submodule/skia/docs/examples/draw_vertices.cpp

   1 // Copyright 2020 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(draw_vertices, 256, 256, false, 6) {
   5 // draw_vertices
   6 void draw(SkCanvas* canvas) {
   7     SkPaint p;
   8     p.setAntiAlias(true);
   9
  10     SkPoint pts[3] = {{64, 32}, {0, 224}, {128, 224}};
  11     SkColor colors[3] = {SK_ColorRED, SK_ColorBLUE, SK_ColorGREEN};
  12     canvas->drawVertices(
  13             SkVertices::MakeCopy(SkVertices::kTriangles_VertexMode, 3, pts, nullptr, colors),
  14             SkBlendMode::kSrcOver, p);
  15
  16     canvas->translate(120, 0);
  17
  18     p.setShader(image->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat, SkSamplingOptions()));
  19     SkPoint texs[3] = {{0, 0}, {0, 128}, {64, 256}};
  20     canvas->drawVertices(
  21             SkVertices::MakeCopy(SkVertices::kTriangles_VertexMode, 3, pts, texs, nullptr),
  22             SkBlendMode::kSrcOver, p);
  23 }
  24 }  // END FIDDLE