Sprinter/mame
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

namcos23: Fix the zoom value [O. Galibert]

Browse Source
This commit is contained in:
Olivier Galibert 2010-04-03 09:51:56 +00:00
parent fd7120a48e
commit d0b704dbb7
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/mame/drivers/namcos23.c
View File

@ -1957,9 +1957,14 @@ static void render_apply_matrot(INT32 xi, INT32 yi, INT32 zi, const namcos23_ren
static void render_project(poly_vertex &pv)
{
// 768 validated by the title screen size on tc2:
// texture is 640x480, x range is 3.125, y range is 2.34375, z is 3.75
// 640/(3.125/3.75) = 768
// 480/(2.34375/3.75) = 768
float w = pv.p[0] ? 1/pv.p[0] : 0;
pv.x = 320 + 800*w*pv.x;
pv.y = 240 - 800*w*pv.y;
pv.x = 320 + 768*w*pv.x;
pv.y = 240 - 768*w*pv.y;
pv.p[0] = w;
}