[people/ms/u-boot.git] / tools / easylogo / easylogo.c

/*
** Easylogo TGA->header converter
** ==============================
** (C) 2000 by Paolo Scaffardi (arsenio@tin.it)
** AIRVENT SAM s.p.a - RIMINI(ITALY)
** (C) 2007-2008 Mike Frysinger <vapier@gentoo.org>
**
** This is still under construction!
*/

#include <errno.h>
#include <getopt.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>

#pragma pack(1)

/*#define ENABLE_ASCII_BANNERS */

typedef struct {
	unsigned char id;
	unsigned char ColorMapType;
	unsigned char ImageTypeCode;
	unsigned short ColorMapOrigin;
	unsigned short ColorMapLenght;
	unsigned char ColorMapEntrySize;
	unsigned short ImageXOrigin;
	unsigned short ImageYOrigin;
	unsigned short ImageWidth;
	unsigned short ImageHeight;
	unsigned char ImagePixelSize;
	unsigned char ImageDescriptorByte;
} tga_header_t;

typedef struct {
	unsigned char r, g, b;
} rgb_t;

typedef struct {
	unsigned char b, g, r;
} bgr_t;

typedef struct {
	unsigned char Cb, y1, Cr, y2;
} yuyv_t;

typedef struct {
	void *data, *palette;
	int width, height, pixels, bpp, pixel_size, size, palette_size, yuyv;
} image_t;

void *xmalloc (size_t size)
{
	void *ret = malloc (size);
	if (!ret) {
		fprintf (stderr, "\nerror: malloc(%zu) failed: %s",
			size, strerror(errno));
		exit (1);
	}
	return ret;
}

void StringUpperCase (char *str)
{
	int count = strlen (str);
	char c;

	while (count--) {
		c = *str;
		if ((c >= 'a') && (c <= 'z'))
			*str = 'A' + (c - 'a');
		str++;
	}
}

void StringLowerCase (char *str)
{
	int count = strlen (str);
	char c;

	while (count--) {
		c = *str;
		if ((c >= 'A') && (c <= 'Z'))
			*str = 'a' + (c - 'A');
		str++;
	}
}
void pixel_rgb_to_yuyv (rgb_t * rgb_pixel, yuyv_t * yuyv_pixel)
{
	unsigned int pR, pG, pB;

	/* Transform (0-255) components to (0-100) */
	pR = rgb_pixel->r * 100 / 255;
	pG = rgb_pixel->g * 100 / 255;
	pB = rgb_pixel->b * 100 / 255;

	/* Calculate YUV values (0-255) from RGB beetween 0-100 */
	yuyv_pixel->y1 = yuyv_pixel->y2 = 209 * (pR + pG + pB) / 300 + 16;
	yuyv_pixel->Cb = pB - (pR / 4) - (pG * 3 / 4) + 128;
	yuyv_pixel->Cr = pR - (pG * 3 / 4) - (pB / 4) + 128;

	return;
}

void printlogo_rgb (rgb_t * data, int w, int h)
{
	int x, y;

	for (y = 0; y < h; y++) {
		for (x = 0; x < w; x++, data++)
			if ((data->r <
			     30) /*&&(data->g == 0)&&(data->b == 0) */ )
				printf (" ");
			else
				printf ("X");
		printf ("\n");
	}
}

void printlogo_yuyv (unsigned short *data, int w, int h)
{
	int x, y;

	for (y = 0; y < h; y++) {
		for (x = 0; x < w; x++, data++)
			if (*data == 0x1080)	/* Because of inverted on i386! */
				printf (" ");
			else
				printf ("X");
		printf ("\n");
	}
}

static inline unsigned short le16_to_cpu (unsigned short val)
{
	union {
		unsigned char pval[2];
		unsigned short val;
	} swapped;

	swapped.val = val;
	return (swapped.pval[1] << 8) + swapped.pval[0];
}

int image_load_tga (image_t * image, char *filename)
{
	FILE *file;
	tga_header_t header;
	int i;
	unsigned char app;
	rgb_t *p;

	if ((file = fopen (filename, "rb")) == NULL)
		return -1;

	fread (&header, sizeof (header), 1, file);

