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This commit is contained in:
David Haywood 2013-03-01 17:14:52 +00:00
parent 5b5c42b98b
commit f279b45ce4
1 changed files with 43 additions and 7 deletions
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50
src/mame/drivers/gunpey.c
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@ -217,7 +217,7 @@ public:
TIMER_DEVICE_CALLBACK_MEMBER(gunpey_scanline);
TIMER_CALLBACK_MEMBER(blitter_end);
void gunpey_irq_check(UINT8 irq_type);
UINT8 draw_gfx(bitmap_ind16 &bitmap,const rectangle &cliprect,int count);
UINT8 draw_gfx(running_machine &machine, bitmap_ind16 &bitmap,const rectangle &cliprect,int count);
UINT16 m_vram_bank;
@ -230,7 +230,7 @@ void gunpey_state::video_start()
m_blit_buffer = auto_alloc_array(machine(), UINT16, 512*512);
}
UINT8 gunpey_state::draw_gfx(bitmap_ind16 &bitmap,const rectangle &cliprect,int count)
UINT8 gunpey_state::draw_gfx(running_machine &machine, bitmap_ind16 &bitmap,const rectangle &cliprect,int count)
{
int x,y;
int bpp_sel;
@ -239,6 +239,25 @@ UINT8 gunpey_state::draw_gfx(bitmap_ind16 &bitmap,const rectangle &cliprect,int
int color;
UINT8 *vram = memregion("vram")->base();
// +0 +1 +2 +3 +4 +5 +6 +7
// cccc cccc e--b b--- | xxxx ---- u--- ---- | yyyy ---- --XX XXXX | nnnn nnnn ---Y YYYY | mmmm mmmm -MMM -NNN | hhhh hhhh wwww wwww | ---- ---- ---- ---- | ---- ---- ---- ---- |
// c = color palette
// e = END marker
// b = bpp select
// x = LSB x source
// X = MSB x source
// y = LSB y source
// Y = MSB y source
// n = LSB X DRAW position
// N = MSB X DRAW position
// m = LSB Y DRAW position
// M = MSB Y DRAW position
// h = height
// w = width
// u = unknown, set on text, maybe 'solid' ?
if(!(m_wram[count+0] & 1))
{
x = (m_wram[count+3] >> 8) | ((m_wram[count+4] & 0x03) << 8);
@ -253,8 +272,8 @@ UINT8 gunpey_state::draw_gfx(bitmap_ind16 &bitmap,const rectangle &cliprect,int
//UINT32 col = 0xffffff;
// UINT32 val = (m_wram[count+1] << 16) | ((m_wram[count+2]));
int xsource = ((m_wram[count+2] & 0x00ff) << 4) | ((m_wram[count+1] & 0xf000) >> 12);
int ysource = ((m_wram[count+2] & 0xf000) >> 12)| ((m_wram[count+3] & 0x00ff) << 4);
int xsource = ((m_wram[count+2] & 0x003f) << 4) | ((m_wram[count+1] & 0xf000) >> 12);
int ysource = ((m_wram[count+3] & 0x001f) << 4) | ((m_wram[count+2] & 0xf000) >> 12);
//printf("%08x %04x %04x\n", val, m_wram[count+1],m_wram[count+2] );
// UINT16 xsource = (m_wram[count+2] & 0x00ff << 4) | (m_wram[count+1] & 0xf000 >> 12);
//xsource<<=1;
@ -262,6 +281,21 @@ UINT8 gunpey_state::draw_gfx(bitmap_ind16 &bitmap,const rectangle &cliprect,int
xsource<<=1;
ysource <<=2;
UINT8 testhack = vram[((((ysource+0)&0x7ff)*0x800) + ((xsource+0)&0x7ff))];
UINT8 testhack2 = vram[((((ysource+0)&0x7ff)*0x800) + ((xsource+1)&0x7ff))];
//if (m_wram[count+1] & 0x0080) // set on text
// color = machine.rand()&0xf;
printf("sprite %04x %04x %04x %04x %04x %04x %04x %04x\n", m_wram[count+0], m_wram[count+1], m_wram[count+2], m_wram[count+3], m_wram[count+4], m_wram[count+5], m_wram[count+6], m_wram[count+7]);
if ((testhack2 & 0x0f) == 0x08)
return m_wram[count+0] & 0x80;
printf("testhack1 %02x %02x\n", testhack, testhack2);
if(bpp_sel == 0x00) // 4bpp
{
for(int yi=0;yi<height;yi++)
@ -273,6 +307,8 @@ UINT8 gunpey_state::draw_gfx(bitmap_ind16 &bitmap,const rectangle &cliprect,int
UINT32 col_offs;
UINT16 color_data;
pix = (data & 0x0f);
col_offs = ((pix + color*0x10) & 0xff) << 1;
col_offs+= ((pix + color*0x10) >> 8)*0x800;
@ -355,7 +391,7 @@ UINT32 gunpey_state::screen_update_gunpey(screen_device &screen, bitmap_ind16 &b
/* last 4 entries are special, skip them for now. */
for(count = vram_bank/2;count<(vram_bank+0x1000)/2;count+=0x10/2)
{
end_mark = draw_gfx(bitmap,cliprect,count);
end_mark = draw_gfx(screen.machine(), bitmap,cliprect,count);
if(end_mark == 0x80)
break;
@ -363,7 +399,7 @@ UINT32 gunpey_state::screen_update_gunpey(screen_device &screen, bitmap_ind16 &b
for(count = (vram_bank+0x1000)/2;count<(vram_bank+0x2000)/2;count+=0x10/2)
{
end_mark = draw_gfx(bitmap,cliprect,count);
end_mark = draw_gfx(screen.machine(), bitmap,cliprect,count);
if(end_mark == 0x80)
break;
@ -449,7 +485,7 @@ WRITE8_MEMBER(gunpey_state::gunpey_blitter_w)
int ysize = blit_ram[0x0e]+1;
// int color,color_offs;
printf("%04x %04x %04x %04x\n",srcx,srcy,dstx,dsty);
// printf("%04x %04x %04x %04x\n",srcx,srcy,dstx,dsty);
/*
printf("%02x %02x %02x %02x| (X SRC 4: %02x 5: %02x (val %04x)) (Y SRC 6: %02x 7: %02x (val %04x)) | (X DEST 8: %02x 9: %02x (val %04x)) (Y DEST a: %02x b: %02x (val %04x)) | %02x %02x %02x %02x\n"