diff options
Diffstat (limited to 'thirdparty/libwebp/src/utils/bit_reader_utils.h')
| -rw-r--r-- | thirdparty/libwebp/src/utils/bit_reader_utils.h | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/thirdparty/libwebp/src/utils/bit_reader_utils.h b/thirdparty/libwebp/src/utils/bit_reader_utils.h index de810d402a..199dacf224 100644 --- a/thirdparty/libwebp/src/utils/bit_reader_utils.h +++ b/thirdparty/libwebp/src/utils/bit_reader_utils.h @@ -21,6 +21,27 @@ #endif #include "src/webp/types.h" +// Warning! This macro triggers quite some MACRO wizardry around func signature! +#if !defined(BITTRACE) +#define BITTRACE 0 // 0 = off, 1 = print bits, 2 = print bytes +#endif + +#if (BITTRACE > 0) +struct VP8BitReader; +extern void BitTrace(const struct VP8BitReader* const br, const char label[]); +#define BT_TRACK(br) BitTrace(br, label) +#define VP8Get(BR, L) VP8GetValue(BR, 1, L) +#else +#define BT_TRACK(br) +// We'll REMOVE the 'const char label[]' from all signatures and calls (!!): +#define VP8GetValue(BR, N, L) VP8GetValue(BR, N) +#define VP8Get(BR, L) VP8GetValue(BR, 1, L) +#define VP8GetSignedValue(BR, N, L) VP8GetSignedValue(BR, N) +#define VP8GetBit(BR, P, L) VP8GetBit(BR, P) +#define VP8GetBitAlt(BR, P, L) VP8GetBitAlt(BR, P) +#define VP8GetSigned(BR, V, L) VP8GetSigned(BR, V) +#endif + #ifdef __cplusplus extern "C" { #endif @@ -102,17 +123,15 @@ void VP8BitReaderSetBuffer(VP8BitReader* const br, void VP8RemapBitReader(VP8BitReader* const br, ptrdiff_t offset); // return the next value made of 'num_bits' bits -uint32_t VP8GetValue(VP8BitReader* const br, int num_bits); -static WEBP_INLINE uint32_t VP8Get(VP8BitReader* const br) { - return VP8GetValue(br, 1); -} +uint32_t VP8GetValue(VP8BitReader* const br, int num_bits, const char label[]); // return the next value with sign-extension. -int32_t VP8GetSignedValue(VP8BitReader* const br, int num_bits); +int32_t VP8GetSignedValue(VP8BitReader* const br, int num_bits, + const char label[]); // bit_reader_inl.h will implement the following methods: -// static WEBP_INLINE int VP8GetBit(VP8BitReader* const br, int prob) -// static WEBP_INLINE int VP8GetSigned(VP8BitReader* const br, int v) +// static WEBP_INLINE int VP8GetBit(VP8BitReader* const br, int prob, ...) +// static WEBP_INLINE int VP8GetSigned(VP8BitReader* const br, int v, ...) // and should be included by the .c files that actually need them. // This is to avoid recompiling the whole library whenever this file is touched, // and also allowing platform-specific ad-hoc hacks. |