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iOS example working based on modified OpenGL3 example + Synergy

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This commit is contained in:
Joel Davis
2015-06-15 09:23:57 -07:00
committed by ocornut
parent f4fc008a2a
commit eee6dab226
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.DS_Store
imguiex.xcodeproj/project.xcworkspace/
imguiex.xcodeproj/xcuserdata/

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# iOS example
----
## Introduction
This example is the default XCode "OpenGL" example code, modified to support IMGUI and [Synergy](http://synergy-project.org/).
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 "Touch Padding", and this is enabled when Synergy is not active.
## How to Use
----
0. In Synergy, go to Preferences, and uncheck "Use SSL encryption"
0. Run the example app.
0. Tap the "servername" button in the corner
0. Enter the name or the IP of your synergy host
0. If you had previously connected to a server, you may need to kill and re-start the app.
----
## 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
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.

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13
examples/ios_example/imguiex/AppDelegate.h Normal file
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//
// AppDelegate.h
// imguiex
#import <UIKit/UIKit.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@end

41
examples/ios_example/imguiex/AppDelegate.m Normal file
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//
// 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

32
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<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>

44
examples/ios_example/imguiex/Base.lproj/Main.storyboard Normal file
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<?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>

13
examples/ios_example/imguiex/GameViewController.h Normal file
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//
// 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

481
examples/ios_example/imguiex/GameViewController.m Normal file
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//
// 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,
NUM_UNIFORMS
};
GLint uniforms[NUM_UNIFORMS];
// Attribute index.
enum
{
ATTRIB_VERTEX,
ATTRIB_NORMAL,
NUM_ATTRIBUTES
};
GLfloat gCubeVertexData[216] =
{
// Data layout for each line below is:
// positionX, positionY, positionZ, normalX, normalY, normalZ,
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
{
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.imgui newFrame];
// Now do our ImGUI UI
DebugHUD_DoInterface( &_hud );
self.effect.light0.diffuseColor = GLKVector4Make( _hud.cubeColor2[0], _hud.cubeColor2[1], _hud.cubeColor2[2], 1.0f);
// Now render Imgui
[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

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examples/ios_example/imguiex/Images.xcassets/AppIcon.appiconset/Contents.json Normal file
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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"
}
],
"info" : {
"version" : 1,
"author" : "xcode"
}
}

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49
examples/ios_example/imguiex/Info.plist Normal file
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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>

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//
// Shader.fsh
// imguiex
varying lowp vec4 colorVarying;
void main()
{
gl_FragColor = colorVarying;
}

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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;
}

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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_test_window = 1;
hud->show_example_window = 1;
hud->rotation_speed = 15.0;
hud->cubeColor1[0] = 0.4;
hud->cubeColor1[1] = 0.4;
hud->cubeColor1[2] = 1.0;
hud->cubeColor1[3] = 1.0;
hud->cubeColor2[0] = 1.0;
hud->cubeColor2[1] = 0.4;
hud->cubeColor2[2] = 0.4;
hud->cubeColor2[3] = 1.0;
}
void DebugHUD_DoInterface( DebugHUD *hud )
{
if (hud->show_test_window)
{
ImGui::SetNextWindowPos( ImVec2( 400, 20 ), ImGuiSetCond_FirstUseEver );
bool show_test_window = hud->show_test_window;
ImGui::ShowTestWindow( &show_test_window );
hud->show_test_window = show_test_window;
}
if (hud->show_example_window)
{
bool show_window = hud->show_example_window;
ImGui::SetNextWindowPos( ImVec2( 20, 20 ), ImGuiSetCond_FirstUseEver );
ImGui::SetNextWindowSize( ImVec2( 350, 200 ), ImGuiSetCond_FirstUseEver );
ImGui::Begin("Another Window", &show_window);
hud->show_example_window = show_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);
ImGui::End();
}
}

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//
// debug_hud.h
// imguiex
#ifndef __imguiex__debug_hud__
#define __imguiex__debug_hud__
typedef struct DebugHUD
{
int show_test_window;
int show_example_window;
float rotation_speed;
float cubeColor1[4];
float cubeColor2[4];
} DebugHUD;
#if __cplusplus
extern "C" {
#endif
void DebugHUD_InitDefaults( DebugHUD *hud );
void DebugHUD_DoInterface( DebugHUD *hud );
#if __cplusplus
}
#endif
#endif /* defined(__imguiex__debug_hud__) */

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//
// imgui_impl_ios.h
// imguiex
//
// Joel Davis (joeld42@gmail.com)
//
#ifndef __imguiex__imgui_impl_ios__
#define __imguiex__imgui_impl_ios__
#include <Foundation/Foundation.h>
#include <UIKit/UIKit.h>
@interface ImGuiHelper : NSObject
- (id) initWithView: (UIView *)view;
- (void)connectServer: (NSString*)serverName;
- (void)render;
- (void)newFrame;
@end
#endif /* defined(__imguiex__imgui_impl_ios__) */

