All around update and fixes

git-svn-id: http://xni.googlecode.com/svn/XNI@104 ac433895-eea3-a490-d80a-17149a75e588

Classes/Retronator/Xni/Framework/Audio/SoundEffect+Internal.h

@@ -12,6 +12,8 @@
 
 @interface SoundEffect (Internal)
 
+@property (nonatomic, readonly) NSUInteger bufferID;
+
 + (void) update;
 
 @end

Classes/Retronator/Xni/Framework/Audio/SoundEffect.m

@@ -7,6 +7,7 @@
 //
 
 #import "SoundEffect.h"
+#import "SoundEffect+Internal.h"
 
 #import "Retronator.Xni.Framework.Audio.h"
 
@@ -68,6 +69,10 @@ static float masterVolume = 1;
 
 @synthesize duration, name;
 
+- (NSUInteger)bufferID {
+    return bufferID;
+}
+
 + (float) speedOfSound {
 	return speedOfSound;
 }
@@ -125,7 +130,7 @@ static float masterVolume = 1;
 }
 
 - (SoundEffectInstance *) createInstance {
-	return [[[SoundEffectInstance alloc] initWithBufferID:bufferID] autorelease];
+	return [[[SoundEffectInstance alloc] initWithSoundEffect:self] autorelease];
 }
 
 - (BOOL) play {

Classes/Retronator/Xni/Framework/Audio/SoundEffectInstance+Internal.h

@@ -11,6 +11,6 @@
 
 @interface SoundEffectInstance (Internal)
 
-- (id) initWithBufferID:(NSUInteger)bufferID;
+- (id) initWithSoundEffect:(SoundEffect*)soundEffect;
 
 @end

Classes/Retronator/Xni/Framework/Audio/SoundEffectInstance.h

@@ -16,6 +16,7 @@
 @private
 	BOOL isLooped;	
 	float pan, pitch, volume;
+    SoundEffect *parent;
 	NSUInteger sourceID;
 }
 

Classes/Retronator/Xni/Framework/Audio/SoundEffectInstance.m

@@ -8,18 +8,21 @@
 
 #import "SoundEffectInstance.h"
 #import "SoundEffectInstance+Internal.h"
+#import "SoundEffect+Internal.h"
 
 @implementation SoundEffectInstance
 
-- (id) initWithBufferID:(NSUInteger)bufferID
+- (id) initWithSoundEffect:(SoundEffect *)soundEffect
 {
 	self = [super init];
 	if (self != nil) {
+        parent = [soundEffect retain];
+        
 		// grab a source ID from openAL
 		alGenSources(1, &sourceID); 
 		
 		// attach the buffer to the source
-		alSourcei(sourceID, AL_BUFFER, bufferID);
+		alSourcei(sourceID, AL_BUFFER, parent.bufferID);
 		
 		// set some basic source prefs
 		alSourcef(sourceID, AL_PITCH, 1.0f);
@@ -84,6 +87,7 @@
 - (void) dealloc
 {
 	alDeleteSources(1, &sourceID);
+    [parent release];
 	[super dealloc];
 }
 

Classes/Retronator/Xni/Framework/Content/Pipeline/ContentIdentity.m

@@ -15,4 +15,12 @@
 @synthesize sourceFilename;
 @synthesize sourceTool;
 
+- (void)dealloc
+{
+    [fragmentIdentifier release];
+    [sourceFilename release];
+    [sourceTool release];
+    [super dealloc];
+}
+
 @end

Classes/Retronator/Xni/Framework/DrawableGameComponent.h

@@ -29,4 +29,7 @@
 - (void) loadContent;
 - (void) unloadContent;
 
+- (void) onVisibleChanged;
+- (void) onDrawOrderChanged;
+
 @end

Classes/Retronator/Xni/Framework/DrawableGameComponent.m

@@ -30,7 +30,7 @@
 - (void) setVisible:(BOOL)value {
 	if (visible != value) {
 		visible = value;
-		[visibleChanged raiseWithSender:self];
+        [self onVisibleChanged];
 	}
 } 
 
@@ -38,7 +38,7 @@
 - (void) setDrawOrder:(int)value {
 	if (drawOrder != value) {
 		drawOrder = value;
-		[drawOrderChanged raiseWithSender:self];
+        [self onDrawOrderChanged];
 	}
 } 
 
@@ -60,6 +60,14 @@
 - (void) drawWithGameTime:(GameTime*)gameTime {}
 - (void) unloadContent {}
 
+- (void)onVisibleChanged {
+    [visibleChanged raiseWithSender:self];
+}
+
+- (void)onDrawOrderChanged {
+    [drawOrderChanged raiseWithSender:self];    
+}
+
 - (void) dealloc
 {
 	if (contentLoaded) {

Classes/Retronator/Xni/Framework/Game.h

@@ -46,9 +46,7 @@
 	NSMutableArray *enabledComponents;
 	NSMutableArray *visibleComponents;
 	NSMutableArray *componentsList;
-	
-	NSMutableSet *initializedComponents;
-    	
+	    	
     // Services
     GameServiceContainer *services;	
 	

Classes/Retronator/Xni/Framework/Game.m

@@ -14,6 +14,8 @@
 #import "Retronator.Xni.Framework.Content.h"
 #import "TouchPanel+Internal.h"
 #import "GameWindow+Internal.h"
+#import "GameViewController.h"
+#import "GameView.h"
 #import "Guide+Internal.h"
 #import "SoundEffect+Internal.h"
 
@@ -57,9 +59,7 @@ static NSArray *drawOrderSort;
 		// First it is used for constructing a list of components, that need to be initialized.
 		// In run it is used to make a copy of enabled/visible components for enumerating over them.
 		componentsList = [[NSMutableArray alloc] init];
-        
-		initializedComponents = [[NSMutableSet alloc] init];
-		
+        		
         [components.componentAdded subscribeDelegate:
 		 [Delegate delegateWithTarget:self Method:@selector(componentAddedTo:eventArgs:)]];
 		
@@ -84,7 +84,7 @@ static NSArray *drawOrderSort;
 		[Guide initializeWithGame:self];
 		
         // Get the game host.
-        gameHost = (GameHost*)[UIApplication sharedApplication];
+        gameHost = (GameHost*)[UIApplication sharedApplication];        
     }
     
     return self;
@@ -130,15 +130,26 @@ static NSArray *drawOrderSort;
     inRun = YES;
     [self beginRun];
     
-    // First update with zero gameTime.
-    [self updateWithGameTime:gameTime];    
-    lastFrameTime = [[NSDate alloc] init];
+    // First frame with zero gameTime.
+    [self updateWithGameTime:gameTime];   
+    
+    if ([self beginDraw]) {
+        [self drawWithGameTime:gameTime];
+        [self endDraw];
+    }
+    
+    // Force redraw.
+    [self.window.gameViewController.gameView layoutSubviews];
     
     // Run the game host with a delay event, so we don't block this method.
     [gameHost performSelector:@selector(run) withObject:nil afterDelay:0];
 }
 
 - (void) tick {
+    if (!lastFrameTime) {
+        lastFrameTime = [[NSDate alloc] init];
+    }
+    
     // Sleep if inactive.
     if (!isActive) {
         CFRunLoopRunInMode(kCFRunLoopDefaultMode, inactiveSleepTime, NO);
@@ -195,7 +206,8 @@ static NSArray *drawOrderSort;
 
 - (void) applicationDidFinishLaunching:(UIApplication *)application {    
     NSLog(@"Application has started.");
-    [self performSelector:@selector(run) withObject:nil afterDelay:0];
+    
+    [self run];
 }
 
 - (void) applicationWillResignActive:(UIApplication *)application
@@ -235,7 +247,6 @@ static NSArray *drawOrderSort;
 	while ([componentsList count] > 0) {
 		id<IGameComponent> component = [componentsList objectAtIndex:0];
         [component initialize];
-		[initializedComponents addObject:component];
 		[componentsList removeObjectAtIndex:0];
 	}
     initializeDone = YES;
@@ -270,7 +281,7 @@ static NSArray *drawOrderSort;
 - (void) endDraw {
     [graphicsDeviceManager endDraw];
 }
-
+ 
 - (void) unloadContent {}
 
 - (void) endRun {}
@@ -310,10 +321,7 @@ static NSArray *drawOrderSort;
 - (void) componentAddedTo:(GameComponentCollection*)sender eventArgs:(GameComponentCollectionEventArgs*)e {
     // Initialize component if it's being added after main initialize has been called.
 	if (initializeDone) {
-		if (![initializedComponents containsObject:e.gameComponent]) {
-			[e.gameComponent initialize];
-			[initializedComponents addObject:e.gameComponent];
-		}
+        [e.gameComponent initialize];
     } else {
 		[componentsList addObject:e.gameComponent];
 	}
@@ -411,7 +419,6 @@ static NSArray *drawOrderSort;
 	[self unloadContent];
     [gameTime release];
     
-	[initializedComponents release];
 	[componentsList release];	
 	[enabledComponents release];
 	[visibleComponents release];

Classes/Retronator/Xni/Framework/GameComponent.h

@@ -26,4 +26,7 @@
 
 @property (nonatomic, readonly) Game *game;
 
+- (void) onEnabledChanged;
+- (void) onUpdateOrderChanged;
+
 @end

Classes/Retronator/Xni/Framework/GameComponent.m

@@ -32,7 +32,7 @@
 - (void) setEnabled:(BOOL)value {
     if (enabled != value) {
         enabled = value;
-        [enabledChanged raiseWithSender:self];
+        [self onEnabledChanged];
     }
 }
 
@@ -40,7 +40,7 @@
 - (void) setUpdateOrder:(int)value {
 	if (updateOrder != value) {
 		updateOrder = value;
-		[updateOrderChanged raiseWithSender:self];
+        [self onUpdateOrderChanged];
 	}
 }
 
@@ -49,6 +49,14 @@
 
 - (void) initialize {}
 
+- (void) onEnabledChanged {
+    [enabledChanged raiseWithSender:self];
+}
+
+- (void) onUpdateOrderChanged {
+    [updateOrderChanged raiseWithSender:self];
+}
+
 - (void) updateWithGameTime:(GameTime*)gameTime {}
 
 - (void) dealloc

Classes/Retronator/Xni/Framework/GameHost.m

@@ -18,7 +18,7 @@
     self = [super init];
     if (self) {
 		[MediaPlayer load];
-        window = [[GameWindow alloc] init]; 		
+        window = [[GameWindow alloc] init]; 	
     }
     return self;
 }

Classes/Retronator/Xni/Framework/Graphics/BasicEffect.m

@@ -13,6 +13,7 @@
 
 @interface BasicEffectPass : EffectPass {
     BasicEffect *basicEffect;	
+    ReachGraphicsDevice *reachGraphicsDevice;
 }
 
