chromium/third_party/skia/src/gpu/ganesh/GrRenderTaskCluster.cpp

/*
 * Copyright 2021 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "src/gpu/ganesh/GrRenderTaskCluster.h"

#include "include/core/SkRefCnt.h"
#include "include/core/SkString.h"
#include "include/core/SkTypes.h"
#include "src/base/SkTInternalLList.h"
#include "src/core/SkTHash.h"
#include "src/gpu/ganesh/GrRenderTask.h"
#include "src/gpu/ganesh/GrSurfaceProxy.h"

usingnamespaceskia_private;

// Uncomment to get lots of logging.
#define CLUSTER_DEBUGF …

static GrSurfaceProxy* first_target(GrRenderTask* task) { … }

#ifdef SK_DEBUG
[[maybe_unused]] static SkString describe_task(GrRenderTask* t) { … }

[[maybe_unused]] static SkString describe_tasks(SkSpan<const sk_sp<GrRenderTask>> collection) { … }

[[maybe_unused]] static SkString describe_tasks(const SkTInternalLList<GrRenderTask>& collection) { … }

static void validate(SkSpan<const sk_sp<GrRenderTask>> input,
                     const SkTInternalLList<GrRenderTask>& llist) { … }

#endif  // SK_DEBUG

// Returns whether `dependee` is a formal dependent or if it uses a surface `depender` targets.
static bool depends_on(GrRenderTask* depender, GrRenderTask* dependee) { … }

// Returns whether reordering occurred.
static bool task_cluster_visit(GrRenderTask* task, SkTInternalLList<GrRenderTask>* llist,
                               THashMap<GrSurfaceProxy*, GrRenderTask*>* lastTaskMap) { … }

bool GrClusterRenderTasks(SkSpan<const sk_sp<GrRenderTask>> input,
                          SkTInternalLList<GrRenderTask>* llist) { … }

#undef CLUSTER_DEBUGF