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发信人: xian (我想用心来点亮希望), 信区: Linux
标  题: Linux程式设计入门 - SVGALIB 
发信站: 紫 丁 香 (Sun May  2 16:30:25 1999), 转信


网络工作室--知识库:编程技术:Unix编程:Linux程式设计入门:
Linux程式设计入门-SVGALIB
Linux程式设计入门-SVGALIB



SvgaLib是LinuxConsole下的VGA驱动函数库。虽然它的品质还是有点低，支援

的萤幕卡种类不算太多，但是有许多的游戏及程式都是用它来做开发，可以算

是非官方的标准了。如果您准备要在Console下撰写图形功能的程式，目前来说

SVGALIB是您唯一的选择。目前使用SVGALIB的程式有许多，中文终端机使用

SVGALIB的就有a4c.tty/yact/bcs16。


这里我只讲一些简单的使用方法，如启动vga及mouse的使用。要有效地、高阶

的运用，技巧复杂很多，例如a4c.tty就另外往上架一层StarWindow

Manager，来管理一个小型视窗系统。



vga




vgamouse






intvga_setmode(intmode);

intvga_hasmode(intmode);

intvga_setpalette(intindex,intred,intgreen,intblue);

intvga_getpalette(intindex,int*red,int*green,int*blue);

intvga_setcolor(intcolor);

intvga_drawpixel(intx,inty);

intvga_drawline(intx1,inty1,intx2,inty2);

intvga_getpixel(intx,inty);

vga_modeinfo*vga_getmodeinfo(intmode);


unsignedchar*graph_mem;

unsignedchar*vga_getgraphmem(void);


voidvga_setpage(intp);

voidvga_setreadpage(intp);

voidvga_setreadpage(intp);

voidvga_setwritepage(intp);

voidvga_setdisplaystart(inta);

voidvga_waitretrace(void);

intvga_init(void);

intvga_setrgbcolor(intr,intg,intb);








#defineTEXT0/*CompatiblewithVGAlibv1.2*/

#defineG320x200x161

#defineG640x200x162

#defineG640x350x163

#defineG640x480x164

#defineG320x200x2565

#defineG320x240x2566

#defineG320x400x2567

#defineG360x480x2568

#defineG640x480x29


#defineG640x480x25610

#defineG800x600x25611

#defineG1024x768x25612


#defineG1280x1024x25613/*Additionalmodes.*/


#defineG320x200x32K14

#defineG320x200x64K15

#defineG320x200x16M16

#defineG640x480x32K17

#defineG640x480x64K18

#defineG640x480x16M19

#defineG800x600x32K20

#defineG800x600x64K21

#defineG800x600x16M22

#defineG1024x768x32K23

#defineG1024x768x64K24

#defineG1024x768x16M25

#defineG1280x1024x32K26

#defineG1280x1024x64K27

#defineG1280x1024x16M28


#defineG800x600x1629

#defineG1024x768x1630

#defineG1280x1024x1631


#defineG720x348x232/*Herculesemulationmode*/


#defineG320x200x16M3233/*32-bitperpixelmodes.*/

#defineG640x480x16M3234

#defineG800x600x16M3235

#defineG1024x768x16M3236

#defineG1280x1024x16M3237


/*additionalresolutions*/

#defineG1152x864x1638

#defineG1152x864x25639

#defineG1152x864x32K40

#defineG1152x864x64K41

#defineG1152x864x16M42

#defineG1152x864x16M3243


#defineG1600x1200x1644

#defineG1600x1200x25645

#defineG1600x1200x32K46

#defineG1600x1200x64K47

#defineG1600x1200x16M48

#defineG1600x1200x16M3249


typedefstruct{

intwidth;

intheight;

intbytesperpixel;

intcolors;

intlinewidth;/*scanlinewidthinbytes*/

intmaxlogicalwidth;/*maximumlogicalscanlinewidth*/

intstartaddressrange;/*changeablebitsset*/

intmaxpixels;/*videomemory/bytesperpixel*/

inthaveblit;/*maskofblitfunctionsavailable*/

intflags;/*otherflags*/



/*Extendedfields:*/



intchiptype;/*Chiptypedetected*/

intmemory;/*videomemoryinKB*/

intlinewidth_unit;/*Useonlyamultipleofthisas

parameterforset_displaystart*/

char*linear_aperture;/*pointstommapsecondarymemaperture

ofcar

intaperture_size;/*sizeofapertureinKBif

size>=videomemory.

void(*set_aperture_page)(intpage);

/*ifaperture_size<videomemoryselectamemorypage*/

void*extensions;/*pointstocopyofeepromformach32*/

/*dependsfromactualdriver/chiptype..etc.*/

}vga_modeinfo;




OKSTATION,Webmaster,BrianLin

admin@studio.openunix.org


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