Index: webrtc/sdk/objc/Framework/Classes/RTCNSGLVideoView.m |
diff --git a/webrtc/sdk/objc/Framework/Classes/RTCNSGLVideoView.m b/webrtc/sdk/objc/Framework/Classes/RTCNSGLVideoView.m |
deleted file mode 100644 |
index 530d9a7e6a195e1d00afc10428f9e9a88b093d47..0000000000000000000000000000000000000000 |
--- a/webrtc/sdk/objc/Framework/Classes/RTCNSGLVideoView.m |
+++ /dev/null |
@@ -1,173 +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 <Foundation/Foundation.h> |
- |
-#if !TARGET_OS_IPHONE |
- |
-#import "WebRTC/RTCNSGLVideoView.h" |
- |
-#import <AppKit/NSOpenGL.h> |
-#import <CoreVideo/CVDisplayLink.h> |
-#import <OpenGL/gl3.h> |
- |
-#import "RTCShader+Private.h" |
-#import "WebRTC/RTCLogging.h" |
-#import "WebRTC/RTCVideoFrame.h" |
- |
-@interface RTCNSGLVideoView () |
-// |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(atomic, strong) id<RTCShader> i420Shader; |
- |
-- (void)drawFrame; |
-@end |
- |
-static CVReturn OnDisplayLinkFired(CVDisplayLinkRef displayLink, |
- const CVTimeStamp *now, |
- const CVTimeStamp *outputTime, |
- CVOptionFlags flagsIn, |
- CVOptionFlags *flagsOut, |
- void *displayLinkContext) { |
- RTCNSGLVideoView *view = (__bridge RTCNSGLVideoView *)displayLinkContext; |
- [view drawFrame]; |
- return kCVReturnSuccess; |
-} |
- |
-@implementation RTCNSGLVideoView { |
- CVDisplayLinkRef _displayLink; |
- RTCVideoFrame *_lastDrawnFrame; |
-} |
- |
-@synthesize delegate = _delegate; |
-@synthesize videoFrame = _videoFrame; |
-@synthesize i420Shader = _i420Shader; |
- |
-- (void)dealloc { |
- [self teardownDisplayLink]; |
-} |
- |
-- (void)drawRect:(NSRect)rect { |
- [self drawFrame]; |
-} |
- |
-- (void)reshape { |
- [super reshape]; |
- NSRect frame = [self frame]; |
- CGLLockContext([[self openGLContext] CGLContextObj]); |
- glViewport(0, 0, frame.size.width, frame.size.height); |
- CGLUnlockContext([[self openGLContext] CGLContextObj]); |
-} |
- |
-- (void)lockFocus { |
- NSOpenGLContext *context = [self openGLContext]; |
- [super lockFocus]; |
- if ([context view] != self) { |
- [context setView:self]; |
- } |
- [context makeCurrentContext]; |
-} |
- |
-- (void)prepareOpenGL { |
- [super prepareOpenGL]; |
- [self ensureGLContext]; |
- glDisable(GL_DITHER); |
- [self setupDisplayLink]; |
-} |
- |
-- (void)clearGLContext { |
- [self ensureGLContext]; |
- self.i420Shader = nil; |
- [super clearGLContext]; |
-} |
- |
-#pragma mark - RTCVideoRenderer |
- |
-// These methods may be called on non-main thread. |
-- (void)setSize:(CGSize)size { |
- dispatch_async(dispatch_get_main_queue(), ^{ |
- [self.delegate videoView:self didChangeVideoSize:size]; |
- }); |
-} |
- |
-- (void)renderFrame:(RTCVideoFrame *)frame { |
- self.videoFrame = frame; |
-} |
- |
-#pragma mark - Private |
- |
-- (void)drawFrame { |
- RTCVideoFrame *frame = self.videoFrame; |
- if (!frame || frame == _lastDrawnFrame) { |
- return; |
- } |
- // This method may be called from CVDisplayLink callback which isn't on the |
- // main thread so we have to lock the GL context before drawing. |
- NSOpenGLContext *context = [self openGLContext]; |
- CGLLockContext([context CGLContextObj]); |
- |
- [self ensureGLContext]; |
- glClear(GL_COLOR_BUFFER_BIT); |
- |
- // Rendering native CVPixelBuffer is not supported on OS X. |
- frame = [frame newI420VideoFrame]; |
- if (!self.i420Shader) { |
- self.i420Shader = [[RTCI420Shader alloc] initWithContext:context]; |
- } |
- if (self.i420Shader && [self.i420Shader drawFrame:frame]) { |
- [context flushBuffer]; |
- _lastDrawnFrame = frame; |
- } else { |
- RTCLog(@"Failed to draw frame."); |
- } |
- CGLUnlockContext([context CGLContextObj]); |
-} |
- |
-- (void)setupDisplayLink { |
- if (_displayLink) { |
- return; |
- } |
- // Synchronize buffer swaps with vertical refresh rate. |
- GLint swapInt = 1; |
- [[self openGLContext] setValues:&swapInt forParameter:NSOpenGLCPSwapInterval]; |
- |
- // Create display link. |
- CVDisplayLinkCreateWithActiveCGDisplays(&_displayLink); |
- CVDisplayLinkSetOutputCallback(_displayLink, |
- &OnDisplayLinkFired, |
- (__bridge void *)self); |
- // Set the display link for the current renderer. |
- CGLContextObj cglContext = [[self openGLContext] CGLContextObj]; |
- CGLPixelFormatObj cglPixelFormat = [[self pixelFormat] CGLPixelFormatObj]; |
- CVDisplayLinkSetCurrentCGDisplayFromOpenGLContext( |
- _displayLink, cglContext, cglPixelFormat); |
- CVDisplayLinkStart(_displayLink); |
-} |
- |
-- (void)teardownDisplayLink { |
- if (!_displayLink) { |
- return; |
- } |
- CVDisplayLinkRelease(_displayLink); |
- _displayLink = NULL; |
-} |
- |
-- (void)ensureGLContext { |
- NSOpenGLContext* context = [self openGLContext]; |
- NSAssert(context, @"context shouldn't be nil"); |
- if ([NSOpenGLContext currentContext] != context) { |
- [context makeCurrentContext]; |
- } |
-} |
- |
-@end |
- |
-#endif // !TARGET_OS_IPHONE |