Make use of VkSemaphores thread safe assuming use of the same VkQueue.

This allows us to re-enable support for multiple GrContexts in
GrBackendTextureImageGenerator.

Bug: skia:
Change-Id: Ifd6ac1ad81cdfbd1fd986467d8beb359399d6588
Reviewed-on: https://skia-review.googlesource.com/98340
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/src/gpu/mtl/GrMtlGpu.h b/src/gpu/mtl/GrMtlGpu.h
index 61cbc62f71..5a5289b6e1 100644
--- a/src/gpu/mtl/GrMtlGpu.h
+++ b/src/gpu/mtl/GrMtlGpu.h
@@ -67,6 +67,11 @@ public:
     sk_sp<GrSemaphore> SK_WARN_UNUSED_RESULT makeSemaphore(bool isOwned) override {
         return nullptr;
     }
+    sk_sp<GrSemaphore> wrapBackendSemaphore(const GrBackendSemaphore& semaphore,
+                                            GrResourceProvider::SemaphoreWrapType wrapType,
+                                            GrWrapOwnership ownership) override { return nullptr; }
+    void insertSemaphore(sk_sp<GrSemaphore> semaphore, bool flush) override {}
+    void waitSemaphore(sk_sp<GrSemaphore> semaphore) override {}
     sk_sp<GrSemaphore> prepareTextureForCrossContextUsage(GrTexture*) override { return nullptr; }
 
 private:
@@ -129,11 +134,6 @@ private:
 
     void onFinishFlush(bool insertedSemaphores) override {}
 
-    sk_sp<GrSemaphore> onWrapBackendSemaphore(const GrBackendSemaphore& semaphore,
-                                            GrWrapOwnership ownership) override { return nullptr; }
-    void onInsertSemaphore(sk_sp<GrSemaphore> semaphore, bool flush) override {}
-    void onWaitSemaphore(sk_sp<GrSemaphore> semaphore) override {}
-
     GrStencilAttachment* createStencilAttachmentForRenderTarget(const GrRenderTarget*,
                                                                 int width,
                                                                 int height) override {