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, 556 insertions, 0 deletions

diff --git a/src/ipa/rpi/vc4/data/imx708_noir.json b/src/ipa/rpi/vc4/data/imx708_noir.json
new file mode 100644
index 00000000..075f7035
--- /dev/null
+++ b/src/ipa/rpi/vc4/data/imx708_noir.json
@@ -0,0 +1,556 @@
+{
+    "version": 2.0,
+    "target": "bcm2835",
+    "algorithms": [
+        {
+            "rpi.black_level":
+            {
+                "black_level": 4096
+            }
+        },
+        {
+            "rpi.dpc": { }
+        },
+        {
+            "rpi.lux":
+            {
+                "reference_shutter_speed": 10672,
+                "reference_gain": 1.12,
+                "reference_aperture": 1.0,
+                "reference_lux": 977,
+                "reference_Y": 8627
+            }
+        },
+        {
+            "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": 0,
+                "ct_curve":
+                [
+                    2498.0, 0.8733, 0.2606,
+                    2821.0, 0.7707, 0.3245,
+                    2925.0, 0.7338, 0.3499,
+                    2926.0, 0.7193, 0.3603,
+                    2951.0, 0.7144, 0.3639,
+                    2954.0, 0.7111, 0.3663,
+                    3578.0, 0.6038, 0.4516,
+                    3717.0, 0.5861, 0.4669,
+                    3784.0, 0.5786, 0.4737,
+                    4485.0, 0.5113, 0.5368,
+                    4615.0, 0.4994, 0.5486,
+                    4671.0, 0.4927, 0.5554,
+                    5753.0, 0.4274, 0.6246,
+                    5773.0, 0.4265, 0.6256,
+                    7433.0, 0.3723, 0.6881
+                ],
+                "sensitivity_r": 1.05,
+                "sensitivity_b": 1.05,
+                "transverse_pos": 0.03148,
+                "transverse_neg": 0.03061
+            }
+        },
+        {
+            "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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+                        ]
+                    },
+                    {
+                        "ct": 5000,
+                        "table":
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+                            2.603, 2.605, 2.596, 2.561, 2.508, 2.474, 2.418, 2.396, 2.396, 2.417, 2.474, 2.511, 2.562, 2.596, 2.603, 2.602,
+                            2.601, 2.607, 2.606, 2.589, 2.549, 2.507, 2.456, 2.454, 2.454, 2.458, 2.508, 2.554, 2.594, 2.605, 2.605, 2.602
+                        ]
+                    }
+                ],
+                "calibrations_Cb": [
+                    {
+                        "ct": 3000,
+                        "table":
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+                        ]
+                    },
+                    {
+                        "ct": 5000,
+                        "table":
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+                        ]
+                    }
+                ],
+                "luminance_lut":
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+                ],
+                "sigma": 0.00178,
+                "sigma_Cb": 0.00217
+            }
+        },
+        {
+            "rpi.contrast":
+            {
+                "ce_enable": 1,
+                "gamma_curve":
+                [
+                    0, 0,
+                    1024, 5040,
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+                    49152, 61183,
+                    53248, 62355,
+                    57344, 63419,
+                    61440, 64476,
+                    65535, 65535
+                ]
+            }
+        },
+        {
+            "rpi.ccm":
+            {
+                "ccms": [
+                    {
+                        "ct": 2498,
+                        "ccm":
+                        [
+                            1.14912, 0.28638, -0.43551,
+                            -0.49691, 1.60391, -0.10701,
+                            -0.10513, -1.09534, 2.20047
+                        ]
+                    },
+                    {
+                        "ct": 2821,
+                        "ccm":
+                        [
+                            1.18251, 0.15501, -0.33752,
+                            -0.44304, 1.58495, -0.14191,
+                            -0.05077, -0.96422, 2.01498
+                        ]
+                    },
+                    {
+                        "ct": 2925,
+                        "ccm":
+                        [
+                            1.18668, 0.00195, -0.18864,
+                            -0.41617, 1.50514, -0.08897,
+                            -0.02675, -0.91143, 1.93818
+                        ]
+                    },
+                    {
+                        "ct": 2926,
+                        "ccm":
+                        [
+                            1.50948, -0.44421, -0.06527,
+                            -0.37241, 1.41726, -0.04486,
+                            0.07098, -0.84694, 1.77596
+                        ]
+                    },
+                    {
+                        "ct": 2951,
+                        "ccm":
+                        [
+                            1.52743, -0.47333, -0.05411,
+                            -0.36485, 1.40764, -0.04279,
+                            0.08672, -0.90479, 1.81807
+                        ]
+                    },
+                    {
+                        "ct": 2954,
+                        "ccm":
+                        [
+                            1.51683, -0.46841, -0.04841,
+                            -0.36288, 1.39914, -0.03625,
+                            0.06421, -0.82034, 1.75613
+                        ]
+                    },
+                    {
+                        "ct": 3578,
+                        "ccm":
+                        [
+                            1.59888, -0.59105, -0.00784,
+                            -0.29366, 1.32037, -0.02671,
+                            0.06627, -0.76465, 1.69838
+                        ]
+                    },
+                    {
+                        "ct": 3717,
+                        "ccm":
+                        [
+                            1.59063, -0.58059, -0.01003,
+                            -0.29583, 1.32715, -0.03132,
+                            0.03613, -0.67431, 1.63817
+                        ]
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+}