From 0d5c349ac45a22da4944f5e7447d98c154590d24 Mon Sep 17 00:00:00 2001 From: Mans Rullgard Date: Sat, 2 Jul 2011 11:50:24 +0100 Subject: put_bits: remove ALT_BITSTREAM_WRITER The code for this variant does not compile. Signed-off-by: Mans Rullgard --- libavcodec/put_bits.h | 102 +------------------------------------------------- 1 file changed, 1 insertion(+), 101 deletions(-) (limited to 'libavcodec/put_bits.h') diff --git a/libavcodec/put_bits.h b/libavcodec/put_bits.h index b91e0f8f5a..c10dd818f0 100644 --- a/libavcodec/put_bits.h +++ b/libavcodec/put_bits.h @@ -36,19 +36,10 @@ #include "mathops.h" #include "config.h" -//#define ALT_BITSTREAM_WRITER -//#define ALIGNED_BITSTREAM_WRITER - -/* buf and buf_end must be present and used by every alternative writer. */ typedef struct PutBitContext { -#ifdef ALT_BITSTREAM_WRITER - uint8_t *buf, *buf_end; - int index; -#else uint32_t bit_buf; int bit_left; uint8_t *buf, *buf_ptr, *buf_end; -#endif int size_in_bits; } PutBitContext; @@ -68,14 +59,9 @@ static inline void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_s s->size_in_bits= 8*buffer_size; s->buf = buffer; s->buf_end = s->buf + buffer_size; -#ifdef ALT_BITSTREAM_WRITER - s->index=0; - AV_ZERO32(s->buf); -#else s->buf_ptr = s->buf; s->bit_left=32; s->bit_buf=0; -#endif } /** @@ -83,11 +69,7 @@ static inline void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_s */ static inline int put_bits_count(PutBitContext *s) { -#ifdef ALT_BITSTREAM_WRITER - return s->index; -#else return (s->buf_ptr - s->buf) * 8 + 32 - s->bit_left; -#endif } /** @@ -95,9 +77,6 @@ static inline int put_bits_count(PutBitContext *s) */ static inline void flush_put_bits(PutBitContext *s) { -#ifdef ALT_BITSTREAM_WRITER - align_put_bits(s); -#else #ifndef BITSTREAM_WRITER_LE s->bit_buf<<= s->bit_left; #endif @@ -114,10 +93,9 @@ static inline void flush_put_bits(PutBitContext *s) } s->bit_left=32; s->bit_buf=0; -#endif } -#if defined(ALT_BITSTREAM_WRITER) || defined(BITSTREAM_WRITER_LE) +#ifdef BITSTREAM_WRITER_LE #define align_put_bits align_put_bits_unsupported_here #define ff_put_string ff_put_string_unsupported_here #define ff_copy_bits ff_copy_bits_unsupported_here @@ -147,7 +125,6 @@ void ff_copy_bits(PutBitContext *pb, const uint8_t *src, int length); * Use put_bits32 to write 32 bits. */ static inline void put_bits(PutBitContext *s, int n, unsigned int value) -#ifndef ALT_BITSTREAM_WRITER { unsigned int bit_buf; int bit_left; @@ -187,70 +164,6 @@ static inline void put_bits(PutBitContext *s, int n, unsigned int value) s->bit_buf = bit_buf; s->bit_left = bit_left; } -#else /* ALT_BITSTREAM_WRITER defined */ -{ -# ifdef ALIGNED_BITSTREAM_WRITER -# if ARCH_X86 - __asm__ volatile( - "movl %0, %%ecx \n\t" - "xorl %%eax, %%eax \n\t" - "shrdl %%cl, %1, %%eax \n\t" - "shrl %%cl, %1 \n\t" - "movl %0, %%ecx \n\t" - "shrl $3, %%ecx \n\t" - "andl $0xFFFFFFFC, %%ecx \n\t" - "bswapl %1 \n\t" - "orl %1, (%2, %%ecx) \n\t" - "bswapl %%eax \n\t" - "addl %3, %0 \n\t" - "movl %%eax, 4(%2, %%ecx) \n\t" - : "=&r" (s->index), "=&r" (value) - : "r" (s->buf), "r" (n), "0" (s->index), "1" (value<<(-n)) - : "%eax", "%ecx" - ); -# else - int index= s->index; - uint32_t *ptr= ((uint32_t *)s->buf)+(index>>5); - - value<<= 32-n; - - ptr[0] |= av_be2ne32(value>>(index&31)); - ptr[1] = av_be2ne32(value<<(32-(index&31))); -//if(n>24) printf("%d %d\n", n, value); - index+= n; - s->index= index; -# endif -# else //ALIGNED_BITSTREAM_WRITER -# if ARCH_X86 - __asm__ volatile( - "movl $7, %%ecx \n\t" - "andl %0, %%ecx \n\t" - "addl %3, %%ecx \n\t" - "negl %%ecx \n\t" - "shll %%cl, %1 \n\t" - "bswapl %1 \n\t" - "movl %0, %%ecx \n\t" - "shrl $3, %%ecx \n\t" - "orl %1, (%%ecx, %2) \n\t" - "addl %3, %0 \n\t" - "movl $0, 4(%%ecx, %2) \n\t" - : "=&r" (s->index), "=&r" (value) - : "r" (s->buf), "r" (n), "0" (s->index), "1" (value) - : "%ecx" - ); -# else - int index= s->index; - uint32_t *ptr= (uint32_t*)(((uint8_t *)s->buf)+(index>>3)); - - ptr[0] |= av_be2ne32(value<<(32-n-(index&7) )); - ptr[1] = 0; -//if(n>24) printf("%d %d\n", n, value); - index+= n; - s->index= index; -# endif -# endif //!ALIGNED_BITSTREAM_WRITER -} -#endif static inline void put_sbits(PutBitContext *pb, int n, int32_t value) { @@ -281,11 +194,7 @@ static void av_unused put_bits32(PutBitContext *s, uint32_t value) */ static inline uint8_t* put_bits_ptr(PutBitContext *s) { -#ifdef ALT_BITSTREAM_WRITER - return s->buf + (s->index>>3); -#else return s->buf_ptr; -#endif } /** @@ -295,13 +204,8 @@ static inline uint8_t* put_bits_ptr(PutBitContext *s) static inline void skip_put_bytes(PutBitContext *s, int n) { assert((put_bits_count(s)&7)==0); -#ifdef ALT_BITSTREAM_WRITER - FIXME may need some cleaning of the buffer - s->index += n<<3; -#else assert(s->bit_left==32); s->buf_ptr += n; -#endif } /** @@ -311,13 +215,9 @@ static inline void skip_put_bytes(PutBitContext *s, int n) */ static inline void skip_put_bits(PutBitContext *s, int n) { -#ifdef ALT_BITSTREAM_WRITER - s->index += n; -#else s->bit_left -= n; s->buf_ptr-= 4*(s->bit_left>>5); s->bit_left &= 31; -#endif } /** -- cgit v1.2.3