1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Pixmap_writable_addrF16, 256, 64, false, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker SkImageInfo info = SkImageInfo::Make(1, 2, kRGBA_F16_SkColorType, kPremul_SkAlphaType);
7*c8dee2aaSAndroid Build Coastguard Worker uint16_t storage[2][4];
8*c8dee2aaSAndroid Build Coastguard Worker SkPixmap pixmap(info, storage[0], sizeof(uint64_t));
9*c8dee2aaSAndroid Build Coastguard Worker SkIRect topPixelBounds = {0, 0, 1, 1};
10*c8dee2aaSAndroid Build Coastguard Worker pixmap.erase({ 0.65f, 0.45f, 0.25f, 1 }, &topPixelBounds);
11*c8dee2aaSAndroid Build Coastguard Worker SkIRect bottomPixelBounds = {0, 1, 1, 2};
12*c8dee2aaSAndroid Build Coastguard Worker pixmap.erase({ 0.25f, 0.65f, 0.45f, 1 }, &bottomPixelBounds);
13*c8dee2aaSAndroid Build Coastguard Worker SkBitmap bitmap;
14*c8dee2aaSAndroid Build Coastguard Worker canvas->scale(20, 20);
15*c8dee2aaSAndroid Build Coastguard Worker bitmap.installPixels(pixmap);
16*c8dee2aaSAndroid Build Coastguard Worker canvas->drawImage(bitmap.asImage(), 0, 0);
17*c8dee2aaSAndroid Build Coastguard Worker uint16_t* pixel2 = pixmap.writable_addrF16(0, 1);
18*c8dee2aaSAndroid Build Coastguard Worker for (int i = 0; i < 4; ++i) {
19*c8dee2aaSAndroid Build Coastguard Worker pixel2[i] = storage[0][i];
20*c8dee2aaSAndroid Build Coastguard Worker }
21*c8dee2aaSAndroid Build Coastguard Worker bitmap.installPixels(pixmap);
22*c8dee2aaSAndroid Build Coastguard Worker canvas->drawImage(bitmap.asImage(), 4, 0);
23*c8dee2aaSAndroid Build Coastguard Worker }
24*c8dee2aaSAndroid Build Coastguard Worker } // END FIDDLE
25