1 /* $Id: bitblt.c,v 1.12 2003-10-25 01:44:23 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 );
137 void gr_linear_movsd( ubyte * source, ubyte * dest, unsigned int nbytes);
138 // This code aligns edi so that the destination is aligned to a dword boundry before rep movsd
140 #if !defined(NO_ASM) && defined(__WATCOMC__)
142 #pragma aux gr_linear_movsd parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx] = \
160 #elif !defined(NO_ASM) && defined(__GNUC__)
162 inline void gr_linear_movsd(ubyte *src, ubyte *dest, unsigned int num_pixels) {
164 __asm__ __volatile__ (
166 " movl %%ecx, %%ebx;"
167 " movl %%edi, %%eax;"
175 " movl %%ebx, %%ecx;"
178 " movl %%ebx, %%ecx;"
181 : "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2])
182 : "0" (src), "1" (dest), "2" (num_pixels)
186 #elif !defined(NO_ASM) && defined(_MSC_VER)
188 __inline void gr_linear_movsd(ubyte *src, ubyte *dest, unsigned int num_pixels)
193 mov ecx, [num_pixels]
213 #else // NO_ASM or unknown compiler
218 #define test_byteblit 0
220 ubyte test_byteblit = 0;
223 void gr_linear_movsd(ubyte * src, ubyte * dest, unsigned int num_pixels )
230 // check to see if we are starting on an even byte boundry
231 // if not, move appropriate number of bytes to even
234 if ( (num_pixels < THRESHOLD) || (((int)src & 0x7) != ((int)dest & 0x7)) || test_byteblit ) {
235 for (i = 0; i < num_pixels; i++)
241 if ((r = (int)src & 0x7)) {
242 for (i = 0; i < 8 - r; i++)
251 for (i = 0; i < n; i++)
255 for (i = 0; i < r; i++)
259 #endif //#ifdef NO_ASM
262 static void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels );
264 #if !defined(NO_ASM) && defined(__WATCOMC__)
266 #pragma aux gr_linear_rep_movsdm parm [esi] [edi] [ecx] modify exact [ecx esi edi eax] = \
270 "cmp al, " TRANSPARENCY_COLOR_STR \
278 #elif !defined(NO_ASM) && defined(__GNUC__)
280 static inline void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels ) {
282 __asm__ __volatile__ (
284 " movb (%%esi), %%al;"
286 " cmpb $" TRANSPARENCY_COLOR_STR ", %%al;"
288 " movb %%al,(%%edi);"
293 : "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2])
294 : "0" (src), "1" (dest), "2" (num_pixels)
298 #elif !defined(NO_ASM) && defined(_MSC_VER)
300 __inline void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels )
306 mov ecx, [num_pixels]
309 cmp al, TRANSPARENCY_COLOR
321 static void gr_linear_rep_movsdm(ubyte * src, ubyte * dest, unsigned int num_pixels )
324 for (i=0; i<num_pixels; i++ ) {
325 if (*src != TRANSPARENCY_COLOR )
334 static void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value );
336 #if !defined(NO_ASM) && defined(__WATCOMC__)
338 #pragma aux gr_linear_rep_movsdm_faded parm [esi] [edi] [ecx] [ebx] modify exact [ecx esi edi eax ebx] = \
344 "cmp al, " TRANSPARENCY_COLOR_STR \
346 "mov al, gr_fade_table[eax]" \
353 #elif !defined(NO_ASM) && defined(__GNUC__)
355 /* #pragma aux gr_linear_rep_movsdm_faded parm [esi] [edi] [ecx] [ebx] modify exact [ecx esi edi eax ebx] */
356 static inline void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value ) {
358 __asm__ __volatile__ (
359 " xorl %%eax, %%eax;"
362 " movb (%%esi), %%al;"
364 " cmpb $" TRANSPARENCY_COLOR_STR ", %%al;"
367 " movb gr_fade_table(%%eax), %%al;"
369 " movb _gr_fade_table(%%eax), %%al;"
371 " movb %%al, (%%edi);"
376 : "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2]), "=b" (dummy[3])
377 : "0" (src), "1" (dest), "2" (num_pixels), "3" (fade_value)
381 #elif !defined(NO_ASM) && defined(_MSC_VER)
383 __inline void gr_linear_rep_movsdm_faded(void * src, void * dest, unsigned int num_pixels, ubyte fade_value )
388 mov ecx, [num_pixels]
389 movzx ebx, byte ptr [fade_value]
395 cmp al, TRANSPARENCY_COLOR
397 mov al, gr_fade_table[eax]
408 static void gr_linear_rep_movsdm_faded(ubyte * src, ubyte * dest, unsigned int num_pixels, ubyte fade_value )
414 fade_base = gr_fade_table + (fade_value * 256);
416 for (i=num_pixels; i != 0; i-- )
419 if (source != (ubyte)TRANSPARENCY_COLOR )
420 *dest = *(fade_base + source);
429 void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_dest_pixels);
431 #if !defined(NO_ASM) && defined(__WATCOMC__)
433 #pragma aux gr_linear_rep_movsd_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx] = \
453 #elif !defined(NO_ASM) && defined (__GNUC__)
455 inline void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_dest_pixels)
457 /* #pragma aux gr_linear_rep_movsd_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx] */
459 __asm__ __volatile__ (
462 "movb (%%esi), %%al;"
463 "movb %%al, (%%edi);"
469 "movb (%%esi), %%al;"
471 "movw %%ax, (%%edi);"
478 : "=S" (dummy[0]), "=D" (dummy[1]), "=c" (dummy[2])
479 : "0" (src), "1" (dest), "2" (num_dest_pixels)
483 #elif !defined(NO_ASM) && defined(_MSC_VER)
485 __inline void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_dest_pixels)
