add oc demo

metal/paddle-mobile-demo/paddle-mobile-demo/Base.lproj/Main.storyboard

 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="4MS-jc-i6A">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
@@ -50,10 +50,9 @@
                             <imageView userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="ZZh-fw-LwK">
                                 <rect key="frame" x="0.0" y="20" width="225" height="247"/>
                             </imageView>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Platform:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2EB-m2-a3L">
-                                <rect key="frame" x="10" y="538" width="68" height="24"/>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" horizontalCompressionResistancePriority="749" text="Platform:" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2EB-m2-a3L">
+                                <rect key="frame" x="10" y="538" width="35" height="24"/>
                                 <constraints>
-                                    <constraint firstAttribute="width" constant="68" id="Q5J-tq-JSX"/>
                                     <constraint firstAttribute="height" constant="24" id="SYv-As-Si8"/>
                                 </constraints>
                                 <fontDescription key="fontDescription" type="system" pointSize="20"/>
@@ -61,12 +60,12 @@
                                 <nil key="highlightedColor"/>
                             </label>
                             <pickerView contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="DlO-dk-RMr">
-                                <rect key="frame" x="88" y="510.5" width="287" height="80"/>
+                                <rect key="frame" x="55" y="510.5" width="320" height="80"/>
                                 <constraints>
                                     <constraint firstAttribute="height" constant="80" id="Sbi-05-Mwd"/>
                                 </constraints>
                             </pickerView>
-                            <pickerView contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="6MG-gv-hD5">
+                            <pickerView contentMode="scaleToFill" horizontalCompressionResistancePriority="749" translatesAutoresizingMaskIntoConstraints="NO" id="6MG-gv-hD5">
                                 <rect key="frame" x="85" y="401" width="290" height="80"/>
                                 <constraints>
                                     <constraint firstAttribute="height" constant="80" id="yAL-JY-G6b"/>
@@ -75,7 +74,6 @@
                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Models" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="avL-VK-Kha">
                                 <rect key="frame" x="10" y="429" width="65" height="24"/>
                                 <constraints>
-                                    <constraint firstAttribute="width" constant="65" id="6oA-g2-Xq4"/>
                                     <constraint firstAttribute="height" constant="24" id="EwE-B3-z2R"/>
                                 </constraints>
                                 <fontDescription key="fontDescription" type="system" pointSize="20"/>
@@ -236,7 +234,76 @@
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="-1127" y="-3"/>
+            <point key="canvasLocation" x="-1449" y="-3"/>
+        </scene>
+        <!--Load Pointer View Controller-->
+        <scene sceneID="56v-9i-I4d">
+            <objects>
+                <viewController id="4MS-jc-i6A" customClass="LoadPointerViewController" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="VbZ-nk-rJR">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="2p5-S3-M4T">
+                                <rect key="frame" x="16" y="63" width="240" height="128"/>
+                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
+                            </imageView>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="37q-nm-0H7">
+                                <rect key="frame" x="38" y="610" width="42" height="30"/>
+                                <constraints>
+                                    <constraint firstAttribute="height" constant="30" id="ofW-G3-KST"/>
+                                    <constraint firstAttribute="width" constant="42" id="pwd-tO-zcJ"/>
+                                </constraints>
+                                <state key="normal" title="Image"/>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="fAg-ai-yaA">
+                                <rect key="frame" x="119" y="610" width="34" height="30"/>
+                                <constraints>
+                                    <constraint firstAttribute="height" constant="30" id="IES-jf-Z1n"/>
+                                    <constraint firstAttribute="width" constant="34" id="jxK-Xn-WCE"/>
+                                </constraints>
+                                <state key="normal" title="Load"/>
+                                <connections>
+                                    <action selector="loaderButtonPressed:" destination="4MS-jc-i6A" eventType="touchUpInside" id="3cy-PD-aiE"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="pdS-6e-Pd1">
+                                <rect key="frame" x="185" y="610" width="49" height="30"/>
+                                <constraints>
+                                    <constraint firstAttribute="width" constant="49" id="ddY-uM-fzA"/>
+                                    <constraint firstAttribute="height" constant="30" id="yKd-YL-UML"/>
+                                </constraints>
+                                <state key="normal" title="Predict"/>
+                                <connections>
+                                    <action selector="predictButtonPressed:" destination="4MS-jc-i6A" eventType="touchUpInside" id="sOH-iT-s1w"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="DZa-sd-lY7">
+                                <rect key="frame" x="279" y="610" width="34" height="30"/>
+                                <constraints>
+                                    <constraint firstAttribute="width" constant="34" id="aSO-4q-PgA"/>
+                                    <constraint firstAttribute="height" constant="30" id="eAt-Uc-BxX"/>
+                                </constraints>
+                                <state key="normal" title="clear"/>
+                            </button>
+                        </subviews>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="vsb-FH-h7h" firstAttribute="bottom" secondItem="37q-nm-0H7" secondAttribute="bottom" constant="27" id="4Wf-Uh-gvr"/>
+                            <constraint firstItem="DZa-sd-lY7" firstAttribute="leading" secondItem="pdS-6e-Pd1" secondAttribute="trailing" constant="45" id="8dB-uI-cs9"/>
+                            <constraint firstItem="fAg-ai-yaA" firstAttribute="leading" secondItem="37q-nm-0H7" secondAttribute="trailing" constant="39" id="EAV-Oq-jeD"/>
+                            <constraint firstItem="vsb-FH-h7h" firstAttribute="bottom" secondItem="fAg-ai-yaA" secondAttribute="bottom" constant="27" id="Px0-A9-Eql"/>
+                            <constraint firstItem="pdS-6e-Pd1" firstAttribute="leading" secondItem="fAg-ai-yaA" secondAttribute="trailing" constant="32" id="ZUR-Nv-aNb"/>
+                            <constraint firstItem="vsb-FH-h7h" firstAttribute="bottom" secondItem="pdS-6e-Pd1" secondAttribute="bottom" constant="27" id="kPx-mt-ab9"/>
+                            <constraint firstItem="37q-nm-0H7" firstAttribute="leading" secondItem="vsb-FH-h7h" secondAttribute="leading" constant="38" id="trH-Fq-sSv"/>
+                            <constraint firstItem="vsb-FH-h7h" firstAttribute="bottom" secondItem="DZa-sd-lY7" secondAttribute="bottom" constant="27" id="yNJ-hq-2Qg"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="vsb-FH-h7h"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="hGb-Pb-icS" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-514" y="-3"/>
         </scene>
     </scenes>
     <resources>

