2 * Copyright (C) Volition, Inc. 1999. All rights reserved.
4 * All source code herein is the property of Volition, Inc. You may not sell
5 * or otherwise commercially exploit the source or things you created based on
10 * $Logfile: /Freespace2/code/Graphics/2d.cpp $
15 * Main file for 2d primitives.
18 * Revision 1.9 2002/06/09 04:41:17 relnev
19 * added copyright header
21 * Revision 1.8 2002/06/05 04:03:32 relnev
22 * finished cfilesystem.
24 * removed some old code.
26 * fixed mouse save off-by-one.
30 * Revision 1.7 2002/05/30 21:44:48 relnev
31 * implemented some missing texture stuff.
33 * enable bitmap polys for opengl.
35 * work around greenness in bitmaps.
37 * Revision 1.6 2002/05/28 21:36:10 relnev
38 * some more timer junk.
40 * tried to fix software mode.
42 * Revision 1.5 2002/05/28 04:18:08 theoddone33
43 * Fix some stuff and add -DFS2_DEMO
45 * Revision 1.4 2002/05/27 22:43:02 theoddone33
46 * Fix more glide symbols
48 * Revision 1.3 2002/05/27 22:39:21 theoddone33
49 * Remove glide symbols
51 * Revision 1.2 2002/05/07 03:16:45 theoddone33
52 * The Great Newline Fix
54 * Revision 1.1.1.1 2002/05/03 03:28:09 root
58 * 25 8/20/99 2:09p Dave
61 * 24 8/16/99 9:45a Jefff
62 * changes to cursor management to allow a 2nd temporary cursor
64 * 23 7/27/99 3:52p Dave
65 * Make star drawing a bit more robust to help lame D3D cards.
67 * 22 7/18/99 12:32p Dave
68 * Randomly oriented shockwaves.
70 * 21 7/15/99 3:07p Dave
71 * 32 bit detection support. Mouse coord commandline.
73 * 20 7/14/99 9:42a Dave
74 * Put in clear_color debug function. Put in base for 3dnow stuff / P3
77 * 19 7/13/99 1:15p Dave
78 * 32 bit support. Whee!
80 * 18 7/12/99 11:42a Jefff
81 * Made rectangle drawing smarter in D3D. Made plines draw properly on Ati
84 * 17 7/09/99 9:51a Dave
85 * Added thick polyline code.
87 * 16 7/02/99 3:05p Anoop
88 * Oops. Fixed g3_draw_2d_poly() so that it properly handles poly bitmap
89 * and LFB bitmap calls.
91 * 15 6/29/99 10:35a Dave
92 * Interface polygon bitmaps! Whee!
94 * 14 4/09/99 2:21p Dave
95 * Multiplayer beta stuff. CD checking.
97 * 13 2/03/99 11:44a Dave
98 * Fixed d3d transparent textures.
100 * 12 1/29/99 12:47a Dave
101 * Put in sounds for beam weapon. A bunch of interface screens (tech
104 * 11 1/15/99 11:29a Neilk
105 * Fixed D3D screen/texture pixel formatting problem.
107 * 10 1/08/99 2:08p Dave
108 * Fixed software rendering for pofview. Super early support for AWACS and
111 * 9 1/06/99 2:24p Dave
112 * Stubs and release build fixes.
114 * 8 12/18/98 1:49a Dave
115 * Fixed Fred initialization problem resulting from hi-res mode changes.
117 * 7 12/18/98 1:13a Dave
118 * Rough 1024x768 support for Direct3D. Proper detection and usage through
121 * 6 12/01/98 10:32a Johnson
122 * Fixed direct3d font problems. Fixed sun bitmap problem. Fixed direct3d
125 * 5 11/30/98 5:31p Dave
126 * Fixed up Fred support for software mode.
128 * 4 11/30/98 1:07p Dave
129 * 16 bit conversion, first run.
131 * 3 11/11/98 5:37p Dave
132 * Checkin for multiplayer testing.
134 * 2 10/07/98 10:52a Dave
137 * 1 10/07/98 10:48a Dave
139 * 122 6/13/98 3:18p Hoffoss
140 * NOX()ed out a bunch of strings that shouldn't be translated.
142 * 121 5/23/98 11:26a Hoffoss
143 * Fixed bug where optimized code used EDX and my code trashed it.
