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 1.10 2002/06/17 06:33:09 relnev
19 * ryan's struct patch for gcc 2.95
21 * Revision 1.9 2002/06/09 04:41:17 relnev
22 * added copyright header
24 * Revision 1.8 2002/06/05 04:03:32 relnev
25 * finished cfilesystem.
27 * removed some old code.
29 * fixed mouse save off-by-one.
33 * Revision 1.7 2002/05/30 21:44:48 relnev
34 * implemented some missing texture stuff.
36 * enable bitmap polys for opengl.
38 * work around greenness in bitmaps.
40 * Revision 1.6 2002/05/28 21:36:10 relnev
41 * some more timer junk.
43 * tried to fix software mode.
45 * Revision 1.5 2002/05/28 04:18:08 theoddone33
46 * Fix some stuff and add -DFS2_DEMO
48 * Revision 1.4 2002/05/27 22:43:02 theoddone33
49 * Fix more glide symbols
51 * Revision 1.3 2002/05/27 22:39:21 theoddone33
52 * Remove glide symbols
54 * Revision 1.2 2002/05/07 03:16:45 theoddone33
55 * The Great Newline Fix
57 * Revision 1.1.1.1 2002/05/03 03:28:09 root
61 * 25 8/20/99 2:09p Dave
64 * 24 8/16/99 9:45a Jefff
65 * changes to cursor management to allow a 2nd temporary cursor
67 * 23 7/27/99 3:52p Dave
68 * Make star drawing a bit more robust to help lame D3D cards.
70 * 22 7/18/99 12:32p Dave
71 * Randomly oriented shockwaves.
73 * 21 7/15/99 3:07p Dave
74 * 32 bit detection support. Mouse coord commandline.
76 * 20 7/14/99 9:42a Dave
77 * Put in clear_color debug function. Put in base for 3dnow stuff / P3
80 * 19 7/13/99 1:15p Dave
81 * 32 bit support. Whee!
83 * 18 7/12/99 11:42a Jefff
84 * Made rectangle drawing smarter in D3D. Made plines draw properly on Ati
87 * 17 7/09/99 9:51a Dave
88 * Added thick polyline code.
90 * 16 7/02/99 3:05p Anoop
91 * Oops. Fixed g3_draw_2d_poly() so that it properly handles poly bitmap
92 * and LFB bitmap calls.
94 * 15 6/29/99 10:35a Dave
95 * Interface polygon bitmaps! Whee!
97 * 14 4/09/99 2:21p Dave
98 * Multiplayer beta stuff. CD checking.
100 * 13 2/03/99 11:44a Dave
101 * Fixed d3d transparent textures.
103 * 12 1/29/99 12:47a Dave
104 * Put in sounds for beam weapon. A bunch of interface screens (tech
107 * 11 1/15/99 11:29a Neilk
108 * Fixed D3D screen/texture pixel formatting problem.
110 * 10 1/08/99 2:08p Dave
111 * Fixed software rendering for pofview. Super early support for AWACS and
114 * 9 1/06/99 2:24p Dave
115 * Stubs and release build fixes.
117 * 8 12/18/98 1:49a Dave
118 * Fixed Fred initialization problem resulting from hi-res mode changes.
120 * 7 12/18/98 1:13a Dave
121 * Rough 1024x768 support for Direct3D. Proper detection and usage through
124 * 6 12/01/98 10:32a Johnson
125 * Fixed direct3d font problems. Fixed sun bitmap problem. Fixed direct3d
128 * 5 11/30/98 5:31p Dave
129 * Fixed up Fred support for software mode.
131 * 4 11/30/98 1:07p Dave
132 * 16 bit conversion, first run.
134 * 3 11/11/98 5:37p Dave
135 * Checkin for multiplayer testing.
137 * 2 10/07/98 10:52a Dave
140 * 1 10/07/98 10:48a Dave
142 * 122 6/13/98 3:18p Hoffoss
143 * NOX()ed out a bunch of strings that shouldn't be translated.
145 * 121 5/23/98 11:26a Hoffoss
146 * Fixed bug where optimized code used EDX and my code trashed it.
148 * 120 5/22/98 11:09p John
149 * put in code to hopefull not crash cyrix cpus
151 * 119 5/20/98 9:45p John
152 * added code so the places in code that change half the palette don't
153 * have to clear the screen.
