1 /*
2 * Copyright 2022 Google LLC
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 "include/gpu/graphite/Context.h"
11 #include "include/gpu/graphite/Recorder.h"
12 #include "include/gpu/graphite/Recording.h"
13 #include "src/gpu/graphite/Buffer.h"
14 #include "src/gpu/graphite/RecorderPriv.h"
15 #include "src/gpu/graphite/UploadBufferManager.h"
16
17 namespace skgpu::graphite {
18
DEF_GRAPHITE_TEST_FOR_RENDERING_CONTEXTS(UploadBufferManagerTest,reporter,context)19 DEF_GRAPHITE_TEST_FOR_RENDERING_CONTEXTS(UploadBufferManagerTest, reporter, context) {
20 std::unique_ptr<Recorder> recorder = context->makeRecorder();
21 UploadBufferManager* bufferManager = recorder->priv().uploadBufferManager();
22
23 // The test source data.
24 char src[8] = {
25 1, 2, 3, 4,
26 5, 6, 7, 8,
27 };
28
29 // Test multiple small writes to a reused buffer.
30 auto [smWriter0, smBufferInfo0] = bufferManager->getUploadWriter(10, 1);
31 smWriter0.write(/*offset=*/0, src, /*srcRowBytes=*/4, /*dstRowBytes=*/3, /*trimRowBytes=*/3,
32 /*rowCount=*/2);
33 smWriter0.write(/*offset=*/6, src, /*srcRowBytes=*/4, /*dstRowBytes=*/2, /*trimRowBytes=*/2,
34 /*rowCount=*/2);
35
36 auto [smWriter1, smBufferInfo1] = bufferManager->getUploadWriter(4, 1);
37 smWriter1.write(/*offset=*/0, src, /*srcRowBytes=*/4, /*dstRowBytes=*/2, /*trimRowBytes=*/2,
38 /*rowCount=*/2);
39
40 REPORTER_ASSERT(reporter, smBufferInfo0.fBuffer == smBufferInfo1.fBuffer);
41 REPORTER_ASSERT(reporter, smBufferInfo0.fOffset == 0);
42 REPORTER_ASSERT(reporter, smBufferInfo1.fOffset >= 10);
43
44 // Test a large write, which should get its own dedicated buffer.
45 auto [lgWriter, lgBufferInfo] = bufferManager->getUploadWriter((64 << 10) + 1, 1);
46 lgWriter.write(/*offset=*/0, src, /*srcRowBytes=*/4, /*dstRowBytes=*/2, /*trimRowBytes=*/2,
47 /*rowCount=*/2);
48
49 REPORTER_ASSERT(reporter, lgBufferInfo.fBuffer != smBufferInfo0.fBuffer);
50 REPORTER_ASSERT(reporter, lgBufferInfo.fOffset == 0);
51 REPORTER_ASSERT(reporter, lgBufferInfo.fBuffer->isMapped());
52 const void* lgBufferMap = const_cast<Buffer*>(lgBufferInfo.fBuffer)->map();
53 const char expectedLgBufferMap[4] = {
54 1, 2,
55 5, 6,
56 };
57 REPORTER_ASSERT(reporter,
58 memcmp(lgBufferMap, expectedLgBufferMap, sizeof(expectedLgBufferMap)) == 0);
59
60 // Test another small write after the large write.
61 auto [smWriter2, smBufferInfo2] = bufferManager->getUploadWriter(2, 1);
62 smWriter2.write(/*offset=*/0, src, /*srcRowBytes=*/4, /*dstRowBytes=*/2, /*trimRowBytes=*/2,
63 /*rowCount=*/1);
64
65 REPORTER_ASSERT(reporter, smBufferInfo2.fBuffer == smBufferInfo0.fBuffer);
66 REPORTER_ASSERT(reporter, smBufferInfo2.fOffset >= 4 + smBufferInfo1.fOffset);
67
68 REPORTER_ASSERT(reporter, smBufferInfo0.fBuffer->isMapped());
69 const char* smBufferMap =
70 reinterpret_cast<const char*>(const_cast<Buffer*>(smBufferInfo0.fBuffer)->map());
71 // Each section of written data could be offset and aligned by GPU-required rules, so we can't
72 // easily validate the contents of the buffer in one go, and instead test at each of the three
73 // reported offsets.
74 const char expectedSmBuffer0[10] = { 1, 2, 3, 5, 6, 7, 1, 2, 5, 6 };
75 const char expectedSmBuffer1[4] = { 1, 2, 5, 6 };
76 const char expectedSmBuffer2[2] = { 1, 2};
77 REPORTER_ASSERT(reporter, memcmp(smBufferMap + smBufferInfo0.fOffset,
78 expectedSmBuffer0,
79 sizeof(expectedSmBuffer0)) == 0);
80 REPORTER_ASSERT(reporter, memcmp(smBufferMap + smBufferInfo1.fOffset,
81 expectedSmBuffer1,
82 sizeof(expectedSmBuffer1)) == 0);
83 REPORTER_ASSERT(reporter, memcmp(smBufferMap + smBufferInfo2.fOffset,
84 expectedSmBuffer1,
85 sizeof(expectedSmBuffer2)) == 0);
86
87 // Snap a Recording from the Recorder. This will transfer resources from the UploadBufferManager
88 // to the Recording.
89 auto recording = recorder->snap();
90
91 // Test writes with a required alignment.
92 auto [alWriter0, alBufferInfo0] = bufferManager->getUploadWriter(6, 4);
93 alWriter0.write(/*offset=*/0, src, /*srcRowBytes=*/4, /*dstRowBytes=*/3, /*trimRowBytes=*/3,
94 /*rowCount=*/2);
95
96 auto [alWriter1, alBufferInfo1] = bufferManager->getUploadWriter(2, 4);
97 alWriter1.write(/*offset=*/0, src, /*srcRowBytes=*/4, /*dstRowBytes=*/2, /*trimRowBytes=*/2,
98 /*rowCount=*/1);
99
100 // Should not share a buffer with earlier small writes, since we've transferred previously-
101 // allocated resources to the command buffer.
102 REPORTER_ASSERT(reporter, alBufferInfo0.fBuffer != smBufferInfo0.fBuffer);
103 REPORTER_ASSERT(reporter, alBufferInfo0.fBuffer == alBufferInfo1.fBuffer);
104 REPORTER_ASSERT(reporter, alBufferInfo0.fOffset == 0);
105 REPORTER_ASSERT(reporter, alBufferInfo1.fOffset == 8);
106
107 // From alWriter0.
108 const char expectedAlBufferMap0[6] = {
109 1, 2, 3,
110 5, 6, 7,
111 };
112 // From alWriter1.
113 const char expectedAlBufferMap1[2] = {
114 1, 2,
115 };
116
117 REPORTER_ASSERT(reporter, alBufferInfo0.fBuffer->isMapped());
118 const void* alBufferMap = const_cast<Buffer*>(alBufferInfo0.fBuffer)->map();
119 REPORTER_ASSERT(reporter,
120 memcmp(alBufferMap, expectedAlBufferMap0, sizeof(expectedAlBufferMap0)) == 0);
121
122 alBufferMap = SkTAddOffset<const void>(alBufferMap, 8);
123 REPORTER_ASSERT(reporter,
124 memcmp(alBufferMap, expectedAlBufferMap1, sizeof(expectedAlBufferMap1)) == 0);
125 }
126
127 } // namespace skgpu::graphite
128