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Unified Diff: source/libvpx/vp9/common/vp9_reconintra.c

Issue 11555023: libvpx: Add VP9 decoder. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/libvpx/
Patch Set: Created 8 years ago
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« libvpx.gyp ('K') | « source/libvpx/vp9/common/vp9_reconintra.h ('k') | source/libvpx/vp9/common/vp9_reconintra4x4.h » ('j') | no next file with comments »
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Index: source/libvpx/vp9/common/vp9_reconintra.c
===================================================================
--- source/libvpx/vp9/common/vp9_reconintra.c (revision 0)
+++ source/libvpx/vp9/common/vp9_reconintra.c (revision 0)
@@ -0,0 +1,863 @@
+/*
+ * Copyright (c) 2010 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.
+ */
+
+#include <stdio.h>
+#include "vpx_ports/config.h"
+#include "vp9_rtcd.h"
+#include "vp9/common/vp9_reconintra.h"
+#include "vpx_mem/vpx_mem.h"
+
+/* For skip_recon_mb(), add vp9_build_intra_predictors_mby_s(MACROBLOCKD *xd)
+ * and vp9_build_intra_predictors_mbuv_s(MACROBLOCKD *xd).
+ */
+
+static void d27_predictor(uint8_t *ypred_ptr, int y_stride, int n,
+ uint8_t *yabove_row, uint8_t *yleft_col) {
+ int r, c, h, w, v;
+ int a, b;
+ r = 0;
+ for (c = 0; c < n - 2; c++) {
+ if (c & 1)
+ a = yleft_col[r + 1];
+ else
+ a = (yleft_col[r] + yleft_col[r + 1] + 1) >> 1;
+ b = yabove_row[c + 2];
+ ypred_ptr[c] = (2 * a + (c + 1) * b + (c + 3) / 2) / (c + 3);
+ }
+ for (r = 1; r < n / 2 - 1; r++) {
+ for (c = 0; c < n - 2 - 2 * r; c++) {
+ if (c & 1)
+ a = yleft_col[r + 1];
+ else
+ a = (yleft_col[r] + yleft_col[r + 1] + 1) >> 1;
+ b = ypred_ptr[(r - 1) * y_stride + c + 2];
+ ypred_ptr[r * y_stride + c] = (2 * a + (c + 1) * b + (c + 3) / 2) / (c + 3);
+ }
+ }
+ for (; r < n - 1; ++r) {
+ for (c = 0; c < n; c++) {
+ v = (c & 1 ? yleft_col[r + 1] : (yleft_col[r] + yleft_col[r + 1] + 1) >> 1);
+ h = r - c / 2;
+ ypred_ptr[h * y_stride + c] = v;
+ }
+ }
+ c = 0;
+ r = n - 1;
+ ypred_ptr[r * y_stride] = (ypred_ptr[(r - 1) * y_stride] +
+ yleft_col[r] + 1) >> 1;
+ for (r = n - 2; r >= n / 2; --r) {
+ w = c + (n - 1 - r) * 2;
+ ypred_ptr[r * y_stride + w] = (ypred_ptr[(r - 1) * y_stride + w] +
+ ypred_ptr[r * y_stride + w - 1] + 1) >> 1;
+ }
+ for (c = 1; c < n; c++) {
+ for (r = n - 1; r >= n / 2 + c / 2; --r) {
+ w = c + (n - 1 - r) * 2;
+ ypred_ptr[r * y_stride + w] = (ypred_ptr[(r - 1) * y_stride + w] +
+ ypred_ptr[r * y_stride + w - 1] + 1) >> 1;
+ }
+ }
+}
+
+static void d63_predictor(uint8_t *ypred_ptr, int y_stride, int n,
+ uint8_t *yabove_row, uint8_t *yleft_col) {
+ int r, c, h, w, v;
+ int a, b;
+ c = 0;
+ for (r = 0; r < n - 2; r++) {
+ if (r & 1)
+ a = yabove_row[c + 1];
+ else
+ a = (yabove_row[c] + yabove_row[c + 1] + 1) >> 1;
+ b = yleft_col[r + 2];
+ ypred_ptr[r * y_stride] = (2 * a + (r + 1) * b + (r + 3) / 2) / (r + 3);
+ }
+ for (c = 1; c < n / 2 - 1; c++) {
+ for (r = 0; r < n - 2 - 2 * c; r++) {
+ if (r & 1)
+ a = yabove_row[c + 1];
+ else
+ a = (yabove_row[c] + yabove_row[c + 1] + 1) >> 1;
+ b = ypred_ptr[(r + 2) * y_stride + c - 1];
+ ypred_ptr[r * y_stride + c] = (2 * a + (c + 1) * b + (c + 3) / 2) / (c + 3);
+ }
+ }