155 * 118 5/20/98 12:59p Hoffoss
156 * Changed temporary crossfade code to just pop the image again.
158 * 117 5/16/98 1:18p John
159 * Made softtware DirectDraw reset palette after Alt+TAB.
161 * 116 5/14/98 5:42p John
162 * Revamped the whole window position/mouse code for the graphics windows.
164 * 115 5/08/98 10:49a John
165 * Made 'gr d' go into direct3d mode.
167 * 114 5/06/98 11:21p John
168 * Fixed a bitmap bug with Direct3D. Started adding new caching code into
171 * 113 4/21/98 9:28a John
172 * Added stub for cross-fade.
174 * 112 4/10/98 5:20p John
175 * Changed RGB in lighting structure to be ubytes. Removed old
176 * not-necessary 24 bpp software stuff.
178 * 111 4/06/98 12:55p John
179 * Upped the gamma for Fred.
181 * 110 3/25/98 8:07p John
182 * Restructured software rendering into two modules; One for windowed
183 * debug mode and one for DirectX fullscreen.
185 * 109 3/24/98 3:58p John
186 * Put in (hopefully) final gamma setting code.
188 * 108 3/10/98 4:18p John
189 * Cleaned up graphics lib. Took out most unused gr functions. Made D3D
190 * & Glide have popups and print screen. Took out all >8bpp software
191 * support. Made Fred zbuffer. Made zbuffer allocate dynamically to
192 * support Fred. Made zbuffering key off of functions rather than one
195 * 107 2/25/98 2:37p John
196 * Made afterburner shake 2x less noticable. Made 'gr a' leave Glide mode
197 * properly. Made model_caching never work in hardware mode.
199 * 106 2/23/98 2:27p John
200 * Made int3,asserts, etc pass video through.
202 * 105 2/20/98 3:13p John
203 * Made popup save code print an error an exit out if 3d accelerated.
205 * 104 2/19/98 6:13p John
206 * Made Glide do texturing & zbuffering.
208 * 103 1/26/98 5:12p John
209 * Added in code for Pentium Pro specific optimizations. Speed up
210 * zbuffered correct tmapper about 35%. Speed up non-zbuffered scalers
213 * 102 1/14/98 11:39a Dave
214 * Polished up a bunch of popup support items.
216 * 101 1/10/98 1:14p John
217 * Added explanation to debug console commands
219 * 100 12/21/97 4:33p John
220 * Made debug console functions a class that registers itself
221 * automatically, so you don't need to add the function to
222 * debugfunctions.cpp.
224 * 99 12/04/97 12:09p John
225 * Made glows use scaler instead of tmapper so they don't rotate. Had to
226 * add a zbuffered scaler.
228 * 98 12/03/97 10:47a John
229 * added functions to save/restore entire screens.
231 * 97 12/02/97 3:59p John
232 * Added first rev of thruster glow, along with variable levels of
233 * translucency, which retquired some restructing of palman.
235 * 96 11/30/97 12:18p John
236 * added more 24 & 32-bpp primitives
238 * 95 11/24/97 11:20a John
241 * 94 11/14/97 3:54p John
242 * Added triple buffering.
244 * 93 11/14/97 12:30p John
245 * Fixed some DirectX bugs. Moved the 8-16 xlat tables into Graphics
246 * libs. Made 16-bpp DirectX modes know what bitmap format they're in.
248 * 92 10/09/97 5:23p John
249 * Added support for more 16-bpp functions
251 * 91 9/20/97 8:16a John
252 * Made .clr files go into the Cache directory. Replaced cfopen(name,NULL)
253 * to delete a file with cf_delete.
255 * 90 9/09/97 11:01a Sandeep
256 * fixed warning level 4 bugs
258 * 89 9/07/97 10:01p Lawrance
259 * add in support for animating mouse pointer
261 * 88 9/03/97 4:32p John
262 * changed bmpman to only accept ani and pcx's. made passing .pcx or .ani
263 * to bm_load functions not needed. Made bmpman keep track of palettes
264 * for bitmaps not mapped into game palettes.
266 * 87 8/20/97 4:19p John
267 * added delay to hopefully fix mike's problems when getting int3's in
270 * 86 7/16/97 3:07p John
272 * 85 6/18/97 12:07p John
273 * fixed some color bugs
275 * 84 6/17/97 7:04p John
276 * added d3d support for gradients.
