mirror of
https://github.com/holub/mame
synced 2025-05-24 23:05:32 +03:00
remove obsolete debug stuff + try to understand vreg 0xfc4 more
This commit is contained in:
Michaël Banaan Ananas
parent
b306854d70
commit
d023f3f460
@ -7,15 +7,14 @@
|
||||
Taito custom chips on this hardware:
|
||||
- TC0640FIO : I/O
|
||||
- TC0770CMU : Math co-processor?
|
||||
- TC0780FPA x 2 : Polygon renderer?
|
||||
- TC0780FPA x 2 : Polygon/Texture renderer?
|
||||
- TC0840GLU : 2D graphics?
|
||||
- TC0870HVP : Vector processor?
|
||||
- TC0870HVP : Vertex processor?
|
||||
|
||||
TODO:
|
||||
- dendego intro object RAM usage has various gfx bugs (check video file)
|
||||
- dendego title screen builds up and it shouldn't
|
||||
- dendego attract mode train doesn't ride, the doors light doesn't turn on.
|
||||
- dendego2 shows a debug string during gameplay? it also shows up in the 2nd demo run.
|
||||
- landgear has some weird crashes (after playing one round, after a couple of loops in attract mode) (needs testing -AS)
|
||||
- landgear has huge 3d problems on gameplay (CPU comms?)
|
||||
- dangcurv DSP program crashes very soon due to undumped rom, so no 3d is currently shown.
|
||||
|
||||
@ -51,8 +51,6 @@ public:
|
||||
bitmap_ind16 m_framebuffer;
|
||||
bitmap_ind16 m_zbuffer;
|
||||
|
||||
//int debug_tex_pal;
|
||||
|
||||
int m_gfx_index;
|
||||
|
||||
UINT32 *m_char_ram;
|
||||
|
||||
@ -101,9 +101,28 @@ WRITE32_MEMBER(taitojc_state::taitojc_char_w)
|
||||
1 and 2 for each bank). Then dwords 2 and 3 should presumably configure bank 1 to a bigger
|
||||
(doubled?) height and width and a different x/y start point.
|
||||
|
||||
0xfc0-0xfff is global vregs. 0xfc6 bit 13 is used to swap between bank 0 and bank 1.
|
||||
|
||||
0xfc0-0xfff is global vregs. 0xfc4 bit 13 is used to swap between bank 0 and bank 1?
|
||||
It's unknown at current time how bank 2 should show up.
|
||||
|
||||
fc0 00000000 always
|
||||
fc4 c01f0000 boot-up, testmode, sidebs always, sidebs2 always
|
||||
c0100000 landgear in-game, dendego2 in-game
|
||||
c0310000 dendego in-game
|
||||
c0312000 dendego intro 3d parts
|
||||
c031f000 dendego disclaimer screen (only for a few frames)
|
||||
|
||||
fc4 11000000 00------ ----0000 00000000 always 0/1
|
||||
-------- --xx---- -------- -------- ?
|
||||
-------- ----xxxx -------- -------- one of these probably disables textlayer, unknown function otherwise
|
||||
-------- -------- xxxx---- -------- object bank related
|
||||
|
||||
fc8 40000000 always
|
||||
fcc 00000000 always
|
||||
fd0 c0000000 always
|
||||
...
|
||||
ffc c0000000 always
|
||||
|
||||
*/
|
||||
|
||||
static void draw_object(running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, UINT32 w1, UINT32 w2, UINT8 bank_type)
|
||||
@ -325,74 +344,28 @@ VIDEO_START( taitojc )
|
||||
machine.primary_screen->register_screen_bitmap(state->m_zbuffer);
|
||||
}
|
||||
|
||||
//static int tick = 0;
|
||||
SCREEN_UPDATE_IND16( taitojc )
|
||||
{
|
||||
taitojc_state *state = screen.machine().driver_data<taitojc_state>();
|
||||
|
||||
#if 0
|
||||
tick++;
|
||||
if( tick >= 5 ) {
|
||||
tick = 0;
|
||||
|
||||
if( screen.machine().input().code_pressed(KEYCODE_O) )
|
||||
debug_tex_pal++;
|
||||
|
||||
if( screen.machine().input().code_pressed(KEYCODE_I) )
|
||||
debug_tex_pal--;
|
||||
|
||||
debug_tex_pal &= 0x7f;
|
||||
}
|
||||
#endif
|
||||
|
||||
bitmap.fill(0, cliprect);
|
||||
|
||||
/* 0xf000 used on Densha de Go disclaimer screen(s) (disable object RAM?) */
|
||||
if((state->m_objlist[0xfc4/4] & 0x0000ffff) != 0x0000 && (state->m_objlist[0xfc4/4] & 0x0000ffff) != 0x2000 && (state->m_objlist[0xfc4/4] & 0x0000ffff) != 0xf000 )
|
||||
popmessage("%08x, contact MAMEdev",state->m_objlist[0xfc4/4]);
|
||||
|
||||
//popmessage("%08x %08x %08x %08x",state->m_objlist[0xd20/4],state->m_objlist[0xd24/4],state->m_objlist[0xd28/4],state->m_objlist[0xd2c/4]);
|
||||
|
||||
// low priority objects
|
||||
draw_object_bank(screen.machine(), bitmap, cliprect, 0, 0);
