f160ad4d76
Android is the only user of this looper. They never pass any flags. BUG=skia: Change-Id: I87b02ef7bc0ed94bca82637d60adddf34575a3e6 Reviewed-on: https://skia-review.googlesource.com/10057 Commit-Queue: Matt Sarett <msarett@google.com> Reviewed-by: Mike Reed <reed@google.com>
696 lines
25 KiB
C++
696 lines
25 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkBlurMask.h"
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#include "SkBlurMaskFilter.h"
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#include "SkBlurDrawLooper.h"
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#include "SkCanvas.h"
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#include "SkColorFilter.h"
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#include "SkEmbossMaskFilter.h"
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#include "SkLayerDrawLooper.h"
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#include "SkMath.h"
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#include "SkPaint.h"
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#include "SkPath.h"
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#include "Test.h"
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#if SK_SUPPORT_GPU
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#include "GrContextFactory.h"
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#include "SkGpuDevice.h"
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#endif
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#define WRITE_CSV 0
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///////////////////////////////////////////////////////////////////////////////
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#define ILLEGAL_MODE ((SkXfermode::Mode)-1)
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static const int outset = 100;
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static const SkColor bgColor = SK_ColorWHITE;
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static const int strokeWidth = 4;
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static void create(SkBitmap* bm, const SkIRect& bound) {
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bm->allocN32Pixels(bound.width(), bound.height());
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}
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static void drawBG(SkCanvas* canvas) {
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canvas->drawColor(bgColor);
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}
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struct BlurTest {
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void (*addPath)(SkPath*);
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int viewLen;
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SkIRect views[9];
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};
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//Path Draw Procs
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//Beware that paths themselves my draw differently depending on the clip.
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static void draw50x50Rect(SkPath* path) {
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path->addRect(0, 0, SkIntToScalar(50), SkIntToScalar(50));
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}
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//Tests
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static BlurTest tests[] = {
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{ draw50x50Rect, 3, {
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//inner half of blur
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{ 0, 0, 50, 50 },
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//blur, but no path.
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{ 50 + strokeWidth/2, 50 + strokeWidth/2, 100, 100 },
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//just an edge
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{ 40, strokeWidth, 60, 50 - strokeWidth },
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}},
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};
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/** Assumes that the ref draw was completely inside ref canvas --
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implies that everything outside is "bgColor".
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Checks that all overlap is the same and that all non-overlap on the
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ref is "bgColor".
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*/
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static bool compare(const SkBitmap& ref, const SkIRect& iref,
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const SkBitmap& test, const SkIRect& itest)
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{
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const int xOff = itest.fLeft - iref.fLeft;
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const int yOff = itest.fTop - iref.fTop;
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SkAutoLockPixels alpRef(ref);
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SkAutoLockPixels alpTest(test);
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for (int y = 0; y < test.height(); ++y) {
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for (int x = 0; x < test.width(); ++x) {
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SkColor testColor = test.getColor(x, y);
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int refX = x + xOff;
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int refY = y + yOff;
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SkColor refColor;
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if (refX >= 0 && refX < ref.width() &&
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refY >= 0 && refY < ref.height())
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{
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refColor = ref.getColor(refX, refY);
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} else {
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refColor = bgColor;
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}
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if (refColor != testColor) {
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return false;
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}
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}
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}
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return true;
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}
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DEF_TEST(BlurDrawing, reporter) {
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SkPaint paint;
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paint.setColor(SK_ColorGRAY);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(SkIntToScalar(strokeWidth));
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SkScalar sigma = SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5));
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for (int style = 0; style <= kLastEnum_SkBlurStyle; ++style) {
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SkBlurStyle blurStyle = static_cast<SkBlurStyle>(style);
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const uint32_t flagPermutations = SkBlurMaskFilter::kAll_BlurFlag;
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for (uint32_t flags = 0; flags < flagPermutations; ++flags) {
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paint.setMaskFilter(SkBlurMaskFilter::Make(blurStyle, sigma, flags));
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for (size_t test = 0; test < SK_ARRAY_COUNT(tests); ++test) {
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SkPath path;
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tests[test].addPath(&path);
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SkPath strokedPath;
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paint.getFillPath(path, &strokedPath);
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SkRect refBound = strokedPath.getBounds();
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SkIRect iref;
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refBound.roundOut(&iref);
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iref.inset(-outset, -outset);
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SkBitmap refBitmap;
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create(&refBitmap, iref);
