2 * $Logfile: /Freespace2/code/Graphics/2d.cpp $
7 * Main file for 2d primitives.
10 * Revision 1.5 2002/05/28 04:18:08 theoddone33
11 * Fix some stuff and add -DFS2_DEMO
13 * Revision 1.4 2002/05/27 22:43:02 theoddone33
14 * Fix more glide symbols
16 * Revision 1.3 2002/05/27 22:39:21 theoddone33
17 * Remove glide symbols
19 * Revision 1.2 2002/05/07 03:16:45 theoddone33
20 * The Great Newline Fix
22 * Revision 1.1.1.1 2002/05/03 03:28:09 root
26 * 25 8/20/99 2:09p Dave
29 * 24 8/16/99 9:45a Jefff
30 * changes to cursor management to allow a 2nd temporary cursor
32 * 23 7/27/99 3:52p Dave
33 * Make star drawing a bit more robust to help lame D3D cards.
35 * 22 7/18/99 12:32p Dave
36 * Randomly oriented shockwaves.
38 * 21 7/15/99 3:07p Dave
39 * 32 bit detection support. Mouse coord commandline.
41 * 20 7/14/99 9:42a Dave
42 * Put in clear_color debug function. Put in base for 3dnow stuff / P3
45 * 19 7/13/99 1:15p Dave
46 * 32 bit support. Whee!
48 * 18 7/12/99 11:42a Jefff
49 * Made rectangle drawing smarter in D3D. Made plines draw properly on Ati
52 * 17 7/09/99 9:51a Dave
53 * Added thick polyline code.
55 * 16 7/02/99 3:05p Anoop
56 * Oops. Fixed g3_draw_2d_poly() so that it properly handles poly bitmap
57 * and LFB bitmap calls.
59 * 15 6/29/99 10:35a Dave
60 * Interface polygon bitmaps! Whee!
62 * 14 4/09/99 2:21p Dave
63 * Multiplayer beta stuff. CD checking.
65 * 13 2/03/99 11:44a Dave
66 * Fixed d3d transparent textures.
68 * 12 1/29/99 12:47a Dave
69 * Put in sounds for beam weapon. A bunch of interface screens (tech
72 * 11 1/15/99 11:29a Neilk
73 * Fixed D3D screen/texture pixel formatting problem.
75 * 10 1/08/99 2:08p Dave
76 * Fixed software rendering for pofview. Super early support for AWACS and
79 * 9 1/06/99 2:24p Dave
80 * Stubs and release build fixes.
82 * 8 12/18/98 1:49a Dave
83 * Fixed Fred initialization problem resulting from hi-res mode changes.
85 * 7 12/18/98 1:13a Dave
86 * Rough 1024x768 support for Direct3D. Proper detection and usage through
89 * 6 12/01/98 10:32a Johnson
90 * Fixed direct3d font problems. Fixed sun bitmap problem. Fixed direct3d
93 * 5 11/30/98 5:31p Dave
94 * Fixed up Fred support for software mode.
96 * 4 11/30/98 1:07p Dave
97 * 16 bit conversion, first run.
99 * 3 11/11/98 5:37p Dave
100 * Checkin for multiplayer testing.
102 * 2 10/07/98 10:52a Dave
105 * 1 10/07/98 10:48a Dave
107 * 122 6/13/98 3:18p Hoffoss
108 * NOX()ed out a bunch of strings that shouldn't be translated.
110 * 121 5/23/98 11:26a Hoffoss
111 * Fixed bug where optimized code used EDX and my code trashed it.
113 * 120 5/22/98 11:09p John
114 * put in code to hopefull not crash cyrix cpus
116 * 119 5/20/98 9:45p John
117 * added code so the places in code that change half the palette don't
118 * have to clear the screen.
120 * 118 5/20/98 12:59p Hoffoss
121 * Changed temporary crossfade code to just pop the image again.
123 * 117 5/16/98 1:18p John
124 * Made softtware DirectDraw reset palette after Alt+TAB.
126 * 116 5/14/98 5:42p John
127 * Revamped the whole window position/mouse code for the graphics windows.
129 * 115 5/08/98 10:49a John
130 * Made 'gr d' go into direct3d mode.