+ for (; c < n - 1; ++c) {
+ for (r = 0; r < n; r++) {
+ v = (r & 1 ? yabove_row[c + 1] : (yabove_row[c] + yabove_row[c + 1] + 1) >> 1);
+ w = c - r / 2;
+ ypred_ptr[r * y_stride + w] = v;
+ }
+ }
+ r = 0;
+ c = n - 1;
+ ypred_ptr[c] = (ypred_ptr[(c - 1)] + yabove_row[c] + 1) >> 1;
+ for (c = n - 2; c >= n / 2; --c) {
+ h = r + (n - 1 - c) * 2;
+ ypred_ptr[h * y_stride + c] = (ypred_ptr[h * y_stride + c - 1] +
+ ypred_ptr[(h - 1) * y_stride + c] + 1) >> 1;
+ }
+ for (r = 1; r < n; r++) {
+ for (c = n - 1; c >= n / 2 + r / 2; --c) {
+ h = r + (n - 1 - c) * 2;
+ ypred_ptr[h * y_stride + c] = (ypred_ptr[h * y_stride + c - 1] +
+ ypred_ptr[(h - 1) * y_stride + c] + 1) >> 1;
+ }
+ }
+}
+
+static void d45_predictor(uint8_t *ypred_ptr, int y_stride, int n,
+ uint8_t *yabove_row, uint8_t *yleft_col) {
+ int r, c;
+ for (r = 0; r < n - 1; ++r) {
+ for (c = 0; c <= r; ++c) {
+ ypred_ptr[(r - c) * y_stride + c] =
+ (yabove_row[r + 1] * (c + 1) +
+ yleft_col[r + 1] * (r - c + 1) + r / 2 + 1) / (r + 2);
+ }
+ }
+ for (c = 0; c <= r; ++c) {
+ int yabove_ext = yabove_row[r]; // 2*yabove_row[r] - yabove_row[r-1];
+ int yleft_ext = yleft_col[r]; // 2*yleft_col[r] - yleft_col[r-1];
+ yabove_ext = (yabove_ext > 255 ? 255 : (yabove_ext < 0 ? 0 : yabove_ext));
+ yleft_ext = (yleft_ext > 255 ? 255 : (yleft_ext < 0 ? 0 : yleft_ext));
+ ypred_ptr[(r - c) * y_stride + c] =
+ (yabove_ext * (c + 1) +
+ yleft_ext * (r - c + 1) + r / 2 + 1) / (r + 2);
+ }
+ for (r = 1; r < n; ++r) {
+ for (c = n - r; c < n; ++c)
+ ypred_ptr[r * y_stride + c] = (ypred_ptr[(r - 1) * y_stride + c] +
+ ypred_ptr[r * y_stride + c - 1] + 1) >> 1;
+ }
+}
+
+static void d117_predictor(uint8_t *ypred_ptr, int y_stride, int n,
+ uint8_t *yabove_row, uint8_t *yleft_col) {
+ int r, c;
+ for (c = 0; c < n; c++)
+ ypred_ptr[c] = (yabove_row[c - 1] + yabove_row[c] + 1) >> 1;
+ ypred_ptr += y_stride;
+ for (c = 0; c < n; c++)
+ ypred_ptr[c] = yabove_row[c - 1];
+ ypred_ptr += y_stride;
+ for (r = 2; r < n; ++r) {
+ ypred_ptr[0] = yleft_col[r - 2];
+ for (c = 1; c < n; c++)
+ ypred_ptr[c] = ypred_ptr[-2 * y_stride + c - 1];
+ ypred_ptr += y_stride;
+ }
+}
+
+static void d135_predictor(uint8_t *ypred_ptr, int y_stride, int n,
+ uint8_t *yabove_row, uint8_t *yleft_col) {
+ int r, c;
+ ypred_ptr[0] = yabove_row[-1];
+ for (c = 1; c < n; c++)
+ ypred_ptr[c] = yabove_row[c - 1];
+ for (r = 1; r < n; ++r)
+ ypred_ptr[r * y_stride] = yleft_col[r - 1];
+
+ ypred_ptr += y_stride;
+ for (r = 1; r < n; ++r) {
+ for (c = 1; c < n; c++) {
+ ypred_ptr[c] = ypred_ptr[-y_stride + c - 1];
+ }
+ ypred_ptr += y_stride;
+ }
+}
+
+static void d153_predictor(uint8_t *ypred_ptr, int y_stride, int n,
+ uint8_t *yabove_row, uint8_t *yleft_col) {
+ int r, c;
+ ypred_ptr[0] = (yabove_row[-1] + yleft_col[0] + 1) >> 1;
+ for (r = 1; r < n; r++)
+ ypred_ptr[r * y_stride] = (yleft_col[r - 1] + yleft_col[r] + 1) >> 1;
+ ypred_ptr++;
+ ypred_ptr[0] = yabove_row[-1];
+ for (r = 1; r < n; r++)
+ ypred_ptr[r * y_stride] = yleft_col[r - 1];
+ ypred_ptr++;
+
+ for (c = 0; c < n - 2; c++)
+ ypred_ptr[c] = yabove_row[c];
+ ypred_ptr += y_stride;
+ for (r = 1; r < n; ++r) {
+ for (c = 0; c < n - 2; c++)
+ ypred_ptr[c] = ypred_ptr[-y_stride + c - 2];
+ ypred_ptr += y_stride;
