1 // Copyright 2019 Google LLC.
2 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3 #include "tools/fiddle/examples.h"
4 REG_FIDDLE(Canvas_drawPatch, 256, 256, false, 5) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 // SkBitmap source = cmbkygk;
7 SkPaint paint;
8 paint.setAntiAlias(true);
9 SkPoint cubics[] = { { 3, 1 }, { 4, 2 }, { 5, 1 }, { 7, 3 },
10 /* { 7, 3 }, */ { 6, 4 }, { 7, 5 }, { 5, 7 },
11 /* { 5, 7 }, */ { 4, 6 }, { 3, 7 }, { 1, 5 },
12 /* { 1, 5 }, */ { 2, 4 }, { 1, 3 }, /* { 3, 1 } */ };
13 SkColor colors[] = { 0xbfff0000, 0xbf0000ff, 0xbfff00ff, 0xbf00ffff };
14 SkPoint texCoords[] = { { -30, -30 }, { 162, -30}, { 162, 162}, { -30, 162} };
15 paint.setShader(source.makeShader(SkSamplingOptions(SkFilterMode::kLinear)));
16 canvas->scale(15, 15);
17 for (auto blend : { SkBlendMode::kSrcOver, SkBlendMode::kModulate, SkBlendMode::kXor } ) {
18 canvas->drawPatch(cubics, colors, texCoords, blend, paint);
19 canvas->translate(4, 4);
20 }
21 }
22 } // END FIDDLE
23