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authortrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
committertrav90 <travawine@palemoon.org>2018-10-15 21:45:30 -0500
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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
Diffstat (limited to 'third_party/aom/av1/common/convolve.c')
-rw-r--r--third_party/aom/av1/common/convolve.c775
1 files changed, 775 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/convolve.c b/third_party/aom/av1/common/convolve.c
new file mode 100644
index 000000000..eab6fe7a3
--- /dev/null
+++ b/third_party/aom/av1/common/convolve.c
@@ -0,0 +1,775 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <string.h>
+
+#include "./aom_dsp_rtcd.h"
+#include "./av1_rtcd.h"
+#include "av1/common/convolve.h"
+#include "av1/common/filter.h"
+#include "av1/common/onyxc_int.h"
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_ports/mem.h"
+
+#define MAX_BLOCK_WIDTH (MAX_SB_SIZE)
+#define MAX_BLOCK_HEIGHT (MAX_SB_SIZE)
+#define MAX_STEP (32)
+
+void av1_convolve_horiz_c(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_x_q4, int x_step_q4,
+ ConvolveParams *conv_params) {
+ int x, y;
+ int filter_size = filter_params.taps;
+ assert(conv_params->round == CONVOLVE_OPT_ROUND);
+ src -= filter_size / 2 - 1;
+ for (y = 0; y < h; ++y) {
+ int x_q4 = subpel_x_q4;
+ for (x = 0; x < w; ++x) {
+ const uint8_t *const src_x = &src[x_q4 >> SUBPEL_BITS];
+ const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
+ filter_params, x_q4 & SUBPEL_MASK);
+ int k, sum = 0;
+ for (k = 0; k < filter_size; ++k) sum += src_x[k] * x_filter[k];
+
+ sum = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS));
+ if (conv_params->ref)
+ dst[x] = ROUND_POWER_OF_TWO(dst[x] + sum, 1);
+ else
+ dst[x] = sum;
+
+ x_q4 += x_step_q4;
+ }
+ src += src_stride;
+ dst += dst_stride;
+ }
+}
+
+void av1_convolve_vert_c(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_y_q4, int y_step_q4,
+ ConvolveParams *conv_params) {
+ int x, y;
+ int filter_size = filter_params.taps;
+ assert(conv_params->round == CONVOLVE_OPT_ROUND);
+ src -= src_stride * (filter_size / 2 - 1);
+ for (x = 0; x < w; ++x) {
+ int y_q4 = subpel_y_q4;
+ for (y = 0; y < h; ++y) {
+ const uint8_t *const src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride];
+ const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
+ filter_params, y_q4 & SUBPEL_MASK);
+ int k, sum = 0;
+ for (k = 0; k < filter_size; ++k)
+ sum += src_y[k * src_stride] * y_filter[k];
+
+ sum = clip_pixel(ROUND_POWER_OF_TWO(sum, FILTER_BITS));
+ if (conv_params->ref)
+ dst[y * dst_stride] = ROUND_POWER_OF_TWO(dst[y * dst_stride] + sum, 1);
+ else
+ dst[y * dst_stride] = sum;
+
+ y_q4 += y_step_q4;
+ }
+ ++src;
+ ++dst;
+ }
+}
+
+static void convolve_copy(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ ConvolveParams *conv_params) {
+ assert(conv_params->round == CONVOLVE_OPT_ROUND);
+ if (conv_params->ref == 0) {
+ int r;
+ for (r = 0; r < h; ++r) {
+ memcpy(dst, src, w);
+ src += src_stride;
+ dst += dst_stride;
+ }
+ } else {
+ int r, c;
+ for (r = 0; r < h; ++r) {
+ for (c = 0; c < w; ++c) {
