1 /* $Id: bitblt.c,v 1.7 2002-09-04 22:01:07 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, 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]);
472 static void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize );
474 #if !defined(NO_ASM) && defined(__WATCOMC__)
476 #pragma aux modex_copy_column parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = \
485 #elif !defined(NO_ASM) && defined(__GNUC__)
487 static inline void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize ) {
488 /*#pragma aux modex_copy_column parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = */
489 __asm__ __volatile__ (
491 "movb (%%esi), %%al;"
493 "movb %%al, (%%edi);"
497 : : "S" (src), "D" (dest), "c" (num_pixels), "b" (src_rowsize), "d" (dest_rowsize)
498 : "%eax", "%ecx", "%esi", "%edi");
503 static void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize )
507 num_pixels = num_pixels;
508 src_rowsize = src_rowsize;
509 dest_rowsize = dest_rowsize;
515 static void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize );
517 #if !defined(NO_ASM) && defined(__WATCOMC__)
519 #pragma aux modex_copy_column_m parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = \
531 #elif !defined(NO_ASM) && defined(__GNUC__)
533 static inline void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize ) {
534 /* #pragma aux modex_copy_column_m parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = */
536 __asm__ __volatile__ (
538 "movb (%%esi), %%al;"
542 "movb %%al, (%%edi);"
547 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
548 : "1" (src), "2" (dest), "0" (num_pixels), "b" (src_rowsize), "d" (dest_rowsize)
554 static void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize )
558 num_pixels = num_pixels;
559 src_rowsize = src_rowsize;
560 dest_rowsize = dest_rowsize;
566 void gr_ubitmap00( int x, int y, grs_bitmap *bm )
571 unsigned char * dest;
574 dest_rowsize=grd_curcanv->cv_bitmap.bm_rowsize << gr_bitblt_dest_step_shift;
575 dest = &(grd_curcanv->cv_bitmap.bm_data[ dest_rowsize*y+x ]);
579 for (y1=0; y1 < bm->bm_h; y1++ ) {
580 if (gr_bitblt_double)
581 gr_linear_rep_movsd_2x( src, dest, bm->bm_w );
583 gr_linear_movsd( src, dest, bm->bm_w );
584 src += bm->bm_rowsize;
585 dest+= (int)(dest_rowsize);
589 void gr_ubitmap00m( int x, int y, grs_bitmap *bm )
594 unsigned char * dest;
597 dest_rowsize=grd_curcanv->cv_bitmap.bm_rowsize << gr_bitblt_dest_step_shift;
598 dest = &(grd_curcanv->cv_bitmap.bm_data[ dest_rowsize*y+x ]);
602 if (gr_bitblt_fade_table==NULL) {
603 for (y1=0; y1 < bm->bm_h; y1++ ) {
604 gr_linear_rep_movsdm( src, dest, bm->bm_w );
605 src += bm->bm_rowsize;
606 dest+= (int)(dest_rowsize);
609 for (y1=0; y1 < bm->bm_h; y1++ ) {
610 gr_linear_rep_movsdm_faded( src, dest, bm->bm_w, gr_bitblt_fade_table[y1+y] );
611 src += bm->bm_rowsize;
612 dest+= (int)(dest_rowsize);
635 static void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels );
637 #if !defined(NO_ASM) && defined(__WATCOMC__)
639 #pragma aux modex_copy_scanline parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = \
646 " mov al, [esi+8] " \
647 " mov ah, [esi+12] " \
650 " mov ah, [esi+4] " \
655 " jne next4pixels " \
668 #elif !defined (NO_ASM) && defined(__GNUC__)
670 static inline void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels ) {
671 /* #pragma aux modex_copy_scanline parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] */
673 __asm__ __volatile__ (
674 " movl %%ecx, %%ebx;"
680 " movb 8(%%esi), %%al;"
681 " movb 12(%%esi), %%ah;"
683 " movb (%%esi), %%al;"
684 " movb 4(%%esi), %%ah;"
685 " movl %%eax, (%%edi);"
694 " movb (%%esi), %%al;"
696 " movb %%al, (%%edi);"
701 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
702 : "1" (src), "2" (dest), "0" (npixels)
703 : "%eax", "%ebx", "%edx" );
708 static void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels )
718 static void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels );
720 #if !defined(NO_ASM) && defined(__WATCOMC__)
722 #pragma aux modex_copy_scanline_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = \
729 " mov al, [esi+4] " \
730 " mov ah, [esi+6] " \
733 " mov ah, [esi+2] " \
738 " jne next4pixels " \
751 #elif !defined(NO_ASM) && defined(__GNUC__)
753 static inline void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels ) {
