1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8 #include "gm.h"
9
10 namespace skiagm {
11
12 static const char* gConfigNames[] = {
13 "unknown config",
14 "A1",
15 "A8",
16 "Index8",
17 "565",
18 "4444",
19 "8888"
20 };
21
22 SkBitmap::Config gConfigs[] = {
23 SkBitmap::kRGB_565_Config,
24 SkBitmap::kARGB_4444_Config,
25 SkBitmap::kARGB_8888_Config,
26 };
27
28 #define NUM_CONFIGS (sizeof(gConfigs) / sizeof(SkBitmap::Config))
29
draw_checks(SkCanvas * canvas,int width,int height)30 static void draw_checks(SkCanvas* canvas, int width, int height) {
31 SkPaint paint;
32 paint.setColor(SK_ColorRED);
33 canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(0),
34 SkIntToScalar(width / 2), SkIntToScalar(height / 2), paint);
35 paint.setColor(SK_ColorGREEN);
36 canvas->drawRectCoords(SkIntToScalar(width / 2), SkIntToScalar(0),
37 SkIntToScalar(width), SkIntToScalar(height / 2), paint);
38 paint.setColor(SK_ColorBLUE);
39 canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(height / 2),
40 SkIntToScalar(width / 2), SkIntToScalar(height), paint);
41 paint.setColor(SK_ColorYELLOW);
42 canvas->drawRectCoords(SkIntToScalar(width / 2), SkIntToScalar(height / 2),
43 SkIntToScalar(width), SkIntToScalar(height), paint);
44 }
45
46 class BitmapCopyGM : public GM {
47 public:
48 SkBitmap fDst[NUM_CONFIGS];
49
BitmapCopyGM()50 BitmapCopyGM() {
51 this->setBGColor(0xFFDDDDDD);
52 }
53
54 protected:
onShortName()55 virtual SkString onShortName() {
56 return SkString("bitmapcopy");
57 }
58
onISize()59 virtual SkISize onISize() {
60 return make_isize(540, 330);
61 }
62
onDraw(SkCanvas * canvas)63 virtual void onDraw(SkCanvas* canvas) {
64 SkPaint paint;
65 SkScalar horizMargin(SkIntToScalar(10));
66 SkScalar vertMargin(SkIntToScalar(10));
67
68 draw_checks(canvas, 40, 40);
69 SkBitmap src = canvas->getDevice()->accessBitmap(false);
70
71 for (unsigned i = 0; i < NUM_CONFIGS; ++i) {
72 if (!src.deepCopyTo(&fDst[i], gConfigs[i])) {
73 src.copyTo(&fDst[i], gConfigs[i]);
74 }
75 }
76
77 canvas->clear(0xFFDDDDDD);
78 paint.setAntiAlias(true);
79 SkScalar width = SkIntToScalar(40);
80 SkScalar height = SkIntToScalar(40);
81 if (paint.getFontSpacing() > height) {
82 height = paint.getFontSpacing();
83 }
84 for (unsigned i = 0; i < NUM_CONFIGS; i++) {
85 const char* name = gConfigNames[src.config()];
86 SkScalar textWidth = paint.measureText(name, strlen(name));
87 if (textWidth > width) {
88 width = textWidth;
89 }
90 }
91 SkScalar horizOffset = width + horizMargin;
92 SkScalar vertOffset = height + vertMargin;
93 canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
94
95 for (unsigned i = 0; i < NUM_CONFIGS; i++) {
96 canvas->save();
97 // Draw destination config name
98 const char* name = gConfigNames[fDst[i].config()];
99 SkScalar textWidth = paint.measureText(name, strlen(name));
100 SkScalar x = (width - textWidth) / SkScalar(2);
101 SkScalar y = paint.getFontSpacing() / SkScalar(2);
102 canvas->drawText(name, strlen(name), x, y, paint);
103
104 // Draw destination bitmap
105 canvas->translate(0, vertOffset);
106 x = (width - 40) / SkScalar(2);
107 canvas->drawBitmap(fDst[i], x, 0, &paint);
108 canvas->restore();
109
110 canvas->translate(horizOffset, 0);
111 }
112 }
113
onGetFlags() const114 virtual uint32_t onGetFlags() const { return kSkipPicture_Flag
115 | kSkipPipe_Flag; }
116
117 private:
118 typedef GM INHERITED;
119 };
120
121 //////////////////////////////////////////////////////////////////////////////
122
123 #ifndef SK_BUILD_FOR_ANDROID
MyFactory(void *)124 static GM* MyFactory(void*) { return new BitmapCopyGM; }
125 static GMRegistry reg(MyFactory);
126 #endif
127 }
128