Move vulkan_platform.h to common/

This file changes the non-dispatchable Vulkan handle types. We want to
use some of these handles in utils/VulkanSwapChain.cpp so it needs to
have access to it. The file could include
backend/vulkan/vulkan_platform.h but it seems a bit cleaner to move the
header in common/ instead with a warning if the Vulkan backend isn't
enabled.

src/backend/CMakeLists.txt

@@ -288,7 +288,6 @@ if (NXT_ENABLE_VULKAN)
     target_include_directories(vulkan_autogen PUBLIC ${SRC_DIR})
 
     list(APPEND BACKEND_SOURCES
-        ${VULKAN_DIR}/vulkan_platform.h
         ${VULKAN_DIR}/BufferUploader.cpp
         ${VULKAN_DIR}/BufferUploader.h
         ${VULKAN_DIR}/BufferVk.cpp

src/backend/vulkan/BufferUploader.h

@@ -15,8 +15,8 @@
 #ifndef BACKEND_VULKAN_BUFFERUPLOADER_H_
 #define BACKEND_VULKAN_BUFFERUPLOADER_H_
 
-#include "backend/vulkan/vulkan_platform.h"
 #include "common/SerialQueue.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/BufferVk.h

@@ -18,8 +18,8 @@
 #include "backend/Buffer.h"
 
 #include "backend/vulkan/MemoryAllocator.h"
-#include "backend/vulkan/vulkan_platform.h"
 #include "common/SerialQueue.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/CommandBufferVk.h

@@ -17,7 +17,7 @@
 
 #include "backend/CommandBuffer.h"
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/FencedDeleter.h

@@ -15,8 +15,8 @@
 #ifndef BACKEND_VULKAN_FENCEDDELETER_H_
 #define BACKEND_VULKAN_FENCEDDELETER_H_
 
-#include "backend/vulkan/vulkan_platform.h"
 #include "common/SerialQueue.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/FramebufferVk.h

@@ -17,7 +17,7 @@
 
 #include "backend/Framebuffer.h"
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/InputStateVk.h

@@ -17,7 +17,7 @@
 
 #include "backend/InputState.h"
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/MemoryAllocator.h

@@ -15,8 +15,8 @@
 #ifndef BACKEND_VULKAN_MEMORYALLOCATOR_H_
 #define BACKEND_VULKAN_MEMORYALLOCATOR_H_
 
-#include "backend/vulkan/vulkan_platform.h"
 #include "common/SerialQueue.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/PipelineLayoutVk.h

@@ -17,7 +17,7 @@
 
 #include "backend/PipelineLayout.h"
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/RenderPassVk.h

@@ -17,7 +17,7 @@
 
 #include "backend/RenderPass.h"
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/RenderPipelineVk.h

@@ -17,7 +17,7 @@
 
 #include "backend/RenderPipeline.h"
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/ShaderModuleVk.h

@@ -17,7 +17,7 @@
 
 #include "backend/ShaderModule.h"
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/TextureVk.h

@@ -18,7 +18,7 @@
 #include "backend/Texture.h"
 
 #include "backend/vulkan/MemoryAllocator.h"
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 namespace backend { namespace vulkan {
 

src/backend/vulkan/VulkanFunctions.h

@@ -15,7 +15,7 @@
 #ifndef BACKEND_VULKAN_VULKANFUNCTIONS_H_
 #define BACKEND_VULKAN_VULKANFUNCTIONS_H_
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 class DynamicLib;
 

src/backend/vulkan/VulkanInfo.h

@@ -15,7 +15,7 @@
 #ifndef BACKEND_VULKAN_VULKANINFO_H_
 #define BACKEND_VULKAN_VULKANINFO_H_
 
-#include "backend/vulkan/vulkan_platform.h"
+#include "common/vulkan_platform.h"
 
 #include <vector>
 

src/common/CMakeLists.txt

@@ -27,6 +27,7 @@ list(APPEND COMMON_SOURCES
     ${COMMON_DIR}/Serial.h
     ${COMMON_DIR}/SerialQueue.h
     ${COMMON_DIR}/SwapChainUtils.h
+    ${COMMON_DIR}/vulkan_platform.h
 )
 
 add_library(nxt_common STATIC ${COMMON_SOURCES})

src/common/vulkan_platform.h

@@ -12,8 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef BACKEND_VULKAN_VULKANPLATFORM_H_
-#define BACKEND_VULKAN_VULKANPLATFORM_H_
+#ifndef COMMON_VULKANPLATFORM_H_
+#define COMMON_VULKANPLATFORM_H_
+
+#if !defined(NXT_ENABLE_BACKEND_VULKAN)
+#    error "vulkan_platform.h included without the Vulkan backend enabled"
+#endif
 
 #include <cstddef>
 #include <cstdint>
@@ -72,4 +76,4 @@ class VkNonDispatchableHandle {
 #    undef VK_NULL_HANDLE
 #    define VK_NULL_HANDLE nullptr
 
-#endif  // BACKEND_VULKAN_VULKANPLATFORM_H_
+#endif  // COMMON_VULKANPLATFORM_H_