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deco_mlc - renderer is now fully scanline based, should make implementing the raster effects in a clean way much easier.

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This commit is contained in:
David Haywood 2013-03-16 08:57:20 +00:00
parent a2db6d1509
commit fc6f68dffd
3 changed files with 22 additions and 21 deletions
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4
src/mame/drivers/deco_mlc.c
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@ -395,7 +395,7 @@ static MACHINE_CONFIG_START( avengrgs, deco_mlc_state )
MCFG_GFXDECODE(deco_mlc)
MCFG_PALETTE_LENGTH(2048)
// MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_SCANLINE)
MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_SCANLINE)
MCFG_VIDEO_START_OVERRIDE(deco_mlc_state,mlc)
@ -428,7 +428,7 @@ static MACHINE_CONFIG_START( mlc, deco_mlc_state )
MCFG_GFXDECODE(deco_mlc)
MCFG_PALETTE_LENGTH(2048)
// MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_SCANLINE)
MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_SCANLINE)
MCFG_VIDEO_START_OVERRIDE(deco_mlc_state,mlc)

2
src/mame/includes/deco_mlc.h
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@ -40,6 +40,6 @@ public:
void screen_eof_mlc(screen_device &screen, bool state);
TIMER_DEVICE_CALLBACK_MEMBER(interrupt_gen);
void blitRaster(bitmap_rgb32 &bitmap, int rasterMode);
void draw_sprites( bitmap_rgb32 &bitmap,const rectangle &cliprect, int scanline);
void draw_sprites( const rectangle &cliprect, int scanline, UINT32* dest);
void descramble_sound( );
};

37
src/mame/video/deco_mlc.c
View File

@ -158,7 +158,7 @@ static void mlc_drawgfxzoomline(
}
void deco_mlc_state::draw_sprites( bitmap_rgb32 &bitmap,const rectangle &cliprect, int scanline)
void deco_mlc_state::draw_sprites( const rectangle &cliprect, int scanline, UINT32* dest)
{
UINT32 *index_ptr=0;
int offs,fx=0,fy=0,x,y,color,colorOffset,sprite,indx,h,w,bx,by,fx1,fy1;
@ -244,8 +244,16 @@ void deco_mlc_state::draw_sprites( bitmap_rgb32 &bitmap,const rectangle &cliprec
however there are space for 8 clipping windows, where is the high bit? (Or is it ~0x400?) */
clipper=((clipper&2)>>1)|((clipper&1)<<1); // Swap low two bits
user_clip.min_y=m_mlc_clip_ram[(clipper*4)+0];
user_clip.max_y=m_mlc_clip_ram[(clipper*4)+1];
int min_y = m_mlc_clip_ram[(clipper*4)+0];
int max_y = m_mlc_clip_ram[(clipper*4)+1];
if (scanline<min_y)
continue;
if (scanline>max_y)
continue;
user_clip.min_x=m_mlc_clip_ram[(clipper*4)+2];
user_clip.max_x=m_mlc_clip_ram[(clipper*4)+3];
@ -383,19 +391,6 @@ void deco_mlc_state::draw_sprites( bitmap_rgb32 &bitmap,const rectangle &cliprec
by = srcline >> 4;
int y = (full_realybase>>16)+bby;
rectangle myclip;
myclip = user_clip;
myclip &= bitmap.cliprect();
if( y < myclip.min_y )
continue;
if( y > myclip.max_y+1 )
continue;
UINT32 *dest = &bitmap.pix32(y);
srcline &=0xf;
if( fy )
@ -507,9 +502,15 @@ UINT32 deco_mlc_state::screen_update_mlc(screen_device &screen, bitmap_rgb32 &bi
// temp_bitmap->fill(0, cliprect);
bitmap.fill(machine().pens[0], cliprect); /* Pen 0 fill colour confirmed from Skull Fang level 2 */
for (int i=0;i<256;i++)
for (int i=cliprect.min_y;i<=cliprect.max_y;i++)
{
draw_sprites(bitmap,cliprect, i);
UINT32 *dest = &bitmap.pix32(i);
draw_sprites(cliprect, i, dest);
}
return 0;
}