зеркало из https://github.com/mozilla/moz-skia.git
116 строки
3.9 KiB
C++
116 строки
3.9 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 "SkTypes.h"
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#include "Test.h"
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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 "SkPaint.h"
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#include "SkPoint.h"
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#include "SkRect.h"
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///////////////////////////////////////////////////////////////////////////////
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static const SkColor bgColor = SK_ColorWHITE;
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static void create(SkBitmap* bm, SkIRect bound, SkBitmap::Config config) {
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bm->setConfig(config, bound.width(), bound.height());
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bm->allocPixels();
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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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static void test_drawText(skiatest::Reporter* reporter) {
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SkPaint paint;
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paint.setColor(SK_ColorGRAY);
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paint.setTextSize(SkIntToScalar(20));
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SkIRect drawTextRect = SkIRect::MakeWH(64, 64);
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SkBitmap drawTextBitmap;
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create(&drawTextBitmap, drawTextRect, SkBitmap::kARGB_8888_Config);
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SkCanvas drawTextCanvas(drawTextBitmap);
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SkIRect drawPosTextRect = SkIRect::MakeWH(64, 64);
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SkBitmap drawPosTextBitmap;
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create(&drawPosTextBitmap, drawPosTextRect, SkBitmap::kARGB_8888_Config);
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SkCanvas drawPosTextCanvas(drawPosTextBitmap);
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for (float offsetY = 0.0f; offsetY < 1.0f; offsetY += (1.0f / 16.0f)) {
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for (float offsetX = 0.0f; offsetX < 1.0f; offsetX += (1.0f / 16.0f)) {
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SkPoint point = SkPoint::Make(SkFloatToScalar(25.0f + offsetX),
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SkFloatToScalar(25.0f + offsetY));
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for (int align = 0; align < SkPaint::kAlignCount; ++align) {
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paint.setTextAlign(static_cast<SkPaint::Align>(align));
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for (unsigned int flags = 0; flags < (1 << 3); ++flags) {
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static const unsigned int antiAliasFlag = 1;
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static const unsigned int subpixelFlag = 1 << 1;
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static const unsigned int lcdFlag = 1 << 2;
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paint.setAntiAlias(SkToBool(flags & antiAliasFlag));
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paint.setSubpixelText(SkToBool(flags & subpixelFlag));
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paint.setLCDRenderText(SkToBool(flags & lcdFlag));
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// Test: drawText and drawPosText draw the same.
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drawBG(&drawTextCanvas);
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drawTextCanvas.drawText("A", 1, point.fX, point.fY, paint);
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drawBG(&drawPosTextCanvas);
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drawPosTextCanvas.drawPosText("A", 1, &point, paint);
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REPORTER_ASSERT(reporter,
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compare(drawTextBitmap, drawTextRect,
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drawPosTextBitmap, drawPosTextRect));
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}
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}
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}
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}
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("DrawText_DrawPosText", DrawTextTestClass, test_drawText)
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