Commit 5ca6a366 authored by John Koleszar's avatar John Koleszar

Add 8-tap generic convolver

This commit introduces a new convolution function which will be used to
replace the existing subpixel interpolation functions. It is much the
same as the existing functions, but allows for changing the filter
kernel on a per-pixel basis, and doesn't bake in knowledge of the
filter to be applied or the size of the resulting block into the
function name.

Replacing the existing subpel filters will come in a later commit.

Change-Id: Ic9a5615f2f456cb77f96741856fc650d6d78bb91
parent a53be609
This diff is collapsed.
......@@ -68,6 +68,7 @@ LIBVPX_TEST_SRCS-yes += vp9_boolcoder_test.cc
LIBVPX_TEST_SRCS-yes += idct8x8_test.cc
endif
LIBVPX_TEST_SRCS-$(CONFIG_VP9) += convolve_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += fdct4x4_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += fdct8x8_test.cc
#LIBVPX_TEST_SRCS-$(CONFIG_VP9_ENCODER) += dct16x16_test.cc
......
This diff is collapsed.
/*
* Copyright (c) 2013 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.
*/
#ifndef VP9_COMMON_CONVOLVE_H_
#define VP9_COMMON_CONVOLVE_H_
#include "vpx/vpx_integer.h"
typedef void (*convolve_fn_t)(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int16_t *filter_x, int x_step_q4,
const int16_t *filter_y, int y_step_q4,
int w, int h);
// Not a convolution, a block copy conforming to the convolution prototype
void vp9_convolve_copy(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int16_t *filter_x, int x_step_q4,
const int16_t *filter_y, int y_step_q4,
int w, int h);
// Not a convolution, a block average conforming to the convolution prototype
void vp9_convolve_avg(const uint8_t *src, int src_stride,
uint8_t *dst, int dst_stride,
const int16_t *filter_x, int x_step_q4,
const int16_t *filter_y, int y_step_q4,
int w, int h);
struct subpix_fn_table {
convolve_fn_t predict[2][2][2]; // horiz, vert, avg
const int16_t (*filter_x)[8];
const int16_t (*filter_y)[8];
int x_step_q4;
int y_step_q4;
};
#endif // VP9_COMMON_CONVOLVE_H_
......@@ -269,6 +269,24 @@ specialize vp9_sub_pixel_variance16x2 sse2
#
# Sub Pixel Filters
#
prototype void vp9_convolve8 "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h"
specialize vp9_convolve8
prototype void vp9_convolve8_horiz "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h"
specialize vp9_convolve8_horiz
prototype void vp9_convolve8_vert "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h"
specialize vp9_convolve8_vert
prototype void vp9_convolve8_avg "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h"
specialize vp9_convolve8_avg
prototype void vp9_convolve8_avg_horiz "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h"
specialize vp9_convolve8_avg_horiz
prototype void vp9_convolve8_avg_vert "const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, const int16_t *filter_x, int x_step_q4, const int16_t *filter_y, int y_step_q4, int w, int h"
specialize vp9_convolve8_avg_vert
prototype void vp9_eighttap_predict16x16 "uint8_t *src_ptr, int src_pixels_per_line, int xoffset, int yoffset, uint8_t *dst_ptr, int dst_pitch"
specialize vp9_eighttap_predict16x16
......
......@@ -16,6 +16,8 @@ VP9_COMMON_SRCS-yes += common/vp9_alloccommon.c
VP9_COMMON_SRCS-yes += common/vp9_asm_com_offsets.c
VP9_COMMON_SRCS-yes += common/vp9_blockd.c
VP9_COMMON_SRCS-yes += common/vp9_coefupdateprobs.h
VP9_COMMON_SRCS-yes += common/vp9_convolve.c
VP9_COMMON_SRCS-yes += common/vp9_convolve.h
VP9_COMMON_SRCS-yes += common/vp9_debugmodes.c
VP9_COMMON_SRCS-yes += common/vp9_default_coef_probs.h
VP9_COMMON_SRCS-yes += common/vp9_entropy.c
......
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