+ dst[c] = clip_pixel(ROUND_POWER_OF_TWO(dst[c] + src[c], 1));
+ }
+ src += src_stride;
+ dst += dst_stride;
+ }
+ }
+}
+
+void av1_convolve_horiz_facade(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_x_q4, int x_step_q4,
+ ConvolveParams *conv_params) {
+ assert(conv_params->round == CONVOLVE_OPT_ROUND);
+ if (filter_params.taps == SUBPEL_TAPS) {
+ const int16_t *filter_x =
+ av1_get_interp_filter_subpel_kernel(filter_params, subpel_x_q4);
+ if (conv_params->ref == 0)
+ aom_convolve8_horiz(src, src_stride, dst, dst_stride, filter_x, x_step_q4,
+ NULL, -1, w, h);
+ else
+ aom_convolve8_avg_horiz(src, src_stride, dst, dst_stride, filter_x,
+ x_step_q4, NULL, -1, w, h);
+ } else {
+ av1_convolve_horiz(src, src_stride, dst, dst_stride, w, h, filter_params,
+ subpel_x_q4, x_step_q4, conv_params);
+ }
+}
+
+void av1_convolve_horiz_facade_c(const uint8_t *src, int src_stride,
+ uint8_t *dst, int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_x_q4, int x_step_q4,
+ ConvolveParams *conv_params) {
+ assert(conv_params->round == CONVOLVE_OPT_ROUND);
+ if (filter_params.taps == SUBPEL_TAPS) {
+ const int16_t *filter_x =
+ av1_get_interp_filter_subpel_kernel(filter_params, subpel_x_q4);
+ if (conv_params->ref == 0)
+ aom_convolve8_horiz_c(src, src_stride, dst, dst_stride, filter_x,
+ x_step_q4, NULL, -1, w, h);
+ else
+ aom_convolve8_avg_horiz_c(src, src_stride, dst, dst_stride, filter_x,
+ x_step_q4, NULL, -1, w, h);
+ } else {
+ av1_convolve_horiz_c(src, src_stride, dst, dst_stride, w, h, filter_params,
+ subpel_x_q4, x_step_q4, conv_params);
+ }
+}
+
+void av1_convolve_vert_facade(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_y_q4, int y_step_q4,
+ ConvolveParams *conv_params) {
+ assert(conv_params->round == CONVOLVE_OPT_ROUND);
+ if (filter_params.taps == SUBPEL_TAPS) {
+ const int16_t *filter_y =
+ av1_get_interp_filter_subpel_kernel(filter_params, subpel_y_q4);
+ if (conv_params->ref == 0) {
+ aom_convolve8_vert(src, src_stride, dst, dst_stride, NULL, -1, filter_y,
+ y_step_q4, w, h);
+ } else {
+ aom_convolve8_avg_vert(src, src_stride, dst, dst_stride, NULL, -1,
+ filter_y, y_step_q4, w, h);
+ }
+ } else {
+ av1_convolve_vert(src, src_stride, dst, dst_stride, w, h, filter_params,
+ subpel_y_q4, y_step_q4, conv_params);
+ }
+}
+
+void av1_convolve_vert_facade_c(const uint8_t *src, int src_stride,
+ uint8_t *dst, int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_y_q4, int y_step_q4,
+ ConvolveParams *conv_params) {
+ assert(conv_params->round == CONVOLVE_OPT_ROUND);
+ if (filter_params.taps == SUBPEL_TAPS) {
+ const int16_t *filter_y =
+ av1_get_interp_filter_subpel_kernel(filter_params, subpel_y_q4);
+ if (conv_params->ref == 0) {
+ aom_convolve8_vert_c(src, src_stride, dst, dst_stride, NULL, -1, filter_y,
+ y_step_q4, w, h);
+ } else {
+ aom_convolve8_avg_vert_c(src, src_stride, dst, dst_stride, NULL, -1,
+ filter_y, y_step_q4, w, h);
+ }
+ } else {
+ av1_convolve_vert_c(src, src_stride, dst, dst_stride, w, h, filter_params,
+ subpel_y_q4, y_step_q4, conv_params);
+ }
+}
+
+#if CONFIG_CONVOLVE_ROUND
+void av1_convolve_rounding(const int32_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h, int bits) {
