Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(590)

Unified Diff: webrtc/sdk/objc/Framework/Classes/UI/RTCEAGLVideoView.m

Issue 2890513002: Revert of Split iOS sdk in to separate targets (Closed)
Patch Set: Created 3 years, 7 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: webrtc/sdk/objc/Framework/Classes/UI/RTCEAGLVideoView.m
diff --git a/webrtc/sdk/objc/Framework/Classes/UI/RTCEAGLVideoView.m b/webrtc/sdk/objc/Framework/Classes/UI/RTCEAGLVideoView.m
deleted file mode 100644
index 1fb03bc909e27305eee7eb41bd9f6066983f7e3e..0000000000000000000000000000000000000000
--- a/webrtc/sdk/objc/Framework/Classes/UI/RTCEAGLVideoView.m
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * Copyright 2015 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#import "WebRTC/RTCEAGLVideoView.h"
-
-#import <GLKit/GLKit.h>
-
-#import "RTCShader+Private.h"
-#import "WebRTC/RTCLogging.h"
-#import "WebRTC/RTCVideoFrame.h"
-
-// RTCDisplayLinkTimer wraps a CADisplayLink and is set to fire every two screen
-// refreshes, which should be 30fps. We wrap the display link in order to avoid
-// a retain cycle since CADisplayLink takes a strong reference onto its target.
-// The timer is paused by default.
-@interface RTCDisplayLinkTimer : NSObject
-
-@property(nonatomic) BOOL isPaused;
-
-- (instancetype)initWithTimerHandler:(void (^)(void))timerHandler;
-- (void)invalidate;
-
-@end
-
-@implementation RTCDisplayLinkTimer {
- CADisplayLink *_displayLink;
- void (^_timerHandler)(void);
-}
-
-- (instancetype)initWithTimerHandler:(void (^)(void))timerHandler {
- NSParameterAssert(timerHandler);
- if (self = [super init]) {
- _timerHandler = timerHandler;
- _displayLink =
- [CADisplayLink displayLinkWithTarget:self
- selector:@selector(displayLinkDidFire:)];
- _displayLink.paused = YES;
- // Set to half of screen refresh, which should be 30fps.
- [_displayLink setFrameInterval:2];
- [_displayLink addToRunLoop:[NSRunLoop currentRunLoop]
- forMode:NSRunLoopCommonModes];
- }
- return self;
-}
-
-- (void)dealloc {
- [self invalidate];
-}
-
-- (BOOL)isPaused {
- return _displayLink.paused;
-}
-
-- (void)setIsPaused:(BOOL)isPaused {
- _displayLink.paused = isPaused;
-}
-
-- (void)invalidate {
- [_displayLink invalidate];
-}
-
-- (void)displayLinkDidFire:(CADisplayLink *)displayLink {
- _timerHandler();
-}
-
-@end
-
-// RTCEAGLVideoView wraps a GLKView which is setup with
-// enableSetNeedsDisplay = NO for the purpose of gaining control of
-// exactly when to call -[GLKView display]. This need for extra
-// control is required to avoid triggering method calls on GLKView
-// that results in attempting to bind the underlying render buffer
-// when the drawable size would be empty which would result in the
-// error GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT. -[GLKView display] is
-// the method that will trigger the binding of the render
-// buffer. Because the standard behaviour of -[UIView setNeedsDisplay]
-// is disabled for the reasons above, the RTCEAGLVideoView maintains
-// its own |isDirty| flag.
-
-@interface RTCEAGLVideoView () <GLKViewDelegate>
-// |videoFrame| is set when we receive a frame from a worker thread and is read
-// from the display link callback so atomicity is required.
-@property(atomic, strong) RTCVideoFrame *videoFrame;
-@property(nonatomic, readonly) GLKView *glkView;
-@end
-
-@implementation RTCEAGLVideoView {
- RTCDisplayLinkTimer *_timer;
- EAGLContext *_glContext;
- // This flag should only be set and read on the main thread (e.g. by
- // setNeedsDisplay)
- BOOL _isDirty;
- id<RTCShader> _i420Shader;
- id<RTCShader> _nv12Shader;
- RTCVideoFrame *_lastDrawnFrame;
-}
-
-@synthesize delegate = _delegate;
-@synthesize videoFrame = _videoFrame;
-@synthesize glkView = _glkView;
-
-- (instancetype)initWithFrame:(CGRect)frame {
- if (self = [super initWithFrame:frame]) {
- [self configure];
- }
- return self;
-}
-
-- (instancetype)initWithCoder:(NSCoder *)aDecoder {
- if (self = [super initWithCoder:aDecoder]) {
- [self configure];
- }
- return self;
-}
-
-- (void)configure {
- EAGLContext *glContext =
- [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
- if (!glContext) {
- glContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
- }
- _glContext = glContext;
-
- // GLKView manages a framebuffer for us.
- _glkView = [[GLKView alloc] initWithFrame:CGRectZero
- context:_glContext];
- _glkView.drawableColorFormat = GLKViewDrawableColorFormatRGBA8888;
- _glkView.drawableDepthFormat = GLKViewDrawableDepthFormatNone;
- _glkView.drawableStencilFormat = GLKViewDrawableStencilFormatNone;
- _glkView.drawableMultisample = GLKViewDrawableMultisampleNone;
- _glkView.delegate = self;
- _glkView.layer.masksToBounds = YES;
- _glkView.enableSetNeedsDisplay = NO;
- [self addSubview:_glkView];
-
- // Listen to application state in order to clean up OpenGL before app goes
- // away.
