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Examples: Removed old example_apple/ + tweak comments (#1873)

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omar
2018-07-08 10:57:16 +02:00
parent 839e4d34bd
commit 569e0f07f1
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examples/README.txt
+16 -26
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@@ -90,22 +90,17 @@ Most the example bindings are split in 2 parts:
- Road-map: Dear ImGui 1.70 (WIP currently in the "viewport" branch) will allows imgui windows to be
seamlessly detached from the main application window. This is achieved using an extra layer to the
platform and renderer bindings, which allows imgui to communicate platform-specific requests such as
"create an additional OS window", "create a render context", "get the OS position of this window" etc.
When using this feature, the coupling with your OS/renderer becomes much tighter than a regular imgui
integration. It is also much more complicated and require more work to integrate correctly.
If you are new to imgui and you are trying to integrate it into your application, first try to ignore
everything related to Viewport and Platform Windows. You'll be able to come back to it later!
Note that if you decide to use unmodified imgui_impl_xxxx.cpp files, you will automatically benefit
from improvements and fixes related to viewports and platform windows without extra work on your side.
See 'ImGuiPlatformIO' for details.
platform and renderer bindings, which allows imgui to communicate platform-specific requests.
If you decide to use unmodified imgui_impl_xxxx.cpp files, you will automatically benefit from
improvements and fixes related to viewports and platform windows without extra work on your side.
List of Platforms Bindings in this repository:
imgui_impl_glfw.cpp ; GLFW (Windows, macOS, Linux, etc.) http://www.glfw.org/
imgui_impl_osx.mm ; macOS native API
imgui_impl_sdl.cpp ; SDL2 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
imgui_impl_win32.cpp ; Windows native API (Windows)
imgui_impl_win32.cpp ; Win32 native API (Windows)
imgui_impl_freeglut.cpp ; FreeGLUT (if you really miss the 90's)
List of Renderer Bindings in this repository:
@@ -168,6 +163,17 @@ example_win32_directx12/
This is quite long and tedious, because: DirectX12.
= main.cpp + imgui_impl_win32.cpp + imgui_impl_dx12.cpp
example_apple_metal/
OSX & iOS + Metal.
It is based on the "cross-platform" game template provided with Xcode as of Xcode 9.
Note that instead of the OSX bindings, you may want to use GLFW or SDL which will also support Windows, Linux along with OSX.
= game template + imgui_impl_osx.mm + imgui_impl_metal.mm
example_apple_opengl2/
OSX + OpenGL2.
Note that instead of the OSX bindings, you may want to use GLFW or SDL which will also support Windows, Linux along with OSX.
= main.mm + imgui_impl_osx.mm + imgui_impl_opengl2.cpp
example_glfw_opengl2/
**DO NOT USE OPENGL2 CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
**Prefer using OPENGL3 code (with gl3w/glew/glad, you can replace the OpenGL function loader)**
@@ -210,22 +216,6 @@ example_sdl_vulkan/
This is quite long and tedious, because: Vulkan.
= main.cpp + imgui_impl_sdl.cpp + imgui_impl_vulkan.cpp
example_apple_metal/
OSX & iOS + Metal.
It is based on the cross-platform game template provided with Xcode as of Xcode 9.
= game template + imgui_impl_osx.mm + imgui_impl_metal.mm
example_apple_opengl2/
OSX Cocoa + OpenGL2.
= main.mm + imgui_impl_osx.mm + imgui_impl_opengl2.cpp
example_apple/
OSX & iOS example + OpenGL2.
THIS EXAMPLE HAS NOT BEEN MAINTAINED PROPERLY AND NEEDS A MAINTAINER.
Consider using the example_glfw_opengl3/ or example_osx_opengl2/ example instead.
On iOS, Using Synergy to access keyboard/mouse data from server computer.
Synergy keyboard integration is rather hacky.
example_allegro5/
Allegro 5 example.
= main.cpp + imgui_impl_allegro5.cpp
examples/example_apple/README.md
-43
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@@ -1,43 +0,0 @@
# iOS / OSX example
## Introduction
THIS EXAMPLE HAS NOT BEEN MAINTAINED PROPERLY AND NEEDS A MAINTAINER.
This example is the default XCode "OpenGL" example code, modified to support ImGui and [Synergy](http://synergy-project.org/) to share mouse/keyboard on an iOS device.
