1 files changed, 73 insertions, 0 deletions
diff --git a/gfx/skia/skia/include/private/gpu/ganesh/GrVkTypesPriv.h b/gfx/skia/skia/include/private/gpu/ganesh/GrVkTypesPriv.h
new file mode 100644
index 0000000000..f300a71396
--- /dev/null
+++ b/gfx/skia/skia/include/private/gpu/ganesh/GrVkTypesPriv.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrVkTypesPriv_DEFINED
+#define GrVkTypesPriv_DEFINED
+
+#include "include/core/SkRefCnt.h"
+#include "include/gpu/vk/GrVkTypes.h"
+
+namespace skgpu {
+class MutableTextureStateRef;
+}
+
+
+// This struct is to used to store the the actual information about the vulkan backend image on the
+// GrBackendTexture and GrBackendRenderTarget. When a client calls getVkImageInfo on a
+// GrBackendTexture/RenderTarget, we use the GrVkBackendSurfaceInfo to create a snapshot
+// GrVkImgeInfo object. Internally, this uses a ref count GrVkImageLayout object to track the
+// current VkImageLayout which can be shared with an internal GrVkImage so that layout updates can
+// be seen by all users of the image.
+struct GrVkBackendSurfaceInfo {
+    GrVkBackendSurfaceInfo(GrVkImageInfo info) : fImageInfo(info) {}
+
+    void cleanup();
+
+    GrVkBackendSurfaceInfo& operator=(const GrVkBackendSurfaceInfo&) = delete;
+
+    // Assigns the passed in GrVkBackendSurfaceInfo to this object. if isValid is true we will also
+    // attempt to unref the old fLayout on this object.
+    void assign(const GrVkBackendSurfaceInfo&, bool isValid);
+
+    GrVkImageInfo snapImageInfo(const skgpu::MutableTextureStateRef*) const;
+
+    bool isProtected() const { return fImageInfo.fProtected == skgpu::Protected::kYes; }
+#if GR_TEST_UTILS
+    bool operator==(const GrVkBackendSurfaceInfo& that) const;
+#endif
+
+private:
+    GrVkImageInfo    fImageInfo;
+};
+
+struct GrVkImageSpec {
+    GrVkImageSpec()
+            : fImageTiling(VK_IMAGE_TILING_OPTIMAL)
+            , fFormat(VK_FORMAT_UNDEFINED)
+            , fImageUsageFlags(0)
+            , fSharingMode(VK_SHARING_MODE_EXCLUSIVE) {}
+
+    GrVkImageSpec(const GrVkSurfaceInfo& info)
+            : fImageTiling(info.fImageTiling)
+            , fFormat(info.fFormat)
+            , fImageUsageFlags(info.fImageUsageFlags)
+            , fYcbcrConversionInfo(info.fYcbcrConversionInfo)
+            , fSharingMode(info.fSharingMode) {}
+
+    VkImageTiling fImageTiling;
+    VkFormat fFormat;
+    VkImageUsageFlags fImageUsageFlags;
+    GrVkYcbcrConversionInfo fYcbcrConversionInfo;
+    VkSharingMode fSharingMode;
+};
+
+GrVkSurfaceInfo GrVkImageSpecToSurfaceInfo(const GrVkImageSpec& vkSpec,
+                                           uint32_t sampleCount,
+                                           uint32_t levelCount,
+                                           skgpu::Protected isProtected);
+
+#endif