+ }
+}
+
+static void corner_predictor(unsigned char *ypred_ptr, int y_stride, int n,
+ unsigned char *yabove_row,
+ unsigned char *yleft_col) {
+ int mh, mv, maxgradh, maxgradv, x, y, nx, ny;
+ int i, j;
+ int top_left = yabove_row[-1];
+ mh = mv = 0;
+ maxgradh = yabove_row[1] - top_left;
+ maxgradv = yleft_col[1] - top_left;
+ for (i = 2; i < n; ++i) {
+ int gh = yabove_row[i] - yabove_row[i - 2];
+ int gv = yleft_col[i] - yleft_col[i - 2];
+ if (gh > maxgradh) {
+ maxgradh = gh;
+ mh = i - 1;
+ }
+ if (gv > maxgradv) {
+ maxgradv = gv;
+ mv = i - 1;
+ }
+ }
+ nx = mh + mv + 3;
+ ny = 2 * n + 1 - nx;
+
+ x = top_left;
+ for (i = 0; i <= mh; ++i) x += yabove_row[i];
+ for (i = 0; i <= mv; ++i) x += yleft_col[i];
+ x += (nx >> 1);
+ x /= nx;
+ y = 0;
+ for (i = mh + 1; i < n; ++i) y += yabove_row[i];
+ for (i = mv + 1; i < n; ++i) y += yleft_col[i];
+ y += (ny >> 1);
+ y /= ny;
+
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < n; ++j)
+ ypred_ptr[j] = (i <= mh && j <= mv ? x : y);
+ ypred_ptr += y_stride;
+ }
+}
+
+void vp9_recon_intra_mbuv(MACROBLOCKD *xd) {
+ int i;
+ for (i = 16; i < 24; i += 2) {
+ BLOCKD *b = &xd->block[i];
+ vp9_recon2b(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
+ }
+}
+
+void vp9_build_intra_predictors_internal(unsigned char *src, int src_stride,
+ unsigned char *ypred_ptr,
+ int y_stride, int mode, int bsize,
+ int up_available, int left_available) {
+
+ unsigned char *yabove_row = src - src_stride;
+ unsigned char yleft_col[32];
+ unsigned char ytop_left = yabove_row[-1];
+ int r, c, i;
+
+ for (i = 0; i < bsize; i++) {
+ yleft_col[i] = src[i * src_stride - 1];
+ }
+
+ /* for Y */
+ switch (mode) {
+ case DC_PRED: {
+ int expected_dc;
+ int i;
+ int shift;
+ int average = 0;
+ int log2_bsize_minus_1;
+
+ assert(bsize == 4 || bsize == 8 || bsize == 16 || bsize == 32);
+ if (bsize == 4) {
+ log2_bsize_minus_1 = 1;
+ } else if (bsize == 8) {
+ log2_bsize_minus_1 = 2;
+ } else if (bsize == 16) {
+ log2_bsize_minus_1 = 3;
+ } else /* bsize == 32 */ {
+ log2_bsize_minus_1 = 4;
+ }
+
+ if (up_available || left_available) {
+ if (up_available) {
+ for (i = 0; i < bsize; i++) {
+ average += yabove_row[i];
+ }
+ }
+
+ if (left_available) {
+ for (i = 0; i < bsize; i++) {
+ average += yleft_col[i];
+ }
+ }
+ shift = log2_bsize_minus_1 + up_available + left_available;
+ expected_dc = (average + (1 << (shift - 1))) >> shift;
+ } else {
+ expected_dc = 128;
+ }
+
+ for (r = 0; r < bsize; r++) {
+ vpx_memset(ypred_ptr, expected_dc, bsize);
+ ypred_ptr += y_stride;
+ }
+ }
+ break;
+ case V_PRED: {
+ for (r = 0; r < bsize; r++) {
+ memcpy(ypred_ptr, yabove_row, bsize);
+ ypred_ptr += y_stride;
+ }
+ }
+ break;
+ case H_PRED: {
+ for (r = 0; r < bsize; r++) {
+ vpx_memset(ypred_ptr, yleft_col[r], bsize);
+ ypred_ptr += y_stride;
+ }
+ }
+ break;
+ case TM_PRED: {
+ for (r = 0; r < bsize; r++) {
+ for (c = 0; c < bsize; c++) {
+ int pred = yleft_col[r] + yabove_row[ c] - ytop_left;
+
+ if (pred < 0)
+ pred = 0;
+
+ if (pred > 255)
+ pred = 255;
+
+ ypred_ptr[c] = pred;
+ }
+
+ ypred_ptr += y_stride;
+ }
+ }
+ break;
+ case D45_PRED: {
+ d45_predictor(ypred_ptr, y_stride, bsize, yabove_row, yleft_col);
+ }
+ break;
+ case D135_PRED: {
