93 lines
3.3 KiB
C
93 lines
3.3 KiB
C
/*
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* Copyright © 2018, VideoLAN and dav1d authors
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* Copyright © 2018, Two Orioles, LLC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef DAV1D_COMMON_BITDEPTH_H
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#define DAV1D_COMMON_BITDEPTH_H
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#include <stdint.h>
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#include <string.h>
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#include "common/attributes.h"
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#if !defined(BITDEPTH)
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typedef uint8_t pixel; /* can't be void due to pointer-to-array usage */
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typedef void coef;
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#define HIGHBD_DECL_SUFFIX /* nothing */
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#define HIGHBD_CALL_SUFFIX /* nothing */
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#define HIGHBD_TAIL_SUFFIX /* nothing */
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#elif BITDEPTH == 8
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typedef uint8_t pixel;
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typedef int16_t coef;
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#define PIXEL_TYPE uint8_t
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#define COEF_TYPE int16_t
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#define pixel_copy memcpy
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#define pixel_set memset
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#define iclip_pixel iclip_u8
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#define PIX_HEX_FMT "%02x"
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#define bitfn(x) x##_8bpc
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#define BF(x, suffix) x##_8bpc_##suffix
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#define PXSTRIDE(x) (x)
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#define highbd_only(x)
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#define HIGHBD_DECL_SUFFIX /* nothing */
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#define HIGHBD_CALL_SUFFIX /* nothing */
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#define HIGHBD_TAIL_SUFFIX /* nothing */
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#define bitdepth_from_max(x) 8
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#define BITDEPTH_MAX 0xff
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#elif BITDEPTH == 16
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typedef uint16_t pixel;
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typedef int32_t coef;
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#define PIXEL_TYPE uint16_t
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#define COEF_TYPE int32_t
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#define pixel_copy(a, b, c) memcpy(a, b, (c) << 1)
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static inline void pixel_set(pixel *const dst, const int val, const int num) {
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for (int n = 0; n < num; n++)
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dst[n] = val;
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}
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#define PIX_HEX_FMT "%03x"
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#define iclip_pixel(x) iclip(x, 0, bitdepth_max)
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#define HIGHBD_DECL_SUFFIX , const int bitdepth_max
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#define HIGHBD_CALL_SUFFIX , f->bitdepth_max
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#define HIGHBD_TAIL_SUFFIX , bitdepth_max
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#define bitdepth_from_max(bitdepth_max) (32 - clz(bitdepth_max))
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#define BITDEPTH_MAX bitdepth_max
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#define bitfn(x) x##_16bpc
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#define BF(x, suffix) x##_16bpc_##suffix
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static inline ptrdiff_t PXSTRIDE(const ptrdiff_t x) {
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assert(!(x & 1));
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return x >> 1;
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}
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#define highbd_only(x) x
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#else
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#error invalid value for bitdepth
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#endif
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#define bytefn(x) bitfn(x)
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#define bitfn_decls(name, ...) \
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name##_8bpc(__VA_ARGS__); \
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name##_16bpc(__VA_ARGS__)
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#endif /* DAV1D_COMMON_BITDEPTH_H */
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