| 25,9 → 25,6 |
|---|
| #include "funcs.h" |
| #include "y.tab.h" |
| |
| // Strict compatibility to Filter Factory |
| //#define YUV_FILTER_FACTORY |
| |
| extern value_type var[]; |
| extern int nplanes,varused[],cnvused; |
| extern struct node *tree[]; |
| 69,8 → 66,8 |
|---|
| var['Y'] = FILTER_RECT(pb).bottom - FILTER_RECT(pb).top; |
| } |
| var['Z'] = nplanes; |
| var['D'] = 1024; |
| var['M'] = ff_c2m(var['X'],var['Y'])/2; |
| var['D'] = ff_D(); |
| var['M'] = ff_M(); |
| |
| /* initialise flags for tracking special variable usage */ |
| for(i = 0; i < 0x100; i++) |
| 114,30 → 111,21 |
|---|
| var['b'] = nplanes > 2 ? inp[2] : 0; |
| var['a'] = nplanes > 3 ? inp[3] : 0; |
| |
| #ifdef YUV_FILTER_FACTORY |
| if(varused['i']) var['i'] = (( 76L*var['r'])+(150L*var['g'])+( 29L*var['b']))/256; // range: [0..254] |
| if(varused['u']) var['u'] = ((-19L*var['r'])+(-37L*var['g'])+( 56L*var['b']))/256; // range: [-55..55] |
| if(varused['v']) var['v'] = (( 78L*var['r'])+(-65L*var['g'])+(-13L*var['b']))/256; // range: [-77..77] |
| #else |
| // These formulas are more accurate, e.g. pure white has now i=255 instead of 254 |
| |
| // For Y, the definition is Y := 0.299R + 0.587G + 0.114B |
| if(varused['i']) var['i'] = (( 299L*var['r'])+( 587L*var['g'])+( 114L*var['b']))/1000; // range: [0..255] |
| if(varused['i']) var['i'] = ff_i(); |
| |
| // For U, the definition is U := (B-Y) * 0.493; the range would be [-111..111] |
| // Filter Factory divided it by 2, resulting in a range of [-55..55]. |
| // Due to compatibility reasons, we adopt that behavior. |
| if(varused['u']) var['u'] = ((-147407L*var['r'])+(-289391L*var['g'])+( 436798L*var['b']))/2000000; // range: [-55..55] |
| if(varused['u']) var['u'] = ff_u(); |
| |
| // For V, the definition is V := (R-Y) * 0.877; the range would be [-156..156] |
| // Filter Factory divided it by 2, resulting in a range of [-78..78]. |
| // Due to compatibility reasons, we adopt that behavior. |
| if(varused['v']) var['v'] = (( 614777L*var['r'])+(-514799L*var['g'])+(- 99978L*var['b']))/2000000; // range: [-78..78] |
| #endif |
| |
| if(varused['v']) var['v'] = ff_v(); |
| } |
| if(varused['d']) var['d'] = ff_c2d_negated(var['X']/2 - var['x'], var['Y']/2 - var['y']); |
| if(varused['m']) var['m'] = ff_c2m(var['X']/2 - var['x'], var['Y']/2 - var['y']); |
| if(varused['d']) var['d'] = ff_d(); |
| if(varused['m']) var['m'] = ff_m(); |
| |
| for(k = 0; k < nplanes; ++k){ |
| if(needinput) |