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SkCanvas refCanvas(refBitmap);
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refCanvas.translate(SkIntToScalar(-iref.fLeft),
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SkIntToScalar(-iref.fTop));
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drawBG(&refCanvas);
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refCanvas.drawPath(path, paint);
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for (int view = 0; view < tests[test].viewLen; ++view) {
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SkIRect itest = tests[test].views[view];
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SkBitmap testBitmap;
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create(&testBitmap, itest);
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SkCanvas testCanvas(testBitmap);
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testCanvas.translate(SkIntToScalar(-itest.fLeft),
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SkIntToScalar(-itest.fTop));
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drawBG(&testCanvas);
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testCanvas.drawPath(path, paint);
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REPORTER_ASSERT(reporter,
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compare(refBitmap, iref, testBitmap, itest));
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}
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}
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}
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// Use SkBlurMask::BlurGroundTruth to blur a 'width' x 'height' solid
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// white rect. Return the right half of the middle row in 'result'.
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static void ground_truth_2d(int width, int height,
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SkScalar sigma,
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int* result, int resultCount) {
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SkMask src, dst;
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src.fBounds.set(0, 0, width, height);
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src.fFormat = SkMask::kA8_Format;
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src.fRowBytes = src.fBounds.width();
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src.fImage = SkMask::AllocImage(src.computeTotalImageSize());
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memset(src.fImage, 0xff, src.computeTotalImageSize());
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if (!SkBlurMask::BlurGroundTruth(sigma, &dst, src, kNormal_SkBlurStyle)) {
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return;
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}
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int midX = dst.fBounds.centerX();
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int midY = dst.fBounds.centerY();
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uint8_t* bytes = dst.getAddr8(midX, midY);
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int i;
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for (i = 0; i < dst.fBounds.width()-(midX-dst.fBounds.fLeft); ++i) {
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if (i < resultCount) {
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result[i] = bytes[i];
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}
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}
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for ( ; i < resultCount; ++i) {
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result[i] = 0;
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}
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SkMask::FreeImage(src.fImage);
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SkMask::FreeImage(dst.fImage);
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}
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// Implement a step function that is 255 between min and max; 0 elsewhere.
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static int step(int x, SkScalar min, SkScalar max) {
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if (min < x && x < max) {
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return 255;
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}
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return 0;
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}
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// Implement a Gaussian function with 0 mean and std.dev. of 'sigma'.
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static float gaussian(int x, SkScalar sigma) {
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float k = SK_Scalar1/(sigma * sqrtf(2.0f*SK_ScalarPI));
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float exponent = -(x * x) / (2 * sigma * sigma);
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return k * expf(exponent);
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}
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// Perform a brute force convolution of a step function with a Gaussian.
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// Return the right half in 'result'
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static void brute_force_1d(SkScalar stepMin, SkScalar stepMax,
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SkScalar gaussianSigma,
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int* result, int resultCount) {
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int gaussianRange = SkScalarCeilToInt(10 * gaussianSigma);
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for (int i = 0; i < resultCount; ++i) {
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SkScalar sum = 0.0f;
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for (int j = -gaussianRange; j < gaussianRange; ++j) {
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sum += gaussian(j, gaussianSigma) * step(i-j, stepMin, stepMax);
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}
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result[i] = SkClampMax(SkClampPos(int(sum + 0.5f)), 255);
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}
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}
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static void blur_path(SkCanvas* canvas, const SkPath& path,
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SkScalar gaussianSigma) {
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SkScalar midX = path.getBounds().centerX();
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SkScalar midY = path.getBounds().centerY();
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canvas->translate(-midX, -midY);
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SkPaint blurPaint;
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blurPaint.setColor(SK_ColorWHITE);
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blurPaint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, gaussianSigma,
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SkBlurMaskFilter::kHighQuality_BlurFlag));
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canvas->drawColor(SK_ColorBLACK);
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canvas->drawPath(path, blurPaint);
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}
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// Readback the blurred draw results from the canvas
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static void readback(SkCanvas* canvas, int* result, int resultCount) {
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SkBitmap readback;
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readback.allocN32Pixels(resultCount, 30);
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SkIRect readBackRect = { 0, 0, resultCount, 30 };
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canvas->readPixels(readBackRect, &readback);
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readback.lockPixels();
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SkPMColor* pixels = (SkPMColor*) readback.getAddr32(0, 15);
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for (int i = 0; i < resultCount; ++i) {
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result[i] = SkColorGetR(pixels[i]);
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}
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}
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// Draw a blurred version of the provided path.
