1/* 2 * Copyright 2016 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8#include "include/core/SkBitmap.h" 9#include "include/core/SkCanvas.h" 10#include "include/core/SkData.h" 11#include "include/core/SkImage.h" 12#include "include/core/SkRRect.h" 13#include "include/core/SkShader.h" 14#include "include/core/SkSurface.h" 15#include "include/effects/SkPerlinNoiseShader.h" 16#include "tests/Test.h" 17 18static void check_isaimage(skiatest::Reporter* reporter, SkShader* shader, 19 int expectedW, int expectedH, 20 SkTileMode expectedX, SkTileMode expectedY, 21 const SkMatrix& expectedM) { 22 SkTileMode tileModes[2]; 23 SkMatrix localM; 24 25 // wack these so we don't get a false positive 26 localM.setScale(9999, -9999); 27 tileModes[0] = tileModes[1] = (SkTileMode)99; 28 29 SkImage* image = shader->isAImage(&localM, tileModes); 30 REPORTER_ASSERT(reporter, image); 31 REPORTER_ASSERT(reporter, image->width() == expectedW); 32 REPORTER_ASSERT(reporter, image->height() == expectedH); 33 REPORTER_ASSERT(reporter, localM == expectedM); 34 REPORTER_ASSERT(reporter, tileModes[0] == expectedX); 35 REPORTER_ASSERT(reporter, tileModes[1] == expectedY); 36} 37 38DEF_TEST(Shader_isAImage, reporter) { 39 const int W = 100; 40 const int H = 100; 41 SkBitmap bm; 42 bm.allocN32Pixels(W, H); 43 auto img = bm.asImage(); 44 const SkMatrix localM = SkMatrix::Scale(2, 3); 45 const SkTileMode tmx = SkTileMode::kRepeat; 46 const SkTileMode tmy = SkTileMode::kMirror; 47 48 auto shader0 = bm.makeShader(tmx, tmy, SkSamplingOptions(), localM); 49 auto shader1 = bm.asImage()->makeShader(tmx, tmy, SkSamplingOptions(), localM); 50 51 check_isaimage(reporter, shader0.get(), W, H, tmx, tmy, localM); 52 check_isaimage(reporter, shader1.get(), W, H, tmx, tmy, localM); 53} 54 55// Make sure things are ok with just a single leg. 56DEF_TEST(ComposeShaderSingle, reporter) { 57 SkBitmap srcBitmap; 58 srcBitmap.allocN32Pixels(10, 10); 59 srcBitmap.eraseColor(SK_ColorRED); 60 SkCanvas canvas(srcBitmap); 61 SkPaint p; 62 p.setShader( 63 SkShaders::Blend(SkBlendMode::kClear, 64 SkShaders::Empty(), 65 SkPerlinNoiseShader::MakeFractalNoise(1.0f, 1.0f, 2, 0.0f))); 66 SkRRect rr; 67 SkVector rd[] = {{0, 0}, {0, 0}, {0, 0}, {0, 0}}; 68 rr.setRectRadii({0, 0, 0, 0}, rd); 69 canvas.drawRRect(rr, p); 70} 71