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;
73 extern float slomospeed;
74 extern float slomofreq;
84 #include "MacCompatibility.h"
89 #include "win-res/resource.h"
94 SDL_Rect **resolutions = NULL;
95 static SDL_Rect rect_1024_768 = { 0, 0, 1024, 768 };
96 static SDL_Rect rect_800_600 = { 0, 0, 800, 600 };
97 static SDL_Rect rect_640_480 = { 0, 0, 640, 480 };
98 static SDL_Rect *hardcoded_resolutions[] = {
110 // statics/globals (internal only) ------------------------------------------
113 #pragma warning(push)
114 #pragma warning(disable: 4273)
117 #define GL_FUNC(ret,fn,params,call,rt) \
119 static ret (GLAPIENTRY *p##fn) params = NULL; \
120 ret GLAPIENTRY fn params { rt p##fn call; } \
129 static bool lookup_glsym(const char *funcname, void **func)
131 *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++) {
174 char *arg = _argv[i];
177 if (strcasecmp(arg, cmd) == 0)
184 //-----------------------------------------------------------------------------------------------------------------------
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()
241 if (!SDL_WM_ToggleFullScreen(SDL_GetVideoSurface())) {
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 Texture::reloadAll();
262 static void sdlEventProc(const SDL_Event &e)
265 case SDL_MOUSEMOTION:
266 deltah += e.motion.xrel;
267 deltav += e.motion.yrel;
271 if ((e.key.keysym.sym == SDLK_g) &&
272 (e.key.keysym.mod & KMOD_CTRL) &&
273 !(SDL_GetVideoSurface()->flags & SDL_FULLSCREEN) ) {
274 SDL_WM_GrabInput( ((SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_ON) ? SDL_GRAB_OFF : SDL_GRAB_ON) );
275 } else if ( (e.key.keysym.sym == SDLK_RETURN) && (e.key.keysym.mod & KMOD_ALT) ) {
284 // --------------------------------------------------------------------------
286 static Point gMidPoint;
303 if (!SDL_WasInit(SDL_INIT_VIDEO))
304 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) {
317 fprintf(stderr, "SDL_GL_LoadLibrary() failed: %s\n", SDL_GetError());
322 SDL_Rect **res = SDL_ListModes(NULL, SDL_FULLSCREEN | SDL_OPENGL);
323 if ( (res == NULL) || (res == ((SDL_Rect **) - 1)) || (res[0] == NULL) || (res[0]->w < 640) || (res[0]->h < 480) )
324 res = hardcoded_resolutions;
326 // reverse list (it was sorted biggest to smallest by SDL)...
328 for (count = 0; res[count]; count++) {
329 if ((res[count]->w < 640) || (res[count]->h < 480))
330 break; // sane lower limit.
333 static SDL_Rect *resolutions_block = NULL;
334 resolutions_block = (SDL_Rect*) realloc(resolutions_block, sizeof (SDL_Rect) * count);
335 resolutions = (SDL_Rect**) realloc(resolutions, sizeof (SDL_Rect *) * (count + 1));
336 if ((resolutions_block == NULL) || (resolutions == NULL)) {
338 fprintf(stderr, "Out of memory!\n");
342 resolutions[count--] = NULL;
343 for (int i = 0; count >= 0; i++, count--) {
344 memcpy(&resolutions_block[count], res[i], sizeof (SDL_Rect));
345 resolutions[count] = &resolutions_block[count];
348 if (cmdline("showresolutions")) {
349 printf("Resolutions we think are okay:\n");
350 for (int i = 0; resolutions[i]; i++)
351 printf(" %d x %d\n", (int) resolutions[i]->w, (int) resolutions[i]->h);
354 Uint32 sdlflags = SDL_OPENGL;
356 if (!cmdline("windowed"))
357 sdlflags |= SDL_FULLSCREEN;
359 SDL_WM_SetCaption("Lugaru", "Lugaru");
363 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
364 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
365 #if SDL_VERSION_ATLEAST(1, 2, 10)
366 SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, vblsync);
369 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL) {
370 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
371 fprintf(stderr, "forcing 640x480...\n");
373 kContextHeight = 480;
374 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL) {
375 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
376 fprintf(stderr, "forcing 640x480 windowed mode...\n");