metal/paddle-mobile-demo/paddle-mobile-demo/LoadPointerViewController.h

+//
+//  LoadPointerViewController.h
+//  paddle-mobile-demo
+//
+//  Created by Xiao,Haichun on 2018/9/19.
+//  Copyright © 2018年 orange. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface LoadPointerViewController : UIViewController
+
+@end

metal/paddle-mobile-demo/paddle-mobile-demo/LoadPointerViewController.m

+//
+//  LoadPointerViewController.m
+//  paddle-mobile-demo
+//
+//  Created by Xiao,Haichun on 2018/9/19.
+//  Copyright © 2018年 orange. All rights reserved.
+//
+
+#import "LoadPointerViewController.h"
+#import <Metal/Metal.h>
+#import "paddle-mobile-demo-Bridging-Header.h"
+
+@interface LoadPointerViewController ()
+
+@property (strong, nonatomic) id<MTLDevice> device;
+@property (strong, nonatomic) id<MTLTexture> texture;
+@property (strong, nonatomic) id<MTLCommandQueue> queue;
+@property (strong, nonatomic) PaddleMobileGPU *runner;
+@property (strong, nonatomic) ModelConfig *modelConfig;
+
+@end
+
+@implementation LoadPointerViewController
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+  
+  
+  self.device = MTLCreateSystemDefaultDevice();
+  
+  self.queue = [self.device newCommandQueue];
+  
+    // Do any additional setup after loading the view.
+  NSString *modelPath = [[NSBundle mainBundle] URLForResource:@"genet_model" withExtension:nil].path;
+  NSString *paramPath = [[NSBundle mainBundle] URLForResource:@"genet_params" withExtension:nil].path;
+
+  long fileSize;
+  FILE *fp;
+  fp = fopen([modelPath UTF8String], "rb");
+  fseek(fp, 0, SEEK_END);
+  fileSize = ftell(fp);
+  rewind(fp);
+  void *buffer = malloc(fileSize);
+  fread(buffer, 1, fileSize, fp);
+  fclose(fp);
+  
+  long paramfileSize;
+  FILE *parmaFilePointer;
+  parmaFilePointer = fopen([paramPath UTF8String], "rb");
+  fseek(parmaFilePointer, 0, SEEK_END);
+  paramfileSize = ftell(parmaFilePointer);
+  rewind(parmaFilePointer);
+  void *parmaBuffer = malloc(paramfileSize);
+  fread(parmaBuffer, 1, paramfileSize, parmaFilePointer);
+  fclose(parmaFilePointer);
+  
+  _modelConfig = [[ModelConfig alloc] init];
+  _modelConfig.means = @[[NSNumber numberWithFloat:128.0], [NSNumber numberWithFloat:128.0], [NSNumber numberWithFloat:128.0]];
+  _modelConfig.scale = 0.017;
+  _modelConfig.dims = @[[NSNumber numberWithFloat:1], [NSNumber numberWithFloat:128.], [NSNumber numberWithFloat:128.0],[NSNumber numberWithFloat:3.0]];
+  _modelConfig.modelPointer = buffer;
+  _modelConfig.modelSize = (int)fileSize;
+  _modelConfig.paramPointer = parmaBuffer;
+  _modelConfig.paramSize = (int)paramfileSize;
+}
+- (IBAction)loaderButtonPressed:(id)sender {
+  _runner = [[PaddleMobileGPU alloc] initWithCommandQueue:self.queue net:GenetType modelConfig:_modelConfig];
+  [_runner load];
+}
+- (IBAction)predictButtonPressed:(id)sender {
+  [self predict];
+}
+
+- (id<MTLTexture>) createTextureFromImage:(UIImage*) image device:(id<MTLDevice>) device
