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Fix VulkanImageWrappingUsageTests.ClearImageAcrossDevicesAliased

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In Vulkan, importing memory by file descriptor takes ownership of
the file descriptor. It is necessary to dup it in
ClearImageAcrossDevicesAliased because the texture is imported
twice. This fixes these tests on SwiftShader.

Bug: dawn:417
Change-Id: I08b6464c4b8bd31f738037678e29fd6d066e7888
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22020
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This commit is contained in:
Austin Eng
2020-05-22 00:23:39 +00:00
committed by Commit Bot service account
parent bd0ad7921d
commit 65ee6497d6
2 changed files with 16 additions and 10 deletions
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5
src/include/dawn_native/VulkanBackend.h
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@@ -34,7 +34,10 @@ namespace dawn_native { namespace vulkan {
// Can't use DAWN_PLATFORM_LINUX since header included in both dawn and chrome
#ifdef __linux__
// Common properties of external images represented by FDs
// Common properties of external images represented by FDs. On successful import the file
// descriptor's ownership is transferred to the Dawn implementation and they shouldn't be
// used outside of Dawn again. TODO(enga): Also transfer ownership in the error case so the
// caller can assume the FD is always consumed.
struct DAWN_NATIVE_EXPORT ExternalImageDescriptorFD : ExternalImageDescriptor {
public:
int memoryFD; // A file descriptor from an export of the memory of the image