490 mov ecx, [num_dest_pixels]
514 void gr_linear_rep_movsd_2x(ubyte *src, ubyte *dest, unsigned int num_pixels)
516 double *d = (double *)dest;
517 uint *s = (uint *)src;
522 if (num_pixels & 0x3) {
523 // not a multiple of 4? do single pixel at a time
524 for (i=0; i<num_pixels; i++) {
531 for (i = 0; i < num_pixels / 4; i++) {
534 temp = ((temp >> 8) & 0x00FFFF00) | (temp & 0xFF0000FF); // 0xABCDEFGH -> 0xABABCDEF
535 temp = ((temp >> 8) & 0x000000FF) | (temp & 0xFFFFFF00); // 0xABABCDEF -> 0xABABCDCD
536 doubletemp[0] = temp;
538 work = ((work << 8) & 0x00FFFF00) | (work & 0xFF0000FF); // 0xABCDEFGH -> 0xABEFGHGH
539 work = ((work << 8) & 0xFF000000) | (work & 0x00FFFFFF); // 0xABEFGHGH -> 0xEFEFGHGH
540 doubletemp[1] = work;
542 *d = *(double *) &(doubletemp[0]);
552 static void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize );
554 #if !defined(NO_ASM) && defined(__WATCOMC__)
556 #pragma aux modex_copy_column parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = \
565 #elif !defined(NO_ASM) && defined(__GNUC__)
567 static inline void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize ) {
568 /*#pragma aux modex_copy_column parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = */
569 __asm__ __volatile__ (
571 "movb (%%esi), %%al;"
573 "movb %%al, (%%edi);"
577 : : "S" (src), "D" (dest), "c" (num_pixels), "b" (src_rowsize), "d" (dest_rowsize)
578 : "%eax", "%ecx", "%esi", "%edi");
583 static void modex_copy_column(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize )
587 num_pixels = num_pixels;
588 src_rowsize = src_rowsize;
589 dest_rowsize = dest_rowsize;
596 static void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize );
598 #if !defined(NO_ASM) && defined(__WATCOMC__)
600 #pragma aux modex_copy_column_m parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = \
604 "cmp al, " TRANSPARENCY_COLOR_STR \
612 #elif !defined(NO_ASM) && defined(__GNUC__)
614 static inline void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize ) {
615 /* #pragma aux modex_copy_column_m parm [esi] [edi] [ecx] [ebx] [edx] modify exact [ecx esi edi] = */
617 __asm__ __volatile__ (
619 "movb (%%esi), %%al;"
621 "cmpb $" TRANSPARENCY_COLOR_STR ", %%al;"
623 "movb %%al, (%%edi);"
628 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
629 : "1" (src), "2" (dest), "0" (num_pixels), "b" (src_rowsize), "d" (dest_rowsize)
635 static void modex_copy_column_m(ubyte * src, ubyte * dest, int num_pixels, int src_rowsize, int dest_rowsize )
639 num_pixels = num_pixels;
640 src_rowsize = src_rowsize;
641 dest_rowsize = dest_rowsize;
647 #endif /* __MSDOS__ */
649 void gr_ubitmap00( int x, int y, grs_bitmap *bm )
654 unsigned char * dest;
657 dest_rowsize=grd_curcanv->cv_bitmap.bm_rowsize << gr_bitblt_dest_step_shift;
658 dest = &(grd_curcanv->cv_bitmap.bm_data[ dest_rowsize*y+x ]);
662 for (y1=0; y1 < bm->bm_h; y1++ ) {
663 if (gr_bitblt_double)
664 gr_linear_rep_movsd_2x( src, dest, bm->bm_w );
666 gr_linear_movsd( src, dest, bm->bm_w );
667 src += bm->bm_rowsize;
668 dest+= (int)(dest_rowsize);
672 void gr_ubitmap00m( int x, int y, grs_bitmap *bm )
677 unsigned char * dest;
680 dest_rowsize=grd_curcanv->cv_bitmap.bm_rowsize << gr_bitblt_dest_step_shift;
681 dest = &(grd_curcanv->cv_bitmap.bm_data[ dest_rowsize*y+x ]);
685 if (gr_bitblt_fade_table==NULL) {
686 for (y1=0; y1 < bm->bm_h; y1++ ) {
687 gr_linear_rep_movsdm( src, dest, bm->bm_w );
688 src += bm->bm_rowsize;
689 dest+= (int)(dest_rowsize);
692 for (y1=0; y1 < bm->bm_h; y1++ ) {
693 gr_linear_rep_movsdm_faded( src, dest, bm->bm_w, gr_bitblt_fade_table[y1+y] );
694 src += bm->bm_rowsize;
695 dest+= (int)(dest_rowsize);
720 static void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels );
722 #if !defined(NO_ASM) && defined(__WATCOMC__)
724 #pragma aux modex_copy_scanline parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = \
731 " mov al, [esi+8] " \
732 " mov ah, [esi+12] " \
735 " mov ah, [esi+4] " \
740 " jne next4pixels " \
753 #elif !defined (NO_ASM) && defined(__GNUC__)
755 static inline void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels ) {
756 /* #pragma aux modex_copy_scanline parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] */
758 __asm__ __volatile__ (
759 " movl %%ecx, %%ebx;"
765 " movb 8(%%esi), %%al;"
766 " movb 12(%%esi), %%ah;"
768 " movb (%%esi), %%al;"
769 " movb 4(%%esi), %%ah;"
770 " movl %%eax, (%%edi);"
779 " movb (%%esi), %%al;"
781 " movb %%al, (%%edi);"
786 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
787 : "1" (src), "2" (dest), "0" (npixels)
788 : "%eax", "%ebx", "%edx" );
793 static void modex_copy_scanline( ubyte * src, ubyte * dest, int npixels )
803 static void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels );
805 #if !defined(NO_ASM) && defined(__WATCOMC__)
