mirror of
https://github.com/ZDoom/qzdoom-gpl.git
synced 2024-12-11 12:51:27 +00:00
Undo removal of wallscan_np2 and wallscan_np2_ds
This commit is contained in:
Magnus Norddahl
parent
d5331e6095
commit
a6d696bbfd
1 changed files with 115 additions and 16 deletions
117
src/r_segs.cpp
117
src/r_segs.cpp
|
|
@ -1072,16 +1072,17 @@ uint32_t wallscan_drawcol1(int x, int y1, int y2, uint32_t uv_start, uint32_t uv
|
|||
if (uv_max == 0) // power of two
|
||||
{
|
||||
int count = y2 - y1;
|
||||
if (count > 0)
|
||||
{
|
||||
|
||||
dc_source = source;
|
||||
dc_dest = (ylookup[y1] + x) * pixelsize + dc_destorg;
|
||||
dc_count = y2 - y1;
|
||||
dc_count = count;
|
||||
dc_iscale = uv_step;
|
||||
dc_texturefrac = uv_start;
|
||||
draw1column();
|
||||
}
|
||||
return uv_start + uv_step * (uint32_t)count;
|
||||
|
||||
uint64_t step64 = uv_step;
|
||||
uint64_t pos64 = uv_start;
|
||||
return (uint32_t)(pos64 + step64 * count);
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -1119,15 +1120,19 @@ void wallscan_drawcol4(int x, int y1, int y2, uint32_t *uv_pos, uint32_t *uv_ste
|
|||
int pixelsize = r_swtruecolor ? 4 : 1;
|
||||
if (uv_max == 0) // power of two, no wrap handling needed
|
||||
{
|
||||
int count = y2 - y1;
|
||||
for (int i = 0; i < 4; i++)
|
||||
{
|
||||
bufplce[i] = source[i];
|
||||
vplce[i] = uv_pos[i];
|
||||
vince[i] = uv_step[i];
|
||||
uv_pos[i] += uv_step[i] * (y2 - y1);
|
||||
|
||||
uint64_t step64 = uv_step[i];
|
||||
uint64_t pos64 = uv_pos[i];
|
||||
uv_pos[i] = (uint32_t)(pos64 + step64 * count);
|
||||
}
|
||||
dc_dest = (ylookup[y1] + x) * pixelsize + dc_destorg;
|
||||
dc_count = y2 - y1;
|
||||
dc_count = count;
|
||||
draw4columns();
|
||||
}
|
||||
else
|
||||
|
|
@ -1481,16 +1486,110 @@ static void call_wallscan(int x1, int x2, short *uwal, short *dwal, float *swal,
|
|||
}
|
||||
}
|
||||
|
||||
// wallscan now tiles with non-power-of-two textures - this function is therefore not needed anymore..
|
||||
//=============================================================================
|
||||
//
|
||||
// wallscan_np2
|
||||
//
|
||||
// This is a wrapper around wallscan that helps it tile textures whose heights
|
||||
// are not powers of 2. It divides the wall into texture-sized strips and calls
|
||||
// wallscan for each of those. Since only one repetition of the texture fits
|
||||
// in each strip, wallscan will not tile.
