static void down2_symeven(const uint8_t *const input, int length,
uint8_t *output) {
// Actual filter len = 2 * filter_len_half.
- static const int16_t *filter = vp9_down2_symeven_half_filter;
+ const int16_t *filter = vp9_down2_symeven_half_filter;
const int filter_len_half = sizeof(vp9_down2_symeven_half_filter) / 2;
int i, j;
uint8_t *optr = output;
static void down2_symodd(const uint8_t *const input, int length,
uint8_t *output) {
// Actual filter len = 2 * filter_len_half - 1.
- static const int16_t *filter = vp9_down2_symodd_half_filter;
+ const int16_t *filter = vp9_down2_symodd_half_filter;
const int filter_len_half = sizeof(vp9_down2_symodd_half_filter) / 2;
int i, j;
uint8_t *optr = output;
free(arrbuf);
}
+#if CONFIG_VP9_HIGHBITDEPTH
+static void highbd_interpolate(const uint16_t *const input, int inlength,
+ uint16_t *output, int outlength, int bd) {
+ const int64_t delta =
+ (((uint64_t)inlength << 32) + outlength / 2) / outlength;
+ const int64_t offset = inlength > outlength ?
+ (((int64_t)(inlength - outlength) << 31) + outlength / 2) / outlength :
+ -(((int64_t)(outlength - inlength) << 31) + outlength / 2) / outlength;
+ uint16_t *optr = output;
+ int x, x1, x2, sum, k, int_pel, sub_pel;
+ int64_t y;
+
+ const interp_kernel *interp_filters =
+ choose_interp_filter(inlength, outlength);
+
+ x = 0;
+ y = offset;
+ while ((y >> INTERP_PRECISION_BITS) < (INTERP_TAPS / 2 - 1)) {
+ x++;
+ y += delta;
+ }
+ x1 = x;
+ x = outlength - 1;
+ y = delta * x + offset;
+ while ((y >> INTERP_PRECISION_BITS) +
+ (int64_t)(INTERP_TAPS / 2) >= inlength) {
+ x--;
+ y -= delta;
+ }
+ x2 = x;
+ if (x1 > x2) {
+ for (x = 0, y = offset; x < outlength; ++x, y += delta) {
+ const int16_t *filter;
+ int_pel = y >> INTERP_PRECISION_BITS;
+ sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK;
+ filter = interp_filters[sub_pel];
+ sum = 0;
+ for (k = 0; k < INTERP_TAPS; ++k) {
+ const int pk = int_pel - INTERP_TAPS / 2 + 1 + k;
+ sum += filter[k] *
+ input[(pk < 0 ? 0 : (pk >= inlength ? inlength - 1 : pk))];
+ }
+ *optr++ = clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd);
+ }
+ } else {
+ // Initial part.
+ for (x = 0, y = offset; x < x1; ++x, y += delta) {
+ const int16_t *filter;
+ int_pel = y >> INTERP_PRECISION_BITS;
+ sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK;
+ filter = interp_filters[sub_pel];
+ sum = 0;
+ for (k = 0; k < INTERP_TAPS; ++k)
+ sum += filter[k] *
+ input[(int_pel - INTERP_TAPS / 2 + 1 + k < 0 ?
+ 0 : int_pel - INTERP_TAPS / 2 + 1 + k)];
+ *optr++ = clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd);
+ }
+ // Middle part.
+ for (; x <= x2; ++x, y += delta) {
+ const int16_t *filter;
+ int_pel = y >> INTERP_PRECISION_BITS;
+ sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK;
+ filter = interp_filters[sub_pel];
+ sum = 0;
+ for (k = 0; k < INTERP_TAPS; ++k)
+ sum += filter[k] * input[int_pel - INTERP_TAPS / 2 + 1 + k];
+ *optr++ = clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd);
+ }
+ // End part.
