ref: fc5ab625b5f8daa7f9f10667ca022fd404a71f61
dir: libvpx/vpx_dsp/x86/convolve.h
/*
* Copyright (c) 2015 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 VPX_VPX_DSP_X86_CONVOLVE_H_
#define VPX_VPX_DSP_X86_CONVOLVE_H_
#include <assert.h>
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#include "vpx_ports/compiler_attributes.h"
// TODO(chiyotsai@google.com): Refactor the code here. Currently this is pretty
// hacky and awful to read. Note that there is a filter_x[3] == 128 check in
// HIGHBD_FUN_CONV_2D to avoid seg fault due to the fact that the c function
// assumes the filter is always 8 tap.
typedef void filter8_1dfunction(const uint8_t *src_ptr, ptrdiff_t src_pitch,
uint8_t *output_ptr, ptrdiff_t out_pitch,
uint32_t output_height, const int16_t *filter);
// TODO(chiyotsai@google.com): Remove the is_avg argument to the MACROS once we
// have 4-tap vert avg filter.
#define FUN_CONV_1D(name, offset, step_q4, dir, src_start, avg, opt, is_avg) \
void vpx_convolve8_##name##_##opt( \
const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, \
ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, \
int x_step_q4, int y0_q4, int y_step_q4, int w, int h) { \
const int16_t *filter_row = filter[offset]; \
(void)x0_q4; \
(void)x_step_q4; \
(void)y0_q4; \
(void)y_step_q4; \
assert(filter_row[3] != 128); \
assert(step_q4 == 16); \
if (filter_row[0] | filter_row[1] | filter_row[6] | filter_row[7]) { \
const int num_taps = 8; \
while (w >= 16) { \
vpx_filter_block1d16_##dir##8_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
src += 16; \
dst += 16; \
w -= 16; \
} \
if (w == 8) { \
vpx_filter_block1d8_##dir##8_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
} else if (w == 4) { \
vpx_filter_block1d4_##dir##8_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
} \
(void)num_taps; \
} else if (filter_row[2] | filter_row[5]) { \
const int num_taps = is_avg ? 8 : 4; \
while (w >= 16) { \
vpx_filter_block1d16_##dir##4_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
src += 16; \
dst += 16; \
w -= 16; \
} \
if (w == 8) { \
vpx_filter_block1d8_##dir##4_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
} else if (w == 4) { \
vpx_filter_block1d4_##dir##4_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
} \
(void)num_taps; \
} else { \
const int num_taps = 2; \
while (w >= 16) { \
vpx_filter_block1d16_##dir##2_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
src += 16; \
dst += 16; \
w -= 16; \
} \
if (w == 8) { \
vpx_filter_block1d8_##dir##2_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
} else if (w == 4) { \
vpx_filter_block1d4_##dir##2_##avg##opt(src_start, src_stride, dst, \
dst_stride, h, filter_row); \
} \
(void)num_taps; \
} \
}
#define FUN_CONV_2D(avg, opt, is_avg) \
void vpx_convolve8_##avg##opt( \
const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, \
ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, \
int x_step_q4, int y0_q4, int y_step_q4, int w, int h) { \
const int16_t *filter_x = filter[x0_q4]; \
const int16_t *filter_y = filter[y0_q4]; \
(void)filter_y; \
assert(filter_x[3] != 128); \
assert(filter_y[3] != 128); \
assert(w <= 64); \
assert(h <= 64); \
assert(x_step_q4 == 16); \
assert(y_step_q4 == 16); \
if (filter_x[0] | filter_x[1] | filter_x[6] | filter_x[7]) { \
DECLARE_ALIGNED(16, uint8_t, fdata2[64 * 71] VPX_UNINITIALIZED); \
vpx_convolve8_horiz_##opt(src - 3 * src_stride, src_stride, fdata2, 64, \
filter, x0_q4, x_step_q4, y0_q4, y_step_q4, w, \
h + 7); \
vpx_convolve8_##avg##vert_##opt(fdata2 + 3 * 64, 64, dst, dst_stride, \
filter, x0_q4, x_step_q4, y0_q4, \
y_step_q4, w, h); \
} else if (filter_x[2] | filter_x[5]) { \
const int num_taps = is_avg ? 8 : 4; \
DECLARE_ALIGNED(16, uint8_t, fdata2[64 * 71] VPX_UNINITIALIZED); \
vpx_convolve8_horiz_##opt( \
src - (num_taps / 2 - 1) * src_stride, src_stride, fdata2, 64, \
filter, x0_q4, x_step_q4, y0_q4, y_step_q4, w, h + num_taps - 1); \
vpx_convolve8_##avg##vert_##opt(fdata2 + 64 * (num_taps / 2 - 1), 64, \
dst, dst_stride, filter, x0_q4, \
x_step_q4, y0_q4, y_step_q4, w, h); \
} else { \
DECLARE_ALIGNED(16, uint8_t, fdata2[64 * 65] VPX_UNINITIALIZED); \
vpx_convolve8_horiz_##opt(src, src_stride, fdata2, 64, filter, x0_q4, \
x_step_q4, y0_q4, y_step_q4, w, h + 1); \
vpx_convolve8_##avg##vert_##opt(fdata2, 64, dst, dst_stride, filter, \
