mirror of
https://github.com/holub/mame
synced 2025-06-07 21:33:45 +03:00
hmm pen based blending too.. ok ... (nw)
This commit is contained in:
mamehaze
parent
6dc4835957
commit
c75c981c05
@ -99,7 +99,7 @@ public:
|
||||
DECLARE_WRITE16_MEMBER(ttchamp_mem_w);
|
||||
|
||||
UINT16 m_videoram0[0x10000 / 2];
|
||||
UINT16 m_videoram1[0x10000 / 2];
|
||||
// UINT16 m_videoram1[0x10000 / 2];
|
||||
UINT16 m_videoram2[0x10000 / 2];
|
||||
|
||||
|
||||
@ -141,18 +141,23 @@ UINT32 ttchamp_state::screen_update_ttchamp(screen_device &screen, bitmap_ind16
|
||||
static const int xxx=320,yyy=204;
|
||||
|
||||
bitmap.fill(m_palette->black_pen());
|
||||
|
||||
UINT8 *videoramfg;
|
||||
UINT8* videorambg;
|
||||
|
||||
count=0;
|
||||
UINT8 *videoram = (UINT8*)m_videoram0;
|
||||
videorambg = (UINT8*)m_videoram0;
|
||||
videoramfg = (UINT8*)m_videoram2;
|
||||
|
||||
for (y=0;y<yyy;y++)
|
||||
{
|
||||
for(x=0;x<xxx;x++)
|
||||
{
|
||||
/*if(hotblock_port0&0x40)*/bitmap.pix16(y, x) = videoram[BYTE_XOR_LE(count)]+0x300;
|
||||
bitmap.pix16(y, x) = videorambg[BYTE_XOR_LE(count)]+0x300;
|
||||
count++;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
count=0;
|
||||
videoram = (UINT8*)m_videoram1;
|
||||
for (y=0;y<yyy;y++)
|
||||
@ -164,18 +169,42 @@ UINT32 ttchamp_state::screen_update_ttchamp(screen_device &screen, bitmap_ind16
|
||||
count++;
|
||||
}
|
||||
}
|
||||
|
||||
*/
|
||||
|
||||
count=0;
|
||||
videoram = (UINT8*)m_videoram2;
|
||||
for (y=0;y<yyy;y++)
|
||||
{
|
||||
for(x=0;x<xxx;x++)
|
||||
{
|
||||
UINT8 pix = videoram[BYTE_XOR_LE(count)];
|
||||
if (pix) bitmap.pix16(y, x) = pix+0x000;
|
||||
UINT8 pix = videoramfg[BYTE_XOR_LE(count)];
|
||||
if (pix)
|
||||
{
|
||||
// first pen values seem to be special
|
||||
// see char select and shadows ingame
|
||||
// pen 0 = transparent
|
||||
// pen 1 = blend 1
|
||||
// pen 2 = blend 2
|
||||
// pen 3 = ??
|
||||
|
||||
if (pix == 0x01) // blend mode 1
|
||||
{
|
||||
UINT8 pix = videorambg[BYTE_XOR_LE(count)];
|
||||
bitmap.pix16(y, x) = pix + 0x200;
|
||||
}
|
||||
else if (pix == 0x02) // blend mode 2
|
||||
{
|
||||
UINT8 pix = videorambg[BYTE_XOR_LE(count)];
|
||||
bitmap.pix16(y, x) = pix + 0x100;
|
||||
}
|
||||
else
|
||||
{
|
||||
bitmap.pix16(y, x) = pix + 0x000;
|
||||
}
|
||||
}
|
||||
count++;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
for (int i = 0; i < 0x8000; i++)
|
||||
{
|
||||
@ -183,8 +212,8 @@ UINT32 ttchamp_state::screen_update_ttchamp(screen_device &screen, bitmap_ind16
|
||||
// I think it actually does more blit operations with
|
||||
// different bits of m_port10 set to redraw the backgrounds using the video ram data as a source rather than ROM - notice the garbage you see behind 'sprites' right now
|
||||
// this method also removes the text layer, which we don't want
|
||||
m_videoram1[i] = 0x0000;
|
||||
m_videoram2[i] = 0x0000;
|
||||
// m_videoram1[i] = 0x0000;
|
||||
// m_videoram2[i] = 0x0000;
|
||||
}
|
||||
|
||||
return 0;
|
||||
@ -199,10 +228,6 @@ WRITE16_MEMBER(ttchamp_state::paloff_w)
|
||||
|
||||
WRITE16_MEMBER(ttchamp_state::paldat_w)
|
||||
{
|
||||
// maybe 4 layers of 0x100 each?
