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ocornut 9 years ago
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5
examples/README.txt
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@ -11,7 +11,7 @@ opengl_example/
Prefer following this example since it is the shortest one!
opengl3_example/
OpenGL exemple, using GLFW/GL3W + programmable pipeline.
OpenGL example, using GLFW/GL3W + programmable pipeline.
This uses more modern calls and custom shaders.
I don't think there is an advantage using this over the simpler example, but it is provided for reference.
@ -22,3 +22,6 @@ directx11_example/
DirectX11 example, Windows only.
This is quite long and tedious, because: DirectX11.
ios_example/
iOS example.
Using Synergy to access keyboard/mouse data from server computer. Synergy keyboard integration is rather hacky.

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examples/ios_example/.gitignore vendored
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.DS_Store
imguiex.xcodeproj/project.xcworkspace/
imguiex.xcodeproj/xcuserdata/

35
examples/ios_example/README.md
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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 "TouchPadding", 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.

365
examples/ios_example/imguiex.xcodeproj/project.pbxproj
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13
examples/ios_example/imguiex/AppDelegate.h
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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
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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
examples/ios_example/imguiex/Base.lproj/LaunchScreen.xib
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<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>

44
examples/ios_example/imguiex/Base.lproj/Main.storyboard
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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>

12
examples/ios_example/imguiex/GameViewController.h
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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
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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
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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
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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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examples/ios_example/imguiex/Shaders/Shader.fsh
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//
// Shader.fsh
// imguiex
varying lowp vec4 colorVarying;
void main()
{
gl_FragColor = colorVarying;
}

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examples/ios_example/imguiex/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;
}

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examples/ios_example/imguiex/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_test_window = true;
hud->show_example_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;
}
void DebugHUD_DoInterface( DebugHUD *hud )
{
if (hud->show_test_window)
{
ImGui::SetNextWindowPos( ImVec2( 400, 20 ), ImGuiSetCond_FirstUseEver );
ImGui::ShowTestWindow( &hud->show_test_window );
}
if (hud->show_example_window)
{
ImGui::SetNextWindowPos( ImVec2( 20, 20 ), ImGuiSetCond_FirstUseEver );
ImGui::SetNextWindowSize( ImVec2( 350, 200 ), ImGuiSetCond_FirstUseEver );
ImGui::Begin("Another Window", &hud->show_example_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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examples/ios_example/imguiex/debug_hud.h
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//
// debug_hud.h
// imguiex
#pragma once
typedef struct DebugHUD
{
bool show_test_window;
bool 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

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examples/ios_example/imguiex/imgui_impl_ios.h
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//
// imgui_impl_ios.h
// imguiex
//
// 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

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examples/ios_example/imguiex/imgui_impl_ios.mm
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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
// FIXME: Keyboard mapping is hacked in because Synergy doesn't give us character but only keycode which aren't really portable if you consider keyboard locale. See https://github.com/ocornut/imgui/pull/247
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))
{
// If this key maps to a character input, apply it
int charForKeycode = (modifiers & USYNERGY_MODIFIER_SHIFT) ? g_keycodeCharShifted[scanCode] : g_keycodeCharUnshifted[scanCode];
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
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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]));
}
}

636
examples/libs/usynergy/uSynergy.c
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/*
uSynergy client -- Implementation for the embedded Synergy client library
version 1.0.0, July 7th, 2012
Copyright (c) 2012 Alex Evans
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
#include "uSynergy.h"
#include <stdio.h>
#include <string.h>
//---------------------------------------------------------------------------------------------------------------------
