📄 our_draw16.c
字号:
dest[xinc++] =((k_r_inc>>(SHIFR_L-16))&OUR_RGB_MASK0800)+\
((k_g_inc>>(SHIFR_L-8))&OUR_RGB_MASK0080)+((k_b_inc>>SHIFR_L)&OUR_RGB_MASK0008);
for(;xinc<=y1;)
{
FILE_GOURAUD;
}
rs+=krs;
gs+=kgs;
bs+=kbs;
dest+=mempitch; //point to next line
xs+=ks; //next line xs
xe+=ke; //next line xe
}
}
return;
}
#else
#endif
//---------------------------------------------------------------------
else if(y2<y3)//the butt part
{
xs=((1<<SHIFR_L))/(y1-y3); //y1=y2
ks=((x1-x3))*xs; //slope 1 --> 2
ke=((x2-x3))*xs; //slope 1 --> 3
if(ks>ke) //start slope must be smaller than the end one
{
xe=((1<<SHIFR_L))/(x2-x1);
krs=(((color1&OUR_RGB_MASK0800)-(color3&OUR_RGB_MASK0800))>>16)*xs;
kre=(((color2&OUR_RGB_MASK0800)-(color1&OUR_RGB_MASK0800))>>16)*xe;
kgs=(((color1&OUR_RGB_MASK0080)-(color3&OUR_RGB_MASK0080))>>8)*xs;
kge=(((color2&OUR_RGB_MASK0080)-(color1&OUR_RGB_MASK0080))>>8)*xe;
kbs=(((color1&OUR_RGB_MASK0008)-(color3&OUR_RGB_MASK0008)))*xs;
kbe=(((color2&OUR_RGB_MASK0008)-(color1&OUR_RGB_MASK0008)))*xe;
rs=(color1&OUR_RGB_MASK0800)<<(SHIFR_L-16);
gs=(color1&OUR_RGB_MASK0080)<<(SHIFR_L-8);
bs=(color1&OUR_RGB_MASK0008)<<SHIFR_L;
xs=x1<<SHIFR_L;
xe=x2<<SHIFR_L;
}
else if(ks<ke)
{
xe=((1<<SHIFR_L))/(x1-x2);
krs=(((color2&OUR_RGB_MASK0800)-(color3&OUR_RGB_MASK0800))>>16)*xs;
kre=(((color1&OUR_RGB_MASK0800)-(color2&OUR_RGB_MASK0800))>>16)*xe;
kgs=(((color2&OUR_RGB_MASK0080)-(color3&OUR_RGB_MASK0080))>>8)*xs;
kge=(((color1&OUR_RGB_MASK0080)-(color2&OUR_RGB_MASK0080))>>8)*xe;
kbs=(((color2&OUR_RGB_MASK0008)-(color3&OUR_RGB_MASK0008)))*xs;
kbe=(((color1&OUR_RGB_MASK0008)-(color2&OUR_RGB_MASK0008)))*xe;
OUR_SWAP(ks,ke,xs);
rs=(color2&OUR_RGB_MASK0800)<<(SHIFR_L-16);
gs=(color2&OUR_RGB_MASK0080)<<(SHIFR_L-8);
bs=(color2&OUR_RGB_MASK0008)<<SHIFR_L;
xe=x1<<SHIFR_L;
xs=x2<<SHIFR_L;
}
else
{
return;
}
for(yinc=y1;yinc<y3;yinc++) //scan lines
{
k_r_inc=rs;
k_g_inc=gs;
k_b_inc=bs;
//------------------------------------------------------
xinc=xs>>SHIFR_L;
y1=(xe>>SHIFR_L);
dest[xinc++] =((k_r_inc>>(SHIFR_L-16))&OUR_RGB_MASK0800)+\
((k_g_inc>>(SHIFR_L-8))&OUR_RGB_MASK0080)+((k_b_inc>>SHIFR_L)&OUR_RGB_MASK0008);
for(;xinc<=y1;)
{
FILE_GOURAUD;
}
rs+=krs;
gs+=kgs;
bs+=kbs;
dest+=mempitch; //point to next line
xs+=ks; //next line xs
xe+=ke;
}
return;
}
}
//------------------------------------------------------
