video.h

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/*---------------------------------------------------------------------------------

    Generic video functions

    Copyright (C) 2018-2019
        Alekmaul

    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any
    damages arising from the use of this software.

    Permission is granted to anyone to use this software for any
    purpose, including commercial applications, and to alter it and
    redistribute it freely, subject to the following restrictions:

    1.  The origin of this software must not be misrepresented; you
        must not claim that you wrote the original software. If you use
        this software in a product, an acknowledgment in the product
        documentation would be appreciated but is not required.
    2.  Altered source versions must be plainly marked as such, and
        must not be misrepresented as being the original software.
    3.  This notice may not be removed or altered from any source
        distribution.

---------------------------------------------------------------------------------*/
#ifndef COL_VIDEO_INCLUDE
#define COL_VIDEO_INCLUDE

#include <coleco/coltypes.h>

#define FNTNORMAL          0
#define FNTITALIC          1
#define FNTBOLD            2
#define FNTBOLD_ITALIC     (FNTITALIC | FNTBOLD)

#define chrgen              0x0000
#define coltab              0x2000
#define chrtab              0x1800
#define chrtab2             0x1B00
#define sprtab              0x3800
#define sprgen              0x1f00

#define COLTRANSP           0
#define COLBLACK            1
#define COLMEDGREEN         2
#define COLLITGREEN         3
#define COLDRKBLUE          4
#define COLLITBLUE          5
#define COLDRKRED           6
#define COLCYAN             7
#define COLMEDRED           8
#define COLLITRED           9
#define COLDRKYELLOW        10
#define COLLITYELLOW        11
#define COLDRKGREEN         12
#define COLMAGENTA          13
#define COLGREY             14
#define COLWHITE            15

void vdp_setreg(u8 reg,u8 val);

void vdp_waitvblank(u16 numtime);

void vdp_enablenmi(void);

void vdp_disablenmi(void);

void vdp_enablevdp(void);

void vdp_disablevdp(void);

void vdp_enablescr(void);

void vdp_disablescr(void);

void vdp_setmode1txt(void);

void vdp_setmode2txt(void);

void vdp_setmode2bmp(void);

void vdp_setcharex(u8 first,u8 count, unsigned offset,u8 flags);

void vdp_putchar (u8 x, u8 y, char value);

u8  vdp_getchar (u8 x, u8 y);

void vdp_getarea (void *table, u8 x, u8 y, u8 width, u8 height);

void vdp_putarea (void *table, u8 x, u8 y, u8 width, u8 height);

void vdp_setdefaultchar(u8 flags);

void vdp_putstring(u8 x, u8 y, char* text);

void vdp_fillvram(u16 offset,u8 value,u16 count);

void vdp_putvram_repeat(unsigned offset,void *table, u8 count, u8 times);

void vdp_duplicatevram(void);

void vdp_putvram (unsigned offset,void *data,unsigned count);

void vdp_getvram (unsigned offset,void *data,unsigned count);

void *vdp_rle2vram (void *rledata,unsigned offset);

void vdp_ple2vram(void *pledata, unsigned offset);

void vdp_dan2vram(void *dandata, unsigned offset);


#define vdp_blocknmi()  { __asm__("\tpush hl\n\tld hl,#_no_nmi\n\tset 0,(hl)\n\tpop hl"); }

#define vdp_releasenmi() { __asm__("\tpush hl\n\tld hl,#_no_nmi\n\tbit 7,(hl)\n\tjp z,.+6\n\tcall _nmi_direct\n\tres 0,(hl)\n\tpop hl"); }

#endif