// Internal helpers
//---------------------------------------------------------------------------------------------------------------------
/**
@brief Read 16 bit integer in network byte order and convert to native byte order
**/
static int16_t sNetToNative16(const unsigned char *value)
{
#ifdef USYNERGY_LITTLE_ENDIAN
return value[1] | (value[0] << 8);
#else
return value[0] | (value[1] << 8);
#endif
}
/**
@brief Read 32 bit integer in network byte order and convert to native byte order
**/
static int32_t sNetToNative32(const unsigned char *value)
{
#ifdef USYNERGY_LITTLE_ENDIAN
return value[3] | (value[2] << 8) | (value[1] << 16) | (value[0] << 24);
#else
return value[0] | (value[1] << 8) | (value[2] << 16) | (value[3] << 24);
#endif
}
/**
@brief Trace text to client
**/
static void sTrace(uSynergyContext *context, const char* text)
{
// Don't trace if we don't have a trace function
if (context->m_traceFunc != 0L)
context->m_traceFunc(context->m_cookie, text);
}
/**
@brief Add string to reply packet
**/
static void sAddString(uSynergyContext *context, const char *string)
{
size_t len = strlen(string);
memcpy(context->m_replyCur, string, len);
context->m_replyCur += len;
}
/**
@brief Add uint8 to reply packet
**/
static void sAddUInt8(uSynergyContext *context, uint8_t value)
{
*context->m_replyCur++ = value;
}
/**
@brief Add uint16 to reply packet
**/
static void sAddUInt16(uSynergyContext *context, uint16_t value)
{
uint8_t *reply = context->m_replyCur;
*reply++ = (uint8_t)(value >> 8);
*reply++ = (uint8_t)value;
context->m_replyCur = reply;
}
/**
@brief Add uint32 to reply packet
**/
static void sAddUInt32(uSynergyContext *context, uint32_t value)
{
uint8_t *reply = context->m_replyCur;
*reply++ = (uint8_t)(value >> 24);
*reply++ = (uint8_t)(value >> 16);
*reply++ = (uint8_t)(value >> 8);
*reply++ = (uint8_t)value;
context->m_replyCur = reply;
}
/**
@brief Send reply packet
**/
static uSynergyBool sSendReply(uSynergyContext *context)
{
// Set header size
uint8_t *reply_buf = context->m_replyBuffer;
uint32_t reply_len = (uint32_t)(context->m_replyCur - reply_buf); /* Total size of reply */
uint32_t body_len = reply_len - 4; /* Size of body */
uSynergyBool ret;
reply_buf[0] = (uint8_t)(body_len >> 24);
reply_buf[1] = (uint8_t)(body_len >> 16);
reply_buf[2] = (uint8_t)(body_len >> 8);
reply_buf[3] = (uint8_t)body_len;
// Send reply
ret = context->m_sendFunc(context->m_cookie, context->m_replyBuffer, reply_len);
// Reset reply buffer write pointer
context->m_replyCur = context->m_replyBuffer+4;
return ret;
}
/**
@brief Call mouse callback after a mouse event
**/
static void sSendMouseCallback(uSynergyContext *context)
{
// Skip if no callback is installed
if (context->m_mouseCallback == 0L)
return;
// Send callback
context->m_mouseCallback(context->m_cookie, context->m_mouseX, context->m_mouseY, context->m_mouseWheelX,
context->m_mouseWheelY, context->m_mouseButtonLeft, context->m_mouseButtonRight, context->m_mouseButtonMiddle);
}
/**
@brief Send keyboard callback when a key has been pressed or released
**/
static void sSendKeyboardCallback(uSynergyContext *context, uint16_t key, uint16_t modifiers, uSynergyBool down, uSynergyBool repeat)
{
// Skip if no callback is installed
if (context->m_keyboardCallback == 0L)
return;
// Send callback
context->m_keyboardCallback(context->m_cookie, key, modifiers, down, repeat);
}
/**
@brief Send joystick callback
**/
static void sSendJoystickCallback(uSynergyContext *context, uint8_t joyNum)
{
int8_t *sticks;
// Skip if no callback is installed
if (context->m_joystickCallback == 0L)
return;
// Send callback
sticks = context->m_joystickSticks[joyNum];
context->m_joystickCallback(context->m_cookie, joyNum, context->m_joystickButtons[joyNum], sticks[0], sticks[1], sticks[2], sticks[3]);
}
/**
@brief Parse a single client message, update state, send callbacks and send replies
**/
#define USYNERGY_IS_PACKET(pkt_id) memcmp(message+4, pkt_id, 4)==0
static void sProcessMessage(uSynergyContext *context, const uint8_t *message)
{
// We have a packet!
if (memcmp(message+4, "Synergy", 7)==0)
{
// Welcome message
// kMsgHello = "Synergy%2i%2i"
// kMsgHelloBack = "Synergy%2i%2i%s"
sAddString(context, "Synergy");
sAddUInt16(context, USYNERGY_PROTOCOL_MAJOR);
sAddUInt16(context, USYNERGY_PROTOCOL_MINOR);
sAddUInt32(context, (uint32_t)strlen(context->m_clientName));
sAddString(context, context->m_clientName);
if (!sSendReply(context))
{
// Send reply failed, let's try to reconnect
sTrace(context, "SendReply failed, trying to reconnect in a second");
context->m_connected = USYNERGY_FALSE;
context->m_sleepFunc(context->m_cookie, 1000);
}
else
{
// Let's assume we're connected
char buffer[256+1];
sprintf(buffer, "Connected as client \"%s\"", context->m_clientName);
sTrace(context, buffer);
context->m_hasReceivedHello = USYNERGY_TRUE;
}
return;
}
else if (USYNERGY_IS_PACKET("QINF"))
{
// Screen info. Reply with DINF
// kMsgQInfo = "QINF"
// kMsgDInfo = "DINF%2i%2i%2i%2i%2i%2i%2i"
uint16_t x = 0, y = 0, warp = 0;
sAddString(context, "DINF");
sAddUInt16(context, x);
sAddUInt16(context, y);
sAddUInt16(context, context->m_clientWidth);
sAddUInt16(context, context->m_clientHeight);
sAddUInt16(context, warp);
sAddUInt16(context, 0); // mx?
sAddUInt16(context, 0); // my?
sSendReply(context);
return;
}
else if (USYNERGY_IS_PACKET("CIAK"))
{
// Do nothing?
