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#ifndef JAG_VIDEO_H_
#define JAG_VIDEO_H_
enum {
VID_HCOUNT,
VID_VCOUNT,
VID_HLPEN,
VID_VLPEN,
VID_REG_C,
VID_REG_E,
VID_OBJ0,
VID_OBJ1,
VID_OBJ2,
VID_OBJ3,
VID_REG_18,
VID_REG_1A,
VID_REG_1C,
VID_REG_1E,
VID_OBJLIST1,
VID_OBJLIST2,
VID_REG_24,
VID_OBJFLAG,
VID_VMODE,
VID_BORDER_RG,
VID_BORDER_B,
VID_HPERIOD,
VID_HBLANK_BEGIN,
VID_HBLANK_END,
VID_HSYNC,
VID_HVSYNC,
VID_HDISP_BEGIN1,
VID_HDISP_BEGIN2,
VID_HDISP_END,
VID_VPERIOD,
VID_VBLANK_BEGIN,
VID_VBLANK_END,
VID_VSYNC,
VID_VDISP_BEGIN,
VID_VDISP_END,
VID_VEQUAL_BEGIN,
VID_VEQUAL_END,
VID_VINT,
VID_PIT0,
VID_PIT1,
VID_HEQUAL_END,
VID_REG_56,
VID_BGCOLOR,
JAG_VIDEO_REGS
};
#define LINEBUFFER_WORDS 720
typedef struct {
uint64_t im_data;
uint64_t prefetch;
uint32_t cycles;
uint32_t obj_start;
uint32_t link;
uint32_t data_address;
uint32_t cur_address;
uint32_t increment;
uint32_t line_pitch;
uint32_t lb_offset;
int16_t xpos;
uint16_t ypos;
uint16_t height;
int16_t hscale;
int16_t vscale;
int16_t hremainder;
int16_t remainder;
uint8_t bpp;
uint8_t line_phrases;
uint8_t state;
uint8_t type;
uint8_t im_bits;
uint8_t pal_offset;
uint8_t has_prefetch;
uint8_t hflip;
uint8_t addpixels;
uint8_t transparent;
uint8_t leftclip;
} object_processor;
typedef struct {
void *system;
uint32_t *output;
uint32_t output_pitch;
uint16_t regs[JAG_VIDEO_REGS];
uint16_t clut[256];
uint16_t line_buffer_a[LINEBUFFER_WORDS];
uint16_t line_buffer_b[LINEBUFFER_WORDS];
uint16_t *write_line_buffer;
uint32_t cycles;
uint32_t op_cycles;
uint8_t pclock_div;
uint8_t pclock_counter;
uint8_t mode;
uint8_t cpu_int_pending;
object_processor op;
} jag_video;
jag_video *jag_video_init(void);
void jag_video_run(jag_video *context, uint32_t target_cycle);
void jag_video_reg_write(jag_video *context, uint32_t address, uint16_t value);
uint32_t jag_next_vid_interrupt(jag_video *context);
#endif //JAG_VIDEO_H_
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