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#include "gpu.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
const char *run_gpu_command(const char *command) {
char buf[128];
char *out = NULL;
size_t outsize = 0;
FILE *p = popen(command, "r");
if (!p) {
fprintf(stderr, "GPUコマンドを実効に失敗: %s", command);
return NULL;
}
while (fgets(buf, sizeof(buf), p) != NULL) {
buf[strcspn(buf, "\n")] = '\0';
size_t len = strlen(buf);
char *nout = realloc(out, outsize + len + 1);
if (nout == NULL) {
perror("メモリの役割に失敗");
free(out);
pclose(p);
return NULL;
}
out = nout;
memccpy(out + outsize, buf, sizeof(buf), len);
outsize += len;
out[outsize] = '\0';
}
pclose(p);
return out;
}
const char *display_gpu() {
#if defined(__OpenBSD__)
return run_gpu_command("dmesg | grep -i graphics | sed 's/^.* \"//' | "
"sed 's/\".*$//'");
#elif defined(__FreeBSD__) || defined(__DragonFly__)
return run_gpu_command("pciconf -lv | grep -B 4 -F \"VGA\" | "
"grep -F \"device\" | sed 's/^.* device//' | "
"sed \"s/^.* '//\" | sed \"s/'//\" | tail -1 | "
"sed 's/ Core Processor Integrated Graphics Controller//'");
#else
if (
access("/bin/glxinfo", F_OK) == -1 &&
access("/usr/bin/glxinfo", F_OK) == -1 &&
access("/usr/local/bin/glxinfo", F_OK) == -1 &&
access("/usr/X11R6/bin/glxinfo", F_OK) == -1 &&
access("/usr/X11R7/bin/glxinfo", F_OK) == -1 &&
access("/usr/pkg/bin/glxinfo", F_OK) == -1
) return NULL;
return run_gpu_command("glxinfo -B | grep -F 'OpenGL renderer string' | "
"sed 's/OpenGL renderer string: //' | sed 's/Mesa //' | "
"sed 's/DRI //' | sed 's/(R)//' | sed 's/(.*$//'");
#endif
}
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