// kMsgCInfoAck = "CIAK"
return;
}
else if (USYNERGY_IS_PACKET("CROP"))
{
// Do nothing?
// kMsgCResetOptions = "CROP"
return;
}
else if (USYNERGY_IS_PACKET("CINN"))
{
// Screen enter. Reply with CNOP
// kMsgCEnter = "CINN%2i%2i%4i%2i"
// Obtain the Synergy sequence number
context->m_sequenceNumber = sNetToNative32(message + 12);
context->m_isCaptured = USYNERGY_TRUE;
// Call callback
if (context->m_screenActiveCallback != 0L)
context->m_screenActiveCallback(context->m_cookie, USYNERGY_TRUE);
}
else if (USYNERGY_IS_PACKET("COUT"))
{
// Screen leave
// kMsgCLeave = "COUT"
context->m_isCaptured = USYNERGY_FALSE;
// Call callback
if (context->m_screenActiveCallback != 0L)
context->m_screenActiveCallback(context->m_cookie, USYNERGY_FALSE);
}
else if (USYNERGY_IS_PACKET("DMDN"))
{
// Mouse down
// kMsgDMouseDown = "DMDN%1i"
char btn = message[8]-1;
if (btn==2)
context->m_mouseButtonRight = USYNERGY_TRUE;
else if (btn==1)
context->m_mouseButtonMiddle = USYNERGY_TRUE;
else
context->m_mouseButtonLeft = USYNERGY_TRUE;
sSendMouseCallback(context);
}
else if (USYNERGY_IS_PACKET("DMUP"))
{
// Mouse up
// kMsgDMouseUp = "DMUP%1i"
char btn = message[8]-1;
if (btn==2)
context->m_mouseButtonRight = USYNERGY_FALSE;
else if (btn==1)
context->m_mouseButtonMiddle = USYNERGY_FALSE;
else
context->m_mouseButtonLeft = USYNERGY_FALSE;
sSendMouseCallback(context);
}
else if (USYNERGY_IS_PACKET("DMMV"))
{
// Mouse move. Reply with CNOP
// kMsgDMouseMove = "DMMV%2i%2i"
context->m_mouseX = sNetToNative16(message+8);
context->m_mouseY = sNetToNative16(message+10);
sSendMouseCallback(context);
}
else if (USYNERGY_IS_PACKET("DMWM"))
{
// Mouse wheel
// kMsgDMouseWheel = "DMWM%2i%2i"
// kMsgDMouseWheel1_0 = "DMWM%2i"
context->m_mouseWheelX += sNetToNative16(message+8);
context->m_mouseWheelY += sNetToNative16(message+10);
sSendMouseCallback(context);
}
else if (USYNERGY_IS_PACKET("DKDN"))
{
// Key down
// kMsgDKeyDown = "DKDN%2i%2i%2i"
// kMsgDKeyDown1_0 = "DKDN%2i%2i"
//uint16_t id = sNetToNative16(message+8);
uint16_t mod = sNetToNative16(message+10);
uint16_t key = sNetToNative16(message+12);
sSendKeyboardCallback(context, key, mod, USYNERGY_TRUE, USYNERGY_FALSE);
}
else if (USYNERGY_IS_PACKET("DKRP"))
{
// Key repeat
// kMsgDKeyRepeat = "DKRP%2i%2i%2i%2i"
// kMsgDKeyRepeat1_0 = "DKRP%2i%2i%2i"
uint16_t mod = sNetToNative16(message+10);
// uint16_t count = sNetToNative16(message+12);
uint16_t key = sNetToNative16(message+14);
sSendKeyboardCallback(context, key, mod, USYNERGY_TRUE, USYNERGY_TRUE);
}
else if (USYNERGY_IS_PACKET("DKUP"))
{
// Key up
// kMsgDKeyUp = "DKUP%2i%2i%2i"
// kMsgDKeyUp1_0 = "DKUP%2i%2i"
//uint16 id=Endian::sNetToNative(sbuf[4]);
uint16_t mod = sNetToNative16(message+10);
uint16_t key = sNetToNative16(message+12);
sSendKeyboardCallback(context, key, mod, USYNERGY_FALSE, USYNERGY_FALSE);
}
else if (USYNERGY_IS_PACKET("DGBT"))
{
// Joystick buttons
// kMsgDGameButtons = "DGBT%1i%2i";
uint8_t joy_num = message[8];
if (joy_num<USYNERGY_NUM_JOYSTICKS)
{
// Copy button state, then send callback
context->m_joystickButtons[joy_num] = (message[9] << 8) | message[10];
sSendJoystickCallback(context, joy_num);
}
}
else if (USYNERGY_IS_PACKET("DGST"))
{
// Joystick sticks
// kMsgDGameSticks = "DGST%1i%1i%1i%1i%1i";
uint8_t joy_num = message[8];
if (joy_num<USYNERGY_NUM_JOYSTICKS)
{
// Copy stick state, then send callback
memcpy(context->m_joystickSticks[joy_num], message+9, 4);
sSendJoystickCallback(context, joy_num);
}
}
else if (USYNERGY_IS_PACKET("DSOP"))
{
// Set options
// kMsgDSetOptions = "DSOP%4I"
}
else if (USYNERGY_IS_PACKET("CALV"))
{
// Keepalive, reply with CALV and then CNOP
// kMsgCKeepAlive = "CALV"
sAddString(context, "CALV");
sSendReply(context);
// now reply with CNOP
}
else if (USYNERGY_IS_PACKET("DCLP"))
{
// Clipboard message
// kMsgDClipboard = "DCLP%1i%4i%s"
//
// The clipboard message contains:
// 1 uint32: The size of the message
// 4 chars: The identifier ("DCLP")
// 1 uint8: The clipboard index
// 1 uint32: The sequence number. It's zero, because this message is always coming from the server?
