1 /*
2 * Copyright 2016 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/SkData.h"
12 #include "include/core/SkEncodedImageFormat.h"
13 #include "include/core/SkImage.h"
14 #include "include/core/SkImageInfo.h"
15 #include "include/core/SkPixmap.h"
16 #include "include/core/SkRect.h"
17 #include "include/core/SkRefCnt.h"
18 #include "include/core/SkSize.h"
19 #include "include/core/SkStream.h"
20 #include "include/core/SkString.h"
21 #include "include/core/SkTypes.h"
22 #include "include/encode/SkJpegEncoder.h"
23 #include "include/encode/SkPngEncoder.h"
24 #include "include/encode/SkWebpEncoder.h"
25 #include "tools/Resources.h"
26
27 #if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS) || defined(SK_BUILD_FOR_WIN)
28 #include "src/images/SkImageEncoderPriv.h"
29 #endif
30
31 namespace skiagm {
32
33 #if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
34 static SkEncodedImageFormat kTypes[] {
35 SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kJPEG, SkEncodedImageFormat::kGIF,
36 SkEncodedImageFormat::kBMP, SkEncodedImageFormat::kICO,
37 };
38 #elif defined(SK_BUILD_FOR_WIN)
39 // Use PNG multiple times because our WIC encoder does not support GIF, BMP, or ICO.
40 static SkEncodedImageFormat kTypes[] {
41 SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kJPEG, SkEncodedImageFormat::kPNG,
42 SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kPNG,
43 };
44 #else
45 // Use WEBP in place of GIF. Use PNG two extra times. We don't support GIF, BMP, or ICO.
46 static SkEncodedImageFormat kTypes[] {
47 SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kJPEG, SkEncodedImageFormat::kWEBP,
48 SkEncodedImageFormat::kPNG, SkEncodedImageFormat::kPNG,
49 };
50 #endif
51
encode_data(SkEncodedImageFormat type,const SkBitmap & bitmap)52 static sk_sp<SkData> encode_data(SkEncodedImageFormat type, const SkBitmap& bitmap) {
53 SkPixmap src;
54 if (!bitmap.peekPixels(&src)) {
55 return nullptr;
56 }
57 SkDynamicMemoryWStream buf;
58 #if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
59 return SkEncodeImageWithCG(&buf, src, type) ? buf.detachAsData() : nullptr;
60 #elif defined(SK_BUILD_FOR_WIN)
61 return SkEncodeImageWithWIC(&buf, src, type, 100) ? buf.detachAsData() : nullptr;
62 #else
63 switch (type) {
64 case SkEncodedImageFormat::kPNG: {
65 bool success = SkPngEncoder::Encode(&buf, src, SkPngEncoder::Options());
66 return success ? buf.detachAsData() : nullptr;
67 }
68 case SkEncodedImageFormat::kJPEG: {
69 bool success = SkJpegEncoder::Encode(&buf, src, SkJpegEncoder::Options());
70 return success ? buf.detachAsData() : nullptr;
71 }
72 case SkEncodedImageFormat::kWEBP: {
73 bool success = SkWebpEncoder::Encode(&buf, src, SkWebpEncoder::Options());
74 return success ? buf.detachAsData() : nullptr;
75 }
76 default:
77 SkASSERT(false);
78 return nullptr;
79 }
80 #endif
81 }
82
83 class EncodePlatformGM : public GM {
84 public:
EncodePlatformGM()85 EncodePlatformGM() {}
86
87 protected:
onShortName()88 SkString onShortName() override {
89 return SkString("encode-platform");
90 }
91
onISize()92 SkISize onISize() override {
93 return SkISize::Make(256 * SK_ARRAY_COUNT(kTypes), 256 * 3);
94 }
95
onDraw(SkCanvas * canvas,SkString * errorMsg)96 DrawResult onDraw(SkCanvas* canvas, SkString* errorMsg) override {
97 SkBitmap opaqueBm, premulBm, unpremulBm;
98
99 if (!GetResourceAsBitmap("images/mandrill_256.png", &opaqueBm)) {
100 *errorMsg = "Could not load images/mandrill_256.png.png. "
101 "Did you forget to set the resourcePath?";
102 return DrawResult::kFail;
103 }
104 SkBitmap tmp;
105 if (!GetResourceAsBitmap("images/yellow_rose.png", &tmp)) {
106 *errorMsg = "Could not load images/yellow_rose.png. "
107 "Did you forget to set the resourcePath?";
108 return DrawResult::kFail;
109 }
110 tmp.extractSubset(&premulBm, SkIRect::MakeWH(256, 256));
111 tmp.reset();
112 unpremulBm.allocPixels(premulBm.info().makeAlphaType(kUnpremul_SkAlphaType));
113 SkAssertResult(premulBm.readPixels(unpremulBm.pixmap()));
114
115 for (SkEncodedImageFormat type : kTypes) {
116 auto opaqueImage = SkImage::MakeFromEncoded(encode_data(type, opaqueBm));
117 auto premulImage = SkImage::MakeFromEncoded(encode_data(type, premulBm));
118 auto unpremulImage = SkImage::MakeFromEncoded(encode_data(type, unpremulBm));
119
120 canvas->drawImage(opaqueImage.get(), 0.0f, 0.0f);
121 canvas->drawImage(premulImage.get(), 0.0f, 256.0f);
122 canvas->drawImage(unpremulImage.get(), 0.0f, 512.0f);
123
124 canvas->translate(256.0f, 0.0f);
125 }
126 return DrawResult::kOk;
127 }
128
129 private:
130 typedef GM INHERITED;
131 };
132
133 DEF_GM( return new EncodePlatformGM; )
134 }
135
