xref: /aosp_15_r20/external/skia/gm/textblobmixedsizes.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker /*
2*c8dee2aaSAndroid Build Coastguard Worker  * Copyright 2015 Google Inc.
3*c8dee2aaSAndroid Build Coastguard Worker  *
4*c8dee2aaSAndroid Build Coastguard Worker  * Use of this source code is governed by a BSD-style license that can be
5*c8dee2aaSAndroid Build Coastguard Worker  * found in the LICENSE file.
6*c8dee2aaSAndroid Build Coastguard Worker  */
7*c8dee2aaSAndroid Build Coastguard Worker 
8*c8dee2aaSAndroid Build Coastguard Worker #include "gm/gm.h"
9*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkBlurTypes.h"
10*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkCanvas.h"
11*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkColor.h"
12*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkColorSpace.h"
13*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkFont.h"
14*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkFontTypes.h"
15*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkImageInfo.h"
16*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkMaskFilter.h"
17*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkPaint.h"
18*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkRect.h"
19*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkRefCnt.h"
20*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkScalar.h"
21*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkSize.h"
22*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkString.h"
23*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkSurface.h"
24*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkSurfaceProps.h"
25*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkTextBlob.h"
26*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkTypeface.h"
27*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkTypes.h"
28*c8dee2aaSAndroid Build Coastguard Worker #include "include/gpu/GpuTypes.h"
29*c8dee2aaSAndroid Build Coastguard Worker #include "include/gpu/ganesh/SkSurfaceGanesh.h"
30*c8dee2aaSAndroid Build Coastguard Worker #if defined(SK_GRAPHITE)
31*c8dee2aaSAndroid Build Coastguard Worker #include "include/gpu/graphite/Surface.h"
32*c8dee2aaSAndroid Build Coastguard Worker #endif
33*c8dee2aaSAndroid Build Coastguard Worker #include "src/base/SkRandom.h"
34*c8dee2aaSAndroid Build Coastguard Worker #include "src/core/SkBlurMask.h"
35*c8dee2aaSAndroid Build Coastguard Worker #include "tools/Resources.h"
36*c8dee2aaSAndroid Build Coastguard Worker #include "tools/ToolUtils.h"
37*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fonts/FontToolUtils.h"
38*c8dee2aaSAndroid Build Coastguard Worker 
39*c8dee2aaSAndroid Build Coastguard Worker #include <string.h>
40*c8dee2aaSAndroid Build Coastguard Worker 
41*c8dee2aaSAndroid Build Coastguard Worker namespace skiagm {
42*c8dee2aaSAndroid Build Coastguard Worker class TextBlobMixedSizes : public GM {
43*c8dee2aaSAndroid Build Coastguard Worker public:
44*c8dee2aaSAndroid Build Coastguard Worker     // This gm tests that textblobs of mixed sizes with a large glyph will render properly
TextBlobMixedSizes(bool useDFT)45*c8dee2aaSAndroid Build Coastguard Worker     TextBlobMixedSizes(bool useDFT) : fUseDFT(useDFT) {}
46*c8dee2aaSAndroid Build Coastguard Worker 
47*c8dee2aaSAndroid Build Coastguard Worker protected:
onOnceBeforeDraw()48*c8dee2aaSAndroid Build Coastguard Worker     void onOnceBeforeDraw() override {
49*c8dee2aaSAndroid Build Coastguard Worker         SkTextBlobBuilder builder;
