2 Copyright (C) 2003, 2010 - Wolfire Games
4 This file is part of Lugaru.
6 Lugaru is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 See the GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #define UINT8 WIN32API_UINT8
25 #define UINT16 WIN32API_UINT16
26 #define boolean WIN32API_boolean
40 #define INT32 INT32_jpeg
48 static bool load_image(const char * fname, TGAImageRec & tex);
49 static bool load_png(const char * fname, TGAImageRec & tex);
50 static bool load_jpg(const char * fname, TGAImageRec & tex);
51 bool save_image(const char * fname);
52 static bool save_png(const char * fname);
55 #include "openal_wrapper.h"
57 extern float multiplier;
59 extern float realmultiplier;
61 extern bool cellophane;
62 extern float texdetail;
66 extern bool stillloading;
68 /*extern*/ bool gameFocused;
70 extern float slomospeed;
71 extern float slomofreq;
81 #include "MacCompatibility.h"
86 #include "win-res/resource.h"
91 SDL_Rect **resolutions = NULL;
92 static SDL_Rect rect_1024_768 = { 0, 0, 1024, 768 };
93 static SDL_Rect rect_800_600 = { 0, 0, 800, 600 };
94 static SDL_Rect rect_640_480 = { 0, 0, 640, 480 };
95 static SDL_Rect *hardcoded_resolutions[] = {
102 void DrawGL(Game & game);
104 Boolean SetUp (Game & game);
105 void DoUpdate (Game & game);
109 // statics/globals (internal only) ------------------------------------------
112 #pragma warning(push)
113 #pragma warning(disable: 4273)
116 #define GL_FUNC(ret,fn,params,call,rt) \
118 static ret (GLAPIENTRY *p##fn) params = NULL; \
119 ret GLAPIENTRY fn params { rt p##fn call; } \
128 static bool lookup_glsym(const char *funcname, void **func)
130 *func = SDL_GL_GetProcAddress(funcname);
133 fprintf(stderr, "Failed to find OpenGL symbol \"%s\"\n", funcname);
139 static bool lookup_all_glsyms(void)
142 #define GL_FUNC(ret,fn,params,call,rt) \
143 if (!lookup_glsym(#fn, (void **) &p##fn)) retval = false;
149 static void GLAPIENTRY glDeleteTextures_doNothing(GLsizei n, const GLuint *textures)
157 #define MessageBox(hwnd,text,title,flags) STUBBED("msgbox")
164 Boolean gDone = false;
169 static int _argc = 0;
170 static char **_argv = NULL;
173 bool cmdline(const char *cmd)
175 for (int i = 1; i < _argc; i++)
177 char *arg = _argv[i];
180 if (strcasecmp(arg, cmd) == 0)
187 //-----------------------------------------------------------------------------------------------------------------------
192 glClear( GL_COLOR_BUFFER_BIT );
196 glDisable( GL_ALPHA_TEST);
197 glDisable( GL_BLEND);
198 glDisable( GL_DEPTH_TEST);
199 // glDisable( GL_DITHER);
201 glDisable( GL_LIGHTING);
202 glDisable( GL_LOGIC_OP);
203 glDisable( GL_TEXTURE_1D);
204 glDisable( GL_TEXTURE_2D);
205 glPixelTransferi( GL_MAP_COLOR, GL_FALSE);
206 glPixelTransferi( GL_RED_SCALE, 1);
207 glPixelTransferi( GL_RED_BIAS, 0);
208 glPixelTransferi( GL_GREEN_SCALE, 1);
209 glPixelTransferi( GL_GREEN_BIAS, 0);
210 glPixelTransferi( GL_BLUE_SCALE, 1);
211 glPixelTransferi( GL_BLUE_BIAS, 0);
212 glPixelTransferi( GL_ALPHA_SCALE, 1);
213 glPixelTransferi( GL_ALPHA_BIAS, 0);
215 // set initial rendering states
216 glShadeModel( GL_SMOOTH);
218 glDepthFunc( GL_LEQUAL);
219 glDepthMask( GL_TRUE);
220 // glDepthRange( FRONT_CLIP, BACK_CLIP);
221 glEnable( GL_DEPTH_TEST);
222 glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
223 glCullFace( GL_FRONT);
224 glEnable( GL_CULL_FACE);
225 glEnable( GL_LIGHTING);
226 // glEnable( GL_LIGHT_MODEL_AMBIENT);
227 glEnable( GL_DITHER);
228 glEnable( GL_COLOR_MATERIAL);
229 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
230 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
231 glAlphaFunc( GL_GREATER, 0.5f);
233 if ( CanInitStereo(stereomode) ) {
234 InitStereo(stereomode);