807 #pragma aux modex_copy_scanline_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = \
814 " mov al, [esi+4] " \
815 " mov ah, [esi+6] " \
818 " mov ah, [esi+2] " \
823 " jne next4pixels " \
836 #elif !defined(NO_ASM) && defined(__GNUC__)
838 static inline void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels ) {
839 /* #pragma aux modex_copy_scanline_2x parm [esi] [edi] [ecx] modify exact [ecx esi edi eax ebx edx] = */
841 __asm__ __volatile__ (
842 " movl %%ecx, %%ebx;"
848 " movb 4(%%esi), %%al;"
849 " movb 6(%%esi), %%ah;"
851 " movb (%%esi), %%al;"
852 " movb 2(%%esi), %%ah;"
853 " movl %%eax, (%%edi);"
862 " movb (%%esi),%%al;"
864 " movb %%al, (%%edi);"
869 : "=c" (dummy[0]), "=S" (dummy[1]), "=D" (dummy[2])
870 : "1" (src), "2" (dest), "0" (npixels)
871 : "%eax", "%ebx", "%edx" );
876 static void modex_copy_scanline_2x( ubyte * src, ubyte * dest, int npixels )
887 // From Linear to ModeX
888 void gr_bm_ubitblt01(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
898 sstep = src->bm_rowsize;
899 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
901 if (!gr_bitblt_double) {
902 for (plane=0; plane<4; plane++ ) {
903 gr_modex_setplane( (plane+dx)&3 );
904 sbits = src->bm_data + (src->bm_rowsize * sy) + sx + plane;
905 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + ((plane+dx)/4) ];
907 if ( (w&3) > plane ) w1++;
908 for (y=dy; y < dy+h; y++ ) {
909 modex_copy_scanline( sbits, dbits, w1 );
915 for (plane=0; plane<4; plane++ ) {
916 gr_modex_setplane( (plane+dx)&3 );
917 sbits = src->bm_data + (src->bm_rowsize * sy) + sx + plane/2;
918 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + ((plane+dx)/4) ];
920 if ( (w&3) > plane ) w1++;
921 for (y=dy; y < dy+h; y++ ) {
922 modex_copy_scanline_2x( sbits, dbits, w1 );
931 // From Linear to ModeX masked
932 void gr_bm_ubitblt01m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
943 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
944 dbits = &gr_video_memory[(dest->bm_rowsize * dy) + dx/4];
946 for (x=dx; x < dx+w; x++ ) {
947 gr_modex_setplane( x&3 );
951 //for (y=0; y < h; y++ ) {
952 // *dbits1 = *sbits1;
953 // sbits1 += src_bm_rowsize;
954 // dbits1 += dest_bm_rowsize;
956 modex_copy_column_m(sbits, dbits, h, src->bm_rowsize, dest->bm_rowsize << gr_bitblt_dest_step_shift );
964 #endif /* __MSDOS__ */
967 void gr_ubitmap012( int x, int y, grs_bitmap *bm )
974 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
975 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
976 gr_setcolor( *src++ );
982 void gr_ubitmap012m( int x, int y, grs_bitmap *bm )
989 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
990 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
991 if ( *src != TRANSPARENCY_COLOR ) {
1000 #if defined(POLY_ACC)
1001 void gr_ubitmap05( int x, int y, grs_bitmap *bm )
1003 register int x1, y1;
1010 dst = (short *)(DATA + y * ROWSIZE + x * PA_BPP);
1011 mod = ROWSIZE / 2 - bm->bm_w;
1013 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
1014 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
1015 *dst++ = pa_clut[*src++];
1021 void gr_ubitmap05m( int x, int y, grs_bitmap *bm )
1023 register int x1, y1;
1030 dst = (short *)(DATA + y * ROWSIZE + x * PA_BPP);
1031 mod = ROWSIZE / 2 - bm->bm_w;
1033 for (y1=y; y1 < (y+bm->bm_h); y1++ ) {
1034 for (x1=x; x1 < (x+bm->bm_w); x1++ ) {
1035 if ( *src != TRANSPARENCY_COLOR ) {
1036 *dst = pa_clut[*src];
1045 void gr_bm_ubitblt05_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1047 unsigned short * dbits;
1048 unsigned char * sbits, scanline[640];
1049 int i, data_offset, j, nextrow;
1052 nextrow=dest->bm_rowsize/PA_BPP;
1055 if (src->bm_flags & BM_FLAG_RLE_BIG)
1058 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1059 for (i=0; i<sy; i++ )
1060 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1062 dbits = (unsigned short *)(dest->bm_data + (dest->bm_rowsize * dy) + dx*PA_BPP);
1064 // No interlacing, copy the whole buffer.
1065 for (i=0; i < h; i++ ) {
1066 gr_rle_expand_scanline( scanline, sbits, sx, sx+w-1 );
1067 for(j = 0; j != w; ++j)
1068 dbits[j] = pa_clut[scanline[j]];
1069 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1070 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1072 sbits += (int)(src->bm_data[4+i+sy]);
1077 void gr_bm_ubitblt05m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1079 unsigned short * dbits;
1080 unsigned char * sbits, scanline[640];
1081 int i, data_offset, j, nextrow;
1084 nextrow=dest->bm_rowsize/PA_BPP;
1086 if (src->bm_flags & BM_FLAG_RLE_BIG)
1089 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1090 for (i=0; i<sy; i++ )
1091 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1093 dbits = (unsigned short *)(dest->bm_data + (dest->bm_rowsize * dy) + dx*PA_BPP);
1095 // No interlacing, copy the whole buffer.
