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// Copyright 2017 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.
#include "utils/BackendBinding.h"
#include "common/Compiler.h"
#include "GLFW/glfw3.h"
#if defined(DAWN_ENABLE_BACKEND_OPENGL)
# include "dawn_native/OpenGLBackend.h"
#endif // defined(DAWN_ENABLE_BACKEND_OPENGL)
namespace utils {
#if defined(DAWN_ENABLE_BACKEND_D3D12)
BackendBinding* CreateD3D12Binding(GLFWwindow* window, WGPUDevice device);
#endif
#if defined(DAWN_ENABLE_BACKEND_METAL)
BackendBinding* CreateMetalBinding(GLFWwindow* window, WGPUDevice device);
#endif
#if defined(DAWN_ENABLE_BACKEND_NULL)
BackendBinding* CreateNullBinding(GLFWwindow* window, WGPUDevice device);
#endif
#if defined(DAWN_ENABLE_BACKEND_OPENGL)
BackendBinding* CreateOpenGLBinding(GLFWwindow* window, WGPUDevice device);
#endif
#if defined(DAWN_ENABLE_BACKEND_VULKAN)
BackendBinding* CreateVulkanBinding(GLFWwindow* window, WGPUDevice device);
#endif
BackendBinding::BackendBinding(GLFWwindow* window, WGPUDevice device)
: mWindow(window), mDevice(device) {
}
void DiscoverAdapter(dawn_native::Instance* instance,
GLFWwindow* window,
wgpu::BackendType type) {
DAWN_UNUSED(type);
DAWN_UNUSED(window);
if (type == wgpu::BackendType::OpenGL || type == wgpu::BackendType::OpenGLES) {
#if defined(DAWN_ENABLE_BACKEND_OPENGL)
glfwMakeContextCurrent(window);
auto getProc = reinterpret_cast<void* (*)(const char*)>(glfwGetProcAddress);
if (type == wgpu::BackendType::OpenGL) {
dawn_native::opengl::AdapterDiscoveryOptions adapterOptions;
adapterOptions.getProc = getProc;
instance->DiscoverAdapters(&adapterOptions);
} else {
dawn_native::opengl::AdapterDiscoveryOptionsES adapterOptions;
adapterOptions.getProc = getProc;
instance->DiscoverAdapters(&adapterOptions);
}
#endif // defined(DAWN_ENABLE_BACKEND_OPENGL)
} else {
instance->DiscoverDefaultAdapters();
}
}
BackendBinding* CreateBinding(wgpu::BackendType type, GLFWwindow* window, WGPUDevice device) {
switch (type) {
#if defined(DAWN_ENABLE_BACKEND_D3D12)
case wgpu::BackendType::D3D12:
return CreateD3D12Binding(window, device);
#endif
#if defined(DAWN_ENABLE_BACKEND_METAL)
case wgpu::BackendType::Metal:
return CreateMetalBinding(window, device);
#endif
#if defined(DAWN_ENABLE_BACKEND_NULL)
case wgpu::BackendType::Null:
return CreateNullBinding(window, device);
#endif
#if defined(DAWN_ENABLE_BACKEND_DESKTOP_GL)
case wgpu::BackendType::OpenGL:
return CreateOpenGLBinding(window, device);
#endif
#if defined(DAWN_ENABLE_BACKEND_OPENGLES)
case wgpu::BackendType::OpenGLES:
return CreateOpenGLBinding(window, device);
#endif
#if defined(DAWN_ENABLE_BACKEND_VULKAN)
case wgpu::BackendType::Vulkan:
return CreateVulkanBinding(window, device);
#endif
default:
return nullptr;
}
}
} // namespace utils