754 /* #pragma aux modex_copy_scanline_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = */
756 __asm__ __volatile__ (
757 " movl %%ecx, %%ebx;"
763 " movb 4(%%esi), %%al;"
764 " movb 6(%%esi), %%ah;"
766 " movb (%%esi), %%al;"
767 " movb 2(%%esi), %%ah;"
768 " movl %%eax, (%%edi);"
777 " movb (%%esi),%%al;"
779 " movb %%al, (%%edi);"
784 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
785 : "1" (src), "2" (dest), "0" (npixels)
786 : "%eax", "%ebx", "%edx" );
791 static void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels )
804 // From Linear to ModeX
805 void gr_bm_ubitblt01(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
815 sstep = src->bm_rowsize;
816 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
818 if (!gr_bitblt_double) {
819 for (plane=0; plane<4; plane++ ) {
820 gr_modex_setplane( (plane+dx)&3 );
821 sbits = src->bm_data + (src->bm_rowsize * sy) + sx + plane;
822 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + ((plane+dx)/4) ];
824 if ( (w&3) > plane ) w1++;
825 for (y=dy; y < dy+h; y++ ) {
826 modex_copy_scanline( sbits, dbits, w1 );
832 for (plane=0; plane<4; plane++ ) {
833 gr_modex_setplane( (plane+dx)&3 );
834 sbits = src->bm_data + (src->bm_rowsize * sy) + sx + plane/2;
835 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + ((plane+dx)/4) ];
837 if ( (w&3) > plane ) w1++;
838 for (y=dy; y < dy+h; y++ ) {
839 modex_copy_scanline_2x( sbits, dbits, w1 );
848 // From Linear to ModeX masked
849 void gr_bm_ubitblt01m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
860 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
861 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + dx/4];
863 for (x=dx; x < dx+w; x++ ) {
864 gr_modex_setplane( x&3 );
868 //for (y=0; y < h; y++ ) {
869 // *dbits1 = *sbits1;
870 // sbits1 += src_bm_rowsize;
871 // dbits1 += dest_bm_rowsize;
873 modex_copy_column_m(sbits, dbits, h, src->bm_rowsize, dest->bm_rowsize << gr_bitblt_dest_step_shift );
884 void gr_ubitmap012( int x, int y, grs_bitmap *bm )
891 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
892 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
893 gr_setcolor( *src++ );
899 void gr_ubitmap012m( int x, int y, grs_bitmap *bm )
906 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
907 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
908 if ( *src != TRANSPARENCY_COLOR ) {
917 #if defined(POLY_ACC)
918 void gr_ubitmap05( int x, int y, grs_bitmap *bm )
927 dst = (short *)(DATA + y * ROWSIZE + x * PA_BPP);
928 mod = ROWSIZE / 2 - bm->bm_w;
930 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
931 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
932 *dst++ = pa_clut[*src++];
938 void gr_ubitmap05m( int x, int y, grs_bitmap *bm )
947 dst = (short *)(DATA + y * ROWSIZE + x * PA_BPP);
948 mod = ROWSIZE / 2 - bm->bm_w;
950 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
951 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
952 if ( *src != TRANSPARENCY_COLOR ) {
953 *dst = pa_clut[*src];
962 void gr_bm_ubitblt05_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
964 unsigned short * dbits;
965 unsigned char * sbits, scanline[640];
966 int i, data_offset, j, nextrow;
969 nextrow=dest->bm_rowsize/PA_BPP;
972 if (src->bm_flags & BM_FLAG_RLE_BIG)
975 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
976 for (i=0; i<sy; i++ )
977 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
979 dbits = (unsigned short *)(dest->bm_data + (dest->bm_rowsize * dy) + dx*PA_BPP);
981 // No interlacing, copy the whole buffer.
982 for (i=0; i < h; i++ ) {
983 gr_rle_expand_scanline( scanline, sbits, sx, sx+w-1 );
984 for(j = 0; j != w; ++j)
985 dbits[j] = pa_clut[scanline[j]];
986 if ( src->bm_flags & BM_FLAG_RLE_BIG )
987 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
989 sbits += (int)(src->bm_data[4+i+sy]);
994 void gr_bm_ubitblt05m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
996 unsigned short * dbits;
997 unsigned char * sbits, scanline[640];
998 int i, data_offset, j, nextrow;
1001 nextrow=dest->bm_rowsize/PA_BPP;
1003 if (src->bm_flags & BM_FLAG_RLE_BIG)
1006 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1007 for (i=0; i<sy; i++ )
1008 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1010 dbits = (unsigned short *)(dest->bm_data + (dest->bm_rowsize * dy) + dx*PA_BPP);
1012 // No interlacing, copy the whole buffer.
