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avoid silly ring buffer logic (faster with -O2, -O3 is always slower then -O2) 

Originally committed as revision 8354 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-03-12 21:21:12 +00:00
parent 3479b72bc2
commit aa59433af6
1 changed files with 2 additions and 2 deletions
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4
libavutil/sha1.c
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@ -16,7 +16,7 @@ typedef struct AVSHA1 {
/* blk0() and blk() perform the initial expand. */
/* I got the idea of expanding during the round function from SSLeay */
#define blk0(i) (block[i] = be2me_32(block[i]))
#define blk(i) (block[i&15] = rol(block[(i+13)&15]^block[(i+8)&15]^block[(i+2)&15]^block[i&15],1))
#define blk(i) (block[i] = rol(block[i-3]^block[i-8]^block[i-14]^block[i-16],1))
/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y) +blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
@ -29,7 +29,7 @@ typedef struct AVSHA1 {
static void transform(uint32_t state[5], uint8_t buffer[64]){
unsigned int a, b, c, d, e, i;
uint32_t block[16];
uint32_t block[80];
memcpy(block, buffer, 64);