зеркало из https://github.com/mozilla/moz-skia.git
294 строки
9.9 KiB
C++
294 строки
9.9 KiB
C++
/*
|
|
* 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 "SkBlurMask.h"
|
|
#include "SkBlurMaskFilter.h"
|
|
#include "SkLayerDrawLooper.h"
|
|
#include "SkPaint.h"
|
|
#include "SkPath.h"
|
|
#include "SkRandom.h"
|
|
#include "SkReadBuffer.h"
|
|
#include "SkTypeface.h"
|
|
#include "SkUtils.h"
|
|
#include "SkWriteBuffer.h"
|
|
#include "SkXfermode.h"
|
|
#include "Test.h"
|
|
|
|
static size_t uni_to_utf8(const SkUnichar src[], void* dst, int count) {
|
|
char* u8 = (char*)dst;
|
|
for (int i = 0; i < count; ++i) {
|
|
int n = SkUTF8_FromUnichar(src[i], u8);
|
|
u8 += n;
|
|
}
|
|
return u8 - (char*)dst;
|
|
}
|
|
|
|
static size_t uni_to_utf16(const SkUnichar src[], void* dst, int count) {
|
|
uint16_t* u16 = (uint16_t*)dst;
|
|
for (int i = 0; i < count; ++i) {
|
|
int n = SkUTF16_FromUnichar(src[i], u16);
|
|
u16 += n;
|
|
}
|
|
return (char*)u16 - (char*)dst;
|
|
}
|
|
|
|
static size_t uni_to_utf32(const SkUnichar src[], void* dst, int count) {
|
|
SkUnichar* u32 = (SkUnichar*)dst;
|
|
if (src != u32) {
|
|
memcpy(u32, src, count * sizeof(SkUnichar));
|
|
}
|
|
return count * sizeof(SkUnichar);
|
|
}
|
|
|
|
static SkTypeface::Encoding paint2encoding(const SkPaint& paint) {
|
|
SkPaint::TextEncoding enc = paint.getTextEncoding();
|
|
SkASSERT(SkPaint::kGlyphID_TextEncoding != enc);
|
|
return (SkTypeface::Encoding)enc;
|
|
}
|
|
|
|
static int find_first_zero(const uint16_t glyphs[], int count) {
|
|
for (int i = 0; i < count; ++i) {
|
|
if (0 == glyphs[i]) {
|
|
return i;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static void test_cmap(skiatest::Reporter* reporter) {
|
|
static const int NGLYPHS = 64;
|
|
|
|
SkUnichar src[NGLYPHS];
|
|
SkUnichar dst[NGLYPHS]; // used for utf8, utf16, utf32 storage
|
|
|
|
static const struct {
|
|
size_t (*fSeedTextProc)(const SkUnichar[], void* dst, int count);
|
|
SkPaint::TextEncoding fEncoding;
|
|
} gRec[] = {
|
|
{ uni_to_utf8, SkPaint::kUTF8_TextEncoding },
|
|
{ uni_to_utf16, SkPaint::kUTF16_TextEncoding },
|
|
{ uni_to_utf32, SkPaint::kUTF32_TextEncoding },
|
|
};
|
|
|
|
SkRandom rand;
|
|
SkPaint paint;
|
|
paint.setTypeface(SkTypeface::RefDefault())->unref();
|
|
SkTypeface* face = paint.getTypeface();
|
|
|
|
for (int i = 0; i < 1000; ++i) {
|
|
// generate some random text
|
|
for (int j = 0; j < NGLYPHS; ++j) {
|
|
src[j] = ' ' + j;
|
|
}
|
|
// inject some random chars, to sometimes abort early
|
|
src[rand.nextU() & 63] = rand.nextU() & 0xFFF;
|
|
|
|
for (size_t k = 0; k < SK_ARRAY_COUNT(gRec); ++k) {
|
|
paint.setTextEncoding(gRec[k].fEncoding);
|
|
|
|
size_t len = gRec[k].fSeedTextProc(src, dst, NGLYPHS);
|
|
|
|
uint16_t glyphs0[NGLYPHS], glyphs1[NGLYPHS];
|
|
|
|
bool contains = paint.containsText(dst, len);
|
|
int nglyphs = paint.textToGlyphs(dst, len, glyphs0);
|
|
int first = face->charsToGlyphs(dst, paint2encoding(paint), glyphs1, NGLYPHS);
|
|
int index = find_first_zero(glyphs1, NGLYPHS);
|
|
|
|
REPORTER_ASSERT(reporter, NGLYPHS == nglyphs);
|
|
REPORTER_ASSERT(reporter, index == first);
|
|
REPORTER_ASSERT(reporter,
|
|
!memcmp(glyphs0, glyphs1, NGLYPHS * sizeof(uint16_t)));
|
|
if (contains) {
|
|
REPORTER_ASSERT(reporter, NGLYPHS == first);
|
|