377 sdlflags &= ~SDL_FULLSCREEN;
378 if (SDL_SetVideoMode(kContextWidth, kContextHeight, 0, sdlflags) == NULL) {
379 fprintf(stderr, "SDL_SetVideoMode() failed: %s\n", SDL_GetError());
386 if ((SDL_GL_GetAttribute(SDL_GL_DOUBLEBUFFER, &dblbuf) == -1) || (!dblbuf)) {
387 fprintf(stderr, "Failed to get double buffered GL context!\n");
392 if (!lookup_all_glsyms()) {
397 if (!cmdline("nomousegrab"))
398 SDL_WM_GrabInput(SDL_GRAB_ON);
403 GLint width = kContextWidth;
404 GLint height = kContextHeight;
405 gMidPoint.h = width / 2;
406 gMidPoint.v = height / 2;
408 screenheight = height;
411 newscreenwidth = screenwidth;
412 newscreenheight = screenheight;
420 static void DoMouse()
423 if (mainmenu || ( (abs(deltah) < 10 * realmultiplier * 1000) && (abs(deltav) < 10 * realmultiplier * 1000) )) {
424 deltah *= usermousesensitivity;
425 deltav *= usermousesensitivity;
426 mousecoordh += deltah;
427 mousecoordv += deltav;
430 else if (mousecoordh >= kContextWidth)
431 mousecoordh = kContextWidth - 1;
434 else if (mousecoordv >= kContextHeight)
435 mousecoordv = kContextHeight - 1;
440 void DoFrameRate (int update)
442 static long frames = 0;
444 static AbsoluteTime time = {0, 0};
445 static AbsoluteTime frametime = {0, 0};
446 AbsoluteTime currTime = UpTime ();
447 double deltaTime = (float) AbsoluteDeltaToDuration (currTime, frametime);
449 if (0 > deltaTime) // if negative microseconds
450 deltaTime /= -1000000.0;
451 else // else milliseconds
454 multiplier = deltaTime;
455 if (multiplier < .001) multiplier = .001;
456 if (multiplier > 10) multiplier = 10;
457 if (update) frametime = currTime; // reset for next time interval
459 deltaTime = (float) AbsoluteDeltaToDuration (currTime, time);
461 if (0 > deltaTime) // if negative microseconds
462 deltaTime /= -1000000.0;
463 else // else milliseconds
466 if (0.001 <= deltaTime) { // has update interval passed
468 time = currTime; // reset for next time interval
477 static float sps = 200;
479 static float oldmult;
482 if (multiplier > .6)multiplier = .6;
484 fps = 1 / multiplier;
486 count = multiplier * sps;
487 if (count < 2)count = 2;
489 realmultiplier = multiplier;
490 multiplier *= gamespeed;
491 if (difficulty == 1)multiplier *= .9;
492 if (difficulty == 0)multiplier *= .8;
494 if (loading == 4)multiplier *= .00001;
495 if (slomo && !mainmenu)multiplier *= slomospeed;
496 oldmult = multiplier;
497 multiplier /= (float)count;
503 for (int i = 0; i < count; i++) {
506 multiplier = oldmult;
509 /* - Debug code to test how many channels were active on average per frame
510 static long frames = 0;
512 static AbsoluteTime start = {0,0};
513 AbsoluteTime currTime = UpTime ();
514 static int num_channels = 0;
516 num_channels += OPENAL_GetChannelsPlaying();
517 double deltaTime = (float) AbsoluteDeltaToDuration (currTime, start);
519 if (0 > deltaTime) // if negative microseconds
520 deltaTime /= -1000000.0;
521 else // else milliseconds
529 float avg_channels = (float)num_channels / (float)frames;
531 ofstream opstream("log.txt",ios::app);
532 opstream << "Average frame count: ";
534 opstream << " frames - ";
535 opstream << avg_channels;
536 opstream << " per frame.\n";
543 if ( stereomode == stereoNone ) {
544 DrawGLScene(stereoCenter);
546 DrawGLScene(stereoLeft);
547 DrawGLScene(stereoRight);
551 // --------------------------------------------------------------------------
559 #define GL_FUNC(ret,fn,params,call,rt) p##fn = NULL;
562 // cheat here...static destructors are calling glDeleteTexture() after
563 // the context is destroyed and libGL unloaded by SDL_Quit().
564 pglDeleteTextures = glDeleteTextures_doNothing;
568 // --------------------------------------------------------------------------
570 static bool IsFocused()
572 return ((SDL_GetAppState() & SDL_APPINPUTFOCUS) != 0);
578 // (code lifted from physfs: http://icculus.org/physfs/ ... zlib license.)
