@ -12,24 +12,26 @@ pub struct Mask<'core> {
pub luma_scaling : f32 ,
}
lazy_static ! {
static ref FLOAT_RANGE : Vec < f32 > = {
[ 0 f32 ; 256 ]
. iter ( )
. enumerate ( )
. map ( | ( i , _f ) | ( i as f32 ) / 256.0 )
. collect ( )
} ;
}
#[ rustfmt::skip ]
static FLOAT_RANGE : [ f32 ; 256 ] = [ 0.0 , 0.003921569 , 0.007843138 , 0.011764706 , 0.015686275 , 0.019607844 , 0.023529412 , 0.02745098 , 0.03137255 , 0.03529412 , 0.039215688 , 0.043137256 , 0.047058824 , 0.050980393 , 0.05490196 , 0.05882353 , 0.0627451 , 0.06666667 , 0.07058824 , 0.07450981 , 0.078431375 , 0.08235294 , 0.08627451 , 0.09019608 , 0.09411765 , 0.09803922 , 0.101960786 , 0.105882354 , 0.10980392 , 0.11372549 , 0.11764706 , 0.12156863 , 0.1254902 , 0.12941177 , 0.13333334 , 0.13725491 , 0.14117648 , 0.14509805 , 0.14901961 , 0.15294118 , 0.15686275 , 0.16078432 , 0.16470589 , 0.16862746 , 0.17254902 , 0.1764706 , 0.18039216 , 0.18431373 , 0.1882353 , 0.19215687 , 0.19607843 , 0.2 , 0.20392157 , 0.20784314 , 0.21176471 , 0.21568628 , 0.21960784 , 0.22352941 , 0.22745098 , 0.23137255 , 0.23529412 , 0.23921569 , 0.24313726 , 0.24705882 , 0.2509804 , 0.25490198 , 0.25882354 , 0.2627451 , 0.26666668 , 0.27058825 , 0.27450982 , 0.2784314 , 0.28235295 , 0.28627452 , 0.2901961 , 0.29411766 , 0.29803923 , 0.3019608 , 0.30588236 , 0.30980393 , 0.3137255 , 0.31764707 , 0.32156864 , 0.3254902 , 0.32941177 , 0.33333334 , 0.3372549 , 0.34117648 , 0.34509805 , 0.34901962 , 0.3529412 , 0.35686275 , 0.36078432 , 0.3647059 , 0.36862746 , 0.37254903 , 0.3764706 , 0.38039216 , 0.38431373 , 0.3882353 , 0.39215687 , 0.39607844 , 0.4 , 0.40392157 , 0.40784314 , 0.4117647 , 0.41568628 , 0.41960785 , 0.42352942 , 0.42745098 , 0.43137255 , 0.43529412 , 0.4392157 , 0.44313726 , 0.44705883 , 0.4509804 , 0.45490196 , 0.45882353 , 0.4627451 , 0.46666667 , 0.47058824 , 0.4745098 , 0.47843137 , 0.48235294 , 0.4862745 , 0.49019608 , 0.49411765 , 0.49803922 , 0.5019608 , 0.5058824 , 0.50980395 , 0.5137255 , 0.5176471 , 0.52156866 , 0.5254902 , 0.5294118 , 0.53333336 , 0.5372549 , 0.5411765 , 0.54509807 , 0.54901963 , 0.5529412 , 0.5568628 , 0.56078434 , 0.5647059 , 0.5686275 , 0.57254905 , 0.5764706 , 0.5803922 , 0.58431375 , 0.5882353 , 0.5921569 , 0.59607846 , 0.6 , 0.6039216 , 0.60784316 , 0.6117647 , 0.6156863 , 0.61960787 , 0.62352943 , 0.627451 , 0.6313726 , 0.63529414 , 0.6392157 , 0.6431373 , 0.64705884 , 0.6509804 , 0.654902 , 0.65882355 , 0.6627451 , 0.6666667 , 0.67058825 , 0.6745098 , 0.6784314 , 0.68235296 , 0.6862745 , 0.6901961 , 0.69411767 , 0.69803923 , 0.7019608 , 0.7058824 , 0.70980394 , 0.7137255 , 0.7176471 , 0.72156864 , 0.7254902 , 0.7294118 , 0.73333335 , 0.7372549 , 0.7411765 , 0.74509805 , 0.7490196 , 0.7529412 , 0.75686276 , 0.7607843 , 0.7647059 , 0.76862746 , 0.77254903 , 0.7764706 , 0.78039217 , 0.78431374 , 0.7882353 , 0.7921569 , 0.79607844 , 0.8 , 0.8039216 , 0.80784315 , 0.8117647 , 0.8156863 , 0.81960785 , 0.8235294 , 0.827451 , 0.83137256 , 0.8352941 , 0.8392157 , 0.84313726 , 0.84705883 , 0.8509804 , 0.85490197 , 0.85882354 , 0.8627451 , 0.8666667 , 0.87058824 , 0.8745098 , 0.8784314 , 0.88235295 , 0.8862745 , 0.8901961 , 0.89411765 , 0.8980392 , 0.9019608 , 0.90588236 , 0.9098039 , 0.9137255 , 0.91764706 , 0.92156863 , 0.9254902 , 0.92941177 , 0.93333334 , 0.9372549 , 0.9411765 , 0.94509804 , 0.9490196 , 0.9529412 , 0.95686275 , 0.9607843 , 0.9647059 , 0.96862745 , 0.972549 , 0.9764706 , 0.98039216 , 0.9843137 , 0.9882353 , 0.99215686 , 0.99607843 , 1.0 ] ;
