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gpu / ipc / client / shared_image_interface_proxy.cc [blame]
// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "gpu/ipc/client/shared_image_interface_proxy.h"
#include <bit>
#include "base/logging.h"
#include "build/build_config.h"
#include "gpu/command_buffer/common/shared_image_usage.h"
#include "gpu/ipc/client/gpu_channel_host.h"
#include "gpu/ipc/common/command_buffer_id.h"
#include "mojo/public/cpp/bindings/sync_call_restrictions.h"
#include "ui/gfx/buffer_format_util.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/gpu_fence.h"
#if BUILDFLAG(IS_WIN)
#include "ui/gfx/win/d3d_shared_fence.h"
#endif
namespace gpu {
namespace {
bool SafeIncrementAndAlign(size_t aligned_value,
size_t increment,
size_t alignment,
size_t* result) {
base::CheckedNumeric<size_t> sum = aligned_value;
sum += increment;
// Taken from base::bits::Align.
// TODO(ericrk): Update base::bits::Align to handle CheckedNumeric.
DCHECK(std::has_single_bit(alignment));
sum = (sum + alignment - 1) & ~(alignment - 1);
return sum.AssignIfValid(result);
}
size_t GetRemainingSize(const base::MappedReadOnlyRegion& region,
size_t offset) {
if (offset > region.mapping.size())
return 0;
return region.mapping.size() - offset;
}
void* GetDataAddress(base::MappedReadOnlyRegion& region,
size_t offset,
size_t size) {
base::CheckedNumeric<size_t> safe_end = offset;
safe_end += size;
size_t end;
if (!safe_end.AssignIfValid(&end) || end > region.mapping.size())
return nullptr;
return region.mapping.GetMemoryAs<uint8_t>() + offset;
}
std::vector<SyncToken> GenerateDependenciesFromSyncToken(
SyncToken sync_token,
GpuChannelHost* const host) {
DCHECK(host);
std::vector<SyncToken> dependencies;
if (sync_token.HasData()) {
dependencies.push_back(sync_token);
SyncToken& new_token = dependencies.back();
if (!new_token.verified_flush()) {
// Only allow unverified sync tokens for the same channel.
DCHECK_EQ(sync_token.namespace_id(), gpu::CommandBufferNamespace::GPU_IO);
int sync_token_channel_id =
ChannelIdFromCommandBufferId(sync_token.command_buffer_id());
DCHECK_EQ(sync_token_channel_id, host->channel_id());
new_token.SetVerifyFlush();
}
}
return dependencies;
}
mojom::SharedImageInfoPtr CreateSharedImageInfo(
const SharedImageInfo& si_info) {
auto info = mojom::SharedImageInfo::New();
info->meta = si_info.meta;
info->debug_label = si_info.debug_label;
return info;
}
} // namespace
SharedImageInterfaceProxy::SharedImageInterfaceProxy(
GpuChannelHost* host,
int32_t route_id,
const gpu::SharedImageCapabilities& capabilities)
: host_(host), route_id_(route_id), capabilities_(capabilities) {}
SharedImageInterfaceProxy::~SharedImageInterfaceProxy() = default;
Mailbox SharedImageInterfaceProxy::CreateSharedImage(
const SharedImageInfo& si_info,
std::optional<SharedImagePoolId> pool_id) {
auto mailbox = Mailbox::Generate();
auto params = mojom::CreateSharedImageParams::New();
params->mailbox = mailbox;
params->si_info = CreateSharedImageInfo(si_info);
params->pool_id = std::move(pool_id);
{
base::AutoLock lock(lock_);
AddMailbox(mailbox);
// Note: we enqueue the IPC under the lock to guarantee monotonicity of the
// release ids as seen by the service.
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewCreateSharedImage(
std::move(params))),
/*sync_token_fences=*/{}, ++next_release_id_);
}
return mailbox;
}
Mailbox SharedImageInterfaceProxy::CreateSharedImage(
SharedImageInfo& si_info,
gfx::BufferUsage buffer_usage,
std::optional<SharedImagePoolId> pool_id,
gfx::GpuMemoryBufferHandle* handle_to_populate) {
// Create a GMB here first on IO thread via sync IPC. Then create a mailbox
// from it.