+ for (; x < outlength; ++x, y += delta) {
+ const int16_t *filter;
+ int_pel = y >> INTERP_PRECISION_BITS;
+ sub_pel = (y >> (INTERP_PRECISION_BITS - SUBPEL_BITS)) & SUBPEL_MASK;
+ filter = interp_filters[sub_pel];
+ sum = 0;
+ for (k = 0; k < INTERP_TAPS; ++k)
+ sum += filter[k] * input[(int_pel - INTERP_TAPS / 2 + 1 + k >=
+ inlength ? inlength - 1 :
+ int_pel - INTERP_TAPS / 2 + 1 + k)];
+ *optr++ = clip_pixel_highbd(ROUND_POWER_OF_TWO(sum, FILTER_BITS), bd);
+ }
+ }
+}
+
+static void highbd_down2_symeven(const uint16_t *const input, int length,
+ uint16_t *output, int bd) {
+ // Actual filter len = 2 * filter_len_half.
+ static const int16_t *filter = vp9_down2_symeven_half_filter;
+ const int filter_len_half = sizeof(vp9_down2_symeven_half_filter) / 2;
+ int i, j;
+ uint16_t *optr = output;
+ int l1 = filter_len_half;
+ int l2 = (length - filter_len_half);
+ l1 += (l1 & 1);
+ l2 += (l2 & 1);
+ if (l1 > l2) {
+ // Short input length.
+ for (i = 0; i < length; i += 2) {
+ int sum = (1 << (FILTER_BITS - 1));
+ for (j = 0; j < filter_len_half; ++j) {
+ sum += (input[(i - j < 0 ? 0 : i - j)] +
+ input[(i + 1 + j >= length ? length - 1 : i + 1 + j)]) *
+ filter[j];
+ }
+ sum >>= FILTER_BITS;
+ *optr++ = clip_pixel_highbd(sum, bd);
+ }
+ } else {
+ // Initial part.
+ for (i = 0; i < l1; i += 2) {
+ int sum = (1 << (FILTER_BITS - 1));
+ for (j = 0; j < filter_len_half; ++j) {
+ sum += (input[(i - j < 0 ? 0 : i - j)] + input[i + 1 + j]) * filter[j];
+ }
+ sum >>= FILTER_BITS;
+ *optr++ = clip_pixel_highbd(sum, bd);
+ }
+ // Middle part.
+ for (; i < l2; i += 2) {
+ int sum = (1 << (FILTER_BITS - 1));
+ for (j = 0; j < filter_len_half; ++j) {
+ sum += (input[i - j] + input[i + 1 + j]) * filter[j];
+ }
+ sum >>= FILTER_BITS;
+ *optr++ = clip_pixel_highbd(sum, bd);
+ }
+ // End part.
+ for (; i < length; i += 2) {
+ int sum = (1 << (FILTER_BITS - 1));
+ for (j = 0; j < filter_len_half; ++j) {
+ sum += (input[i - j] +
+ input[(i + 1 + j >= length ? length - 1 : i + 1 + j)]) *
+ filter[j];
+ }
+ sum >>= FILTER_BITS;
+ *optr++ = clip_pixel_highbd(sum, bd);
+ }
+ }
+}
+
+static void highbd_down2_symodd(const uint16_t *const input, int length,
+ uint16_t *output, int bd) {
+ // Actual filter len = 2 * filter_len_half - 1.
+ static const int16_t *filter = vp9_down2_symodd_half_filter;
+ const int filter_len_half = sizeof(vp9_down2_symodd_half_filter) / 2;
+ int i, j;
+ uint16_t *optr = output;
+ int l1 = filter_len_half - 1;
+ int l2 = (length - filter_len_half + 1);
+ l1 += (l1 & 1);
+ l2 += (l2 & 1);
+ if (l1 > l2) {
+ // Short input length.
+ for (i = 0; i < length; i += 2) {
+ int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0];
+ for (j = 1; j < filter_len_half; ++j) {
+ sum += (input[(i - j < 0 ? 0 : i - j)] +
+ input[(i + j >= length ? length - 1 : i + j)]) *
+ filter[j];
+ }
+ sum >>= FILTER_BITS;
+ *optr++ = clip_pixel_highbd(sum, bd);
+ }
+ } else {
+ // Initial part.
+ for (i = 0; i < l1; i += 2) {
+ int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0];
+ for (j = 1; j < filter_len_half; ++j) {
+ sum += (input[(i - j < 0 ? 0 : i - j)] + input[i + j]) * filter[j];
+ }
+ sum >>= FILTER_BITS;
+ *optr++ = clip_pixel_highbd(sum, bd);
+ }
+ // Middle part.
+ for (; i < l2; i += 2) {
+ int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0];
+ for (j = 1; j < filter_len_half; ++j) {
+ sum += (input[i - j] + input[i + j]) * filter[j];
+ }
+ sum >>= FILTER_BITS;
+ *optr++ = clip_pixel_highbd(sum, bd);
+ }
+ // End part.
+ for (; i < length; i += 2) {
+ int sum = (1 << (FILTER_BITS - 1)) + input[i] * filter[0];
+ for (j = 1; j < filter_len_half; ++j) {
+ sum += (input[i - j] + input[(i + j >= length ? length - 1 : i + j)]) *
+ filter[j];
+ }
+ sum >>= FILTER_BITS;
+ *optr++ = clip_pixel_highbd(sum, bd);
+ }
+ }
+}
+
+static void highbd_resize_multistep(const uint16_t *const input,
+ int length,
+ uint16_t *output,
+ int olength,
+ uint16_t *buf,
+ int bd) {
+ int steps;
+ if (length == olength) {
+ memcpy(output, input, sizeof(uint16_t) * length);
+ return;
+ }
+ steps = get_down2_steps(length, olength);
+
+ if (steps > 0) {
+ int s;
+ uint16_t *out = NULL;
+ uint16_t *tmpbuf = NULL;
+ uint16_t *otmp, *otmp2;
+ int filteredlength = length;
+ if (!tmpbuf) {
+ tmpbuf = (uint16_t *)malloc(sizeof(uint16_t) * length);
+ otmp = tmpbuf;
+ } else {
+ otmp = buf;
+ }
+ otmp2 = otmp + get_down2_length(length, 1);
+ for (s = 0; s < steps; ++s) {
+ const int proj_filteredlength = get_down2_length(filteredlength, 1);
+ const uint16_t *const in = (s == 0 ? input : out);
+ if (s == steps - 1 && proj_filteredlength == olength)
+ out = output;
+ else
+ out = (s & 1 ? otmp2 : otmp);
+ if (filteredlength & 1)
+ highbd_down2_symodd(in, filteredlength, out, bd);
+ else
+ highbd_down2_symeven(in, filteredlength, out, bd);
+ filteredlength = proj_filteredlength;
+ }
+ if (filteredlength != olength) {
+ highbd_interpolate(out, filteredlength, output, olength, bd);
+ }
+ if (tmpbuf)
+ free(tmpbuf);
+ } else {
+ highbd_interpolate(input, length, output, olength, bd);
+ }
+}
+
+static void highbd_fill_col_to_arr(uint16_t *img, int stride, int len,
+ uint16_t *arr) {
+ int i;
+ uint16_t *iptr = img;
+ uint16_t *aptr = arr;
+ for (i = 0; i < len; ++i, iptr += stride) {
+ *aptr++ = *iptr;
+ }
+}
+
+static void highbd_fill_arr_to_col(uint16_t *img, int stride, int len,
+ uint16_t *arr) {
+ int i;
+ uint16_t *iptr = img;
+ uint16_t *aptr = arr;
+ for (i = 0; i < len; ++i, iptr += stride) {
+ *iptr = *aptr++;
+ }
+}
+
+void vp9_highbd_resize_plane(const uint8_t *const input,
+ int height,