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// Return the right half of the middle row in 'result'.
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static void cpu_blur_path(const SkPath& path, SkScalar gaussianSigma,
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int* result, int resultCount) {
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SkBitmap bitmap;
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bitmap.allocN32Pixels(resultCount, 30);
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SkCanvas canvas(bitmap);
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blur_path(&canvas, path, gaussianSigma);
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readback(&canvas, result, resultCount);
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}
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#if SK_SUPPORT_GPU
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#if 0
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// temporary disable; see below for explanation
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static bool gpu_blur_path(GrContext* context, const SkPath& path,
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SkScalar gaussianSigma,
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int* result, int resultCount) {
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GrSurfaceDesc desc;
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desc.fConfig = kSkia8888_GrPixelConfig;
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desc.fFlags = kRenderTarget_GrSurfaceFlag;
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desc.fWidth = resultCount;
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desc.fHeight = 30;
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desc.fSampleCnt = 0;
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sk_sp<GrTexture> texture(grContext->createTexture(desc, false, nullptr, 0));
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sk_sp<SkGpuDevice> device(new SkGpuDevice(grContext, texture.get()));
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SkCanvas canvas(device.get());
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blur_path(&canvas, path, gaussianSigma);
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readback(&canvas, result, resultCount);
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return true;
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}
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#endif
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#endif
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#if WRITE_CSV
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static void write_as_csv(const char* label, SkScalar scale, int* data, int count) {
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SkDebugf("%s_%.2f,", label, scale);
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for (int i = 0; i < count-1; ++i) {
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SkDebugf("%d,", data[i]);
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}
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SkDebugf("%d\n", data[count-1]);
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}
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#endif
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static bool match(int* first, int* second, int count, int tol) {
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int delta;
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for (int i = 0; i < count; ++i) {
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delta = first[i] - second[i];
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if (delta > tol || delta < -tol) {
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return false;
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}
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}
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return true;
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}
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// Test out the normal blur style with a wide range of sigmas
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DEF_TEST(BlurSigmaRange, reporter) {
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static const int kSize = 100;
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// The geometry is offset a smidge to trigger:
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// https://code.google.com/p/chromium/issues/detail?id=282418
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SkPath rectPath;
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rectPath.addRect(0.3f, 0.3f, 100.3f, 100.3f);
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SkPoint polyPts[] = {
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{ 0.3f, 0.3f },
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{ 100.3f, 0.3f },
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{ 100.3f, 100.3f },
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{ 0.3f, 100.3f },
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{ 2.3f, 50.3f } // a little divet to throw off the rect special case
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};
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SkPath polyPath;
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polyPath.addPoly(polyPts, SK_ARRAY_COUNT(polyPts), true);
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int rectSpecialCaseResult[kSize];
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int generalCaseResult[kSize];
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int groundTruthResult[kSize];
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int bruteForce1DResult[kSize];
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SkScalar sigma = 10.0f;
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for (int i = 0; i < 4; ++i, sigma /= 10) {
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cpu_blur_path(rectPath, sigma, rectSpecialCaseResult, kSize);
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cpu_blur_path(polyPath, sigma, generalCaseResult, kSize);
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ground_truth_2d(100, 100, sigma, groundTruthResult, kSize);
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brute_force_1d(-50.0f, 50.0f, sigma, bruteForce1DResult, kSize);
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REPORTER_ASSERT(reporter, match(rectSpecialCaseResult, bruteForce1DResult, kSize, 5));
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REPORTER_ASSERT(reporter, match(generalCaseResult, bruteForce1DResult, kSize, 15));
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#if SK_SUPPORT_GPU
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#if 0
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int gpuResult[kSize];
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bool haveGPUResult = gpu_blur_path(context, rectPath, sigma, gpuResult, kSize);
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// Disabling this test for now -- I don't think it's a legit comparison.
