d074c3709a
Fixes b/6833339 Expand existing unittest to detect this (we needed to set both scale and skew on the paint) git-svn-id: http://skia.googlecode.com/svn/trunk@4647 2bbb7eff-a529-9590-31e7-b0007b416f81
170 lines
5.5 KiB
C++
170 lines
5.5 KiB
C++
/*
|
|
* Copyright 2012 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "Test.h"
|
|
#include "SkPaint.h"
|
|
#include "SkTypeface.h"
|
|
|
|
//#define DUMP_TABLES
|
|
|
|
#define kFontTableTag_head SkSetFourByteTag('h', 'e', 'a', 'd')
|
|
#define kFontTableTag_hhea SkSetFourByteTag('h', 'h', 'e', 'a')
|
|
#define kFontTableTag_maxp SkSetFourByteTag('m', 'a', 'x', 'p')
|
|
|
|
static const struct TagSize {
|
|
SkFontTableTag fTag;
|
|
size_t fSize;
|
|
} gKnownTableSizes[] = {
|
|
{ kFontTableTag_head, 54 },
|
|
{ kFontTableTag_hhea, 36 },
|
|
{ kFontTableTag_maxp, 32 },
|
|
};
|
|
|
|
static void test_tables(skiatest::Reporter* reporter, SkTypeface* face) {
|
|
SkFontID fontID = face->uniqueID();
|
|
if (false) { // avoid bit rot, suppress warning
|
|
REPORTER_ASSERT(reporter, fontID);
|
|
}
|
|
|
|
int count = face->countTables();
|
|
|
|
SkAutoTMalloc<SkFontTableTag> storage(count);
|
|
SkFontTableTag* tags = storage.get();
|
|
|
|
int count2 = face->getTableTags(tags);
|
|
REPORTER_ASSERT(reporter, count2 == count);
|
|
|
|
for (int i = 0; i < count; ++i) {
|
|
size_t size = face->getTableSize(tags[i]);
|
|
REPORTER_ASSERT(reporter, size > 0);
|
|
|
|
#ifdef DUMP_TABLES
|
|
char name[5];
|
|
name[0] = (tags[i] >> 24) & 0xFF;
|
|
name[1] = (tags[i] >> 16) & 0xFF;
|
|
name[2] = (tags[i] >> 8) & 0xFF;
|
|
name[3] = (tags[i] >> 0) & 0xFF;
|
|
name[4] = 0;
|
|
SkDebugf("%s %d\n", name, size);
|
|
#endif
|
|
|
|
for (size_t j = 0; j < SK_ARRAY_COUNT(gKnownTableSizes); ++j) {
|
|
if (gKnownTableSizes[j].fTag == tags[i]) {
|
|
REPORTER_ASSERT(reporter, gKnownTableSizes[j].fSize == size);
|
|
}
|
|
}
|
|
|
|
// do we get the same size from GetTableData and GetTableSize
|
|
{
|
|
SkAutoMalloc data(size);
|
|
size_t size2 = face->getTableData(tags[i], 0, size, data.get());
|
|
REPORTER_ASSERT(reporter, size2 == size);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void test_tables(skiatest::Reporter* reporter) {
|
|
static const char* const gNames[] = {
|
|
NULL, // default font
|
|
"Arial", "Times", "Times New Roman", "Helvetica", "Courier",
|
|
"Courier New",
|
|
};
|
|
|
|
for (size_t i = 0; i < SK_ARRAY_COUNT(gNames); ++i) {
|
|
SkTypeface* face = SkTypeface::CreateFromName(gNames[i],
|
|
SkTypeface::kNormal);
|
|
if (face) {
|
|
#ifdef DUMP_TABLES
|
|
SkDebugf("%s\n", gNames[i]);
|
|
#endif
|
|
test_tables(reporter, face);
|
|
face->unref();
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Verifies that the advance values returned by generateAdvance and
|
|
* generateMetrics match.
|
|
*/
|
|
static void test_advances(skiatest::Reporter* reporter) {
|
|
static const char* const faces[] = {
|
|
NULL, // default font
|
|
"Arial", "Times", "Times New Roman", "Helvetica", "Courier",
|
|
"Courier New", "Verdana", "monospace",
|
|
};
|
|
|
|
static const struct {
|
|
SkPaint::Hinting hinting;
|
|
unsigned flags;
|
|
} settings[] = {
|
|
{ SkPaint::kNo_Hinting, 0 },
|
|
{ SkPaint::kNo_Hinting, SkPaint::kLinearText_Flag },
|
|
{ SkPaint::kNo_Hinting, SkPaint::kSubpixelText_Flag },
|
|
{ SkPaint::kSlight_Hinting, 0 },
|
|
{ SkPaint::kSlight_Hinting, SkPaint::kLinearText_Flag },
|
|
{ SkPaint::kSlight_Hinting, SkPaint::kSubpixelText_Flag },
|
|
{ SkPaint::kNormal_Hinting, 0 },
|
|
{ SkPaint::kNormal_Hinting, SkPaint::kLinearText_Flag },
|
|
{ SkPaint::kNormal_Hinting, SkPaint::kSubpixelText_Flag },
|
|
};
|
|
|
|
static const struct {
|
|
SkScalar fScaleX;
|
|
SkScalar fSkewX;
|
|
} gScaleRec[] = {
|
|
{ SK_Scalar1, 0 },
|
|
{ SK_Scalar1/2, 0 },
|
|
// these two exercise obliquing (skew)
|
|
{ SK_Scalar1, -SK_Scalar1/4 },
|
|
{ SK_Scalar1/2, -SK_Scalar1/4 },
|
|
};
|
|
|
|
SkPaint paint;
|
|
char txt[] = "long.text.with.lots.of.dots.";
|
|
|
|
for (size_t i = 0; i < SK_ARRAY_COUNT(faces); i++) {
|
|
SkTypeface* face = SkTypeface::CreateFromName(faces[i], SkTypeface::kNormal);
|
|
paint.setTypeface(face);
|
|
|
|
for (size_t j = 0; j < SK_ARRAY_COUNT(settings); j++) {
|
|
paint.setHinting(settings[j].hinting);
|
|
paint.setLinearText((settings[j].flags & SkPaint::kLinearText_Flag) != 0);
|
|
paint.setSubpixelText((settings[j].flags & SkPaint::kSubpixelText_Flag) != 0);
|
|
|
|
for (size_t k = 0; k < SK_ARRAY_COUNT(gScaleRec); ++k) {
|
|
paint.setTextScaleX(gScaleRec[k].fScaleX);
|
|
paint.setTextSkewX(gScaleRec[k].fSkewX);
|
|
|
|
SkRect bounds;
|
|
|
|
// For no hinting and light hinting this should take the
|
|
// optimized generateAdvance path.
|
|
SkScalar width1 = paint.measureText(txt, strlen(txt));
|
|
|
|
// Requesting the bounds forces a generateMetrics call.
|
|
SkScalar width2 = paint.measureText(txt, strlen(txt), &bounds);
|
|
|
|
// SkDebugf("Font: %s, generateAdvance: %f, generateMetrics: %f\n",
|
|
// faces[i], SkScalarToFloat(width1), SkScalarToFloat(width2));
|
|
|
|
REPORTER_ASSERT(reporter, width1 == width2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void TestFontHost(skiatest::Reporter* reporter) {
|
|
test_tables(reporter);
|
|
test_advances(reporter);
|
|
}
|
|
|
|
// need tests for SkStrSearch
|
|
|
|
#include "TestClassDef.h"
|
|
DEFINE_TESTCLASS("FontHost", FontHostTestClass, TestFontHost)
|