?? display.c
字號:
y = *py++; Y2 = *Y2_ptr++; u = *pu++ >> 1; v = *pv++ >> 1; *dst++ = Pixel[Y_Table[((y+Y2)>>1)]|Cb_Table[u]|Cr_Table[v]]; *dst2++ = Pixel[Y_Table[Y2+12]|Cb_Table[u+12]|Cr_Table[v+12]]; y = *py++; Y2 = *Y2_ptr++; if (chroma_format==CHROMA444) { u = *pu++ >> 1; v = *pv++ >> 1; } *dst++ = Pixel[Y_Table[((y+Y2)>>1)+8]|Cb_Table[u+8]|Cr_Table[v+8]]; *dst2++ = Pixel[Y_Table[Y2+4]|Cb_Table[u+4]|Cr_Table[v+4]]; y = *py++; Y2 = *Y2_ptr++; u = *pu++ >> 1; v = *pv++ >> 1; *dst++ = Pixel[Y_Table[((y+Y2)>>1)+2]|Cb_Table[u+2]|Cr_Table[v+2]]; *dst2++ = Pixel[Y_Table[Y2+14]|Cb_Table[u+14]|Cr_Table[v+14]]; y = *py++; Y2 = *Y2_ptr++; if (chroma_format==CHROMA444) { u = *pu++ >> 1; v = *pv++ >> 1; } *dst++ = Pixel[Y_Table[((y+Y2)>>1)+10]|Cb_Table[u+10]|Cr_Table[v+10]]; *dst2++ = Pixel[Y_Table[Y2+6]|Cb_Table[u+6]|Cr_Table[v+6]]; } if (j==0) py -= Coded_Picture_Width; else py += Coded_Picture_Width; Y2_ptr += Coded_Picture_Width; dst += Coded_Picture_Width; dst2 += Coded_Picture_Width; if (chroma_format==CHROMA420) { pu -= Chroma_Width; pv -= Chroma_Width; } else { pu += Chroma_Width; pv += Chroma_Width; } /* line j + 2. j + 3 */ for (i=0; i<Coded_Picture_Width; i+=4) { y = *py++; Y2 = *Y2_ptr++; u = *pu++ >> 1; v = *pv++ >> 1; *dst++ = Pixel[Y_Table[((y+Y2)>>1)+3]|Cb_Table[u+3]|Cr_Table[v+3]]; *dst2++ = Pixel[Y_Table[Y2+15]|Cb_Table[u+15]|Cr_Table[v+15]]; y = *py++; Y2 = *Y2_ptr++; if (chroma_format==CHROMA444) { u = *pu++ >> 1; v = *pv++ >> 1; } *dst++ = Pixel[Y_Table[((y+Y2)>>1)+11]|Cb_Table[u+11]|Cr_Table[v+11]]; *dst2++ = Pixel[Y_Table[Y2+7]|Cb_Table[u+7]|Cr_Table[v+7]]; y = *py++; Y2 = *Y2_ptr++; u = *pu++ >> 1; v = *pv++ >> 1; *dst++ = Pixel[Y_Table[((y+Y2)>>1)+1]|Cb_Table[u+1]|Cr_Table[v+1]]; *dst2++ = Pixel[Y_Table[Y2+13]|Cb_Table[u+13]|Cr_Table[v+13]]; y = *py++; Y2 = *Y2_ptr++; if (chroma_format==CHROMA444) { u = *pu++ >> 1; v = *pv++ >> 1; } *dst++ = Pixel[Y_Table[((y+Y2)>>1)+9]|Cb_Table[u+9]|Cr_Table[v+9]]; *dst2++ = Pixel[Y_Table[Y2+5]|Cb_Table[u+5]|Cr_Table[v+5]]; } py += Coded_Picture_Width; Y2_ptr += Coded_Picture_Width; dst += Coded_Picture_Width; dst2 += Coded_Picture_Width; pu += Chroma_Width; pv += Chroma_Width; }}static void Dither_Top_Field420(src,dst)unsigned char *src[];unsigned char *dst;{ int i,j; int Y1,Cb1,Cr1,Y2,Cb2,Cr2; unsigned char *Y1_ptr,*Cb1_ptr,*Cr1_ptr,*Y2_ptr,*Cb2_ptr,*Cr2_ptr,*dst2; Y1_ptr = src[0]; Cb1_ptr = src[1]; Cr1_ptr = src[2]; Y2_ptr = Y1_ptr + (Coded_Picture_Width<<1); Cb2_ptr = Cb1_ptr + (Chroma_Width<<1); Cr2_ptr = Cr1_ptr + (Chroma_Width<<1); dst2 = dst + Coded_Picture_Width; for (j=0; j<Coded_Picture_Height; j+=4) { /* line j + 0, j + 1 */ for (i=0; i<Coded_Picture_Width; i+=4) { Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)]|Cb_Table[Cb1]|Cr_Table[Cr1]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+12]|Cb_Table[((3*Cb1+Cb2)>>2)+12] |Cr_Table[((3*Cr1+Cr2)>>2)+12]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+8]|Cb_Table[Cb1+8]|Cr_Table[Cr1+8]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+4]|Cb_Table[((3*Cb1+Cb2)>>2)+4] |Cr_Table[((3*Cr1+Cr2)>>2)+4]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+2]|Cb_Table[Cb1+2]|Cr_Table[Cr1+2]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+14]|Cb_Table[((3*Cb1+Cb2)>>2)+14] |Cr_Table[((3*Cr1+Cr2)>>2)+14]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+10]|Cb_Table[Cb1+10]|Cr_Table[Cr1+10]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+6]|Cb_Table[((3*Cb1+Cb2)>>2)+6] |Cr_Table[((3*Cr1+Cr2)>>2)+6]]; } Y1_ptr += Coded_Picture_Width; if (j!=(Coded_Picture_Height-4)) Y2_ptr += Coded_Picture_Width; else Y2_ptr -= Coded_Picture_Width; Cb1_ptr -= Chroma_Width; Cr1_ptr -= Chroma_Width; Cb2_ptr -= Chroma_Width; Cr2_ptr -= Chroma_Width; dst += Coded_Picture_Width; dst2 += Coded_Picture_Width; /* line j + 2, j + 3 */ for (i=0; i<Coded_Picture_Width; i+=4) { Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+3]|Cb_Table[((Cb1+Cb2)>>1)+3] |Cr_Table[((Cr1+Cr2)>>1)+3]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+15]|Cb_Table[((Cb1+3*Cb2)>>2)+15] |Cr_Table[((Cr1+3*Cr2)>>2)+15]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+11]|Cb_Table[((Cb1+Cb2)>>1)+11] |Cr_Table[((Cr1+Cr2)>>1)+11]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+7]|Cb_Table[((Cb1+3*Cb2)>>2)+7] |Cr_Table[((Cr1+3*Cr2)>>2)+7]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+1]|Cb_Table[((Cb1+Cb2)>>1)+1] |Cr_Table[((Cr1+Cr2)>>1)+1]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+13]|Cb_Table[((Cb1+3*Cb2)>>2)+13] |Cr_Table[((Cr1+3*Cr2)>>2)+13]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+9]|Cb_Table[((Cb1+Cb2)>>1)+9] |Cr_Table[((Cr1+Cr2)>>1)+9]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+5]|Cb_Table[((Cb1+3*Cb2)>>2)+5] |Cr_Table[((Cr1+3*Cr2)>>2)+5]]; } Y1_ptr += Coded_Picture_Width; Y2_ptr += Coded_Picture_Width; Cb1_ptr += Chroma_Width; Cr1_ptr += Chroma_Width; if (j!=(Coded_Picture_Height-8)) { Cb2_ptr += Chroma_Width; Cr2_ptr += Chroma_Width; } else { Cb2_ptr -= Chroma_Width; Cr2_ptr -= Chroma_Width; } dst += Coded_Picture_Width; dst2+= Coded_Picture_Width; }}static void Dither_Bottom_Field420(src,dst)unsigned char *src[];unsigned char *dst;{ int i,j; int Y1,Cb1,Cr1,Y2,Cb2,Cr2; unsigned char *Y1_ptr,*Cb1_ptr,*Cr1_ptr,*Y2_ptr,*Cb2_ptr,*Cr2_ptr,*dst2; Y2_ptr = Y1_ptr = src[0] + Coded_Picture_Width; Cb2_ptr = Cb1_ptr = src[1] + Chroma_Width; Cr2_ptr = Cr1_ptr = src[2] + Chroma_Width; dst2 = dst; for (j=0; j<Coded_Picture_Height; j+=4) { /* line j + 0, j + 1 */ for (i=0; i<Coded_Picture_Width; i+=4) { Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+15]|Cb_Table[((3*Cb1+Cb2)>>2)+15] |Cr_Table[((3*Cr1+Cr2)>>2)+15]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)]|Cb_Table[((Cb1+Cb2)>>1)] |Cr_Table[((Cr1+Cr2)>>1)]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+7]|Cb_Table[((3*Cb1+Cb2)>>2)+7] |Cr_Table[((3*Cr1+Cr2)>>2)+7]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+8]|Cb_Table[((Cb1+Cb2)>>1)+8] |Cr_Table[((Cr1+Cr2)>>1)+8]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+13]|Cb_Table[((3*Cb1+Cb2)>>2)+13] |Cr_Table[((3*Cr1+Cr2)>>2)+13]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+2]|Cb_Table[((Cb1+Cb2)>>1)+2] |Cr_Table[((Cr1+Cr2)>>1)+2]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+5]|Cb_Table[((3*Cb1+Cb2)>>2)+5] |Cr_Table[((3*Cr1+Cr2)>>2)+5]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+10]|Cb_Table[((Cb1+Cb2)>>1)+10] |Cr_Table[((Cr1+Cr2)>>1)+10]]; } if (j!=0) Y1_ptr += Coded_Picture_Width; else Y1_ptr -= Coded_Picture_Width; Y2_ptr += Coded_Picture_Width; Cb1_ptr -= Chroma_Width; Cr1_ptr -= Chroma_Width; Cb2_ptr -= Chroma_Width; Cr2_ptr -= Chroma_Width; if (j!=0) dst += Coded_Picture_Width; dst2 += Coded_Picture_Width; /* line j + 2, j + 3 */ for (i=0; i<Coded_Picture_Width; i+=4) { Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+12]|Cb_Table[((Cb1+3*Cb2)>>2)+12] |Cr_Table[((Cr1+3*Cr2)>>2)+12]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+3]|Cb_Table[Cb2+3] |Cr_Table[Cr2+3]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+4]|Cb_Table[((Cb1+3*Cb2)>>2)+4] |Cr_Table[((Cr1+3*Cr2)>>2)+4]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+11]|Cb_Table[Cb2+11] |Cr_Table[Cr2+11]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+14]|Cb_Table[((Cb1+3*Cb2)>>2)+14] |Cr_Table[((Cr1+3*Cr2)>>2)+14]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+1]|Cb_Table[Cb2+1] |Cr_Table[Cr2+1]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+6]|Cb_Table[((Cb1+3*Cb2)>>2)+6] |Cr_Table[((Cr1+3*Cr2)>>2)+6]]; *dst2++ = Pixel[Y_Table[((Y1+3*Y2)>>2)+9]|Cb_Table[Cb2+9] |Cr_Table[Cr2+9]]; } Y1_ptr += Coded_Picture_Width; Y2_ptr += Coded_Picture_Width; if (j!=0) { Cb1_ptr += Chroma_Width; Cr1_ptr += Chroma_Width; } else { Cb1_ptr -= Chroma_Width; Cr1_ptr -= Chroma_Width; } Cb2_ptr += Chroma_Width; Cr2_ptr += Chroma_Width; dst += Coded_Picture_Width; dst2+= Coded_Picture_Width; } Y2_ptr -= (Coded_Picture_Width<<1); Cb2_ptr -= (Chroma_Width<<1); Cr2_ptr -= (Chroma_Width<<1); /* dither last line */ for (i=0; i<Coded_Picture_Width; i+=4) { Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+15]|Cb_Table[((3*Cb1+Cb2)>>2)+15] |Cr_Table[((3*Cr1+Cr2)>>2)+15]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+7]|Cb_Table[((3*Cb1+Cb2)>>2)+7] |Cr_Table[((3*Cr1+Cr2)>>2)+7]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; Cb1 = *Cb1_ptr++ >> 1; Cr1 = *Cr1_ptr++ >> 1; Cb2 = *Cb2_ptr++ >> 1; Cr2 = *Cr2_ptr++ >> 1; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+13]|Cb_Table[((3*Cb1+Cb2)>>2)+13] |Cr_Table[((3*Cr1+Cr2)>>2)+13]]; Y1 = *Y1_ptr++; Y2 = *Y2_ptr++; *dst++ = Pixel[Y_Table[((3*Y1+Y2)>>2)+5]|Cb_Table[((3*Cb1+Cb2)>>2)+5] |Cr_Table[((3*Cr1+Cr2)>>2)+5]]; }}#endif?? 快捷鍵說明
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