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// Copyright 2019 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.
// VulkanBackend.cpp: contains the definition of symbols exported by VulkanBackend.h so that they
// can be compiled twice: once export (shared library), once not exported (static library)
// Include vulkan_platform.h before VulkanBackend.h includes vulkan.h so that we use our version
// of the non-dispatchable handles.
#include "common/vulkan_platform.h"
#include "dawn_native/VulkanBackend.h"
#include "common/SwapChainUtils.h"
#include "dawn_native/vulkan/DeviceVk.h"
#include "dawn_native/vulkan/NativeSwapChainImplVk.h"
#include "dawn_native/vulkan/TextureVk.h"
namespace dawn_native { namespace vulkan {
VkInstance GetInstance(WGPUDevice device) {
Device* backendDevice = reinterpret_cast<Device*>(device);
return backendDevice->GetVkInstance();
}
DAWN_NATIVE_EXPORT PFN_vkVoidFunction GetInstanceProcAddr(WGPUDevice device,
const char* pName) {
Device* backendDevice = reinterpret_cast<Device*>(device);
return (*backendDevice->fn.GetInstanceProcAddr)(backendDevice->GetVkInstance(), pName);
}
// Explicitly export this function because it uses the "native" type for surfaces while the
// header as seen in this file uses the wrapped type.
DAWN_NATIVE_EXPORT DawnSwapChainImplementation
CreateNativeSwapChainImpl(WGPUDevice device, ::VkSurfaceKHR surfaceNative) {
Device* backendDevice = reinterpret_cast<Device*>(device);
VkSurfaceKHR surface = VkSurfaceKHR::CreateFromHandle(surfaceNative);
DawnSwapChainImplementation impl;
impl = CreateSwapChainImplementation(new NativeSwapChainImpl(backendDevice, surface));
impl.textureUsage = WGPUTextureUsage_Present;
return impl;
}
WGPUTextureFormat GetNativeSwapChainPreferredFormat(
const DawnSwapChainImplementation* swapChain) {
NativeSwapChainImpl* impl = reinterpret_cast<NativeSwapChainImpl*>(swapChain->userData);
return static_cast<WGPUTextureFormat>(impl->GetPreferredFormat());
}
#if defined(DAWN_PLATFORM_LINUX)
ExternalImageDescriptorOpaqueFD::ExternalImageDescriptorOpaqueFD()
: ExternalImageDescriptorFD(ExternalImageType::OpaqueFD) {
}
ExternalImageDescriptorDmaBuf::ExternalImageDescriptorDmaBuf()
: ExternalImageDescriptorFD(ExternalImageType::DmaBuf) {
}
ExternalImageExportInfoOpaqueFD::ExternalImageExportInfoOpaqueFD()
: ExternalImageExportInfoFD(ExternalImageType::OpaqueFD) {
}
ExternalImageExportInfoDmaBuf::ExternalImageExportInfoDmaBuf()
: ExternalImageExportInfoFD(ExternalImageType::DmaBuf) {
}
int ExportSignalSemaphoreOpaqueFD(WGPUDevice cDevice, WGPUTexture cTexture) {
// Doesn't actually matter if we use OpaqueFD or DmaBuf since these paths are the same right
// now. This function will be removed.
Device* device = reinterpret_cast<Device*>(cDevice);
device->EmitDeprecationWarning(
"ExportSignalSemaphoreOpaqueFD is deprecated. Please use ExportVulkanImage instead.");
ExternalImageExportInfoOpaqueFD info;
if (!ExportVulkanImage(cTexture, VK_IMAGE_LAYOUT_GENERAL, &info)) {
return -1;
}
return info.semaphoreHandles[0];
}
#endif // DAWN_PLATFORM_LINUX
WGPUTexture WrapVulkanImage(WGPUDevice cDevice, const ExternalImageDescriptorVk* descriptor) {
#if defined(DAWN_PLATFORM_LINUX)
switch (descriptor->type) {
case ExternalImageType::OpaqueFD:
case ExternalImageType::DmaBuf: {
const ExternalImageDescriptorFD* fdDescriptor =
static_cast<const ExternalImageDescriptorFD*>(descriptor);
Device* device = reinterpret_cast<Device*>(cDevice);
TextureBase* texture = device->CreateTextureWrappingVulkanImage(
fdDescriptor, fdDescriptor->memoryFD, fdDescriptor->waitFDs);
return reinterpret_cast<WGPUTexture>(texture);
}
default:
return nullptr;
}
#else
return nullptr;
#endif // DAWN_PLATFORM_LINUX
}
bool ExportVulkanImage(WGPUTexture cTexture,
VkImageLayout desiredLayout,
ExternalImageExportInfoVk* info) {
if (cTexture == nullptr) {
return false;
}
#if defined(DAWN_PLATFORM_LINUX)
switch (info->type) {
case ExternalImageType::OpaqueFD:
case ExternalImageType::DmaBuf: {
Texture* texture = reinterpret_cast<Texture*>(cTexture);
Device* device = ToBackend(texture->GetDevice());
ExternalImageExportInfoFD* fdInfo = static_cast<ExternalImageExportInfoFD*>(info);
return device->SignalAndExportExternalTexture(texture, desiredLayout, fdInfo,
&fdInfo->semaphoreHandles);
}
default:
return false;
}
#else
return false;
#endif // DAWN_PLATFORM_LINUX
}
}} // namespace dawn_native::vulkan