1 /* $Id: bitblt.c,v 1.8 2002-09-04 23:29:53 btb Exp $ */
3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
4 SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
7 IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
9 FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
17 * Routines for bitblt's.
20 * Revision 1.29 1995/03/14 12:14:28 john
21 * Added code to double horz/vert bitblts.
23 * Revision 1.28 1995/03/13 09:01:48 john
24 * Fixed bug with VFX1 screen not tall enough.
26 * Revision 1.27 1995/03/01 15:38:10 john
27 * Better ModeX support.
29 * Revision 1.26 1994/12/15 12:19:00 john
30 * Added gr_bm_bitblt (clipped!) function.
32 * Revision 1.25 1994/12/09 18:58:42 matt
33 * Took out include of 3d.h
35 * Revision 1.24 1994/11/28 17:08:32 john
36 * Took out some unused functions in linear.asm, moved
37 * gr_linear_movsd from linear.asm to bitblt.c, made sure that
38 * the code in ibiblt.c sets the direction flags before rep movsing.
40 * Revision 1.22 1994/11/23 16:04:00 john
41 * Fixed generic rle'ing to use new bit method.
43 * Revision 1.21 1994/11/18 22:51:03 john
44 * Changed a bunch of shorts to ints in calls.
46 * Revision 1.20 1994/11/10 15:59:48 john
47 * Fixed bugs with canvas's being created with bogus bm_flags.
49 * Revision 1.19 1994/11/09 21:03:35 john
50 * Added RLE for svga gr_ubitmap.
52 * Revision 1.18 1994/11/09 17:41:29 john
53 * Made a slow version of rle bitblt to svga, modex.
55 * Revision 1.17 1994/11/09 16:35:15 john
56 * First version with working RLE bitmaps.
58 * Revision 1.16 1994/11/04 10:06:58 john
59 * Added fade table for fading fonts. Made font that partially clips
60 * not print a warning message.
62 * Revision 1.15 1994/09/22 16:08:38 john
63 * Fixed some palette stuff.
65 * Revision 1.14 1994/09/19 11:44:27 john
66 * Changed call to allocate selector to the dpmi module.
68 * Revision 1.13 1994/08/08 13:03:00 john
69 * Fixed bug in gr_bitmap in modex
71 * Revision 1.12 1994/07/13 19:47:23 john
72 * Fixed bug with modex bitblt to page 2 not working.
74 * Revision 1.11 1994/05/31 11:10:52 john
75 * *** empty log message ***
77 * Revision 1.10 1994/03/18 15:24:34 matt
78 * Removed interlace stuff
80 * Revision 1.9 1994/02/18 15:32:20 john
81 * *** empty log message ***
83 * Revision 1.8 1994/02/01 13:22:54 john
84 * *** empty log message ***
86 * Revision 1.7 1994/01/13 08:28:25 mike
87 * Modify rect copy to copy alternate scanlines when in interlaced mode.
89 * Revision 1.6 1993/12/28 12:09:46 john
92 * Revision 1.5 1993/10/26 13:18:09 john
93 * *** empty log message ***
95 * Revision 1.4 1993/10/15 16:23:30 john
98 * Revision 1.3 1993/09/13 17:52:58 john
99 * Fixed bug in BitBlt linear to SVGA
101 * Revision 1.2 1993/09/08 14:47:00 john
102 * Made bitmap00 add rowsize instead of bitmap width.
103 * Other routines might have this problem too.
105 * Revision 1.1 1993/09/08 11:43:01 john
114 #include "pa_enabl.h" //$$POLY_ACC
120 #include "byteswap.h" // because of rle code that has short for row offsets
124 #include "ogl_init.h"
127 #if defined(POLY_ACC)
128 #include "poly_acc.h"
131 int gr_bitblt_dest_step_shift = 0;
132 int gr_bitblt_double = 0;
133 ubyte *gr_bitblt_fade_table=NULL;
135 extern void gr_vesa_bitmap( grs_bitmap * source, grs_bitmap * dest, int x, int y );
142 #define test_byteblit 0
144 ubyte test_byteblit = 0;
147 void gr_linear_movsd(ubyte * src, ubyte * dest, unsigned int num_pixels )
154 // check to see if we are starting on an even byte boundry
155 // if not, move appropriate number of bytes to even
158 if ( (num_pixels < THRESHOLD) || (((int)src & 0x7) != ((int)dest & 0x7)) || test_byteblit ) {
159 for (i = 0; i < num_pixels; i++)
165 if ((r = (int)src & 0x7)) {
166 for (i = 0; i < 8 - r; i++)
175 for (i = 0; i < n; i++)
179 for (i = 0; i < r; i++)
183 #endif //#ifdef NO_ASM
186 static void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels );
188 #if !defined(NO_ASM) && defined(__WATCOMC__)
190 #pragma aux gr_linear_rep_movsdm parm [esi] [edi] [ecx] modify exact [ecx esi edi eax] = \
202 #elif !defined(NO_ASM) && defined(__GNUC__)
204 static inline void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels ) {
206 __asm__ __volatile__ (
208 " movb (%%esi), %%al;"
212 " movb %%al,(%%edi);"
217 : "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2])
218 : "0" (src), "1" (dest), "2" (num_pixels)
222 #elif !defined(NO_ASM) && defined(_MSC_VER)
224 __inline void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels )
230 mov ecx, [num_pixels]
245 static void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels )
248 for (i=0; i<num_pixels; i++ ) {
249 if (*src != TRANSPARENCY_COLOR )
258 static void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value );
260 #if !defined(NO_ASM) && defined(__WATCOMC__)
262 #pragma aux gr_linear_rep_movsdm_faded parm [esi] [edi] [ecx] [ebx] modify exact [ecx esi edi eax ebx] = \
270 "mov al, gr_fade_table[eax]" \
277 #elif !defined(NO_ASM) && defined(__GNUC__)
279 /* #pragma aux gr_linear_rep_movsdm_faded parm [esi] [edi] [ecx] [ebx] modify exact [ecx esi edi eax ebx] */
280 static inline void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value ) {