1013 for (i=0; i < h; i++ ) {
1014 gr_rle_expand_scanline( scanline, sbits, sx, sx+w-1 );
1015 for(j = 0; j != w; ++j)
1016 if(scanline[j] != TRANSPARENCY_COLOR)
1017 dbits[j] = pa_clut[scanline[j]];
1018 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1019 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1021 sbits += (int)(src->bm_data[4+i+sy]);
1027 void gr_ubitmapGENERIC(int x, int y, grs_bitmap * bm)
1029 register int x1, y1;
1031 for (y1=0; y1 < bm->bm_h; y1++ ) {
1032 for (x1=0; x1 < bm->bm_w; x1++ ) {
1033 gr_setcolor( gr_gpixel(bm,x1,y1) );
1034 gr_upixel( x+x1, y+y1 );
1039 void gr_ubitmapGENERICm(int x, int y, grs_bitmap * bm)
1041 register int x1, y1;
1044 for (y1=0; y1 < bm->bm_h; y1++ ) {
1045 for (x1=0; x1 < bm->bm_w; x1++ ) {
1046 c = gr_gpixel(bm,x1,y1);
1047 if ( c != TRANSPARENCY_COLOR ) {
1049 gr_upixel( x+x1, y+y1 );
1057 // From linear to SVGA
1058 void gr_bm_ubitblt02(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1060 unsigned char * sbits;
1062 unsigned int offset, EndingOffset, VideoLocation;
1064 int sbpr, dbpr, y1, page, BytesToMove;
1066 sbpr = src->bm_rowsize;
1068 dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1070 VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1072 sbits = src->bm_data + ( sbpr*sy ) + sx;
1074 for (y1=0; y1 < h; y1++ ) {
1076 page = VideoLocation >> 16;
1077 offset = VideoLocation & 0xFFFF;
1079 gr_vesa_setpage( page );
1081 EndingOffset = offset+w-1;
1083 if ( EndingOffset <= 0xFFFF )
1085 if ( gr_bitblt_double )
1086 gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), w );
1088 gr_linear_movsd( (void *)sbits, (void *)(offset+0xA0000), w );
1090 VideoLocation += dbpr;
1095 BytesToMove = 0xFFFF-offset+1;
1097 if ( gr_bitblt_double )
1098 gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1100 gr_linear_movsd( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1103 gr_vesa_setpage(page);
1105 if ( gr_bitblt_double )
1106 gr_linear_rep_movsd_2x( (void *)(sbits+BytesToMove/2), (void *)0xA0000, EndingOffset - 0xFFFF );
1108 gr_linear_movsd( (void *)(sbits+BytesToMove), (void *)0xA0000, EndingOffset - 0xFFFF );
1110 VideoLocation += dbpr;
1119 void gr_bm_ubitblt02m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1121 unsigned char * sbits;
1123 unsigned int offset, EndingOffset, VideoLocation;
1125 int sbpr, dbpr, y1, page, BytesToMove;
1127 sbpr = src->bm_rowsize;
1129 dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1131 VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1133 sbits = src->bm_data + ( sbpr*sy ) + sx;
1135 for (y1=0; y1 < h; y1++ ) {
1137 page = VideoLocation >> 16;
1138 offset = VideoLocation & 0xFFFF;
1140 gr_vesa_setpage( page );
1142 EndingOffset = offset+w-1;
1144 if ( EndingOffset <= 0xFFFF )
1146 gr_linear_rep_movsdm( (void *)sbits, (void *)(offset+0xA0000), w );
1148 VideoLocation += dbpr;
1153 BytesToMove = 0xFFFF-offset+1;
1155 gr_linear_rep_movsdm( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1158 gr_vesa_setpage(page);
1160 gr_linear_rep_movsdm( (void *)(sbits+BytesToMove), (void *)0xA0000, EndingOffset - 0xFFFF );
1162 VideoLocation += dbpr;
1169 // From SVGA to linear
1170 void gr_bm_ubitblt20(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1172 unsigned char * dbits;
1174 unsigned int offset, offset1, offset2;
1176 int sbpr, dbpr, y1, page;
1178 dbpr = dest->bm_rowsize;
1180 sbpr = src->bm_rowsize;
1182 for (y1=0; y1 < h; y1++ ) {
1184 offset2 = (unsigned int)src->bm_data + (sbpr * (y1+sy)) + sx;
1185 dbits = dest->bm_data + (dbpr * (y1+dy)) + dx;
1187 page = offset2 >> 16;
1188 offset = offset2 & 0xFFFF;
1189 offset1 = offset+w-1;
1190 gr_vesa_setpage( page );
1192 if ( offset1 > 0xFFFF ) {
1193 // Overlaps two pages
1194 while( offset <= 0xFFFF )
1195 *dbits++ = gr_video_memory[offset++];
1196 offset1 -= (0xFFFF+1);
1199 gr_vesa_setpage(page);
1201 while( offset <= offset1 )
1202 *dbits++ = gr_video_memory[offset++];
1209 //@extern int Interlacing_on;
1211 // From Linear to Linear
1212 void gr_bm_ubitblt00(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1214 unsigned char * dbits;
1215 unsigned char * sbits;
1216 //int src_bm_rowsize_2, dest_bm_rowsize_2;
1221 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1222 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1224 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1226 // No interlacing, copy the whole buffer.
