pipeline: ipa: raspberrypi: Refactor and move the Raspberry Pi code

Split the Raspberry Pi pipeline handler and IPA source code into common
and VC4/BCM2835 specific file structures.

For the pipeline handler, the common code files now live in
src/libcamera/pipeline/rpi/common/
and the VC4-specific files in src/libcamera/pipeline/rpi/vc4/.

For the IPA, the common code files now live in
src/ipa/rpi/{cam_helper,controller}/
and the vc4 specific files in src/ipa/rpi/vc4/. With this change, the
camera tuning files are now installed under share/libcamera/ipa/rpi/vc4/.

To build the pipeline and IPA, the meson configuration options have now
changed from "raspberrypi" to "rpi/vc4":

meson setup build -Dipas=rpi/vc4 -Dpipelines=rpi/vc4

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 459 insertions, 0 deletions

diff --git a/src/ipa/rpi/vc4/data/imx708_wide.json b/src/ipa/rpi/vc4/data/imx708_wide.json
new file mode 100644
index 00000000..b772efee
--- /dev/null
+++ b/src/ipa/rpi/vc4/data/imx708_wide.json
@@ -0,0 +1,459 @@
+{
+    "version": 2.0,
+    "target": "bcm2835",
+    "algorithms": [
+        {
+            "rpi.black_level":
+            {
+                "black_level": 4096
+            }
+        },
+        {
+            "rpi.dpc": { }
+        },
+        {
+            "rpi.lux":
+            {
+                "reference_shutter_speed": 9989,
+                "reference_gain": 1.23,
+                "reference_aperture": 1.0,
+                "reference_lux": 980,
+                "reference_Y": 8345
+            }
+        },
+        {
+            "rpi.noise":
+            {
+                "reference_constant": 16.0,
+                "reference_slope": 4.0
+            }
+        },
+        {
+            "rpi.geq":
+            {
+                "offset": 215,
+                "slope": 0.00287
+            }
+        },
+        {
+            "rpi.sdn": { }
+        },
+        {
+            "rpi.awb":
+            {
+                "priors": [
+                    {
+                        "lux": 0,
+                        "prior":
+                        [
+                            2000, 1.0,
+                            3000, 0.0,
+                            13000, 0.0
+                        ]
+                    },
+                    {
+                        "lux": 800,
+                        "prior":
+                        [
+                            2000, 0.0,
+                            6000, 2.0,
+                            13000, 2.0
+                        ]
+                    },
+                    {
+                        "lux": 1500,
+                        "prior":
+                        [
+                            2000, 0.0,
+                            4000, 1.0,
+                            6000, 6.0,
+                            6500, 7.0,
+                            7000, 1.0,
+                            13000, 1.0
+                        ]
+                    }
+                ],
+                "modes":
+                {
+                    "auto":
+                    {
+                        "lo": 2500,
+                        "hi": 8000
+                    },
+                    "incandescent":
+                    {
+                        "lo": 2500,
+                        "hi": 3000
+                    },
+                    "tungsten":
+                    {
+                        "lo": 3000,
+                        "hi": 3500
+                    },
+                    "fluorescent":
+                    {
+                        "lo": 4000,
+                        "hi": 4700
+                    },
+                    "indoor":
+                    {
+                        "lo": 3000,
+                        "hi": 5000
+                    },
+                    "daylight":
+                    {
+                        "lo": 5500,
+                        "hi": 6500
+                    },
+                    "cloudy":
+                    {
+                        "lo": 7000,
+                        "hi": 8600
+                    }
+                },
+                "bayes": 1,
+                "ct_curve":
+                [
+                    2750.0, 0.7881, 0.2849,
+                    2940.0, 0.7559, 0.3103,
+                    3650.0, 0.6291, 0.4206,
+                    4625.0, 0.5336, 0.5161,
+                    5715.0, 0.4668, 0.5898
+                ],
