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/**
* @file context.m OpenGLES Context for iOS
*
* Copyright (C) 2010 Creytiv.com
*/
#include <re.h>
#include <baresip.h>
#include <UIKit/UIKit.h>
#include <QuartzCore/CAEAGLLayer.h>
#include <OpenGLES/ES1/gl.h>
#include <OpenGLES/ES1/glext.h>
#include "opengles.h"
@interface GlView : UIView
{
struct vidisp_st *st;
}
@end
static EAGLContext *ctx = NULL;
@implementation GlView
+ (Class)layerClass
{
return [CAEAGLLayer class];
}
- (id)initWithFrame:(CGRect)frame vidisp:(struct vidisp_st *)vst
{
self = [super initWithFrame:frame];
if (!self)
return nil;
self.layer.opaque = YES;
st = vst;
return self;
}
- (void) render_sel:(id)unused
{
(void)unused;
if (!ctx) {
UIWindow* window = [UIApplication sharedApplication].keyWindow;
ctx = [EAGLContext alloc];
[ctx initWithAPI:kEAGLRenderingAPIOpenGLES1];
[EAGLContext setCurrentContext:ctx];
[window addSubview:self];
[window bringSubviewToFront:self];
[window makeKeyAndVisible];
}
if (!st->framebuffer) {
opengles_addbuffers(st);
[ctx renderbufferStorage:GL_RENDERBUFFER_OES
fromDrawable:(CAEAGLLayer*)self.layer];
}
opengles_render(st);
[ctx presentRenderbuffer:GL_RENDERBUFFER_OES];
}
- (void) dealloc
{
[ctx release];
[super dealloc];
}
@end
void context_destroy(struct vidisp_st *st)
{
[(UIView *)st->view release];
}
int context_init(struct vidisp_st *st)
{
UIWindow* window = [UIApplication sharedApplication].keyWindow;
st->view = [[GlView new] initWithFrame:window.bounds vidisp:st];
return 0;
}
void context_render(struct vidisp_st *st)
{
UIView *view = st->view;
[view performSelectorOnMainThread:@selector(render_sel:)
withObject:nil
waitUntilDone:YES];
}
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