author Nathan Froyd <>
Wed, 07 Oct 2015 16:50:25 -0400
changeset 287061 91d4539e00cecb658604e021675a923c60ef3235
parent 271601 91d6e262b662a0b4e47358665e222d3927337af9
permissions -rw-r--r--
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's to reflect the new naming. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/ \ ipc/ipdl/ipdl/ \ dom/bindings/ \ python/lldbutils/lldbutils/ # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi

// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <emmintrin.h>
#include "yuv_row.h"

namespace mozilla {
namespace gfx {

// FilterRows combines two rows of the image using linear interpolation.
// SSE2 version does 16 pixels at a time.
void FilterRows_SSE2(uint8* ybuf, const uint8* y0_ptr, const uint8* y1_ptr,
                     int source_width, int source_y_fraction) {
  __m128i zero = _mm_setzero_si128();
  __m128i y1_fraction = _mm_set1_epi16(source_y_fraction);
  __m128i y0_fraction = _mm_set1_epi16(256 - source_y_fraction);

  const __m128i* y0_ptr128 = reinterpret_cast<const __m128i*>(y0_ptr);
  const __m128i* y1_ptr128 = reinterpret_cast<const __m128i*>(y1_ptr);
  __m128i* dest128 = reinterpret_cast<__m128i*>(ybuf);
  __m128i* end128 = reinterpret_cast<__m128i*>(ybuf + source_width);

  do {
    __m128i y0 = _mm_loadu_si128(y0_ptr128);
    __m128i y1 = _mm_loadu_si128(y1_ptr128);
    __m128i y2 = _mm_unpackhi_epi8(y0, zero);
    __m128i y3 = _mm_unpackhi_epi8(y1, zero);
    y0 = _mm_unpacklo_epi8(y0, zero);
    y1 = _mm_unpacklo_epi8(y1, zero);
    y0 = _mm_mullo_epi16(y0, y0_fraction);
    y1 = _mm_mullo_epi16(y1, y1_fraction);
    y2 = _mm_mullo_epi16(y2, y0_fraction);
    y3 = _mm_mullo_epi16(y3, y1_fraction);
    y0 = _mm_add_epi16(y0, y1);
    y2 = _mm_add_epi16(y2, y3);
    y0 = _mm_srli_epi16(y0, 8);
    y2 = _mm_srli_epi16(y2, 8);
    y0 = _mm_packus_epi16(y0, y2);
    *dest128++ = y0;
  } while (dest128 < end128);

} // namespace gfx
} // namespace mozilla