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, 413 insertions, 0 deletions

diff --git a/src/ipa/rpi/vc4/data/imx378.json b/src/ipa/rpi/vc4/data/imx378.json
new file mode 100644
index 00000000..8b4ed225
--- /dev/null
+++ b/src/ipa/rpi/vc4/data/imx378.json
@@ -0,0 +1,413 @@
+{
+    "version": 2.0,
+    "target": "bcm2835",
+    "algorithms": [
+        {
+            "rpi.black_level":
+            {
+                "black_level": 4096
+            }
+        },
+        {
+            "rpi.dpc": { }
+        },
+        {
+            "rpi.lux":
+            {
+                "reference_shutter_speed": 9999,
+                "reference_gain": 1.95,
+                "reference_aperture": 1.0,
+                "reference_lux": 1000,
+                "reference_Y": 12996
+            }
+        },
+        {
+            "rpi.noise":
+            {
+                "reference_constant": 0,
+                "reference_slope": 2.641
+            }
+        },
+        {
+            "rpi.geq":
+            {
+                "offset": 235,
+                "slope": 0.00902
+            }
+        },
+        {
+            "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": 8100
+                    }
+                },
+                "bayes": 1,
+                "ct_curve":
+                [
+                    2850.0, 0.6361, 0.3911,
+                    3550.0, 0.5386, 0.5077,
+                    4500.0, 0.4472, 0.6171,
+                    5600.0, 0.3906, 0.6848,
+                    8000.0, 0.3412, 0.7441
+                ],
+                "sensitivity_r": 1.0,
+                "sensitivity_b": 1.0,
+                "transverse_pos": 0.01667,
+                "transverse_neg": 0.01195
+            }
+        },
+        {
+            "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, 10000, 30000, 60000, 120000 ],
+                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
+                    },
+                    "short":
+                    {
+                        "shutter": [ 100, 5000, 10000, 20000, 120000 ],
+                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
+                    }
+                },
+                "constraint_modes":
+                {
+                    "normal": [
+                        {
+                            "bound": "LOWER",
+                            "q_lo": 0.98,
+                            "q_hi": 1.0,
+                            "y_target":
+                            [
+                                0, 0.5,
+                                1000, 0.5
+                            ]
+                        }
+                    ],
+                    "highlight": [
+                        {
+                            "bound": "LOWER",
+                            "q_lo": 0.98,
+                            "q_hi": 1.0,
+                            "y_target":
+                            [
+                                0, 0.5,
+                                1000, 0.5
+                            ]
+                        },
+                        {
+                            "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
+                ]
+            }
+        },
+        {
+            "rpi.alsc":
+            {
+                "omega": 1.3,
+                "n_iter": 100,
+                "luminance_strength": 0.5,
+                "calibrations_Cr": [
+                    {
+                        "ct": 2800,
+                        "table":
+                        [
+                            1.604, 1.601, 1.593, 1.581, 1.568, 1.561, 1.561, 1.561, 1.561, 1.567, 1.582, 1.596, 1.609, 1.622, 1.632, 1.636,
+                            1.601, 1.594, 1.586, 1.571, 1.555, 1.546, 1.543, 1.543, 1.547, 1.555, 1.572, 1.584, 1.599, 1.614, 1.625, 1.632,
+                            1.599, 1.586, 1.571, 1.555, 1.542, 1.528, 1.518, 1.518, 1.523, 1.537, 1.555, 1.572, 1.589, 1.607, 1.622, 1.629,
