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98ba76af00
This CL adds an API to import a dma-buf into Dawn as a WGPUTexture. We also add a descriptor type enum to the base ExternalImageDescriptor struct. This is because all memory import code (e.g. MemoryService, Texture::CreateFromExternal) takes the a base ExternalImageDescriptor as a parameter. The dma-buf external memory and image services, however, will need to downcast to ExternalImageDescriptorDmaBuf to access import parameters like stride. Explicitly adding a type enum will let us more safely verify the type before downcasting. BUG=chromium:996470 Change-Id: I2d9883a15e9059a91f2c7bdb7a96d74373e18c56 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13782 Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Brian Ho <hob@chromium.org>
125 lines
4.9 KiB
C++
125 lines
4.9 KiB
C++
// Copyright 2019 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// VulkanBackend.cpp: contains the definition of symbols exported by VulkanBackend.h so that they
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// can be compiled twice: once export (shared library), once not exported (static library)
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// Include vulkan_platform.h before VulkanBackend.h includes vulkan.h so that we use our version
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// of the non-dispatchable handles.
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#include "common/vulkan_platform.h"
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#include "dawn_native/VulkanBackend.h"
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#include "common/SwapChainUtils.h"
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#include "dawn_native/vulkan/DeviceVk.h"
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#include "dawn_native/vulkan/NativeSwapChainImplVk.h"
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#include "dawn_native/vulkan/TextureVk.h"
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namespace dawn_native { namespace vulkan {
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VkInstance GetInstance(WGPUDevice device) {
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Device* backendDevice = reinterpret_cast<Device*>(device);
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return backendDevice->GetVkInstance();
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}
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DAWN_NATIVE_EXPORT PFN_vkVoidFunction GetInstanceProcAddr(WGPUDevice device,
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const char* pName) {
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Device* backendDevice = reinterpret_cast<Device*>(device);
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return (*backendDevice->fn.GetInstanceProcAddr)(backendDevice->GetVkInstance(), pName);
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}
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// Explicitly export this function because it uses the "native" type for surfaces while the
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// header as seen in this file uses the wrapped type.
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DAWN_NATIVE_EXPORT DawnSwapChainImplementation
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CreateNativeSwapChainImpl(WGPUDevice device, VkSurfaceKHRNative surfaceNative) {
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Device* backendDevice = reinterpret_cast<Device*>(device);
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VkSurfaceKHR surface = VkSurfaceKHR::CreateFromHandle(surfaceNative);
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DawnSwapChainImplementation impl;
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impl = CreateSwapChainImplementation(new NativeSwapChainImpl(backendDevice, surface));
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impl.textureUsage = WGPUTextureUsage_Present;
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return impl;
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}
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WGPUTextureFormat GetNativeSwapChainPreferredFormat(
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const DawnSwapChainImplementation* swapChain) {
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NativeSwapChainImpl* impl = reinterpret_cast<NativeSwapChainImpl*>(swapChain->userData);
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return static_cast<WGPUTextureFormat>(impl->GetPreferredFormat());
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}
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#ifdef DAWN_PLATFORM_LINUX
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ExternalImageDescriptor::ExternalImageDescriptor(ExternalImageDescriptorType type)
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: type(type) {
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}
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ExternalImageDescriptorFD::ExternalImageDescriptorFD(ExternalImageDescriptorType type)
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: ExternalImageDescriptor(type) {
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}
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ExternalImageDescriptorOpaqueFD::ExternalImageDescriptorOpaqueFD()
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: ExternalImageDescriptorFD(ExternalImageDescriptorType::OpaqueFD) {
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}
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ExternalImageDescriptorDmaBuf::ExternalImageDescriptorDmaBuf()
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: ExternalImageDescriptorFD(ExternalImageDescriptorType::DmaBuf) {
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}
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// TODO(hob): Remove this once we switch over to WrapVulkanImage in Chromium.
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WGPUTexture WrapVulkanImageOpaqueFD(WGPUDevice cDevice,
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const ExternalImageDescriptorOpaqueFD* descriptor) {
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Device* device = reinterpret_cast<Device*>(cDevice);
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TextureBase* texture = device->CreateTextureWrappingVulkanImage(
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descriptor, descriptor->memoryFD, descriptor->waitFDs);
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return reinterpret_cast<WGPUTexture>(texture);
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}
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int ExportSignalSemaphoreOpaqueFD(WGPUDevice cDevice, WGPUTexture cTexture) {
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Device* device = reinterpret_cast<Device*>(cDevice);
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Texture* texture = reinterpret_cast<Texture*>(cTexture);
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if (!texture) {
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return -1;
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}
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ExternalSemaphoreHandle outHandle;
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if (device->ConsumedError(device->SignalAndExportExternalTexture(texture, &outHandle))) {
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return -1;
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}
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return outHandle;
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}
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WGPUTexture WrapVulkanImage(WGPUDevice cDevice, const ExternalImageDescriptor* descriptor) {
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Device* device = reinterpret_cast<Device*>(cDevice);
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switch (descriptor->type) {
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case ExternalImageDescriptorType::OpaqueFD:
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case ExternalImageDescriptorType::DmaBuf: {
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const ExternalImageDescriptorFD* fdDescriptor =
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static_cast<const ExternalImageDescriptorFD*>(descriptor);
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TextureBase* texture = device->CreateTextureWrappingVulkanImage(
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descriptor, fdDescriptor->memoryFD, fdDescriptor->waitFDs);
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return reinterpret_cast<WGPUTexture>(texture);
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}
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default:
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return nullptr;
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}
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}
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#endif
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}} // namespace dawn_native::vulkan
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