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Support fade in/out for rgb555 zooming tiles

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This commit is contained in:
Angelo Salese 2013-02-06 16:54:14 +00:00
parent 9825dfe6d6
commit 38154b6727
1 changed files with 64 additions and 50 deletions
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114
src/mame/video/stvvdp2.c
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@ -2438,6 +2438,58 @@ INLINE UINT32 stv_add_blend(UINT32 a, UINT32 b)
);
}
static void stv_vdp2_compute_color_offset( running_machine &machine,int *r, int *g, int *b, int cor )
{
saturn_state *state = machine.driver_data<saturn_state>();
if ( cor == 0 )
{
*r = (STV_VDP2_COAR & 0x100) ? (*r - (0x100 - (STV_VDP2_COAR & 0xff))) : ((STV_VDP2_COAR & 0xff) + *r);
*g = (STV_VDP2_COAG & 0x100) ? (*g - (0x100 - (STV_VDP2_COAG & 0xff))) : ((STV_VDP2_COAG & 0xff) + *g);
*b = (STV_VDP2_COAB & 0x100) ? (*b - (0x100 - (STV_VDP2_COAB & 0xff))) : ((STV_VDP2_COAB & 0xff) + *b);
}
else
{
*r = (STV_VDP2_COBR & 0x100) ? (*r - (0xff - (STV_VDP2_COBR & 0xff))) : ((STV_VDP2_COBR & 0xff) + *r);
*g = (STV_VDP2_COBG & 0x100) ? (*g - (0xff - (STV_VDP2_COBG & 0xff))) : ((STV_VDP2_COBG & 0xff) + *g);
*b = (STV_VDP2_COBB & 0x100) ? (*b - (0xff - (STV_VDP2_COBB & 0xff))) : ((STV_VDP2_COBB & 0xff) + *b);
}
if(*r < 0) { *r = 0; }
if(*r > 0xff) { *r = 0xff; }
if(*g < 0) { *g = 0; }
if(*g > 0xff) { *g = 0xff; }
if(*b < 0) { *b = 0; }
if(*b > 0xff) { *b = 0xff; }
}
static void stv_vdp2_compute_color_offset_UINT32(running_machine &machine,UINT32 *rgb, int cor)
{
saturn_state *state = machine.driver_data<saturn_state>();
int _r = RGB_RED(*rgb);
int _g = RGB_GREEN(*rgb);
int _b = RGB_BLUE(*rgb);
if ( cor == 0 )
{
_r = (STV_VDP2_COAR & 0x100) ? (_r - (0x100 - (STV_VDP2_COAR & 0xff))) : ((STV_VDP2_COAR & 0xff) + _r);
_g = (STV_VDP2_COAG & 0x100) ? (_g - (0x100 - (STV_VDP2_COAG & 0xff))) : ((STV_VDP2_COAG & 0xff) + _g);
_b = (STV_VDP2_COAB & 0x100) ? (_b - (0x100 - (STV_VDP2_COAB & 0xff))) : ((STV_VDP2_COAB & 0xff) + _b);
}
else
{
_r = (STV_VDP2_COBR & 0x100) ? (_r - (0xff - (STV_VDP2_COBR & 0xff))) : ((STV_VDP2_COBR & 0xff) + _r);
_g = (STV_VDP2_COBG & 0x100) ? (_g - (0xff - (STV_VDP2_COBG & 0xff))) : ((STV_VDP2_COBG & 0xff) + _g);
_b = (STV_VDP2_COBB & 0x100) ? (_b - (0xff - (STV_VDP2_COBB & 0xff))) : ((STV_VDP2_COBB & 0xff) + _b);
}
if(_r < 0) { _r = 0; }
if(_r > 0xff) { _r = 0xff; }
if(_g < 0) { _g = 0; }
if(_g > 0xff) { _g = 0xff; }
if(_b < 0) { _b = 0; }
if(_b > 0xff) { _b = 0xff; }
*rgb = MAKE_RGB(_r, _g, _b);
}
static void stv_vdp2_drawgfxzoom_rgb555(
bitmap_rgb32 &dest_bmp,const rectangle &clip,running_machine &machine,
UINT32 code,UINT32 color,int flipx,int flipy,int sx,int sy,
@ -2565,6 +2617,9 @@ static void stv_vdp2_drawgfxzoom_rgb555(
b = pal5bit((data & 0x7c00) >> 10);
g = pal5bit((data & 0x03e0) >> 5);
r = pal5bit( data & 0x001f);
if(stv2_current_tilemap.fade_control & 1)
stv_vdp2_compute_color_offset(machine,&r,&g,&b,stv2_current_tilemap.fade_control & 2);
dest[x] = MAKE_RGB(r, g, b);
x_index += dx;
}
@ -2589,6 +2644,9 @@ static void stv_vdp2_drawgfxzoom_rgb555(
b = pal5bit((data & 0x7c00) >> 10);
g = pal5bit((data & 0x03e0) >> 5);
r = pal5bit( data & 0x001f);
