Merge branch 'master' of git.ugfx.io:uGFX/uGFX

10 files changed, 1322 insertions, 107 deletions

diff --git a/boards/base/OSX/example/Makefile b/boards/base/OSX/example/Makefile
index cce88c13..5cc39d15 100644
--- a/boards/base/OSX/example/Makefile
+++ b/boards/base/OSX/example/Makefile
@@ -26,7 +26,7 @@
 
 ARCH     =
 SRCFLAGS = -ggdb -O0
-CFLAGS   = `sdl2-config --libs --cflags`
+CFLAGS   = $(sdl2-config --cflags)
 CXXFLAGS =
 ASFLAGS  =
 LDFLAGS  =
@@ -34,7 +34,7 @@ LDFLAGS  =
 SRC      =
 OBJS     =
 DEFS     =
-LIBS     =
+LIBS     = $(sdl2-config --libs)
 INCPATH  =
 LIBPATH  =
 
diff --git a/changelog.txt b/changelog.txt
index 4bc85283..cfcb932f 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -44,6 +44,11 @@ FIX:		Fixed to allow gwinSetText with static text on a TextEdit control
 FIX:		Fixed to ChibiOS realloc on a TextEdit control

 FEATURE:	Added support for CMSIS V2.0 operating systems (eg RTX5)

 REMOVED:	Removed long deprecated functions gfxSemCounter() and gfxSemCounterI()

+FIX:		gwinDetachToggle() is now a visible part of the API

+CHANGE:		Update OSX makefiles (allows for 64bit building)

+FIX:		Fixed resetting a timer on gwinImage objects when using animated GIFs

+FEATURE:	Added gwinTextEditSendKey() and gwinTextEditSendSpecialKey()

+FEATURE:	Implemented the JPG image decoder

 

 

 *** Release 2.7 ***

diff --git a/src/gdisp/gdisp_image_jpg.c b/src/gdisp/gdisp_image_jpg.c
index 9a10f215..9c149357 100644
--- a/src/gdisp/gdisp_image_jpg.c
+++ b/src/gdisp/gdisp_image_jpg.c
@@ -3,14 +3,1160 @@
  * the license was not distributed with this file, you can obtain one at:
  *
  *              http://ugfx.org/license.html
+ *
+ * Note: part of this file is based on TJpgDec - Tiny JPEG Decompressor R0.01b (C)ChaN, 2012
+ *			with modifications for uGFX. The copyright notice for that code is in this file
+ *			when that code begins.
  */
 
 #include "../../gfx.h"
 
 #if GFX_USE_GDISP && GDISP_NEED_IMAGE && GDISP_NEED_IMAGE_JPG
 
+#if GFX_COMPILER_WARNING_TYPE == GFX_COMPILER_WARNING_DIRECT
+	#warning "GDISP JPG DECODER: This decoder is completly untested. It also currently has the downside that it always caches the complete image into RAM"
+#elif GFX_COMPILER_WARNING_TYPE == GFX_COMPILER_WARNING_MACRO
+	COMPILER_WARNING("GDISP JPG DECODER: This decoder is completly untested. It also currently has the downside that it always caches the complete image into RAM")
+#endif
+
 #include "gdisp_image_support.h"
 