It is a rather complex and messy example because of all of the faff required to get an XCode/iOS application running. Refer to the regular OpenGL examples if you want to learn about integrating ImGui. **The code in example_glfw_opengl3/ should also work on OS X and is much simpler.** This is an integration for iOS with Synergy.
Synergy (remote keyboard/mouse) is not required, but it's pretty hard to use ImGui without it. Synergy includes a "uSynergy" library that allows embedding a synergy client, this is what is used here. ImGui supports "TouchPadding", and this is enabled when Synergy is not active.
## How to Use on iOS
* In Synergy, go to Preferences, and uncheck "Use SSL encryption"
* Run the example app.
* Tap the "servername" button in the corner
* Enter the name or the IP of your synergy host
* If you had previously connected to a server, you may need to kill and re-start the app.
## How to Build on OSX
* Make sure you have install `brew`, if not, please refer to [Homebrew Website](http://brew.sh)
* Run the command: `brew install glfw3`
* Double click `imguiex.xcodeproj` and select `imguiex-osx` scheme
* Click `Run` button
## Notes and TODOs
Things that would be nice but I didn't get around to doing:
* iOS software keyboard not supported for text inputs
* iOS hardware (bluetooth) keyboards not supported
* Graceful disconnect/reconnect from uSynergy.
* Copy/Paste not well-supported
## C++ on iOS / OSX
ImGui is a c++ library. If you want to include it directly, rename your Obj-C file to have the ".mm" extension.
Alternatively, you can wrap your debug code in a C interface, this is what I am demonstrating here with the "debug_hud.h" interface. Either approach works, use whatever you prefer.
In my case, most of my game code is already in C++ so it's not really an issue and I can use ImGui directly.
examples/example_apple/imguiex-ios/AppDelegate.h
-13
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@@ -1,13 +0,0 @@
//
// AppDelegate.h
// imguiex
#import <UIKit/UIKit.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@end
examples/example_apple/imguiex-ios/AppDelegate.m
-41
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@@ -1,41 +0,0 @@
//
// AppDelegate.m
// imguiex
#import "AppDelegate.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
return YES;
}
- (void)applicationWillResignActive:(UIApplication *)application {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}
- (void)applicationDidEnterBackground:(UIApplication *)application {
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
// Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
- (void)applicationWillTerminate:(UIApplication *)application {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}
@end
examples/example_apple/imguiex-ios/Base.lproj/LaunchScreen.xib
-32
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@@ -1,32 +0,0 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="7706" systemVersion="14D136" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7703"/>
<capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
</dependencies>
<objects>
<placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
<placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
<view contentMode="scaleToFill" id="iN0-l3-epB">
<rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<subviews>
<label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="imguiex" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
<rect key="frame" x="20" y="140" width="441" height="43"/>
<fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
<color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
<nil key="highlightedColor"/>
</label>
</subviews>
<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
<constraints>
<constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
<constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
<constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
</constraints>
<nil key="simulatedStatusBarMetrics"/>
<freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
<point key="canvasLocation" x="548" y="455"/>
</view>
</objects>
</document>
