skia2/tests/PictureShaderTest.cpp

41 lines
1.3 KiB
C++

/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkCanvas.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkShader.h"
#include "Test.h"
// Test that attempting to create a picture shader with a nullptr picture or
// empty picture returns a shader that draws nothing.
DEF_TEST(PictureShader_empty, reporter) {
SkPaint paint;
SkBitmap bitmap;
bitmap.allocN32Pixels(1,1);
SkCanvas canvas(bitmap);
canvas.clear(SK_ColorGREEN);
paint.setShader(SkShader::MakePictureShader(
nullptr, SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, nullptr, nullptr));
canvas.drawRect(SkRect::MakeWH(1,1), paint);
REPORTER_ASSERT(reporter, *bitmap.getAddr32(0,0) == SK_ColorGREEN);
SkPictureRecorder factory;
factory.beginRecording(0, 0, nullptr, 0);
sk_sp<SkPicture> picture(factory.endRecording());
paint.setShader(SkShader::MakePictureShader(std::move(picture), SkShader::kClamp_TileMode,
SkShader::kClamp_TileMode, nullptr, nullptr));
canvas.drawRect(SkRect::MakeWH(1,1), paint);
REPORTER_ASSERT(reporter, *bitmap.getAddr32(0,0) == SK_ColorGREEN);
}