-#error "JPG support not implemented yet"
+#define	JD_SZBUF		512					/* Size of stream input buffer */
+#define	JD_USE_SCALE	0					/* Use descaling feature for output */
+#define JD_TBLCLIP		0					/* Use table for saturation (might be a bit faster but increases 1K bytes of code size) */
+
+#define JD_WORKSZ 		(JD_SZBUF+2580+8)	/* The extra 8 bytes just for safety */
+
+typedef struct {
+	coord_t left, right, top, bottom;
+} JRECT;
+/* Decompressor object structure */
+typedef struct JDEC {
+	unsigned dctr;				/* Number of bytes available in the input buffer */
+	uint8_t* dptr;				/* Current data read ptr */
+	uint8_t* inbuf;				/* Bit stream input buffer */
+	uint8_t dmsk;				/* Current bit in the current read byte */
+	uint8_t scale;				/* Output scaling ratio */
+	uint8_t msx, msy;			/* MCU size in unit of block (width, height) */
+	uint8_t qtid[3];			/* Quantization table ID of each component */
+	int16_t dcv[3];				/* Previous DC element of each component */
+	uint16_t nrst;				/* Restart inverval */
+	unsigned width, height;		/* Size of the input image (pixel) */
+	uint8_t* huffbits[2][2];	/* Huffman bit distribution tables [id][dcac] */
+	uint16_t* huffcode[2][2];	/* Huffman code word tables [id][dcac] */
+	uint8_t* huffdata[2][2];	/* Huffman decoded data tables [id][dcac] */
+	int32_t* qttbl[4];			/* Dequaitizer tables [id] */
+	void* workbuf;				/* Working buffer for IDCT and RGB output */
+	uint8_t* mcubuf;			/* Working buffer for the MCU */
+	void* pool;					/* Pointer to available memory pool */
+	unsigned sz_pool;			/* Size of momory pool (bytes available) */
+	gdispImage* img;			/* Pointer to I/O device identifiler for the session */
+	} JDEC;
+
+/* TJpgDec API functions */
+gdispImageError jd_prepare(JDEC*, void*, gdispImage*);
+gdispImageError jd_decomp(JDEC*, unsigned(*)(gdispImage*,void*,JRECT*), uint8_t);
+
+/*---------------------------------------------------------------------------*/
+typedef struct gdispImagePrivate_JPG {
+	pixel_t		*frame0cache;
+	} gdispImagePrivate_JPG;
+
+gdispImageError gdispImageOpen_JPG(gdispImage *img){
+    gdispImagePrivate_JPG *priv;
+	uint8_t		hdr[4];
+	unsigned	len;
+
+	/* Read the file identifier */
+	if (gfileRead(img->f, hdr, 2) != 2)
+		return GDISP_IMAGE_ERR_BADFORMAT;		// It can't be us
+
+	/* Test the JPEG header structure */
+    if (hdr[0] != 0xff || hdr[1] != 0xd8)
+		return GDISP_IMAGE_ERR_BADFORMAT;		// It can't be us
+
+	/* We know we are a JPG format image */
+	img->type = GDISP_IMAGE_TYPE_JPG;
+	img->flags = 0;
+
+    /* Process Start of frame segments */
+    while(1) {
+
+ 		// Get a JPEG marker
+		if (gfileRead(img->f, hdr, 4) != 4 || hdr[0] != 0xFF)
+			return GDISP_IMAGE_ERR_BADDATA;
+
+		switch (hdr[1]) {
+		case 0xC0:	// SOF0
+            gfileRead(img->f, hdr, 4);
+            img->height = gdispImageGetAlignedBE16(hdr, 0);
+            img->width = gdispImageGetAlignedBE16(hdr, 2);
+
+ 			/* Allocate our private area */
+			if (!(img->priv = gdispImageAlloc(img, sizeof(gdispImagePrivate_JPG))))
+				return GDISP_IMAGE_ERR_NOMEMORY;
+
+			/* Initialise the essential bits in the private area */
+			priv = (gdispImagePrivate_JPG *)img->priv;
+			priv->frame0cache = 0;
+
+			return GDISP_IMAGE_ERR_OK;
+
+		case 0xD9:	// EOI
+			return GDISP_IMAGE_ERR_UNSUPPORTED;	/* Unsuppoted JPEG standard (may be progressive JPEG) */
+
+		default:
+			// Other SOFn markers are unsupported
+			if (hdr[1] >= 0xC1 && hdr[1] <= 0xCF)
+				return GDISP_IMAGE_ERR_UNSUPPORTED;
+
+			// Skip segment data
+			len = gdispImageGetAlignedBE16(hdr, 2);
+			if (len <= 2) return GDISP_IMAGE_ERR_BADDATA;
+			gfileSetPos(img->f, gfileGetPos(img->f)+len-2);
+		}
+    }
+}
+
+void gdispImageClose_JPG(gdispImage *img){
+	gdispImagePrivate_JPG *priv = (gdispImagePrivate_JPG *)img->priv;
+    if(priv){
+        if (priv->frame0cache){
+            gdispImageFree(img, (void *)priv->frame0cache, img->width * img->height * sizeof(pixel_t));
+        }
+        gdispImageFree(img, (void*) priv, sizeof(gdispImagePrivate_JPG));
+    }
+}
+
+static unsigned gdispImage_JPG_WriteToCache(gdispImage *img, void *bitmap, JRECT *rect)
+{
+	gdispImagePrivate_JPG	*priv;
+    uint8_t					*in;
+	pixel_t					*out;
+    coord_t					x, y;
+
+	priv = (gdispImagePrivate_JPG *)img->priv;
+    in = (unsigned char *)bitmap;
+
+    for (y = rect->top; y <= rect->bottom; y++) {
+        out = priv->frame0cache + ((img->width * (unsigned)y) + rect->left);
+        for(x = rect->left; x <= rect->right; x++, in += 3)
+            *out++ = RGB2COLOR(in[0], in[1], in[2]);
+    }
+    return 1;
+}
+
+gdispImageError gdispImageCache_JPG(gdispImage *img) {
+	gdispImagePrivate_JPG	*priv;
+	JDEC					*jd;
+    gdispImageError 		r;
+
+	/* If we are already cached - just return OK */
+	priv = (gdispImagePrivate_JPG *)img->priv;
+	if (priv->frame0cache)
+		return GDISP_IMAGE_ERR_OK;
+
+    /* Otherwise start a new decode */
+	priv->frame0cache = (pixel_t *)gdispImageAlloc(img, img->width * img->height * sizeof(pixel_t));
+	if (!priv->frame0cache)
+		return GDISP_IMAGE_ERR_NOMEMORY;
+
+    if (!(jd = gdispImageAlloc(img, sizeof(JDEC)+JD_WORKSZ)))
+        return GDISP_IMAGE_ERR_NOMEMORY;
+
+    gfileSetPos(img->f, 0);
+
+    if(!(r = jd_prepare(jd, jd+1, img))
+			&& !(r = jd_decomp(jd, gdispImage_JPG_WriteToCache, 0)))
+		r = GDISP_IMAGE_ERR_OK;
+
+    gdispImageFree(img, jd, sizeof(JDEC)+JD_WORKSZ);
+
+	return r;
+}
+
+gdispImageError gdispGImageDraw_JPG(GDisplay *g, gdispImage *img, coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t sx, coord_t sy){
+    gdispImagePrivate_JPG *	priv;
+
+    priv = (gdispImagePrivate_JPG *)img->priv;
+
+    /* Check some reasonableness */
+    if (sx >= img->width || sy >= img->height) return GDISP_IMAGE_ERR_OK;
+    if (sx + cx > img->width) cx = img->width - sx;
+    if (sy + cy > img->height) cy = img->height - sy;
+
+    /* Cache the image if not already cached */
+    if (!priv->frame0cache) {
+        gdispImageError err = gdispImageCache_JPG(img);
+        if(err){
+            return err;
+        }
+    }
+    gdispGBlitArea(g, x, y, cx, cy, sx, sy, img->width, priv->frame0cache);
+
+    return GDISP_IMAGE_ERR_OK;
+}
+
+delaytime_t gdispImageNext_JPG(gdispImage *img) {
+	(void) img;
+
+	/* No more frames/pages */
+	return TIME_INFINITE;
+}
+
+/*----------------------------------------------------------------------------/
+/ TJpgDec - Tiny JPEG Decompressor R0.01b                     (C)ChaN, 2012
+/-----------------------------------------------------------------------------/
+/ The TJpgDec is a generic JPEG decompressor module for tiny embedded systems.
+/ This is a free software that opened for education, research and commercial
+/  developments under license policy of following terms.
+/
+/  Copyright (C) 2012, ChaN, all right reserved.
+/
+/ * The TJpgDec module is a free software and there is NO WARRANTY.
+/ * No restriction on use. You can use, modify and redistribute it for
+/   personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
+/ * Redistributions of source code must retain the above copyright notice.
+/
+/-----------------------------------------------------------------------------/
+/ Oct 04,'11 R0.01  First release.
+/ Feb 19,'12 R0.01a Fixed decompression fails when scan starts with an escape seq.
+/ Sep 03,'12 R0.01b Added JD_TBLCLIP option.
+/ Aug 26,'17 Modified and optimised for uGFX
+/----------------------------------------------------------------------------*/
+
+/*-----------------------------------------------*/
+/* Zigzag-order to raster-order conversion table */
+/*-----------------------------------------------*/
+
+#define ZIG(n)	Zig[n]
+
+static
+const uint8_t Zig[64] = {	/* Zigzag-order to raster-order conversion table */
+	 0,  1,  8, 16,  9,  2,  3, 10, 17, 24, 32, 25, 18, 11,  4,  5,
+	12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13,  6,  7, 14, 21, 28,
+	35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51,
+	58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63
+};
+
+
+
+/*-------------------------------------------------*/
+/* Input scale factor of Arai algorithm            */
+/* (scaled up 16 bits for fixed point operations)  */
+/*-------------------------------------------------*/
+
+#define IPSF(n)	Ipsf[n]
+
+static
+const uint16_t Ipsf[64] = {	/* See also aa_idct.png */
+	(uint16_t)(1.00000*8192), (uint16_t)(1.38704*8192), (uint16_t)(1.30656*8192), (uint16_t)(1.17588*8192), (uint16_t)(1.00000*8192), (uint16_t)(0.78570*8192), (uint16_t)(0.54120*8192), (uint16_t)(0.27590*8192),
+	(uint16_t)(1.38704*8192), (uint16_t)(1.92388*8192), (uint16_t)(1.81226*8192), (uint16_t)(1.63099*8192), (uint16_t)(1.38704*8192), (uint16_t)(1.08979*8192), (uint16_t)(0.75066*8192), (uint16_t)(0.38268*8192),
+	(uint16_t)(1.30656*8192), (uint16_t)(1.81226*8192), (uint16_t)(1.70711*8192), (uint16_t)(1.53636*8192), (uint16_t)(1.30656*8192), (uint16_t)(1.02656*8192), (uint16_t)(0.70711*8192), (uint16_t)(0.36048*8192),
+	(uint16_t)(1.17588*8192), (uint16_t)(1.63099*8192), (uint16_t)(1.53636*8192), (uint16_t)(1.38268*8192), (uint16_t)(1.17588*8192), (uint16_t)(0.92388*8192), (uint16_t)(0.63638*8192), (uint16_t)(0.32442*8192),
+	(uint16_t)(1.00000*8192), (uint16_t)(1.38704*8192), (uint16_t)(1.30656*8192), (uint16_t)(1.17588*8192), (uint16_t)(1.00000*8192), (uint16_t)(0.78570*8192), (uint16_t)(0.54120*8192), (uint16_t)(0.27590*8192),
+	(uint16_t)(0.78570*8192), (uint16_t)(1.08979*8192), (uint16_t)(1.02656*8192), (uint16_t)(0.92388*8192), (uint16_t)(0.78570*8192), (uint16_t)(0.61732*8192), (uint16_t)(0.42522*8192), (uint16_t)(0.21677*8192),
+	(uint16_t)(0.54120*8192), (uint16_t)(0.75066*8192), (uint16_t)(0.70711*8192), (uint16_t)(0.63638*8192), (uint16_t)(0.54120*8192), (uint16_t)(0.42522*8192), (uint16_t)(0.29290*8192), (uint16_t)(0.14932*8192),
