segas32 use opaque blending by default - dbzvrvs backgrounds working. (#2211 )

* Update segas32.c * Update segas32.c * Update .gitlab-ci.yml * Update segas32.c * Update segas32.h * Update segas32.c * Update segas32.c * Update .gitlab-ci.yml
Merge pull request #2210 from libretro/arcadez2003-patch-11
2026-11-07 12:28:04 -10:00 · 2026-11-07 07:35:08 -05:00 · 2026-11-06 21:07:03 +00:00 · 2026-11-06 21:06:47 +00:00 · 2026-11-06 21:06:32 +00:00 · 2026-11-06 20:59:50 +00:00
5 changed files with 311 additions and 16 deletions
@@ -75,6 +75,8 @@ TODO:

 VIDEO_UPDATE( inufuku );
 VIDEO_START( inufuku );
+void dunk_buffer_sprites(void);
+int inufuku_is_dunk;

 data16_t *inufuku_bg_videoram;
 data16_t *inufuku_bg_rasterram;
@@ -104,17 +106,19 @@ static WRITE16_HANDLER( inufuku_soundcommand_w )
 	if (ACCESSING_LSB) {

 		/* hack... sound doesn't work otherwise */
-		if (data == 0x08) return;
+		if (!inufuku_is_dunk && data == 0x08) return;

 		pending_command = 1;
 		soundlatch_w(0, data & 0xff);
-		cpu_set_irq_line(1, IRQ_LINE_NMI, PULSE_LINE);
+		cpu_set_irq_line(1, IRQ_LINE_NMI, inufuku_is_dunk ? ASSERT_LINE : PULSE_LINE);
 	}
 }

 static WRITE_HANDLER( pending_command_clear_w )
 {
 	pending_command = 0;
+	if (inufuku_is_dunk)
+		cpu_set_irq_line(1, IRQ_LINE_NMI, CLEAR_LINE);
 }

 static WRITE_HANDLER( inufuku_soundrombank_w )
@@ -133,15 +137,27 @@ static WRITE_HANDLER( inufuku_soundrombank_w )

 static MACHINE_INIT( inufuku )
 {
-	;
+	if (inufuku_is_dunk)
+	{
+		pending_command = 0;
+		inufuku_soundrombank_w(0, 0);
+		cpu_set_irq_line(1, IRQ_LINE_NMI, CLEAR_LINE);
+	}
 }

 static DRIVER_INIT( inufuku )
 {
+	inufuku_is_dunk = 0;
 	pending_command = 1;
 	inufuku_soundrombank_w(0, 0);
 }

+static DRIVER_INIT( dunk )
+{
+	inufuku_is_dunk = 1;
+	pending_command = 0;
+	inufuku_soundrombank_w(0, 0);
+}

 /******************************************************************************

@@ -223,6 +239,50 @@ static MEMORY_WRITE16_START( inufuku_writemem )
 	{ 0xfd0000, 0xfdffff, MWA16_RAM },				/* work ram*/
 MEMORY_END

