feat: ajout de fonctionnalité dans la gestion de pages, split, clignotement, défilement
This commit is contained in:
parent
bbffb508fb
commit
15e43ea521
237
lib/vga.c
237
lib/vga.c
|
|
@ -20,14 +20,130 @@
|
|||
|
||||
#define planesize 0x10000
|
||||
|
||||
u16 resX,resY; /* resolution x,y en caractères*/
|
||||
static u16 resX,resY,color,splitY; /* resolution x,y en caractères et profondeur */
|
||||
|
||||
static u8 pages,activepage; /* nombre de pages disponibles N° de la page active*/
|
||||
static u8 pages,activepage,showedpage; /* nombre de pages disponibles N° de la page active*/
|
||||
static u32 linesize,pagesize;/* Taille d'une ligne et d'une page */
|
||||
static u8 vmode=0xFF,color; /* mode en cours d'utilisation et profondeur */
|
||||
static u8 vmode=0xFF; /* mode en cours d'utilisation */
|
||||
static u32 basemem; /* Adresse de la mémoire vidéo */
|
||||
static bool scrolling=0x1,graphic;/* Activation du défilement, Flag du mode graphique */
|
||||
static u8 font; /* n° font active */
|
||||
static bool scrolling,graphic,blink;/* Activation du défilement, Flag du mode graphique */
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Donne la resolution max horizontale */
|
||||
|
||||
u16 getxres()
|
||||
{
|
||||
return resX;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Donne la profondeur en bit */
|
||||
|
||||
u8 getdepth()
|
||||
{
|
||||
return color;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Donne la resolution max verticale */
|
||||
|
||||
u16 getyres()
|
||||
{
|
||||
return resY-splitY;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Donne le nombre max de page ecran dispo */
|
||||
|
||||
u16 getnbpages()
|
||||
{
|
||||
return pages;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Fixe la page ecran de travail */
|
||||
|
||||
void setpage(u8 page)
|
||||
{
|
||||
if (page<pages) activepage=page;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Recupere la page ecran de travail */
|
||||
|
||||
u8 getpage()
|
||||
{
|
||||
return activepage;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Affiche la page ecran specifié */
|
||||
|
||||
void showpage(u8 page)
|
||||
{
|
||||
if (page<pages)
|
||||
{
|
||||
u16 addr;
|
||||
addr=page*pagesize/2;
|
||||
outb(ccrt, 0x0C);
|
||||
outb(ccrt+1,(addr>>8));
|
||||
outb(ccrt, 0x0D);
|
||||
outb(ccrt+1,(addr&0xFF));
|
||||
showedpage=page;
|
||||
}
|
||||
}
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Sépare l'écran en 2 a partir de la ligne Y */
|
||||
|
||||
void split(u16 y)
|
||||
{
|
||||
u16 addr;
|
||||
if (graphic==0)
|
||||
addr=(y<<3);
|
||||
else
|
||||
addr=y;
|
||||
/* line compare pour ligne atteinte */
|
||||
outb(ccrt, 0x18);
|
||||
outb(ccrt+1,(addr&0xFF));
|
||||
/* overflow pour le bit 8 */
|
||||
|
||||
outb(ccrt, 0x07);
|
||||
outb(ccrt+1,(inb(ccrt+1) & ~16)|((addr>>4)&16));
|
||||
|
||||
/* Maximum Scan Line pour le bit 9 */
|
||||
|
||||
outb(ccrt, 0x09);
|
||||
outb(ccrt+1,(inb(ccrt+1) & ~64)|((addr>>3)&64));
|
||||
splitY=y;
|
||||
}
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Sépare l'écran en 2 a partir de la ligne Y */
|
||||
|
||||
void unsplit()
|
||||
{
|
||||
/* line compare pour ligne atteinte */
|
||||
outb(ccrt, 0x18);
|
||||
outb(ccrt+1,0);
|
||||
/* overflow pour le bit 8 */
|
||||
|
||||
outb(ccrt, 0x07);
|
||||