236 fprintf(stderr, "Failed to initialize stereo, disabling.\n");
237 stereomode = stereoNone;
241 static void toggleFullscreen(){
242 SDL_Surface* screen=SDL_GetVideoSurface();
243 Uint32 flags=screen->flags;
244 screen=SDL_SetVideoMode(0,0,0,flags^SDL_FULLSCREEN);
246 screen=SDL_SetVideoMode(0,0,0,flags);
249 //reload opengl state
251 for(std::vector<TextureInfo>::iterator it=Game::textures.begin(); it!=Game::textures.end(); it++){
254 pgame->text.BuildFont();
255 pgame->LoadScreenTexture();
258 static void sdlEventProc(const SDL_Event &e, Game &game){
260 case SDL_MOUSEMOTION:
261 game.deltah += e.motion.xrel;
262 game.deltav += e.motion.yrel;
265 if ((e.key.keysym.sym == SDLK_g) &&
266 (e.key.keysym.mod & KMOD_CTRL) &&
267 !(SDL_GetVideoSurface()->flags & SDL_FULLSCREEN) ) {
268 SDL_WM_GrabInput( ((SDL_WM_GrabInput(SDL_GRAB_QUERY)==SDL_GRAB_ON) ? SDL_GRAB_OFF:SDL_GRAB_ON) );
269 } else if ( (e.key.keysym.sym == SDLK_RETURN) && (e.key.keysym.mod & KMOD_ALT) ) {
273 case SDL_ACTIVEEVENT:
274 if(e.active.state&SDL_APPINPUTFOCUS){
276 SDL_WM_GrabInput(SDL_GRAB_ON);
279 SDL_WM_GrabInput(SDL_GRAB_OFF);
288 // --------------------------------------------------------------------------
290 static Point gMidPoint;
292 Boolean SetUp (Game & game)
305 DefaultSettings(game);
307 if (!SDL_WasInit(SDL_INIT_VIDEO))
308 if (SDL_Init(SDL_INIT_VIDEO) == -1)
310 fprintf(stderr, "SDL_Init() failed: %s\n", SDL_GetError());
313 if(!LoadSettings(game)) {
314 fprintf(stderr, "Failed to load config, creating default\n");
317 if(kBitsPerPixel!=32&&kBitsPerPixel!=16){
321 if (SDL_GL_LoadLibrary(NULL) == -1)
323 fprintf(stderr, "SDL_GL_LoadLibrary() failed: %s\n", SDL_GetError());
328 SDL_Rect **res = SDL_ListModes(NULL, SDL_FULLSCREEN|SDL_OPENGL);
329 if ( (res == NULL) || (res == ((SDL_Rect **)-1)) || (res[0] == NULL) || (res[0]->w < 640) || (res[0]->h < 480) )
330 res = hardcoded_resolutions;
332 // reverse list (it was sorted biggest to smallest by SDL)...
334 for (count = 0; res[count]; count++)
336 if ((res[count]->w < 640) || (res[count]->h < 480))
337 break; // sane lower limit.
340 static SDL_Rect *resolutions_block = NULL;
341 resolutions_block = (SDL_Rect*) realloc(resolutions_block, sizeof (SDL_Rect) * count);
342 resolutions = (SDL_Rect**) realloc(resolutions, sizeof (SDL_Rect *) * (count + 1));
343 if ((resolutions_block == NULL) || (resolutions == NULL))
346 fprintf(stderr, "Out of memory!\n");
350 resolutions[count--] = NULL;
351 for (int i = 0; count >= 0; i++, count--)
353 memcpy(&resolutions_block[count], res[i], sizeof (SDL_Rect));
354 resolutions[count] = &resolutions_block[count];
357 if (cmdline("showresolutions"))
359 printf("Resolutions we think are okay:\n");
360 for (int i = 0; resolutions[i]; i++)
361 printf(" %d x %d\n", (int) resolutions[i]->w, (int) resolutions[i]->h);
364 Uint32 sdlflags = SDL_OPENGL;
365 //TODO: commented out temporarily
366 //if (!cmdline("windowed"))
367 //sdlflags |= SDL_FULLSCREEN;
369 SDL_WM_SetCaption("Lugaru", "Lugaru");
373 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
374 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
375 #if SDL_VERSION_ATLEAST(1, 2, 10)
376 SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, vblsync);
379 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL)
381 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
382 fprintf(stderr, "forcing 640x480...\n");
384 kContextHeight = 480;
385 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL)
387 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
388 fprintf(stderr, "forcing 640x480 windowed mode...\n");
389 sdlflags &= ~SDL_FULLSCREEN;
390 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL)