+	(uint16_t)(0.27590*8192), (uint16_t)(0.38268*8192), (uint16_t)(0.36048*8192), (uint16_t)(0.32442*8192), (uint16_t)(0.27590*8192), (uint16_t)(0.21678*8192), (uint16_t)(0.14932*8192), (uint16_t)(0.07612*8192)
+};
+
+
+
+/*---------------------------------------------*/
+/* Conversion table for fast clipping process  */
+/*---------------------------------------------*/
+
+#if JD_TBLCLIP
+
+#define BYTECLIP(v) Clip8[(unsigned)(v) & 0x3FF]
+
+static
+const uint8_t Clip8[1024] = {
+	/* 0..255 */
+	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+	32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
+	64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
+	96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
+	128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
+	160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
+	192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
+	224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255,
+	/* 256..511 */
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	/* -512..-257 */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	/* -256..-1 */
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+#else	/* JD_TBLCLIP */
+
+inline
+uint8_t BYTECLIP (
+	int val
+)
+{
+	if (val < 0) val = 0;
+	if (val > 255) val = 255;
+
+	return (uint8_t)val;
+}
+
+#endif
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Allocate a memory block from memory pool                              */
+/*-----------------------------------------------------------------------*/
+
+static
+void* alloc_pool (	/* Pointer to allocated memory block (NULL:no memory available) */
+	JDEC* jd,		/* Pointer to the decompressor object */
+	unsigned nd			/* Number of bytes to allocate */
+)
+{
+	char *rp = 0;
+
+
+	nd = (nd + 3) & ~3;			/* Align block size to the word boundary */
+
+	if (jd->sz_pool >= nd) {
+		jd->sz_pool -= nd;
+		rp = (char*)jd->pool;			/* Get start of available memory pool */
+		jd->pool = (void*)(rp + nd);	/* Allocate requierd bytes */
+	}
+
+	return (void*)rp;	/* Return allocated memory block (NULL:no memory to allocate) */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Create de-quantization and prescaling tables with a DQT segment       */
+/*-----------------------------------------------------------------------*/
+
+static
+unsigned create_qt_tbl (	/* 0:OK, !0:Failed */
+	JDEC* jd,			/* Pointer to the decompressor object */
+	const uint8_t* data,	/* Pointer to the quantizer tables */
+	unsigned ndata			/* Size of input data */
+)
+{
+	unsigned i;
+	uint8_t d, z;
+	int32_t *pb;
+
+
+	while (ndata) {	/* Process all tables in the segment */
+		if (ndata < 65) return GDISP_IMAGE_ERR_BADDATA;	/* Err: table size is unaligned */
+		ndata -= 65;
+		d = *data++;							/* Get table property */
+		if (d & 0xF0) return GDISP_IMAGE_ERR_BADDATA;			/* Err: not 8-bit resolution */
+		i = d & 3;								/* Get table ID */
+		pb = alloc_pool(jd, 64 * sizeof (int32_t));/* Allocate a memory block for the table */
+		if (!pb) return GDISP_IMAGE_ERR_NOMEMORY;				/* Err: not enough memory */
+		jd->qttbl[i] = pb;						/* Register the table */
+		for (i = 0; i < 64; i++) {				/* Load the table */
+			z = ZIG(i);							/* Zigzag-order to raster-order conversion */
+			pb[z] = (int32_t)((uint32_t)*data++ * IPSF(z));	/* Apply scale factor of Arai algorithm to the de-quantizers */
+		}
+	}
+
+	return GDISP_IMAGE_ERR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Create huffman code tables with a DHT segment                         */
+/*-----------------------------------------------------------------------*/
+
+static
+unsigned create_huffman_tbl (	/* 0:OK, !0:Failed */
+	JDEC* jd,				/* Pointer to the decompressor object */
+	const uint8_t* data,		/* Pointer to the packed huffman tables */
+	unsigned ndata				/* Size of input data */
+)
+{
+	unsigned i, j, b, np, cls, num;
+	uint8_t d, *pb, *pd;
+	uint16_t hc, *ph;
+
+
+	while (ndata) {	/* Process all tables in the segment */
+		if (ndata < 17) return GDISP_IMAGE_ERR_BADDATA;	/* Err: wrong data size */
+		ndata -= 17;
+		d = *data++;						/* Get table number and class */
+		cls = (d >> 4); num = d & 0x0F;		/* class = dc(0)/ac(1), table number = 0/1 */
+		if (d & 0xEE) return GDISP_IMAGE_ERR_BADDATA;		/* Err: invalid class/number */
+		pb = alloc_pool(jd, 16);			/* Allocate a memory block for the bit distribution table */
+		if (!pb) return GDISP_IMAGE_ERR_NOMEMORY;			/* Err: not enough memory */
+		jd->huffbits[num][cls] = pb;
+		for (np = i = 0; i < 16; i++) {		/* Load number of patterns for 1 to 16-bit code */
+			pb[i] = b = *data++;
+			np += b;	/* Get sum of code words for each code */
+		}
+
+		ph = alloc_pool(jd, np * sizeof (uint16_t));/* Allocate a memory block for the code word table */
+		if (!ph) return GDISP_IMAGE_ERR_NOMEMORY;			/* Err: not enough memory */
+		jd->huffcode[num][cls] = ph;
+		hc = 0;
+		for (j = i = 0; i < 16; i++) {		/* Re-build huffman code word table */
+			b = pb[i];
+			while (b--) ph[j++] = hc++;
+			hc <<= 1;
+		}
+
+		if (ndata < np) return GDISP_IMAGE_ERR_BADDATA;	/* Err: wrong data size */
+		ndata -= np;
+		pd = alloc_pool(jd, np);			/* Allocate a memory block for the decoded data */
+		if (!pd) return GDISP_IMAGE_ERR_NOMEMORY;			/* Err: not enough memory */
+		jd->huffdata[num][cls] = pd;
+		for (i = 0; i < np; i++) {			/* Load decoded data corresponds to each code ward */
+			d = *data++;
+			if (!cls && d > 11) return GDISP_IMAGE_ERR_BADDATA;
+			*pd++ = d;
+		}
+	}
+
+	return GDISP_IMAGE_ERR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Extract N bits from input stream                                      */
+/*-----------------------------------------------------------------------*/
+
+static
+int bitext (	/* >=0: extracted data, <0: error code */
+	JDEC* jd,	/* Pointer to the decompressor object */
+	unsigned nbit	/* Number of bits to extract (1 to 11) */
+)
+{
+	uint8_t msk, s, *dp;
+	unsigned dc, v, f;
+
+
+	msk = jd->dmsk; dc = jd->dctr; dp = jd->dptr;	/* Bit mask, number of data available, read ptr */
+	s = *dp; v = f = 0;
+	do {
+		if (!msk) {				/* Next byte? */
+			if (!dc) {			/* No input data is available, re-fill input buffer */
+				dp = jd->inbuf;	/* Top of input buffer */
+				dc = gfileRead(jd->img->f, dp, JD_SZBUF);
+				if (!dc) return 0 - (int)GDISP_IMAGE_ERR_BADDATA;	/* Err: read error or wrong stream termination */
+			} else {
+				dp++;			/* Next data ptr */
+			}
+			dc--;				/* Decrement number of available bytes */
+			if (f) {			/* In flag sequence? */
+				f = 0;			/* Exit flag sequence */
+				if (*dp != 0) return 0 - (int)GDISP_IMAGE_ERR_BADDATA;	/* Err: unexpected flag is detected (may be collapted data) */
+				*dp = s = 0xFF;			/* The flag is a data 0xFF */
+			} else {
+				s = *dp;				/* Get next data byte */
+				if (s == 0xFF) {		/* Is start of flag sequence? */
+					f = 1; continue;	/* Enter flag sequence */
+				}
+			}
+			msk = 0x80;		/* Read from MSB */
+		}
+		v <<= 1;	/* Get a bit */
+		if (s & msk) v++;
+		msk >>= 1;
+		nbit--;
+	} while (nbit);
+	jd->dmsk = msk; jd->dctr = dc; jd->dptr = dp;
+
+	return (int)v;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Extract a huffman decoded data from input stream                      */
+/*-----------------------------------------------------------------------*/
+
+static
+int huffext (			/* >=0: decoded data, <0: error code */
+	JDEC* jd,			/* Pointer to the decompressor object */
+	const uint8_t* hbits,	/* Pointer to the bit distribution table */
+	const uint16_t* hcode,	/* Pointer to the code word table */
+	const uint8_t* hdata	/* Pointer to the data table */
+)
+{
+	uint8_t msk, s, *dp;
+	unsigned dc, v, f, bl, nd;
+
+
+	msk = jd->dmsk; dc = jd->dctr; dp = jd->dptr;	/* Bit mask, number of data available, read ptr */
+	s = *dp; v = f = 0;
+	bl = 16;	/* Max code length */
+	do {
+		if (!msk) {		/* Next byte? */
+			if (!dc) {	/* No input data is available, re-fill input buffer */
+				dp = jd->inbuf;	/* Top of input buffer */
+				dc = gfileRead(jd->img->f, dp, JD_SZBUF);
+				if (!dc) return 0 - (int)GDISP_IMAGE_ERR_BADDATA;	/* Err: read error or wrong stream termination */
+			} else {
+				dp++;	/* Next data ptr */
+			}
+			dc--;		/* Decrement number of available bytes */
+			if (f) {		/* In flag sequence? */
+				f = 0;		/* Exit flag sequence */
+				if (*dp != 0)
+					return 0 - (int)GDISP_IMAGE_ERR_BADDATA;	/* Err: unexpected flag is detected (may be collapted data) */
+				*dp = s = 0xFF;			/* The flag is a data 0xFF */
+			} else {
+				s = *dp;				/* Get next data byte */
+				if (s == 0xFF) {		/* Is start of flag sequence? */
+					f = 1; continue;	/* Enter flag sequence, get trailing byte */
+				}
+			}
+			msk = 0x80;		/* Read from MSB */
+		}
+		v <<= 1;	/* Get a bit */
+		if (s & msk) v++;
+		msk >>= 1;
+
+		for (nd = *hbits++; nd; nd--) {	/* Search the code word in this bit length */
+			if (v == *hcode++) {		/* Matched? */
+				jd->dmsk = msk; jd->dctr = dc; jd->dptr = dp;
+				return *hdata;			/* Return the decoded data */
+			}
+			hdata++;
+		}
+		bl--;
+	} while (bl);
+
+	return 0 - (int)GDISP_IMAGE_ERR_BADDATA;	/* Err: code not found (may be collapted data) */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Apply Inverse-DCT in Arai Algorithm (see also aa_idct.png)            */
+/*-----------------------------------------------------------------------*/
+
+static
+void block_idct (
+	int32_t* src,	/* Input block data (de-quantized and pre-scaled for Arai Algorithm) */
+	uint8_t* dst	/* Pointer to the destination to store the block as byte array */
+)
+{
+	const int32_t M13 = (int32_t)(1.41421*4096), M2 = (int32_t)(1.08239*4096), M4 = (int32_t)(2.61313*4096), M5 = (int32_t)(1.84776*4096);
+	int32_t v0, v1, v2, v3, v4, v5, v6, v7;
+	int32_t t10, t11, t12, t13;
+	unsigned i;
+
+	/* Process columns */
+	for (i = 0; i < 8; i++) {
+		v0 = src[8 * 0];	/* Get even elements */
+		v1 = src[8 * 2];
+		v2 = src[8 * 4];
+		v3 = src[8 * 6];
+