|
||||
// middle palettes seem to have special meaning tho, maybe blending? it's a darker copy ingame, and red/blue shades on char select
|
||||
// based on screenshot references the highlighted player portraits should be appear in shades of red/blue
|
||||
|
||||
// 0x8000 of offset is sometimes set
|
||||
m_palette->set_pen_color(m_paloff & 0x3ff,pal5bit(data>>0),pal5bit(data>>5),pal5bit(data>>10));
|
||||
}
|
||||
@ -216,7 +241,7 @@ READ16_MEMBER(ttchamp_state::ttchamp_mem_r)
|
||||
if ((m_port10&0xf) == 0x00)
|
||||
vram = m_videoram0;
|
||||
else if ((m_port10&0xf) == 0x01)
|
||||
vram = m_videoram1;
|
||||
vram = m_videoram2;
|
||||
else if ((m_port10&0xf) == 0x03)
|
||||
vram = m_videoram2;
|
||||
else
|
||||
@ -251,7 +276,7 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
|
||||
if ((m_port10&0xf) == 0x00)
|
||||
vram = m_videoram0;
|
||||
else if ((m_port10&0xf) == 0x01)
|
||||
vram = m_videoram1;
|
||||
vram = m_videoram2;
|
||||
else if ((m_port10&0xf) == 0x03)
|
||||
vram = m_videoram2;
|
||||
else
|
||||
@ -272,8 +297,6 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
|
||||
{
|
||||
// printf("%06x: spider_blitter_w %08x %04x %04x (init2) (width?)\n", space.device().safe_pc(), offset * 2, data, mem_mask);
|
||||
m_spriteswidth = offset & 0xff;
|
||||
if (m_spriteswidth == 0)
|
||||
m_spriteswidth = 80;
|
||||
|
||||
m_spritesinit = 0;
|
||||
|
||||
@ -303,22 +326,30 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
|
||||
|
||||
for (int i = 0; i < m_spriteswidth; i++)
|
||||
{
|
||||
UINT8 data;
|
||||
|
||||
data = (src[(m_spritesaddr * 2) + 1]);
|
||||
|
||||
if (data)
|
||||
vram[offset] = (vram[offset] & 0x00ff) | data << 8;
|
||||
if ((m_port10 & 0xf) == 0x01) // this is set when moving objects are cleared, although not screen clears?
|
||||
{
|
||||
vram[offset] = 0x0000;
|
||||
offset++;
|
||||
}
|
||||
else
|
||||
{
|
||||
UINT8 data;
|
||||
|
||||
data = (src[(m_spritesaddr * 2) + 1]);
|
||||
|
||||
if (data)
|
||||
vram[offset] = (vram[offset] & 0x00ff) | data << 8;
|
||||
|
||||
|
||||
data = src[(m_spritesaddr*2)];
|
||||
|
||||
if (data)
|
||||
vram[offset] = (vram[offset] & 0xff00) | data;
|
||||
data = src[(m_spritesaddr * 2)];
|
||||
|
||||
if (data)
|
||||
vram[offset] = (vram[offset] & 0xff00) | data;
|
||||
|
||||
|
||||
m_spritesaddr ++;
|
||||
offset++;
|
||||
m_spritesaddr++;
|
||||
offset++;
|
||||
}
|
||||
|
||||
offset &= 0x7fff;
|
||||
}
|
||||
@ -356,6 +387,14 @@ WRITE16_MEMBER(ttchamp_state::port10_w)
|
||||
WRITE16_MEMBER(ttchamp_state::port20_w)
|
||||
{
|
||||
printf("%06x: port20_w %04x %04x\n", space.device().safe_pc(), data, mem_mask);
|
||||
// seems to somehow be tied to layer clear
|
||||
// might also depend on layer selected with 0x10 tho? written after it
|
||||
for (int i = 0; i < 0x8000; i++)
|
||||
{
|
||||
// m_videoram0[i] = 0x0000;
|
||||
m_videoram2[i] = 0x0000;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
WRITE16_MEMBER(ttchamp_state::port62_w)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user