277 * fixed some color bugs by adding screen signatures instead of watching
278 * flags and palette changes.
280 * 83 6/17/97 12:03p John
281 * Moved color/alphacolor functions into their own module. Made all color
282 * functions be part of the low-level graphics drivers, not just the
285 * 82 6/12/97 5:04p John
286 * Initial rev of Glide support
288 * 81 6/11/97 5:49p John
289 * Changed palette code to only recalculate alphacolors when needed, not
290 * when palette changes.
292 * 80 6/11/97 1:12p John
293 * Started fixing all the text colors in the game.
295 * 79 6/06/97 5:03p John
296 * fixed bug withalpha colors failing after gr_init
298 * 78 6/06/97 4:53p John
299 * made gr_init not bash current color
301 * 77 6/05/97 4:53p John
302 * First rev of new antialiased font stuff.
304 * 76 5/20/97 10:36a John
305 * Fixed problem with user bitmaps and direct3d caching.
307 * 75 5/16/97 9:11a John
308 * fixed bug that made Ctrl+Break in fullscreen hang
310 * 74 5/14/97 4:38p John
311 * Fixed print_screen bug.
313 * 73 5/14/97 2:10p John
314 * added rudimentary support for windowed direct3d.
316 * 72 5/14/97 10:53a John
317 * fixed some discrepencies between d3d and software palette setting.
319 * 71 5/13/97 4:39p John
320 * Added console function to set graphics modes.
322 * 70 5/13/97 12:39p John
323 * Got fullscreen mode working.
325 * 69 5/12/97 12:27p John
326 * Restructured Graphics Library to add support for multiple renderers.
328 * 68 5/07/97 2:59p John
329 * Initial rev of D3D texturing.
331 * 67 5/01/97 3:32p John
332 * oops... forced 2d to always be in 8bpp,
334 * 66 5/01/97 3:23p John
335 * first hooks for some direct 3d setup stuff.
337 * 65 4/28/97 5:33p John
338 * fixed a newly introduced bug with fullscreen toggle.
340 * 64 4/28/97 4:46p John
342 * 63 4/22/97 12:20p John
343 * fixed more resource leaks
345 * 62 4/22/97 10:33a John
346 * fixed the 2d resource leaks that Alan found.
348 * 61 3/31/97 9:45a Allender
349 * start of new font stuff
351 * 60 3/26/97 10:52a Lawrance
352 * mouse always on in menus, disappears in gameplay after 1 second
354 * 59 3/14/97 3:55p John
355 * Made tiled tmapper not always be zbuffered.
357 * 58 3/13/97 9:09a Allender
358 * variable to allow trashing of the palette. kind of temporary code
359 * right now...checking needed for undefined references
361 * 57 3/12/97 2:51p John
362 * Added some test code for tmapper.
364 * 56 3/12/97 9:25a John
365 * fixed a bug with zbuffering. Reenabled it by default.
367 * 55 3/11/97 5:13p John
368 * made top up bitmaps work.
370 * 54 2/26/97 11:59a Allender
371 * comment out warning about display settings not being optimal
373 * 53 1/09/97 2:16p John
374 * took out the "Bing!" message
376 * 52 1/09/97 11:35a John
377 * Added some 2d functions to get/put screen images.
379 * 51 1/07/97 2:01p John
380 * Fairly fast zbuffering for object sorting.
382 * 50 1/06/97 2:44p John
383 * Added in slow (but correct) zbuffering
385 * 49 12/11/96 12:41p John
386 * Added new code to draw 3d laser using 2d ellipses.
388 * 48 12/03/96 5:42p John
389 * took out debug code.
391 * 47 12/03/96 5:42p John
392 * made gr_bitmap clip properly.
394 * 46 12/03/96 5:06p John
395 * Added code to draw our own cursor.
397 * 45 11/26/96 6:50p John
398 * Added some more hicolor primitives. Made windowed mode run as current
399 * bpp, if bpp is 8,16,or 32.
401 * 44 11/21/96 11:23a John
402 * fixed bug with previous.
404 * 43 11/21/96 11:21a John
405 * Made gr_get_string_size handle multi line text.
406 * Took out gr_get_multiline_string_size
408 * 42 11/21/96 11:06a John
411 * 41 11/20/96 10:01a Hoffoss
412 * A few minor improvements.