{
mojo::SyncCallRestrictions::ScopedAllowSyncCall allow_sync_call;
host_->CreateGpuMemoryBuffer(si_info.meta.size, si_info.meta.format,
buffer_usage, handle_to_populate);
}
if (handle_to_populate->is_null()) {
if (!host_->IsLost()) {
LOG(ERROR) << "Buffer handle is null. Not creating a mailbox from it.";
}
return Mailbox();
}
// Clear the external sampler prefs for shared memory case if it is set. Note
// that the |si_info.meta.format| is a reference, so any modifications to it
// will also be reflected at the place from which this method is called from.
// https://issues.chromium.org/339546249.
if (si_info.meta.format.PrefersExternalSampler() &&
(handle_to_populate->type ==
gfx::GpuMemoryBufferType::SHARED_MEMORY_BUFFER)) {
si_info.meta.format.ClearPrefersExternalSampler();
}
// Call existing SI method to create a SI from handle. Note that we are doing
// 2 IPCs here in this call. 1 to create a GMB above and then another to
// create a SI from it.
// TODO(crbug.com/40283107) : This can be optimize to just 1 IPC. Instead of
// sending a deferred IPC from SIIProxy after receiving the handle,
// GpuChannelMessageFilter::CreateGpuMemoryBuffer() call in service side can
// itself can post a task from IO thread to gpu main thread to create a
// mailbox from handle and then return the handle back to SIIProxy.
return CreateSharedImage(si_info, handle_to_populate->Clone(),
std::move(pool_id));
}
Mailbox SharedImageInterfaceProxy::CreateSharedImage(
const SharedImageInfo& si_info,
base::span<const uint8_t> pixel_data) {
// Pixel data's size must fit into a uint32_t to be sent in
// CreateSharedImageWithDataParams.
if (!base::IsValueInRangeForNumericType<uint32_t>(pixel_data.size())) {
LOG(ERROR)
<< "CreateSharedImage: SharedImage upload data overflows uint32_t";
return Mailbox();
}
// Hold the lock for the rest of this function, as we need to ensure that SHM
// reallocation / registration and the following use of that SHM via deferred
// message are not interrupted by a SHM allocation on another thread.
base::AutoLock lock(lock_);
bool done_with_shm;
size_t shm_offset;
if (!GetSHMForPixelData(pixel_data, &shm_offset, &done_with_shm)) {
LOG(ERROR) << "CreateSharedImage: Could not get SHM for data upload.";
return Mailbox();
}
auto mailbox = Mailbox::Generate();
auto params = mojom::CreateSharedImageWithDataParams::New();
params->mailbox = mailbox;
params->si_info = CreateSharedImageInfo(si_info);
params->pixel_data_offset = shm_offset;
params->pixel_data_size = pixel_data.size();
params->done_with_shm = done_with_shm;
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewCreateSharedImageWithData(
std::move(params))),
/*sync_token_fences=*/{}, ++next_release_id_);
AddMailbox(mailbox);
return mailbox;
}
Mailbox SharedImageInterfaceProxy::CreateSharedImage(
const SharedImageInfo& si_info,
gfx::GpuMemoryBufferHandle buffer_handle,
std::optional<SharedImagePoolId> pool_id) {
// TODO(kylechar): Verify buffer_handle works for size+format.
auto mailbox = Mailbox::Generate();
auto params = mojom::CreateSharedImageWithBufferParams::New();
params->mailbox = mailbox;
params->si_info = CreateSharedImageInfo(si_info);
params->buffer_handle = std::move(buffer_handle);
params->pool_id = std::move(pool_id);
base::AutoLock lock(lock_);
// Note: we enqueue and send the IPC under the lock to guarantee
// monotonicity of the release ids as seen by the service.
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewCreateSharedImageWithBuffer(
std::move(params))),
/*sync_token_fences=*/{}, ++next_release_id_);
host_->EnsureFlush(last_flush_id_);
AddMailbox(mailbox);
return mailbox;
}
void SharedImageInterfaceProxy::CopyToGpuMemoryBuffer(
const SyncToken& sync_token,
const Mailbox& mailbox) {
std::vector<SyncToken> dependencies =
GenerateDependenciesFromSyncToken(std::move(sync_token), host_);
{
base::AutoLock lock(lock_);
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewCopyToGpuMemoryBuffer(
mojom::CopyToGpuMemoryBufferParams::New(mailbox))),
std::move(dependencies), ++next_release_id_);
}
}
#if BUILDFLAG(IS_WIN)
void SharedImageInterfaceProxy::CopyToGpuMemoryBufferAsync(
const SyncToken& sync_token,
const Mailbox& mailbox,
base::OnceCallback<void(bool)> callback) {
base::AutoLock lock(lock_);
host_->CopyToGpuMemoryBufferAsync(
mailbox, GenerateDependenciesFromSyncToken(std::move(sync_token), host_),
++next_release_id_, std::move(callback));
}
void SharedImageInterfaceProxy::UpdateSharedImage(
const SyncToken& sync_token,
scoped_refptr<gfx::D3DSharedFence> d3d_shared_fence,
const Mailbox& mailbox) {
base::AutoLock lock(lock_);
std::vector<SyncToken> dependencies =
GenerateDependenciesFromSyncToken(std::move(sync_token), host_);
// Register fence in gpu process in first update.