+static MEMORY_READ16_START( dunk_readmem )
+	{ 0x000000, 0x0fffff, MRA16_ROM },				/* main rom*/
+
+	{ 0x180000, 0x180001, input_port_0_word_r },
+	{ 0x180002, 0x180003, input_port_1_word_r },
+	{ 0x180004, 0x180005, input_port_2_word_r },
+	{ 0x180006, 0x180007, input_port_3_word_r },
+	{ 0x180008, 0x180009, inufuku_eeprom_r },		/* eeprom + input_port_4_word_r*/
+	{ 0x18000a, 0x18000b, input_port_5_word_r },
+
+	{ 0x300000, 0x301fff, MRA16_RAM },				/* palette ram*/
+	{ 0x400000, 0x401fff, inufuku_bg_videoram_r },	/* bg ram*/
+	{ 0x402000, 0x403fff, inufuku_text_videoram_r },/* text ram*/
+	{ 0x404000, 0x40ffff, MRA16_RAM },
+	{ 0x580000, 0x581fff, MRA16_RAM },				/* sprite table + sprite attribute*/
+	{ 0x600000, 0x61ffff, MRA16_RAM },				/* cell table*/
+
+	{ 0x800000, 0xbfffff, MRA16_ROM },				/* data rom*/
+	{ 0xfd0000, 0xfdffff, MRA16_RAM },				/* work ram*/
+MEMORY_END
+
+static MEMORY_WRITE16_START( dunk_writemem )
+	{ 0x000000, 0x0fffff, MWA16_ROM },				/* main rom*/
+
+	{ 0x100000, 0x100007, MWA16_NOP },				/* ?*/
+	{ 0x200000, 0x200001, inufuku_eeprom_w },		/* eeprom*/
+	{ 0x280000, 0x280001, inufuku_soundcommand_w },	/* sound command*/
+
+	{ 0x300000, 0x301fff, paletteram16_xGGGGGBBBBBRRRRR_word_w, &paletteram16 },		/* palette ram*/
+	{ 0x380000, 0x3801ff, MWA16_RAM, &inufuku_bg_rasterram },							/* bg raster ram*/
+	{ 0x400000, 0x401fff, inufuku_bg_videoram_w, &inufuku_bg_videoram },				/* bg ram*/
+	{ 0x402000, 0x403fff, inufuku_text_videoram_w, &inufuku_text_videoram },			/* text ram*/
+	{ 0x404000, 0x40ffff, MWA16_RAM },
+	{ 0x580000, 0x581fff, MWA16_RAM, &inufuku_spriteram1, &inufuku_spriteram1_size },	/* sprite table + sprite attribute*/
+	{ 0x600000, 0x61ffff, MWA16_RAM, &inufuku_spriteram2 },								/* cell table*/
+
+	{ 0x780000, 0x780013, inufuku_palettereg_w },	/* bg & text palettebank register*/
+	{ 0x7a0000, 0x7a0023, inufuku_scrollreg_w },	/* bg & text scroll register*/
+	{ 0x7e0000, 0x7e0001, MWA16_NOP },				/* ?*/
+
+	{ 0x800000, 0xbfffff, MWA16_ROM },				/* data rom*/
+	{ 0xfd0000, 0xfdffff, MWA16_RAM },				/* work ram*/
+MEMORY_END
+

 /******************************************************************************

@@ -329,6 +389,70 @@ INPUT_PORTS_START( inufuku )
 	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON4        | IPF_PLAYER3 )
 INPUT_PORTS_END

+INPUT_PORTS_START( dunk )
+	PORT_START	/* 0*/
+	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP    | IPF_PLAYER1 )
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN  | IPF_PLAYER1 )
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT  | IPF_PLAYER1 )
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_PLAYER1 )
+	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1        | IPF_PLAYER1 )
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2        | IPF_PLAYER1 )
+	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3        | IPF_PLAYER1 )
+	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON4        | IPF_PLAYER1 )
+
+	PORT_START	/* 1*/
+	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP    | IPF_PLAYER2 )
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN  | IPF_PLAYER2 )
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT  | IPF_PLAYER2 )
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_PLAYER2 )
+	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1        | IPF_PLAYER2 )
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2        | IPF_PLAYER2 )
+	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3        | IPF_PLAYER2 )
+	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON4        | IPF_PLAYER2 )
+
+	PORT_START	/* 2*/
+	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 )
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 )
+	PORT_SERVICE_NO_TOGGLE( 0x10, IP_ACTIVE_LOW )
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_TILT )
+	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )
+	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+	PORT_START	/* 3*/
+	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP    | IPF_PLAYER4 )
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN  | IPF_PLAYER4 )
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT  | IPF_PLAYER4 )
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_PLAYER4 )
+	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1        | IPF_PLAYER4 )
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2        | IPF_PLAYER4 )
+	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3        | IPF_PLAYER4 )
+	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON4        | IPF_PLAYER4 )
+
+	PORT_START	/* 4*/
+	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN3 )
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN4 )
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START3 )
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START4 )
+	PORT_DIPNAME( 0x10, 0x10, "3P/4P" )
+	PORT_DIPSETTING(    0x10, DEF_STR( Off ) )
+	PORT_DIPSETTING(    0x00, DEF_STR( On ) )
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
+	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+	PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_SPECIAL )	/* pending sound command*/
+	PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+	PORT_START	/* 5*/
+	PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP    | IPF_PLAYER3 )
+	PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN  | IPF_PLAYER3 )
+	PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT  | IPF_PLAYER3 )
+	PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT | IPF_PLAYER3 )
+	PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1        | IPF_PLAYER3 )
+	PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2        | IPF_PLAYER3 )
+	PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON3        | IPF_PLAYER3 )
+	PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON4        | IPF_PLAYER3 )
+INPUT_PORTS_END

