OrdinaryMagician/vkdoom_m
OrdinaryMagician/vkdoom_m
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Merge branch 'master' of https://github.com/rheit/zdoom

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This commit is contained in:
Rachael Alexanderson 2016-11-06 08:11:04 -05:00
commit 901727a7f8
5 changed files with 22 additions and 11 deletions
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17
src/v_draw.cpp
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@ -1356,7 +1356,7 @@ void DCanvas::FinishSimplePolys()
void DCanvas::FillSimplePoly(FTexture *tex, FVector2 *points, int npoints,
double originx, double originy, double scalex, double scaley, DAngle rotation,
FDynamicColormap *colormap, int lightlevel)
FDynamicColormap *colormap, int lightlevel, int bottomclip)
{
#ifndef NO_SWRENDER
// Use an equation similar to player sprites to determine shade
@ -1374,6 +1374,11 @@ void DCanvas::FillSimplePoly(FTexture *tex, FVector2 *points, int npoints,
return;
}
if (bottomclip <= 0)
{
bottomclip = Height;
}
// Find the extents of the polygon, in particular the highest and lowest points.
for (botpt = toppt = 0, boty = topy = points[0].Y, leftx = rightx = points[0].X, i = 1; i <= npoints; ++i)
{
@ -1396,7 +1401,7 @@ void DCanvas::FillSimplePoly(FTexture *tex, FVector2 *points, int npoints,
rightx = points[i].X;
}
}
if (topy >= Height || // off the bottom of the screen
if (topy >= bottomclip || // off the bottom of the screen
boty <= 0 || // off the top of the screen
leftx >= Width || // off the right of the screen
rightx <= 0) // off the left of the screen
@ -1454,13 +1459,13 @@ void DCanvas::FillSimplePoly(FTexture *tex, FVector2 *points, int npoints,
{
x = FLOAT2FIXED(points[pt1].X + 0.5f);
y2 = xs_RoundToInt(points[pt2].Y + 0.5f);
if (y1 >= y2 || (y1 < 0 && y2 < 0) || (y1 >= Height && y2 >= Height))
if (y1 >= y2 || (y1 < 0 && y2 < 0) || (y1 >= bottomclip && y2 >= bottomclip))
{
}
else
{
fixed_t xinc = FLOAT2FIXED((points[pt2].X - points[pt1].X) / (points[pt2].Y - points[pt1].Y));
int y3 = MIN(y2, Height);
int y3 = MIN(y2, bottomclip);
if (y1 < 0)
{
x += xinc * -y1;
@ -1485,13 +1490,13 @@ void DCanvas::FillSimplePoly(FTexture *tex, FVector2 *points, int npoints,
{
x = FLOAT2FIXED(points[pt1].X + 0.5f);
y2 = xs_RoundToInt(points[pt2].Y + 0.5f);
if (y1 >= y2 || (y1 < 0 && y2 < 0) || (y1 >= Height && y2 >= Height))
if (y1 >= y2 || (y1 < 0 && y2 < 0) || (y1 >= bottomclip && y2 >= bottomclip))
{
}
else
{
fixed_t xinc = FLOAT2FIXED((points[pt2].X - points[pt1].X) / (points[pt2].Y - points[pt1].Y));
int y3 = MIN(y2, Height);
int y3 = MIN(y2, bottomclip);
if (y1 < 0)
{
x += xinc * -y1;