//------------------------------------------------------
#define FILE_BMP {\
dest[xinc++] =bmp->bmp_data[(((k_r_inc>>(SHIFR_L))&OUR_RGB_MASK0008)*bmp->width+(k_b_inc>>SHIFR_L))];\
\
k_r_inc+=kre;\
k_g_inc+=kge;\
k_b_inc+=kbe;\
}
//------------------------------------------------------
void OUR_Draw_BMP_2D16( int x1,int y1,
int x2,int y2,
int x3,int y3,
CLR color1,
CLR color2,
CLR color3,
UCHAR *dest_buffer, int mempitch,
OUR_BMP_INFO* bmp
)
{
int xs,xe,ks,ke,xinc;
int yinc;
CLR rs,re,gs,ge,bs,be;
int krs,kre,kgs,kge,kbs,kbe;
int k_r_inc;
int k_g_inc;
int k_b_inc;
CLR *dest;
/*
x1=10<<1;
y1=10<<1;
x2=10<<1;
y2=265<<1;
x3=265<<1;
y3=265<<1;
color3 = 0x000080;
color1 = 0x008080;
color2 = 0x000000;
*/
//make sure y1<y2<y3
if(y1>y2)
{
OUR_SWAP(y1,y2,xs);
OUR_SWAP(x1,x2,xs);
OUR_SWAP(color1,color2,rs);
}
if(y1>y3)
{
OUR_SWAP(y1,y3,xs);
OUR_SWAP(x1,x3,xs);
OUR_SWAP(color1,color3,rs);
}
if(y2>y3)
{
OUR_SWAP(y2,y3,xs);
OUR_SWAP(x2,x3,xs);
OUR_SWAP(color2,color3,rs);
} //18t
//mempitch>>=2; //(sizeof(dest)/2);
dest = (CLR*)dest_buffer +y1*mempitch; //point to the line of y1
#if 1
if(y1<y2 ) //the top part
{
xs=(1<<(DRAW_P_SHFT_X))/(y1-y2);
xe=(1<<(DRAW_P_SHFT_X))/(y1-y3);
ks=((x1-x2))*xs; //slope 1 --> 2
ke=((x1-x3))*xe; //slope 1 --> 3
xs>>=(DRAW_P_SHFT_X-SHIFR_L);
xe>>=(DRAW_P_SHFT_X-SHIFR_L);
if(ks>ke) //start slope must be smaller than the end one
{
kre=(((color1&OUR_RGB_MASK8800)-(color2&OUR_RGB_MASK8800))>>16)*xs;
krs=(((color1&OUR_RGB_MASK8800)-(color3&OUR_RGB_MASK8800))>>16)*xe;
kge=(((color1&OUR_RGB_MASK0080)-(color2&OUR_RGB_MASK0080))>>8)*xs;
kgs=(((color1&OUR_RGB_MASK0080)-(color3&OUR_RGB_MASK0080))>>8)*xe;
kbe=(((color1&OUR_RGB_MASK0088)-(color2&OUR_RGB_MASK0088)))*xs;
kbs=(((color1&OUR_RGB_MASK0088)-(color3&OUR_RGB_MASK0088)))*xe;
OUR_SWAP(ks,ke,xs);
}
else if(ks<ke)
{
krs=(((color1&OUR_RGB_MASK8800)-(color2&OUR_RGB_MASK8800))>>16)*xs;
kre=(((color1&OUR_RGB_MASK8800)-(color3&OUR_RGB_MASK8800))>>16)*xe;
kgs=(((color1&OUR_RGB_MASK0080)-(color2&OUR_RGB_MASK0080))>>8)*xs;
kge=(((color1&OUR_RGB_MASK0080)-(color3&OUR_RGB_MASK0080))>>8)*xe;
kbs=(((color1&OUR_RGB_MASK0088)-(color2&OUR_RGB_MASK0088)))*xs;
kbe=(((color1&OUR_RGB_MASK0088)-(color3&OUR_RGB_MASK0088)))*xe;
}
else
{
return;
}
#define BMP_KKKK 5
//this place must be carefull
if((ke-ks)<(1<<DRAW_P_SHFT_X))
