thirdpartymirrors/RingRacers
1
0
Fork 0
mirror of https://github.com/KartKrewDev/RingRacers.git synced 2025-10-30 08:01:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Check for papersprites per-sprite instead of per-row

Browse source 
In theory, should be a performance improvement. In practice idk
This commit is contained in:
fickleheart 2019-12-27 11:48:40 -06:00
parent 8cae57eab0
commit e276e1979c
1 changed files with 26 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

42
src/r_things.c
View file

@ -891,41 +891,51 @@ static void R_DrawVisSprite(vissprite_t *vis)
if (vis->x2 >= vid.width) if (vis->x2 >= vid.width)
vis->x2 = vid.width-1; vis->x2 = vid.width-1;
for (dc_x = vis->x1; dc_x <= vis->x2; dc_x++, frac += vis->xiscale) // Split drawing loops for paper and non-paper to reduce conditional checks per sprite
if (vis->scalestep)
{ {
if (vis->scalestep) // Papersprite drawing loop
for (dc_x = vis->x1; dc_x <= vis->x2; dc_x++, spryscale += vis->scalestep)
{ {
angle_t angle = ((vis->centerangle + xtoviewangle[dc_x]) >> ANGLETOFINESHIFT) & 0xFFF; angle_t angle = ((vis->centerangle + xtoviewangle[dc_x]) >> ANGLETOFINESHIFT) & 0xFFF;
texturecolumn = (vis->paperoffset - FixedMul(FINETANGENT(angle), vis->paperdistance)) / this_scale; texturecolumn = (vis->paperoffset - FixedMul(FINETANGENT(angle), vis->paperdistance)) / this_scale;
if (texturecolumn < 0 || texturecolumn >= SHORT(patch->width)) if (texturecolumn < 0 || texturecolumn >= SHORT(patch->width))
{
spryscale += vis->scalestep;
continue; continue;
}
if (vis->xiscale < 0) if (vis->xiscale < 0) // Flipped sprite
texturecolumn = SHORT(patch->width) - 1 - texturecolumn; texturecolumn = SHORT(patch->width) - 1 - texturecolumn;
sprtopscreen = (centeryfrac - FixedMul(dc_texturemid, spryscale)); sprtopscreen = (centeryfrac - FixedMul(dc_texturemid, spryscale));
dc_iscale = (0xffffffffu / (unsigned)spryscale); dc_iscale = (0xffffffffu / (unsigned)spryscale);
column = (column_t *)((UINT8 *)patch + LONG(patch->columnofs[texturecolumn]));
if (vis->cut & SC_VFLIP)
R_DrawFlippedMaskedColumn(column, patch->height);
else
R_DrawMaskedColumn(column);
} }
else }
else
{
// Non-paper drawing loop
for (dc_x = vis->x1; dc_x <= vis->x2; dc_x++, frac += vis->xiscale)
{ {
texturecolumn = frac>>FRACBITS;
#ifdef RANGECHECK #ifdef RANGECHECK
texturecolumn = frac>>FRACBITS;
if (texturecolumn < 0 || texturecolumn >= SHORT(patch->width)) if (texturecolumn < 0 || texturecolumn >= SHORT(patch->width))
I_Error("R_DrawSpriteRange: bad texturecolumn at %d from end", vis->x2 - dc_x); I_Error("R_DrawSpriteRange: bad texturecolumn at %d from end", vis->x2 - dc_x);
column = (column_t *)((UINT8 *)patch + LONG(patch->columnofs[texturecolumn]));
#else
column = (column_t *)((UINT8 *)patch + LONG(patch->columnofs[frac>>FRACBITS]));
#endif #endif
if (vis->cut & SC_VFLIP)
R_DrawFlippedMaskedColumn(column, patch->height);
else
R_DrawMaskedColumn(column);
} }
column = (column_t *)((UINT8 *)patch + LONG(patch->columnofs[texturecolumn]));
if (vis->cut & SC_VFLIP)
R_DrawFlippedMaskedColumn(column, patch->height);
else
R_DrawMaskedColumn(column);
spryscale += vis->scalestep;
} }
colfunc = colfuncs[BASEDRAWFUNC]; colfunc = colfuncs[BASEDRAWFUNC];