WIP - add extractor, generate snippet_data

node_modules/@jimp/bmp/src/index.js

@@ -0,0 +1,63 @@
+import BMP from 'bmp-js';
+import { scan } from '@jimp/utils';
+
+const MIME_TYPE = 'image/bmp';
+const MIME_TYPE_SECOND = 'image/x-ms-bmp';
+
+function toAGBR(image) {
+  return scan(image, 0, 0, image.bitmap.width, image.bitmap.height, function(
+    x,
+    y,
+    index
+  ) {
+    const red = this.bitmap.data[index + 0];
+    const green = this.bitmap.data[index + 1];
+    const blue = this.bitmap.data[index + 2];
+    const alpha = this.bitmap.data[index + 3];
+
+    this.bitmap.data[index + 0] = alpha;
+    this.bitmap.data[index + 1] = blue;
+    this.bitmap.data[index + 2] = green;
+    this.bitmap.data[index + 3] = red;
+  }).bitmap;
+}
+
+function fromAGBR(bitmap) {
+  return scan({ bitmap }, 0, 0, bitmap.width, bitmap.height, function(
+    x,
+    y,
+    index
+  ) {
+    const alpha = this.bitmap.data[index + 0];
+    const blue = this.bitmap.data[index + 1];
+    const green = this.bitmap.data[index + 2];
+    const red = this.bitmap.data[index + 3];
+
+    this.bitmap.data[index + 0] = red;
+    this.bitmap.data[index + 1] = green;
+    this.bitmap.data[index + 2] = blue;
+    this.bitmap.data[index + 3] = bitmap.is_with_alpha ? alpha : 0xff;
+  }).bitmap;
+}
+
+const decode = data => fromAGBR(BMP.decode(data));
+const encode = image => BMP.encode(toAGBR(image)).data;
+
+export default () => ({
+  mime: { [MIME_TYPE]: ['bmp'] },
+
+  constants: {
+    MIME_BMP: MIME_TYPE,
+    MIME_X_MS_BMP: MIME_TYPE_SECOND
+  },
+
+  decoders: {
+    [MIME_TYPE]: decode,
+    [MIME_TYPE_SECOND]: decode
+  },
+
+  encoders: {
+    [MIME_TYPE]: encode,
+    [MIME_TYPE_SECOND]: encode
+  }
+});