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| 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 #include "SkCanvas.h" |
| 10 #include "SkPaint.h" |
| 11 #include "SkPoint.h" |
| 12 #include "SkTextBlob.h" |
| 13 #include "SkFontMgr.h" |
| 14 #include "SkGraphics.h" |
| 15 #include "SkSurface.h" |
| 16 #include "SkTypeface.h" |
| 17 #include "../src/fonts/SkRandomScalerContext.h" |
| 18 |
| 19 #ifdef SK_BUILD_FOR_WIN |
| 20 #include "SkTypeface_win.h" |
| 21 #endif |
| 22 |
| 23 #include "Test.h" |
| 24 |
| 25 #if SK_SUPPORT_GPU |
| 26 #include "GrContextFactory.h" |
| 27 |
| 28 struct TextBlobWrapper { |
| 29 // This class assumes it 'owns' the textblob it wraps, and thus does not nee
d to take a ref |
| 30 explicit TextBlobWrapper(const SkTextBlob* blob) : fBlob(blob) {} |
| 31 TextBlobWrapper(const TextBlobWrapper& blob) : fBlob(SkRef(blob.fBlob.get())
) {} |
| 32 |
| 33 SkAutoTUnref<const SkTextBlob> fBlob; |
| 34 }; |
| 35 |
| 36 static void draw(SkCanvas* canvas, int redraw, const SkTArray<TextBlobWrapper>&
blobs) { |
| 37 int yOffset = 0; |
| 38 for (int r = 0; r < redraw; r++) { |
| 39 for (int i = 0; i < blobs.count(); i++) { |
| 40 const SkTextBlob* blob = blobs[i].fBlob.get(); |
| 41 const SkRect& bounds = blob->bounds(); |
| 42 yOffset += SkScalarCeilToInt(bounds.height()); |
| 43 SkPaint paint; |
| 44 canvas->drawTextBlob(blob, 0, SkIntToScalar(yOffset), paint); |
| 45 } |
| 46 } |
| 47 } |
| 48 |
| 49 static const int kWidth = 1024; |
| 50 static const int kHeight = 768; |
| 51 |
| 52 // This test hammers the GPU textblobcache and font atlas |
| 53 static void text_blob_cache_inner(skiatest::Reporter* reporter, GrContextFactory
* factory, |
| 54 int maxTotalText, int maxGlyphID, int maxFamil
ies, bool normal) { |
| 55 // setup surface |
| 56 uint32_t flags = 0; |
| 57 SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType); |
| 58 |
| 59 // We don't typically actually draw with this unittest |
| 60 GrContext* ctx = factory->get(GrContextFactory::kNull_GLContextType); |
| 61 SkImageInfo info = SkImageInfo::Make(kWidth, kHeight, kN32_SkColorType, kPre
mul_SkAlphaType); |
| 62 SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTarget(ctx, SkSurface::k
No_Budgeted, info, |
| 63 0, &props)); |
| 64 REPORTER_ASSERT(reporter, surface); |
| 65 if (!surface) { |
| 66 return; |
| 67 } |
| 68 |
| 69 SkCanvas* canvas = surface->getCanvas(); |
| 70 |
| 71 SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault()); |
| 72 |
| 73 int count = SkMin32(fm->countFamilies(), maxFamilies); |
| 74 |
| 75 // make a ton of text |
| 76 SkAutoTArray<uint16_t> text(maxTotalText); |
| 77 for (int i = 0; i < maxTotalText; i++) { |
| 78 text[i] = i % maxGlyphID; |
| 79 } |
| 80 |
| 81 // generate textblobs |
| 82 SkTArray<TextBlobWrapper> blobs; |
| 83 for (int i = 0; i < count; i++) { |
| 84 SkPaint paint; |
| 85 paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); |
| 86 paint.setTextSize(48); // draw big glyphs to really stress the atlas |
| 87 |
| 88 SkString familyName; |
| 89 fm->getFamilyName(i, &familyName); |
| 90 SkAutoTUnref<SkFontStyleSet> set(fm->createStyleSet(i)); |
| 91 for (int j = 0; j < set->count(); ++j) { |
| 92 SkFontStyle fs; |
| 93 set->getStyle(j, &fs, NULL); |
| 94 |
| 95 // We use a typeface which randomy returns unexpected mask formats t
o fuzz |
| 96 SkAutoTUnref<SkTypeface> orig(set->createTypeface(j)); |
| 97 if (normal) { |
| 98 paint.setTypeface(orig); |
| 99 } else { |
| 100 SkAutoTUnref<SkTypeface> typeface(SkNEW_ARGS(SkRandomTypeface, (
orig, paint, true))); |
| 101 paint.setTypeface(typeface); |
| 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 paint.setAntiAlias(SkToBool(aa)); |
| 109 paint.setSubpixelText(SkToBool(subpixel)); |
| 110 paint.setLCDRenderText(SkToBool(lcd)); |
| 111 if (!SkToBool(lcd)) { |
| 112 paint.setTextSize(160); |
| 113 } |
| 114 const SkTextBlobBuilder::RunBuffer& run = builder.allocR
un(paint, |
| 115
maxTotalText, |
| 116
0, 0, |
| 117
NULL); |
| 118 memcpy(run.glyphs, text.get(), maxTotalText * sizeof(uin
t16_t)); |
| 119 } |
| 120 } |
| 121 } |
| 122 SkNEW_APPEND_TO_TARRAY(&blobs, TextBlobWrapper, (builder.build())); |
| 123 } |
| 124 } |
| 125 |
| 126 // create surface where LCD is impossible |
| 127 info = SkImageInfo::MakeN32Premul(kWidth, kHeight); |
| 128 SkSurfaceProps propsNoLCD(0, kUnknown_SkPixelGeometry); |
| 129 SkAutoTUnref<SkSurface> surfaceNoLCD(canvas->newSurface(info, &propsNoLCD)); |
| 130 REPORTER_ASSERT(reporter, surface); |
| 131 if (!surface) { |
| 132 return; |
| 133 } |
| 134 |
| 135 SkCanvas* canvasNoLCD = surfaceNoLCD->getCanvas(); |
| 136 |
| 137 // test redraw |
| 138 draw(canvas, 2, blobs); |
| 139 draw(canvasNoLCD, 2, blobs); |
| 140 |
| 141 // test draw after free |
| 142 ctx->freeGpuResources(); |
| 143 draw(canvas, 1, blobs); |
| 144 |
| 145 ctx->freeGpuResources(); |
| 146 draw(canvasNoLCD, 1, blobs); |
| 147 |
| 148 // test draw after abandon |
| 149 ctx->abandonContext(); |
| 150 draw(canvas, 1, blobs); |
| 151 } |
| 152 |
| 153 DEF_GPUTEST(TextBlobCache, reporter, factory) { |
| 154 text_blob_cache_inner(reporter, factory, 4096, 256, 30, true); |
| 155 } |
| 156 |
| 157 DEF_GPUTEST(TextBlobAbnormal, reporter, factory) { |
| 158 #ifdef SK_BUILD_FOR_ANDROID |
| 159 text_blob_cache_inner(reporter, factory, 256, 256, 30, false); |
| 160 #else |
| 161 text_blob_cache_inner(reporter, factory, 512, 256, 30, false); |
| 162 #endif |
| 163 } |
| 164 #endif |
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