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
50 static bool load_image(const char * fname, TGAImageRec & tex);
51 static bool load_png(const char * fname, TGAImageRec & tex);
52 static bool load_jpg(const char * fname, TGAImageRec & tex);
53 bool save_image(const char * fname);
54 static bool save_png(const char * fname);
57 #include "openal_wrapper.h"
59 extern float multiplier;
61 extern float realmultiplier;
63 extern bool cellophane;
64 extern float texdetail;
68 extern bool stillloading;
70 /*extern*/ bool gameFocused;
72 extern float slomospeed;
73 extern float slomofreq;
83 #include "MacCompatibility.h"
88 #include "win-res/resource.h"
93 SDL_Rect **resolutions = NULL;
94 static SDL_Rect rect_1024_768 = { 0, 0, 1024, 768 };
95 static SDL_Rect rect_800_600 = { 0, 0, 800, 600 };
96 static SDL_Rect rect_640_480 = { 0, 0, 640, 480 };
97 static SDL_Rect *hardcoded_resolutions[] = {
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;
167 static int _argc = 0;
168 static char **_argv = NULL;
171 bool cmdline(const char *cmd)
173 for (int i = 1; i < _argc; i++)
175 char *arg = _argv[i];
178 if (strcasecmp(arg, cmd) == 0)
185 //-----------------------------------------------------------------------------------------------------------------------
190 glClear( GL_COLOR_BUFFER_BIT );
194 glDisable( GL_ALPHA_TEST);
195 glDisable( GL_BLEND);
196 glDisable( GL_DEPTH_TEST);
197 // glDisable( GL_DITHER);
199 glDisable( GL_LIGHTING);
200 glDisable( GL_LOGIC_OP);
201 glDisable( GL_TEXTURE_1D);
202 glDisable( GL_TEXTURE_2D);
203 glPixelTransferi( GL_MAP_COLOR, GL_FALSE);
204 glPixelTransferi( GL_RED_SCALE, 1);
205 glPixelTransferi( GL_RED_BIAS, 0);
206 glPixelTransferi( GL_GREEN_SCALE, 1);
207 glPixelTransferi( GL_GREEN_BIAS, 0);
208 glPixelTransferi( GL_BLUE_SCALE, 1);
209 glPixelTransferi( GL_BLUE_BIAS, 0);
210 glPixelTransferi( GL_ALPHA_SCALE, 1);
211 glPixelTransferi( GL_ALPHA_BIAS, 0);
213 // set initial rendering states
214 glShadeModel( GL_SMOOTH);
216 glDepthFunc( GL_LEQUAL);
217 glDepthMask( GL_TRUE);
218 // glDepthRange( FRONT_CLIP, BACK_CLIP);
219 glEnable( GL_DEPTH_TEST);
220 glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
221 glCullFace( GL_FRONT);
222 glEnable( GL_CULL_FACE);
223 glEnable( GL_LIGHTING);
224 // glEnable( GL_LIGHT_MODEL_AMBIENT);
225 glEnable( GL_DITHER);
226 glEnable( GL_COLOR_MATERIAL);
227 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
228 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
229 glAlphaFunc( GL_GREATER, 0.5f);
231 if ( CanInitStereo(stereomode) ) {
232 InitStereo(stereomode);
234 fprintf(stderr, "Failed to initialize stereo, disabling.\n");
235 stereomode = stereoNone;
239 static void toggleFullscreen(){
240 if(!SDL_WM_ToggleFullScreen(SDL_GetVideoSurface())){
241 SDL_Surface* screen=SDL_GetVideoSurface();
242 Uint32 flags=screen->flags;
243 screen=SDL_SetVideoMode(0,0,0,flags^SDL_FULLSCREEN);
245 screen=SDL_SetVideoMode(0,0,0,flags);
248 //reload opengl state
250 Texture::reloadAll();
261 static void sdlEventProc(const SDL_Event &e)
264 case SDL_MOUSEMOTION:
265 deltah += e.motion.xrel;
266 deltav += e.motion.yrel;
270 if ((e.key.keysym.sym == SDLK_g) &&
271 (e.key.keysym.mod & KMOD_CTRL) &&
272 !(SDL_GetVideoSurface()->flags & SDL_FULLSCREEN) ) {
273 SDL_WM_GrabInput( ((SDL_WM_GrabInput(SDL_GRAB_QUERY)==SDL_GRAB_ON) ? SDL_GRAB_OFF:SDL_GRAB_ON) );
274 } else if ( (e.key.keysym.sym == SDLK_RETURN) && (e.key.keysym.mod & KMOD_ALT) ) {
283 // --------------------------------------------------------------------------
285 static Point gMidPoint;
302 if (!SDL_WasInit(SDL_INIT_VIDEO))
303 if (SDL_Init(SDL_INIT_VIDEO) == -1)
305 fprintf(stderr, "SDL_Init() failed: %s\n", SDL_GetError());
308 if(!LoadSettings()) {
309 fprintf(stderr, "Failed to load config, creating default\n");
312 if(kBitsPerPixel!=32&&kBitsPerPixel!=16){
316 if (SDL_GL_LoadLibrary(NULL) == -1)
318 fprintf(stderr, "SDL_GL_LoadLibrary() failed: %s\n", SDL_GetError());
323 SDL_Rect **res = SDL_ListModes(NULL, SDL_FULLSCREEN|SDL_OPENGL);
324 if ( (res == NULL) || (res == ((SDL_Rect **)-1)) || (res[0] == NULL) || (res[0]->w < 640) || (res[0]->h < 480) )
325 res = hardcoded_resolutions;
327 // reverse list (it was sorted biggest to smallest by SDL)...