#[ inline ]
fn get_mask_value ( x : f32 , y : f32 , luma_scaling : f32 ) -> f32 {
pub fn get_mask_value ( x : f32 , luma_scaling : f32 ) -> f32 {
f32 ::powf (
1.0 - ( x * ( 1.124 + x * ( - 9.466 + x * ( 36.624 + x * ( - 45.47 + x * 18.188 ) ) ) ) ) ,
( y * y ) * luma_scaling ,
1.0 - ( x
* ( x . mul_add (
x . mul_add ( x . mul_add ( x . mul_add ( 18.188 , - 45.47 ) , 36.624 ) , - 9.466 ) ,
1.124 ,
) ) ) ,
luma_scaling ,
)
}
#[ inline ]
pub fn get_mask_value_clamping ( x : f32 , luma_scaling : f32 ) -> f32 {
get_mask_value ( x . min ( 1.0 ) . max ( 0.0 ) , luma_scaling )
}
macro_rules! from_property {
( $prop : expr ) = > {
match $prop {
@ -41,17 +43,11 @@ macro_rules! from_property {
macro_rules! int_filter {
( $type :ty , $fname :ident ) = > {
fn $fname (
frame : & mut FrameRefMut ,
src_frame : FrameRef ,
depth : u8 ,
average : f32 ,
luma_scaling : f32 ,
) {
fn $fname ( frame : & mut FrameRefMut , src_frame : FrameRef , depth : u8 , luma_scaling : f32 ) {
let max = ( ( 1 < < depth ) - 1 ) as f32 ;
let lut : Vec < $type > = FLOAT_RANGE
. iter ( )
. map ( | x | ( get_mask_value ( * x , average, luma_scaling) * max ) as $type )
. map ( | x | ( get_mask_value ( * x , luma_scaling ) * max ) as $type )
. collect ( ) ;
for row in 0 .. frame . height ( 0 ) {
for ( pixel , src_pixel ) in frame
@ -59,7 +55,7 @@ macro_rules! int_filter {
. iter_mut ( )
. zip ( src_frame . plane_row ::< $type > ( 0 , row ) )
{
let i = ( src_pixel . clone ( ) > > ( depth - 8 ) ) as usize ;
let i = ( src_pixel > > ( depth - 8 ) ) as usize ;
unsafe {
ptr ::write ( pixel , lut [ i ] . clone ( ) ) ;
}
@ -69,21 +65,27 @@ macro_rules! int_filter {
} ;
}
fn filter_for_float ( frame : & mut FrameRefMut , src_frame : FrameRef , average : f32 , luma_scaling : f32 ) {
let lut : Vec < f32 > = FLOAT_RANGE
. iter ( )
. map ( | x | get_mask_value ( * x , average , luma_scaling ) )
. collect ( ) ;
fn filter_for_float ( frame : & mut FrameRefMut , src_frame : FrameRef , luma_scaling : f32 ) {
for row in 0 .. frame . height ( 0 ) {
for ( pixel , src_pixel ) in frame
frame
. plane_row_mut ::< f32 > ( 0 , row )
. iter_mut ( )
. zip ( src_frame . plane_row ::< f32 > ( 0 , row ) . iter ( ) )
{
unsafe {
ptr ::write ( pixel , lut [ ( src_pixel * 255.99 f32 ) as usize ] ) ;
}
}
. zip ( src_frame . plane_row ::< f32 > ( 0 , row ) )
. for_each ( | ( pixel , src_pixel ) | unsafe {
ptr ::write ( pixel , get_mask_value ( * src_pixel , luma_scaling ) ) ;
} ) ;
}
}
fn filter_for_float_clamping ( frame : & mut FrameRefMut , src_frame : FrameRef , luma_scaling : f32 ) {
for row in 0 .. frame . height ( 0 ) {
frame
