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GenerateDarkenedShadeTable 93 matching

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Dethrace Labs 2025-09-06 19:51:46 +12:00 committed by Dethrace Engineering Department
parent 3b0612b8e9
commit 1dcf8a8d9e
1 changed files with 26 additions and 17 deletions
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43
src/DETHRACE/common/utility.c
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@ -950,43 +950,52 @@ br_pixelmap* GenerateDarkenedShadeTable(int pHeight, br_pixelmap* pPalette, int
if (the_table == NULL) {
FatalError(kFatalError_LoadGeneratedShadeTable);
}
cp = pPalette->pixels;
ref_col.red = pRed_mix;
ref_col.green = pGreen_mix;
ref_col.blue = pBlue_mix;
;
for (c = 0, tab_ptr = the_table->pixels; c < 256; c++, tab_ptr++) {
the_RGB.red = ((cp[c] >> 16) & 0xff) * pDarken;
the_RGB.green = ((cp[c] >> 8) & 0xff) * pDarken;
the_RGB.blue = ((cp[c] >> 0) & 0xff) * pDarken;
for (tab_ptr = the_table->pixels, c = 0, cp = pPalette->pixels; c < 256; c++, cp++) {
the_RGB.red = BR_RED(*cp) * pDarken;
the_RGB.green = BR_GRN(*cp) * pDarken;
the_RGB.blue = BR_BLU(*cp) * pDarken;
shade_ptr = tab_ptr;
tab_ptr++;
if (pHeight == 1) {
f_total_minus_1 = 1.;
} else {
f_total_minus_1 = pHeight - 1;
}
shade_ptr = tab_ptr;
for (i = 0, shade_ptr = tab_ptr; i < pHeight; i++, shade_ptr += 0x100) {
f_i = i;
for (i = 0; i < pHeight; i++) {
int unk;
if (pHeight == 1) {
unk = 1;
} else {
unk = i;
}
f_i = unk;
ratio1 = f_i / f_total_minus_1;
if (ratio1 < .5) {
if (ratio1 < .25) {
ratio2 = pQuarter * ratio1 * 4.;
} else {
if (ratio1 >= .25) {
ratio2 = (ratio1 - .25) * (pHalf - pQuarter) * 4. + pQuarter;
} else {
ratio2 = pQuarter * ratio1 * 4.;
}
} else {
if (ratio1 < 0.75) {
ratio2 = (ratio1 - .5) * (pThree_quarter - pHalf) * 4. + pHalf;
if (ratio1 >= 0.75) {
ratio2 = 1.0 - (1.0 - ratio1) * (1.0 - pThree_quarter) * 4.0;
} else {
ratio2 = 1. - (1. - pThree_quarter) * (1. - ratio1) * 4.;
ratio2 = (ratio1 - .5) * (pThree_quarter - pHalf) * 4. + pHalf;
}
}
new_RGB.red = ref_col.red * ratio2 + the_RGB.red * (1. - ratio2);
new_RGB.red = (int)((double)((1.0 - ratio2) * (double)the_RGB.red) + ((double)ref_col.red * ratio2));
new_RGB.green = ref_col.green * ratio2 + the_RGB.green * (1. - ratio2);
new_RGB.blue = ref_col.blue * ratio2 + the_RGB.blue * (1. - ratio2);
*shade_ptr = FindBestMatch(&new_RGB, pPalette);
shade_ptr += 256;
}
}
SaveGeneratedShadeTable(the_table, pRed_mix, pGreen_mix, pBlue_mix);