1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkCanvas.h"
#include "SkDocument.h"
#include "SkForceLinking.h"
#include "SkGraphics.h"
#include "SkNullCanvas.h"
#include "SkPicture.h"
#include "SkStream.h"
#include "SkTemplates.h"
#include "PageCachingDocument.h"
#include "ProcStats.h"
#include "flags/SkCommandLineFlags.h"
DEFINE_string2(readPath,
r,
"",
"(Required) The path to a .skp Skia Picture file.");
DEFINE_string2(writePath, w, "", "If set, write PDF output to this file.");
DEFINE_bool(cachePages, false, "Use a PageCachingDocument.");
DEFINE_bool(nullCanvas, true, "Render to a SkNullCanvas as a control.");
__SK_FORCE_IMAGE_DECODER_LINKING;
namespace {
class NullWStream : public SkWStream {
public:
NullWStream() : fBytesWritten(0) {
}
bool write(const void*, size_t size) override {
fBytesWritten += size;
return true;
}
size_t bytesWritten() const override {
return fBytesWritten;
}
size_t fBytesWritten;
};
SkDocument* CreatePDFDocument(SkWStream* out) {
if (FLAGS_cachePages) {
return CreatePageCachingDocument(out);
} else {
return SkDocument::CreatePDF(out);
}
}
} // namespace
int main(int argc, char** argv) {
SkCommandLineFlags::Parse(argc, argv);
if (FLAGS_readPath.isEmpty()) {
SkDebugf("Error: missing requires --readPath option\n");
return 1;
}
const char* path = FLAGS_readPath[0];
SkFILEStream inputStream(path);
if (!inputStream.isValid()) {
SkDebugf("Could not open file %s\n", path);
return 2;
}
SkAutoGraphics ag;
SkAutoTUnref<SkPicture> picture(SkPicture::CreateFromStream(&inputStream));
if (NULL == picture.get()) {
SkDebugf("Could not read an SkPicture from %s\n", path);
return 3;
}
int width = picture->cullRect().width();
int height = picture->cullRect().height();
const int kLetterWidth = 612; // 8.5 * 72
const int kLetterHeight = 792; // 11 * 72
SkRect letterRect = SkRect::MakeWH(SkIntToScalar(kLetterWidth),
SkIntToScalar(kLetterHeight));
int xPages = ((width - 1) / kLetterWidth) + 1;
int yPages = ((height - 1) / kLetterHeight) + 1;
SkAutoTDelete<SkWStream> out(SkNEW(NullWStream));
if (!FLAGS_writePath.isEmpty()) {
SkAutoTDelete<SkFILEWStream> fileStream(
SkNEW_ARGS(SkFILEWStream, (FLAGS_writePath[0])));
if (!fileStream->isValid()) {
SkDebugf("Can't open file \"%s\" for writing.", FLAGS_writePath[0]);
return 1;
}
out.reset(fileStream.detach());
}
SkCanvas* nullCanvas = SkCreateNullCanvas();
SkAutoTUnref<SkDocument> pdfDocument;
if (!FLAGS_nullCanvas) {
pdfDocument.reset(CreatePDFDocument(out.get()));
}
for (int y = 0; y < yPages; ++y) {
for (int x = 0; x < xPages; ++x) {
SkCanvas* canvas;
if (FLAGS_nullCanvas) {
canvas = nullCanvas;
} else {
int w = SkTMin(kLetterWidth, width - (x * kLetterWidth));
int h = SkTMin(kLetterHeight, height - (y * kLetterHeight));
canvas = pdfDocument->beginPage(w, h);
}
{
SkAutoCanvasRestore autoCanvasRestore(canvas, true);
canvas->clipRect(letterRect);
canvas->translate(SkIntToScalar(-kLetterWidth * x),
SkIntToScalar(-kLetterHeight * y));
picture->playback(canvas);
//canvas->drawPicture(picture);
}
canvas->flush();
if (!FLAGS_nullCanvas) {
pdfDocument->endPage();
}
}
}
if (!FLAGS_nullCanvas) {
pdfDocument->close();
pdfDocument.reset(NULL);
}
printf(SK_SIZE_T_SPECIFIER "\t%4d\n",
inputStream.getLength(),
sk_tools::getMaxResidentSetSizeMB());
return 0;
}
|
