Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 17:00:53 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Cleaned up VDP2 dynamic res stuff

Browse Source
This commit is contained in:
Angelo Salese 2011-05-24 18:34:17 +00:00
parent e97aa6b56d
commit a2196c79ed
1 changed files with 12 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/mame/video/stvvdp2.c
View File

@ -5477,35 +5477,23 @@ VIDEO_START( stv_vdp2 )
void stv_vdp2_dynamic_res_change(running_machine &machine)
{
saturn_state *state = machine.driver_data<saturn_state>();
int horz_res = 0,vert_res = 0;
const int d_vres[4] = { 224, 240, 256, 256 };
const int d_hres[4] = { 320, 352, 640, 704 };
int horz_res,vert_res;
switch( STV_VDP2_VRES & 3 )
{
case 0: vert_res = 224; break;
case 1: vert_res = 240; break;
case 2: vert_res = 256; break;
case 3:
if(LOG_VDP2) logerror("WARNING: V Res setting (3) not allowed!\n");
vert_res = 256;
break;
}
vert_res = d_vres[STV_VDP2_VRES & 3];
if((STV_VDP2_VRES & 3) == 3)
popmessage("Illegal VRES MODE, contact MAMEdev");
/*Double-density interlace mode,doubles the vertical res*/
if((STV_VDP2_LSMD & 3) == 3) { vert_res*=2; }
switch( STV_VDP2_HRES & 7 )
{
case 0: horz_res = 320; break;
case 1: horz_res = 352; break;
case 2: horz_res = 640; break;
case 3: horz_res = 704; break;
/*Exclusive modes,they sets the Vertical Resolution without considering the
VRES register.*/
case 4: horz_res = 320; vert_res = 480; break;
case 5: horz_res = 352; vert_res = 480; break;
case 6: horz_res = 640; vert_res = 480; break;
case 7: horz_res = 704; vert_res = 480; break;
}
horz_res = d_hres[STV_VDP2_HRES & 3];
/*Exclusive modes,they sets the Vertical Resolution without considering the
VRES register.*/
if(STV_VDP2_HRES & 4)
vert_res = 480;
{
int vblank_period,hblank_period;