e0e7cfe44b
The goal here is to get people to start using the new random number generator, while leaving the old one in place so we don't have to rebaseline GMs. R=reed@google.com, bsalomon@google.com Author: jvanverth@google.com Review URL: https://chromiumcodereview.appspot.com/23576015 git-svn-id: http://skia.googlecode.com/svn/trunk@11169 2bbb7eff-a529-9590-31e7-b0007b416f81
257 lines
8.6 KiB
C++
257 lines
8.6 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 "Test.h"
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#include "SkBlurMask.h"
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#include "SkBlurMaskFilter.h"
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#include "SkLayerDrawLooper.h"
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#include "SkPath.h"
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#include "SkPaint.h"
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#include "SkRandom.h"
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#include "SkTypeface.h"
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#include "SkUtils.h"
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static size_t uni_to_utf8(const SkUnichar src[], void* dst, int count) {
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char* u8 = (char*)dst;
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for (int i = 0; i < count; ++i) {
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int n = SkUTF8_FromUnichar(src[i], u8);
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u8 += n;
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}
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return u8 - (char*)dst;
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}
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static size_t uni_to_utf16(const SkUnichar src[], void* dst, int count) {
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uint16_t* u16 = (uint16_t*)dst;
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for (int i = 0; i < count; ++i) {
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int n = SkUTF16_FromUnichar(src[i], u16);
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u16 += n;
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}
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return (char*)u16 - (char*)dst;
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}
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static size_t uni_to_utf32(const SkUnichar src[], void* dst, int count) {
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SkUnichar* u32 = (SkUnichar*)dst;
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if (src != u32) {
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memcpy(u32, src, count * sizeof(SkUnichar));
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}
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return count * sizeof(SkUnichar);
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}
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static SkTypeface::Encoding paint2encoding(const SkPaint& paint) {
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SkPaint::TextEncoding enc = paint.getTextEncoding();
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SkASSERT(SkPaint::kGlyphID_TextEncoding != enc);
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return (SkTypeface::Encoding)enc;
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}
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static int find_first_zero(const uint16_t glyphs[], int count) {
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for (int i = 0; i < count; ++i) {
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if (0 == glyphs[i]) {
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return i;
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}
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}
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return count;
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}
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static void test_cmap(skiatest::Reporter* reporter) {
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static const int NGLYPHS = 64;
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SkUnichar src[NGLYPHS];
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SkUnichar dst[NGLYPHS]; // used for utf8, utf16, utf32 storage
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static const struct {
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size_t (*fSeedTextProc)(const SkUnichar[], void* dst, int count);
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SkPaint::TextEncoding fEncoding;
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} gRec[] = {
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{ uni_to_utf8, SkPaint::kUTF8_TextEncoding },
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{ uni_to_utf16, SkPaint::kUTF16_TextEncoding },
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{ uni_to_utf32, SkPaint::kUTF32_TextEncoding },
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};
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SkRandom rand;
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SkPaint paint;
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paint.setTypeface(SkTypeface::RefDefault())->unref();
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SkTypeface* face = paint.getTypeface();
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for (int i = 0; i < 1000; ++i) {
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// generate some random text
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for (int j = 0; j < NGLYPHS; ++j) {
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src[j] = ' ' + j;
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}
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// inject some random chars, to sometimes abort early
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src[rand.nextU() & 63] = rand.nextU() & 0xFFF;
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for (size_t k = 0; k < SK_ARRAY_COUNT(gRec); ++k) {
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paint.setTextEncoding(gRec[k].fEncoding);
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size_t len = gRec[k].fSeedTextProc(src, dst, NGLYPHS);
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uint16_t glyphs0[NGLYPHS], glyphs1[NGLYPHS];
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bool contains = paint.containsText(dst, len);
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int nglyphs = paint.textToGlyphs(dst, len, glyphs0);
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int first = face->charsToGlyphs(dst, paint2encoding(paint), glyphs1, NGLYPHS);
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int index = find_first_zero(glyphs1, NGLYPHS);
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REPORTER_ASSERT(reporter, NGLYPHS == nglyphs);
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REPORTER_ASSERT(reporter, index == first);
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REPORTER_ASSERT(reporter,
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!memcmp(glyphs0, glyphs1, NGLYPHS * sizeof(uint16_t)));
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if (contains) {
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REPORTER_ASSERT(reporter, NGLYPHS == first);
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} else {
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REPORTER_ASSERT(reporter, NGLYPHS > first);
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}
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}
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}
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}
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// temparary api for bicubic, just be sure we can set/clear it
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static void test_filterlevel(skiatest::Reporter* reporter) {
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SkPaint p0, p1;
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REPORTER_ASSERT(reporter,
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SkPaint::kNone_FilterLevel == p0.getFilterLevel());
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static const SkPaint::FilterLevel gLevels[] = {
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SkPaint::kNone_FilterLevel,
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SkPaint::kLow_FilterLevel,
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SkPaint::kMedium_FilterLevel,
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SkPaint::kHigh_FilterLevel
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};
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for (size_t i = 0; i < SK_ARRAY_COUNT(gLevels); ++i) {
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p0.setFilterLevel(gLevels[i]);
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REPORTER_ASSERT(reporter, gLevels[i] == p0.getFilterLevel());
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p1 = p0;
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REPORTER_ASSERT(reporter, gLevels[i] == p1.getFilterLevel());
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p0.reset();
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REPORTER_ASSERT(reporter,
