1 files changed, 93 insertions, 0 deletions
diff --git a/third_party/dav1d/include/common/bitdepth.h b/third_party/dav1d/include/common/bitdepth.h
new file mode 100644
index 0000000000..88a822aab2
--- /dev/null
+++ b/third_party/dav1d/include/common/bitdepth.h
@@ -0,0 +1,93 @@
+/*
+ * 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_COMMON_BITDEPTH_H
+#define DAV1D_COMMON_BITDEPTH_H
+
+#include <stdint.h>
+#include <string.h>
+
+#include "common/attributes.h"
+
+#if !defined(BITDEPTH)
+typedef void pixel;
+typedef void coef;
+#define HIGHBD_DECL_SUFFIX /* nothing */
+#define HIGHBD_CALL_SUFFIX /* nothing */
+#define HIGHBD_TAIL_SUFFIX /* nothing */
+#elif BITDEPTH == 8
+typedef uint8_t pixel;
+typedef int16_t coef;
+#define PIXEL_TYPE uint8_t
+#define COEF_TYPE int16_t
+#define pixel_copy memcpy
+#define pixel_set memset
+#define iclip_pixel iclip_u8
+#define PIX_HEX_FMT "%02x"
+#define bitfn(x) x##_8bpc
+#define BF(x, suffix) x##_8bpc_##suffix
+#define PXSTRIDE(x) (x)
+#define highbd_only(x)
+#define HIGHBD_DECL_SUFFIX /* nothing */
+#define HIGHBD_CALL_SUFFIX /* nothing */
+#define HIGHBD_TAIL_SUFFIX /* nothing */
+#define bitdepth_from_max(x) 8
+#define BITDEPTH_MAX 0xff
+#elif BITDEPTH == 16
+typedef uint16_t pixel;
+typedef int32_t coef;
+#define PIXEL_TYPE uint16_t
+#define COEF_TYPE int32_t
+#define pixel_copy(a, b, c) memcpy(a, b, (c) << 1)
+static inline void pixel_set(pixel *const dst, const int val, const int num) {
+    for (int n = 0; n < num; n++)
+        dst[n] = val;
+}
+#define PIX_HEX_FMT "%03x"
+#define iclip_pixel(x) iclip(x, 0, bitdepth_max)
+#define HIGHBD_DECL_SUFFIX , const int bitdepth_max
+#define HIGHBD_CALL_SUFFIX , f->bitdepth_max
+#define HIGHBD_TAIL_SUFFIX , bitdepth_max
+#define bitdepth_from_max(bitdepth_max) (32 - clz(bitdepth_max))
+#define BITDEPTH_MAX bitdepth_max
+#define bitfn(x) x##_16bpc
+#define BF(x, suffix) x##_16bpc_##suffix
+static inline ptrdiff_t PXSTRIDE(const ptrdiff_t x) {
+    assert(!(x & 1));
+    return x >> 1;
+}
+#define highbd_only(x) x
+#else
+#error invalid value for bitdepth
+#endif
+#define bytefn(x) bitfn(x)
+
+#define bitfn_decls(name, ...) \
+name##_8bpc(__VA_ARGS__); \
+name##_16bpc(__VA_ARGS__)
+
+#endif /* DAV1D_COMMON_BITDEPTH_H */