132 * 114 5/06/98 11:21p John
133 * Fixed a bitmap bug with Direct3D. Started adding new caching code into
136 * 113 4/21/98 9:28a John
137 * Added stub for cross-fade.
139 * 112 4/10/98 5:20p John
140 * Changed RGB in lighting structure to be ubytes. Removed old
141 * not-necessary 24 bpp software stuff.
143 * 111 4/06/98 12:55p John
144 * Upped the gamma for Fred.
146 * 110 3/25/98 8:07p John
147 * Restructured software rendering into two modules; One for windowed
148 * debug mode and one for DirectX fullscreen.
150 * 109 3/24/98 3:58p John
151 * Put in (hopefully) final gamma setting code.
153 * 108 3/10/98 4:18p John
154 * Cleaned up graphics lib. Took out most unused gr functions. Made D3D
155 * & Glide have popups and print screen. Took out all >8bpp software
156 * support. Made Fred zbuffer. Made zbuffer allocate dynamically to
157 * support Fred. Made zbuffering key off of functions rather than one
160 * 107 2/25/98 2:37p John
161 * Made afterburner shake 2x less noticable. Made 'gr a' leave Glide mode
162 * properly. Made model_caching never work in hardware mode.
164 * 106 2/23/98 2:27p John
165 * Made int3,asserts, etc pass video through.
167 * 105 2/20/98 3:13p John
168 * Made popup save code print an error an exit out if 3d accelerated.
170 * 104 2/19/98 6:13p John
171 * Made Glide do texturing & zbuffering.
173 * 103 1/26/98 5:12p John
174 * Added in code for Pentium Pro specific optimizations. Speed up
175 * zbuffered correct tmapper about 35%. Speed up non-zbuffered scalers
178 * 102 1/14/98 11:39a Dave
179 * Polished up a bunch of popup support items.
181 * 101 1/10/98 1:14p John
182 * Added explanation to debug console commands
184 * 100 12/21/97 4:33p John
185 * Made debug console functions a class that registers itself
186 * automatically, so you don't need to add the function to
187 * debugfunctions.cpp.
189 * 99 12/04/97 12:09p John
190 * Made glows use scaler instead of tmapper so they don't rotate. Had to
191 * add a zbuffered scaler.
193 * 98 12/03/97 10:47a John
194 * added functions to save/restore entire screens.
196 * 97 12/02/97 3:59p John
197 * Added first rev of thruster glow, along with variable levels of
198 * translucency, which retquired some restructing of palman.
200 * 96 11/30/97 12:18p John
201 * added more 24 & 32-bpp primitives
203 * 95 11/24/97 11:20a John
206 * 94 11/14/97 3:54p John
207 * Added triple buffering.
209 * 93 11/14/97 12:30p John
210 * Fixed some DirectX bugs. Moved the 8-16 xlat tables into Graphics
211 * libs. Made 16-bpp DirectX modes know what bitmap format they're in.
213 * 92 10/09/97 5:23p John
214 * Added support for more 16-bpp functions
216 * 91 9/20/97 8:16a John
217 * Made .clr files go into the Cache directory. Replaced cfopen(name,NULL)
218 * to delete a file with cf_delete.
220 * 90 9/09/97 11:01a Sandeep
221 * fixed warning level 4 bugs
223 * 89 9/07/97 10:01p Lawrance
224 * add in support for animating mouse pointer
226 * 88 9/03/97 4:32p John
227 * changed bmpman to only accept ani and pcx's. made passing .pcx or .ani
228 * to bm_load functions not needed. Made bmpman keep track of palettes
229 * for bitmaps not mapped into game palettes.
231 * 87 8/20/97 4:19p John
232 * added delay to hopefully fix mike's problems when getting int3's in
235 * 86 7/16/97 3:07p John
237 * 85 6/18/97 12:07p John
238 * fixed some color bugs
240 * 84 6/17/97 7:04p John
241 * added d3d support for gradients.
242 * fixed some color bugs by adding screen signatures instead of watching
243 * flags and palette changes.
245 * 83 6/17/97 12:03p John
246 * Moved color/alphacolor functions into their own module. Made all color
247 * functions be part of the low-level graphics drivers, not just the
250 * 82 6/12/97 5:04p John
251 * Initial rev of Glide support
253 * 81 6/11/97 5:49p John
254 * Changed palette code to only recalculate alphacolors when needed, not
255 * when palette changes.
