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Dömötör Gulyás
2010-08-10 13:23:54
Revision ID: dognotdog@gmail.com-20100810112354-tculp6ef6iscoybl
introduces sharegroup and shared context for all GLESView instances

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source/GLESView.m
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- (BOOL) createFramebuffer;
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@end
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static EAGLContext* _sharedContext = nil;
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@implementation GLESView
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}
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+ (EAGLSharegroup*) glSharegroup
 
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{
 
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        assert([NSThread isMainThread]);
 
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        if (!_sharedContext)
 
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        {
 
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                _sharedContext = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2];
 
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                if (!_sharedContext)
 
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                        _sharedContext = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES1];
 
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        }
 
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        return [_sharedContext sharegroup];
 
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}
 
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- (void) loadTextureFromPDFNamed: (NSString*) name texName: (GLuint*) texname width: (size_t) width height: (size_t) height repeat: (BOOL) doRepeat mipmap: (BOOL) doMipmap filter: (BOOL) doFilter
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{
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        eaglLayer.opaque = YES;
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        eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:NO], kEAGLDrawablePropertyRetainedBacking, kEAGLColorFormatRGBA8, kEAGLDrawablePropertyColorFormat, nil];
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        context = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2];
 
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        context = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES2 sharegroup: [GLESView glSharegroup]];
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        if (!context)
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                context = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES1];
 
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                context = [[EAGLContext alloc] initWithAPI: kEAGLRenderingAPIOpenGLES1 sharegroup: [GLESView glSharegroup]];
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        if (!context || ![EAGLContext setCurrentContext: context])
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        {
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        [runLoop run];
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        [EAGLContext setCurrentContext: nil];
 
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        [pool drain];
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}
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    glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &backingWidth);
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    glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &backingHeight);
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    if (USE_DEPTH_BUFFER) {
 
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    if (USE_DEPTH_BUFFER)
 
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        {
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        glGenRenderbuffers(1, &depthRenderbuffer);
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        glBindRenderbuffer(GL_RENDERBUFFER, depthRenderbuffer);
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        glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, backingWidth, backingHeight);
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}
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- (void)destroyFramebuffer {
 
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- (void) destroyFramebuffer
 
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{
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    glDeleteFramebuffers(1, &viewFramebuffer);
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    viewFramebuffer = 0;

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