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Overload StreamDataProvider::provideStreamData

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Use 'QPDFObjGen const&' instead of 'int, int' in signature.
This commit is contained in:
m-holger 2022-07-24 14:16:37 +01:00
parent 5d0469f1bc
commit afd35f9a30
11 changed files with 50 additions and 38 deletions
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7
examples/pdf-create.cc
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@ -29,8 +29,7 @@ class ImageProvider: public QPDFObjectHandle::StreamDataProvider
public:
ImageProvider(std::string const& color_space, std::string const& filter);
virtual ~ImageProvider() = default;
virtual void
provideStreamData(int objid, int generation, Pipeline* pipeline);
virtual void provideStreamData(QPDFObjGen const&, Pipeline* pipeline);
size_t getWidth() const;
size_t getHeight() const;
@ -93,7 +92,7 @@ ImageProvider::getHeight() const
}
void
ImageProvider::provideStreamData(int objid, int generation, Pipeline* pipeline)
ImageProvider::provideStreamData(QPDFObjGen const&, Pipeline* pipeline)
{
std::vector<std::shared_ptr<Pipeline>> to_delete;
Pipeline* p = pipeline;
@ -292,7 +291,7 @@ check(
ImageProvider* p = new ImageProvider(desired_color_space, "null");
std::shared_ptr<QPDFObjectHandle::StreamDataProvider> provider(p);
Pl_Buffer b_p("get image data");
provider->provideStreamData(0, 0, &b_p);
provider->provideStreamData(QPDFObjGen(), &b_p);
std::shared_ptr<Buffer> desired_data(b_p.getBuffer());
if (desired_data->getSize() != actual_data->getSize()) {

5
examples/pdf-custom-filter.cc
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@ -201,7 +201,7 @@ class StreamReplacer: public QPDFObjectHandle::StreamDataProvider
StreamReplacer(QPDF* pdf);
virtual ~StreamReplacer() = default;
virtual void
provideStreamData(int objid, int generation, Pipeline* pipeline) override;
provideStreamData(QPDFObjGen const& og, Pipeline* pipeline) override;
void registerStream(
QPDFObjectHandle stream,
@ -384,9 +384,8 @@ StreamReplacer::registerStream(
}
void
StreamReplacer::provideStreamData(int objid, int generation, Pipeline* pipeline)
StreamReplacer::provideStreamData(QPDFObjGen const& og, Pipeline* pipeline)
{
QPDFObjGen og(objid, generation);
QPDFObjectHandle orig = this->copied_streams[og];
// call maybeReplace again, this time with the pipeline and no
// dict_updates. In this mode, maybeReplace doesn't make any

5
examples/pdf-invert-images.cc
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@ -35,7 +35,7 @@ class ImageInverter: public QPDFObjectHandle::StreamDataProvider
public:
virtual ~ImageInverter() = default;
virtual void
provideStreamData(int objid, int generation, Pipeline* pipeline) override;
provideStreamData(QPDFObjGen const& og, Pipeline* pipeline) override;
void registerImage(
QPDFObjectHandle image,
@ -82,12 +82,11 @@ ImageInverter::registerImage(
}
void
ImageInverter::provideStreamData(int objid, int generation, Pipeline* pipeline)
ImageInverter::provideStreamData(QPDFObjGen const& og, Pipeline* pipeline)
{
// Use the object and generation number supplied to look up the
// image data. Then invert the image data and write the inverted
// data to the pipeline.
QPDFObjGen og(objid, generation);
std::shared_ptr<Buffer> data =
this->copied_images[og].getStreamData(qpdf_dl_all);
size_t size = data->getSize();

3
include/qpdf/QPDF.hh
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@ -990,8 +990,7 @@ class QPDF
CopiedStreamDataProvider(QPDF& destination_qpdf);
virtual ~CopiedStreamDataProvider() = default;
virtual bool provideStreamData(
int objid,
int generation,
QPDFObjGen const& og,
Pipeline* pipeline,
bool suppress_warnings,
bool will_retry) override;

10
include/qpdf/QPDFObjectHandle.hh
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@ -116,9 +116,17 @@ class QPDFObjectHandle
// indicating whether it ran without errors.
QPDF_DLL
virtual void
provideStreamData(int objid, int generation, Pipeline* pipeline);
provideStreamData(QPDFObjGen const& og, Pipeline* pipeline);
QPDF_DLL
virtual bool provideStreamData(
QPDFObjGen const& og,
Pipeline* pipeline,
bool suppress_warnings,
bool will_retry);
// The following two overloads are deprecated.
QPDF_DLL virtual void
provideStreamData(int objid, int generation, Pipeline* pipeline);
QPDF_DLL virtual bool provideStreamData(
int objid,
int generation,
Pipeline* pipeline,