+ int r, c;
+ for (r = 0; r < h; ++r) {
+ for (c = 0; c < w; ++c) {
+ dst[r * dst_stride + c] =
+ clip_pixel(ROUND_POWER_OF_TWO_SIGNED(src[r * src_stride + c], bits));
+ }
+ }
+}
+
+void av1_convolve_2d(const uint8_t *src, int src_stride, CONV_BUF_TYPE *dst,
+ int dst_stride, int w, int h,
+ InterpFilterParams *filter_params_x,
+ InterpFilterParams *filter_params_y, const int subpel_x_q4,
+ const int subpel_y_q4, ConvolveParams *conv_params) {
+ int x, y, k;
+ CONV_BUF_TYPE im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE];
+ int im_h = h + filter_params_y->taps - 1;
+ int im_stride = w;
+ const int fo_vert = filter_params_y->taps / 2 - 1;
+ const int fo_horiz = filter_params_x->taps / 2 - 1;
+ (void)conv_params;
+ // horizontal filter
+ const uint8_t *src_horiz = src - fo_vert * src_stride;
+ const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
+ *filter_params_x, subpel_x_q4 & SUBPEL_MASK);
+ for (y = 0; y < im_h; ++y) {
+ for (x = 0; x < w; ++x) {
+ CONV_BUF_TYPE sum = 0;
+ for (k = 0; k < filter_params_x->taps; ++k) {
+ sum += x_filter[k] * src_horiz[y * src_stride + x - fo_horiz + k];
+ }
+#if CONFIG_COMPOUND_ROUND
+ im_block[y * im_stride + x] =
+ clip_pixel(ROUND_POWER_OF_TWO_SIGNED(sum, conv_params->round_0));
+#else
+ im_block[y * im_stride + x] =
+ ROUND_POWER_OF_TWO_SIGNED(sum, conv_params->round_0);
+#endif
+ }
+ }
+
+ // vertical filter
+ CONV_BUF_TYPE *src_vert = im_block + fo_vert * im_stride;
+ const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
+ *filter_params_y, subpel_y_q4 & SUBPEL_MASK);
+ for (y = 0; y < h; ++y) {
+ for (x = 0; x < w; ++x) {
+ CONV_BUF_TYPE sum = 0;
+ for (k = 0; k < filter_params_y->taps; ++k) {
+ sum += y_filter[k] * src_vert[(y - fo_vert + k) * im_stride + x];
+ }
+ dst[y * dst_stride + x] +=
+ ROUND_POWER_OF_TWO_SIGNED(sum, conv_params->round_1);
+ }
+ }
+}
+
+static INLINE void transpose_uint8(uint8_t *dst, int dst_stride,
+ const uint8_t *src, int src_stride, int w,
+ int h) {
+ int r, c;
+ for (r = 0; r < h; ++r)
+ for (c = 0; c < w; ++c)
+ dst[c * (dst_stride) + r] = src[r * (src_stride) + c];
+}
+
+static INLINE void transpose_int32(int32_t *dst, int dst_stride,
+ const int32_t *src, int src_stride, int w,
+ int h) {
+ int r, c;
+ for (r = 0; r < h; ++r)
+ for (c = 0; c < w; ++c)
+ dst[c * (dst_stride) + r] = src[r * (src_stride) + c];
+}
+
+void av1_convolve_2d_facade(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilter *interp_filter,
+ const int subpel_x_q4, int x_step_q4,
+ const int subpel_y_q4, int y_step_q4,
+ ConvolveParams *conv_params) {
+ (void)x_step_q4;
+ (void)y_step_q4;
+ (void)dst;
+ (void)dst_stride;
+#if CONFIG_DUAL_FILTER
+ InterpFilterParams filter_params_x =
+ av1_get_interp_filter_params(interp_filter[1 + 2 * conv_params->ref]);
+ InterpFilterParams filter_params_y =
+ av1_get_interp_filter_params(interp_filter[0 + 2 * conv_params->ref]);
+
+ if (filter_params_x.interp_filter == MULTITAP_SHARP &&
+ filter_params_y.interp_filter == MULTITAP_SHARP) {
+ // Avoid two directions both using 12-tap filter.
+ // This will reduce hardware implementation cost.
+ filter_params_y = av1_get_interp_filter_params(EIGHTTAP_SHARP);
+ }
+#else
+ InterpFilterParams filter_params_x =
+ av1_get_interp_filter_params(*interp_filter);
+ InterpFilterParams filter_params_y =
+ av1_get_interp_filter_params(*interp_filter);
+#endif
+
+ if (filter_params_y.taps < filter_params_x.taps) {
+ uint8_t tr_src[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) *
+ (MAX_SB_SIZE + MAX_FILTER_TAP - 1)];
+ int tr_src_stride = MAX_SB_SIZE + MAX_FILTER_TAP - 1;
+ CONV_BUF_TYPE tr_dst[MAX_SB_SIZE * MAX_SB_SIZE];
+ int tr_dst_stride = MAX_SB_SIZE;
+ int fo_vert = filter_params_y.taps / 2 - 1;
+ int fo_horiz = filter_params_x.taps / 2 - 1;
+
+ transpose_uint8(tr_src, tr_src_stride,
+ src - fo_vert * src_stride - fo_horiz, src_stride,
+ w + filter_params_x.taps - 1, h + filter_params_y.taps - 1);
+ transpose_int32(tr_dst, tr_dst_stride, conv_params->dst,
+ conv_params->dst_stride, w, h);
+
+ // horizontal and vertical parameters are swapped because of the transpose
+ av1_convolve_2d(tr_src + fo_horiz * tr_src_stride + fo_vert, tr_src_stride,
+ tr_dst, tr_dst_stride, h, w, &filter_params_y,
+ &filter_params_x, subpel_y_q4, subpel_x_q4, conv_params);
+ transpose_int32(conv_params->dst, conv_params->dst_stride, tr_dst,
+ tr_dst_stride, h, w);
+ } else {
+ av1_convolve_2d(src, src_stride, conv_params->dst, conv_params->dst_stride,
+ w, h, &filter_params_x, &filter_params_y, subpel_x_q4,
+ subpel_y_q4, conv_params);
+ }
+}
+
+#endif // CONFIG_CONVOLVE_ROUND
+
+typedef void (*ConvolveFunc)(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_q4, int step_q4,
+ ConvolveParams *conv_params);
+
+static void convolve_helper(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+#if CONFIG_DUAL_FILTER
+ const InterpFilter *interp_filter,
+#else
+ const InterpFilter interp_filter,
+#endif
+ const int subpel_x_q4, int x_step_q4,
+ const int subpel_y_q4, int y_step_q4,
+ ConvolveParams *conv_params,
+ ConvolveFunc convolve_horiz,
+ ConvolveFunc convolve_vert) {
+ int ignore_horiz = x_step_q4 == 16 && subpel_x_q4 == 0;
+ int ignore_vert = y_step_q4 == 16 && subpel_y_q4 == 0;
+#if CONFIG_DUAL_FILTER
+ InterpFilterParams filter_params_x =
+ av1_get_interp_filter_params(interp_filter[1 + 2 * conv_params->ref]);
+ InterpFilterParams filter_params_y =
+ av1_get_interp_filter_params(interp_filter[0 + 2 * conv_params->ref]);
+ InterpFilterParams filter_params;
+#else
+ InterpFilterParams filter_params =
+ av1_get_interp_filter_params(interp_filter);
+#endif
+ assert(conv_params->round == CONVOLVE_OPT_ROUND);
+
+ assert(w <= MAX_BLOCK_WIDTH);
+ assert(h <= MAX_BLOCK_HEIGHT);
+ assert(y_step_q4 <= MAX_STEP);
+ assert(x_step_q4 <= MAX_STEP);
+
+ if (ignore_horiz && ignore_vert) {
+ convolve_copy(src, src_stride, dst, dst_stride, w, h, conv_params);
+ } else if (ignore_vert) {
+#if CONFIG_DUAL_FILTER
+ filter_params = filter_params_x;
+#endif
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+ convolve_horiz(src, src_stride, dst, dst_stride, w, h, filter_params,
+ subpel_x_q4, x_step_q4, conv_params);
+ } else if (ignore_horiz) {
+#if CONFIG_DUAL_FILTER
+ filter_params = filter_params_y;
+#endif
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+ convolve_vert(src, src_stride, dst, dst_stride, w, h, filter_params,
+ subpel_y_q4, y_step_q4, conv_params);
+ } else {
+ // temp's size is set to a 256 aligned value to facilitate SIMD
+ // implementation. The value is greater than (maximum possible intermediate
+ // height or width) * MAX_SB_SIZE
+ DECLARE_ALIGNED(16, uint8_t,
+ temp[((MAX_SB_SIZE * 2 + 16) + 16) * MAX_SB_SIZE]);
+ int max_intermediate_size = ((MAX_SB_SIZE * 2 + 16) + 16);
+ int filter_size;
+#if CONFIG_DUAL_FILTER
+ if (interp_filter[0 + 2 * conv_params->ref] == MULTITAP_SHARP &&
+ interp_filter[1 + 2 * conv_params->ref] == MULTITAP_SHARP) {
+ // Avoid two directions both using 12-tap filter.