{
xs=((1<<(SHIFT+DRAW_P_SHFT_X-SHIFR_L-2)))/((ke-ks));// 28 -- 10 -20 =18 -10
//---------------------------------------------
kre= (kre-krs);
if(kre>(-(1<<DRAW_P_SHFT_X)) && kre<(1<<DRAW_P_SHFT_X) )
kre=(((kre)>>5)*xs)>>(SHIFT-SHIFR_L-5-2);
else
kre=(((kre)>>10)*xs)>>(SHIFT-SHIFR_L-10-2);
//----------------------------------------------
kge= (kge-kgs);
if(kge>(-(1<<DRAW_P_SHFT_X)) && kge<(1<<DRAW_P_SHFT_X))
kge=(((kge)>>5)*xs)>>(SHIFT-SHIFR_L-5-2);
else
kge=(((kge)>>10)*xs)>>(SHIFT-SHIFR_L-10-2);
//----------------------------------------------
kbe= (kbe-kbs);
if(kbe>(-(1<<DRAW_P_SHFT_X)) && kbe<(1<<DRAW_P_SHFT_X))
kbe=(((kbe)>>5)*xs)>>(SHIFT-SHIFR_L-5-2);
else
kbe=(((kbe)>>10)*xs)>>(SHIFT-SHIFR_L-10-2);
}
else
{
xs=((1<<(SHIFT+DRAW_P_SHFT_X-SHIFR_L)))/((ke-ks)>>3);
//---------------------------------------------
kre= (kre-krs);
if(kre>(-(1<<DRAW_P_SHFT_X)) && kre<(1<<DRAW_P_SHFT_X))
kre=(((kre)>>5)*xs)>>(SHIFT-SHIFR_L-5+3);
else
kre=(((kre)>>10)*xs)>>(SHIFT-SHIFR_L-10+3);
//----------------------------------------------
kge= (kge-kgs);
if(kge>(-(1<<DRAW_P_SHFT_X)) && kge<(1<<DRAW_P_SHFT_X))
kge=(((kge)>>5)*xs)>>(SHIFT-SHIFR_L-5+3);
else
kge=(((kge)>>10)*xs)>>(SHIFT-SHIFR_L-10+3);
//----------------------------------------------
kbe= (kbe-kbs);
if(kbe>(-(1<<DRAW_P_SHFT_X)) && kbe<(1<<DRAW_P_SHFT_X))
kbe=(((kbe)>>5)*xs)>>(SHIFT-SHIFR_L-5+3);
else
kbe=(((kbe)>>10)*xs)>>(SHIFT-SHIFR_L-10+3);
}
xs=(x1<<(DRAW_P_SHFT_X));
xe=(x1<<(DRAW_P_SHFT_X));
rs=(color1&OUR_RGB_MASK8800)<<(SHIFR_L-16);
gs=(color1&OUR_RGB_MASK0080)<<(SHIFR_L-8);
bs=(color1&OUR_RGB_MASK0088)<<SHIFR_L;
for(yinc=y1;yinc<y2;yinc++) //scan lines
{
k_r_inc=rs;
k_g_inc=gs;
k_b_inc=bs;
//------------------------------------------------------
xinc=xs>>(DRAW_P_SHFT_X);
y1=(xe>>(DRAW_P_SHFT_X));
dest[xinc++] =bmp->bmp_data[(((k_r_inc>>(SHIFR_L))&OUR_RGB_MASK0008)*bmp->width+(k_b_inc>>SHIFR_L))];
for(;xinc<=y1;)
{
FILE_BMP;
}
rs+=krs;
gs+=kgs;
bs+=kbs;
dest+=mempitch; //point to next line
xs+=ks; //next line xs
xe+=ke; //next line xe
}
if(y2<y3) //the butt part
{
y1=(1<<(DRAW_P_SHFT_X))/(y2-y3);
x1=((x2-x3))*y1;
y1>>=(DRAW_P_SHFT_X-SHIFR_L);
if(x1>ke)
{
ks=x1;
krs=(((color2&OUR_RGB_MASK8800)-(color3&OUR_RGB_MASK8800))>>16)*y1;
kgs=(((color2&OUR_RGB_MASK0080)-(color3&OUR_RGB_MASK0080))>>8)*y1;
