Reorganisation fichiers

PacoMouseCYD/Platformio/SD/js/bgr565.js

@@ -0,0 +1,49 @@
+document.getElementById('convertBtn').onclick = function() {
+    const fileInput = document.getElementById('imageInput');
+    const width = parseInt(document.getElementById('width').value, 10);
+    const height = parseInt(document.getElementById('height').value, 10);
+    if (!fileInput.files.length) {
+        alert('Please select an image file.');
+        return;
+    }
+    const file = fileInput.files[0];
+    const reader = new FileReader();
+    reader.onload = function(e) {
+        const img = new Image();
+        img.onload = function() {
+            const canvas = document.getElementById('canvas');
+            canvas.width = width;
+            canvas.height = height;
+            const ctx = canvas.getContext('2d');
+            ctx.clearRect(0, 0, width, height);
+            ctx.drawImage(img, 0, 0, width, height);
+            // Preview
+            document.getElementById('preview').innerHTML = '';
+            const previewImg = new Image();
+            previewImg.src = canvas.toDataURL();
+            document.getElementById('preview').appendChild(previewImg);
+            // Get pixel data
+            const imageData = ctx.getImageData(0, 0, width, height).data;
+            const buf = new Uint8Array(width * height * 2);
+            for (let i = 0, j = 0; i < imageData.length; i += 4, j += 2) {
+                let r = imageData[i];
+                let g = imageData[i+1];
+                let b = imageData[i+2];
+                // Convert to BGR565
+                let bgr565 = ((b & 0xF8) << 8) | ((g & 0xFC) << 3) | (r >> 3);
+                // Invert
+                bgr565 = 0xFFFF - bgr565;
+                buf[j] = bgr565 & 0xFF;
+                buf[j+1] = (bgr565 >> 8) & 0xFF;
+            }
+            // Download
+            const blob = new Blob([buf], {type: 'application/octet-stream'});
+            const a = document.createElement('a');
+            a.href = URL.createObjectURL(blob);
+            a.download = file.name.replace(/\.[^.]+$/, '') + `_${width}x${height}_bgr565inv.raw`;
+            a.click();
+        };
+        img.src = e.target.result;
+    };
+    reader.readAsDataURL(file);
+};