1 /* 2 * Copyright 2011 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 #include "SkTypes.h" 8 9 #include "Test.h" 10 #include "SkBitmap.h" 11 #include "SkCanvas.h" 12 #include "SkColor.h" 13 #include "SkFontHost.h" 14 #include "SkGraphics.h" 15 #include "SkPaint.h" 16 #include "SkPoint.h" 17 #include "SkRect.h" 18 #include "SkTypeface.h" 19 20 /////////////////////////////////////////////////////////////////////////////// 21 22 static const SkColor bgColor = SK_ColorWHITE; 23 24 static void create(SkBitmap* bm, SkIRect bound, SkBitmap::Config config) { 25 bm->setConfig(config, bound.width(), bound.height()); 26 bm->allocPixels(); 27 } 28 29 static void drawBG(SkCanvas* canvas) { 30 canvas->drawColor(bgColor); 31 } 32 33 /** Assumes that the ref draw was completely inside ref canvas -- 34 implies that everything outside is "bgColor". 35 Checks that all overlap is the same and that all non-overlap on the 36 ref is "bgColor". 37 */ 38 static bool compare(const SkBitmap& ref, const SkIRect& iref, 39 const SkBitmap& test, const SkIRect& itest) 40 { 41 const int xOff = itest.fLeft - iref.fLeft; 42 const int yOff = itest.fTop - iref.fTop; 43 44 SkAutoLockPixels alpRef(ref); 45 SkAutoLockPixels alpTest(test); 46 47 for (int y = 0; y < test.height(); ++y) { 48 for (int x = 0; x < test.width(); ++x) { 49 SkColor testColor = test.getColor(x, y); 50 int refX = x + xOff; 51 int refY = y + yOff; 52 SkColor refColor; 53 if (refX >= 0 && refX < ref.width() && 54 refY >= 0 && refY < ref.height()) 55 { 56 refColor = ref.getColor(refX, refY); 57 } else { 58 refColor = bgColor; 59 } 60 if (refColor != testColor) { 61 return false; 62 } 63 } 64 } 65 return true; 66 } 67 68 static void test_fontHostStream(skiatest::Reporter* reporter) { 69 70 { 71 SkPaint paint; 72 paint.setColor(SK_ColorGRAY); 73 paint.setTextSize(SkIntToScalar(30)); 74 75 paint.setTypeface(SkTypeface::CreateFromName("Georgia", SkTypeface::kNormal))->unref(); 76 77 SkIRect origRect = SkIRect::MakeWH(64, 64); 78 SkBitmap origBitmap; 79 create(&origBitmap, origRect, SkBitmap::kARGB_8888_Config); 80 SkCanvas origCanvas(origBitmap); 81 82 SkIRect streamRect = SkIRect::MakeWH(64, 64); 83 SkBitmap streamBitmap; 84 create(&streamBitmap, streamRect, SkBitmap::kARGB_8888_Config); 85 SkCanvas streamCanvas(streamBitmap); 86 87 SkPoint point = SkPoint::Make(24, 32); 88 89 // Test: origTypeface and streamTypeface from orig data draw the same 90 drawBG(&origCanvas); 91 origCanvas.drawText("A", 1, point.fX, point.fY, paint); 92 93 SkTypeface* origTypeface = paint.getTypeface(); 94 const SkFontID typefaceID = SkTypeface::UniqueID(origTypeface); 95 SkStream* fontData = SkFontHost::OpenStream(typefaceID); 96 SkTypeface* streamTypeface = SkTypeface::CreateFromStream(fontData); 97 SkSafeUnref(paint.setTypeface(streamTypeface)); 98 drawBG(&streamCanvas); 99 streamCanvas.drawPosText("A", 1, &point, paint); 100 101 REPORTER_ASSERT(reporter, 102 compare(origBitmap, origRect, streamBitmap, streamRect)); 103 } 104 //Make sure the typeface is deleted and removed. 105 SkGraphics::PurgeFontCache(); 106 } 107 108 #include "TestClassDef.h" 109 DEFINE_TESTCLASS("FontHost::CreateTypefaceFromStream", FontHostStreamTestClass, test_fontHostStream) 110