145 * 120 5/22/98 11:09p John
146 * put in code to hopefull not crash cyrix cpus
148 * 119 5/20/98 9:45p John
149 * added code so the places in code that change half the palette don't
150 * have to clear the screen.
152 * 118 5/20/98 12:59p Hoffoss
153 * Changed temporary crossfade code to just pop the image again.
155 * 117 5/16/98 1:18p John
156 * Made softtware DirectDraw reset palette after Alt+TAB.
158 * 116 5/14/98 5:42p John
159 * Revamped the whole window position/mouse code for the graphics windows.
161 * 115 5/08/98 10:49a John
162 * Made 'gr d' go into direct3d mode.
164 * 114 5/06/98 11:21p John
165 * Fixed a bitmap bug with Direct3D. Started adding new caching code into
168 * 113 4/21/98 9:28a John
169 * Added stub for cross-fade.
171 * 112 4/10/98 5:20p John
172 * Changed RGB in lighting structure to be ubytes. Removed old
173 * not-necessary 24 bpp software stuff.
175 * 111 4/06/98 12:55p John
176 * Upped the gamma for Fred.
178 * 110 3/25/98 8:07p John
179 * Restructured software rendering into two modules; One for windowed
180 * debug mode and one for DirectX fullscreen.
182 * 109 3/24/98 3:58p John
183 * Put in (hopefully) final gamma setting code.
185 * 108 3/10/98 4:18p John
186 * Cleaned up graphics lib. Took out most unused gr functions. Made D3D
187 * & Glide have popups and print screen. Took out all >8bpp software
188 * support. Made Fred zbuffer. Made zbuffer allocate dynamically to
189 * support Fred. Made zbuffering key off of functions rather than one
192 * 107 2/25/98 2:37p John
193 * Made afterburner shake 2x less noticable. Made 'gr a' leave Glide mode
194 * properly. Made model_caching never work in hardware mode.
196 * 106 2/23/98 2:27p John
197 * Made int3,asserts, etc pass video through.
199 * 105 2/20/98 3:13p John
200 * Made popup save code print an error an exit out if 3d accelerated.
202 * 104 2/19/98 6:13p John
203 * Made Glide do texturing & zbuffering.
205 * 103 1/26/98 5:12p John
206 * Added in code for Pentium Pro specific optimizations. Speed up
207 * zbuffered correct tmapper about 35%. Speed up non-zbuffered scalers
210 * 102 1/14/98 11:39a Dave
211 * Polished up a bunch of popup support items.
213 * 101 1/10/98 1:14p John
214 * Added explanation to debug console commands
216 * 100 12/21/97 4:33p John
217 * Made debug console functions a class that registers itself
218 * automatically, so you don't need to add the function to
219 * debugfunctions.cpp.
221 * 99 12/04/97 12:09p John
222 * Made glows use scaler instead of tmapper so they don't rotate. Had to
223 * add a zbuffered scaler.
225 * 98 12/03/97 10:47a John
226 * added functions to save/restore entire screens.
228 * 97 12/02/97 3:59p John
229 * Added first rev of thruster glow, along with variable levels of
230 * translucency, which retquired some restructing of palman.
232 * 96 11/30/97 12:18p John
233 * added more 24 & 32-bpp primitives
235 * 95 11/24/97 11:20a John
238 * 94 11/14/97 3:54p John
239 * Added triple buffering.
241 * 93 11/14/97 12:30p John
242 * Fixed some DirectX bugs. Moved the 8-16 xlat tables into Graphics
243 * libs. Made 16-bpp DirectX modes know what bitmap format they're in.
245 * 92 10/09/97 5:23p John
246 * Added support for more 16-bpp functions
248 * 91 9/20/97 8:16a John
249 * Made .clr files go into the Cache directory. Replaced cfopen(name,NULL)
250 * to delete a file with cf_delete.
252 * 90 9/09/97 11:01a Sandeep
253 * fixed warning level 4 bugs
255 * 89 9/07/97 10:01p Lawrance
256 * add in support for animating mouse pointer
258 * 88 9/03/97 4:32p John
259 * changed bmpman to only accept ani and pcx's. made passing .pcx or .ani
260 * to bm_load functions not needed. Made bmpman keep track of palettes
261 * for bitmaps not mapped into game palettes.
