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k007121: correct 32x32 sprite code mask

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hap 2024-11-24 00:43:28 +01:00
parent a7fc1e3a66
commit 350d81d19a
1 changed files with 38 additions and 17 deletions
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55
src/mame/konami/k007121.cpp
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@ -1,6 +1,7 @@
// license:BSD-3-Clause
// copyright-holders:Fabio Priuli, Acho A. Tang, R. Belmont
/*
Konami 007121
------
This is an interesting beast. It is an evolution of the 005885, with more
@ -110,6 +111,7 @@ control registers
-----x-- firq enable
----x--- flip screen
---x---- unknown (contra, labyrunr)
*/
#include "emu.h"
@ -172,7 +174,7 @@ void k007121_device::ctrl_w(offs_t offset, uint8_t data)
switch (offset)
{
case 6:
/* palette bank change */
// palette bank change
if ((m_ctrlram[offset] & 0x30) != (data & 0x30))
machine().tilemap().mark_all_dirty();
break;
@ -216,7 +218,7 @@ void k007121_device::sprites_draw( bitmap_ind16 &bitmap, const rectangle &clipre
//num = (k007121->ctrlram[0x03] & 0x40) ? 0x80 : 0x40; /* WRONG!!! (needed by combatsc) */
int inc = 5;
/* when using priority buffer, draw front to back */
// when using priority buffer, draw front to back
if (pri_mask != (uint32_t)-1)
{
source += (num - 1)*inc;
@ -225,13 +227,13 @@ void k007121_device::sprites_draw( bitmap_ind16 &bitmap, const rectangle &clipre
for (int i = 0; i < num; i++)
{
int number = source[0]; /* sprite number */
int sprite_bank = source[1] & 0x0f; /* sprite bank */
int sx = source[3]; /* vertical position */
int sy = source[2]; /* horizontal position */
int attr = source[4]; /* attributes */
int xflip = source[4] & 0x10; /* flip x */
int yflip = source[4] & 0x20; /* flip y */
int number = source[0];
int sprite_bank = source[1] & 0x0f;
int sx = source[3];
int sy = source[2];
int attr = source[4];
int xflip = source[4] & 0x10;
int yflip = source[4] & 0x20;
int color = base_color + ((source[1] & 0xf0) >> 4);
int width, height;
int transparent_mask;
@ -246,8 +248,7 @@ void k007121_device::sprites_draw( bitmap_ind16 &bitmap, const rectangle &clipre
number = number << 2;
number += (sprite_bank >> 2) & 3;
/* Flak Attack doesn't use a lookup PROM, it maps the color code directly */
/* to a palette entry */
// Flak Attack doesn't use a lookup PROM, it maps the color code directly to a palette entry
// TODO: check if it's true or callback-ize this one and remove the per-game hack.
if (is_flakatck)
transparent_mask = 1 << 0;
@ -258,12 +259,32 @@ void k007121_device::sprites_draw( bitmap_ind16 &bitmap, const rectangle &clipre
switch (attr & 0xe)
{
case 0x06: width = height = 1; break;
case 0x04: width = 1; height = 2; number &= (~2); break;
case 0x02: width = 2; height = 1; number &= (~1); break;
case 0x00: width = height = 2; number &= (~3); break;
case 0x08: width = height = 4; number &= (~3); break;
default: width = 1; height = 1;
case 0x06:
width = height = 1;
break;
case 0x04:
width = 1; height = 2;
number &= ~2;
break;
case 0x02:
width = 2; height = 1;
number &= ~1;
break;
case 0x00:
width = height = 2;
number &= ~3;
break;
case 0x08:
width = height = 4;
number &= ~0xf;
break;
default:
width = 1; height = 1;
//logerror("Unknown sprite size %02x\n", attr & 0xe);
break;
}