Repo created

2025-11-22 14:04:28 +01:00 · 2025-11-22 14:04:28 +01:00 · f8c34fa5ee
commit f8c34fa5ee
parent 81b91f4139
22732 changed files with 4815320 additions and 2 deletions
--- a/TMessagesProj/jni/voip/tgcalls/platform/darwin/macOS/TGRTCMTLI420Renderer.mm
+++ b/TMessagesProj/jni/voip/tgcalls/platform/darwin/macOS/TGRTCMTLI420Renderer.mm
@ -0,0 +1,111 @@
+/*
+ *  Copyright 2017 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 "TGRTCMTLI420Renderer.h"
+
+#import <Metal/Metal.h>
+#import <MetalKit/MetalKit.h>
+
+#import "base/RTCI420Buffer.h"
+#import "base/RTCLogging.h"
+#import "base/RTCVideoFrame.h"
+#import "base/RTCVideoFrameBuffer.h"
+
+#import "TGRTCMTLRenderer+Private.h"
+
+
+@implementation TGRTCMTLI420Renderer {
+  // Textures.
+  id<MTLTexture> _yTexture;
+  id<MTLTexture> _uTexture;
+  id<MTLTexture> _vTexture;
+
+  MTLTextureDescriptor *_descriptor;
+  MTLTextureDescriptor *_chromaDescriptor;
+
+  int _width;
+  int _height;
+  int _chromaWidth;
+  int _chromaHeight;
+}
+
+
+
+- (void)getWidth:(nonnull int *)width
+          height:(nonnull int *)height
+         ofFrame:(nonnull RTC_OBJC_TYPE(RTCVideoFrame) *)frame {
+  *width = frame.width;
+  *height = frame.height;
+}
+
+
+- (BOOL)setupTexturesForFrame:(nonnull RTC_OBJC_TYPE(RTCVideoFrame) *)frame {
+  if (![super setupTexturesForFrame:frame]) {
+    return NO;
+  }
+
+  id<MTLDevice> device = [self currentMetalDevice];
+  if (!device) {
+    return NO;
+  }
+
+  id<RTC_OBJC_TYPE(RTCI420Buffer)> buffer = [frame.buffer toI420];
+
+  // Luma (y) texture.
+  if (!_descriptor || _width != frame.width || _height != frame.height) {
+    _width = frame.width;
+    _height = frame.height;
+    _descriptor = [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatR8Unorm
+                                                                     width:_width
+                                                                    height:_height
+                                                                 mipmapped:NO];
+    _descriptor.usage = MTLTextureUsageShaderRead;
+    _yTexture = [device newTextureWithDescriptor:_descriptor];
+  }
+
+  // Chroma (u,v) textures
+  [_yTexture replaceRegion:MTLRegionMake2D(0, 0, _width, _height)
+               mipmapLevel:0
+                 withBytes:buffer.dataY
+               bytesPerRow:buffer.strideY];
+
+  if (!_chromaDescriptor || _chromaWidth != frame.width / 2 || _chromaHeight != frame.height / 2) {
+    _chromaWidth = frame.width / 2;
+    _chromaHeight = frame.height / 2;
+    _chromaDescriptor =
+        [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatR8Unorm
+                                                           width:_chromaWidth
+                                                          height:_chromaHeight
+                                                       mipmapped:NO];
+    _chromaDescriptor.usage = MTLTextureUsageShaderRead;
+    _uTexture = [device newTextureWithDescriptor:_chromaDescriptor];
+    _vTexture = [device newTextureWithDescriptor:_chromaDescriptor];
+  }
+
+  [_uTexture replaceRegion:MTLRegionMake2D(0, 0, _chromaWidth, _chromaHeight)
+               mipmapLevel:0
+                 withBytes:buffer.dataU
+               bytesPerRow:buffer.strideU];
+  [_vTexture replaceRegion:MTLRegionMake2D(0, 0, _chromaWidth, _chromaHeight)
+               mipmapLevel:0
+                 withBytes:buffer.dataV
+               bytesPerRow:buffer.strideV];
+
+  return (_uTexture != nil) && (_yTexture != nil) && (_vTexture != nil);
+}
+
+- (void)uploadTexturesToRenderEncoder:(id<MTLRenderCommandEncoder>)renderEncoder {
+  [renderEncoder setFragmentTexture:_yTexture atIndex:0];
+  [renderEncoder setFragmentTexture:_uTexture atIndex:1];
+  [renderEncoder setFragmentTexture:_vTexture atIndex:2];
+}
+
+@end
+