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Code Issues Releases Activity

Mark parameter src of vector_clipf() as const

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Originally committed as revision 19729 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2009-08-27 15:38:59 +00:00
parent 0a68cd876e
commit 50e23ae9d3
3 changed files with 5 additions and 5 deletions
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6
libavcodec/dsputil.c
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@ -4102,13 +4102,13 @@ static inline uint32_t clipf_c_one(uint32_t a, uint32_t mini,
else return a; else return a;
} }
static void vector_clipf_c_opposite_sign(float *dst, float *src, float *min, float *max, int len){ static void vector_clipf_c_opposite_sign(float *dst, const float *src, float *min, float *max, int len){
int i; int i;
uint32_t mini = *(uint32_t*)min; uint32_t mini = *(uint32_t*)min;
uint32_t maxi = *(uint32_t*)max; uint32_t maxi = *(uint32_t*)max;
uint32_t maxisign = maxi ^ (1<<31); uint32_t maxisign = maxi ^ (1<<31);
uint32_t *dsti = (uint32_t*)dst; uint32_t *dsti = (uint32_t*)dst;
uint32_t *srci = (uint32_t*)src; const uint32_t *srci = (const uint32_t*)src;
for(i=0; i<len; i+=8) { for(i=0; i<len; i+=8) {
dsti[i + 0] = clipf_c_one(srci[i + 0], mini, maxi, maxisign); dsti[i + 0] = clipf_c_one(srci[i + 0], mini, maxi, maxisign);
dsti[i + 1] = clipf_c_one(srci[i + 1], mini, maxi, maxisign); dsti[i + 1] = clipf_c_one(srci[i + 1], mini, maxi, maxisign);
@ -4120,7 +4120,7 @@ static void vector_clipf_c_opposite_sign(float *dst, float *src, float *min, flo
dsti[i + 7] = clipf_c_one(srci[i + 7], mini, maxi, maxisign); dsti[i + 7] = clipf_c_one(srci[i + 7], mini, maxi, maxisign);
} }
} }
static void vector_clipf_c(float *dst, float *src, float min, float max, int len){ static void vector_clipf_c(float *dst, const float *src, float min, float max, int len){
int i; int i;
if(min < 0 && max > 0) { if(min < 0 && max > 0) {
vector_clipf_c_opposite_sign(dst, src, &min, &max, len); vector_clipf_c_opposite_sign(dst, src, &min, &max, len);

2
libavcodec/dsputil.h
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@ -396,7 +396,7 @@ typedef struct DSPContext {
void (*vector_fmul_window)(float *dst, const float *src0, const float *src1, const float *win, float add_bias, int len); void (*vector_fmul_window)(float *dst, const float *src0, const float *src1, const float *win, float add_bias, int len);
/* assume len is a multiple of 8, and arrays are 16-byte aligned */ /* assume len is a multiple of 8, and arrays are 16-byte aligned */
void (*int32_to_float_fmul_scalar)(float *dst, const int *src, float mul, int len); void (*int32_to_float_fmul_scalar)(float *dst, const int *src, float mul, int len);
void (*vector_clipf)(float *dst /* align 16 */, float *src /* align 16 */, float min, float max, int len /* align 16 */); void (*vector_clipf)(float *dst /* align 16 */, const float *src /* align 16 */, float min, float max, int len /* align 16 */);
/* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767] /* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767]
* simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */ * simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */

2
libavcodec/x86/dsputil_mmx.c
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@ -2346,7 +2346,7 @@ static void int32_to_float_fmul_scalar_sse2(float *dst, const int *src, float mu
); );
} }
static void vector_clipf_sse(float *dst, float *src, float min, float max, static void vector_clipf_sse(float *dst, const float *src, float min, float max,
int len) int len)
{ {
x86_reg i = (len-16)*4; x86_reg i = (len-16)*4;