1227 for (i=0; i < h; i++ ) {
1228 if (gr_bitblt_double)
1229 gr_linear_rep_movsd_2x( sbits, dbits, w );
1231 gr_linear_movsd( sbits, dbits, w );
1232 sbits += src->bm_rowsize;
1236 // From Linear to Linear Masked
1237 void gr_bm_ubitblt00m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1239 unsigned char * dbits;
1240 unsigned char * sbits;
1241 //int src_bm_rowsize_2, dest_bm_rowsize_2;
1245 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1246 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1248 // No interlacing, copy the whole buffer.
1250 if (gr_bitblt_fade_table==NULL) {
1251 for (i=0; i < h; i++ ) {
1252 gr_linear_rep_movsdm( sbits, dbits, w );
1253 sbits += src->bm_rowsize;
1254 dbits += dest->bm_rowsize;
1257 for (i=0; i < h; i++ ) {
1258 gr_linear_rep_movsdm_faded( sbits, dbits, w, gr_bitblt_fade_table[dy+i] );
1259 sbits += src->bm_rowsize;
1260 dbits += dest->bm_rowsize;
1266 extern void gr_lbitblt( grs_bitmap * source, grs_bitmap * dest, int height, int width );
1268 #if 1 //def MACINTOSH
1270 // width == number of destination pixels
1272 void gr_linear_movsd_double(ubyte *src, ubyte *dest, int width)
1274 double *d = (double *)dest;
1275 uint *s = (uint *)src;
1280 num_pixels = width / 2;
1281 if ( (num_pixels & 0x3) || (((int)src & 0x7) != ((int)dest & 0x7)) ) {
1282 // not a multiple of 4? do single pixel at a time
1283 for (i=0; i<num_pixels; i++) {
1290 for (i = 0; i < num_pixels / 4; i++) {
1293 temp = ((temp >> 8) & 0x00FFFF00) | (temp & 0xFF0000FF); // 0xABCDEFGH -> 0xABABCDEF
1294 temp = ((temp >> 8) & 0x000000FF) | (temp & 0xFFFFFF00); // 0xABABCDEF -> 0xABABCDCD
1295 doubletemp[0] = temp;
1297 work = ((work << 8) & 0x00FFFF00) | (work & 0xFF0000FF); // 0xABCDEFGH -> 0xABEFGHGH
1298 work = ((work << 8) & 0xFF000000) | (work & 0x00FFFFFF); // 0xABEFGHGH -> 0xEFEFGHGH
1299 doubletemp[1] = work;
1301 *d = *(double *) &(doubletemp[0]);
1306 //extern void BlitLargeAlign(ubyte *draw_buffer, int dstRowBytes, ubyte *dstPtr, int w, int h, int modulus);
1309 asm void BlitLargeAlign(ubyte *rSrcPtr, int rDblDStrd, ubyte *rDst1Ptr, int rWidth, int rHeight, int rModulus)
1311 stw r31,-4(SP) // store non-volatile reg in red zone
1312 addi r5,r5,-8 // subtract 8 from dst
1313 stw r30,-8(SP) // store non-volatile reg in red zone
1315 la r30,-16(SP) // calculate copy of local 8-byte variable
1317 // rSStrd = modulus - w
1318 add r31,r5,r4 // dst2 = dstRowBytes + dst1
1319 sub r4,r4,r6 // r4 = dstRowBytes - w
1320 addi r7,r7,-1 // subtract 1 from height count
1321 srawi r6,r6,2 // rWidth = w >> 2
1322 addi r3,r3,-4 // subtract 4 from src
1323 addi r6,r6,-1 // subtract 1 from width count
1324 add r4,r4,r4 // rDblDStrd = 2 * r4
1326 BlitLargeAlignY: // y count is in r7
1327 lwzu r10,4(r3) // load a long into r10
1328 mr r0,r10 // put a copy in r0
1330 // these are simplified -- can't use 'em inslwi r0,r10,16,8
1331 // these are simplified -- can't use 'em insrwi r11,r10,16,8
1332 rlwimi r0,r10,24,8,31
1333 rlwimi r11,r10,8,8,23
1334 rlwimi r0,r10,16,24,31
1336 rlwimi r11,r10,16,0,7
1338 mtctr r6 // copy x count into the counter
1342 lwzu r10,4(r3) // load a long into r10
1344 mr r0,r10 // put a copy in r0
1346 // simplefied inslwi r0,r10,16,8
1347 // simplefied insrwi r11,r10,16,8
1348 rlwimi r0,r10,24,8,31
1349 rlwimi r11,r10,8,8,23
1350 rlwimi r0,r10,16,24,31
1352 rlwimi r11,r10,16,0,7
1356 bdnz BlitLargeAlignX // loop over all x
1359 addic. r7,r7,-1 // decrement the counter
1367 bne BlitLargeAlignY // loop for all y
1369 lwz r30,-8(SP) // restore non-volatile regs
1370 lwz r31,-4(SP) // restore non-volatile regs
1371 blr // return to caller
1374 void gr_bm_ubitblt_double(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap *src, grs_bitmap *dest)
1380 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1381 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1382 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1383 Assert( !((int)dbits & 0x7) ); // assert to check double word alignment
1384 BlitLargeAlign(sbits, dstep, dbits, src->bm_w, src->bm_h, src->bm_rowsize);
1388 // w and h are the doubled width and height
1390 void gr_bm_ubitblt_double_slow(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap *src, grs_bitmap *dest)
1396 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1397 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1398 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1400 for (i=0; i < h; i++ ) {
1402 gr_linear_movsd_double(sbits, dbits, w);
1405 sbits += src->bm_rowsize;
1412 // Clipped bitmap ...
