Cleanup options variables, spelling errors, declarations

Options for requested width, height, and pixel scaling and window title can
be shared between display subsystems.

Include correct header for local sdl function definitions rather than
manually duplicating a reference for init_SDL().

Correct a typo in comments on build_lisp_map().

Author: nbriggs

src/main.c

@@ -243,7 +243,7 @@ int flushing = FALSE; /* see dbprint.h if set, all debug/trace printing will cal
 extern DspInterface currentdsp;
 #endif /* DOS || XWINDOW */
 #ifdef SDL
-extern int init_SDL(char*, int, int, int);
+#include "sdldefs.h"	/* for init_SDL */
 #endif
 extern const time_t MDate;
 extern int nokbdflag;
@@ -324,6 +324,15 @@ extern char foregroundColorName[64];
 char backgroundColorName[64] = {0};
 extern char backgroundColorName[64];
 #endif
+char windowTitle[255] = "Medley";
+extern char windowTitle[255];
+int lispDisplayRequestedWidth = 1024;
+extern int lispDisplayRequestedWidth;
+int lispDisplayRequestedHeight = 768;
+extern int lispDisplayRequestedHeight;
+int pixelScale = 1;
+extern int pixelScale;
+
 /************************************************************************/
 /*									*/
 /*		     M A I N   E N T R Y   P O I N T			*/
@@ -338,9 +347,6 @@ int main(int argc, char *argv[])
   extern int TIMER_INTERVAL;
   extern fd_set LispReadFds;
   long tmpint;
-  int width = 1024, height = 768;
-  int pixelscale = 1;
-  char *windowtitle = "Medley";
 
 #ifdef MAIKO_ENABLE_FOREIGN_FUNCTION_INTERFACE
   if (dld_find_executable(argv[0]) == 0) {
@@ -365,7 +371,6 @@ int main(int argc, char *argv[])
   // arg processing changes argc/argv
   if (argc > 1 && argv[1][0] != '-') {
     strncpy(sysout_name_first_arg, argv[1], MAXPATHLEN);
-    i++;
   }
 
 
@@ -468,7 +473,7 @@ int main(int argc, char *argv[])
 #ifdef SDL
     else if ((strcmp(argv[i], "-sc") == 0) || (strcmp(argv[i], "-SC") == 0)) {
       if (argc > ++i) {
-        int read = sscanf(argv[i], "%dx%d", &width, &height);
+        int read = sscanf(argv[i], "%dx%d", &lispDisplayRequestedWidth, &lispDisplayRequestedHeight);
         if(read != 2) {
           (void)fprintf(stderr, "Could not parse -sc argument %s\n", argv[i]);
           exit(1);
@@ -479,7 +484,7 @@ int main(int argc, char *argv[])
       }
     } else if ((strcmp(argv[i], "-pixelscale") == 0) || (strcmp(argv[i], "-PIXELSCALE") == 0)) {
       if (argc > ++i) {
-        int read = sscanf(argv[i], "%d", &pixelscale);
+        int read = sscanf(argv[i], "%d", &pixelScale);
         if(read != 1) {
           (void)fprintf(stderr, "Could not parse -pixelscale argument %s\n", argv[i]);
           exit(1);
@@ -491,7 +496,7 @@ int main(int argc, char *argv[])
     } else if ((strcmp(argv[i], "-t") == 0) || (strcmp(argv[i], "-T") == 0)
                || (strcmp(argv[i], "-title") == 0) || (strcmp(argv[i], "-TITLE") == 0)) {
       if (argc > ++i) {
-        windowtitle = argv[i];
+        strncpy(windowTitle, argv[i], sizeof(windowTitle) - 1);
       } else {
         (void)fprintf(stderr, "Missing argument after -title\n");
         exit(1);
@@ -711,13 +716,12 @@ int main(int argc, char *argv[])
   make_dsp_instance(currentdsp, 0, 0, 0, 1); /* All defaults the first time */
 #endif                                       /* DOS || XWINDOW */
 #if defined(SDL)
-  init_SDL(windowtitle, width, height, pixelscale);
+  init_SDL(windowTitle, lispDisplayRequestedWidth, lispDisplayRequestedHeight, pixelScale);
 #endif /* SDL */
   /* Load sysout to VM space and returns real sysout_size(not 0) */
   sysout_size = sysout_loader(sysout_name, sysout_size);
 
-  build_lisp_map(); /* built up map */
-
+  build_lisp_map(); /* build up map */
   init_ifpage(sysout_size); /* init interface page */
   init_iopage();
   init_miscstats();

src/sdl.c

@@ -1565,9 +1565,7 @@ int init_SDL(char *windowtitle, int w, int h, int s) {
   sdl_displayheight = h;
   sdl_windowwidth = w * s;
   sdl_windowheight = h * s;
-  int width = sdl_displaywidth;
-  int height = sdl_displayheight;
-  printf("requested width: %d, height: %d\n", width, height);
+  printf("requested width: %d, height: %d\n", sdl_displaywidth, sdl_displayheight);
   if (SDL_Init(SDL_INIT_VIDEO) < 0) {
     printf("SDL could not be initialized. SDL_Error: %s\n", SDL_GetError());
     return 1;
@@ -1608,7 +1606,8 @@ int init_SDL(char *windowtitle, int w, int h, int s) {
 #endif
   printf("Creating texture...\n");
   sdl_texture = SDL_CreateTexture(sdl_renderer, sdl_pixelformat->format,
-                                  SDL_TEXTUREACCESS_STREAMING, width, height);
+                                  SDL_TEXTUREACCESS_STREAMING,
+                                  sdl_displaywidth, sdl_displayheight);
   sdl_foreground_color = sdl_MapColorName(sdl_pixelformat,
                                           foregroundColorName[0] ? foregroundColorName : "black");
   sdl_background_color = sdl_MapColorName(sdl_pixelformat,