Using libyuv::CopyPlane to do an optimised copy of a linear buffer

memcpy is used to copy a linear buffer to the dst linear buffer, this CL
replaces it with libyuv::CopyPlane.

Bug: None
Change-Id: I2741aed2defe526bdba9106695933037a541bcea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2474913Reviewed-by: Daniele Castagna <dcastagna@chromium.org>
Commit-Queue: Zhaoliang Ma <zhaoliang.ma@intel.com>
Cr-Commit-Position: refs/heads/master@{#818334}

components/viz/service/BUILD.gn

@@ -382,6 +382,7 @@ viz_source_set("gpu_service_dependencies") {
   deps = [
     "//base",
     "//gpu/config",
+    "//third_party/libyuv",
   ]
 
   if (is_win) {

components/viz/service/display_embedder/DEPS

@@ -33,6 +33,7 @@ include_rules = [
   "+third_party/dawn/src/include",
   "+third_party/khronos/GLES2/gl2.h",
   "+third_party/khronos/GLES2/gl2ext.h",
+  "+third_party/libyuv",
   "+third_party/skia",
   "+ui/accelerated_widget_mac",
   "+ui/display",

components/viz/service/display_embedder/skia_output_surface_impl_on_gpu.cc

@@ -42,6 +42,7 @@
 #include "gpu/ipc/common/gpu_surface_lookup.h"
 #include "gpu/vulkan/buildflags.h"
 #include "skia/buildflags.h"
+#include "third_party/libyuv/include/libyuv/planar_functions.h"
 #include "third_party/skia/include/core/SkDeferredDisplayList.h"
 #include "ui/gfx/color_space.h"
 #include "ui/gfx/geometry/rect_conversions.h"
@@ -134,21 +135,15 @@ class CopyOutputResultYUV : public CopyOutputResult {
                       int u_out_stride,
                       uint8_t* v_out,
                       int v_out_stride) const override {
-    const auto CopyPlane = [](const uint8_t* src, int src_stride, int width,
-                              int height, uint8_t* out, int out_stride) {
-      for (int i = 0; i < height; ++i, src += src_stride, out += out_stride) {
-        memcpy(out, src, width);
-      }
-    };
     auto* data0 = static_cast<const uint8_t*>(result_->data(0));
     auto* data1 = static_cast<const uint8_t*>(result_->data(1));
     auto* data2 = static_cast<const uint8_t*>(result_->data(2));
-    CopyPlane(data0, result_->rowBytes(0), width(0), height(0), y_out,
-              y_out_stride);
-    CopyPlane(data1, result_->rowBytes(1), width(1), height(1), u_out,
-              u_out_stride);
-    CopyPlane(data2, result_->rowBytes(2), width(2), height(2), v_out,
-              v_out_stride);
+    libyuv::CopyPlane(data0, result_->rowBytes(0), y_out, y_out_stride,
+                      width(0), height(0));
+    libyuv::CopyPlane(data1, result_->rowBytes(1), u_out, u_out_stride,
+                      width(1), height(1));
+    libyuv::CopyPlane(data2, result_->rowBytes(2), v_out, v_out_stride,
+                      width(2), height(2));
     return true;
   }