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- /*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "include/core/SkFont.h"
- #include "include/core/SkMaskFilter.h"
- #include "include/core/SkPath.h"
- #include "include/core/SkTypeface.h"
- #include "include/effects/SkLayerDrawLooper.h"
- #include "include/private/SkTo.h"
- #include "include/utils/SkRandom.h"
- #include "src/core/SkAutoMalloc.h"
- #include "src/core/SkBlurMask.h"
- #include "src/core/SkPaintPriv.h"
- #include "src/core/SkReadBuffer.h"
- #include "src/core/SkWriteBuffer.h"
- #include "src/utils/SkUTF.h"
- #include "tests/Test.h"
- #undef ASSERT
- // temparary api for bicubic, just be sure we can set/clear it
- DEF_TEST(Paint_filterQuality, reporter) {
- SkPaint p0, p1;
- REPORTER_ASSERT(reporter, kNone_SkFilterQuality == p0.getFilterQuality());
- static const SkFilterQuality gQualitys[] = {
- kNone_SkFilterQuality,
- kLow_SkFilterQuality,
- kMedium_SkFilterQuality,
- kHigh_SkFilterQuality
- };
- for (size_t i = 0; i < SK_ARRAY_COUNT(gQualitys); ++i) {
- p0.setFilterQuality(gQualitys[i]);
- REPORTER_ASSERT(reporter, gQualitys[i] == p0.getFilterQuality());
- p1 = p0;
- REPORTER_ASSERT(reporter, gQualitys[i] == p1.getFilterQuality());
- p0.reset();
- REPORTER_ASSERT(reporter, kNone_SkFilterQuality == p0.getFilterQuality());
- }
- }
- DEF_TEST(Paint_copy, reporter) {
- SkPaint paint;
- // set a few member variables
- paint.setStyle(SkPaint::kStrokeAndFill_Style);
- paint.setStrokeWidth(SkIntToScalar(2));
- // set a few pointers
- #ifdef SK_SUPPORT_LEGACY_DRAWLOOPER
- SkLayerDrawLooper::Builder looperBuilder;
- paint.setLooper(looperBuilder.detach());
- #endif
- paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle,
- SkBlurMask::ConvertRadiusToSigma(1)));
- // copy the paint using the copy constructor and check they are the same
- SkPaint copiedPaint = paint;
- REPORTER_ASSERT(reporter, paint.getHash() == copiedPaint.getHash());
- REPORTER_ASSERT(reporter, paint == copiedPaint);
- // copy the paint using the equal operator and check they are the same
- copiedPaint = paint;
- REPORTER_ASSERT(reporter, paint == copiedPaint);
- // clean the paint and check they are back to their initial states
- SkPaint cleanPaint;
- paint.reset();
- copiedPaint.reset();
- REPORTER_ASSERT(reporter, cleanPaint == paint);
- REPORTER_ASSERT(reporter, cleanPaint == copiedPaint);
- }
- // found and fixed for webkit: mishandling when we hit recursion limit on
- // mostly degenerate cubic flatness test
- DEF_TEST(Paint_regression_cubic, reporter) {
- SkPath path, stroke;
- SkPaint paint;
- path.moveTo(460.2881309415525f,
- 303.250847066498f);
- path.cubicTo(463.36378422175284f,
- 302.1169735073363f,
- 456.32239330810046f,
- 304.720354932878f,
- 453.15255460013304f,
- 305.788586869862f);
- SkRect fillR, strokeR;
- fillR = path.getBounds();
- paint.setStyle(SkPaint::kStroke_Style);
- paint.setStrokeWidth(SkIntToScalar(2));
- paint.getFillPath(path, &stroke);
- strokeR = stroke.getBounds();
- SkRect maxR = fillR;
- SkScalar miter = SkMaxScalar(SK_Scalar1, paint.getStrokeMiter());
- SkScalar inset = paint.getStrokeJoin() == SkPaint::kMiter_Join ?
- paint.getStrokeWidth() * miter :
- paint.getStrokeWidth();
- maxR.inset(-inset, -inset);
- // test that our stroke didn't explode
- REPORTER_ASSERT(reporter, maxR.contains(strokeR));
- }
- DEF_TEST(Paint_flattening, reporter) {
- const SkFilterQuality levels[] = {
- kNone_SkFilterQuality,
- kLow_SkFilterQuality,
- kMedium_SkFilterQuality,
- kHigh_SkFilterQuality,
- };
- const SkPaint::Cap caps[] = {
- SkPaint::kButt_Cap,
- SkPaint::kRound_Cap,
- SkPaint::kSquare_Cap,
- };
- const SkPaint::Join joins[] = {
- SkPaint::kMiter_Join,
- SkPaint::kRound_Join,
- SkPaint::kBevel_Join,
- };
- const SkPaint::Style styles[] = {
- SkPaint::kFill_Style,
- SkPaint::kStroke_Style,
- SkPaint::kStrokeAndFill_Style,
- };
- #define FOR_SETUP(index, array, setter) \
- for (size_t index = 0; index < SK_ARRAY_COUNT(array); ++index) { \
- paint.setter(array[index]);
- SkPaint paint;
- paint.setAntiAlias(true);
- // we don't serialize hinting or encoding -- soon to be removed from paint
- FOR_SETUP(i, levels, setFilterQuality)
- FOR_SETUP(l, caps, setStrokeCap)
- FOR_SETUP(m, joins, setStrokeJoin)
- FOR_SETUP(p, styles, setStyle)
- SkBinaryWriteBuffer writer;
- SkPaintPriv::Flatten(paint, writer);
- SkAutoMalloc buf(writer.bytesWritten());
- writer.writeToMemory(buf.get());
- SkReadBuffer reader(buf.get(), writer.bytesWritten());
- SkPaint paint2;
- SkPaintPriv::Unflatten(&paint2, reader, nullptr);
- REPORTER_ASSERT(reporter, paint2 == paint);
- }}}}
- #undef FOR_SETUP
- }
- // found and fixed for android: not initializing rect for string's of length 0
- DEF_TEST(Paint_regression_measureText, reporter) {
- SkFont font;
- font.setSize(12.0f);
- SkRect r;
- r.setLTRB(SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN);
- // test that the rect was reset
- font.measureText("", 0, SkTextEncoding::kUTF8, &r);
- REPORTER_ASSERT(reporter, r.isEmpty());
- }
- #define ASSERT(expr) REPORTER_ASSERT(r, expr)
- DEF_TEST(Paint_MoreFlattening, r) {
- SkPaint paint;
- paint.setColor(0x00AABBCC);
- paint.setBlendMode(SkBlendMode::kModulate);
- #ifdef SK_SUPPORT_LEGACY_DRAWLOOPER
- paint.setLooper(nullptr); // Default value, ignored.