329 for (count = 0; res[count]; count++)
331 if ((res[count]->w < 640) || (res[count]->h < 480))
332 break; // sane lower limit.
335 static SDL_Rect *resolutions_block = NULL;
336 resolutions_block = (SDL_Rect*) realloc(resolutions_block, sizeof (SDL_Rect) * count);
337 resolutions = (SDL_Rect**) realloc(resolutions, sizeof (SDL_Rect *) * (count + 1));
338 if ((resolutions_block == NULL) || (resolutions == NULL))
341 fprintf(stderr, "Out of memory!\n");
345 resolutions[count--] = NULL;
346 for (int i = 0; count >= 0; i++, count--)
348 memcpy(&resolutions_block[count], res[i], sizeof (SDL_Rect));
349 resolutions[count] = &resolutions_block[count];
352 if (cmdline("showresolutions"))
354 printf("Resolutions we think are okay:\n");
355 for (int i = 0; resolutions[i]; i++)
356 printf(" %d x %d\n", (int) resolutions[i]->w, (int) resolutions[i]->h);
359 Uint32 sdlflags = SDL_OPENGL;
361 if (!cmdline("windowed"))
362 sdlflags |= SDL_FULLSCREEN;
364 SDL_WM_SetCaption("Lugaru", "Lugaru");
368 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
369 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
370 #if SDL_VERSION_ATLEAST(1, 2, 10)
371 SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, vblsync);
374 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL)
376 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
377 fprintf(stderr, "forcing 640x480...\n");
379 kContextHeight = 480;
380 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL)
382 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
383 fprintf(stderr, "forcing 640x480 windowed mode...\n");
384 sdlflags &= ~SDL_FULLSCREEN;
385 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL)
387 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
394 if ((SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &dblbuf) == -1) || (!dblbuf))
396 fprintf(stderr, "Failed to get double buffered GL context!\n");
401 if (!lookup_all_glsyms())
407 if (!cmdline("nomousegrab"))
408 SDL_WM_GrabInput(SDL_GRAB_ON);
413 GLint width = kContextWidth;
414 GLint height = kContextHeight;
415 gMidPoint.h = width / 2;
416 gMidPoint.v = height / 2;
421 newscreenwidth=screenwidth;
422 newscreenheight=screenheight;
430 static void DoMouse()
433 if(mainmenu|| ( (abs(deltah)<10*realmultiplier*1000) && (abs(deltav)<10*realmultiplier*1000) ))
435 deltah *= usermousesensitivity;
436 deltav *= usermousesensitivity;
437 mousecoordh += deltah;
438 mousecoordv += deltav;
441 else if (mousecoordh >= kContextWidth)
442 mousecoordh = kContextWidth - 1;
445 else if (mousecoordv >= kContextHeight)
446 mousecoordv = kContextHeight - 1;
451 void DoFrameRate (int update)
453 static long frames = 0;
455 static AbsoluteTime time = {0,0};
456 static AbsoluteTime frametime = {0,0};
457 AbsoluteTime currTime = UpTime ();
458 double deltaTime = (float) AbsoluteDeltaToDuration (currTime, frametime);
460 if (0 > deltaTime) // if negative microseconds
461 deltaTime /= -1000000.0;
462 else // else milliseconds
465 multiplier=deltaTime;
466 if(multiplier<.001) multiplier=.001;
467 if(multiplier>10) multiplier=10;
468 if(update) frametime = currTime; // reset for next time interval
470 deltaTime = (float) AbsoluteDeltaToDuration (currTime, time);
472 if (0 > deltaTime) // if negative microseconds
473 deltaTime /= -1000000.0;
474 else // else milliseconds
477 if (0.001 <= deltaTime) // has update interval passed
480 time = currTime; // reset for next time interval
489 static float sps=200;
491 static float oldmult;
494 if(multiplier>.6)multiplier=.6;
498 count = multiplier*sps;