414 * 40 11/19/96 2:47p Allender
415 * add support for xparent bitmaps in 32bpp
417 * 39 11/18/96 4:46p Allender
418 * changed warning message about bit depth to appear when requested
419 * doesn't equal actual
421 * 38 11/18/96 4:35p Allender
422 * new 16bpp gradient functions
424 * 37 11/18/96 3:09p John
425 * made gr_clear always clear to black.
427 * 36 11/18/96 1:48p Allender
428 * added 16 bit version of shader
430 * 35 11/18/96 12:36p John
431 * Added code to dump screen to a PCX file.
433 * 34 11/18/96 11:40a John
434 * Added faster gr_set_color method.
436 * 33 11/15/96 11:26a John
437 * Added code to clip text to clipping region.
439 * 32 11/15/96 11:26a Allender
440 * fixed up 16 bbp version of gr_bitmap
442 * 31 11/14/96 9:11a John
443 * Fixed bug that didn't offset the gr_string text by the current clip
446 * 30 11/13/96 6:47p John
447 * Added gr_flip function.
449 * 29 11/13/96 10:10a John
450 * Increases MAX_WIDTH & HEIGHT for Jasen's massive 1600x1200 display.
452 * 28 11/07/96 6:19p John
453 * Added a bunch of 16bpp primitives so the game sort of runs in 16bpp
456 * 27 10/30/96 10:36a Lawrance
457 * added gr_diamond function
459 * 26 10/26/96 1:40p John
460 * Added some now primitives to the 2d library and
461 * cleaned up some old ones.
468 #include <windowsx.h>
477 #include "grinternal.h"
478 #include "systemvars.h"
482 // #include "amd3d.h"
484 // Includes for different rendering systems
490 #include "gropengl.h"
491 #include "grdirectdraw.h"
495 color_gun Gr_red, Gr_green, Gr_blue, Gr_alpha;
496 color_gun Gr_t_red, Gr_t_green, Gr_t_blue, Gr_t_alpha;
497 color_gun Gr_ta_red, Gr_ta_green, Gr_ta_blue, Gr_ta_alpha;
498 color_gun *Gr_current_red, *Gr_current_green, *Gr_current_blue, *Gr_current_alpha;
501 ubyte Gr_original_palette[768]; // The palette
502 ubyte Gr_current_palette[768];
503 char Gr_current_palette_name[128] = NOX("none");
507 int Web_cursor_bitmap = -1;
517 uint Gr_signature = 0;
519 float Gr_gamma = 1.8f;
520 int Gr_gamma_int = 180;
521 int Gr_gamma_lookup[256];
525 if ( !Gr_inited ) return;
529 switch( gr_screen.mode ) {
536 gr_directdraw_cleanup();
549 Int3(); // Invalid graphics mode
558 DCF(gr,"Changes graphics mode")
560 #ifndef HARDWARE_ONLY
561 int mode = gr_screen.mode;
564 dc_get_arg(ARG_STRING);
566 if ( !strcmp( Dc_arg, "a")) {
569 } else if ( !strcmp( Dc_arg, "b")) {
571 mode = GR_DIRECTDRAW;
572 } else if ( !strcmp( Dc_arg, "d")) {
574 } else if ( !strcmp( Dc_arg, "g")) {
578 } else if ( !strcmp( Dc_arg, "o")) {
581 // print usage, not stats
586 if ( mode != gr_screen.mode ) {
587 dc_printf( "Setting new video mode...\n" );
588 int errcode = gr_init( gr_screen.max_w, gr_screen.max_h, mode );
590 dc_printf( "Error %d. Graphics unchanged.\n", errcode );
597 dc_printf( "Usage: gr mode\n" );
598 dc_printf( "The options can be:\n" );
599 dc_printf( "Macros: A=software win32 window (obsolete)\n" );
600 dc_printf( " B=software directdraw fullscreen (obsolete)\n" );
601 dc_printf( " D=Direct3d\n" );
602 dc_printf( " G=Glide\n" );
603 dc_printf( " O=OpenGl (obsolete)\n" );