// 1 uint32: The total size of the remaining 'string' (as per the Synergy %s string format (which is 1 uint32 for size followed by a char buffer (not necessarily null terminated)).
// 1 uint32: The number of formats present in the message
// And then 'number of formats' times the following:
// 1 uint32: The format of the clipboard data
// 1 uint32: The size n of the clipboard data
// n uint8: The clipboard data
const uint8_t * parse_msg = message+17;
uint32_t num_formats = sNetToNative32(parse_msg);
parse_msg += 4;
for (; num_formats; num_formats--)
{
// Parse clipboard format header
uint32_t format = sNetToNative32(parse_msg);
uint32_t size = sNetToNative32(parse_msg+4);
parse_msg += 8;
// Call callback
if (context->m_clipboardCallback)
context->m_clipboardCallback(context->m_cookie, format, parse_msg, size);
parse_msg += size;
}
}
else
{
// Unknown packet, could be any of these
// kMsgCNoop = "CNOP"
// kMsgCClose = "CBYE"
// kMsgCClipboard = "CCLP%1i%4i"
// kMsgCScreenSaver = "CSEC%1i"
// kMsgDKeyRepeat = "DKRP%2i%2i%2i%2i"
// kMsgDKeyRepeat1_0 = "DKRP%2i%2i%2i"
// kMsgDMouseRelMove = "DMRM%2i%2i"
// kMsgEIncompatible = "EICV%2i%2i"
// kMsgEBusy = "EBSY"
// kMsgEUnknown = "EUNK"
// kMsgEBad = "EBAD"
char buffer[64];
sprintf(buffer, "Unknown packet '%c%c%c%c'", message[4], message[5], message[6], message[7]);
sTrace(context, buffer);
return;
}
// Reply with CNOP maybe?
sAddString(context, "CNOP");
sSendReply(context);
}
#undef USYNERGY_IS_PACKET
/**
@brief Mark context as being disconnected
**/
static void sSetDisconnected(uSynergyContext *context)
{
context->m_connected = USYNERGY_FALSE;
context->m_hasReceivedHello = USYNERGY_FALSE;
context->m_isCaptured = USYNERGY_FALSE;
context->m_replyCur = context->m_replyBuffer + 4;
context->m_sequenceNumber = 0;
}
/**
@brief Update a connected context
**/
static void sUpdateContext(uSynergyContext *context)
{
/* Receive data (blocking) */
int receive_size = USYNERGY_RECEIVE_BUFFER_SIZE - context->m_receiveOfs;
int num_received = 0;
int packlen = 0;
if (context->m_receiveFunc(context->m_cookie, context->m_receiveBuffer + context->m_receiveOfs, receive_size, &num_received) == USYNERGY_FALSE)
{
/* Receive failed, let's try to reconnect */
char buffer[128];
sprintf(buffer, "Receive failed (%d bytes asked, %d bytes received), trying to reconnect in a second", receive_size, num_received);
sTrace(context, buffer);
sSetDisconnected(context);
context->m_sleepFunc(context->m_cookie, 1000);
return;
}
context->m_receiveOfs += num_received;
/* If we didn't receive any data then we're probably still polling to get connected and
therefore not getting any data back. To avoid overloading the system with a Synergy
thread that would hammer on polling, we let it rest for a bit if there's no data. */
if (num_received == 0)
context->m_sleepFunc(context->m_cookie, 500);
/* Check for timeouts */
if (context->m_hasReceivedHello)
{
uint32_t cur_time = context->m_getTimeFunc();
if (num_received == 0)
{
/* Timeout after 2 secs of inactivity (we received no CALV) */
if ((cur_time - context->m_lastMessageTime) > USYNERGY_IDLE_TIMEOUT)
sSetDisconnected(context);
}
else
context->m_lastMessageTime = cur_time;
}
/* Eat packets */
for (;;)
{
/* Grab packet length and bail out if the packet goes beyond the end of the buffer */
packlen = sNetToNative32(context->m_receiveBuffer);
if (packlen+4 > context->m_receiveOfs)
break;
/* Process message */
sProcessMessage(context, context->m_receiveBuffer);