+ d135_predictor(ypred_ptr, y_stride, bsize, yabove_row, yleft_col);
+ }
+ break;
+ case D117_PRED: {
+ d117_predictor(ypred_ptr, y_stride, bsize, yabove_row, yleft_col);
+ }
+ break;
+ case D153_PRED: {
+ d153_predictor(ypred_ptr, y_stride, bsize, yabove_row, yleft_col);
+ }
+ break;
+ case D27_PRED: {
+ d27_predictor(ypred_ptr, y_stride, bsize, yabove_row, yleft_col);
+ }
+ break;
+ case D63_PRED: {
+ d63_predictor(ypred_ptr, y_stride, bsize, yabove_row, yleft_col);
+ }
+ break;
+ case I8X8_PRED:
+ case B_PRED:
+ case NEARESTMV:
+ case NEARMV:
+ case ZEROMV:
+ case NEWMV:
+ case SPLITMV:
+ case MB_MODE_COUNT:
+ break;
+ }
+}
+
+#if CONFIG_COMP_INTERINTRA_PRED
+static void combine_interintra(MB_PREDICTION_MODE mode,
+ unsigned char *interpred,
+ int interstride,
+ unsigned char *intrapred,
+ int intrastride,
+ int size) {
+ // TODO(debargha): Explore different ways of combining predictors
+ // or designing the tables below
+ static const int scale_bits = 8;
+ static const int scale_max = 256; // 1 << scale_bits;
+ static const int scale_round = 127; // (1 << (scale_bits - 1));
+ // This table is a function A + B*exp(-kx), where x is hor. index
+ static const int weights1d[32] = {
+ 128, 122, 116, 111, 107, 103, 99, 96,
+ 93, 90, 88, 85, 83, 81, 80, 78,
+ 77, 76, 75, 74, 73, 72, 71, 70,
+ 70, 69, 69, 68, 68, 68, 67, 67,
+ };
+ // This table is a function A + B*exp(-k.sqrt(xy)), where x, y are
+ // hor. and vert. indices
+ static const int weights2d[1024] = {
+ 128, 128, 128, 128, 128, 128, 128, 128,
+ 128, 128, 128, 128, 128, 128, 128, 128,
+ 128, 128, 128, 128, 128, 128, 128, 128,
+ 128, 128, 128, 128, 128, 128, 128, 128,
+ 128, 122, 120, 118, 116, 115, 114, 113,
+ 112, 111, 111, 110, 109, 109, 108, 107,
+ 107, 106, 106, 105, 105, 104, 104, 104,
+ 103, 103, 102, 102, 102, 101, 101, 101,
+ 128, 120, 116, 114, 112, 111, 109, 108,
+ 107, 106, 105, 104, 103, 102, 102, 101,
+ 100, 100, 99, 99, 98, 97, 97, 96,
+ 96, 96, 95, 95, 94, 94, 93, 93,
+ 128, 118, 114, 111, 109, 107, 106, 104,
+ 103, 102, 101, 100, 99, 98, 97, 97,
+ 96, 95, 95, 94, 93, 93, 92, 92,
+ 91, 91, 90, 90, 90, 89, 89, 88,
+ 128, 116, 112, 109, 107, 105, 103, 102,
+ 100, 99, 98, 97, 96, 95, 94, 93,
+ 93, 92, 91, 91, 90, 90, 89, 89,
+ 88, 88, 87, 87, 86, 86, 85, 85,
+ 128, 115, 111, 107, 105, 103, 101, 99,
+ 98, 97, 96, 94, 93, 93, 92, 91,
+ 90, 89, 89, 88, 88, 87, 86, 86,
+ 85, 85, 84, 84, 84, 83, 83, 82,
+ 128, 114, 109, 106, 103, 101, 99, 97,
+ 96, 95, 93, 92, 91, 90, 90, 89,
+ 88, 87, 87, 86, 85, 85, 84, 84,
+ 83, 83, 82, 82, 82, 81, 81, 80,
+ 128, 113, 108, 104, 102, 99, 97, 96,
+ 94, 93, 92, 91, 90, 89, 88, 87,
+ 86, 85, 85, 84, 84, 83, 83, 82,
+ 82, 81, 81, 80, 80, 79, 79, 79,
+ 128, 112, 107, 103, 100, 98, 96, 94,
+ 93, 91, 90, 89, 88, 87, 86, 85,
+ 85, 84, 83, 83, 82, 82, 81, 80,
+ 80, 80, 79, 79, 78, 78, 78, 77,
+ 128, 111, 106, 102, 99, 97, 95, 93,
+ 91, 90, 89, 88, 87, 86, 85, 84,
+ 83, 83, 82, 81, 81, 80, 80, 79,
+ 79, 78, 78, 77, 77, 77, 76, 76,
+ 128, 111, 105, 101, 98, 96, 93, 92,
+ 90, 89, 88, 86, 85, 84, 84, 83,
+ 82, 81, 81, 80, 80, 79, 79, 78,
+ 78, 77, 77, 76, 76, 76, 75, 75,
+ 128, 110, 104, 100, 97, 94, 92, 91,
+ 89, 88, 86, 85, 84, 83, 83, 82,
+ 81, 80, 80, 79, 79, 78, 78, 77,
