66 lines
1.7 KiB
Text
66 lines
1.7 KiB
Text
/* gcc Video_display_modes.c -o Video_display_modes -lwren -lm */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "wren.h"
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void C_xrandr(WrenVM* vm) {
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const char *arg = wrenGetSlotString(vm, 1);
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char command[strlen(arg) + 8];
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strcpy(command, "xrandr ");
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strcat(command, arg);
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system(command);
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}
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void C_usleep(WrenVM* vm) {
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useconds_t usec = (useconds_t)wrenGetSlotDouble(vm, 1);
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usleep(usec);
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}
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WrenForeignMethodFn bindForeignMethod(
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WrenVM* vm,
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const char* module,
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const char* className,
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bool isStatic,
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const char* signature) {
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if (strcmp(module, "main") == 0) {
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if (strcmp(className, "C") == 0) {
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if (isStatic && strcmp(signature, "xrandr(_)") == 0) return C_xrandr;
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if (isStatic && strcmp(signature, "usleep(_)") == 0) return C_usleep;
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}
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}
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return NULL;
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}
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static void writeFn(WrenVM* vm, const char* text) {
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printf("%s", text);
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}
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char *readFile(const char *fileName) {
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FILE *f = fopen(fileName, "r");
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fseek(f, 0, SEEK_END);
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long fsize = ftell(f);
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rewind(f);
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char *script = malloc(fsize + 1);
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fread(script, 1, fsize, f);
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fclose(f);
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script[fsize] = 0;
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return script;
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}
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int main(int argc, char **argv) {
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WrenConfiguration config;
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wrenInitConfiguration(&config);
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config.writeFn = &writeFn;
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config.bindForeignMethodFn = &bindForeignMethod;
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WrenVM* vm = wrenNewVM(&config);
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const char* module = "main";
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const char* fileName = "Video_display_modes.wren";
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char *script = readFile(fileName);
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wrenInterpret(vm, module, script);
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wrenFreeVM(vm);
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free(script);
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return 0;
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}
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