579 static char *findBinaryInPath(const char *bin, char *envr)
581 size_t alloc_size = 0;
588 ptr = strchr(start, ':'); /* find next $PATH separator. */
592 size = strlen(start) + strlen(bin) + 2;
593 if (size > alloc_size) {
594 char *x = (char *) realloc(exe, size);
605 /* build full binary path... */
607 if ((exe[0] == '\0') || (exe[strlen(exe) - 1] != '/'))
611 if (access(exe, X_OK) == 0) { /* Exists as executable? We're done. */
612 strcpy(exe, start); /* i'm lazy. piss off. */
616 start = ptr + 1; /* start points to beginning of next element. */
617 } while (ptr != NULL);
622 return(NULL); /* doesn't exist in path. */
623 } /* findBinaryInPath */
626 char *calcBaseDir(const char *argv0)
628 /* If there isn't a path on argv0, then look through the $PATH for it. */
632 const char *ptr = strrchr((char *)argv0, '/');
633 if (strchr(argv0, '/')) {
634 retval = strdup(argv0);
636 *((char *) strrchr(retval, '/')) = '\0';
640 envr = getenv("PATH");
641 if (!envr) return NULL;
643 if (!envr) return NULL;
644 retval = findBinaryInPath(argv0, envr);
649 static inline void chdirToAppPath(const char *argv0)
651 char *dir = calcBaseDir(argv0);
653 #if (defined(__APPLE__) && defined(__MACH__))
654 // Chop off /Contents/MacOS if it's at the end of the string, so we
655 // land in the base of the app bundle.
656 const size_t len = strlen(dir);
657 const char *bundledirs = "/Contents/MacOS";
658 const size_t bundledirslen = strlen(bundledirs);
659 if (len > bundledirslen) {
660 char *ptr = (dir + len) - bundledirslen;
661 if (strcasecmp(ptr, bundledirs) == 0)
672 int main(int argc, char **argv)
679 // !!! FIXME: we could use a Win32 API for this. --ryan.
681 chdirToAppPath(argv[0]);
690 //ofstream os("error.txt");
692 //ofstream os("log.txt");
698 while (!gDone && !tryquit) {
702 // check windows messages
709 while ( SDL_PollEvent( &e ) ) {
710 if ( e.type == SDL_QUIT ) {
722 // allow game chance to pause
727 // game is not in focus, give CPU time to other apps by waiting for messages instead of 'peeking'
729 SDL_WaitEvent((SDL_Event*)&evt);
730 if (evt.type == SDL_ACTIVEEVENT && evt.gain == 1)
732 else if (evt.type == SDL_QUIT)
743 } catch (const std::exception& error) {
746 std::string e = "Caught exception: ";
751 MessageBox(g_windowHandle, error.what(), "ERROR", MB_OK | MB_ICONEXCLAMATION);
761 // --------------------------------------------------------------------------
764 bool LoadImage(const char * fname, TGAImageRec & tex)
766 if ( tex.data == NULL )
769 return load_image(fname, tex);
772 void ScreenShot(const char * fname)
779 static bool load_image(const char *file_name, TGAImageRec &tex)
781 const char *ptr = strrchr((char *)file_name, '.');
783 if (strcasecmp(ptr + 1, "png") == 0)
784 return load_png(file_name, tex);
785 else if (strcasecmp(ptr + 1, "jpg") == 0)
786 return load_jpg(file_name, tex);
789 STUBBED("Unsupported image type");
794 struct my_error_mgr {
795 struct jpeg_error_mgr pub; /* "public" fields */
796 jmp_buf setjmp_buffer; /* for return to caller */
798 typedef struct my_error_mgr * my_error_ptr;
801 static void my_error_exit(j_common_ptr cinfo)
803 struct my_error_mgr *err = (struct my_error_mgr *)cinfo->err;
804 longjmp(err->setjmp_buffer, 1);
807 /* stolen from public domain example.c code in libjpg distribution. */
808 static bool load_jpg(const char *file_name, TGAImageRec &tex)
810 struct jpeg_decompress_struct cinfo;
811 struct my_error_mgr jerr;
812 JSAMPROW buffer[1]; /* Output row buffer */
813 int row_stride; /* physical row width in output buffer */
814 FILE *infile = fopen(file_name, "rb");
819 cinfo.err = jpeg_std_error(&jerr.pub);
820 jerr.pub.error_exit = my_error_exit;
821 if (setjmp(jerr.setjmp_buffer)) {
822 jpeg_destroy_decompress(&cinfo);
827 jpeg_create_decompress(&cinfo);
828 jpeg_stdio_src(&cinfo, infile);