	/* byte swap: tga is little endian, host is ??? */
	header.ColorMapOrigin = le16_to_cpu (header.ColorMapOrigin);
	header.ColorMapLenght = le16_to_cpu (header.ColorMapLenght);
	header.ImageXOrigin = le16_to_cpu (header.ImageXOrigin);
	header.ImageYOrigin = le16_to_cpu (header.ImageYOrigin);
	header.ImageWidth = le16_to_cpu (header.ImageWidth);
	header.ImageHeight = le16_to_cpu (header.ImageHeight);

	image->width = header.ImageWidth;
	image->height = header.ImageHeight;

	switch (header.ImageTypeCode) {
	case 2:		/* Uncompressed RGB */
		image->yuyv = 0;
		image->palette_size = 0;
		image->palette = NULL;
		break;

	default:
		printf ("Format not supported!\n");
		return -1;
	}

	image->bpp = header.ImagePixelSize;
	image->pixel_size = ((image->bpp - 1) / 8) + 1;
	image->pixels = image->width * image->height;
	image->size = image->pixels * image->pixel_size;
	image->data = xmalloc (image->size);

	if (image->bpp != 24) {
		printf ("Bpp not supported: %d!\n", image->bpp);
		return -1;
	}

	fread (image->data, image->size, 1, file);

/* Swapping R and B values */

	p = image->data;
	for (i = 0; i < image->pixels; i++, p++) {
		app = p->r;
		p->r = p->b;
		p->b = app;
	}

/* Swapping image */

	if (!(header.ImageDescriptorByte & 0x20)) {
		unsigned char *temp = xmalloc (image->size);
		int linesize = image->pixel_size * image->width;
		void *dest = image->data,
			*source = temp + image->size - linesize;

		printf ("S");
		if (temp == NULL) {
			printf ("Cannot alloc temp buffer!\n");
			return -1;
		}

		memcpy (temp, image->data, image->size);
		for (i = 0; i < image->height;
		     i++, dest += linesize, source -= linesize)
			memcpy (dest, source, linesize);

		free (temp);
	}
#ifdef ENABLE_ASCII_BANNERS
	printlogo_rgb (image->data, image->width, image->height);
#endif

	fclose (file);
	return 0;
}

void image_free (image_t * image)
{
	free (image->data);
	free (image->palette);
}

int image_rgb_to_yuyv (image_t * rgb_image, image_t * yuyv_image)
{
	rgb_t *rgb_ptr = (rgb_t *) rgb_image->data;
	yuyv_t yuyv;
	unsigned short *dest;
	int count = 0;

	yuyv_image->pixel_size = 2;
	yuyv_image->bpp = 16;
	yuyv_image->yuyv = 1;
	yuyv_image->width = rgb_image->width;
	yuyv_image->height = rgb_image->height;
	yuyv_image->pixels = yuyv_image->width * yuyv_image->height;
	yuyv_image->size = yuyv_image->pixels * yuyv_image->pixel_size;
	dest = (unsigned short *) (yuyv_image->data =
				   xmalloc (yuyv_image->size));
	yuyv_image->palette = 0;
	yuyv_image->palette_size = 0;

	while ((count++) < rgb_image->pixels) {
		pixel_rgb_to_yuyv (rgb_ptr++, &yuyv);

		if ((count & 1) == 0)	/* Was == 0 */
			memcpy (dest, ((void *) &yuyv) + 2, sizeof (short));
		else
			memcpy (dest, (void *) &yuyv, sizeof (short));

		dest++;
	}

#ifdef ENABLE_ASCII_BANNERS
	printlogo_yuyv (yuyv_image->data, yuyv_image->width,
			yuyv_image->height);
#endif
	return 0;
}

int image_rgb888_to_rgb565(image_t *rgb888_image, image_t *rgb565_image)
{
	rgb_t *rgb_ptr = (rgb_t *) rgb888_image->data;
	unsigned short *dest;
	int count = 0;

	rgb565_image->pixel_size = 2;
	rgb565_image->bpp = 16;
	rgb565_image->yuyv = 0;
	rgb565_image->width = rgb888_image->width;
	rgb565_image->height = rgb888_image->height;
	rgb565_image->pixels = rgb565_image->width * rgb565_image->height;
	rgb565_image->size = rgb565_image->pixels * rgb565_image->pixel_size;
	dest = (unsigned short *) (rgb565_image->data =
				   xmalloc(rgb565_image->size));
	rgb565_image->palette = 0;
	rgb565_image->palette_size = 0;

	while ((count++) < rgb888_image->pixels) {

		*dest++ = ((rgb_ptr->b & 0xF8) << 8) |
			((rgb_ptr->g & 0xFC) << 3) |
			(rgb_ptr->r >> 3);
		rgb_ptr++;
	}

	return 0;
}

int use_gzip = 0;

int image_save_header (image_t * image, char *filename, char *varname)
{
	FILE *file = fopen (filename, "w");
	char app[256], str[256] = "", def_name[64];
	int count = image->size, col = 0;
	unsigned char *dataptr = image->data;

	if (file == NULL)
		return -1;

