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FreeJ/xcode/CVInternalLayer.mm

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/* FreeJ
* (c) Copyright 2009 Andrea Guzzo <xant@dyne.org>
*
* This source code is free software; you can redistribute it and/or
* modify it under the terms of the GNU Public License as published
* by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* This source code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* Please refer to the GNU Public License for more details.
*
* You should have received a copy of the GNU Public License along with
* this source code; if not, write to:
* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#import <CVInternalLayer.h>
@implementation CVInternalLayerView : CVLayerController
- (void)feedFrame:(void *)frame
{
CVPixelBufferRef newPixelBuffer;
//Context *ctx = (Context *)[freej getContext];
[lock lock];
CVReturn err = CVPixelBufferCreateWithBytes (
NULL,
layer->geo.w,
layer->geo.h,
k32ARGBPixelFormat,
frame,
layer->geo.w*4,
NULL,
NULL,
NULL,
&newPixelBuffer
);
if (err == kCVReturnSuccess) {
if (currentFrame)
CVPixelBufferRelease(currentFrame);
currentFrame = newPixelBuffer;
newFrame = YES;
}
[lock unlock];
[self renderPreview];
}
@end
CVInternalLayer::CVInternalLayer(CVInternalLayerView *view, Layer *lay) : CVLayer(view)
{
layer = lay;
}
CVInternalLayer::~CVInternalLayer()
{
}
void CVInternalLayer::attach(Layer *lay)
{
lock();
layer = lay;
unlock();
}
bool CVInternalLayer::init(Context *ctx) {
freej = ctx;
width = layer->geo.w;
height = layer->geo.h;
return true;
}
bool CVInternalLayer::init(Context *ctx, int w, int h)
{
return false;
}
void *
CVInternalLayer::feed()
{
layer->lock();
buffer = layer->buffer;
layer->unlock();
if (buffer)
[(CVInternalLayerView *)input feedFrame:buffer];
return buffer;
}