Added support for saving screenshot of game using a user-defined shortcut

makefile

@@ -19,6 +19,10 @@ RELEASE_BASE=FinUI-$(RELEASE_TIME)b
 RELEASE_DOT!=find ./releases/. -regex ".*/$(RELEASE_BASE)-[0-9]+-base\.zip" -printf '.' | wc -m
 RELEASE_NAME=$(RELEASE_BASE)-$(RELEASE_DOT)
 
+ifeq (,$(BUILD_HASH))
+BUILD_HASH="devRelease"
+endif
+
 # TODO: this needs to consider the different platforms, eg. rootfs.ext2 should only be copied in rg35xx-toolchain
 
 all: lib sys all-cores tools bundle readmes zip report
@@ -102,14 +106,14 @@ zip:
 	cd ./build/PAYLOAD && zip -r MinUI.zip .system
 	mv ./build/PAYLOAD/MinUI.zip ./build/BASE
 
-	cd ./build/BASE && zip -r ../../releases/$(RELEASE_NAME)-base.zip Bios Roms Saves dmenu.bin MinUI.zip README.txt INSTALL.txt SHORTCUTS.txt
+	cd ./build/BASE && zip -r ../../releases/$(RELEASE_NAME)-base.zip Bios Roms Saves Screenshots dmenu.bin MinUI.zip README.txt INSTALL.txt SHORTCUTS.txt
-	cd ./build/EXTRAS && zip -r ../../releases/$(RELEASE_NAME)-extras.zip Bios Emus Roms Saves Tools README.txt
+	cd ./build/EXTRAS && zip -r ../../releases/$(RELEASE_NAME)-extras.zip Bios Emus Roms Saves Screenshots Tools README.txt
 
 	rm -fr ./build/FULL
 	mkdir ./build/FULL
 	cp -fR ./build/BASE/* ./build/FULL/
 	cp -fR ./build/EXTRAS/* ./build/FULL/
-	cd ./build/FULL && zip -r ../../releases/$(RELEASE_NAME)-full.zip Bios Emus Roms Saves Tools dmenu.bin MinUI.zip INSTALL.txt SHORTCUTS.txt
+	cd ./build/FULL && zip -r ../../releases/$(RELEASE_NAME)-full.zip Bios Emus Roms Saves Screenshots Tools dmenu.bin MinUI.zip INSTALL.txt SHORTCUTS.txt
 
 	echo "$(RELEASE_NAME)" > ./build/latest.txt
 

skeleton/BASE/README.txt

@@ -68,6 +68,10 @@ Reduce/increase brightness:
 
   MENU + VOLUME UP or VOLUME DOWN
 
+Add/remove Favorites (from menu):
+
+  SELECT
+
 The remaining emulation shortcuts are all user defined.
 
 ----------------------------------------

skeleton/SYSTEM/rg35xx/paks/MinUI.pak/launch.sh

@@ -7,6 +7,7 @@ export SYSTEM_PATH="$SDCARD_PATH/.system/rg35xx"
 export CORES_PATH="$SYSTEM_PATH/cores"
 export USERDATA_PATH="$SDCARD_PATH/.userdata/rg35xx"
 export LOGS_PATH="$USERDATA_PATH/logs"
+export SCREENSHOTS_PATH="$SDCARD_PATH/Screenshots"
 
 #######################################
 

src/common/defines.h

@@ -60,6 +60,7 @@
 #define FAUX_FAVORITE_PATH SDCARD_PATH "/Favorites"
 #define COLLECTIONS_PATH SDCARD_PATH "/Collections"
 #define BATTERY_PATH SDCARD_PATH "/battery.txt"
+#define SCREENSHOTS_PATH SDCARD_PATH "/Screenshots"
 
 #define LAST_PATH "/tmp/last.txt" // transient
 #define CHANGE_DISC_PATH "/tmp/change_disc.txt"

