/* * 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 == 8typedef 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 == 16typedef 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_##suffixstatic 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 */