9
libqpdf/QPDF.cc
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@ -135,22 +135,19 @@ QPDF::CopiedStreamDataProvider::CopiedStreamDataProvider(
bool
QPDF::CopiedStreamDataProvider::provideStreamData(
int objid,
int generation,
QPDFObjGen const& og,
Pipeline* pipeline,
bool suppress_warnings,
bool will_retry)
{
std::shared_ptr<ForeignStreamData> foreign_data =
this->foreign_stream_data[QPDFObjGen(objid, generation)];
std::shared_ptr<ForeignStreamData> foreign_data = foreign_stream_data[og];
bool result = false;
if (foreign_data.get()) {
result = destination_qpdf.pipeForeignStreamData(
foreign_data, pipeline, suppress_warnings, will_retry);
QTC::TC("qpdf", "QPDF copy foreign with data", result ? 0 : 1);
} else {
QPDFObjectHandle foreign_stream =
this->foreign_streams[QPDFObjGen(objid, generation)];
auto foreign_stream = foreign_streams[og];
result = foreign_stream.pipeStreamData(
pipeline, nullptr, 0, qpdf_dl_none, suppress_warnings, will_retry);
QTC::TC(

5
libqpdf/QPDFJob.cc
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@ -49,8 +49,7 @@ namespace
size_t oi_min_area,
QPDFObjectHandle& image);
virtual ~ImageOptimizer() = default;
virtual void
provideStreamData(int objid, int generation, Pipeline* pipeline);
virtual void provideStreamData(QPDFObjGen const&, Pipeline* pipeline);
std::shared_ptr<Pipeline>
makePipeline(std::string const& description, Pipeline* next);
bool evaluate(std::string const& description);
@ -250,7 +249,7 @@ ImageOptimizer::evaluate(std::string const& description)
}
void
ImageOptimizer::provideStreamData(int, int, Pipeline* pipeline)
ImageOptimizer::provideStreamData(QPDFObjGen const&, Pipeline* pipeline)
{
std::shared_ptr<Pipeline> p = makePipeline("", pipeline);
if (p.get() == nullptr) {

28
libqpdf/QPDFObjectHandle.cc
View File

@ -51,6 +51,24 @@ QPDFObjectHandle::StreamDataProvider::~StreamDataProvider()
// README-maintainer
}
void
QPDFObjectHandle::StreamDataProvider::provideStreamData(
QPDFObjGen const& og, Pipeline* pipeline)
{
return provideStreamData(og.getObj(), og.getGen(), pipeline);
}
bool
QPDFObjectHandle::StreamDataProvider::provideStreamData(
QPDFObjGen const& og,
Pipeline* pipeline,
bool suppress_warnings,
bool will_retry)
{
return provideStreamData(
og.getObj(), og.getGen(), pipeline, suppress_warnings, will_retry);
}
void
QPDFObjectHandle::StreamDataProvider::provideStreamData(
int objid, int generation, Pipeline* pipeline)
@ -90,8 +108,7 @@ namespace
{
}
virtual ~CoalesceProvider() = default;
virtual void
provideStreamData(int objid, int generation, Pipeline* pipeline);
virtual void provideStreamData(QPDFObjGen const&, Pipeline* pipeline);
private:
QPDFObjectHandle containing_page;
@ -100,7 +117,7 @@ namespace
} // namespace
void
CoalesceProvider::provideStreamData(int, int, Pipeline* p)
CoalesceProvider::provideStreamData(QPDFObjGen const&, Pipeline* p)
{
QTC::TC("qpdf", "QPDFObjectHandle coalesce provide stream data");
std::string description =
@ -1425,15 +1442,14 @@ namespace
}
virtual void
provideStreamData(int, int, Pipeline* pipeline) override
provideStreamData(QPDFObjGen const&, Pipeline* pipeline) override
{
p1(pipeline);
}
virtual bool
provideStreamData(
int,
int,
QPDFObjGen const&,
Pipeline* pipeline,
bool suppress_warnings,
bool will_retry) override

5
libqpdf/QPDFPageObjectHelper.cc
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@ -21,8 +21,7 @@ namespace
{
}
virtual ~ContentProvider() = default;
virtual void
provideStreamData(int objid, int generation, Pipeline* pipeline);
virtual void provideStreamData(QPDFObjGen const&, Pipeline* pipeline);
private:
QPDFObjectHandle from_page;
@ -30,7 +29,7 @@ namespace
} // namespace
void
ContentProvider::provideStreamData(int, int, Pipeline* p)
ContentProvider::provideStreamData(QPDFObjGen const&, Pipeline* p)
{
Pl_Concatenate concat("concatenate", p);
std::string description =

9
libqpdf/QPDF_Stream.cc
View File

@ -610,17 +610,12 @@ QPDF_Stream::pipeStreamData(
Pl_Count count("stream provider count", pipeline);
if (this->stream_provider->supportsRetry()) {
if (!this->stream_provider->provideStreamData(
og.getObj(),
og.getGen(),
&count,
suppress_warnings,
will_retry)) {
og, &count, suppress_warnings, will_retry)) {
filter = false;
success = false;
}
} else {
this->stream_provider->provideStreamData(
og.getObj(), og.getGen(), &count);
this->stream_provider->provideStreamData(og, &count);
}
qpdf_offset_t actual_length = count.getCount();
qpdf_offset_t desired_length = 0;

2
qpdf/test_driver.cc
View File

@ -56,6 +56,8 @@ class Provider: public QPDFObjectHandle::StreamDataProvider
virtual void
provideStreamData(int objid, int generation, Pipeline* p)
{
// Don't change signature to use QPDFObjGen const& to detect
// problems forwarding to legacy implementations.
p->write(b->getBuffer(), b->getSize());
if (this->bad_length) {
unsigned char ch = ' ';