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Further fixes with "Il Pagliaccio" blitter: [Angelo Salese]

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* Fixed Transparency pens;
* Fixed color pens for the charset;

===========================

Actually, only the "layer clearance" is puzzling me out, when it's enabled the h/w values are 0.
Really weird...
This commit is contained in:
Angelo Salese 2009-02-03 00:39:19 +00:00
parent 6144170f54
commit aa60e074cc
1 changed files with 29 additions and 6 deletions
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35
src/mame/drivers/ilpag.c
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@ -42,7 +42,7 @@ Note
#include "cpu/z80/z80.h"
#include "sound/dac.h"
static UINT16 *blit_romaddr,*blit_attr1_ram,*blit_dst_ram_loword,*blit_attr2_ram,*blit_dst_ram_hiword,*blit_vregs;
static UINT16 *blit_romaddr,*blit_attr1_ram,*blit_dst_ram_loword,*blit_attr2_ram,*blit_dst_ram_hiword,*blit_vregs,*blit_transpen;
static UINT8 *blit_buffer;
static VIDEO_START(ilpag)
@ -120,6 +120,12 @@ static WRITE16_HANDLER( paletteram_io_w )
}
}
/*
(TODO: register names should be properly renamed)
"transpen" 8/2 is for layer clearance;
"transpen" 10/2 is the trasparency pen;
"vregs" are pen selects, they select the proper color to render, and are tied to the first three gfx offsets;
*/
static WRITE16_HANDLER( blit_copy_w )
{
UINT8 *blit_rom = memory_region(space->machine, "blit_data");
@ -128,8 +134,10 @@ static WRITE16_HANDLER( blit_copy_w )
int x,y,x_size,y_size;
UINT32 src;
printf("blit copy %04x %04x %04x %04x %04x\n", blit_romaddr[0], blit_attr1_ram[0], blit_dst_ram_loword[0], blit_attr2_ram[0], blit_dst_ram_hiword[0] );
printf("blit vregs %04x %04x %04x\n",blit_vregs[0/2],blit_vregs[2/2],blit_vregs[4/2]);
// printf("blit copy %04x %04x %04x %04x %04x\n", blit_romaddr[0], blit_attr1_ram[0], blit_dst_ram_loword[0], blit_attr2_ram[0], blit_dst_ram_hiword[0] );
// printf("blit vregs %04x %04x %04x\n",blit_vregs[0/2],blit_vregs[2/2],blit_vregs[4/2]);
// printf("blit transpen %04x %04x %04x %04x %04x %04x %04x %04x\n",blit_transpen[0/2],blit_transpen[2/2],blit_transpen[4/2],blit_transpen[6/2],
// blit_transpen[8/2],blit_transpen[10/2],blit_transpen[12/2],blit_transpen[14/2]);
blit_dst_xpos = (blit_dst_ram_loword[0] & 0x00ff)*2;
blit_dst_ypos = ((blit_dst_ram_loword[0] & 0xff00)>>8);
@ -139,6 +147,8 @@ static WRITE16_HANDLER( blit_copy_w )
src = blit_romaddr[0] | (blit_attr1_ram[0] & 0xf00)<<8;
/*TODO,sizes are 0?*/
// if(blit_transpen[0x8/2] & 0x100) { x_size = 512; y_size = 256; }
for(y=0;y<y_size;y++)
{
@ -146,13 +156,26 @@ static WRITE16_HANDLER( blit_copy_w )
{
int drawx = (blit_dst_xpos+x)&0x1ff;
int drawy = (blit_dst_ypos+y)&0x1ff;
if(blit_transpen[0x8/2] & 0x100)
blit_buffer[drawy*512+drawx] = 0;
else
{
UINT8 pen_helper;
pen_helper = blit_rom[src] & 0xff;
if(blit_transpen[0xa/2] & 0x100) //transparency pen
{
if(pen_helper)
blit_buffer[drawy*512+drawx] = ((pen_helper & 0xff) <= 2) ? ((blit_vregs[pen_helper] & 0xf00)>>8) : blit_rom[src];
}
else
blit_buffer[drawy*512+drawx] = ((pen_helper & 0xff) <= 2) ? ((blit_vregs[pen_helper] & 0xf00)>>8) : blit_rom[src];
}
blit_buffer[drawy*512+drawx] = blit_rom[src];
src++;
}
}
//blit_buffer[blit_dst_xpos+(x*0x100)+(y)] = blit_ram[blit_romaddr[0]+(x*0x100)+(y)];
}
/*bit 0 is the blitter busy flag*/
@ -197,7 +220,7 @@ static ADDRESS_MAP_START( ilpag_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x225000, 0x225fff) AM_RAM // NVRAM?
AM_RANGE(0x900000, 0x900005) AM_WRITE( paletteram_io_w ) //RAMDAC
AM_RANGE(0x980000, 0x98000f) AM_RAM //probably transparency pens
AM_RANGE(0x980000, 0x98000f) AM_RAM AM_BASE(&blit_transpen)//probably transparency pens
AM_RANGE(0x990000, 0x990005) AM_RAM AM_BASE(&blit_vregs)
AM_RANGE(0x998000, 0x998001) AM_RAM AM_BASE(&blit_romaddr)
AM_RANGE(0x9a0000, 0x9a0001) AM_RAM AM_BASE(&blit_attr1_ram)