Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

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

1 files changed, 176 insertions, 0 deletions

diff --git a/third_party/dav1d/src/refmvs.h b/third_party/dav1d/src/refmvs.h
new file mode 100644
index 0000000000..70dc9678dd
--- /dev/null
+++ b/third_party/dav1d/src/refmvs.h
@@ -0,0 +1,176 @@
+/*
+ * Copyright © 2020, VideoLAN and dav1d authors
+ * Copyright © 2020, 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_REF_MVS_H
+#define DAV1D_SRC_REF_MVS_H
+
+#include <stdint.h>
+
+#include "dav1d/headers.h"
+
+#include "common/intops.h"
+
+#include "src/intra_edge.h"
+#include "src/tables.h"
+
+#define INVALID_MV 0x80008000
+
+PACKED(typedef struct refmvs_temporal_block {
+    mv mv;
+    int8_t ref;
+}) refmvs_temporal_block;
+
+typedef union refmvs_refpair {
+    int8_t ref[2]; // [0] = 0: intra=1, [1] = -1: comp=0
+    uint16_t pair;
+} refmvs_refpair;
+
+typedef union refmvs_mvpair {
+    mv mv[2];
+    uint64_t n;
+} refmvs_mvpair;
+
+PACKED(typedef struct refmvs_block {
+    refmvs_mvpair mv;
+    refmvs_refpair ref;
+    uint8_t bs, mf; // 1 = globalmv+affine, 2 = newmv
+}) ALIGN(refmvs_block, 4);
+
+typedef struct refmvs_frame {
+    const Dav1dFrameHeader *frm_hdr;
+    int iw4, ih4, iw8, ih8;
+    int sbsz;
+    int use_ref_frame_mvs;
+    uint8_t sign_bias[7], mfmv_sign[7];
+    int8_t pocdiff[7];
+    uint8_t mfmv_ref[3];
+    int mfmv_ref2cur[3];
+    int mfmv_ref2ref[3][7];
+    int n_mfmvs;
+
+    refmvs_temporal_block *rp;
+    /*const*/ refmvs_temporal_block *const *rp_ref;
+    refmvs_temporal_block *rp_proj;
+    ptrdiff_t rp_stride;
+
+    refmvs_block *r; // 35 x r_stride memory
+    ptrdiff_t r_stride;
+    int n_tile_rows, n_tile_threads, n_frame_threads;
+} refmvs_frame;
+
+typedef struct refmvs_tile {
+    const refmvs_frame *rf;
+    refmvs_block *r[32 + 5];
+    refmvs_temporal_block *rp_proj;
+    struct {
+        int start, end;
+    } tile_col, tile_row;
+} refmvs_tile;
+
+typedef struct refmvs_candidate {
+    refmvs_mvpair mv;
+    int weight;
+} refmvs_candidate;
+
+// initialize temporal MVs; this can be done in any configuration, e.g. one
+// tile/sbrow at a time, where col_{start,end}8 are the tile boundaries; or
+// it can just be for the whole frame's sbrow, where col_{start,end}8 are the
+// frame boundaries. row_{start,end}8 are the superblock row boundaries.
+#define decl_load_tmvs_fn(name) \
+void (name)(const refmvs_frame *rf, int tile_row_idx, \
+            int col_start8, int col_end8, int row_start8, int row_end8)
+typedef decl_load_tmvs_fn(*load_tmvs_fn);
+
+#define decl_save_tmvs_fn(name) \
+void (name)(refmvs_temporal_block *rp, const ptrdiff_t stride, \
+            refmvs_block *const *const rr, const uint8_t *const ref_sign, \
+            int col_end8, int row_end8, int col_start8, int row_start8)
+typedef decl_save_tmvs_fn(*save_tmvs_fn);
+
+#define decl_splat_mv_fn(name) \
+void (name)(refmvs_block **rr, const refmvs_block *rmv, int bx4, int bw4, int bh4)
+typedef decl_splat_mv_fn(*splat_mv_fn);
+
+typedef struct Dav1dRefmvsDSPContext {
+    load_tmvs_fn load_tmvs;
+    save_tmvs_fn save_tmvs;
+    splat_mv_fn splat_mv;
+} Dav1dRefmvsDSPContext;
+
+// call once per frame thread
+void dav1d_refmvs_init(refmvs_frame *rf);
+void dav1d_refmvs_clear(refmvs_frame *rf);
+
+// call once per frame
+int dav1d_refmvs_init_frame(refmvs_frame *rf,
+                            const Dav1dSequenceHeader *seq_hdr,
+                            const Dav1dFrameHeader *frm_hdr,
+                            const unsigned ref_poc[7],
+                            refmvs_temporal_block *rp,
+                            const unsigned ref_ref_poc[7][7],
+                            /*const*/ refmvs_temporal_block *const rp_ref[7],
+                            int n_tile_threads, int n_frame_threads);
+
+// cache the current tile/sbrow (or frame/sbrow)'s projectable motion vectors
+// into buffers for use in future frame's temporal MV prediction
+static inline void dav1d_refmvs_save_tmvs(const Dav1dRefmvsDSPContext *const dsp,
+                                          const refmvs_tile *const rt,
+                                          const int col_start8, int col_end8,
+                                          const int row_start8, int row_end8)
+{
+    const refmvs_frame *const rf = rt->rf;
+
+    assert(row_start8 >= 0);
+    assert((unsigned) (row_end8 - row_start8) <= 16U);
+    row_end8 = imin(row_end8, rf->ih8);
+    col_end8 = imin(col_end8, rf->iw8);
+
+    const ptrdiff_t stride = rf->rp_stride;
+    const uint8_t *const ref_sign = rf->mfmv_sign;
+    refmvs_temporal_block *rp = &rf->rp[row_start8 * stride];
+
+    dsp->save_tmvs(rp, stride, rt->r + 6, ref_sign,
+                   col_end8, row_end8, col_start8, row_start8);
+}
+
+// initialize tile boundaries and refmvs_block pointers for one tile/sbrow
+void dav1d_refmvs_tile_sbrow_init(refmvs_tile *rt, const refmvs_frame *rf,
+                                  int tile_col_start4, int tile_col_end4,
+                                  int tile_row_start4, int tile_row_end4,
+                                  int sby, int tile_row_idx, int pass);
+
+// call for each block
+void dav1d_refmvs_find(const refmvs_tile *rt,
+                       refmvs_candidate mvstack[8], int *cnt,
+                       int *ctx, const refmvs_refpair ref, enum BlockSize bs,
+                       enum EdgeFlags edge_flags, int by4, int bx4);
+
+void dav1d_refmvs_dsp_init(Dav1dRefmvsDSPContext *dsp);
+void dav1d_refmvs_dsp_init_arm(Dav1dRefmvsDSPContext *dsp);
+void dav1d_refmvs_dsp_init_x86(Dav1dRefmvsDSPContext *dsp);
+
+#endif /* DAV1D_SRC_REF_MVS_H */