www.pudn.com > s3c2410VGATEST.rar > glib.c
#include "def.h"
#include "lcdlib.h"
#include "glib.h"
#include "lcd.h"
void (*PutPixel)(U32,U32,U32);
void Glib_Init(int type)
{
switch(type)
{
case MODE_STN_1BIT:
PutPixel=_PutStn1Bit;
break;
case MODE_STN_2BIT:
PutPixel=_PutStn2Bit;
break;
case MODE_STN_4BIT:
PutPixel=_PutStn4Bit;
break;
case MODE_CSTN_8BIT:
PutPixel=_PutCstn8Bit;
break;
case MODE_CSTN_12BIT:
PutPixel=_PutCstn12Bit;
break;
case MODE_TFT_8BIT_240320:
PutPixel=_PutTft8Bit_240320;
break;
case MODE_TFT_16BIT_240320:
PutPixel=_PutTft16Bit_240320;
break;
case MODE_TFT_1BIT_640480:
PutPixel=_PutTft1Bit_640480;
break;
case MODE_TFT_8BIT_640480:
PutPixel=_PutTft8Bit_640480;
break;
case MODE_TFT_16BIT_640480:
PutPixel=_PutTft16Bit_640480;
break;
case MODE_TFT_24BIT_640480:
PutPixel=_PutTft24Bit_640480;
break;
//--------------------------------------
case MODE_TFT_1BIT_800600:
PutPixel=_PutTft1Bit_800600;
break;
case MODE_TFT_8BIT_800600:
PutPixel=_PutTft8Bit_800600;
break;
case MODE_TFT_16BIT_800600:
PutPixel=_PutTft16Bit_800600;
break;
//--------------------------------------
default:
break;
}
}
void _PutStn1Bit(U32 x,U32 y,U32 c)
{
if(x>((x)%32)*1) ) | ( (c&0x00000001)<< ((32-1-((x)%32))*1) );
}
void _PutStn2Bit(U32 x,U32 y,U32 c)
{
if(x>((x)%16)*2) ) | ( (c&0x00000003)<<((16-1-((x)%16))*2) );
}
void _PutStn4Bit(U32 x,U32 y,U32 c)
{
if(x>((x)%8)*4) ) | ( (c&0x0000000f)<<((8-1-((x)%8))*4) );
}
void _PutCstn8Bit(U32 x,U32 y,U32 c)
{
if(x>((x)%4)*8) ) | ( (c&0x000000ff)<<((4-1-((x)%4))*8) );
}
void _PutCstn12Bit(U32 x,U32 y,U32 c)
{
U32 z;
z=((x)%8);
if(x>(((z/3)*4)+((z)%3)*12) )
| ( (c&0xfff)<<(20-(((z/3)*4)+((z)%3)*12))) );
else
{
if(z==2)
{
frameBuffer12Bit[(y)][(x)*3/8]=( (frameBuffer12Bit[(y)][(x)*3/8]
& ~(0xff)) | ((c&0xff0)>>4) );
frameBuffer12Bit[(y)][((x)*3/8)+1]=( (frameBuffer12Bit[(y)][((x)*3/8)+1]
& ~(0xf0000000)) | ((c&0xf)<<28) );
}
else if(z==5)
{
frameBuffer12Bit[(y)][(x)*3/8]=( (frameBuffer12Bit[(y)][(x)*3/8]
& ~(0xf)) | ((c&0xf00)>>8) );
frameBuffer12Bit[(y)][((x)*3/8)+1]=( (frameBuffer12Bit[(y)][((x)*3/8)+1]
& ~(0xff000000)) | ((c&0xff)<<24) );
}
}
}
}
void _PutTft8Bit_240320(U32 x,U32 y,U32 c)
{
if(x>((x)%4)*8) ) | ( (c&0x000000ff)<<((4-1-((x)%4))*8) );
}
void _PutTft16Bit_240320(U32 x,U32 y,U32 c)
{
/*
if(x>((x)%2)*16) ) | ( (c&0x0000ffff)<<((2-1-((x)%2))*16) );
*/
if(x>((x)%2)*16) ) | ( (c&0x0000ffff)<<(((x)%2)*16) );
}
//add by lzf
void _DebugPutTft16Bit_240320(U32 x,U32 y,U32 c)
{
frameBuffer16BitTft240320[(y)][(x)/2]= c;
}
void _PutTft1Bit_640480(U32 x,U32 y,U32 c)
{