auto [token_it, inserted] =
registered_fence_tokens_.insert(d3d_shared_fence->GetDXGIHandleToken());
if (inserted) {
gfx::GpuFenceHandle fence_handle;
fence_handle.Adopt(d3d_shared_fence->CloneSharedHandle());
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewRegisterDxgiFence(
mojom::RegisterDxgiFenceParams::New(
mailbox, d3d_shared_fence->GetDXGIHandleToken(),
std::move(fence_handle)))),
std::move(dependencies), /*release_count=*/0);
}
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewUpdateDxgiFence(
mojom::UpdateDxgiFenceParams::New(
mailbox, d3d_shared_fence->GetDXGIHandleToken(),
d3d_shared_fence->GetFenceValue()))),
std::move(dependencies), /*release_count=*/0);
}
void SharedImageInterfaceProxy::CopyNativeGmbToSharedMemorySync(
gfx::GpuMemoryBufferHandle buffer_handle,
base::UnsafeSharedMemoryRegion memory_region,
bool* status) {
mojo::SyncCallRestrictions::ScopedAllowSyncCall allow_sync_call;
host_->CopyNativeGmbToSharedMemorySync(std::move(buffer_handle),
std::move(memory_region), status);
}
void SharedImageInterfaceProxy::CopyNativeGmbToSharedMemoryAsync(
gfx::GpuMemoryBufferHandle buffer_handle,
base::UnsafeSharedMemoryRegion memory_region,
base::OnceCallback<void(bool)> callback) {
host_->CopyNativeGmbToSharedMemoryAsync(
std::move(buffer_handle), std::move(memory_region), std::move(callback));
}
bool SharedImageInterfaceProxy::IsConnected() {
return host_->IsConnected();
}
#endif // BUILDFLAG(IS_WIN)
void SharedImageInterfaceProxy::UpdateSharedImage(const SyncToken& sync_token,
const Mailbox& mailbox) {
UpdateSharedImage(sync_token, std::unique_ptr<gfx::GpuFence>(), mailbox);
}
void SharedImageInterfaceProxy::UpdateSharedImage(
const SyncToken& sync_token,
std::unique_ptr<gfx::GpuFence> acquire_fence,
const Mailbox& mailbox) {
// If there is a valid SyncToken, there should not be any GpuFence.
if (sync_token.HasData())
DCHECK(!acquire_fence);
std::vector<SyncToken> dependencies =
GenerateDependenciesFromSyncToken(std::move(sync_token), host_);
{
base::AutoLock lock(lock_);
gfx::GpuFenceHandle acquire_fence_handle;
if (acquire_fence)
acquire_fence_handle = acquire_fence->GetGpuFenceHandle().Clone();
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewUpdateSharedImage(
mojom::UpdateSharedImageParams::New(
mailbox, std::move(acquire_fence_handle)))),
std::move(dependencies), ++next_release_id_);
}
}
void SharedImageInterfaceProxy::DestroySharedImage(const SyncToken& sync_token,
const Mailbox& mailbox) {
std::vector<SyncToken> dependencies =
GenerateDependenciesFromSyncToken(std::move(sync_token), host_);
{
base::AutoLock lock(lock_);
auto it = mailbox_infos_.find(mailbox);
CHECK(it != mailbox_infos_.end());
auto& info = it->second;
CHECK_GT(info.ref_count, 0);
if (--info.ref_count == 0) {
info.destruction_sync_tokens.insert(info.destruction_sync_tokens.end(),
dependencies.begin(),
dependencies.end());
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewDestroySharedImage(
mailbox)),
std::move(info.destruction_sync_tokens), /*release_count=*/0);
mailbox_infos_.erase(it);
} else if (!dependencies.empty()) {
constexpr size_t kMaxSyncTokens = 4;
// Avoid accumulating too many SyncTokens in case where client
// continiously adds and removes refs, but never reaches the zero. This
// will ensure that all subsequent calls (including DestroySharedImage)
// are happening after sync tokens are released.