+                "sensitivity_r": 1.05,
+                "sensitivity_b": 1.05,
+                "transverse_pos": 0.01165,
+                "transverse_neg": 0.01601
+            }
+        },
+        {
+            "rpi.agc":
+            {
+                "metering_modes":
+                {
+                    "centre-weighted":
+                    {
+                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
+                    },
+                    "spot":
+                    {
+                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
+                    },
+                    "matrix":
+                    {
+                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
+                    }
+                },
+                "exposure_modes":
+                {
+                    "normal":
+                    {
+                        "shutter": [ 100, 15000, 30000, 60000, 120000 ],
+                        "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
+                    },
+                    "short":
+                    {
+                        "shutter": [ 100, 5000, 10000, 20000, 120000 ],
+                        "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
+                    }
+                },
+                "constraint_modes":
+                {
+                    "normal": [
+                        {
+                            "bound": "LOWER",
+                            "q_lo": 0.98,
+                            "q_hi": 1.0,
+                            "y_target":
+                            [
+                                0, 0.2,
+                                1000, 0.2
+                            ]
+                        }
+                    ],
+                    "highlight": [
+                        {
+                            "bound": "LOWER",
+                            "q_lo": 0.98,
+                            "q_hi": 1.0,
+                            "y_target":
+                            [
+                                0, 0.2,
+                                1000, 0.2
+                            ]
+                        },
+                        {
+                            "bound": "UPPER",
+                            "q_lo": 0.98,
+                            "q_hi": 1.0,
+                            "y_target":
+                            [
+                                0, 0.8,
+                                1000, 0.8
+                            ]
+                        }
+                    ]
+                },
+                "y_target":
+                [
+                    0, 0.16,
+                    1000, 0.165,
+                    10000, 0.17
+                ],
+                "startup_frames": 5,
+                "convergence_frames": 6,
+                "speed": 0.15
+            }
+        },
+        {
+            "rpi.alsc":
+            {
+                "omega": 1.3,
+                "n_iter": 100,
+                "luminance_strength": 0.5,
+                "calibrations_Cr": [
+                    {
+                        "ct": 3000,
+                        "table":
+                        [
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+                            1.527, 1.523, 1.511, 1.491, 1.474, 1.459, 1.445, 1.441, 1.441, 1.446, 1.461, 1.479, 1.499, 1.521, 1.536, 1.541,
+                            1.524, 1.515, 1.498, 1.477, 1.459, 1.444, 1.431, 1.426, 1.426, 1.435, 1.446, 1.466, 1.487, 1.507, 1.528, 1.538,
+                            1.522, 1.512, 1.491, 1.468, 1.447, 1.431, 1.423, 1.417, 1.418, 1.425, 1.435, 1.455, 1.479, 1.499, 1.523, 1.537,
+                            1.522, 1.509, 1.485, 1.463, 1.441, 1.423, 1.416, 1.413, 1.415, 1.418, 1.429, 1.449, 1.473, 1.495, 1.521, 1.538,
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+                        ]
+                    },
+                    {
+                        "ct": 5000,
+                        "table":
+                        [
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+                            2.596, 2.591, 2.571, 2.542, 2.516, 2.489, 2.464, 2.458, 2.458, 2.469, 2.492, 2.518, 2.547, 2.576, 2.602, 2.614,
+                            2.591, 2.576, 2.546, 2.519, 2.489, 2.464, 2.437, 2.427, 2.427, 2.441, 2.467, 2.492, 2.525, 2.553, 2.586, 2.605,
