// Copyright 2019 Google LLC. // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. #include "tools/fiddle/examples.h" // HASH=c26cfae4c42cb445240335cc12a50235 REG_FIDDLE(Canvas_const_SkBitmap_const_SkSurfaceProps, 256, 256, true, 0) { void draw(SkCanvas* ) { SkBitmap bitmap; // create a bitmap 5 wide and 11 high bitmap.allocPixels(SkImageInfo::MakeN32Premul(5, 11)); SkCanvas canvas(bitmap, SkSurfaceProps(0, kUnknown_SkPixelGeometry)); canvas.clear(SK_ColorWHITE); // white is Unpremultiplied, in ARGB order SkPixmap pixmap; // provides guaranteed access to the drawn pixels if (!canvas.peekPixels(&pixmap)) { SkDebugf("peekPixels should never fail.\n"); } const SkPMColor* pixels = pixmap.addr32(); // points to top-left of bitmap SkPMColor pmWhite = pixels[0]; // the Premultiplied format may vary SkPaint paint; // by default, draws black, 12 point text SkFont font; canvas.drawString("!", 1, 10, font, paint); // 1 char at baseline (1, 10) for (int y = 0; y < bitmap.height(); ++y) { for (int x = 0; x < bitmap.width(); ++x) { SkDebugf("%c", *pixels++ == pmWhite ? '-' : 'x'); } SkDebugf("\n"); } } } // END FIDDLE