| // Copyright 2020 Google LLC. |
| // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. |
| #include "tools/fiddle/examples.h" |
| REG_FIDDLE(skpaint_color_table_filter, 256, 256, false, 3) { |
| void draw(SkCanvas* canvas) { |
| canvas->scale(0.5, 0.5); |
| uint8_t ct[256]; |
| for (int i = 0; i < 256; ++i) { |
| int x = (i - 96) * 255 / 64; |
| ct[i] = x < 0 ? 0 : x > 255 ? 255 : x; |
| } |
| SkPaint paint; |
| paint.setColorFilter(SkTableColorFilter::MakeARGB(nullptr, ct, ct, ct)); |
| canvas->drawImage(image, 0, 0, SkSamplingOptions(), &paint); |
| } |
| } // END FIDDLE |