257 * 80 6/11/97 1:12p John
258 * Started fixing all the text colors in the game.
260 * 79 6/06/97 5:03p John
261 * fixed bug withalpha colors failing after gr_init
263 * 78 6/06/97 4:53p John
264 * made gr_init not bash current color
266 * 77 6/05/97 4:53p John
267 * First rev of new antialiased font stuff.
269 * 76 5/20/97 10:36a John
270 * Fixed problem with user bitmaps and direct3d caching.
272 * 75 5/16/97 9:11a John
273 * fixed bug that made Ctrl+Break in fullscreen hang
275 * 74 5/14/97 4:38p John
276 * Fixed print_screen bug.
278 * 73 5/14/97 2:10p John
279 * added rudimentary support for windowed direct3d.
281 * 72 5/14/97 10:53a John
282 * fixed some discrepencies between d3d and software palette setting.
284 * 71 5/13/97 4:39p John
285 * Added console function to set graphics modes.
287 * 70 5/13/97 12:39p John
288 * Got fullscreen mode working.
290 * 69 5/12/97 12:27p John
291 * Restructured Graphics Library to add support for multiple renderers.
293 * 68 5/07/97 2:59p John
294 * Initial rev of D3D texturing.
296 * 67 5/01/97 3:32p John
297 * oops... forced 2d to always be in 8bpp,
299 * 66 5/01/97 3:23p John
300 * first hooks for some direct 3d setup stuff.
302 * 65 4/28/97 5:33p John
303 * fixed a newly introduced bug with fullscreen toggle.
305 * 64 4/28/97 4:46p John
307 * 63 4/22/97 12:20p John
308 * fixed more resource leaks
310 * 62 4/22/97 10:33a John
311 * fixed the 2d resource leaks that Alan found.
313 * 61 3/31/97 9:45a Allender
314 * start of new font stuff
316 * 60 3/26/97 10:52a Lawrance
317 * mouse always on in menus, disappears in gameplay after 1 second
319 * 59 3/14/97 3:55p John
320 * Made tiled tmapper not always be zbuffered.
322 * 58 3/13/97 9:09a Allender
323 * variable to allow trashing of the palette. kind of temporary code
324 * right now...checking needed for undefined references
326 * 57 3/12/97 2:51p John
327 * Added some test code for tmapper.
329 * 56 3/12/97 9:25a John
330 * fixed a bug with zbuffering. Reenabled it by default.
332 * 55 3/11/97 5:13p John
333 * made top up bitmaps work.
335 * 54 2/26/97 11:59a Allender
336 * comment out warning about display settings not being optimal
338 * 53 1/09/97 2:16p John
339 * took out the "Bing!" message
341 * 52 1/09/97 11:35a John
342 * Added some 2d functions to get/put screen images.
344 * 51 1/07/97 2:01p John
345 * Fairly fast zbuffering for object sorting.
347 * 50 1/06/97 2:44p John
348 * Added in slow (but correct) zbuffering
350 * 49 12/11/96 12:41p John
351 * Added new code to draw 3d laser using 2d ellipses.
353 * 48 12/03/96 5:42p John
354 * took out debug code.
356 * 47 12/03/96 5:42p John
357 * made gr_bitmap clip properly.
359 * 46 12/03/96 5:06p John
360 * Added code to draw our own cursor.
362 * 45 11/26/96 6:50p John
363 * Added some more hicolor primitives. Made windowed mode run as current
364 * bpp, if bpp is 8,16,or 32.
366 * 44 11/21/96 11:23a John
367 * fixed bug with previous.
369 * 43 11/21/96 11:21a John
370 * Made gr_get_string_size handle multi line text.
371 * Took out gr_get_multiline_string_size
373 * 42 11/21/96 11:06a John
376 * 41 11/20/96 10:01a Hoffoss
377 * A few minor improvements.
379 * 40 11/19/96 2:47p Allender
380 * add support for xparent bitmaps in 32bpp
382 * 39 11/18/96 4:46p Allender
383 * changed warning message about bit depth to appear when requested
384 * doesn't equal actual
386 * 38 11/18/96 4:35p Allender
387 * new 16bpp gradient functions
389 * 37 11/18/96 3:09p John
390 * made gr_clear always clear to black.
