5f213d9627
SkTypeface already requires typeface streams to support SkStreamAsset in practice, and in practice all users are already supplying them. Review URL: https://codereview.chromium.org/869763002
117 lines
3.5 KiB
C++
117 lines
3.5 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 "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkColor.h"
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#include "SkFontDescriptor.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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SkAutoLockPixels alpRef(ref);
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SkAutoLockPixels alpTest(test);
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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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paint.setTextSize(SkIntToScalar(30));
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SkTypeface* fTypeface = SkTypeface::CreateFromName("Georgia",
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SkTypeface::kNormal);
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SkSafeUnref(paint.setTypeface(fTypeface));
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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.drawText("A", 1, point.fX, point.fY, paint);
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SkTypeface* origTypeface = paint.getTypeface();
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SkAutoTUnref<SkTypeface> aur;
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if (NULL == origTypeface) {
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origTypeface = aur.reset(SkTypeface::RefDefault());
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}
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int ttcIndex;
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SkAutoTDelete<SkStreamAsset> fontData(origTypeface->openStream(&ttcIndex));
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SkTypeface* streamTypeface = SkTypeface::CreateFromStream(fontData.detach());
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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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SkSafeUnref(paint.setTypeface(streamTypeface));
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drawBG(&streamCanvas);
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streamCanvas.drawPosText("A", 1, &point, 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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