282 __asm__ __volatile__ (
283 " xorl %%eax, %%eax;"
286 " movb (%%esi), %%al;"
291 " movb gr_fade_table(%%eax), %%al;"
293 " movb _gr_fade_table(%%eax), %%al;"
295 " movb %%al, (%%edi);"
300 : "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2]), "=b" (dummy[3])
301 : "0" (src), "1" (dest), "2" (num_pixels), "3" (fade_value)
305 #elif !defined(NO_ASM) && defined(_MSC_VER)
307 __inline void gr_linear_rep_movsdm_faded(void * src, void * dest, unsigned int num_pixels, ubyte fade_value )
312 mov ecx, [num_pixels]
313 movzx ebx, byte ptr [fade_value]
321 mov al, gr_fade_table[eax]
332 static void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value )
338 fade_base = gr_fade_table + (fade_value * 256);
340 for (i=num_pixels; i != 0; i-- )
343 if (source != (ubyte)TRANSPARENCY_COLOR )
344 *dest = *(fade_base + source);
353 static void gr_linear_rep_movsd_2x(ubyte * src, ubyte * dest, unsigned int num_dest_pixels );
355 #if !defined(NO_ASM) && defined(__WATCOMC__)
357 #pragma aux gr_linear_rep_movsd_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx] = \
377 #elif !defined(NO_ASM) && defined (__GNUC__)
379 static inline void gr_linear_rep_movsd_2x(ubyte * src, ubyte * dest, unsigned int num_dest_pixels ) {
380 /* #pragma aux gr_linear_rep_movsd_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx] */
382 __asm__ __volatile__ (
385 "movb (%%esi), %%al;"
386 "movb %%al, (%%edi);"
392 "movb (%%esi), %%al;"
394 "movw %%ax, (%%edi);"
401 : "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2])
402 : "0" (src), "1" (dest), "2" (num_dest_pixels)
406 #elif !defined(NO_ASM) && defined(_MSC_VER)
408 __inline void gr_linear_rep_movsd_2x(ubyte * src, ubyte * dest, unsigned int num_dest_pixels )
413 mov ecx, [num_dest_pixels]
437 static void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_pixels)
439 double *d = (double *)dest;
440 uint *s = (uint *)src;
445 if (num_pixels & 0x3) {
446 // not a multiple of 4? do single pixel at a time
447 for (i=0; i<num_pixels; i++) {
454 for (i = 0; i < num_pixels / 4; i++) {
457 temp = ((temp >> 8) & 0x00FFFF00) | (temp & 0xFF0000FF); // 0xABCDEFGH -> 0xABABCDEF
458 temp = ((temp >> 8) & 0x000000FF) | (temp & 0xFFFFFF00); // 0xABABCDEF -> 0xABABCDCD
459 doubletemp[0] = temp;
461 work = ((work << 8) & 0x00FFFF00) | (work & 0xFF0000FF); // 0xABCDEFGH -> 0xABEFGHGH
462 work = ((work << 8) & 0xFF000000) | (work & 0x00FFFFFF); // 0xABEFGHGH -> 0xEFEFGHGH
463 doubletemp[1] = work;
465 *d = *(double *) &(doubletemp[0]);
475 static void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize );
477 #if !defined(NO_ASM) && defined(__WATCOMC__)
479 #pragma aux modex_copy_column parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = \
488 #elif !defined(NO_ASM) && defined(__GNUC__)
490 static inline void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize ) {
491 /*#pragma aux modex_copy_column parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = */
492 __asm__ __volatile__ (
494 "movb (%%esi), %%al;"
496 "movb %%al, (%%edi);"
500 : : "S" (src), "D" (dest), "c" (num_pixels), "b" (src_rowsize), "d" (dest_rowsize)
501 : "%eax", "%ecx", "%esi", "%edi");
506 static void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize )
510 num_pixels = num_pixels;
511 src_rowsize = src_rowsize;
512 dest_rowsize = dest_rowsize;
519 static void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize );
521 #if !defined(NO_ASM) && defined(__WATCOMC__)
523 #pragma aux modex_copy_column_m parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = \
535 #elif !defined(NO_ASM) && defined(__GNUC__)
537 static inline void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize ) {
538 /* #pragma aux modex_copy_column_m parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = */
540 __asm__ __volatile__ (
542 "movb (%%esi), %%al;"
546 "movb %%al, (%%edi);"
551 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
552 : "1" (src), "2" (dest), "0" (num_pixels), "b" (src_rowsize), "d" (dest_rowsize)
558 static void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize )
562 num_pixels = num_pixels;
563 src_rowsize = src_rowsize;
564 dest_rowsize = dest_rowsize;
570 #endif /* __MSDOS__ */
572 void gr_ubitmap00( int x, int y, grs_bitmap *bm )
577 unsigned char * dest;
580 dest_rowsize=grd_curcanv->cv_bitmap.bm_rowsize << gr_bitblt_dest_step_shift;
581 dest = &(grd_curcanv->cv_bitmap.bm_data[ dest_rowsize*y+x ]);
585 for (y1=0; y1 < bm->bm_h; y1++ ) {
586 if (gr_bitblt_double)
587 gr_linear_rep_movsd_2x( src, dest, bm->bm_w );
589 gr_linear_movsd( src, dest, bm->bm_w );
590 src += bm->bm_rowsize;
591 dest+= (int)(dest_rowsize);
595 void gr_ubitmap00m( int x, int y, grs_bitmap *bm )
600 unsigned char * dest;
603 dest_rowsize=grd_curcanv->cv_bitmap.bm_rowsize << gr_bitblt_dest_step_shift;
604 dest = &(grd_curcanv->cv_bitmap.bm_data[ dest_rowsize*y+x ]);
608 if (gr_bitblt_fade_table==NULL) {
609 for (y1=0; y1 < bm->bm_h; y1++ ) {
610 gr_linear_rep_movsdm( src, dest, bm->bm_w );
611 src += bm->bm_rowsize;
612 dest+= (int)(dest_rowsize);
615 for (y1=0; y1 < bm->bm_h; y1++ ) {