/* Move packet to front of buffer */
memmove(context->m_receiveBuffer, context->m_receiveBuffer+packlen+4, context->m_receiveOfs-packlen-4);
context->m_receiveOfs -= packlen+4;
}
/* Throw away over-sized packets */
if (packlen > USYNERGY_RECEIVE_BUFFER_SIZE)
{
/* Oversized packet, ditch tail end */
char buffer[128];
sprintf(buffer, "Oversized packet: '%c%c%c%c' (length %d)", context->m_receiveBuffer[4], context->m_receiveBuffer[5], context->m_receiveBuffer[6], context->m_receiveBuffer[7], packlen);
sTrace(context, buffer);
num_received = context->m_receiveOfs-4; // 4 bytes for the size field
while (num_received != packlen)
{
int buffer_left = packlen - num_received;
int to_receive = buffer_left < USYNERGY_RECEIVE_BUFFER_SIZE ? buffer_left : USYNERGY_RECEIVE_BUFFER_SIZE;
int ditch_received = 0;
if (context->m_receiveFunc(context->m_cookie, context->m_receiveBuffer, to_receive, &ditch_received) == USYNERGY_FALSE)
{
/* Receive failed, let's try to reconnect */
sTrace(context, "Receive failed, trying to reconnect in a second");
sSetDisconnected(context);
context->m_sleepFunc(context->m_cookie, 1000);
break;
}
else
{
num_received += ditch_received;
}
}
context->m_receiveOfs = 0;
}
}
//---------------------------------------------------------------------------------------------------------------------
// Public interface
//---------------------------------------------------------------------------------------------------------------------
/**
@brief Initialize uSynergy context
**/
void uSynergyInit(uSynergyContext *context)
{
/* Zero memory */
memset(context, 0, sizeof(uSynergyContext));
/* Initialize to default state */
sSetDisconnected(context);
}
/**
@brief Update uSynergy
**/
void uSynergyUpdate(uSynergyContext *context)
{
if (context->m_connected)
{
/* Update context, receive data, call callbacks */
sUpdateContext(context);
}
else
{
/* Try to connect */
if (context->m_connectFunc(context->m_cookie))
context->m_connected = USYNERGY_TRUE;
}
}
/**
@brief Send clipboard data
**/
void uSynergySendClipboard(uSynergyContext *context, const char *text)
{
// Calculate maximum size that will fit in a reply packet
uint32_t overhead_size = 4 + /* Message size */
4 + /* Message ID */
1 + /* Clipboard index */
4 + /* Sequence number */
4 + /* Rest of message size (because it's a Synergy string from here on) */
4 + /* Number of clipboard formats */
4 + /* Clipboard format */
4; /* Clipboard data length */
uint32_t max_length = USYNERGY_REPLY_BUFFER_SIZE - overhead_size;
// Clip text to max length
uint32_t text_length = (uint32_t)strlen(text);
if (text_length > max_length)
{
char buffer[128];
sprintf(buffer, "Clipboard buffer too small, clipboard truncated at %d characters", max_length);
sTrace(context, buffer);
text_length = max_length;
}
// Assemble packet
sAddString(context, "DCLP");
sAddUInt8(context, 0); /* Clipboard index */
sAddUInt32(context, context->m_sequenceNumber);
sAddUInt32(context, 4+4+4+text_length); /* Rest of message size: numFormats, format, length, data */
sAddUInt32(context, 1); /* Number of formats (only text for now) */
sAddUInt32(context, USYNERGY_CLIPBOARD_FORMAT_TEXT);
sAddUInt32(context, text_length);
sAddString(context, text);
sSendReply(context);
}

420
examples/libs/usynergy/uSynergy.h
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@ -0,0 +1,420 @@
/*
uSynergy client -- Interface for the embedded Synergy client library
version 1.0.0, July 7th, 2012
Copyright (C) 2012 Synergy Si Ltd.
