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// 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.
#include "gpu/command_buffer/service/texture_owner.h"
#include <memory>
#include "base/atomic_sequence_num.h"
#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/task/single_thread_task_runner.h"
#include "base/trace_event/memory_dump_manager.h"
#include "gpu/command_buffer/service/image_reader_gl_owner.h"
#include "ui/gl/scoped_binders.h"
#include "ui/gl/scoped_make_current.h"
namespace gpu {
namespace {
// Generates process-unique IDs to use for tracing resources.
base::AtomicSequenceNumber g_next_texture_owner_tracing_id;
} // namespace
TextureOwner::TextureOwner(scoped_refptr<SharedContextState> context_state)
: base::RefCountedDeleteOnSequence<TextureOwner>(
base::SingleThreadTaskRunner::GetCurrentDefault()),
context_state_(std::move(context_state)),
task_runner_(base::SingleThreadTaskRunner::GetCurrentDefault()),
tracing_id_(g_next_texture_owner_tracing_id.GetNext()) {
DCHECK(context_state_);
context_state_->AddContextLostObserver(this);
base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
this, "TextureOwner", base::SingleThreadTaskRunner::GetCurrentDefault());
}
TextureOwner::TextureOwner()
: base::RefCountedDeleteOnSequence<TextureOwner>(
base::SingleThreadTaskRunner::GetCurrentDefault()),
task_runner_(base::SingleThreadTaskRunner::GetCurrentDefault()),
tracing_id_(g_next_texture_owner_tracing_id.GetNext()) {
base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
this, "TextureOwner", base::SingleThreadTaskRunner::GetCurrentDefault());
}
TextureOwner::~TextureOwner() {
base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider(
this);
std::optional<ui::ScopedMakeCurrent> scoped_make_current;
if (context_state_) {
if (!context_state_->IsCurrent(nullptr, /*needs_gl=*/true)) {
scoped_make_current.emplace(context_state_->context(),
context_state_->surface());
scoped_make_current->IsContextCurrent();
}
context_state_->RemoveContextLostObserver(this);
}
// Reset texture and context state here while the |context_state_| is current.
context_state_.reset();
}
// static
scoped_refptr<TextureOwner> TextureOwner::Create(
Mode mode,
scoped_refptr<SharedContextState> context_state,
scoped_refptr<RefCountedLock> drdc_lock,
TextureOwnerCodecType type_for_metrics) {
return new ImageReaderGLOwner(mode, std::move(context_state),
std::move(drdc_lock), type_for_metrics);
}
void TextureOwner::OnContextLost() {
ReleaseResources();
context_state_->RemoveContextLostObserver(this);
context_state_.reset();
}
} // namespace gpu
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