604 Dc_status = 0; // don't print status if help is printed. Too messy.
608 switch( gr_screen.mode ) {
611 dc_printf( "Win32 software windowed\n" );
615 dc_printf( "DirectDraw software windowed\n" );
618 dc_printf( "Direct3D\n" );
622 dc_printf( "3Dfx Glide\n" );
626 dc_printf( "OpenGl\n" );
629 Int3(); // Invalid graphics mode
636 // set screen clear color
637 DCF(clear_color, "set clear color r, g, b")
649 gr_set_clear_color(r, g, b);
652 void gr_set_palette_internal( char *name, ubyte * palette, int restrict_font_to_128 )
654 if ( palette == NULL ) {
655 // Create a default palette
661 for (b=0; b<6; b++ ) {
662 Gr_current_palette[i*3+0] = (unsigned char)(r*51);
663 Gr_current_palette[i*3+1] = (unsigned char)(g*51);
664 Gr_current_palette[i*3+2] = (unsigned char)(b*51);
667 for ( i=216;i<256; i++ ) {
668 Gr_current_palette[i*3+0] = (unsigned char)((i-216)*6);
669 Gr_current_palette[i*3+1] = (unsigned char)((i-216)*6);
670 Gr_current_palette[i*3+2] = (unsigned char)((i-216)*6);
672 memmove( Gr_original_palette, Gr_current_palette, 768 );
674 memmove( Gr_original_palette, palette, 768 );
675 memmove( Gr_current_palette, palette, 768 );
678 // mprintf(("Setting new palette\n" ));
681 if (gr_screen.gf_set_palette) {
682 (*gr_screen.gf_set_palette)(Gr_current_palette, restrict_font_to_128 );
684 // Since the palette set code might shuffle the palette,
685 // reload it into the source palette
687 memmove( palette, Gr_current_palette, 768 );
690 // Update Palette Manager tables
691 memmove( gr_palette, Gr_current_palette, 768 );
692 palette_update(name, restrict_font_to_128);
697 void gr_set_palette( char *name, ubyte * palette, int restrict_font_to_128 )
701 strcpy( Gr_current_palette_name, name );
702 p = strchr( Gr_current_palette_name, '.' );
704 gr_screen.signature = Gr_signature++;
705 gr_set_palette_internal( name, palette, restrict_font_to_128 );
711 #define CPUID _asm _emit 0fh _asm _emit 0a2h
713 // -----------------------------------------------------------------------
715 void gr_detect_cpu(int *cpu, int *mmx, int *amd3d, int *katmai )
730 memset( cpu_vender, 0, sizeof(cpu_vender) );
734 // Check for prescence of
740 pushfd // get extended flags
742 mov ebx, eax // save current flags
743 xor eax, 200000h // toggle bit 21
744 push eax // push new flags on stack
745 popfd // flags updated now in flags
746 pushfd // get extended flags
747 pop eax // store extended flags in eax
748 xor eax, ebx // if bit 21 r/w then eax <> 0
751 mov eax, 0 // setup CPUID to return vender id
752 CPUID // code bytes = 0fh, 0a2h
753 mov DWORD PTR cpu_vender[0], ebx
754 mov DWORD PTR cpu_vender[4], edx
755 mov DWORD PTR cpu_vender[8], ecx
757 mov eax, 1 // setup CPUID to return features
759 CPUID // code bytes = 0fh, 0a2h
761 mov RegEAX, eax // family, etc returned in eax
762 mov RegEDX, edx // features returned in edx
763 jmp done_checking_cpuid
767 mov RegEAX, 4<<8 // family, etc returned in eax
768 mov RegEDX, 0 // features returned in edx
780 //RegEAX . Bits 11:8 is family
781 *cpu = (RegEAX >>8) & 0xF;
784 *cpu = 4; // processor does not support CPUID
788 //RegEAX . Bits 11:8 is family
789 *cpu = (RegEAX >>8) & 0xF;
793 if (RegEDX & 0x800000) // bit 23 is set for MMX technology
796 __try { _asm emms } // try executing an MMX instruction "emms"
798 __except(EXCEPTION_EXECUTE_HANDLER) { retval = FALSE; }
804 *mmx = 1; // processor supports CPUID but does not support MMX technology
808 if (RegEDX & (1<<25) ) // bit 25 is set for Katmai technology
813 // Check for Amd 3dnow
815 if ( !stricmp( cpu_vender, NOX("AuthenticAMD")) ) {
818 mov eax, 0x80000000 // setup CPUID to return extended number of functions
820 CPUID // code bytes = 0fh, 0a2h
822 mov RegEAX, eax // highest extended function value
825 if ( RegEAX > 0x80000000 ) {
828 mov eax, 0x80000001 // setup CPUID to return extended flags
830 CPUID // code bytes = 0fh, 0a2h
832 mov RegEAX, eax // family, etc returned in eax
833 mov RegEDX, edx // flags in edx
836 if (RegEDX & 0x80000000) // bit 31 is set for AMD-3D technology
838 // try executing some 3Dnow instructions
