mGUI: Show battery percentage

CHANGES

@@ -47,6 +47,7 @@ Misc:
  - GBA: Allow pausing event loop while CPU is blocked
  - Debugger: Keep track of global cycle count
  - FFmpeg: Add looping option for GIF/APNG
+ - mGUI: Show battery percentage
  - Qt: Renderer can be changed while a game is running
  - Qt: Add hex index to palette view
  - Qt: Add transformation matrix info to sprite view

include/mgba-util/gui.h

@@ -42,13 +42,15 @@ enum GUICursorState {
 
 enum {
 	BATTERY_EMPTY = 0,
-	BATTERY_LOW = 1,
-	BATTERY_HALF = 2,
-	BATTERY_HIGH = 3,
-	BATTERY_FULL = 4,
+	BATTERY_LOW = 25,
+	BATTERY_HALF = 50,
+	BATTERY_HIGH = 75,
+	BATTERY_FULL = 100,
+	BATTERY_VALUE = 0x7F,
+	BATTERY_PERCENTAGE_VALID = 0x80,
 
-	BATTERY_CHARGING = 8,
-	BATTERY_NOT_PRESENT = 16
+	BATTERY_CHARGING = 0x100,
+	BATTERY_NOT_PRESENT = 0x200,
 };
 
 struct GUIBackground {

src/platform/3ds/cia.rsf.in

@@ -154,14 +154,13 @@ AccessControlInfo:
    - cam:u
    - cecd:u
    - cfg:u
-   - dlp:FKCL
-   - dlp:SRVR
    - dsp::DSP
    - frd:u
    - fs:USER
    - gsp::Gpu
    - hid:USER
    - http:C
+   - mcu::HWC
    - mic:u
    - ndm:u
    - news:u

src/platform/3ds/main.c

@@ -187,6 +187,7 @@ static void _cleanup(void) {
 	camExit();
 	ndspExit();
 	ptmuExit();
+	mcuHwcExit();
 }
 
 static void _map3DSKey(struct mInputMap* map, int ctrKey, enum GBAKey key) {
@@ -237,15 +238,20 @@ static void _drawEnd(void) {
 static int _batteryState(void) {
 	u8 charge;
 	u8 adapter;
-	PTMU_GetBatteryLevel(&charge);
 	PTMU_GetBatteryChargeState(&adapter);
+
 	int state = 0;
+	if (R_SUCCEEDED(MCUHWC_GetBatteryLevel(&charge))) {
+		charge |= BATTERY_PERCENTAGE_VALID;
+	} else {
+		PTMU_GetBatteryLevel(&charge);
+		if (charge > 0) {
+			--charge;
+		}
+	}
 	if (adapter) {
 		state |= BATTERY_CHARGING;
 	}
-	if (charge > 0) {
-		--charge;
-	}
 	return state | charge;
 }
 
@@ -814,6 +820,7 @@ int main() {
 	camera.cam = SELECT_IN1;
 
 	ptmuInit();
+	mcuHwcInit();
 	camInit();
 
 	hasSound = NO_SOUND;

src/platform/psp2/main.c

@@ -72,13 +72,12 @@ static enum GUICursorState _pollCursor(unsigned* x, unsigned* y) {
 }
 
 static int _batteryState(void) {
-	int charge = scePowerGetBatteryLifePercent();
+	int charge = scePowerGetBatteryLifePercent() | BATTERY_PERCENTAGE_VALID;
 	int adapter = scePowerIsPowerOnline();
 	int state = 0;
 	if (adapter) {
 		state |= BATTERY_CHARGING;
 	}
-	charge /= 25;
 	return state | charge;
 }
 

src/platform/switch/main.c

@@ -607,7 +607,7 @@ static int _batteryState(void) {
 	u32 charge;
 	int state = 0;
 	if (R_SUCCEEDED(psmGetBatteryChargePercentage(&charge))) {
-		state = (charge + 12) / 25;
+		state = charge | BATTERY_PERCENTAGE_VALID;
 	} else {
 		return BATTERY_NOT_PRESENT;
 	}

src/util/gui/font-metrics.c

@@ -137,11 +137,11 @@ const struct GUIFontGlyphMetric defaultFontMetrics[128] = {
 };
 