+{
+  image  =[UIImage imageWithCGImage:[image CGImage]
+                              scale:[image scale]
+                        orientation: UIImageOrientationLeft];
+  
+  NSLog(@"orientation and size and stuff %ld %f %f", (long)image.imageOrientation, image.size.width, image.size.height);
+  
+  CGImageRef imageRef = image.CGImage;
+  
+  size_t width = self.view.frame.size.width;
+  size_t height = self.view.frame.size.height;
+  
+  size_t bitsPerComponent = CGImageGetBitsPerComponent(imageRef);
+  size_t bitsPerPixel = CGImageGetBitsPerPixel(imageRef);
+  
+  CGColorSpaceRef colorSpace = CGImageGetColorSpace(imageRef);
+  
+  CGImageAlphaInfo alphaInfo = CGImageGetAlphaInfo(imageRef);
+  
+  //  NSLog(@"%@ %u", colorSpace, alphaInfo);
+  
+  CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault | alphaInfo;
+  //    NSLog(@"bitmap info %u", bitmapInfo);
+  
+  
+  CGContextRef context = CGBitmapContextCreate( NULL, width, height, bitsPerComponent, (bitsPerPixel / 8) * width, colorSpace, bitmapInfo);
+  
+  if( !context )
+  {
+    NSLog(@"Failed to load image, probably an unsupported texture type");
+    return nil;
+  }
+  
+  CGContextDrawImage( context, CGRectMake( 0, 0, width, height ), image.CGImage);
+  
+  
+  MTLPixelFormat format = MTLPixelFormatRGBA8Unorm;
+  
+  MTLTextureDescriptor *texDesc = [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:format
+                                                                                     width:width
+                                                                                    height:height
+                                                                                 mipmapped:NO];
+  id<MTLTexture> texture = [device newTextureWithDescriptor:texDesc];
+  
+  [texture replaceRegion:MTLRegionMake2D(0, 0, width, height)
+             mipmapLevel:0
+               withBytes:CGBitmapContextGetData(context)
+             bytesPerRow:4 * width];
+  
+  return texture;
+}
+
+- (void)predict {
+  _texture = [self createTextureFromImage:[UIImage imageNamed:@"hand.jpg"] device:self.device];
+  [_runner predict:_texture withCompletion:^(BOOL success , NSArray<NSNumber *> *result) {
+    if (success) {
+      for (int i = 0; i < result.count; i ++) {
+        NSNumber *number = result[i];
+        NSLog(@"result %d = %f:",i, [number floatValue]);
+      }
+    }
+  }];
+}
+
+- (void)didReceiveMemoryWarning {
+    [super didReceiveMemoryWarning];
+    // Dispose of any resources that can be recreated.
+}
+
+/*
+#pragma mark - Navigation
+
+// In a storyboard-based application, you will often want to do a little preparation before navigation
+- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
+    // Get the new view controller using [segue destinationViewController].
+    // Pass the selected object to the new view controller.
+}
+*/
+
+@end