xref: /aosp_15_r20/external/skia/docs/examples/Matrix_MakeRectToRect.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(Matrix_MakeRectToRect, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6     const SkRect srcs[] = { {0, 0, 0, 0}, {1, 2, 3, 4} };
7     const SkRect dsts[] = { {0, 0, 0, 0}, {5, 6, 8, 9} };
8     for (auto src : srcs) {
9         for (auto dst : dsts) {
10              SkMatrix matrix = SkMatrix::RectToRect(src, dst);
11              SkDebugf("src: %g, %g, %g, %g  dst: %g, %g, %g, %g\n",
12                       src.fLeft, src.fTop, src.fRight, src.fBottom,
13                       dst.fLeft, dst.fTop, dst.fRight, dst.fBottom);
14              matrix.dump();
15         }
16     }
17 }
18 }  // END FIDDLE
19