xref: /aosp_15_r20/external/skia/docs/examples/Canvas_drawVertices_2.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
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_drawVertices_2, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     SkPaint paint;
7     SkPoint points[] = { { 0, 0 }, { 250, 0 }, { 100, 100 }, { 0, 250 } };
8     SkPoint texs[] = { { 0, 0 }, { 0, 250 }, { 250, 250 }, { 250, 0 } };
9     SkColor colors[] = { SK_ColorRED, SK_ColorBLUE, SK_ColorYELLOW, SK_ColorCYAN };
10     paint.setShader(SkGradientShader::MakeLinear(points, colors, nullptr, 4, SkTileMode::kClamp));
11     auto vertices = SkVertices::MakeCopy(SkVertices::kTriangleFan_VertexMode,
12             std::size(points), points, texs, colors);
13     canvas->drawVertices(vertices, SkBlendMode::kDarken, paint);
14 }
15 }  // END FIDDLE
16