Ad workaround for broken B5G6R5 format in Intel driver.

2 files changed, 11 insertions, 2 deletions

diff --git a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
index dcc2233fc..d03347d25 100755
--- a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
+++ b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
@@ -896,11 +896,19 @@ void Renderer11::populateRenderer11DeviceCaps()
         }
     }
 
-    hr = mDevice->CheckFormatSupport(DXGI_FORMAT_B5G6R5_UNORM, &(mRenderer11DeviceCaps.B5G6R5support));
-    if (FAILED(hr))
+    if (getWorkarounds().disableB5G6R5Support)
     {
         mRenderer11DeviceCaps.B5G6R5support = 0;
     }
+    else
+    {
+        hr = mDevice->CheckFormatSupport(DXGI_FORMAT_B5G6R5_UNORM,
+                                         &(mRenderer11DeviceCaps.B5G6R5support));
+        if (FAILED(hr))
+        {
+            mRenderer11DeviceCaps.B5G6R5support = 0;
+        }
+    }
 
     hr = mDevice->CheckFormatSupport(DXGI_FORMAT_B4G4R4A4_UNORM, &(mRenderer11DeviceCaps.B4G4R4A4support));
     if (FAILED(hr))
diff --git a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp
index 6bad7b2ec..f7548c4ee 100755
--- a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp
+++ b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp
@@ -1541,6 +1541,7 @@ WorkaroundsD3D GenerateWorkarounds(const Renderer11DeviceCaps &deviceCaps,
     workarounds.getDimensionsIgnoresBaseLevel     = (adapterDesc.VendorId == VENDOR_ID_NVIDIA);
 
     workarounds.preAddTexelFetchOffsets = (adapterDesc.VendorId == VENDOR_ID_INTEL);
+    workarounds.disableB5G6R5Support    = (adapterDesc.VendorId == VENDOR_ID_INTEL);
 
     return workarounds;
 }