1414 void gr_bitmap( int x, int y, grs_bitmap *bm )
1416 int dx1=x, dx2=x+bm->bm_w-1;
1417 int dy1=y, dy2=y+bm->bm_h-1;
1420 if ((dx1 >= grd_curcanv->cv_bitmap.bm_w ) || (dx2 < 0)) return;
1421 if ((dy1 >= grd_curcanv->cv_bitmap.bm_h) || (dy2 < 0)) return;
1422 if ( dx1 < 0 ) { sx = -dx1; dx1 = 0; }
1423 if ( dy1 < 0 ) { sy = -dy1; dy1 = 0; }
1424 if ( dx2 >= grd_curcanv->cv_bitmap.bm_w ) { dx2 = grd_curcanv->cv_bitmap.bm_w-1; }
1425 if ( dy2 >= grd_curcanv->cv_bitmap.bm_h ) { dy2 = grd_curcanv->cv_bitmap.bm_h-1; }
1427 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
1429 gr_bm_ubitblt(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1433 //-NOT-used // From linear to SVGA
1434 //-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)
1436 //-NOT-used unsigned char * sbits;
1438 //-NOT-used unsigned int offset, EndingOffset, VideoLocation;
1440 //-NOT-used int sbpr, dbpr, y1, page, BytesToMove;
1442 //-NOT-used sbpr = src->bm_rowsize;
1444 //-NOT-used dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1446 //-NOT-used VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1448 //-NOT-used sbits = src->bm_data + ( sbpr*sy ) + sx;
1450 //-NOT-used for (y1=0; y1 < h; y1++ ) {
1452 //-NOT-used page = VideoLocation >> 16;
1453 //-NOT-used offset = VideoLocation & 0xFFFF;
1455 //-NOT-used gr_vesa_setpage( page );
1457 //-NOT-used EndingOffset = offset+w-1;
1459 //-NOT-used if ( EndingOffset <= 0xFFFF )
1461 //-NOT-used gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), w );
1463 //-NOT-used VideoLocation += dbpr;
1464 //-NOT-used sbits += sbpr;
1468 //-NOT-used BytesToMove = 0xFFFF-offset+1;
1470 //-NOT-used gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1473 //-NOT-used gr_vesa_setpage(page);
1475 //-NOT-used gr_linear_rep_movsd_2x( (void *)(sbits+BytesToMove/2), (void *)0xA0000, EndingOffset - 0xFFFF );
1477 //-NOT-used VideoLocation += dbpr;
1478 //-NOT-used sbits += sbpr;
1486 //-NOT-used // From Linear to Linear
1487 //-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)
1489 //-NOT-used unsigned char * dbits;
1490 //-NOT-used unsigned char * sbits;
1491 //-NOT-used //int src_bm_rowsize_2, dest_bm_rowsize_2;
1495 //-NOT-used sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1496 //-NOT-used dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1498 //-NOT-used // No interlacing, copy the whole buffer.
1499 //-NOT-used for (i=0; i < h; i++ ) {
1500 //-NOT-used gr_linear_rep_movsd_2x( sbits, dbits, w );
1502 //-NOT-used sbits += src->bm_rowsize;
1503 //-NOT-used dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1507 void gr_bm_ubitblt00_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1509 unsigned char * dbits;
1510 unsigned char * sbits;
1514 if (src->bm_flags & BM_FLAG_RLE_BIG)
1517 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1519 for (i=0; i<sy; i++ )
1520 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1522 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1524 // No interlacing, copy the whole buffer.
1525 for (i=0; i < h; i++ ) {
1526 gr_rle_expand_scanline( dbits, sbits, sx, sx+w-1 );
1527 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1528 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1530 sbits += (int)(src->bm_data[4+i+sy]);
1531 dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1535 void gr_bm_ubitblt00m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1537 unsigned char * dbits;
1538 unsigned char * sbits;
1542 if (src->bm_flags & BM_FLAG_RLE_BIG)
1545 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1546 for (i=0; i<sy; i++ )
1547 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1549 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1551 // No interlacing, copy the whole buffer.
1552 for (i=0; i < h; i++ ) {
1553 gr_rle_expand_scanline_masked( dbits, sbits, sx, sx+w-1 );
1554 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1555 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1557 sbits += (int)(src->bm_data[4+i+sy]);
1558 dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1564 extern void gr_rle_expand_scanline_generic( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1565 extern void gr_rle_expand_scanline_generic_masked( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1566 extern void gr_rle_expand_scanline_svga_masked( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1568 void gr_bm_ubitblt0x_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1572 unsigned char * sbits;
1574 //mprintf( 0, "SVGA RLE!\n" );
1577 if (src->bm_flags & BM_FLAG_RLE_BIG)
1580 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1581 for (i=0; i<sy; i++ )
1582 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1584 for (y1=0; y1 < h; y1++ ) {
1585 gr_rle_expand_scanline_generic( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1586 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1587 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1589 sbits += (int)src->bm_data[4+y1+sy];
1594 void gr_bm_ubitblt0xm_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1598 unsigned char * sbits;
1600 //mprintf( 0, "SVGA RLE!\n" );
1603 if (src->bm_flags & BM_FLAG_RLE_BIG)
1606 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1607 for (i=0; i<sy; i++ )
1608 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1610 for (y1=0; y1 < h; y1++ ) {
1611 gr_rle_expand_scanline_generic_masked( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1612 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1613 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1615 sbits += (int)src->bm_data[4+y1+sy];
1621 void gr_bm_ubitblt02m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1625 unsigned char * sbits;
1627 //mprintf( 0, "SVGA RLE!\n" );
1630 if (src->bm_flags & BM_FLAG_RLE_BIG)
1633 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1634 for (i=0; i<sy; i++ )
1635 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1637 for (y1=0; y1 < h; y1++ ) {
1638 gr_rle_expand_scanline_svga_masked( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1639 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1640 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1642 sbits += (int)src->bm_data[4+y1+sy];
1647 void gr_bm_ubitblt(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1649 register int x1, y1;
1651 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_LINEAR ))
1653 if ( src->bm_flags & BM_FLAG_RLE )
1654 gr_bm_ubitblt00_rle( w, h, dx, dy, sx, sy, src, dest );
1656 gr_bm_ubitblt00( w, h, dx, dy, sx, sy, src, dest );
1661 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_OGL ))
1663 ogl_ubitblt(w, h, dx, dy, sx, sy, src, dest);
1666 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_LINEAR ))
1668 ogl_ubitblt_tolinear(w, h, dx, dy, sx, sy, src, dest);
1671 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_OGL ))
1673 ogl_ubitblt_copy(w, h, dx, dy, sx, sy, src, dest);
1679 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_DIRECTX ))
1681 Assert ((int)dest->bm_data == BM_D3D_RENDER || (int)dest->bm_data == BM_D3D_DISPLAY);
1682 Win32_BlitLinearToDirectX_bm (src, sx, sy, w, h, dx, dy, 0);
1685 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_LINEAR ))
1689 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_DIRECTX ))
1695 if ( (src->bm_flags & BM_FLAG_RLE ) && (src->bm_type == BM_LINEAR) ) {
1696 gr_bm_ubitblt0x_rle(w, h, dx, dy, sx, sy, src, dest );
1701 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_SVGA ))
1703 gr_bm_ubitblt02( w, h, dx, dy, sx, sy, src, dest );