 /******************************************************************************

@@ -360,6 +484,19 @@ static struct GfxLayout spritelayout =
 	128*8
 };

+static struct GfxLayout dunk_spritelayout =
+{
+	16, 16,
+	RGN_FRAC(1, 1),
+	4,
+	{ 0, 1, 2, 3 },
+	{ 1*4, 0*4, 3*4, 2*4, 5*4, 4*4, 7*4, 6*4,
+		9*4, 8*4, 11*4, 10*4, 13*4, 12*4, 15*4, 14*4 },
+	{ 0*64, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64,
+			8*64, 9*64, 10*64, 11*64, 12*64, 13*64, 14*64, 15*64 },
+	128*8
+};
+
 static struct GfxDecodeInfo inufuku_gfxdecodeinfo[] =
 {
 	{ REGION_GFX1, 0, &tilelayout,    0, 256*16 },	/* bg*/
@@ -368,6 +505,14 @@ static struct GfxDecodeInfo inufuku_gfxdecodeinfo[] =
 	{ -1 } /* end of array */
 };

+static struct GfxDecodeInfo dunk_gfxdecodeinfo[] =
+{
+	{ REGION_GFX1, 0, &tilelayout,    0, 256*16 },	// bg
+	{ REGION_GFX2, 0, &tilelayout,    0, 256*16 },	// text
+	{ REGION_GFX3, 0, &dunk_spritelayout,  0, 256*16 },	// sprite
+	{ -1 } /* end of array */
+};
+

 /******************************************************************************

@@ -435,6 +580,62 @@ static MACHINE_DRIVER_START( inufuku )
 MACHINE_DRIVER_END


+static INTERRUPT_GEN( dunk_interrupt )
+{
+	/* Latch the completed list before the IRQ lets the main CPU rewrite it. */
+	dunk_buffer_sprites();
+	irq1_line_hold();
+}
+
+static struct YM2610interface dunk_ym2610_interface =
+{
+	1,
+	32000000/4,							/* 8.00 MHz */
+	{ 50 },
+	{ 0 },
+	{ 0 },
+	{ 0 },
+	{ 0 },
+	{ irqhandler },
+	{ REGION_SOUND2 },
+	{ REGION_SOUND1 },
+	{ YM3012_VOL(25, MIXER_PAN_CENTER, 25, MIXER_PAN_CENTER) }
+};
+
+
+static MACHINE_DRIVER_START( dunk )
+
+	/* basic machine hardware */
+	MDRV_CPU_ADD(M68000, 32000000/2)	/* 16.00 MHz */
+	MDRV_CPU_MEMORY(dunk_readmem, dunk_writemem)
+	MDRV_CPU_VBLANK_INT(dunk_interrupt, 1)
+
+	MDRV_CPU_ADD(Z80, 32000000/4)		/* 8.00 MHz */
+	MDRV_CPU_FLAGS(CPU_AUDIO_CPU)
+	MDRV_CPU_MEMORY(inufuku_readmem_sound, inufuku_writemem_sound)
+	MDRV_CPU_PORTS(inufuku_readport_sound, inufuku_writeport_sound)
+								/* IRQs are triggered by the YM2610 */
+	MDRV_FRAMES_PER_SECOND(60)
+	MDRV_VBLANK_DURATION(2300)
+
+	MDRV_MACHINE_INIT(inufuku)
+	MDRV_NVRAM_HANDLER(93C46)
+
+	/* video hardware */
+	MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
+	MDRV_SCREEN_SIZE(2048, 256)
+	MDRV_VISIBLE_AREA(0, 319, 0, 223)
+	MDRV_GFXDECODE(dunk_gfxdecodeinfo)
+	MDRV_PALETTE_LENGTH(4096)
+
+	MDRV_VIDEO_START(inufuku)
+	MDRV_VIDEO_UPDATE(inufuku)
+
+	/* sound hardware */
+	MDRV_SOUND_ADD(YM2610, dunk_ym2610_interface)
+MACHINE_DRIVER_END
+
+
 /******************************************************************************