392 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
399 if ((SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &dblbuf) == -1) || (!dblbuf))
401 fprintf(stderr, "Failed to get double buffered GL context!\n");
406 if (!lookup_all_glsyms())
412 if (!cmdline("nomousegrab"))
413 SDL_WM_GrabInput(SDL_GRAB_ON);
418 GLint width = kContextWidth;
419 GLint height = kContextHeight;
420 gMidPoint.h = width / 2;
421 gMidPoint.v = height / 2;
425 game.newdetail=detail;
426 game.newscreenwidth=screenwidth;
427 game.newscreenheight=screenheight;
435 static void DoMouse(Game & game)
438 if(mainmenu|| ( (abs(game.deltah)<10*realmultiplier*1000) && (abs(game.deltav)<10*realmultiplier*1000) ))
440 game.deltah *= usermousesensitivity;
441 game.deltav *= usermousesensitivity;
442 game.mousecoordh += game.deltah;
443 game.mousecoordv += game.deltav;
444 if (game.mousecoordh < 0)
445 game.mousecoordh = 0;
446 else if (game.mousecoordh >= kContextWidth)
447 game.mousecoordh = kContextWidth - 1;
448 if (game.mousecoordv < 0)
449 game.mousecoordv = 0;
450 else if (game.mousecoordv >= kContextHeight)
451 game.mousecoordv = kContextHeight - 1;
456 void DoFrameRate (int update)
458 static long frames = 0;
460 static AbsoluteTime time = {0,0};
461 static AbsoluteTime frametime = {0,0};
462 AbsoluteTime currTime = UpTime ();
463 double deltaTime = (float) AbsoluteDeltaToDuration (currTime, frametime);
465 if (0 > deltaTime) // if negative microseconds
466 deltaTime /= -1000000.0;
467 else // else milliseconds
470 multiplier=deltaTime;
471 if(multiplier<.001) multiplier=.001;
472 if(multiplier>10) multiplier=10;
473 if(update) frametime = currTime; // reset for next time interval
475 deltaTime = (float) AbsoluteDeltaToDuration (currTime, time);
477 if (0 > deltaTime) // if negative microseconds
478 deltaTime /= -1000000.0;
479 else // else milliseconds
482 if (0.001 <= deltaTime) // has update interval passed
485 time = currTime; // reset for next time interval
492 void DoUpdate (Game & game)
494 static float sps=200;
496 static float oldmult;
499 if(multiplier>.6)multiplier=.6;
501 game.fps=1/multiplier;
503 count = multiplier*sps;
506 realmultiplier=multiplier;
507 multiplier*=gamespeed;
508 if(difficulty==1)multiplier*=.9;
509 if(difficulty==0)multiplier*=.8;
511 if(game.loading==4)multiplier*=.00001;
512 if(slomo&&!mainmenu)multiplier*=slomospeed;
514 multiplier/=(float)count;
520 for(int i=0;i<count;i++)
526 game.TickOnceAfter();
527 /* - Debug code to test how many channels were active on average per frame
528 static long frames = 0;
530 static AbsoluteTime start = {0,0};
531 AbsoluteTime currTime = UpTime ();
532 static int num_channels = 0;
534 num_channels += OPENAL_GetChannelsPlaying();
535 double deltaTime = (float) AbsoluteDeltaToDuration (currTime, start);
537 if (0 > deltaTime) // if negative microseconds
538 deltaTime /= -1000000.0;
539 else // else milliseconds
547 float avg_channels = (float)num_channels / (float)frames;
549 ofstream opstream("log.txt",ios::app);
550 opstream << "Average frame count: ";
552 opstream << " frames - ";
553 opstream << avg_channels;
554 opstream << " per frame.\n";
564 // --------------------------------------------------------------------------
572 #define GL_FUNC(ret,fn,params,call,rt) p##fn = NULL;
575 // cheat here...static destructors are calling glDeleteTexture() after
576 // the context is destroyed and libGL unloaded by SDL_Quit().
577 pglDeleteTextures = glDeleteTextures_doNothing;
581 // --------------------------------------------------------------------------
583 static bool IsFocused()
585 return ((SDL_GetAppState() & SDL_APPINPUTFOCUS) != 0);
591 // (code lifted from physfs: http://icculus.org/physfs/ ... zlib license.)