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// Will continue to investigate this.
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if (haveGPUResult) {
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// 1 works everywhere but: Ubuntu13 & Nexus4
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REPORTER_ASSERT(reporter, match(gpuResult, bruteForce1DResult, kSize, 10));
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}
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#endif
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#endif
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REPORTER_ASSERT(reporter, match(groundTruthResult, bruteForce1DResult, kSize, 1));
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#if WRITE_CSV
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write_as_csv("RectSpecialCase", sigma, rectSpecialCaseResult, kSize);
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write_as_csv("GeneralCase", sigma, generalCaseResult, kSize);
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#if SK_SUPPORT_GPU
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write_as_csv("GPU", sigma, gpuResult, kSize);
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#endif
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write_as_csv("GroundTruth2D", sigma, groundTruthResult, kSize);
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write_as_csv("BruteForce1D", sigma, bruteForce1DResult, kSize);
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#endif
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////
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static SkBlurQuality blurMaskFilterFlags_as_quality(uint32_t blurMaskFilterFlags) {
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return (blurMaskFilterFlags & SkBlurMaskFilter::kHighQuality_BlurFlag) ?
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kHigh_SkBlurQuality : kLow_SkBlurQuality;
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}
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static void test_blurDrawLooper(skiatest::Reporter* reporter, SkScalar sigma,
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SkBlurStyle style, uint32_t blurMaskFilterFlags) {
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if (kNormal_SkBlurStyle != style) {
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return; // blurdrawlooper only supports normal
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}
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const SkColor color = 0xFF335577;
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const SkScalar dx = 10;
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const SkScalar dy = -5;
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sk_sp<SkDrawLooper> lp(SkBlurDrawLooper::Make(color, sigma, dx, dy));
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const bool expectSuccess = sigma > 0;
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if (nullptr == lp) {
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REPORTER_ASSERT(reporter, sigma <= 0);
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} else {
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SkDrawLooper::BlurShadowRec rec;
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bool success = lp->asABlurShadow(&rec);
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REPORTER_ASSERT(reporter, success == expectSuccess);
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if (success) {
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REPORTER_ASSERT(reporter, rec.fSigma == sigma);
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REPORTER_ASSERT(reporter, rec.fOffset.x() == dx);
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REPORTER_ASSERT(reporter, rec.fOffset.y() == dy);
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REPORTER_ASSERT(reporter, rec.fColor == color);
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REPORTER_ASSERT(reporter, rec.fStyle == style);
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REPORTER_ASSERT(reporter, rec.fQuality == kLow_SkBlurQuality);