616 gr_linear_rep_movsdm_faded( src, dest, bm->bm_w, gr_bitblt_fade_table[y1+y] );
617 src += bm->bm_rowsize;
618 dest+= (int)(dest_rowsize);
643 static void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels );
645 #if !defined(NO_ASM) && defined(__WATCOMC__)
647 #pragma aux modex_copy_scanline parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = \
654 " mov al, [esi+8] " \
655 " mov ah, [esi+12] " \
658 " mov ah, [esi+4] " \
663 " jne next4pixels " \
676 #elif !defined (NO_ASM) && defined(__GNUC__)
678 static inline void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels ) {
679 /* #pragma aux modex_copy_scanline parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] */
681 __asm__ __volatile__ (
682 " movl %%ecx, %%ebx;"
688 " movb 8(%%esi), %%al;"
689 " movb 12(%%esi), %%ah;"
691 " movb (%%esi), %%al;"
692 " movb 4(%%esi), %%ah;"
693 " movl %%eax, (%%edi);"
702 " movb (%%esi), %%al;"
704 " movb %%al, (%%edi);"
709 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
710 : "1" (src), "2" (dest), "0" (npixels)
711 : "%eax", "%ebx", "%edx" );
716 static void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels )
726 static void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels );
728 #if !defined(NO_ASM) && defined(__WATCOMC__)
730 #pragma aux modex_copy_scanline_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = \
737 " mov al, [esi+4] " \
738 " mov ah, [esi+6] " \
741 " mov ah, [esi+2] " \
746 " jne next4pixels " \
759 #elif !defined(NO_ASM) && defined(__GNUC__)
761 static inline void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels ) {
762 /* #pragma aux modex_copy_scanline_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = */
764 __asm__ __volatile__ (
765 " movl %%ecx, %%ebx;"
771 " movb 4(%%esi), %%al;"
772 " movb 6(%%esi), %%ah;"
774 " movb (%%esi), %%al;"
775 " movb 2(%%esi), %%ah;"
776 " movl %%eax, (%%edi);"
785 " movb (%%esi),%%al;"
787 " movb %%al, (%%edi);"
792 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
793 : "1" (src), "2" (dest), "0" (npixels)
794 : "%eax", "%ebx", "%edx" );
799 static void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels )
810 // From Linear to ModeX
811 void gr_bm_ubitblt01(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
821 sstep = src->bm_rowsize;
822 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
824 if (!gr_bitblt_double) {
825 for (plane=0; plane<4; plane++ ) {
826 gr_modex_setplane( (plane+dx)&3 );
827 sbits = src->bm_data + (src->bm_rowsize * sy) + sx + plane;
828 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + ((plane+dx)/4) ];
830 if ( (w&3) > plane ) w1++;
831 for (y=dy; y < dy+h; y++ ) {
832 modex_copy_scanline( sbits, dbits, w1 );
838 for (plane=0; plane<4; plane++ ) {
839 gr_modex_setplane( (plane+dx)&3 );
840 sbits = src->bm_data + (src->bm_rowsize * sy) + sx + plane/2;
841 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + ((plane+dx)/4) ];
843 if ( (w&3) > plane ) w1++;
844 for (y=dy; y < dy+h; y++ ) {
845 modex_copy_scanline_2x( sbits, dbits, w1 );
854 // From Linear to ModeX masked
855 void gr_bm_ubitblt01m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
866 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
867 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + dx/4];
869 for (x=dx; x < dx+w; x++ ) {
870 gr_modex_setplane( x&3 );
874 //for (y=0; y < h; y++ ) {
875 // *dbits1 = *sbits1;
876 // sbits1 += src_bm_rowsize;
877 // dbits1 += dest_bm_rowsize;
879 modex_copy_column_m(sbits, dbits, h, src->bm_rowsize, dest->bm_rowsize << gr_bitblt_dest_step_shift );
887 #endif /* __MSDOS__ */
890 void gr_ubitmap012( int x, int y, grs_bitmap *bm )
897 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
898 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
899 gr_setcolor( *src++ );
905 void gr_ubitmap012m( int x, int y, grs_bitmap *bm )
912 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
913 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
914 if ( *src != TRANSPARENCY_COLOR ) {
923 #if defined(POLY_ACC)
924 void gr_ubitmap05( int x, int y, grs_bitmap *bm )
933 dst = (short *)(DATA + y * ROWSIZE + x * PA_BPP);
934 mod = ROWSIZE / 2 - bm->bm_w;
936 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
937 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
938 *dst++ = pa_clut[*src++];
944 void gr_ubitmap05m( int x, int y, grs_bitmap *bm )
953 dst = (short *)(DATA + y * ROWSIZE + x * PA_BPP);
954 mod = ROWSIZE / 2 - bm->bm_w;
956 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
957 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
958 if ( *src != TRANSPARENCY_COLOR ) {
959 *dst = pa_clut[*src];
968 void gr_bm_ubitblt05_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
970 unsigned short * dbits;
971 unsigned char * sbits, scanline[640];
972 int i, data_offset, j, nextrow;
975 nextrow=dest->bm_rowsize/PA_BPP;
978 if (src->bm_flags & BM_FLAG_RLE_BIG)
981 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
982 for (i=0; i<sy; i++ )
983 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
985 dbits = (unsigned short *)(dest->bm_data + (dest->bm_rowsize * dy) + dx*PA_BPP);
987 // No interlacing, copy the whole buffer.
