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87 lines
3.0 KiB
Plaintext
87 lines
3.0 KiB
Plaintext
/* FreeJ
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* (c) Copyright 2009 Andrea Guzzo <xant@dyne.org>
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*
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* This source code is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Public License as published
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* by the Free Software Foundation; either version 3 of the License,
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* or (at your option) any later version.
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*
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* This source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* Please refer to the GNU Public License for more details.
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*
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* You should have received a copy of the GNU Public License along with
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* this source code; if not, write to:
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* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#import <CVTextLayerController.h>
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@implementation CVTextLayerController
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- (id)init
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{
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theString = [GLString alloc];
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text = nil;
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// init fonts for use with strings
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return [super init];
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}
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- (CVPixelBufferRef)currentFrame
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{
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NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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Context *ctx = [freej getContext];
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[lock lock];
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if (needsNewFrame) {
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CVPixelBufferRef textFrame;
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NSDictionary *d = [NSDictionary dictionaryWithObjectsAndKeys:
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[NSNumber numberWithInt:ctx->screen->geo.w], kCVPixelBufferWidthKey,
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[NSNumber numberWithInt:ctx->screen->geo.h], kCVPixelBufferHeightKey,
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[NSNumber numberWithInt:ctx->screen->geo.w*4],kCVPixelBufferBytesPerRowAlignmentKey,
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[NSNumber numberWithBool:YES], kCVPixelBufferCGImageCompatibilityKey,
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[NSNumber numberWithBool:YES], kCVPixelBufferCGBitmapContextCompatibilityKey,
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[NSNumber numberWithBool:YES], kCVPixelBufferOpenGLCompatibilityKey,
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nil];
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// create pixel buffer
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CVReturn ret = CVPixelBufferCreate(kCFAllocatorDefault,
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ctx->screen->geo.w,
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ctx->screen->geo.h,
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k32ARGBPixelFormat,
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(CFDictionaryRef)d,
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&textFrame);
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// TODO - Implement properly
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//NSFont * font =[NSFont fontWithName:@"Helvetica" size:32.0];
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[theString initWithString:text withAttributes:stanStringAttrib];
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[theString drawOnBuffer:textFrame];
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[self feedFrame:textFrame];
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CVPixelBufferRelease(textFrame);
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needsNewFrame = NO;
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}
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[lock unlock];
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[pool release];
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return [super currentFrame];
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}
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- (IBAction)setText:(NSString *)theText withAttributes:(NSDictionary *)attributes
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{
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if (!layer)
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[self start];
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if (text)
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[text release];
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text = [theText retain];
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stanStringAttrib = attributes;
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needsNewFrame = YES;
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}
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- (IBAction)setImageParameter:(id)sender
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{
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[super setImageParameter:sender];
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needsNewFrame = YES;
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}
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@end
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