Previous

199869 Revisions

Next

r17409 Wednesday 22nd August, 2012 at 20:10:44 UTC by Wilbert Pol
(MESS) pcfx.c: Start displaying some things from huc6270-b; doesn't look correct yet though. (nw)

[src/emu/video]

huc6261.c huc6261.h

trunk/src/emu/video/huc6261.c

r17408	r17409
41	41	huc6261_device::huc6261_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
42	42	: device_t(mconfig, HUC6261, "HuC6261", tag, owner, clock)
43	43	{
	44	// Set up UV lookup table
	45	for ( int ur = 0; ur < 256; ur++ )
	46	{
	47	for ( int vr = 0; vr < 256; vr++ )
	48	{
	49	INT32 r,g,b;
	50	INT32 u = ur - 128;
	51	INT32 v = vr - 128;
	52
	53	r =              - 1.13983 * v;
	54	g = -0.35465 * u - 0.58060 * v;
	55	b =  2.03211 * u;
	56
	57	m_uv_lookup[ ( ur << 8 ) | vr ][0] = r;
	58	m_uv_lookup[ ( ur << 8 ) | vr ][1] = g;
	59	m_uv_lookup[ ( ur << 8 ) | vr ][2] = b;
	60	}
	61	}
44	62	}
45	63
46	64
	65	inline UINT32 huc6261_device::yuv2rgb(UINT32 yuv)
	66	{
	67	INT32 r, g, b;
	68	UINT8 y = yuv >> 16;
	69	UINT16 uv = yuv & 0xffff;
	70
	71	r = y + m_uv_lookup[uv][0];
	72	g = y + m_uv_lookup[uv][1];
	73	b = y + m_uv_lookup[uv][2];
	74
	75	if ( r < 0 ) r = 0;
	76	if ( g < 0 ) g = 0;
	77	if ( b < 0 ) b = 0;
	78	if ( r > 255 ) r = 255;
	79	if ( g > 255 ) g = 255;
	80	if ( b > 255 ) b = 255;
	81
	82	return ( r << 16 ) | ( g << 8 ) | b;
	83	}
	84
47	85	void huc6261_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
48	86	{
49	87	int vpos = m_screen->vpos();
r17408	r17409
58	96	{
59	97	g_profiler.start( PROFILER_VIDEO );
60	98	/* Get next pixel information */
61		m_pixel_data = 0; //m_get_next_pixel_data( 0, 0xffff );
	99	m_pixel_data = m_huc6270_b->next_pixel( *machine().memory().first_space(), 0, 0xffff );
62	100	g_profiler.stop();
63	101	}
64	102
65		bitmap_line[ h ] = m_palette[ m_pixel_data ];
	103	bitmap_line[ h ] = yuv2rgb( ( ( m_palette[m_pixel_data] & 0xff00 ) << 8 ) | ( ( m_palette[m_pixel_data] & 0xf0 ) << 8 ) | ( ( m_palette[m_pixel_data] & 0x0f ) << 4 ) );
66	104	m_pixel_clock = ( m_pixel_clock + 1 ) % m_pixels_per_clock;
67	105	h = ( h + 1 ) % HUC6261_WPF;
68	106

trunk/src/emu/video/huc6261.h

r17408	r17409
46	46	DECLARE_READ16_MEMBER( read );
47	47	DECLARE_WRITE16_MEMBER( write );
48	48
	49	inline UINT32 yuv2rgb(UINT32 yuv);
	50
49	51	protected:
50	52	// device-level overrides
51	53	virtual void device_config_complete();
r17408	r17409
74	76
75	77	emu_timer   *m_timer;
76	78	bitmap_rgb32   *m_bmp;
	79	INT32   m_uv_lookup[65536][3];
77	80	};
78	81
79	82

Previous

199869 Revisions

Next

---

© 1997-2024 The MAME Team