	/*  Author information */
	fprintf (file,
		 "/*\n * Generated by EasyLogo, (C) 2000 by Paolo Scaffardi\n *\n");
	fprintf (file,
		 " * To use this, include it and call: easylogo_plot(screen,&%s, width,x,y)\n *\n",
		 varname);
	fprintf (file,
		 " * Where:\t'screen'\tis the pointer to the frame buffer\n");
	fprintf (file, " *\t\t'width'\tis the screen width\n");
	fprintf (file, " *\t\t'x'\t\tis the horizontal position\n");
	fprintf (file, " *\t\t'y'\t\tis the vertical position\n */\n\n");

	/*  gzip compress */
	if (use_gzip & 0x1) {
		const char *errstr = NULL;
		unsigned char *compressed;
		struct stat st;
		FILE *gz;
		char *gzfilename = xmalloc(strlen (filename) + 20);
		char *gzcmd = xmalloc(strlen (filename) + 20);

		sprintf (gzfilename, "%s.gz", filename);
		sprintf (gzcmd, "gzip > %s", gzfilename);
		gz = popen (gzcmd, "w");
		if (!gz) {
			errstr = "\nerror: popen() failed";
			goto done;
		}
		if (fwrite (image->data, image->size, 1, gz) != 1) {
			errstr = "\nerror: writing data to gzip failed";
			goto done;
		}
		if (pclose (gz)) {
			errstr = "\nerror: gzip process failed";
			goto done;
		}

		gz = fopen (gzfilename, "r");
		if (!gz) {
			errstr = "\nerror: open() on gzip data failed";
			goto done;
		}
		if (stat (gzfilename, &st)) {
			errstr = "\nerror: stat() on gzip file failed";
			goto done;
		}
		compressed = xmalloc (st.st_size);
		if (fread (compressed, st.st_size, 1, gz) != 1) {
			errstr = "\nerror: reading gzip data failed";
			goto done;
		}
		fclose (gz);

		unlink (gzfilename);

		dataptr = compressed;
		count = st.st_size;
		fprintf (file, "#define EASYLOGO_ENABLE_GZIP %i\n\n", count);
		if (use_gzip & 0x2)
			fprintf (file, "static unsigned char EASYLOGO_DECOMP_BUFFER[%i];\n\n", image->size);

 done:
		free (gzfilename);
		free (gzcmd);

		if (errstr) {
			perror (errstr);
			return -1;
		}
	}

	/*	Headers */
	fprintf (file, "#include <video_easylogo.h>\n\n");
	/*	Macros */
	strcpy (def_name, varname);
	StringUpperCase (def_name);
	fprintf (file, "#define	DEF_%s_WIDTH\t\t%d\n", def_name,
		 image->width);
	fprintf (file, "#define	DEF_%s_HEIGHT\t\t%d\n", def_name,
		 image->height);
	fprintf (file, "#define	DEF_%s_PIXELS\t\t%d\n", def_name,
		 image->pixels);
	fprintf (file, "#define	DEF_%s_BPP\t\t%d\n", def_name, image->bpp);
	fprintf (file, "#define	DEF_%s_PIXEL_SIZE\t%d\n", def_name,
		 image->pixel_size);
	fprintf (file, "#define	DEF_%s_SIZE\t\t%d\n\n", def_name,
		 image->size);
	/*  Declaration */
	fprintf (file, "unsigned char DEF_%s_DATA[] = {\n",
		 def_name);

	/*	Data */
	while (count)
		switch (col) {
		case 0:
			sprintf (str, " 0x%02x", *dataptr++);
			col++;
			count--;
			break;

		case 16:
			fprintf (file, "%s", str);
			if (count > 0)
				fprintf (file, ",");
			fprintf (file, "\n");

			col = 0;
			break;

		default:
			strcpy (app, str);
			sprintf (str, "%s, 0x%02x", app, *dataptr++);
			col++;
			count--;
			break;
		}

	if (col)
		fprintf (file, "%s\n", str);

	/*	End of declaration */
	fprintf (file, "};\n\n");
	/*	Variable */
	fprintf (file, "fastimage_t %s = {\n", varname);
	fprintf (file, "		DEF_%s_DATA,\n", def_name);
	fprintf (file, "		DEF_%s_WIDTH,\n", def_name);
	fprintf (file, "		DEF_%s_HEIGHT,\n", def_name);
	fprintf (file, "		DEF_%s_BPP,\n", def_name);
	fprintf (file, "		DEF_%s_PIXEL_SIZE,\n", def_name);
	fprintf (file, "		DEF_%s_SIZE\n};\n", def_name);

	fclose (file);

	return 0;
}

#define DEF_FILELEN	256

static void usage (int exit_status)
{
	puts (
		"EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n"
		"\n"
		"Syntax:	easylogo [options] inputfile [outputvar [outputfile]]\n"
		"\n"
		"Options:\n"
		"  -r     Output RGB888 instead of YUYV\n"
		"  -s     Output RGB565 instead of YUYV\n"
		"  -g     Compress with gzip\n"
		"  -b     Preallocate space in bss for decompressing image\n"
		"  -h     Help output\n"
		"\n"
		"Where: 'inputfile'   is the TGA image to load\n"
		"       'outputvar'   is the variable name to create\n"
		"       'outputfile'  is the output header file (default is 'inputfile.h')"
	);
	exit (exit_status);
}

