modules/video_processing: refactor interface->include + more.

webrtc/modules/video_processing/main/source/content_analysis_sse2.cc

Index: webrtc/modules/video_processing/main/source/content_analysis_sse2.cc
diff --git a/webrtc/modules/video_processing/main/source/content_analysis_sse2.cc b/webrtc/modules/video_processing/main/source/content_analysis_sse2.cc
deleted file mode 100644
index 17b64ff28043b93a09f1b3a706c33b5f1ffb5a6c..0000000000000000000000000000000000000000
--- a/webrtc/modules/video_processing/main/source/content_analysis_sse2.cc
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "webrtc/modules/video_processing/main/source/content_analysis.h"
-
-#include <emmintrin.h>
-#include <math.h>
-
-namespace webrtc {
-
-int32_t VPMContentAnalysis::TemporalDiffMetric_SSE2() {
-  uint32_t num_pixels = 0;       // counter for # of pixels
-  const uint8_t* imgBufO = orig_frame_ + border_*width_ + border_;
-  const uint8_t* imgBufP = prev_frame_ + border_*width_ + border_;
-
-  const int32_t width_end = ((width_ - 2*border_) & -16) + border_;
-
-  __m128i sad_64   = _mm_setzero_si128();
-  __m128i sum_64   = _mm_setzero_si128();
-  __m128i sqsum_64 = _mm_setzero_si128();
-  const __m128i z  = _mm_setzero_si128();
-
-  for (uint16_t i = 0; i < (height_ - 2*border_); i += skip_num_) {
-    __m128i sqsum_32  = _mm_setzero_si128();
-
-    const uint8_t *lineO = imgBufO;
-    const uint8_t *lineP = imgBufP;
-
-    // Work on 16 pixels at a time.  For HD content with a width of 1920
-    // this loop will run ~67 times (depending on border).  Maximum for
-    // abs(o-p) and sum(o) will be 255. _mm_sad_epu8 produces 2 64 bit
-    // results which are then accumulated.  There is no chance of
-    // rollover for these two accumulators.
-    // o*o will have a maximum of 255*255 = 65025.  This will roll over
-    // a 16 bit accumulator as 67*65025 > 65535, but will fit in a
-    // 32 bit accumulator.
-    for (uint16_t j = 0; j < width_end - border_; j += 16) {
-      const __m128i o = _mm_loadu_si128((__m128i*)(lineO));
-      const __m128i p = _mm_loadu_si128((__m128i*)(lineP));
-
-      lineO += 16;
-      lineP += 16;
-
-      // Abs pixel difference between frames.
-      sad_64 = _mm_add_epi64 (sad_64, _mm_sad_epu8(o, p));
-
-      // sum of all pixels in frame
-      sum_64 = _mm_add_epi64 (sum_64, _mm_sad_epu8(o, z));
-
-      // Squared sum of all pixels in frame.
-      const __m128i olo = _mm_unpacklo_epi8(o,z);
-      const __m128i ohi = _mm_unpackhi_epi8(o,z);
-
-      const __m128i sqsum_32_lo = _mm_madd_epi16(olo, olo);
-      const __m128i sqsum_32_hi = _mm_madd_epi16(ohi, ohi);
-
-      sqsum_32 = _mm_add_epi32(sqsum_32, sqsum_32_lo);
-      sqsum_32 = _mm_add_epi32(sqsum_32, sqsum_32_hi);
-    }
-
-    // Add to 64 bit running sum as to not roll over.
-    sqsum_64 = _mm_add_epi64(sqsum_64,
-        _mm_add_epi64(_mm_unpackhi_epi32(sqsum_32,z),
-        _mm_unpacklo_epi32(sqsum_32,z)));
-
-    imgBufO += width_ * skip_num_;
-    imgBufP += width_ * skip_num_;
-    num_pixels += (width_end - border_);
-  }
-
-  __m128i sad_final_128;
-  __m128i sum_final_128;
-  __m128i sqsum_final_128;
-
-  // Bring sums out of vector registers and into integer register
-  // domain, summing them along the way.
-  _mm_store_si128 (&sad_final_128, sad_64);
-  _mm_store_si128 (&sum_final_128, sum_64);
-  _mm_store_si128 (&sqsum_final_128, sqsum_64);
-
-  uint64_t *sad_final_64 = reinterpret_cast<uint64_t*>(&sad_final_128);
-  uint64_t *sum_final_64 = reinterpret_cast<uint64_t*>(&sum_final_128);
-  uint64_t *sqsum_final_64 = reinterpret_cast<uint64_t*>(&sqsum_final_128);
-
-  const uint32_t pixelSum = sum_final_64[0] + sum_final_64[1];
-  const uint64_t pixelSqSum = sqsum_final_64[0] + sqsum_final_64[1];
-  const uint32_t tempDiffSum = sad_final_64[0] + sad_final_64[1];
-
-  // Default.
