ShuriZma
/
desmume
mirror of https://github.com/TASEmulators/desmume.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drawscanline: factor bounds check out of the loop. 

Initialize edge_fx_fl even if width=height=0.

Fix a freeze/slowdown in Okamiden (#3240891).
Also a slight softrasterizer speedup.
This commit is contained in:
pengvado 2011-03-24 22:00:54 +00:00
parent 9e70ebca45
commit c4c9cf60f6
1 changed files with 31 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
desmume/src/rasterize.cpp
View File

@ -261,6 +261,11 @@ FORCEINLINE edge_fx_fl::edge_fx_fl(int Top, int Bottom, VERT** verts, bool& fail
for(int i=0;i<3;i++)
color[i].initialize(verts[Top]->fcolor[i],verts[Bottom]->fcolor[i],dx,dy,XStep,XPrestep,YPrestep);
}
else
{
memset(this, 0, sizeof(*this));
this->verts = verts;
}
}
FORCEINLINE int edge_fx_fl::Step() {
@ -755,20 +760,37 @@ public:
int x = XStart;
while(width-- > 0)
if(x<0)
{
bool outOfRange = false;
if(RENDERER && (x<0 || x>255))
outOfRange = true;
if(!RENDERER && (x<0 || x>=engine->width))
outOfRange = true;
if(!lineHack && outOfRange)
if(RENDERER && !lineHack)
{
printf("rasterizer rendering at x=%d! oops!\n",x);
return;
}
if(!outOfRange)
pixel(adr,color[0],color[1],color[2],u,v,1.0f/invw,z);
invw += dinvw_dx * -x;
u += du_dx * -x;
v += dv_dx * -x;
z += dz_dx * -x;
color[0] += dc_dx[0] * -x;
color[1] += dc_dx[1] * -x;
color[2] += dc_dx[2] * -x;
adr += -x;
width -= -x;
x = 0;
}
if(x+width > (RENDERER?256:engine->width))
{
if(RENDERER && !lineHack)
{
printf("rasterizer rendering at x=%d! oops!\n",x+width-1);
return;
}
width = (RENDERER?256:engine->width)-x;
}
while(width-- > 0)
{
pixel(adr,color[0],color[1],color[2],u,v,1.0f/invw,z);
adr++;
x++;