examples/example_apple/imguiex-ios/Base.lproj/Main.storyboard
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@@ -1,44 +0,0 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="7706" systemVersion="14D136" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BV1-FR-VrT">
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7703"/>
<capability name="Constraints to layout margins" minToolsVersion="6.0"/>
</dependencies>
<scenes>
<!--Game View Controller-->
<scene sceneID="tXr-a1-R10">
<objects>
<viewController id="BV1-FR-VrT" customClass="GameViewController" sceneMemberID="viewController">
<layoutGuides>
<viewControllerLayoutGuide type="top" id="8aa-yV-Osq"/>
<viewControllerLayoutGuide type="bottom" id="qHh-Mt-9TT"/>
</layoutGuides>
<view key="view" contentMode="scaleToFill" id="3se-qz-xqx" customClass="GLKView">
<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<subviews>
<button opaque="NO" contentMode="scaleToFill" misplaced="YES" contentHorizontalAlignment="left" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="piS-r7-VWh">
<rect key="frame" x="16" y="550" width="136" height="30"/>
<state key="normal" title="servername">
<color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
</state>
<connections>
<action selector="onServernameTapped:" destination="BV1-FR-VrT" eventType="touchUpInside" id="9sO-yv-0be"/>
</connections>
</button>
</subviews>
<color key="backgroundColor" white="0.0" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
<constraints>
<constraint firstItem="qHh-Mt-9TT" firstAttribute="top" secondItem="piS-r7-VWh" secondAttribute="bottom" constant="20" id="JxW-fj-qni"/>
<constraint firstItem="piS-r7-VWh" firstAttribute="leading" secondItem="3se-qz-xqx" secondAttribute="leadingMargin" constant="20" id="w5q-gx-tJj"/>
</constraints>
</view>
<connections>
<outlet property="btnServername" destination="piS-r7-VWh" id="9iV-ef-l6M"/>
</connections>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="SZV-WD-TEh" sceneMemberID="firstResponder"/>
</objects>
</scene>
</scenes>
</document>
examples/example_apple/imguiex-ios/GameViewController.h
-12
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@@ -1,12 +0,0 @@
//
// GameViewController.h
// imguiex
// This is the OpenGL Example template from XCode, modified to support ImGui
#import <UIKit/UIKit.h>
#import <GLKit/GLKit.h>
@interface GameViewController : GLKViewController
@end
examples/example_apple/imguiex-ios/GameViewController.m
-472
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@@ -1,472 +0,0 @@
//
// GameViewController.m
// imguiex
//
#import "GameViewController.h"
#import <OpenGLES/ES2/glext.h>
#import "imgui_impl_ios.h"
#import "debug_hud.h"
#define BUFFER_OFFSET(i) ((char *)NULL + (i))
#define SERVERNAME_KEY @"ServerName"
#define SERVERNAME_ALERT_TAG 10
// Uniform index.
enum
{
UNIFORM_MODELVIEWPROJECTION_MATRIX,
UNIFORM_NORMAL_MATRIX,
UNIFORM_DIFFUSE_COLOR,
UNIFORM_COUNT_
};
static GLint uniforms[UNIFORM_COUNT_];
// Attribute index.
enum
{
ATTRIB_VERTEX,
ATTRIB_NORMAL,
ATTRIB_COUNT_
};
static const GLfloat gCubeVertexData[216] =
{
// Data layout for each line below is:
// pos x/y/z, normal x/y/z,
0.5f, -0.5f, -0.5f, 1.0f, 0.0f, 0.0f,
0.5f, 0.5f, -0.5f, 1.0f, 0.0f, 0.0f,
0.5f, -0.5f, 0.5f, 1.0f, 0.0f, 0.0f,
0.5f, -0.5f, 0.5f, 1.0f, 0.0f, 0.0f,
0.5f, 0.5f, -0.5f, 1.0f, 0.0f, 0.0f,
0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 0.0f,
0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f,
-0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f,
0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f,
0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f,
-0.5f, 0.5f, -0.5f, 0.0f, 1.0f, 0.0f,
-0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f,
-0.5f, 0.5f, -0.5f, -1.0f, 0.0f, 0.0f,
-0.5f, -0.5f, -0.5f, -1.0f, 0.0f, 0.0f,
-0.5f, 0.5f, 0.5f, -1.0f, 0.0f, 0.0f,
-0.5f, 0.5f, 0.5f, -1.0f, 0.0f, 0.0f,
-0.5f, -0.5f, -0.5f, -1.0f, 0.0f, 0.0f,
-0.5f, -0.5f, 0.5f, -1.0f, 0.0f, 0.0f,
-0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f,
0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f,
-0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f,