kbs=(((color2&OUR_RGB_MASK0088)-(color3&OUR_RGB_MASK0088)))*y1;
}
else
{
ke=x1;
}
for(;yinc<=y3;yinc++)
{
k_r_inc=rs;
k_g_inc=gs;
k_b_inc=bs;
//------------------------------------------------------
xinc=xs>>(DRAW_P_SHFT_X);
y1=(xe>>(DRAW_P_SHFT_X));
dest[xinc++] =bmp->bmp_data[(((k_r_inc>>(SHIFR_L))&OUR_RGB_MASK0008)*bmp->width+(k_b_inc>>SHIFR_L))];
for(;xinc<=y1;)
{
FILE_BMP;
}
rs+=krs;
gs+=kgs;
bs+=kbs;
dest+=mempitch; //point to next line
xs+=ks; //next line xs
xe+=ke; //next line xe
}
}
return;
}
#else
#endif
//---------------------------------------------------------------------
else if(y2<y3)//the butt part
{
xs=((1<<SHIFR_L))/(y1-y3); //y1=y2
ks=((x1-x3))*xs; //slope 1 --> 2
ke=((x2-x3))*xs; //slope 1 --> 3
if(ks>ke) //start slope must be smaller than the end one
{
xe=((1<<SHIFR_L))/(x2-x1);
krs=(((color1&OUR_RGB_MASK8800)-(color3&OUR_RGB_MASK8800))>>16)*xs;
kre=(((color2&OUR_RGB_MASK8800)-(color1&OUR_RGB_MASK8800))>>16)*xe;
kgs=(((color1&OUR_RGB_MASK0080)-(color3&OUR_RGB_MASK0080))>>8)*xs;
kge=(((color2&OUR_RGB_MASK0080)-(color1&OUR_RGB_MASK0080))>>8)*xe;
kbs=(((color1&OUR_RGB_MASK0088)-(color3&OUR_RGB_MASK0088)))*xs;
kbe=(((color2&OUR_RGB_MASK0088)-(color1&OUR_RGB_MASK0088)))*xe;
rs=(color1&OUR_RGB_MASK8800)<<(SHIFR_L-16);
gs=(color1&OUR_RGB_MASK0080)<<(SHIFR_L-8);
bs=(color1&OUR_RGB_MASK0088)<<SHIFR_L;
xs=x1<<SHIFR_L;
xe=x2<<SHIFR_L;
}
else if(ks<ke)
{
xe=((1<<SHIFR_L))/(x1-x2);
krs=(((color2&OUR_RGB_MASK8800)-(color3&OUR_RGB_MASK8800))>>16)*xs;
kre=(((color1&OUR_RGB_MASK8800)-(color2&OUR_RGB_MASK8800))>>16)*xe;
kgs=(((color2&OUR_RGB_MASK0080)-(color3&OUR_RGB_MASK0080))>>8)*xs;
kge=(((color1&OUR_RGB_MASK0080)-(color2&OUR_RGB_MASK0080))>>8)*xe;
kbs=(((color2&OUR_RGB_MASK0088)-(color3&OUR_RGB_MASK0088)))*xs;
kbe=(((color1&OUR_RGB_MASK0088)-(color2&OUR_RGB_MASK0088)))*xe;
OUR_SWAP(ks,ke,xs);
rs=(color2&OUR_RGB_MASK8800)<<(SHIFR_L-16);
gs=(color2&OUR_RGB_MASK0080)<<(SHIFR_L-8);
bs=(color2&OUR_RGB_MASK0088)<<SHIFR_L;
xe=x1<<SHIFR_L;
xs=x2<<SHIFR_L;
}
else
{
return;
}
for(yinc=y1;yinc<y3;yinc++) //scan lines
{
k_r_inc=rs;
k_g_inc=gs;
k_b_inc=bs;
//------------------------------------------------------
xinc=xs>>SHIFR_L;
y1=(xe>>SHIFR_L);
dest[xinc++] =bmp->bmp_data[(((k_r_inc>>(SHIFR_L))&OUR_RGB_MASK0008)*bmp->width+(k_b_inc>>SHIFR_L))];
for(;xinc<=y1;)
{
FILE_BMP;
}
