libvpx: Add VP9 decoder.

source/libvpx/vp9/encoder/x86/vp9_variance_mmx.c

+/*
+ *  Copyright (c) 2010 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 "vpx_config.h"
+#include "vp9/encoder/vp9_variance.h"
+#include "vp9/common/vp9_pragmas.h"
+#include "vpx_ports/mem.h"
+
+extern void filter_block1d_h6_mmx
+(
+  const unsigned char *src_ptr,
+  unsigned short *output_ptr,
+  unsigned int src_pixels_per_line,
+  unsigned int pixel_step,
+  unsigned int output_height,
+  unsigned int output_width,
+  short *vp7_filter
+);
+extern void filter_block1d_v6_mmx
+(
+  const short *src_ptr,
+  unsigned char *output_ptr,
+  unsigned int pixels_per_line,
+  unsigned int pixel_step,
+  unsigned int output_height,
+  unsigned int output_width,
+  short *vp7_filter
+);
+
+extern unsigned int vp9_get_mb_ss_mmx(const short *src_ptr);
+extern unsigned int vp9_get8x8var_mmx
+(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *SSE,
+  int *Sum
+);
+extern unsigned int vp9_get4x4var_mmx
+(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *SSE,
+  int *Sum
+);
+extern void vp9_filter_block2d_bil4x4_var_mmx
+(
+  const unsigned char *ref_ptr,
+  int ref_pixels_per_line,
+  const unsigned char *src_ptr,
+  int src_pixels_per_line,
+  const short *HFilter,
+  const short *VFilter,
+  int *sum,
+  unsigned int *sumsquared
+);
+extern void vp9_filter_block2d_bil_var_mmx
+(
+  const unsigned char *ref_ptr,
+  int ref_pixels_per_line,
+  const unsigned char *src_ptr,
+  int src_pixels_per_line,
+  unsigned int Height,
+  const short *HFilter,
+  const short *VFilter,
+  int *sum,
+  unsigned int *sumsquared
+);
+
+
+unsigned int vp9_variance4x4_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  unsigned int var;
+  int avg;
+
+  vp9_get4x4var_mmx(src_ptr, source_stride, ref_ptr, recon_stride, &var, &avg);
+  *sse = var;
+  return (var - (((unsigned int)avg * avg) >> 4));
+
+}
+
+unsigned int vp9_variance8x8_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  unsigned int var;
+  int avg;
+
+  vp9_get8x8var_mmx(src_ptr, source_stride, ref_ptr, recon_stride, &var, &avg);
+  *sse = var;
+
+  return (var - (((unsigned int)avg * avg) >> 6));
+
+}
+
+unsigned int vp9_mse16x16_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  unsigned int sse0, sse1, sse2, sse3, var;
+  int sum0, sum1, sum2, sum3;
+
+
+  vp9_get8x8var_mmx(src_ptr, source_stride, ref_ptr, recon_stride, &sse0, &sum0);
+  vp9_get8x8var_mmx(src_ptr + 8, source_stride, ref_ptr + 8, recon_stride, &sse1, &sum1);
+  vp9_get8x8var_mmx(src_ptr + 8 * source_stride, source_stride, ref_ptr + 8 * recon_stride, recon_stride, &sse2, &sum2);
+  vp9_get8x8var_mmx(src_ptr + 8 * source_stride + 8, source_stride, ref_ptr + 8 * recon_stride + 8, recon_stride, &sse3, &sum3);
+
+  var = sse0 + sse1 + sse2 + sse3;
+  *sse = var;
+  return var;
+}
+
+
+unsigned int vp9_variance16x16_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  unsigned int sse0, sse1, sse2, sse3, var;
+  int sum0, sum1, sum2, sum3, avg;
+
+
+  vp9_get8x8var_mmx(src_ptr, source_stride, ref_ptr, recon_stride, &sse0, &sum0);