} else {
|
|
REPORTER_ASSERT(reporter, NGLYPHS > first);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// temparary api for bicubic, just be sure we can set/clear it
|
|
static void test_filterlevel(skiatest::Reporter* reporter) {
|
|
SkPaint p0, p1;
|
|
|
|
REPORTER_ASSERT(reporter,
|
|
SkPaint::kNone_FilterLevel == p0.getFilterLevel());
|
|
|
|
static const SkPaint::FilterLevel gLevels[] = {
|
|
SkPaint::kNone_FilterLevel,
|
|
SkPaint::kLow_FilterLevel,
|
|
SkPaint::kMedium_FilterLevel,
|
|
SkPaint::kHigh_FilterLevel
|
|
};
|
|
for (size_t i = 0; i < SK_ARRAY_COUNT(gLevels); ++i) {
|
|
p0.setFilterLevel(gLevels[i]);
|
|
REPORTER_ASSERT(reporter, gLevels[i] == p0.getFilterLevel());
|
|
p1 = p0;
|
|
REPORTER_ASSERT(reporter, gLevels[i] == p1.getFilterLevel());
|
|
|
|
p0.reset();
|
|
REPORTER_ASSERT(reporter,
|
|
SkPaint::kNone_FilterLevel == p0.getFilterLevel());
|
|
}
|
|
}
|
|
|
|
static void test_copy(skiatest::Reporter* reporter) {
|
|
SkPaint paint;
|
|
// set a few member variables
|
|
paint.setStyle(SkPaint::kStrokeAndFill_Style);
|
|
paint.setTextAlign(SkPaint::kLeft_Align);
|
|
paint.setStrokeWidth(SkIntToScalar(2));
|
|
// set a few pointers
|
|
SkLayerDrawLooper* looper = new SkLayerDrawLooper();
|
|
paint.setLooper(looper)->unref();
|
|
SkMaskFilter* mask = SkBlurMaskFilter::Create(SkBlurMaskFilter::kNormal_BlurStyle,
|
|
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(1)));
|
|
paint.setMaskFilter(mask)->unref();
|
|
|
|
// copy the paint using the copy constructor and check they are the same
|
|
SkPaint copiedPaint = paint;
|
|
REPORTER_ASSERT(reporter, paint == copiedPaint);
|
|
|
|
#ifdef SK_BUILD_FOR_ANDROID
|
|
// the copy constructor should preserve the Generation ID
|
|
uint32_t paintGenID = paint.getGenerationID();
|
|
uint32_t copiedPaintGenID = copiedPaint.getGenerationID();
|
|
REPORTER_ASSERT(reporter, paintGenID == copiedPaintGenID);
|
|
REPORTER_ASSERT(reporter, !memcmp(&paint, &copiedPaint, sizeof(paint)));
|
|
#endif
|
|
|
|
// copy the paint using the equal operator and check they are the same
|
|
copiedPaint = paint;
|
|
REPORTER_ASSERT(reporter, paint == copiedPaint);
|
|
|
|
#ifdef SK_BUILD_FOR_ANDROID
|
|
// the equals operator should increment the Generation ID
|
|
REPORTER_ASSERT(reporter, paint.getGenerationID() == paintGenID);
|
|
REPORTER_ASSERT(reporter, copiedPaint.getGenerationID() != copiedPaintGenID);
|
|
copiedPaintGenID = copiedPaint.getGenerationID(); // reset to the new value
|
|
REPORTER_ASSERT(reporter, memcmp(&paint, &copiedPaint, sizeof(paint)));
|
|
#endif
|
|
|
|
// 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);
|
|
|
|
#ifdef SK_BUILD_FOR_ANDROID
|
|
// the reset function should increment the Generation ID
|
|
REPORTER_ASSERT(reporter, paint.getGenerationID() != paintGenID);
|
|
REPORTER_ASSERT(reporter, copiedPaint.getGenerationID() != copiedPaintGenID);
|
|
REPORTER_ASSERT(reporter, memcmp(&cleanPaint, &paint, sizeof(cleanPaint)));
|
|
REPORTER_ASSERT(reporter, memcmp(&cleanPaint, &copiedPaint, sizeof(cleanPaint)));
|
|
#endif
|
|
}
|
|
|
|
// found and fixed for webkit: mishandling when we hit recursion limit on
|
|
// mostly degenerate cubic flatness test
|
|
static void regression_cubic(skiatest::Reporter* 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 ?