outb(ccrt+1,inb(ccrt+1) & ~16);
|
||||
|
||||
/* Maximum Scan Line pour le bit 9 */
|
||||
|
||||
outb(ccrt, 0x09);
|
||||
outb(ccrt+1,inb(ccrt+1) & ~64);
|
||||
splitY=0;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
|
|
@ -145,20 +261,17 @@ void (*fill)(u8 attrib);
|
|||
|
||||
void fill_text (u8 attrib)
|
||||
{
|
||||
gotoscr(0,0);
|
||||
memset((u8 *)(basemem+activepage*pagesize),' ',pagesize/2,2);
|
||||
memset((u8 *)(basemem+activepage*pagesize+1),attrib,pagesize/2,2);
|
||||
}
|
||||
|
||||
void fill_chain (u8 attrib)
|
||||
{
|
||||
gotoscr(0,0);
|
||||
memset((u8 *)(basemem+activepage*pagesize),attrib&0x0F,pagesize,1);
|
||||
}
|
||||
|
||||
void fill_unchain (u8 attrib)
|
||||
{
|
||||
gotoscr(0,0);
|
||||
int i;
|
||||
for(i=0;i<4;i++)
|
||||
{
|
||||
|
|
@ -174,8 +287,11 @@ void fill_unchain (u8 attrib)
|
|||
void gotoscr(u16 x,u16 y)
|
||||
{
|
||||
u16 pos;
|
||||
pos=(x+y*resX);
|
||||
outb(ccrt,0x0F);
|
||||
if (splitY==0)
|
||||
pos=(showedpage*pagesize/2+x+y*resX);
|
||||
else
|
||||
pos=(x+y*resX);
|
||||
outb(ccrt,0x0F);
|
||||
outb(ccrt+1,(u8)(pos&0x00FF));
|
||||
outb(ccrt,0x0E);
|
||||
outb(ccrt+1,(u8)((pos&0xFF00)>>8));
|
||||
|
|
@ -195,8 +311,8 @@ if (scrolling)
|
|||
for(i=0;i<4;i++)
|
||||
{
|
||||
useplane(i);
|
||||
memcpy((u8*)(basemem+linesize*8*lines),(u8*)basemem,pagesize-linesize*8*lines,1);
|
||||
memset((u8*)(basemem+pagesize-linesize*8*lines),attrib&0x0F,linesize*8*lines,1);
|
||||
memcpy((u8*)(basemem+activepage*pagesize+linesize*8*lines),(u8*)basemem,pagesize-linesize*8*lines,1);
|
||||
memset((u8*)(basemem+activepage*pagesize+pagesize-linesize*8*lines),attrib&0x0F,linesize*8*lines,1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -205,8 +321,8 @@ void scroll_chain(u8 lines,u8 attrib)
|
|||
{
|
||||
if (scrolling)
|
||||
{
|
||||
memcpy((u8*)basemem+linesize*8*lines,(u8*)basemem,pagesize-linesize*8*lines,1);
|
||||
memset((u8*)(basemem+pagesize-linesize*8*lines),attrib&0x0F,linesize*8*lines,1);
|
||||
memcpy((u8*)basemem+activepage*pagesize+linesize*8*lines,(u8*)basemem+activepage*pagesize,pagesize-linesize*8*lines,1);
|
||||
memset((u8*)(basemem+activepage*pagesize+pagesize-linesize*8*lines),attrib&0x0F,linesize*8*lines,1);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -214,9 +330,9 @@ void scroll_text(u8 lines,u8 attrib)
|
|||
{
|
||||
if (scrolling)
|
||||
{
|
||||
memcpy((u8*)basemem+linesize*lines,(u8*)basemem,pagesize-linesize*lines,1);
|
||||
memset((u8*)(basemem+pagesize-linesize*lines-2),' ',(linesize*lines)/2,2);
|
||||
memset((u8*)(basemem+pagesize-linesize*lines-1),attrib,(linesize*lines)/2,2);
|
||||
memcpy((u8*)basemem+activepage*pagesize+linesize*lines,(u8*)basemem+activepage*pagesize,pagesize-linesize*lines,1);
|
||||
memset((u8*)(basemem+activepage*pagesize+pagesize-linesize*lines-2),' ',(linesize*lines)/2,2);
|
||||
memset((u8*)(basemem+activepage*pagesize+pagesize-linesize*lines-1),attrib,(linesize*lines)/2,2);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -254,6 +370,33 @@ void showchar_text(u16 coordx,u16 coordy,u8 thechar,u8 attrib)
|
|||
*(++screen) =attrib;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Recupere le caractère a l'écran */
|
||||
|
||||
u8 (*getchar)(u16 coordx,u16 coordy);
|
||||
|
||||
u8 getchar_text(u16 coordx,u16 coordy)
|
||||
|
||||
{
|
||||
u8 *screen;