988 for (i=0; i < h; i++ ) {
989 gr_rle_expand_scanline( scanline, sbits, sx, sx+w-1 );
990 for(j = 0; j != w; ++j)
991 dbits[j] = pa_clut[scanline[j]];
992 if ( src->bm_flags & BM_FLAG_RLE_BIG )
993 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
995 sbits += (int)(src->bm_data[4+i+sy]);
1000 void gr_bm_ubitblt05m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1002 unsigned short * dbits;
1003 unsigned char * sbits, scanline[640];
1004 int i, data_offset, j, nextrow;
1007 nextrow=dest->bm_rowsize/PA_BPP;
1009 if (src->bm_flags & BM_FLAG_RLE_BIG)
1012 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1013 for (i=0; i<sy; i++ )
1014 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1016 dbits = (unsigned short *)(dest->bm_data + (dest->bm_rowsize * dy) + dx*PA_BPP);
1018 // No interlacing, copy the whole buffer.
1019 for (i=0; i < h; i++ ) {
1020 gr_rle_expand_scanline( scanline, sbits, sx, sx+w-1 );
1021 for(j = 0; j != w; ++j)
1022 if(scanline[j] != TRANSPARENCY_COLOR)
1023 dbits[j] = pa_clut[scanline[j]];
1024 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1025 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1027 sbits += (int)(src->bm_data[4+i+sy]);
1033 void gr_ubitmapGENERIC(int x, int y, grs_bitmap * bm)
1035 register int x1, y1;
1037 for (y1=0; y1 < bm->bm_h; y1++ ) {
1038 for (x1=0; x1 < bm->bm_w; x1++ ) {
1039 gr_setcolor( gr_gpixel(bm,x1,y1) );
1040 gr_upixel( x+x1, y+y1 );
1045 void gr_ubitmapGENERICm(int x, int y, grs_bitmap * bm)
1047 register int x1, y1;
1050 for (y1=0; y1 < bm->bm_h; y1++ ) {
1051 for (x1=0; x1 < bm->bm_w; x1++ ) {
1052 c = gr_gpixel(bm,x1,y1);
1053 if ( c != TRANSPARENCY_COLOR ) {
1055 gr_upixel( x+x1, y+y1 );
1063 // From linear to SVGA
1064 void gr_bm_ubitblt02(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1066 unsigned char * sbits;
1068 unsigned int offset, EndingOffset, VideoLocation;
1070 int sbpr, dbpr, y1, page, BytesToMove;
1072 sbpr = src->bm_rowsize;
1074 dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1076 VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1078 sbits = src->bm_data + ( sbpr*sy ) + sx;
1080 for (y1=0; y1 < h; y1++ ) {
1082 page = VideoLocation >> 16;
1083 offset = VideoLocation & 0xFFFF;
1085 gr_vesa_setpage( page );
1087 EndingOffset = offset+w-1;
1089 if ( EndingOffset <= 0xFFFF )
1091 if ( gr_bitblt_double )
1092 gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), w );
1094 gr_linear_movsd( (void *)sbits, (void *)(offset+0xA0000), w );
1096 VideoLocation += dbpr;
1101 BytesToMove = 0xFFFF-offset+1;
1103 if ( gr_bitblt_double )
1104 gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1106 gr_linear_movsd( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1109 gr_vesa_setpage(page);
1111 if ( gr_bitblt_double )
1112 gr_linear_rep_movsd_2x( (void *)(sbits+BytesToMove/2), (void *)0xA0000, EndingOffset - 0xFFFF );
1114 gr_linear_movsd( (void *)(sbits+BytesToMove), (void *)0xA0000, EndingOffset - 0xFFFF );
1116 VideoLocation += dbpr;
1125 void gr_bm_ubitblt02m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1127 unsigned char * sbits;
1129 unsigned int offset, EndingOffset, VideoLocation;
1131 int sbpr, dbpr, y1, page, BytesToMove;
1133 sbpr = src->bm_rowsize;
1135 dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1137 VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1139 sbits = src->bm_data + ( sbpr*sy ) + sx;
1141 for (y1=0; y1 < h; y1++ ) {
1143 page = VideoLocation >> 16;
1144 offset = VideoLocation & 0xFFFF;
1146 gr_vesa_setpage( page );
1148 EndingOffset = offset+w-1;
1150 if ( EndingOffset <= 0xFFFF )
1152 gr_linear_rep_movsdm( (void *)sbits, (void *)(offset+0xA0000), w );
1154 VideoLocation += dbpr;
1159 BytesToMove = 0xFFFF-offset+1;
1161 gr_linear_rep_movsdm( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1164 gr_vesa_setpage(page);
1166 gr_linear_rep_movsdm( (void *)(sbits+BytesToMove), (void *)0xA0000, EndingOffset - 0xFFFF );
1168 VideoLocation += dbpr;
1175 // From SVGA to linear
1176 void gr_bm_ubitblt20(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1178 unsigned char * dbits;
1180 unsigned int offset, offset1, offset2;
1182 int sbpr, dbpr, y1, page;
1184 dbpr = dest->bm_rowsize;
1186 sbpr = src->bm_rowsize;
1188 for (y1=0; y1 < h; y1++ ) {
1190 offset2 = (unsigned int)src->bm_data + (sbpr * (y1+sy)) + sx;
1191 dbits = dest->bm_data + (dbpr * (y1+dy)) + dx;
1193 page = offset2 >> 16;
1194 offset = offset2 & 0xFFFF;
1195 offset1 = offset+w-1;
1196 gr_vesa_setpage( page );
1198 if ( offset1 > 0xFFFF ) {
1199 // Overlaps two pages
1200 while( offset <= 0xFFFF )
1201 *dbits++ = gr_video_memory[offset++];
1202 offset1 -= (0xFFFF+1);
1205 gr_vesa_setpage(page);
1207 while( offset <= offset1 )
1208 *dbits++ = gr_video_memory[offset++];
1215 //@extern int Interlacing_on;
1217 // From Linear to Linear
1218 void gr_bm_ubitblt00(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1220 unsigned char * dbits;
1221 unsigned char * sbits;
1222 //int src_bm_rowsize_2, dest_bm_rowsize_2;
1227 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1228 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1230 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1232 // No interlacing, copy the whole buffer.