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}
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}
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}
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static void test_looper(skiatest::Reporter* reporter, sk_sp<SkDrawLooper> lp, SkScalar sigma,
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SkBlurStyle style, SkBlurQuality quality, bool expectSuccess) {
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SkDrawLooper::BlurShadowRec rec;
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bool success = lp->asABlurShadow(&rec);
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REPORTER_ASSERT(reporter, success == expectSuccess);
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if (success != expectSuccess) {
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lp->asABlurShadow(&rec);
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}
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if (success) {
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REPORTER_ASSERT(reporter, rec.fSigma == sigma);
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REPORTER_ASSERT(reporter, rec.fStyle == style);
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REPORTER_ASSERT(reporter, rec.fQuality == quality);
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}
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}
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static void make_noop_layer(SkLayerDrawLooper::Builder* builder) {
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SkLayerDrawLooper::LayerInfo info;
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info.fPaintBits = 0;
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info.fColorMode = SkBlendMode::kDst;
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builder->addLayer(info);
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}
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static void make_blur_layer(SkLayerDrawLooper::Builder* builder, sk_sp<SkMaskFilter> mf) {
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SkLayerDrawLooper::LayerInfo info;
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info.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit;
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info.fColorMode = SkBlendMode::kSrc;
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SkPaint* paint = builder->addLayer(info);
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paint->setMaskFilter(std::move(mf));
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}
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static void test_layerDrawLooper(skiatest::Reporter* reporter, sk_sp<SkMaskFilter> mf,
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SkScalar sigma, SkBlurStyle style, SkBlurQuality quality,
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bool expectSuccess) {
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SkLayerDrawLooper::LayerInfo info;
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SkLayerDrawLooper::Builder builder;
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// 1 layer is too few
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make_noop_layer(&builder);
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test_looper(reporter, builder.detach(), sigma, style, quality, false);
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// 2 layers is good, but need blur
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make_noop_layer(&builder);
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make_noop_layer(&builder);
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test_looper(reporter, builder.detach(), sigma, style, quality, false);
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// 2 layers is just right
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make_noop_layer(&builder);
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make_blur_layer(&builder, mf);
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test_looper(reporter, builder.detach(), sigma, style, quality, expectSuccess);
