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// Copyright 2020 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#if !defined(DAWN_ENABLE_BACKEND_METAL)
#error "utils_metal.mm requires the Metal backend to be enabled."
#endif // !defined(DAWN_ENABLE_BACKEND_METAL)
#include "webgpu/webgpu_glfw.h"
#import <QuartzCore/CAMetalLayer.h>
#include "GLFW/glfw3.h"
#include <cstdlib>
#define GLFW_EXPOSE_NATIVE_COCOA
#include "GLFW/glfw3native.h"
namespace wgpu::glfw {
std::unique_ptr<wgpu::ChainedStruct> SetupWindowAndGetSurfaceDescriptorCocoa(GLFWwindow* window) {
@autoreleasepool {
NSWindow* nsWindow = glfwGetCocoaWindow(window);
NSView* view = [nsWindow contentView];
// Create a CAMetalLayer that covers the whole window that will be passed to
// CreateSurface.
[view setWantsLayer:YES];
[view setLayer:[CAMetalLayer layer]];
// Use retina if the window was created with retina support.
[[view layer] setContentsScale:[nsWindow backingScaleFactor]];
std::unique_ptr<wgpu::SurfaceDescriptorFromMetalLayer> desc =
std::make_unique<wgpu::SurfaceDescriptorFromMetalLayer>();
desc->layer = [view layer];
return std::move(desc);
}
}
} // namespace wgpu::glfw