392 * 36 11/18/96 1:48p Allender
393 * added 16 bit version of shader
395 * 35 11/18/96 12:36p John
396 * Added code to dump screen to a PCX file.
398 * 34 11/18/96 11:40a John
399 * Added faster gr_set_color method.
401 * 33 11/15/96 11:26a John
402 * Added code to clip text to clipping region.
404 * 32 11/15/96 11:26a Allender
405 * fixed up 16 bbp version of gr_bitmap
407 * 31 11/14/96 9:11a John
408 * Fixed bug that didn't offset the gr_string text by the current clip
411 * 30 11/13/96 6:47p John
412 * Added gr_flip function.
414 * 29 11/13/96 10:10a John
415 * Increases MAX_WIDTH & HEIGHT for Jasen's massive 1600x1200 display.
417 * 28 11/07/96 6:19p John
418 * Added a bunch of 16bpp primitives so the game sort of runs in 16bpp
421 * 27 10/30/96 10:36a Lawrance
422 * added gr_diamond function
424 * 26 10/26/96 1:40p John
425 * Added some now primitives to the 2d library and
426 * cleaned up some old ones.
433 #include <windowsx.h>
442 #include "grinternal.h"
443 #include "systemvars.h"
447 // #include "amd3d.h"
449 // Includes for different rendering systems
455 #include "gropengl.h"
456 #include "grdirectdraw.h"
460 color_gun Gr_red, Gr_green, Gr_blue, Gr_alpha;
461 color_gun Gr_t_red, Gr_t_green, Gr_t_blue, Gr_t_alpha;
462 color_gun Gr_ta_red, Gr_ta_green, Gr_ta_blue, Gr_ta_alpha;
463 color_gun *Gr_current_red, *Gr_current_green, *Gr_current_blue, *Gr_current_alpha;
466 ubyte Gr_original_palette[768]; // The palette
467 ubyte Gr_current_palette[768];
468 char Gr_current_palette_name[128] = NOX("none");
472 int Web_cursor_bitmap = -1;
482 uint Gr_signature = 0;
484 float Gr_gamma = 1.8f;
485 int Gr_gamma_int = 180;
486 int Gr_gamma_lookup[256];
490 if ( !Gr_inited ) return;
494 switch( gr_screen.mode ) {
500 gr_directdraw_cleanup();
515 Int3(); // Invalid graphics mode
524 DCF(gr,"Changes graphics mode")
526 #ifndef HARDWARE_ONLY
527 int mode = gr_screen.mode;
530 dc_get_arg(ARG_STRING);
532 if ( !strcmp( Dc_arg, "a")) {
535 } else if ( !strcmp( Dc_arg, "b")) {
537 mode = GR_DIRECTDRAW;
538 } else if ( !strcmp( Dc_arg, "d")) {
540 } else if ( !strcmp( Dc_arg, "g")) {
544 } else if ( !strcmp( Dc_arg, "o")) {
548 // print usage, not stats
553 if ( mode != gr_screen.mode ) {
554 dc_printf( "Setting new video mode...\n" );
555 int errcode = gr_init( gr_screen.max_w, gr_screen.max_h, mode );
557 dc_printf( "Error %d. Graphics unchanged.\n", errcode );
564 dc_printf( "Usage: gr mode\n" );
565 dc_printf( "The options can be:\n" );
566 dc_printf( "Macros: A=software win32 window (obsolete)\n" );
567 dc_printf( " B=software directdraw fullscreen (obsolete)\n" );
568 dc_printf( " D=Direct3d\n" );
569 dc_printf( " G=Glide\n" );
570 dc_printf( " O=OpenGl (obsolete)\n" );
