0164a1cc5b
Allows building the library with the gcc -pedantic option, for improved
portabilty. In particular, this commit removes usage of C99/C++ style
single-line comments and dynamic struct initializers. This is a
continuation of the work done in commit 97b766a46, which removed most
of these warnings for decode only builds.
Change-Id: Id453d9c1d9f44cc0381b10c3869fabb0184d5966
459 lines
13 KiB
C
459 lines
13 KiB
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 "variance.h"
|
|
#include "filter.h"
|
|
|
|
|
|
unsigned int vp8_get_mb_ss_c
|
|
(
|
|
const short *src_ptr
|
|
)
|
|
{
|
|
unsigned int i = 0, sum = 0;
|
|
|
|
do
|
|
{
|
|
sum += (src_ptr[i] * src_ptr[i]);
|
|
i++;
|
|
}
|
|
while (i < 256);
|
|
|
|
return sum;
|
|
}
|
|
|
|
|
|
static void variance(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
int w,
|
|
int h,
|
|
unsigned int *sse,
|
|
int *sum)
|
|
{
|
|
int i, j;
|
|
int diff;
|
|
|
|
*sum = 0;
|
|
*sse = 0;
|
|
|
|
for (i = 0; i < h; i++)
|
|
{
|
|
for (j = 0; j < w; j++)
|
|
{
|
|
diff = src_ptr[j] - ref_ptr[j];
|
|
*sum += diff;
|
|
*sse += diff * diff;
|
|
}
|
|
|
|
src_ptr += source_stride;
|
|
ref_ptr += recon_stride;
|
|
}
|
|
}
|
|
|
|
|
|
unsigned int vp8_variance16x16_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
unsigned int var;
|
|
int avg;
|
|
|
|
|
|
variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
|
|
*sse = var;
|
|
return (var - ((unsigned int)(avg * avg) >> 8));
|
|
}
|
|
|
|
unsigned int vp8_variance8x16_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
unsigned int var;
|
|
int avg;
|
|
|
|
|
|
variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 16, &var, &avg);
|
|
*sse = var;
|
|
return (var - ((unsigned int)(avg * avg) >> 7));
|
|
}
|
|
|
|
unsigned int vp8_variance16x8_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
unsigned int var;
|
|
int avg;
|
|
|
|
|
|
variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 8, &var, &avg);
|
|
*sse = var;
|
|
return (var - ((unsigned int)(avg * avg) >> 7));
|
|
}
|
|
|
|
|
|
unsigned int vp8_variance8x8_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
unsigned int var;
|
|
int avg;
|
|
|
|
|
|
variance(src_ptr, source_stride, ref_ptr, recon_stride, 8, 8, &var, &avg);
|
|
*sse = var;
|
|
return (var - ((unsigned int)(avg * avg) >> 6));
|
|
}
|
|
|
|
unsigned int vp8_variance4x4_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
unsigned int var;
|
|
int avg;
|
|
|
|
|
|
variance(src_ptr, source_stride, ref_ptr, recon_stride, 4, 4, &var, &avg);
|
|
*sse = var;
|
|
return (var - ((unsigned int)(avg * avg) >> 4));
|
|
}
|
|
|
|
|
|
unsigned int vp8_mse16x16_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
unsigned int var;
|
|
int avg;
|
|
|
|
variance(src_ptr, source_stride, ref_ptr, recon_stride, 16, 16, &var, &avg);
|
|
*sse = var;
|
|
return var;
|
|
}
|
|
|
|
|
|
/****************************************************************************
|
|
*
|
|
* ROUTINE : filter_block2d_bil_first_pass
|
|
*
|
|
* INPUTS : UINT8 *src_ptr : Pointer to source block.
|
|
* UINT32 src_pixels_per_line : Stride of input block.
|
|
* UINT32 pixel_step : Offset between filter input samples (see notes).
|
|
* UINT32 output_height : Input block height.
|
|
* UINT32 output_width : Input block width.
|
|
* INT32 *vp8_filter : Array of 2 bi-linear filter taps.
|
|
*
|
|
* OUTPUTS : INT32 *output_ptr : Pointer to filtered block.
|
|
*
|
|
* RETURNS : void
|
|
*
|
|
* FUNCTION : Applies a 1-D 2-tap bi-linear filter to the source block in
|
|
* either horizontal or vertical direction to produce the
|
|
* filtered output block. Used to implement first-pass
|
|
* of 2-D separable filter.
|
|
*
|
|
* SPECIAL NOTES : Produces INT32 output to retain precision for next pass.
|
|
* Two filter taps should sum to VP8_FILTER_WEIGHT.
|
|
* pixel_step defines whether the filter is applied
|
|
* horizontally (pixel_step=1) or vertically (pixel_step=stride).
|
|
* It defines the offset required to move from one input
|
|
* to the next.
|
|
*
|
|
****************************************************************************/
|
|
static void var_filter_block2d_bil_first_pass
|
|
(
|
|
const unsigned char *src_ptr,
|
|
unsigned short *output_ptr,
|
|
unsigned int src_pixels_per_line,
|
|
int pixel_step,
|
|
unsigned int output_height,
|
|
unsigned int output_width,
|
|
const short *vp8_filter
|
|
)
|
|
{
|
|
unsigned int i, j;
|
|
|
|
for (i = 0; i < output_height; i++)
|
|
{
|
|
for (j = 0; j < output_width; j++)
|
|
{
|
|
/* Apply bilinear filter */
|
|
output_ptr[j] = (((int)src_ptr[0] * vp8_filter[0]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[1]) +
|
|
(VP8_FILTER_WEIGHT / 2)) >> VP8_FILTER_SHIFT;
|
|
src_ptr++;
|
|
}
|
|
|
|
/* Next row... */
|
|
src_ptr += src_pixels_per_line - output_width;
|
|
output_ptr += output_width;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
*
|
|
* ROUTINE : filter_block2d_bil_second_pass
|
|
*
|
|
* INPUTS : INT32 *src_ptr : Pointer to source block.
|
|
* UINT32 src_pixels_per_line : Stride of input block.
|
|
* UINT32 pixel_step : Offset between filter input samples (see notes).
|
|
* UINT32 output_height : Input block height.
|
|
* UINT32 output_width : Input block width.
|
|
* INT32 *vp8_filter : Array of 2 bi-linear filter taps.
|
|
*
|
|
* OUTPUTS : UINT16 *output_ptr : Pointer to filtered block.
|
|
*
|
|
* RETURNS : void
|
|
*
|
|
* FUNCTION : Applies a 1-D 2-tap bi-linear filter to the source block in
|
|
* either horizontal or vertical direction to produce the
|
|
* filtered output block. Used to implement second-pass
|
|
* of 2-D separable filter.
|
|
*
|
|
* SPECIAL NOTES : Requires 32-bit input as produced by filter_block2d_bil_first_pass.
|
|
* Two filter taps should sum to VP8_FILTER_WEIGHT.
|
|
* pixel_step defines whether the filter is applied
|
|
* horizontally (pixel_step=1) or vertically (pixel_step=stride).
|
|
* It defines the offset required to move from one input
|
|
* to the next.
|
|
*
|
|
****************************************************************************/
|
|
static void var_filter_block2d_bil_second_pass
|
|
(
|
|
const unsigned short *src_ptr,
|
|
unsigned char *output_ptr,
|
|
unsigned int src_pixels_per_line,
|
|
unsigned int pixel_step,
|
|
unsigned int output_height,
|
|
unsigned int output_width,
|
|
const short *vp8_filter
|
|
)
|
|
{
|
|
unsigned int i, j;
|
|
int Temp;
|
|
|
|
for (i = 0; i < output_height; i++)
|
|
{
|
|
for (j = 0; j < output_width; j++)
|
|
{
|
|
/* Apply filter */
|
|
Temp = ((int)src_ptr[0] * vp8_filter[0]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[1]) +
|
|
(VP8_FILTER_WEIGHT / 2);
|
|
output_ptr[j] = (unsigned int)(Temp >> VP8_FILTER_SHIFT);
|
|
src_ptr++;
|
|
}
|
|
|
|
/* Next row... */
|
|
src_ptr += src_pixels_per_line - output_width;
|
|
output_ptr += output_width;
|
|
}
|
|
}
|
|
|
|
|
|
unsigned int vp8_sub_pixel_variance4x4_c
|
|
(
|
|
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
|
|
)
|
|
{
|
|
unsigned char temp2[20*16];
|
|
const short *HFilter, *VFilter;
|
|
unsigned short FData3[5*4]; /* Temp data bufffer used in filtering */
|
|
|
|
HFilter = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
