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Side by Side Diff: tools/render_pdfs_main.cpp

Issue 1461633002: Clean up dead code: render_pdfs. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 1 month ago
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1 /*
2 * Copyright 2012 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 "SkCanvas.h"
9 #include "SkCommandLineFlags.h"
10 #include "SkDocument.h"
11 #include "SkForceLinking.h"
12 #include "SkGraphics.h"
13 #include "SkImageEncoder.h"
14 #include "SkOSFile.h"
15 #include "SkPicture.h"
16 #include "SkStream.h"
17 #include "SkTArray.h"
18 #include "SkTSort.h"
19 #include "ProcStats.h"
20
21 __SK_FORCE_IMAGE_DECODER_LINKING;
22
23 #ifdef SK_USE_CDB
24 #include "win_dbghelp.h"
25 #endif
26
27 /**
28 * render_pdfs
29 *
30 * Given list of directories and files to use as input, expects to find .skp
31 * files and it will convert them to .pdf files writing them in the output
32 * directory.
33 *
34 * Returns zero exit code if all .skp files were converted successfully,
35 * otherwise returns error code 1.
36 */
37
38 static const char PDF_FILE_EXTENSION[] = "pdf";
39 static const char SKP_FILE_EXTENSION[] = "skp";
40
41
42 DEFINE_string2(inputPaths, r, "",
43 "A list of directories and files to use as input. "
44 "Files are expected to have the .skp extension.");
45
46 DEFINE_string2(outputDir, w, "",
47 "Directory to write the rendered pdfs.");
48
49 DEFINE_string2(match, m, "",
50 "[~][^]substring[$] [...] of filenames to run.\n"
51 "Multiple matches may be separated by spaces.\n"
52 "~ causes a matching file to always be skipped\n"
53 "^ requires the start of the file to match\n"
54 "$ requires the end of the file to match\n"
55 "^ and $ requires an exact match\n"
56 "If a file does not match any list entry,\n"
57 "it is skipped unless some list entry starts with ~");
58
59 /** Replaces the extension of a file.
60 * @param path File name whose extension will be changed.
61 * @param old_extension The old extension.
62 * @param new_extension The new extension.
63 * @returns false if the file did not has the expected extension.
64 * if false is returned, contents of path are undefined.
65 */
66 static bool replace_filename_extension(SkString* path,
67 const char old_extension[],
68 const char new_extension[]) {
69 if (path->endsWith(old_extension)) {
70 path->remove(path->size() - strlen(old_extension),
71 strlen(old_extension));
72 if (!path->endsWith(".")) {
73 return false;
74 }
75 path->append(new_extension);
76 return true;
77 }
78 return false;
79 }
80
81 /** Builds the output filename. path = dir/name, and it replaces expected
82 * .skp extension with .pdf extention.
83 * @param path Output filename.
84 * @param name The name of the file.
85 * @returns false if the file did not has the expected extension.
86 * if false is returned, contents of path are undefined.
87 */
88 static bool make_output_filepath(SkString* path, const SkString& dir,
89 const SkString& name) {
90 *path = SkOSPath::Join(dir.c_str(), name.c_str());
91 return replace_filename_extension(path,
92 SKP_FILE_EXTENSION,
93 PDF_FILE_EXTENSION);
94 }
95
96 namespace {
97 // This is a write-only stream.
98 class NullWStream : public SkWStream {
99 public:
100 NullWStream() : fBytesWritten(0) { }
101 bool write(const void*, size_t size) override {
102 fBytesWritten += size;
103 return true;
104 }
105 size_t bytesWritten() const override { return fBytesWritten; }
106 size_t fBytesWritten;
107 };
108 } // namespace
109
110 /** Write the output of pdf renderer to a file.
111 * @param outputDir Output dir.
112 * @param inputFilename The skp file that was read.
113 * @param renderer The object responsible to write the pdf file.
114 */
115 static SkWStream* open_stream(const SkString& outputDir,
116 const SkString& inputFilename) {
117 if (outputDir.isEmpty()) {
118 return new NullWStream;
119 }
120
121 SkString outputPath;
122 if (!make_output_filepath(&outputPath, outputDir, inputFilename)) {
123 return nullptr;
124 }
125
126 SkAutoTDelete<SkFILEWStream> stream(new SkFILEWStream(outputPath.c_str()));
127 if (!stream.get() || !stream->isValid()) {
128 SkDebugf("Could not write to file %s\n", outputPath.c_str());
129 return nullptr;
130 }
131
132 return stream.detach();
133 }
134
135 /**
136 * Given a SkPicture, write a one-page PDF document to the given
137 * output, using the provided encoder.