+                            2.588, 2.568, 2.534, 2.503, 2.472, 2.437, 2.423, 2.409, 2.411, 2.425, 2.441, 2.475, 2.513, 2.541, 2.577, 2.602,
+                            2.588, 2.565, 2.527, 2.494, 2.461, 2.425, 2.409, 2.399, 2.403, 2.409, 2.431, 2.466, 2.503, 2.534, 2.571, 2.601,
+                            2.586, 2.561, 2.525, 2.491, 2.454, 2.418, 2.399, 2.396, 2.395, 2.402, 2.424, 2.461, 2.501, 2.531, 2.567, 2.599,
+                            2.583, 2.559, 2.525, 2.491, 2.454, 2.418, 2.398, 2.393, 2.393, 2.401, 2.423, 2.459, 2.498, 2.531, 2.566, 2.597,
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+                            2.583, 2.563, 2.531, 2.501, 2.469, 2.435, 2.419, 2.405, 2.404, 2.422, 2.435, 2.471, 2.505, 2.537, 2.572, 2.596,
+                            2.585, 2.571, 2.539, 2.516, 2.486, 2.458, 2.435, 2.424, 2.424, 2.435, 2.459, 2.489, 2.521, 2.546, 2.579, 2.601,
+                            2.589, 2.578, 2.557, 2.532, 2.506, 2.483, 2.458, 2.449, 2.449, 2.459, 2.485, 2.507, 2.535, 2.563, 2.591, 2.605,
+                            2.589, 2.586, 2.575, 2.551, 2.525, 2.503, 2.481, 2.476, 2.476, 2.481, 2.504, 2.526, 2.555, 2.583, 2.604, 2.611
+                        ]
+                    }
+                ],
+                "calibrations_Cb": [
+                    {
+                        "ct": 3000,
+                        "table":
+                        [
+                            3.311, 3.339, 3.369, 3.374, 3.371, 3.363, 3.356, 3.353, 3.353, 3.353, 3.357, 3.362, 3.362, 3.356, 3.328, 3.311,
+                            3.321, 3.354, 3.374, 3.374, 3.368, 3.359, 3.352, 3.349, 3.347, 3.347, 3.349, 3.357, 3.361, 3.359, 3.343, 3.324,
+                            3.334, 3.368, 3.375, 3.374, 3.365, 3.356, 3.349, 3.347, 3.346, 3.346, 3.347, 3.349, 3.358, 3.361, 3.357, 3.336,
+                            3.346, 3.378, 3.378, 3.369, 3.363, 3.358, 3.351, 3.348, 3.347, 3.346, 3.347, 3.348, 3.354, 3.364, 3.363, 3.345,
+                            3.351, 3.381, 3.381, 3.368, 3.361, 3.357, 3.349, 3.347, 3.347, 3.345, 3.345, 3.347, 3.353, 3.364, 3.364, 3.347,
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+                            3.353, 3.376, 3.376, 3.363, 3.351, 3.347, 3.343, 3.338, 3.336, 3.338, 3.339, 3.343, 3.351, 3.361, 3.361, 3.347,
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+                        ]
+                    },
+                    {
+                        "ct": 5000,
+                        "table":
+                        [
+                            1.634, 1.647, 1.665, 1.668, 1.668, 1.664, 1.662, 1.662, 1.661, 1.661, 1.661, 1.663, 1.663, 1.659, 1.643, 1.636,
+                            1.639, 1.656, 1.668, 1.669, 1.668, 1.666, 1.664, 1.663, 1.663, 1.661, 1.661, 1.662, 1.663, 1.662, 1.654, 1.642,
+                            1.645, 1.663, 1.669, 1.668, 1.667, 1.667, 1.667, 1.668, 1.668, 1.665, 1.662, 1.661, 1.662, 1.664, 1.661, 1.649,
+                            1.651, 1.669, 1.669, 1.667, 1.666, 1.668, 1.669, 1.672, 1.672, 1.668, 1.665, 1.661, 1.661, 1.665, 1.665, 1.655,
+                            1.654, 1.669, 1.669, 1.666, 1.666, 1.669, 1.672, 1.673, 1.673, 1.671, 1.666, 1.661, 1.661, 1.665, 1.665, 1.659,
+                            1.654, 1.669, 1.669, 1.666, 1.666, 1.669, 1.671, 1.673, 1.672, 1.669, 1.667, 1.661, 1.661, 1.665, 1.665, 1.659,
+                            1.654, 1.668, 1.668, 1.664, 1.663, 1.667, 1.669, 1.671, 1.669, 1.668, 1.665, 1.661, 1.661, 1.663, 1.663, 1.659,
+                            1.653, 1.665, 1.665, 1.661, 1.661, 1.664, 1.667, 1.668, 1.668, 1.665, 1.661, 1.658, 1.659, 1.662, 1.662, 1.657,
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+                            1.635, 1.645, 1.661, 1.661, 1.661, 1.655, 1.653, 1.649, 1.648, 1.647, 1.651, 1.653, 1.657, 1.657, 1.646, 1.638
+                        ]
+                    }
+                ],
+                "luminance_lut":
+                [
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+                    3.379, 3.157, 2.874, 2.421, 1.973, 1.735, 1.472, 1.388, 1.388, 1.471, 1.724, 1.963, 2.409, 2.877, 3.185, 3.416,
+                    3.288, 3.075, 2.696, 2.169, 1.735, 1.472, 1.311, 1.208, 1.208, 1.306, 1.471, 1.724, 2.159, 2.695, 3.092, 3.321,
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+                ],
+                "sigma": 0.00195,
+                "sigma_Cb": 0.00241
+            }
+        },
+        {
+            "rpi.contrast":
+            {
