1 files changed, 84 insertions, 0 deletions
diff --git a/third_party/dav1d/src/filmgrain.h b/third_party/dav1d/src/filmgrain.h
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+++ b/third_party/dav1d/src/filmgrain.h
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+/*
+ * Copyright © 2018-2021, 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_FILM_GRAIN_H
+#define DAV1D_SRC_FILM_GRAIN_H
+
+#include "common/bitdepth.h"
+
+#include "src/levels.h"
+
+#define GRAIN_WIDTH 82
+#define GRAIN_HEIGHT 73
+#define BLOCK_SIZE 32
+#if !defined(BITDEPTH) || BITDEPTH == 8
+#define SCALING_SIZE 256
+typedef int8_t entry;
+#else
+#define SCALING_SIZE 4096
+typedef int16_t entry;
+#endif
+
+#define decl_generate_grain_y_fn(name) \
+void (name)(entry buf[][GRAIN_WIDTH], \
+            const Dav1dFilmGrainData *const data HIGHBD_DECL_SUFFIX)
+typedef decl_generate_grain_y_fn(*generate_grain_y_fn);
+
+#define decl_generate_grain_uv_fn(name) \
+void (name)(entry buf[][GRAIN_WIDTH], \
+            const entry buf_y[][GRAIN_WIDTH], \
+            const Dav1dFilmGrainData *const data, const intptr_t uv HIGHBD_DECL_SUFFIX)
+typedef decl_generate_grain_uv_fn(*generate_grain_uv_fn);
+
+#define decl_fgy_32x32xn_fn(name) \
+void (name)(pixel *dst_row, const pixel *src_row, ptrdiff_t stride, \
+            const Dav1dFilmGrainData *data, \
+            size_t pw, const uint8_t scaling[SCALING_SIZE], \
+            const entry grain_lut[][GRAIN_WIDTH], \
+            int bh, int row_num HIGHBD_DECL_SUFFIX)
+typedef decl_fgy_32x32xn_fn(*fgy_32x32xn_fn);
+
+#define decl_fguv_32x32xn_fn(name) \
+void (name)(pixel *dst_row, const pixel *src_row, ptrdiff_t stride, \
+            const Dav1dFilmGrainData *data, size_t pw, \
+            const uint8_t scaling[SCALING_SIZE], \
+            const entry grain_lut[][GRAIN_WIDTH], int bh, int row_num, \
+            const pixel *luma_row, ptrdiff_t luma_stride, \
+            int uv_pl, int is_id HIGHBD_DECL_SUFFIX)
+typedef decl_fguv_32x32xn_fn(*fguv_32x32xn_fn);
+
+typedef struct Dav1dFilmGrainDSPContext {
+    generate_grain_y_fn generate_grain_y;
+    generate_grain_uv_fn generate_grain_uv[3];
+
+    fgy_32x32xn_fn fgy_32x32xn;
+    fguv_32x32xn_fn fguv_32x32xn[3];
+} Dav1dFilmGrainDSPContext;
+
+bitfn_decls(void dav1d_film_grain_dsp_init, Dav1dFilmGrainDSPContext *c);
+
+#endif /* DAV1D_SRC_FILM_GRAIN_H */