+ // This will reduce hardware implementation cost.
+ filter_params_y = av1_get_interp_filter_params(EIGHTTAP_SHARP);
+ }
+
+ // we do filter with fewer taps first to reduce hardware implementation
+ // complexity
+ if (filter_params_y.taps < filter_params_x.taps) {
+ int intermediate_width;
+ int temp_stride = max_intermediate_size;
+ ConvolveParams temp_conv_params;
+ temp_conv_params.ref = 0;
+ temp_conv_params.round = CONVOLVE_OPT_ROUND;
+ filter_params = filter_params_y;
+ filter_size = filter_params_x.taps;
+ intermediate_width =
+ (((w - 1) * x_step_q4 + subpel_x_q4) >> SUBPEL_BITS) + filter_size;
+ assert(intermediate_width <= max_intermediate_size);
+
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+
+ convolve_vert(src - (filter_size / 2 - 1), src_stride, temp, temp_stride,
+ intermediate_width, h, filter_params, subpel_y_q4,
+ y_step_q4, &temp_conv_params);
+
+ filter_params = filter_params_x;
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+ convolve_horiz(temp + (filter_size / 2 - 1), temp_stride, dst, dst_stride,
+ w, h, filter_params, subpel_x_q4, x_step_q4, conv_params);
+ } else
+#endif // CONFIG_DUAL_FILTER
+ {
+ int intermediate_height;
+ int temp_stride = MAX_SB_SIZE;
+ ConvolveParams temp_conv_params;
+ temp_conv_params.ref = 0;
+ temp_conv_params.round = CONVOLVE_OPT_ROUND;
+#if CONFIG_DUAL_FILTER
+ filter_params = filter_params_x;
+ filter_size = filter_params_y.taps;
+#else
+ filter_size = filter_params.taps;
+#endif
+ intermediate_height =
+ (((h - 1) * y_step_q4 + subpel_y_q4) >> SUBPEL_BITS) + filter_size;
+ assert(intermediate_height <= max_intermediate_size);
+ (void)max_intermediate_size;
+
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+
+ convolve_horiz(src - src_stride * (filter_size / 2 - 1), src_stride, temp,
+ temp_stride, w, intermediate_height, filter_params,
+ subpel_x_q4, x_step_q4, &temp_conv_params);
+
+#if CONFIG_DUAL_FILTER
+ filter_params = filter_params_y;
+#endif
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+
+ convolve_vert(temp + temp_stride * (filter_size / 2 - 1), temp_stride,
+ dst, dst_stride, w, h, filter_params, subpel_y_q4,
+ y_step_q4, conv_params);
+ }
+ }
+}
+
+void av1_convolve(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+#if CONFIG_DUAL_FILTER
+ const InterpFilter *interp_filter,
+#else
+ const InterpFilter interp_filter,
+#endif
+ const int subpel_x_q4, int x_step_q4, const int subpel_y_q4,
+ int y_step_q4, ConvolveParams *conv_params) {
+ convolve_helper(src, src_stride, dst, dst_stride, w, h, interp_filter,
+ subpel_x_q4, x_step_q4, subpel_y_q4, y_step_q4, conv_params,
+ av1_convolve_horiz_facade, av1_convolve_vert_facade);
+}
+
+void av1_convolve_c(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+#if CONFIG_DUAL_FILTER
+ const InterpFilter *interp_filter,
+#else
+ const InterpFilter interp_filter,
+#endif
+ const int subpel_x_q4, int x_step_q4, const int subpel_y_q4,
+ int y_step_q4, ConvolveParams *conv_params) {
+ convolve_helper(src, src_stride, dst, dst_stride, w, h, interp_filter,