if(x>((x)%32)*1) ) | ( (c&0x00000001)<< ((32-1-((x)%32))*1) );
}
void _PutTft8Bit_640480(U32 x,U32 y,U32 c)
{
if(x>((x)%4)*8) ) | ( (c&0x000000ff)<<((4-1-((x)%4))*8) );
}
void _PutTft16Bit_640480(U32 x,U32 y,U32 c)
{
if(x>((x)%2)*16) ) | ( (c&0x0000ffff)<<((2-1-((x)%2))*16) );
}
void _PutTft24Bit_640480(U32 x,U32 y,U32 c)
{
if(x>((x)%32)*1) ) | ( (c&0x00000001)<< ((32-1-((x)%32))*1) );
}
void _PutTft8Bit_800600(U32 x,U32 y,U32 c)
{
if(x>((x)%4)*8) ) | ( (c&0x000000ff)<<((4-1-((x)%4))*8) );
}
void _PutTft16Bit_800600(U32 x,U32 y,U32 c)
{
if(x>((x)%2)*16) ) | ( (c&0x0000ffff)<<((2-1-((x)%2))*16) );
}
void Glib_Rectangle(int x1,int y1,int x2,int y2,int color)
{
Glib_Line(x1,y1,x2,y1,color);
Glib_Line(x2,y1,x2,y2,color);
Glib_Line(x1,y2,x2,y2,color);
Glib_Line(x1,y1,x1,y2,color);
}
void Glib_FilledRectangle(int x1,int y1,int x2,int y2,int color)
{
int i;
for(i=y1;i<=y2;i++)
Glib_Line(x1,i,x2,i,color);
}
// LCD display is flipped vertically
// But, think the algorithm by mathematics point.
// 3I2
// 4 I 1
// --+-- <-8 octants mathematical cordinate
// 5 I 8
// 6I7
void Glib_Line(int x1,int y1,int x2,int y2,int color)
{
int dx,dy,e;
dx=x2-x1;
dy=y2-y1;
if(dx>=0)
{
if(dy >= 0) // dy>=0
{
if(dx>=dy) // 1/8 octant
{
e=dy-dx/2;
while(x1<=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1+=1;e-=dx;}
x1+=1;
e+=dy;
}
}
else // 2/8 octant
{
e=dx-dy/2;
while(y1<=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1+=1;e-=dy;}
y1+=1;
e+=dx;
}
}
}
else // dy<0
{
dy=-dy; // dy=abs(dy)
if(dx>=dy) // 8/8 octant
{
e=dy-dx/2;
while(x1<=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1-=1;e-=dx;}
x1+=1;
e+=dy;
}
}
else // 7/8 octant
{
e=dx-dy/2;
while(y1>=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1+=1;e-=dy;}
y1-=1;
e+=dx;
}
}
}
}
else //dx<0
{
dx=-dx; //dx=abs(dx)
if(dy >= 0) // dy>=0
{
if(dx>=dy) // 4/8 octant
{
e=dy-dx/2;
while(x1>=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1+=1;e-=dx;}
x1-=1;
e+=dy;
}
}
else // 3/8 octant
{
e=dx-dy/2;
while(y1<=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1-=1;e-=dy;}
y1+=1;
e+=dx;
}
}
}
else // dy<0
{
dy=-dy; // dy=abs(dy)
if(dx>=dy) // 5/8 octant
{
e=dy-dx/2;
while(x1>=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1-=1;e-=dx;}
x1-=1;
e+=dy;
}
}
else // 6/8 octant
{
e=dx-dy/2;
while(y1>=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1-=1;e-=dy;}
y1-=1;
e+=dx;
}
}
}
}
}
void Glib_ClearScr(U32 c, int type)
{
//Very inefficient function.
int i,j;
//if((type==MODE_TFT_1BIT_800600)|(type==MODE_TFT_8BIT_800600)|(type==MODE_TFT_16BIT_800600))
if((type&0x4000)&&(type&0x400))
for(j=0;j