fix: 空渠道检测改用JSONObject.has + 移除gitignore误排除manifest

check_png.py

@@ -0,0 +1,74 @@
+import sys
+import io
+
+sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
+
+with open(r"D:\Yuzu-GCA\screen_fixed.png", 'rb') as f:
+    data = f.read()
+
+print(f"Total size: {len(data)}")
+
+# Check PNG structure
+# Signature: 8 bytes
+# Then chunks: each chunk has 4-byte length, 4-byte type, data, 4-byte CRC
+
+offset = 8  # skip signature
+
+while offset < len(data):
+    if offset + 8 > len(data):
+        break
+    length = int.from_bytes(data[offset:offset+4], 'big')
+    chunk_type = data[offset+4:offset+8].decode('ascii', errors='replace')
+    print(f"Chunk at offset {offset}: type='{chunk_type}', length={length}")
+    
+    if chunk_type == 'IHDR':
+        w = int.from_bytes(data[offset+8:offset+12], 'big')
+        h = int.from_bytes(data[offset+12:offset+16], 'big')
+        bit_depth = data[offset+16]
+        color_type = data[offset+17]
+        print(f"  Width={w}, Height={h}, BitDepth={bit_depth}, ColorType={color_type}")
+        # Height seems wrong (854591). Expected ~1920 or ~2340
+        # 0x000D0A3F: maybe it was 0x00000780 (1920) or 0x00000924 (2340)?
+        # Let me look at the raw bytes around height
+        print(f"  Raw height bytes: {' '.join(f'{b:02X}' for b in data[offset+12:offset+16])}")
+        # Expected height around 1920 = 0x780, or 2340 = 0x924
+        # What we have: 00 0D 0A 3F = 0x000D0A3F
+        # Could it be that 0D 0A is an inserted CR LF?
+        # If we remove 0D 0A: remaining would be 00 3F... but that's only 2 bytes
+        # Actually: 00 [0D 0A] 3F -> 00 3F? That's too short.
+        # Maybe: 00 [0D] 0A 3F, and 0D was inserted? Then original: 00 0A 3F = 2623 pixels?
+        # Or maybe: 00 00 0A 3F was original? No.
+        
+        # Let me check: common heights: 1920=0x780, 2000=0x7D0, 2340=0x924
+        # 0x0A3F = 2623 (close to nothing standard)
+        # What if the actual height bytes are 00 00 0A 3F? That's still 2623.
+        # What about 00 00 07 80 (1920)? Then 0D 0A replaced 00 07 somehow?
+        
+    offset += 12 + length
+    
+    if offset > 200:
+        break
+
+# Let me search for CR LF (0D 0A) in the PNG data
+crlf_count = 0
+for i in range(len(data) - 1):
+    if data[i] == 0x0D and data[i+1] == 0x0A:
+        crlf_count += 1
+        if crlf_count <= 10:
+            print(f"CR LF at offset {i}: context: {' '.join(f'{b:02X}' for b in data[max(0,i-4):i+6])}")
+
+print(f"\nTotal CR LF sequences: {crlf_count}")
+
+# Also count lone 0A
+lone_lf = 0
+for i in range(len(data)):
+    if data[i] == 0x0A and (i == 0 or data[i-1] != 0x0D):
+        lone_lf += 1
+print(f"Lone LF: {lone_lf}")
+
+# Count lone 0D  
+lone_cr = 0
+for i in range(len(data)):
+    if data[i] == 0x0D and (i == len(data)-1 or data[i+1] != 0x0A):
+        lone_cr += 1
+print(f"Lone CR: {lone_cr}")