1 /*
2 * Copyright 2015 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 "tools/ToolUtils.h"
9
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkFontMgr.h"
12 #include "include/core/SkGraphics.h"
13 #include "include/core/SkPaint.h"
14 #include "include/core/SkPoint.h"
15 #include "include/core/SkSurface.h"
16 #include "include/core/SkTextBlob.h"
17 #include "include/core/SkTypeface.h"
18 #include "src/core/SkGlyphRun.h"
19 #include "tools/fonts/RandomScalerContext.h"
20
21 #ifdef SK_BUILD_FOR_WIN
22 #include "include/ports/SkTypeface_win.h"
23 #endif
24
25 #include "tests/Test.h"
26
27 #include "include/gpu/GrContext.h"
28 #include "src/gpu/GrContextPriv.h"
29
draw(SkCanvas * canvas,int redraw,const SkTArray<sk_sp<SkTextBlob>> & blobs)30 static void draw(SkCanvas* canvas, int redraw, const SkTArray<sk_sp<SkTextBlob>>& blobs) {
31 int yOffset = 0;
32 for (int r = 0; r < redraw; r++) {
33 for (int i = 0; i < blobs.count(); i++) {
34 const auto& blob = blobs[i];
35 const SkRect& bounds = blob->bounds();
36 yOffset += SkScalarCeilToInt(bounds.height());
37 SkPaint paint;
38 canvas->drawTextBlob(blob, 0, SkIntToScalar(yOffset), paint);
39 }
40 }
41 }
42
43 static const int kWidth = 1024;
44 static const int kHeight = 768;
45
setup_always_evict_atlas(GrContext * context)46 static void setup_always_evict_atlas(GrContext* context) {
47 context->priv().getAtlasManager()->setAtlasSizesToMinimum_ForTesting();
48 }
49
50 // This test hammers the GPU textblobcache and font atlas
text_blob_cache_inner(skiatest::Reporter * reporter,GrContext * context,int maxTotalText,int maxGlyphID,int maxFamilies,bool normal,bool stressTest)51 static void text_blob_cache_inner(skiatest::Reporter* reporter, GrContext* context,
52 int maxTotalText, int maxGlyphID, int maxFamilies, bool normal,
53 bool stressTest) {
54 // setup surface
55 uint32_t flags = 0;
56 SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType);
57
58 // configure our context for maximum stressing of cache and atlas
59 if (stressTest) {
60 setup_always_evict_atlas(context);
61 context->priv().testingOnly_setTextBlobCacheLimit(0);
62 }
63
64 SkImageInfo info = SkImageInfo::Make(kWidth, kHeight, kRGBA_8888_SkColorType,
65 kPremul_SkAlphaType);
66 auto surface(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info, 0, &props));
67 REPORTER_ASSERT(reporter, surface);
68 if (!surface) {
69 return;
70 }
71
72 SkCanvas* canvas = surface->getCanvas();
73
74 sk_sp<SkFontMgr> fm(SkFontMgr::RefDefault());
75
76 int count = SkMin32(fm->countFamilies(), maxFamilies);
77
78 // make a ton of text
79 SkAutoTArray<uint16_t> text(maxTotalText);
80 for (int i = 0; i < maxTotalText; i++) {
81 text[i] = i % maxGlyphID;
82 }
83
84 // generate textblobs
85 SkTArray<sk_sp<SkTextBlob>> blobs;
86 for (int i = 0; i < count; i++) {
87 SkFont font;
88 font.setSize(48); // draw big glyphs to really stress the atlas
89
90 SkString familyName;
91 fm->getFamilyName(i, &familyName);
92 sk_sp<SkFontStyleSet> set(fm->createStyleSet(i));
93 for (int j = 0; j < set->count(); ++j) {
94 SkFontStyle fs;
95 set->getStyle(j, &fs, nullptr);
96
97 // We use a typeface which randomy returns unexpected mask formats to fuzz
98 sk_sp<SkTypeface> orig(set->createTypeface(j));
99 if (normal) {
100 font.setTypeface(orig);
101 } else {
102 font.setTypeface(sk_make_sp<SkRandomTypeface>(orig, SkPaint(), true));
103 }
104
105 SkTextBlobBuilder builder;
106 for (int aa = 0; aa < 2; aa++) {
107 for (int subpixel = 0; subpixel < 2; subpixel++) {
108 for (int lcd = 0; lcd < 2; lcd++) {
109 font.setEdging(SkFont::Edging::kAlias);
110 if (aa) {
111 font.setEdging(SkFont::Edging::kAntiAlias);
112 if (lcd) {
113 font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
114 }
115 }
116 font.setSubpixel(SkToBool(subpixel));
117 if (!SkToBool(lcd)) {
118 font.setSize(160);
119 }
120 const SkTextBlobBuilder::RunBuffer& run = builder.allocRun(font,
121 maxTotalText,
122 0, 0,
123 nullptr);
124 memcpy(run.glyphs, text.get(), maxTotalText * sizeof(uint16_t));
125 }
126 }
127 }
128 blobs.emplace_back(builder.make());
129 }
130 }
131
132 // create surface where LCD is impossible
133 info = SkImageInfo::Make(kWidth, kHeight, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
134 SkSurfaceProps propsNoLCD(0, kUnknown_SkPixelGeometry);
135 auto surfaceNoLCD(canvas->makeSurface(info, &propsNoLCD));
136 REPORTER_ASSERT(reporter, surface);
137 if (!surface) {
138 return;
139 }
140
141 SkCanvas* canvasNoLCD = surfaceNoLCD->getCanvas();
142
143 // test redraw
144 draw(canvas, 2, blobs);
145 draw(canvasNoLCD, 2, blobs);
146
147 // test draw after free
148 context->freeGpuResources();
149 draw(canvas, 1, blobs);
150
151 context->freeGpuResources();
152 draw(canvasNoLCD, 1, blobs);
153
154 // test draw after abandon
155 context->abandonContext();
156 draw(canvas, 1, blobs);
157 }
158
DEF_GPUTEST_FOR_MOCK_CONTEXT(TextBlobCache,reporter,ctxInfo)159 DEF_GPUTEST_FOR_MOCK_CONTEXT(TextBlobCache, reporter, ctxInfo) {
160 text_blob_cache_inner(reporter, ctxInfo.grContext(), 1024, 256, 30, true, false);
161 }
162
DEF_GPUTEST_FOR_MOCK_CONTEXT(TextBlobStressCache,reporter,ctxInfo)163 DEF_GPUTEST_FOR_MOCK_CONTEXT(TextBlobStressCache, reporter, ctxInfo) {
164 text_blob_cache_inner(reporter, ctxInfo.grContext(), 256, 256, 10, true, true);
165 }
166
DEF_GPUTEST_FOR_MOCK_CONTEXT(TextBlobAbnormal,reporter,ctxInfo)167 DEF_GPUTEST_FOR_MOCK_CONTEXT(TextBlobAbnormal, reporter, ctxInfo) {
168 text_blob_cache_inner(reporter, ctxInfo.grContext(), 256, 256, 10, false, false);
169 }
170
DEF_GPUTEST_FOR_MOCK_CONTEXT(TextBlobStressAbnormal,reporter,ctxInfo)171 DEF_GPUTEST_FOR_MOCK_CONTEXT(TextBlobStressAbnormal, reporter, ctxInfo) {
172 text_blob_cache_inner(reporter, ctxInfo.grContext(), 256, 256, 10, false, true);
173 }
174