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- /**
- ** PIBITBLT.C
- **
- ** Copyright (C) 1992, Csaba Biegl
- ** 820 Stirrup Dr, Nashville, TN, 37221
- ** csaba@vuse.vanderbilt.edu
- **
- ** This file is distributed under the terms listed in the document
- ** "copying.cb", available from the author at the address above.
- ** A copy of "copying.cb" should accompany this file; if not, a copy
- ** should be available from where this file was obtained. This file
- ** may not be distributed without a verbatim copy of "copying.cb".
- ** You should also have received a copy of the GNU General Public
- ** License along with this program (it is in the file "copying");
- ** if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- ** Cambridge, MA 02139, USA.
- **
- ** This program is distributed in the hope that it will be useful,
- ** but WITHOUT ANY WARRANTY; without even the implied warranty of
- ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ** GNU General Public License for more details.
- **/
-
- #include "p8514a.h"
- #include "memcopy.h"
-
- static int blitmixes[] = {
- MIX_REPLACE | FSS_BITBLT,
- MIX_XOR | FSS_BITBLT,
- MIX_OR | FSS_BITBLT,
- MIX_AND | FSS_BITBLT
- };
-
- static int pc_blitmixes[] = {
- MIX_REPLACE | FSS_PCDATA,
- MIX_XOR | FSS_PCDATA,
- MIX_OR | FSS_PCDATA,
- MIX_AND | FSS_PCDATA
- };
-
- void _GrPIPixCopy(GC *dst,long daddr,GC *src,long saddr,int w,int h,int op)
- {
- pixptr dstp,srcp;
- int doff,soff;
- int oper = C_OPER(op);
-
- if((w <= 0) || (h <= 0)) return;
- _ClrDir();
- if(dst->gc_onscreen) {
- if(src->gc_onscreen) {
- WaitQueue(8);
- outpw(MAJ_AXIS_PCNT,(w - 1));
- outpw(MULTIFUNC_CNTL,((h - 1) | MIN_AXIS_PCNT));
- outpw(FRGD_MIX,blitmixes[oper]);
- if(daddr > saddr) {
- outpw(CUR_X,COORD_X(saddr) + w - 1);
- outpw(CUR_Y,COORD_Y(saddr) + h - 1);
- outpw(DESTX_DIASTP,COORD_X(daddr) + w - 1);
- outpw(DESTY_AXSTP,COORD_Y(daddr) + h - 1);
- outpw(CMD,(CMD_BITBLT | DRAW | PLANAR | WRTDATA));
- }
- else {
- outpw(CUR_X,COORD_X(saddr));
- outpw(CUR_Y,COORD_Y(saddr));
- outpw(DESTX_DIASTP,COORD_X(daddr));
- outpw(DESTY_AXSTP,COORD_Y(daddr));
- outpw(CMD,(CMD_BITBLT | INC_X | INC_Y | DRAW | PLANAR | WRTDATA));
- }
- return;
- }
- WaitQueue(6);
- outpw(CUR_X,COORD_X(daddr));
- outpw(CUR_Y,COORD_Y(daddr));
- outpw(MAJ_AXIS_PCNT,(w - 1));
- outpw(MULTIFUNC_CNTL,((h - 1) | MIN_AXIS_PCNT));
- outpw(FRGD_MIX,pc_blitmixes[oper]);
- srcp = P_ADDRESS(src,saddr);
- soff = src->gc_lineoffset - w;
- #ifdef __TURBOC__
- #define _HAVE_INLINE_
- if((w | soff | (int)srcp) & 1) {
- outpw(CMD,(CMD_RECT | INC_X | INC_Y | PCDATA | DRAW | WRTDATA));
- WaitQueue(8);
- asm cld;