841 float x = (float)1.25;
842 float y = (float)1.25;
848 PFMUL(AMD_M1, AMD_M2);
854 int should_be_156 = int(z*100);
856 if ( should_be_156 == 156 ) {
862 __except(EXCEPTION_EXECUTE_HANDLER) { }
871 // --------------------------------------------------------------------------
873 int gr_init(int res, int mode, int depth, int fred_x, int fred_y)
878 gr_detect_cpu(&Gr_cpu, &Gr_mmx, &Gr_amd3d, &Gr_katmai );
880 mprintf(( "GR_CPU: Family %d, MMX=%s\n", Gr_cpu, (Gr_mmx?"Yes":"No") ));
887 // If already inited, shutdown the previous graphics
889 switch( gr_screen.mode ) {
896 gr_directdraw_cleanup();
909 Int3(); // Invalid graphics mode
915 #if defined(HARDWARE_ONLY)
917 if(!Fred_running && !Pofview_running && !Nebedit_running && !Is_standalone){
918 if((mode != GR_GLIDE) && (mode != GR_DIRECT3D) && (mode != GR_OPENGL)){
919 mprintf(("Forcing glide startup!\n"));
931 if(!Fred_running && !Pofview_running){
932 // set resolution based on the res type
952 // Make w a multiple of 8
953 max_w = ( max_w / 8 )*8;
954 if ( max_w < 8 ) max_w = 8;
955 if ( max_h < 8 ) max_h = 8;
957 memset( &gr_screen, 0, sizeof(screen) );
959 gr_screen.signature = Gr_signature++;
960 gr_screen.mode = mode;
962 gr_screen.max_w = max_w;
963 gr_screen.max_h = max_h;
964 gr_screen.aspect = 1.0f; // Normal PC screen
965 gr_screen.offset_x = 0;
966 gr_screen.offset_y = 0;
967 gr_screen.clip_left = 0;
968 gr_screen.clip_top = 0;
969 gr_screen.clip_right = gr_screen.max_w - 1;
970 gr_screen.clip_bottom = gr_screen.max_h - 1;
971 gr_screen.clip_width = gr_screen.max_w;
972 gr_screen.clip_height = gr_screen.max_h;
974 switch( gr_screen.mode ) {
976 Assert(Fred_running || Pofview_running || Is_standalone || Nebedit_running);
982 gr_directdraw_init();
985 // we only care about possible 32 bit stuff here
986 Cmdline_force_32bit = 0;
988 Cmdline_force_32bit = 1;
993 // bad startup - stupid D3D
994 extern int D3D_inited;
1002 // if we're in high-res. force polygon interface
1003 if(gr_screen.res == GR_1024){
1013 Int3(); // Invalid graphics mode
1016 memmove( Gr_current_palette, Gr_original_palette, 768 );
1017 gr_set_palette_internal(Gr_current_palette_name, Gr_current_palette,0);
1019 gr_set_gamma(Gr_gamma);
1021 if ( Gr_cursor == -1 ){
1022 Gr_cursor = bm_load( "cursor" );
1025 // load the web pointer cursor bitmap
1026 if (Web_cursor_bitmap < 0) {
1027 int nframes; // used to pass, not really needed (should be 1)
1028 Web_cursor_bitmap = bm_load_animation("cursorweb", &nframes);
1029 Assert(Web_cursor_bitmap >= 0); // if bitmap didnt load, thats not good (this is protected for in release tho)
1032 gr_set_color(0,0,0);
1034 gr_set_clear_color(0, 0, 0);
1036 // Call some initialization functions
1037 gr_set_shader(NULL);
1042 void gr_force_windowed()
1044 if ( !Gr_inited ) return;
1046 switch( gr_screen.mode ) {
1049 extern void gr_soft_force_windowed();
1050 gr_soft_force_windowed();
1057 extern void gr_directdraw_force_windowed();
1058 gr_directdraw_force_windowed();
1065 extern void gr_glide_force_windowed();
1066 gr_glide_force_windowed();
1073 Int3(); // Invalid graphics mode
1076 if ( Os_debugger_running )
1080 void gr_activate(int active)
1082 if ( !Gr_inited ) return;
1084 switch( gr_screen.mode ) {
1087 extern void gr_soft_activate(int active);
1088 gr_soft_activate(active);
1096 extern void gr_dd_activate(int active);
1097 gr_dd_activate(active);
1103 extern void gr_d3d_activate(int active);
1104 gr_d3d_activate(active);
1110 extern void gr_glide_activate(int active);
1111 gr_glide_activate(active);
1118 extern void gr_opengl_activate(int active);
1119 gr_opengl_activate(active);
1124 Int3(); // Invalid graphics mode
1129 // -----------------------------------------------------------------------
1130 // gr_set_cursor_bitmap()
1132 // Set the bitmap for the mouse pointer. This is called by the animating mouse
1135 // The lock parameter just locks basically disables the next call of this function that doesnt
1136 // have an unlock feature. If adding in more cursor-changing situations, be aware of
1137 // unexpected results. You have been warned.