263 * 87 8/20/97 4:19p John
264 * added delay to hopefully fix mike's problems when getting int3's in
267 * 86 7/16/97 3:07p John
269 * 85 6/18/97 12:07p John
270 * fixed some color bugs
272 * 84 6/17/97 7:04p John
273 * added d3d support for gradients.
274 * fixed some color bugs by adding screen signatures instead of watching
275 * flags and palette changes.
277 * 83 6/17/97 12:03p John
278 * Moved color/alphacolor functions into their own module. Made all color
279 * functions be part of the low-level graphics drivers, not just the
282 * 82 6/12/97 5:04p John
283 * Initial rev of Glide support
285 * 81 6/11/97 5:49p John
286 * Changed palette code to only recalculate alphacolors when needed, not
287 * when palette changes.
289 * 80 6/11/97 1:12p John
290 * Started fixing all the text colors in the game.
292 * 79 6/06/97 5:03p John
293 * fixed bug withalpha colors failing after gr_init
295 * 78 6/06/97 4:53p John
296 * made gr_init not bash current color
298 * 77 6/05/97 4:53p John
299 * First rev of new antialiased font stuff.
301 * 76 5/20/97 10:36a John
302 * Fixed problem with user bitmaps and direct3d caching.
304 * 75 5/16/97 9:11a John
305 * fixed bug that made Ctrl+Break in fullscreen hang
307 * 74 5/14/97 4:38p John
308 * Fixed print_screen bug.
310 * 73 5/14/97 2:10p John
311 * added rudimentary support for windowed direct3d.
313 * 72 5/14/97 10:53a John
314 * fixed some discrepencies between d3d and software palette setting.
316 * 71 5/13/97 4:39p John
317 * Added console function to set graphics modes.
319 * 70 5/13/97 12:39p John
320 * Got fullscreen mode working.
322 * 69 5/12/97 12:27p John
323 * Restructured Graphics Library to add support for multiple renderers.
325 * 68 5/07/97 2:59p John
326 * Initial rev of D3D texturing.
328 * 67 5/01/97 3:32p John
329 * oops... forced 2d to always be in 8bpp,
331 * 66 5/01/97 3:23p John
332 * first hooks for some direct 3d setup stuff.
334 * 65 4/28/97 5:33p John
335 * fixed a newly introduced bug with fullscreen toggle.
337 * 64 4/28/97 4:46p John
339 * 63 4/22/97 12:20p John
340 * fixed more resource leaks
342 * 62 4/22/97 10:33a John
343 * fixed the 2d resource leaks that Alan found.
345 * 61 3/31/97 9:45a Allender
346 * start of new font stuff
348 * 60 3/26/97 10:52a Lawrance
349 * mouse always on in menus, disappears in gameplay after 1 second
351 * 59 3/14/97 3:55p John
352 * Made tiled tmapper not always be zbuffered.
354 * 58 3/13/97 9:09a Allender
355 * variable to allow trashing of the palette. kind of temporary code
356 * right now...checking needed for undefined references
358 * 57 3/12/97 2:51p John
359 * Added some test code for tmapper.
361 * 56 3/12/97 9:25a John
362 * fixed a bug with zbuffering. Reenabled it by default.
364 * 55 3/11/97 5:13p John
365 * made top up bitmaps work.
367 * 54 2/26/97 11:59a Allender
368 * comment out warning about display settings not being optimal
370 * 53 1/09/97 2:16p John
371 * took out the "Bing!" message
373 * 52 1/09/97 11:35a John
374 * Added some 2d functions to get/put screen images.
376 * 51 1/07/97 2:01p John
377 * Fairly fast zbuffering for object sorting.
379 * 50 1/06/97 2:44p John
380 * Added in slow (but correct) zbuffering
382 * 49 12/11/96 12:41p John
383 * Added new code to draw 3d laser using 2d ellipses.
385 * 48 12/03/96 5:42p John
386 * took out debug code.
388 * 47 12/03/96 5:42p John
389 * made gr_bitmap clip properly.
391 * 46 12/03/96 5:06p John
392 * Added code to draw our own cursor.
394 * 45 11/26/96 6:50p John
395 * Added some more hicolor primitives. Made windowed mode run as current
396 * bpp, if bpp is 8,16,or 32.
398 * 44 11/21/96 11:23a John
399 * fixed bug with previous.
401 * 43 11/21/96 11:21a John
402 * Made gr_get_string_size handle multi line text.
