use metal on macos

Author: malytomas

.gitignore

@@ -7,3 +7,4 @@ CMakeLists.txt.user
 CMakeSettings.json
 *~
 *.TMP
+.DS_Store

externals/dawn/CMakeLists.txt

@@ -3,17 +3,24 @@ message(STATUS "dawn")
 message(STATUS "----------------------------------------------------------------")
 
 set(CMAKE_DISABLE_FIND_PACKAGE_Python3 OFF)
+if(APPLE)
+    set(metal ON)
+	set(vulkan OFF)
+else()
+    set(metal OFF)
+	set(vulkan ON)
+endif()
 
 # dawn
 set(DAWN_ENABLE_INSTALL ON CACHE INTERNAL "Enable install step for Dawn libraries" FORCE)
 set(DAWN_ENABLE_D3D11 OFF CACHE INTERNAL "Enable compilation of the D3D11 backend" FORCE)
 set(DAWN_ENABLE_D3D12 OFF CACHE INTERNAL "Enable compilation of the D3D12 backend" FORCE)
-set(DAWN_ENABLE_METAL OFF CACHE INTERNAL "Enable compilation of the Metal backend" FORCE)
+set(DAWN_ENABLE_METAL ${metal} CACHE INTERNAL "Enable compilation of the Metal backend" FORCE)
 set(DAWN_ENABLE_NULL OFF CACHE INTERNAL "Enable compilation of the Null backend" FORCE)
 set(DAWN_ENABLE_WEBGPU_ON_WEBGPU OFF CACHE INTERNAL "Enable compilation of the WebGPU backend" FORCE)
 set(DAWN_ENABLE_DESKTOP_GL OFF CACHE INTERNAL "Enable compilation of the OpenGL backend" FORCE)
 set(DAWN_ENABLE_OPENGLES OFF CACHE INTERNAL "Enable compilation of the OpenGL ES backend" FORCE)
-set(DAWN_ENABLE_VULKAN ON CACHE INTERNAL "Enable compilation of the Vulkan backend" FORCE)
+set(DAWN_ENABLE_VULKAN ${vulkan} CACHE INTERNAL "Enable compilation of the Vulkan backend" FORCE)
 set(DAWN_FORCE_SYSTEM_COMPONENT_LOAD ON CACHE INTERNAL "Allow system component fallback" FORCE)
 set(DAWN_USE_WAYLAND OFF CACHE INTERNAL "Enable support for Wayland surface" FORCE)
 set(DAWN_USE_X11 OFF CACHE INTERNAL "Enable support for X11 surface" FORCE)
@@ -31,8 +38,8 @@ set(TINT_BUILD_WGSL_READER ON CACHE INTERNAL "Build the WGSL input reader" FORCE
 set(TINT_BUILD_GLSL_WRITER OFF CACHE INTERNAL "Build the GLSL output writer" FORCE)
 set(TINT_BUILD_GLSL_VALIDATOR OFF CACHE INTERNAL "Build the GLSL output validator" FORCE)
 set(TINT_BUILD_HLSL_WRITER OFF CACHE INTERNAL "Build the HLSL output writer" FORCE)
-set(TINT_BUILD_MSL_WRITER OFF CACHE INTERNAL "Build the MSL output writer" FORCE)
-set(TINT_BUILD_SPV_WRITER ON CACHE INTERNAL "Build the SPIR-V output writer" FORCE)
+set(TINT_BUILD_MSL_WRITER ${metal} CACHE INTERNAL "Build the MSL output writer" FORCE)
+set(TINT_BUILD_SPV_WRITER ${vulkan} CACHE INTERNAL "Build the SPIR-V output writer" FORCE)
 set(TINT_BUILD_WGSL_WRITER ON CACHE INTERNAL "Build the WGSL output writer" FORCE)
 set(TINT_ENABLE_INSTALL OFF CACHE INTERNAL "Enable install step for Tint libraries" FORCE)
 set(TINT_BUILD_CMD_TOOLS OFF CACHE INTERNAL "Build the Tint command line tools" FORCE)
@@ -43,12 +50,18 @@ set(TINT_ENABLE_IR_VALIDATION ON CACHE INTERNAL "Enable IR validation for backen
 # protobuf
 add_library(libprotobuf-mutator INTERFACE) # subvert unnecessary dependencies
 
+unset(metal)
+unset(vulkan)
+
 # add the externals
 add_subdirectory(dawn)
 
 # dawn
 add_library(cage_dawn INTERFACE)
 target_link_libraries(cage_dawn INTERFACE $<TARGET_LINKER_FILE:webgpu_dawn> $<TARGET_LINKER_FILE:webgpu_glfw>)
+if(APPLE)
+	target_link_libraries(cage_dawn INTERFACE "-framework Cocoa" "-framework IOKit" "-framework Foundation" "-framework IOSurface" "-framework QuartzCore" "-framework Metal")
+endif()
 target_include_directories(cage_dawn INTERFACE $<TARGET_PROPERTY:webgpu_dawn,INTERFACE_INCLUDE_DIRECTORIES> $<TARGET_PROPERTY:webgpu_glfw,INTERFACE_INCLUDE_DIRECTORIES>)
 add_dependencies(cage_dawn webgpu_dawn webgpu_glfw)
 add_library(cage::dawn ALIAS cage_dawn)

sources/libengine/graphics/device.cpp

@@ -97,7 +97,7 @@ namespace cage
 				wgpu::Adapter adapter;
 				{
 					wgpu::RequestAdapterOptions opts = {};
-					opts.backendType = wgpu::BackendType::Vulkan;
+					//opts.backendType = wgpu::BackendType::Vulkan;
 					opts.powerPreference = wgpu::PowerPreference::HighPerformance;
 					if (config.compatibility)
 						opts.compatibleSurface = getContext(config.compatibility)->surface;
@@ -169,7 +169,8 @@ namespace cage
 					cfg.width = res[0];
 					cfg.height = res[1];
 					cfg.presentMode = wgpu::PresentMode::Mailbox;
-					cfg.format = wgpu::TextureFormat::RGBA8Unorm;
+					//cfg.format = wgpu::TextureFormat::RGBA8Unorm;
+					cfg.format = wgpu::TextureFormat::BGRA8Unorm;
 					//cfg.usage = wgpu::TextureUsage::RenderAttachment;
 					context->surface.Configure(&cfg);
 					context->resolution = res;