+ 77, 76, 76, 75, 75, 75, 74, 74,
+ 128, 109, 103, 99, 96, 93, 91, 90,
+ 88, 87, 85, 84, 83, 82, 82, 81,
+ 80, 79, 79, 78, 78, 77, 77, 76,
+ 76, 75, 75, 75, 74, 74, 74, 73,
+ 128, 109, 102, 98, 95, 93, 90, 89,
+ 87, 86, 84, 83, 82, 81, 81, 80,
+ 79, 78, 78, 77, 77, 76, 76, 75,
+ 75, 75, 74, 74, 73, 73, 73, 73,
+ 128, 108, 102, 97, 94, 92, 90, 88,
+ 86, 85, 84, 83, 82, 81, 80, 79,
+ 78, 78, 77, 77, 76, 76, 75, 75,
+ 74, 74, 73, 73, 73, 73, 72, 72,
+ 128, 107, 101, 97, 93, 91, 89, 87,
+ 85, 84, 83, 82, 81, 80, 79, 78,
+ 78, 77, 76, 76, 75, 75, 74, 74,
+ 74, 73, 73, 73, 72, 72, 72, 71,
+ 128, 107, 100, 96, 93, 90, 88, 86,
+ 85, 83, 82, 81, 80, 79, 78, 78,
+ 77, 76, 76, 75, 75, 74, 74, 73,
+ 73, 73, 72, 72, 72, 71, 71, 71,
+ 128, 106, 100, 95, 92, 89, 87, 85,
+ 84, 83, 81, 80, 79, 78, 78, 77,
+ 76, 76, 75, 75, 74, 74, 73, 73,
+ 72, 72, 72, 72, 71, 71, 71, 70,
+ 128, 106, 99, 95, 91, 89, 87, 85,
+ 83, 82, 81, 80, 79, 78, 77, 76,
+ 76, 75, 75, 74, 74, 73, 73, 72,
+ 72, 72, 71, 71, 71, 71, 70, 70,
+ 128, 105, 99, 94, 91, 88, 86, 84,
+ 83, 81, 80, 79, 78, 77, 77, 76,
+ 75, 75, 74, 74, 73, 73, 72, 72,
+ 72, 71, 71, 71, 70, 70, 70, 70,
+ 128, 105, 98, 93, 90, 88, 85, 84,
+ 82, 81, 80, 79, 78, 77, 76, 75,
+ 75, 74, 74, 73, 73, 72, 72, 71,
+ 71, 71, 71, 70, 70, 70, 70, 69,
+ 128, 104, 97, 93, 90, 87, 85, 83,
+ 82, 80, 79, 78, 77, 76, 76, 75,
+ 74, 74, 73, 73, 72, 72, 71, 71,
+ 71, 70, 70, 70, 70, 69, 69, 69,
+ 128, 104, 97, 92, 89, 86, 84, 83,
+ 81, 80, 79, 78, 77, 76, 75, 74,
+ 74, 73, 73, 72, 72, 71, 71, 71,
+ 70, 70, 70, 70, 69, 69, 69, 69,
+ 128, 104, 96, 92, 89, 86, 84, 82,
+ 80, 79, 78, 77, 76, 75, 75, 74,
+ 73, 73, 72, 72, 71, 71, 71, 70,
+ 70, 70, 70, 69, 69, 69, 69, 68,
+ 128, 103, 96, 91, 88, 85, 83, 82,
+ 80, 79, 78, 77, 76, 75, 74, 74,
+ 73, 72, 72, 72, 71, 71, 70, 70,
+ 70, 70, 69, 69, 69, 69, 68, 68,
+ 128, 103, 96, 91, 88, 85, 83, 81,
+ 80, 78, 77, 76, 75, 75, 74, 73,
+ 73, 72, 72, 71, 71, 70, 70, 70,
+ 70, 69, 69, 69, 69, 68, 68, 68,
+ 128, 102, 95, 90, 87, 84, 82, 81,
+ 79, 78, 77, 76, 75, 74, 73, 73,
+ 72, 72, 71, 71, 71, 70, 70, 70,
+ 69, 69, 69, 69, 68, 68, 68, 68,
+ 128, 102, 95, 90, 87, 84, 82, 80,
+ 79, 77, 76, 75, 75, 74, 73, 73,
+ 72, 72, 71, 71, 70, 70, 70, 69,
+ 69, 69, 69, 68, 68, 68, 68, 68,
+ 128, 102, 94, 90, 86, 84, 82, 80,
+ 78, 77, 76, 75, 74, 73, 73, 72,
+ 72, 71, 71, 70, 70, 70, 69, 69,
+ 69, 69, 68, 68, 68, 68, 68, 67,
+ 128, 101, 94, 89, 86, 83, 81, 79,
+ 78, 77, 76, 75, 74, 73, 73, 72,
+ 71, 71, 71, 70, 70, 69, 69, 69,
+ 69, 68, 68, 68, 68, 68, 67, 67,
+ 128, 101, 93, 89, 85, 83, 81, 79,
+ 78, 76, 75, 74, 74, 73, 72, 72,
+ 71, 71, 70, 70, 70, 69, 69, 69,
+ 68, 68, 68, 68, 68, 67, 67, 67,
+ 128, 101, 93, 88, 85, 82, 80, 79,
+ 77, 76, 75, 74, 73, 73, 72, 71,
+ 71, 70, 70, 70, 69, 69, 69, 68,
+ 68, 68, 68, 68, 67, 67, 67, 67,
+ };
+ int size_scale = (size == 32 ? 1 :
+ size == 16 ? 2 :
+ size == 8 ? 4 : 8);
+ int i, j;
+ switch (mode) {
+ case V_PRED:
+ for (i = 0; i < size; ++i) {
+ for (j = 0; j < size; ++j) {
+ int k = i * interstride + j;
+ int scale = weights1d[i * size_scale];
+ interpred[k] =
+ ((scale_max - scale) * interpred[k] +
+ scale * intrapred[i * intrastride + j] + scale_round)
+ >> scale_bits;
+ }
+ }
+ break;
+
+ case H_PRED:
+ for (i = 0; i < size; ++i) {
+ for (j = 0; j < size; ++j) {
+ int k = i * interstride + j;
+ int scale = weights1d[j * size_scale];
+ interpred[k] =
+ ((scale_max - scale) * interpred[k] +
+ scale * intrapred[i * intrastride + j] + scale_round)
+ >> scale_bits;
+ }
+ }
+ break;
+
+ case D63_PRED:
+ case D117_PRED:
+ for (i = 0; i < size; ++i) {
+ for (j = 0; j < size; ++j) {
+ int k = i * interstride + j;
+ int scale = (weights2d[i * size_scale * 32 + j * size_scale] +
+ weights1d[i * size_scale]) >> 1;
+ interpred[k] =
+ ((scale_max - scale) * interpred[k] +
+ scale * intrapred[i * intrastride + j] + scale_round)
+ >> scale_bits;
+ }
+ }
+ break;
+
+ case D27_PRED:
+ case D153_PRED:
+ for (i = 0; i < size; ++i) {
+ for (j = 0; j < size; ++j) {
+ int k = i * interstride + j;
+ int scale = (weights2d[i * size_scale * 32 + j * size_scale] +
+ weights1d[j * size_scale]) >> 1;
+ interpred[k] =
+ ((scale_max - scale) * interpred[k] +
+ scale * intrapred[i * intrastride + j] + scale_round)
+ >> scale_bits;
+ }
+ }
+ break;
+
+ case D135_PRED:
+ for (i = 0; i < size; ++i) {
+ for (j = 0; j < size; ++j) {
+ int k = i * interstride + j;
+ int scale = weights2d[i * size_scale * 32 + j * size_scale];
+ interpred[k] =
+ ((scale_max - scale) * interpred[k] +
+ scale * intrapred[i * intrastride + j] + scale_round)
+ >> scale_bits;
+ }
+ }
+ break;
+
+ case D45_PRED:
+ case DC_PRED:
+ case TM_PRED:
+ default:
+ // simple average
+ for (i = 0; i < size; ++i) {
+ for (j = 0; j < size; ++j) {
+ int k = i * interstride + j;
+ interpred[k] = (interpred[k] + intrapred[i * intrastride + j]) >> 1;
+ }
+ }
+ break;
+ }
+}
+
+void vp9_build_interintra_16x16_predictors_mb(MACROBLOCKD *xd,
+ unsigned char *ypred,
+ unsigned char *upred,
+ unsigned char *vpred,
+ int ystride, int uvstride) {
+ vp9_build_interintra_16x16_predictors_mby(xd, ypred, ystride);
+ vp9_build_interintra_16x16_predictors_mbuv(xd, upred, vpred, uvstride);
+}
+
+void vp9_build_interintra_16x16_predictors_mby(MACROBLOCKD *xd,
+ unsigned char *ypred,
+ int ystride) {
+ unsigned char intrapredictor[256];
+ vp9_build_intra_predictors_internal(
+ xd->dst.y_buffer, xd->dst.y_stride,
+ intrapredictor, 16,
+ xd->mode_info_context->mbmi.interintra_mode, 16,
+ xd->up_available, xd->left_available);
+ combine_interintra(xd->mode_info_context->mbmi.interintra_mode,
+ ypred, ystride, intrapredictor, 16, 16);
+}
+
+void vp9_build_interintra_16x16_predictors_mbuv(MACROBLOCKD *xd,
+ unsigned char *upred,
+ unsigned char *vpred,
+ int uvstride) {
+ unsigned char uintrapredictor[64];
+ unsigned char vintrapredictor[64];
+ vp9_build_intra_predictors_internal(
+ xd->dst.u_buffer, xd->dst.uv_stride,
+ uintrapredictor, 8,
+ xd->mode_info_context->mbmi.interintra_uv_mode, 8,
+ xd->up_available, xd->left_available);
+ vp9_build_intra_predictors_internal(
+ xd->dst.v_buffer, xd->dst.uv_stride,
+ vintrapredictor, 8,
+ xd->mode_info_context->mbmi.interintra_uv_mode, 8,
+ xd->up_available, xd->left_available);
+ combine_interintra(xd->mode_info_context->mbmi.interintra_uv_mode,
+ upred, uvstride, uintrapredictor, 8, 8);
+ combine_interintra(xd->mode_info_context->mbmi.interintra_uv_mode,
+ vpred, uvstride, vintrapredictor, 8, 8);