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// 3 layers is too many
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make_noop_layer(&builder);
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make_blur_layer(&builder, mf);
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make_noop_layer(&builder);
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test_looper(reporter, builder.detach(), sigma, style, quality, false);
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}
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DEF_TEST(BlurAsABlur, reporter) {
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const SkBlurStyle styles[] = {
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kNormal_SkBlurStyle, kSolid_SkBlurStyle, kOuter_SkBlurStyle, kInner_SkBlurStyle
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};
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const SkScalar sigmas[] = {
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// values <= 0 should not success for a blur
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-1, 0, 0.5f, 2
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};
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// Test asABlur for SkBlurMaskFilter
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//
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for (size_t i = 0; i < SK_ARRAY_COUNT(styles); ++i) {
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const SkBlurStyle style = styles[i];
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for (size_t j = 0; j < SK_ARRAY_COUNT(sigmas); ++j) {
|
|
const SkScalar sigma = sigmas[j];
|
|
for (int flags = 0; flags <= SkBlurMaskFilter::kAll_BlurFlag; ++flags) {
|
|
const SkBlurQuality quality = blurMaskFilterFlags_as_quality(flags);
|
|
|
|
sk_sp<SkMaskFilter> mf(SkBlurMaskFilter::Make(style, sigma, flags));
|
|
if (nullptr == mf.get()) {
|
|
REPORTER_ASSERT(reporter, sigma <= 0);
|
|
} else {
|
|
REPORTER_ASSERT(reporter, sigma > 0);
|
|
SkMaskFilter::BlurRec rec;
|
|
bool success = mf->asABlur(&rec);
|
|
if (flags & SkBlurMaskFilter::kIgnoreTransform_BlurFlag) {
|
|
REPORTER_ASSERT(reporter, !success);
|
|
} else {
|
|
REPORTER_ASSERT(reporter, success);
|
|
REPORTER_ASSERT(reporter, rec.fSigma == sigma);
|
|
REPORTER_ASSERT(reporter, rec.fStyle == style);
|
|
REPORTER_ASSERT(reporter, rec.fQuality == quality);
|
|
}
|
|
test_layerDrawLooper(reporter, std::move(mf), sigma, style, quality, success);
|
|
}
|
|
test_blurDrawLooper(reporter, sigma, style, flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Test asABlur for SkEmbossMaskFilter -- should never succeed
|
|
//
|
|
{
|
|
SkEmbossMaskFilter::Light light = {
|
|
{ 1, 1, 1 }, 0, 127, 127
|
|
};
|
|
for (size_t j = 0; j < SK_ARRAY_COUNT(sigmas); ++j) {
|
|
const SkScalar sigma = sigmas[j];
|
|
auto mf(SkEmbossMaskFilter::Make(sigma, light));
|
|
if (mf) {
|
|
SkMaskFilter::BlurRec rec;
|
|
bool success = mf->asABlur(&rec);
|
|
REPORTER_ASSERT(reporter, !success);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#if SK_SUPPORT_GPU
|
|
|
|
// This exercises the problem discovered in crbug.com/570232. The return value from
|
|
// SkBlurMask::BoxBlur wasn't being checked in SkBlurMaskFilter.cpp::GrRRectBlurEffect::Create
|
|
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SmallBoxBlurBug, reporter, ctxInfo) {
|
|
|
|
SkImageInfo info = SkImageInfo::MakeN32Premul(128, 128);
|
|
auto surface(SkSurface::MakeRenderTarget(ctxInfo.grContext(), SkBudgeted::kNo, info));
|
|
SkCanvas* canvas = surface->getCanvas();
|
|
|
|
SkRect r = SkRect::MakeXYWH(10, 10, 100, 100);
|
|
SkRRect rr = SkRRect::MakeRectXY(r, 10, 10);
|
|
|
|
SkPaint p;
|
|
p.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, 0.01f));
|
|
|
|
canvas->drawRRect(rr, p);
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
DEF_TEST(BlurredRRectNinePatchComputation, reporter) {
|
|
const SkRect r = SkRect::MakeXYWH(10, 10, 100, 100);
|
|
static const SkScalar kBlurRad = 3.0f;
|
|
|
|
bool ninePatchable;
|
|
SkRRect rrectToDraw;
|
|
SkISize size;
|
|
SkScalar rectXs[SkBlurMaskFilter::kMaxDivisions], rectYs[SkBlurMaskFilter::kMaxDivisions];
|
|