571 Dc_status = 0; // don't print status if help is printed. Too messy.
575 switch( gr_screen.mode ) {
578 dc_printf( "Win32 software windowed\n" );
582 dc_printf( "DirectDraw software windowed\n" );
585 dc_printf( "Direct3D\n" );
589 dc_printf( "3Dfx Glide\n" );
594 dc_printf( "OpenGl\n" );
597 Int3(); // Invalid graphics mode
604 // set screen clear color
605 DCF(clear_color, "set clear color r, g, b")
617 gr_set_clear_color(r, g, b);
620 void gr_set_palette_internal( char *name, ubyte * palette, int restrict_font_to_128 )
622 if ( palette == NULL ) {
623 // Create a default palette
629 for (b=0; b<6; b++ ) {
630 Gr_current_palette[i*3+0] = (unsigned char)(r*51);
631 Gr_current_palette[i*3+1] = (unsigned char)(g*51);
632 Gr_current_palette[i*3+2] = (unsigned char)(b*51);
635 for ( i=216;i<256; i++ ) {
636 Gr_current_palette[i*3+0] = (unsigned char)((i-216)*6);
637 Gr_current_palette[i*3+1] = (unsigned char)((i-216)*6);
638 Gr_current_palette[i*3+2] = (unsigned char)((i-216)*6);
640 memmove( Gr_original_palette, Gr_current_palette, 768 );
642 memmove( Gr_original_palette, palette, 768 );
643 memmove( Gr_current_palette, palette, 768 );
646 // mprintf(("Setting new palette\n" ));
649 if (gr_screen.gf_set_palette) {
650 (*gr_screen.gf_set_palette)(Gr_current_palette, restrict_font_to_128 );
652 // Since the palette set code might shuffle the palette,
653 // reload it into the source palette
655 memmove( palette, Gr_current_palette, 768 );
658 // Update Palette Manager tables
659 memmove( gr_palette, Gr_current_palette, 768 );
660 palette_update(name, restrict_font_to_128);
665 void gr_set_palette( char *name, ubyte * palette, int restrict_font_to_128 )
669 strcpy( Gr_current_palette_name, name );
670 p = strchr( Gr_current_palette_name, '.' );
672 gr_screen.signature = Gr_signature++;
673 gr_set_palette_internal( name, palette, restrict_font_to_128 );
679 #define CPUID _asm _emit 0fh _asm _emit 0a2h
681 // -----------------------------------------------------------------------
683 void gr_detect_cpu(int *cpu, int *mmx, int *amd3d, int *katmai )
698 memset( cpu_vender, 0, sizeof(cpu_vender) );
702 // Check for prescence of
708 pushfd // get extended flags
710 mov ebx, eax // save current flags
711 xor eax, 200000h // toggle bit 21
712 push eax // push new flags on stack
713 popfd // flags updated now in flags
714 pushfd // get extended flags
715 pop eax // store extended flags in eax
716 xor eax, ebx // if bit 21 r/w then eax <> 0
719 mov eax, 0 // setup CPUID to return vender id
720 CPUID // code bytes = 0fh, 0a2h
721 mov DWORD PTR cpu_vender[0], ebx
722 mov DWORD PTR cpu_vender[4], edx
723 mov DWORD PTR cpu_vender[8], ecx
725 mov eax, 1 // setup CPUID to return features
727 CPUID // code bytes = 0fh, 0a2h
729 mov RegEAX, eax // family, etc returned in eax
730 mov RegEDX, edx // features returned in edx
731 jmp done_checking_cpuid
735 mov RegEAX, 4<<8 // family, etc returned in eax
736 mov RegEDX, 0 // features returned in edx
748 //RegEAX . Bits 11:8 is family
749 *cpu = (RegEAX >>8) & 0xF;
752 *cpu = 4; // processor does not support CPUID
756 //RegEAX . Bits 11:8 is family
757 *cpu = (RegEAX >>8) & 0xF;
761 if (RegEDX & 0x800000) // bit 23 is set for MMX technology
764 __try { _asm emms } // try executing an MMX instruction "emms"
766 __except(EXCEPTION_EXECUTE_HANDLER) { retval = FALSE; }
772 *mmx = 1; // processor supports CPUID but does not support MMX technology
776 if (RegEDX & (1<<25) ) // bit 25 is set for Katmai technology
781 // Check for Amd 3dnow
783 if ( !stricmp( cpu_vender, NOX("AuthenticAMD")) ) {
786 mov eax, 0x80000000 // setup CPUID to return extended number of functions
788 CPUID // code bytes = 0fh, 0a2h
790 mov RegEAX, eax // highest extended function value
793 if ( RegEAX > 0x80000000 ) {
796 mov eax, 0x80000001 // setup CPUID to return extended flags
798 CPUID // code bytes = 0fh, 0a2h
800 mov RegEAX, eax // family, etc returned in eax
801 mov RegEDX, edx // flags in edx
804 if (RegEDX & 0x80000000) // bit 31 is set for AMD-3D technology
806 // try executing some 3Dnow instructions
809 float x = (float)1.25;
810 float y = (float)1.25;
816 PFMUL(AMD_M1, AMD_M2);
822 int should_be_156 = int(z*100);
824 if ( should_be_156 == 156 ) {
830 __except(EXCEPTION_EXECUTE_HANDLER) { }
839 // --------------------------------------------------------------------------
841 int gr_init(int res, int mode, int depth, int fred_x, int fred_y)
846 gr_detect_cpu(&Gr_cpu, &Gr_mmx, &Gr_amd3d, &Gr_katmai );
848 mprintf(( "GR_CPU: Family %d, MMX=%s\n", Gr_cpu, (Gr_mmx?"Yes":"No") ));
855 // If already inited, shutdown the previous graphics
857 switch( gr_screen.mode ) {
863 gr_directdraw_cleanup();
878 Int3(); // Invalid graphics mode
884 #if defined(HARDWARE_ONLY)
886 if(!Fred_running && !Pofview_running && !Nebedit_running && !Is_standalone){
887 if((mode != GR_GLIDE) && (mode != GR_DIRECT3D)){
888 mprintf(("Forcing glide startup!\n"));
900 if(!Fred_running && !Pofview_running){
901 // set resolution based on the res type
921 // Make w a multiple of 8
922 max_w = ( max_w / 8 )*8;
923 if ( max_w < 8 ) max_w = 8;
924 if ( max_h < 8 ) max_h = 8;
926 memset( &gr_screen, 0, sizeof(screen) );
928 gr_screen.signature = Gr_signature++;
929 gr_screen.mode = mode;
931 gr_screen.max_w = max_w;
932 gr_screen.max_h = max_h;
933 gr_screen.aspect = 1.0f; // Normal PC screen
934 gr_screen.offset_x = 0;
935 gr_screen.offset_y = 0;
936 gr_screen.clip_left = 0;
937 gr_screen.clip_top = 0;
938 gr_screen.clip_right = gr_screen.max_w - 1;
939 gr_screen.clip_bottom = gr_screen.max_h - 1;
940 gr_screen.clip_width = gr_screen.max_w;
941 gr_screen.clip_height = gr_screen.max_h;
943 switch( gr_screen.mode ) {
945 Assert(Fred_running || Pofview_running || Is_standalone || Nebedit_running);
950 gr_directdraw_init();
953 // we only care about possible 32 bit stuff here
954 Cmdline_force_32bit = 0;
956 Cmdline_force_32bit = 1;
961 // bad startup - stupid D3D
962 extern int D3D_inited;
970 // if we're in high-res. force polygon interface
972 if(gr_screen.res == GR_1024){
983 Int3(); // Invalid graphics mode
986 memmove( Gr_current_palette, Gr_original_palette, 768 );
987 gr_set_palette_internal(Gr_current_palette_name, Gr_current_palette,0);
989 gr_set_gamma(Gr_gamma);
991 if ( Gr_cursor == -1 ){
992 Gr_cursor = bm_load( "cursor" );
995 // load the web pointer cursor bitmap
996 if (Web_cursor_bitmap < 0) {
997 int nframes; // used to pass, not really needed (should be 1)
998 Web_cursor_bitmap = bm_load_animation("cursorweb", &nframes);
999 Assert(Web_cursor_bitmap >= 0); // if bitmap didnt load, thats not good (this is protected for in release tho)
1002 gr_set_color(0,0,0);
1004 gr_set_clear_color(0, 0, 0);
1006 // Call some initialization functions
1007 gr_set_shader(NULL);
1012 void gr_force_windowed()
1014 if ( !Gr_inited ) return;
1016 switch( gr_screen.mode ) {
1019 extern void gr_soft_force_windowed();
1020 gr_soft_force_windowed();
1026 extern void gr_directdraw_force_windowed();
1027 gr_directdraw_force_windowed();
1035 extern void gr_glide_force_windowed();
1036 gr_glide_force_windowed();
1045 Int3(); // Invalid graphics mode
1048 if ( Os_debugger_running )
1057 void gr_activate(int active)
1059 if ( !Gr_inited ) return;
1061 switch( gr_screen.mode ) {
1064 extern void gr_soft_activate(int active);
1065 gr_soft_activate(active);
1072 extern void gr_dd_activate(int active);
1073 gr_dd_activate(active);
1079 extern void gr_d3d_activate(int active);
1080 gr_d3d_activate(active);
1087 extern void gr_glide_activate(int active);
1088 gr_glide_activate(active);
1097 Int3(); // Invalid graphics mode
1102 // -----------------------------------------------------------------------
1103 // gr_set_cursor_bitmap()
1105 // Set the bitmap for the mouse pointer. This is called by the animating mouse
1108 // The lock parameter just locks basically disables the next call of this function that doesnt
1109 // have an unlock feature. If adding in more cursor-changing situations, be aware of
1110 // unexpected results. You have been warned.
