339 lines
12 KiB
PHP
339 lines
12 KiB
PHP
<?php
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ini_set('max_execution_time', '300');
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header('Content-Type: text/html; charset=iso-8859-1');
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$response = "";
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$generated_image = "";
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$prompt = "";
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$width = 512;
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$height = 512;
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$steps = 20;
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$cfg_scale = 7.5;
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$sampler = "Euler";
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$error_message = "";
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$success_message = "";
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$processed_prompt = "";
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// File to store saved prompts
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$saved_prompts_file = 'saved-prompts.json';
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// Load saved prompts
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function loadSavedPrompts() {
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global $saved_prompts_file;
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if (file_exists($saved_prompts_file)) {
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$json = file_get_contents($saved_prompts_file);
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return json_decode($json, true) ?: array();
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}
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return array();
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}
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// Save a new prompt
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function savePrompt($prompt_text, $prompt_name) {
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global $saved_prompts_file;
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$prompts = loadSavedPrompts();
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$prompts[$prompt_name] = $prompt_text;
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file_put_contents($saved_prompts_file, json_encode($prompts, JSON_PRETTY_PRINT));
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}
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$saved_prompts = loadSavedPrompts();
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// List of available samplers
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$samplers = array(
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"Euler",
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"Euler a",
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"Heun",
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"DPM2",
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"DPM2 a",
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"DPM++ 2S a",
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"DPM++ 2M",
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"DPM++ SDE",
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"DPM++ 2M SDE",
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"DPM++ 3M SDE",
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"DPM fast",
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"DPM adaptive",
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"LMS",
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"DPM++ SDE Karras",
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"DPM++ 2M SDE Karras",
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"DPM++ 3M SDE Karras",
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"DDIM",
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"PLMS"
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);
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if ($_SERVER["REQUEST_METHOD"] == "POST") {
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// Handle prompt saving
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if (isset($_POST['save_prompt']) && isset($_POST['prompt_name'])) {
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$prompt_to_save = trim($_POST['prompt']);
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$prompt_name = trim($_POST['prompt_name']);
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if (!empty($prompt_to_save) && !empty($prompt_name)) {
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savePrompt($prompt_to_save, $prompt_name);
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$success_message = "Prompt saved successfully!";
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$saved_prompts = loadSavedPrompts(); // Reload prompts
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} else {
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$error_message = "Both prompt and prompt name are required to save.";
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}
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}
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// Handle image generation
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else {
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$prompt = isset($_POST['prompt']) ? $_POST['prompt'] : '';
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$width = isset($_POST['width']) ? (int)$_POST['width'] : 512;
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$height = isset($_POST['height']) ? (int)$_POST['height'] : 512;
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$steps = isset($_POST['steps']) ? (int)$_POST['steps'] : 20;
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$cfg_scale = isset($_POST['cfg_scale']) ? (float)$_POST['cfg_scale'] : 7.5;
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$sampler = isset($_POST['sampler']) ? $_POST['sampler'] : 'Euler';
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// Check for angle brackets in the prompt
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if (strpos($prompt, '<') !== false || strpos($prompt, '>') !== false) {
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$error_message = "Error: Angle brackets are not allowed in the prompt. Please use square brackets [lora-name:weight] for LORAs.";
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}
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// Only proceed if there's no error
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elseif (!empty($prompt)) {
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// Process the prompt to handle LORA syntax
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$processed_prompt = preg_replace('/\[([\w\s\-]+?):([\d\.]+)\]/', '<lora:$1:$2>', $prompt);
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$data = array(
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'prompt' => $processed_prompt,
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'steps' => $steps,
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'width' => $width,
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'height' => $height,
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'cfg_scale' => $cfg_scale,
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'sampler_name' => $sampler,
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'override_settings' => new stdClass(),
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'override_settings_restore_afterwards' => true
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);
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// Replace 127.0.0.1 with your Stable diffusion server's IP if running externally
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$ch = curl_init('http://127.0.0.1:7860/sdapi/v1/txt2img');
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_POST, true);
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curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
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curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
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$result = curl_exec($ch);
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if (curl_errno($ch)) {