50*c8dee2aaSAndroid Build Coastguard Worker 
51*c8dee2aaSAndroid Build Coastguard Worker         // make textblob.  To stress distance fields, we choose sizes appropriately
52*c8dee2aaSAndroid Build Coastguard Worker         sk_sp<SkTypeface> tf = ToolUtils::CreateTypefaceFromResource("fonts/HangingS.ttf");
53*c8dee2aaSAndroid Build Coastguard Worker         if (!tf) {
54*c8dee2aaSAndroid Build Coastguard Worker             tf = ToolUtils::DefaultPortableTypeface();
55*c8dee2aaSAndroid Build Coastguard Worker         }
56*c8dee2aaSAndroid Build Coastguard Worker         SkFont font(tf, 262);
57*c8dee2aaSAndroid Build Coastguard Worker         font.setSubpixel(true);
58*c8dee2aaSAndroid Build Coastguard Worker         font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
59*c8dee2aaSAndroid Build Coastguard Worker 
60*c8dee2aaSAndroid Build Coastguard Worker         const char* text = "Skia";
61*c8dee2aaSAndroid Build Coastguard Worker 
62*c8dee2aaSAndroid Build Coastguard Worker         ToolUtils::add_to_text_blob(&builder, text, font, 0, 0);
63*c8dee2aaSAndroid Build Coastguard Worker 
64*c8dee2aaSAndroid Build Coastguard Worker         // large
65*c8dee2aaSAndroid Build Coastguard Worker         SkRect bounds;
66*c8dee2aaSAndroid Build Coastguard Worker         font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds);
67*c8dee2aaSAndroid Build Coastguard Worker         SkScalar yOffset = bounds.height();
68*c8dee2aaSAndroid Build Coastguard Worker         font.setSize(162);
69*c8dee2aaSAndroid Build Coastguard Worker 
70*c8dee2aaSAndroid Build Coastguard Worker         ToolUtils::add_to_text_blob(&builder, text, font, 0, yOffset);
71*c8dee2aaSAndroid Build Coastguard Worker 
72*c8dee2aaSAndroid Build Coastguard Worker         // Medium
73*c8dee2aaSAndroid Build Coastguard Worker         font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds);
74*c8dee2aaSAndroid Build Coastguard Worker         yOffset += bounds.height();
75*c8dee2aaSAndroid Build Coastguard Worker         font.setSize(72);
76*c8dee2aaSAndroid Build Coastguard Worker 
77*c8dee2aaSAndroid Build Coastguard Worker         ToolUtils::add_to_text_blob(&builder, text, font, 0, yOffset);
78*c8dee2aaSAndroid Build Coastguard Worker 
79*c8dee2aaSAndroid Build Coastguard Worker         // Small
80*c8dee2aaSAndroid Build Coastguard Worker         font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds);
81*c8dee2aaSAndroid Build Coastguard Worker         yOffset += bounds.height();
82*c8dee2aaSAndroid Build Coastguard Worker         font.setSize(32);
83*c8dee2aaSAndroid Build Coastguard Worker 
84*c8dee2aaSAndroid Build Coastguard Worker         ToolUtils::add_to_text_blob(&builder, text, font, 0, yOffset);
85*c8dee2aaSAndroid Build Coastguard Worker 
86*c8dee2aaSAndroid Build Coastguard Worker         // micro (will fall out of distance field text even if distance field text is enabled)
87*c8dee2aaSAndroid Build Coastguard Worker         font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds);
88*c8dee2aaSAndroid Build Coastguard Worker         yOffset += bounds.height();
89*c8dee2aaSAndroid Build Coastguard Worker         font.setSize(14);
90*c8dee2aaSAndroid Build Coastguard Worker 
91*c8dee2aaSAndroid Build Coastguard Worker         ToolUtils::add_to_text_blob(&builder, text, font, 0, yOffset);
92*c8dee2aaSAndroid Build Coastguard Worker 
93*c8dee2aaSAndroid Build Coastguard Worker         // Zero size.