+		t10 = v0 + v2;		/* Process the even elements */
+		t12 = v0 - v2;
+		t11 = (v1 - v3) * M13 >> 12;
+		v3 += v1;
+		t11 -= v3;
+		v0 = t10 + v3;
+		v3 = t10 - v3;
+		v1 = t11 + t12;
+		v2 = t12 - t11;
+
+		v4 = src[8 * 7];	/* Get odd elements */
+		v5 = src[8 * 1];
+		v6 = src[8 * 5];
+		v7 = src[8 * 3];
+
+		t10 = v5 - v4;		/* Process the odd elements */
+		t11 = v5 + v4;
+		t12 = v6 - v7;
+		v7 += v6;
+		v5 = (t11 - v7) * M13 >> 12;
+		v7 += t11;
+		t13 = (t10 + t12) * M5 >> 12;
+		v4 = t13 - (t10 * M2 >> 12);
+		v6 = t13 - (t12 * M4 >> 12) - v7;
+		v5 -= v6;
+		v4 -= v5;
+
+		src[8 * 0] = v0 + v7;	/* Write-back transformed values */
+		src[8 * 7] = v0 - v7;
+		src[8 * 1] = v1 + v6;
+		src[8 * 6] = v1 - v6;
+		src[8 * 2] = v2 + v5;
+		src[8 * 5] = v2 - v5;
+		src[8 * 3] = v3 + v4;
+		src[8 * 4] = v3 - v4;
+
+		src++;	/* Next column */
+	}
+
+	/* Process rows */
+	src -= 8;
+	for (i = 0; i < 8; i++) {
+		v0 = src[0] + (128L << 8);	/* Get even elements (remove DC offset (-128) here) */
+		v1 = src[2];
+		v2 = src[4];
+		v3 = src[6];
+
+		t10 = v0 + v2;				/* Process the even elements */
+		t12 = v0 - v2;
+		t11 = (v1 - v3) * M13 >> 12;
+		v3 += v1;
+		t11 -= v3;
+		v0 = t10 + v3;
+		v3 = t10 - v3;
+		v1 = t11 + t12;
+		v2 = t12 - t11;
+
+		v4 = src[7];				/* Get odd elements */
+		v5 = src[1];
+		v6 = src[5];
+		v7 = src[3];
+
+		t10 = v5 - v4;				/* Process the odd elements */
+		t11 = v5 + v4;
+		t12 = v6 - v7;
+		v7 += v6;
+		v5 = (t11 - v7) * M13 >> 12;
+		v7 += t11;
+		t13 = (t10 + t12) * M5 >> 12;
+		v4 = t13 - (t10 * M2 >> 12);
+		v6 = t13 - (t12 * M4 >> 12) - v7;
+		v5 -= v6;
+		v4 -= v5;
+
+		dst[0] = BYTECLIP((v0 + v7) >> 8);	/* Descale the transformed values 8 bits and output */
+		dst[7] = BYTECLIP((v0 - v7) >> 8);
+		dst[1] = BYTECLIP((v1 + v6) >> 8);
+		dst[6] = BYTECLIP((v1 - v6) >> 8);
+		dst[2] = BYTECLIP((v2 + v5) >> 8);
+		dst[5] = BYTECLIP((v2 - v5) >> 8);
+		dst[3] = BYTECLIP((v3 + v4) >> 8);
+		dst[4] = BYTECLIP((v3 - v4) >> 8);
+		dst += 8;
+
+		src += 8;	/* Next row */
+	}
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Load all blocks in the MCU into working buffer                        */
+/*-----------------------------------------------------------------------*/
+
+static
+gdispImageError mcu_load (
+	JDEC* jd		/* Pointer to the decompressor object */
+)
+{
+	int32_t *tmp = (int32_t*)jd->workbuf;	/* Block working buffer for de-quantize and IDCT */
+	unsigned blk, nby, nbc, i, z, id, cmp;
+	int b, d, e;
+	uint8_t *bp;
+	const uint8_t *hb, *hd;
+	const uint16_t *hc;
+	const int32_t *dqf;
+
+
+	nby = jd->msx * jd->msy;	/* Number of Y blocks (1, 2 or 4) */
+	nbc = 2;					/* Number of C blocks (2) */
+	bp = jd->mcubuf;			/* Pointer to the first block */
+
+	for (blk = 0; blk < nby + nbc; blk++) {
+		cmp = (blk < nby) ? 0 : blk - nby + 1;	/* Component number 0:Y, 1:Cb, 2:Cr */
+		id = cmp ? 1 : 0;						/* Huffman table ID of the component */
+
+		/* Extract a DC element from input stream */
+		hb = jd->huffbits[id][0];				/* Huffman table for the DC element */
+		hc = jd->huffcode[id][0];
+		hd = jd->huffdata[id][0];
+		b = huffext(jd, hb, hc, hd);			/* Extract a huffman coded data (bit length) */
+		if (b < 0) return 0 - b;				/* Err: invalid code or input */
+		d = jd->dcv[cmp];						/* DC value of previous block */
+		if (b) {								/* If there is any difference from previous block */
+			e = bitext(jd, b);					/* Extract data bits */
+			if (e < 0) return 0 - e;			/* Err: input */
+			b = 1 << (b - 1);					/* MSB position */
+			if (!(e & b)) e -= (b << 1) - 1;	/* Restore sign if needed */
+			d += e;								/* Get current value */
+			jd->dcv[cmp] = (int16_t)d;			/* Save current DC value for next block */
+		}
+		dqf = jd->qttbl[jd->qtid[cmp]];			/* De-quantizer table ID for this component */
+		tmp[0] = d * dqf[0] >> 8;				/* De-quantize, apply scale factor of Arai algorithm and descale 8 bits */
+
+		/* Extract following 63 AC elements from input stream */
+		for (i = 1; i < 64; i++) tmp[i] = 0;	/* Clear rest of elements */
+		hb = jd->huffbits[id][1];				/* Huffman table for the AC elements */
+		hc = jd->huffcode[id][1];
+		hd = jd->huffdata[id][1];
+		i = 1;					/* Top of the AC elements */
+		do {
+			b = huffext(jd, hb, hc, hd);		/* Extract a huffman coded value (zero runs and bit length) */
+			if (b == 0) break;					/* EOB? */
+			if (b < 0) return 0 - b;			/* Err: invalid code or input error */
+			z = (unsigned)b >> 4;					/* Number of leading zero elements */
+			if (z) {
+				i += z;							/* Skip zero elements */
+				if (i >= 64) return GDISP_IMAGE_ERR_BADDATA;	/* Too long zero run */
+			}
+			if (b &= 0x0F) {					/* Bit length */
+				d = bitext(jd, b);				/* Extract data bits */
+				if (d < 0) return 0 - d;		/* Err: input device */
+				b = 1 << (b - 1);				/* MSB position */
+				if (!(d & b)) d -= (b << 1) - 1;/* Restore negative value if needed */
+				z = ZIG(i);						/* Zigzag-order to raster-order converted index */
+				tmp[z] = d * dqf[z] >> 8;		/* De-quantize, apply scale factor of Arai algorithm and descale 8 bits */
+			}
+		} while (++i < 64);		/* Next AC element */
+
+		if (JD_USE_SCALE && jd->scale == 3)
+			*bp = (*tmp / 256) + 128;	/* If scale ratio is 1/8, IDCT can be ommited and only DC element is used */
+		else
+			block_idct(tmp, bp);		/* Apply IDCT and store the block to the MCU buffer */
+
+		bp += 64;				/* Next block */
+	}
+
+	return GDISP_IMAGE_ERR_OK;	/* All blocks have been loaded successfully */
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Output an MCU: Convert YCrCb to RGB and output it in RGB form         */
+/*-----------------------------------------------------------------------*/
+
+static
+gdispImageError mcu_output (
+	JDEC* jd,	/* Pointer to the decompressor object */
+	unsigned (*outfunc)(gdispImage*, void*, JRECT*),	/* RGB output function */
+	unsigned x,		/* MCU position in the image (left of the MCU) */
+	unsigned y		/* MCU position in the image (top of the MCU) */
+)
+{
+	const int CVACC = (sizeof (int) > 2) ? 1024 : 128;
+	unsigned ix, iy, mx, my, rx, ry;
+	int yy, cb, cr;
+	uint8_t *py, *pc, *rgb24;
+	JRECT rect;
+
+
+	mx = jd->msx * 8; my = jd->msy * 8;					/* MCU size (pixel) */
+	rx = (x + mx <= jd->width) ? mx : jd->width - x;	/* Output rectangular size (it may be clipped at right/bottom end) */
+	ry = (y + my <= jd->height) ? my : jd->height - y;
+	if (JD_USE_SCALE) {
+		rx >>= jd->scale; ry >>= jd->scale;
+		if (!rx || !ry) return GDISP_IMAGE_ERR_OK;					/* Skip this MCU if all pixel is to be rounded off */
+		x >>= jd->scale; y >>= jd->scale;
+	}
+	rect.left = x; rect.right = x + rx - 1;				/* Rectangular area in the frame buffer */
+	rect.top = y; rect.bottom = y + ry - 1;
+
+
+	if (!JD_USE_SCALE || jd->scale != 3) {	/* Not for 1/8 scaling */
+
+		/* Build an RGB MCU from discrete comopnents */
+		rgb24 = (uint8_t*)jd->workbuf;
+		for (iy = 0; iy < my; iy++) {
+			pc = jd->mcubuf;
+			py = pc + iy * 8;
+			if (my == 16) {		/* Double block height? */
+				pc += 64 * 4 + (iy >> 1) * 8;
+				if (iy >= 8) py += 64;
+			} else {			/* Single block height */
+				pc += mx * 8 + iy * 8;
+			}
+			for (ix = 0; ix < mx; ix++) {
+				cb = pc[0] - 128; 	/* Get Cb/Cr component and restore right level */
+				cr = pc[64] - 128;
+				if (mx == 16) {					/* Double block width? */
+					if (ix == 8) py += 64 - 8;	/* Jump to next block if double block heigt */
+					pc += ix & 1;				/* Increase chroma pointer every two pixels */
+				} else {						/* Single block width */
+					pc++;						/* Increase chroma pointer every pixel */
+				}
+				yy = *py++;			/* Get Y component */
+
+				/* Convert YCbCr to RGB */
+				*rgb24++ = /* R */ BYTECLIP(yy + ((int)(1.402 * CVACC) * cr) / CVACC);
+				*rgb24++ = /* G */ BYTECLIP(yy - ((int)(0.344 * CVACC) * cb + (int)(0.714 * CVACC) * cr) / CVACC);
+				*rgb24++ = /* B */ BYTECLIP(yy + ((int)(1.772 * CVACC) * cb) / CVACC);
+			}
+		}
+
+		/* Descale the MCU rectangular if needed */
+		if (JD_USE_SCALE && jd->scale) {
+			unsigned x, y, r, g, b, s, w, a;
+			uint8_t *op;
+
+			/* Get averaged RGB value of each square correcponds to a pixel */
+			s = jd->scale * 2;	/* Bumber of shifts for averaging */
+			w = 1 << jd->scale;	/* Width of square */
+			a = (mx - w) * 3;	/* Bytes to skip for next line in the square */
+			op = (uint8_t*)jd->workbuf;
+			for (iy = 0; iy < my; iy += w) {
+				for (ix = 0; ix < mx; ix += w) {
+					rgb24 = (uint8_t*)jd->workbuf + (iy * mx + ix) * 3;
+					r = g = b = 0;
+					for (y = 0; y < w; y++) {	/* Accumulate RGB value in the square */
+						for (x = 0; x < w; x++) {
+							r += *rgb24++;
+							g += *rgb24++;
+							b += *rgb24++;
+						}
+						rgb24 += a;
+					}							/* Put the averaged RGB value as a pixel */
+					*op++ = (uint8_t)(r >> s);
+					*op++ = (uint8_t)(g >> s);
+					*op++ = (uint8_t)(b >> s);
+				}
+			}
+		}
+
+	} else {	/* For only 1/8 scaling (left-top pixel in each block are the DC value of the block) */
+
+		/* Build a 1/8 descaled RGB MCU from discrete comopnents */
+		rgb24 = (uint8_t*)jd->workbuf;
+		pc = jd->mcubuf + mx * my;
+		cb = pc[0] - 128;		/* Get Cb/Cr component and restore right level */
+		cr = pc[64] - 128;
+		for (iy = 0; iy < my; iy += 8) {
+			py = jd->mcubuf;
+			if (iy == 8) py += 64 * 2;
+			for (ix = 0; ix < mx; ix += 8) {
+				yy = *py;	/* Get Y component */
+				py += 64;
+
+				/* Convert YCbCr to RGB */
+				*rgb24++ = /* R */ BYTECLIP(yy + ((int)(1.402 * CVACC) * cr / CVACC));
+				*rgb24++ = /* G */ BYTECLIP(yy - ((int)(0.344 * CVACC) * cb + (int)(0.714 * CVACC) * cr) / CVACC);
+				*rgb24++ = /* B */ BYTECLIP(yy + ((int)(1.772 * CVACC) * cb / CVACC));
+			}
+		}
+	}
+
+	/* Squeeze up pixel table if a part of MCU is to be truncated */
+	mx >>= jd->scale;
+	if (rx < mx) {
+		uint8_t *s, *d;
+		unsigned x, y;
+
+		s = d = (uint8_t*)jd->workbuf;
+		for (y = 0; y < ry; y++) {