1139 // TODO: investigate memory leak of original Gr_cursor bitmap when this is called
1140 void gr_set_cursor_bitmap(int n, int lock)
1142 static int locked = 0;
1145 if (!locked || (lock == GR_CURSOR_UNLOCK)) {
1151 if (lock == GR_CURSOR_LOCK) {
1156 // retrieves the current bitmap
1157 // used in UI_GADGET to save/restore current cursor state
1158 int gr_get_cursor_bitmap()
1164 int Gr_bitmap_poly = 0;
1167 Gr_bitmap_poly = !Gr_bitmap_poly;
1170 dc_printf("Using poly bitmaps\n");
1172 dc_printf("Using LFB bitmaps\n");
1176 // new bitmap functions
1177 void gr_bitmap(int x, int y)
1179 int section_x, section_y;
1183 // d3d and glide support texture poly shiz
1184 if(((gr_screen.mode == GR_DIRECT3D) || (gr_screen.mode == GR_GLIDE) || (gr_screen.mode == GR_OPENGL)) && Gr_bitmap_poly){
1186 // float u_scale, v_scale;
1187 bitmap_section_info *sections;
1189 // render all sections
1190 bm_get_info(gr_screen.current_bitmap, &w, &h, NULL, NULL, NULL, §ions);
1193 for(idx=0; idx<sections->num_y; idx++){
1195 for(s_idx=0; s_idx<sections->num_x; s_idx++){
1196 // get the section as a texture in vram
1197 gr_set_bitmap(gr_screen.current_bitmap, gr_screen.current_alphablend_mode, gr_screen.current_bitblt_mode, gr_screen.current_alpha, s_idx, idx);
1199 // determine the width and height of this section
1200 bm_get_section_size(gr_screen.current_bitmap, s_idx, idx, §ion_x, §ion_y);
1203 g3_draw_2d_poly_bitmap(x + x_line, y + y_line, section_x, section_y, TMAP_FLAG_BITMAP_SECTION);
1204 x_line += section_x;
1206 y_line += section_y;
1213 // old school bitmaps
1214 switch(gr_screen.mode){
1222 gr_d3d_bitmap(x, y);
1226 gr_glide_bitmap(x, y);
1229 /* don't want opengl bitmap to be called -- slow! */
1231 // gr_opengl_bitmap(x, y);
1238 void gr_bitmap_ex(int x, int y, int w, int h, int sx, int sy)
1240 switch(gr_screen.mode){
1243 grx_bitmap_ex(x, y, w, h, sx, sy);
1247 gr_d3d_bitmap_ex(x, y, w, h, sx, sy);
1251 gr_glide_bitmap_ex(x, y, w, h, sx, sy);
1256 // gr_opengl_bitmap_ex(x, y, w, h, sx, sy);
1264 // given endpoints, and thickness, calculate coords of the endpoint
1265 void gr_pline_helper(vector *out, vector *in1, vector *in2, int thickness)
1269 // slope of the line
1270 if(vm_vec_same(in1, in2)){
1271 slope = vmd_zero_vector;
1273 vm_vec_sub(&slope, in2, in1);
1274 float temp = -slope.xyz.x;
1275 slope.xyz.x = slope.xyz.y;
1277 vm_vec_normalize(&slope);
1281 vm_vec_scale_add(out, in1, &slope, (float)thickness);
1284 // special function for drawing polylines. this function is specifically intended for
1285 // polylines where each section is no more than 90 degrees away from a previous section.
1286 // Moreover, it is _really_ intended for use with 45 degree angles.
1287 void gr_pline_special(vector **pts, int num_pts, int thickness)
1289 vector s1, s2, e1, e2, dir;
1290 vector last_e1, last_e2;
1292 vertex *verts[4] = {&v[0], &v[1], &v[2], &v[3]};
1293 int saved_zbuffer_mode, idx;
1294 int started_frame = 0;
1298 // if we have less than 2 pts, bail
1303 extern int G3_count;
1309 // turn off zbuffering
1310 saved_zbuffer_mode = gr_zbuffer_get();
1311 gr_zbuffer_set(GR_ZBUFF_NONE);
1316 // draw each section
1317 last_e1 = vmd_zero_vector;
1318 last_e2 = vmd_zero_vector;
1319 for(idx=0; idx<num_pts-1; idx++){
1320 // get the start and endpoints
1321 s1 = *pts[idx]; // start 1 (on the line)
1322 gr_pline_helper(&s2, pts[idx], pts[idx+1], thickness); // start 2
1323 e1 = *pts[idx+1]; // end 1 (on the line)
1324 vm_vec_sub(&dir, pts[idx+1], pts[idx]);
1325 vm_vec_add(&e2, &s2, &dir); // end 2
1328 v[0].sx = (float)ceil(s1.xyz.x);
1329 v[0].sy = (float)ceil(s1.xyz.y);
1333 v[0].flags = PF_PROJECTED;
1335 v[0].r = gr_screen.current_color.red;
1336 v[0].g = gr_screen.current_color.green;
1337 v[0].b = gr_screen.current_color.blue;
1339 v[1].sx = (float)ceil(s2.xyz.x);
1340 v[1].sy = (float)ceil(s2.xyz.y);
1344 v[1].flags = PF_PROJECTED;
1346 v[1].r = gr_screen.current_color.red;
1347 v[1].g = gr_screen.current_color.green;
1348 v[1].b = gr_screen.current_color.blue;
1350 v[2].sx = (float)ceil(e2.xyz.x);
1351 v[2].sy = (float)ceil(e2.xyz.y);
1355 v[2].flags = PF_PROJECTED;
1357 v[2].r = gr_screen.current_color.red;
1358 v[2].g = gr_screen.current_color.green;
1359 v[2].b = gr_screen.current_color.blue;
1361 v[3].sx = (float)ceil(e1.xyz.x);
1362 v[3].sy = (float)ceil(e1.xyz.y);
1366 v[3].flags = PF_PROJECTED;
1368 v[3].r = gr_screen.current_color.red;
1369 v[3].g = gr_screen.current_color.green;
1370 v[3].b = gr_screen.current_color.blue;
1373 g3_draw_poly_constant_sw(4, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB, 0.1f);
1375 // if we're past the first section, draw a "patch" triangle to fill any gaps
1378 v[0].sx = (float)ceil(s1.xyz.x);
1379 v[0].sy = (float)ceil(s1.xyz.y);
1383 v[0].flags = PF_PROJECTED;
1385 v[0].r = gr_screen.current_color.red;
1386 v[0].g = gr_screen.current_color.green;
1387 v[0].b = gr_screen.current_color.blue;
1389 v[1].sx = (float)ceil(s2.xyz.x);
1390 v[1].sy = (float)ceil(s2.xyz.y);
1394 v[1].flags = PF_PROJECTED;
1396 v[1].r = gr_screen.current_color.red;
1397 v[1].g = gr_screen.current_color.green;
1398 v[1].b = gr_screen.current_color.blue;
1401 v[2].sx = (float)ceil(last_e2.xyz.x);
1402 v[2].sy = (float)ceil(last_e2.xyz.y);
1406 v[2].flags = PF_PROJECTED;
1408 v[2].r = gr_screen.current_color.red;
1409 v[2].g = gr_screen.current_color.green;
1410 v[2].b = gr_screen.current_color.blue;
1412 g3_draw_poly_constant_sw(3, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB, 0.1f);
1415 // store our endpoints
1424 // restore zbuffer mode
1425 gr_zbuffer_set(saved_zbuffer_mode);