many improvement

tools/img/stereo.pbm

@@ -0,0 +1,4 @@
+P4
+# Created by GIMP version 2.10.32 PNM plug-in
+16 10
+  @I<><49>ɓ<EFBFBD>I<EFBFBD>@  

tools/make_monoimg.py

@@ -0,0 +1,39 @@
+import framebuf
+import pbm
+import math
+import argparse
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("pbm_image_file", help="PBM fotmat mono image.", type=argparse.FileType("rb"))
+    parser.add_argument("img_name", help="generated image name.")
+    args = parser.parse_args()
+    img_name = args.img_name.upper().replace("-", "_").replace(" ", "_").replace(".", "_")
+    iw, ih, _fmt, data, _ = pbm.read_image(args.pbm_image_file)
+    img = framebuf.FrameBuffer(data, iw, ih, framebuf.MONO_HLSB)
+    buffer_frame = bytearray(iw * math.ceil(ih / 8))
+    frame = framebuf.FrameBuffer(buffer_frame, iw, ih, framebuf.MONO_VLSB)
+    for y in range(ih):
+        for x in range(iw):
+            frame.pixel(x, y, img.pixel(x, y))
+
+    data = bytearray()
+    data.append(iw - 1) # image width - 1
+    data.append(ih - 1) # image height - 1
+    data.extend(buffer_frame) # image data in MONO_VLSB format
+    f = open(f"img_{img_name.lower()}.h", "wt")
+    f.write("#pragma once\n")
+    f.write("#include <stdint.h>\n")
+    f.write("\n")
+    f.write(f"const uint8_t IMG_{img_name}[] = {{")
+    for i, byte in enumerate(data):
+        if i % 16 == 0:
+            f.write("\n   ")
+        f.write(f" 0x{byte:02X},")
+    f.write("\n};\n")
+    f.write(f"const uint32_t DATA_SIZE_IMG_{img_name} = {len(data)};\n")
+    f.write("\n")
+    f.close()
+
+    print(f"Image Name: {img_name}")
+    print(f"Header File Name: img_{img_name.lower()}.h")

tools/pbm.py

@@ -29,7 +29,7 @@ def _read_header(instream):
     instream.seek(0)
     mg = instream.read(2)
     if mg != b"P1" and mg != b"P4":
-        return (-1, -1, b"UNKNOWN", -1)
+        return (-1, -1, b"UNKNOWN", -1, b"")
     # state machine
     comment = bytearray()
     buffer = bytearray() # list to store bytes