+			for (x = 0; x < rx; x++) {	/* Copy effective pixels */
+				*d++ = *s++;
+				*d++ = *s++;
+				*d++ = *s++;
+			}
+			s += (mx - rx) * 3;	/* Skip truncated pixels */
+		}
+	}
+
+#if 0
+	/* Convert RGB888 to RGB565 if needed */
+	if (JD_FORMAT == 1) {
+		uint8_t *s = (uint8_t*)jd->workbuf;
+		uint16_t w, *d = (uint16_t*)s;
+		unsigned n = rx * ry;
+
+		do {
+			w = (*s++ & 0xF8) << 8;		/* RRRRR----------- */
+			w |= (*s++ & 0xFC) << 3;	/* -----GGGGGG----- */
+			w |= *s++ >> 3;				/* -----------BBBBB */
+			*d++ = w;
+		} while (--n);
+	}
+#endif
+
+	/* Output the RGB rectangular */
+	return outfunc(jd->img, jd->workbuf, &rect) ? GDISP_IMAGE_ERR_OK : GDISP_IMAGE_ERR_BADDATA;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Process restart interval                                              */
+/*-----------------------------------------------------------------------*/
+
+static
+gdispImageError restart (
+	JDEC* jd,	/* Pointer to the decompressor object */
+	uint16_t rstn	/* Expected restert sequense number */
+)
+{
+	unsigned i, dc;
+	uint16_t d;
+	uint8_t *dp;
+
+
+	/* Discard padding bits and get two bytes from the input stream */
+	dp = jd->dptr; dc = jd->dctr;
+	d = 0;
+	for (i = 0; i < 2; i++) {
+		if (!dc) {	/* No input data is available, re-fill input buffer */
+			dp = jd->inbuf;
+			dc = gfileRead(jd->img->f, dp, JD_SZBUF);
+			if (!dc) return GDISP_IMAGE_ERR_BADDATA;
+		} else {
+			dp++;
+		}
+		dc--;
+		d = (d << 8) | *dp;	/* Get a byte */
+	}
+	jd->dptr = dp; jd->dctr = dc; jd->dmsk = 0;
+
+	/* Check the marker */
+	if ((d & 0xFFD8) != 0xFFD0 || (d & 7) != (rstn & 7))
+		return GDISP_IMAGE_ERR_BADDATA;	/* Err: expected RSTn marker is not detected (may be collapted data) */
+
+	/* Reset DC offset */
+	jd->dcv[2] = jd->dcv[1] = jd->dcv[0] = 0;
+
+	return GDISP_IMAGE_ERR_OK;
+}
+
+
+
+
+/*-----------------------------------------------------------------------*/
+/* Analyze the JPEG image and Initialize decompressor object             */
+/*-----------------------------------------------------------------------*/
+
+gdispImageError jd_prepare (
+	JDEC* jd,			/* Blank decompressor object */
+	void* pool,			/* Working buffer for the decompression session */
+	gdispImage* img			/* I/O device identifier for the session */
+)
+{
+	uint8_t *seg, b;
+	uint16_t marker;
+	uint32_t ofs;
+	unsigned n, i, j, len;
+	gdispImageError rc;
+
+
+	jd->pool = pool;		/* Work memroy */
+	jd->sz_pool = JD_WORKSZ;	/* Size of given work memory */
+	jd->img = img;		/* I/O device identifier */
+	jd->nrst = 0;			/* No restart interval (default) */
+
+	for (i = 0; i < 2; i++) {	/* Nulls pointers */
+		for (j = 0; j < 2; j++) {
+			jd->huffbits[i][j] = 0;
+			jd->huffcode[i][j] = 0;
+			jd->huffdata[i][j] = 0;
+		}
+	}
+	for (i = 0; i < 4; i++) jd->qttbl[i] = 0;
+
+	jd->inbuf = seg = alloc_pool(jd, JD_SZBUF);		/* Allocate stream input buffer */
+	if (!seg) return GDISP_IMAGE_ERR_NOMEMORY;
+
+	if (gfileRead(jd->img->f, seg, 2) != 2) return GDISP_IMAGE_ERR_BADDATA;/* Check SOI marker */
+	if (gdispImageGetAlignedBE16(seg, 0) != 0xFFD8) return GDISP_IMAGE_ERR_BADDATA;	/* Err: SOI is not detected */
+	ofs = 2;
+
+	for (;;) {
+		/* Get a JPEG marker */
+		if (gfileRead(jd->img->f, seg, 4) != 4) return GDISP_IMAGE_ERR_BADDATA;
+		marker = gdispImageGetAlignedBE16(seg, 0);		/* Marker */
+		len = gdispImageGetAlignedBE16(seg, 2);			/* Length field */
+		if (len <= 2 || (marker >> 8) != 0xFF) return GDISP_IMAGE_ERR_BADDATA;
+		len -= 2;		/* Content size excluding length field */
+		ofs += 4 + len;	/* Number of bytes loaded */
+
+		switch (marker & 0xFF) {
+		case 0xC0:	/* SOF0 (baseline JPEG) */
+			/* Load segment data */
+			if (len > JD_SZBUF) return GDISP_IMAGE_ERR_NOMEMORY;
+			if (gfileRead(jd->img->f, seg, len) != len) return GDISP_IMAGE_ERR_BADDATA;
+
+			jd->width = gdispImageGetBE16(seg,3);		/* Image width in unit of pixel */
+			jd->height = gdispImageGetBE16(seg,1);		/* Image height in unit of pixel */
+			if (seg[5] != 3) return GDISP_IMAGE_ERR_BADDATA;	/* Err: Supports only Y/Cb/Cr format */
+
+			/* Check three image components */
+			for (i = 0; i < 3; i++) {
+				b = seg[7 + 3 * i];							/* Get sampling factor */
+				if (!i) {	/* Y component */
+					if (b != 0x11 && b != 0x22 && b != 0x21)/* Check sampling factor */
+						return GDISP_IMAGE_ERR_BADDATA;					/* Err: Supports only 4:4:4, 4:2:0 or 4:2:2 */
+					jd->msx = b >> 4; jd->msy = b & 15;		/* Size of MCU [blocks] */
+				} else {	/* Cb/Cr component */
+					if (b != 0x11) return GDISP_IMAGE_ERR_BADDATA;			/* Err: Sampling factor of Cr/Cb must be 1 */
+				}
+				b = seg[8 + 3 * i];							/* Get dequantizer table ID for this component */
+				if (b > 3) return GDISP_IMAGE_ERR_BADDATA;					/* Err: Invalid ID */
+				jd->qtid[i] = b;
+			}
+			break;
+
+		case 0xDD:	/* DRI */
+			/* Load segment data */
+			if (len > JD_SZBUF) return GDISP_IMAGE_ERR_NOMEMORY;
+			if (gfileRead(jd->img->f, seg, len) != len) return GDISP_IMAGE_ERR_BADDATA;
+
+			/* Get restart interval (MCUs) */
+			jd->nrst = gdispImageGetAlignedBE16(seg, 0);
+			break;
+
+		case 0xC4:	/* DHT */
+			/* Load segment data */
+			if (len > JD_SZBUF) return GDISP_IMAGE_ERR_NOMEMORY;
+			if (gfileRead(jd->img->f, seg, len) != len) return GDISP_IMAGE_ERR_BADDATA;
+
+			/* Create huffman tables */
+			rc = create_huffman_tbl(jd, seg, len);
+			if (rc) return rc;
+			break;
+
+		case 0xDB:	/* DQT */
+			/* Load segment data */
+			if (len > JD_SZBUF) return GDISP_IMAGE_ERR_NOMEMORY;
+			if (gfileRead(jd->img->f, seg, len) != len) return GDISP_IMAGE_ERR_BADDATA;
+
+			/* Create de-quantizer tables */
+			rc = create_qt_tbl(jd, seg, len);
+			if (rc) return rc;
+			break;
+
+		case 0xDA:	/* SOS */
+			/* Load segment data */
+			if (len > JD_SZBUF) return GDISP_IMAGE_ERR_NOMEMORY;
+			if (gfileRead(jd->img->f, seg, len) != len) return GDISP_IMAGE_ERR_BADDATA;
+
+			if (!jd->width || !jd->height) return GDISP_IMAGE_ERR_BADDATA;	/* Err: Invalid image size */
+
+			if (seg[0] != 3) return GDISP_IMAGE_ERR_BADDATA;				/* Err: Supports only three color components format */
+
+			/* Check if all tables corresponding to each components have been loaded */
+			for (i = 0; i < 3; i++) {
+				b = seg[2 + 2 * i];	/* Get huffman table ID */
+				if (b != 0x00 && b != 0x11)	return GDISP_IMAGE_ERR_BADDATA;	/* Err: Different table number for DC/AC element */
+				b = i ? 1 : 0;
+				if (!jd->huffbits[b][0] || !jd->huffbits[b][1])	/* Check huffman table for this component */
+					return GDISP_IMAGE_ERR_BADDATA;							/* Err: Huffman table not loaded */
+				if (!jd->qttbl[jd->qtid[i]]) return GDISP_IMAGE_ERR_BADDATA;	/* Err: Dequantizer table not loaded */
+			}
+
+			/* Allocate working buffer for MCU and RGB */
+			n = jd->msy * jd->msx;						/* Number of Y blocks in the MCU */
+			if (!n) return GDISP_IMAGE_ERR_BADDATA;					/* Err: SOF0 has not been loaded */
+			len = n * 64 * 2 + 64;						/* Allocate buffer for IDCT and RGB output */
+			if (len < 256) len = 256;					/* but at least 256 byte is required for IDCT */
+			jd->workbuf = alloc_pool(jd, len);			/* and it may occupy a part of following MCU working buffer for RGB output */
+			if (!jd->workbuf) return GDISP_IMAGE_ERR_NOMEMORY;			/* Err: not enough memory */
+			jd->mcubuf = alloc_pool(jd, (n + 2) * 64);	/* Allocate MCU working buffer */
+			if (!jd->mcubuf) return GDISP_IMAGE_ERR_NOMEMORY;			/* Err: not enough memory */
+
+			/* Pre-load the JPEG data to extract it from the bit stream */
+			jd->dptr = seg; jd->dctr = 0; jd->dmsk = 0;	/* Prepare to read bit stream */
+			if (ofs %= JD_SZBUF) {						/* Align read offset to JD_SZBUF */
+				jd->dctr = gfileRead(jd->img->f, seg + ofs, JD_SZBUF - (unsigned)ofs);
+				jd->dptr = seg + ofs - 1;
+			}
+
+			return GDISP_IMAGE_ERR_OK;		/* Initialization succeeded. Ready to decompress the JPEG image. */
+
+		case 0xC1:	/* SOF1 */
+		case 0xC2:	/* SOF2 */
+		case 0xC3:	/* SOF3 */
+		case 0xC5:	/* SOF5 */
+		case 0xC6:	/* SOF6 */
+		case 0xC7:	/* SOF7 */
+		case 0xC9:	/* SOF9 */
+		case 0xCA:	/* SOF10 */
+		case 0xCB:	/* SOF11 */
+		case 0xCD:	/* SOF13 */
+		case 0xCE:	/* SOF14 */
+		case 0xCF:	/* SOF15 */
+		case 0xD9:	/* EOI */
+			return GDISP_IMAGE_ERR_UNSUPPORTED;	/* Unsuppoted JPEG standard (may be progressive JPEG) */
+
+		default:	/* Unknown segment (comment, exif or etc..) */
+			/* Skip segment data */
+			gfileSetPos(jd->img->f, gfileGetPos(jd->img->f)+len);
+		}
+	}
+}
+
+/*-----------------------------------------------------------------------*/
+/* Start to decompress the JPEG picture                                  */
+/*-----------------------------------------------------------------------*/
+
+gdispImageError jd_decomp (
+	JDEC* jd,											/* Initialized decompression object */
+	unsigned (*outfunc)(gdispImage*, void*, JRECT*),	/* RGB output function */
+	uint8_t scale										/* Output de-scaling factor (0 to 3) */
+)
+{
+	unsigned x, y, mx, my;
+	uint16_t rst, rsc;
+	gdispImageError rc;
+
+
+	if (scale > (JD_USE_SCALE ? 3 : 0)) return GDISP_IMAGE_ERR_UNSUPPORTED;
+	jd->scale = scale;
+
+	mx = jd->msx * 8; my = jd->msy * 8;			/* Size of the MCU (pixel) */
+
+	jd->dcv[2] = jd->dcv[1] = jd->dcv[0] = 0;	/* Initialize DC values */
+	rst = rsc = 0;
+
+	rc = GDISP_IMAGE_ERR_OK;
+	for (y = 0; y < jd->height; y += my) {		/* Vertical loop of MCUs */
+		for (x = 0; x < jd->width; x += mx) {	/* Horizontal loop of MCUs */
+			if (jd->nrst && rst++ == jd->nrst) {	/* Process restart interval if enabled */
+				rc = restart(jd, rsc++);
+				if (rc != GDISP_IMAGE_ERR_OK) return rc;
+				rst = 1;
+			}
+			rc = mcu_load(jd);					/* Load an MCU (decompress huffman coded stream and apply IDCT) */
+			if (rc != GDISP_IMAGE_ERR_OK) return rc;
+			rc = mcu_output(jd, outfunc, x, y);	/* Output the MCU (color space conversion, scaling and output) */
+			if (rc != GDISP_IMAGE_ERR_OK) return rc;
+		}
+	}
+
+	return rc;
+}
+
 
 #endif /* GFX_USE_GDISP && GDISP_NEED_IMAGE && GDISP_NEED_IMAGE_JPG */
diff --git a/src/ginput/ginput_keyboard.c b/src/ginput/ginput_keyboard.c
index 0018dafb..141bdd2b 100644
--- a/src/ginput/ginput_keyboard.c
+++ b/src/ginput/ginput_keyboard.c
@@ -471,7 +471,7 @@ void _gkeyboardInit(void) {
 			static const GKeyboardVMT *	const dclist[] = {GINPUT_KEYBOARD_DRIVER_LIST};
 
 			for(i = 0; i < sizeof(dclist)/sizeof(dclist[0]); i++) {
-                if (!(dclist[i]->d.flags & GKEYBOARD_VFLG_DYNAMICONLY))
+				if (!(dclist[i]->d.flags & GKEYBOARD_VFLG_DYNAMICONLY))
 					gdriverRegister(&dclist[i]->d, 0);
 			}
 		}
@@ -481,8 +481,8 @@ void _gkeyboardInit(void) {
 		{
 			extern const GKeyboardVMT const GKEYBOARDVMT_OnlyOne[1];
 
-            if (!(GKEYBOARDVMT_OnlyOne->d.flags & GKEYBOARD_VFLG_DYNAMICONLY))
-					gdriverRegister(&GKEYBOARDVMT_OnlyOne->d, 0);
+			if (!(GKEYBOARDVMT_OnlyOne->d.flags & GKEYBOARD_VFLG_DYNAMICONLY))
+				gdriverRegister(&GKEYBOARDVMT_OnlyOne->d, 0);
 		}
 	#endif
 
