for loop body are lost, and not actually applied to
the object in the container.
Fix that by taking a reference in the range-based for loop.
Fixes: 4217c9f1aa863c ("libcamera: camera: Zero streams before validate()")
Fixes: 613d5402673eb9 ("pipeline: raspberrypi: Fix handling of colour spaces")
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
Rather than hard coding default delays for control values in the
pipeline handlers, pick up the ones defined in the CameraSensor
properties.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
|
|
Add properties covering the sensor control application delays to both
the static CameraSensorProperties definitions. The values used are
taken from Raspberry Pi's CamHelper class definitions. Where no more
specific values are known the delay struct is defined as empty and
defaults supplied through the getter function.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
|
|
The RGB to YCbCr conversion matrix mentioned in a comment, coming from
the hardware documentation, does not match any of the canonical matrices
specified by any standard. While researching where the values came from,
it became apparent they are likely Bt.601 limited range coefficients
rounded to 6 bits of decimal precision. Record this in comments.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Replace the manual vector and matrix calculations with usage of the
Vector and Matrix classes. This simplifies the code and improves
readability.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Replace the manual storage of gains in the IPA active state and frame
context with usage of the RGB class. This simplifies the code thanks to
usage of the arithmetic functions provided by the RGB class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Replace the manual vector and matrix calculations with usage of the
Vector and Matrix classes. This simplifies the code and improves
readability.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
The rec601LuminanceFromRGB() and estimateCCT() functions take RGB
triplets as three variables. Replace them with instances of the RGB
class and adapt the users accordingly. Only variables passed directly to
these functions are converted to RGB instances, further conversion of
IPA modules to the RGB class will be performed separately.
While at it, fix a typo in the documentation of the estimateCCT()
function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Now that libipa has a generic RGB class, replaces the local
implementation from the IPU3 AWB algorithm.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Add a unit test to exercize the API of the ipa::Vector class.
The test binary being called 'vector', implicit includes cause the
binary to be picked by '#include <vector>', causing builds to fail. Set
implicit_include_directories to false to avoid this, as done in commit
6cd849125888 ("test: Don't add current build directory to include
path").
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Add a function to calculate the sum of a vector. It will be useful for
algorithms.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Add functions to calculate the element-wise minimum and maximum of two
vectors or of a vector and a scalar. This will be used in algorithm
implementations.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Extend the Vector class with compound assignment operators that match
the binary arithmetic operators.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
The Vector class defines multiple element-wise arithmetic operators
between vectors or between a vector and a scalar. A few variants are
missing. Add them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
Instead of hand-coding all arithmetic operators, implement them based on
a generic apply() function that takes an operator-specific binary
operators. This will simplify adding missing arithmetic operators.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
The Vector class defines a set of arithmetic operators between two
vectors or a vector and a scalar. All the operators perform element-wise
operations, except for the operator*() that computes the dot product.
This is inconsistent and confusing. Replace the operator with a dot()
function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
The default constructor leaves the vector data uninitialized. Add a
constructor to fill the vector with copies of a scalar value, and fix
the documentation of the default constructor.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
The Vector class can be useful to represent RGB pixel values. Add r(),
g() and b() accessors, similar to x(), y() and z(), along with an RGB
type that aliases Vector<T, 3>.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
The x(), y() and z() functions of the Vector class are convenience
accessors for the first, second and third element of the vector
respectively, meant to improve readability of class users when a vector
represents coordinates in 1D, 2D or 3D space. Those accessors are
limited to immutable access to the vector elements, as they return a
copy. Extend the API with mutable accessors.
The immutable accessors are modified to return a reference to the vector
elements instead of a copy for consistency. As they are inline
functions, this should make no difference in terms of performance as the
compiler can perform the same optimizations in their case.
While at it, reorder functions to declare operators before other member
functions, to be consistent with the usual coding style.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
|
|
The terms "shutter" and "shutter speed" are used through libcamera to
mean "exposure time". This is confusing, both due to "speed" being used
as "time" while it should be the inverse (i.e. a maximum speed should
correspond to the minimum time), and due to "shutter speed" and
"exposure time" being used in different places with the same meaning.
