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HWR_CreateBlendedTexture optimizations 

By Hannu_Hanhi
This commit is contained in:
Wolfy 2020-05-11 17:47:24 -05:00
parent 869234d9f1
commit ec60fb0aff
1 changed files with 39 additions and 11 deletions
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50
src/hardware/hw_md2.c
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@ -670,6 +670,9 @@ static void HWR_CreateBlendedTexture(GLPatch_t *gpatch, GLPatch_t *blendgpatch,
UINT8 cutoff[16]; // Brightness cutoff before using the next color
UINT8 translen = 0;
UINT8 i;
UINT16 b;
UINT8 colorbrightnesses[16];
UINT8 color_match_lookup[256]; // optimization attempt
blendcolor = V_GetColor(0); // initialize
memset(translation, 0, sizeof(translation));
@ -738,6 +741,37 @@ static void HWR_CreateBlendedTexture(GLPatch_t *gpatch, GLPatch_t *blendgpatch,
translen++;
}
if (skinnum == TC_RAINBOW && translen > 0)
{
INT32 compare;
for (i = 0; i < translen; i++) // moved from inside the loop to here
{
RGBA_t tempc = V_GetColor(translation[i]);
SETBRIGHTNESS(colorbrightnesses[i], tempc.s.red, tempc.s.green, tempc.s.blue); // store brightnesses for comparison
}
// generate lookup table for color brightness matching
for (b = 0; b < 256; b++)
{
UINT16 brightdif = 256;
color_match_lookup[i] = 0;
for (i = 0; i < translen; i++)
{
if (b > colorbrightnesses[i]) // don't allow greater matches (because calculating a makeshift gradient for this is already a huge mess as is)
continue;
compare = abs((INT16)(colorbrightnesses[i]) - (INT16)(b));
if (compare < brightdif)
{
brightdif = (UINT16)compare;
color_match_lookup[b] = i; // best matching color that's equal brightness or darker
}
}
}
}
while (size--)
{
if (skinnum == TC_BOSS)
@ -822,9 +856,8 @@ static void HWR_CreateBlendedTexture(GLPatch_t *gpatch, GLPatch_t *blendgpatch,
// Ensue horrible mess.
if (skinnum == TC_RAINBOW)
{
UINT16 brightdif = 256;
UINT8 colorbrightnesses[16];
INT32 compare, m, d;
//UINT16 brightdif = 256;
INT32 /*compare,*/ m, d;
// Ignore pure white & pitch black
if (brightness > 253 || brightness < 2)
@ -838,13 +871,7 @@ static void HWR_CreateBlendedTexture(GLPatch_t *gpatch, GLPatch_t *blendgpatch,
mul = 0;
mulmax = 1;
for (i = 0; i < translen; i++)
{
RGBA_t tempc = V_GetColor(translation[i]);
SETBRIGHTNESS(colorbrightnesses[i], tempc.s.red, tempc.s.green, tempc.s.blue); // store brightnesses for comparison
}
for (i = 0; i < translen; i++)
/*for (i = 0; i < translen; i++)
{
if (brightness > colorbrightnesses[i]) // don't allow greater matches (because calculating a makeshift gradient for this is already a huge mess as is)
continue;
@ -856,7 +883,8 @@ static void HWR_CreateBlendedTexture(GLPatch_t *gpatch, GLPatch_t *blendgpatch,
brightdif = (UINT16)compare;
firsti = i; // best matching color that's equal brightness or darker
}
}
}*/
firsti = color_match_lookup[brightness];
secondi = firsti+1; // next color in line