Copyright (c) 2012 Alex Evans
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
//---------------------------------------------------------------------------------------------------------------------
// Configuration
//---------------------------------------------------------------------------------------------------------------------
/**
@brief Determine endianness
**/
#if defined(USYNERGY_LITTLE_ENDIAN) && defined(USYNERGY_BIG_ENDIAN)
/* Ambiguous: both endians specified */
#error "Can't define both USYNERGY_LITTLE_ENDIAN and USYNERGY_BIG_ENDIAN"
#elif !defined(USYNERGY_LITTLE_ENDIAN) && !defined(USYNERGY_BIG_ENDIAN)
/* Attempt to auto detect */
#if defined(__LITTLE_ENDIAN__) || defined(LITTLE_ENDIAN) || (_BYTE_ORDER == _LITTLE_ENDIAN)
#define USYNERGY_LITTLE_ENDIAN
#elif defined(__BIG_ENDIAN__) || defined(BIG_ENDIAN) || (_BYTE_ORDER == _BIG_ENDIAN)
#define USYNERGY_BIG_ENDIAN
#else
#error "Can't detect endian-nes, please defined either USYNERGY_LITTLE_ENDIAN or USYNERGY_BIG_ENDIAN";
#endif
#else
/* User-specified endian-nes, nothing to do for us */
#endif
//---------------------------------------------------------------------------------------------------------------------
// Types and Constants
//---------------------------------------------------------------------------------------------------------------------
/**
@brief Boolean type
**/
typedef int uSynergyBool;
#define USYNERGY_FALSE 0 /* False value */
#define USYNERGY_TRUE 1 /* True value */
/**
@brief User context type
The uSynergyCookie type is an opaque type that is used by uSynergy to communicate to the client. It is passed along to
callback functions as context.
**/
typedef struct { int ignored; } * uSynergyCookie;
/**
@brief Clipboard types
**/
enum uSynergyClipboardFormat
{
USYNERGY_CLIPBOARD_FORMAT_TEXT = 0, /* Text format, UTF-8, newline is LF */
USYNERGY_CLIPBOARD_FORMAT_BITMAP = 1, /* Bitmap format, BMP 24/32bpp, BI_RGB */
USYNERGY_CLIPBOARD_FORMAT_HTML = 2, /* HTML format, HTML fragment, UTF-8, newline is LF */
};
/**
@brief Constants and limits
**/
#define USYNERGY_NUM_JOYSTICKS 4 /* Maximum number of supported joysticks */
#define USYNERGY_PROTOCOL_MAJOR 1 /* Major protocol version */
#define USYNERGY_PROTOCOL_MINOR 4 /* Minor protocol version */
#define USYNERGY_IDLE_TIMEOUT 2000 /* Timeout in milliseconds before reconnecting */
#define USYNERGY_TRACE_BUFFER_SIZE 1024 /* Maximum length of traced message */
#define USYNERGY_REPLY_BUFFER_SIZE 1024 /* Maximum size of a reply packet */
#define USYNERGY_RECEIVE_BUFFER_SIZE 4096 /* Maximum size of an incoming packet */
/**
@brief Keyboard constants
**/
#define USYNERGY_MODIFIER_SHIFT 0x0001 /* Shift key modifier */
#define USYNERGY_MODIFIER_CTRL 0x0002 /* Ctrl key modifier */
#define USYNERGY_MODIFIER_ALT 0x0004 /* Alt key modifier */
#define USYNERGY_MODIFIER_META 0x0008 /* Meta key modifier */
#define USYNERGY_MODIFIER_WIN 0x0010 /* Windows key modifier */
#define USYNERGY_MODIFIER_ALT_GR 0x0020 /* AltGr key modifier */
#define USYNERGY_MODIFIER_LEVEL5LOCK 0x0040 /* Level5Lock key modifier */
#define USYNERGY_MODIFIER_CAPSLOCK 0x1000 /* CapsLock key modifier */
#define USYNERGY_MODIFIER_NUMLOCK 0x2000 /* NumLock key modifier */
#define USYNERGY_MODIFIER_SCROLLOCK 0x4000 /* ScrollLock key modifier */
//---------------------------------------------------------------------------------------------------------------------
// Functions and Callbacks
//---------------------------------------------------------------------------------------------------------------------
/**
@brief Connect function
This function is called when uSynergy needs to connect to the host. It doesn't imply a network implementation or
destination address, that must all be handled on the user side. The function should return USYNERGY_TRUE if a
connection was established or USYNERGY_FALSE if it could not connect.
When network errors occur (e.g. uSynergySend or uSynergyReceive fail) then the connect call will be called again
so the implementation of the function must close any old connections and clean up resources before retrying.
@param cookie Cookie supplied in the Synergy context
**/
typedef uSynergyBool (*uSynergyConnectFunc)(uSynergyCookie cookie);
/**
@brief Send function
This function is called when uSynergy needs to send something over the default connection. It should return
USYNERGY_TRUE if sending succeeded and USYNERGY_FALSE otherwise. This function should block until the send
operation is completed.
@param cookie Cookie supplied in the Synergy context
@param buffer Address of buffer to send
@param length Length of buffer to send
**/
typedef uSynergyBool (*uSynergySendFunc)(uSynergyCookie cookie, const uint8_t *buffer, int length);
/**
@brief Receive function
This function is called when uSynergy needs to receive data from the default connection. It should return
USYNERGY_TRUE if receiving data succeeded and USYNERGY_FALSE otherwise. This function should block until data
has been received and wait for data to become available. If @a outLength is set to 0 upon completion it is
assumed that the connection is alive, but still in a connecting state and needs time to settle.