+  vp9_get8x8var_mmx(src_ptr + 8, source_stride, ref_ptr + 8, recon_stride, &sse1, &sum1);
+  vp9_get8x8var_mmx(src_ptr + 8 * source_stride, source_stride, ref_ptr + 8 * recon_stride, recon_stride, &sse2, &sum2);
+  vp9_get8x8var_mmx(src_ptr + 8 * source_stride + 8, source_stride, ref_ptr + 8 * recon_stride + 8, recon_stride, &sse3, &sum3);
+
+  var = sse0 + sse1 + sse2 + sse3;
+  avg = sum0 + sum1 + sum2 + sum3;
+  *sse = var;
+  return (var - (((unsigned int)avg * avg) >> 8));
+}
+
+unsigned int vp9_variance16x8_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  unsigned int sse0, sse1, var;
+  int sum0, sum1, avg;
+
+  vp9_get8x8var_mmx(src_ptr, source_stride, ref_ptr, recon_stride, &sse0, &sum0);
+  vp9_get8x8var_mmx(src_ptr + 8, source_stride, ref_ptr + 8, recon_stride, &sse1, &sum1);
+
+  var = sse0 + sse1;
+  avg = sum0 + sum1;
+  *sse = var;
+  return (var - (((unsigned int)avg * avg) >> 7));
+
+}
+
+
+unsigned int vp9_variance8x16_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  unsigned int sse0, sse1, var;
+  int sum0, sum1, avg;
+
+  vp9_get8x8var_mmx(src_ptr, source_stride, ref_ptr, recon_stride, &sse0, &sum0);
+  vp9_get8x8var_mmx(src_ptr + 8 * source_stride, source_stride, ref_ptr + 8 * recon_stride, recon_stride, &sse1, &sum1);
+
+  var = sse0 + sse1;
+  avg = sum0 + sum1;
+  *sse = var;
+
+  return (var - (((unsigned int)avg * avg) >> 7));
+
+}
+
+DECLARE_ALIGNED(16, extern const short, vp9_bilinear_filters_mmx[16][8]);
+
+unsigned int vp9_sub_pixel_variance4x4_mmx
+(
+  const unsigned char  *src_ptr,
+  int  src_pixels_per_line,
+  int  xoffset,
+  int  yoffset,
+  const unsigned char *dst_ptr,
+  int dst_pixels_per_line,
+  unsigned int *sse)
+
+{
+  int xsum;
+  unsigned int xxsum;
+  vp9_filter_block2d_bil4x4_var_mmx(
+    src_ptr, src_pixels_per_line,
+    dst_ptr, dst_pixels_per_line,
+    vp9_bilinear_filters_mmx[xoffset], vp9_bilinear_filters_mmx[yoffset],
+    &xsum, &xxsum
+  );
+  *sse = xxsum;
+  return (xxsum - (((unsigned int)xsum * xsum) >> 4));
+}
+
+
+unsigned int vp9_sub_pixel_variance8x8_mmx
+(
+  const unsigned char  *src_ptr,
+  int  src_pixels_per_line,
+  int  xoffset,
+  int  yoffset,
+  const unsigned char *dst_ptr,
+  int dst_pixels_per_line,
+  unsigned int *sse
+) {
+
+  int xsum;
+  unsigned int xxsum;
+  vp9_filter_block2d_bil_var_mmx(
+    src_ptr, src_pixels_per_line,
+    dst_ptr, dst_pixels_per_line, 8,
+    vp9_bilinear_filters_mmx[xoffset], vp9_bilinear_filters_mmx[yoffset],
+    &xsum, &xxsum
+  );
+  *sse = xxsum;
+  return (xxsum - (((unsigned int)xsum * xsum) >> 6));
+}
+
+unsigned int vp9_sub_pixel_variance16x16_mmx
+(
+  const unsigned char  *src_ptr,
+  int  src_pixels_per_line,
+  int  xoffset,
+  int  yoffset,
+  const unsigned char *dst_ptr,
+  int dst_pixels_per_line,
+  unsigned int *sse
+) {
+
+  int xsum0, xsum1;
+  unsigned int xxsum0, xxsum1;
+
+  vp9_filter_block2d_bil_var_mmx(
+    src_ptr, src_pixels_per_line,
+    dst_ptr, dst_pixels_per_line, 16,
