// 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 "fiddle/examples.h" // HASH=7822d78f5cacf5c04267cbbc6c6d0b80 REG_FIDDLE(Pixmap_writable_addrF16, 256, 64, false, 0) { void draw(SkCanvas* canvas) { SkImageInfo info = SkImageInfo::Make(1, 2, kRGBA_F16_SkColorType, kPremul_SkAlphaType); uint16_t storage[2][4]; SkPixmap pixmap(info, storage[0], sizeof(uint64_t)); SkIRect topPixelBounds = {0, 0, 1, 1}; pixmap.erase({ 0.65f, 0.45f, 0.25f, 1 }, &topPixelBounds); SkIRect bottomPixelBounds = {0, 1, 1, 2}; pixmap.erase({ 0.25f, 0.65f, 0.45f, 1 }, &bottomPixelBounds); SkBitmap bitmap; canvas->scale(20, 20); bitmap.installPixels(pixmap); canvas->drawBitmap(bitmap, 0, 0); uint16_t* pixel2 = pixmap.writable_addrF16(0, 1); for (int i = 0; i < 4; ++i) { pixel2[i] = storage[0][i]; } bitmap.installPixels(pixmap); canvas->drawBitmap(bitmap, 4, 0); } } // END FIDDLE