To improve clarity of the code base and the documentation, use "exposure
time" consistently to replace "shutter speed".
This rename highlighted another vocabulary issue in libcamera. The
ExposureModeHelper::splitExposure() function used to document that it
splits "exposure time into shutter time and gain". It has been reworded
to "split exposure into exposure time and gain". That is not entirely
satisfactory, as "exposure" has a defined meaning in photography (see
https://en.wikipedia.org/wiki/Exposure_(photography)) that is not
expressed as a duration. This issue if left to be addressed separately.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
Before commit eeaa7de21b8c ("libcamera: pipeline: Add test pattern for
VirtualPipelineHandler") the libyuv dependency was only needed for the
Android adaptation layer. As libyuv isn't packaged by most distribution,
meson fell back to using a meson wrap if the Android adaptation layer
was enabled and the library wasn't found.
With commit eeaa7de21b8c, libyuv is also used by the virtual pipeline
handler, and the meson wrap fallback handling got centralized and became
unconditional, so the wrap is downloaded even if the components
depending on libyuv are all disabled. This causes unnecessary downloads
at setup time, which can be problematic on build systems without an
internet connection.
Fix this by making the wrap fallback conditional on the components that
use libyuv.
Fixes: eeaa7de21b8c ("libcamera: pipeline: Add test pattern for VirtualPipelineHandler")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
|
|
Add python bindings for querying whether or not a ControlId is an array
type, and the size.
Example usage:
>>> cid
libcamera.ControlId(28, FrameDurationLimits[2], ControlType.Integer64)
>>> cid.isArray
True
>>> cid.size
2
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
Report the default sensor black level reported by the datasheet.
Note that IMX327 and IMX462 depend on the IMX290 CameraSensorHelper.
That's fine since those sensors report the same defaults for the
black level as the Sony IMX290.
Signed-off-by: Geoffrey Van Landeghem <geoffrey.vl@gmail.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
|
|
Add a default tuning file for Sony IMX327 sensor. This tuning file
is a copy of the IMX290 and is added to make the IMX327 sensor
just work without hassle. Note the extra description field to
clarify this is just an interim tuning file untill someone
provides a proper one.
Signed-off-by: Geoffrey Van Landeghem <geoffrey.vl@gmail.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
|
|
Add a default tuning file for Sony IMX462 sensor. This tuning file
is a copy of the IMX290 and is added to make the IMX462 sensor
just work without hassle. Note the extra description field to
clarify this is just an interim tuning file untill someone
provides a proper one.
Signed-off-by: Geoffrey Van Landeghem <geoffrey.vl@gmail.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
|
|
The IMX327 sensor is largely compatible with the already supported
Sony IMX290 so we can reuse the same helpers for the analogue gain
conversion functions.
Signed-off-by: Geoffrey Van Landeghem <geoffrey.vl@gmail.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
|
|
The sensor is largely compatible with the already supported
Sony IMX290 so we can reuse the same helpers for the analogue
gain conversion functions.
Signed-off-by: Geoffrey Van Landeghem <geoffrey.vl@gmail.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
|
|
Some IPA modules, like the RkISP1 one, call FCQueue::get(0) at
IPA::start() time, before any frame context has been allocated with
FCQueue::alloc() called at queueRequest() time.
The FCQueue implementation aims to detect when a FrameContext is get()
before it is alloc()-ated, Warns about it, and initializes the
FrameContext before returning it.
In case of frame#0, a get() preceding an alloc() call is not detected
as the "frame == frameContext.frame" test returns success, as
FrameContexts are zeroed by default.
As a result, the first returned FrameContext is not initialized.
Explicitly test for frame#0 to make sure the FrameContext is initialized
if get(0) is called before alloc(0). To avoid re-initializing a frame
context, in case alloc() has been called correctly before get(),
introduce an "initialised" state variable that tracks the FrameContext
initialisation state.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
|