403 * Took out gr_get_multiline_string_size
405 * 42 11/21/96 11:06a John
408 * 41 11/20/96 10:01a Hoffoss
409 * A few minor improvements.
411 * 40 11/19/96 2:47p Allender
412 * add support for xparent bitmaps in 32bpp
414 * 39 11/18/96 4:46p Allender
415 * changed warning message about bit depth to appear when requested
416 * doesn't equal actual
418 * 38 11/18/96 4:35p Allender
419 * new 16bpp gradient functions
421 * 37 11/18/96 3:09p John
422 * made gr_clear always clear to black.
424 * 36 11/18/96 1:48p Allender
425 * added 16 bit version of shader
427 * 35 11/18/96 12:36p John
428 * Added code to dump screen to a PCX file.
430 * 34 11/18/96 11:40a John
431 * Added faster gr_set_color method.
433 * 33 11/15/96 11:26a John
434 * Added code to clip text to clipping region.
436 * 32 11/15/96 11:26a Allender
437 * fixed up 16 bbp version of gr_bitmap
439 * 31 11/14/96 9:11a John
440 * Fixed bug that didn't offset the gr_string text by the current clip
443 * 30 11/13/96 6:47p John
444 * Added gr_flip function.
446 * 29 11/13/96 10:10a John
447 * Increases MAX_WIDTH & HEIGHT for Jasen's massive 1600x1200 display.
449 * 28 11/07/96 6:19p John
450 * Added a bunch of 16bpp primitives so the game sort of runs in 16bpp
453 * 27 10/30/96 10:36a Lawrance
454 * added gr_diamond function
456 * 26 10/26/96 1:40p John
457 * Added some now primitives to the 2d library and
458 * cleaned up some old ones.
465 #include <windowsx.h>
474 #include "grinternal.h"
475 #include "systemvars.h"
479 // #include "amd3d.h"
481 // Includes for different rendering systems
487 #include "gropengl.h"
488 #include "grdirectdraw.h"
492 color_gun Gr_red, Gr_green, Gr_blue, Gr_alpha;
493 color_gun Gr_t_red, Gr_t_green, Gr_t_blue, Gr_t_alpha;
494 color_gun Gr_ta_red, Gr_ta_green, Gr_ta_blue, Gr_ta_alpha;
495 color_gun *Gr_current_red, *Gr_current_green, *Gr_current_blue, *Gr_current_alpha;
498 ubyte Gr_original_palette[768]; // The palette
499 ubyte Gr_current_palette[768];
500 char Gr_current_palette_name[128] = NOX("none");
504 int Web_cursor_bitmap = -1;
514 uint Gr_signature = 0;
516 float Gr_gamma = 1.8f;
517 int Gr_gamma_int = 180;
518 int Gr_gamma_lookup[256];
522 if ( !Gr_inited ) return;
526 switch( gr_screen.mode ) {
533 gr_directdraw_cleanup();
546 Int3(); // Invalid graphics mode
555 DCF(gr,"Changes graphics mode")
557 #ifndef HARDWARE_ONLY
558 int mode = gr_screen.mode;
561 dc_get_arg(ARG_STRING);
563 if ( !strcmp( Dc_arg, "a")) {
566 } else if ( !strcmp( Dc_arg, "b")) {
568 mode = GR_DIRECTDRAW;
569 } else if ( !strcmp( Dc_arg, "d")) {
571 } else if ( !strcmp( Dc_arg, "g")) {
575 } else if ( !strcmp( Dc_arg, "o")) {
578 // print usage, not stats
583 if ( mode != gr_screen.mode ) {
584 dc_printf( "Setting new video mode...\n" );
585 int errcode = gr_init( gr_screen.max_w, gr_screen.max_h, mode );
587 dc_printf( "Error %d. Graphics unchanged.\n", errcode );
594 dc_printf( "Usage: gr mode\n" );
595 dc_printf( "The options can be:\n" );
596 dc_printf( "Macros: A=software win32 window (obsolete)\n" );
597 dc_printf( " B=software directdraw fullscreen (obsolete)\n" );
598 dc_printf( " D=Direct3d\n" );
599 dc_printf( " G=Glide\n" );
600 dc_printf( " O=OpenGl (obsolete)\n" );
