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stvvdp1.cpp: disable transmask code for mode 2 sprites, fix Sasissu racing stage background clouds color [Angelo Salese]

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This commit is contained in:
angelosa 2018-05-02 23:14:06 +02:00
parent de8a9428a6
commit 1f07c3e5ec
2 changed files with 18 additions and 6 deletions
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18
src/devices/video/stvvdp1.cpp
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@ -947,6 +947,7 @@ void saturn_state::drawpixel_generic(int x, int y, int patterndata, int offsetcn
((((m_vdp1_vram[(((stv2_current_sprite.CMDCOLR&0xffff)*8)>>2)+((pix2&0xfffe)/2)])) & 0xffff0000) >> 16);
//mode = 5;
// TODO: transparency code wrong for after burner 2
transmask = 0xffff;
if ( !spd )
@ -965,7 +966,8 @@ void saturn_state::drawpixel_generic(int x, int y, int patterndata, int offsetcn
pix = m_vdp1.gfx_decode[(patterndata+offsetcnt) & 0xfffff];
//mode = 2;
pix = pix+(stv2_current_sprite.CMDCOLR&0xffc0);
transmask = 0x3f;
// disable transmask since transparent pen is checked below (sasissu racing stage background clouds)
transmask = 0xffff;
// Scud: the disposable assassin wants transparent pen on 0
if ( !spd )
@ -993,15 +995,23 @@ void saturn_state::drawpixel_generic(int x, int y, int patterndata, int offsetcn
//mode = 4;
break;
case 0x0028: // mode 5 32,768 colour RGB mode (16bits)
pix = m_vdp1.gfx_decode[(patterndata+offsetcnt*2+1) & 0xfffff] | (m_vdp1.gfx_decode[(patterndata+offsetcnt*2) & 0xfffff]<<8) ;
pix = m_vdp1.gfx_decode[(patterndata+offsetcnt*2+1) & 0xfffff] | (m_vdp1.gfx_decode[(patterndata+offsetcnt*2) & 0xfffff]<<8);
//mode = 5;
transmask = -1; /* TODO: check me */
// TODO: check transmask
transmask = -1;
break;
case 0x0038: // invalid
// game tengoku uses this on hi score screen (tate mode)
// according to Charles, reads from VRAM address 0
pix = m_vdp1.gfx_decode[1] | (m_vdp1.gfx_decode[0]<<8) ;
// TODO: check transmask
transmask = -1;
break;
default: // other settings illegal
pix = machine().rand();
//mode = 0;
transmask = 0xff;
popmessage("Illegal Sprite Mode, contact MAMEdev");
popmessage("Illegal Sprite Mode %02x, contact MAMEdev",stv2_current_sprite.CMDPMOD&0x0038);
}

6
src/devices/video/stvvdp2.cpp
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@ -4526,7 +4526,8 @@ void saturn_state::stv_vdp2_check_tilemap(bitmap_rgb32 &bitmap, const rectangle
stv_vdp2_draw_basic_tilemap(bitmap, mycliprect);
}
/* post-processing functions (TODO: needs layer bitmaps to be individual planes to work correctly) */
/* post-processing functions */
// (TODO: needs layer bitmaps to be individual planes to work correctly)
if(stv2_current_tilemap.line_screen_enabled && TEST_FUNCTIONS)
stv_vdp2_draw_line(bitmap,cliprect);
@ -6838,7 +6839,8 @@ void saturn_state::draw_sprites(bitmap_rgb32 &bitmap, const rectangle &cliprect,
};
// Pretty Fighter X, Game Tengoku shadows
// TODO: former doesn't read what's behind, VDP1 bug?
// TODO: Pretty Fighter X doesn't read what's behind on title screen, VDP1 bug?
// TODO: seldomly Game Tengoku shadows aren't drawn properly
if(pix & 0x8000 && STV_VDP2_SDCTL & 0x100)
{
rgb_t p = bitmap_line[x];