rs+=krs;
gs+=kgs;
bs+=kbs;
dest+=mempitch; //point to next line
xs+=ks; //next line xs
xe+=ke;
}
return;
}
}
//=======================================================================
void OUR_Draw_flat16( OUR_3D_OBJ_PTR obj,UCHAR *video_buffer, int lpitch)
{
uint32 i1,i2,i3;
uint32 poly;
uint32 num;
FIX_POINT3D_PTR point_work=obj->pPoints_work;
OUR_3D_TRAG_PTR triangle_work=obj->pTriangle;
num=obj->triangle_num;
for (poly=0; poly <num; poly++)
{
if(OUR_D_FrameTH==obj->pTriangle_changed[poly])
{
i1=triangle_work[poly].p1;
i2=triangle_work[poly].p2;
i3=triangle_work[poly].p3;
OUR_Draw_Triangle_2D16(point_work[i1].MM.x,
point_work[i1].MM.y,
point_work[i2].MM.x,
point_work[i2].MM.y,
point_work[i3].MM.x,
point_work[i3].MM.y,
triangle_work[poly].CC.clor,
video_buffer, lpitch);
OUR_D_triangle_drawed_num++;
}
}
}
void OUR_Draw_Gouraud16( OUR_3D_OBJ_PTR obj,UCHAR *video_buffer, int lpitch)
{
uint32 i1,i2,i3;
uint32 poly;
uint32 num;
FIX_POINT3D_PTR point_work=obj->pPoints_work;
OUR_3D_TRAG_PTR triangle_work=obj->pTriangle;
num=obj->triangle_num;
for (poly=0; poly <num; poly++)
{//poly=0x4a;
if(OUR_D_FrameTH==obj->pTriangle_changed[poly])
{
i1=triangle_work[poly].p1;
i2=triangle_work[poly].p2;
i3=triangle_work[poly].p3;
OUR_Draw_Gouraud_2D16(point_work[i1].MM.x,
point_work[i1].MM.y,
point_work[i2].MM.x,
point_work[i2].MM.y,
point_work[i3].MM.x,
point_work[i3].MM.y,
obj->clor_work[i1],
obj->clor_work[i2],
obj->clor_work[i3],
video_buffer, lpitch);
OUR_D_triangle_drawed_num++;
}
}
}
void OUR_Draw_bmp16( OUR_3D_OBJ_PTR obj,UCHAR *video_buffer, int lpitch)
{
uint32 i1,i2,i3;
uint32 poly;
uint32 num;
FIX_POINT3D_PTR point_work=obj->pPoints_work;
OUR_3D_TRAG_PTR triangle_work=obj->pTriangle;
num=obj->triangle_num;
for (poly=0; poly <num; poly++)
{//poly=0x4a;
if(OUR_D_FrameTH==obj->pTriangle_changed[poly])
{
i1=triangle_work[poly].p1;
i2=triangle_work[poly].p2;
i3=triangle_work[poly].p3;
OUR_Draw_BMP_2D16(point_work[i1].MM.x,
point_work[i1].MM.y,
point_work[i2].MM.x,
point_work[i2].MM.y,
point_work[i3].MM.x,
point_work[i3].MM.y,
triangle_work[poly].uv1,
triangle_work[poly].uv2,
triangle_work[poly].uv3,
video_buffer, lpitch,
obj->bmp_info);
OUR_D_triangle_drawed_num++;
}
}
}
//FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
//FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -