Fix inverted flipped-90 and flipped-270

render/matrix.c

@@ -105,16 +105,16 @@ static const float transforms[][4] = {
 		0.0f, 1.0f,
 	},
 	[WL_OUTPUT_TRANSFORM_FLIPPED_90] = {
-		0.0f, 1.0f,
+		0.0f, -1.0f,
-		1.0f, 0.0f,
+		-1.0f, 0.0f,
 	},
 	[WL_OUTPUT_TRANSFORM_FLIPPED_180] = {
 		1.0f, 0.0f,
 		0.0f, -1.0f,
 	},
 	[WL_OUTPUT_TRANSFORM_FLIPPED_270] = {
-		0.0f, -1.0f,
+		0.0f, 1.0f,
-		-1.0f, 0.0f,
+		1.0f, 0.0f,
 	},
 };
 

types/wlr_box.c

@@ -99,16 +99,16 @@ void wlr_box_transform(struct wlr_box *box,
 		dest->y = box->y;
 		break;
 	case WL_OUTPUT_TRANSFORM_FLIPPED_90:
-		dest->x = box->y;
+		dest->x = box->height - box->y;
-		dest->y = box->x;
+		dest->y = box->width - box->x;
 		break;
 	case WL_OUTPUT_TRANSFORM_FLIPPED_180:
 		dest->x = box->x;
 		dest->y = box->height - box->y;
 		break;
 	case WL_OUTPUT_TRANSFORM_FLIPPED_270:
-		dest->x = box->height - box->y;
+		dest->x = box->y;
-		dest->y = box->width - box->x;
+		dest->y = box->x;
 		break;
 	}
 }