+ subpel_x_q4, x_step_q4, subpel_y_q4, y_step_q4, conv_params,
+ av1_convolve_horiz_facade_c, av1_convolve_vert_facade_c);
+}
+
+void av1_lowbd_convolve_init_c(void) {
+ // A placeholder for SIMD initialization
+ return;
+}
+
+void av1_highbd_convolve_init_c(void) {
+ // A placeholder for SIMD initialization
+ return;
+}
+
+void av1_convolve_init(AV1_COMMON *cm) {
+#if CONFIG_HIGHBITDEPTH
+ if (cm->use_highbitdepth)
+ av1_highbd_convolve_init();
+ else
+ av1_lowbd_convolve_init();
+#else
+ (void)cm;
+ av1_lowbd_convolve_init();
+#endif
+ return;
+}
+
+#if CONFIG_HIGHBITDEPTH
+void av1_highbd_convolve_horiz_c(const uint16_t *src, int src_stride,
+ uint16_t *dst, int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_x_q4, int x_step_q4, int avg,
+ int bd) {
+ int x, y;
+ int filter_size = filter_params.taps;
+ src -= filter_size / 2 - 1;
+ for (y = 0; y < h; ++y) {
+ int x_q4 = subpel_x_q4;
+ for (x = 0; x < w; ++x) {
+ const uint16_t *const src_x = &src[x_q4 >> SUBPEL_BITS];
+ const int16_t *x_filter = av1_get_interp_filter_subpel_kernel(
+ filter_params, x_q4 & SUBPEL_MASK);
+ int k, sum = 0;
+ for (k = 0; k < filter_size; ++k) sum += src_x[k] * x_filter[k];
+ if (avg)
+ dst[x] = ROUND_POWER_OF_TWO(
+ dst[x] +
+ clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd),
+ 1);
+ else
+ dst[x] = clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd);
+ x_q4 += x_step_q4;
+ }
+ src += src_stride;
+ dst += dst_stride;
+ }
+}
+
+void av1_highbd_convolve_vert_c(const uint16_t *src, int src_stride,
+ uint16_t *dst, int dst_stride, int w, int h,
+ const InterpFilterParams filter_params,
+ const int subpel_y_q4, int y_step_q4, int avg,
+ int bd) {
+ int x, y;
+ int filter_size = filter_params.taps;
+ src -= src_stride * (filter_size / 2 - 1);
+
+ for (x = 0; x < w; ++x) {
+ int y_q4 = subpel_y_q4;
+ for (y = 0; y < h; ++y) {
+ const uint16_t *const src_y = &src[(y_q4 >> SUBPEL_BITS) * src_stride];
+ const int16_t *y_filter = av1_get_interp_filter_subpel_kernel(
+ filter_params, y_q4 & SUBPEL_MASK);
+ int k, sum = 0;
+ for (k = 0; k < filter_size; ++k)
+ sum += src_y[k * src_stride] * y_filter[k];
+ if (avg) {
+ dst[y * dst_stride] = ROUND_POWER_OF_TWO(
+ dst[y * dst_stride] +
+ clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd),
+ 1);
+ } else {
+ dst[y * dst_stride] =
+ clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd);
+ }
+ y_q4 += y_step_q4;
+ }
+ ++src;
+ ++dst;
+ }
+}
+
+static void highbd_convolve_copy(const uint16_t *src, int src_stride,
+ uint16_t *dst, int dst_stride, int w, int h,
+ int avg, int bd) {
+ if (avg == 0) {
+ int r;
+ for (r = 0; r < h; ++r) {
+ memcpy(dst, src, w * sizeof(*src));
+ src += src_stride;
+ dst += dst_stride;
+ }
+ } else {
+ int r, c;
+ for (r = 0; r < h; ++r) {
+ for (c = 0; c < w; ++c) {
+ dst[c] = clip_pixel_highbd(ROUND_POWER_OF_TWO(dst[c] + src[c], 1), bd);
+ }
+ src += src_stride;
+ dst += dst_stride;
+ }
+ }
+}
+
+void av1_highbd_convolve_horiz_facade(const uint8_t *src8, int src_stride,