 	ROM definitions
@@ -466,6 +667,36 @@ ROM_START( inufuku )
 	ROM_LOAD( "lhmn5ku6.u53", 0x0000000, 0x400000, CRC(b320c5c9) SHA1(7c99da2d85597a3c008ed61a3aa5f47ad36186ec) )
 ROM_END

+ROM_START( 3on3dunk )
+	ROM_REGION( 0x0c00000, REGION_CPU1, 0 )
+	ROM_LOAD16_WORD_SWAP( "prog0_2_4_usa.u147", 0x0000000, 0x080000, CRC(957924ab) SHA1(6fe8ca711d11239310d58188e9d6d28cd27bc5af) )
+	ROM_LOAD16_WORD_SWAP( "prog1_2_4_usa.u146", 0x0080000, 0x080000, CRC(2479e236) SHA1(729e6c85d34d6925c8d6557b138e2bed43e1de6a) )
+	ROM_LOAD16_WORD_SWAP( "lh535l5y.u148",      0x0800000, 0x400000, CRC(aa33e02a) SHA1(86381ecf18fba9065cbc02112751c435bbf8b8b4) )
+
+	ROM_REGION( 0x0030000, REGION_CPU2, 0 )
+	ROM_LOAD( "sound_prog_97_1_13.u107", 0x0000000, 0x020000, CRC(d9d42805) SHA1(ab5cb7c141d9c9ed5121ba4dbc1d0fa187bd9f68) )
+	ROM_RELOAD( 0x010000, 0x020000 )
+
+	ROM_REGION( 0x0400000, REGION_GFX1, ROMREGION_DISPOSE )
+	ROM_LOAD16_WORD_SWAP( "lh525kwy.u40", 0x0000000, 0x400000, CRC(aaa426d1) SHA1(2f9a2981f336caf3188baec9a34f61452dee2203) )
+
+	ROM_REGION( 0x0400000, REGION_GFX2, ROMREGION_DISPOSE )
+	ROM_LOAD16_WORD_SWAP( "lh537nn4.u8",  0x0000000, 0x200000, CRC(2b7be1d8) SHA1(aac274a8f4028db7429478601a1761e61ab4f9a2) )
+
+	ROM_REGION( 0x2000000, REGION_GFX3, ROMREGION_DISPOSE )
+	ROM_LOAD( "lh535kwz.u34", 0x0000000, 0x400000, CRC(7372ce78) SHA1(ed2a861986357fad7ef983750cd906c3d722b862) )
+	ROM_LOAD( "lh535kv0.u36", 0x0400000, 0x400000, CRC(247e5741) SHA1(8d71d964791fb4b86e390bcdf7744f616d6357b1) )
+	ROM_LOAD( "lh535kv2.u38", 0x0800000, 0x400000, CRC(76449b1e) SHA1(b63d50c6f0dc91dc94dbcdda9842598529c1c26e) )
+	ROM_LOAD( "lh537nn5.u20", 0x0c00000, 0x200000, CRC(f457cd3b) SHA1(cc13f5dc44e4675c1074a365b10f34e684817d81) )
+	ROM_LOAD( "lh536pnm.u32", 0x1000000, 0x400000, CRC(bc39e449) SHA1(5aea90b66ee03c70797ddc42dbcb064d83ce8cc7) )
+
+	ROM_REGION( 0x0400000, REGION_SOUND1, 0 )
+	ROM_LOAD( "lh5388r1.u53", 0x0000000, 0x100000, CRC(765d892f) SHA1(9b078c879d0437d1669bf4301fd52a768aa4d293) )
+
+	ROM_REGION( 0x0400000, REGION_SOUND2, 0 )
+	ROM_LOAD( "lh536pkl.u51", 0x0000000, 0x300000, CRC(e4919abf) SHA1(d6af4b9c6ff62f92216c9927027d3b2376416bae) )
+ROM_END
+