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$response = 'Error: ' . curl_error($ch);
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} else {
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$decoded = json_decode($result, true);
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if (isset($decoded['images'][0])) {
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$image_data = base64_decode($decoded['images'][0]);
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// Save original PNG temporarily
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$temp_png = 'temp_' . time() . '_' . bin2hex(random_bytes(8)) . '.png';
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file_put_contents($temp_png, $image_data);
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// Create output JPG filename
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$generated_image = 'generated_' . time() . '_' . bin2hex(random_bytes(8)) . '.jpg';
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// Build ImageMagick convert command with optimization
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$quality = 85; // Balanced quality setting
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$cmd = "convert \"$temp_png\" -strip -interlace Plane -gaussian-blur 0.05 -quality $quality ";
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$cmd .= "-sampling-factor 4:2:0 \"$generated_image\" 2>&1";
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// Execute conversion
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$output = [];
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$returnVar = 0;
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exec($cmd, $output, $returnVar);
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if ($returnVar === 0 && file_exists($generated_image)) {
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// Get file sizes for comparison
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$originalSize = filesize($temp_png);
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$convertedSize = filesize($generated_image);
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// Clean up temporary PNG file
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if (file_exists($temp_png)) {
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unlink($temp_png);
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}
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// Clean up old generated files
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foreach (glob("generated_*.png") as $file) {
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if ($file != $generated_image && (time() - filemtime($file)) > 3600) {
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unlink($file);
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}
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}
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// Store size information for display
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$size_info = array(
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'original' => round($originalSize / 1024, 2),
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'converted' => round($convertedSize / 1024, 2),
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'reduction' => round((($originalSize - $convertedSize) / $originalSize) * 100, 2)
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);
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} else {
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// If conversion fails, keep the original PNG
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if (file_exists($temp_png)) {
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$generated_image = $temp_png;
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}
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$error_message = "Image conversion failed. Using original PNG format.";
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}
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}
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}
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curl_close($ch);
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}
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}
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} else if ($_SERVER["REQUEST_METHOD"] == "GET" && isset($_GET['load_prompt'])) {
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// Load saved prompt into textarea
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$saved_prompts = loadSavedPrompts();
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$prompt = isset($saved_prompts[$_GET['load_prompt']]) ? $saved_prompts[$_GET['load_prompt']] : '';
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}
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?>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<html>
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<head>
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<title>Stable Diffusion Image Generator</title>
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</head>
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<body bgcolor="#FFFFFF">
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<h1>Stable Diffusion Image Generator</h1>
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<?php if (!empty($error_message)): ?>
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<table border="1" cellpadding="4" cellspacing="0" width="100%" bgcolor="#FFE4E1">
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<tr>
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<td><font color="#8B0000"><?php echo htmlspecialchars($error_message); ?></font></td>
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</tr>
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</table>
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<br>
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<?php endif; ?>
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<?php if (!empty($success_message)): ?>
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<table border="1" cellpadding="4" cellspacing="0" width="100%" bgcolor="#E0FFE0">
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<tr>
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<td><font color="#006400"><?php echo htmlspecialchars($success_message); ?></font></td>
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</tr>
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</table>
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<br>
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<?php endif; ?>
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<table border="1" cellpadding="4" cellspacing="0" width="100%">
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<tr bgcolor="#F0F0F0">
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<td>
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<h3>How to use LORAs:</h3>
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<p>Include LORAs using: [lora-name:weight]<br>
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Example: a beautiful landscape by [my-artist-lora:0.8]<br>
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Weight values: 0.1 to 1.0<br>
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Note: Do not use angle brackets (< >). Use square brackets instead.</p>
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</td>
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</tr>
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</table>
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<br>
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<table border="1" cellpadding="4" cellspacing="0" width="100%">
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<tr>
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<td>
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<b>Saved Prompts</b><br>
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<form method="get" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>">
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<select name="load_prompt">
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<option value="">Select a saved prompt</option>
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<?php foreach ($saved_prompts as $name => $saved_prompt): ?>
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<option value="<?php echo htmlspecialchars($name); ?>">
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<?php echo htmlspecialchars($name); ?>
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</option>
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<?php endforeach; ?>
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</select>
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<input type="submit" value="Load Prompt">
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</form>
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</td>
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</tr>
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</table>
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<br>
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<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>">
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<table border="0" cellpadding="4" cellspacing="0" width="100%">
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<tr>
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<td colspan="2"><b>Enter your prompt:</b><br>
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<textarea name="prompt" rows="6" cols="60"><?php echo htmlspecialchars($prompt); ?></textarea></td>
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</tr>
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<tr>
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<td><b>Width:</b><br>
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<input type="text" name="width" value="<?php echo $width; ?>" size="6"></td>
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<td><b>Height:</b><br>
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<input type="text" name="height" value="<?php echo $height; ?>" size="6"></td>
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</tr>
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<tr>
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<td><b>Steps:</b><br>
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<input type="text" name="steps" value="<?php echo $steps; ?>" size="6"></td>
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<td><b>CFG Scale:</b><br>
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<input type="text" name="cfg_scale" value="<?php echo $cfg_scale; ?>" size="6"></td>
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</tr>
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<tr>
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<td colspan="2"><b>Sampler:</b><br>
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<select name="sampler">
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<?php foreach ($samplers as $s): ?>
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<option value="<?php echo htmlspecialchars($s); ?>" <?php echo $s === $sampler ? 'selected' : ''; ?>>
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<?php echo htmlspecialchars($s); ?>
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</option>
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<?php endforeach; ?>
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</select></td>
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</tr>
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<tr>
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<td colspan="2" align="center">
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<input type="submit" value="Generate Image">
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</td>
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</tr>
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</table>
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</form>
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<br>
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<table border="1" cellpadding="4" cellspacing="0" width="100%">
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<tr bgcolor="#F0F0F0">
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<td>
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<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>">
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<b>Save Current Prompt</b><br>
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Prompt Name: <input type="text" name="prompt_name" size="30"><br>
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<input type="hidden" name="prompt" value="<?php echo htmlspecialchars($prompt); ?>">
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<input type="submit" name="save_prompt" value="Save Prompt">
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</form>
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</td>
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</tr>
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</table>
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<?php if (!empty($generated_image)): ?>
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<br>
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<table border="1" cellpadding="4" cellspacing="0" width="100%">
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<tr>
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<td>
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<h2>Generated Image:</h2>
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<img width="250" src="<?php echo htmlspecialchars($generated_image); ?>" alt="Generated image">
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<br>
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<a href="<?php echo htmlspecialchars($generated_image); ?>">Download Generated Image</a>
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<?php if (isset($size_info)): ?>
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<p>
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Original size: <?php echo $size_info['original']; ?> KB<br>
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Converted size: <?php echo $size_info['converted']; ?> KB<br>
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Size reduction: <?php echo $size_info['reduction']; ?>%
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</p>
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<?php endif; ?>
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<p><b>Parameters used:</b><br>
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Prompt: <?php echo htmlspecialchars($prompt); ?><br>
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<?php if (!empty($processed_prompt)): ?>
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Processed Prompt: <?php echo htmlspecialchars($processed_prompt); ?><br>
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<?php endif; ?>
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Size: <?php echo $width; ?>x<?php echo $height; ?><br>
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Steps: <?php echo $steps; ?><br>
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CFG Scale: <?php echo $cfg_scale; ?><br>
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Sampler: <?php echo htmlspecialchars($sampler); ?></p>
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</td>
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</tr>
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</table>
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<?php endif; ?>
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<?php if (!empty($response)): ?>
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<br>
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<table border="1" cellpadding="4" cellspacing="0" width="100%">
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<tr>
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<td>
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<h2>Error:</h2>
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<p><?php echo htmlspecialchars($response); ?></p>
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</td>
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</tr>
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</table>
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<?php endif; ?>
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</body>
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</html>
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