-0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f,
0.5f, -0.5f, -0.5f, 0.0f, -1.0f, 0.0f,
0.5f, -0.5f, 0.5f, 0.0f, -1.0f, 0.0f,
0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
-0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
-0.5f, 0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
-0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f,
0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
-0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
-0.5f, -0.5f, -0.5f, 0.0f, 0.0f, -1.0f,
-0.5f, 0.5f, -0.5f, 0.0f, 0.0f, -1.0f
};
@interface GameViewController () <UIAlertViewDelegate>
{
GLuint _program;
GLKMatrix4 _modelViewProjectionMatrix;
GLKMatrix3 _normalMatrix;
float _rotation;
GLuint _vertexArray;
GLuint _vertexBuffer;
DebugHUD _hud;
}
@property (strong, nonatomic) EAGLContext* context;
@property (strong, nonatomic) GLKBaseEffect* effect;
@property (strong, nonatomic) ImGuiHelper* imgui;
@property (weak, nonatomic) IBOutlet UIButton* btnServername;
@property (strong, nonatomic) NSString* serverName;
- (IBAction)onServernameTapped:(id)sender;
- (void)setupGL;
- (void)tearDownGL;
- (BOOL)loadShaders;
- (BOOL)compileShader:(GLuint*)shader type:(GLenum)type file:(NSString*)file;
- (BOOL)linkProgram:(GLuint)prog;
- (BOOL)validateProgram:(GLuint)prog;
@end
@implementation GameViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
if (!self.context)
NSLog(@"Failed to create ES context");
GLKView *view = (GLKView *)self.view;
view.context = self.context;
view.drawableDepthFormat = GLKViewDrawableDepthFormat24;
[self.btnServername setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[self setupGL];
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
self.serverName = [userDefaults objectForKey: SERVERNAME_KEY ];
self.imgui = [[ImGuiHelper alloc] initWithView:self.view ];
if (self.serverName)
{
[self.btnServername setTitle:self.serverName forState:UIControlStateNormal];
[self.imgui connectServer: self.serverName ];
}
DebugHUD_InitDefaults(&_hud);
}
- (void)dealloc
{
[self tearDownGL];
if ([EAGLContext currentContext] == self.context)
[EAGLContext setCurrentContext:nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
if ([self isViewLoaded] && ([[self view] window] == nil))
{
self.view = nil;
[self tearDownGL];
if ([EAGLContext currentContext] == self.context)
[EAGLContext setCurrentContext:nil];
self.context = nil;
}
// Dispose of any resources that can be recreated.
}
- (BOOL)prefersStatusBarHidden
{
return YES;
}
- (IBAction)onServernameTapped:(id)sender
{
UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Set Server" message:@"Enter server name or IP for uSynergy" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:@"Cancel", nil ];
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
alert.tag = SERVERNAME_ALERT_TAG; // cheezy way to tell which alert view we're responding to
[alert show];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if ((buttonIndex==0) && (alertView.tag == SERVERNAME_ALERT_TAG))
{
// This is really janky. I usually just hardcode the servername since I'm building it anyway.
// If you want to properly handle updating the server, you'll want to tear down and recreate
// the usynergy stuff in connectServer
BOOL serverNameWasSet = self.serverName.length > 0;
NSString *serverName = [[alertView textFieldAtIndex:0] text];
if ([serverName length] > 0)
{
self.serverName = serverName;
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:serverName forKey:SERVERNAME_KEY ];
[userDefaults synchronize];
[self.btnServername setTitle:self.serverName forState:UIControlStateNormal];
// If we hadn't previously connected, try now
if (!serverNameWasSet)
{
[self.imgui connectServer:self.serverName];
}
else
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Servername Updated"
message:@"Restart the app to connect the server"
delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
[alert show];
}
}
}
}
- (void)setupGL
{
[EAGLContext setCurrentContext:self.context];
[self loadShaders];
self.effect = [[GLKBaseEffect alloc] init];
self.effect.light0.enabled = GL_TRUE;
self.effect.light0.diffuseColor = GLKVector4Make(1.0f, 0.4f, 0.4f, 1.0f);