1233 for (i=0; i < h; i++ ) {
1234 if (gr_bitblt_double)
1235 gr_linear_rep_movsd_2x( sbits, dbits, w );
1237 gr_linear_movsd( sbits, dbits, w );
1238 sbits += src->bm_rowsize;
1242 // From Linear to Linear Masked
1243 void gr_bm_ubitblt00m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1245 unsigned char * dbits;
1246 unsigned char * sbits;
1247 //int src_bm_rowsize_2, dest_bm_rowsize_2;
1251 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1252 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1254 // No interlacing, copy the whole buffer.
1256 if (gr_bitblt_fade_table==NULL) {
1257 for (i=0; i < h; i++ ) {
1258 gr_linear_rep_movsdm( sbits, dbits, w );
1259 sbits += src->bm_rowsize;
1260 dbits += dest->bm_rowsize;
1263 for (i=0; i < h; i++ ) {
1264 gr_linear_rep_movsdm_faded( sbits, dbits, w, gr_bitblt_fade_table[dy+i] );
1265 sbits += src->bm_rowsize;
1266 dbits += dest->bm_rowsize;
1272 extern void gr_lbitblt( grs_bitmap * source, grs_bitmap * dest, int height, int width );
1274 #if 1 //def MACINTOSH
1276 // width == number of destination pixels
1278 void gr_linear_movsd_double(ubyte *src, ubyte *dest, int width)
1280 double *d = (double *)dest;
1281 uint *s = (uint *)src;
1286 num_pixels = width / 2;
1287 if ( (num_pixels & 0x3) || (((int)src & 0x7) != ((int)dest & 0x7)) ) {
1288 // not a multiple of 4? do single pixel at a time
1289 for (i=0; i<num_pixels; i++) {
1296 for (i = 0; i < num_pixels / 4; i++) {
1299 temp = ((temp >> 8) & 0x00FFFF00) | (temp & 0xFF0000FF); // 0xABCDEFGH -> 0xABABCDEF
1300 temp = ((temp >> 8) & 0x000000FF) | (temp & 0xFFFFFF00); // 0xABABCDEF -> 0xABABCDCD
1301 doubletemp[0] = temp;
1303 work = ((work << 8) & 0x00FFFF00) | (work & 0xFF0000FF); // 0xABCDEFGH -> 0xABEFGHGH
1304 work = ((work << 8) & 0xFF000000) | (work & 0x00FFFFFF); // 0xABEFGHGH -> 0xEFEFGHGH
1305 doubletemp[1] = work;
1307 *d = *(double *) &(doubletemp[0]);
1312 //extern void BlitLargeAlign(ubyte *draw_buffer, int dstRowBytes, ubyte *dstPtr, int w, int h, int modulus);
1315 asm void BlitLargeAlign(ubyte *rSrcPtr, int rDblDStrd, ubyte *rDst1Ptr, int rWidth, int rHeight, int rModulus)
1317 stw r31,-4(SP) // store non-volatile reg in red zone
1318 addi r5,r5,-8 // subtract 8 from dst
1319 stw r30,-8(SP) // store non-volatile reg in red zone
1321 la r30,-16(SP) // calculate copy of local 8-byte variable
1323 // rSStrd = modulus - w
1324 add r31,r5,r4 // dst2 = dstRowBytes + dst1
1325 sub r4,r4,r6 // r4 = dstRowBytes - w
1326 addi r7,r7,-1 // subtract 1 from height count
1327 srawi r6,r6,2 // rWidth = w >> 2
1328 addi r3,r3,-4 // subtract 4 from src
1329 addi r6,r6,-1 // subtract 1 from width count
1330 add r4,r4,r4 // rDblDStrd = 2 * r4
1332 BlitLargeAlignY: // y count is in r7
1333 lwzu r10,4(r3) // load a long into r10
1334 mr r0,r10 // put a copy in r0
1336 // these are simplified -- can't use 'em inslwi r0,r10,16,8
1337 // these are simplified -- can't use 'em insrwi r11,r10,16,8
1338 rlwimi r0,r10,24,8,31
1339 rlwimi r11,r10,8,8,23
1340 rlwimi r0,r10,16,24,31
1342 rlwimi r11,r10,16,0,7
1344 mtctr r6 // copy x count into the counter
1348 lwzu r10,4(r3) // load a long into r10
1350 mr r0,r10 // put a copy in r0
1352 // simplefied inslwi r0,r10,16,8
1353 // simplefied insrwi r11,r10,16,8
1354 rlwimi r0,r10,24,8,31
1355 rlwimi r11,r10,8,8,23
1356 rlwimi r0,r10,16,24,31
1358 rlwimi r11,r10,16,0,7
1362 bdnz BlitLargeAlignX // loop over all x
1365 addic. r7,r7,-1 // decrement the counter
1373 bne BlitLargeAlignY // loop for all y
1375 lwz r30,-8(SP) // restore non-volatile regs
1376 lwz r31,-4(SP) // restore non-volatile regs
1377 blr // return to caller
1380 void gr_bm_ubitblt_double(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap *src, grs_bitmap *dest)
1386 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1387 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1388 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1389 Assert( !((int)dbits & 0x7) ); // assert to check double word alignment
1390 BlitLargeAlign(sbits, dstep, dbits, src->bm_w, src->bm_h, src->bm_rowsize);
1394 // w and h are the doubled width and height
1396 void gr_bm_ubitblt_double_slow(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap *src, grs_bitmap *dest)
1402 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1403 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1404 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1406 for (i=0; i < h; i++ ) {
1408 gr_linear_movsd_double(sbits, dbits, w);
1411 sbits += src->bm_rowsize;
1418 // Clipped bitmap ...