 - (id) initWithBasicEffect:(BasicEffect*)theBasicEffect graphicsDevice:(GraphicsDevice*)theGraphicsDevice;
@@ -124,6 +125,7 @@
     self = [super initWithName:@"BasicEffectPass" graphicsDevice:theGraphicsDevice];
     if (self) {
         basicEffect = theBasicEffect;
+        reachGraphicsDevice = (ReachGraphicsDevice*)theGraphicsDevice;
     }
     return self;
 }
@@ -153,7 +155,7 @@
     // Set texturing.
     if (basicEffect.textureEnabled) {
 		[graphicsDevice.textures setItem:basicEffect.texture atIndex:0];	
-		glActiveTexture(GL_TEXTURE0);
+		//glActiveTexture(GL_TEXTURE0);
         glEnable(GL_TEXTURE_2D);
     } else {
         glDisable(GL_TEXTURE_2D);
@@ -188,10 +190,9 @@
 }
 
 - (void) activateLight:(DirectionalLight *)light name:(uint)lightName {
-    if (light.enabled) {
-        glEnable(lightName);
-    } else {
-        glDisable(lightName);
+    [reachGraphicsDevice setLight:lightName to:light.enabled];
+    
+    if (!light.enabled) {
         return;
     }
     

Classes/Retronator/Xni/Framework/Graphics/GraphicsDevice.h

@@ -41,6 +41,7 @@
 	SamplerStateCollection *samplerStates;
 	TextureCollection *textures;
 	Viewport *viewport;
+    int activeTextureIndex;
 	
 	// Events
 	Event *deviceResetting;

Classes/Retronator/Xni/Framework/Graphics/GraphicsDevice.m

@@ -86,10 +86,12 @@
 		self.blendFactor = [Color white];
 		self.blendState = [BlendState opaque];
 		self.depthStencilState = [DepthStencilState defaultDepth];
+        glDepthRangef(0, 1);
 		graphicsDeviceStatus = GraphicsDeviceStatusNormal;
 		self.indices = nil;
 		self.rasterizerState = [RasterizerState cullCounterClockwise];
 		self.referenceStencil = 0;
+        activeTextureIndex = -1;
 		[samplerStates setItem:[SamplerState linearClamp] atIndex:0];
 		
 		// Create events.
@@ -108,30 +110,54 @@
 @synthesize blendState;
 - (void) setBlendState:(BlendState*)value {
 	if (value != blendState) {
-		[value retain];
-		[blendState release];
-		blendState = value;
+        BlendState *old = blendState;
+		blendState = [value retain];
 		
 		// Apply the blend state.
-		glBlendFunc(blendState.colorSourceBlend, blendState.colorDestinationBlend);
-		
+		if (old.colorSourceBlend != blendState.colorSourceBlend ||
+            old.colorDestinationBlend != blendState.colorDestinationBlend ||
+            old.alphaSourceBlend != blendState.alphaSourceBlend ||
+            old.alphaDestinationBlend != blendState.alphaDestinationBlend) {
+            
+            glBlendFuncSeparate(blendState.colorSourceBlend, 
+                                blendState.colorDestinationBlend, 
+                                blendState.alphaSourceBlend,
+                                blendState.alphaDestinationBlend);
+        }
+        
+        if (old.colorBlendFunction != blendState.colorBlendFunction ||
+            old.alphaBlendFunction != blendState.alphaBlendFunction) {
+            
+            glBlendEquationSeparate(blendState.colorBlendFunction,
+                                    blendState.alphaBlendFunction);
+        }
+        
+		[old release];
 	}
 }
 
 @synthesize depthStencilState;
 - (void) setDepthStencilState:(DepthStencilState*)value {
 	if (value != depthStencilState) {
-		[value retain];
-		[depthStencilState release];
-		depthStencilState = value;
+		DepthStencilState *old = depthStencilState;
+        depthStencilState = [value retain];
 		
 		// Apply depth state.
-		FLAG_BLOCK(depthStencilState.depthBufferEnable, GL_DEPTH_TEST)
-		glDepthFunc(depthStencilState.depthBufferFunction);
-		glDepthMask(depthStencilState.depthBufferWriteEnable);
-		glDepthRangef(0, 1);
-		
+        if (old.depthBufferEnable != depthStencilState.depthBufferEnable) {
+            FLAG_BLOCK(depthStencilState.depthBufferEnable, GL_DEPTH_TEST)
+        }
+        
+        if (old.depthBufferFunction != depthStencilState.depthBufferFunction) {
+            glDepthFunc(depthStencilState.depthBufferFunction);
+        }
+        
+        if (old.depthBufferWriteEnable != depthStencilState.depthBufferWriteEnable) {
+            glDepthMask(depthStencilState.depthBufferWriteEnable);
+        }
+        		
 		// TODO: Apply stencil state.
+        
+        [old release];
 	}
 }
 
@@ -337,7 +363,7 @@
 	[GraphicsDevice getFormat:&format AndType:&type ForSurfaceFormat:texture.format];
 	
     glBindTexture(GL_TEXTURE_2D, texture.textureId);	
-    
+        
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
@@ -348,7 +374,7 @@
 	} else {
 		glTexImage2D(GL_TEXTURE_2D, level, format, texture.width, texture.height, 0, format, type, data);
     }
-	
+    	
 	glBindTexture(GL_TEXTURE_2D, 0);
 }
 
@@ -452,7 +478,10 @@
 }
 
 - (void) applySamplerState:(id)sender eventArgs:(XniSamplerEventArgs*)e {
-	glActiveTexture(e.samplerIndex);
+	if (activeTextureIndex != e.samplerIndex) {
+        activeTextureIndex = e.samplerIndex;
+        glActiveTexture(GL_TEXTURE0 + e.samplerIndex);
+    }
 	
 	Texture *texture = [textures itemAtIndex:e.samplerIndex];
 	

Classes/Retronator/Xni/Framework/Graphics/GraphicsEnums.h

@@ -18,11 +18,11 @@ typedef enum {
 } Blend;
 
 typedef enum {
-	BlendFunctionAdd,
-	BlendFunctionMax,
-	BlendFunctionMin,
-	BlendFunctionReverseSubstract,
-	BlendFunctionSubtract
+	BlendFunctionAdd = GL_FUNC_ADD,
+	//BlendFunctionMax = GL_MAX,
+	//BlendFunctionMin = GL_MIN,
+	BlendFunctionReverseSubstract = GL_FUNC_REVERSE_SUBTRACT,
+	BlendFunctionSubtract = GL_FUNC_SUBTRACT
 } BlendFunction;
 
 typedef enum {

Classes/Retronator/Xni/Framework/Graphics/ReachGraphicsDevice.h

@@ -12,6 +12,9 @@
 
 
 @interface ReachGraphicsDevice : GraphicsDevice {
+    BOOL lightsActive[8];
 }
 
+- (void) setLight:(uint)lightname to:(BOOL)value;
+
 @end

Classes/Retronator/Xni/Framework/Graphics/ReachGraphicsDevice.m

@@ -38,6 +38,18 @@
 
 @implementation ReachGraphicsDevice
 
+- (id)initWithGame:(Game *)theGame {
+    self = [super initWithGame:theGame];
+    if (self) {
+        // Disable lights.
+        for (int i=0; i<8; i++) {
+            lightsActive[i] = false;
+            glDisable(GL_LIGHT0 + i);
+        }
+    }
+    return self;
+}
+
 - (EAGLContext*) createContext { 
 	return [[[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1] autorelease]; 
 }
@@ -59,7 +71,7 @@
 					  minVertexIndex:(int)minVertexIndex
 						 numVertices:(int)numVertices
 						  startIndex:(int)startIndex
-					  primitiveCount:(int)primitiveCount;
+					  primitiveCount:(int)primitiveCount
 {
 	[self enableVertexBuffers];
 	
@@ -176,6 +188,19 @@
 	
 }
 
+- (void)setLight:(uint)lightname to:(BOOL)value {
+    int index = lightname - GL_LIGHT0;
+    
+    if (value != lightsActive[index]) {
+        lightsActive[index] = value;
+        if (value) {
+            glEnable(lightname);
+        } else {
+            glDisable(lightname);
+        }
+    }
+}
+
 // Private methods
 
 - (void) enableVertexBuffers {

Classes/Retronator/Xni/Framework/Graphics/SpriteBatch.m

@@ -12,6 +12,8 @@
 
 #import "SpriteFont+Internal.h"
 
+#import "XniAdaptiveArray.h"
+
 typedef struct {
 	float x;
 	float y;
@@ -60,6 +62,8 @@ static inline void SpriteSetSource(XniSprite *sprite, Rectangle *source, Texture
 	} else {
 		sprite->source.width = 1;
 		sprite->source.height = 1;
+        sprite->source.x = 0;
+        sprite->source.y = 0;
 	}
 	
 	if (effects & SpriteEffectsFlipHorizontally) {
@@ -76,8 +80,12 @@ static inline void SpriteSetSource(XniSprite *sprite, Rectangle *source, Texture
 static inline void SpriteSetVertices(XniSprite *sprite, float positionX, float positionY, float originX, float originY, float scaleX, float scaleY, float rotation, float width, float height) {
 	float x = originX * scaleX;
 	float y = -originY * scaleY;
-	float c = cos(rotation);
-	float s = sin(rotation);
+	float c = 1;
+	float s = 0;
+	if (rotation) {
+        c = cosf(rotation);
+        s = sinf(rotation);
+    }
 	sprite->position.x = positionX - x * c - y * s;
 	sprite->position.y = positionY - x * s + y * c;
 	sprite->width.x = width * scaleX * c;
@@ -90,7 +98,9 @@ static inline void SpriteSetDestinationFast(XniSprite *sprite, Rectangle *destin
 	sprite->position.x = destination.x;
 	sprite->position.y = destination.y;
 	sprite->width.x = destination.width;
+    sprite->width.y = 0;
 	sprite->height.y = destination.height;
+    sprite->height.x = 0;
 }
 
 static inline void SpriteSetDestination(XniSprite *sprite, Rectangle *destination, float originX, float originY, float rotation) {
@@ -113,7 +123,7 @@ static inline void SpriteSetPosition(XniSprite *sprite, Vector2 *position, float
 
 - (void) setProjection;
 - (void) apply;
-- (void) draw:(XniSprite*)sprite;
+void draw(XniSprite *sprite, NSMutableArray *sprites, SpriteSortMode sortMode, SpriteBatch *it);
 - (void) draw;
 - (void) drawFrom:(int)startIndex to:(int)endIndex;
 
@@ -121,6 +131,30 @@ static inline void SpriteSetPosition(XniSprite *sprite, Vector2 *position, float
 
 @implementation SpriteBatch
 
+// Sprite pool
+static XniAdaptiveArray *spritePool;
+
+static inline XniSprite *SpriteFromPool() {
+    if (spritePool.count > 0) {
+        XniSprite *sprite = *(XniSprite**)[spritePool removeLastItem];
+        return sprite;
+    } else {
+        XniSprite *sprite = [[XniSprite alloc] init];
+        return sprite;
+    }
+}
+
+static inline void ReturnSpriteToPool(XniSprite *sprite) {
+    [spritePool addItem:&sprite];
+}
+
+static inline void ReturnSpritesToPool(NSArray *sprites) {
+    for (XniSprite *sprite in sprites) {
+        [spritePool addItem:&sprite];
+    }
+}
+
+
 // Recyclable vertices
 static VertexPositionColorTextureStruct vertices[4];
 
@@ -151,6 +185,8 @@ static VertexPositionColorTextureStruct vertices[4];
 	textureSort = [[NSArray arrayWithObject:textureSortDescriptor] retain];
 	frontToBackSort = [[NSArray arrayWithObject:depthAscendingSortDescriptor] retain];
 	backToFrontSort = [[NSArray arrayWithObject:depthDescendingSortDescriptor] retain];
+    
+    spritePool = [[XniAdaptiveArray alloc] initWithItemSize:sizeof(XniSprite*) initialCapacity:64];
 }
 
 - (void) setProjection {
@@ -185,7 +221,14 @@ static VertexPositionColorTextureStruct vertices[4];
 		 DepthStencilState:(DepthStencilState*)theDepthStencilState 
 		   RasterizerState:(RasterizerState*)theRasterizerState 
 					Effect:(Effect*)theEffect {
-	[self beginWithSortMode:theSortMode BlendState:theBlendState SamplerState:theSamplerState DepthStencilState:theDepthStencilState RasterizerState:theRasterizerState Effect:theEffect TransformMatrix:nil];
+    
+    // Make sure not to overwrite the world transform in basic effect.
+    Matrix *transform = nil;
+    if ([theEffect isKindOfClass:[BasicEffect class]]) {
+		transform = ((BasicEffect*)theEffect).world;
+	}
+    
+	[self beginWithSortMode:theSortMode BlendState:theBlendState SamplerState:theSamplerState DepthStencilState:theDepthStencilState RasterizerState:theRasterizerState Effect:theEffect TransformMatrix:transform];
 }
 
 - (void) beginWithSortMode:(SpriteSortMode)theSortMode 
@@ -223,72 +266,72 @@ static VertexPositionColorTextureStruct vertices[4];
 }
 
 - (void) draw:(Texture2D*)texture toRectangle:(Rectangle*)destinationRectangle tintWithColor:(Color*)color {
-	XniSprite *sprite = [[[XniSprite alloc] init] autorelease];
+	XniSprite *sprite = SpriteFromPool();
 	sprite->texture = texture;
 	SpriteSetDestinationFast(sprite, destinationRectangle);
 	SpriteSetSource(sprite, nil, texture, SpriteEffectsNone);
 	sprite->color = color.packedValue;
-	[self draw:sprite];
+    draw(sprite, sprites, sortMode, self);
 }
 
 - (void) draw:(Texture2D*)texture toRectangle:(Rectangle*)destinationRectangle fromRectangle:(Rectangle*)sourceRectangle tintWithColor:(Color*)color {
-	XniSprite *sprite = [[[XniSprite alloc] init] autorelease];
+	XniSprite *sprite = SpriteFromPool();
 	sprite->texture = texture;
 	SpriteSetDestinationFast(sprite, destinationRectangle);
 	SpriteSetSource(sprite, sourceRectangle, texture, SpriteEffectsNone);
 	sprite->color = color.packedValue;
-	[self draw:sprite];	
+    draw(sprite, sprites, sortMode, self);
 }
 
 - (void) draw:(Texture2D*)texture toRectangle:(Rectangle*)destinationRectangle fromRectangle:(Rectangle*)sourceRectangle tintWithColor:(Color*)color
 	 rotation:(float)rotation origin:(Vector2*)origin effects:(SpriteEffects)effects layerDepth:(float)layerDepth {
-	XniSprite *sprite = [[[XniSprite alloc] init] autorelease];
+	XniSprite *sprite = SpriteFromPool();
 	sprite->texture = texture;
 	SpriteSetDestination(sprite, destinationRectangle, origin.x, origin.y, rotation);
 	SpriteSetSource(sprite, sourceRectangle, texture, effects);
 	sprite->color = color.packedValue;
 	sprite->layerDepth = layerDepth;
-	[self draw:sprite];		
+    draw(sprite, sprites, sortMode, self);
 }
 
 - (void) draw:(Texture2D*)texture to:(Vector2*)position tintWithColor:(Color*)color {
-	XniSprite *sprite = [[[XniSprite alloc] init] autorelease];
+	XniSprite *sprite = SpriteFromPool();
 	sprite->texture = texture;
 	SpriteSetPositionFast(sprite, position, texture.width, texture.height);
 	SpriteSetSource(sprite, nil, texture, SpriteEffectsNone);
 	sprite->color = color.packedValue;
-	[self draw:sprite];	
+    draw(sprite, sprites, sortMode, self);
 }
 
 - (void) draw:(Texture2D*)texture to:(Vector2*)position fromRectangle:(Rectangle*)sourceRectangle tintWithColor:(Color*)color {
-	XniSprite *sprite = [[[XniSprite alloc] init] autorelease];
+	XniSprite *sprite = SpriteFromPool();
 	sprite->texture = texture;
 	SpriteSetPositionFast(sprite, position, sourceRectangle ? sourceRectangle.width : texture.width, sourceRectangle ? sourceRectangle.height : texture.height);
 	SpriteSetSource(sprite, sourceRectangle, texture, SpriteEffectsNone);
 	sprite->color = color.packedValue;
-	[self draw:sprite];	
+    draw(sprite, sprites, sortMode, self);
 }
 
