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
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
test_fontHostStream(skiatest::Reporter * reporter)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