1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/utils/SkPDFRasterizer.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,86 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2013 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +#ifdef SK_BUILD_FOR_WIN32
1.13 +#pragma warning(push)
1.14 +#pragma warning(disable : 4530)
1.15 +#endif
1.16 +
1.17 +#include "SkPDFRasterizer.h"
1.18 +#include "SkColorPriv.h"
1.19 +
1.20 +#ifdef SK_BUILD_NATIVE_PDF_RENDERER
1.21 +#include "SkPdfRenderer.h"
1.22 +#endif // SK_BUILD_NATIVE_PDF_RENDERER
1.23 +
1.24 +#ifdef SK_BUILD_POPPLER
1.25 +#include <poppler-document.h>
1.26 +#include <poppler-image.h>
1.27 +#include <poppler-page.h>
1.28 +#include <poppler-page-renderer.h>
1.29 +#endif // SK_BUILD_POPPLER
1.30 +
1.31 +#ifdef SK_BUILD_POPPLER
1.32 +bool SkPopplerRasterizePDF(SkStream* pdf, SkBitmap* output) {
1.33 + size_t size = pdf->getLength();
1.34 + SkAutoFree buffer(sk_malloc_throw(size));
1.35 + pdf->read(buffer.get(), size);
1.36 +
1.37 + SkAutoTDelete<poppler::document> doc(
1.38 + poppler::document::load_from_raw_data((const char*)buffer.get(), size));
1.39 + if (!doc.get() || doc->is_locked()) {
1.40 + return false;
1.41 + }
1.42 +
1.43 + SkAutoTDelete<poppler::page> page(doc->create_page(0));
1.44 + poppler::page_renderer renderer;
1.45 + poppler::image image = renderer.render_page(page.get());
1.46 +
1.47 + if (!image.is_valid() || image.format() != poppler::image::format_argb32) {
1.48 + return false;
1.49 + }
1.50 +
1.51 + int width = image.width(), height = image.height();
1.52 + size_t rowSize = image.bytes_per_row();
1.53 + char *imgData = image.data();
1.54 +
1.55 + SkBitmap bitmap;
1.56 + if (!bitmap.allocPixels(SkImageInfo::MakeN32Premul(width, height))) {
1.57 + return false;
1.58 + }
1.59 + bitmap.eraseColor(SK_ColorWHITE);
1.60 + SkPMColor* bitmapPixels = (SkPMColor*)bitmap.getPixels();
1.61 +
1.62 + // do pixel-by-pixel copy to deal with RGBA ordering conversions
1.63 + for (int y = 0; y < height; y++) {
1.64 + char *rowData = imgData;
1.65 + for (int x = 0; x < width; x++) {
1.66 + uint8_t a = rowData[3];
1.67 + uint8_t r = rowData[2];
1.68 + uint8_t g = rowData[1];
1.69 + uint8_t b = rowData[0];
1.70 +
1.71 + *bitmapPixels = SkPreMultiplyARGB(a, r, g, b);
1.72 +
1.73 + bitmapPixels++;
1.74 + rowData += 4;
1.75 + }
1.76 + imgData += rowSize;
1.77 + }
1.78 +
1.79 + output->swap(bitmap);
1.80 +
1.81 + return true;
1.82 +}
1.83 +#endif // SK_BUILD_POPPLER
1.84 +
1.85 +#ifdef SK_BUILD_NATIVE_PDF_RENDERER
1.86 +bool SkNativeRasterizePDF(SkStream* pdf, SkBitmap* output) {
1.87 + return SkPDFNativeRenderToBitmap(pdf, output);
1.88 +}
1.89 +#endif // SK_BUILD_NATIVE_PDF_RENDERER
