skia2/docs/examples/software_bitmap_w_perspective.cpp
Hal Canary 8800042f69 docs/examples: REG_FIDDLE_ANIMATED
I also added the `get_examples.py` script which pulls down new fiddles.

Change-Id: I953e461685a4d118ac4e425453e47d665a485aa2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/264570
Commit-Queue: Hal Canary <halcanary@skia.org>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
2020-01-15 19:02:25 +00:00

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733 B
C++

// 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_ANIMATED(software_bitmap_w_perspective, 256, 256, false, 6, 5) {
void draw(SkCanvas* canvas) {
const float width = image->width();
const float height = image->height();
const SkPoint src[] = {{ 0, 0}, {width, 0}, {width * (float)frame, height * (float)frame}, { 0, height}};
const SkPoint dst[] = { {0, 0}, {width, 0}, {width, height}, {0, height} };
SkMatrix matrix;
matrix.setPolyToPoly(src, dst, 4);
SkAutoCanvasRestore acr(canvas, true);
canvas->concat(matrix);
canvas->drawImage(image, 0, 0);
}
} // END FIDDLE