601 Dc_status = 0; // don't print status if help is printed. Too messy.
605 switch( gr_screen.mode ) {
608 dc_printf( "Win32 software windowed\n" );
612 dc_printf( "DirectDraw software windowed\n" );
615 dc_printf( "Direct3D\n" );
619 dc_printf( "3Dfx Glide\n" );
623 dc_printf( "OpenGl\n" );
626 Int3(); // Invalid graphics mode
633 // set screen clear color
634 DCF(clear_color, "set clear color r, g, b")
646 gr_set_clear_color(r, g, b);
649 void gr_set_palette_internal( char *name, ubyte * palette, int restrict_font_to_128 )
651 if ( palette == NULL ) {
652 // Create a default palette
658 for (b=0; b<6; b++ ) {
659 Gr_current_palette[i*3+0] = (unsigned char)(r*51);
660 Gr_current_palette[i*3+1] = (unsigned char)(g*51);
661 Gr_current_palette[i*3+2] = (unsigned char)(b*51);
664 for ( i=216;i<256; i++ ) {
665 Gr_current_palette[i*3+0] = (unsigned char)((i-216)*6);
666 Gr_current_palette[i*3+1] = (unsigned char)((i-216)*6);
667 Gr_current_palette[i*3+2] = (unsigned char)((i-216)*6);
669 memmove( Gr_original_palette, Gr_current_palette, 768 );
671 memmove( Gr_original_palette, palette, 768 );
672 memmove( Gr_current_palette, palette, 768 );
675 // mprintf(("Setting new palette\n" ));
678 if (gr_screen.gf_set_palette) {
679 (*gr_screen.gf_set_palette)(Gr_current_palette, restrict_font_to_128 );
681 // Since the palette set code might shuffle the palette,
682 // reload it into the source palette
684 memmove( palette, Gr_current_palette, 768 );
687 // Update Palette Manager tables
688 memmove( gr_palette, Gr_current_palette, 768 );
689 palette_update(name, restrict_font_to_128);
694 void gr_set_palette( char *name, ubyte * palette, int restrict_font_to_128 )
698 strcpy( Gr_current_palette_name, name );
699 p = strchr( Gr_current_palette_name, '.' );
701 gr_screen.signature = Gr_signature++;
702 gr_set_palette_internal( name, palette, restrict_font_to_128 );
708 #define CPUID _asm _emit 0fh _asm _emit 0a2h
710 // -----------------------------------------------------------------------
712 void gr_detect_cpu(int *cpu, int *mmx, int *amd3d, int *katmai )
727 memset( cpu_vender, 0, sizeof(cpu_vender) );
731 // Check for prescence of
737 pushfd // get extended flags
739 mov ebx, eax // save current flags
740 xor eax, 200000h // toggle bit 21
741 push eax // push new flags on stack
742 popfd // flags updated now in flags
743 pushfd // get extended flags
744 pop eax // store extended flags in eax
745 xor eax, ebx // if bit 21 r/w then eax <> 0
748 mov eax, 0 // setup CPUID to return vender id
749 CPUID // code bytes = 0fh, 0a2h
750 mov DWORD PTR cpu_vender[0], ebx
751 mov DWORD PTR cpu_vender[4], edx
752 mov DWORD PTR cpu_vender[8], ecx
754 mov eax, 1 // setup CPUID to return features
756 CPUID // code bytes = 0fh, 0a2h
758 mov RegEAX, eax // family, etc returned in eax
759 mov RegEDX, edx // features returned in edx
760 jmp done_checking_cpuid
764 mov RegEAX, 4<<8 // family, etc returned in eax
765 mov RegEDX, 0 // features returned in edx
777 //RegEAX . Bits 11:8 is family
778 *cpu = (RegEAX >>8) & 0xF;
781 *cpu = 4; // processor does not support CPUID
785 //RegEAX . Bits 11:8 is family
786 *cpu = (RegEAX >>8) & 0xF;
790 if (RegEDX & 0x800000) // bit 23 is set for MMX technology
793 __try { _asm emms } // try executing an MMX instruction "emms"
795 __except(EXCEPTION_EXECUTE_HANDLER) { retval = FALSE; }
801 *mmx = 1; // processor supports CPUID but does not support MMX technology
805 if (RegEDX & (1<<25) ) // bit 25 is set for Katmai technology
810 // Check for Amd 3dnow
812 if ( !stricmp( cpu_vender, NOX("AuthenticAMD")) ) {
815 mov eax, 0x80000000 // setup CPUID to return extended number of functions
817 CPUID // code bytes = 0fh, 0a2h
819 mov RegEAX, eax // highest extended function value
822 if ( RegEAX > 0x80000000 ) {
825 mov eax, 0x80000001 // setup CPUID to return extended flags
827 CPUID // code bytes = 0fh, 0a2h
829 mov RegEAX, eax // family, etc returned in eax
830 mov RegEDX, edx // flags in edx
833 if (RegEDX & 0x80000000) // bit 31 is set for AMD-3D technology
835 // try executing some 3Dnow instructions