int main (int argc, char *argv[])
{
	int c;
	bool use_rgb888 = false;
	bool use_rgb565 = false;
	char inputfile[DEF_FILELEN],
		outputfile[DEF_FILELEN], varname[DEF_FILELEN];

	image_t rgb888_logo, rgb565_logo, yuyv_logo;

	while ((c = getopt(argc, argv, "hrsgb")) > 0) {
		switch (c) {
		case 'h':
			usage (0);
			break;
		case 'r':
			use_rgb888 = true;
			puts("Using 24-bit RGB888 Output Fromat");
			break;
		case 's':
			use_rgb565 = true;
			puts("Using 16-bit RGB565 Output Fromat");
			break;
		case 'g':
			use_gzip |= 0x1;
			puts ("Compressing with gzip");
			break;
		case 'b':
			use_gzip |= 0x2;
			puts ("Preallocating bss space for decompressing image");
			break;
		default:
			usage (1);
			break;
		}
	}

	c = argc - optind;
	if (c > 4 || c < 1)
		usage (1);

	strcpy (inputfile, argv[optind]);

	if (c > 1)
		strcpy (varname, argv[optind + 1]);
	else {
		/* transform "input.tga" to just "input" */
		char *dot;
		strcpy (varname, inputfile);
		dot = strchr (varname, '.');
		if (dot)
			*dot = '\0';
	}

	if (c > 2)
		strcpy (outputfile, argv[optind + 2]);
	else {
		/* just append ".h" to input file name */
		strcpy (outputfile, inputfile);
		strcat (outputfile, ".h");
	}

	/* Make sure the output is sent as soon as we printf() */
	setbuf(stdout, NULL);

	printf ("Doing '%s' (%s) from '%s'...",
		outputfile, varname, inputfile);

	/* Import TGA logo */

	printf ("L");
	if (image_load_tga(&rgb888_logo, inputfile) < 0) {
		printf ("input file not found!\n");
		exit (1);
	}

	/* Convert, save, and free the image */

	if (!use_rgb888 && !use_rgb565) {
		printf ("C");
		image_rgb_to_yuyv(&rgb888_logo, &yuyv_logo);

		printf("S");
		image_save_header(&yuyv_logo, outputfile, varname);
		image_free(&yuyv_logo);
	} else if (use_rgb565) {
		printf("C");
		image_rgb888_to_rgb565(&rgb888_logo, &rgb565_logo);

		printf("S");
		image_save_header(&rgb565_logo, outputfile, varname);
		image_free(&rgb565_logo);
	} else {
		printf("S");
		image_save_header(&rgb888_logo, outputfile, varname);
	}

	/* Free original image and copy */

	image_free(&rgb888_logo);

	printf ("\n");

