commit 94a2c0ecd4537c52e6b4a3ef9d119dce44627ca8
author Chia-I Wu <olv@google.com> Wed Apr 13 10:20:59 2016 +0800
committer Chia-I Wu <olv@google.com> Thu Apr 14 04:48:45 2016 +0800
tree b4428370b3b06abf650f19fc305f7fd17d008420
parent 7fcd744c42c91eab5210df2080b0a7a6b5838f68

vulkan: pass VK_LAYER_FUNCTION_DATA_CALLBACK to layers

VK_LAYER_FUNCTION_DATA_CALLBACK effectively allows us to pass
driver::SetDataInternal to layers.  It will be called on handles of
potentially unknown types.  Add two internal types

  VK_DEFINE_HANDLE(InstanceDispatchable)
  VK_DEFINE_HANDLE(DeviceDispatchable)

in driver namespace for type safety.

Bug: 28015368
Change-Id: I7389829a7d8c374197cd7046973777b49e436961

vulkan/libvulkan/driver.h

diff --git a/vulkan/libvulkan/driver.h b/vulkan/libvulkan/driver.h
index 22db93f..5543792 100644
--- a/vulkan/libvulkan/driver.h
+++ b/vulkan/libvulkan/driver.h
@@ -64,6 +64,9 @@
 
 namespace driver {
 
+VK_DEFINE_HANDLE(InstanceDispatchable)
+VK_DEFINE_HANDLE(DeviceDispatchable)
+
 struct InstanceData {
     InstanceData(const VkAllocationCallbacks& alloc)
         : opaque_api_data(),
@@ -127,12 +130,15 @@
 
 template <typename DispatchableType>
 void StaticAssertDispatchable(DispatchableType) {
-    static_assert(std::is_same<DispatchableType, VkInstance>::value ||
-                      std::is_same<DispatchableType, VkPhysicalDevice>::value ||
-                      std::is_same<DispatchableType, VkDevice>::value ||
-                      std::is_same<DispatchableType, VkQueue>::value ||
-                      std::is_same<DispatchableType, VkCommandBuffer>::value,
-                  "unrecognized dispatchable type");
+    static_assert(
+        std::is_same<DispatchableType, VkInstance>::value ||
+            std::is_same<DispatchableType, VkPhysicalDevice>::value ||
+            std::is_same<DispatchableType, VkDevice>::value ||
+            std::is_same<DispatchableType, InstanceDispatchable>::value ||
+            std::is_same<DispatchableType, VkQueue>::value ||
+            std::is_same<DispatchableType, VkCommandBuffer>::value ||
+            std::is_same<DispatchableType, DeviceDispatchable>::value,
+        "unrecognized dispatchable type");
 }
 
 template <typename DispatchableType>
@@ -170,6 +176,11 @@
     return SetDataInternal(physical_dev, &data);
 }
 
+inline bool SetData(InstanceDispatchable dispatchable,
+                    const InstanceData& data) {
+    return SetDataInternal(dispatchable, &data);
+}
+
 inline bool SetData(VkDevice dev, const DeviceData& data) {
     return SetDataInternal(dev, &data);
 }
@@ -182,6 +193,10 @@
     return SetDataInternal(cmd, &data);
 }
 
+inline bool SetData(DeviceDispatchable dispatchable, const DeviceData& data) {
+    return SetDataInternal(dispatchable, &data);
+}
+
 inline InstanceData& GetData(VkInstance instance) {
     return *reinterpret_cast<InstanceData*>(GetDataInternal(instance));
 }
@@ -190,6 +205,10 @@
     return *reinterpret_cast<InstanceData*>(GetDataInternal(physical_dev));
 }
 
+inline InstanceData& GetData(InstanceDispatchable dispatchable) {
+    return *reinterpret_cast<InstanceData*>(GetDataInternal(dispatchable));
+}
+
 inline DeviceData& GetData(VkDevice dev) {
     return *reinterpret_cast<DeviceData*>(GetDataInternal(dev));
 }
@@ -202,6 +221,10 @@
     return *reinterpret_cast<DeviceData*>(GetDataInternal(cmd));
 }
 
+inline DeviceData& GetData(DeviceDispatchable dispatchable) {
+    return *reinterpret_cast<DeviceData*>(GetDataInternal(dispatchable));
+}
+
 }  // namespace driver
 }  // namespace vulkan