838 float x = (float)1.25;
839 float y = (float)1.25;
845 PFMUL(AMD_M1, AMD_M2);
851 int should_be_156 = int(z*100);
853 if ( should_be_156 == 156 ) {
859 __except(EXCEPTION_EXECUTE_HANDLER) { }
868 // --------------------------------------------------------------------------
870 int gr_init(int res, int mode, int depth, int fred_x, int fred_y)
875 gr_detect_cpu(&Gr_cpu, &Gr_mmx, &Gr_amd3d, &Gr_katmai );
877 mprintf(( "GR_CPU: Family %d, MMX=%s\n", Gr_cpu, (Gr_mmx?"Yes":"No") ));
884 // If already inited, shutdown the previous graphics
886 switch( gr_screen.mode ) {
893 gr_directdraw_cleanup();
906 Int3(); // Invalid graphics mode
912 #if defined(HARDWARE_ONLY)
914 if(!Fred_running && !Pofview_running && !Nebedit_running && !Is_standalone){
915 if((mode != GR_GLIDE) && (mode != GR_DIRECT3D) && (mode != GR_OPENGL)){
916 mprintf(("Forcing glide startup!\n"));
928 if(!Fred_running && !Pofview_running){
929 // set resolution based on the res type
949 // Make w a multiple of 8
950 max_w = ( max_w / 8 )*8;
951 if ( max_w < 8 ) max_w = 8;
952 if ( max_h < 8 ) max_h = 8;
954 memset( &gr_screen, 0, sizeof(screen) );
956 gr_screen.signature = Gr_signature++;
957 gr_screen.mode = mode;
959 gr_screen.max_w = max_w;
960 gr_screen.max_h = max_h;
961 gr_screen.aspect = 1.0f; // Normal PC screen
962 gr_screen.offset_x = 0;
963 gr_screen.offset_y = 0;
964 gr_screen.clip_left = 0;
965 gr_screen.clip_top = 0;
966 gr_screen.clip_right = gr_screen.max_w - 1;
967 gr_screen.clip_bottom = gr_screen.max_h - 1;
968 gr_screen.clip_width = gr_screen.max_w;
969 gr_screen.clip_height = gr_screen.max_h;
971 switch( gr_screen.mode ) {
973 Assert(Fred_running || Pofview_running || Is_standalone || Nebedit_running);
979 gr_directdraw_init();
982 // we only care about possible 32 bit stuff here
983 Cmdline_force_32bit = 0;
985 Cmdline_force_32bit = 1;
990 // bad startup - stupid D3D
991 extern int D3D_inited;
999 // if we're in high-res. force polygon interface
1000 if(gr_screen.res == GR_1024){
1010 Int3(); // Invalid graphics mode
1013 memmove( Gr_current_palette, Gr_original_palette, 768 );
1014 gr_set_palette_internal(Gr_current_palette_name, Gr_current_palette,0);
1016 gr_set_gamma(Gr_gamma);
1018 if ( Gr_cursor == -1 ){
1019 Gr_cursor = bm_load( "cursor" );
1022 // load the web pointer cursor bitmap
1023 if (Web_cursor_bitmap < 0) {
1024 int nframes; // used to pass, not really needed (should be 1)
1025 Web_cursor_bitmap = bm_load_animation("cursorweb", &nframes);
1026 Assert(Web_cursor_bitmap >= 0); // if bitmap didnt load, thats not good (this is protected for in release tho)
1029 gr_set_color(0,0,0);
1031 gr_set_clear_color(0, 0, 0);
1033 // Call some initialization functions
1034 gr_set_shader(NULL);
1039 void gr_force_windowed()
1041 if ( !Gr_inited ) return;
1043 switch( gr_screen.mode ) {
1046 extern void gr_soft_force_windowed();
1047 gr_soft_force_windowed();
1054 extern void gr_directdraw_force_windowed();
1055 gr_directdraw_force_windowed();
1062 extern void gr_glide_force_windowed();
1063 gr_glide_force_windowed();
1070 Int3(); // Invalid graphics mode
1073 if ( Os_debugger_running )
1077 void gr_activate(int active)
1079 if ( !Gr_inited ) return;
1081 switch( gr_screen.mode ) {
1084 extern void gr_soft_activate(int active);
1085 gr_soft_activate(active);
1093 extern void gr_dd_activate(int active);
1094 gr_dd_activate(active);
1100 extern void gr_d3d_activate(int active);
1101 gr_d3d_activate(active);
1107 extern void gr_glide_activate(int active);
1108 gr_glide_activate(active);
1115 extern void gr_opengl_activate(int active);
1116 gr_opengl_activate(active);
1121 Int3(); // Invalid graphics mode
1126 // -----------------------------------------------------------------------
1127 // gr_set_cursor_bitmap()
1129 // Set the bitmap for the mouse pointer. This is called by the animating mouse
1132 // The lock parameter just locks basically disables the next call of this function that doesnt
1133 // have an unlock feature. If adding in more cursor-changing situations, be aware of
1134 // unexpected results. You have been warned.