138 */
139 static bool pdf_to_stream(SkPicture* picture,
140 SkWStream* output) {
141 SkAutoTUnref<SkDocument> pdfDocument(
142 SkDocument::CreatePDF(output));
143 SkCanvas* canvas = pdfDocument->beginPage(picture->cullRect().width(),
144 picture->cullRect().height());
145 canvas->drawPicture(picture);
146 canvas->flush();
147 return pdfDocument->close();
148 }
149
150 static bool operator<(const SkString& a, const SkString& b) {
151 return strcmp(a.c_str(), b.c_str()) < 0;
152 }
153
154 /**
155 * @param A list of directories or a skp files.
156 * @returns an alphabetical list of skp files.
157 */
158 static void process_input_files(
159 const SkCommandLineFlags::StringArray& inputs,
160 SkTArray<SkString>* files) {
161 for (int i = 0; i < inputs.count(); i ++) {
162 const char* input = inputs[i];
163 if (sk_isdir(input)) {
164 SkOSFile::Iter iter(input, SKP_FILE_EXTENSION);
165 SkString inputFilename;
166 while (iter.next(&inputFilename)) {
167 if (!SkCommandLineFlags::ShouldSkip(
168 FLAGS_match, inputFilename.c_str())) {
169 files->push_back(
170 SkOSPath::Join(input, inputFilename.c_str()));
171 }
172 }
173 } else {
174 if (!SkCommandLineFlags::ShouldSkip(FLAGS_match, input)) {
175 files->push_back(SkString(input));
176 }
177 }
178 }
179 if (files->count() > 0) {
180 SkTQSort<SkString>(files->begin(), files->end() - 1);
181 }
182 }
183
184 /** For each input skp file, read it, render it to pdf and write. the
185 * output to a pdf file
186 */
187 int tool_main_core(int argc, char** argv);
188 int tool_main_core(int argc, char** argv) {
189 SkCommandLineFlags::Parse(argc, argv);
190
191 SkAutoGraphics ag;
192
193 SkString outputDir;
194 if (FLAGS_outputDir.count() > 0) {
195 outputDir = FLAGS_outputDir[0];
196 if (!sk_mkdir(outputDir.c_str())) {
197 SkDebugf("Unable to mkdir '%s'\n", outputDir.c_str());
198 return 1;
199 }
200 }
201
202 SkTArray<SkString> files;
203 process_input_files(FLAGS_inputPaths, &files);
204
205 size_t maximumPathLength = 0;
206 for (int i = 0; i < files.count(); i ++) {
207 SkString basename = SkOSPath::Basename(files[i].c_str());
208 maximumPathLength = SkTMax(maximumPathLength, basename.size());
209 }
210
211 int failures = 0;
212 for (int i = 0; i < files.count(); i ++) {
213 SkString basename = SkOSPath::Basename(files[i].c_str());
214
215 SkFILEStream inputStream;
216 inputStream.setPath(files[i].c_str());
217 if (!inputStream.isValid()) {
218 SkDebugf("Could not open file %s\n", files[i].c_str());
219 ++failures;
220 continue;
221 }
222
223 SkAutoTUnref<SkPicture> picture(
224 SkPicture::CreateFromStream(&inputStream));
225 if (nullptr == picture.get()) {
226 SkDebugf("Could not read an SkPicture from %s\n",
227 files[i].c_str());
228 ++failures;
229 continue;
230 }
231 SkDebugf("[%6g %6g %6g %6g] %-*s",
232 picture->cullRect().fLeft, picture->cullRect().fTop,
233 picture->cullRect().fRight, picture->cullRect().fBottom,
234 maximumPathLength, basename.c_str());
235
236 SkAutoTDelete<SkWStream> stream(open_stream(outputDir, files[i]));
237 if (!stream.get()) {
238 ++failures;
239 continue;
240 }
241 if (!pdf_to_stream(picture, stream.get())) {
242 SkDebugf("Error in PDF Serialization.");
243 ++failures;
244 }
245
246 int max_rss_mb = sk_tools::getMaxResidentSetSizeMB();
247 if (max_rss_mb >= 0) {
248 SkDebugf(" %4dM peak rss", max_rss_mb);
249 }
250
251 SkDebugf("\n");
252 }
253 if (failures != 0) {
254 SkDebugf("Failed to render %i of %i PDFs.\n", failures, files.count());
255 return 1;
256 }
257
258 return 0;
259 }
260
261 int tool_main(int argc, char** argv);
262 int tool_main(int argc, char** argv) {
263 #ifdef SK_USE_CDB
264 setUpDebuggingFromArgs(argv[0]);
265 __try {
266 #endif
267 return tool_main_core(argc, argv);
268 #ifdef SK_USE_CDB
269 }
270 __except(GenerateDumpAndPrintCallstack(GetExceptionInformation()))
271 {
272 return -1;
273 }
274 #endif
275 return 0;
276 }
277 #if !defined SK_BUILD_FOR_IOS
278 int main(int argc, char * const argv[]) {
279 return tool_main(argc, (char**) argv);
280 }
281 #endif
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