glEnable(GL_DEPTH_TEST);
glGenVertexArraysOES(1, &_vertexArray);
glBindVertexArrayOES(_vertexArray);
glGenBuffers(1, &_vertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, _vertexBuffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(gCubeVertexData), gCubeVertexData, GL_STATIC_DRAW);
glEnableVertexAttribArray(GLKVertexAttribPosition);
glVertexAttribPointer(GLKVertexAttribPosition, 3, GL_FLOAT, GL_FALSE, 24, BUFFER_OFFSET(0));
glEnableVertexAttribArray(GLKVertexAttribNormal);
glVertexAttribPointer(GLKVertexAttribNormal, 3, GL_FLOAT, GL_FALSE, 24, BUFFER_OFFSET(12));
glBindVertexArrayOES(0);
}
- (void)tearDownGL
{
[EAGLContext setCurrentContext:self.context];
glDeleteBuffers(1, &_vertexBuffer);
glDeleteVertexArraysOES(1, &_vertexArray);
self.effect = nil;
if (_program)
{
glDeleteProgram(_program);
_program = 0;
}
}
#pragma mark - GLKView and GLKViewController delegate methods
- (void)update
{
float aspect = fabs(self.view.bounds.size.width / self.view.bounds.size.height);
GLKMatrix4 projectionMatrix = GLKMatrix4MakePerspective(GLKMathDegreesToRadians(65.0f), aspect, 0.1f, 100.0f);
self.effect.transform.projectionMatrix = projectionMatrix;
GLKMatrix4 baseModelViewMatrix = GLKMatrix4MakeTranslation(0.0f, 0.0f, -4.0f);
baseModelViewMatrix = GLKMatrix4Rotate(baseModelViewMatrix, _rotation, 0.0f, 1.0f, 0.0f);
// Compute the model view matrix for the object rendered with GLKit
GLKMatrix4 modelViewMatrix = GLKMatrix4MakeTranslation(0.0f, 0.0f, -1.5f);
modelViewMatrix = GLKMatrix4Rotate(modelViewMatrix, _rotation, 1.0f, 1.0f, 1.0f);
modelViewMatrix = GLKMatrix4Multiply(baseModelViewMatrix, modelViewMatrix);
self.effect.transform.modelviewMatrix = modelViewMatrix;
// Compute the model view matrix for the object rendered with ES2
modelViewMatrix = GLKMatrix4MakeTranslation(0.0f, 0.0f, 1.5f);
modelViewMatrix = GLKMatrix4Rotate(modelViewMatrix, _rotation, 1.0f, 1.0f, 1.0f);
modelViewMatrix = GLKMatrix4Multiply(baseModelViewMatrix, modelViewMatrix);
_normalMatrix = GLKMatrix3InvertAndTranspose(GLKMatrix4GetMatrix3(modelViewMatrix), NULL);
_modelViewProjectionMatrix = GLKMatrix4Multiply(projectionMatrix, modelViewMatrix);
_rotation += self.timeSinceLastUpdate * (_hud.rotation_speed * (M_PI / 180.0));
}
- (void)glkView:(GLKView *)view drawInRect:(CGRect)rect
{
// Start the dear imgui frame
[self.imgui newFrame];
// Create some UI elements
DebugHUD_DoInterface( &_hud );
// Render
glClearColor(0.65f, 0.65f, 0.65f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindVertexArrayOES(_vertexArray);
// Render the object with GLKit
[self.effect prepareToDraw];
glDrawArrays(GL_TRIANGLES, 0, 36);
// Render the object again with ES2
glUseProgram(_program);
glUniformMatrix4fv(uniforms[UNIFORM_MODELVIEWPROJECTION_MATRIX], 1, 0, _modelViewProjectionMatrix.m);
glUniformMatrix3fv(uniforms[UNIFORM_NORMAL_MATRIX], 1, 0, _normalMatrix.m);
glUniform3f(uniforms[UNIFORM_DIFFUSE_COLOR], _hud.cubeColor1[0], _hud.cubeColor1[1], _hud.cubeColor1[2] );
glDrawArrays(GL_TRIANGLES, 0, 36);
self.effect.light0.diffuseColor = GLKVector4Make( _hud.cubeColor2[0], _hud.cubeColor2[1], _hud.cubeColor2[2], 1.0f);
// Render dear imgui as the last thing in the frame if possible
[self.imgui render];
}
#pragma mark - OpenGL ES 2 shader compilation
- (BOOL)loadShaders
{
GLuint vertShader, fragShader;
NSString *vertShaderPathname, *fragShaderPathname;
// Create shader program.
_program = glCreateProgram();
// Create and compile vertex shader.
vertShaderPathname = [[NSBundle mainBundle] pathForResource:@"Shader" ofType:@"vsh"];
if (![self compileShader:&vertShader type:GL_VERTEX_SHADER file:vertShaderPathname]) {
NSLog(@"Failed to compile vertex shader");
return NO;
}
// Create and compile fragment shader.
fragShaderPathname = [[NSBundle mainBundle] pathForResource:@"Shader" ofType:@"fsh"];
if (![self compileShader:&fragShader type:GL_FRAGMENT_SHADER file:fragShaderPathname]) {
NSLog(@"Failed to compile fragment shader");
return NO;
}
// Attach vertex shader to program.
glAttachShader(_program, vertShader);
// Attach fragment shader to program.
glAttachShader(_program, fragShader);
// Bind attribute locations.
