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pdfviewer: add --pages arg: render a certain page (all, all in desceding order, firsl, last and by page number)

Browse Source 
Review URL: https://codereview.chromium.org/18584010

git-svn-id: http://skia.googlecode.com/svn/trunk@9999 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
edisonn@google.com 2013-07-11 12:53:06 +00:00
parent 183f7f56b8
commit 7b328fddf9
6 changed files with 38 additions and 15 deletions
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2
experimental/PdfViewer/SkPdfRenderer.cpp
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@ -2013,7 +2013,7 @@ SkRect SkPdfRenderer::MediaBox(int page) const {
return fPdfDoc->MediaBox(page);
}
size_t SkPdfRenderer::bytesUsed() {
size_t SkPdfRenderer::bytesUsed() const {
return fPdfDoc ? fPdfDoc->bytesUsed() : 0;
}

1
experimental/PdfViewer/SkPdfRenderer.h
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@ -34,6 +34,7 @@ public:
int pages() const;
void unload();
SkRect MediaBox(int page) const;
size_t bytesUsed() const;
};
void reportPdfRenderStats();

44
experimental/PdfViewer/pdf_viewer_main.cpp
View File

@ -17,6 +17,14 @@ DEFINE_string2(readPath, r, "", "pdf files or directories of pdf files to proces
DEFINE_string2(writePath, w, "", "Directory to write the rendered pages.");
DEFINE_bool2(noExtensionForOnePagePdf, n, false, "No page extension if only one page.");
DEFINE_bool2(showMemoryUsage, m, false, "Show Memory usage.");
DEFINE_string2(pages, p, "all", "What pages to render and how:\n"
"\tall - all pages\n"
"\treverse - all pages, in reverse order\n"
"\tfirst - first page\n"
"\tlast - last page\n"
"\tnumber - a specific page number\n"
);
/**
* Given list of directories and files to use as input, expects to find .pdf
@ -122,6 +130,10 @@ static bool render_page(const SkString& outputDir,
SkImageEncoder::EncodeFile(outputPath.c_str(), bitmap, SkImageEncoder::kPNG_Type, 100);
if (FLAGS_showMemoryUsage) {
SkDebugf("Memory usage after page %i rendered: %u\n", page < 0 ? 0 : page, (unsigned int)renderer.bytesUsed());
}
return true;
}
@ -131,7 +143,7 @@ static bool render_page(const SkString& outputDir,
* @param renderer The object responsible to render the skp object into pdf.
*/
static bool process_pdf(const SkString& inputPath, const SkString& outputDir,
SkPdfRenderer& renderer, bool noPageExt, bool showMemoryUsage) {
SkPdfRenderer& renderer) {
SkDebugf("Loading PDF: %s\n", inputPath.c_str());
SkString inputFilename;
@ -149,7 +161,7 @@ static bool process_pdf(const SkString& inputPath, const SkString& outputDir,
success = renderer.load(inputPath);
if (success) {
if (showMemoryUsage) {
if (FLAGS_showMemoryUsage) {
SkDebugf("Memory usage after load: %u\n", (unsigned int)renderer.bytesUsed());
}
if (!renderer.pages())
@ -157,9 +169,21 @@ static bool process_pdf(const SkString& inputPath, const SkString& outputDir,
SkDebugf("ERROR: Empty PDF Document %s\n", inputPath.c_str());
return false;
} else {
for (int pn = 0; pn < renderer.pages(); ++pn) {
success = render_page(outputDir, inputFilename, renderer, noPageExt && renderer.pages() == 1 ? -1 : pn) && success;
SkDebugf("Memory usage after page %i rendered: %u\n", pn, (unsigned int)renderer.bytesUsed());
if (strcmp(FLAGS_pages[0], "all") == 0) {
for (int pn = 0; pn < renderer.pages(); ++pn) {
success = render_page(outputDir, inputFilename, renderer, FLAGS_noExtensionForOnePagePdf && renderer.pages() == 1 ? -1 : pn) && success;
}
} else if (strcmp(FLAGS_pages[0], "reverse") == 0) {
for (int pn = renderer.pages() - 1; pn >= 0; --pn) {
success = render_page(outputDir, inputFilename, renderer, FLAGS_noExtensionForOnePagePdf && renderer.pages() == 1 ? -1 : pn) && success;
}
} else if (strcmp(FLAGS_pages[0], "first") == 0) {
success = render_page(outputDir, inputFilename, renderer, FLAGS_noExtensionForOnePagePdf && renderer.pages() == 1 ? -1 : 0) && success;
} else if (strcmp(FLAGS_pages[0], "last") == 0) {
success = render_page(outputDir, inputFilename, renderer, FLAGS_noExtensionForOnePagePdf && renderer.pages() == 1 ? -1 : renderer.pages() - 1) && success;
} else {
int pn = atoi(FLAGS_pages[0]);
success = render_page(outputDir, inputFilename, renderer, FLAGS_noExtensionForOnePagePdf && renderer.pages() == 1 ? -1 : renderer.pages() - 1) && pn;
}
}
}
@ -174,7 +198,7 @@ static bool process_pdf(const SkString& inputPath, const SkString& outputDir,
* @param renderer The object responsible to render the skp object into pdf.
*/
static int process_input(const char* input, const SkString& outputDir,
SkPdfRenderer& renderer, bool noPageExt, bool showMemoryUsage) {
SkPdfRenderer& renderer) {
int failures = 0;
if (sk_isdir(input)) {
SkOSFile::Iter iter(input, PDF_FILE_EXTENSION);
@ -184,13 +208,13 @@ static int process_input(const char* input, const SkString& outputDir,
SkString _input;
_input.append(input);
sk_tools::make_filepath(&inputPath, _input, inputFilename);
if (!process_pdf(inputPath, outputDir, renderer, noPageExt, showMemoryUsage)) {
if (!process_pdf(inputPath, outputDir, renderer)) {
++failures;
}
}
} else {
SkString inputPath(input);
if (!process_pdf(inputPath, outputDir, renderer, noPageExt, showMemoryUsage)) {
if (!process_pdf(inputPath, outputDir, renderer)) {
++failures;
}
}
@ -216,9 +240,7 @@ int tool_main(int argc, char** argv) {
int failures = 0;
for (int i = 0; i < FLAGS_readPath.count(); i ++) {
failures += process_input(FLAGS_readPath[i], outputDir, renderer,
FLAGS_noExtensionForOnePagePdf,
FLAGS_showMemoryUsage);
failures += process_input(FLAGS_readPath[i], outputDir, renderer);
renderer.unload();
}

2
experimental/PdfViewer/pdfparser/native/SkNativeParsedPDF.cpp
View File

@ -417,7 +417,7 @@ SkPdfObject* SkNativeParsedPDF::resolveReference(const SkPdfObject* ref) {
return (SkPdfObject*)ref;
}
size_t SkNativeParsedPDF::bytesUsed() {
size_t SkNativeParsedPDF::bytesUsed() const {
return fAllocator->bytesUsed() +
fContentLength +
fObjects.count() * sizeof(PublicObjectEntry) +

2
experimental/PdfViewer/pdfparser/native/SkNativeParsedPDF.h
View File

@ -62,7 +62,7 @@ public:
SkPdfObject* resolveReference(const SkPdfObject* ref);
// Reports an approximation of all the memory usage.
size_t bytesUsed();
size_t bytesUsed() const;
private:

2
experimental/PdfViewer/pdfparser/native/SkPdfNativeTokenizer.h
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@ -104,7 +104,7 @@ public:
return data;
}
size_t bytesUsed() {
size_t bytesUsed() const {
return fSizeInBytes;
}
};