1096 for (i=0; i < h; i++ ) {
1097 gr_rle_expand_scanline( scanline, sbits, sx, sx+w-1 );
1098 for(j = 0; j != w; ++j)
1099 if(scanline[j] != TRANSPARENCY_COLOR)
1100 dbits[j] = pa_clut[scanline[j]];
1101 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1102 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1104 sbits += (int)(src->bm_data[4+i+sy]);
1110 void gr_ubitmapGENERIC(int x, int y, grs_bitmap * bm)
1112 register int x1, y1;
1114 for (y1=0; y1 < bm->bm_h; y1++ ) {
1115 for (x1=0; x1 < bm->bm_w; x1++ ) {
1116 gr_setcolor( gr_gpixel(bm,x1,y1) );
1117 gr_upixel( x+x1, y+y1 );
1122 void gr_ubitmapGENERICm(int x, int y, grs_bitmap * bm)
1124 register int x1, y1;
1127 for (y1=0; y1 < bm->bm_h; y1++ ) {
1128 for (x1=0; x1 < bm->bm_w; x1++ ) {
1129 c = gr_gpixel(bm,x1,y1);
1130 if ( c != TRANSPARENCY_COLOR ) {
1132 gr_upixel( x+x1, y+y1 );
1140 // From linear to SVGA
1141 void gr_bm_ubitblt02(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1143 unsigned char * sbits;
1145 unsigned int offset, EndingOffset, VideoLocation;
1147 int sbpr, dbpr, y1, page, BytesToMove;
1149 sbpr = src->bm_rowsize;
1151 dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1153 VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1155 sbits = src->bm_data + ( sbpr*sy ) + sx;
1157 for (y1=0; y1 < h; y1++ ) {
1159 page = VideoLocation >> 16;
1160 offset = VideoLocation & 0xFFFF;
1162 gr_vesa_setpage( page );
1164 EndingOffset = offset+w-1;
1166 if ( EndingOffset <= 0xFFFF )
1168 if ( gr_bitblt_double )
1169 gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), w );
1171 gr_linear_movsd( (void *)sbits, (void *)(offset+0xA0000), w );
1173 VideoLocation += dbpr;
1178 BytesToMove = 0xFFFF-offset+1;
1180 if ( gr_bitblt_double )
1181 gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1183 gr_linear_movsd( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1186 gr_vesa_setpage(page);
1188 if ( gr_bitblt_double )
1189 gr_linear_rep_movsd_2x( (void *)(sbits+BytesToMove/2), (void *)0xA0000, EndingOffset - 0xFFFF );
1191 gr_linear_movsd( (void *)(sbits+BytesToMove), (void *)0xA0000, EndingOffset - 0xFFFF );
1193 VideoLocation += dbpr;
1202 void gr_bm_ubitblt02m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1204 unsigned char * sbits;
1206 unsigned int offset, EndingOffset, VideoLocation;
1208 int sbpr, dbpr, y1, page, BytesToMove;
1210 sbpr = src->bm_rowsize;
1212 dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1214 VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1216 sbits = src->bm_data + ( sbpr*sy ) + sx;
1218 for (y1=0; y1 < h; y1++ ) {
1220 page = VideoLocation >> 16;
1221 offset = VideoLocation & 0xFFFF;
1223 gr_vesa_setpage( page );
1225 EndingOffset = offset+w-1;
1227 if ( EndingOffset <= 0xFFFF )
1229 gr_linear_rep_movsdm( (void *)sbits, (void *)(offset+0xA0000), w );
1231 VideoLocation += dbpr;
1236 BytesToMove = 0xFFFF-offset+1;
1238 gr_linear_rep_movsdm( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1241 gr_vesa_setpage(page);
1243 gr_linear_rep_movsdm( (void *)(sbits+BytesToMove), (void *)0xA0000, EndingOffset - 0xFFFF );
1245 VideoLocation += dbpr;
1252 // From SVGA to linear
1253 void gr_bm_ubitblt20(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1255 unsigned char * dbits;
1257 unsigned int offset, offset1, offset2;
1259 int sbpr, dbpr, y1, page;
1261 dbpr = dest->bm_rowsize;
1263 sbpr = src->bm_rowsize;
1265 for (y1=0; y1 < h; y1++ ) {
1267 offset2 = (unsigned int)src->bm_data + (sbpr * (y1+sy)) + sx;
1268 dbits = dest->bm_data + (dbpr * (y1+dy)) + dx;
1270 page = offset2 >> 16;
1271 offset = offset2 & 0xFFFF;
1272 offset1 = offset+w-1;
1273 gr_vesa_setpage( page );
1275 if ( offset1 > 0xFFFF ) {
1276 // Overlaps two pages
1277 while( offset <= 0xFFFF )
1278 *dbits++ = gr_video_memory[offset++];
1279 offset1 -= (0xFFFF+1);
1282 gr_vesa_setpage(page);
1284 while( offset <= offset1 )
1285 *dbits++ = gr_video_memory[offset++];
1292 //@extern int Interlacing_on;
1294 // From Linear to Linear
1295 void gr_bm_ubitblt00(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1297 unsigned char * dbits;
1298 unsigned char * sbits;
1299 //int src_bm_rowsize_2, dest_bm_rowsize_2;
1304 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1305 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1307 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1309 // No interlacing, copy the whole buffer.
1310 for (i=0; i < h; i++ ) {
1311 if (gr_bitblt_double)
1312 gr_linear_rep_movsd_2x( sbits, dbits, w );
1314 gr_linear_movsd( sbits, dbits, w );
1315 sbits += src->bm_rowsize;
1319 // From Linear to Linear Masked
1320 void gr_bm_ubitblt00m(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1322 unsigned char * dbits;
1323 unsigned char * sbits;
1324 //int src_bm_rowsize_2, dest_bm_rowsize_2;
1328 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1329 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1331 // No interlacing, copy the whole buffer.
