diff options
Diffstat (limited to 'src/ipa/ipu3')
| -rw-r--r-- | src/ipa/ipu3/ipa_context.cpp | 136 | ||||
| -rw-r--r-- | src/ipa/ipu3/ipu3.cpp | 124 | ||||
| -rw-r--r-- | src/ipa/ipu3/meson.build | 1 |
3 files changed, 137 insertions, 124 deletions
diff --git a/src/ipa/ipu3/ipa_context.cpp b/src/ipa/ipu3/ipa_context.cpp new file mode 100644 index 00000000..94a5f7f6 --- /dev/null +++ b/src/ipa/ipu3/ipa_context.cpp @@ -0,0 +1,136 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2021, Google Inc. + * + * ipa_context.cpp - IPU3 IPA Context + */ + +#include "ipa_context.h" + +/** + * \file ipa_context.h + * \brief Context and state information shared between the algorithms + */ + +namespace libcamera::ipa::ipu3 { + +/** + * \struct IPASessionConfiguration + * \brief Session configuration for the IPA module + * + * The session configuration contains all IPA configuration parameters that + * remain constant during the capture session, from IPA module start to stop. + * It is typically set during the configure() operation of the IPA module, but + * may also be updated in the start() operation. + */ + +/** + * \struct IPAFrameContext + * \brief Per-frame context for algorithms + * + * The frame context stores data specific to a single frame processed by the + * IPA. Each frame processed by the IPA has a context associated with it, + * accessible through the IPAContext structure. + * + * \todo Detail how to access contexts for a particular frame + * + * Each of the fields in the frame context belongs to either a specific + * algorithm, or to the top-level IPA module. A field may be read by any + * algorithm, but should only be written by its owner. + */ + +/** + * \struct IPAContext + * \brief Global IPA context data shared between all algorithms + * + * \var IPAContext::configuration + * \brief The IPA session configuration, immutable during the session + * + * \var IPAContext::frameContext + * \brief The frame context for the frame being processed + * + * \todo While the frame context is supposed to be per-frame, this + * single frame context stores data related to both the current frame + * and the previous frames, with fields being updated as the algorithms + * are run. This needs to be turned into real per-frame data storage. + */ + +/** + * \struct IPASessionConfiguration::grid + * \brief Grid configuration of the IPA + * + * \var IPASessionConfiguration::grid::bdsGrid + * \brief Bayer Down Scaler grid plane config used by the kernel + * + * \var IPASessionConfiguration::grid::bdsOutputSize + * \brief BDS output size configured by the pipeline handler + * + * \var IPASessionConfiguration::grid::stride + * \brief Number of cells on one line including the ImgU padding + */ + +/** + * \struct IPASessionConfiguration::agc + * \brief AGC parameters configuration of the IPA + * + * \var IPASessionConfiguration::agc::minShutterSpeed + * \brief Minimum shutter speed supported with the configured sensor + * + * \var IPASessionConfiguration::grid::maxShutterSpeed + * \brief Maximum shutter speed supported with the configured sensor + * + * \var IPASessionConfiguration::grid::minAnalogueGain + * \brief Minimum analogue gain supported with the configured sensor + * + * \var IPASessionConfiguration::grid::maxAnalogueGain + * \brief Maximum analogue gain supported with the configured sensor + */ + +/** + * \struct IPAFrameContext::agc + * \brief Context for the Automatic Gain Control algorithm + * + * The exposure and gain determined are expected to be applied to the sensor + * at the earliest opportunity. + * + * \var IPAFrameContext::agc::exposure + * \brief Exposure time expressed as a number of lines + * + * \var IPAFrameContext::agc::gain + * \brief Analogue gain multiplier + * + * The gain should be adapted to the sensor specific gain code before applying. + */ + +/** + * \struct IPAFrameContext::awb + * \brief Context for the Automatic White Balance algorithm + * + * \struct IPAFrameContext::awb::gains + * \brief White balance gains + * + * \var IPAFrameContext::awb::gains::red + * \brief White balance gain for R channel + * + * \var IPAFrameContext::awb::gains::green + * \brief White balance gain for G channel + * + * \var IPAFrameContext::awb::gains::blue + * \brief White balance gain for B channel + */ + +/** + * \struct IPAFrameContext::toneMapping + * \brief Context for ToneMapping and Gamma control + * + * \var IPAFrameContext::toneMapping::gamma + * \brief Gamma value for the LUT + * + * \var IPAFrameContext::toneMapping::gammaCorrection + * \brief Per-pixel tone mapping implemented as a LUT + * + * The LUT structure is defined by the IPU3 kernel interface. See + * <linux/intel-ipu3.h> struct ipu3_uapi_gamma_corr_lut for further details. + */ + +} /* namespace libcamera::ipa::ipu3 */ diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp index 4c0fff00..a10fdd4a 100644 --- a/src/ipa/ipu3/ipu3.cpp +++ b/src/ipa/ipu3/ipu3.cpp @@ -37,130 +37,6 @@ #include "algorithms/tone_mapping.h" #include "libipa/camera_sensor_helper.h" -/** - * \file ipa_context.h - * \brief Context and state information shared between the algorithms - */ - -/** - * \struct IPASessionConfiguration - * \brief Session configuration for the IPA module - * - * The session configuration contains all IPA configuration parameters that - * remain constant during the capture session, from IPA module start to stop. - * It is typically set during the configure() operation of the IPA module, but - * may also be updated in the start() operation. - */ - -/** - * \struct IPAFrameContext - * \brief Per-frame context for algorithms - * - * The frame context stores data specific to a single frame processed by the - * IPA. Each frame processed by the IPA has a context associated with it, - * accessible through the IPAContext structure. - * - * \todo Detail how to access contexts for a particular frame - * - * Each of the fields in the frame context belongs to either a specific - * algorithm, or to the top-level IPA module. A field may be read by any - * algorithm, but should only be written by its owner. - */ - -/** - * \struct IPAContext - * \brief Global IPA context data shared between all algorithms - * - * \var IPAContext::configuration - * \brief The IPA session configuration, immutable during the session - * - * \var IPAContext::frameContext - * \brief The frame context for the frame being processed - * - * \todo While the frame context is supposed to be per-frame, this - * single frame context stores data related to both the current frame - * and the previous frames, with fields being updated as the algorithms - * are run. This needs to be turned into real per-frame data storage. - */ - -/** - * \struct IPASessionConfiguration::grid - * \brief Grid configuration of the IPA - * - * \var IPASessionConfiguration::grid::bdsGrid - * \brief Bayer Down Scaler grid plane config used by the kernel - * - * \var IPASessionConfiguration::grid::bdsOutputSize - * \brief BDS output size configured by the pipeline handler - * - * \var IPASessionConfiguration::grid::stride - * \brief Number of cells on one line including the ImgU padding - */ - -/** - * \struct IPASessionConfiguration::agc - * \brief AGC parameters configuration of the IPA - * - * \var IPASessionConfiguration::agc::minShutterSpeed - * \brief Minimum shutter speed supported with the configured sensor - * - * \var IPASessionConfiguration::grid::maxShutterSpeed - * \brief Maximum shutter speed supported with the configured sensor - * - * \var IPASessionConfiguration::grid::minAnalogueGain - * \brief Minimum analogue gain supported with the configured sensor - * - * \var IPASessionConfiguration::grid::maxAnalogueGain - * \brief Maximum analogue gain supported with the configured sensor - */ - -/** - * \struct IPAFrameContext::agc - * \brief Context for the Automatic Gain Control algorithm - * - * The exposure and gain determined are expected to be applied to the sensor - * at the earliest opportunity. - * - * \var IPAFrameContext::agc::exposure - * \brief Exposure time expressed as a number of lines - * - * \var IPAFrameContext::agc::gain - * \brief Analogue gain multiplier - * - * The gain should be adapted to the sensor specific gain code before applying. - */ - -/** - * \struct IPAFrameContext::awb - * \brief Context for the Automatic White Balance algorithm - * - * \struct IPAFrameContext::awb::gains - * \brief White balance gains - * - * \var IPAFrameContext::awb::gains::red - * \brief White balance gain for R channel - * - * \var IPAFrameContext::awb::gains::green - * \brief White balance gain for G channel - * - * \var IPAFrameContext::awb::gains::blue - * \brief White balance gain for B channel - */ - -/** - * \struct IPAFrameContext::toneMapping - * \brief Context for ToneMapping and Gamma control - * - * \var IPAFrameContext::toneMapping::gamma - * \brief Gamma value for the LUT - * - * \var IPAFrameContext::toneMapping::gammaCorrection - * \brief Per-pixel tone mapping implemented as a LUT - * - * The LUT structure is defined by the IPU3 kernel interface. See - * <linux/intel-ipu3.h> struct ipu3_uapi_gamma_corr_lut for further details. - */ - /* Minimum grid width, expressed as a number of cells */ static constexpr uint32_t kMinGridWidth = 16; /* Maximum grid width, expressed as a number of cells */ diff --git a/src/ipa/ipu3/meson.build b/src/ipa/ipu3/meson.build index 39320980..3194111a 100644 --- a/src/ipa/ipu3/meson.build +++ b/src/ipa/ipu3/meson.build @@ -5,6 +5,7 @@ subdir('algorithms') ipa_name = 'ipa_ipu3' ipu3_ipa_sources = files([ + 'ipa_context.cpp', 'ipu3.cpp', ]) |