+                            1.597, 1.579, 1.561, 1.542, 1.528, 1.512, 1.493, 1.493, 1.499, 1.523, 1.537, 1.563, 1.582, 1.601, 1.619, 1.629,
+                            1.597, 1.577, 1.557, 1.535, 1.512, 1.493, 1.481, 1.479, 1.492, 1.499, 1.524, 1.555, 1.578, 1.599, 1.619, 1.629,
+                            1.597, 1.577, 1.557, 1.534, 1.508, 1.483, 1.476, 1.476, 1.481, 1.496, 1.522, 1.554, 1.578, 1.599, 1.619, 1.629,
+                            1.597, 1.578, 1.557, 1.534, 1.508, 1.483, 1.481, 1.479, 1.481, 1.496, 1.522, 1.554, 1.579, 1.601, 1.619, 1.631,
+                            1.597, 1.581, 1.562, 1.539, 1.517, 1.504, 1.483, 1.481, 1.496, 1.511, 1.531, 1.561, 1.585, 1.607, 1.623, 1.632,
+                            1.601, 1.589, 1.569, 1.554, 1.539, 1.517, 1.504, 1.504, 1.511, 1.531, 1.553, 1.573, 1.596, 1.614, 1.629, 1.636,
+                            1.609, 1.601, 1.586, 1.569, 1.554, 1.542, 1.535, 1.535, 1.541, 1.553, 1.573, 1.592, 1.608, 1.625, 1.637, 1.645,
+                            1.617, 1.611, 1.601, 1.586, 1.574, 1.565, 1.564, 1.564, 1.571, 1.579, 1.592, 1.608, 1.622, 1.637, 1.646, 1.654,
+                            1.619, 1.617, 1.611, 1.601, 1.588, 1.585, 1.585, 1.585, 1.588, 1.592, 1.607, 1.622, 1.637, 1.645, 1.654, 1.655
+                        ]
+                    },
+                    {
+                        "ct": 5500,
+                        "table":
+                        [
+                            2.664, 2.658, 2.645, 2.629, 2.602, 2.602, 2.602, 2.606, 2.617, 2.628, 2.649, 2.677, 2.699, 2.722, 2.736, 2.747,
+                            2.658, 2.653, 2.629, 2.605, 2.576, 2.575, 2.577, 2.592, 2.606, 2.618, 2.629, 2.651, 2.678, 2.707, 2.727, 2.741,
+                            2.649, 2.631, 2.605, 2.576, 2.563, 2.552, 2.552, 2.557, 2.577, 2.604, 2.619, 2.641, 2.669, 2.698, 2.721, 2.741,
+                            2.643, 2.613, 2.583, 2.563, 2.552, 2.531, 2.527, 2.527, 2.551, 2.577, 2.604, 2.638, 2.665, 2.694, 2.721, 2.741,
+                            2.643, 2.606, 2.575, 2.558, 2.531, 2.516, 2.504, 2.516, 2.527, 2.551, 2.596, 2.635, 2.665, 2.694, 2.721, 2.741,
+                            2.643, 2.606, 2.575, 2.558, 2.531, 2.503, 2.501, 2.502, 2.522, 2.551, 2.592, 2.635, 2.669, 2.696, 2.727, 2.744,
+                            2.648, 2.611, 2.579, 2.558, 2.532, 2.511, 2.502, 2.511, 2.522, 2.552, 2.592, 2.642, 2.673, 2.702, 2.731, 2.752,
+                            2.648, 2.619, 2.589, 2.571, 2.556, 2.532, 2.519, 2.522, 2.552, 2.568, 2.605, 2.648, 2.683, 2.715, 2.743, 2.758,
+                            2.659, 2.637, 2.613, 2.589, 2.571, 2.556, 2.555, 2.555, 2.568, 2.605, 2.641, 2.671, 2.699, 2.729, 2.758, 2.776,
+                            2.679, 2.665, 2.637, 2.613, 2.602, 2.599, 2.599, 2.606, 2.619, 2.641, 2.671, 2.698, 2.723, 2.754, 2.776, 2.787,
+                            2.695, 2.684, 2.671, 2.646, 2.636, 2.636, 2.641, 2.648, 2.661, 2.681, 2.698, 2.723, 2.751, 2.776, 2.788, 2.803,
+                            2.702, 2.699, 2.684, 2.671, 2.664, 2.664, 2.664, 2.668, 2.681, 2.698, 2.723, 2.751, 2.773, 2.788, 2.803, 2.805
+                        ]
+                    }
+                ],
+                "calibrations_Cb": [
+                    {
+                        "ct": 2800,
+                        "table":
+                        [
+                            2.876, 2.868, 2.863, 2.851, 2.846, 2.846, 2.847, 2.851, 2.851, 2.857, 2.867, 2.875, 2.889, 2.899, 2.913, 2.926,
+                            2.863, 2.861, 2.856, 2.846, 2.846, 2.847, 2.848, 2.851, 2.857, 2.859, 2.875, 2.882, 2.886, 2.896, 2.909, 2.917,
+                            2.861, 2.856, 2.846, 2.841, 2.841, 2.855, 2.867, 2.875, 2.888, 2.888, 2.885, 2.883, 2.886, 2.889, 2.901, 2.913,
+                            2.858, 2.851, 2.846, 2.846, 2.855, 2.867, 2.884, 2.895, 2.902, 2.902, 2.901, 2.891, 2.891, 2.894, 2.901, 2.909,
