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// license:BSD-3-Clause
// copyright-holders:Brad Oliver,Aaron Giles,Bernd Wiebelt,Allard van der Bas
#ifndef __VECTOR__
#define __VECTOR__
#define VECTOR_COLOR111(c) \
rgb_t(pal1bit((c) >> 2), pal1bit((c) >> 1), pal1bit((c) >> 0))
#define VECTOR_COLOR222(c) \
rgb_t(pal2bit((c) >> 4), pal2bit((c) >> 2), pal2bit((c) >> 0))
#define VECTOR_COLOR444(c) \
rgb_t(pal4bit((c) >> 8), pal4bit((c) >> 4), pal4bit((c) >> 0))
/* The vertices are buffered here */
struct point
{
point() :
x(0),
y(0),
col(0),
intensity(0),
arg1(0),
arg2(0),
status(0) {}
int x; int y;
rgb_t col;
int intensity;
int arg1; int arg2; /* start/end in pixel array or clipping info */
int status; /* for dirty and clipping handling */
};
class vector_device : public device_t, public device_video_interface
{
public:
// construction/destruction
vector_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
vector_device(const machine_config &mconfig, device_type type, const char *name, std::string tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void clear_list();
void add_point(int x, int y, rgb_t color, int intensity);
void add_clip(int minx, int miny, int maxx, int maxy);
void set_flicker(float newval);
float get_flicker();
void set_beam_width_min(float newval);
float get_beam_width_min();
void set_beam_width_max(float newval);
float get_beam_width_max();
void set_beam_intensity_weight(float newval);
float get_beam_intensity_weight();
// device-level overrides
virtual void device_start() override;
private:
static float m_flicker;
static float m_beam_width_min;
static float m_beam_width_max;
static float m_beam_intensity_weight;
std::unique_ptr<point[]> m_vector_list;
static int m_vector_index;
int m_min_intensity;
int m_max_intensity;
float normalized_sigmoid(float n, float k);
};
// device type definition
extern const device_type VECTOR;
#define MCFG_VECTOR_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, VECTOR, 0)
#endif
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