@@ -493,43 +493,43 @@ void _gkeyboardDeinit(void) {
 }
 
 bool_t _gkeyboardInitDriver(GDriver *g, void *param, unsigned driverinstance, unsigned systeminstance) {
-    #define k   ((GKeyboard *)g)
+	#define k   ((GKeyboard *)g)
 	(void) param;
-    (void) systeminstance;
+	(void) systeminstance;
 
 	// The initial keyboard layout comes from the VMT
 	k->pLayout = gkvmt(k)->defLayout;
 
 	// Init the mouse
-    if (!gkvmt(k)->init((GKeyboard *)g, driverinstance))
-        return FALSE;
+	if (!gkvmt(k)->init((GKeyboard *)g, driverinstance))
+		return FALSE;
 
 	// Ensure the Poll timer is started
 	if (!gtimerIsActive(&KeyboardTimer))
 		gtimerStart(&KeyboardTimer, KeyboardPoll, 0, TRUE, GINPUT_KEYBOARD_POLL_PERIOD);
 
-    return TRUE;
+	return TRUE;
 
-    #undef k
+	#undef k
 }
 
 void _gkeyboardPostInitDriver(GDriver *g) {
-    #define     k   ((GKeyboard *)g)
+	#define     k   ((GKeyboard *)g)
 
 	// Run the init sequence from the layout microcode.
 	microengine(k, 0, FLAG_INIT);
 
-    #undef k
+	#undef k
 }
 
 void _gkeyboardDeInitDriver(GDriver *g) {
-    (void) g;
+	(void) g;
 }
 
 GSourceHandle ginputGetKeyboard(unsigned instance) {
 	if (instance == GKEYBOARD_ALL_INSTANCES)
 		return (GSourceHandle)&KeyboardTimer;
-    return (GSourceHandle)gdriverGetInstance(GDRIVER_TYPE_KEYBOARD, instance);
+	return (GSourceHandle)gdriverGetInstance(GDRIVER_TYPE_KEYBOARD, instance);
 }
 
 bool_t ginputGetKeyboardStatus(unsigned instance, GEventKeyboard *pe) {
diff --git a/src/gos/gos_chibios.c b/src/gos/gos_chibios.c
index 8bad8ed6..cb2193fe 100644
--- a/src/gos/gos_chibios.c
+++ b/src/gos/gos_chibios.c
@@ -141,10 +141,10 @@ bool_t gfxSemWaitI(gfxSem *psem)
 {
 	#if (CH_KERNEL_MAJOR == 2) || (CH_KERNEL_MAJOR == 3)
 		if (psem->sem.s_cnt <= 0)
-			return GFalse;
+			return FALSE;
 	#elif (CH_KERNEL_MAJOR == 4)
 		if (psem->sem.cnt <= 0)
-			return GFalse;
+			return FALSE;
 	#endif
 	chSemFastWaitI(&psem->sem);
 	return TRUE;
diff --git a/src/gwin/gwin_image.c b/src/gwin/gwin_image.c
index 900e7f61..855eecc9 100644
--- a/src/gwin/gwin_image.c
+++ b/src/gwin/gwin_image.c
@@ -19,6 +19,10 @@
 #define gw	((GImageObject *)gh)
 
 static void ImageDestroy(GWindowObject *gh) {
+	// Stop the timer
+	#if GWIN_NEED_IMAGE_ANIMATION
+		gtimerStop(&gw->timer);
+	#endif
 	if (gdispImageIsOpen(&gw->image))
 		gdispImageClose(&gw->image);
 }
@@ -129,7 +133,7 @@ GHandle gwinGImageCreate(GDisplay *g, GImageObject *gobj, GWindowInit *pInit) {
 	#if GWIN_NEED_IMAGE_ANIMATION
 		gtimerInit(&gobj->timer);
 	#endif
-	
+
 	gwinSetVisible((GHandle)gobj, pInit->show);
 
 	return (GHandle)gobj;
diff --git a/src/gwin/gwin_textedit.c b/src/gwin/gwin_textedit.c
index 8e639300..61c28c66 100644
--- a/src/gwin/gwin_textedit.c
+++ b/src/gwin/gwin_textedit.c
@@ -26,54 +26,54 @@
 #define gh2obj ((GTexteditObject *)gh)
 #define gw2obj ((GTexteditObject *)gw)
 
-static void TextEditRemoveChar(GWidgetObject* gw) {
+static void TextEditRemoveChar(GHandle gh) {
 	char		*p;
 	const char	*q;
 	unsigned	sz;
 	unsigned	pos;
 
-	sz = strlen(gw->text);
-	pos = gw2obj->cursorPos;
-	q = gw->text+pos;
+	sz = strlen(gh2obj->w.text);
+	pos = gh2obj->cursorPos;
+	q = gh2obj->w.text+pos;
 	
-	if (!(gw->g.flags & GWIN_FLG_ALLOCTXT)) {
+	if (!(gh->flags & GWIN_FLG_ALLOCTXT)) {
 		// Allocate and then copy
 		if (!(p = gfxAlloc(sz)))
 			return;
 		if (pos)
-			memcpy(p, gw->text, pos);
+			memcpy(p, gh2obj->w.text, pos);
 		memcpy(p+pos, q+1, sz-pos);
-		gw->g.flags |= GWIN_FLG_ALLOCTXT;
+		gh->flags |= GWIN_FLG_ALLOCTXT;
 	} else {
 		// Copy and then reallocate
 		memcpy((char *)q, q+1, sz-pos);
-		if (!(p = gfxRealloc((char *)gw->text, sz+1, sz)))		// This should never fail as we are making it smaller
+		if (!(p = gfxRealloc((char *)gh2obj->w.text, sz+1, sz)))		// This should never fail as we are making it smaller
 			return;
 	}
-	gw->text = p;
+	gh2obj->w.text = p;
 }
 
-static bool_t TextEditAddChars(GWidgetObject* gw, unsigned cnt) {
+static bool_t TextEditAddChars(GHandle gh, unsigned cnt) {
 	char		*p;
 	const char	*q;
 	unsigned	sz;
 	unsigned	pos;
 
 	// Get the size of the text buffer
-	sz = strlen(gw->text)+1;
-	pos = gw2obj->cursorPos;
+	sz = strlen(gh2obj->w.text)+1;
+	pos = gh2obj->cursorPos;
 
-	if (!(gw->g.flags & GWIN_FLG_ALLOCTXT)) {
+	if (!(gh->flags & GWIN_FLG_ALLOCTXT)) {
 		if (!(p = gfxAlloc(sz+cnt)))
 			return FALSE;
-		memcpy(p, gw->text, pos);
-		memcpy(p+pos+cnt, gw->text+pos, sz-pos);
-		gw->g.flags |= GWIN_FLG_ALLOCTXT;
-		gw->text = p;
+		memcpy(p, gh2obj->w.text, pos);
+		memcpy(p+pos+cnt, gh2obj->w.text+pos, sz-pos);
+		gh->flags |= GWIN_FLG_ALLOCTXT;
+		gh2obj->w.text = p;
 	} else {
-		if (!(p = gfxRealloc((char *)gw->text, sz, sz+cnt)))
+		if (!(p = gfxRealloc((char *)gh2obj->w.text, sz, sz+cnt)))
 			return FALSE;
-		gw->text = p;
+		gh2obj->w.text = p;
 		q = p+pos;
 		p += sz;
 		while(--p >= q)
@@ -117,76 +117,13 @@ static void TextEditMouseDown(GWidgetObject* gw, coord_t x, coord_t y) {
 