-  motion_magnitude_ = 0.0f;
-
-  if (tempDiffSum == 0) return VPM_OK;
-
-  // Normalize over all pixels.
-  const float tempDiffAvg = (float)tempDiffSum / (float)(num_pixels);
-  const float pixelSumAvg = (float)pixelSum / (float)(num_pixels);
-  const float pixelSqSumAvg = (float)pixelSqSum / (float)(num_pixels);
-  float contrast = pixelSqSumAvg - (pixelSumAvg * pixelSumAvg);
-
-  if (contrast > 0.0) {
-    contrast = sqrt(contrast);
-    motion_magnitude_ = tempDiffAvg/contrast;
-  }
-
-  return VPM_OK;
-}
-
-int32_t VPMContentAnalysis::ComputeSpatialMetrics_SSE2() {
-  const uint8_t* imgBuf = orig_frame_ + border_*width_;
-  const int32_t width_end = ((width_ - 2 * border_) & -16) + border_;
-
-  __m128i se_32  = _mm_setzero_si128();
-  __m128i sev_32 = _mm_setzero_si128();
-  __m128i seh_32 = _mm_setzero_si128();
-  __m128i msa_32 = _mm_setzero_si128();
-  const __m128i z = _mm_setzero_si128();
-
-  // Error is accumulated as a 32 bit value.  Looking at HD content with a
-  // height of 1080 lines, or about 67 macro blocks.  If the 16 bit row
-  // value is maxed out at 65529 for every row, 65529*1080 = 70777800, which
-  // will not roll over a 32 bit accumulator.
-  // skip_num_ is also used to reduce the number of rows
-  for (int32_t i = 0; i < (height_ - 2*border_); i += skip_num_) {
-    __m128i se_16  = _mm_setzero_si128();
-    __m128i sev_16 = _mm_setzero_si128();
-    __m128i seh_16 = _mm_setzero_si128();
-    __m128i msa_16 = _mm_setzero_si128();
-
-    // Row error is accumulated as a 16 bit value.  There are 8
-    // accumulators.  Max value of a 16 bit number is 65529.  Looking
-    // at HD content, 1080p, has a width of 1920, 120 macro blocks.
-    // A mb at a time is processed at a time.  Absolute max error at
-    // a point would be abs(0-255+255+255+255) which equals 1020.
-    // 120*1020 = 122400.  The probability of hitting this is quite low
-    // on well behaved content.  A specially crafted image could roll over.
-    // border_ could also be adjusted to concentrate on just the center of
-    // the images for an HD capture in order to reduce the possiblity of
-    // rollover.
-    const uint8_t *lineTop = imgBuf - width_ + border_;
-    const uint8_t *lineCen = imgBuf + border_;
-    const uint8_t *lineBot = imgBuf + width_ + border_;
-
-    for (int32_t j = 0; j < width_end - border_; j += 16) {
-      const __m128i t = _mm_loadu_si128((__m128i*)(lineTop));
-      const __m128i l = _mm_loadu_si128((__m128i*)(lineCen - 1));
-      const __m128i c = _mm_loadu_si128((__m128i*)(lineCen));
-      const __m128i r = _mm_loadu_si128((__m128i*)(lineCen + 1));
-      const __m128i b = _mm_loadu_si128((__m128i*)(lineBot));
-
-      lineTop += 16;
-      lineCen += 16;
-      lineBot += 16;
-
-      // center pixel unpacked
-      __m128i clo = _mm_unpacklo_epi8(c,z);
-      __m128i chi = _mm_unpackhi_epi8(c,z);
-
-      // left right pixels unpacked and added together
-      const __m128i lrlo = _mm_add_epi16(_mm_unpacklo_epi8(l,z),
-                                        _mm_unpacklo_epi8(r,z));
-      const __m128i lrhi = _mm_add_epi16(_mm_unpackhi_epi8(l,z),
-                                         _mm_unpackhi_epi8(r,z));
-
-      // top & bottom pixels unpacked and added together
-      const __m128i tblo = _mm_add_epi16(_mm_unpacklo_epi8(t,z),
-                                         _mm_unpacklo_epi8(b,z));
-      const __m128i tbhi = _mm_add_epi16(_mm_unpackhi_epi8(t,z),
-                                         _mm_unpackhi_epi8(b,z));
