Add image helper functions

firmware/lcd/Makefile

@@ -9,6 +9,7 @@ OBJS += render.o
 OBJS += decoder.o
 OBJS += backlight.o
 OBJS += print.o
+OBJS += image.o
 
 FONTS = $(basename $(wildcard fonts/*.c))
 

firmware/lcd/image.c

@@ -0,0 +1,46 @@
+#include <sysinit.h>
+
+#include "basic/basic.h"
+#include "lcd/lcd.h"
+#include "lcd/display.h"
+#include "filesystem/ff.h"
+
+int lcdLoadImage(char *file) {
+    return readFile(file,(char *)lcdBuffer,RESX*RESY_B);
+}
+
+int lcdSaveImage(char *file) {
+	return writeFile(file,(char *)lcdBuffer,RESX*RESY_B);
+}
+
+uint8_t lcdShowAnim(char *fname, uint32_t framems) {
+    FIL file;            /* File object */
+	int res;
+    UINT readbytes;
+	uint8_t state=0;
+
+	res=f_open(&file, fname, FA_OPEN_EXISTING|FA_READ);
+	if(res)
+		return 1;
+
+	getInputWaitRelease();
+	while(!getInputRaw()){
+        lcdFill(0x55);
+		res = f_read(&file, (char *)lcdBuffer, RESX*RESY_B, &readbytes);
+        if(res)
+            return -1;
+		if(readbytes<RESX*RESY_B){
+			f_lseek(&file,0);
+            continue;
+        };
+		lcdDisplay();
+		state=delayms_queue_plus(framems,0);
+	}
+
+	if(state)
+		work_queue();
+
+    return 0;
+};
+
+

firmware/lcd/image.h

@@ -0,0 +1,8 @@
+#ifndef __DISPLAYIMG_H_
+#define __DISPLAYIMG_H_
+
+void lcdLoadImage(char *file);
+void lcdSaveImage(char *file);
+uint8_t lcdShowAnim(char *file, uint32_t framems);
+
+#endif