+    vp9_bilinear_filters_mmx[xoffset], vp9_bilinear_filters_mmx[yoffset],
+    &xsum0, &xxsum0
+  );
+
+  vp9_filter_block2d_bil_var_mmx(
+    src_ptr + 8, src_pixels_per_line,
+    dst_ptr + 8, dst_pixels_per_line, 16,
+    vp9_bilinear_filters_mmx[xoffset], vp9_bilinear_filters_mmx[yoffset],
+    &xsum1, &xxsum1
+  );
+
+  xsum0 += xsum1;
+  xxsum0 += xxsum1;
+
+  *sse = xxsum0;
+  return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+
+
+}
+
+unsigned int vp9_sub_pixel_mse16x16_mmx(
+  const unsigned char  *src_ptr,
+  int  src_pixels_per_line,
+  int  xoffset,
+  int  yoffset,
+  const unsigned char *dst_ptr,
+  int dst_pixels_per_line,
+  unsigned int *sse
+) {
+  vp9_sub_pixel_variance16x16_mmx(src_ptr, src_pixels_per_line, xoffset, yoffset, dst_ptr, dst_pixels_per_line, sse);
+  return *sse;
+}
+
+unsigned int vp9_sub_pixel_variance16x8_mmx
+(
+  const unsigned char  *src_ptr,
+  int  src_pixels_per_line,
+  int  xoffset,
+  int  yoffset,
+  const unsigned char *dst_ptr,
+  int dst_pixels_per_line,
+  unsigned int *sse
+) {
+  int xsum0, xsum1;
+  unsigned int xxsum0, xxsum1;
+
+
+  vp9_filter_block2d_bil_var_mmx(
+    src_ptr, src_pixels_per_line,
+    dst_ptr, dst_pixels_per_line, 8,
+    vp9_bilinear_filters_mmx[xoffset], vp9_bilinear_filters_mmx[yoffset],
+    &xsum0, &xxsum0
+  );
+
+
+  vp9_filter_block2d_bil_var_mmx(
+    src_ptr + 8, src_pixels_per_line,
+    dst_ptr + 8, dst_pixels_per_line, 8,
+    vp9_bilinear_filters_mmx[xoffset], vp9_bilinear_filters_mmx[yoffset],
+    &xsum1, &xxsum1
+  );
+
+  xsum0 += xsum1;
+  xxsum0 += xxsum1;
+
+  *sse = xxsum0;
+  return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 7));
+}
+
+unsigned int vp9_sub_pixel_variance8x16_mmx
+(
+  const unsigned char  *src_ptr,
+  int  src_pixels_per_line,
+  int  xoffset,
+  int  yoffset,
+  const unsigned char *dst_ptr,
+  int dst_pixels_per_line,
+  unsigned int *sse
+) {
+  int xsum;
+  unsigned int xxsum;
+  vp9_filter_block2d_bil_var_mmx(
+    src_ptr, src_pixels_per_line,
+    dst_ptr, dst_pixels_per_line, 16,
+    vp9_bilinear_filters_mmx[xoffset], vp9_bilinear_filters_mmx[yoffset],
+    &xsum, &xxsum
+  );
+  *sse = xxsum;
+  return (xxsum - (((unsigned int)xsum * xsum) >> 7));
+}
+
+
+unsigned int vp9_variance_halfpixvar16x16_h_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  return vp9_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 8, 0,
+                                         ref_ptr, recon_stride, sse);
+}
+
+
+unsigned int vp9_variance_halfpixvar16x16_v_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  return vp9_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 0, 8,
+                                         ref_ptr, recon_stride, sse);
+}
+
+
+unsigned int vp9_variance_halfpixvar16x16_hv_mmx(
+  const unsigned char *src_ptr,
+  int  source_stride,
+  const unsigned char *ref_ptr,
+  int  recon_stride,
+  unsigned int *sse) {
+  return vp9_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 8, 8,
+                                         ref_ptr, recon_stride, sse);
+}