 const struct GUIIconMetric defaultIconMetrics[] = {
-	[GUI_ICON_BATTERY_FULL] = { 0, 0, 32, 16 },
-	[GUI_ICON_BATTERY_HIGH] = { 32, 0, 32, 16 },
-	[GUI_ICON_BATTERY_HALF] = { 64, 0, 32, 16 },
-	[GUI_ICON_BATTERY_LOW] = { 96, 0, 32, 16 },
-	[GUI_ICON_BATTERY_EMPTY] = { 128, 0, 32, 16 },
+	[GUI_ICON_BATTERY_FULL] = { 0, 2, 32, 12 },
+	[GUI_ICON_BATTERY_HIGH] = { 32, 2, 32, 12 },
+	[GUI_ICON_BATTERY_HALF] = { 64, 2, 32, 12 },
+	[GUI_ICON_BATTERY_LOW] = { 96, 2, 32, 12 },
+	[GUI_ICON_BATTERY_EMPTY] = { 128, 2, 32, 12 },
 	[GUI_ICON_SCROLLBAR_BUTTON] = { 6, 16, 4, 5 },
 	[GUI_ICON_SCROLLBAR_TRACK] = { 23, 16, 2, 16 },
 	[GUI_ICON_SCROLLBAR_THUMB] = { 38, 16, 4, 16 },

src/util/gui/font.c

@@ -43,7 +43,7 @@ void GUIFontPrint(const struct GUIFont* font, int x, int y, enum GUIAlignment al
 		if (c == '\1') {
 			c = utf8Char(&text, &len);
 			if (c < GUI_ICON_MAX) {
-				GUIFontDrawIcon(font, x, y, GUI_ALIGN_BOTTOM, GUI_ORIENT_0, color, c);
+				GUIFontDrawIcon(font, x, y, (align & GUI_ALIGN_HCENTER) | GUI_ALIGN_BOTTOM, GUI_ORIENT_0, color, c);
 				unsigned w;
 				GUIFontIconMetrics(font, c, &w, 0);
 				x += w;

src/util/gui/menu.c

@@ -264,20 +264,20 @@ void GUIDrawBattery(struct GUIParams* params) {
 		return;
 	}
 	uint32_t color = 0xFF000000;
-	if (state == (BATTERY_CHARGING | BATTERY_FULL)) {
+	if ((state & (BATTERY_CHARGING | BATTERY_FULL)) == (BATTERY_CHARGING | BATTERY_FULL)) {
 		color |= 0xFFC060;
 	} else if (state & BATTERY_CHARGING) {
 		color |= 0x60FF60;
-	} else if (state >= BATTERY_HALF) {
+	} else if ((state & BATTERY_VALUE) >= BATTERY_HALF) {
 		color |= 0xFFFFFF;
-	} else if (state == BATTERY_LOW) {
+	} else if ((state & BATTERY_VALUE) >= BATTERY_LOW) {
 		color |= 0x30FFFF;
 	} else {
 		color |= 0x3030FF;
 	}
 
 	enum GUIIcon batteryIcon;
-	switch (state & ~BATTERY_CHARGING) {
+	switch ((state & BATTERY_VALUE) - (state & BATTERY_VALUE) % 25) {
 	case BATTERY_EMPTY:
 		batteryIcon = GUI_ICON_BATTERY_EMPTY;
 		break;
@@ -298,7 +298,12 @@ void GUIDrawBattery(struct GUIParams* params) {
 		break;
 	}
 
-	GUIFontDrawIcon(params->font, params->width, 0, GUI_ALIGN_RIGHT, GUI_ORIENT_0, color, batteryIcon);
+	GUIFontDrawIcon(params->font, params->width, GUIFontHeight(params->font) + 2, GUI_ALIGN_RIGHT | GUI_ALIGN_BOTTOM, GUI_ORIENT_0, color, batteryIcon);
+	if (state & BATTERY_PERCENTAGE_VALID) {
+		unsigned width;
+		GUIFontIconMetrics(params->font, batteryIcon, &width, NULL);
+		GUIFontPrintf(params->font, params->width - width, GUIFontHeight(params->font), GUI_ALIGN_RIGHT, color, "%u%%", state & BATTERY_VALUE);
+	}
 }
 
 void GUIDrawClock(struct GUIParams* params) {