SkScalar texXs[SkBlurMaskFilter::kMaxDivisions], texYs[SkBlurMaskFilter::kMaxDivisions];
|
|
int numX, numY;
|
|
uint32_t skipMask;
|
|
|
|
// not nine-patchable
|
|
{
|
|
SkVector radii[4] = { { 100, 100 }, { 0, 0 }, { 100, 100 }, { 0, 0 } };
|
|
|
|
SkRRect rr;
|
|
rr.setRectRadii(r, radii);
|
|
|
|
ninePatchable = SkBlurMaskFilter::ComputeBlurredRRectParams(rr, rr, SkRect::MakeEmpty(),
|
|
kBlurRad, kBlurRad,
|
|
&rrectToDraw, &size,
|
|
rectXs, rectYs, texXs, texYs,
|
|
&numX, &numY, &skipMask);
|
|
REPORTER_ASSERT(reporter, !ninePatchable);
|
|
}
|
|
|
|
// simple circular
|
|
{
|
|
static const SkScalar kCornerRad = 10.0f;
|
|
SkRRect rr;
|
|
rr.setRectXY(r, kCornerRad, kCornerRad);
|
|
|
|
ninePatchable = SkBlurMaskFilter::ComputeBlurredRRectParams(rr, rr, SkRect::MakeEmpty(),
|
|
kBlurRad, kBlurRad,
|
|
&rrectToDraw, &size,
|
|
rectXs, rectYs, texXs, texYs,
|
|
&numX, &numY, &skipMask);
|
|
|
|
static const SkScalar kAns = 12.0f * kBlurRad + 2.0f * kCornerRad + 1.0f;
|
|
REPORTER_ASSERT(reporter, ninePatchable);
|
|
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SkIntToScalar(size.fWidth), kAns));
|
|
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SkIntToScalar(size.fHeight), kAns));
|
|
REPORTER_ASSERT(reporter, 4 == numX && 4 == numY);
|
|
REPORTER_ASSERT(reporter, !skipMask);
|
|
}
|
|
|
|
// simple elliptical
|
|
{
|
|
static const SkScalar kXCornerRad = 2.0f;
|
|
static const SkScalar kYCornerRad = 10.0f;
|
|
SkRRect rr;
|
|
rr.setRectXY(r, kXCornerRad, kYCornerRad);
|
|
|
|
ninePatchable = SkBlurMaskFilter::ComputeBlurredRRectParams(rr, rr, SkRect::MakeEmpty(),
|
|
kBlurRad, kBlurRad,
|
|
&rrectToDraw, &size,
|
|
rectXs, rectYs, texXs, texYs,
|
|
&numX, &numY, &skipMask);
|
|
|
|
static const SkScalar kXAns = 12.0f * kBlurRad + 2.0f * kXCornerRad + 1.0f;
|
|
static const SkScalar kYAns = 12.0f * kBlurRad + 2.0f * kYCornerRad + 1.0f;
|
|
|
|
REPORTER_ASSERT(reporter, ninePatchable);
|
|
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SkIntToScalar(size.fWidth), kXAns));
|
|
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(SkIntToScalar(size.fHeight), kYAns));
|
|
REPORTER_ASSERT(reporter, 4 == numX && 4 == numY);
|
|
REPORTER_ASSERT(reporter, !skipMask);
|
|
}
|
|
|
|
// test-out occlusion
|
|
{
|
|
static const SkScalar kCornerRad = 10.0f;
|
|
SkRRect rr;
|
|
rr.setRectXY(r, kCornerRad, kCornerRad);
|
|
|
|
// The rectXs & rectYs should be { 1, 29, 91, 119 }. Add two more points around each.
|
|
SkScalar testLocs[] = {
|
|
-18.0f, -9.0f,
|
|
1.0f,
|
|
9.0f, 18.0f,
|
|
29.0f,
|
|
39.0f, 49.0f,
|
|
91.0f,
|
|
109.0f, 118.0f,
|
|
119.0f,
|
|
139.0f, 149.0f
|
|
};
|
|
|
|
for (int minY = 0; minY < (int)SK_ARRAY_COUNT(testLocs); ++minY) {
|
|
for (int maxY = minY+1; maxY < (int)SK_ARRAY_COUNT(testLocs); ++maxY) {
|
|
for (int minX = 0; minX < (int)SK_ARRAY_COUNT(testLocs); ++minX) {
|
|
for (int maxX = minX+1; maxX < (int)SK_ARRAY_COUNT(testLocs); ++maxX) {
|
|
SkRect occluder = SkRect::MakeLTRB(testLocs[minX], testLocs[minY],
|
|
testLocs[maxX], testLocs[maxY]);
|
|
if (occluder.isEmpty()) {
|
|
continue;
|
|
}
|
|
|
|
ninePatchable = SkBlurMaskFilter::ComputeBlurredRRectParams(
|
|
rr, rr, occluder,
|
|
kBlurRad, kBlurRad,
|
|
&rrectToDraw, &size,
|
|
rectXs, rectYs, texXs, texYs,
|
|
&numX, &numY, &skipMask);
|
|
|
|
static const SkScalar kAns = 12.0f * kBlurRad + 2.0f * kCornerRad + 1.0f;
|
|
REPORTER_ASSERT(reporter, ninePatchable);
|
|
REPORTER_ASSERT(reporter,
|
|
SkScalarNearlyEqual(SkIntToScalar(size.fWidth), kAns));
|
|
REPORTER_ASSERT(reporter,
|
|
SkScalarNearlyEqual(SkIntToScalar(size.fHeight), kAns));
|
|
|
|
int checkBit = 0x1;
|
|
for (int y = 0; y < numY-1; ++y) {
|
|
for (int x = 0; x < numX-1; ++x) {
|
|
SkRect cell = SkRect::MakeLTRB(rectXs[x], rectYs[y],
|
|
rectXs[x+1], rectYs[y+1]);
|
|
REPORTER_ASSERT(reporter,
|
|
SkToBool(skipMask & checkBit) ==
|
|
(cell.isEmpty() || occluder.contains(cell)));
|
|
|
|
REPORTER_ASSERT(reporter, texXs[x] >= 0 &&
|
|
texXs[x] <= size.fWidth);
|
|
REPORTER_ASSERT(reporter, texYs[y] >= 0 &&
|
|
texXs[y] <= size.fHeight);
|
|
|
|
checkBit <<= 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////////
|