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1 /*
2  * Copyright 2019 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "tests/Test.h"
9 
10 #include <chrono>
11 #include "include/core/SkCanvas.h"
12 #include "include/core/SkSurface.h"
13 #include "include/gpu/GrDirectContext.h"
14 #include "src/gpu/GrDirectContextPriv.h"
15 #include "src/gpu/GrGpu.h"
16 
17 using namespace sk_gpu_test;
18 
testing_finished_proc(void * ctx)19 static void testing_finished_proc(void* ctx) {
20     int* count = (int*)ctx;
21     *count += 1;
22 }
23 
busy_wait_for_callback(int * count,int expectedValue,GrDirectContext * dContext,skiatest::Reporter * reporter)24 static void busy_wait_for_callback(int* count, int expectedValue, GrDirectContext* dContext,
25                                    skiatest::Reporter* reporter) {
26     // Busy waiting should detect that the work is done.
27     auto begin = std::chrono::steady_clock::now();
28     auto end = begin;
29     do {
30         dContext->checkAsyncWorkCompletion();
31         end = std::chrono::steady_clock::now();
32     } while (*count != expectedValue && (end - begin) < std::chrono::seconds(1));
33     if (*count != expectedValue) {
34         ERRORF(reporter, "Expected count failed to reach %d within 1 second of busy waiting.",
35                expectedValue);
36     }
37 }
38 
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(FlushFinishedProcTest,reporter,ctxInfo)39 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(FlushFinishedProcTest, reporter, ctxInfo) {
40     auto dContext = ctxInfo.directContext();
41 
42     SkImageInfo info =
43             SkImageInfo::Make(8, 8, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
44     sk_sp<SkSurface> surface = SkSurface::MakeRenderTarget(dContext, SkBudgeted::kNo, info);
45     SkCanvas* canvas = surface->getCanvas();
46 
47     canvas->clear(SK_ColorGREEN);
48     auto image = surface->makeImageSnapshot();
49 
50     dContext->flush();
51     dContext->submit(true);
52 
53     int count = 0;
54 
55     GrFlushInfo flushInfoFinishedProc;
56     flushInfoFinishedProc.fFinishedProc = testing_finished_proc;
57     flushInfoFinishedProc.fFinishedContext = (void*)&count;
58     // There is no work on the surface so flushing may immediately call the finished proc.
59     surface->flush(flushInfoFinishedProc);
60     dContext->submit();
61     REPORTER_ASSERT(reporter, count == 0 || count == 1);
62     // Busy waiting should detect that the work is done.
63     busy_wait_for_callback(&count, 1, dContext, reporter);
64 
65     canvas->clear(SK_ColorRED);
66 
67     surface->flush(flushInfoFinishedProc);
68     dContext->submit();
69 
70     bool fenceSupport = dContext->priv().caps()->fenceSyncSupport();
71     bool expectAsyncCallback =
72             dContext->backend() == GrBackendApi::kVulkan ||
73             ((dContext->backend() == GrBackendApi::kOpenGL) && fenceSupport) ||
74             ((dContext->backend() == GrBackendApi::kMetal) && fenceSupport) ||
75             dContext->backend() == GrBackendApi::kDawn ||
76             dContext->backend() == GrBackendApi::kDirect3D;
77     if (expectAsyncCallback) {
78         // On Vulkan the command buffer we just submitted may or may not have finished immediately
79         // so the finish proc may not have been called.
80         REPORTER_ASSERT(reporter, count == 1 || count == 2);
81     } else {
82         REPORTER_ASSERT(reporter, count == 2);
83     }
84     dContext->flush();
85     dContext->submit(true);
86     REPORTER_ASSERT(reporter, count == 2);
87 
88     // Test flushing via the SkImage
89     canvas->drawImage(image, 0, 0);
90     image->flush(dContext, flushInfoFinishedProc);
91     dContext->submit();
92     if (expectAsyncCallback) {
93         // On Vulkan the command buffer we just submitted may or may not have finished immediately
94         // so the finish proc may not have been called.
95         REPORTER_ASSERT(reporter, count == 2 || count == 3);
96     } else {
97         REPORTER_ASSERT(reporter, count == 3);
98     }
99     dContext->flush();
100     dContext->submit(true);
101     REPORTER_ASSERT(reporter, count == 3);
102 
103     // Test flushing via the GrDirectContext
104     canvas->clear(SK_ColorBLUE);
105     dContext->flush(flushInfoFinishedProc);
106     dContext->submit();
107     if (expectAsyncCallback) {
108         // On Vulkan the command buffer we just submitted may or may not have finished immediately
109         // so the finish proc may not have been called.
110         REPORTER_ASSERT(reporter, count == 3 || count == 4);
111     } else {
112         REPORTER_ASSERT(reporter, count == 4);
113     }
114     dContext->flush();
115     dContext->submit(true);
116     REPORTER_ASSERT(reporter, count == 4);
117 
118     // There is no work on the surface so flushing may immediately call the finished proc.
119     dContext->flush(flushInfoFinishedProc);
120     dContext->submit();
121     REPORTER_ASSERT(reporter, count == 4 || count == 5);
122     busy_wait_for_callback(&count, 5, dContext, reporter);
123 
124     count = 0;
125     int count2 = 0;
126     canvas->clear(SK_ColorGREEN);
127     surface->flush(flushInfoFinishedProc);
128     dContext->submit();
129     // There is no work to be flushed here so this will return immediately, but make sure the
130     // finished call from this proc isn't called till the previous surface flush also is finished.
131     flushInfoFinishedProc.fFinishedContext = (void*)&count2;
132     dContext->flush(flushInfoFinishedProc);
133     dContext->submit();
134     REPORTER_ASSERT(reporter, count <= 1 && count2 <= count);
135 
136     dContext->flush();
137     dContext->submit(true);
138 
139     REPORTER_ASSERT(reporter, count == 1);
140     REPORTER_ASSERT(reporter, count == count2);
141 }
142 
143