1420 void gr_bitmap( int x, int y, grs_bitmap *bm )
1422 int dx1=x, dx2=x+bm->bm_w-1;
1423 int dy1=y, dy2=y+bm->bm_h-1;
1426 if ((dx1 >= grd_curcanv->cv_bitmap.bm_w ) || (dx2 < 0)) return;
1427 if ((dy1 >= grd_curcanv->cv_bitmap.bm_h) || (dy2 < 0)) return;
1428 if ( dx1 < 0 ) { sx = -dx1; dx1 = 0; }
1429 if ( dy1 < 0 ) { sy = -dy1; dy1 = 0; }
1430 if ( dx2 >= grd_curcanv->cv_bitmap.bm_w ) { dx2 = grd_curcanv->cv_bitmap.bm_w-1; }
1431 if ( dy2 >= grd_curcanv->cv_bitmap.bm_h ) { dy2 = grd_curcanv->cv_bitmap.bm_h-1; }
1433 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
1435 gr_bm_ubitblt(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1439 //-NOT-used // From linear to SVGA
1440 //-NOT-used void gr_bm_ubitblt02_2x(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1442 //-NOT-used unsigned char * sbits;
1444 //-NOT-used unsigned int offset, EndingOffset, VideoLocation;
1446 //-NOT-used int sbpr, dbpr, y1, page, BytesToMove;
1448 //-NOT-used sbpr = src->bm_rowsize;
1450 //-NOT-used dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1452 //-NOT-used VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1454 //-NOT-used sbits = src->bm_data + ( sbpr*sy ) + sx;
1456 //-NOT-used for (y1=0; y1 < h; y1++ ) {
1458 //-NOT-used page = VideoLocation >> 16;
1459 //-NOT-used offset = VideoLocation & 0xFFFF;
1461 //-NOT-used gr_vesa_setpage( page );
1463 //-NOT-used EndingOffset = offset+w-1;
1465 //-NOT-used if ( EndingOffset <= 0xFFFF )
1467 //-NOT-used gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), w );
1469 //-NOT-used VideoLocation += dbpr;
1470 //-NOT-used sbits += sbpr;
1474 //-NOT-used BytesToMove = 0xFFFF-offset+1;
1476 //-NOT-used gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1479 //-NOT-used gr_vesa_setpage(page);
1481 //-NOT-used gr_linear_rep_movsd_2x( (void *)(sbits+BytesToMove/2), (void *)0xA0000, EndingOffset - 0xFFFF );
1483 //-NOT-used VideoLocation += dbpr;
1484 //-NOT-used sbits += sbpr;
1492 //-NOT-used // From Linear to Linear
1493 //-NOT-used void gr_bm_ubitblt00_2x(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1495 //-NOT-used unsigned char * dbits;
1496 //-NOT-used unsigned char * sbits;
1497 //-NOT-used //int src_bm_rowsize_2, dest_bm_rowsize_2;
1501 //-NOT-used sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1502 //-NOT-used dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1504 //-NOT-used // No interlacing, copy the whole buffer.
1505 //-NOT-used for (i=0; i < h; i++ ) {
1506 //-NOT-used gr_linear_rep_movsd_2x( sbits, dbits, w );
1508 //-NOT-used sbits += src->bm_rowsize;
1509 //-NOT-used dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1513 void gr_bm_ubitblt00_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1515 unsigned char * dbits;
1516 unsigned char * sbits;
1520 if (src->bm_flags & BM_FLAG_RLE_BIG)
1523 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1525 for (i=0; i<sy; i++ )
1526 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1528 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1530 // No interlacing, copy the whole buffer.
1531 for (i=0; i < h; i++ ) {
1532 gr_rle_expand_scanline( dbits, sbits, sx, sx+w-1 );
1533 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1534 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1536 sbits += (int)(src->bm_data[4+i+sy]);
1537 dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1541 void gr_bm_ubitblt00m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1543 unsigned char * dbits;
1544 unsigned char * sbits;
1548 if (src->bm_flags & BM_FLAG_RLE_BIG)
1551 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1552 for (i=0; i<sy; i++ )
1553 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1555 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1557 // No interlacing, copy the whole buffer.
1558 for (i=0; i < h; i++ ) {
1559 gr_rle_expand_scanline_masked( dbits, sbits, sx, sx+w-1 );
1560 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1561 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1563 sbits += (int)(src->bm_data[4+i+sy]);
1564 dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1570 extern void gr_rle_expand_scanline_generic( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1571 extern void gr_rle_expand_scanline_generic_masked( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1572 extern void gr_rle_expand_scanline_svga_masked( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1574 void gr_bm_ubitblt0x_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1578 unsigned char * sbits;
1580 //mprintf( 0, "SVGA RLE!\n" );
1583 if (src->bm_flags & BM_FLAG_RLE_BIG)
1586 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1587 for (i=0; i<sy; i++ )
1588 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1590 for (y1=0; y1 < h; y1++ ) {
1591 gr_rle_expand_scanline_generic( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1592 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1593 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1595 sbits += (int)src->bm_data[4+y1+sy];
1600 void gr_bm_ubitblt0xm_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1604 unsigned char * sbits;