	return 0;
}
Commit	Line	Data
fe8c2806 WD	1	/*
	2	** Easylogo TGA->header converter
	3	** ==============================
	4	** (C) 2000 by Paolo Scaffardi (arsenio@tin.it)
	5	** AIRVENT SAM s.p.a - RIMINI(ITALY)
24113a44	6	** (C) 2007-2008 Mike Frysinger <vapier@gentoo.org>
fe8c2806 WD	7	**
	8	** This is still under construction!
	9	*/
	10
24113a44	11	#include <errno.h>
edfed1d9 MF	12	#include <getopt.h>
edfed1d9 MF	13	#include <stdbool.h>
fe8c2806	14	#include <stdio.h>
38d299c2 MF	15	#include <stdlib.h>
38d299c2 MF	16	#include <string.h>
24113a44 MF	17	#include <unistd.h>
24113a44 MF	18	#include <sys/stat.h>
fe8c2806 WD	19
	20	#pragma pack(1)
	21
	22	/#define ENABLE_ASCII_BANNERS /
	23
	24	typedef struct {
6007f325 WD	25	unsigned char id;
	26	unsigned char ColorMapType;
	27	unsigned char ImageTypeCode;
	28	unsigned short ColorMapOrigin;
	29	unsigned short ColorMapLenght;
	30	unsigned char ColorMapEntrySize;
	31	unsigned short ImageXOrigin;
	32	unsigned short ImageYOrigin;
	33	unsigned short ImageWidth;
	34	unsigned short ImageHeight;
	35	unsigned char ImagePixelSize;
	36	unsigned char ImageDescriptorByte;
fe8c2806 WD	37	} tga_header_t;
	38
	39	typedef struct {
6007f325 WD	40	unsigned char r, g, b;
6007f325 WD	41	} rgb_t;
fe8c2806 WD	42
fe8c2806 WD	43	typedef struct {
6007f325 WD	44	unsigned char b, g, r;
6007f325 WD	45	} bgr_t;
fe8c2806 WD	46
fe8c2806 WD	47	typedef struct {
6007f325 WD	48	unsigned char Cb, y1, Cr, y2;
6007f325 WD	49	} yuyv_t;
fe8c2806 WD	50
fe8c2806 WD	51	typedef struct {
6007f325 WD	52	void data, palette;
	53	int width, height, pixels, bpp, pixel_size, size, palette_size, yuyv;
	54	} image_t;
fe8c2806	55
24113a44 MF	56	void *xmalloc (size_t size)
	57	{
	58	void *ret = malloc (size);
	59	if (!ret) {
	60	fprintf (stderr, "\nerror: malloc(%zu) failed: %s",
	61	size, strerror(errno));
	62	exit (1);
	63	}
	64	return ret;
	65	}
	66
fe8c2806 WD	67	void StringUpperCase (char *str)
fe8c2806 WD	68	{
6007f325 WD	69	int count = strlen (str);
	70	char c;
	71
	72	while (count--) {
	73	c = *str;
	74	if ((c >= 'a') && (c <= 'z'))
	75	*str = 'A' + (c - 'a');
	76	str++;
	77	}
fe8c2806 WD	78	}
	79
	80	void StringLowerCase (char *str)
	81	{
6007f325 WD	82	int count = strlen (str);
	83	char c;
	84
	85	while (count--) {
	86	c = *str;
	87	if ((c >= 'A') && (c <= 'Z'))
	88	*str = 'a' + (c - 'A');
	89	str++;
	90	}
fe8c2806	91	}
6007f325	92	void pixel_rgb_to_yuyv (rgb_t * rgb_pixel, yuyv_t * yuyv_pixel)
fe8c2806	93	{
6007f325	94	unsigned int pR, pG, pB;
fe8c2806	95
6007f325 WD	96	/* Transform (0-255) components to (0-100) */
	97	pR = rgb_pixel->r * 100 / 255;
	98	pG = rgb_pixel->g * 100 / 255;
	99	pB = rgb_pixel->b * 100 / 255;
fe8c2806	100
6007f325 WD	101	/* Calculate YUV values (0-255) from RGB beetween 0-100 */
	102	yuyv_pixel->y1 = yuyv_pixel->y2 = 209 * (pR + pG + pB) / 300 + 16;
	103	yuyv_pixel->Cb = pB - (pR / 4) - (pG * 3 / 4) + 128;
	104	yuyv_pixel->Cr = pR - (pG * 3 / 4) - (pB / 4) + 128;
fe8c2806	105
6007f325	106	return;
fe8c2806 WD	107	}
fe8c2806 WD	108
6007f325	109	void printlogo_rgb (rgb_t * data, int w, int h)
fe8c2806	110	{
6007f325 WD	111	int x, y;
	112
	113	for (y = 0; y < h; y++) {
	114	for (x = 0; x < w; x++, data++)
	115	if ((data->r <
	116	30) /&&(data->g == 0)&&(data->b == 0) / )
	117	printf (" ");
	118	else
	119	printf ("X");
	120	printf ("\n");
	121	}
fe8c2806 WD	122	}
	123
	124	void printlogo_yuyv (unsigned short *data, int w, int h)
	125	{
6007f325 WD	126	int x, y;
	127
	128	for (y = 0; y < h; y++) {
	129	for (x = 0; x < w; x++, data++)
	130	if (data == 0x1080) / Because of inverted on i386! */
	131	printf (" ");
	132	else
	133	printf ("X");
	134	printf ("\n");
	135	}
fe8c2806 WD	136	}
fe8c2806 WD	137