 		// Is it a special key?
 		if (pke->keystate & GKEYSTATE_SPECIAL) {
-
 			// Arrow keys to move the cursor
-			switch ((uint8_t)pke->c[0]) {
-			case GKEY_LEFT:
-				if (!gw2obj->cursorPos)
-					return;
-				gw2obj->cursorPos--;
-				break;
-			case GKEY_RIGHT:
-				if (!gw->text[gw2obj->cursorPos])
-					return;
-				gw2obj->cursorPos++;
-				break;
-			case GKEY_HOME:
-				if (!gw2obj->cursorPos)
-					return;
-				gw2obj->cursorPos = 0;
-				break;
-			case GKEY_END:
-				if (!gw->text[gw2obj->cursorPos])
-					return;
-				gw2obj->cursorPos = strlen(gw->text);
-				break;
-			default:
-				return;
-			}
-
-		} else {
+			gwinTextEditSendSpecialKey(&gw->g, (uint8_t)pke->c[0]);
+			return;
 
-			// Normal key press
-			switch((uint8_t)pke->c[0]) {
-			case GKEY_BACKSPACE:
-				// Backspace
-				if (!gw2obj->cursorPos)
-					return;
-				gw2obj->cursorPos--;
-				TextEditRemoveChar(gw);
-				break;
-			case GKEY_TAB:
-			case GKEY_LF:
-			case GKEY_CR:
-				// Move to the next field
-				_gwinMoveFocus();
-				return;
-			case GKEY_DEL:
-				// Delete
-				if (!gw->text[gw2obj->cursorPos])
-					return;
-				TextEditRemoveChar(gw);
-				break;
-			default:
-				// Ignore any other control characters
-				if ((uint8_t)pke->c[0] < GKEY_SPACE)
-					return;
-
-				// Keep the edit length to less than the maximum
-				if (gw2obj->maxSize && strlen(gw->text)+pke->bytecount > gw2obj->maxSize)
-					return;
-
-				// Make space
-				if (TextEditAddChars(gw, pke->bytecount)) {
-					// Insert the characters
-					memcpy((char *)gw->text+gw2obj->cursorPos, pke->c, pke->bytecount);
-					gw2obj->cursorPos += pke->bytecount;
-				}
-				break;
-			}
 		}
 
-		_gwinUpdate((GHandle)gw);
+		gwinTextEditSendKey(&gw->g, pke->c, pke->bytecount);
 	}
 #endif
 
@@ -246,6 +183,89 @@ GHandle gwinGTexteditCreate(GDisplay* g, GTexteditObject* wt, GWidgetInit* pInit
 	return (GHandle)wt;
 }
 
+#if (GFX_USE_GINPUT && GINPUT_NEED_KEYBOARD) || GWIN_NEED_KEYBOARD
+	void gwinTextEditSendSpecialKey(GHandle gh, uint8_t key) {
+		// Is it a valid handle?
+		if (gh->vmt != (gwinVMT*)&texteditVMT)
+			return;
+
+		// Arrow keys to move the cursor
+		switch (key) {
+		case GKEY_LEFT:
+			if (!gh2obj->cursorPos)
+				return;
+			gh2obj->cursorPos--;
+			break;
+		case GKEY_RIGHT:
+			if (!gh2obj->w.text[gh2obj->cursorPos])
+				return;
+			gh2obj->cursorPos++;
+			break;
+		case GKEY_HOME:
+			if (!gh2obj->cursorPos)
+				return;
+			gh2obj->cursorPos = 0;
+			break;
+		case GKEY_END:
+			if (!gh2obj->w.text[gh2obj->cursorPos])
+				return;
+			gh2obj->cursorPos = strlen(gh2obj->w.text);
+			break;
+		default:
+			return;
+		}
+
+		_gwinUpdate(gh);
+	}
+
+	void gwinTextEditSendKey(GHandle gh, char *key, unsigned len) {
+		// Is it a valid handle?
+		if (gh->vmt != (gwinVMT*)&texteditVMT || !key || !len)
+			return;
+
+		// Normal key press
+		switch((uint8_t)key[0]) {
+		case GKEY_BACKSPACE:
+			// Backspace
+			if (!gh2obj->cursorPos)
+				return;
+			gh2obj->cursorPos--;
+			TextEditRemoveChar(gh);
+			break;
+		case GKEY_TAB:
+		case GKEY_LF:
+		case GKEY_CR:
+			// Move to the next field
+			_gwinMoveFocus();
+			return;
+		case GKEY_DEL:
+			// Delete
+			if (!gh2obj->w.text[gh2obj->cursorPos])
+				return;
+			TextEditRemoveChar(gh);
+			break;
+		default:
+			// Ignore any other control characters
+			if ((uint8_t)key[0] < GKEY_SPACE)
+				return;
+
+			// Keep the edit length to less than the maximum
+			if (gh2obj->maxSize && strlen(gh2obj->w.text)+len > gh2obj->maxSize)
+				return;
+
+			// Make space
+			if (TextEditAddChars(gh, len)) {
+				// Insert the characters
+				memcpy((char *)gh2obj->w.text+gh2obj->cursorPos, key, len);
+				gh2obj->cursorPos += len;
+			}
+			break;
+		}
+
+		_gwinUpdate(gh);
+	}
+#endif
+
 void gwinTexteditDefaultDraw(GWidgetObject* gw, void* param)
 {
 	const char*			p;
diff --git a/src/gwin/gwin_textedit.h b/src/gwin/gwin_textedit.h
index ed2f634d..8cf6c03e 100644
--- a/src/gwin/gwin_textedit.h
+++ b/src/gwin/gwin_textedit.h
@@ -64,6 +64,32 @@ GHandle gwinGTexteditCreate(GDisplay* g, GTexteditObject* wt, GWidgetInit* pInit
 #define gwinTexteditCreate(wt, pInit, maxSize)			gwinGTexteditCreate(GDISP, wt, pInit, maxSize)
 
 /**
+ * @brief				Send a special key to the textedit such as GKEY_LEFT, GKEY_RIGHT, GKEY_HOME, GKEY_END
+ *
+ * @param[in] gh		The window handle (must be a textedit window)
+ * @param[in] key		The special key to send.
+ * @pre					Requires GINPUT_NEED_KEYBOARD or GWIN_NEED_KEYBOARD to be on
+ * @api
+ */
+void gwinTextEditSendSpecialKey(GHandle gh, uint8_t key);
+
+/**
+ * @brief				Send a normal utf8 character to the textedit
+ *
+ * @param[in] gh		The window handle (must be a textedit window)
+ * @param[in] pkey		The pointer to the utf8 character to send.
+ * @param[in] len		The length of the utf8 character in bytes.
+ * @note				This must ONLY be called with a single utf8 character at a time. Don't attempt to
+ *						send a string of characters in the one call.
+ * @note				Characters are interpreted as if they came directly from a keyboard ie a backspace
+ *						character will perform the backspace operation, a tab will send the focus to the next
+ *						control etc.
+ * @pre					Requires GINPUT_NEED_KEYBOARD or GWIN_NEED_KEYBOARD to be on
+ * @api
+ */
+void gwinTextEditSendKey(GHandle gh, char *pkey, unsigned len);
+
+/**
  * @defgroup Renderings_Textedit Renderings
  *
  * @brief				Built-in rendering functions for the textedit widget.
diff --git a/src/gwin/gwin_widget.h b/src/gwin/gwin_widget.h
index ece98a06..ce7490cd 100644
--- a/src/gwin/gwin_widget.h
+++ b/src/gwin/gwin_widget.h
@@ -356,6 +356,20 @@ bool_t gwinAttachListener(GListener *pl);
 	 * @api
 	 */
 	bool_t gwinAttachToggle(GHandle gh, uint16_t role, uint16_t instance);
+	/**
+	 * @brief	Detach a toggle from a widget
+	 * @return	TRUE on success
+	 *
+	 * @param[in] gh		The widget handle
+	 * @param[in] role		The function the toggle will perform for the widget
+	 *
+	 * @note		See the documentation on the specific widget to see the possible
+	 * 				values for the role parameter. If it is out of range, this function
+	 * 				will return FALSE
+	 *
+	 * @api
+	 */
+	bool_t gwinDetachToggle(GHandle gh, uint16_t role);
 #endif
 
 #if (GFX_USE_GINPUT && GINPUT_NEED_DIAL) || defined(__DOXYGEN__)
diff --git a/tools/gmake_scripts/os_osx.mk b/tools/gmake_scripts/os_osx.mk
index 9bfc7024..b5f99496 100644
--- a/tools/gmake_scripts/os_osx.mk
+++ b/tools/gmake_scripts/os_osx.mk
@@ -9,10 +9,10 @@
 
 # Requirements:
 #
-# OSX_SDK	The location of the SDK eg. OSX_SDK  = /Developer/SDKs/MacOSX10.7.sdk
-# OSX_ARCH	The architecture flags eg.  OSX_ARCH = -mmacosx-version-min=10.3
+# OSX_SDK	The location of the SDK eg. OSX_SDK  = /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk
+# OSX_ARCH	The architecture flags eg.  OSX_ARCH = -mmacosx-version-min=10.12
 #
 
 SRCFLAGS	+= -isysroot $(OSX_SDK) $(OSX_ARCH)
 LDFLAGS		+= -pthread -Wl,-syslibroot,$(OSX_SDK) $(OSX_ARCH)
-OPT_CPU = x86
+OPT_CPU = x64