- NSNotificationCenter *notificationCenter =
- [NSNotificationCenter defaultCenter];
- [notificationCenter addObserver:self
- selector:@selector(willResignActive)
- name:UIApplicationWillResignActiveNotification
- object:nil];
- [notificationCenter addObserver:self
- selector:@selector(didBecomeActive)
- name:UIApplicationDidBecomeActiveNotification
- object:nil];
-
- // Frames are received on a separate thread, so we poll for current frame
- // using a refresh rate proportional to screen refresh frequency. This
- // occurs on the main thread.
- __weak RTCEAGLVideoView *weakSelf = self;
- _timer = [[RTCDisplayLinkTimer alloc] initWithTimerHandler:^{
- RTCEAGLVideoView *strongSelf = weakSelf;
- [strongSelf displayLinkTimerDidFire];
- }];
- [self setupGL];
-}
-
-- (void)dealloc {
- [[NSNotificationCenter defaultCenter] removeObserver:self];
- UIApplicationState appState =
- [UIApplication sharedApplication].applicationState;
- if (appState == UIApplicationStateActive) {
- [self teardownGL];
- }
- [_timer invalidate];
- if (_glContext && [EAGLContext currentContext] == _glContext) {
- [EAGLContext setCurrentContext:nil];
- }
-}
-
-#pragma mark - UIView
-
-- (void)setNeedsDisplay {
- [super setNeedsDisplay];
- _isDirty = YES;
-}
-
-- (void)setNeedsDisplayInRect:(CGRect)rect {
- [super setNeedsDisplayInRect:rect];
- _isDirty = YES;
-}
-
-- (void)layoutSubviews {
- [super layoutSubviews];
- _glkView.frame = self.bounds;
-}
-
-#pragma mark - GLKViewDelegate
-
-// This method is called when the GLKView's content is dirty and needs to be
-// redrawn. This occurs on main thread.
-- (void)glkView:(GLKView *)view drawInRect:(CGRect)rect {
- // The renderer will draw the frame to the framebuffer corresponding to the
- // one used by |view|.
- RTCVideoFrame *frame = self.videoFrame;
- if (!frame || frame == _lastDrawnFrame) {
- return;
- }
- [self ensureGLContext];
- glClear(GL_COLOR_BUFFER_BIT);
- id<RTCShader> shader = nil;
- if (frame.nativeHandle) {
- if (!_nv12Shader) {
- _nv12Shader = [[RTCNativeNV12Shader alloc] initWithContext:_glContext];
- }
- shader = _nv12Shader;
- } else {
- if (!_i420Shader) {
- _i420Shader = [[RTCI420Shader alloc] initWithContext:_glContext];
- }
- shader = _i420Shader;
- }
- if (shader && [shader drawFrame:frame]) {
- _lastDrawnFrame = frame;
- } else {
- RTCLog(@"Failed to draw frame.");
- }
-}
-
-#pragma mark - RTCVideoRenderer
-
-// These methods may be called on non-main thread.
-- (void)setSize:(CGSize)size {
- __weak RTCEAGLVideoView *weakSelf = self;
- dispatch_async(dispatch_get_main_queue(), ^{
- RTCEAGLVideoView *strongSelf = weakSelf;
- [strongSelf.delegate videoView:strongSelf didChangeVideoSize:size];
- });
-}
-
-- (void)renderFrame:(RTCVideoFrame *)frame {
- self.videoFrame = frame;
-}
-
-#pragma mark - Private
-
-- (void)displayLinkTimerDidFire {
- // Don't render unless video frame have changed or the view content
- // has explicitly been marked dirty.
- if (!_isDirty && _lastDrawnFrame == self.videoFrame) {
- return;
- }
-
- // Always reset isDirty at this point, even if -[GLKView display]
- // won't be called in the case the drawable size is empty.
- _isDirty = NO;
-
- // Only call -[GLKView display] if the drawable size is
- // non-empty. Calling display will make the GLKView setup its
- // render buffer if necessary, but that will fail with error
- // GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT if size is empty.
- if (self.bounds.size.width > 0 && self.bounds.size.height > 0) {
- [_glkView display];
- }
-}
-
-- (void)setupGL {
- self.videoFrame = nil;
- [self ensureGLContext];
- glDisable(GL_DITHER);
- _timer.isPaused = NO;
-}
-
-- (void)teardownGL {
- self.videoFrame = nil;
- _timer.isPaused = YES;
- [_glkView deleteDrawable];
- [self ensureGLContext];
- _i420Shader = nil;
- _nv12Shader = nil;
-}
-
-- (void)didBecomeActive {
- [self setupGL];
-}
-
-- (void)willResignActive {
- [self teardownGL];
-}
-
-- (void)ensureGLContext {
- NSAssert(_glContext, @"context shouldn't be nil");
- if ([EAGLContext currentContext] != _glContext) {
- [EAGLContext setCurrentContext:_glContext];
- }
-}
-
-@end
« no previous file with comments | « webrtc/sdk/objc/Framework/Classes/UI/RTCCameraPreviewView.m ('k') | webrtc/sdk/objc/Framework/Classes/UI/RTCNSGLVideoView.m » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698