// This needs to be done prior to linking.
glBindAttribLocation(_program, GLKVertexAttribPosition, "position");
glBindAttribLocation(_program, GLKVertexAttribNormal, "normal");
// Link program.
if (![self linkProgram:_program])
{
NSLog(@"Failed to link program: %d", _program);
if (vertShader) {
glDeleteShader(vertShader);
vertShader = 0;
}
if (fragShader) {
glDeleteShader(fragShader);
fragShader = 0;
}
if (_program) {
glDeleteProgram(_program);
_program = 0;
}
return NO;
}
// Get uniform locations.
uniforms[UNIFORM_MODELVIEWPROJECTION_MATRIX] = glGetUniformLocation(_program, "modelViewProjectionMatrix");
uniforms[UNIFORM_NORMAL_MATRIX] = glGetUniformLocation(_program, "normalMatrix");
uniforms[UNIFORM_DIFFUSE_COLOR] = glGetUniformLocation(_program, "diffuseColor");
// Release vertex and fragment shaders.
if (vertShader)
{
glDetachShader(_program, vertShader);
glDeleteShader(vertShader);
}
if (fragShader)
{
glDetachShader(_program, fragShader);
glDeleteShader(fragShader);
}
return YES;
}
- (BOOL)compileShader:(GLuint *)shader type:(GLenum)type file:(NSString *)file
{
GLint status;
const GLchar *source;
source = (GLchar *)[[NSString stringWithContentsOfFile:file encoding:NSUTF8StringEncoding error:nil] UTF8String];
if (!source)
{
NSLog(@"Failed to load vertex shader");
return NO;
}
*shader = glCreateShader(type);
glShaderSource(*shader, 1, &source, NULL);
glCompileShader(*shader);
#if defined(DEBUG)
GLint logLength;
glGetShaderiv(*shader, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0) {
GLchar *log = (GLchar *)malloc(logLength);
glGetShaderInfoLog(*shader, logLength, &logLength, log);
NSLog(@"Shader compile log:\n%s", log);
free(log);
}
#endif
glGetShaderiv(*shader, GL_COMPILE_STATUS, &status);
if (status == 0)
{
glDeleteShader(*shader);
return NO;
}
return YES;
}
- (BOOL)linkProgram:(GLuint)prog
{
GLint status;
glLinkProgram(prog);
#if defined(DEBUG)
GLint logLength;
glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0)
{
GLchar *log = (GLchar *)malloc(logLength);
glGetProgramInfoLog(prog, logLength, &logLength, log);
NSLog(@"Program link log:\n%s", log);
free(log);
}
#endif
glGetProgramiv(prog, GL_LINK_STATUS, &status);
if (status == 0)
return NO;
return YES;
}
- (BOOL)validateProgram:(GLuint)prog
{
GLint logLength, status;
glValidateProgram(prog);
glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0) {
GLchar *log = (GLchar *)malloc(logLength);
glGetProgramInfoLog(prog, logLength, &logLength, log);
NSLog(@"Program validate log:\n%s", log);
free(log);
}
glGetProgramiv(prog, GL_VALIDATE_STATUS, &status);
if (status == 0)
return NO;
return YES;
}
@end
examples/example_apple/imguiex-ios/Images.xcassets/AppIcon.appiconset/Contents.json
-77
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{
"images" : [
{
"idiom" : "iphone",
"size" : "29x29",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "29x29",
"scale" : "3x"
},
{
"idiom" : "iphone",
"size" : "40x40",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "40x40",
"scale" : "3x"
},
{
"size" : "60x60",
"idiom" : "iphone",
"filename" : "icon_imgui_60@2x~iphone.png",
"scale" : "2x"
},
{
"size" : "60x60",
"idiom" : "iphone",
"filename" : "icon_imgui_60@3x~iphone.png",
"scale" : "3x"
},
{
"idiom" : "ipad",
"size" : "29x29",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "29x29",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "40x40",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "40x40",
"scale" : "2x"
},
{
"size" : "76x76",
"idiom" : "ipad",
"filename" : "icon_imgui_76~ipad.png",
"scale" : "1x"
},
{
"size" : "76x76",
"idiom" : "ipad",
"filename" : "icon_imgui_76@2x~ipad.png",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "83.5x83.5",
"scale" : "2x"
}
],
"info" : {
"version" : 1,
"author" : "xcode"
}
}
examples/example_apple/imguiex-ios/Images.xcassets/AppIcon.appiconset/icon_imgui_60@2x~iphone.png
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examples/example_apple/imguiex-ios/Info.plist
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>org.imgui.example.$(PRODUCT_NAME:rfc1034identifier)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIMainStoryboardFile</key>
<string>Main</string>
<key>UIRequiredDeviceCapabilities</key>
<array>
<string>armv7</string>
</array>
<key>UIStatusBarHidden</key>
<true/>
