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Diffstat (limited to 'third_party/aom/av1/common/convolve.c')
| -rw-r--r-- | third_party/aom/av1/common/convolve.c | 775 |
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 |