+ uint8_t *dst8, int dst_stride, int w,
+ int h,
+ const InterpFilterParams filter_params,
+ const int subpel_x_q4, int x_step_q4,
+ int avg, int bd) {
+ uint16_t *src = CONVERT_TO_SHORTPTR(src8);
+ uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
+ if (filter_params.taps == SUBPEL_TAPS) {
+ const int16_t *filter_x =
+ av1_get_interp_filter_subpel_kernel(filter_params, subpel_x_q4);
+ if (avg == 0)
+ aom_highbd_convolve8_horiz(src8, src_stride, dst8, dst_stride, filter_x,
+ x_step_q4, NULL, -1, w, h, bd);
+ else
+ aom_highbd_convolve8_avg_horiz(src8, src_stride, dst8, dst_stride,
+ filter_x, x_step_q4, NULL, -1, w, h, bd);
+ } else {
+ av1_highbd_convolve_horiz(src, src_stride, dst, dst_stride, w, h,
+ filter_params, subpel_x_q4, x_step_q4, avg, bd);
+ }
+}
+
+void av1_highbd_convolve_vert_facade(const uint8_t *src8, int src_stride,
+ uint8_t *dst8, int dst_stride, int w,
+ int h,
+ const InterpFilterParams filter_params,
+ const int subpel_y_q4, int y_step_q4,
+ int avg, int bd) {
+ uint16_t *src = CONVERT_TO_SHORTPTR(src8);
+ uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
+
+ if (filter_params.taps == SUBPEL_TAPS) {
+ const int16_t *filter_y =
+ av1_get_interp_filter_subpel_kernel(filter_params, subpel_y_q4);
+ if (avg == 0) {
+ aom_highbd_convolve8_vert(src8, src_stride, dst8, dst_stride, NULL, -1,
+ filter_y, y_step_q4, w, h, bd);
+ } else {
+ aom_highbd_convolve8_avg_vert(src8, src_stride, dst8, dst_stride, NULL,
+ -1, filter_y, y_step_q4, w, h, bd);
+ }
+ } else {
+ av1_highbd_convolve_vert(src, src_stride, dst, dst_stride, w, h,
+ filter_params, subpel_y_q4, y_step_q4, avg, bd);
+ }
+}
+
+void av1_highbd_convolve(const uint8_t *src8, int src_stride, uint8_t *dst8,
+ int dst_stride, int w, int h,
+#if CONFIG_DUAL_FILTER
+ const InterpFilter *interp_filter,
+#else
+ const InterpFilter interp_filter,
+#endif
+ const int subpel_x_q4, int x_step_q4,
+ const int subpel_y_q4, int y_step_q4, int ref_idx,
+ int bd) {
+ uint16_t *src = CONVERT_TO_SHORTPTR(src8);
+ uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
+ int ignore_horiz = x_step_q4 == 16 && subpel_x_q4 == 0;
+ int ignore_vert = y_step_q4 == 16 && subpel_y_q4 == 0;
+
+ assert(w <= MAX_BLOCK_WIDTH);
+ assert(h <= MAX_BLOCK_HEIGHT);
+ assert(y_step_q4 <= MAX_STEP);
+ assert(x_step_q4 <= MAX_STEP);
+
+ if (ignore_horiz && ignore_vert) {
+ highbd_convolve_copy(src, src_stride, dst, dst_stride, w, h, ref_idx, bd);
+ } else if (ignore_vert) {
+#if CONFIG_DUAL_FILTER
+ InterpFilterParams filter_params =
+ av1_get_interp_filter_params(interp_filter[1 + 2 * ref_idx]);
+#else
+ InterpFilterParams filter_params =
+ av1_get_interp_filter_params(interp_filter);
+#endif
+ av1_highbd_convolve_horiz_facade(src8, src_stride, dst8, dst_stride, w, h,
+ filter_params, subpel_x_q4, x_step_q4,
+ ref_idx, bd);
+ } else if (ignore_horiz) {
+#if CONFIG_DUAL_FILTER
+ InterpFilterParams filter_params =
+ av1_get_interp_filter_params(interp_filter[0 + 2 * ref_idx]);
+#else
+ InterpFilterParams filter_params =
+ av1_get_interp_filter_params(interp_filter);