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UISupportedInterfaceOrientations~ipad</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationPortraitUpsideDown</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
</dict>
</plist>
examples/example_apple/imguiex-ios/Shaders/Shader.fsh
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//
// Shader.fsh
// imguiex
varying lowp vec4 colorVarying;
void main()
{
gl_FragColor = colorVarying;
}
examples/example_apple/imguiex-ios/Shaders/Shader.vsh
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//
// Shader.vsh
// imguiex
attribute vec4 position;
attribute vec3 normal;
varying lowp vec4 colorVarying;
uniform vec3 diffuseColor;
uniform mat4 modelViewProjectionMatrix;
uniform mat3 normalMatrix;
void main()
{
vec3 eyeNormal = normalize(normalMatrix * normal);
vec3 lightPosition = vec3(0.0, 0.0, 1.0);
float nDotVP = max(0.0, dot(eyeNormal, normalize(lightPosition)));
vec3 colorLit = diffuseColor * nDotVP;
colorVarying = vec4( colorLit.x, colorLit.y, colorLit.z, 1.0 );
gl_Position = modelViewProjectionMatrix * position;
}
examples/example_apple/imguiex-ios/debug_hud.cpp
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//
// debug_hud.cpp
// imguiex
#include <stdio.h>
#include "debug_hud.h"
#include "imgui.h"
void DebugHUD_InitDefaults( DebugHUD *hud )
{
hud->show_demo_window = true;
hud->show_another_window = true;
hud->rotation_speed = 15.0f;
hud->cubeColor1[0] = 0.4f;
hud->cubeColor1[1] = 0.4f;
hud->cubeColor1[2] = 1.0f;
hud->cubeColor1[3] = 1.0f;
hud->cubeColor2[0] = 1.0f;
hud->cubeColor2[1] = 0.4f;
hud->cubeColor2[2] = 0.4f;
hud->cubeColor2[3] = 1.0f;
hud->clearColor[0] = 0.45f;
hud->clearColor[1] = 0.55f;
hud->clearColor[2] = 0.60f;
hud->clearColor[3] = 1.00f;
}
void DebugHUD_DoInterface(DebugHUD *hud)
{
// 1. Show a simple window.
// Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
{
static float f = 0.0f;
static int counter = 0;
ImGui::Text("Hello, world!"); // Display some text (you can use a format string too)
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui::ColorEdit3("clear color", hud->clearColor); // Edit 3 floats representing a color
ImGui::Checkbox("Demo Window", &hud->show_demo_window); // Edit bools storing our windows open/close state
ImGui::Checkbox("Another Window", &hud->show_another_window);
if (ImGui::Button("Button")) // Buttons return true when clicked (NB: most widgets return true when edited/activated)
counter++;
ImGui::SameLine();
ImGui::Text("counter = %d", counter);
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
}
// 2. Show another simple window. In most cases you will use an explicit Begin/End pair to name your windows.
if (hud->show_another_window)
{
ImGui::Begin("Another Window", &hud->show_another_window);
ImGui::Text("Hello from another window!");
ImGui::ColorEdit3("Cube 1 Color", hud->cubeColor1);
ImGui::ColorEdit3("Cube 2 Color", hud->cubeColor2);
ImGui::SliderFloat("Rotation Speed", &hud->rotation_speed, 0.0f, 200.0f);
if (ImGui::Button("Close Me"))
hud->show_another_window = false;
ImGui::End();
}
// 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow(). Read its code to learn more about Dear ImGui!
if (hud->show_demo_window)
{
ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
ImGui::ShowDemoWindow(&hud->show_demo_window);
}
}
examples/example_apple/imguiex-ios/debug_hud.h
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//
// debug_hud.h
// imguiex
#pragma once
typedef struct DebugHUD
{
bool show_demo_window;
bool show_another_window;
float rotation_speed;
float cubeColor1[4];
float cubeColor2[4];
float clearColor[4];
} DebugHUD;
#if __cplusplus
extern "C" {
#endif
void DebugHUD_InitDefaults(DebugHUD *hud);
void DebugHUD_DoInterface(DebugHUD *hud);
#if __cplusplus
}
#endif
examples/example_apple/imguiex-ios/imgui_ex_icon.png
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examples/example_apple/imguiex-ios/imgui_impl_ios.h
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// ImGui iOS+OpenGL+Synergy binding
// In this binding, ImTextureID is used to store an OpenGL 'GLuint' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
// Providing a standalone iOS application with Synergy integration makes this sample more verbose than others. It also hasn't been tested as much.
