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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
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13
pixmappaint.d
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@ -3068,7 +3068,6 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
ScalingDirection direction, ScalingDirection direction,
)( )(
UDecimal posSrcCenter, UDecimal posSrcCenter,
UDecimal ratioHalf,
int sourceMax, int sourceMax,
) { ) {
pragma(inline, true); 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) { if (posSrcCenter < udecimalHalf) {
result = [ result = [
0, 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; return result;
} }
@ -3128,7 +3121,6 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
const int[2] posSrcY = posSrcCenterToInterpolationTargets!(directionY)( const int[2] posSrcY = posSrcCenterToInterpolationTargets!(directionY)(
posSrcCenterY, posSrcCenterY,
ratiosHalf[idxY],
sourceMax[idxY], sourceMax[idxY],
); );
@ -3156,7 +3148,6 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
const int[2] posSrcX = posSrcCenterToInterpolationTargets!(directionX)( const int[2] posSrcX = posSrcCenterToInterpolationTargets!(directionX)(
posSrcCenterX, posSrcCenterX,
ratiosHalf[idxX],
sourceMax[idxX], sourceMax[idxX],
); );
@ -3252,7 +3243,7 @@ private void scaleToImpl(ScalingFilter filter)(const Pixmap source, Pixmap targe
// ========== Down ========== // ========== Down ==========
static if (directionX == down) { static if (directionX == down) {
static if (mode == SamplingMode.single) { static if (mode == SamplingMode.single) {
const posSampling = Point(posSrcX[idxL], posSrcY[idxT]); const posSampling = posNeighs[idxTL];
const samplingOffset = source.scanTo(posSampling); const samplingOffset = source.scanTo(posSampling);
const srcSamples = () @trusted { const srcSamples = () @trusted {
return source.data.ptr[samplingOffset .. (samplingOffset + nSamples)]; return source.data.ptr[samplingOffset .. (samplingOffset + nSamples)];