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 "gm/gm.h"
9 #include "include/core/SkBitmap.h"
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkColor.h"
12 #include "include/core/SkFont.h"
13 #include "include/core/SkFontTypes.h"
14 #include "include/core/SkImageInfo.h"
15 #include "include/core/SkPaint.h"
16 #include "include/core/SkRect.h"
17 #include "include/core/SkScalar.h"
18 #include "include/core/SkSize.h"
19 #include "include/core/SkString.h"
20 #include "include/core/SkTypeface.h"
21 #include "include/core/SkTypes.h"
22 #include "tools/ToolUtils.h"
23
24 #include <string.h>
25
26 namespace {
27
color_type_name(SkColorType colorType)28 static const char* color_type_name(SkColorType colorType) {
29 switch (colorType) {
30 case kUnknown_SkColorType: return "unknown";
31 case kAlpha_8_SkColorType: return "A8";
32 case kRGB_565_SkColorType: return "565";
33 case kARGB_4444_SkColorType: return "4444";
34 case kRGBA_8888_SkColorType: return "8888";
35 case kRGB_888x_SkColorType: return "888x";
36 case kBGRA_8888_SkColorType: return "8888";
37 case kRGBA_1010102_SkColorType: return "1010102";
38 case kRGB_101010x_SkColorType: return "101010x";
39 case kBGRA_1010102_SkColorType: return "bgra1010102";
40 case kBGR_101010x_SkColorType: return "bgr101010x";
41 case kGray_8_SkColorType: return "G8";
42 case kRGBA_F16Norm_SkColorType: return "F16Norm";
43 case kRGBA_F16_SkColorType: return "F16";
44 case kRGBA_F32_SkColorType: return "F32";
45 case kR8G8_unorm_SkColorType: return "R8G8_unorm";
46 case kA16_unorm_SkColorType: return "A16_unorm";
47 case kR16G16_unorm_SkColorType: return "R16G16_unorm";
48 case kA16_float_SkColorType: return "A16_float";
49 case kR16G16_float_SkColorType: return "R16G16_float";
50 case kR16G16B16A16_unorm_SkColorType: return "R16G16B16A16_unorm";
51 case kSRGBA_8888_SkColorType: return "SRGBA_8888";
52 case kR8_unorm_SkColorType: return "R8_unorm";
53 }
54 return "";
55 }
56
57 constexpr SkColorType gColorTypes[] = {
58 kRGB_565_SkColorType,
59 kARGB_4444_SkColorType,
60 kN32_SkColorType,
61 };
62
63 #define NUM_CONFIGS SK_ARRAY_COUNT(gColorTypes)
64
draw_checks(SkCanvas * canvas,int width,int height)65 static void draw_checks(SkCanvas* canvas, int width, int height) {
66 SkPaint paint;
67 paint.setColor(SK_ColorRED);
68 canvas->drawRect(SkRect::MakeIWH(width/2, height/2), paint);
69 paint.setColor(SK_ColorGREEN);
70 canvas->drawRect({ SkIntToScalar(width/2), 0, SkIntToScalar(width), SkIntToScalar(height/2) },
71 paint);
72 paint.setColor(SK_ColorBLUE);
73 canvas->drawRect({ 0, SkIntToScalar(height/2), SkIntToScalar(width/2), SkIntToScalar(height) },
74 paint);
75 paint.setColor(SK_ColorYELLOW);
76 canvas->drawRect({ SkIntToScalar(width/2), SkIntToScalar(height/2), SkIntToScalar(width),
77 SkIntToScalar(height) }, paint);
78 }
79
80 class BitmapCopyGM : public skiagm::GM {
81 SkBitmap fDst[NUM_CONFIGS];
82
onOnceBeforeDraw()83 void onOnceBeforeDraw() override { this->setBGColor(0xFFDDDDDD); }
84
onShortName()85 SkString onShortName() override { return SkString("bitmapcopy"); }
86
onISize()87 SkISize onISize() override { return {540, 330}; }
88
onDraw(SkCanvas * canvas)89 void onDraw(SkCanvas* canvas) override {
90 SkPaint paint;
91 SkScalar horizMargin = 10;
92 SkScalar vertMargin = 10;
93
94 SkBitmap src;
95 src.allocN32Pixels(40, 40, kOpaque_SkAlphaType);
96 SkCanvas canvasTmp(src);
97
98 draw_checks(&canvasTmp, 40, 40);
99
100 for (unsigned i = 0; i < NUM_CONFIGS; ++i) {
101 ToolUtils::copy_to(&fDst[i], gColorTypes[i], src);
102 }
103
104 canvas->clear(0xFFDDDDDD);
105 paint.setAntiAlias(true);
106
107 SkFont font(ToolUtils::create_portable_typeface());
108
109 SkScalar width = SkIntToScalar(40);
110 SkScalar height = SkIntToScalar(40);
111 if (font.getSpacing() > height) {
112 height = font.getSpacing();
113 }
114 for (unsigned i = 0; i < NUM_CONFIGS; i++) {
115 const char* name = color_type_name(src.colorType());
116 SkScalar textWidth = font.measureText(name, strlen(name), SkTextEncoding::kUTF8);
117 if (textWidth > width) {
118 width = textWidth;
119 }
120 }
121 SkScalar horizOffset = width + horizMargin;
122 SkScalar vertOffset = height + vertMargin;
123 canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
124
125 for (unsigned i = 0; i < NUM_CONFIGS; i++) {
126 canvas->save();
127 // Draw destination config name
128 const char* name = color_type_name(fDst[i].colorType());
129 SkScalar textWidth = font.measureText(name, strlen(name), SkTextEncoding::kUTF8);
130 SkScalar x = (width - textWidth) / SkScalar(2);
131 SkScalar y = font.getSpacing() / SkScalar(2);
132 canvas->drawSimpleText(name, strlen(name), SkTextEncoding::kUTF8, x, y, font, paint);
133
134 // Draw destination bitmap
135 canvas->translate(0, vertOffset);
136 x = (width - 40) / SkScalar(2);
137 canvas->drawImage(fDst[i].asImage(), x, 0, SkSamplingOptions(), &paint);
138 canvas->restore();
139
140 canvas->translate(horizOffset, 0);
141 }
142 }
143 };
144 } // namespace
145
146 //////////////////////////////////////////////////////////////////////////////
147
148 DEF_GM( return new BitmapCopyGM; )
149