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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifdef SK_BUILD_FOR_WIN32
#pragma warning(push)
#pragma warning(disable : 4530)
#endif
#include "SkPDFRasterizer.h"
#include "SkColorPriv.h"
#ifdef SK_BUILD_NATIVE_PDF_RENDERER
#include "SkPdfRenderer.h"
#endif // SK_BUILD_NATIVE_PDF_RENDERER
#ifdef SK_BUILD_POPPLER
#include <poppler-document.h>
#include <poppler-image.h>
#include <poppler-page.h>
#include <poppler-page-renderer.h>
#endif // SK_BUILD_POPPLER
#ifdef SK_BUILD_POPPLER
bool SkPopplerRasterizePDF(SkStream* pdf, SkBitmap* output) {
size_t size = pdf->getLength();
SkAutoFree buffer(sk_malloc_throw(size));
pdf->read(buffer.get(), size);
SkAutoTDelete<poppler::document> doc(
poppler::document::load_from_raw_data((const char*)buffer.get(), size));
if (!doc.get() || doc->is_locked()) {
return false;
}
SkAutoTDelete<poppler::page> page(doc->create_page(0));
poppler::page_renderer renderer;
poppler::image image = renderer.render_page(page.get());
if (!image.is_valid() || image.format() != poppler::image::format_argb32) {
return false;
}
int width = image.width(), height = image.height();
size_t rowSize = image.bytes_per_row();
char *imgData = image.data();
SkBitmap bitmap;
if (!bitmap.allocPixels(SkImageInfo::MakeN32Premul(width, height))) {
return false;
}
bitmap.eraseColor(SK_ColorWHITE);
SkPMColor* bitmapPixels = (SkPMColor*)bitmap.getPixels();
// do pixel-by-pixel copy to deal with RGBA ordering conversions
for (int y = 0; y < height; y++) {
char *rowData = imgData;
for (int x = 0; x < width; x++) {
uint8_t a = rowData[3];
uint8_t r = rowData[2];
uint8_t g = rowData[1];
uint8_t b = rowData[0];
*bitmapPixels = SkPreMultiplyARGB(a, r, g, b);
bitmapPixels++;
rowData += 4;
}
imgData += rowSize;
}
output->swap(bitmap);
return true;
}
#endif // SK_BUILD_POPPLER
#ifdef SK_BUILD_NATIVE_PDF_RENDERER
bool SkNativeRasterizePDF(SkStream* pdf, SkBitmap* output) {
return SkPDFNativeRenderToBitmap(pdf, output);
}
#endif // SK_BUILD_NATIVE_PDF_RENDERER
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