// We flush only old SyncTokens here, as they are more likely to pass
// already, to reduce potential stalls.
if (info.destruction_sync_tokens.size() > kMaxSyncTokens) {
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewNop(0)),
std::move(info.destruction_sync_tokens), /*release_count=*/0);
info.destruction_sync_tokens.clear();
}
info.destruction_sync_tokens.insert(info.destruction_sync_tokens.end(),
dependencies.begin(),
dependencies.end());
}
}
}
SyncToken SharedImageInterfaceProxy::GenVerifiedSyncToken() {
SyncToken sync_token = GenUnverifiedSyncToken();
VerifySyncToken(sync_token);
return sync_token;
}
SyncToken SharedImageInterfaceProxy::GenUnverifiedSyncToken() {
base::AutoLock lock(lock_);
return SyncToken(
CommandBufferNamespace::GPU_IO,
CommandBufferIdFromChannelAndRoute(host_->channel_id(), route_id_),
next_release_id_);
}
void SharedImageInterfaceProxy::VerifySyncToken(SyncToken& sync_token) {
// Force a synchronous IPC to validate sync token.
host_->VerifyFlush(UINT32_MAX);
sync_token.SetVerifyFlush();
}
void SharedImageInterfaceProxy::WaitSyncToken(const SyncToken& sync_token) {
if (!sync_token.HasData())
return;
std::vector<SyncToken> dependencies =
GenerateDependenciesFromSyncToken(std::move(sync_token), host_);
{
base::AutoLock lock(lock_);
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewNop(0)),
std::move(dependencies), /*release_count=*/0);
}
}
void SharedImageInterfaceProxy::Flush() {
base::AutoLock lock(lock_);
host_->EnsureFlush(last_flush_id_);
}
bool SharedImageInterfaceProxy::GetSHMForPixelData(
base::span<const uint8_t> pixel_data,
size_t* shm_offset,
bool* done_with_shm) {
const size_t kUploadBufferSize = 1 * 1024 * 1024; // 1MB
*shm_offset = 0;
*done_with_shm = false;
lock_.AssertAcquired();
if (!upload_buffer_.IsValid() ||
GetRemainingSize(upload_buffer_, upload_buffer_offset_) <
pixel_data.size()) {
size_t size_to_alloc = std::max(kUploadBufferSize, pixel_data.size());
auto shm = base::ReadOnlySharedMemoryRegion::Create(size_to_alloc);
if (!shm.IsValid())
return false;
// Duplicate the buffer for sharing to the GPU process.
base::ReadOnlySharedMemoryRegion readonly_shm = shm.region.Duplicate();
if (!readonly_shm.IsValid())
return false;
// Share the SHM to the GPU process. In order to ensure that any deferred
// messages which rely on the previous SHM have a chance to execute before
// it is replaced, send this message in the deferred queue.
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewRegisterUploadBuffer(
std::move(readonly_shm))),
/*sync_token_fences=*/{}, /*release_count=*/0);
host_->EnsureFlush(last_flush_id_);
upload_buffer_ = std::move(shm);
upload_buffer_offset_ = 0;
}
// We now have an |upload_buffer_| that fits our data.
void* target =
GetDataAddress(upload_buffer_, upload_buffer_offset_, pixel_data.size());
DCHECK(target);
memcpy(target, pixel_data.data(), pixel_data.size());
*shm_offset = upload_buffer_offset_;
// Now that we've successfully used up a portion of our buffer, increase our
// |upload_buffer_offset_|. If our |upload_buffer_offset_| is at the end (or
// past the end with rounding), we discard the current buffer. We'll allocate
// a new buffer the next time we enter this function.
