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Reland "Improve thread-safety of MTL Renderer."

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This is a reland of a8f13ccad400eb8ff84a379042c0595951ca9658

Original change's description:
> Improve thread-safety of MTL Renderer.
> 
> Bug: b/77579859
> Change-Id: I427d0f41593155dc5cbf98a09d7ec826497b803c
> Reviewed-on: https://webrtc-review.googlesource.com/67040
> Commit-Queue: Kári Helgason <kthelgason@webrtc.org>
> Reviewed-by: Anders Carlsson <andersc@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#22795}

Bug: b/77579859
Change-Id: I9582cffaae5e241fdb4e41a2a5892738b7246e39
Reviewed-on: https://webrtc-review.googlesource.com/68960
Reviewed-by: Anders Carlsson <andersc@webrtc.org>
Commit-Queue: Kári Helgason <kthelgason@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22806}
This commit is contained in:
Kári Tristan Helgason
2018-04-10 10:38:43 +02:00
committed by Commit Bot
parent 07f80cc393
commit e49452de1f
2 changed files with 7 additions and 7 deletions
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2
sdk/objc/Framework/Classes/Metal/RTCMTLNV12Renderer.mm
View File

@ -18,6 +18,7 @@
#import "WebRTC/RTCVideoFrameBuffer.h"
#import "RTCMTLRenderer+Private.h"
#include "rtc_base/checks.h"
#define MTL_STRINGIFY(s) @ #s
@ -85,6 +86,7 @@ static NSString *const shaderSource = MTL_STRINGIFY(
}
- (BOOL)setupTexturesForFrame:(nonnull RTCVideoFrame *)frame {
RTC_DCHECK([frame.buffer isKindOfClass:[RTCCVPixelBuffer class]]);
[super setupTexturesForFrame:frame];
CVPixelBufferRef pixelBuffer = ((RTCCVPixelBuffer *)frame.buffer).pixelBuffer;

12
sdk/objc/Framework/Classes/Metal/RTCMTLVideoView.m
View File

@ -105,12 +105,12 @@
- (void)drawInMTKView:(nonnull MTKView *)view {
NSAssert(view == self.metalView, @"Receiving draw callbacks from foreign instance.");
if (!self.videoFrame) {
RTCVideoFrame *videoFrame = self.videoFrame;
if (!videoFrame) {
return;
}
id<RTCMTLRenderer> renderer = nil;
if ([self.videoFrame.buffer isKindOfClass:[RTCCVPixelBuffer class]]) {
if ([videoFrame.buffer isKindOfClass:[RTCCVPixelBuffer class]]) {
if (!self.rendererNV12) {
self.rendererNV12 = [RTCMTLVideoView createNV12Renderer];
if (![self.rendererNV12 addRenderingDestination:self.metalView]) {
@ -118,7 +118,7 @@
RTCLogError(@"Failed to create NV12 renderer");
}
}
renderer = self.rendererNV12;
[self.rendererNV12 drawFrame:videoFrame];
} else {
if (!self.rendererI420) {
self.rendererI420 = [RTCMTLVideoView createI420Renderer];
@ -127,10 +127,8 @@
RTCLogError(@"Failed to create I420 renderer");
}
}
renderer = self.rendererI420;
[self.rendererI420 drawFrame:videoFrame];
}
[renderer drawFrame:self.videoFrame];
}
- (void)mtkView:(MTKView *)view drawableSizeWillChange:(CGSize)size {