CMake: Add support for the Vulkan backend

Bug: dawn:333
Change-Id: Id509e5f06862d6fee517ef47c40418077ccf4759
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/15941
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c33f570..3a6193f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -52,6 +52,7 @@
 set(ENABLE_METAL OFF)
 set(ENABLE_OPENGL OFF)
 set(ENABLE_VULKAN OFF)
+set(USE_X11 OFF)
 if (WIN32)
     set(ENABLE_D3D12 ON)
     set(ENABLE_VULKAN ON)
@@ -60,6 +61,7 @@
 elseif(UNIX)
     set(ENABLE_OPENGL ON)
     set(ENABLE_VULKAN ON)
+    set(USE_X11 ON)
 endif()
 
 option(DAWN_ENABLE_D3D12 "Enable compilation of the D3D12 backend" ${ENABLE_D3D12})
@@ -68,6 +70,7 @@
 option(DAWN_ENABLE_OPENGL "Enable compilation of the OpenGL backend" ${ENABLE_OPENGL})
 option(DAWN_ENABLE_VULKAN "Enable compilation of the Vulkan backend" ${ENABLE_VULKAN})
 option(DAWN_ALWAYS_ASSERT "Enable assertions on all build types" OFF)
+option(DAWN_USE_X11 "Enable support for X11 surface" ${USE_X11})
 
 option(DAWN_BUILD_EXAMPLES "Enables building Dawn's exmaples" ON)
 
@@ -118,7 +121,7 @@
 if (DAWN_ENABLE_VULKAN)
     target_compile_definitions(dawn_internal_config INTERFACE "DAWN_ENABLE_BACKEND_VULKAN")
 endif()
-if (UNIX AND NOT APPLE)
+if (DAWN_USE_X11)
     target_compile_definitions(dawn_internal_config INTERFACE "DAWN_USE_X11")
 endif()
 
diff --git a/src/dawn_native/CMakeLists.txt b/src/dawn_native/CMakeLists.txt
index 552b5ee..f6705e2 100644
--- a/src/dawn_native/CMakeLists.txt
+++ b/src/dawn_native/CMakeLists.txt
@@ -144,6 +144,11 @@
             spirv-cross-core
 )
 
+if (DAWN_USE_X11)
+    find_package(X11 REQUIRED)
+    target_link_libraries(dawn_native PRIVATE ${X11_LIBRARIES})
+endif()
+
 if (DAWN_ENABLE_D3D12)
     #TODO
 endif()
@@ -258,7 +263,80 @@
 endif()
 