+                            2.858, 2.851, 2.846, 2.846, 2.867, 2.884, 2.895, 2.902, 2.909, 2.915, 2.911, 2.901, 2.895, 2.898, 2.904, 2.909,
+                            2.858, 2.851, 2.849, 2.853, 2.874, 2.888, 2.901, 2.909, 2.917, 2.922, 2.917, 2.911, 2.901, 2.899, 2.905, 2.908,
+                            2.861, 2.855, 2.853, 2.855, 2.874, 2.888, 2.901, 2.913, 2.918, 2.922, 2.921, 2.911, 2.901, 2.901, 2.907, 2.908,
+                            2.862, 2.859, 2.855, 2.856, 2.872, 2.885, 2.899, 2.906, 2.915, 2.917, 2.911, 2.907, 2.907, 2.907, 2.908, 2.909,
+                            2.863, 2.863, 2.859, 2.864, 2.871, 2.881, 2.885, 2.899, 2.905, 2.905, 2.904, 2.904, 2.907, 2.909, 2.913, 2.913,
+                            2.866, 2.865, 2.865, 2.867, 2.868, 2.872, 2.881, 2.885, 2.889, 2.894, 2.895, 2.902, 2.906, 2.913, 2.914, 2.917,
+                            2.875, 2.875, 2.871, 2.871, 2.871, 2.871, 2.869, 2.869, 2.878, 2.889, 2.894, 2.895, 2.906, 2.914, 2.917, 2.921,
+                            2.882, 2.879, 2.876, 2.874, 2.871, 2.871, 2.869, 2.869, 2.869, 2.878, 2.891, 2.894, 2.905, 2.914, 2.919, 2.921
+                        ]
+                    },
+                    {
+                        "ct": 5500,
+                        "table":
+                        [
+                            1.488, 1.488, 1.488, 1.488, 1.491, 1.492, 1.492, 1.491, 1.491, 1.491, 1.492, 1.495, 1.497, 1.499, 1.499, 1.503,
+                            1.482, 1.485, 1.485, 1.487, 1.489, 1.492, 1.492, 1.492, 1.492, 1.492, 1.494, 1.494, 1.492, 1.491, 1.493, 1.494,
+                            1.482, 1.482, 1.484, 1.485, 1.487, 1.492, 1.496, 1.498, 1.499, 1.498, 1.494, 1.492, 1.491, 1.491, 1.491, 1.491,
+                            1.481, 1.481, 1.482, 1.485, 1.491, 1.496, 1.498, 1.499, 1.501, 1.499, 1.498, 1.493, 1.491, 1.488, 1.488, 1.488,
+                            1.481, 1.481, 1.481, 1.483, 1.491, 1.497, 1.498, 1.499, 1.501, 1.499, 1.498, 1.492, 1.488, 1.485, 1.483, 1.483,
+                            1.479, 1.479, 1.481, 1.482, 1.489, 1.495, 1.497, 1.498, 1.499, 1.499, 1.495, 1.492, 1.485, 1.482, 1.482, 1.481,
+                            1.479, 1.479, 1.479, 1.481, 1.489, 1.494, 1.496, 1.497, 1.497, 1.496, 1.495, 1.489, 1.482, 1.481, 1.479, 1.477,
+                            1.478, 1.478, 1.479, 1.481, 1.487, 1.491, 1.494, 1.496, 1.496, 1.495, 1.492, 1.487, 1.482, 1.479, 1.478, 1.476,
+                            1.478, 1.478, 1.479, 1.482, 1.486, 1.488, 1.491, 1.493, 1.493, 1.492, 1.487, 1.484, 1.481, 1.479, 1.476, 1.476,
+                            1.477, 1.479, 1.481, 1.483, 1.485, 1.486, 1.488, 1.488, 1.487, 1.487, 1.484, 1.483, 1.481, 1.479, 1.476, 1.476,
+                            1.477, 1.479, 1.482, 1.483, 1.484, 1.485, 1.484, 1.482, 1.482, 1.484, 1.483, 1.482, 1.481, 1.479, 1.477, 1.476,
+                            1.477, 1.479, 1.482, 1.483, 1.484, 1.484, 1.482, 1.482, 1.482, 1.482, 1.482, 1.481, 1.479, 1.479, 1.479, 1.479
+                        ]
+                    }
+                ],
+                "luminance_lut":
+                [
+                    2.764, 2.654, 2.321, 2.043, 1.768, 1.594, 1.558, 1.558, 1.558, 1.568, 1.661, 1.904, 2.193, 2.497, 2.888, 3.043,
+                    2.654, 2.373, 2.049, 1.819, 1.569, 1.446, 1.381, 1.356, 1.356, 1.403, 1.501, 1.679, 1.939, 2.218, 2.586, 2.888,
+                    2.376, 2.154, 1.819, 1.569, 1.438, 1.301, 1.246, 1.224, 1.224, 1.263, 1.349, 1.501, 1.679, 1.985, 2.359, 2.609,
+                    2.267, 1.987, 1.662, 1.438, 1.301, 1.235, 1.132, 1.105, 1.105, 1.164, 1.263, 1.349, 1.528, 1.808, 2.184, 2.491,
+                    2.218, 1.876, 1.568, 1.367, 1.235, 1.132, 1.087, 1.022, 1.023, 1.104, 1.164, 1.278, 1.439, 1.695, 2.066, 2.429,
+                    2.218, 1.832, 1.533, 1.341, 1.206, 1.089, 1.013, 1.002, 1.013, 1.026, 1.122, 1.246, 1.399, 1.642, 2.004, 2.426,
