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dsputil: mark source of diff_bytes as const. 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-03-15 22:16:25 +01:00
parent 1bc85fb32d
commit dd2631a6df
3 changed files with 3 additions and 3 deletions
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2
libavcodec/dsputil.c
View File

@ -1921,7 +1921,7 @@ static void add_bytes_c(uint8_t *dst, uint8_t *src, int w){
dst[i+0] += src[i+0];
}
static void diff_bytes_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w){
static void diff_bytes_c(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w){
long i;
#if !HAVE_FAST_UNALIGNED
if((long)src2 & (sizeof(long)-1)){

2
libavcodec/dsputil.h
View File

@ -378,7 +378,7 @@ typedef struct DSPContext {
/* huffyuv specific */
void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
void (*diff_bytes)(uint8_t *dst/*align 16*/, const uint8_t *src1/*align 16*/, const uint8_t *src2/*align 1*/,int w);
/**
* subtract huffyuv's variant of median prediction
* note, this might read from src1[-1], src2[-1]

2
libavcodec/x86/dsputilenc_mmx.c
View File

@ -821,7 +821,7 @@ static int vsad16_mmx2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, i
}
#undef SUM
static void diff_bytes_mmx(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w){
static void diff_bytes_mmx(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w){
x86_reg i=0;
__asm__ volatile(
"1: \n\t"