-
-      // running sum of all pixels
-      msa_16 = _mm_add_epi16(msa_16, _mm_add_epi16(chi, clo));
-
-      clo = _mm_slli_epi16(clo, 1);
-      chi = _mm_slli_epi16(chi, 1);
-      const __m128i sevtlo = _mm_subs_epi16(clo, tblo);
-      const __m128i sevthi = _mm_subs_epi16(chi, tbhi);
-      const __m128i sehtlo = _mm_subs_epi16(clo, lrlo);
-      const __m128i sehthi = _mm_subs_epi16(chi, lrhi);
-
-      clo = _mm_slli_epi16(clo, 1);
-      chi = _mm_slli_epi16(chi, 1);
-      const __m128i setlo = _mm_subs_epi16(clo, _mm_add_epi16(lrlo, tblo));
-      const __m128i sethi = _mm_subs_epi16(chi, _mm_add_epi16(lrhi, tbhi));
-
-      // Add to 16 bit running sum
-      se_16  = _mm_add_epi16(se_16, _mm_max_epi16(setlo,
-          _mm_subs_epi16(z, setlo)));
-      se_16  = _mm_add_epi16(se_16, _mm_max_epi16(sethi,
-          _mm_subs_epi16(z, sethi)));
-      sev_16 = _mm_add_epi16(sev_16, _mm_max_epi16(sevtlo,
-                                             _mm_subs_epi16(z, sevtlo)));
-      sev_16 = _mm_add_epi16(sev_16, _mm_max_epi16(sevthi,
-          _mm_subs_epi16(z, sevthi)));
-      seh_16 = _mm_add_epi16(seh_16, _mm_max_epi16(sehtlo,
-            _mm_subs_epi16(z, sehtlo)));
-      seh_16 = _mm_add_epi16(seh_16, _mm_max_epi16(sehthi,
-            _mm_subs_epi16(z, sehthi)));
-    }
-
-    // Add to 32 bit running sum as to not roll over.
-    se_32  = _mm_add_epi32(se_32, _mm_add_epi32(_mm_unpackhi_epi16(se_16,z),
-        _mm_unpacklo_epi16(se_16,z)));
-    sev_32 = _mm_add_epi32(sev_32, _mm_add_epi32(_mm_unpackhi_epi16(sev_16,z),
-        _mm_unpacklo_epi16(sev_16,z)));
-    seh_32 = _mm_add_epi32(seh_32, _mm_add_epi32(_mm_unpackhi_epi16(seh_16,z),
-        _mm_unpacklo_epi16(seh_16,z)));
-    msa_32 = _mm_add_epi32(msa_32, _mm_add_epi32(_mm_unpackhi_epi16(msa_16,z),
-        _mm_unpacklo_epi16(msa_16,z)));
-
-    imgBuf += width_ * skip_num_;
-  }
-
-  __m128i se_128;
-  __m128i sev_128;
-  __m128i seh_128;
-  __m128i msa_128;
-
-  // Bring sums out of vector registers and into integer register
-  // domain, summing them along the way.
-  _mm_store_si128 (&se_128, _mm_add_epi64(_mm_unpackhi_epi32(se_32,z),
-        _mm_unpacklo_epi32(se_32,z)));
-  _mm_store_si128 (&sev_128, _mm_add_epi64(_mm_unpackhi_epi32(sev_32,z),
-      _mm_unpacklo_epi32(sev_32,z)));
-  _mm_store_si128 (&seh_128, _mm_add_epi64(_mm_unpackhi_epi32(seh_32,z),
-      _mm_unpacklo_epi32(seh_32,z)));
-  _mm_store_si128 (&msa_128, _mm_add_epi64(_mm_unpackhi_epi32(msa_32,z),
-      _mm_unpacklo_epi32(msa_32,z)));
-
-  uint64_t *se_64 = reinterpret_cast<uint64_t*>(&se_128);
-  uint64_t *sev_64 = reinterpret_cast<uint64_t*>(&sev_128);
-  uint64_t *seh_64 = reinterpret_cast<uint64_t*>(&seh_128);
-  uint64_t *msa_64 = reinterpret_cast<uint64_t*>(&msa_128);
-
-  const uint32_t spatialErrSum  = se_64[0] + se_64[1];
-  const uint32_t spatialErrVSum = sev_64[0] + sev_64[1];
-  const uint32_t spatialErrHSum = seh_64[0] + seh_64[1];
-  const uint32_t pixelMSA = msa_64[0] + msa_64[1];
-
-  // Normalize over all pixels.
-  const float spatialErr  = (float)(spatialErrSum >> 2);
-  const float spatialErrH = (float)(spatialErrHSum >> 1);
-  const float spatialErrV = (float)(spatialErrVSum >> 1);
-  const float norm = (float)pixelMSA;
-
-  // 2X2:
-  spatial_pred_err_ = spatialErr / norm;
-
-  // 1X2:
-  spatial_pred_err_h_ = spatialErrH / norm;
-
-  // 2X1:
-  spatial_pred_err_v_ = spatialErrV / norm;
-
-    return VPM_OK;
-}
-
-}  // namespace webrtc