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import time
import threading
import numpy as np
import base64
import zlib
import os
from flask import Flask, render_template_string
from flask_socketio import SocketIO, emit
# ===== PYGAME SETUP =====
os.environ['SDL_VIDEODRIVER'] = 'dummy'
pygame.init()
print("✅ PyGame initialized with surfarray")
WIDTH, HEIGHT = 400, 300
# Create surface
screen = pygame.Surface((WIDTH, HEIGHT))
print(f"✅ Surface: {WIDTH}x{HEIGHT}")
# Test surfarray
print("🧪 Testing surfarray...")
test_arr = pygame.surfarray.array3d(screen)
print(f"✅ Surfarray works! Shape: {test_arr.shape}, Type: {test_arr.dtype}")
# ===== FLASK/SOCKETIO =====
app = Flask(__name__)
app.config['SECRET_KEY'] = 'surfarray_stream'
socketio = SocketIO(app, async_mode='threading', cors_allowed_origins="*")
# Shared state
shared = {
"running": True,
"x": 200,
"frame_count": 0,
"clients": 0
}
# ===== SURFARRAY THREAD =====
def surfarray_thread():
"""Send raw pixel arrays via WebSocket"""
print("📊 Surfarray thread STARTED")
x, speed = 200, 5
fps_counter = 0
last_log = time.time()
while shared["running"]:
try:
start_time = time.time()
# 1. UPDATE POSITION
x += speed
if x < 30 or x > WIDTH-30:
speed *= -1
# 2. DRAW
screen.fill((25, 25, 45)) # Dark blue
pygame.draw.circle(screen, (255, 80, 80), (int(x), 150), 20)
pygame.draw.circle(screen, (255, 255, 255), (int(x), 150), 20, 2)
# 3. GET PIXEL ARRAY (FAST!)
pixel_array = pygame.surfarray.array3d(screen) # Shape: (400, 300, 3)
# 4. COMPRESS (optional but recommended)
# Flatten and compress the array
flat_data = pixel_array.flatten().tobytes()
compressed = zlib.compress(flat_data, level=1) # Fast compression
encoded = base64.b64encode(compressed).decode('utf-8')
# 5. BROADCAST
shared["x"] = x
shared["frame_count"] += 1
socketio.emit('pixel_data', {
'pixels': encoded,
'shape': [WIDTH, HEIGHT, 3], # Send dimensions
'frame': shared["frame_count"],
'x': x,
'compressed': True
})
# 6. LOGGING
fps_counter += 1
current_time = time.time()
if current_time - last_log >= 1.0:
print(f"📊 Sent {fps_counter} frames | Frame {shared['frame_count']} | X={x}")
fps_counter = 0
last_log = current_time
# 7. FRAME RATE
elapsed = time.time() - start_time
if elapsed < 1.0/30:
time.sleep(1.0/30 - elapsed)
except Exception as e:
print(f"❌ Surfarray thread error: {e}")
import traceback
traceback.print_exc()
break
print("🛑 Surfarray thread STOPPED")
# ===== START THREAD =====
thread = threading.Thread(target=surfarray_thread, daemon=True)
thread.start()
print(f"✅ Thread alive: {thread.is_alive()}")
# ===== FLASK ROUTES =====
@app.route('/')
def index():
return render_template_string('''
<!DOCTYPE html>
<html>
<head>
<script src="https://cdn.socket.io/4.5.0/socket.io.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/pako@2.1.0/dist/pako.min.js"></script>
<style>
body { background: #0f172a; color: white; text-align: center; padding: 20px; }
canvas {
border: 3px solid #60a5fa;
width: 400px;
height: 300px;
image-rendering: pixelated;
}
.stats {
background: #1e293b;
padding: 15px;
border-radius: 10px;
margin: 20px auto;
width: 400px;
}
</style>
</head>
<body>
<h1>📊 Surfarray Stream</h1>
<canvas id="pixelCanvas" width="400" height="300"></canvas>
<div class="stats">
<div>Frame: <span id="frame">0</span></div>
<div>Circle X: <span id="pos">200</span></div>
<div>Status: <span id="status">Connecting...</span></div>
<div>FPS: <span id="fps">0</span></div>
<div>Data size: <span id="size">0 KB</span></div>
</div>
<script>
const socket = io();
const canvas = document.getElementById('pixelCanvas');
const ctx = canvas.getContext('2d');
let framesReceived = 0;
let lastFpsTime = Date.now();
let totalBytes = 0;
// WebSocket connection
socket.on('connect', () => {
console.log('✅ Connected to surfarray stream');
document.getElementById('status').textContent = 'Connected';
document.getElementById('status').style.color = '#10b981';
});
// PIXEL DATA RECEIVED
socket.on('pixel_data', (data) => {
framesReceived++;
totalBytes += data.pixels.length;
// Decode base64
const binaryString = atob(data.pixels);
const bytes = new Uint8Array(binaryString.length);
for (let i = 0; i < binaryString.length; i++) {
bytes[i] = binaryString.charCodeAt(i);
}
// Decompress if needed
let pixelData;
if (data.compressed) {
try {
// Use pako for zlib decompression
pixelData = pako.inflate(bytes);
} catch (e) {
console.error('Decompression failed:', e);
return;
}
} else {
pixelData = bytes;
}
// Create ImageData
const [width, height] = data.shape;
const imageData = new ImageData(width, height);
// Copy pixel data (assuming RGB format)
for (let i = 0; i < pixelData.length; i++) {
imageData.data[i] = pixelData[i];
}
// Draw to canvas
ctx.putImageData(imageData, 0, 0);
// Update stats
document.getElementById('frame').textContent = data.frame;
document.getElementById('pos').textContent = data.x;
document.getElementById('size').textContent =
Math.round(data.pixels.length / 1024) + ' KB';
// Calculate FPS
const now = Date.now();
if (now - lastFpsTime >= 1000) {
document.getElementById('fps').textContent = framesReceived;
framesReceived = 0;
lastFpsTime = now;
}
// Visual feedback
canvas.style.borderColor = '#10b981';
setTimeout(() => canvas.style.borderColor = '#60a5fa', 50);
});
socket.on('disconnect', () => {
document.getElementById('status').textContent = 'Disconnected';
document.getElementById('status').style.color = '#ef4444';
});
console.log('Surfarray client ready');
</script>
</body>
</html>
''')
@socketio.on('connect')
def handle_connect():
shared['clients'] += 1
print(f"👤 Client connected. Total: {shared['clients']}")
@socketio.on('disconnect')
def handle_disconnect():
shared['clients'] -= 1
print(f"👤 Client disconnected. Total: {shared['clients']}")
if __name__ == '__main__':
print("🚀 Starting surfarray server...")
# Wait for thread
time.sleep(1)
print(f"📊 Initial: Thread alive={thread.is_alive()}, Frames={shared['frame_count']}")
socketio.run(
app,
host='0.0.0.0',
port=int(os.environ.get('PORT', 7860)),
debug=False,
use_reloader=False,
allow_unsafe_werkzeug=True
) |