@param cookie Cookie supplied in the Synergy context
@param buffer Address of buffer to receive data into
@param maxLength Maximum amount of bytes to write into the receive buffer
@param outLength Address of integer that receives the actual amount of bytes written into @a buffer
**/
typedef uSynergyBool (*uSynergyReceiveFunc)(uSynergyCookie cookie, uint8_t *buffer, int maxLength, int* outLength);
/**
@brief Thread sleep function
This function is called when uSynergy wants to suspend operation for a while before retrying an operation. It
is mostly used when a socket times out or disconnect occurs to prevent uSynergy from continuously hammering a
network connection in case the network is down.
@param cookie Cookie supplied in the Synergy context
@param timeMs Time to sleep the current thread (in milliseconds)
**/
typedef void (*uSynergySleepFunc)(uSynergyCookie cookie, int timeMs);
/**
@brief Get time function
This function is called when uSynergy needs to know the current time. This is used to determine when timeouts
have occured. The time base should be a cyclic millisecond time value.
@returns Time value in milliseconds
**/
typedef uint32_t (*uSynergyGetTimeFunc)();
/**
@brief Trace function
This function is called when uSynergy wants to trace something. It is optional to show these messages, but they
are often useful when debugging. uSynergy only traces major events like connecting and disconnecting. Usually
only a single trace is shown when the connection is established and no more trace are called.
@param cookie Cookie supplied in the Synergy context
@param text Text to be traced
**/
typedef void (*uSynergyTraceFunc)(uSynergyCookie cookie, const char *text);
/**
@brief Screen active callback
This callback is called when Synergy makes the screen active or inactive. This
callback is usually sent when the mouse enters or leaves the screen.
@param cookie Cookie supplied in the Synergy context
@param active Activation flag, 1 if the screen has become active, 0 if the screen has become inactive
**/
typedef void (*uSynergyScreenActiveCallback)(uSynergyCookie cookie, uSynergyBool active);
/**
@brief Mouse callback
This callback is called when a mouse events happens. The mouse X and Y position,
wheel and button state is communicated in the message. It's up to the user to
interpret if this is a mouse up, down, double-click or other message.
@param cookie Cookie supplied in the Synergy context
@param x Mouse X position
@param y Mouse Y position
@param wheelX Mouse wheel X position
@param wheelY Mouse wheel Y position
@param buttonLeft Left button pressed status, 0 for released, 1 for pressed
@param buttonMiddle Middle button pressed status, 0 for released, 1 for pressed
@param buttonRight Right button pressed status, 0 for released, 1 for pressed
**/
typedef void (*uSynergyMouseCallback)(uSynergyCookie cookie, uint16_t x, uint16_t y, int16_t wheelX, int16_t wheelY, uSynergyBool buttonLeft, uSynergyBool buttonRight, uSynergyBool buttonMiddle);
/**
@brief Key event callback
This callback is called when a key is pressed or released.
@param cookie Cookie supplied in the Synergy context
@param key Key code of key that was pressed or released
@param modifiers Status of modifier keys (alt, shift, etc.)
@param down Down or up status, 1 is key is pressed down, 0 if key is released (up)
@param repeat Repeat flag, 1 if the key is down because the key is repeating, 0 if the key is initially pressed by the user
**/
typedef void (*uSynergyKeyboardCallback)(uSynergyCookie cookie, uint16_t key, uint16_t modifiers, uSynergyBool down, uSynergyBool repeat);
/**
@brief Joystick event callback
This callback is called when a joystick stick or button changes. It is possible that multiple callbacks are
fired when different sticks or buttons change as these are individual messages in the packet stream. Each
callback will contain all the valid state for the different axes and buttons. The last callback received will
represent the most current joystick state.
@param cookie Cookie supplied in the Synergy context
@param joyNum Joystick number, always in the range [0 ... USYNERGY_NUM_JOYSTICKS>
@param buttons Button pressed mask
@param leftStickX Left stick X position, in range [-127 ... 127]
@param leftStickY Left stick Y position, in range [-127 ... 127]
@param rightStickX Right stick X position, in range [-127 ... 127]
@param rightStickY Right stick Y position, in range [-127 ... 127]
**/
typedef void (*uSynergyJoystickCallback)(uSynergyCookie cookie, uint8_t joyNum, uint16_t buttons, int8_t leftStickX, int8_t leftStickY, int8_t rightStickX, int8_t rightStickY);
/**
@brief Clipboard event callback
This callback is called when something is placed on the clipboard. Multiple callbacks may be fired for
multiple clipboard formats if they are supported. The data provided is read-only and may not be modified
by the application.