1136 // TODO: investigate memory leak of original Gr_cursor bitmap when this is called
1137 void gr_set_cursor_bitmap(int n, int lock)
1139 static int locked = 0;
1142 if (!locked || (lock == GR_CURSOR_UNLOCK)) {
1148 if (lock == GR_CURSOR_LOCK) {
1153 // retrieves the current bitmap
1154 // used in UI_GADGET to save/restore current cursor state
1155 int gr_get_cursor_bitmap()
1161 int Gr_bitmap_poly = 0;
1164 Gr_bitmap_poly = !Gr_bitmap_poly;
1167 dc_printf("Using poly bitmaps\n");
1169 dc_printf("Using LFB bitmaps\n");
1173 // new bitmap functions
1174 void gr_bitmap(int x, int y)
1176 int section_x, section_y;
1180 // d3d and glide support texture poly shiz
1181 if(((gr_screen.mode == GR_DIRECT3D) || (gr_screen.mode == GR_GLIDE) || (gr_screen.mode == GR_OPENGL)) && Gr_bitmap_poly){
1183 // float u_scale, v_scale;
1184 bitmap_section_info *sections;
1186 // render all sections
1187 bm_get_info(gr_screen.current_bitmap, &w, &h, NULL, NULL, NULL, §ions);
1190 for(idx=0; idx<sections->num_y; idx++){
1192 for(s_idx=0; s_idx<sections->num_x; s_idx++){
1193 // get the section as a texture in vram
1194 gr_set_bitmap(gr_screen.current_bitmap, gr_screen.current_alphablend_mode, gr_screen.current_bitblt_mode, gr_screen.current_alpha, s_idx, idx);
1196 // determine the width and height of this section
1197 bm_get_section_size(gr_screen.current_bitmap, s_idx, idx, §ion_x, §ion_y);
1200 g3_draw_2d_poly_bitmap(x + x_line, y + y_line, section_x, section_y, TMAP_FLAG_BITMAP_SECTION);
1201 x_line += section_x;
1203 y_line += section_y;
1210 // old school bitmaps
1211 switch(gr_screen.mode){
1219 gr_d3d_bitmap(x, y);
1223 gr_glide_bitmap(x, y);
1226 /* don't want opengl bitmap to be called -- slow! */
1228 // gr_opengl_bitmap(x, y);
1235 void gr_bitmap_ex(int x, int y, int w, int h, int sx, int sy)
1237 switch(gr_screen.mode){
1240 grx_bitmap_ex(x, y, w, h, sx, sy);
1244 gr_d3d_bitmap_ex(x, y, w, h, sx, sy);
1248 gr_glide_bitmap_ex(x, y, w, h, sx, sy);
1253 // gr_opengl_bitmap_ex(x, y, w, h, sx, sy);
1261 // given endpoints, and thickness, calculate coords of the endpoint
1262 void gr_pline_helper(vector *out, vector *in1, vector *in2, int thickness)
1266 // slope of the line
1267 if(vm_vec_same(in1, in2)){
1268 slope = vmd_zero_vector;
1270 vm_vec_sub(&slope, in2, in1);
1271 float temp = -slope.x;
1274 vm_vec_normalize(&slope);
1278 vm_vec_scale_add(out, in1, &slope, (float)thickness);
1281 // special function for drawing polylines. this function is specifically intended for
1282 // polylines where each section is no more than 90 degrees away from a previous section.
