skia2/docs/examples/Canvas_drawImageRect.cpp
Mike Reed b339d051e0 pass sampling to drawImage
Bug: skia:7650
Change-Id: I0fa4c5f3fb350705f78ee91f4bdfb4edd83d0ed9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/361360
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-28 17:56:52 +00:00

28 lines
1.2 KiB
C++

// Copyright 2019 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"
// HASH=bfd18e9cac896cdf94c9f154ccf94be8
REG_FIDDLE(Canvas_drawImageRect, 256, 64, false, 0) {
void draw(SkCanvas* canvas) {
uint32_t pixels[][4] = {
{ 0xFFFF0000, 0xFFFF0000, 0xFFFF0000, 0xFFFF0000 },
{ 0xFFFF0000, 0xFF000000, 0xFFFFFFFF, 0xFFFF0000 },
{ 0xFFFF0000, 0xFFFFFFFF, 0xFF000000, 0xFFFF0000 },
{ 0xFFFF0000, 0xFFFF0000, 0xFFFF0000, 0xFFFF0000 } };
SkBitmap redBorder;
redBorder.installPixels(SkImageInfo::MakeN32Premul(4, 4),
(void*) pixels, sizeof(pixels[0]));
sk_sp<SkImage> image = redBorder.asImage();
SkSamplingOptions sampling;
for (auto constraint : {
SkCanvas::kFast_SrcRectConstraint,
SkCanvas::kStrict_SrcRectConstraint,
SkCanvas::kFast_SrcRectConstraint } ) {
canvas->drawImageRect(image.get(), SkRect::MakeLTRB(1, 1, 3, 3),
SkRect::MakeLTRB(16, 16, 48, 48), sampling, nullptr, constraint);
sampling = SkSamplingOptions(SkFilterMode::kLinear);
canvas->translate(80, 0);
}
}
} // END FIDDLE