|
||||
draw_object_bank(screen.machine(), bitmap, cliprect, 1, 0);
|
||||
draw_object_bank(screen.machine(), bitmap, cliprect, 2, 0);
|
||||
|
||||
// 3D layer
|
||||
copybitmap_trans(bitmap, state->m_framebuffer, 0, 0, 0, 0, cliprect, 0);
|
||||
|
||||
// high priority objects
|
||||
draw_object_bank(screen.machine(), bitmap, cliprect, 0, 1);
|
||||
draw_object_bank(screen.machine(), bitmap, cliprect, 1, 1);
|
||||
draw_object_bank(screen.machine(), bitmap, cliprect, 2, 1);
|
||||
|
||||
state->m_tilemap->draw(bitmap, cliprect, 0,0);
|
||||
|
||||
#if 0
|
||||
if (debug_tex_pal > 0)
|
||||
{
|
||||
int j;
|
||||
for (j=cliprect.min_y; j <= cliprect.max_y; j++)
|
||||
{
|
||||
UINT16 *d = &bitmap.pix16(j);
|
||||
int index = 2048 * j;
|
||||
|
||||
for (i=cliprect.min_x; i <= cliprect.max_x; i++)
|
||||
{
|
||||
UINT8 t = state->m_texture[index+i];
|
||||
UINT32 color;
|
||||
|
||||
//color = 0xff000000 | (t << 16) | (t << 8) | (t);
|
||||
color = (state->m_debug_tex_pal << 8) | t;
|
||||
|
||||
d[i] = color;
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
char string[200];
|
||||
sprintf(string, "Texture palette %d", debug_tex_pal);
|
||||
popmessage("%s", string);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
// text layer
|
||||
if (state->m_objlist[0xfc4/4] & 0x10000)
|
||||
state->m_tilemap->draw(bitmap, cliprect, 0, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -430,18 +403,9 @@ static void render_solid_scan(void *dest, INT32 scanline, const poly_extent *ext
|
||||
int color = extent->param[1].start;
|
||||
float dz = extent->param[0].dpdx;
|
||||
UINT16 *fb = &destmap->pix16(scanline);
|
||||
UINT16 *zb;// = &extra->zbuffer->pix16(scanline);
|
||||
int x;
|
||||
UINT16 *zb = &extra->zbuffer->pix16(scanline);
|
||||
|
||||
// avoid crash in dendego2
|
||||
//if (!extra->zbuffer)
|
||||
//{
|
||||
// return;
|
||||
//}
|
||||
|
||||
zb = &extra->zbuffer->pix16(scanline);
|
||||
|
||||
for (x = extent->startx; x < extent->stopx; x++)
|
||||
for (int x = extent->startx; x < extent->stopx; x++)
|
||||
{
|
||||
int iz = (int)z & 0xffff;
|
||||
|
||||
@ -464,18 +428,9 @@ static void render_shade_scan(void *dest, INT32 scanline, const poly_extent *ext
|
||||
float dz = extent->param[0].dpdx;
|
||||
float dcolor = extent->param[1].dpdx;
|
||||
UINT16 *fb = &destmap->pix16(scanline);
|
||||
UINT16 *zb;
|
||||
int x;
|
||||
UINT16 *zb = &extra->zbuffer->pix16(scanline);
|
||||
|
||||
// avoid crash in landgear/dangcurv
|
||||
//if (!extra->zbuffer)
|
||||
//{
|
||||
// return;
|
||||
//}
|
||||
|
||||
zb = &extra->zbuffer->pix16(scanline);
|
||||
|
||||
for (x = extent->startx; x < extent->stopx; x++)
|
||||
for (int x = extent->startx; x < extent->stopx; x++)
|
||||
{
|
||||
int ic = (int)color & 0xffff;
|
||||
int iz = (int)z & 0xffff;
|
||||
@ -509,9 +464,8 @@ static void render_texture_scan(void *dest, INT32 scanline, const poly_extent *e
|
||||
int tex_wrap_y = extra->tex_wrap_y;
|
||||
int tex_base_x = extra->tex_base_x;
|
||||
int tex_base_y = extra->tex_base_y;
|
||||
int x;
|
||||
|
||||
for (x = extent->startx; x < extent->stopx; x++)
|
||||
for (int x = extent->startx; x < extent->stopx; x++)
|
||||
{
|
||||
int iu, iv;
|
||||
UINT8 texel;
|
||||
@ -847,13 +801,7 @@ void taitojc_render_polygons(running_machine &machine, UINT16 *polygon_fifo, int
|
||||
void taitojc_clear_frame(running_machine &machine)
|
||||
{
|
||||
taitojc_state *state = machine.driver_data<taitojc_state>();
|
||||
rectangle cliprect;
|
||||
|
||||
cliprect.min_x = 0;
|
||||
cliprect.min_y = 0;
|
||||
cliprect.max_x = machine.primary_screen->width() - 1;
|
||||
cliprect.max_y = machine.primary_screen->height() - 1;
|
||||
|
||||
state->m_framebuffer.fill(0, cliprect);
|
||||
state->m_zbuffer.fill(0xffff, cliprect);
|
||||
state->m_framebuffer.fill(0, machine.primary_screen->visible_area());
|
||||
state->m_zbuffer.fill(0xffff, machine.primary_screen->visible_area());
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user