Add screen brightness module

Though it's only for Unix likes... I really wanna support BSDs next time.

5 files changed, 53 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index 1610951..8f02e10 100644
--- a/Makefile
+++ b/Makefile
@@ -27,6 +27,6 @@ clean:
 	$(RM) ./*.o
 
 install:
-	install -s -m0755 bstatus $(DESTDIR)
+	install -s -m 0755 bstatus $(DESTDIR)
 
 .PHONY: make clean install
diff --git a/README.md b/README.md
index a41babf..154a186 100644
--- a/README.md
+++ b/README.md
@@ -24,10 +24,13 @@ The modules aren't directly portable, I'd say to modify and port it than to comp
 - [x] datetime
 - [x] battery
 - [x] cpu
-- [ ] memory
+- [x] memory
+- [x] brightness (screen)
 - [ ] volume
 - [ ] network
 
+All work perfectly fine if you are using Linux. But I would love to write a bstatus seperately for the BSDs as well, instead of having them all in there to bloat the source code.
+
 # Contribute
 Send a patch [to my email](mailto:sabr@ariamath.xyz) or [at xmpp](xmpp:sabr@ariamath.xyz).
 
diff --git a/bstatus.c b/bstatus.c
index 30eb098..1f3e735 100644
--- a/bstatus.c
+++ b/bstatus.c
@@ -16,6 +16,7 @@ int main(void)
 		datetime();
 		battery();
 		cpu();
+		scrbr();
 		mem();
 		write(1,"],",2);
 		sleep(1);
diff --git a/modules.h b/modules.h
index 2db07ce..c7c66bf 100644
--- a/modules.h
+++ b/modules.h
@@ -18,6 +18,11 @@ void cpu(void);
 #define MEM_H
 void mem(void);
 #endif
+// screen brightness
+#ifndef SCRBR_H
+#define SCRBR_H
+void scrbr(void);
+#endif
 // cmus
 #ifndef CMUS_H
 #define CMUS_H
diff --git a/scrbr.c b/scrbr.c
new file mode 100644
index 0000000..398a414
--- /dev/null
+++ b/scrbr.c
@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "block.h"
+#define ICON_BR "󰳲 "
+#define FG "#222222"
+#define BG "#dfb24999"
+#define BDIR "/sys/class/backlight/amdgpu_bl1"
+#define BMAXF max_brightness_f
+#define BCURF current_brightness_f
+FILE *BCURF, *BMAXF;
+void scrbr(void)
+{
+	char *buf;
+	unsigned short current_brightness;
+	unsigned short max_brightness;
+	unsigned short size;
+
+	if (!BCURF) BCURF = fopen(BDIR"/brightness","r");
+	if (!BMAXF) BMAXF = fopen(BDIR"/max_brightness","r");
+
+	fseek(BCURF, 0, SEEK_END);
+	fseek(BMAXF, 0, SEEK_END);
+
+	size = ftell(BCURF);
+	buf = malloc(size);
+	rewind(BCURF);
+	fgets(buf, size, BCURF);
+	current_brightness = atoi(buf);
+	free(buf);
+
+	size = ftell(BMAXF);
+	buf = malloc(size);
+	rewind(BMAXF);
+	fgets(buf, size, BMAXF);
+	max_brightness = atoi(buf);
+	free(buf);
+
+	char brightness[10];
+	snprintf(brightness,10,ICON_BR"%3d%%",
+			current_brightness*100/max_brightness);
+	block(brightness,FG,BG,BG);
+}