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 "sk_tool_utils.h"
9
10 #include "SkCanvas.h"
11 #include "SkFontMgr.h"
12 #include "SkGlyphRun.h"
13 #include "SkGraphics.h"
14 #include "SkPaint.h"
15 #include "SkPoint.h"
16 #include "SkRandomScalerContext.h"
17 #include "SkSurface.h"
18 #include "SkTextBlob.h"
19 #include "SkTypeface.h"
20
21 #ifdef SK_BUILD_FOR_WIN
22 #include "SkTypeface_win.h"
23 #endif
24
25 #include "Test.h"
26
27 #include "GrContext.h"
28 #include "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->contextPriv().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->contextPriv().setTextBlobCacheLimit_ForTesting(0);
62 }
63
64 SkImageInfo info = SkImageInfo::Make(kWidth, kHeight, kN32_SkColorType, kPremul_SkAlphaType);
65 auto surface(SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info, 0, &props));
66 REPORTER_ASSERT(reporter, surface);
67 if (!surface) {
68 return;
69 }
70
71 SkCanvas* canvas = surface->getCanvas();
72
73 sk_sp<SkFontMgr> fm(SkFontMgr::RefDefault());
74
75 int count = SkMin32(fm->countFamilies(), maxFamilies);
76
77 // make a ton of text
78 SkAutoTArray<uint16_t> text(maxTotalText);
79 for (int i = 0; i < maxTotalText; i++) {
80 text[i] = i % maxGlyphID;
81 }
82
83 // generate textblobs
84 SkTArray<sk_sp<SkTextBlob>> blobs;
85 for (int i = 0; i < count; i++) {
86 SkFont font;
87 font.setSize(48); // draw big glyphs to really stress the atlas
88
89 SkString familyName;
90 fm->getFamilyName(i, &familyName);
91 sk_sp<SkFontStyleSet> set(fm->createStyleSet(i));
92 for (int j = 0; j < set->count(); ++j) {
93 SkFontStyle fs;
94 set->getStyle(j, &fs, nullptr);
95
96 // We use a typeface which randomy returns unexpected mask formats to fuzz
97 sk_sp<SkTypeface> orig(set->createTypeface(j));
98 if (normal) {
99 font.setTypeface(orig);
100 } else {
101 font.setTypeface(sk_make_sp<SkRandomTypeface>(orig, SkPaint(), true));
102 }
103
104 SkTextBlobBuilder builder;
105 for (int aa = 0; aa < 2; aa++) {
106 for (int subpixel = 0; subpixel < 2; subpixel++) {
107 for (int lcd = 0; lcd < 2; lcd++) {
108 font.setEdging(SkFont::Edging::kAlias);
109 if (aa) {
110 font.setEdging(SkFont::Edging::kAntiAlias);
111 if (lcd) {
112 font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
113 }
114 }
115 font.setSubpixel(SkToBool(subpixel));
116 if (!SkToBool(lcd)) {
117 font.setSize(160);
118 }
119 const SkTextBlobBuilder::RunBuffer& run = builder.allocRun(font,
120 maxTotalText,
121 0, 0,
122 nullptr);
123 memcpy(run.glyphs, text.get(), maxTotalText * sizeof(uint16_t));
124 }
125 }
126 }
127 blobs.emplace_back(builder.make());
128 }
129 }
130
131 // create surface where LCD is impossible
132 info = SkImageInfo::MakeN32Premul(kWidth, kHeight);
133 SkSurfaceProps propsNoLCD(0, kUnknown_SkPixelGeometry);
134 auto surfaceNoLCD(canvas->makeSurface(info, &propsNoLCD));
135 REPORTER_ASSERT(reporter, surface);
136 if (!surface) {
137 return;
138 }
139
140 SkCanvas* canvasNoLCD = surfaceNoLCD->getCanvas();
141
142 // test redraw
143 draw(canvas, 2, blobs);
144 draw(canvasNoLCD, 2, blobs);
145
146 // test draw after free
147 context->freeGpuResources();
148 draw(canvas, 1, blobs);
149
150 context->freeGpuResources();
151 draw(canvasNoLCD, 1, blobs);
152
153 // test draw after abandon
154 context->abandonContext();
155 draw(canvas, 1, blobs);
156 }
157
DEF_GPUTEST_FOR_NULLGL_CONTEXT(TextBlobCache,reporter,ctxInfo)158 DEF_GPUTEST_FOR_NULLGL_CONTEXT(TextBlobCache, reporter, ctxInfo) {
159 text_blob_cache_inner(reporter, ctxInfo.grContext(), 1024, 256, 30, true, false);
160 }
161
DEF_GPUTEST_FOR_NULLGL_CONTEXT(TextBlobStressCache,reporter,ctxInfo)162 DEF_GPUTEST_FOR_NULLGL_CONTEXT(TextBlobStressCache, reporter, ctxInfo) {
163 text_blob_cache_inner(reporter, ctxInfo.grContext(), 256, 256, 10, true, true);
164 }
165
DEF_GPUTEST_FOR_NULLGL_CONTEXT(TextBlobAbnormal,reporter,ctxInfo)166 DEF_GPUTEST_FOR_NULLGL_CONTEXT(TextBlobAbnormal, reporter, ctxInfo) {
167 text_blob_cache_inner(reporter, ctxInfo.grContext(), 256, 256, 10, false, false);
168 }
169
DEF_GPUTEST_FOR_NULLGL_CONTEXT(TextBlobStressAbnormal,reporter,ctxInfo)170 DEF_GPUTEST_FOR_NULLGL_CONTEXT(TextBlobStressAbnormal, reporter, ctxInfo) {
171 text_blob_cache_inner(reporter, ctxInfo.grContext(), 256, 256, 10, false, true);
172 }
173