+                "ce_enable": 1,
+                "gamma_curve":
+                [
+                    0, 0,
+                    1024, 5040,
+                    2048, 9338,
+                    3072, 12356,
+                    4096, 15312,
+                    5120, 18051,
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+                    10240, 30035,
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+                    28672, 52698,
+                    30720, 53796,
+                    32768, 54876,
+                    36864, 57012,
+                    40960, 58656,
+                    45056, 59954,
+                    49152, 61183,
+                    53248, 62355,
+                    57344, 63419,
+                    61440, 64476,
+                    65535, 65535
+                ]
+            }
+        },
+        {
+            "rpi.ccm":
+            {
+                "ccms": [
+                    {
+                        "ct": 2750,
+                        "ccm":
+                        [
+                            1.13004, 0.36392, -0.49396,
+                            -0.45885, 1.68171, -0.22286,
+                            -0.06473, -0.86962, 1.93435
+                        ]
+                    },
+                    {
+                        "ct": 2940,
+                        "ccm":
+                        [
+                            1.29876, 0.09627, -0.39503,
+                            -0.43085, 1.60258, -0.17172,
+                            -0.02638, -0.92581, 1.95218
+                        ]
+                    },
+                    {
+                        "ct": 3650,
+                        "ccm":
+                        [
+                            1.57729, -0.29734, -0.27995,
+                            -0.42965, 1.66231, -0.23265,
+                            -0.02183, -0.62331, 1.64514
+                        ]
+                    },
+                    {
+                        "ct": 4625,
+                        "ccm":
+                        [
+                            1.52145, -0.22382, -0.29763,
+                            -0.40445, 1.82186, -0.41742,
+                            -0.05732, -0.56222, 1.61954
+                        ]
+                    },
+                    {
+                        "ct": 5715,
+                        "ccm":
+                        [
+                            1.67851, -0.39193, -0.28658,
+                            -0.37169, 1.72949, -0.35781,
+                            -0.09556, -0.41951, 1.51508
+                        ]
+                    }
+                ]
+            }
+        },
+        {
+            "rpi.sharpen": { }
+        },
+        {
+            "rpi.af":
+            {
+                "ranges":
+                {
+                    "normal":
+                    {
+                        "min": 0.0,
+                        "max": 12.0,
+                        "default": 1.0
+                    },
+                    "macro":
+                    {
+                        "min": 4.0,
+                        "max": 32.0,
+                        "default": 6.0
+                    }
+                },
+                "speeds":
+                {
+                    "normal":
+                    {
+                        "step_coarse": 2.0,
+                        "step_fine": 0.5,
+                        "contrast_ratio": 0.75,
+                        "pdaf_gain": -0.03,
+                        "pdaf_squelch": 0.2,
+                        "max_slew": 4.0,
+                        "pdaf_frames": 20,
+                        "dropout_frames": 6,
+                        "step_frames": 4
+                    },
+                    "fast":
+                    {
+                        "step_coarse": 2.0,
+                        "step_fine": 0.5,
+                        "contrast_ratio": 0.75,
+                        "pdaf_gain": -0.05,
+                        "pdaf_squelch": 0.2,
+                        "max_slew": 5.0,
+                        "pdaf_frames": 16,
+                        "dropout_frames": 6,
+                        "step_frames": 4
+                    }
+                },
+                "conf_epsilon": 8,
+                "conf_thresh": 12,
+                "conf_clip": 512,
+                "skip_frames": 5,
+                "map": [ 0.0, 420, 35.0, 920 ]
+            }
+        }
+    ]
+}