Disable textureRG for DX9

DX9 emulates GL_R8_EXT using BGR8. When we made the switch to using GL_R8_EXT for YUV decoding, we decreased performance on DX9 machines. DX9 supports luminance, which we fall back to when R8 isn't available. BUG=438736 Change-Id: Iaa8d0518d481927d66130ea1bf3a95a750c5a761 Reviewed-on: https://chromium-review.googlesource.com/255662Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

Disable textureRG for DX9
c92fa1ee · hendrikw · Geoff Lang · 01930488 · c92fa1ee
Commit c92fa1ee authored Mar 03, 2015 by hendrikw Committed by Geoff Lang Mar 04, 2015
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renderer9_utils.cpp src/libANGLE/renderer/d3d/d3d9/renderer9_utils.cpp +3 -0

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--- a/src/libANGLE/renderer/d3d/d3d9/renderer9_utils.cpp
+++ b/src/libANGLE/renderer/d3d/d3d9/renderer9_utils.cpp
@@ -483,6 +483,9 @@ void GenerateCaps(IDirect3D9 *d3d9, IDirect3DDevice9 *device, D3DDEVTYPE deviceT
    extensions->mapBuffer = false;
    extensions->mapBufferRange = false;

+    // textureRG is emulated and not performant.
+    extensions->textureRG = false;
+
    D3DADAPTER_IDENTIFIER9 adapterId = { 0 };
    if (SUCCEEDED(d3d9->GetAdapterIdentifier(adapter, 0, &adapterId)))
    {