|
||||
screen = (u8 *)basemem+activepage*pagesize+2*(coordx+coordy*resX);
|
||||
return *screen;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Recupere les attributs a l'écran */
|
||||
|
||||
u8 (*getattrib)(u16 coordx,u16 coordy);
|
||||
|
||||
u8 getattrib_text(u16 coordx,u16 coordy)
|
||||
|
||||
{
|
||||
u8 *screen;
|
||||
screen = (u8 *)basemem+activepage*pagesize+2*(coordx+coordy*resX)+1;
|
||||
return *screen;
|
||||
}
|
||||
|
||||
|
||||
/*******************************************************************************/
|
||||
|
|
@ -324,7 +467,7 @@ void writepxl_8bitsunchain(u16 x, u16 y, u32 c)
|
|||
|
||||
u32 setvmode(u8 mode)
|
||||
{
|
||||
u8 *def,i,gmode;
|
||||
u8 *def,gmode;
|
||||
/* Récupere la definition des registres VGA en fonction du mode
|
||||
graphique : >0x80
|
||||
text : 0x00 - 0x7F
|
||||
|
|
@ -378,6 +521,8 @@ variables en fonction de la profondeur et du mode*/
|
|||
scroll=scroll_text;
|
||||
fill=fill_text;
|
||||
pagesize=resY*linesize;
|
||||
getchar=getchar_text;
|
||||
getattrib=getattrib_text;
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -431,7 +576,10 @@ variables en fonction de la profondeur et du mode*/
|
|||
}
|
||||
/* calcul des variables d'état video */
|
||||
activepage=0;
|
||||
showedpage=0;
|
||||
splitY=0;
|
||||
vmode=mode;
|
||||
scrolling=1;
|
||||
pages=(planesize/pagesize);
|
||||
basemem=(def[20]<<8)+def[21]+getbase();
|
||||
return 0;
|
||||
|
|
@ -503,25 +651,70 @@ u32 loadfont(u8* def,u8 size,u8 font)
|
|||
|
||||
/* Récupere le N° de la police de caractère en cours d'utilisation */
|
||||
|
||||
u8 getfont(u8 num)
|
||||
u8 getfont()
|
||||
{
|
||||
return font;
|
||||
u8 num,tmp;
|
||||
outb(sequencer,3);
|
||||
tmp=inb(sequencer+1);
|
||||
num=(tmp&0x03)|((tmp&0x10)>>2);
|
||||
return num;
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Récupere le N° de la police de caractère en cours d'utilisation */
|
||||
|
||||
u8 getfont2()
|
||||
{
|
||||
u8 num,tmp;
|
||||
outb(sequencer,3);
|
||||
tmp=inb(sequencer+1);
|
||||
num=((tmp&0x0C)>>2)|((tmp&0x20)>>3);
|
||||
return num;
|
||||
}
|
||||
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Fixe le N° de la police de caractère a utiliser */
|
||||
|
||||
void setfont(u8 num)
|
||||
{
|
||||
font=num&0x07;
|
||||
num&=0x07;
|
||||
outb(sequencer,3);
|
||||
outb(sequencer+1,(num&0x03)+((num&0x04)<<2));
|
||||
outb(sequencer+1,(inb(sequencer+1)&0xEC)|((num&0x03)+((num&0x04)<<2)));
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Fixe le N° de la police de caractère a utiliser */
|
||||
|
||||
void setfont2(u8 num)
|
||||
{
|
||||
num&=0x07;
|
||||
outb(sequencer,3);
|
||||
outb(sequencer+1,(inb(sequencer+1)&0xD3)|(((num&0x03)<<2)+((num&0x04)<<3)));
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Fixe le N° de la police de caractère a utiliser */
|
||||
|
||||
void enableblink()
|
||||
{
|
||||
outb(ccrt,0x10);
|
||||
outb(ccrt+1,(inb(sequencer+1)|0x04));
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
/* Fixe le N° de la police de caractère a utiliser */
|
||||
|
||||
void disableblink()
|
||||
{
|
||||
outb(ccrt,0x10);
|
||||
outb(ccrt+1,(inb(sequencer+1)&~0x04));
|
||||
}
|
||||
|
||||
/*******************************************************************************/
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue