D3D: Re-mark StreamDraw buffers as dynamic.

The StreamDraw usage flag was changed to a static type in http://crrev.com/50eb1e6f77b3b0ad89d2cd00efc0d1d673365296 but it appears to have regressed performance in several Chrome benchmarks because Skia uses it as a usage flag for buffers that change data frequently. BUG=angleproject:3366 BUG=953788 BUG=954028 Change-Id: Ib6805d94714bcd1679f3c9c49f1b70574f0b658a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1582786Reviewed-by: Yuly Novikov <ynovikov@chromium.org> Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Geoff Lang <geofflang@chromium.org>

D3D: Re-mark StreamDraw buffers as dynamic.
1f6eb0cd · Geoff Lang · Commit Bot · 3c369d19 · 1f6eb0cd
Commit 1f6eb0cd authored Apr 24, 2019 by Geoff Lang Committed by Commit Bot Apr 24, 2019
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BufferD3D.cpp src/libANGLE/renderer/d3d/BufferD3D.cpp +1 -1

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--- a/src/libANGLE/renderer/d3d/BufferD3D.cpp
+++ b/src/libANGLE/renderer/d3d/BufferD3D.cpp
@@ -57,13 +57,13 @@ void BufferD3D::updateD3DBufferUsage(const gl::Context *context, gl::BufferUsage
        case gl::BufferUsage::DynamicCopy:
        case gl::BufferUsage::DynamicRead:
        case gl::BufferUsage::StreamCopy:
-        case gl::BufferUsage::StreamDraw:
        case gl::BufferUsage::StreamRead:
            mUsage = D3DBufferUsage::STATIC;
            initializeStaticData(context);
            break;
        case gl::BufferUsage::DynamicDraw:
+        case gl::BufferUsage::StreamDraw:
            mUsage = D3DBufferUsage::DYNAMIC;
            break;
        default: