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Fixed spacing
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@slouken
slouken committed Feb 1, 2011
1 parent 5472b7e commit 5eeba0e
Showing 1 changed file with 96 additions and 100 deletions.
196 changes: 96 additions & 100 deletions src/video/uikit/SDL_uikitopenglview.m
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Expand Up @@ -37,128 +37,124 @@ @implementation SDL_uikitopenglview
@synthesize context;

+ (Class)layerClass {
return [CAEAGLLayer class];
return [CAEAGLLayer class];
}

- (id)initWithFrame:(CGRect)frame \
retainBacking:(BOOL)retained \
rBits:(int)rBits \
gBits:(int)gBits \
bBits:(int)bBits \
aBits:(int)aBits \
depthBits:(int)depthBits \
retainBacking:(BOOL)retained \
rBits:(int)rBits \
gBits:(int)gBits \
bBits:(int)bBits \
aBits:(int)aBits \
depthBits:(int)depthBits \
{

NSString *colorFormat=nil;
GLuint depthBufferFormat;
BOOL useDepthBuffer;

if (rBits == 8 && gBits == 8 && bBits == 8) {
/* if user specifically requests rbg888 or some color format higher than 16bpp */
colorFormat = kEAGLColorFormatRGBA8;
}
else {
/* default case (faster) */
colorFormat = kEAGLColorFormatRGB565;
}

if (depthBits == 24) {
useDepthBuffer = YES;
depthBufferFormat = GL_DEPTH_COMPONENT24_OES;
}
else if (depthBits == 0) {
useDepthBuffer = NO;
}
else {
/* default case when depth buffer is not disabled */
/*
strange, even when we use this, we seem to get a 24 bit depth buffer on iPhone.
perhaps that's the only depth format iPhone actually supports
*/
useDepthBuffer = YES;
depthBufferFormat = GL_DEPTH_COMPONENT16_OES;
}

if ((self = [super initWithFrame:frame])) {
// Get the layer
CAEAGLLayer *eaglLayer = (CAEAGLLayer *)self.layer;

eaglLayer.opaque = YES;
eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool: retained], kEAGLDrawablePropertyRetainedBacking, colorFormat, kEAGLDrawablePropertyColorFormat, nil];

context = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES1];

if (!context || ![EAGLContext setCurrentContext:context]) {
[self release];
return nil;
}

/* create the buffers */
glGenFramebuffersOES(1, &viewFramebuffer);
glGenRenderbuffersOES(1, &viewRenderbuffer);

glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
[context renderbufferStorage:GL_RENDERBUFFER_OES fromDrawable:(CAEAGLLayer*)self.layer];
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, viewRenderbuffer);

glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &backingWidth);
glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &backingHeight);

if (useDepthBuffer) {
glGenRenderbuffersOES(1, &depthRenderbuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, depthRenderbuffer);
glRenderbufferStorageOES(GL_RENDERBUFFER_OES, depthBufferFormat, backingWidth, backingHeight);
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, depthRenderbuffer);
}

if(glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES) != GL_FRAMEBUFFER_COMPLETE_OES) {
return NO;
}
/* end create buffers */
}
return self;
NSString *colorFormat=nil;
GLuint depthBufferFormat;
BOOL useDepthBuffer;

if (rBits == 8 && gBits == 8 && bBits == 8) {
/* if user specifically requests rbg888 or some color format higher than 16bpp */
colorFormat = kEAGLColorFormatRGBA8;
}
else {
/* default case (faster) */
colorFormat = kEAGLColorFormatRGB565;
}

if (depthBits == 24) {
useDepthBuffer = YES;
depthBufferFormat = GL_DEPTH_COMPONENT24_OES;
}
else if (depthBits == 0) {
useDepthBuffer = NO;
}
else {
/* default case when depth buffer is not disabled */
/*
strange, even when we use this, we seem to get a 24 bit depth buffer on iPhone.
perhaps that's the only depth format iPhone actually supports
*/
useDepthBuffer = YES;
depthBufferFormat = GL_DEPTH_COMPONENT16_OES;
}

if ((self = [super initWithFrame:frame])) {
// Get the layer
CAEAGLLayer *eaglLayer = (CAEAGLLayer *)self.layer;

eaglLayer.opaque = YES;
eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool: retained], kEAGLDrawablePropertyRetainedBacking, colorFormat, kEAGLDrawablePropertyColorFormat, nil];

context = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES1];

if (!context || ![EAGLContext setCurrentContext:context]) {
[self release];
return nil;
}

/* create the buffers */
glGenFramebuffersOES(1, &viewFramebuffer);
glGenRenderbuffersOES(1, &viewRenderbuffer);

glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
[context renderbufferStorage:GL_RENDERBUFFER_OES fromDrawable:(CAEAGLLayer*)self.layer];
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, viewRenderbuffer);

glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_WIDTH_OES, &backingWidth);
glGetRenderbufferParameterivOES(GL_RENDERBUFFER_OES, GL_RENDERBUFFER_HEIGHT_OES, &backingHeight);

if (useDepthBuffer) {
glGenRenderbuffersOES(1, &depthRenderbuffer);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, depthRenderbuffer);
glRenderbufferStorageOES(GL_RENDERBUFFER_OES, depthBufferFormat, backingWidth, backingHeight);
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, depthRenderbuffer);
}

if(glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES) != GL_FRAMEBUFFER_COMPLETE_OES) {
return NO;
}
/* end create buffers */
}
return self;
}

- (void)setCurrentContext {
[EAGLContext setCurrentContext:context];
[EAGLContext setCurrentContext:context];
}


- (void)swapBuffers {
glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
[context presentRenderbuffer:GL_RENDERBUFFER_OES];
glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer);
[context presentRenderbuffer:GL_RENDERBUFFER_OES];
}


- (void)layoutSubviews {
[EAGLContext setCurrentContext:context];
[EAGLContext setCurrentContext:context];
}

- (void)destroyFramebuffer {

glDeleteFramebuffersOES(1, &viewFramebuffer);
viewFramebuffer = 0;
glDeleteRenderbuffersOES(1, &viewRenderbuffer);
viewRenderbuffer = 0;

if (depthRenderbuffer) {
glDeleteRenderbuffersOES(1, &depthRenderbuffer);
depthRenderbuffer = 0;
}
glDeleteFramebuffersOES(1, &viewFramebuffer);
viewFramebuffer = 0;
glDeleteRenderbuffersOES(1, &viewRenderbuffer);
viewRenderbuffer = 0;

if (depthRenderbuffer) {
glDeleteRenderbuffersOES(1, &depthRenderbuffer);
depthRenderbuffer = 0;
}
}


- (void)dealloc {

[self destroyFramebuffer];
if ([EAGLContext currentContext] == context) {
[EAGLContext setCurrentContext:nil];
}
[context release];
[super dealloc];

[self destroyFramebuffer];
if ([EAGLContext currentContext] == context) {
[EAGLContext setCurrentContext:nil];
}
[context release];
[super dealloc];
}

@end

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