1112 // TODO: investigate memory leak of original Gr_cursor bitmap when this is called
1113 void gr_set_cursor_bitmap(int n, int lock)
1115 static int locked = 0;
1118 if (!locked || (lock == GR_CURSOR_UNLOCK)) {
1124 if (lock == GR_CURSOR_LOCK) {
1129 // retrieves the current bitmap
1130 // used in UI_GADGET to save/restore current cursor state
1131 int gr_get_cursor_bitmap()
1137 int Gr_bitmap_poly = 0;
1140 Gr_bitmap_poly = !Gr_bitmap_poly;
1143 dc_printf("Using poly bitmaps\n");
1145 dc_printf("Using LFB bitmaps\n");
1149 // new bitmap functions
1150 void gr_bitmap(int x, int y)
1152 int section_x, section_y;
1156 // d3d and glide support texture poly shiz
1157 if(((gr_screen.mode == GR_DIRECT3D) || (gr_screen.mode == GR_GLIDE)) && Gr_bitmap_poly){
1159 // float u_scale, v_scale;
1160 bitmap_section_info *sections;
1162 // render all sections
1163 bm_get_info(gr_screen.current_bitmap, &w, &h, NULL, NULL, NULL, §ions);
1166 for(idx=0; idx<sections->num_y; idx++){
1168 for(s_idx=0; s_idx<sections->num_x; s_idx++){
1169 // get the section as a texture in vram
1170 gr_set_bitmap(gr_screen.current_bitmap, gr_screen.current_alphablend_mode, gr_screen.current_bitblt_mode, gr_screen.current_alpha, s_idx, idx);
1172 // determine the width and height of this section
1173 bm_get_section_size(gr_screen.current_bitmap, s_idx, idx, §ion_x, §ion_y);
1176 g3_draw_2d_poly_bitmap(x + x_line, y + y_line, section_x, section_y, TMAP_FLAG_BITMAP_SECTION);
1177 x_line += section_x;
1179 y_line += section_y;
1186 // old school bitmaps
1187 switch(gr_screen.mode){
1194 gr_d3d_bitmap(x, y);
1199 gr_glide_bitmap(x, y);
1204 gr_opengl_bitmap(x, y);
1209 void gr_bitmap_ex(int x, int y, int w, int h, int sx, int sy)
1211 switch(gr_screen.mode){
1214 grx_bitmap_ex(x, y, w, h, sx, sy);
1218 gr_d3d_bitmap_ex(x, y, w, h, sx, sy);
1223 gr_glide_bitmap_ex(x, y, w, h, sx, sy);
1228 gr_opengl_bitmap_ex(x, y, w, h, sx, sy);
1232 // given endpoints, and thickness, calculate coords of the endpoint
1233 void gr_pline_helper(vector *out, vector *in1, vector *in2, int thickness)
1237 // slope of the line
1238 if(vm_vec_same(in1, in2)){
1239 slope = vmd_zero_vector;
1241 vm_vec_sub(&slope, in2, in1);
1242 float temp = -slope.x;
1245 vm_vec_normalize(&slope);
1249 vm_vec_scale_add(out, in1, &slope, (float)thickness);
1252 // special function for drawing polylines. this function is specifically intended for
1253 // polylines where each section is no more than 90 degrees away from a previous section.