. plane_row_mut ::< f32 > ( 0 , row )
. iter_mut ( )
. zip ( src_frame . plane_row ::< f32 > ( 0 , row ) )
. for_each ( | ( pixel , src_pixel ) | unsafe {
ptr ::write ( pixel , get_mask_value_clamping ( * src_pixel , luma_scaling ) ) ;
} ) ;
}
}
@ -143,7 +145,8 @@ impl<'core> Filter<'core> for Mask<'core> {
let src_frame = self . source . get_frame_filter ( context , n ) . ok_or_else ( | | {
format_err ! ( "Could not retrieve source frame. This shouldn’ )
} ) ? ;
let average = match src_frame . props ( ) . get ::< f64 > ( "PlaneStatsAverage" ) {
let props = src_frame . props ( ) ;
let average = match props . get ::< f64 > ( "PlaneStatsAverage" ) {
Ok ( average ) = > average as f32 ,
Err ( _ ) = > bail ! ( format! (
"{}: you need to run std.PlaneStats on the clip before calling this function." ,
@ -157,15 +160,30 @@ impl<'core> Filter<'core> for Mask<'core> {
match depth {
0 ..= 8 = > {
int_filter ! ( u8 , filter_8bit ) ;
filter_8bit ( & mut frame , src_frame , depth , average , self . luma_scaling )
filter_8bit (
& mut frame ,
src_frame ,
depth ,
calc_luma_scaling ( average , self . luma_scaling ) ,
)
}
9 ..= 16 = > {
int_filter ! ( u16 , filter_16bit ) ;
filter_16bit ( & mut frame , src_frame , depth , average , self . luma_scaling )
filter_16bit (
& mut frame ,
src_frame ,
depth ,
calc_luma_scaling ( average , self . luma_scaling ) ,
)
}
17 ..= 32 = > {
int_filter ! ( u32 , filter_32bit ) ;
filter_32bit ( & mut frame , src_frame , depth , average , self . luma_scaling )
filter_32bit (
& mut frame ,
src_frame ,
depth ,
calc_luma_scaling ( average , self . luma_scaling ) ,
)
}
_ = > bail ! ( format! (
"{}: input depth {} not supported" ,
@ -174,25 +192,96 @@ impl<'core> Filter<'core> for Mask<'core> {
}
}
SampleType ::Float = > {
if let Err ( e ) = verify_input_range ( & src_frame . props ( ) ) {
bail ! ( e ) ;
// If the input has pixel values outside of the valid range (0-1),
// those might also be out of range in the output.
// We use the min/max props to determine if output clamping is necessary.
let max = props
. get ::< f64 > ( "PlaneStatsMax" )
. expect ( & format! ( "{}: no PlaneStatsMax in frame props" , PLUGIN_NAME ) ) ;
let min = props
. get ::< f64 > ( "PlaneStatsMin" )
. expect ( & format! ( "{}: no PlaneStatsMin in frame props" , PLUGIN_NAME ) ) ;
if max > 1.0 | | min < 0.0 {
filter_for_float_clamping (
& mut frame ,
src_frame ,
calc_luma_scaling ( average , self . luma_scaling ) ,
) ;
} else {
filter_for_float (
& mut frame ,
src_frame ,
calc_luma_scaling ( average , self . luma_scaling ) ,
) ;
}
filter_for_float ( & mut frame , src_frame , average , self . luma_scaling ) ;
}
}
Ok ( frame . into ( ) )
}
}
fn verify_input_range < ' a > ( props : & vapoursynth ::map ::MapRef < ' a , ' a > ) -> Result < ( ) , String > {
let max = props . get ::< f64 > ( "PlaneStatsMax" ) . unwrap_or ( 1.0 ) ;
let min = props . get ::< f64 > ( "PlaneStatsMin" ) . unwrap_or ( 0.0 ) ;
if min < 0.0 | | max > 1.0 {
return Err ( format! (
" { } : found invalid input . Some pixels are outside of the valid range .