fc6414ec MF	138	static inline unsigned short le16_to_cpu (unsigned short val)
fc6414ec MF	139	{
6007f325 WD	140	union {
	141	unsigned char pval[2];
	142	unsigned short val;
	143	} swapped;
	144
	145	swapped.val = val;
	146	return (swapped.pval[1] << 8) + swapped.pval[0];
fc6414ec MF	147	}
fc6414ec MF	148
6007f325	149	int image_load_tga (image_t * image, char *filename)
fe8c2806	150	{
6007f325 WD	151	FILE *file;
	152	tga_header_t header;
	153	int i;
	154	unsigned char app;
	155	rgb_t *p;
	156
	157	if ((file = fopen (filename, "rb")) == NULL)
	158	return -1;
	159
	160	fread (&header, sizeof (header), 1, file);
	161
	162	/* byte swap: tga is little endian, host is ??? */
	163	header.ColorMapOrigin = le16_to_cpu (header.ColorMapOrigin);
	164	header.ColorMapLenght = le16_to_cpu (header.ColorMapLenght);
	165	header.ImageXOrigin = le16_to_cpu (header.ImageXOrigin);
	166	header.ImageYOrigin = le16_to_cpu (header.ImageYOrigin);
	167	header.ImageWidth = le16_to_cpu (header.ImageWidth);
	168	header.ImageHeight = le16_to_cpu (header.ImageHeight);
	169
	170	image->width = header.ImageWidth;
	171	image->height = header.ImageHeight;
	172
	173	switch (header.ImageTypeCode) {
	174	case 2: /* Uncompressed RGB */
	175	image->yuyv = 0;
	176	image->palette_size = 0;
	177	image->palette = NULL;
	178	break;
fe8c2806 WD	179
fe8c2806 WD	180	default:
6007f325 WD	181	printf ("Format not supported!\n");
	182	return -1;
	183	}
fe8c2806	184
6007f325 WD	185	image->bpp = header.ImagePixelSize;
	186	image->pixel_size = ((image->bpp - 1) / 8) + 1;
	187	image->pixels = image->width * image->height;
	188	image->size = image->pixels * image->pixel_size;
24113a44	189	image->data = xmalloc (image->size);
fe8c2806	190
6007f325 WD	191	if (image->bpp != 24) {
	192	printf ("Bpp not supported: %d!\n", image->bpp);
	193	return -1;
	194	}
fe8c2806	195
6007f325	196	fread (image->data, image->size, 1, file);
fe8c2806 WD	197
	198	/* Swapping R and B values */
	199
6007f325 WD	200	p = image->data;
	201	for (i = 0; i < image->pixels; i++, p++) {
	202	app = p->r;
	203	p->r = p->b;
	204	p->b = app;
	205	}
fe8c2806 WD	206
	207	/* Swapping image */
	208
6007f325	209	if (!(header.ImageDescriptorByte & 0x20)) {
24113a44	210	unsigned char *temp = xmalloc (image->size);
6007f325 WD	211	int linesize = image->pixel_size * image->width;
	212	void *dest = image->data,
	213	*source = temp + image->size - linesize;
fe8c2806	214
6007f325 WD	215	printf ("S");
	216	if (temp == NULL) {
	217	printf ("Cannot alloc temp buffer!\n");
	218	return -1;
	219	}
fe8c2806	220
6007f325 WD	221	memcpy (temp, image->data, image->size);
	222	for (i = 0; i < image->height;
	223	i++, dest += linesize, source -= linesize)
	224	memcpy (dest, source, linesize);
fe8c2806	225
6007f325 WD	226	free (temp);
6007f325 WD	227	}
fe8c2806	228	#ifdef ENABLE_ASCII_BANNERS
6007f325	229	printlogo_rgb (image->data, image->width, image->height);
fe8c2806 WD	230	#endif
fe8c2806 WD	231
6007f325 WD	232	fclose (file);
6007f325 WD	233	return 0;
fe8c2806 WD	234	}
fe8c2806 WD	235
edfed1d9	236	void image_free (image_t * image)
fe8c2806	237	{
edfed1d9 MF	238	free (image->data);
edfed1d9 MF	239	free (image->palette);
fe8c2806 WD	240	}
fe8c2806 WD	241
6007f325	242	int image_rgb_to_yuyv (image_t * rgb_image, image_t * yuyv_image)
fe8c2806	243	{
6007f325 WD	244	rgb_t rgb_ptr = (rgb_t ) rgb_image->data;
	245	yuyv_t yuyv;
	246	unsigned short *dest;
	247	int count = 0;
	248
	249	yuyv_image->pixel_size = 2;
	250	yuyv_image->bpp = 16;
	251	yuyv_image->yuyv = 1;
	252	yuyv_image->width = rgb_image->width;
	253	yuyv_image->height = rgb_image->height;
	254	yuyv_image->pixels = yuyv_image->width * yuyv_image->height;
	255	yuyv_image->size = yuyv_image->pixels * yuyv_image->pixel_size;
	256	dest = (unsigned short *) (yuyv_image->data =