 /******************************************************************************

@@ -473,4 +704,5 @@ ROM_END

 ******************************************************************************/

-GAMEX( 1998, inufuku, 0, inufuku, inufuku, inufuku, ROT0, "Video System Co.", "Quiz and Variety Sukusuku Inufuku (Japan)", GAME_NO_COCKTAIL )
+GAMEX( 1998, inufuku,  0, inufuku, inufuku, inufuku, ROT0, "Video System Co.", "Quiz and Variety Sukusuku Inufuku (Japan)", GAME_NO_COCKTAIL )
+GAMEX( 1996, 3on3dunk, 0, dunk,    dunk,    dunk,    ROT0, "Video System Co.", "3 On 3 Dunk Madness (US, prototype? 1997/02/04)", GAME_NO_COCKTAIL | GAME_IMPERFECT_GRAPHICS )
@@ -3602,12 +3602,21 @@ static DRIVER_INIT ( sonic )
 	install_mem_read16_handler (0, 0xc00040, 0xc00055, sonic_track_r);

  install_mem_write16_handler(0, 0x20E5C4, 0x20E5C5, sonic_level_load_protection);
+
+  opaque_blend = false;
 }

 static DRIVER_INIT ( sonicp )
 {
 	install_mem_write16_handler(0, 0xc00040, 0xc00055, sonic_track_reset_w);
 	install_mem_read16_handler (0, 0xc00040, 0xc00055, sonic_track_r);
+
+	opaque_blend = false;
+}
+
+static DRIVER_INIT ( harddunk )
+{
+	opaque_blend = false;
 }

 static DRIVER_INIT ( radm )
@@ -3620,8 +3629,6 @@ static DRIVER_INIT ( radr )
 {
 	system32_use_default_eeprom = EEPROM_RADR;
 	install_io_analog();
-
-	opaquey_hack = true;
 }

 static WRITE16_HANDLER( f1en_comms_echo_w )
@@ -3691,8 +3698,6 @@ static DRIVER_INIT( darkedge )
 	install_mem_read16_handler (0, 0xa00000, 0xa7ffff, darkedge_protection_r);
 	install_mem_write16_handler(0, 0xa00000, 0xa7ffff, darkedge_protection_w);
 	system32_prot_vblank = darkedge_fd1149_vblank;
-
-	opaquey_hack = true;
 }

 static DRIVER_INIT( jleague )
@@ -3710,7 +3715,6 @@ static DRIVER_INIT( titlef )
 {
 	install_port_write_handler(1,  0xb0, 0xbf, scross_bank_w);
 	titlef_kludge = true;
-	opaquey_hack = true;
 }

 static DRIVER_INIT( scross )
@@ -3748,8 +3752,8 @@ GAMEX(1995, slipstrh, slipstrm, system32,     slipstrm, slipstrm, ROT0, "Capcom"

 /* Multi32 games */
 GAMEX(1992, orunners, 0,        multi32,      orunners, 0,        ROT0, "Sega", "Outrunners (US)", GAME_IMPERFECT_GRAPHICS )
-GAMEX(1994, harddunk, 0,        multi32,      harddunk, 0,        ROT0, "Sega", "Hard Dunk (World)", GAME_IMPERFECT_GRAPHICS )
-GAMEX(1994, harddunj, harddunk, multi32,      harddunk, 0,        ROT0, "Sega", "Hard Dunk (Japan)", GAME_IMPERFECT_GRAPHICS )
+GAMEX(1994, harddunk, 0,        multi32,      harddunk, harddunk, ROT0, "Sega", "Hard Dunk (World)", GAME_IMPERFECT_GRAPHICS )
+GAMEX(1994, harddunj, harddunk, multi32,      harddunk, harddunk, ROT0, "Sega", "Hard Dunk (Japan)", GAME_IMPERFECT_GRAPHICS )
 GAMEX(1992, scross,   0,        multi32,      scross,   scross,   ROT0, "Sega", "Stadium Cross (World)", GAME_IMPERFECT_GRAPHICS )
 GAMEX(1992, scrossa,  scross,   multi32,      scross,   scross,   ROT0, "Sega", "Stadium Cross (World, linkable)", GAME_IMPERFECT_GRAPHICS )
 GAMEX(1992, scrossu,  scross,   multi32,      scross,   scross,   ROT0, "Sega", "Stadium Cross (US)", GAME_IMPERFECT_GRAPHICS )
@@ -19,7 +19,7 @@ extern UINT16 *system32_paletteram[2];
 extern UINT16 system32_displayenable[2];
 extern UINT16 system32_tilebank_external;