 - (void) draw:(Texture2D*)texture to:(Vector2*)position fromRectangle:(Rectangle*)sourceRectangle tintWithColor:(Color*)color
 	 rotation:(float)rotation origin:(Vector2*)origin scaleUniform:(float)scale effects:(SpriteEffects)effects layerDepth:(float)layerDepth {
-	XniSprite *sprite = [[[XniSprite alloc] init] autorelease];
+	XniSprite *sprite = SpriteFromPool();
 	sprite->texture = texture;
 	SpriteSetPosition(sprite, position, origin.x, origin.y, scale, scale, rotation, sourceRectangle ? sourceRectangle.width : texture.width, sourceRectangle ? sourceRectangle.height : texture.height);
 	SpriteSetSource(sprite, sourceRectangle, texture, effects);
 	sprite->color = color.packedValue;
 	sprite->layerDepth = layerDepth;
-	[self draw:sprite];			
+    draw(sprite, sprites, sortMode, self);
 }
 
 - (void) draw:(Texture2D*)texture to:(Vector2*)position fromRectangle:(Rectangle*)sourceRectangle tintWithColor:(Color*)color
 	 rotation:(float)rotation origin:(Vector2*)origin scale:(Vector2*)scale effects:(SpriteEffects)effects layerDepth:(float)layerDepth {
-	XniSprite *sprite = [[[XniSprite alloc] init] autorelease];
+	XniSprite *sprite = SpriteFromPool();
 	sprite->texture = texture;
 	SpriteSetPosition(sprite, position, origin.x, origin.y, scale.x, scale.y, rotation, sourceRectangle ? sourceRectangle.width : texture.width, sourceRectangle ? sourceRectangle.height : texture.height);
 	SpriteSetSource(sprite, sourceRectangle, texture, effects);
 	sprite->color = color.packedValue;
 	sprite->layerDepth = layerDepth;
-	[self draw:sprite];		
+    draw(sprite, sprites, sortMode, self);
 }
 
 - (void) drawStringWithSpriteFont:(SpriteFont*)spriteFont text:(NSString*)text to:(Vector2*)position tintWithColor:(Color*)color {
@@ -326,11 +369,12 @@ static VertexPositionColorTextureStruct vertices[4];
 	}
 }
 
-- (void) draw:(XniSprite *)sprite {
+void draw(XniSprite *sprite, NSMutableArray *sprites, SpriteSortMode sortMode, SpriteBatch *it) {
 	[sprites addObject:sprite];
 	
 	if (sortMode == SpriteSortModeImmediate) {
-		[self draw];
+		[it draw];
+        ReturnSpritesToPool(sprites);
 		[sprites removeAllObjects];
 	}
 }
@@ -365,6 +409,7 @@ static VertexPositionColorTextureStruct vertices[4];
 	[self draw];
 	
 	// Clean up.
+    ReturnSpritesToPool(sprites);
 	[sprites removeAllObjects];
 	beginCalled = NO;
 }
@@ -430,7 +475,7 @@ static VertexPositionColorTextureStruct vertices[4];
 		vertices[3].position.x = vertices[0].position.x + sprite->height.x + sprite->width.x;
 		vertices[3].position.y = vertices[0].position.y + sprite->height.y + sprite->width.y;
 		vertices[3].position.z = sprite->layerDepth;
-	
+        
 		vertices[0].texture.x = sprite->source.x;
 		vertices[1].texture.x = sprite->source.x;
 		vertices[2].texture.x = sprite->source.x + sprite->source.width;

Classes/Retronator/Xni/Framework/Graphics/VertexArray.h

@@ -17,6 +17,7 @@
 }
 
 - (id) initWithItemSize:(int)itemSize initialCapacity:(int)initialCapacity;
+- (id) initWithArray:(VertexArray*)source;
 
 @property (nonatomic, readonly) void *array;
 @property (nonatomic, readonly) int count;

Classes/Retronator/Xni/Framework/Graphics/VertexArray.m

@@ -19,6 +19,13 @@
     return self;
 }
 
+- (id)initWithArray:(VertexArray *)source {
+    if (self = [super init]) {
+        array = [[XniAdaptiveArray alloc] initWithArray:source->array];
+    }
+    return self;
+}
+
 - (void *) array {
     return array.array;
 }

Classes/Retronator/Xni/Framework/Graphics/Viewport.m

@@ -57,11 +57,21 @@
 	float projectionY = -((source.y - y) * 2 / height) + 1;
 	float projectionZ = (source.z - minDepth) / (maxDepth - minDepth);
 	
-	Vector4 *objectSpace = [Vector4 vectorWithX:projectionX y:projectionY z:projectionZ w:1];
-	[objectSpace transformWith:[Matrix invert:projection]];
-	[objectSpace transformWith:[Matrix invert:view]];
-	[objectSpace transformWith:[Matrix invert:world]];
-	[objectSpace multiplyBy:1/objectSpace.w];
+	Vector4Struct objectSpace = Vector4Make(projectionX,projectionY,projectionZ,1);
+    
+    MatrixStruct m = *projection.data;
+    MatrixInvert(&m);
+    Vector4Transform(&objectSpace, &m, &objectSpace);
+
+    m = *view.data;
+    MatrixInvert(&m);
+    Vector4Transform(&objectSpace, &m, &objectSpace);
+    
+    m = *world.data;
+    MatrixInvert(&m);
+    Vector4Transform(&objectSpace, &m, &objectSpace);
+	
+    Vector4Multiply(&objectSpace, 1/objectSpace.w, &objectSpace);
 	
 	return [Vector3 vectorWithX:objectSpace.x y:objectSpace.y z:objectSpace.z];
 }

Classes/Retronator/Xni/Framework/Input/Touch/TouchPanel.h

@@ -27,6 +27,7 @@
 	NSMutableSet *releaseTouches;
 	NSMutableSet *lateReleaseTouches;
 	NSMutableDictionary *touchLocations;
+	NSMutableDictionary *uiTouchesForLocations;
 }
 
 @property (nonatomic) int displayWidth;