- asm push ds;
- asm lds si,srcp;
- asm mov bx,WORD PTR h;
- asm mov dx,PIX_TRANS;
- BVLoop:
- asm mov cx,WORD PTR w;
- BHLoop:
- asm lodsb;
- asm out dx,ax;
- asm loop BHLoop;
- asm add si,WORD PTR soff;
- asm dec bx;
- asm jne BVLoop;
- asm pop ds;
- }
- else {
- w >>= 1;
- outpw(CMD,(CMD_RECT | INC_X | INC_Y | PCDATA | _16BIT | BYTSEQ | DRAW | WRTDATA));
- WaitQueue(8);
- asm .286
- asm cld;
- asm push ds;
- asm lds si,srcp;
- asm mov bx,WORD PTR h;
- asm mov dx,PIX_TRANS;
- WLoop:
- asm mov cx,WORD PTR w;
- asm rep outsw;
- asm add si,WORD PTR soff;
- asm dec bx;
- asm jne WLoop;
- asm pop ds;
- }
- #endif
- #ifdef __GNUC__
- #define _HAVE_INLINE_
- if((w | soff | (int)srcp) & 1) {
- outpw(CMD,(CMD_RECT | INC_X | INC_Y | PCDATA | DRAW | WRTDATA));
- WaitQueue(8);
- asm volatile(" \n\
- cld \n\
- movl %0,%%esi \n\
- movl %1,%%ebx \n\
- movl %2,%%edx \n\
- L_BVLoop: \n\
- movl %3,%%ecx \n\
- L_BHLoop: \n\
- lodsb \n\
- outw %%ax,%%dx \n\
- loop L_BHLoop \n\
- addl %4,%%esi \n\
- decl %%ebx \n\
- jne L_BVLoop "
- : /* no inputs */
- : "g" (srcp), "g" (h), "g" (PIX_TRANS), "g" (w), "g" (soff)
- : "si", "dx", "cx", "bx", "ax"
- );
- }
- else {
- w >>= 1;
- outpw(CMD,(CMD_RECT | INC_X | INC_Y | PCDATA | _16BIT | BYTSEQ | DRAW | WRTDATA));
- WaitQueue(8);
- asm volatile(" \n\
- cld \n\
- movl %0,%%esi \n\
- movl %1,%%ebx \n\
- movl %2,%%edx \n\
- L_WLoop: \n\
- movl %3,%%ecx \n\
- rep \n\
- outsw \n\
- addl %4,%%esi \n\
- decl %%ebx \n\
- jne L_WLoop "
- : /* no inputs */
- : "g" (srcp), "g" (h), "g" (PIX_TRANS), "g" (w), "g" (soff)
- : "si", "dx", "cx", "bx"
- );
- }
- #endif
- #ifndef _HAVE_INLINE_
- outpw(CMD,(CMD_RECT | INC_X | INC_Y | PCDATA | DRAW | WRTDATA));
- WaitQueue(8);
- while(--h >= 0) {
- for(doff = w; --doff >= 0; ) outpw(PIX_TRANS,*srcp++);
- srcp += soff;
- }
- #endif
- return;
- }
- if(src->gc_onscreen) {
- int command = CMD_RECT | INC_X | INC_Y | PCDATA | DRAW;
- WaitQueue(6);
- outpw(CUR_X,COORD_X(saddr));
- outpw(CUR_Y,COORD_Y(saddr));
- outpw(MAJ_AXIS_PCNT,(w - 1));
- outpw(MULTIFUNC_CNTL,((h - 1) | MIN_AXIS_PCNT));
- outpw(CMD,command);
- dstp = P_ADDRESS(dst,daddr);
- doff = dst->gc_lineoffset - w;
- while((inpw(GP_STAT) & DATARDY) == 0);
- while(--h >= 0) {
- switch(oper) {
- case C_XOR:
- for(soff = w; --soff >= 0; *dstp++ ^= inpw(PIX_TRANS));
- break;
- case C_OR:
- for(soff = w; --soff >= 0; *dstp++ |= inpw(PIX_TRANS));
- break;
- case C_AND:
- for(soff = w; --soff >= 0; *dstp++ &= inpw(PIX_TRANS));
- break;
- default:
- for(soff = w; --soff >= 0; *dstp++ = inpw(PIX_TRANS));
- break;
- }
- dstp += doff;
- }
- return;
- }
- _GrP8PixCopy(dst,daddr,src,saddr,w,h,op);
- }
-