+}
+
+#if CONFIG_SUPERBLOCKS
+void vp9_build_interintra_32x32_predictors_sby(MACROBLOCKD *xd,
+ unsigned char *ypred,
+ int ystride) {
+ unsigned char intrapredictor[1024];
+ vp9_build_intra_predictors_internal(
+ xd->dst.y_buffer, xd->dst.y_stride,
+ intrapredictor, 32,
+ xd->mode_info_context->mbmi.interintra_mode, 32,
+ xd->up_available, xd->left_available);
+ combine_interintra(xd->mode_info_context->mbmi.interintra_mode,
+ ypred, ystride, intrapredictor, 32, 32);
+}
+
+void vp9_build_interintra_32x32_predictors_sbuv(MACROBLOCKD *xd,
+ unsigned char *upred,
+ unsigned char *vpred,
+ int uvstride) {
+ unsigned char uintrapredictor[256];
+ unsigned char vintrapredictor[256];
+ vp9_build_intra_predictors_internal(
+ xd->dst.u_buffer, xd->dst.uv_stride,
+ uintrapredictor, 16,
+ xd->mode_info_context->mbmi.interintra_uv_mode, 16,
+ xd->up_available, xd->left_available);
+ vp9_build_intra_predictors_internal(
+ xd->dst.v_buffer, xd->dst.uv_stride,
+ vintrapredictor, 16,
+ xd->mode_info_context->mbmi.interintra_uv_mode, 16,
+ xd->up_available, xd->left_available);
+ combine_interintra(xd->mode_info_context->mbmi.interintra_uv_mode,
+ upred, uvstride, uintrapredictor, 16, 16);
+ combine_interintra(xd->mode_info_context->mbmi.interintra_uv_mode,
+ vpred, uvstride, vintrapredictor, 16, 16);
+}
+
+void vp9_build_interintra_32x32_predictors_sb(MACROBLOCKD *xd,
+ unsigned char *ypred,
+ unsigned char *upred,
+ unsigned char *vpred,
+ int ystride,
+ int uvstride) {
+ vp9_build_interintra_32x32_predictors_sby(xd, ypred, ystride);
+ vp9_build_interintra_32x32_predictors_sbuv(xd, upred, vpred, uvstride);
+}
+#endif
+#endif
+
+void vp9_build_intra_predictors_mby(MACROBLOCKD *xd) {
+ vp9_build_intra_predictors_internal(xd->dst.y_buffer, xd->dst.y_stride,
+ xd->predictor, 16,
+ xd->mode_info_context->mbmi.mode, 16,
+ xd->up_available, xd->left_available);
+}
+
+void vp9_build_intra_predictors_mby_s(MACROBLOCKD *xd) {
+ vp9_build_intra_predictors_internal(xd->dst.y_buffer, xd->dst.y_stride,
+ xd->dst.y_buffer, xd->dst.y_stride,
+ xd->mode_info_context->mbmi.mode, 16,
+ xd->up_available, xd->left_available);
+}
+
+#if CONFIG_SUPERBLOCKS
+void vp9_build_intra_predictors_sby_s(MACROBLOCKD *xd) {
+ vp9_build_intra_predictors_internal(xd->dst.y_buffer, xd->dst.y_stride,
+ xd->dst.y_buffer, xd->dst.y_stride,
+ xd->mode_info_context->mbmi.mode, 32,
+ xd->up_available, xd->left_available);
+}
+#endif
+
+#if CONFIG_COMP_INTRA_PRED
+void vp9_build_comp_intra_predictors_mby(MACROBLOCKD *xd) {
+ unsigned char predictor[2][256];
+ int i;
+
+ vp9_build_intra_predictors_internal(xd->dst.y_buffer, xd->dst.y_stride,
+ predictor[0], 16,
+ xd->mode_info_context->mbmi.mode,
+ 16, xd->up_available,
+ xd->left_available);
+ vp9_build_intra_predictors_internal(xd->dst.y_buffer, xd->dst.y_stride,
+ predictor[1], 16,
+ xd->mode_info_context->mbmi.second_mode,
+ 16, xd->up_available,
+ xd->left_available);
+
+ for (i = 0; i < 256; i++) {
+ xd->predictor[i] = (predictor[0][i] + predictor[1][i] + 1) >> 1;
+ }
+}
+#endif
+
+void vp9_build_intra_predictors_mbuv_internal(MACROBLOCKD *xd,
+ unsigned char *upred_ptr,
+ unsigned char *vpred_ptr,
+ int uv_stride,
+ int mode, int bsize) {