Classes/Retronator/Xni/Framework/Input/Touch/TouchPanel.m

@@ -15,16 +15,16 @@
 #import "GameView.h"
 
 @interface XniTouchLocation : NSObject {
+@public
 	int identifier;
 	Vector2 *position;
 	Vector2 *previousPosition;
 	TouchLocationState state;
+    int age;
 }
 
 - (id) initWithPosition:(Vector2*)thePosition;
 
-@property (nonatomic) TouchLocationState state;
-
 - (void) update;
 - (void) moveToPosition:(Vector2*)newPosition;
 
@@ -48,10 +48,9 @@ static int nextID = 0;
 	return self;
 }
 
-@synthesize state;
-
 - (void) update {
 	[self moveToPosition:position];
+    age++;
 }
 
 - (void) moveToPosition:(Vector2*)newPosition {
@@ -93,6 +92,7 @@ static TouchPanel *instance;
 		lateReleaseTouches = [[NSMutableSet alloc] init];
 		
 		touchLocations = (NSMutableDictionary*)CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+		uiTouchesForLocations = (NSMutableDictionary*)CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
 	}
 	return self;
 }
@@ -134,7 +134,11 @@ static TouchPanel *instance;
 		
 		// After get state is done, all pressed touches should be moved.
 		[touch update];
-	}
+        if (touch->age > 200) {
+            UITouch *key = [uiTouchesForLocations objectForKey:touch];
+            [removeTouches addObject:key];
+        }
+    }
 	return collection;
 }
 
@@ -152,7 +156,8 @@ static TouchPanel *instance;
 	float scale = view.scale;
 	for (UITouch *touch in touches) {
 		XniTouchLocation *location = [touchLocations objectForKey:touch];	
-		if (location) {			
+		if (location) {
+            location->age = 0;
 			CGPoint position = [touch locationInView:view];
 			[location moveToPosition:[Vector2 vectorWithX:position.x * scale y:position.y * scale]];
 		}
@@ -179,14 +184,21 @@ static TouchPanel *instance;
 - (void) update {
 	// Remove all previously released touches.
 	for (UITouch *touch in removeTouches) {
+        XniTouchLocation *location = [[touchLocations objectForKey:touch] retain];
 		[touchLocations removeObjectForKey:touch];
+        if (location) {
+            [uiTouchesForLocations removeObjectForKey:location];
+            [location release];
+        }
 	}
 	[removeTouches removeAllObjects];
-	
+    	
 	// Set released touches.
 	for (UITouch *touch in releaseTouches) {
 		XniTouchLocation *location = [touchLocations objectForKey:touch];
-		location.state = TouchLocationStateReleased;
+        if (location) {
+            location->state = TouchLocationStateReleased;
+        }
 	}
 	
 	// Shift the pools.
@@ -203,6 +215,7 @@ static TouchPanel *instance;
 											initWithPosition:[Vector2 vectorWithX:position.x * scale y:position.y * scale]] autorelease];
 		
 		CFDictionaryAddValue((CFMutableDictionaryRef)touchLocations, touch, location);
+		CFDictionaryAddValue((CFMutableDictionaryRef)uiTouchesForLocations, location, touch);
 	}
 	[addTouches removeAllObjects];
 	
@@ -215,6 +228,7 @@ static TouchPanel *instance;
 	[releaseTouches release];
 	[lateReleaseTouches release];
 	[touchLocations release];
+    [uiTouchesForLocations release];
 	[super dealloc];
 }
 

Classes/Retronator/Xni/Framework/MatrixStruct.h

@@ -258,4 +258,24 @@ static inline void MatrixDivide(MatrixStruct *value1, MatrixStruct *value2, Matr
 	result->m42 = value1->m42 / value2->m42;
 	result->m43 = value1->m43 / value2->m43;
 	result->m44 = value1->m44 / value2->m44;
+}
+
+static inline void MatrixLerp(MatrixStruct *value1, MatrixStruct *value2, float amount, MatrixStruct *result) {
+    float first = 1 - amount;
+    result->m11 = value1->m11 * first + value2->m11 * amount;
+    result->m12 = value1->m12 * first + value2->m12 * amount;
+    result->m13 = value1->m13 * first + value2->m13 * amount;
+    result->m14 = value1->m14 * first + value2->m14 * amount;
+    result->m21 = value1->m21 * first + value2->m21 * amount;
+    result->m22 = value1->m22 * first + value2->m22 * amount;
+    result->m23 = value1->m23 * first + value2->m23 * amount;
+    result->m24 = value1->m24 * first + value2->m24 * amount;
+    result->m31 = value1->m31 * first + value2->m31 * amount;
+    result->m32 = value1->m32 * first + value2->m32 * amount;
+    result->m33 = value1->m33 * first + value2->m33 * amount;
+    result->m34 = value1->m34 * first + value2->m34 * amount;
+    result->m41 = value1->m41 * first + value2->m41 * amount;
+    result->m42 = value1->m42 * first + value2->m42 * amount;
+    result->m43 = value1->m43 * first + value2->m43 * amount;
+    result->m44 = value1->m44 * first + value2->m44 * amount;
 }

Classes/Retronator/Xni/Framework/Media/MediaPlayer.m

@@ -91,7 +91,7 @@ static MediaPlayer *instance;
 @synthesize volume;
 
 - (void) setVolume:(float)value {
-	volume = value;
+	volume = MAX(0, MIN(1, value));
 	
 	if (!isMuted) {
 		queue.activeSong.audioPlayer.volume = volume;
@@ -160,8 +160,14 @@ static MediaPlayer *instance;
 	if (![self checkAvailability]) {
 		return;
 	}
+    
+    if (queue.activeSong) {
+        [queue.activeSong.audioPlayer stop];
+	}
 	