829 (void) jpeg_read_header(&cinfo, TRUE);
831 cinfo.out_color_space = JCS_RGB;
832 cinfo.quantize_colors = 0;
833 (void) jpeg_calc_output_dimensions(&cinfo);
834 (void) jpeg_start_decompress(&cinfo);
836 row_stride = cinfo.output_width * cinfo.output_components;
837 tex.sizeX = cinfo.output_width;
838 tex.sizeY = cinfo.output_height;
841 while (cinfo.output_scanline < cinfo.output_height) {
842 buffer[0] = (JSAMPROW)(char *)tex.data +
843 ((cinfo.output_height - 1) - cinfo.output_scanline) * row_stride;
844 (void) jpeg_read_scanlines(&cinfo, buffer, 1);
847 (void) jpeg_finish_decompress(&cinfo);
848 jpeg_destroy_decompress(&cinfo);
855 /* stolen from public domain example.c code in libpng distribution. */
856 static bool load_png(const char *file_name, TGAImageRec &tex)
858 bool hasalpha = false;
859 png_structp png_ptr = NULL;
860 png_infop info_ptr = NULL;
861 png_uint_32 width, height;
862 int bit_depth, color_type, interlace_type;
863 png_byte **rows = NULL;
865 png_byte **row_pointers = NULL;
866 FILE *fp = fopen(file_name, "rb");
869 cerr << file_name << " not found" << endl;
873 png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
877 info_ptr = png_create_info_struct(png_ptr);
878 if (info_ptr == NULL)
881 if (setjmp(png_jmpbuf(png_ptr)))
884 png_init_io(png_ptr, fp);
885 png_read_png(png_ptr, info_ptr,
886 PNG_TRANSFORM_STRIP_16 | PNG_TRANSFORM_PACKING,
888 png_get_IHDR(png_ptr, info_ptr, &width, &height,
889 &bit_depth, &color_type, &interlace_type, NULL, NULL);
891 if (bit_depth != 8) // transform SHOULD handle this...
894 if (color_type & PNG_COLOR_MASK_PALETTE) // !!! FIXME?
897 if ((color_type & PNG_COLOR_MASK_COLOR) == 0) // !!! FIXME?
900 hasalpha = ((color_type & PNG_COLOR_MASK_ALPHA) != 0);
901 row_pointers = png_get_rows(png_ptr, info_ptr);
906 png_byte *dst = tex.data;
907 for (int i = height - 1; i >= 0; i--) {
908 png_byte *src = row_pointers[i];
909 for (int j = 0; j < width; j++) {
921 png_byte *dst = tex.data;
922 int pitch = width * 4;
923 for (int i = height - 1; i >= 0; i--, dst += pitch)
924 memcpy(dst, row_pointers[i], pitch);
934 cerr << "There was a problem loading " << file_name << endl;
936 png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
943 bool save_image(const char *file_name)
945 const char *ptr = strrchr((char *)file_name, '.');
947 if (strcasecmp(ptr + 1, "png") == 0)
948 return save_png(file_name);
951 STUBBED("Unsupported image type");
956 static bool save_png(const char *file_name)
959 png_structp png_ptr = NULL;
960 png_infop info_ptr = NULL;
963 fp = fopen(file_name, "wb");
967 png_bytep *row_pointers = new png_bytep[kContextHeight];
968 png_bytep screenshot = new png_byte[kContextWidth * kContextHeight * 3];
969 if ((!screenshot) || (!row_pointers))
973 glReadPixels(0, 0, kContextWidth, kContextHeight,
974 GL_RGB, GL_UNSIGNED_BYTE, screenshot);
975 if (glGetError() != GL_NO_ERROR)
978 for (int i = 0; i < kContextHeight; i++)
979 row_pointers[i] = screenshot + ((kContextWidth * ((kContextHeight - 1) - i)) * 3);
981 png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
985 info_ptr = png_create_info_struct(png_ptr);
986 if (info_ptr == NULL)
989 if (setjmp(png_jmpbuf(png_ptr)))
992 png_init_io(png_ptr, fp);
994 if (setjmp(png_jmpbuf(png_ptr)))
997 png_set_IHDR(png_ptr, info_ptr, kContextWidth, kContextHeight,
998 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
999 PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
1001 png_write_info(png_ptr, info_ptr);
1003 if (setjmp(png_jmpbuf(png_ptr)))
1006 png_write_image(png_ptr, row_pointers);
1008 if (setjmp(png_jmpbuf(png_ptr)))
1011 png_write_end(png_ptr, NULL);
1015 png_destroy_write_struct(&png_ptr, &info_ptr);
1016 delete[] screenshot;
1017 delete[] row_pointers;
1021 unlink(ConvertFileName(file_name));