skia2/tests/GrRenderTaskClusterTest.cpp

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/*
* 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 "src/gpu/ganesh/mock/GrMockRenderTask.h"
#include "src/gpu/ganesh/mock/GrMockSurfaceProxy.h"
#include "tests/Test.h"
typedef void (*CreateGraphPF)(SkTArray<sk_sp<GrMockRenderTask>>* graph,
SkTArray<sk_sp<GrMockRenderTask>>* expected);
static void make_proxies(int count, SkTArray<sk_sp<GrSurfaceProxy>>* proxies) {
proxies->reset(count);
for (int i = 0; i < count; i++) {
auto name = SkStringPrintf("%c", 'A' + i);
proxies->at(i) = sk_make_sp<GrMockSurfaceProxy>(std::move(name), /*label=*/"");
}
}
static void make_tasks(int count, SkTArray<sk_sp<GrMockRenderTask>>* tasks) {
tasks->reset(count);
for (int i = 0; i < count; i++) {
tasks->at(i) = sk_make_sp<GrMockRenderTask>();
}
}
/*
* In: A1 B1 A2
* Out: B1 A1 A2
*/
static void create_graph0(SkTArray<sk_sp<GrMockRenderTask>>* graph,
SkTArray<sk_sp<GrMockRenderTask>>* expected) {
SkTArray<sk_sp<GrSurfaceProxy>> proxies;
make_proxies(2, &proxies);
make_tasks(3, graph);
graph->at(0)->addTarget(proxies[0]);
graph->at(1)->addTarget(proxies[1]);
graph->at(2)->addTarget(proxies[0]);
graph->at(2)->addDependency(graph->at(1).get());
expected->push_back(graph->at(1));
expected->push_back(graph->at(0));
expected->push_back(graph->at(2));
}
/*
* In: A1 B1 A2 C1 A3
* Out: B1 C1 A1 A2 A3
*/
static void create_graph1(SkTArray<sk_sp<GrMockRenderTask>>* graph,
SkTArray<sk_sp<GrMockRenderTask>>* expected) {
SkTArray<sk_sp<GrSurfaceProxy>> proxies;
make_proxies(3, &proxies);
make_tasks(5, graph);
graph->at(0)->addTarget(proxies[0]);
graph->at(1)->addTarget(proxies[1]);
graph->at(2)->addTarget(proxies[0]);
graph->at(3)->addTarget(proxies[2]);
graph->at(4)->addTarget(proxies[0]);
expected->push_back(graph->at(1));
expected->push_back(graph->at(3));
expected->push_back(graph->at(0));
expected->push_back(graph->at(2));
expected->push_back(graph->at(4));
}
/*
* In: A1 B1 A2.
* Srcs: A1->B1, B1->A2.
* Out: A1 B1 A2. Can't reorder.
*/
static void create_graph2(SkTArray<sk_sp<GrMockRenderTask>>* graph,
SkTArray<sk_sp<GrMockRenderTask>>* expected) {
SkTArray<sk_sp<GrSurfaceProxy>> proxies;
make_proxies(2, &proxies);
make_tasks(3, graph);
graph->at(0)->addTarget(proxies[0]);
graph->at(1)->addTarget(proxies[1]);
graph->at(2)->addTarget(proxies[0]);
graph->at(1)->addDependency(graph->at(0).get());
graph->at(2)->addDependency(graph->at(1).get());
// expected is empty. Can't reorder.
}
/*
* Write-after-read case.
* In: A1 B1 A2 B2
* Srcs: A1->B1, A2->B2
* Used: B1(A), B2(A)
* Out: Can't reorder.
*/
static void create_graph3(SkTArray<sk_sp<GrMockRenderTask>>* graph,
SkTArray<sk_sp<GrMockRenderTask>>* expected) {
SkTArray<sk_sp<GrSurfaceProxy>> proxies;
make_proxies(2, &proxies);
make_tasks(4, graph);
graph->at(0)->addTarget(proxies[0]);
graph->at(1)->addTarget(proxies[1]);
graph->at(2)->addTarget(proxies[0]);
graph->at(3)->addTarget(proxies[1]);
graph->at(1)->addDependency(graph->at(0).get());
graph->at(3)->addDependency(graph->at(2).get());
graph->at(1)->addUsed(proxies[0]);
graph->at(3)->addUsed(proxies[0]);
// expected is empty. Can't reorder.
}
DEF_TEST(GrRenderTaskCluster, reporter) {
CreateGraphPF tests[] = {
create_graph0,
create_graph1,
create_graph2,
create_graph3
};
for (size_t i = 0; i < SK_ARRAY_COUNT(tests); ++i) {
SkTArray<sk_sp<GrMockRenderTask>> graph;
SkTArray<sk_sp<GrMockRenderTask>> expectedOutput;
(tests[i])(&graph, &expectedOutput);
SkTInternalLList<GrRenderTask> llist;
// TODO: Why does Span not want to convert from sk_sp<GrMockRenderTask> to
// `const sk_sp<GrRenderTask>`?
SkSpan<const sk_sp<GrRenderTask>> graphSpan(
reinterpret_cast<sk_sp<GrRenderTask>*>(graph.data()), graph.count());
bool actualResult = GrClusterRenderTasks(graphSpan, &llist);
if (expectedOutput.empty()) {
REPORTER_ASSERT(reporter, !actualResult);
} else {
REPORTER_ASSERT(reporter, actualResult);
// SkTInternalLList::countEntries is debug-only and these tests run in release.
int newCount = 0;
for ([[maybe_unused]] GrRenderTask* t : llist) {
newCount++;
}
REPORTER_ASSERT(reporter, newCount == expectedOutput.count());
int j = 0;
for (GrRenderTask* n : llist) {
REPORTER_ASSERT(reporter, n == expectedOutput[j++].get());
}
}
//SkDEBUGCODE(print(graph);)
}
}