501 realmultiplier=multiplier;
502 multiplier*=gamespeed;
503 if(difficulty==1)multiplier*=.9;
504 if(difficulty==0)multiplier*=.8;
506 if(loading==4)multiplier*=.00001;
507 if(slomo&&!mainmenu)multiplier*=slomospeed;
509 multiplier/=(float)count;
515 for(int i=0;i<count;i++)
522 /* - Debug code to test how many channels were active on average per frame
523 static long frames = 0;
525 static AbsoluteTime start = {0,0};
526 AbsoluteTime currTime = UpTime ();
527 static int num_channels = 0;
529 num_channels += OPENAL_GetChannelsPlaying();
530 double deltaTime = (float) AbsoluteDeltaToDuration (currTime, start);
532 if (0 > deltaTime) // if negative microseconds
533 deltaTime /= -1000000.0;
534 else // else milliseconds
542 float avg_channels = (float)num_channels / (float)frames;
544 ofstream opstream("log.txt",ios::app);
545 opstream << "Average frame count: ";
547 opstream << " frames - ";
548 opstream << avg_channels;
549 opstream << " per frame.\n";
556 if ( stereomode == stereoNone ) {
557 DrawGLScene(stereoCenter);
559 DrawGLScene(stereoLeft);
560 DrawGLScene(stereoRight);
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]);
711 //ofstream os("error.txt");
713 //ofstream os("log.txt");
719 while (!gDone&&!tryquit)
725 // check windows messages
732 while( SDL_PollEvent( &e ) )
734 if( e.type == SDL_QUIT )
750 // allow game chance to pause
755 // game is not in focus, give CPU time to other apps by waiting for messages instead of 'peeking'
757 SDL_WaitEvent((SDL_Event*)&evt);
758 if (evt.type == SDL_ACTIVEEVENT && evt.gain == 1)
760 else if (evt.type == SDL_QUIT)
772 catch (const std::exception& error)
776 std::string e = "Caught exception: ";
781 MessageBox(g_windowHandle, error.what(), "ERROR", MB_OK | MB_ICONEXCLAMATION);
791 // --------------------------------------------------------------------------
794 bool LoadImage(const char * fname, TGAImageRec & tex)
796 if ( tex.data == NULL )
799 return load_image(fname, tex);
802 void ScreenShot(const char * fname)
809 static bool load_image(const char *file_name, TGAImageRec &tex)
811 const char *ptr = strrchr((char *)file_name, '.');
814 if (strcasecmp(ptr+1, "png") == 0)
815 return load_png(file_name, tex);
816 else if (strcasecmp(ptr+1, "jpg") == 0)
817 return load_jpg(file_name, tex);
820 STUBBED("Unsupported image type");
825 struct my_error_mgr {
826 struct jpeg_error_mgr pub; /* "public" fields */
827 jmp_buf setjmp_buffer; /* for return to caller */
829 typedef struct my_error_mgr * my_error_ptr;
832 static void my_error_exit(j_common_ptr cinfo)
834 struct my_error_mgr *err = (struct my_error_mgr *)cinfo->err;
835 longjmp(err->setjmp_buffer, 1);
838 /* stolen from public domain example.c code in libjpg distribution. */
839 static bool load_jpg(const char *file_name, TGAImageRec &tex)
841 struct jpeg_decompress_struct cinfo;
842 struct my_error_mgr jerr;
843 JSAMPROW buffer[1]; /* Output row buffer */
844 int row_stride; /* physical row width in output buffer */
845 FILE *infile = fopen(file_name, "rb");
850 cinfo.err = jpeg_std_error(&jerr.pub);
851 jerr.pub.error_exit = my_error_exit;
852 if (setjmp(jerr.setjmp_buffer)) {
853 jpeg_destroy_decompress(&cinfo);
858 jpeg_create_decompress(&cinfo);
859 jpeg_stdio_src(&cinfo, infile);
860 (void) jpeg_read_header(&cinfo, TRUE);
862 cinfo.out_color_space = JCS_RGB;
863 cinfo.quantize_colors = 0;
864 (void) jpeg_calc_output_dimensions(&cinfo);
865 (void) jpeg_start_decompress(&cinfo);
867 row_stride = cinfo.output_width * cinfo.output_components;