1333 if (gr_bitblt_fade_table==NULL) {
1334 for (i=0; i < h; i++ ) {
1335 gr_linear_rep_movsdm( sbits, dbits, w );
1336 sbits += src->bm_rowsize;
1337 dbits += dest->bm_rowsize;
1340 for (i=0; i < h; i++ ) {
1341 gr_linear_rep_movsdm_faded( sbits, dbits, w, gr_bitblt_fade_table[dy+i] );
1342 sbits += src->bm_rowsize;
1343 dbits += dest->bm_rowsize;
1349 extern void gr_lbitblt( grs_bitmap * source, grs_bitmap * dest, int height, int width );
1353 // width == number of destination pixels
1355 void gr_linear_movsd_double(ubyte *src, ubyte *dest, int width)
1357 double *d = (double *)dest;
1358 uint *s = (uint *)src;
1363 num_pixels = width / 2;
1364 if ( (num_pixels & 0x3) || (((int)src & 0x7) != ((int)dest & 0x7)) ) {
1365 // not a multiple of 4? do single pixel at a time
1366 for (i=0; i<num_pixels; i++) {
1373 for (i = 0; i < num_pixels / 4; i++) {
1376 temp = ((temp >> 8) & 0x00FFFF00) | (temp & 0xFF0000FF); // 0xABCDEFGH -> 0xABABCDEF
1377 temp = ((temp >> 8) & 0x000000FF) | (temp & 0xFFFFFF00); // 0xABABCDEF -> 0xABABCDCD
1378 doubletemp[0] = temp;
1380 work = ((work << 8) & 0x00FFFF00) | (work & 0xFF0000FF); // 0xABCDEFGH -> 0xABEFGHGH
1381 work = ((work << 8) & 0xFF000000) | (work & 0x00FFFFFF); // 0xABEFGHGH -> 0xEFEFGHGH
1382 doubletemp[1] = work;
1384 *d = *(double *) &(doubletemp[0]);
1389 //extern void BlitLargeAlign(ubyte *draw_buffer, int dstRowBytes, ubyte *dstPtr, int w, int h, int modulus);
1391 asm void BlitLargeAlign(ubyte *rSrcPtr, int rDblDStrd, ubyte *rDst1Ptr, int rWidth, int rHeight, int rModulus)
1393 stw r31,-4(SP) // store non-volatile reg in red zone
1394 addi r5,r5,-8 // subtract 8 from dst
1395 stw r30,-8(SP) // store non-volatile reg in red zone
1397 la r30,-16(SP) // calculate copy of local 8-byte variable
1399 // rSStrd = modulus - w
1400 add r31,r5,r4 // dst2 = dstRowBytes + dst1
1401 sub r4,r4,r6 // r4 = dstRowBytes - w
1402 addi r7,r7,-1 // subtract 1 from height count
1403 srawi r6,r6,2 // rWidth = w >> 2
1404 addi r3,r3,-4 // subtract 4 from src
1405 addi r6,r6,-1 // subtract 1 from width count
1406 add r4,r4,r4 // rDblDStrd = 2 * r4
1408 BlitLargeAlignY: // y count is in r7
1409 lwzu r10,4(r3) // load a long into r10
1410 mr r0,r10 // put a copy in r0
1412 // these are simplified -- can't use 'em inslwi r0,r10,16,8
1413 // these are simplified -- can't use 'em insrwi r11,r10,16,8
1414 rlwimi r0,r10,24,8,31
1415 rlwimi r11,r10,8,8,23
1416 rlwimi r0,r10,16,24,31
1418 rlwimi r11,r10,16,0,7
1420 mtctr r6 // copy x count into the counter
1424 lwzu r10,4(r3) // load a long into r10
1426 mr r0,r10 // put a copy in r0
1428 // simplefied inslwi r0,r10,16,8
1429 // simplefied insrwi r11,r10,16,8
1430 rlwimi r0,r10,24,8,31
1431 rlwimi r11,r10,8,8,23
1432 rlwimi r0,r10,16,24,31
1434 rlwimi r11,r10,16,0,7
1438 bdnz BlitLargeAlignX // loop over all x
1441 addic. r7,r7,-1 // decrement the counter
1449 bne BlitLargeAlignY // loop for all y
1451 lwz r30,-8(SP) // restore non-volatile regs
1452 lwz r31,-4(SP) // restore non-volatile regs
1453 blr // return to caller
1456 void gr_bm_ubitblt_double(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap *src, grs_bitmap *dest)
1462 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1463 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1464 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1465 Assert( !((int)dbits & 0x7) ); // assert to check double word alignment
1466 BlitLargeAlign(sbits, dstep, dbits, src->bm_w, src->bm_h, src->bm_rowsize);
1469 // w and h are the doubled width and height
1471 void gr_bm_ubitblt_double_slow(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap *src, grs_bitmap *dest)
1477 sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1478 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1479 dstep = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1481 for (i=0; i < h; i++ ) {
1483 gr_linear_movsd_double(sbits, dbits, w);
1486 sbits += src->bm_rowsize;
1490 #endif /* MACINTOSH */
1493 // Clipped bitmap ...
1495 void gr_bitmap( int x, int y, grs_bitmap *bm )
1497 int dx1=x, dx2=x+bm->bm_w-1;
1498 int dy1=y, dy2=y+bm->bm_h-1;
1501 if ((dx1 >= grd_curcanv->cv_bitmap.bm_w ) || (dx2 < 0)) return;
1502 if ((dy1 >= grd_curcanv->cv_bitmap.bm_h) || (dy2 < 0)) return;
1503 if ( dx1 < 0 ) { sx = -dx1; dx1 = 0; }
1504 if ( dy1 < 0 ) { sy = -dy1; dy1 = 0; }
1505 if ( dx2 >= grd_curcanv->cv_bitmap.bm_w ) { dx2 = grd_curcanv->cv_bitmap.bm_w-1; }
1506 if ( dy2 >= grd_curcanv->cv_bitmap.bm_h ) { dy2 = grd_curcanv->cv_bitmap.bm_h-1; }
1508 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
1510 gr_bm_ubitblt(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
1514 //-NOT-used // From linear to SVGA
1515 //-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)
1517 //-NOT-used unsigned char * sbits;
1519 //-NOT-used unsigned int offset, EndingOffset, VideoLocation;
1521 //-NOT-used int sbpr, dbpr, y1, page, BytesToMove;
1523 //-NOT-used sbpr = src->bm_rowsize;
1525 //-NOT-used dbpr = dest->bm_rowsize << gr_bitblt_dest_step_shift;
1527 //-NOT-used VideoLocation = (unsigned int)dest->bm_data + (dest->bm_rowsize * dy) + dx;
1529 //-NOT-used sbits = src->bm_data + ( sbpr*sy ) + sx;
1531 //-NOT-used for (y1=0; y1 < h; y1++ ) {
1533 //-NOT-used page = VideoLocation >> 16;
1534 //-NOT-used offset = VideoLocation & 0xFFFF;
1536 //-NOT-used gr_vesa_setpage( page );
1538 //-NOT-used EndingOffset = offset+w-1;
1540 //-NOT-used if ( EndingOffset <= 0xFFFF )
1542 //-NOT-used gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), w );
1544 //-NOT-used VideoLocation += dbpr;
1545 //-NOT-used sbits += sbpr;
1549 //-NOT-used BytesToMove = 0xFFFF-offset+1;
1551 //-NOT-used gr_linear_rep_movsd_2x( (void *)sbits, (void *)(offset+0xA0000), BytesToMove );
1554 //-NOT-used gr_vesa_setpage(page);
1556 //-NOT-used gr_linear_rep_movsd_2x( (void *)(sbits+BytesToMove/2), (void *)0xA0000, EndingOffset - 0xFFFF );
1558 //-NOT-used VideoLocation += dbpr;
1559 //-NOT-used sbits += sbpr;
1567 //-NOT-used // From Linear to Linear
1568 //-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)
1570 //-NOT-used unsigned char * dbits;
1571 //-NOT-used unsigned char * sbits;
1572 //-NOT-used //int src_bm_rowsize_2, dest_bm_rowsize_2;
1576 //-NOT-used sbits = src->bm_data + (src->bm_rowsize * sy) + sx;
1577 //-NOT-used dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1579 //-NOT-used // No interlacing, copy the whole buffer.
