Clean up poppler code.

src/utils/SkPDFRasterizer.cpp

-
-/*
- * 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) {
-  SkAutoTDelete<SkStream> streamDeleter(pdf);
-  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.tryAllocN32Pixels(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) {
-    SkAutoTDelete<SkStream> streamDeleter(pdf);
-    return SkPDFNativeRenderToBitmap(pdf, output);
-}
-#endif  // SK_BUILD_NATIVE_PDF_RENDERER