-extern bool opaquey_hack;
+extern bool opaque_blend;
 extern bool titlef_kludge;

 extern void system32_set_vblank(int state);
@@ -16,6 +16,8 @@


 extern data16_t *inufuku_spriteram1;
+extern int inufuku_is_dunk;
+static UINT16 *dunk_sprite_buffer;
 extern data16_t *inufuku_spriteram2;
 extern size_t inufuku_spriteram1_size;

@@ -69,9 +71,64 @@ WRITE16_HANDLER( inufuku_scrollreg_w )

 ******************************************************************************/

+static void dunk_draw_sprites(struct mame_bitmap *bitmap, const struct rectangle *cliprect)
+{
+	int end, offs;
+	UINT16 *ram = dunk_sprite_buffer;
+	for (end = 0; end < 0x200; ++end)
+		if (ram[end] & 0x4000) break;
+
+	/* Priority drawing walks the sorting list backwards and stops at its terminator. */
+	for (offs = end - 1; offs >= 0; --offs)
+	{
+		UINT16 *attr;
+		int ox, oy, width, height, zx, zy, fx, fy, color, mask;
+		int x, y, map;
+		static const int masks[4] = { 0x00, 0xf0, 0xfc, 0xfe };
+		if (ram[offs] & 0x8000) continue;
+		attr = &ram[(ram[offs] & 0x3ff) * 4];
+		ox = attr[1] & 0x1ff;
+		oy = (attr[0] & 0x1ff) + 1;
+		width = (attr[1] >> 9) & 7;
+		height = (attr[0] >> 9) & 7;
+		zx = 32 - (attr[1] >> 12);
+		zy = 32 - (attr[0] >> 12);
+		fx = attr[2] & 0x4000;
+		fy = attr[2] & 0x8000;
+		color = (attr[2] >> 8) & 0x3f;
+		mask = masks[color >> 4];
+		map = attr[3] | ((attr[2] & 1) << 16);
+		for (y = 0; y <= height; ++y)
+			for (x = 0; x <= width; ++x)
+			{
+				int index = (map++ * 2) & 0xffff;
+				int code = ((inufuku_spriteram2[index] & 7) << 16) | inufuku_spriteram2[index + 1];
+				int sx = (ox + (fx ? width - x : x) * zx / 2) & 0x1ff;
+				int sy = (oy + (fy ? height - y : y) * zy / 2) & 0x1ff;
+				int wrapx, wrapy;
+				for (wrapy = 0; wrapy <= 1; ++wrapy)
+					for (wrapx = 0; wrapx <= 1; ++wrapx)
+						pdrawgfxzoom(bitmap, Machine->gfx[2], code, color, fx, fy,
+							sx - wrapx * 512, sy - wrapy * 512, cliprect,
+							TRANSPARENCY_PEN, 15, zx << 11, zy << 11, mask);
+			}
+	}
+}
+
+void dunk_buffer_sprites(void)
+{
+	/* The display consumes the completed attribute list from the preceding frame. */
+	memcpy(dunk_sprite_buffer, inufuku_spriteram1, 0x2000);
+}
+
 static void inufuku_draw_sprites(struct mame_bitmap *bitmap, const struct rectangle *cliprect)
 {
 	int offs;
+	if (inufuku_is_dunk)
+	{
+		dunk_draw_sprites(bitmap, cliprect);
+		return;
+	}

 	for (offs = (inufuku_spriteram1_size / 16) - 1; offs >= 0; offs--) {

@@ -227,6 +284,8 @@ WRITE16_HANDLER( inufuku_text_videoram_w )