1580 //-NOT-used for (i=0; i < h; i++ ) {
1581 //-NOT-used gr_linear_rep_movsd_2x( sbits, dbits, w );
1583 //-NOT-used sbits += src->bm_rowsize;
1584 //-NOT-used dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1588 void gr_bm_ubitblt00_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1590 unsigned char * dbits;
1591 unsigned char * sbits;
1595 if (src->bm_flags & BM_FLAG_RLE_BIG)
1598 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1600 for (i=0; i<sy; i++ )
1601 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1603 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1605 // No interlacing, copy the whole buffer.
1606 for (i=0; i < h; i++ ) {
1607 gr_rle_expand_scanline( dbits, sbits, sx, sx+w-1 );
1608 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1609 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1611 sbits += (int)(src->bm_data[4+i+sy]);
1612 dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1616 void gr_bm_ubitblt00m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1618 unsigned char * dbits;
1619 unsigned char * sbits;
1623 if (src->bm_flags & BM_FLAG_RLE_BIG)
1626 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1627 for (i=0; i<sy; i++ )
1628 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1630 dbits = dest->bm_data + (dest->bm_rowsize * dy) + dx;
1632 // No interlacing, copy the whole buffer.
1633 for (i=0; i < h; i++ ) {
1634 gr_rle_expand_scanline_masked( dbits, sbits, sx, sx+w-1 );
1635 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1636 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((i+sy)*data_offset)])));
1638 sbits += (int)(src->bm_data[4+i+sy]);
1639 dbits += dest->bm_rowsize << gr_bitblt_dest_step_shift;
1645 extern void gr_rle_expand_scanline_generic( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1646 extern void gr_rle_expand_scanline_generic_masked( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1647 extern void gr_rle_expand_scanline_svga_masked( grs_bitmap * dest, int dx, int dy, ubyte *src, int x1, int x2 );
1649 void gr_bm_ubitblt0x_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1653 unsigned char * sbits;
1655 //mprintf( 0, "SVGA RLE!\n" );
1658 if (src->bm_flags & BM_FLAG_RLE_BIG)
1661 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1662 for (i=0; i<sy; i++ )
1663 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1665 for (y1=0; y1 < h; y1++ ) {
1666 gr_rle_expand_scanline_generic( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1667 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1668 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1670 sbits += (int)src->bm_data[4+y1+sy];
1675 void gr_bm_ubitblt0xm_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1679 unsigned char * sbits;
1681 //mprintf( 0, "SVGA RLE!\n" );
1684 if (src->bm_flags & BM_FLAG_RLE_BIG)
1687 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1688 for (i=0; i<sy; i++ )
1689 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1691 for (y1=0; y1 < h; y1++ ) {
1692 gr_rle_expand_scanline_generic_masked( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1693 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1694 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1696 sbits += (int)src->bm_data[4+y1+sy];
1702 void gr_bm_ubitblt02m_rle(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1706 unsigned char * sbits;
1708 //mprintf( 0, "SVGA RLE!\n" );
1711 if (src->bm_flags & BM_FLAG_RLE_BIG)
1714 sbits = &src->bm_data[4 + (src->bm_h*data_offset)];
1715 for (i=0; i<sy; i++ )
1716 sbits += (int)(INTEL_SHORT(src->bm_data[4+(i*data_offset)]));
1718 for (y1=0; y1 < h; y1++ ) {
1719 gr_rle_expand_scanline_svga_masked( dest, dx, dy+y1, sbits, sx, sx+w-1 );
1720 if ( src->bm_flags & BM_FLAG_RLE_BIG )
1721 sbits += (int)INTEL_SHORT(*((short *)&(src->bm_data[4+((y1+sy)*data_offset)])));
1723 sbits += (int)src->bm_data[4+y1+sy];
1728 void gr_bm_ubitblt(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1730 register int x1, y1;
1732 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_LINEAR ))
1734 if ( src->bm_flags & BM_FLAG_RLE )
1735 gr_bm_ubitblt00_rle( w, h, dx, dy, sx, sy, src, dest );
1737 gr_bm_ubitblt00( w, h, dx, dy, sx, sy, src, dest );
1742 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_OGL ))
1744 ogl_ubitblt(w, h, dx, dy, sx, sy, src, dest);
1747 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_LINEAR ))
1749 ogl_ubitblt_tolinear(w, h, dx, dy, sx, sy, src, dest);