+    song.audioPlayer.currentTime = 0;
 	song.audioPlayer.delegate = self;
+    
 	[queue setSong:song];
 	[self fillSongIndices];
 	[self moveNext];
@@ -221,9 +227,10 @@ static MediaPlayer *instance;
 - (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag {
 	if ([remainingSongIndices count] == 0 && !isRepeating) {
 		// The music stops, activate the ambient category again.
-		[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryAmbient error:nil];
+        [[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryAmbient error:nil];
 		soloModeActivated = NO;
-		return;
+        [self setMediaState:MediaStateStopped];
+ 		return;
 	}
 	
 	[self moveNext];

Classes/Retronator/Xni/Framework/PointStruct.h

@@ -13,4 +13,12 @@ static inline PointStruct PointMake(int x, int y) {
 static inline void PointSet(PointStruct *point, int x, int y) {
 	point->x = x;
 	point->y = y;
-}
+}
+
+static inline void PointAdd(PointStruct *value1, PointStruct *value2, PointStruct *result) {
+    PointSet(result, value1->x + value2->x, value1->y + value2->y);
+}
+
+static inline void PointSubtract(PointStruct *value1, PointStruct *value2, PointStruct *result) {
+    PointSet(result, value1->x - value2->x, value1->y - value2->y);
+}

Classes/Retronator/Xni/Framework/XniPoint.h

@@ -28,8 +28,14 @@
 @property (nonatomic) int y;
 @property (nonatomic, readonly) PointStruct *data;
 
++ (XniPoint*) add:(XniPoint*)value1 to:(XniPoint*)value2;
++ (XniPoint*) subtract:(XniPoint*)value1 by:(XniPoint*)value2;
+
 - (XniPoint*) set:(XniPoint*)value;
 
+- (XniPoint*) add:(XniPoint*)value;
+- (XniPoint*) subtract:(XniPoint*)value;
+
 - (BOOL) equals:(XniPoint*)point;
 
 + (XniPoint*) zero;

Classes/Retronator/Xni/Framework/XniPoint.m

@@ -59,11 +59,33 @@
 
 // METHODS
 
++ (XniPoint *)add:(XniPoint *)value1 to:(XniPoint *)value2 {
+    PointStruct resultData;
+    PointAdd(value1.data, value2.data, &resultData);
+    return [XniPoint pointWithStruct:&resultData];
+}
+
++ (XniPoint *)subtract:(XniPoint *)value1 by:(XniPoint *)value2 {
+    PointStruct resultData;
+    PointSubtract(value1.data, value2.data, &resultData);
+    return [XniPoint pointWithStruct:&resultData];
+}
+
 - (XniPoint*) set:(XniPoint*)value {
 	data = *value.data;
 	return self;
 }
 
+- (XniPoint *)add:(XniPoint *)value {
+    PointAdd(&data, value.data, &data);
+    return self;
+}
+
+- (XniPoint *)subtract:(XniPoint *)value {
+    PointSubtract(&data, value.data, &data);
+    return self;
+}
+
 - (id) copyWithZone:(NSZone *)zone {
 	return [[XniPoint allocWithZone:zone] initWithPointStruct:&data];
 }

Classes/System/XniAdaptiveArray.h

@@ -17,6 +17,7 @@
 }
 
 - (id) initWithItemSize:(int)theItemSize initialCapacity:(int)theCapacity;
+- (id) initWithArray:(XniAdaptiveArray*)source;
 
 @property (nonatomic, readonly) int itemSize;
 @property (nonatomic, readonly) void *array;
@@ -24,5 +25,6 @@
 
 - (void) addItem:(void*)item;
 - (void) clear;
+- (void*) removeLastItem;
 
 @end

Classes/System/XniAdaptiveArray.m

@@ -19,6 +19,17 @@
     return self;
 }
 
+- (id) initWithArray:(XniAdaptiveArray*)source {
+    if (self = [super init]) {
+        itemSize = source.itemSize;
+        capacity = source.count;
+        count = source.count;
+        array = malloc(capacity * itemSize);
+        memcpy(array, source.array, capacity * itemSize);
+    }
+    return self;    
+}
+
 @synthesize itemSize;
 @synthesize array;
 @synthesize count;
@@ -40,6 +51,11 @@
     count = 0;
 }
 
+- (void*)removeLastItem {
+    count--;
+    return array + count * itemSize;
+}
+
 - (void) dealloc
 {
     free(array);

XNI.xcodeproj/project.pbxproj

@@ -2664,7 +2664,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				COPY_PHASE_STRIP = NO;
 				DSTROOT = /tmp/XNI.dst;
 				GCC_DYNAMIC_NO_PIC = NO;
@@ -2684,7 +2683,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				DSTROOT = /tmp/XNI.dst;
 				GCC_MODEL_TUNING = G5;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
@@ -2700,7 +2698,10 @@
 		1DEB922308733DC00010E9CD /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
+				ARCHS = (
+					armv7,
+					armv6,
+				);
 				GCC_C_LANGUAGE_STANDARD = c99;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = "";
@@ -2716,7 +2717,10 @@
 		1DEB922408733DC00010E9CD /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
+				ARCHS = (
+					armv7,
+					armv6,
+				);
 				GCC_C_LANGUAGE_STANDARD = c99;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
@@ -2731,7 +2735,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				COPY_PHASE_STRIP = NO;
 				DSTROOT = /tmp/XNI.dst;
 				GCC_DYNAMIC_NO_PIC = NO;
@@ -2751,7 +2754,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				DSTROOT = /tmp/XNI.dst;
 				GCC_MODEL_TUNING = G5;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;