// Refer to other examples to get an easier understanding of how to integrate ImGui into your existing application.
// by Joel Davis (joeld42@gmail.com)
#pragma once
#include <Foundation/Foundation.h>
#include <UIKit/UIKit.h>
@interface ImGuiHelper : NSObject
- (id) initWithView: (UIView *)view;
- (void)connectServer: (NSString*)serverName;
- (void)render;
- (void)newFrame;
@end
examples/example_apple/imguiex-ios/imgui_impl_ios.mm
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examples/example_apple/imguiex-ios/main.m
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//
// main.m
// imguiex
//
#import <UIKit/UIKit.h>
#import "AppDelegate.h"
int main(int argc, char * argv[]) {
@autoreleasepool {
return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}
}
examples/example_apple/imguiex-osx/AppDelegate.h
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//
// AppDelegate.h
// imguiex-osx
//
// Created by James Chen on 4/5/16.
// Copyright © 2016 Joel Davis. All rights reserved.
//
#import <Cocoa/Cocoa.h>
@interface AppDelegate : NSObject <NSApplicationDelegate>
@end
examples/example_apple/imguiex-osx/AppDelegate.m
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//
// AppDelegate.m
// imguiex-osx
//
// Created by James Chen on 4/5/16.
// Copyright © 2016 Joel Davis. All rights reserved.
//
#import "AppDelegate.h"
@interface AppDelegate ()
@property (weak) IBOutlet NSWindow *window;
@end
@implementation AppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
// Insert code here to initialize your application
}
- (void)applicationWillTerminate:(NSNotification *)aNotification {
// Insert code here to tear down your application
}
@end
examples/example_apple/imguiex-osx/Assets.xcassets/AppIcon.appiconset/Contents.json
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{
"images" : [
{
"idiom" : "mac",
"size" : "16x16",
"scale" : "1x"
},
{
"idiom" : "mac",
"size" : "16x16",
"scale" : "2x"
},
{
"idiom" : "mac",
"size" : "32x32",
"scale" : "1x"
},
{
"idiom" : "mac",
"size" : "32x32",
"scale" : "2x"
},
{
"idiom" : "mac",
"size" : "128x128",
"scale" : "1x"
},
{
"idiom" : "mac",
"size" : "128x128",
"scale" : "2x"
},
{
"idiom" : "mac",
"size" : "256x256",
"scale" : "1x"
},
{
"idiom" : "mac",
"size" : "256x256",
"scale" : "2x"
},
{
"idiom" : "mac",
"size" : "512x512",
"scale" : "1x"
},
{
"size" : "512x512",
"idiom" : "mac",
"filename" : "icon_imgui_180x180.png",
"scale" : "2x"
},
{
"idiom" : "mac",
"size" : "512x512",
"scale" : "2x"
}
],
"info" : {
"version" : 1,
"author" : "xcode"
}
}
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examples/example_apple/imguiex-osx/Assets.xcassets/Contents.json
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{
"info" : {
"version" : 1,
"author" : "xcode"
}
}
examples/example_apple/imguiex-osx/Info.plist
-34
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIconFile</key>
<string></string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSMinimumSystemVersion</key>
<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
<key>NSHumanReadableCopyright</key>
<string>Copyright © 2016 Joel Davis. All rights reserved.</string>
<key>NSMainNibFile</key>
<string>MainMenu</string>
<key>NSPrincipalClass</key>
<string>NSApplication</string>
</dict>
</plist>
examples/example_apple/imguiex-osx/main.m
-13
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//
// main.m
// imguiex-osx
//
// Created by James Chen on 4/5/16.
// Copyright © 2016 Joel Davis. All rights reserved.
//
#import <Cocoa/Cocoa.h>
int main(int argc, const char * argv[]) {
return NSApplicationMain(argc, argv);
}
examples/example_apple/imguiex.xcodeproj/project.pbxproj
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