ref: 3a6a55d8d5883cf094bc3a140e568420014bbf47
dir: /include/common/bitdepth.h/
/* * 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 */