Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 108 insertions, 0 deletions

diff --git a/third_party/dav1d/src/ipred_prepare.h b/third_party/dav1d/src/ipred_prepare.h
new file mode 100644
index 0000000000..6a7efeb3d7
--- /dev/null
+++ b/third_party/dav1d/src/ipred_prepare.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright © 2018, VideoLAN and dav1d authors
+ * Copyright © 2018, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef DAV1D_SRC_IPRED_PREPARE_H
+#define DAV1D_SRC_IPRED_PREPARE_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "common/bitdepth.h"
+
+#include "src/env.h"
+#include "src/intra_edge.h"
+#include "src/levels.h"
+
+/*
+ * Luma intra edge preparation.
+ *
+ * x/y/start/w/h are in luma block (4px) units:
+ * - x and y are the absolute block positions in the image;
+ * - start/w/h are the *dependent tile* boundary positions. In practice, start
+ *   is the horizontal tile start, w is the horizontal tile end, the vertical
+ *   tile start is assumed to be 0 and h is the vertical image end.
+ *
+ * edge_flags signals which edges are available for this transform-block inside
+ * the given partition, as well as for the partition inside the superblock
+ * structure.
+ *
+ * dst and stride are pointers to the top/left position of the current block,
+ * and can be used to locate the top, left, top/left, top/right and bottom/left
+ * edge pointers also.
+ *
+ * angle is the angle_delta [-3..3] on input, and the absolute angle on output.
+ *
+ * mode is the intra prediction mode as coded in the bitstream. The return value
+ * is this same mode, converted to an index in the DSP functions.
+ *
+ * tw/th are the size of the transform block in block (4px) units.
+ *
+ * topleft_out is a pointer to scratch memory that will be filled with the edge
+ * pixels. The memory array should have space to be indexed in the [-2*w,2*w]
+ * range, in the following order:
+ * - [0] will be the top/left edge pixel;
+ * - [1..w] will be the top edge pixels (1 being left-most, w being right-most);
+ * - [w+1..2*w] will be the top/right edge pixels;
+ * - [-1..-w] will be the left edge pixels (-1 being top-most, -w being bottom-
+ *   most);
+ * - [-w-1..-2*w] will be the bottom/left edge pixels.
+ * Each edge may remain uninitialized if it is not used by the returned mode
+ * index. If edges are not available (because the edge position is outside the
+ * tile dimensions or because edge_flags indicates lack of edge availability),
+ * they will be extended from nearby edges as defined by the av1 spec.
+ */
+enum IntraPredMode
+    bytefn(dav1d_prepare_intra_edges)(int x, int have_left, int y, int have_top,
+                                      int w, int h, enum EdgeFlags edge_flags,
+                                      const pixel *dst, ptrdiff_t stride,
+                                      const pixel *prefilter_toplevel_sb_edge,
+                                      enum IntraPredMode mode, int *angle,
+                                      int tw, int th, int filter_edge,
+                                      pixel *topleft_out HIGHBD_DECL_SUFFIX);
+
+// These flags are OR'd with the angle argument into intra predictors.
+// ANGLE_USE_EDGE_FILTER_FLAG signals that edges should be convolved
+// with a filter before using them to predict values in a block.
+// ANGLE_SMOOTH_EDGE_FLAG means that edges are smooth and should use
+// reduced filter strength.
+#define ANGLE_USE_EDGE_FILTER_FLAG 1024
+#define ANGLE_SMOOTH_EDGE_FLAG      512
+
+static inline int sm_flag(const BlockContext *const b, const int idx) {
+    if (!b->intra[idx]) return 0;
+    const enum IntraPredMode m = b->mode[idx];
+    return (m == SMOOTH_PRED || m == SMOOTH_H_PRED ||
+            m == SMOOTH_V_PRED) ? ANGLE_SMOOTH_EDGE_FLAG : 0;
+}
+
+static inline int sm_uv_flag(const BlockContext *const b, const int idx) {
+    const enum IntraPredMode m = b->uvmode[idx];
+    return (m == SMOOTH_PRED || m == SMOOTH_H_PRED ||
+            m == SMOOTH_V_PRED) ? ANGLE_SMOOTH_EDGE_FLAG : 0;
+}
+
+#endif /* DAV1D_SRC_IPRED_PREPARE_H */