if(stv2_current_tilemap.fade_control & 1)
stv_vdp2_compute_color_offset(machine,&r,&g,&b,stv2_current_tilemap.fade_control & 2);
if( data ) dest[x] = MAKE_RGB(r, g, b);
x_index += dx;
}
@ -2613,6 +2671,9 @@ static void stv_vdp2_drawgfxzoom_rgb555(
b = pal5bit((data & 0x7c00) >> 10);
g = pal5bit((data & 0x03e0) >> 5);
r = pal5bit( data & 0x001f);
if(stv2_current_tilemap.fade_control & 1)
stv_vdp2_compute_color_offset(machine,&r,&g,&b,stv2_current_tilemap.fade_control & 2);
if( data ) dest[x] = alpha_blend_r32(dest[x], MAKE_RGB(r, g, b), alpha);
x_index += dx;
}
@ -2637,6 +2698,9 @@ static void stv_vdp2_drawgfxzoom_rgb555(
b = pal5bit((data & 0x7c00) >> 10);
g = pal5bit((data & 0x03e0) >> 5);
r = pal5bit( data & 0x001f);
if(stv2_current_tilemap.fade_control & 1)
stv_vdp2_compute_color_offset(machine,&r,&g,&b,stv2_current_tilemap.fade_control & 2);
if( data ) dest[x] = stv_add_blend(dest[x], MAKE_RGB(r, g, b));
x_index += dx;
}
@ -2842,56 +2906,6 @@ static void stv_vdp2_drawgfxzoom(
}
static void stv_vdp2_compute_color_offset( running_machine &machine,int *r, int *g, int *b, int cor )
{
saturn_state *state = machine.driver_data<saturn_state>();
if ( cor == 0 )
{
*r = (STV_VDP2_COAR & 0x100) ? (*r - (0x100 - (STV_VDP2_COAR & 0xff))) : ((STV_VDP2_COAR & 0xff) + *r);
*g = (STV_VDP2_COAG & 0x100) ? (*g - (0x100 - (STV_VDP2_COAG & 0xff))) : ((STV_VDP2_COAG & 0xff) + *g);
*b = (STV_VDP2_COAB & 0x100) ? (*b - (0x100 - (STV_VDP2_COAB & 0xff))) : ((STV_VDP2_COAB & 0xff) + *b);
}
else
{
*r = (STV_VDP2_COBR & 0x100) ? (*r - (0xff - (STV_VDP2_COBR & 0xff))) : ((STV_VDP2_COBR & 0xff) + *r);
*g = (STV_VDP2_COBG & 0x100) ? (*g - (0xff - (STV_VDP2_COBG & 0xff))) : ((STV_VDP2_COBG & 0xff) + *g);
*b = (STV_VDP2_COBB & 0x100) ? (*b - (0xff - (STV_VDP2_COBB & 0xff))) : ((STV_VDP2_COBB & 0xff) + *b);
}
if(*r < 0) { *r = 0; }
if(*r > 0xff) { *r = 0xff; }
if(*g < 0) { *g = 0; }
if(*g > 0xff) { *g = 0xff; }
if(*b < 0) { *b = 0; }
if(*b > 0xff) { *b = 0xff; }
}
static void stv_vdp2_compute_color_offset_UINT32(running_machine &machine,UINT32 *rgb, int cor)
{
saturn_state *state = machine.driver_data<saturn_state>();
int _r = RGB_RED(*rgb);
int _g = RGB_GREEN(*rgb);
int _b = RGB_BLUE(*rgb);
if ( cor == 0 )
{
_r = (STV_VDP2_COAR & 0x100) ? (_r - (0x100 - (STV_VDP2_COAR & 0xff))) : ((STV_VDP2_COAR & 0xff) + _r);
_g = (STV_VDP2_COAG & 0x100) ? (_g - (0x100 - (STV_VDP2_COAG & 0xff))) : ((STV_VDP2_COAG & 0xff) + _g);
_b = (STV_VDP2_COAB & 0x100) ? (_b - (0x100 - (STV_VDP2_COAB & 0xff))) : ((STV_VDP2_COAB & 0xff) + _b);
}
else
{
_r = (STV_VDP2_COBR & 0x100) ? (_r - (0xff - (STV_VDP2_COBR & 0xff))) : ((STV_VDP2_COBR & 0xff) + _r);
_g = (STV_VDP2_COBG & 0x100) ? (_g - (0xff - (STV_VDP2_COBG & 0xff))) : ((STV_VDP2_COBG & 0xff) + _g);
_b = (STV_VDP2_COBB & 0x100) ? (_b - (0xff - (STV_VDP2_COBB & 0xff))) : ((STV_VDP2_COBB & 0xff) + _b);
}
if(_r < 0) { _r = 0; }
if(_r > 0xff) { _r = 0xff; }
if(_g < 0) { _g = 0; }
if(_g > 0xff) { _g = 0xff; }
if(_b < 0) { _b = 0; }
if(_b > 0xff) { _b = 0xff; }
*rgb = MAKE_RGB(_r, _g, _b);
}
static void stv_vdp2_drawgfx_rgb555( bitmap_rgb32 &dest_bmp, const rectangle &clip, running_machine &machine, UINT32 code, int flipx, int flipy,
int sx, int sy, int transparency, int alpha)