bool discard_buffer = false;
if (SafeIncrementAndAlign(upload_buffer_offset_, pixel_data.size(),
4 /* alignment */, &upload_buffer_offset_)) {
discard_buffer =
GetRemainingSize(upload_buffer_, upload_buffer_offset_) == 0;
} else {
discard_buffer = true;
}
if (discard_buffer) {
*done_with_shm = true;
upload_buffer_ = base::MappedReadOnlyRegion();
upload_buffer_offset_ = 0;
}
return true;
}
SharedImageInterfaceProxy::SwapChainMailboxes
SharedImageInterfaceProxy::CreateSwapChain(viz::SharedImageFormat format,
const gfx::Size& size,
const gfx::ColorSpace& color_space,
GrSurfaceOrigin surface_origin,
SkAlphaType alpha_type,
gpu::SharedImageUsageSet usage) {
#if BUILDFLAG(IS_WIN)
const SwapChainMailboxes mailboxes = {Mailbox::Generate(),
Mailbox::Generate()};
auto params = mojom::CreateSwapChainParams::New();
params->front_buffer_mailbox = mailboxes.front_buffer;
params->back_buffer_mailbox = mailboxes.back_buffer;
params->format = format;
params->size = size;
params->color_space = color_space;
params->usage = uint32_t(usage);
params->surface_origin = surface_origin;
params->alpha_type = alpha_type;
{
base::AutoLock lock(lock_);
AddMailbox(mailboxes.front_buffer);
AddMailbox(mailboxes.back_buffer);
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewCreateSwapChain(
std::move(params))),
/*sync_token_fences=*/{}, ++next_release_id_);
}
return mailboxes;
#else
NOTREACHED();
#endif // BUILDFLAG(IS_WIN)
}
void SharedImageInterfaceProxy::PresentSwapChain(const SyncToken& sync_token,
const Mailbox& mailbox) {
#if BUILDFLAG(IS_WIN)
std::vector<SyncToken> dependencies =
GenerateDependenciesFromSyncToken(std::move(sync_token), host_);
{
base::AutoLock lock(lock_);
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewPresentSwapChain(
mojom::PresentSwapChainParams::New(mailbox))),
std::move(dependencies), ++next_release_id_);
host_->EnsureFlush(last_flush_id_);
}
#else
NOTREACHED();
#endif // BUILDFLAG(IS_WIN)
}
#if BUILDFLAG(IS_FUCHSIA)
void SharedImageInterfaceProxy::RegisterSysmemBufferCollection(
zx::eventpair service_handle,
zx::channel sysmem_token,
const viz::SharedImageFormat& format,
gfx::BufferUsage usage,
bool register_with_image_pipe) {
host_->GetGpuChannel().RegisterSysmemBufferCollection(
mojo::PlatformHandle(std::move(service_handle)),
mojo::PlatformHandle(std::move(sysmem_token)), format, usage,
register_with_image_pipe);
}
#endif // BUILDFLAG(IS_FUCHSIA)
scoped_refptr<gfx::NativePixmap> SharedImageInterfaceProxy::GetNativePixmap(
const gpu::Mailbox& mailbox) {
// Clients outside of the GPU process cannot obtain the backing NativePixmap
// for SharedImages.
return nullptr;
}
void SharedImageInterfaceProxy::AddReferenceToSharedImage(
const SyncToken& sync_token,
const Mailbox& mailbox) {
std::vector<SyncToken> dependencies =
GenerateDependenciesFromSyncToken(std::move(sync_token), host_);
{
base::AutoLock lock(lock_);
if (AddMailboxOrAddReference(mailbox)) {
// Note: we enqueue the IPC under the lock to guarantee monotonicity of
// the release ids as seen by the service.
last_flush_id_ = host_->EnqueueDeferredMessage(
mojom::DeferredRequestParams::NewSharedImageRequest(
mojom::DeferredSharedImageRequest::NewAddReferenceToSharedImage(
mojom::AddReferenceToSharedImageParams::New(mailbox))),
std::move(dependencies), ++next_release_id_);
}
}
}
void SharedImageInterfaceProxy::AddMailbox(const Mailbox& mailbox) {
bool added = AddMailboxOrAddReference(mailbox);
CHECK(added);
}
bool SharedImageInterfaceProxy::AddMailboxOrAddReference(
const Mailbox& mailbox) {
lock_.AssertAcquired();
auto& info = mailbox_infos_[mailbox];
info.ref_count++;
return info.ref_count == 1;
}
void SharedImageInterfaceProxy::NotifyMailboxAdded(
const Mailbox& mailbox,
gpu::SharedImageUsageSet usage) {
base::AutoLock lock(lock_);
AddMailbox(mailbox);
}
SharedImageInterfaceProxy::SharedImageRefData::SharedImageRefData() = default;
SharedImageInterfaceProxy::SharedImageRefData::~SharedImageRefData() = default;
SharedImageInterfaceProxy::SharedImageRefData::SharedImageRefData(
SharedImageRefData&&) = default;
SharedImageInterfaceProxy::SharedImageRefData&
SharedImageInterfaceProxy::SharedImageRefData::operator=(SharedImageRefData&&) =
default;
} // namespace gpu