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