Pass layer count to robust 2D array texure init.

The Vulkan back-end needs the layer count to correctly initialize the whole range of the mip level. Otherwise we were only clearing a single layer of the 2D array. This only popped up when the code started to be lazier about robust resource init. Bug: angleproject:4517 Change-Id: Id5007c877d413dc80d54d9800a5898e130593451 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2134412Reviewed-by: Cody Northrop <cnorthrop@google.com>

Pass layer count to robust 2D array texure init.
e259e7e3 · Jamie Madill · 390ef299 · e259e7e3
Commit e259e7e3 authored Apr 02, 2020 by Jamie Madill
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FramebufferAttachment.cpp src/libANGLE/FramebufferAttachment.cpp +5 -2

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--- a/src/libANGLE/FramebufferAttachment.cpp
+++ b/src/libANGLE/FramebufferAttachment.cpp
@@ -318,8 +318,11 @@ angle::Result FramebufferAttachmentObject::initializeContents(const Context *con
    // initializing entire mip levels for 2D array textures.
    if (imageIndex.getType() == TextureType::_2DArray && imageIndex.hasLayer())
    {
-        ImageIndex fullMipIndex =
-            ImageIndex::Make2DArray(imageIndex.getLevelIndex(), ImageIndex::kEntireLevel);
+        // Compute the layer count so we get a correct 2D array index.
+        const gl::Extents &size = getAttachmentSize(imageIndex);
+
+        ImageIndex fullMipIndex = ImageIndex::Make2DArrayRange(
+            imageIndex.getLevelIndex(), ImageIndex::kEntireLevel, size.depth);
        return getAttachmentImpl()->initializeContents(context, fullMipIndex);
    }
    else if (imageIndex.getType() == TextureType::_2DMultisampleArray && imageIndex.hasLayer())