1752 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_OGL ))
1754 ogl_ubitblt_copy(w, h, dx, dy, sx, sy, src, dest);
1760 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_DIRECTX ))
1762 Assert ((int)dest->bm_data == BM_D3D_RENDER || (int)dest->bm_data == BM_D3D_DISPLAY);
1763 Win32_BlitLinearToDirectX_bm (src, sx, sy, w, h, dx, dy, 0);
1766 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_LINEAR ))
1770 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_DIRECTX ))
1776 if ( (src->bm_flags & BM_FLAG_RLE ) && (src->bm_type == BM_LINEAR) ) {
1777 gr_bm_ubitblt0x_rle(w, h, dx, dy, sx, sy, src, dest );
1782 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_SVGA ))
1784 gr_bm_ubitblt02( w, h, dx, dy, sx, sy, src, dest );
1788 if ( (src->bm_type == BM_SVGA) && (dest->bm_type == BM_LINEAR ))
1790 gr_bm_ubitblt20( w, h, dx, dy, sx, sy, src, dest );
1794 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_MODEX ))
1796 gr_bm_ubitblt01( w, h, dx+XOFFSET, dy+YOFFSET, sx, sy, src, dest );
1801 #if defined(POLY_ACC)
1802 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_LINEAR15 ))
1804 ubyte *s = src->bm_data + sy * src->bm_rowsize + sx;
1805 ushort *t = (ushort *)(dest->bm_data + dy * dest->bm_rowsize + dx * PA_BPP);
1810 for(x = 0; x < w; x++)
1811 t[x] = pa_clut[s[x]];
1812 s += src->bm_rowsize;
1813 t += dest->bm_rowsize / PA_BPP;
1818 if ( (src->bm_type == BM_LINEAR15) && (dest->bm_type == BM_LINEAR15 ))
1820 pa_blit(dest, dx, dy, src, sx, sy, w, h);
1825 for (y1=0; y1 < h; y1++ ) {
1826 for (x1=0; x1 < w; x1++ ) {
1827 gr_bm_pixel( dest, dx+x1, dy+y1, gr_gpixel(src,sx+x1,sy+y1) );
1832 void gr_bm_bitblt(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1834 int dx1=dx, dx2=dx+dest->bm_w-1;
1835 int dy1=dy, dy2=dy+dest->bm_h-1;
1837 int sx1=sx, sx2=sx+src->bm_w-1;
1838 int sy1=sy, sy2=sy+src->bm_h-1;
1840 if ((dx1 >= dest->bm_w ) || (dx2 < 0)) return;
1841 if ((dy1 >= dest->bm_h ) || (dy2 < 0)) return;
1842 if ( dx1 < 0 ) { sx1 += -dx1; dx1 = 0; }
1843 if ( dy1 < 0 ) { sy1 += -dy1; dy1 = 0; }
1844 if ( dx2 >= dest->bm_w ) { dx2 = dest->bm_w-1; }
1845 if ( dy2 >= dest->bm_h ) { dy2 = dest->bm_h-1; }
1847 if ((sx1 >= src->bm_w ) || (sx2 < 0)) return;
1848 if ((sy1 >= src->bm_h ) || (sy2 < 0)) return;
1849 if ( sx1 < 0 ) { dx1 += -sx1; sx1 = 0; }
1850 if ( sy1 < 0 ) { dy1 += -sy1; sy1 = 0; }
1851 if ( sx2 >= src->bm_w ) { sx2 = src->bm_w-1; }
1852 if ( sy2 >= src->bm_h ) { sy2 = src->bm_h-1; }
1854 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
1855 if ( dx2-dx1+1 < w )
1857 if ( dy2-dy1+1 < h )
1859 if ( sx2-sx1+1 < w )
1861 if ( sy2-sy1+1 < h )
1864 gr_bm_ubitblt(w,h, dx1, dy1, sx1, sy1, src, dest );
1867 void gr_ubitmap( int x, int y, grs_bitmap *bm )
1871 source = bm->bm_type;
1874 if (source==BM_LINEAR) {
1878 if ( bm->bm_flags & BM_FLAG_RLE )
1879 gr_bm_ubitblt00_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1881 gr_ubitmap00( x, y, bm );
1885 ogl_ubitmapm(x,y,bm);
1890 Assert ((int)grd_curcanv->cv_bitmap.bm_data == BM_D3D_RENDER || (int)grd_curcanv->cv_bitmap.bm_data == BM_D3D_DISPLAY);
1891 Win32_BlitLinearToDirectX_bm(bm, 0, 0, bm->bm_w, bm->bm_h, x, y, 0);
1896 if ( bm->bm_flags & BM_FLAG_RLE )
1897 gr_bm_ubitblt0x_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1899 gr_vesa_bitmap( bm, &grd_curcanv->cv_bitmap, x, y );
1902 gr_bm_ubitblt01(bm->bm_w, bm->bm_h, x+XOFFSET, y+YOFFSET, 0, 0, bm, &grd_curcanv->cv_bitmap);
1905 #if defined(POLY_ACC)
1907 if ( bm->bm_flags & BM_FLAG_RLE )
1908 gr_bm_ubitblt05_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1910 gr_ubitmap05( x, y, bm);
1915 gr_ubitmap012( x, y, bm );
1919 gr_ubitmapGENERIC(x, y, bm);
1924 void gr_ubitmapm( int x, int y, grs_bitmap *bm )
1928 source = bm->bm_type;
1931 Assert(x+bm->bm_w <= grd_curcanv->cv_w);
1932 Assert(y+bm->bm_h <= grd_curcanv->cv_h);
1935 _3dfx_Blit( x, y, bm );
1936 if ( _3dfx_skip_ddraw )
1940 if (source==BM_LINEAR) {
1944 if ( bm->bm_flags & BM_FLAG_RLE )
1945 gr_bm_ubitblt00m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1947 gr_ubitmap00m( x, y, bm );
1951 ogl_ubitmapm(x,y,bm);
1956 if (bm->bm_w < 35 && bm->bm_h < 35) {
1957 // ugly hack needed for reticle
1958 if ( bm->bm_flags & BM_FLAG_RLE )
1959 gr_bm_ubitblt0x_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap, 1 );
1961 gr_ubitmapGENERICm(x, y, bm);
1964 Assert ((int)grd_curcanv->cv_bitmap.bm_data == BM_D3D_RENDER || (int)grd_curcanv->cv_bitmap.bm_data == BM_D3D_DISPLAY);
