mirror of
https://github.com/slsdetectorgroup/aare.git
synced 2026-09-25 21:32:09 +02:00
c880d6a252
- added release notes - added documentation for python - added python bindings --------- Co-authored-by: vhinger <viktoria.hinger@psi.ch> Co-authored-by: Erik Fröjdh <erik.frojdh@psi.ch>
108 lines
4.2 KiB
Python
108 lines
4.2 KiB
Python
# SPDX-License-Identifier: MPL-2.0
|
|
|
|
import json
|
|
import shutil
|
|
import struct
|
|
import tempfile
|
|
import time
|
|
from pathlib import Path
|
|
from aare import ROI
|
|
import random
|
|
|
|
|
|
# TODO: maybe a fixture is better
|
|
def get_module_size_from_roi(module_idx : tuple, receiver_roi : ROI, pixels_per_module: tuple) -> tuple:
|
|
"""Get the size of a module in pixels from the receiver ROI and the pixels per module.
|
|
|
|
Args:
|
|
module_idx (tuple): The index of the module in the format (y, x).
|
|
receiver_roi (ROI): The receiver ROI.
|
|
pixels_per_module (tuple): The number of pixels per module in the x and y directions.
|
|
|
|
Returns:
|
|
tuple: The size of the module in pixels in the x and y directions.
|
|
"""
|
|
module_x = module_idx[1]
|
|
module_y = module_idx[0]
|
|
|
|
module_ROI = ROI(
|
|
module_x * pixels_per_module[1], (module_x + 1) * pixels_per_module[1],
|
|
module_y * pixels_per_module[0], (module_y + 1) * pixels_per_module[0]
|
|
)
|
|
|
|
# Calculate the size of the module in pixels
|
|
xmin = max(receiver_roi.xmin, module_ROI.xmin)
|
|
ymin = max(receiver_roi.ymin, module_ROI.ymin)
|
|
xmax = min(receiver_roi.xmax, module_ROI.xmax)
|
|
ymax = min(receiver_roi.ymax, module_ROI.ymax)
|
|
|
|
|
|
if xmin >= xmax or ymin >= ymax:
|
|
return (0, 0)
|
|
else:
|
|
module_size_x = xmax - xmin
|
|
module_size_y = ymax - ymin
|
|
return (module_size_y, module_size_x)
|
|
|
|
|
|
class TemporaryJungfrauRawFiles:
|
|
def __init__(self, modules: tuple = (2,1), pixels_per_module: tuple = (256,1024), receiver_roi : ROI = ROI(0, 1024, 0, 512)) -> None:
|
|
unique = time.monotonic_ns()
|
|
self._directory = Path(tempfile.gettempdir()) / f"aare-raw-{unique}"
|
|
self._directory.mkdir()
|
|
|
|
image_size_in_bytes = receiver_roi.size() * 2 # 2 bytes per pixel
|
|
|
|
metadata = {
|
|
"Version": 8.1,
|
|
"Detector Type": "Jungfrau",
|
|
"Timing Mode": "auto",
|
|
"Geometry": {"x": modules[1], "y": modules[0]},
|
|
"Image Size": image_size_in_bytes,
|
|
"Pixels": {"x": pixels_per_module[1], "y": pixels_per_module[0]},
|
|
"Max Frames Per File": 1,
|
|
"Total Frames": 2,
|
|
"Frames in File": 2,
|
|
"Frame Padding": 1,
|
|
"Frame Discard Policy": "nodiscard",
|
|
"UDP Ports Type" : ["bottom", "top"],
|
|
"UDP Ports Disabled": [],
|
|
"Receiver Rois": [{"xmin": receiver_roi.xmin, "xmax": receiver_roi.xmax-1, "ymin": receiver_roi.ymin, "ymax": receiver_roi.ymax-1}] # inclusive
|
|
}
|
|
self.master_path().write_text(json.dumps(metadata), encoding="utf-8")
|
|
|
|
for module_x in range(metadata["Geometry"]["x"]):
|
|
for module_y in range(metadata["Geometry"]["y"]):
|
|
size = get_module_size_from_roi((module_y, module_x), receiver_roi, pixels_per_module)
|
|
if(size == (0, 0)):
|
|
continue
|
|
values = [random.randint(0, 65535) for _ in range(size[0] * size[1])]
|
|
pixels = struct.pack(f"<{len(values)}H", *values)
|
|
for file_index in range(metadata["Frames in File"]):
|
|
with self.data_path(module_x * metadata["Geometry"]["y"] + module_y, file_index).open("wb") as output:
|
|
output.write(self._detector_header_bytes(file_index))
|
|
output.write(pixels)
|
|
|
|
def cleanup(self) -> None:
|
|
shutil.rmtree(self._directory, ignore_errors=True)
|
|
|
|
def __enter__(self) -> "TemporaryJungfrauRawFiles":
|
|
return self
|
|
|
|
def __exit__(self, exc_type, exc, tb) -> None:
|
|
self.cleanup()
|
|
|
|
def __del__(self) -> None:
|
|
self.cleanup()
|
|
|
|
def master_path(self) -> Path:
|
|
return self._directory / "run_master_0.json"
|
|
|
|
def data_path(self, module: int = 0, file: int = 0) -> Path:
|
|
return self._directory / f"run_d{module}_f{file}_0.raw"
|
|
|
|
@staticmethod
|
|
def _detector_header_bytes(frame_number: int) -> bytes:
|
|
# TODO: Mirror include/aare/DetectorHeader.hpp exactly if the full
|
|
# binary layout is required by the test.
|
|
return struct.pack("<Q", frame_number) + bytes(range(104)) #in total detector header is 112 bytes, 8 bytes for frame number and 104 bytes for the rest of the header |