+                    2.218, 1.832, 1.533, 1.341, 1.206, 1.089, 1.011, 1.001, 1.009, 1.026, 1.122, 1.246, 1.399, 1.642, 2.004, 2.426,
+                    2.224, 1.896, 1.584, 1.382, 1.248, 1.147, 1.088, 1.016, 1.026, 1.118, 1.168, 1.283, 1.444, 1.697, 2.066, 2.428,
+                    2.292, 2.019, 1.689, 1.462, 1.322, 1.247, 1.147, 1.118, 1.118, 1.168, 1.275, 1.358, 1.532, 1.809, 2.189, 2.491,
+                    2.444, 2.204, 1.856, 1.606, 1.462, 1.322, 1.257, 1.234, 1.234, 1.275, 1.358, 1.516, 1.686, 1.993, 2.371, 2.622,
+                    2.748, 2.444, 2.108, 1.856, 1.606, 1.476, 1.399, 1.376, 1.376, 1.422, 1.516, 1.686, 1.968, 2.238, 2.611, 2.935,
+                    2.862, 2.748, 2.395, 2.099, 1.811, 1.621, 1.582, 1.582, 1.582, 1.592, 1.677, 1.919, 2.223, 2.534, 2.935, 3.078
+                ],
+                "sigma": 0.00428,
+                "sigma_Cb": 0.00363
+            }
+        },
+        {
+            "rpi.contrast":
+            {
+                "ce_enable": 1,
+                "gamma_curve":
+                [
+                    0, 0,
+                    1024, 5040,
+                    2048, 9338,
+                    3072, 12356,
+                    4096, 15312,
+                    5120, 18051,
+                    6144, 20790,
+                    7168, 23193,
+                    8192, 25744,
+                    9216, 27942,
+                    10240, 30035,
+                    11264, 32005,
+                    12288, 33975,
+                    13312, 35815,
+                    14336, 37600,
+                    15360, 39168,
+                    16384, 40642,
+                    18432, 43379,
+                    20480, 45749,
+                    22528, 47753,
+                    24576, 49621,
+                    26624, 51253,
+                    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": 2850,
+                        "ccm":
+                        [
+                            1.42601, -0.20537, -0.22063,
+                            -0.47682, 1.81987, -0.34305,
+                            0.01854, -0.86036, 1.84181
+                        ]
+                    },
+                    {
+                        "ct": 2900,
+                        "ccm":
+                        [
+                            1.29755, 0.04602, -0.34356,
+                            -0.41491, 1.73477, -0.31987,
+                            -0.01345, -0.97115, 1.98459
+                        ]
+                    },
+                    {
+                        "ct": 3550,
+                        "ccm":
+                        [
+                            1.49811, -0.33412, -0.16398,
+                            -0.40869, 1.72995, -0.32127,
+                            -0.01924, -0.62181, 1.64105
+                        ]
+                    },
+                    {
+                        "ct": 4500,
+                        "ccm":
+                        [
+                            1.47015, -0.29229, -0.17786,
+                            -0.36561, 1.88919, -0.52358,
+                            -0.03552, -0.56717, 1.60269
+                        ]
+                    },
+                    {
+                        "ct": 5600,
+                        "ccm":
+                        [
+                            1.60962, -0.47434, -0.13528,
+                            -0.32701, 1.73797, -0.41096,
+                            -0.07626, -0.40171, 1.47796
+                        ]
+                    },
+                    {
+                        "ct": 8000,
+                        "ccm":
+                        [
+                            1.54642, -0.20396, -0.34246,
+                            -0.31748, 2.22559, -0.90811,
+                            -0.10035, -0.65877, 1.75912
+                        ]
+                    }
+                ]
+            }
+        },
+        {
+            "rpi.sharpen": { }
+        }
+    ]
+}
\ No newline at end of file