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Obviously I don't understand why there was a /2 in the drawpixel functions, fixed gfx regressions

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This commit is contained in:
Angelo Salese 2013-02-07 18:18:58 +00:00
parent 10353d4b7d
commit 162e3f3a81
1 changed files with 10 additions and 10 deletions
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20
src/mame/video/stvvdp1.c
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@ -16,7 +16,7 @@ Framebuffer todo:
#include "emu.h"
#include "includes/stv.h"
#define VDP1_LOG 0
#define VDP1_LOG 1
enum { FRAC_SHIFT = 16 };
@ -827,7 +827,7 @@ void saturn_state::drawpixel_8bpp_trans(int x, int y, int patterndata, int offse
UINT8 *vdp1_vram = (UINT8 *)m_vdp1_vram;
UINT16 pix;
pix = vdp1_vram[(patterndata+offsetcnt/2)^3];
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0x7ffff];
if ( pix & 0xff )
{
m_vdp1.framebuffer_draw_lines[y][x] = pix | m_sprite_colorbank;
@ -839,7 +839,7 @@ void saturn_state::drawpixel_4bpp_notrans(int x, int y, int patterndata, int off
UINT8 *vdp1_vram = (UINT8 *)m_vdp1_vram;
UINT16 pix;
pix = vdp1_vram[(patterndata+offsetcnt/2)^3];
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0x7ffff];
pix = offsetcnt&1 ? (pix & 0x0f):((pix & 0xf0)>>4) ;
m_vdp1.framebuffer_draw_lines[y][x] = pix | m_sprite_colorbank;
}
@ -849,7 +849,7 @@ void saturn_state::drawpixel_4bpp_trans(int x, int y, int patterndata, int offse
UINT8 *vdp1_vram = (UINT8 *)m_vdp1_vram;
UINT16 pix;
pix = vdp1_vram[(patterndata+offsetcnt/2)^3];
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0x7ffff];
pix = offsetcnt&1 ? (pix & 0x0f):((pix & 0xf0)>>4) ;
if ( pix )
m_vdp1.framebuffer_draw_lines[y][x] = pix | m_sprite_colorbank;
@ -887,7 +887,7 @@ void saturn_state::drawpixel_generic(int x, int y, int patterndata, int offsetcn
{
case 0x0000: // mode 0 16 colour bank mode (4bits) (hanagumi blocks)
// most of the shienryu sprites use this mode
pix = vdp1_vram[((patterndata+offsetcnt/2)^3) & 0xfffff];
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0x7ffff];
pix = offsetcnt&1 ? (pix & 0x0f):((pix & 0xf0)>>4) ;
pix = pix+((stv2_current_sprite.CMDCOLR&0xfff0));
mode = 0;
@ -895,7 +895,7 @@ void saturn_state::drawpixel_generic(int x, int y, int patterndata, int offsetcn
break;
case 0x0008: // mode 1 16 colour lookup table mode (4bits)
// shienryu explosisons (and some enemies) use this mode
pix2 = vdp1_vram[((patterndata+offsetcnt/2)^3) & 0xfffff];
pix2 = vdp1_vram[((patterndata+offsetcnt)^3) & 0x7ffff];
pix2 = offsetcnt&1 ? (pix2 & 0x0f):((pix2 & 0xf0)>>4);
pix = pix2&1 ?
((((m_vdp1_vram[(((stv2_current_sprite.CMDCOLR&0xffff)*8)>>2)+((pix2&0xfffe)/2)])) & 0x0000ffff) >> 0):
@ -917,25 +917,25 @@ void saturn_state::drawpixel_generic(int x, int y, int patterndata, int offsetcn
}
break;
case 0x0010: // mode 2 64 colour bank mode (8bits) (character select portraits on hanagumi)
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0xfffff];
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0x7ffff];
mode = 2;
pix = pix+(stv2_current_sprite.CMDCOLR&0xffc0);
transmask = 0x3f;
break;
case 0x0018: // mode 3 128 colour bank mode (8bits) (little characters on hanagumi use this mode)
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0xfffff];
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0x7ffff];
pix = pix+(stv2_current_sprite.CMDCOLR&0xff80);
transmask = 0x7f;
mode = 3;
break;
case 0x0020: // mode 4 256 colour bank mode (8bits) (hanagumi title)
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0xfffff];
pix = vdp1_vram[((patterndata+offsetcnt)^3) & 0x7ffff];
pix = pix+(stv2_current_sprite.CMDCOLR&0xff00);
transmask = 0xff;
mode = 4;
break;
case 0x0028: // mode 5 32,768 colour RGB mode (16bits)
pix = vdp1_vram[((patterndata+offsetcnt*2+1)^3) & 0xfffff] | (vdp1_vram[((patterndata+offsetcnt*2)^3) & 0xfffff]<<8) ;
pix = vdp1_vram[((patterndata+offsetcnt*2+1)^3) & 0x7ffff] | (vdp1_vram[((patterndata+offsetcnt*2)^3) & 0x7ffff]<<8) ;
mode = 5;
transmask = -1; /* TODO: check me */
break;