24113a44	257	xmalloc (yuyv_image->size));
6007f325 WD	258	yuyv_image->palette = 0;
	259	yuyv_image->palette_size = 0;
	260
	261	while ((count++) < rgb_image->pixels) {
fe8c2806 WD	262	pixel_rgb_to_yuyv (rgb_ptr++, &yuyv);
fe8c2806 WD	263
6007f325 WD	264	if ((count & 1) == 0) /* Was == 0 */
6007f325 WD	265	memcpy (dest, ((void *) &yuyv) + 2, sizeof (short));
fe8c2806	266	else
6007f325	267	memcpy (dest, (void *) &yuyv, sizeof (short));
fe8c2806	268
6007f325	269	dest++;
fe8c2806 WD	270	}
	271
	272	#ifdef ENABLE_ASCII_BANNERS
6007f325 WD	273	printlogo_yuyv (yuyv_image->data, yuyv_image->width,
6007f325 WD	274	yuyv_image->height);
fe8c2806	275	#endif
6007f325	276	return 0;
fe8c2806 WD	277	}
fe8c2806 WD	278
7293e057 MH	279	int image_rgb888_to_rgb565(image_t rgb888_image, image_t rgb565_image)
	280	{
	281	rgb_t rgb_ptr = (rgb_t ) rgb888_image->data;
	282	unsigned short *dest;
	283	int count = 0;
	284
	285	rgb565_image->pixel_size = 2;
	286	rgb565_image->bpp = 16;
	287	rgb565_image->yuyv = 0;
	288	rgb565_image->width = rgb888_image->width;
	289	rgb565_image->height = rgb888_image->height;
	290	rgb565_image->pixels = rgb565_image->width * rgb565_image->height;
	291	rgb565_image->size = rgb565_image->pixels * rgb565_image->pixel_size;
	292	dest = (unsigned short *) (rgb565_image->data =
	293	xmalloc(rgb565_image->size));
	294	rgb565_image->palette = 0;
	295	rgb565_image->palette_size = 0;
	296
	297	while ((count++) < rgb888_image->pixels) {
	298
	299	*dest++ = ((rgb_ptr->b & 0xF8) << 8) \|
	300	((rgb_ptr->g & 0xFC) << 3) \|
	301	(rgb_ptr->r >> 3);
	302	rgb_ptr++;
	303	}
	304
	305	return 0;
	306	}
	307
24113a44 MF	308	int use_gzip = 0;
24113a44 MF	309
6007f325	310	int image_save_header (image_t * image, char filename, char varname)
fe8c2806	311	{
6007f325 WD	312	FILE *file = fopen (filename, "w");
	313	char app[256], str[256] = "", def_name[64];
	314	int count = image->size, col = 0;
	315	unsigned char *dataptr = image->data;
	316
	317	if (file == NULL)
	318	return -1;
	319
	320	/* Author information */
	321	fprintf (file,
	322	"/\n Generated by EasyLogo, (C) 2000 by Paolo Scaffardi\n *\n");
	323	fprintf (file,
	324	" * To use this, include it and call: easylogo_plot(screen,&%s, width,x,y)\n *\n",
	325	varname);
	326	fprintf (file,
	327	" * Where:\t'screen'\tis the pointer to the frame buffer\n");
	328	fprintf (file, " *\t\t'width'\tis the screen width\n");
	329	fprintf (file, " *\t\t'x'\t\tis the horizontal position\n");
	330	fprintf (file, " \t\t'y'\t\tis the vertical position\n /\n\n");
	331
24113a44 MF	332	/* gzip compress */
	333	if (use_gzip & 0x1) {
	334	const char *errstr = NULL;
	335	unsigned char *compressed;
	336	struct stat st;
	337	FILE *gz;
	338	char *gzfilename = xmalloc(strlen (filename) + 20);
	339	char *gzcmd = xmalloc(strlen (filename) + 20);
	340
	341	sprintf (gzfilename, "%s.gz", filename);
	342	sprintf (gzcmd, "gzip > %s", gzfilename);
	343	gz = popen (gzcmd, "w");
	344	if (!gz) {
	345	errstr = "\nerror: popen() failed";
	346	goto done;
	347	}
	348	if (fwrite (image->data, image->size, 1, gz) != 1) {
	349	errstr = "\nerror: writing data to gzip failed";
	350	goto done;
	351	}
	352	if (pclose (gz)) {
	353	errstr = "\nerror: gzip process failed";
	354	goto done;
	355	}
	356
	357	gz = fopen (gzfilename, "r");
	358	if (!gz) {
	359	errstr = "\nerror: open() on gzip data failed";
	360	goto done;
	361	}
	362	if (stat (gzfilename, &st)) {
	363	errstr = "\nerror: stat() on gzip file failed";
	364	goto done;
	365	}
	366	compressed = xmalloc (st.st_size);
	367	if (fread (compressed, st.st_size, 1, gz) != 1) {
	368	errstr = "\nerror: reading gzip data failed";
	369	goto done;
	370	}
	371	fclose (gz);
	372
	373	unlink (gzfilename);
	374
