1 /* 2 * Copyright 2021 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 "gm/gm.h" 9 #include "include/core/SkCanvas.h" 10 #include "include/core/SkFont.h" 11 #include "include/core/SkPaint.h" 12 #include "include/core/SkRect.h" 13 #include "include/core/SkSurface.h" 14 #include "include/core/SkTextBlob.h" 15 16 DEF_SIMPLE_GM_BG(skbug_12212, canvas, 400, 400, SK_ColorCYAN) { 17 // Create an Alpha_8 surface to draw into (strangely, with RGB pixel geometry). 18 auto imageInfo = SkImageInfo::Make(/*width=*/400, /*height=*/400, kAlpha_8_SkColorType, 19 kPremul_SkAlphaType); 20 SkSurfaceProps props(/*flags=*/0, kRGB_H_SkPixelGeometry); 21 sk_sp<SkSurface> surface = SkSurface::MakeRenderTarget( 22 canvas->recordingContext(), SkBudgeted::kNo, imageInfo, /*sampleCount=*/0, &props); 23 if (!surface) { 24 surface = SkSurface::MakeRaster(imageInfo, &props); 25 } 26 27 // Draw text into the surface using LCD antialiasing. 28 SkPaint p; 29 p.setAntiAlias(true); 30 p.setBlendMode(SkBlendMode::kSrc); 31 p.setAlpha(0x80); 32 SkFont font{}; 33 font = font.makeWithSize(170); 34 font.setEdging(SkFont::Edging::kSubpixelAntiAlias); 35 auto textBlob = SkTextBlob::MakeFromText("text", /*byteLength=*/4, font); 36 surface->getCanvas()->drawTextBlob(textBlob, /*x=*/50, /*y=*/350, p); 37 38 // Draw the surface on our main canvas. 39 surface->draw(canvas, /*x=*/0, /*y=*/0); 40 } 41