src/minarch/minarch.c

@@ -435,6 +435,24 @@ static void SRAM_write(void) {
 
 ///////////////////////////////////////
 
+static void Downsample(void* __restrict src, void* __restrict dst, uint32_t w, uint32_t h, uint32_t pitch, uint32_t dst_pitch) {
+	uint32_t ox = 0;
+	uint32_t oy = 0;
+	uint32_t ix = (w<<16) / FIXED_WIDTH;
+	uint32_t iy = (h<<16) / FIXED_HEIGHT;
+	
+	for (int y=0; y<FIXED_HEIGHT; y++) {
+		uint16_t* restrict src_row = (void*)src + (oy>>16) * pitch;
+		uint16_t* restrict dst_row = (void*)dst + y * dst_pitch;
+		for (int x=0; x<FIXED_WIDTH; x++) {
+			*dst_row = *(src_row + (ox>>16));
+			dst_row += 1;
+			ox += ix;
+		}
+		ox = 0;
+		oy += iy;
+	}
+}
 static int state_slot = 0;
 static void State_getPath(char* filename) {
 	sprintf(filename, "%s/%s.st%i", core.config_dir, game.name, state_slot);
@@ -531,6 +549,46 @@ static void State_resume(void) {
 	State_read();
 	state_slot = last_state_slot;
 }
+static void Take_screenshot(void) {	
+	char bmp_path[256];
+	char screenshot_dir[256];
+
+	sprintf(screenshot_dir, SCREENSHOTS_PATH);
+	mkdir(screenshot_dir, 0755);	
+
+	SDL_Surface* backing = GFX_getBufferCopy();
+	SDL_Surface* snapshot = SDL_CreateRGBSurface(SDL_SWSURFACE, FIXED_WIDTH,FIXED_HEIGHT,FIXED_DEPTH,0,0,0,0);	 
+	
+	if (backing->w==FIXED_WIDTH && backing->h==FIXED_HEIGHT) {
+		SDL_BlitSurface(backing, NULL, snapshot, NULL);
+	}
+	else {
+		Downsample(backing->pixels,snapshot->pixels,backing->w,backing->h,backing->pitch,snapshot->pitch);
+	}
+
+	// Get the current date and time for the screenshot filename
+	time_t currentTime = time(NULL);
+	struct tm* timeinfo = localtime(&currentTime);
+ 	int day = timeinfo->tm_mday;
+	int month = timeinfo->tm_mon + 1;
+	int year = timeinfo->tm_year + 1900;
+
+	int hours = timeinfo->tm_hour;
+	int minutes = timeinfo->tm_min;
+	int seconds = timeinfo->tm_sec; 
+
+	// Convert hours and minutes to strings
+	char timeStr[16];
+	snprintf(timeStr, sizeof(timeStr), "%04d%02d%02d_%02d%02d%02d", year, month, day, hours, minutes, seconds);
+	sprintf(bmp_path, "%s/%s.bmp", screenshot_dir, timeStr);
+ 
+	SDL_RWops* out = SDL_RWFromFile(bmp_path, "wb");
+
+	SDL_SaveBMP_RW(snapshot, out, 1);
+
+	SDL_FreeSurface(snapshot);
+	SDL_FreeSurface(backing);
+}
 
 ///////////////////////////////
 
@@ -608,6 +666,7 @@ enum {
 	SHORTCUT_TOGGLE_SCANLINES,
 	SHORTCUT_TOGGLE_FF,
 	SHORTCUT_HOLD_FF,
+	SHORTCUT_TAKE_SCREENSHOT,
 	SHORTCUT_COUNT,
 };
 
@@ -847,6 +906,7 @@ static struct Config {
 		[SHORTCUT_TOGGLE_SCANLINES]		= {"Toggle Scanlines",	-1, BTN_ID_NONE, 0},
 		[SHORTCUT_TOGGLE_FF]			= {"Toggle FF",			-1, BTN_ID_NONE, 0},
 		[SHORTCUT_HOLD_FF]				= {"Hold FF",			-1, BTN_ID_NONE, 0},
+		[SHORTCUT_TAKE_SCREENSHOT]	    = {"Take Screenshot",	-1, BTN_ID_NONE, 0},
 		{NULL}
 	},
 };
@@ -1431,6 +1491,9 @@ static void input_poll_callback(void) {
 							Config_syncFrontend(FE_OPT_SCANLINES, !show_scanlines);
 						}
 						break;
+					case SHORTCUT_TAKE_SCREENSHOT: 
+						Take_screenshot();
+						break;
 					default: break;
 				}
 				
@@ -3815,25 +3878,6 @@ static int Menu_options(MenuList* list) {
 	return 0;
 }
 
-static void downsample(void* __restrict src, void* __restrict dst, uint32_t w, uint32_t h, uint32_t pitch, uint32_t dst_pitch) {
-	uint32_t ox = 0;
-	uint32_t oy = 0;
-	uint32_t ix = (w<<16) / FIXED_WIDTH;
-	uint32_t iy = (h<<16) / FIXED_HEIGHT;
-	
-	for (int y=0; y<FIXED_HEIGHT; y++) {
-		uint16_t* restrict src_row = (void*)src + (oy>>16) * pitch;
-		uint16_t* restrict dst_row = (void*)dst + y * dst_pitch;
-		for (int x=0; x<FIXED_WIDTH; x++) {
-			*dst_row = *(src_row + (ox>>16));
-			dst_row += 1;
-			ox += ix;
-		}
-		ox = 0;
-		oy += iy;
-	}
-}
-
 static void Menu_loop(void) {
 	// current screen is on the previous buffer
 	
@@ -3845,7 +3889,7 @@ static void Menu_loop(void) {
 		SDL_BlitSurface(backing, NULL, snapshot, NULL);
 	}
 	else {
-		downsample(backing->pixels,snapshot->pixels,backing->w,backing->h,backing->pitch,snapshot->pitch);
+		Downsample(backing->pixels,snapshot->pixels,backing->w,backing->h,backing->pitch,snapshot->pitch);
 	}
 	
 	int target_w = FIXED_WIDTH; // 640 * 480 / 720 rounded up to nearest 8