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color_helpers: Encode source color EOTF edges once per-edge rather than per-element

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This commit is contained in:
Joshua Ashton 2023-05-09 15:30:51 +00:00 • committed by Joshie
parent 50237d4f11
commit 8597dff537
1 changed files with 11 additions and 11 deletions
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22
src/color_helpers.cpp
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@ -574,24 +574,24 @@ void calcColorTransform( uint16_t * pRgbxData1d, int nLutSize1d,
glm::vec3 nightModeMultHSV( nightmode.hue, clamp01( nightmode.saturation * nightmode.amount ), 1.f );
glm::vec3 vNightModeMultLinear = glm::pow( hsv_to_rgb( nightModeMultHSV ), glm::vec3( 2.2f ) );
glm::vec3 shapedSourceColor;
glm::vec3 sourceColorEOTFEncoded;
float sourceColorEOTFEncodedEdges[nLutEdgeSize3d];
// Precalculate source color EOTF encoded per-edge.
for ( int nIndex = 0; nIndex < nLutEdgeSize3d; ++nIndex )
{
float flShapedSource = nIndex * flScale;
float flSourceColorEOTFEncoded = applyShaper( flShapedSource, sourceEOTF, destEOTF, tonemapping, flGain, true );
sourceColorEOTFEncodedEdges[nIndex] = flSourceColorEOTFEncoded;
}
for ( int nBlue=0; nBlue<nLutEdgeSize3d; ++nBlue )
{
shapedSourceColor.b = nBlue * flScale;
sourceColorEOTFEncoded.b = applyShaper( shapedSourceColor.b, sourceEOTF, destEOTF, tonemapping, flGain, true );
for ( int nGreen=0; nGreen<nLutEdgeSize3d; ++nGreen )
{
shapedSourceColor.g = nGreen * flScale;
sourceColorEOTFEncoded.g = applyShaper( shapedSourceColor.g, sourceEOTF, destEOTF, tonemapping, flGain, true );
for ( int nRed=0; nRed<nLutEdgeSize3d; ++nRed )
{
shapedSourceColor.r = nRed * flScale;
sourceColorEOTFEncoded.r = applyShaper( shapedSourceColor.r, sourceEOTF, destEOTF, tonemapping, flGain, true );
glm::vec3 sourceColorEOTFEncoded = glm::vec3(sourceColorEOTFEncodedEdges[nRed], sourceColorEOTFEncodedEdges[nGreen], sourceColorEOTFEncodedEdges[nBlue]);
if ( pLook && !pLook->data.empty() )
{
sourceColorEOTFEncoded = ApplyLut3D_Tetrahedral( *pLook, sourceColorEOTFEncoded );