1965 Win32_BlitLinearToDirectX_bm(bm, 0, 0, bm->bm_w, bm->bm_h, x, y, 1);
1970 if (bm->bm_flags & BM_FLAG_RLE)
1971 gr_bm_ubitblt02m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1972 //gr_bm_ubitblt0xm_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1974 gr_bm_ubitblt02m(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap);
1975 //gr_ubitmapGENERICm(x, y, bm);
1978 gr_bm_ubitblt01m(bm->bm_w, bm->bm_h, x+XOFFSET, y+YOFFSET, 0, 0, bm, &grd_curcanv->cv_bitmap);
1981 #if defined(POLY_ACC)
1983 if ( bm->bm_flags & BM_FLAG_RLE )
1984 gr_bm_ubitblt05m_rle(bm->bm_w, bm->bm_h, x, y, 0, 0, bm, &grd_curcanv->cv_bitmap );
1986 gr_ubitmap05m( x, y, bm );
1991 gr_ubitmap012m( x, y, bm );
1995 gr_ubitmapGENERICm(x, y, bm);
2000 void gr_bitmapm( int x, int y, grs_bitmap *bm )
2002 int dx1=x, dx2=x+bm->bm_w-1;
2003 int dy1=y, dy2=y+bm->bm_h-1;
2006 if ((dx1 >= grd_curcanv->cv_bitmap.bm_w ) || (dx2 < 0)) return;
2007 if ((dy1 >= grd_curcanv->cv_bitmap.bm_h) || (dy2 < 0)) return;
2008 if ( dx1 < 0 ) { sx = -dx1; dx1 = 0; }
2009 if ( dy1 < 0 ) { sy = -dy1; dy1 = 0; }
2010 if ( dx2 >= grd_curcanv->cv_bitmap.bm_w ) { dx2 = grd_curcanv->cv_bitmap.bm_w-1; }
2011 if ( dy2 >= grd_curcanv->cv_bitmap.bm_h ) { dy2 = grd_curcanv->cv_bitmap.bm_h-1; }
2013 // Draw bitmap bm[x,y] into (dx1,dy1)-(dx2,dy2)
2015 if ( (bm->bm_type == BM_LINEAR) && (grd_curcanv->cv_bitmap.bm_type == BM_LINEAR ))
2017 if ( bm->bm_flags & BM_FLAG_RLE )
2018 gr_bm_ubitblt00m_rle(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
2020 gr_bm_ubitblt00m(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
2024 else if ( (bm->bm_type == BM_LINEAR) && (grd_curcanv->cv_bitmap.bm_type == BM_SVGA ))
2026 gr_bm_ubitblt02m(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
2031 gr_bm_ubitbltm(dx2-dx1+1,dy2-dy1+1, dx1, dy1, sx, sy, bm, &grd_curcanv->cv_bitmap );
2035 void gr_bm_ubitbltm(int w, int h, int dx, int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
2037 register int x1, y1;
2041 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_OGL ))
2043 ogl_ubitblt(w, h, dx, dy, sx, sy, src, dest);
2046 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_LINEAR ))
2048 ogl_ubitblt_tolinear(w, h, dx, dy, sx, sy, src, dest);
2051 if ( (src->bm_type == BM_OGL) && (dest->bm_type == BM_OGL ))
2053 ogl_ubitblt_copy(w, h, dx, dy, sx, sy, src, dest);
2058 if ( (src->bm_type == BM_LINEAR) && (dest->bm_type == BM_DIRECTX ))
2060 Assert ((int)dest->bm_data == BM_D3D_RENDER || (int)dest->bm_data == BM_D3D_DISPLAY);
2061 Win32_BlitLinearToDirectX_bm (src, sx, sy, w, h, dx, dy, 1);
2064 if ( (src->bm_type == BM_DIRECTX) && (dest->bm_type == BM_DIRECTX ))
2066 Assert ((int)src->bm_data == BM_D3D_RENDER || (int)src->bm_data == BM_D3D_DISPLAY);
2067 //Win32_BlitDirectXToDirectX (w, h, dx, dy, sx, sy, src->bm_data, dest->bm_data, 0);
2071 #if defined(POLY_ACC)
2072 if(src->bm_type == BM_LINEAR && dest->bm_type == BM_LINEAR15)
2080 s = (ubyte *)(src->bm_data + src->bm_rowsize * sy + sx);
2081 smod = src->bm_rowsize - w;
2082 d = (ushort *)(dest->bm_data + dest->bm_rowsize * dy + dx * PA_BPP);
2083 dmod = dest->bm_rowsize / PA_BPP - w;
2085 for (x1=w; x1--; ) {
2086 if ((u = *s) != TRANSPARENCY_COLOR)
2096 if(src->bm_type == BM_LINEAR15)
2098 Assert(src->bm_type == dest->bm_type); // I don't support 15 to 8 yet.
2099 pa_blit_transparent(dest, dx, dy, src, sx, sy, w, h);
2104 for (y1=0; y1 < h; y1++ ) {
2105 for (x1=0; x1 < w; x1++ ) {
2106 if ((c=gr_gpixel(src,sx+x1,sy+y1))!=TRANSPARENCY_COLOR)
2107 gr_bm_pixel( dest, dx+x1, dy+y1,c );
2113 // rescalling bitmaps, 10/14/99 Jan Bobrowski jb@wizard.ae.krakow.pl
2115 inline void scale_line(sbyte *in, sbyte *out, int ilen, int olen)
2117 int a = olen/ilen, b = olen%ilen;
2119 sbyte *end = out + olen;
2135 void gr_bitmap_scale_to(grs_bitmap *src, grs_bitmap *dst)
2137 sbyte *s = src->bm_data;
2138 sbyte *d = dst->bm_data;
2140 int a = dst->bm_h/h, b = dst->bm_h%h;
2143 for(y=0; y<h; y++) {
2152 scale_line(s, d, src->bm_w, dst->bm_w);
2153 d += dst->bm_rowsize;
2155 s += src->bm_rowsize;
2159 void show_fullscr(grs_bitmap *bm)
2161 grs_bitmap * const scr = &grd_curcanv->cv_bitmap;
2164 if(bm->bm_type == BM_LINEAR && scr->bm_type == BM_OGL) {
2165 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
2169 if(scr->bm_type != BM_LINEAR) {
2170 grs_bitmap *tmp = gr_create_bitmap(scr->bm_w, scr->bm_h);
2171 gr_bitmap_scale_to(bm, tmp);
2172 gr_bitmap(0, 0, tmp);
2173 gr_free_bitmap(tmp);
2176 gr_bitmap_scale_to(bm, scr);