@param cookie Cookie supplied in the Synergy context
@param format Clipboard format
@param data Memory area containing the clipboard raw data
@param size Size of clipboard data
**/
typedef void (*uSynergyClipboardCallback)(uSynergyCookie cookie, enum uSynergyClipboardFormat format, const uint8_t *data, uint32_t size);
//---------------------------------------------------------------------------------------------------------------------
// Context
//---------------------------------------------------------------------------------------------------------------------
/**
@brief uSynergy context
**/
typedef struct
{
/* Mandatory configuration data, filled in by client */
uSynergyConnectFunc m_connectFunc; /* Connect function */
uSynergySendFunc m_sendFunc; /* Send data function */
uSynergyReceiveFunc m_receiveFunc; /* Receive data function */
uSynergySleepFunc m_sleepFunc; /* Thread sleep function */
uSynergyGetTimeFunc m_getTimeFunc; /* Get current time function */
const char* m_clientName; /* Name of Synergy Screen / Client */
uint16_t m_clientWidth; /* Width of screen */
uint16_t m_clientHeight; /* Height of screen */
/* Optional configuration data, filled in by client */
uSynergyCookie m_cookie; /* Cookie pointer passed to callback functions (can be NULL) */
uSynergyTraceFunc m_traceFunc; /* Function for tracing status (can be NULL) */
uSynergyScreenActiveCallback m_screenActiveCallback; /* Callback for entering and leaving screen */
uSynergyMouseCallback m_mouseCallback; /* Callback for mouse events */
uSynergyKeyboardCallback m_keyboardCallback; /* Callback for keyboard events */
uSynergyJoystickCallback m_joystickCallback; /* Callback for joystick events */
uSynergyClipboardCallback m_clipboardCallback; /* Callback for clipboard events */
/* State data, used internall by client, initialized by uSynergyInit() */
uSynergyBool m_connected; /* Is our socket connected? */
uSynergyBool m_hasReceivedHello; /* Have we received a 'Hello' from the server? */
uSynergyBool m_isCaptured; /* Is Synergy active (i.e. this client is receiving input messages?) */
uint32_t m_lastMessageTime; /* Time at which last message was received */
uint32_t m_sequenceNumber; /* Packet sequence number */
uint8_t m_receiveBuffer[USYNERGY_RECEIVE_BUFFER_SIZE]; /* Receive buffer */
int m_receiveOfs; /* Receive buffer offset */
uint8_t m_replyBuffer[USYNERGY_REPLY_BUFFER_SIZE]; /* Reply buffer */
uint8_t* m_replyCur; /* Write offset into reply buffer */
uint16_t m_mouseX; /* Mouse X position */
uint16_t m_mouseY; /* Mouse Y position */
int16_t m_mouseWheelX; /* Mouse wheel X position */
int16_t m_mouseWheelY; /* Mouse wheel Y position */
uSynergyBool m_mouseButtonLeft; /* Mouse left button */
uSynergyBool m_mouseButtonRight; /* Mouse right button */
uSynergyBool m_mouseButtonMiddle; /* Mouse middle button */
int8_t m_joystickSticks[USYNERGY_NUM_JOYSTICKS][4]; /* Joystick stick position in 2 axes for 2 sticks */
uint16_t m_joystickButtons[USYNERGY_NUM_JOYSTICKS]; /* Joystick button state */
} uSynergyContext;
//---------------------------------------------------------------------------------------------------------------------
// Interface
//---------------------------------------------------------------------------------------------------------------------
/**
@brief Initialize uSynergy context
This function initializes @a context for use. Call this function directly after
creating the context, before filling in any configuration data in it. Not calling
this function will cause undefined behavior.
@param context Context to be initialized
**/
extern void uSynergyInit(uSynergyContext *context);
/**
@brief Update uSynergy
This function updates uSynergy and does the bulk of the work. It does connection management,
receiving data, reconnecting after errors or timeouts and so on. It assumes that networking
operations are blocking and it can suspend the current thread if it needs to wait. It is
best practice to call uSynergyUpdate from a background thread so it is responsive.
Because uSynergy relies mostly on blocking calls it will mostly stay in thread sleep state
waiting for system mutexes and won't eat much memory.
uSynergyUpdate doesn't do any memory allocations or have any side effects beyond those of
the callbacks it calls.
@param context Context to be updated
**/
extern void uSynergyUpdate(uSynergyContext *context);
/**
@brief Send clipboard data
This function sets new clipboard data and sends it to the server. Use this function if
your client cuts or copies data onto the clipboard that it needs to share with the
server.
Currently there is only support for plaintext, but HTML and image data could be
supported with some effort.
@param context Context to send clipboard data to
@param text Text to set to the clipboard
**/
extern void uSynergySendClipboard(uSynergyContext *context, const char *text);
#ifdef __cplusplus
};
#endif
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