24 lines
1.1 KiB
C++
24 lines
1.1 KiB
C++
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "tools/fiddle/examples.h"
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// HASH=accb545d67984ced168f5be6ab824795
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REG_FIDDLE(Canvas_drawPatch, 256, 256, false, 5) {
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void draw(SkCanvas* canvas) {
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// SkBitmap source = cmbkygk;
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SkPaint paint;
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paint.setAntiAlias(true);
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SkPoint cubics[] = { { 3, 1 }, { 4, 2 }, { 5, 1 }, { 7, 3 },
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/* { 7, 3 }, */ { 6, 4 }, { 7, 5 }, { 5, 7 },
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/* { 5, 7 }, */ { 4, 6 }, { 3, 7 }, { 1, 5 },
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/* { 1, 5 }, */ { 2, 4 }, { 1, 3 }, /* { 3, 1 } */ };
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SkColor colors[] = { 0xbfff0000, 0xbf0000ff, 0xbfff00ff, 0xbf00ffff };
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SkPoint texCoords[] = { { -30, -30 }, { 162, -30}, { 162, 162}, { -30, 162} };
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paint.setShader(source.makeShader(SkSamplingOptions(SkFilterMode::kLinear)));
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canvas->scale(15, 15);
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for (auto blend : { SkBlendMode::kSrcOver, SkBlendMode::kModulate, SkBlendMode::kXor } ) {
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canvas->drawPatch(cubics, colors, texCoords, blend, paint);
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canvas->translate(4, 4);
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}
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}
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} // END FIDDLE
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