+ vp9_build_intra_predictors_internal(xd->dst.u_buffer, xd->dst.uv_stride,
+ upred_ptr, uv_stride, mode, bsize,
+ xd->up_available, xd->left_available);
+ vp9_build_intra_predictors_internal(xd->dst.v_buffer, xd->dst.uv_stride,
+ vpred_ptr, uv_stride, mode, bsize,
+ xd->up_available, xd->left_available);
+}
+
+void vp9_build_intra_predictors_mbuv(MACROBLOCKD *xd) {
+ vp9_build_intra_predictors_mbuv_internal(xd, &xd->predictor[256],
+ &xd->predictor[320], 8,
+ xd->mode_info_context->mbmi.uv_mode,
+ 8);
+}
+
+void vp9_build_intra_predictors_mbuv_s(MACROBLOCKD *xd) {
+ vp9_build_intra_predictors_mbuv_internal(xd, xd->dst.u_buffer,
+ xd->dst.v_buffer,
+ xd->dst.uv_stride,
+ xd->mode_info_context->mbmi.uv_mode,
+ 8);
+}
+
+#if CONFIG_SUPERBLOCKS
+void vp9_build_intra_predictors_sbuv_s(MACROBLOCKD *xd) {
+ vp9_build_intra_predictors_mbuv_internal(xd, xd->dst.u_buffer,
+ xd->dst.v_buffer, xd->dst.uv_stride,
+ xd->mode_info_context->mbmi.uv_mode,
+ 16);
+}
+#endif
+
+#if CONFIG_COMP_INTRA_PRED
+void vp9_build_comp_intra_predictors_mbuv(MACROBLOCKD *xd) {
+ unsigned char predictor[2][2][64];
+ int i;
+
+ vp9_build_intra_predictors_mbuv_internal(
+ xd, predictor[0][0], predictor[1][0], 8,
+ xd->mode_info_context->mbmi.uv_mode, 8);
+ vp9_build_intra_predictors_mbuv_internal(
+ xd, predictor[0][1], predictor[1][1], 8,
+ xd->mode_info_context->mbmi.second_uv_mode, 8);
+ for (i = 0; i < 64; i++) {
+ xd->predictor[256 + i] = (predictor[0][0][i] + predictor[0][1][i] + 1) >> 1;
+ xd->predictor[256 + 64 + i] = (predictor[1][0][i] +
+ predictor[1][1][i] + 1) >> 1;
+ }
+}
+#endif
+
+void vp9_intra8x8_predict(BLOCKD *xd,
+ int mode,
+ unsigned char *predictor) {
+ vp9_build_intra_predictors_internal(*(xd->base_dst) + xd->dst,
+ xd->dst_stride, predictor, 16,
+ mode, 8, 1, 1);
+}
+
+#if CONFIG_COMP_INTRA_PRED
+void vp9_comp_intra8x8_predict(BLOCKD *xd,
+ int mode, int second_mode,
+ unsigned char *out_predictor) {
+ unsigned char predictor[2][8 * 16];
+ int i, j;
+
+ vp9_intra8x8_predict(xd, mode, predictor[0]);
+ vp9_intra8x8_predict(xd, second_mode, predictor[1]);
+
+ for (i = 0; i < 8 * 16; i += 16) {
+ for (j = i; j < i + 8; j++) {
+ out_predictor[j] = (predictor[0][j] + predictor[1][j] + 1) >> 1;
+ }
+ }
+}
+#endif
+
+void vp9_intra_uv4x4_predict(BLOCKD *xd,
+ int mode,
+ unsigned char *predictor) {
+ vp9_build_intra_predictors_internal(*(xd->base_dst) + xd->dst,
+ xd->dst_stride, predictor, 8,
+ mode, 4, 1, 1);
+}
+
+#if CONFIG_COMP_INTRA_PRED
+void vp9_comp_intra_uv4x4_predict(BLOCKD *xd,
+ int mode, int mode2,
+ unsigned char *out_predictor) {
+ unsigned char predictor[2][8 * 4];
+ int i, j;
+
+ vp9_intra_uv4x4_predict(xd, mode, predictor[0]);
+ vp9_intra_uv4x4_predict(xd, mode2, predictor[1]);
+
+ for (i = 0; i < 4 * 8; i += 8) {
+ for (j = i; j < i + 4; j++) {
+ out_predictor[j] = (predictor[0][j] + predictor[1][j] + 1) >> 1;
+ }
+ }
+}
+#endif
+
+/* TODO: try different ways of use Y-UV mode correlation
+ Current code assumes that a uv 4x4 block use same mode
+ as corresponding Y 8x8 area
+ */
Property changes on: source/libvpx/vp9/common/vp9_reconintra.c
___________________________________________________________________
Added: svn:eol-style
+ LF
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