 if (DAWN_ENABLE_VULKAN)
-    # TODO
+    target_sources(dawn_native PRIVATE
+        "${DAWN_INCLUDE_DIR}/dawn_native/VulkanBackend.h"
+        "vulkan/AdapterVk.cpp"
+        "vulkan/AdapterVk.h"
+        "vulkan/BackendVk.cpp"
+        "vulkan/BackendVk.h"
+        "vulkan/BindGroupLayoutVk.cpp"
+        "vulkan/BindGroupLayoutVk.h"
+        "vulkan/BindGroupVk.cpp"
+        "vulkan/BindGroupVk.h"
+        "vulkan/BufferVk.cpp"
+        "vulkan/BufferVk.h"
+        "vulkan/CommandBufferVk.cpp"
+        "vulkan/CommandBufferVk.h"
+        "vulkan/CommandRecordingContext.h"
+        "vulkan/ComputePipelineVk.cpp"
+        "vulkan/ComputePipelineVk.h"
+        "vulkan/DescriptorSetService.cpp"
+        "vulkan/DescriptorSetService.h"
+        "vulkan/DeviceVk.cpp"
+        "vulkan/DeviceVk.h"
+        "vulkan/ExternalHandle.h"
+        "vulkan/FencedDeleter.cpp"
+        "vulkan/FencedDeleter.h"
+        "vulkan/Forward.h"
+        "vulkan/NativeSwapChainImplVk.cpp"
+        "vulkan/NativeSwapChainImplVk.h"
+        "vulkan/PipelineLayoutVk.cpp"
+        "vulkan/PipelineLayoutVk.h"
+        "vulkan/QueueVk.cpp"
+        "vulkan/QueueVk.h"
+        "vulkan/RenderPassCache.cpp"
+        "vulkan/RenderPassCache.h"
+        "vulkan/RenderPipelineVk.cpp"
+        "vulkan/RenderPipelineVk.h"
+        "vulkan/ResourceHeapVk.cpp"
+        "vulkan/ResourceHeapVk.h"
+        "vulkan/ResourceMemoryAllocatorVk.cpp"
+        "vulkan/ResourceMemoryAllocatorVk.h"
+        "vulkan/SamplerVk.cpp"
+        "vulkan/SamplerVk.h"
+        "vulkan/ShaderModuleVk.cpp"
+        "vulkan/ShaderModuleVk.h"
+        "vulkan/StagingBufferVk.cpp"
+        "vulkan/StagingBufferVk.h"
+        "vulkan/SwapChainVk.cpp"
+        "vulkan/SwapChainVk.h"
+        "vulkan/TextureVk.cpp"
+        "vulkan/TextureVk.h"
+        "vulkan/UtilsVulkan.cpp"
+        "vulkan/UtilsVulkan.h"
+        "vulkan/VulkanError.cpp"
+        "vulkan/VulkanError.h"
+        "vulkan/VulkanFunctions.cpp"
+        "vulkan/VulkanFunctions.h"
+        "vulkan/VulkanInfo.cpp"
+        "vulkan/VulkanInfo.h"
+        "vulkan/external_memory/MemoryService.h"
+        "vulkan/external_semaphore/SemaphoreService.h"
+    )
+
+    target_link_libraries(dawn_native PUBLIC dawn_vulkan_headers)
+
+    if (UNIX AND NOT APPLE)
+        target_sources(dawn_native PRIVATE
+            "vulkan/external_memory/MemoryServiceOpaqueFD.cpp"
+            "vulkan/external_semaphore/SemaphoreServiceOpaqueFD.cpp"
+        )
+    else()
+        target_sources(dawn_native PRIVATE
+            "vulkan/external_memory/MemoryServiceNull.cpp"
+            "vulkan/external_semaphore/SemaphoreServiceNull.cpp"
+        )
+    endif()
 endif()
 
 # TODO how to do the component build in CMake?
diff --git a/third_party/CMakeLists.txt b/third_party/CMakeLists.txt
index 56993a1..72daa1b 100644
--- a/third_party/CMakeLists.txt
+++ b/third_party/CMakeLists.txt
@@ -77,3 +77,15 @@
 add_library(dawn_khronos_platform INTERFACE)
 target_sources(dawn_khronos_platform INTERFACE "${DAWN_THIRD_PARTY_DIR}/khronos/KHR/khrplatform.h")
 target_include_directories(dawn_khronos_platform INTERFACE "${DAWN_THIRD_PARTY_DIR}/khronos")
+
+# Header-only library for Vulkan headers
+add_library(dawn_vulkan_headers INTERFACE)
+target_sources(dawn_vulkan_headers INTERFACE
+    "${DAWN_THIRD_PARTY_DIR}/khronos/vulkan/vk_icd.h"
+    "${DAWN_THIRD_PARTY_DIR}/khronos/vulkan/vk_layer.h"
+    "${DAWN_THIRD_PARTY_DIR}/khronos/vulkan/vk_platform.h"
+    "${DAWN_THIRD_PARTY_DIR}/khronos/vulkan/vk_sdk_platform.h"
+    "${DAWN_THIRD_PARTY_DIR}/khronos/vulkan/vulkan.h"
+    "${DAWN_THIRD_PARTY_DIR}/khronos/vulkan/vulkan_core.h"
+)
+target_include_directories(dawn_vulkan_headers INTERFACE "${DAWN_THIRD_PARTY_DIR}/khronos")