+ int width,
+ int in_stride,
+ uint8_t *output,
+ int height2,
+ int width2,
+ int out_stride,
+ int bd) {
+ int i;
+ uint16_t *intbuf = (uint16_t *)malloc(sizeof(uint16_t) * width2 * height);
+ uint16_t *tmpbuf = (uint16_t *)malloc(sizeof(uint16_t) *
+ (width < height ? height : width));
+ uint16_t *arrbuf = (uint16_t *)malloc(sizeof(uint16_t) * (height + height2));
+ for (i = 0; i < height; ++i) {
+ highbd_resize_multistep(CONVERT_TO_SHORTPTR(input + in_stride * i), width,
+ intbuf + width2 * i, width2, tmpbuf, bd);
+ }
+ for (i = 0; i < width2; ++i) {
+ highbd_fill_col_to_arr(intbuf + i, width2, height, arrbuf);
+ highbd_resize_multistep(arrbuf, height, arrbuf + height, height2, tmpbuf,
+ bd);
+ highbd_fill_arr_to_col(CONVERT_TO_SHORTPTR(output + i), out_stride, height2,
+ arrbuf + height);
+ }
+ free(intbuf);
+ free(tmpbuf);
+ free(arrbuf);
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
+
void vp9_resize_frame420(const uint8_t *const y,
int y_stride,
const uint8_t *const u, const uint8_t *const v,
vp9_resize_plane(v, height, width, uv_stride,
ov, oheight, owidth, ouv_stride);
}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_resize_frame420(const uint8_t *const y,
+ int y_stride,
+ const uint8_t *const u, const uint8_t *const v,
+ int uv_stride,
+ int height, int width,
+ uint8_t *oy, int oy_stride,
+ uint8_t *ou, uint8_t *ov, int ouv_stride,
+ int oheight, int owidth, int bd) {
+ vp9_highbd_resize_plane(y, height, width, y_stride,
+ oy, oheight, owidth, oy_stride, bd);
+ vp9_highbd_resize_plane(u, height / 2, width / 2, uv_stride,
+ ou, oheight / 2, owidth / 2, ouv_stride, bd);
+ vp9_highbd_resize_plane(v, height / 2, width / 2, uv_stride,
+ ov, oheight / 2, owidth / 2, ouv_stride, bd);
+}
+
+void vp9_highbd_resize_frame422(const uint8_t *const y, int y_stride,
+ const uint8_t *const u, const uint8_t *const v,
+ int uv_stride,
+ int height, int width,
+ uint8_t *oy, int oy_stride,
+ uint8_t *ou, uint8_t *ov, int ouv_stride,
+ int oheight, int owidth, int bd) {
+ vp9_highbd_resize_plane(y, height, width, y_stride,
+ oy, oheight, owidth, oy_stride, bd);
+ vp9_highbd_resize_plane(u, height, width / 2, uv_stride,
+ ou, oheight, owidth / 2, ouv_stride, bd);
+ vp9_highbd_resize_plane(v, height, width / 2, uv_stride,
+ ov, oheight, owidth / 2, ouv_stride, bd);
+}
+
+void vp9_highbd_resize_frame444(const uint8_t *const y, int y_stride,
+ const uint8_t *const u, const uint8_t *const v,
+ int uv_stride,
+ int height, int width,
+ uint8_t *oy, int oy_stride,
+ uint8_t *ou, uint8_t *ov, int ouv_stride,
+ int oheight, int owidth, int bd) {
+ vp9_highbd_resize_plane(y, height, width, y_stride,
+ oy, oheight, owidth, oy_stride, bd);
+ vp9_highbd_resize_plane(u, height, width, uv_stride,
+ ou, oheight, owidth, ouv_stride, bd);
+ vp9_highbd_resize_plane(v, height, width, uv_stride,
+ ov, oheight, owidth, ouv_stride, bd);
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
projects / platform / framework / web / crosswalk.git / blobdiff