/* First filter 1d Horizontal */
|
|
var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 5, 4, HFilter);
|
|
|
|
/* Now filter Verticaly */
|
|
var_filter_block2d_bil_second_pass(FData3, temp2, 4, 4, 4, 4, VFilter);
|
|
|
|
return vp8_variance4x4_c(temp2, 4, dst_ptr, dst_pixels_per_line, sse);
|
|
}
|
|
|
|
|
|
unsigned int vp8_sub_pixel_variance8x8_c
|
|
(
|
|
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
|
|
)
|
|
{
|
|
unsigned short FData3[9*8]; /* Temp data bufffer used in filtering */
|
|
unsigned char temp2[20*16];
|
|
const short *HFilter, *VFilter;
|
|
|
|
HFilter = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 9, 8, HFilter);
|
|
var_filter_block2d_bil_second_pass(FData3, temp2, 8, 8, 8, 8, VFilter);
|
|
|
|
return vp8_variance8x8_c(temp2, 8, dst_ptr, dst_pixels_per_line, sse);
|
|
}
|
|
|
|
unsigned int vp8_sub_pixel_variance16x16_c
|
|
(
|
|
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
|
|
)
|
|
{
|
|
unsigned short FData3[17*16]; /* Temp data bufffer used in filtering */
|
|
unsigned char temp2[20*16];
|
|
const short *HFilter, *VFilter;
|
|
|
|
HFilter = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 17, 16, HFilter);
|
|
var_filter_block2d_bil_second_pass(FData3, temp2, 16, 16, 16, 16, VFilter);
|
|
|
|
return vp8_variance16x16_c(temp2, 16, dst_ptr, dst_pixels_per_line, sse);
|
|
}
|
|
|
|
|
|
unsigned int vp8_variance_halfpixvar16x16_h_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
return vp8_sub_pixel_variance16x16_c(src_ptr, source_stride, 4, 0,
|
|
ref_ptr, recon_stride, sse);
|
|
}
|
|
|
|
|
|
unsigned int vp8_variance_halfpixvar16x16_v_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
return vp8_sub_pixel_variance16x16_c(src_ptr, source_stride, 0, 4,
|
|
ref_ptr, recon_stride, sse);
|
|
}
|
|
|
|
|
|
unsigned int vp8_variance_halfpixvar16x16_hv_c(
|
|
const unsigned char *src_ptr,
|
|
int source_stride,
|
|
const unsigned char *ref_ptr,
|
|
int recon_stride,
|
|
unsigned int *sse)
|
|
{
|
|
return vp8_sub_pixel_variance16x16_c(src_ptr, source_stride, 4, 4,
|
|
ref_ptr, recon_stride, sse);
|
|
}
|
|
|
|
|
|
unsigned int vp8_sub_pixel_mse16x16_c
|
|
(
|
|
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
|
|
)
|
|
{
|
|
vp8_sub_pixel_variance16x16_c(src_ptr, src_pixels_per_line, xoffset, yoffset, dst_ptr, dst_pixels_per_line, sse);
|
|
return *sse;
|
|
}
|
|
|
|
unsigned int vp8_sub_pixel_variance16x8_c
|
|
(
|
|
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
|
|
)
|
|
{
|
|
unsigned short FData3[16*9]; /* Temp data bufffer used in filtering */
|
|
unsigned char temp2[20*16];
|
|
const short *HFilter, *VFilter;
|
|
|
|
HFilter = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 9, 16, HFilter);
|
|
var_filter_block2d_bil_second_pass(FData3, temp2, 16, 16, 8, 16, VFilter);
|
|
|
|
return vp8_variance16x8_c(temp2, 16, dst_ptr, dst_pixels_per_line, sse);
|
|
}
|
|
|
|
unsigned int vp8_sub_pixel_variance8x16_c
|
|
(
|
|
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
|
|
)
|
|
{
|
|
unsigned short FData3[9*16]; /* Temp data bufffer used in filtering */
|
|
unsigned char temp2[20*16];
|
|
const short *HFilter, *VFilter;
|
|
|
|
|
|
HFilter = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
|
|
var_filter_block2d_bil_first_pass(src_ptr, FData3, src_pixels_per_line, 1, 17, 8, HFilter);
|
|
var_filter_block2d_bil_second_pass(FData3, temp2, 8, 8, 16, 8, VFilter);
|
|
|
|
return vp8_variance8x16_c(temp2, 8, dst_ptr, dst_pixels_per_line, sse);
|
|
}
|