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//
// imgui_impl_ios.cpp
// imguiex
#import <OpenGLES/ES3/gl.h>
#import <OpenGLES/ES3/glext.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include "imgui_impl_ios.h"
#include "imgui.h"
#include "uSynergy.h"
// From Carbon HIToolbox/Events.h
enum {
kVK_ANSI_A = 0x00,
kVK_ANSI_S = 0x01,
kVK_ANSI_D = 0x02,
kVK_ANSI_F = 0x03,
kVK_ANSI_H = 0x04,
kVK_ANSI_G = 0x05,
kVK_ANSI_Z = 0x06,
kVK_ANSI_X = 0x07,
kVK_ANSI_C = 0x08,
kVK_ANSI_V = 0x09,
kVK_ANSI_B = 0x0B,
kVK_ANSI_Q = 0x0C,
kVK_ANSI_W = 0x0D,
kVK_ANSI_E = 0x0E,
kVK_ANSI_R = 0x0F,
kVK_ANSI_Y = 0x10,
kVK_ANSI_T = 0x11,
kVK_ANSI_1 = 0x12,
kVK_ANSI_2 = 0x13,
kVK_ANSI_3 = 0x14,
kVK_ANSI_4 = 0x15,
kVK_ANSI_6 = 0x16,
kVK_ANSI_5 = 0x17,
kVK_ANSI_Equal = 0x18,
kVK_ANSI_9 = 0x19,
kVK_ANSI_7 = 0x1A,
kVK_ANSI_Minus = 0x1B,
kVK_ANSI_8 = 0x1C,
kVK_ANSI_0 = 0x1D,
kVK_ANSI_RightBracket = 0x1E,
kVK_ANSI_O = 0x1F,
kVK_ANSI_U = 0x20,
kVK_ANSI_LeftBracket = 0x21,
kVK_ANSI_I = 0x22,
kVK_ANSI_P = 0x23,
kVK_ANSI_L = 0x25,
kVK_ANSI_J = 0x26,
kVK_ANSI_Quote = 0x27,
kVK_ANSI_K = 0x28,
kVK_ANSI_Semicolon = 0x29,
kVK_ANSI_Backslash = 0x2A,
kVK_ANSI_Comma = 0x2B,
kVK_ANSI_Slash = 0x2C,
kVK_ANSI_N = 0x2D,
kVK_ANSI_M = 0x2E,
kVK_ANSI_Period = 0x2F,
kVK_ANSI_Grave = 0x32,
kVK_ANSI_KeypadDecimal = 0x41,
kVK_ANSI_KeypadMultiply = 0x43,
kVK_ANSI_KeypadPlus = 0x45,
kVK_ANSI_KeypadClear = 0x47,
kVK_ANSI_KeypadDivide = 0x4B,
kVK_ANSI_KeypadEnter = 0x4C,
kVK_ANSI_KeypadMinus = 0x4E,
kVK_ANSI_KeypadEquals = 0x51,
kVK_ANSI_Keypad0 = 0x52,
kVK_ANSI_Keypad1 = 0x53,
kVK_ANSI_Keypad2 = 0x54,
kVK_ANSI_Keypad3 = 0x55,
kVK_ANSI_Keypad4 = 0x56,
kVK_ANSI_Keypad5 = 0x57,
kVK_ANSI_Keypad6 = 0x58,
kVK_ANSI_Keypad7 = 0x59,
kVK_ANSI_Keypad8 = 0x5B,
kVK_ANSI_Keypad9 = 0x5C
};
/* keycodes for keys that are independent of keyboard layout*/
enum {
kVK_Return = 0x24,
kVK_Tab = 0x30,
kVK_Space = 0x31,
kVK_Delete = 0x33,
kVK_Escape = 0x35,
kVK_Command = 0x37,
kVK_Shift = 0x38,
kVK_CapsLock = 0x39,
kVK_Option = 0x3A,
kVK_Control = 0x3B,
kVK_RightShift = 0x3C,
kVK_RightOption = 0x3D,
kVK_RightControl = 0x3E,
kVK_Function = 0x3F,
kVK_F17 = 0x40,
kVK_VolumeUp = 0x48,
kVK_VolumeDown = 0x49,
kVK_Mute = 0x4A,
kVK_F18 = 0x4F,
kVK_F19 = 0x50,
kVK_F20 = 0x5A,
kVK_F5 = 0x60,
kVK_F6 = 0x61,
kVK_F7 = 0x62,
kVK_F3 = 0x63,
kVK_F8 = 0x64,
kVK_F9 = 0x65,
kVK_F11 = 0x67,
kVK_F13 = 0x69,
kVK_F16 = 0x6A,
kVK_F14 = 0x6B,
kVK_F10 = 0x6D,
kVK_F12 = 0x6F,
kVK_F15 = 0x71,
kVK_Help = 0x72,
kVK_Home = 0x73,
kVK_PageUp = 0x74,
kVK_ForwardDelete = 0x75,
kVK_F4 = 0x76,
kVK_End = 0x77,
kVK_F2 = 0x78,
kVK_PageDown = 0x79,
kVK_F1 = 0x7A,
kVK_LeftArrow = 0x7B,
kVK_RightArrow = 0x7C,
kVK_DownArrow = 0x7D,
kVK_UpArrow = 0x7E
};
static char g_keycodeCharUnshifted[256] = {};
static char g_keycodeCharShifted[256] = {};
//static double g_Time = 0.0f;
static bool g_MousePressed[3] = { false, false, false };
static float g_mouseWheelX = 0.0f;
static float g_mouseWheelY = 0.0f;
static GLuint g_FontTexture = 0;
static int g_ShaderHandle = 0, g_VertHandle = 0, g_FragHandle = 0;
static int g_AttribLocationTex = 0, g_AttribLocationProjMtx = 0;
static int g_AttribLocationPosition = 0, g_AttribLocationUV = 0, g_AttribLocationColor = 0;
static size_t g_VboSize = 0;
static unsigned int g_VboHandle = 0, g_VaoHandle = 0;
static float g_displayScale;
static int usynergy_sockfd;
static bool g_synergyPtrActive = false;
static uint16_t g_mousePosX = 0;
static uint16_t g_mousePosY = 0;