592 static char *findBinaryInPath(const char *bin, char *envr)
594 size_t alloc_size = 0;
602 ptr = strchr(start, ':'); /* find next $PATH separator. */
606 size = strlen(start) + strlen(bin) + 2;
607 if (size > alloc_size)
609 char *x = (char *) realloc(exe, size);
621 /* build full binary path... */
623 if ((exe[0] == '\0') || (exe[strlen(exe) - 1] != '/'))
627 if (access(exe, X_OK) == 0) /* Exists as executable? We're done. */
629 strcpy(exe, start); /* i'm lazy. piss off. */
633 start = ptr + 1; /* start points to beginning of next element. */
634 } while (ptr != NULL);
639 return(NULL); /* doesn't exist in path. */
640 } /* findBinaryInPath */
643 char *calcBaseDir(const char *argv0)
645 /* If there isn't a path on argv0, then look through the $PATH for it. */
649 const char *ptr = strrchr((char *)argv0, '/');
650 if (strchr(argv0, '/'))
652 retval = strdup(argv0);
654 *((char *) strrchr(retval, '/')) = '\0';
658 envr = getenv("PATH");
659 if (!envr) return NULL;
661 if (!envr) return NULL;
662 retval = findBinaryInPath(argv0, envr);
667 static inline void chdirToAppPath(const char *argv0)
669 char *dir = calcBaseDir(argv0);
672 #if (defined(__APPLE__) && defined(__MACH__))
673 // Chop off /Contents/MacOS if it's at the end of the string, so we
674 // land in the base of the app bundle.
675 const size_t len = strlen(dir);
676 const char *bundledirs = "/Contents/MacOS";
677 const size_t bundledirslen = strlen(bundledirs);
678 if (len > bundledirslen)
680 char *ptr = (dir + len) - bundledirslen;
681 if (strcasecmp(ptr, bundledirs) == 0)
692 int main(int argc, char **argv)
699 // !!! FIXME: we could use a Win32 API for this. --ryan.
701 chdirToAppPath(argv[0]);
712 //ofstream os("error.txt");
714 //ofstream os("log.txt");
720 while (!gDone&&!game.quit&&(!game.tryquit))
723 //gameFocused = true;
725 // check windows messages
730 if(!game.isWaiting()) {
732 while( SDL_PollEvent( &e ) ){
738 sdlEventProc(e, game);
752 // allow game chance to pause
757 // game is not in focus, give CPU time to other apps by waiting for messages instead of 'peeking'
759 SDL_WaitEvent((SDL_Event*)&evt);
760 if (evt.type == SDL_ACTIVEEVENT && evt.gain == 1)
762 else if (evt.type == SDL_QUIT)
775 catch (const std::exception& error)
779 std::string e = "Caught exception: ";
784 MessageBox(g_windowHandle, error.what(), "ERROR", MB_OK | MB_ICONEXCLAMATION);
794 // --------------------------------------------------------------------------
797 bool LoadImage(const char * fname, TGAImageRec & tex)
799 if ( tex.data == NULL )
802 return load_image(fname, tex);
805 void ScreenShot(const char * fname)
812 static bool load_image(const char *file_name, TGAImageRec &tex)
814 const char *ptr = strrchr((char *)file_name, '.');
817 if (strcasecmp(ptr+1, "png") == 0)
818 return load_png(file_name, tex);
819 else if (strcasecmp(ptr+1, "jpg") == 0)
820 return load_jpg(file_name, tex);
823 STUBBED("Unsupported image type");
828 struct my_error_mgr {
829 struct jpeg_error_mgr pub; /* "public" fields */
830 jmp_buf setjmp_buffer; /* for return to caller */
832 typedef struct my_error_mgr * my_error_ptr;
835 static void my_error_exit(j_common_ptr cinfo)
837 struct my_error_mgr *err = (struct my_error_mgr *)cinfo->err;
838 longjmp(err->setjmp_buffer, 1);
841 /* stolen from public domain example.c code in libjpg distribution. */
842 static bool load_jpg(const char *file_name, TGAImageRec &tex)
844 struct jpeg_decompress_struct cinfo;
845 struct my_error_mgr jerr;
846 JSAMPROW buffer[1]; /* Output row buffer */
847 int row_stride; /* physical row width in output buffer */
848 FILE *infile = fopen(file_name, "rb");
853 cinfo.err = jpeg_std_error(&jerr.pub);
854 jerr.pub.error_exit = my_error_exit;
855 if (setjmp(jerr.setjmp_buffer)) {
856 jpeg_destroy_decompress(&cinfo);