1283 // Moreover, it is _really_ intended for use with 45 degree angles.
1284 void gr_pline_special(vector **pts, int num_pts, int thickness)
1286 vector s1, s2, e1, e2, dir;
1287 vector last_e1, last_e2;
1289 vertex *verts[4] = {&v[0], &v[1], &v[2], &v[3]};
1290 int saved_zbuffer_mode, idx;
1291 int started_frame = 0;
1295 // if we have less than 2 pts, bail
1300 extern int G3_count;
1306 // turn off zbuffering
1307 saved_zbuffer_mode = gr_zbuffer_get();
1308 gr_zbuffer_set(GR_ZBUFF_NONE);
1313 // draw each section
1314 last_e1 = vmd_zero_vector;
1315 last_e2 = vmd_zero_vector;
1316 for(idx=0; idx<num_pts-1; idx++){
1317 // get the start and endpoints
1318 s1 = *pts[idx]; // start 1 (on the line)
1319 gr_pline_helper(&s2, pts[idx], pts[idx+1], thickness); // start 2
1320 e1 = *pts[idx+1]; // end 1 (on the line)
1321 vm_vec_sub(&dir, pts[idx+1], pts[idx]);
1322 vm_vec_add(&e2, &s2, &dir); // end 2
1325 v[0].sx = (float)ceil(s1.x);
1326 v[0].sy = (float)ceil(s1.y);
1330 v[0].flags = PF_PROJECTED;
1332 v[0].r = gr_screen.current_color.red;
1333 v[0].g = gr_screen.current_color.green;
1334 v[0].b = gr_screen.current_color.blue;
1336 v[1].sx = (float)ceil(s2.x);
1337 v[1].sy = (float)ceil(s2.y);
1341 v[1].flags = PF_PROJECTED;
1343 v[1].r = gr_screen.current_color.red;
1344 v[1].g = gr_screen.current_color.green;
1345 v[1].b = gr_screen.current_color.blue;
1347 v[2].sx = (float)ceil(e2.x);
1348 v[2].sy = (float)ceil(e2.y);
1352 v[2].flags = PF_PROJECTED;
1354 v[2].r = gr_screen.current_color.red;
1355 v[2].g = gr_screen.current_color.green;
1356 v[2].b = gr_screen.current_color.blue;
1358 v[3].sx = (float)ceil(e1.x);
1359 v[3].sy = (float)ceil(e1.y);
1363 v[3].flags = PF_PROJECTED;
1365 v[3].r = gr_screen.current_color.red;
1366 v[3].g = gr_screen.current_color.green;
1367 v[3].b = gr_screen.current_color.blue;
1370 g3_draw_poly_constant_sw(4, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB, 0.1f);
1372 // if we're past the first section, draw a "patch" triangle to fill any gaps
1375 v[0].sx = (float)ceil(s1.x);
1376 v[0].sy = (float)ceil(s1.y);
1380 v[0].flags = PF_PROJECTED;
1382 v[0].r = gr_screen.current_color.red;
1383 v[0].g = gr_screen.current_color.green;
1384 v[0].b = gr_screen.current_color.blue;
1386 v[1].sx = (float)ceil(s2.x);
1387 v[1].sy = (float)ceil(s2.y);
1391 v[1].flags = PF_PROJECTED;
1393 v[1].r = gr_screen.current_color.red;
1394 v[1].g = gr_screen.current_color.green;
1395 v[1].b = gr_screen.current_color.blue;
1398 v[2].sx = (float)ceil(last_e2.x);
1399 v[2].sy = (float)ceil(last_e2.y);
1403 v[2].flags = PF_PROJECTED;
1405 v[2].r = gr_screen.current_color.red;
1406 v[2].g = gr_screen.current_color.green;
1407 v[2].b = gr_screen.current_color.blue;
1409 g3_draw_poly_constant_sw(3, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB, 0.1f);
1412 // store our endpoints
1421 // restore zbuffer mode
1422 gr_zbuffer_set(saved_zbuffer_mode);