Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-06-06 12:53:46 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

slightly different implementation after talking to sar. the 'z' value probably already is 1/z

Browse Source
This commit is contained in:
davidhay 2009-05-04 14:51:53 +00:00
parent 0c5ebcb2ee
commit 2f3a715a85
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/mame/video/dc.c
View File

@ -1348,7 +1348,7 @@ void render_hline(bitmap_t *bitmap, texinfo *ti, int y, float xl, float xr, floa
wbufline = &wbuffer[y][xxl]; wbufline = &wbuffer[y][xxl];
while(xxl < xxr) { while(xxl < xxr) {
if((wl < *wbufline) || *wbufline==0) { if((wl > *wbufline)) {
UINT32 c; UINT32 c;
float u = ul/wl; float u = ul/wl;
float v = vl/wl; float v = vl/wl;
@ -1614,7 +1614,7 @@ static void testdrawscreen(const running_machine *machine,bitmap_t *bitmap,const
for(i=sv; i <= ev; i++) for(i=sv; i <= ev; i++)
{ {
testvertices *tv = state_ta.grab[rs].showvertices + i; testvertices *tv = state_ta.grab[rs].showvertices + i;
tv->w = tv->z ? 1/tv->z : 0; tv->w = tv->z;// ? 1/tv->z : 0;
tv->u = tv->u * (ts->ti.sizex-1) * tv->w; tv->u = tv->u * (ts->ti.sizex-1) * tv->w;
tv->v = tv->v * (ts->ti.sizey-1) * tv->w; tv->v = tv->v * (ts->ti.sizey-1) * tv->w;
} }