94*c8dee2aaSAndroid Build Coastguard Worker         font.measureText(text, strlen(text), SkTextEncoding::kUTF8, &bounds);
95*c8dee2aaSAndroid Build Coastguard Worker         yOffset += bounds.height();
96*c8dee2aaSAndroid Build Coastguard Worker         font.setSize(0);
97*c8dee2aaSAndroid Build Coastguard Worker 
98*c8dee2aaSAndroid Build Coastguard Worker         ToolUtils::add_to_text_blob(&builder, text, font, 0, yOffset);
99*c8dee2aaSAndroid Build Coastguard Worker 
100*c8dee2aaSAndroid Build Coastguard Worker         // build
101*c8dee2aaSAndroid Build Coastguard Worker         fBlob = builder.make();
102*c8dee2aaSAndroid Build Coastguard Worker     }
103*c8dee2aaSAndroid Build Coastguard Worker 
getName() const104*c8dee2aaSAndroid Build Coastguard Worker     SkString getName() const override {
105*c8dee2aaSAndroid Build Coastguard Worker         return SkStringPrintf("textblobmixedsizes%s",
106*c8dee2aaSAndroid Build Coastguard Worker                               fUseDFT ? "_df" : "");
107*c8dee2aaSAndroid Build Coastguard Worker     }
108*c8dee2aaSAndroid Build Coastguard Worker 
getISize()109*c8dee2aaSAndroid Build Coastguard Worker     SkISize getISize() override { return SkISize::Make(kWidth, kHeight); }
110*c8dee2aaSAndroid Build Coastguard Worker 
onDraw(SkCanvas * inputCanvas)111*c8dee2aaSAndroid Build Coastguard Worker     void onDraw(SkCanvas* inputCanvas) override {
112*c8dee2aaSAndroid Build Coastguard Worker         SkCanvas* canvas = inputCanvas;
113*c8dee2aaSAndroid Build Coastguard Worker         sk_sp<SkSurface> surface;
114*c8dee2aaSAndroid Build Coastguard Worker         if (fUseDFT) {
115*c8dee2aaSAndroid Build Coastguard Worker             // Create a new Canvas to enable DFT
116*c8dee2aaSAndroid Build Coastguard Worker             auto ctx = inputCanvas->recordingContext();
117*c8dee2aaSAndroid Build Coastguard Worker #if defined(SK_GRAPHITE)
118*c8dee2aaSAndroid Build Coastguard Worker             auto recorder = inputCanvas->recorder();
119*c8dee2aaSAndroid Build Coastguard Worker #endif
120*c8dee2aaSAndroid Build Coastguard Worker             SkISize size = this->getISize();
121*c8dee2aaSAndroid Build Coastguard Worker             if (!inputCanvas->getBaseLayerSize().isEmpty()) {
122*c8dee2aaSAndroid Build Coastguard Worker                 size = inputCanvas->getBaseLayerSize();
123*c8dee2aaSAndroid Build Coastguard Worker             }
124*c8dee2aaSAndroid Build Coastguard Worker             sk_sp<SkColorSpace> colorSpace = inputCanvas->imageInfo().refColorSpace();
125*c8dee2aaSAndroid Build Coastguard Worker             SkImageInfo info = SkImageInfo::MakeN32(size.width(), size.height(),
126*c8dee2aaSAndroid Build Coastguard Worker                                                     kPremul_SkAlphaType, colorSpace);
127*c8dee2aaSAndroid Build Coastguard Worker             SkSurfaceProps inputProps;
128*c8dee2aaSAndroid Build Coastguard Worker             inputCanvas->getProps(&inputProps);
129*c8dee2aaSAndroid Build Coastguard Worker             SkSurfaceProps props(
130*c8dee2aaSAndroid Build Coastguard Worker                     SkSurfaceProps::kUseDeviceIndependentFonts_Flag | inputProps.flags(),
131*c8dee2aaSAndroid Build Coastguard Worker                     inputProps.pixelGeometry());
132*c8dee2aaSAndroid Build Coastguard Worker #if defined(SK_GRAPHITE)