You probably used a filter that operates on limited range without clipping properly , e . g . edgefixer , before converting to float .
This can be fixed by clipping all pixels to ( 0 , 1 ) with Expr or converting to an integer format . " , PLUGIN_NAME
) ) ;
pub fn calc_luma_scaling ( average : f32 , luma_scaling : f32 ) -> f32 {
let average = average . min ( 1.0 ) . max ( 0.0 ) ;
average * average * luma_scaling
}
#[ cfg(test) ]
mod tests {
use super ::* ;
// Just in case this isn’
#[ rustfmt::skip ]
static EXPECTED_MASK_02 : [ f32 ; 256 ] = [ 1.0 , 0.998292 , 0.99669147 , 0.99519384 , 0.9937948 , 0.99249005 , 0.99127513 , 0.99014574 , 0.98909765 , 0.98812664 , 0.9872284 , 0.9863988 , 0.98563385 , 0.9849295 , 0.9842816 , 0.98368645 , 0.9831401 , 0.9826388 , 0.9821788 , 0.9817565 , 0.98136836 , 0.98101085 , 0.98068064 , 0.98037434 , 0.9800887 , 0.97982067 , 0.979567 , 0.97932476 , 0.9790909 , 0.9788629 , 0.97863764 , 0.97841257 , 0.97818506 , 0.9779526 , 0.9777127 , 0.977463 , 0.97720116 , 0.97692496 , 0.97663224 , 0.97632086 , 0.97598886 , 0.9756343 , 0.9752552 , 0.97484976 , 0.97441626 , 0.973953 , 0.9734583 , 0.97293067 , 0.9723685 , 0.97177035 , 0.9711349 , 0.9704607 , 0.96974653 , 0.96899116 , 0.9681933 , 0.9673519 , 0.9664658 , 0.965534 , 0.9645555 , 0.9635293 , 0.96245456 , 0.9613303 , 0.96015584 , 0.9589302 , 0.9576528 , 0.9563228 , 0.95493966 , 0.9535026 , 0.9520111 , 0.95046455 , 0.9488624 , 0.9472042 , 0.94548935 , 0.94371754 , 0.9418882 , 0.94000113 , 0.9380558 , 0.936052 , 0.93398947 , 0.9318677 , 0.9296866 , 0.9274459 , 0.9251454 , 0.92278486 , 0.92036426 , 0.91788334 , 0.91534203 , 0.91274023 , 0.9100778 , 0.9073548 , 0.9045712 , 0.9017268 , 0.89882183 , 0.8958562 , 0.89282995 , 0.8897432 , 0.886596 , 0.8833886 , 0.88012075 , 0.876793 , 0.8734053 , 0.8699578 , 0.8664507 , 0.8628842 , 0.85925865 , 0.8555742 , 0.85183114 , 0.8480296 , 0.84417003 , 0.8402527 , 0.836278 , 0.8322462 , 0.82815754 , 0.8240127 , 0.81981164 , 0.8155552 , 0.8112436 , 0.8068773 , 0.8024568 , 0.79798263 , 0.7934552 , 0.788875 , 0.78424263 , 0.77955866 , 0.77482367 , 0.7700382 , 0.76520306 , 0.7603186 , 0.7553858 , 0.750405 , 0.74537706 , 0.7403031 , 0.73518324 , 0.73001873 , 0.72480994 , 0.7195582 , 0.714264 , 0.7089286 , 0.70355237 , 0.6981368 , 0.6926824 , 0.6871906 , 0.68166244 , 0.6760984 , 0.67050064 , 0.66486925 , 0.65920633 , 0.6535124 , 0.64778924 , 0.6420377 , 0.63625985 , 0.6304561 , 0.62462854 , 0.6187791 , 0.61290854 , 0.60701925 , 0.60111195 , 0.5951895 , 0.58925253 , 0.5833042 , 0.57734525 , 0.5713786 , 0.5654054 , 0.55942863 , 0.5534506 , 0.5474728 , 0.54149866 , 0.5355294 , 0.5295689 , 0.52361876 , 0.51768285 , 0.5117627 , 0.50586176 , 0.49998415 , 0.49413142 , 0.48830834 , 0.48251665 , 0.47676167 , 0.4710447 , 0.4653721 , 0.45974478 , 0.45416957 , 0.44864753 , 0.44318435 , 0.43778518 , 0.4324514 , 0.4271907 , 0.42200384 , 0.4168986 , 0.41187632 , 0.40694392 , 0.4021045 , 0.39736322 , 0.39272374 , 0.38819104 , 0.38376838 , 