 VIDEO_START( inufuku )
 {
+	dunk_sprite_buffer = auto_malloc(0x2000);
+	memset(dunk_sprite_buffer, 0, 0x2000);
 	inufuku_bg_tilemap = tilemap_create(get_inufuku_bg_tile_info, tilemap_scan_rows, TILEMAP_TRANSPARENT, 8, 8, 64, 64);
 	inufuku_text_tilemap = tilemap_create(get_inufuku_text_tile_info, tilemap_scan_rows, TILEMAP_TRANSPARENT, 8, 8, 64, 64);

@@ -254,7 +313,7 @@ VIDEO_UPDATE( inufuku )

 	if (inufuku_bg_raster) {
 		tilemap_set_scroll_rows(inufuku_bg_tilemap, 512);
-		for (i = 0; i < 256; i++) tilemap_set_scrollx(inufuku_bg_tilemap, (inufuku_bg_scrolly + i) & 0x1ff, inufuku_bg_rasterram[i]);
+		for (i = 0; i < 256; i++) tilemap_set_scrollx(inufuku_bg_tilemap, (inufuku_bg_scrolly + i) & 0x1ff, inufuku_bg_rasterram[i] + (inufuku_is_dunk ? inufuku_bg_scrollx : 0));
 	}
 	else {
 		tilemap_set_scroll_rows(inufuku_bg_tilemap, 1);
@@ -258,7 +258,7 @@ UINT16 *system32_paletteram[2];
 UINT16 system32_displayenable[2];
 UINT16 system32_tilebank_external;

-bool opaquey_hack  = false; /* dink */
+bool opaque_blend  = true;
 bool titlef_kludge = false;


@@ -1156,7 +1156,7 @@ static void update_tilemap_zoom(struct layer_info *layer, const struct rectangle
 	get_tilemaps(bgnum, tilemaps);

 	/* configure the layer */
-	opaque = (opaquey_hack) ? BIT(system32_videoram[0x1ff8e/2], (8 + bgnum)) : 0;
+	opaque = (opaque_blend) ? BIT(system32_videoram[0x1ff8e/2], (8 + bgnum)) : 0;

 	/* determine flipping */
 	compute_tilemap_flips(bgnum, &flipx, &flipy);
@@ -1320,7 +1320,7 @@ static void update_tilemap_rowscroll(struct layer_info *layer, const struct rect
 	get_tilemaps(bgnum, tilemaps);

 	/* configure the layer */
-	opaque = (opaquey_hack) ? BIT(system32_videoram[0x1ff8e/2], (8 + bgnum)) : 0;
+	opaque = (opaque_blend) ? BIT(system32_videoram[0x1ff8e/2], (8 + bgnum)) : 0;

 	/* determine flipping */
 	compute_tilemap_flips(bgnum, &flipx, &flipy);
Author	SHA1	Message	Date
mahoneyt944	dff0ba6365	segas32 use opaque blending by default - dbzvrvs backgrounds working. (#2211 ) * Update segas32.c * Update segas32.c * Update .gitlab-ci.yml * Update segas32.c * Update segas32.h * Update segas32.c * Update segas32.c * Update .gitlab-ci.yml	2026-11-07 07:35:08 -05:00
arcadez2003	1035485897	Merge pull request #2210 from libretro/arcadez2003-patch-11 3on3dunk	2026-11-06 21:07:03 +00:00
arcadez2003	a0e0e75905	Merge pull request #2209 from libretro/arcadez2003-patch-10 3on3 Dunk Madness video code	2026-11-06 21:06:47 +00:00
arcadez2003	a45b70e19e	Merge pull request #2208 from libretro/arcadez2003-patch-9 Attempt to support 3on3 Dunk Madness	2026-11-06 21:06:32 +00:00
arcadez2003	0dd483f4c0	3on3 Dunk Madness video code	2026-11-06 20:59:50 +00:00
arcadez2003	7f35678403	Attempt to support 3on3 Dunk Madness Ported from AdvanceMAME	2026-11-06 20:58:34 +00:00