diff options
Diffstat (limited to 'src/misc.c')
| -rw-r--r-- | src/misc.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/src/misc.c b/src/misc.c new file mode 100644 index 0000000..7c551e2 --- /dev/null +++ b/src/misc.c @@ -0,0 +1,283 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "misc.h" +#include "defines.h" +#include "interface.h" +#include "graphics.h" + +//Signum function +#ifdef WIN32 +_inline int isign(float i) +#else +inline int isign(float i) +#endif +{ + if (i<0) + return -1; + if (i>0) + return 1; + return 0; +} + +#ifdef WIN32 +_inline unsigned clamp_flt(float f, float min, float max) +#else +inline unsigned clamp_flt(float f, float min, float max) +#endif +{ + if(f<min) + return 0; + if(f>max) + return 255; + return (int)(255.0f*(f-min)/(max-min)); +} + +#ifdef WIN32 +_inline float restrict_flt(float f, float min, float max) +#else +inline float restrict_flt(float f, float min, float max) +#endif +{ + if(f<min) + return min; + if(f>max) + return max; + return f; +} + +char *mystrdup(char *s) +{ + char *x; + if(s) + { + x = (char*)malloc(strlen(s)+1); + strcpy(x, s); + return x; + } + return s; +} + +void strlist_add(struct strlist **list, char *str) +{ + struct strlist *item = malloc(sizeof(struct strlist)); + item->str = mystrdup(str); + item->next = *list; + *list = item; +} + +int strlist_find(struct strlist **list, char *str) +{ + struct strlist *item; + for(item=*list; item; item=item->next) + if(!strcmp(item->str, str)) + return 1; + return 0; +} + +void strlist_free(struct strlist **list) +{ + struct strlist *item; + while(*list) + { + item = *list; + *list = (*list)->next; + free(item); + } +} + +void save_presets(int do_update) +{ + FILE *f=fopen("powder.def", "wb"); + unsigned char sig[4] = {0x50, 0x44, 0x65, 0x66}; + unsigned char tmp = sdl_scale; + if(!f) + return; + fwrite(sig, 1, 4, f); + save_string(f, svf_user); + save_string(f, svf_pass); + fwrite(&tmp, 1, 1, f); + tmp = cmode; + fwrite(&tmp, 1, 1, f); + tmp = svf_admin; + fwrite(&tmp, 1, 1, f); + tmp = svf_mod; + fwrite(&tmp, 1, 1, f); + save_string(f, http_proxy_string); + tmp = SAVE_VERSION; + fwrite(&tmp, 1, 1, f); + tmp = MINOR_VERSION; + fwrite(&tmp, 1, 1, f); + tmp = do_update; + fwrite(&tmp, 1, 1, f); + fclose(f); +} + +void load_presets(void) +{ + FILE *f=fopen("powder.def", "rb"); + unsigned char sig[4], tmp; + if(!f) + return; + fread(sig, 1, 4, f); + if(sig[0]!=0x50 || sig[1]!=0x44 || sig[2]!=0x65 || sig[3]!=0x66) + { + if(sig[0]==0x4D && sig[1]==0x6F && sig[2]==0x46 && sig[3]==0x6F) + { + if(fseek(f, -3, SEEK_END)) + { + remove("powder.def"); + return; + } + if(fread(sig, 1, 3, f) != 3) + { + remove("powder.def"); + goto fail; + } + last_major = sig[0]; + last_minor = sig[1]; + update_flag = sig[2]; + } + fclose(f); + remove("powder.def"); + return; + } + if(load_string(f, svf_user, 63)) + goto fail; + if(load_string(f, svf_pass, 63)) + goto fail; + svf_login = !!svf_user[0]; + if(fread(&tmp, 1, 1, f) != 1) + goto fail; + sdl_scale = (tmp == 2) ? 2 : 1; + if(fread(&tmp, 1, 1, f) != 1) + goto fail; + cmode = tmp%7; + if(fread(&tmp, 1, 1, f) != 1) + goto fail; + svf_admin = tmp; + if(fread(&tmp, 1, 1, f) != 1) + goto fail; + svf_mod = tmp; + if(load_string(f, http_proxy_string, 255)) + goto fail; + if(fread(sig, 1, 3, f) != 3) + goto fail; + last_major = sig[0]; + last_minor = sig[1]; + update_flag = sig[2]; +fail: + fclose(f); +} + +void save_string(FILE *f, char *str) +{ + int li = strlen(str); + unsigned char lb[2]; + lb[0] = li; + lb[1] = li >> 8; + fwrite(lb, 2, 1, f); + fwrite(str, li, 1, f); +} + +int load_string(FILE *f, char *str, int max) +{ + int li; + unsigned char lb[2]; + fread(lb, 2, 1, f); + li = lb[0] | (lb[1] << 8); + if(li > max) + { + str[0] = 0; + return 1; + } + fread(str, li, 1, f); + str[li] = 0; + return 0; +} + +void strcaturl(char *dst, char *src) +{ + char *d; + unsigned char *s; + + for(d=dst; *d; d++) ; + + for(s=(unsigned char *)src; *s; s++) + { + if((*s>='0' && *s<='9') || + (*s>='a' && *s<='z') || + (*s>='A' && *s<='Z')) + *(d++) = *s; + else + { + *(d++) = '%'; + *(d++) = hex[*s>>4]; + *(d++) = hex[*s&15]; + } + } + *d = 0; +} + +void strappend(char *dst, char *src) +{ + char *d; + unsigned char *s; + + for(d=dst; *d; d++) ; + + for(s=(unsigned char *)src; *s; s++) + { + *(d++) = *s; + } + *d = 0; +} + +void *file_load(char *fn, int *size) +{ + FILE *f = fopen(fn, "rb"); + void *s; + + if(!f) + return NULL; + fseek(f, 0, SEEK_END); + *size = ftell(f); + fseek(f, 0, SEEK_SET); + s = malloc(*size); + if(!s) + { + fclose(f); + return NULL; + } + fread(s, *size, 1, f); + fclose(f); + return s; +} + +int cpu_check(void) +{ +#ifdef MACOSX + return 0; +#else +#ifdef X86 + unsigned af,bf,cf,df; + x86_cpuid(0, af, bf, cf, df); + if(bf==0x68747541 && cf==0x444D4163 && df==0x69746E65) + amd = 1; + x86_cpuid(1, af, bf, cf, df); +#ifdef X86_SSE + if(!(df&(1<<25))) + return 1; +#endif +#ifdef X86_SSE2 + if(!(df&(1<<26))) + return 1; +#endif +#ifdef X86_SSE3 + if(!(cf&1)) + return 1; +#endif +#endif +#endif + return 0; +}
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