0.37945992 , 0.3752701 , 0.37120032 , 0.36725762 , 0.36344275 , 0.35975853 , 0.3562081 , 0.35279226 , 0.34951332 , 0.3463715 , 0.3433669 , 0.34050032 , 0.33777085 , 0.3351737 , 0.3327109 , 0.33037695 , 0.32816976 , 0.32608336 , 0.32411364 , 0.32225302 , 0.32049632 , 0.31883442 , 0.31725863 , 0.31575835 , 0.31432915 , 0.31295443 , 0.31162542 , 0.31032994 , 0.30905154 , 0.30778122 , 0.30649903 , 0.30519295 , 0.3038461 , 0.30243647 , 0.3009518 , 0.29937094 , 0.29767165 , 0.29583326 , 0.2938297 , 0.29163584 , 0.28922495 , 0.28656486 , 0.28362364 , 0.28036165 , 0.27673277 , 0.2726987 , 0.26819843 , 0.2631695 , 0.25753176 , 0.25119466 , 0.24403761 , 0.23592123 , 0.2266435 , 0.2159501 , 0.20344463 , 0.18856688 , 0.17031908 , 0.1467575 , 0.11270576 , 0.00323677 ] ;
#[ rustfmt::skip ]
static EXPECTED_MASK_08 : [ f32 ; 256 ] = [ 1.0 , 0.97301966 , 0.9483565 , 0.92581207 , 0.9052065 , 0.8863773 , 0.86917543 , 0.8534658 , 0.8391256 , 0.82604086 , 0.81410825 , 0.80323166 , 0.79332286 , 0.78429985 , 0.7760863 , 0.7686117 , 0.7618097 , 0.7556182 , 0.7499784 , 0.7448358 , 0.74013805 , 0.735836 , 0.7318828 , 0.7282341 , 0.724847 , 0.7216812 , 0.7186976 , 0.7158591 , 0.7131299 , 0.71047634 , 0.70786506 , 0.705265 , 0.7026458 , 0.6999789 , 0.69723636 , 0.69439274 , 0.6914226 , 0.68830246 , 0.6850099 , 0.6815241 , 0.6778255 , 0.6738958 , 0.66971844 , 0.6652776 , 0.6605602 , 0.65555304 , 0.650246 , 0.6446294 , 0.6386957 , 0.6324387 , 0.6258541 , 0.6189384 , 0.6116908 , 0.60411143 , 0.59620154 , 0.5879653 , 0.5794071 , 0.5705335 , 0.5613522 , 0.55187273 , 0.5421053 , 0.532062 , 0.52175605 , 0.5112014 , 0.5004138 , 0.4894094 , 0.47820586 , 0.46682078 , 0.45527333 , 0.44358265 , 0.43176922 , 0.41985318 , 0.4078552 , 0.39579678 , 0.38369834 , 0.37158158 , 0.35946706 , 0.3473761 , 0.33532932 , 0.3233465 , 0.31144762 , 0.29965213 , 0.28797832 , 0.27644426 , 0.2650672 , 0.2538632 , 0.24284792 , 0.23203576 , 0.22144021 , 0.21107364 , 0.20094803 , 0.19107313 , 0.18145862 , 0.17211263 , 0.1630422 , 0.15425344 , 0.14575136 , 0.13753979 , 0.12962131 , 0.121998124 , 0.11467082 , 0.107639365 , 0.100902446 , 0.09445834 , 0.08830449 , 0.08243708 , 0.076852135 , 0.07154449 , 0.06650879 , 0.061738882 , 0.05722833 , 0.052969858 , 0.048956152 , 0.045179587 , 0.041631833 , 0.03830488 , 0.035190117 , 0.032279003 , 0.029562855 , 0.027033038 , 0.02468074 , 0.022497335 , 0.020474205 , 0.018602902 , 0.016875094 , 0.015282571 , 0.013817431 , 0.012471816 , 0.0112383105 , 0.0101095475 , 0.009078545 , 0.008138663 , 0.0072833193 , 0.006506449 , 0.0058021126 , 0.0051648114 , 0.004589231 , 0.004070427 , 0.0036036533 , 0.0031845558 , 0.0028089648 , 0.0024730647 , 0.0021732512 , 0.0019061574 , 0.0016687337 , 0.0014580758 , 0.0012715748 , 0.001106781 , 0.0009614784 , 0.0008336202 , 0.00072136015 , 0.00062298466 , 0.00053696934 , 0.00046192406 , 0.00039657977 , 0.00033981237 , 0.00029059322 , 0.00024801854 , 0.00021126306 , 0.00017960659 , 0.00015239452 , 0.00012905747 , 0.0001090837 , 0.000092026974 , 0.000077492776 , 0.00006513292 , 0.000054645934 , 0.00004576495 , 0.00003826129 , 0.000031933254 , 0.000026608495 , 0.000022135933 , 0.000018386958 , 0.000015251044 , 0.000012632214 , 0.000010449756 , 0.000008633694 , 0.000007125597 , 0.000005874811 , 0.0000048395545 , 0.000003983536 , 0.0000032770909 , 0.0000026945397 , 0.0000022148818 , 0.0000018204425 , 0.0000014962245 , 0.000001230123 , 0.000001011725 , 0.00000083269754 , 0.00000068591316 , 0.0000005656565 , 0.00000046711415 , 0.0000003863694 , 0.00000032018005 , 0.00000026590607 , 0.00000022136388 , 0.00000018477976 , 0.0000001547046 , 0.00000012993713 , 0.000000109530006 , 0.000000092677915 , 0.00000007873675 , 0.00000006718318 , 0.00000005758441 , 0.00000004959293 , 0.000000042921464 , 0.000000037336587 , 0.000000032649805 , 0.000000028704813 , 0.0000000253699 , 0.000000022546159 , 0.00000002014448 , 0.000000018095754 , 0.000000016340236 , 0.000000014830539 , 0.000000013525465 , 0.000000012392772 , 0.00000001140364 , 0.000000010534523 , 0.0000000097651105 , 0.000000009081434 , 0.000000008466379 , 0.000000007909084 , 0.000000007399097 , 0.000000006926191 , 0.000000006484458 , 0.0000000060654903 , 0.000000005664892 , 0.000000005277865 , 0.00000000489944 , 0.0000000045284674 , 0.0000000041625015 , 0.0000000038001398 , 0.0000000034415308 , 0.0000000030869618 , 0.000000002738131 , 0.000000002397576 , 0.0000000020680777 , 0.0000000017533902 , 0.0000000014571282 , 0.0000000011829588 , 0.0000000009352538 , 0.00000000071663736 , 0.0000000005293817 , 0.00000000037436287 , 0.00000000025128466 , 0.00000000015823709 , 0.000000000092102735 , 0.000000000048472164 , 0.000000000022369412 , 0.000000000008612706 , 0.000000000002555328 , 0.00000000000050143293 , 0.00000000000004630252 , 0.0000000000000006778562 , 0.000000000000000000000000000000000000000145141 ] ;
#[ test ]
fn test_mask_values ( ) {
FLOAT_RANGE
. iter ( )
. zip ( EXPECTED_MASK_02 . iter ( ) )
. for_each ( | ( & x , & exp ) | {
let value = get_mask_value ( x , calc_luma_scaling ( 0.2 , 10.0 ) ) ;
assert! (
( value - exp ) . abs ( ) < 0.0001 ,
"luma scaling 0.2: Mask was wrong at position {}, expected {}, got {}" ,
x ,
exp ,
value
) ;
} ) ;
FLOAT_RANGE
. iter ( )
. zip ( EXPECTED_MASK_08 . iter ( ) )
. for_each ( | ( & x , & exp ) | {
let value = get_mask_value ( x , calc_luma_scaling ( 0.8 , 10.0 ) ) ;
assert! (
( value - exp ) . abs ( ) < 0.0001 ,
"luma scaling 0.8: Mask was wrong at position {}, expected {}, got {}" ,
x ,
exp ,
value
) ;
} ) ;
}
#[ test ]
fn test_mask_values_clamping ( ) {
FLOAT_RANGE
. iter ( )
. zip ( EXPECTED_MASK_02 . iter ( ) )
. for_each ( | ( & x , & exp ) | {
assert! (
( get_mask_value_clamping ( x , calc_luma_scaling ( 0.2 , 10.0 ) ) - exp ) . abs ( ) < 0.0001
) ;
} ) ;
assert_eq! (
get_mask_value_clamping ( 1.1 , calc_luma_scaling ( 0.99 , 10.0 ) ) ,
0.0
) ;
assert_eq! (
get_mask_value_clamping ( - 0.1 , calc_luma_scaling ( - 0.1 , 10.0 ) ) ,
1.0
) ;
}
Ok ( ( ) )
}
kageru