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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stdio.h>
#include "SkBitmap.h"
#include "SkCGUtils.h"
#include "SkForceLinking.h"
#include "SkImageEncoder.h"
#include "SkStream.h"
__SK_FORCE_IMAGE_DECODER_LINKING;
class StdOutWStream : public SkWStream {
public:
StdOutWStream() : fBytesWritten(0) {}
bool write(const void* buffer, size_t size) final {
fBytesWritten += size;
return size == fwrite(buffer, 1, size, stdout);
}
size_t bytesWritten() const final { return fBytesWritten; }
private:
size_t fBytesWritten;
};
static SkStreamAsset* open_for_reading(const char* path) {
if (!path || !path[0] || 0 == strcmp(path, "-")) {
return new SkFILEStream(stdin, SkFILEStream::kCallerRetains_Ownership);
}
return SkStream::NewFromFile(path);
}
static SkWStream* open_for_writing(const char* path) {
if (!path || !path[0] || 0 == strcmp(path, "-")) {
return new StdOutWStream;
}
return new SkFILEWStream(path);
}
static bool to_png(SkWStream* o, const SkBitmap& bm) {
return SkImageEncoder::EncodeStream(o, bm, SkImageEncoder::kPNG_Type, 100);
}
// Note: I could implement this using only MacOS|CG API calls, but
// since most of this is already done in Skia, here it is.
int main(int argc, char** argv) {
SkBitmap bm;
SkAutoTDelete<SkStream> in(open_for_reading(argc > 1 ? argv[1] : NULL));
SkAutoTDelete<SkWStream> out(open_for_writing(argc > 2 ? argv[2] : NULL));
if (SkPDFDocumentToBitmap(in.release(), &bm) && to_png(out, bm)) {
return 0;
} else {
return 1;
}
}
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