static void ImGui_ImplIOS_RenderDrawLists (ImDrawList** const cmd_lists, int cmd_lists_count);
bool ImGui_ImplIOS_CreateDeviceObjects();
static NSString *g_serverName;
uSynergyBool ImGui_ConnectFunc(uSynergyCookie cookie)
{
// NOTE: You need to turn off "Use SSL Encryption" in Synergy preferences, since
// uSynergy does not support SSL.
NSLog( @"Connect Func!");
struct addrinfo hints, *res;
// first, load up address structs with getaddrinfo():
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC; // use IPv4 or IPv6, whichever
hints.ai_socktype = SOCK_STREAM;
// get server address
getaddrinfo([g_serverName UTF8String], "24800", &hints, &res);
if (!res)
{
NSLog( @"Could not find server: %@", g_serverName );
return USYNERGY_FALSE;
}
// make a socket:
usynergy_sockfd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
// connect it to the address and port we passed in to getaddrinfo():
int ret = connect(usynergy_sockfd, res->ai_addr, res->ai_addrlen);
if (!ret) {
NSLog( @"Connect suceeded...");
} else {
NSLog( @"Connect failed, %d", ret );
}
return USYNERGY_TRUE;
}
uSynergyBool ImGui_SendFunc(uSynergyCookie cookie, const uint8_t *buffer, int length)
{
// NSLog( @"Send Func" );
send( usynergy_sockfd, buffer, length, 0 );
return USYNERGY_TRUE;
}
uSynergyBool ImGui_RecvFunc(uSynergyCookie cookie, uint8_t *buffer, int maxLength, int* outLength)
{
*outLength = (int)recv( usynergy_sockfd, buffer, maxLength, 0 );
return USYNERGY_TRUE;
}
void ImGui_SleepFunc(uSynergyCookie cookie, int timeMs)
{
usleep( timeMs * 1000 );
}
uint32_t ImGui_GetTimeFunc()
{
struct timeval tv;
gettimeofday(&tv, NULL);
return (int32_t)((tv.tv_sec) * 1000 + (tv.tv_usec) / 1000);
}
void ImGui_TraceFunc(uSynergyCookie cookie, const char *text)
{
puts(text);
}
void ImGui_ScreenActiveCallback(uSynergyCookie cookie, uSynergyBool active)
{
g_synergyPtrActive = active;
// printf( "Synergy: screen activate %s\n", active?"YES":"NO" );
}
void ImGui_MouseCallback(uSynergyCookie cookie, uint16_t x, uint16_t y, int16_t wheelX, int16_t wheelY,
uSynergyBool buttonLeft, uSynergyBool buttonRight, uSynergyBool buttonMiddle)
{
// printf("Synergy: mouse callback %d %d -- wheel %d %d\n", x, y, wheelX, wheelY );
uSynergyContext *ctx = (uSynergyContext*)cookie;
g_mousePosX = x;
g_mousePosY = y;
g_mouseWheelX = wheelX;
g_mouseWheelY = wheelY;
g_MousePressed[0] = buttonLeft;
g_MousePressed[1] = buttonMiddle;
g_MousePressed[2] = buttonRight;
ctx->m_mouseWheelX = 0;
ctx->m_mouseWheelY = 0;
}
void ImGui_KeyboardCallback(uSynergyCookie cookie, uint16_t key,
uint16_t modifiers, uSynergyBool down, uSynergyBool repeat)
{
int scanCode = key-1;
// printf("Synergy: keyboard callback: 0x%02X (%s)", scanCode, down?"true":"false");
ImGuiIO& io = ImGui::GetIO();
io.KeysDown[key] = down;
io.KeyShift = modifiers & USYNERGY_MODIFIER_SHIFT;
io.KeyCtrl = modifiers & USYNERGY_MODIFIER_CTRL;
io.KeyAlt = modifiers & USYNERGY_MODIFIER_ALT;
// Add this as keyboard input
if ((down) && (key) && (scanCode<256) && !(modifiers & USYNERGY_MODIFIER_CTRL)) {
int charForKeycode = 0;
if (modifiers & USYNERGY_MODIFIER_SHIFT ) {
charForKeycode = g_keycodeCharShifted[ scanCode ];
} else {
charForKeycode = g_keycodeCharUnshifted[ scanCode ];
}
// If this key maps to a character input, apply it
io.AddInputCharacter((unsigned short)charForKeycode);
}
}
void ImGui_JoystickCallback(uSynergyCookie cookie, uint8_t joyNum, uint16_t buttons, int8_t leftStickX, int8_t leftStickY, int8_t rightStickX, int8_t rightStickY)
{
