gfx/ycbcr/yuv_convert_mmx.cpp
author Trevor Saunders <trev.saunders@gmail.com>
Wed, 23 Oct 2013 17:20:55 -0400
changeset 165821 d0732dc3f30ec3cd30d574ca01acec015961b480
parent 60428 d580ec700a1190dd833b059874c4f9b3374ac064
child 284279 91d6e262b662a0b4e47358665e222d3927337af9
permissions -rw-r--r--
[PATCH] bug 922566 - kill dom-config.mk From 6681eaa8bb47ddb4756fd71738771c4c437101c0 Mon Sep 17 00:00:00 2001 --- content/media/webspeech/recognition/Makefile.in | 1 - content/media/webspeech/recognition/moz.build | 5 +- content/media/webspeech/synth/Makefile.in | 1 - content/media/webspeech/synth/pico/Makefile.in | 3 -- dom/alarm/Makefile.in | 2 - dom/apps/src/Makefile.in | 1 - dom/base/Makefile.in | 2 - dom/base/moz.build | 26 ++++++++++- dom/battery/Makefile.in | 1 - dom/bindings/Makefile.in | 3 -- dom/bindings/moz.build | 17 ++++++- dom/bindings/test/Makefile.in | 5 +- dom/bluetooth/Makefile.in | 2 - dom/bluetooth/moz.build | 7 ++- dom/browser-element/Makefile.in | 3 -- dom/browser-element/moz.build | 6 ++- dom/camera/Makefile.in | 1 - dom/camera/moz.build | 5 +- dom/devicestorage/Makefile.in | 1 - dom/dom-config.mk | 61 ------------------------- dom/encoding/Makefile.in | 1 - dom/fmradio/Makefile.in | 2 - dom/fmradio/ipc/Makefile.in | 1 - dom/fmradio/ipc/moz.build | 5 +- dom/fmradio/moz.build | 5 +- dom/icc/src/Makefile.in | 4 -- dom/media/Makefile.in | 3 -- dom/media/moz.build | 6 ++- dom/mobilemessage/src/Makefile.in | 1 - dom/mobilemessage/src/moz.build | 5 +- dom/network/src/Makefile.in | 2 - dom/plugins/base/Makefile.in | 1 - dom/plugins/base/moz.build | 8 +++- dom/power/Makefile.in | 1 - dom/quota/Makefile.in | 1 - dom/system/gonk/Makefile.in | 2 - dom/telephony/Makefile.in | 1 - dom/time/Makefile.in | 1 - dom/wifi/Makefile.in | 5 -- 39 files changed, 85 insertions(+), 123 deletions(-) delete mode 100644 dom/dom-config.mk delete mode 100644 dom/wifi/Makefile.in

// 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 <mmintrin.h>
#include "yuv_row.h"

namespace mozilla {
namespace gfx {

// FilterRows combines two rows of the image using linear interpolation.
// MMX version does 8 pixels at a time.
void FilterRows_MMX(uint8* ybuf, const uint8* y0_ptr, const uint8* y1_ptr,
                    int source_width, int source_y_fraction) {
  __m64 zero = _mm_setzero_si64();
  __m64 y1_fraction = _mm_set1_pi16(source_y_fraction);
  __m64 y0_fraction = _mm_set1_pi16(256 - source_y_fraction);

  const __m64* y0_ptr64 = reinterpret_cast<const __m64*>(y0_ptr);
  const __m64* y1_ptr64 = reinterpret_cast<const __m64*>(y1_ptr);
  __m64* dest64 = reinterpret_cast<__m64*>(ybuf);
  __m64* end64 = reinterpret_cast<__m64*>(ybuf + source_width);

  do {
    __m64 y0 = *y0_ptr64++;
    __m64 y1 = *y1_ptr64++;
    __m64 y2 = _mm_unpackhi_pi8(y0, zero);
    __m64 y3 = _mm_unpackhi_pi8(y1, zero);
    y0 = _mm_unpacklo_pi8(y0, zero);
    y1 = _mm_unpacklo_pi8(y1, zero);
    y0 = _mm_mullo_pi16(y0, y0_fraction);
    y1 = _mm_mullo_pi16(y1, y1_fraction);
    y2 = _mm_mullo_pi16(y2, y0_fraction);
    y3 = _mm_mullo_pi16(y3, y1_fraction);
    y0 = _mm_add_pi16(y0, y1);
    y2 = _mm_add_pi16(y2, y3);
    y0 = _mm_srli_pi16(y0, 8);
    y2 = _mm_srli_pi16(y2, 8);
    y0 = _mm_packs_pu16(y0, y2);
    *dest64++ = y0;
  } while (dest64 < end64);
}

}
}