forked from amazingfate/loongoffice
108 lines
3.0 KiB
Objective-C
108 lines
3.0 KiB
Objective-C
// -*- Mode: ObjC; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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//
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// This file is part of the LibreOffice project.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#import "MLORenderBuffer.h"
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#import "MLORenderManager_Impl.h"
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#import "mlo_utils.h"
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#import <QuartzCore/QuartzCore.h>
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#include <touch/touch.h>
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@interface MLORenderBuffer ()
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@property MLORenderManager * manager;
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@end
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static const CGFloat
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MIN_AVERAGE_RENDER_TIME_THRESHOLD=1.0f/100.0f,
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MIN_FPS=10.0f;
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static const NSTimeInterval SCALING_ANIMATION_DURATION = 0.02f;
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static CGFloat averageFps,maxFps;
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@implementation MLORenderBuffer
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-(id)initWithArrayIndex:(NSInteger) index renderManager:(MLORenderManager *) manager{
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self= [self init];
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if(self){
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self.index = index;
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self.manager = manager;
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self.backgroundColor = [UIColor whiteColor];
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self.previous = nil;
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}
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return self;
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}
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-(void)hide{
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self.alpha = 0;
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[self resetTransform];
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}
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-(void)setNeedsDisplayInRect:(CGRect)rect{
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[self resetTransform];
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[super setNeedsDisplayInRect:rect];
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}
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-(void) resetTransform{
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if(self.frame.origin.x ||self.frame.origin.y ){
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self.frame = CGRectMake(0,0,_manager.bufferFrame.size.width,_manager.bufferFrame.size.height);
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}
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}
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- (void)drawRect:(CGRect)rect
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{
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if(ENABLE_LO_DESKTOP){
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CGContextRef context = UIGraphicsGetCurrentContext();
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//rect = self.frame;
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LOG_RECT(rect, @"drawRect");
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CGContextSaveGState(context);
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CGContextSetFillColorWithColor(context,[UIColor whiteColor].CGColor);
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CGContextTranslateCTM(context, 0, _manager.bufferFrame.size.height);
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CGContextScaleCTM(context, 1, -1);
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CGContextScaleCTM(context, 1, 1);
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NSDate *startDate = [NSDate date];
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[_manager loRenderWillBegin];
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touch_lo_render_windows(context, rect.origin.y, rect.origin.y, rect.size.width, rect.size.height);
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CGContextRestoreGState(context);
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CGFloat duration = [[NSDate date] timeIntervalSinceDate: startDate];
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maxFps = max(maxFps,1.0f/duration);
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static float totalTime = 0,counter = 0;
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totalTime +=duration;
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counter++;
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CGFloat averageTime = totalTime / counter;
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if(averageTime >MIN_AVERAGE_RENDER_TIME_THRESHOLD){
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averageFps = 1.0f/ averageTime;
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}
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if(LOG_DRAW_RECT){
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NSLog(@"drawRect: lo_render_windows: time=%f sec, average=%f sec, fps=%f",
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duration, averageTime, averageFps);
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}
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if(_manager.currentGesture != PINCH){
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[_manager swapPreviousBuffer:_previous withNextBuffer:self];
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}
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}
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}
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+(CGFloat) getAverageFps{
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return max(averageFps, MIN_FPS);
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}
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+(CGFloat) getMaxFps{
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return max(maxFps, MIN_FPS);
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}
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@end
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