1254 // Moreover, it is _really_ intended for use with 45 degree angles.
1255 void gr_pline_special(vector **pts, int num_pts, int thickness)
1257 vector s1, s2, e1, e2, dir;
1258 vector last_e1, last_e2;
1260 vertex *verts[4] = {&v[0], &v[1], &v[2], &v[3]};
1261 int saved_zbuffer_mode, idx;
1262 int started_frame = 0;
1266 // if we have less than 2 pts, bail
1271 extern int G3_count;
1277 // turn off zbuffering
1278 saved_zbuffer_mode = gr_zbuffer_get();
1279 gr_zbuffer_set(GR_ZBUFF_NONE);
1284 // draw each section
1285 last_e1 = vmd_zero_vector;
1286 last_e2 = vmd_zero_vector;
1287 for(idx=0; idx<num_pts-1; idx++){
1288 // get the start and endpoints
1289 s1 = *pts[idx]; // start 1 (on the line)
1290 gr_pline_helper(&s2, pts[idx], pts[idx+1], thickness); // start 2
1291 e1 = *pts[idx+1]; // end 1 (on the line)
1292 vm_vec_sub(&dir, pts[idx+1], pts[idx]);
1293 vm_vec_add(&e2, &s2, &dir); // end 2
1296 v[0].sx = (float)ceil(s1.x);
1297 v[0].sy = (float)ceil(s1.y);
1301 v[0].flags = PF_PROJECTED;
1303 v[0].r = gr_screen.current_color.red;
1304 v[0].g = gr_screen.current_color.green;
1305 v[0].b = gr_screen.current_color.blue;
1307 v[1].sx = (float)ceil(s2.x);
1308 v[1].sy = (float)ceil(s2.y);
1312 v[1].flags = PF_PROJECTED;
1314 v[1].r = gr_screen.current_color.red;
1315 v[1].g = gr_screen.current_color.green;
1316 v[1].b = gr_screen.current_color.blue;
1318 v[2].sx = (float)ceil(e2.x);
1319 v[2].sy = (float)ceil(e2.y);
1323 v[2].flags = PF_PROJECTED;
1325 v[2].r = gr_screen.current_color.red;
1326 v[2].g = gr_screen.current_color.green;
1327 v[2].b = gr_screen.current_color.blue;
1329 v[3].sx = (float)ceil(e1.x);
1330 v[3].sy = (float)ceil(e1.y);
1334 v[3].flags = PF_PROJECTED;
1336 v[3].r = gr_screen.current_color.red;
1337 v[3].g = gr_screen.current_color.green;
1338 v[3].b = gr_screen.current_color.blue;
1341 g3_draw_poly_constant_sw(4, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB, 0.1f);
1343 // if we're past the first section, draw a "patch" triangle to fill any gaps
1346 v[0].sx = (float)ceil(s1.x);
1347 v[0].sy = (float)ceil(s1.y);
1351 v[0].flags = PF_PROJECTED;
1353 v[0].r = gr_screen.current_color.red;
1354 v[0].g = gr_screen.current_color.green;
1355 v[0].b = gr_screen.current_color.blue;
1357 v[1].sx = (float)ceil(s2.x);
1358 v[1].sy = (float)ceil(s2.y);
1362 v[1].flags = PF_PROJECTED;
1364 v[1].r = gr_screen.current_color.red;
1365 v[1].g = gr_screen.current_color.green;
1366 v[1].b = gr_screen.current_color.blue;
1369 v[2].sx = (float)ceil(last_e2.x);
1370 v[2].sy = (float)ceil(last_e2.y);
1374 v[2].flags = PF_PROJECTED;
1376 v[2].r = gr_screen.current_color.red;
1377 v[2].g = gr_screen.current_color.green;
1378 v[2].b = gr_screen.current_color.blue;
1380 g3_draw_poly_constant_sw(3, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB, 0.1f);
1383 // store our endpoints
1392 // restore zbuffer mode
1393 gr_zbuffer_set(saved_zbuffer_mode);