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SkPaint::kNone_FilterLevel == p0.getFilterLevel());
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}
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}
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static void test_copy(skiatest::Reporter* reporter) {
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SkPaint paint;
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// set a few member variables
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paint.setStyle(SkPaint::kStrokeAndFill_Style);
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paint.setTextAlign(SkPaint::kLeft_Align);
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paint.setStrokeWidth(SkIntToScalar(2));
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// set a few pointers
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SkLayerDrawLooper* looper = new SkLayerDrawLooper();
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paint.setLooper(looper)->unref();
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SkMaskFilter* mask = SkBlurMaskFilter::Create(SkBlurMaskFilter::kNormal_BlurStyle,
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SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(1)));
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paint.setMaskFilter(mask)->unref();
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// copy the paint using the copy constructor and check they are the same
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SkPaint copiedPaint = paint;
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REPORTER_ASSERT(reporter, paint == copiedPaint);
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#ifdef SK_BUILD_FOR_ANDROID
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// the copy constructor should preserve the Generation ID
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uint32_t paintGenID = paint.getGenerationID();
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uint32_t copiedPaintGenID = copiedPaint.getGenerationID();
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REPORTER_ASSERT(reporter, paintGenID == copiedPaintGenID);
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REPORTER_ASSERT(reporter, !memcmp(&paint, &copiedPaint, sizeof(paint)));
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#endif
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// copy the paint using the equal operator and check they are the same
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copiedPaint = paint;
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REPORTER_ASSERT(reporter, paint == copiedPaint);
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#ifdef SK_BUILD_FOR_ANDROID
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// the equals operator should increment the Generation ID
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REPORTER_ASSERT(reporter, paint.getGenerationID() == paintGenID);
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REPORTER_ASSERT(reporter, copiedPaint.getGenerationID() != copiedPaintGenID);
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copiedPaintGenID = copiedPaint.getGenerationID(); // reset to the new value
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REPORTER_ASSERT(reporter, memcmp(&paint, &copiedPaint, sizeof(paint)));
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#endif
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// clean the paint and check they are back to their initial states
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SkPaint cleanPaint;
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paint.reset();
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copiedPaint.reset();
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REPORTER_ASSERT(reporter, cleanPaint == paint);
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REPORTER_ASSERT(reporter, cleanPaint == copiedPaint);
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#ifdef SK_BUILD_FOR_ANDROID
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// the reset function should increment the Generation ID
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REPORTER_ASSERT(reporter, paint.getGenerationID() != paintGenID);
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REPORTER_ASSERT(reporter, copiedPaint.getGenerationID() != copiedPaintGenID);
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REPORTER_ASSERT(reporter, memcmp(&cleanPaint, &paint, sizeof(cleanPaint)));
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REPORTER_ASSERT(reporter, memcmp(&cleanPaint, &copiedPaint, sizeof(cleanPaint)));
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#endif
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}
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// found and fixed for webkit: mishandling when we hit recursion limit on
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// mostly degenerate cubic flatness test
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static void regression_cubic(skiatest::Reporter* reporter) {
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SkPath path, stroke;
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SkPaint paint;
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path.moveTo(SkFloatToScalar(460.2881309415525f),
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SkFloatToScalar(303.250847066498f));
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path.cubicTo(SkFloatToScalar(463.36378422175284f),
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SkFloatToScalar(302.1169735073363f),
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SkFloatToScalar(456.32239330810046f),
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SkFloatToScalar(304.720354932878f),
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SkFloatToScalar(453.15255460013304f),
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SkFloatToScalar(305.788586869862f));
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SkRect fillR, strokeR;
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fillR = path.getBounds();
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(SkIntToScalar(2));
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paint.getFillPath(path, &stroke);
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strokeR = stroke.getBounds();
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SkRect maxR = fillR;
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SkScalar miter = SkMaxScalar(SK_Scalar1, paint.getStrokeMiter());
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SkScalar inset = paint.getStrokeJoin() == SkPaint::kMiter_Join ?
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SkScalarMul(paint.getStrokeWidth(), miter) :
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paint.getStrokeWidth();
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maxR.inset(-inset, -inset);
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// test that our stroke didn't explode
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REPORTER_ASSERT(reporter, maxR.contains(strokeR));
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}
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// found and fixed for android: not initializing rect for string's of length 0
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static void regression_measureText(skiatest::Reporter* reporter) {
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SkPaint paint;
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paint.setTextSize(SkFloatToScalar(12.0f));
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SkRect r;
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r.setLTRB(SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN);
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// test that the rect was reset
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paint.measureText("", 0, &r, SkFloatToScalar(1.0f));
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REPORTER_ASSERT(reporter, r.isEmpty());
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}
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static void TestPaint(skiatest::Reporter* reporter) {
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// TODO add general paint tests
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test_copy(reporter);
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// regression tests
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regression_cubic(reporter);
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regression_measureText(reporter);
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test_filterlevel(reporter);
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// need to implement charsToGlyphs on other backends (e.g. linux, win)
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// before we can run this tests everywhere
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if (false) {
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test_cmap(reporter);
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}
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("Paint", TestPaintClass, TestPaint)
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