|
||||
//
|
||||
//=============================================================================
|
||||
|
||||
void wallscan_np2(int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat, double top, double bot, bool mask)
|
||||
{
|
||||
if (!r_np2)
|
||||
{
|
||||
call_wallscan(x1, x2, uwal, dwal, swal, lwal, yrepeat, mask);
|
||||
}
|
||||
else
|
||||
{
|
||||
short most1[MAXWIDTH], most2[MAXWIDTH], most3[MAXWIDTH];
|
||||
short *up, *down;
|
||||
double texheight = rw_pic->GetHeight();
|
||||
double partition;
|
||||
double scaledtexheight = texheight / yrepeat;
|
||||
|
||||
if (yrepeat >= 0)
|
||||
{ // normal orientation: draw strips from top to bottom
|
||||
partition = top - fmod(top - dc_texturemid / yrepeat - ViewPos.Z, scaledtexheight);
|
||||
if (partition == top)
|
||||
{
|
||||
partition -= scaledtexheight;
|
||||
}
|
||||
up = uwal;
|
||||
down = most1;
|
||||
dc_texturemid = (partition - ViewPos.Z) * yrepeat + texheight;
|
||||
while (partition > bot)
|
||||
{
|
||||
int j = OWallMost(most3, partition - ViewPos.Z, &WallC);
|
||||
if (j != 3)
|
||||
{
|
||||
for (int j = x1; j < x2; ++j)
|
||||
{
|
||||
down[j] = clamp(most3[j], up[j], dwal[j]);
|
||||
}
|
||||
call_wallscan(x1, x2, up, down, swal, lwal, yrepeat, mask);
|
||||
up = down;
|
||||
down = (down == most1) ? most2 : most1;
|
||||
}
|
||||
partition -= scaledtexheight;
|
||||
dc_texturemid -= texheight;
|
||||
}
|
||||
call_wallscan(x1, x2, up, dwal, swal, lwal, yrepeat, mask);
|
||||
}
|
||||
else
|
||||
{ // upside down: draw strips from bottom to top
|
||||
partition = bot - fmod(bot - dc_texturemid / yrepeat - ViewPos.Z, scaledtexheight);
|
||||
up = most1;
|
||||
down = dwal;
|
||||
dc_texturemid = (partition - ViewPos.Z) * yrepeat + texheight;
|
||||
while (partition < top)
|
||||
{
|
||||
int j = OWallMost(most3, partition - ViewPos.Z, &WallC);
|
||||
if (j != 12)
|
||||
{
|
||||
for (int j = x1; j < x2; ++j)
|
||||
{
|
||||
up[j] = clamp(most3[j], uwal[j], down[j]);
|
||||
}
|
||||
call_wallscan(x1, x2, up, down, swal, lwal, yrepeat, mask);
|
||||
down = up;
|
||||
up = (up == most1) ? most2 : most1;
|
||||
}
|
||||
partition -= scaledtexheight;
|
||||
dc_texturemid -= texheight;
|
||||
}
|
||||
call_wallscan(x1, x2, uwal, down, swal, lwal, yrepeat, mask);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// wallscan now tiles with non-power-of-two textures - this function is therefore not needed anymore..
|
||||
static void wallscan_np2_ds(drawseg_t *ds, int x1, int x2, short *uwal, short *dwal, float *swal, fixed_t *lwal, double yrepeat)
|
||||
{
|
||||
if (rw_pic->GetHeight() != 1 << rw_pic->HeightBits)
|
||||
{
|
||||
double frontcz1 = ds->curline->frontsector->ceilingplane.ZatPoint(ds->curline->v1);
|
||||
double frontfz1 = ds->curline->frontsector->floorplane.ZatPoint(ds->curline->v1);
|
||||
double frontcz2 = ds->curline->frontsector->ceilingplane.ZatPoint(ds->curline->v2);
|
||||
double frontfz2 = ds->curline->frontsector->floorplane.ZatPoint(ds->curline->v2);
|
||||
double top = MAX(frontcz1, frontcz2);
|
||||
double bot = MIN(frontfz1, frontfz2);
|
||||
if (fake3D & FAKE3D_CLIPTOP)
|
||||
{
|
||||
top = MIN(top, sclipTop);
|
||||
}
|
||||
if (fake3D & FAKE3D_CLIPBOTTOM)
|
||||
{
|
||||
bot = MAX(bot, sclipBottom);
|
||||
}
|
||||
wallscan_np2(x1, x2, uwal, dwal, swal, lwal, yrepeat, top, bot, true);
|
||||
}
|
||||
else
|
||||
{
|
||||
call_wallscan(x1, x2, uwal, dwal, swal, lwal, yrepeat, true);
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
|
|
|
|||
Loading…
Reference in a new issue