1 files changed, 58 insertions, 1 deletions

diff --git a/scene/resources/bit_map.cpp b/scene/resources/bit_map.cpp
index d2e4d28b44..e4a64a1de1 100644
--- a/scene/resources/bit_map.cpp
+++ b/scene/resources/bit_map.cpp
@@ -96,7 +96,7 @@ int BitMap::get_true_bit_count() const {
 	const uint8_t *d = bitmask.ptr();
 	int c = 0;
 
-	//fast, almot branchless version
+	//fast, almost branchless version
 
 	for (int i = 0; i < ds; i++) {
 
@@ -106,6 +106,7 @@ int BitMap::get_true_bit_count() const {
 		c += (d[i] & (1 << 4)) >> 4;
 		c += (d[i] & (1 << 3)) >> 3;
 		c += (d[i] & (1 << 2)) >> 2;
+		c += (d[i] & (1 << 1)) >> 1;
 		c += d[i] & 1;
 	}
 
@@ -594,6 +595,62 @@ Array BitMap::_opaque_to_polygons_bind(const Rect2 &p_rect, float p_epsilon) con
 	return result_array;
 }
 
+void BitMap::resize(const Size2 &p_new_size) {
+
+	Ref<BitMap> new_bitmap;
+	new_bitmap.instance();
+	new_bitmap->create(p_new_size);
+	int lw = MIN(width, p_new_size.width);
+	int lh = MIN(height, p_new_size.height);
+	for (int x = 0; x < lw; x++) {
+		for (int y = 0; y < lh; y++) {
+			new_bitmap->set_bit(Vector2(x, y), get_bit(Vector2(x, y)));
+		}
+	}
+
+	width = new_bitmap->width;
+	height = new_bitmap->height;
+	bitmask = new_bitmap->bitmask;
+}
+
+Ref<Image> BitMap::convert_to_image() const {
+
+	Ref<Image> image;
+	image.instance();
+	image->create(width, height, false, Image::FORMAT_L8);
+	image->lock();
+	for (int i = 0; i < width; i++) {
+		for (int j = 0; j < height; j++) {
+			image->set_pixel(i, j, get_bit(Point2(i, j)) ? Color(1, 1, 1) : Color(0, 0, 0));
+		}
+	}
+
+	image->unlock();
+
+	return image;
+}
+void BitMap::blit(const Vector2 &p_pos, const Ref<BitMap> &p_bitmap) {
+
+	int x = p_pos.x;
+	int y = p_pos.y;
+	int w = p_bitmap->get_size().width;
+	int h = p_bitmap->get_size().height;
+
+	for (int i = 0; i < w; i++) {
+		for (int j = 0; j < h; j++) {
+			int px = x + i;
+			int py = y + j;
+			if (px < 0 || px >= width)
+				continue;
+			if (py < 0 || py >= height)
+				continue;
+			if (p_bitmap->get_bit(Vector2(i, j))) {
+				set_bit(Vector2(x, y), true);
+			}
+		}
+	}
+}
+
 void BitMap::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("create", "size"), &BitMap::create);