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
8 #include "Test.h"
9 #include "TestClassDef.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 "SkStream.h"
19 #include "SkTypeface.h"
20 #include "SkTypes.h"
21
22 static const SkColor bgColor = SK_ColorWHITE;
23
create(SkBitmap * bm,SkIRect bound,SkBitmap::Config config)24 static void create(SkBitmap* bm, SkIRect bound, SkBitmap::Config config) {
25 bm->setConfig(config, bound.width(), bound.height());
26 bm->allocPixels();
27 }
28
drawBG(SkCanvas * canvas)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 */
compare(const SkBitmap & ref,const SkIRect & iref,const SkBitmap & test,const SkIRect & itest)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
DEF_TEST(FontHostStream,reporter)68 DEF_TEST(FontHostStream, reporter) {
69 {
70 SkPaint paint;
71 paint.setColor(SK_ColorGRAY);
72 paint.setTextSize(SkIntToScalar(30));
73
74 SkTypeface* fTypeface = SkTypeface::CreateFromName("Georgia",
75 SkTypeface::kNormal);
76 SkSafeUnref(paint.setTypeface(fTypeface));
77
78 SkIRect origRect = SkIRect::MakeWH(64, 64);
79 SkBitmap origBitmap;
80 create(&origBitmap, origRect, SkBitmap::kARGB_8888_Config);
81 SkCanvas origCanvas(origBitmap);
82
83 SkIRect streamRect = SkIRect::MakeWH(64, 64);
84 SkBitmap streamBitmap;
85 create(&streamBitmap, streamRect, SkBitmap::kARGB_8888_Config);
86 SkCanvas streamCanvas(streamBitmap);
87
88 SkPoint point = SkPoint::Make(24, 32);
89
90 // Test: origTypeface and streamTypeface from orig data draw the same
91 drawBG(&origCanvas);
92 origCanvas.drawText("A", 1, point.fX, point.fY, paint);
93
94 SkTypeface* origTypeface = paint.getTypeface();
95 SkAutoTUnref<SkTypeface> aur;
96 if (NULL == origTypeface) {
97 origTypeface = aur.reset(SkTypeface::RefDefault());
98 }
99
100 int ttcIndex;
101 SkAutoTUnref<SkStream> fontData(origTypeface->openStream(&ttcIndex));
102 SkTypeface* streamTypeface = SkTypeface::CreateFromStream(fontData);
103 SkSafeUnref(paint.setTypeface(streamTypeface));
104 drawBG(&streamCanvas);
105 streamCanvas.drawPosText("A", 1, &point, paint);
106
107 REPORTER_ASSERT(reporter,
108 compare(origBitmap, origRect, streamBitmap, streamRect));
109 }
110 //Make sure the typeface is deleted and removed.
111 SkGraphics::PurgeFontCache();
112 }
113