x0_q4, x_step_q4, y0_q4, y_step_q4, w, \
h); \
} \
}
#if CONFIG_VP9_HIGHBITDEPTH
typedef void highbd_filter8_1dfunction(const uint16_t *src_ptr,
const ptrdiff_t src_pitch,
uint16_t *output_ptr,
ptrdiff_t out_pitch,
unsigned int output_height,
const int16_t *filter, int bd);
#define HIGH_FUN_CONV_1D(name, offset, step_q4, dir, src_start, avg, opt, \
is_avg) \
void vpx_highbd_convolve8_##name##_##opt( \
const uint16_t *src, ptrdiff_t src_stride, uint16_t *dst, \
ptrdiff_t dst_stride, const InterpKernel *filter_kernel, int x0_q4, \
int x_step_q4, int y0_q4, int y_step_q4, int w, int h, int bd) { \
const int16_t *filter_row = filter_kernel[offset]; \
if (step_q4 == 16 && filter_row[3] != 128) { \
if (filter_row[0] | filter_row[1] | filter_row[6] | filter_row[7]) { \
const int num_taps = 8; \
while (w >= 16) { \
vpx_highbd_filter_block1d16_##dir##8_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 16; \
dst += 16; \
w -= 16; \
} \
while (w >= 8) { \
vpx_highbd_filter_block1d8_##dir##8_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 8; \
dst += 8; \
w -= 8; \
} \
while (w >= 4) { \
vpx_highbd_filter_block1d4_##dir##8_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 4; \
dst += 4; \
w -= 4; \
} \
(void)num_taps; \
} else if (filter_row[2] | filter_row[5]) { \
const int num_taps = is_avg ? 8 : 4; \
while (w >= 16) { \
vpx_highbd_filter_block1d16_##dir##4_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 16; \
dst += 16; \
w -= 16; \
} \
while (w >= 8) { \
vpx_highbd_filter_block1d8_##dir##4_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 8; \
dst += 8; \
w -= 8; \
} \
while (w >= 4) { \
vpx_highbd_filter_block1d4_##dir##4_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 4; \
dst += 4; \
w -= 4; \
} \
(void)num_taps; \
} else { \
const int num_taps = 2; \
while (w >= 16) { \
vpx_highbd_filter_block1d16_##dir##2_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 16; \
dst += 16; \
w -= 16; \
} \
while (w >= 8) { \
vpx_highbd_filter_block1d8_##dir##2_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 8; \
dst += 8; \
w -= 8; \
} \
while (w >= 4) { \
vpx_highbd_filter_block1d4_##dir##2_##avg##opt( \
src_start, src_stride, dst, dst_stride, h, filter_row, bd); \
src += 4; \
dst += 4; \
w -= 4; \
} \
(void)num_taps; \
} \
} \
if (w) { \
vpx_highbd_convolve8_##name##_c(src, src_stride, dst, dst_stride, \
filter_kernel, x0_q4, x_step_q4, y0_q4, \
y_step_q4, w, h, bd); \
} \
}
#define HIGH_FUN_CONV_2D(avg, opt, is_avg) \
void vpx_highbd_convolve8_##avg##opt( \
const uint16_t *src, ptrdiff_t src_stride, uint16_t *dst, \
ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, \
int x_step_q4, int y0_q4, int y_step_q4, int w, int h, int bd) { \
const int16_t *filter_x = filter[x0_q4]; \
assert(w <= 64); \
assert(h <= 64); \
if (x_step_q4 == 16 && y_step_q4 == 16) { \
if ((filter_x[0] | filter_x[1] | filter_x[6] | filter_x[7]) || \
filter_x[3] == 128) { \
DECLARE_ALIGNED(16, uint16_t, fdata2[64 * 71] VPX_UNINITIALIZED); \
vpx_highbd_convolve8_horiz_##opt(src - 3 * src_stride, src_stride, \
fdata2, 64, filter, x0_q4, x_step_q4, \
y0_q4, y_step_q4, w, h + 7, bd); \
vpx_highbd_convolve8_##avg##vert_##opt( \
fdata2 + 192, 64, dst, dst_stride, filter, x0_q4, x_step_q4, \
y0_q4, y_step_q4, w, h, bd); \
} else if (filter_x[2] | filter_x[5]) { \
const int num_taps = is_avg ? 8 : 4; \
DECLARE_ALIGNED(16, uint16_t, fdata2[64 * 71] VPX_UNINITIALIZED); \
vpx_highbd_convolve8_horiz_##opt( \
src - (num_taps / 2 - 1) * src_stride, src_stride, fdata2, 64, \
filter, x0_q4, x_step_q4, y0_q4, y_step_q4, w, h + num_taps - 1, \
bd); \
vpx_highbd_convolve8_##avg##vert_##opt( \
fdata2 + 64 * (num_taps / 2 - 1), 64, dst, dst_stride, filter, \
x0_q4, x_step_q4, y0_q4, y_step_q4, w, h, bd); \
} else { \
DECLARE_ALIGNED(16, uint16_t, fdata2[64 * 65] VPX_UNINITIALIZED); \
vpx_highbd_convolve8_horiz_##opt(src, src_stride, fdata2, 64, filter, \
x0_q4, x_step_q4, y0_q4, y_step_q4, \
w, h + 1, bd); \
vpx_highbd_convolve8_##avg##vert_##opt(fdata2, 64, dst, dst_stride, \
filter, x0_q4, x_step_q4, \
y0_q4, y_step_q4, w, h, bd); \
} \
} else { \
vpx_highbd_convolve8_##avg##c(src, src_stride, dst, dst_stride, filter, \
x0_q4, x_step_q4, y0_q4, y_step_q4, w, h, \
bd); \
} \
}
#endif // CONFIG_VP9_HIGHBITDEPTH
#endif // VPX_VPX_DSP_X86_CONVOLVE_H_