1707 if ( (src->bm_type == BM_SVGA) && (dest->bm_type == BM_LINEAR ))
1709 gr_bm_ubitblt20( w, h, dx, dy, sx, sy, src, dest );
1713 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_MODEX ))
1715 gr_bm_ubitblt01( w, h, dx+XOFFSET, dy+YOFFSET, sx, sy, src, dest );
1720 #if defined(POLY_ACC)
1721 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_LINEAR15 ))
1723 ubyte *s = src->bm_data + sy * src->bm_rowsize + sx;
1724 ushort *t = (ushort *)(dest->bm_data + dy * dest->bm_rowsize + dx * PA_BPP);
1729 for(x = 0; x < w; x++)
1730 t[x] = pa_clut[s[x]];
1731 s += src->bm_rowsize;
1732 t += dest->bm_rowsize / PA_BPP;
1737 if ( (src->bm_type == BM_LINEAR15) && (dest->bm_type == BM_LINEAR15 ))
1739 pa_blit(dest, dx, dy, src, sx, sy, w, h);
1744 for (y1=0; y1 < h; y1++ ) {
1745 for (x1=0; x1 < w; x1++ ) {
1746 gr_bm_pixel( dest, dx+x1, dy+y1, gr_gpixel(src,sx+x1,sy+y1) );
1751 void gr_bm_bitblt(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1753 int dx1=dx, dx2=dx+dest->bm_w-1;
1754 int dy1=dy, dy2=dy+dest->bm_h-1;
1756 int sx1=sx, sx2=sx+src->bm_w-1;
1757 int sy1=sy, sy2=sy+src->bm_h-1;
1759 if ((dx1 >= dest->bm_w ) || (dx2 < 0)) return;
1760 if ((dy1 >= dest->bm_h ) || (dy2 < 0)) return;
1761 if ( dx1 < 0 ) { sx1 += -dx1; dx1 = 0; }
1762 if ( dy1 < 0 ) { sy1 += -dy1; dy1 = 0; }
1763 if ( dx2 >= dest->bm_w ) { dx2 = dest->bm_w-1; }
1764 if ( dy2 >= dest->bm_h ) { dy2 = dest->bm_h-1; }
1766 if ((sx1 >= src->bm_w ) || (sx2 < 0)) return;
1767 if ((sy1 >= src->bm_h ) || (sy2 < 0)) return;
1768 if ( sx1 < 0 ) { dx1 += -sx1; sx1 = 0; }
1769 if ( sy1 < 0 ) { dy1 += -sy1; sy1 = 0; }
1770 if ( sx2 >= src->bm_w ) { sx2 = src->bm_w-1; }
1771 if ( sy2 >= src->bm_h ) { sy2 = src->bm_h-1; }
1773 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
1774 if ( dx2-dx1+1 < w )
1776 if ( dy2-dy1+1 < h )
1778 if ( sx2-sx1+1 < w )
1780 if ( sy2-sy1+1 < h )
1783 gr_bm_ubitblt(w,h, dx1, dy1, sx1, sy1, src, dest );
1786 void gr_ubitmap( int x, int y, grs_bitmap *bm )
1790 source = bm->bm_type;
1793 if (source==BM_LINEAR) {
1797 if ( bm->bm_flags & BM_FLAG_RLE )
1798 gr_bm_ubitblt00_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1800 gr_ubitmap00( x, y, bm );
1804 ogl_ubitmapm(x,y,bm);
1809 Assert ((int)grd_curcanv->cv_bitmap.bm_data == BM_D3D_RENDER || (int)grd_curcanv->cv_bitmap.bm_data == BM_D3D_DISPLAY);
1810 Win32_BlitLinearToDirectX_bm(bm, 0, 0, bm->bm_w, bm->bm_h, x, y, 0);
1815 if ( bm->bm_flags & BM_FLAG_RLE )
1816 gr_bm_ubitblt0x_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1818 gr_vesa_bitmap( bm, &grd_curcanv->cv_bitmap, x, y );
1821 gr_bm_ubitblt01(bm->bm_w, bm->bm_h, x+XOFFSET, y+YOFFSET, 0, 0, bm, &grd_curcanv->cv_bitmap);
1824 #if defined(POLY_ACC)
1826 if ( bm->bm_flags & BM_FLAG_RLE )
1827 gr_bm_ubitblt05_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1829 gr_ubitmap05( x, y, bm);
1834 gr_ubitmap012( x, y, bm );
1838 gr_ubitmapGENERIC(x, y, bm);
1843 void gr_ubitmapm( int x, int y, grs_bitmap *bm )
1847 source = bm->bm_type;
1850 Assert(x+bm->bm_w <= grd_curcanv->cv_w);
1851 Assert(y+bm->bm_h <= grd_curcanv->cv_h);
1854 _3dfx_Blit( x, y, bm );
1855 if ( _3dfx_skip_ddraw )
1859 if (source==BM_LINEAR) {
1863 if ( bm->bm_flags & BM_FLAG_RLE )
1864 gr_bm_ubitblt00m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1866 gr_ubitmap00m( x, y, bm );
1870 if (bm->bm_flags & BM_FLAG_RLE)
1871 gr_bm_ubitblt02m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1872 //gr_bm_ubitblt0xm_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1874 gr_bm_ubitblt02m(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1875 //gr_ubitmapGENERICm(x, y, bm);
1878 gr_bm_ubitblt01m(bm->bm_w, bm->bm_h, x+XOFFSET, y+YOFFSET, 0, 0, bm, &grd_curcanv->cv_bitmap);
1881 #if defined(POLY_ACC)
1883 if ( bm->bm_flags & BM_FLAG_RLE )
1884 gr_bm_ubitblt05m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1886 gr_ubitmap05m( x, y, bm );