1606 //mprintf( 0, "SVGA RLE!\n" );
1609 if (src->bm_flags & BM_FLAG_RLE_BIG)
1612 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1613 for (i=0; i<sy; i++ )
1614 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1616 for (y1=0; y1 < h; y1++ ) {
1617 gr_rle_expand_scanline_generic_masked( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1618 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1619 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1621 sbits += (int)src->bm_data[4+y1+sy];
1627 void gr_bm_ubitblt02m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1631 unsigned char * sbits;
1633 //mprintf( 0, "SVGA RLE!\n" );
1636 if (src->bm_flags & BM_FLAG_RLE_BIG)
1639 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1640 for (i=0; i<sy; i++ )
1641 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1643 for (y1=0; y1 < h; y1++ ) {
1644 gr_rle_expand_scanline_svga_masked( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1645 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1646 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1648 sbits += (int)src->bm_data[4+y1+sy];
1653 void gr_bm_ubitblt(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1655 register int x1, y1;
1657 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_LINEAR ))
1659 if ( src->bm_flags & BM_FLAG_RLE )
1660 gr_bm_ubitblt00_rle( w, h, dx, dy, sx, sy, src, dest );
1662 gr_bm_ubitblt00( w, h, dx, dy, sx, sy, src, dest );
1667 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_OGL ))
1669 ogl_ubitblt(w, h, dx, dy, sx, sy, src, dest);
1672 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_LINEAR ))
1674 ogl_ubitblt_tolinear(w, h, dx, dy, sx, sy, src, dest);
1677 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_OGL ))
1679 ogl_ubitblt_copy(w, h, dx, dy, sx, sy, src, dest);
1685 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_DIRECTX ))
1687 Assert ((int)dest->bm_data == BM_D3D_RENDER || (int)dest->bm_data == BM_D3D_DISPLAY);
1688 Win32_BlitLinearToDirectX_bm (src, sx, sy, w, h, dx, dy, 0);
1691 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_LINEAR ))
1695 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_DIRECTX ))
1701 if ( (src->bm_flags & BM_FLAG_RLE ) && (src->bm_type == BM_LINEAR) ) {
1702 gr_bm_ubitblt0x_rle(w, h, dx, dy, sx, sy, src, dest );
1707 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_SVGA ))
1709 gr_bm_ubitblt02( w, h, dx, dy, sx, sy, src, dest );
1713 if ( (src->bm_type == BM_SVGA) && (dest->bm_type == BM_LINEAR ))
1715 gr_bm_ubitblt20( w, h, dx, dy, sx, sy, src, dest );
1719 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_MODEX ))
1721 gr_bm_ubitblt01( w, h, dx+XOFFSET, dy+YOFFSET, sx, sy, src, dest );
1726 #if defined(POLY_ACC)
1727 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_LINEAR15 ))
1729 ubyte *s = src->bm_data + sy * src->bm_rowsize + sx;
1730 ushort *t = (ushort *)(dest->bm_data + dy * dest->bm_rowsize + dx * PA_BPP);
1735 for(x = 0; x < w; x++)
1736 t[x] = pa_clut[s[x]];
1737 s += src->bm_rowsize;
1738 t += dest->bm_rowsize / PA_BPP;
1743 if ( (src->bm_type == BM_LINEAR15) && (dest->bm_type == BM_LINEAR15 ))
1745 pa_blit(dest, dx, dy, src, sx, sy, w, h);
1750 for (y1=0; y1 < h; y1++ ) {
1751 for (x1=0; x1 < w; x1++ ) {
1752 gr_bm_pixel( dest, dx+x1, dy+y1, gr_gpixel(src,sx+x1,sy+y1) );
1757 void gr_bm_bitblt(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1759 int dx1=dx, dx2=dx+dest->bm_w-1;
1760 int dy1=dy, dy2=dy+dest->bm_h-1;
1762 int sx1=sx, sx2=sx+src->bm_w-1;
1763 int sy1=sy, sy2=sy+src->bm_h-1;
1765 if ((dx1 >= dest->bm_w ) || (dx2 < 0)) return;
1766 if ((dy1 >= dest->bm_h ) || (dy2 < 0)) return;
1767 if ( dx1 < 0 ) { sx1 += -dx1; dx1 = 0; }
1768 if ( dy1 < 0 ) { sy1 += -dy1; dy1 = 0; }
1769 if ( dx2 >= dest->bm_w ) { dx2 = dest->bm_w-1; }
1770 if ( dy2 >= dest->bm_h ) { dy2 = dest->bm_h-1; }
1772 if ((sx1 >= src->bm_w ) || (sx2 < 0)) return;
1773 if ((sy1 >= src->bm_h ) || (sy2 < 0)) return;
1774 if ( sx1 < 0 ) { dx1 += -sx1; sx1 = 0; }
1775 if ( sy1 < 0 ) { dy1 += -sy1; sy1 = 0; }
1776 if ( sx2 >= src->bm_w ) { sx2 = src->bm_w-1; }
1777 if ( sy2 >= src->bm_h ) { sy2 = src->bm_h-1; }
1779 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
1780 if ( dx2-dx1+1 < w )
1782 if ( dy2-dy1+1 < h )
1784 if ( sx2-sx1+1 < w )
1786 if ( sy2-sy1+1 < h )
1789 gr_bm_ubitblt(w,h, dx1, dy1, sx1, sy1, src, dest );
1792 void gr_ubitmap( int x, int y, grs_bitmap *bm )
1796 source = bm->bm_type;
1799 if (source==BM_LINEAR) {
1803 if ( bm->bm_flags & BM_FLAG_RLE )
1804 gr_bm_ubitblt00_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1806 gr_ubitmap00( x, y, bm );
1810 ogl_ubitmapm(x,y,bm);
1815 Assert ((int)grd_curcanv->cv_bitmap.bm_data == BM_D3D_RENDER || (int)grd_curcanv->cv_bitmap.bm_data == BM_D3D_DISPLAY);
1816 Win32_BlitLinearToDirectX_bm(bm, 0, 0, bm->bm_w, bm->bm_h, x, y, 0);
1821 if ( bm->bm_flags & BM_FLAG_RLE )
1822 gr_bm_ubitblt0x_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1824 gr_vesa_bitmap( bm, &grd_curcanv->cv_bitmap, x, y );