133*c8dee2aaSAndroid Build Coastguard Worker             if (recorder) {
134*c8dee2aaSAndroid Build Coastguard Worker                 surface = SkSurfaces::RenderTarget(recorder, info, skgpu::Mipmapped::kNo, &props);
135*c8dee2aaSAndroid Build Coastguard Worker             } else
136*c8dee2aaSAndroid Build Coastguard Worker #endif
137*c8dee2aaSAndroid Build Coastguard Worker             {
138*c8dee2aaSAndroid Build Coastguard Worker                 surface = SkSurfaces::RenderTarget(ctx, skgpu::Budgeted::kNo, info, 0, &props);
139*c8dee2aaSAndroid Build Coastguard Worker             }
140*c8dee2aaSAndroid Build Coastguard Worker             canvas = surface ? surface->getCanvas() : inputCanvas;
141*c8dee2aaSAndroid Build Coastguard Worker             // init our new canvas with the old canvas's matrix
142*c8dee2aaSAndroid Build Coastguard Worker             canvas->setMatrix(inputCanvas->getTotalMatrix());
143*c8dee2aaSAndroid Build Coastguard Worker         }
144*c8dee2aaSAndroid Build Coastguard Worker         canvas->drawColor(SK_ColorWHITE);
145*c8dee2aaSAndroid Build Coastguard Worker 
146*c8dee2aaSAndroid Build Coastguard Worker         SkRect bounds = fBlob->bounds();
147*c8dee2aaSAndroid Build Coastguard Worker 
148*c8dee2aaSAndroid Build Coastguard Worker         const int kPadX = SkScalarFloorToInt(bounds.width() / 3);
149*c8dee2aaSAndroid Build Coastguard Worker         const int kPadY = SkScalarFloorToInt(bounds.height() / 3);
150*c8dee2aaSAndroid Build Coastguard Worker 
151*c8dee2aaSAndroid Build Coastguard Worker         int rowCount = 0;
152*c8dee2aaSAndroid Build Coastguard Worker         canvas->translate(SkIntToScalar(kPadX), SkIntToScalar(kPadY));
153*c8dee2aaSAndroid Build Coastguard Worker         canvas->save();
154*c8dee2aaSAndroid Build Coastguard Worker         SkRandom random;
155*c8dee2aaSAndroid Build Coastguard Worker 
156*c8dee2aaSAndroid Build Coastguard Worker         SkPaint paint;
157*c8dee2aaSAndroid Build Coastguard Worker         if (!fUseDFT) {
158*c8dee2aaSAndroid Build Coastguard Worker             paint.setColor(SK_ColorWHITE);
159*c8dee2aaSAndroid Build Coastguard Worker         }
160*c8dee2aaSAndroid Build Coastguard Worker         paint.setAntiAlias(false);
161*c8dee2aaSAndroid Build Coastguard Worker 
162*c8dee2aaSAndroid Build Coastguard Worker         const SkScalar kSigma = SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(8));
163*c8dee2aaSAndroid Build Coastguard Worker 
164*c8dee2aaSAndroid Build Coastguard Worker         // setup blur paint
165*c8dee2aaSAndroid Build Coastguard Worker         SkPaint blurPaint(paint);
166*c8dee2aaSAndroid Build Coastguard Worker         blurPaint.setColor(SK_ColorBLACK);
167*c8dee2aaSAndroid Build Coastguard Worker         blurPaint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, kSigma));
168*c8dee2aaSAndroid Build Coastguard Worker 
169*c8dee2aaSAndroid Build Coastguard Worker         for (int i = 0; i < 4; i++) {
170*c8dee2aaSAndroid Build Coastguard Worker             canvas->save();
171*c8dee2aaSAndroid Build Coastguard Worker             switch (i % 2) {
172*c8dee2aaSAndroid Build Coastguard Worker                 case 0:
173*c8dee2aaSAndroid Build Coastguard Worker                     canvas->rotate(random.nextF() * 45.f);
174*c8dee2aaSAndroid Build Coastguard Worker                     break;
175*c8dee2aaSAndroid Build Coastguard Worker                 case 1:
176*c8dee2aaSAndroid Build Coastguard Worker                     canvas->rotate(-random.nextF() * 45.f);
177*c8dee2aaSAndroid Build Coastguard Worker                     break;
178*c8dee2aaSAndroid Build Coastguard Worker             }
179*c8dee2aaSAndroid Build Coastguard Worker             if (!fUseDFT) {
180*c8dee2aaSAndroid Build Coastguard Worker                 canvas->drawTextBlob(fBlob, 0, 0, blurPaint);
181*c8dee2aaSAndroid Build Coastguard Worker             }
182*c8dee2aaSAndroid Build Coastguard Worker             canvas->drawTextBlob(fBlob, 0, 0, paint);
183*c8dee2aaSAndroid Build Coastguard Worker             canvas->restore();
184*c8dee2aaSAndroid Build Coastguard Worker             canvas->translate(bounds.width() + SK_Scalar1 * kPadX, 0);
185*c8dee2aaSAndroid Build Coastguard Worker             ++rowCount;
186*c8dee2aaSAndroid Build Coastguard Worker             if ((bounds.width() + 2 * kPadX) * rowCount > kWidth) {
187*c8dee2aaSAndroid Build Coastguard Worker                 canvas->restore();
188*c8dee2aaSAndroid Build Coastguard Worker                 canvas->translate(0, bounds.height() + SK_Scalar1 * kPadY);
189*c8dee2aaSAndroid Build Coastguard Worker                 canvas->save();
190*c8dee2aaSAndroid Build Coastguard Worker                 rowCount = 0;
191*c8dee2aaSAndroid Build Coastguard Worker             }
192*c8dee2aaSAndroid Build Coastguard Worker         }
193*c8dee2aaSAndroid Build Coastguard Worker         canvas->restore();
194*c8dee2aaSAndroid Build Coastguard Worker 
195*c8dee2aaSAndroid Build Coastguard Worker         // render offscreen buffer
196*c8dee2aaSAndroid Build Coastguard Worker         if (surface) {
197*c8dee2aaSAndroid Build Coastguard Worker             SkAutoCanvasRestore acr(inputCanvas, true);
198*c8dee2aaSAndroid Build Coastguard Worker             // since we prepended this matrix already, we blit using identity
199*c8dee2aaSAndroid Build Coastguard Worker             inputCanvas->resetMatrix();
200*c8dee2aaSAndroid Build Coastguard Worker             inputCanvas->drawImage(surface->makeImageSnapshot().get(), 0, 0);
201*c8dee2aaSAndroid Build Coastguard Worker         }
202*c8dee2aaSAndroid Build Coastguard Worker     }
203*c8dee2aaSAndroid Build Coastguard Worker 
204*c8dee2aaSAndroid Build Coastguard Worker private:
205*c8dee2aaSAndroid Build Coastguard Worker     sk_sp<SkTextBlob> fBlob;
206*c8dee2aaSAndroid Build Coastguard Worker 
207*c8dee2aaSAndroid Build Coastguard Worker     static constexpr int kWidth = 2100;
208*c8dee2aaSAndroid Build Coastguard Worker     static constexpr int kHeight = 1900;
209*c8dee2aaSAndroid Build Coastguard Worker 
210*c8dee2aaSAndroid Build Coastguard Worker     bool fUseDFT;
211*c8dee2aaSAndroid Build Coastguard Worker 
212*c8dee2aaSAndroid Build Coastguard Worker     using INHERITED = GM;
213*c8dee2aaSAndroid Build Coastguard Worker };
214*c8dee2aaSAndroid Build Coastguard Worker 
215*c8dee2aaSAndroid Build Coastguard Worker //////////////////////////////////////////////////////////////////////////////
216*c8dee2aaSAndroid Build Coastguard Worker 
217*c8dee2aaSAndroid Build Coastguard Worker DEF_GM( return new TextBlobMixedSizes(false); )
218*c8dee2aaSAndroid Build Coastguard Worker DEF_GM( return new TextBlobMixedSizes(true); )
219*c8dee2aaSAndroid Build Coastguard Worker }  // namespace skiagm
220