1891 gr_ubitmap012m( x, y, bm );
1895 gr_ubitmapGENERICm(x, y, bm);
1900 void gr_bitmapm( int x, int y, grs_bitmap *bm )
1902 int dx1=x, dx2=x+bm->bm_w-1;
1903 int dy1=y, dy2=y+bm->bm_h-1;
1906 if ((dx1 >= grd_curcanv->cv_bitmap.bm_w ) || (dx2 < 0)) return;
1907 if ((dy1 >= grd_curcanv->cv_bitmap.bm_h) || (dy2 < 0)) return;
1908 if ( dx1 < 0 ) { sx = -dx1; dx1 = 0; }
1909 if ( dy1 < 0 ) { sy = -dy1; dy1 = 0; }
1910 if ( dx2 >= grd_curcanv->cv_bitmap.bm_w ) { dx2 = grd_curcanv->cv_bitmap.bm_w-1; }
1911 if ( dy2 >= grd_curcanv->cv_bitmap.bm_h ) { dy2 = grd_curcanv->cv_bitmap.bm_h-1; }
1913 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
1915 if ( (bm->bm_type == BM_LINEAR) && (grd_curcanv->cv_bitmap.bm_type == BM_LINEAR ))
1917 if ( bm->bm_flags & BM_FLAG_RLE )
1918 gr_bm_ubitblt00m_rle(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1920 gr_bm_ubitblt00m(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1924 else if ( (bm->bm_type == BM_LINEAR) && (grd_curcanv->cv_bitmap.bm_type == BM_SVGA ))
1926 gr_bm_ubitblt02m(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1931 gr_bm_ubitbltm(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1935 void gr_bm_ubitbltm(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1937 register int x1, y1;
1941 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_OGL ))
1943 ogl_ubitblt(w, h, dx, dy, sx, sy, src, dest);
1946 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_LINEAR ))
1948 ogl_ubitblt_tolinear(w, h, dx, dy, sx, sy, src, dest);
1951 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_OGL ))
1953 ogl_ubitblt_copy(w, h, dx, dy, sx, sy, src, dest);
1958 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_DIRECTX ))
1960 Assert ((int)dest->bm_data == BM_D3D_RENDER || (int)dest->bm_data == BM_D3D_DISPLAY);
1961 Win32_BlitLinearToDirectX_bm (src, sx, sy, w, h, dx, dy, 1);
1964 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_DIRECTX ))
1966 Assert ((int)src->bm_data == BM_D3D_RENDER || (int)src->bm_data == BM_D3D_DISPLAY);
1967 //Win32_BlitDirectXToDirectX (w, h, dx, dy, sx, sy, src->bm_data, dest->bm_data, 0);
1971 #if defined(POLY_ACC)
1972 if(src->bm_type == BM_LINEAR && dest->bm_type == BM_LINEAR15)
1980 s = (ubyte *)(src->bm_data + src->bm_rowsize * sy + sx);
1981 smod = src->bm_rowsize - w;
1982 d = (ushort *)(dest->bm_data + dest->bm_rowsize * dy + dx * PA_BPP);
1983 dmod = dest->bm_rowsize / PA_BPP - w;
1985 for (x1=w; x1--; ) {
1986 if ((u = *s) != TRANSPARENCY_COLOR)
1996 if(src->bm_type == BM_LINEAR15)
1998 Assert(src->bm_type == dest->bm_type); // I don't support 15 to 8 yet.
1999 pa_blit_transparent(dest, dx, dy, src, sx, sy, w, h);
2004 for (y1=0; y1 < h; y1++ ) {
2005 for (x1=0; x1 < w; x1++ ) {
2006 if ((c=gr_gpixel(src,sx+x1,sy+y1))!=TRANSPARENCY_COLOR)
2007 gr_bm_pixel( dest, dx+x1, dy+y1,c );
2013 // rescalling bitmaps, 10/14/99 Jan Bobrowski jb@wizard.ae.krakow.pl
2015 inline void scale_line(byte *in, byte *out, int ilen, int olen)
2017 int a = olen/ilen, b = olen%ilen;
2019 byte *end = out + olen;
2035 void gr_bitmap_scale_to(grs_bitmap *src, grs_bitmap *dst)
2037 byte *s = src->bm_data;
2038 byte *d = dst->bm_data;
2040 int a = dst->bm_h/h, b = dst->bm_h%h;
2043 for(y=0; y<h; y++) {
2052 scale_line(s, d, src->bm_w, dst->bm_w);
2053 d += dst->bm_rowsize;
2055 s += src->bm_rowsize;
2059 void show_fullscr(grs_bitmap *bm)
2061 grs_bitmap * const scr = &grd_curcanv->cv_bitmap;
2064 if(bm->bm_type == BM_LINEAR && scr->bm_type == BM_OGL) {
2065 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
2069 if(scr->bm_type != BM_LINEAR) {
2070 grs_bitmap *tmp = gr_create_bitmap(scr->bm_w, scr->bm_h);
2071 gr_bitmap_scale_to(bm, tmp);
2072 gr_bitmap(0, 0, tmp);
2073 gr_free_bitmap(tmp);
2076 gr_bitmap_scale_to(bm, scr);