printf("Synergy: joystick callback TODO\n");
}
void ImGui_ClipboardCallback(uSynergyCookie cookie, enum uSynergyClipboardFormat format, const uint8_t *data, uint32_t size)
{
printf("Synergy: clipboard callback TODO\n" );
}
@interface ImGuiHelper ()
{
BOOL _mouseDown;
BOOL _mouseTapped;
CGPoint _touchPos;
uSynergyContext _synergyCtx;
dispatch_queue_t _synergyQueue;
}
@property (nonatomic, weak) UIView *view;
@property (nonatomic, strong) NSString *serverName;
@end
@implementation ImGuiHelper
- (id) initWithView: (UIView *)view
{
self = [super init];
if (self)
{
self.view = view;
[self setupImGuiHooks];
}
return self;
}
- (void)setupKeymaps
{
// The keyboard mapping is a big headache. I tried for a while to find a better way to do this,
// but this was the best I could come up with. There are some device independent API's available
// to convert scan codes to unicode characters, but these are only available on mac and not
// on iOS as far as I can tell (it's part of Carbon). I didn't see any better way to do
// this or any way to get the character codes out of usynergy.
g_keycodeCharUnshifted[ kVK_ANSI_A ]='a';
g_keycodeCharUnshifted[ kVK_ANSI_S ]='s';
g_keycodeCharUnshifted[ kVK_ANSI_D ]='d';
g_keycodeCharUnshifted[ kVK_ANSI_F ]='f';
g_keycodeCharUnshifted[ kVK_ANSI_H ]='h';
g_keycodeCharUnshifted[ kVK_ANSI_G ]='g';
g_keycodeCharUnshifted[ kVK_ANSI_Z ]='z';
g_keycodeCharUnshifted[ kVK_ANSI_X ]='x';
g_keycodeCharUnshifted[ kVK_ANSI_C ]='c';
g_keycodeCharUnshifted[ kVK_ANSI_V ]='v';
g_keycodeCharUnshifted[ kVK_ANSI_B ]='b';
g_keycodeCharUnshifted[ kVK_ANSI_Q ]='q';
g_keycodeCharUnshifted[ kVK_ANSI_W ]='w';
g_keycodeCharUnshifted[ kVK_ANSI_E ]='e';
g_keycodeCharUnshifted[ kVK_ANSI_R ]='r';
g_keycodeCharUnshifted[ kVK_ANSI_Y ]='y';
g_keycodeCharUnshifted[ kVK_ANSI_T ]='t';
g_keycodeCharUnshifted[ kVK_ANSI_1 ]='1';
g_keycodeCharUnshifted[ kVK_ANSI_2 ]='2';
g_keycodeCharUnshifted[ kVK_ANSI_3 ]='3';
g_keycodeCharUnshifted[ kVK_ANSI_4 ]='4';
g_keycodeCharUnshifted[ kVK_ANSI_6 ]='6';
g_keycodeCharUnshifted[ kVK_ANSI_5 ]='5';
g_keycodeCharUnshifted[ kVK_ANSI_Equal ]='=';
g_keycodeCharUnshifted[ kVK_ANSI_9 ]='9';
g_keycodeCharUnshifted[ kVK_ANSI_7 ]='7';
g_keycodeCharUnshifted[ kVK_ANSI_Minus ]='-';
g_keycodeCharUnshifted[ kVK_ANSI_8 ]='8';
g_keycodeCharUnshifted[ kVK_ANSI_0 ]='0';
g_keycodeCharUnshifted[ kVK_ANSI_RightBracket ]=']';
g_keycodeCharUnshifted[ kVK_ANSI_O ]='o';
g_keycodeCharUnshifted[ kVK_ANSI_U ]='u';
g_keycodeCharUnshifted[ kVK_ANSI_LeftBracket ]='[';
g_keycodeCharUnshifted[ kVK_ANSI_I ]='i';
g_keycodeCharUnshifted[ kVK_ANSI_P ]='p';
g_keycodeCharUnshifted[ kVK_ANSI_L ]='l';
g_keycodeCharUnshifted[ kVK_ANSI_J ]='j';
g_keycodeCharUnshifted[ kVK_ANSI_Quote ]='\'';
g_keycodeCharUnshifted[ kVK_ANSI_K ]='k';
g_keycodeCharUnshifted[ kVK_ANSI_Semicolon ]=';';
g_keycodeCharUnshifted[ kVK_ANSI_Backslash ]='\\';
g_keycodeCharUnshifted[ kVK_ANSI_Comma ]=',';
g_keycodeCharUnshifted[ kVK_ANSI_Slash ]='/';
g_keycodeCharUnshifted[ kVK_ANSI_N ]='n';
g_keycodeCharUnshifted[ kVK_ANSI_M ]='m';
g_keycodeCharUnshifted[ kVK_ANSI_Period ]='.';
g_keycodeCharUnshifted[ kVK_ANSI_Grave ]='`';
g_keycodeCharUnshifted[ kVK_ANSI_KeypadDecimal ]='.';
g_keycodeCharUnshifted[ kVK_ANSI_KeypadMultiply ]='*';
g_keycodeCharUnshifted[ kVK_ANSI_KeypadPlus ]='+';
g_keycodeCharUnshifted[ kVK_ANSI_KeypadDivide ]='/';
g_keycodeCharUnshifted[ kVK_ANSI_KeypadEnter ]='\n';
g_keycodeCharUnshifted[ kVK_ANSI_KeypadMinus ]='-';
