virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
Code Issues Releases Activity

h264: faster fill_rectangle()

Browse Source 
Originally committed as revision 5418 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2006-05-28 22:28:08 +00:00
parent 8c36eaaa94
commit 67a8208695
1 changed files with 60 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

97
libavcodec/h264.c
View File

@ -398,60 +398,83 @@ static always_inline uint32_t pack16to32(int a, int b){
static always_inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){
uint8_t *p= (uint8_t*)vp;
assert(size==1 || size==4);
assert(w<=4);
w *= size;
stride *= size;
assert((((long)vp)&(FFMIN(w, STRIDE_ALIGN)-1)) == 0);
assert((stride&(w-1))==0);
//FIXME check what gcc generates for 64 bit on x86 and possibly write a 32 bit ver of it
if(w==2 && h==2){
*(uint16_t*)(p + 0)=
*(uint16_t*)(p + stride)= size==4 ? val : val*0x0101;
}else if(w==2 && h==4){
*(uint16_t*)(p + 0*stride)=
*(uint16_t*)(p + 1*stride)=
if(w==2){
const uint16_t v= size==4 ? val : val*0x0101;
*(uint16_t*)(p + 0*stride)= v;
if(h==1) return;
*(uint16_t*)(p + 1*stride)= v;
if(h==2) return;
*(uint16_t*)(p + 2*stride)=
*(uint16_t*)(p + 3*stride)= size==4 ? val : val*0x0101;
}else if(w==4 && h==1){
*(uint32_t*)(p + 0*stride)= size==4 ? val : val*0x01010101;
}else if(w==4 && h==2){
*(uint32_t*)(p + 0*stride)=
*(uint32_t*)(p + 1*stride)= size==4 ? val : val*0x01010101;
}else if(w==4 && h==4){
*(uint32_t*)(p + 0*stride)=
*(uint32_t*)(p + 1*stride)=
*(uint16_t*)(p + 3*stride)= v;
}else if(w==4){
const uint32_t v= size==4 ? val : val*0x01010101;
*(uint32_t*)(p + 0*stride)= v;
if(h==1) return;
*(uint32_t*)(p + 1*stride)= v;
if(h==2) return;
*(uint32_t*)(p + 2*stride)=
*(uint32_t*)(p + 3*stride)= size==4 ? val : val*0x01010101;
}else if(w==8 && h==1){
*(uint32_t*)(p + 0)=
*(uint32_t*)(p + 4)= size==4 ? val : val*0x01010101;
}else if(w==8 && h==2){
*(uint32_t*)(p + 0 + 0*stride)=
*(uint32_t*)(p + 4 + 0*stride)=
*(uint32_t*)(p + 0 + 1*stride)=
*(uint32_t*)(p + 4 + 1*stride)= size==4 ? val : val*0x01010101;
}else if(w==8 && h==4){
*(uint64_t*)(p + 0*stride)=
*(uint64_t*)(p + 1*stride)=
*(uint32_t*)(p + 3*stride)= v;
}else if(w==8){
//gcc can't optimize 64bit math on x86_32
#if defined(ARCH_X86_64) || (defined(MP_WORDSIZE) && MP_WORDSIZE >= 64)
const uint64_t v= val*0x0100000001ULL;
*(uint64_t*)(p + 0*stride)= v;
if(h==1) return;
*(uint64_t*)(p + 1*stride)= v;
if(h==2) return;
*(uint64_t*)(p + 2*stride)=
*(uint64_t*)(p + 3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
}else if(w==16 && h==2){
*(uint64_t*)(p + 3*stride)= v;
}else if(w==16){
const uint64_t v= val*0x0100000001ULL;
*(uint64_t*)(p + 0+0*stride)=
*(uint64_t*)(p + 8+0*stride)=
*(uint64_t*)(p + 0+1*stride)=
*(uint64_t*)(p + 8+1*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
}else if(w==16 && h==4){
*(uint64_t*)(p + 0+0*stride)=
*(uint64_t*)(p + 8+0*stride)=
*(uint64_t*)(p + 0+1*stride)=
*(uint64_t*)(p + 8+1*stride)=
*(uint64_t*)(p + 8+1*stride)= v;
if(h==2) return;
*(uint64_t*)(p + 0+2*stride)=
*(uint64_t*)(p + 8+2*stride)=
*(uint64_t*)(p + 0+3*stride)=
*(uint64_t*)(p + 8+3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
*(uint64_t*)(p + 8+3*stride)= v;
#else
*(uint32_t*)(p + 0+0*stride)=
*(uint32_t*)(p + 4+0*stride)= val;
if(h==1) return;
*(uint32_t*)(p + 0+1*stride)=
*(uint32_t*)(p + 4+1*stride)= val;
if(h==2) return;
*(uint32_t*)(p + 0+2*stride)=
*(uint32_t*)(p + 4+2*stride)=
*(uint32_t*)(p + 0+3*stride)=
*(uint32_t*)(p + 4+3*stride)= val;
}else if(w==16){
*(uint32_t*)(p + 0+0*stride)=
*(uint32_t*)(p + 4+0*stride)=
*(uint32_t*)(p + 8+0*stride)=
*(uint32_t*)(p +12+0*stride)=
*(uint32_t*)(p + 0+1*stride)=
*(uint32_t*)(p + 4+1*stride)=
*(uint32_t*)(p + 8+1*stride)=
*(uint32_t*)(p +12+1*stride)= val;
if(h==2) return;
*(uint32_t*)(p + 0+2*stride)=
*(uint32_t*)(p + 4+2*stride)=
*(uint32_t*)(p + 8+2*stride)=
*(uint32_t*)(p +12+2*stride)=
*(uint32_t*)(p + 0+3*stride)=
*(uint32_t*)(p + 4+3*stride)=
*(uint32_t*)(p + 8+3*stride)=
*(uint32_t*)(p +12+3*stride)= val;
#endif
}else
assert(0);
assert(h==4);
}
static void fill_caches(H264Context *h, int mb_type, int for_deblock){