1827 gr_bm_ubitblt01(bm->bm_w, bm->bm_h, x+XOFFSET, y+YOFFSET, 0, 0, bm, &grd_curcanv->cv_bitmap);
1830 #if defined(POLY_ACC)
1832 if ( bm->bm_flags & BM_FLAG_RLE )
1833 gr_bm_ubitblt05_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1835 gr_ubitmap05( x, y, bm);
1840 gr_ubitmap012( x, y, bm );
1844 gr_ubitmapGENERIC(x, y, bm);
1849 void gr_ubitmapm( int x, int y, grs_bitmap *bm )
1853 source = bm->bm_type;
1856 Assert(x+bm->bm_w <= grd_curcanv->cv_w);
1857 Assert(y+bm->bm_h <= grd_curcanv->cv_h);
1860 _3dfx_Blit( x, y, bm );
1861 if ( _3dfx_skip_ddraw )
1865 if (source==BM_LINEAR) {
1869 if ( bm->bm_flags & BM_FLAG_RLE )
1870 gr_bm_ubitblt00m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1872 gr_ubitmap00m( x, y, bm );
1876 if (bm->bm_flags & BM_FLAG_RLE)
1877 gr_bm_ubitblt02m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1878 //gr_bm_ubitblt0xm_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1880 gr_bm_ubitblt02m(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1881 //gr_ubitmapGENERICm(x, y, bm);
1884 gr_bm_ubitblt01m(bm->bm_w, bm->bm_h, x+XOFFSET, y+YOFFSET, 0, 0, bm, &grd_curcanv->cv_bitmap);
1887 #if defined(POLY_ACC)
1889 if ( bm->bm_flags & BM_FLAG_RLE )
1890 gr_bm_ubitblt05m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1892 gr_ubitmap05m( x, y, bm );
1897 gr_ubitmap012m( x, y, bm );
1901 gr_ubitmapGENERICm(x, y, bm);
1906 void gr_bitmapm( int x, int y, grs_bitmap *bm )
1908 int dx1=x, dx2=x+bm->bm_w-1;
1909 int dy1=y, dy2=y+bm->bm_h-1;
1912 if ((dx1 >= grd_curcanv->cv_bitmap.bm_w ) || (dx2 < 0)) return;
1913 if ((dy1 >= grd_curcanv->cv_bitmap.bm_h) || (dy2 < 0)) return;
1914 if ( dx1 < 0 ) { sx = -dx1; dx1 = 0; }
1915 if ( dy1 < 0 ) { sy = -dy1; dy1 = 0; }
1916 if ( dx2 >= grd_curcanv->cv_bitmap.bm_w ) { dx2 = grd_curcanv->cv_bitmap.bm_w-1; }
1917 if ( dy2 >= grd_curcanv->cv_bitmap.bm_h ) { dy2 = grd_curcanv->cv_bitmap.bm_h-1; }
1919 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
1921 if ( (bm->bm_type == BM_LINEAR) && (grd_curcanv->cv_bitmap.bm_type == BM_LINEAR ))
1923 if ( bm->bm_flags & BM_FLAG_RLE )
1924 gr_bm_ubitblt00m_rle(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1926 gr_bm_ubitblt00m(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1930 else if ( (bm->bm_type == BM_LINEAR) && (grd_curcanv->cv_bitmap.bm_type == BM_SVGA ))
1932 gr_bm_ubitblt02m(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1937 gr_bm_ubitbltm(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1941 void gr_bm_ubitbltm(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1943 register int x1, y1;
1947 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_OGL ))
1949 ogl_ubitblt(w, h, dx, dy, sx, sy, src, dest);
1952 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_LINEAR ))
1954 ogl_ubitblt_tolinear(w, h, dx, dy, sx, sy, src, dest);
1957 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_OGL ))
1959 ogl_ubitblt_copy(w, h, dx, dy, sx, sy, src, dest);
1964 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_DIRECTX ))
1966 Assert ((int)dest->bm_data == BM_D3D_RENDER || (int)dest->bm_data == BM_D3D_DISPLAY);
1967 Win32_BlitLinearToDirectX_bm (src, sx, sy, w, h, dx, dy, 1);
1970 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_DIRECTX ))
1972 Assert ((int)src->bm_data == BM_D3D_RENDER || (int)src->bm_data == BM_D3D_DISPLAY);
1973 //Win32_BlitDirectXToDirectX (w, h, dx, dy, sx, sy, src->bm_data, dest->bm_data, 0);
1977 #if defined(POLY_ACC)
1978 if(src->bm_type == BM_LINEAR && dest->bm_type == BM_LINEAR15)
1986 s = (ubyte *)(src->bm_data + src->bm_rowsize * sy + sx);
1987 smod = src->bm_rowsize - w;
1988 d = (ushort *)(dest->bm_data + dest->bm_rowsize * dy + dx * PA_BPP);
1989 dmod = dest->bm_rowsize / PA_BPP - w;
1991 for (x1=w; x1--; ) {
1992 if ((u = *s) != TRANSPARENCY_COLOR)
2002 if(src->bm_type == BM_LINEAR15)
2004 Assert(src->bm_type == dest->bm_type); // I don't support 15 to 8 yet.
2005 pa_blit_transparent(dest, dx, dy, src, sx, sy, w, h);
2010 for (y1=0; y1 < h; y1++ ) {
2011 for (x1=0; x1 < w; x1++ ) {
2012 if ((c=gr_gpixel(src,sx+x1,sy+y1))!=TRANSPARENCY_COLOR)
2013 gr_bm_pixel( dest, dx+x1, dy+y1,c );
2019 // rescalling bitmaps, 10/14/99 Jan Bobrowski jb@wizard.ae.krakow.pl
2021 inline void scale_line(byte *in, byte *out, int ilen, int olen)
2023 int a = olen/ilen, b = olen%ilen;
2025 byte *end = out + olen;
2041 void gr_bitmap_scale_to(grs_bitmap *src, grs_bitmap *dst)
2043 byte *s = src->bm_data;
2044 byte *d = dst->bm_data;
2046 int a = dst->bm_h/h, b = dst->bm_h%h;
2049 for(y=0; y<h; y++) {
2058 scale_line(s, d, src->bm_w, dst->bm_w);
2059 d += dst->bm_rowsize;
2061 s += src->bm_rowsize;
2065 void show_fullscr(grs_bitmap *bm)
2067 grs_bitmap * const scr = &grd_curcanv->cv_bitmap;
2070 if(bm->bm_type == BM_LINEAR && scr->bm_type == BM_OGL) {
2071 ogl_ubitblt_i(scr->bm_w,scr->bm_h,0,0,bm->bm_w,bm->bm_h,0,0,bm,scr);//use opengl to scale, faster and saves ram. -MPM
2075 if(scr->bm_type != BM_LINEAR) {
2076 grs_bitmap *tmp = gr_create_bitmap(scr->bm_w, scr->bm_h);
2077 gr_bitmap_scale_to(bm, tmp);
2078 gr_bitmap(0, 0, tmp);
2079 gr_free_bitmap(tmp);
2082 gr_bitmap_scale_to(bm, scr);