g_keycodeCharUnshifted[ kVK_ANSI_KeypadEquals ]='=';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad0 ]='0';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad1 ]='1';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad2 ]='2';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad3 ]='3';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad4 ]='4';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad5 ]='5';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad6 ]='6';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad7 ]='7';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad8 ]='8';
g_keycodeCharUnshifted[ kVK_ANSI_Keypad9 ]='9';
g_keycodeCharUnshifted[ kVK_Space ]=' ';
g_keycodeCharShifted[ kVK_ANSI_A ]='A';
g_keycodeCharShifted[ kVK_ANSI_S ]='S';
g_keycodeCharShifted[ kVK_ANSI_D ]='D';
g_keycodeCharShifted[ kVK_ANSI_F ]='F';
g_keycodeCharShifted[ kVK_ANSI_H ]='H';
g_keycodeCharShifted[ kVK_ANSI_G ]='G';
g_keycodeCharShifted[ kVK_ANSI_Z ]='Z';
g_keycodeCharShifted[ kVK_ANSI_X ]='X';
g_keycodeCharShifted[ kVK_ANSI_C ]='C';
g_keycodeCharShifted[ kVK_ANSI_V ]='V';
g_keycodeCharShifted[ kVK_ANSI_B ]='B';
g_keycodeCharShifted[ kVK_ANSI_Q ]='Q';
g_keycodeCharShifted[ kVK_ANSI_W ]='W';
g_keycodeCharShifted[ kVK_ANSI_E ]='E';
g_keycodeCharShifted[ kVK_ANSI_R ]='R';
g_keycodeCharShifted[ kVK_ANSI_Y ]='Y';
g_keycodeCharShifted[ kVK_ANSI_T ]='T';
g_keycodeCharShifted[ kVK_ANSI_1 ]='!';
g_keycodeCharShifted[ kVK_ANSI_2 ]='@';
g_keycodeCharShifted[ kVK_ANSI_3 ]='#';
g_keycodeCharShifted[ kVK_ANSI_4 ]='$';
g_keycodeCharShifted[ kVK_ANSI_6 ]='^';
g_keycodeCharShifted[ kVK_ANSI_5 ]='%';
g_keycodeCharShifted[ kVK_ANSI_Equal ]='+';
g_keycodeCharShifted[ kVK_ANSI_9 ]='(';
g_keycodeCharShifted[ kVK_ANSI_7 ]='&';
g_keycodeCharShifted[ kVK_ANSI_Minus ]='_';
g_keycodeCharShifted[ kVK_ANSI_8 ]='*';
g_keycodeCharShifted[ kVK_ANSI_0 ]=')';
g_keycodeCharShifted[ kVK_ANSI_RightBracket ]='}';
g_keycodeCharShifted[ kVK_ANSI_O ]='O';
g_keycodeCharShifted[ kVK_ANSI_U ]='U';
g_keycodeCharShifted[ kVK_ANSI_LeftBracket ]='{';
g_keycodeCharShifted[ kVK_ANSI_I ]='I';
g_keycodeCharShifted[ kVK_ANSI_P ]='P';
g_keycodeCharShifted[ kVK_ANSI_L ]='L';
g_keycodeCharShifted[ kVK_ANSI_J ]='J';
g_keycodeCharShifted[ kVK_ANSI_Quote ]='\"';
g_keycodeCharShifted[ kVK_ANSI_K ]='K';
g_keycodeCharShifted[ kVK_ANSI_Semicolon ]=':';
g_keycodeCharShifted[ kVK_ANSI_Backslash ]='|';
g_keycodeCharShifted[ kVK_ANSI_Comma ]='<';
g_keycodeCharShifted[ kVK_ANSI_Slash ]='?';
g_keycodeCharShifted[ kVK_ANSI_N ]='N';
g_keycodeCharShifted[ kVK_ANSI_M ]='M';
g_keycodeCharShifted[ kVK_ANSI_Period ]='>';
g_keycodeCharShifted[ kVK_ANSI_Grave ]='~';
g_keycodeCharShifted[ kVK_ANSI_KeypadDecimal ]='.';
g_keycodeCharShifted[ kVK_ANSI_KeypadMultiply ]='*';
g_keycodeCharShifted[ kVK_ANSI_KeypadPlus ]='+';
g_keycodeCharShifted[ kVK_ANSI_KeypadDivide ]='/';
g_keycodeCharShifted[ kVK_ANSI_KeypadEnter ]='\n';
g_keycodeCharShifted[ kVK_ANSI_KeypadMinus ]='-';
g_keycodeCharShifted[ kVK_ANSI_KeypadEquals ]='=';
g_keycodeCharShifted[ kVK_ANSI_Keypad0 ]='0';
g_keycodeCharShifted[ kVK_ANSI_Keypad1 ]='1';
g_keycodeCharShifted[ kVK_ANSI_Keypad2 ]='2';
g_keycodeCharShifted[ kVK_ANSI_Keypad3 ]='3';
g_keycodeCharShifted[ kVK_ANSI_Keypad4 ]='4';
g_keycodeCharShifted[ kVK_ANSI_Keypad5 ]='5';
g_keycodeCharShifted[ kVK_ANSI_Keypad6 ]='6';
g_keycodeCharShifted[ kVK_ANSI_Keypad7 ]='7';
g_keycodeCharShifted[ kVK_ANSI_Keypad8 ]='8';
g_keycodeCharShifted[ kVK_ANSI_Keypad9 ]='9';
g_keycodeCharShifted[ kVK_Space ]=' ';
}
- (void)setupImGuiHooks
{
ImGuiIO &io = ImGui::GetIO();
[self setupKeymaps];
// Account for retina display for glScissor
g_displayScale = [[UIScreen mainScreen] scale];
ImGuiStyle &style = ImGui::GetStyle();
style.TouchExtraPadding = ImVec2( 4.0, 4.0 );
io.RenderDrawListsFn = ImGui_ImplIOS_RenderDrawLists;
UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(viewDidPan:) ];
[self.view addGestureRecognizer:panRecognizer];
UITapGestureRecognizer *tapRecoginzer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector( viewDidTap:)];
[self.view addGestureRecognizer:tapRecoginzer];
// Fill out the Synergy key map
// (for some reason synergy scan codes are off by 1)
io.KeyMap[ImGuiKey_Tab] = kVK_Tab+1;
io.KeyMap[ImGuiKey_LeftArrow] = kVK_LeftArrow+1;
io.KeyMap[ImGuiKey_RightArrow] = kVK_RightArrow+1;
io.KeyMap[ImGuiKey_UpArrow] = kVK_UpArrow+1;
io.KeyMap[ImGuiKey_DownArrow] = kVK_DownArrow+1;
io.KeyMap[ImGuiKey_Home] = kVK_Home+1;
io.KeyMap[ImGuiKey_End] = kVK_End+1;
io.KeyMap[ImGuiKey_Delete] = kVK_ForwardDelete+1;
io.KeyMap[ImGuiKey_Backspace] = kVK_Delete+1;
io.KeyMap[ImGuiKey_Enter] = kVK_Return+1;
io.KeyMap[ImGuiKey_Escape] = kVK_Escape+1;
io.KeyMap[ImGuiKey_A] = kVK_ANSI_A+1;
io.KeyMap[ImGuiKey_C] = kVK_ANSI_C+1;
io.KeyMap[ImGuiKey_V] = kVK_ANSI_V+1;
io.KeyMap[ImGuiKey_X] = kVK_ANSI_X+1;
io.KeyMap[ImGuiKey_Y] = kVK_ANSI_Y+1;
io.KeyMap[ImGuiKey_Z] = kVK_ANSI_Z+1;
}
- (void)connectServer: (NSString*)serverName
{
self.serverName = serverName;
g_serverName = serverName;
// Init synergy
NSString *bundleName = [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString*)kCFBundleNameKey];
uSynergyInit( &_synergyCtx );
_synergyCtx.m_clientName = strdup( [bundleName UTF8String] );
_synergyCtx.m_clientWidth = self.view.bounds.size.width;
_synergyCtx.m_clientHeight = self.view.bounds.size.height;
_synergyCtx.m_connectFunc = ImGui_ConnectFunc;
_synergyCtx.m_sendFunc = ImGui_SendFunc;
_synergyCtx.m_receiveFunc = ImGui_RecvFunc;
_synergyCtx.m_sleepFunc = ImGui_SleepFunc;
_synergyCtx.m_traceFunc = ImGui_TraceFunc;
_synergyCtx.m_getTimeFunc = ImGui_GetTimeFunc;
_synergyCtx.m_traceFunc = ImGui_TraceFunc;
_synergyCtx.m_screenActiveCallback = ImGui_ScreenActiveCallback;
_synergyCtx.m_mouseCallback = ImGui_MouseCallback;
_synergyCtx.m_keyboardCallback = ImGui_KeyboardCallback;
_synergyCtx.m_cookie = (uSynergyCookie)&_synergyCtx;
// Create a background thread for synergy
_synergyQueue = dispatch_queue_create( "imgui-usynergy", NULL );
dispatch_async( _synergyQueue, ^{
while (1) {
uSynergyUpdate( &_synergyCtx );
}
});
}
- (void)viewDidPan: (UIPanGestureRecognizer *)recognizer
{
if ((recognizer.state == UIGestureRecognizerStateBegan) ||
(recognizer.state == UIGestureRecognizerStateChanged))
{
_mouseDown = YES;
_touchPos = [recognizer locationInView:self.view];
}
else
{
_mouseDown = NO;
_touchPos = CGPointMake( -1, -1 );
}
}
- (void)viewDidTap: (UITapGestureRecognizer*)recognizer
{
_touchPos = [recognizer locationInView:self.view];
_mouseTapped = YES;
}
- (void)render
{
ImGui::Render();
}
- (void)newFrame
{
ImGuiIO& io = ImGui::GetIO();
ImGuiStyle &style = ImGui::GetStyle();
if (!g_FontTexture)
{
ImGui_ImplIOS_CreateDeviceObjects();
}
io.DisplaySize = ImVec2( _view.bounds.size.width, _view.bounds.size.height );
io.MouseDrawCursor = g_synergyPtrActive;
if (g_synergyPtrActive)
{
style.TouchExtraPadding = ImVec2( 0.0, 0.0 );
io.MousePos = ImVec2( g_mousePosX, g_mousePosY );
for (int i=0; i < 3; i++)
{
io.MouseDown[i] = g_MousePressed[i];
}
// This is an arbitrary scaling factor that works for me. Not sure what units these
// mousewheel values from synergy are supposed to be in
io.MouseWheel = g_mouseWheelY / 500.0;
}
else
{
// Synergy not active, use touch events
style.TouchExtraPadding = ImVec2( 4.0, 4.0 );
io.MousePos = ImVec2(_touchPos.x, _touchPos.y );
if ((_mouseDown) || (_mouseTapped))
{
io.MouseDown[0] = true;
_mouseTapped = NO;
}
else
{
io.MouseDown[0] = false;
}
}
ImGui::NewFrame();
}
@end
// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
// If text or lines are blurry when integrating ImGui in your engine:
// - in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
// NOTE: this is copied pretty much entirely from the opengl3_example, with only minor changes for ES
static void ImGui_ImplIOS_RenderDrawLists (ImDrawList** const cmd_lists, int cmd_lists_count)
{
if (cmd_lists_count == 0)
{
return;
}
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled
GLint last_program, last_texture;
glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
// Setup orthographic projection matrix
const float width = ImGui::GetIO().DisplaySize.x;
const float height = ImGui::GetIO().DisplaySize.y;
const float ortho_projection[4][4] =
{
{ 2.0f/width, 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f/-height, 0.0f, 0.0f },
{ 0.0f, 0.0f, -1.0f, 0.0f },
{ -1.0f, 1.0f, 0.0f, 1.0f },
};
glUseProgram(g_ShaderHandle);
glUniform1i(g_AttribLocationTex, 0);
glUniformMatrix4fv(g_AttribLocationProjMtx, 1, GL_FALSE, &ortho_projection[0][0]);
// Grow our buffer according to what we need
size_t total_vtx_count = 0;
for (int n = 0; n < cmd_lists_count; n++)
total_vtx_count += cmd_lists[n]->vtx_buffer.size();
glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
size_t needed_vtx_size = total_vtx_count * sizeof(ImDrawVert);
if (g_VboSize < needed_vtx_size)
{
g_VboSize = needed_vtx_size + 5000 * sizeof(ImDrawVert); // Grow buffer
glBufferData(GL_ARRAY_BUFFER, g_VboSize, NULL, GL_STREAM_DRAW);
}
// Copy and convert all vertices into a single contiguous buffer
unsigned char* buffer_data = (unsigned char*)glMapBufferRange(GL_ARRAY_BUFFER, 0, g_VboSize, GL_MAP_WRITE_BIT);
if (!buffer_data)
return;
for (int n = 0; n < cmd_lists_count; n++)
{
const ImDrawList* cmd_list = cmd_lists[n];
memcpy(buffer_data, &cmd_list->vtx_buffer[0], cmd_list->vtx_buffer.size() * sizeof(ImDrawVert));
buffer_data += cmd_list->vtx_buffer.size() * sizeof(ImDrawVert);
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(g_VaoHandle);
int cmd_offset = 0;
for (int n = 0; n < cmd_lists_count; n++)
{
const ImDrawList* cmd_list = cmd_lists[n];
int vtx_offset = cmd_offset;
const ImDrawCmd* pcmd_end = cmd_list->commands.end();
for (const ImDrawCmd* pcmd = cmd_list->commands.begin(); pcmd != pcmd_end; pcmd++)
{
if (pcmd->user_callback)
{
pcmd->user_callback(cmd_list, pcmd);
}
else
{
glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->texture_id);
glScissor((int)(pcmd->clip_rect.x * g_displayScale),
(int)((height - pcmd->clip_rect.w) * g_displayScale),
(int)((pcmd->clip_rect.z - pcmd->clip_rect.x) * g_displayScale),
(int)((pcmd->clip_rect.w - pcmd->clip_rect.y) * g_displayScale));
glDrawArrays(GL_TRIANGLES, vtx_offset, pcmd->vtx_count);
}
vtx_offset += pcmd->vtx_count;
}
cmd_offset = vtx_offset;
}
// Restore modified state
glBindVertexArray(0);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glUseProgram(last_program);
glDisable(GL_SCISSOR_TEST);
glBindTexture(GL_TEXTURE_2D, last_texture);
}
void ImGui_ImplIOS_CreateFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bits for OpenGL3 demo because it is more likely to be compatible with user's existing shader.
glGenTextures(1, &g_FontTexture);
glBindTexture(GL_TEXTURE_2D, g_FontTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
// Store our identifier
io.Fonts->TexID = (void *)(intptr_t)g_FontTexture;
// Cleanup (don't clear the input data if you want to append new fonts later)
io.Fonts->ClearInputData();
io.Fonts->ClearTexData();
}
bool ImGui_ImplIOS_CreateDeviceObjects()
{
const GLchar *vertex_shader =
"uniform mat4 ProjMtx;\n"
"attribute highp vec2 Position;\n"
"attribute highp vec2 UV;\n"
"attribute highp vec4 Color;\n"
"varying vec2 Frag_UV;\n"
"varying vec4 Frag_Color;\n"
"void main()\n"
"{\n"
" Frag_UV = UV;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
"}\n";
const GLchar* fragment_shader =
"uniform sampler2D Texture;\n"
"varying highp vec2 Frag_UV;\n"
"varying highp vec4 Frag_Color;\n"
"void main()\n"
"{\n"
" gl_FragColor = Frag_Color * texture2D( Texture, Frag_UV.st);\n"
"}\n";
g_ShaderHandle = glCreateProgram();
g_VertHandle = glCreateShader(GL_VERTEX_SHADER);
g_FragHandle = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(g_VertHandle, 1, &vertex_shader, 0);
glShaderSource(g_FragHandle, 1, &fragment_shader, 0);
glCompileShader(g_VertHandle);
#if defined(DEBUG)
GLint logLength;
glGetShaderiv( g_VertHandle, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0) {
GLchar *log = (GLchar *)malloc(logLength);
glGetShaderInfoLog(g_VertHandle, logLength, &logLength, log);
NSLog(@"VERTEX Shader compile log:\n%s", log);
free(log);
}
#endif
glCompileShader(g_FragHandle);
#if defined(DEBUG)
glGetShaderiv( g_FragHandle, GL_INFO_LOG_LENGTH, &logLength);
if (logLength > 0) {
GLchar *log = (GLchar *)malloc(logLength);
glGetShaderInfoLog(g_FragHandle, logLength, &logLength, log);
NSLog(@"FRAGMENT Shader compile log:\n%s", log);
free(log);
}
#endif
glAttachShader(g_ShaderHandle, g_VertHandle);
glAttachShader(g_ShaderHandle, g_FragHandle);
glLinkProgram(g_ShaderHandle);
g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "Texture");
g_AttribLocationProjMtx = glGetUniformLocation(g_ShaderHandle, "ProjMtx");
g_AttribLocationPosition = glGetAttribLocation(g_ShaderHandle, "Position");
g_AttribLocationUV = glGetAttribLocation(g_ShaderHandle, "UV");
g_AttribLocationColor = glGetAttribLocation(g_ShaderHandle, "Color");
glGenBuffers(1, &g_VboHandle);
glGenVertexArrays(1, &g_VaoHandle);
glBindVertexArray(g_VaoHandle);
glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
glEnableVertexAttribArray(g_AttribLocationPosition);
glEnableVertexAttribArray(g_AttribLocationUV);
glEnableVertexAttribArray(g_AttribLocationColor);
#define OFFSETOF(TYPE, ELEMENT) ((size_t)&(((TYPE *)0)->ELEMENT))
glVertexAttribPointer(g_AttribLocationPosition, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, pos));
glVertexAttribPointer(g_AttribLocationUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, uv));
glVertexAttribPointer(g_AttribLocationColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, col));
#undef OFFSETOF
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
ImGui_ImplIOS_CreateFontsTexture();
return true;
}

13
examples/ios_example/imguiex/main.m Normal file
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@ -0,0 +1,13 @@
//
// 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]));
}
}