1 files changed, 31 insertions, 0 deletions
diff --git a/src/gpu/mtl/GrMtlResourceProvider.mm b/src/gpu/mtl/GrMtlResourceProvider.mm
new file mode 100644
index 0000000000..2e1e40dfe9
--- /dev/null
+++ b/src/gpu/mtl/GrMtlResourceProvider.mm
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "GrMtlResourceProvider.h"
+
+#include "GrMtlCopyManager.h"
+#include "GrMtlGpu.h"
+#include "GrMtlUtil.h"
+
+#include "SkSLCompiler.h"
+
+GrMtlCopyPipelineState* GrMtlResourceProvider::findOrCreateCopyPipelineState(
+        MTLPixelFormat dstPixelFormat,
+        id<MTLFunction> vertexFunction,
+        id<MTLFunction> fragmentFunction,
+        MTLVertexDescriptor* vertexDescriptor) {
+
+    for (const auto& copyPipelineState: fCopyPipelineStateCache) {
+        if (GrMtlCopyManager::IsCompatible(copyPipelineState.get(), dstPixelFormat)) {
+            return copyPipelineState.get();
+        }
+    }
+
+    fCopyPipelineStateCache.emplace_back(GrMtlCopyPipelineState::CreateCopyPipelineState(
+             fGpu, dstPixelFormat, vertexFunction, fragmentFunction, vertexDescriptor));
+    return fCopyPipelineStateCache.back().get();
+}