- #endif
- SkBinaryWriteBuffer writer;
- SkPaintPriv::Flatten(paint, writer);
- SkAutoMalloc buf(writer.bytesWritten());
- writer.writeToMemory(buf.get());
- SkReadBuffer reader(buf.get(), writer.bytesWritten());
- SkPaint other;
- SkPaintPriv::Unflatten(&other, reader, nullptr);
- ASSERT(reader.offset() == writer.bytesWritten());
- // No matter the encoding, these must always hold.
- ASSERT(other.getColor() == paint.getColor());
- #ifdef SK_SUPPORT_LEGACY_DRAWLOOPER
- ASSERT(other.getLooper() == paint.getLooper());
- #endif
- ASSERT(other.getBlendMode() == paint.getBlendMode());
- }
- DEF_TEST(Paint_getHash, r) {
- // Try not to inspect the actual hash values in here.
- // We might want to change the hash function.
- SkPaint paint;
- const uint32_t defaultHash = paint.getHash();
- // Check that some arbitrary field affects the hash.
- paint.setColor(0xFF00FF00);
- REPORTER_ASSERT(r, paint.getHash() != defaultHash);
- paint.setColor(SK_ColorBLACK); // Reset to default value.
- REPORTER_ASSERT(r, paint.getHash() == defaultHash);
- // This is part of fBitfields, the last field we hash.
- paint.setBlendMode(SkBlendMode::kSrc);
- REPORTER_ASSERT(r, paint.getHash() != defaultHash);
- paint.setBlendMode(SkBlendMode::kSrcOver);
- REPORTER_ASSERT(r, paint.getHash() == defaultHash);
- }
- #include "include/effects/SkColorMatrixFilter.h"
- DEF_TEST(Paint_nothingToDraw, r) {
- SkPaint paint;
- REPORTER_ASSERT(r, !paint.nothingToDraw());
- paint.setAlpha(0);
- REPORTER_ASSERT(r, paint.nothingToDraw());
- paint.setAlpha(0xFF);
- paint.setBlendMode(SkBlendMode::kDst);
- REPORTER_ASSERT(r, paint.nothingToDraw());
- paint.setAlpha(0);
- paint.setBlendMode(SkBlendMode::kSrcOver);
- SkColorMatrix cm;
- cm.setIdentity(); // does not change alpha
- paint.setColorFilter(SkColorFilters::Matrix(cm));
- REPORTER_ASSERT(r, paint.nothingToDraw());
- cm.postTranslate(0, 0, 0, 1.0f/255); // wacks alpha
- paint.setColorFilter(SkColorFilters::Matrix(cm));
- REPORTER_ASSERT(r, !paint.nothingToDraw());
- }
- DEF_TEST(Font_getpos, r) {
- SkFont font;
- const char text[] = "Hamburgefons!@#!#23425,./;'[]";
- int count = font.countText(text, strlen(text), SkTextEncoding::kUTF8);
- SkAutoTArray<uint16_t> glyphStorage(count);
- uint16_t* glyphs = glyphStorage.get();
- (void)font.textToGlyphs(text, strlen(text), SkTextEncoding::kUTF8, glyphs, count);
- SkAutoTArray<SkScalar> widthStorage(count);
- SkAutoTArray<SkScalar> xposStorage(count);
- SkAutoTArray<SkPoint> posStorage(count);
- SkScalar* widths = widthStorage.get();
- SkScalar* xpos = xposStorage.get();
- SkPoint* pos = posStorage.get();
- for (bool subpix : { false, true }) {
- font.setSubpixel(subpix);
- for (auto hint : { SkFontHinting::kNone, SkFontHinting::kSlight, SkFontHinting::kNormal, SkFontHinting::kFull}) {
- font.setHinting(hint);
- for (auto size : { 1.0f, 12.0f, 100.0f }) {
- font.setSize(size);
- font.getWidths(glyphs, count, widths);
- font.getXPos(glyphs, count, xpos, 10);
- font.getPos(glyphs, count, pos, {10, 20});
- auto nearly_eq = [](SkScalar a, SkScalar b) {
- return SkScalarAbs(a - b) < 0.000001f;
- };
- SkScalar x = 10;
- for (int i = 0; i < count; ++i) {
- REPORTER_ASSERT(r, nearly_eq(x, xpos[i]));
- REPORTER_ASSERT(r, nearly_eq(x, pos[i].fX));
- REPORTER_ASSERT(r, nearly_eq(20, pos[i].fY));
- x += widths[i];
- }
- }
- }
- }
- }
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