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Fixed sprites y positioning. Split legacy code in convenient function calls, nw

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This commit is contained in:
angelosa 2016-03-05 02:34:50 +01:00
parent b87afda9de
commit f0bbd842a4
1 changed files with 34 additions and 18 deletions
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50
src/mame/drivers/sprcros2.cpp
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@ -102,24 +102,24 @@ protected:
virtual void video_start() override; virtual void video_start() override;
private:
void legacy_bg_draw(bitmap_ind16 &bitmap,const rectangle &cliprect);
void legacy_fg_draw(bitmap_ind16 &bitmap,const rectangle &cliprect);
void legacy_obj_draw(bitmap_ind16 &bitmap,const rectangle &cliprect);
}; };
void sprcros2_state::video_start() void sprcros2_state::video_start()
{ {
} }
UINT32 sprcros2_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect ) void sprcros2_state::legacy_bg_draw(bitmap_ind16 &bitmap,const rectangle &cliprect)
{ {
gfx_element *gfx_0 = m_gfxdecode->gfx(0); gfx_element *gfx_0 = m_gfxdecode->gfx(0);
gfx_element *gfx_1 = m_gfxdecode->gfx(1);
gfx_element *gfx_2 = m_gfxdecode->gfx(2);
int y,x;
int count = 0; int count = 0;
for (y=0;y<32;y++) for (int y=0;y<32;y++)
{ {
for (x=0;x<32;x++) for (int x=0;x<32;x++)
{ {
UINT16 tile = m_bgvram[count]; UINT16 tile = m_bgvram[count];
tile |= (m_bgattr[count] & 7) << 8; tile |= (m_bgattr[count] & 7) << 8;
@ -135,27 +135,34 @@ UINT32 sprcros2_state::screen_update( screen_device &screen, bitmap_ind16 &bitma
} }
} }
for(count=0x40-4;count>-1;count-=4) }
void sprcros2_state::legacy_obj_draw(bitmap_ind16 &bitmap,const rectangle &cliprect)
{
gfx_element *gfx_1 = m_gfxdecode->gfx(1);
for(int count=0x40-4;count>-1;count-=4)
{ {
UINT8 x,y,tile,color; UINT8 x,y,tile,color;
bool flipx; bool flipx;
y = m_sprram[count+2]; y = 224-m_sprram[count+2];
x = m_sprram[count+3]; x = m_sprram[count+3];
tile = m_sprram[count+0]; tile = m_sprram[count+0];
flipx = bool(m_sprram[count+1] & 2); flipx = bool(m_sprram[count+1] & 2);
color = (m_sprram[count+1] & 0x38) >> 3; color = (m_sprram[count+1] & 0x38) >> 3;
gfx_1->transpen(bitmap,cliprect,tile,color,flipx,0,x,y,0); gfx_1->transpen(bitmap,cliprect,tile,color,flipx,0,x,y & 0xff,0);
}
} }
void sprcros2_state::legacy_fg_draw(bitmap_ind16 &bitmap,const rectangle &cliprect)
count = 0;
//gfx = m_gfxdecode->gfx(2);
for (y=0;y<32;y++)
{ {
for (x=0;x<32;x++) gfx_element *gfx_2 = m_gfxdecode->gfx(2);
int count = 0;
for (int y=0;y<32;y++)
{
for (int x=0;x<32;x++)
{ {
UINT16 tile = m_fgvram[count]; UINT16 tile = m_fgvram[count];
tile |= (m_fgattr[count] & 3) << 8; tile |= (m_fgattr[count] & 3) << 8;
@ -166,8 +173,17 @@ UINT32 sprcros2_state::screen_update( screen_device &screen, bitmap_ind16 &bitma
count++; count++;
} }
} }
}
UINT32 sprcros2_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect )
{
legacy_bg_draw(bitmap,cliprect);
legacy_obj_draw(bitmap,cliprect);
legacy_fg_draw(bitmap,cliprect);
return 0; return 0;
} }