1 files changed, 125 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp9/encoder/x86/vp9_quantize_sse2.c b/media/libvpx/libvpx/vp9/encoder/x86/vp9_quantize_sse2.c
new file mode 100644
index 0000000000..c877234436
--- /dev/null
+++ b/media/libvpx/libvpx/vp9/encoder/x86/vp9_quantize_sse2.c
@@ -0,0 +1,125 @@
+/*
+ *  Copyright (c) 2014 The WebM 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 <assert.h>
+#include <emmintrin.h>
+#include <xmmintrin.h>
+
+#include "./vp9_rtcd.h"
+#include "vpx/vpx_integer.h"
+#include "vpx_dsp/vpx_dsp_common.h"
+#include "vpx_dsp/x86/bitdepth_conversion_sse2.h"
+#include "vpx_dsp/x86/quantize_sse2.h"
+
+void vp9_quantize_fp_sse2(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                          const int16_t *round_ptr, const int16_t *quant_ptr,
+                          tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                          const int16_t *dequant_ptr, uint16_t *eob_ptr,
+                          const int16_t *scan, const int16_t *iscan) {
+  const __m128i zero = _mm_setzero_si128();
+  __m128i thr;
+  int nzflag;
+  int index = 16;
+  __m128i round, quant, dequant;
+  __m128i coeff0, coeff1, coeff0_sign, coeff1_sign;
+  __m128i qcoeff0, qcoeff1;
+  __m128i eob;
+
+  (void)scan;
+
+  // Setup global values.
+  load_fp_values(round_ptr, &round, quant_ptr, &quant, dequant_ptr, &dequant);
+
+  // Do DC and first 15 AC.
+  coeff0 = load_tran_low(coeff_ptr);
+  coeff1 = load_tran_low(coeff_ptr + 8);
+
+  // Poor man's abs().
+  coeff0_sign = _mm_srai_epi16(coeff0, 15);
+  coeff1_sign = _mm_srai_epi16(coeff1, 15);
+  qcoeff0 = invert_sign_sse2(coeff0, coeff0_sign);
+  qcoeff1 = invert_sign_sse2(coeff1, coeff1_sign);
+
+  qcoeff0 = _mm_adds_epi16(qcoeff0, round);
+  qcoeff0 = _mm_mulhi_epi16(qcoeff0, quant);
+
+  round = _mm_unpackhi_epi64(round, round);
+  quant = _mm_unpackhi_epi64(quant, quant);
+
+  qcoeff1 = _mm_adds_epi16(qcoeff1, round);
+  qcoeff1 = _mm_mulhi_epi16(qcoeff1, quant);
+
+  // Reinsert signs.
+  qcoeff0 = invert_sign_sse2(qcoeff0, coeff0_sign);
+  qcoeff1 = invert_sign_sse2(qcoeff1, coeff1_sign);
+
+  store_tran_low(qcoeff0, qcoeff_ptr);
+  store_tran_low(qcoeff1, qcoeff_ptr + 8);
+
+  qcoeff0 = _mm_mullo_epi16(qcoeff0, dequant);
+  dequant = _mm_unpackhi_epi64(dequant, dequant);
+  qcoeff1 = _mm_mullo_epi16(qcoeff1, dequant);
+
+  store_tran_low(qcoeff0, dqcoeff_ptr);
+  store_tran_low(qcoeff1, dqcoeff_ptr + 8);
+
+  eob = scan_for_eob(&qcoeff0, &qcoeff1, iscan, 0, zero);
+
+  thr = _mm_srai_epi16(dequant, 1);
+
+  // AC only loop.
+  while (index < n_coeffs) {
+    coeff0 = load_tran_low(coeff_ptr + index);
+    coeff1 = load_tran_low(coeff_ptr + index + 8);
+
+    // Poor man's abs().
+    coeff0_sign = _mm_srai_epi16(coeff0, 15);
+    coeff1_sign = _mm_srai_epi16(coeff1, 15);
+    qcoeff0 = invert_sign_sse2(coeff0, coeff0_sign);
+    qcoeff1 = invert_sign_sse2(coeff1, coeff1_sign);
+
+    nzflag = _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff0, thr)) |
+             _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff1, thr));
+
+    if (nzflag) {
+      __m128i eob0;
+      qcoeff0 = _mm_adds_epi16(qcoeff0, round);
+      qcoeff1 = _mm_adds_epi16(qcoeff1, round);
+      qcoeff0 = _mm_mulhi_epi16(qcoeff0, quant);
+      qcoeff1 = _mm_mulhi_epi16(qcoeff1, quant);
+
+      // Reinsert signs.
+      qcoeff0 = invert_sign_sse2(qcoeff0, coeff0_sign);
+      qcoeff1 = invert_sign_sse2(qcoeff1, coeff1_sign);
+
+      store_tran_low(qcoeff0, qcoeff_ptr + index);
+      store_tran_low(qcoeff1, qcoeff_ptr + index + 8);
+
+      qcoeff0 = _mm_mullo_epi16(qcoeff0, dequant);
+      qcoeff1 = _mm_mullo_epi16(qcoeff1, dequant);
+
+      store_tran_low(qcoeff0, dqcoeff_ptr + index);
+      store_tran_low(qcoeff1, dqcoeff_ptr + index + 8);
+
+      eob0 = scan_for_eob(&qcoeff0, &qcoeff1, iscan, index, zero);
+      eob = _mm_max_epi16(eob, eob0);
+    } else {
+      store_zero_tran_low(qcoeff_ptr + index);
+      store_zero_tran_low(qcoeff_ptr + index + 8);
+
+      store_zero_tran_low(dqcoeff_ptr + index);
+      store_zero_tran_low(dqcoeff_ptr + index + 8);
+    }
+
+    index += 16;
+  }
+
+  *eob_ptr = accumulate_eob(eob);
+}