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Issue #1939 - Part 2: Update libwebp source.

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Job Bautista 2022-06-26 12:52:04 +08:00 • committed by roytam1
commit 8038505d6c
127 changed files with 34059 additions and 775 deletions
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33
media/libwebp/utils/bit_reader_utils.h
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@ -21,6 +21,27 @@
#endif
#include "../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
@ -92,17 +113,15 @@ 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.