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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 "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColor.h"
#include "SkFontDescriptor.h"
#include "SkGraphics.h"
#include "SkPaint.h"
#include "SkPoint.h"
#include "SkRect.h"
#include "SkStream.h"
#include "SkTypeface.h"
#include "SkTypes.h"
#include "Test.h"
static const SkColor bgColor = SK_ColorWHITE;
static void create(SkBitmap* bm, SkIRect bound) {
bm->allocN32Pixels(bound.width(), bound.height());
}
static void drawBG(SkCanvas* canvas) {
canvas->drawColor(bgColor);
}
/** Assumes that the ref draw was completely inside ref canvas --
implies that everything outside is "bgColor".
Checks that all overlap is the same and that all non-overlap on the
ref is "bgColor".
*/
static bool compare(const SkBitmap& ref, const SkIRect& iref,
const SkBitmap& test, const SkIRect& itest)
{
const int xOff = itest.fLeft - iref.fLeft;
const int yOff = itest.fTop - iref.fTop;
for (int y = 0; y < test.height(); ++y) {
for (int x = 0; x < test.width(); ++x) {
SkColor testColor = test.getColor(x, y);
int refX = x + xOff;
int refY = y + yOff;
SkColor refColor;
if (refX >= 0 && refX < ref.width() &&
refY >= 0 && refY < ref.height())
{
refColor = ref.getColor(refX, refY);
} else {
refColor = bgColor;
}
if (refColor != testColor) {
return false;
}
}
}
return true;
}
DEF_TEST(FontHostStream, reporter) {
{
SkPaint paint;
paint.setColor(SK_ColorGRAY);
paint.setTextSize(SkIntToScalar(30));
paint.setTypeface(SkTypeface::MakeFromName("Georgia", SkFontStyle()));
SkIRect origRect = SkIRect::MakeWH(64, 64);
SkBitmap origBitmap;
create(&origBitmap, origRect);
SkCanvas origCanvas(origBitmap);
SkIRect streamRect = SkIRect::MakeWH(64, 64);
SkBitmap streamBitmap;
create(&streamBitmap, streamRect);
SkCanvas streamCanvas(streamBitmap);
SkPoint point = SkPoint::Make(24, 32);
// Test: origTypeface and streamTypeface from orig data draw the same
drawBG(&origCanvas);
origCanvas.drawString("A", point.fX, point.fY, paint);
sk_sp<SkTypeface> typeface(paint.getTypeface() ? paint.refTypeface()
: SkTypeface::MakeDefault());
int ttcIndex;
std::unique_ptr<SkStreamAsset> fontData(typeface->openStream(&ttcIndex));
if (!fontData) {
// We're using a SkTypeface that can't give us a stream.
// This happens with portable or system fonts. End the test now.
return;
}
sk_sp<SkTypeface> streamTypeface(SkTypeface::MakeFromStream(fontData.release()));
SkFontDescriptor desc;
bool isLocalStream = false;
streamTypeface->getFontDescriptor(&desc, &isLocalStream);
REPORTER_ASSERT(reporter, isLocalStream);
paint.setTypeface(streamTypeface);
drawBG(&streamCanvas);
streamCanvas.drawPosText("A", 1, &point, paint);
REPORTER_ASSERT(reporter,
compare(origBitmap, origRect, streamBitmap, streamRect));
}
//Make sure the typeface is deleted and removed.
SkGraphics::PurgeFontCache();
}
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