+#endif
+ av1_highbd_convolve_vert_facade(src8, src_stride, dst8, dst_stride, w, h,
+ filter_params, subpel_y_q4, y_step_q4,
+ ref_idx, bd);
+ } else {
+ // temp's size is set to a 256 aligned value to facilitate SIMD
+ // implementation. The value is greater than (maximum possible intermediate
+ // height or width) * MAX_SB_SIZE
+ DECLARE_ALIGNED(16, uint16_t,
+ temp[((MAX_SB_SIZE * 2 + 16) + 16) * MAX_SB_SIZE]);
+ uint8_t *temp8 = CONVERT_TO_BYTEPTR(temp);
+ int max_intermediate_size = ((MAX_SB_SIZE * 2 + 16) + 16);
+ int filter_size;
+ InterpFilterParams filter_params;
+#if CONFIG_DUAL_FILTER
+ InterpFilterParams filter_params_x =
+ av1_get_interp_filter_params(interp_filter[1 + 2 * ref_idx]);
+ InterpFilterParams filter_params_y =
+ av1_get_interp_filter_params(interp_filter[0 + 2 * ref_idx]);
+ if (interp_filter[0 + 2 * ref_idx] == MULTITAP_SHARP &&
+ interp_filter[1 + 2 * ref_idx] == MULTITAP_SHARP) {
+ // Avoid two directions both using 12-tap filter.
+ // This will reduce hardware implementation cost.
+ filter_params_y = av1_get_interp_filter_params(EIGHTTAP_SHARP);
+ }
+#endif
+
+#if CONFIG_DUAL_FILTER
+ if (filter_params_y.taps < filter_params_x.taps) {
+ int intermediate_width;
+ int temp_stride = max_intermediate_size;
+ filter_params = filter_params_y;
+ filter_size = filter_params_x.taps;
+ intermediate_width =
+ (((w - 1) * x_step_q4 + subpel_x_q4) >> SUBPEL_BITS) + filter_size;
+ assert(intermediate_width <= max_intermediate_size);
+
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+
+ av1_highbd_convolve_vert_facade(
+ src8 - (filter_size / 2 - 1), src_stride, temp8, temp_stride,
+ intermediate_width, h, filter_params, subpel_y_q4, y_step_q4, 0, bd);
+
+ filter_params = filter_params_x;
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+
+ av1_highbd_convolve_horiz_facade(
+ temp8 + (filter_size / 2 - 1), temp_stride, dst8, dst_stride, w, h,
+ filter_params, subpel_x_q4, x_step_q4, ref_idx, bd);
+ } else
+#endif // CONFIG_DUAL_FILTER
+ {
+ int intermediate_height;
+ int temp_stride = MAX_SB_SIZE;
+#if CONFIG_DUAL_FILTER
+ filter_params = filter_params_x;
+ filter_size = filter_params_y.taps;
+#else
+ filter_params = av1_get_interp_filter_params(interp_filter);
+ filter_size = filter_params.taps;
+#endif
+ intermediate_height =
+ (((h - 1) * y_step_q4 + subpel_y_q4) >> SUBPEL_BITS) + filter_size;
+ assert(intermediate_height <= max_intermediate_size);
+ (void)max_intermediate_size;
+
+ av1_highbd_convolve_horiz_facade(
+ src8 - src_stride * (filter_size / 2 - 1), src_stride, temp8,
+ temp_stride, w, intermediate_height, filter_params, subpel_x_q4,
+ x_step_q4, 0, bd);
+
+#if CONFIG_DUAL_FILTER
+ filter_params = filter_params_y;
+#endif
+ filter_size = filter_params.taps;
+ assert(filter_params.taps <= MAX_FILTER_TAP);
+
+ av1_highbd_convolve_vert_facade(
+ temp8 + temp_stride * (filter_size / 2 - 1), temp_stride, dst8,
+ dst_stride, w, h, filter_params, subpel_y_q4, y_step_q4, ref_idx, bd);
+ }
+ }
+}
+#endif // CONFIG_HIGHBITDEPTH