Build dynamic iOS SDK.
- Places most ObjC code into webrtc/sdk/objc instead.
- New gyp targets to build, strip and export symbols for dylib.
- Removes old script used to generate dylib.
BUG=
Review URL: https://codereview.webrtc.org/1903663002
Cr-Commit-Position: refs/heads/master@{#12524}
diff --git a/webrtc/sdk/objc/Framework/Classes/RTCNSGLVideoView.m b/webrtc/sdk/objc/Framework/Classes/RTCNSGLVideoView.m
new file mode 100644
index 0000000..415efe8
--- /dev/null
+++ b/webrtc/sdk/objc/Framework/Classes/RTCNSGLVideoView.m
@@ -0,0 +1,146 @@
+/*
+ * 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.
+ */
+
+#if !TARGET_OS_IPHONE
+
+#import "WebRTC/RTCNSGLVideoView.h"
+
+#import <CoreVideo/CVDisplayLink.h>
+#import <OpenGL/gl3.h>
+
+#import "RTCOpenGLVideoRenderer.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) RTCOpenGLVideoRenderer *glRenderer;
+- (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;
+}
+
+@synthesize delegate = _delegate;
+@synthesize videoFrame = _videoFrame;
+@synthesize glRenderer = _glRenderer;
+
+- (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];
+ if (!self.glRenderer) {
+ self.glRenderer =
+ [[RTCOpenGLVideoRenderer alloc] initWithContext:[self openGLContext]];
+ }
+ [self.glRenderer setupGL];
+ [self setupDisplayLink];
+}
+
+- (void)clearGLContext {
+ [self.glRenderer teardownGL];
+ self.glRenderer = 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 *videoFrame = self.videoFrame;
+ if (self.glRenderer.lastDrawnFrame != videoFrame) {
+ // 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.
+ CGLLockContext([[self openGLContext] CGLContextObj]);
+ [self.glRenderer drawFrame:videoFrame];
+ CGLUnlockContext([[self openGLContext] 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;
+}
+
+@end
+
+#endif // !TARGET_OS_IPHONE