861 jpeg_create_decompress(&cinfo);
862 jpeg_stdio_src(&cinfo, infile);
863 (void) jpeg_read_header(&cinfo, TRUE);
865 cinfo.out_color_space = JCS_RGB;
866 cinfo.quantize_colors = 0;
867 (void) jpeg_calc_output_dimensions(&cinfo);
868 (void) jpeg_start_decompress(&cinfo);
870 row_stride = cinfo.output_width * cinfo.output_components;
871 tex.sizeX = cinfo.output_width;
872 tex.sizeY = cinfo.output_height;
875 while (cinfo.output_scanline < cinfo.output_height) {
876 buffer[0] = (JSAMPROW)(char *)tex.data +
877 ((cinfo.output_height-1) - cinfo.output_scanline) * row_stride;
878 (void) jpeg_read_scanlines(&cinfo, buffer, 1);
881 (void) jpeg_finish_decompress(&cinfo);
882 jpeg_destroy_decompress(&cinfo);
889 /* stolen from public domain example.c code in libpng distribution. */
890 static bool load_png(const char *file_name, TGAImageRec &tex)
892 bool hasalpha = false;
893 png_structp png_ptr = NULL;
894 png_infop info_ptr = NULL;
895 png_uint_32 width, height;
896 int bit_depth, color_type, interlace_type;
897 png_byte **rows = NULL;
899 png_byte **row_pointers = NULL;
900 FILE *fp = fopen(file_name, "rb");
905 png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
909 info_ptr = png_create_info_struct(png_ptr);
910 if (info_ptr == NULL)
913 if (setjmp(png_jmpbuf(png_ptr)))
916 png_init_io(png_ptr, fp);
917 png_read_png(png_ptr, info_ptr,
918 PNG_TRANSFORM_STRIP_16 | PNG_TRANSFORM_PACKING,
920 png_get_IHDR(png_ptr, info_ptr, &width, &height,
921 &bit_depth, &color_type, &interlace_type, NULL, NULL);
923 if (bit_depth != 8) // transform SHOULD handle this...
926 if (color_type & PNG_COLOR_MASK_PALETTE) // !!! FIXME?
929 if ((color_type & PNG_COLOR_MASK_COLOR) == 0) // !!! FIXME?
932 hasalpha = ((color_type & PNG_COLOR_MASK_ALPHA) != 0);
933 row_pointers = png_get_rows(png_ptr, info_ptr);
939 png_byte *dst = tex.data;
940 for (int i = height-1; i >= 0; i--)
942 png_byte *src = row_pointers[i];
943 for (int j = 0; j < width; j++)
957 png_byte *dst = tex.data;
958 int pitch = width * 4;
959 for (int i = height-1; i >= 0; i--, dst += pitch)
960 memcpy(dst, row_pointers[i], pitch);
969 png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
976 bool save_image(const char *file_name)
978 const char *ptr = strrchr((char *)file_name, '.');
981 if (strcasecmp(ptr+1, "png") == 0)
982 return save_png(file_name);
985 STUBBED("Unsupported image type");
990 static bool save_png(const char *file_name)
993 png_structp png_ptr = NULL;
994 png_infop info_ptr = NULL;
997 fp = fopen(file_name, "wb");
1001 png_bytep *row_pointers = new png_bytep[kContextHeight];
1002 png_bytep screenshot = new png_byte[kContextWidth * kContextHeight * 3];
1003 if ((!screenshot) || (!row_pointers))
1007 glReadPixels(0, 0, kContextWidth, kContextHeight,
1008 GL_RGB, GL_UNSIGNED_BYTE, screenshot);
1009 if (glGetError() != GL_NO_ERROR)
1012 for (int i = 0; i < kContextHeight; i++)
1013 row_pointers[i] = screenshot + ((kContextWidth * ((kContextHeight-1) - i)) * 3);
1015 png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
1016 if (png_ptr == NULL)
1019 info_ptr = png_create_info_struct(png_ptr);
1020 if (info_ptr == NULL)
1023 if (setjmp(png_jmpbuf(png_ptr)))
1026 png_init_io(png_ptr, fp);
1028 if (setjmp(png_jmpbuf(png_ptr)))
1031 png_set_IHDR(png_ptr, info_ptr, kContextWidth, kContextHeight,
1032 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
1033 PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
1035 png_write_info(png_ptr, info_ptr);
1037 if (setjmp(png_jmpbuf(png_ptr)))
1040 png_write_image(png_ptr, row_pointers);
1042 if (setjmp(png_jmpbuf(png_ptr)))
1045 png_write_end(png_ptr, NULL);
1049 png_destroy_write_struct(&png_ptr, &info_ptr);
1050 delete[] screenshot;
1051 delete[] row_pointers;
1055 unlink(ConvertFileName(file_name));