forks
/
arsd
mirror of https://github.com/adamdruppe/arsd.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Fix downscaler

This commit is contained in:
Elias Batek 2025-02-02 01:17:27 +01:00
parent 2005248514
commit c65c8d462e
1 changed files with 2 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
pixmappaint.d
View File

@ -3068,7 +3068,6 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
ScalingDirection direction,
)(
UDecimal posSrcCenter,
UDecimal ratioHalf,
int sourceMax,
) {
pragma(inline, true);
@ -3082,7 +3081,7 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
];
}
static if (direction == up) {
static if (direction == up || direction == down) {
if (posSrcCenter < udecimalHalf) {
result = [
0,
@ -3110,12 +3109,6 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
}
}
static if (direction == down) {
result = [
max((posSrcCenter - ratioHalf).roundEven().castTo!uint, 0),
min((posSrcCenter + ratioHalf).roundEven().castTo!uint, sourceMax),
];
}
return result;
}
@ -3128,7 +3121,6 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
const int[2] posSrcY = posSrcCenterToInterpolationTargets!(directionY)(
posSrcCenterY,
ratiosHalf[idxY],
sourceMax[idxY],
);
@ -3156,7 +3148,6 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
const int[2] posSrcX = posSrcCenterToInterpolationTargets!(directionX)(
posSrcCenterX,
ratiosHalf[idxX],
sourceMax[idxX],
);
@ -3252,7 +3243,7 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
// ========== Down ==========
static if (directionX == down) {
static if (mode == SamplingMode.single) {
const posSampling = Point(posSrcX[idxL], posSrcY[idxT]);
const posSampling = posNeighs[idxTL];
const samplingOffset = source.scanTo(posSampling);
const srcSamples = () @trusted {
return source.data.ptr[samplingOffset .. (samplingOffset + nSamples)];