868 tex.sizeX = cinfo.output_width;
869 tex.sizeY = cinfo.output_height;
872 while (cinfo.output_scanline < cinfo.output_height) {
873 buffer[0] = (JSAMPROW)(char *)tex.data +
874 ((cinfo.output_height-1) - cinfo.output_scanline) * row_stride;
875 (void) jpeg_read_scanlines(&cinfo, buffer, 1);
878 (void) jpeg_finish_decompress(&cinfo);
879 jpeg_destroy_decompress(&cinfo);
886 /* stolen from public domain example.c code in libpng distribution. */
887 static bool load_png(const char *file_name, TGAImageRec &tex)
889 bool hasalpha = false;
890 png_structp png_ptr = NULL;
891 png_infop info_ptr = NULL;
892 png_uint_32 width, height;
893 int bit_depth, color_type, interlace_type;
894 png_byte **rows = NULL;
896 png_byte **row_pointers = NULL;
897 FILE *fp = fopen(file_name, "rb");
900 cerr << file_name << " not found" << endl;
904 png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
908 info_ptr = png_create_info_struct(png_ptr);
909 if (info_ptr == NULL)
912 if (setjmp(png_jmpbuf(png_ptr)))
915 png_init_io(png_ptr, fp);
916 png_read_png(png_ptr, info_ptr,
917 PNG_TRANSFORM_STRIP_16 | PNG_TRANSFORM_PACKING,
919 png_get_IHDR(png_ptr, info_ptr, &width, &height,
920 &bit_depth, &color_type, &interlace_type, NULL, NULL);
922 if (bit_depth != 8) // transform SHOULD handle this...
925 if (color_type & PNG_COLOR_MASK_PALETTE) // !!! FIXME?
928 if ((color_type & PNG_COLOR_MASK_COLOR) == 0) // !!! FIXME?
931 hasalpha = ((color_type & PNG_COLOR_MASK_ALPHA) != 0);
932 row_pointers = png_get_rows(png_ptr, info_ptr);
938 png_byte *dst = tex.data;
939 for (int i = height-1; i >= 0; i--)
941 png_byte *src = row_pointers[i];
942 for (int j = 0; j < width; j++)
956 png_byte *dst = tex.data;
957 int pitch = width * 4;
958 for (int i = height-1; i >= 0; i--, dst += pitch)
959 memcpy(dst, row_pointers[i], pitch);
969 cerr << "There was a problem loading " << file_name << endl;
971 png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
978 bool save_image(const char *file_name)
980 const char *ptr = strrchr((char *)file_name, '.');
983 if (strcasecmp(ptr+1, "png") == 0)
984 return save_png(file_name);
987 STUBBED("Unsupported image type");
992 static bool save_png(const char *file_name)
995 png_structp png_ptr = NULL;
996 png_infop info_ptr = NULL;
999 fp = fopen(file_name, "wb");
1003 png_bytep *row_pointers = new png_bytep[kContextHeight];
1004 png_bytep screenshot = new png_byte[kContextWidth * kContextHeight * 3];
1005 if ((!screenshot) || (!row_pointers))
1009 glReadPixels(0, 0, kContextWidth, kContextHeight,
1010 GL_RGB, GL_UNSIGNED_BYTE, screenshot);
1011 if (glGetError() != GL_NO_ERROR)
1014 for (int i = 0; i < kContextHeight; i++)
1015 row_pointers[i] = screenshot + ((kContextWidth * ((kContextHeight-1) - i)) * 3);
1017 png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
1018 if (png_ptr == NULL)
1021 info_ptr = png_create_info_struct(png_ptr);
1022 if (info_ptr == NULL)
1025 if (setjmp(png_jmpbuf(png_ptr)))
1028 png_init_io(png_ptr, fp);
1030 if (setjmp(png_jmpbuf(png_ptr)))
1033 png_set_IHDR(png_ptr, info_ptr, kContextWidth, kContextHeight,
1034 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
1035 PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
1037 png_write_info(png_ptr, info_ptr);
1039 if (setjmp(png_jmpbuf(png_ptr)))
1042 png_write_image(png_ptr, row_pointers);
1044 if (setjmp(png_jmpbuf(png_ptr)))
1047 png_write_end(png_ptr, NULL);
1051 png_destroy_write_struct(&png_ptr, &info_ptr);
1052 delete[] screenshot;
1053 delete[] row_pointers;
1057 unlink(ConvertFileName(file_name));