|
|
SkScalarMul(paint.getStrokeWidth(), miter) :
|
|
paint.getStrokeWidth();
|
|
maxR.inset(-inset, -inset);
|
|
|
|
// test that our stroke didn't explode
|
|
REPORTER_ASSERT(reporter, maxR.contains(strokeR));
|
|
}
|
|
|
|
// found and fixed for android: not initializing rect for string's of length 0
|
|
static void regression_measureText(skiatest::Reporter* reporter) {
|
|
|
|
SkPaint paint;
|
|
paint.setTextSize(12.0f);
|
|
|
|
SkRect r;
|
|
r.setLTRB(SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN);
|
|
|
|
// test that the rect was reset
|
|
paint.measureText("", 0, &r, 1.0f);
|
|
REPORTER_ASSERT(reporter, r.isEmpty());
|
|
}
|
|
|
|
DEF_TEST(Paint, reporter) {
|
|
// TODO add general paint tests
|
|
test_copy(reporter);
|
|
|
|
// regression tests
|
|
regression_cubic(reporter);
|
|
regression_measureText(reporter);
|
|
|
|
test_filterlevel(reporter);
|
|
|
|
// need to implement charsToGlyphs on other backends (e.g. linux, win)
|
|
// before we can run this tests everywhere
|
|
if (false) {
|
|
test_cmap(reporter);
|
|
}
|
|
}
|
|
|
|
#define ASSERT(expr) REPORTER_ASSERT(r, expr)
|
|
|
|
DEF_TEST(Paint_FlatteningTraits, r) {
|
|
SkPaint paint;
|
|
paint.setColor(0x00AABBCC);
|
|
paint.setTextScaleX(1.0f); // Encoded despite being the default value.
|
|
paint.setTextSize(19);
|
|
paint.setXfermode(SkXfermode::Create(SkXfermode::kModulate_Mode))->unref();
|
|
paint.setLooper(NULL); // Ignored.
|
|
|
|
SkWriteBuffer writer;
|
|
SkPaint::FlatteningTraits::Flatten(writer, paint);
|
|
const size_t expectedBytesWritten = sizeof(void*) == 8 ? 48 : 40;
|
|
ASSERT(expectedBytesWritten == writer.bytesWritten());
|
|
|
|
const uint32_t* written = writer.getWriter32()->contiguousArray();
|
|
SkASSERT(written != NULL);
|
|
ASSERT(*written == ((1<<0) | (1<<2) | (1<<3) | (1<<9))); // Dirty bits for our 4.
|
|
|
|
SkReadBuffer reader(written, writer.bytesWritten());
|
|
SkPaint other;
|
|
SkPaint::FlatteningTraits::Unflatten(reader, &other);
|
|
ASSERT(reader.offset() == writer.bytesWritten());
|
|
|
|
// No matter the encoding, these must always hold.
|
|
ASSERT(other.getColor() == paint.getColor());
|
|
ASSERT(other.getTextScaleX() == paint.getTextScaleX());
|
|
ASSERT(other.getTextSize() == paint.getTextSize());
|
|
ASSERT(other.getLooper() == paint.getLooper());
|
|
|
|
// We have to be a little looser and compare just the modes. Pointers might not be the same.
|
|
SkXfermode::Mode otherMode, paintMode;
|
|
ASSERT(other.getXfermode()->asMode(&otherMode));
|
|
ASSERT(paint.getXfermode()->asMode(&paintMode));
|
|
ASSERT(otherMode == paintMode);
|
|
}
|