	375	dataptr = compressed;
	376	count = st.st_size;
	377	fprintf (file, "#define EASYLOGO_ENABLE_GZIP %i\n\n", count);
	378	if (use_gzip & 0x2)
	379	fprintf (file, "static unsigned char EASYLOGO_DECOMP_BUFFER[%i];\n\n", image->size);
	380
	381	done:
	382	free (gzfilename);
	383	free (gzcmd);
	384
	385	if (errstr) {
	386	perror (errstr);
	387	return -1;
	388	}
	389	}
	390
6007f325 WD	391	/* Headers */
	392	fprintf (file, "#include <video_easylogo.h>\n\n");
	393	/* Macros */
	394	strcpy (def_name, varname);
fe8c2806	395	StringUpperCase (def_name);
6007f325 WD	396	fprintf (file, "#define DEF_%s_WIDTH\t\t%d\n", def_name,
	397	image->width);
	398	fprintf (file, "#define DEF_%s_HEIGHT\t\t%d\n", def_name,
	399	image->height);
	400	fprintf (file, "#define DEF_%s_PIXELS\t\t%d\n", def_name,
	401	image->pixels);
	402	fprintf (file, "#define DEF_%s_BPP\t\t%d\n", def_name, image->bpp);
	403	fprintf (file, "#define DEF_%s_PIXEL_SIZE\t%d\n", def_name,
	404	image->pixel_size);
	405	fprintf (file, "#define DEF_%s_SIZE\t\t%d\n\n", def_name,
	406	image->size);
	407	/* Declaration */
24113a44 MF	408	fprintf (file, "unsigned char DEF_%s_DATA[] = {\n",
24113a44 MF	409	def_name);
6007f325 WD	410
	411	/* Data */
	412	while (count)
	413	switch (col) {
	414	case 0:
	415	sprintf (str, " 0x%02x", *dataptr++);
	416	col++;
	417	count--;
	418	break;
	419
	420	case 16:
	421	fprintf (file, "%s", str);
	422	if (count > 0)
	423	fprintf (file, ",");
	424	fprintf (file, "\n");
	425
	426	col = 0;
	427	break;
	428
	429	default:
	430	strcpy (app, str);
	431	sprintf (str, "%s, 0x%02x", app, *dataptr++);
	432	col++;
	433	count--;
	434	break;
fe8c2806 WD	435	}
	436
	437	if (col)
6007f325 WD	438	fprintf (file, "%s\n", str);
6007f325 WD	439
53677ef1	440	/* End of declaration */
6007f325 WD	441	fprintf (file, "};\n\n");
	442	/* Variable */
	443	fprintf (file, "fastimage_t %s = {\n", varname);
	444	fprintf (file, " DEF_%s_DATA,\n", def_name);
	445	fprintf (file, " DEF_%s_WIDTH,\n", def_name);
	446	fprintf (file, " DEF_%s_HEIGHT,\n", def_name);
	447	fprintf (file, " DEF_%s_BPP,\n", def_name);
	448	fprintf (file, " DEF_%s_PIXEL_SIZE,\n", def_name);
	449	fprintf (file, " DEF_%s_SIZE\n};\n", def_name);
fe8c2806 WD	450
	451	fclose (file);
	452
6007f325	453	return 0;
fe8c2806 WD	454	}
	455
	456	#define DEF_FILELEN 256
	457
edfed1d9 MF	458	static void usage (int exit_status)
	459	{
	460	puts (
	461	"EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n"
	462	"\n"
	463	"Syntax: easylogo [options] inputfile [outputvar [outputfile]]\n"
	464	"\n"
	465	"Options:\n"
7293e057 MH	466	" -r Output RGB888 instead of YUYV\n"
7293e057 MH	467	" -s Output RGB565 instead of YUYV\n"
24113a44 MF	468	" -g Compress with gzip\n"
24113a44 MF	469	" -b Preallocate space in bss for decompressing image\n"
edfed1d9 MF	470	" -h Help output\n"
	471	"\n"
	472	"Where: 'inputfile' is the TGA image to load\n"
	473	" 'outputvar' is the variable name to create\n"
	474	" 'outputfile' is the output header file (default is 'inputfile.h')"
	475	);
	476	exit (exit_status);
	477	}
	478
fe8c2806 WD	479	int main (int argc, char *argv[])
fe8c2806 WD	480	{
edfed1d9	481	int c;
7293e057 MH	482	bool use_rgb888 = false;
7293e057 MH	483	bool use_rgb565 = false;
6007f325 WD	484	char inputfile[DEF_FILELEN],
	485	outputfile[DEF_FILELEN], varname[DEF_FILELEN];
	486
7293e057	487	image_t rgb888_logo, rgb565_logo, yuyv_logo;
6007f325	488
7293e057	489	while ((c = getopt(argc, argv, "hrsgb")) > 0) {
edfed1d9 MF	490	switch (c) {
	491	case 'h':
	492	usage (0);
	493	break;
	494	case 'r':
7293e057 MH	495	use_rgb888 = true;
	496	puts("Using 24-bit RGB888 Output Fromat");
	497	break;
	498	case 's':
	499	use_rgb565 = true;
	500	puts("Using 16-bit RGB565 Output Fromat");
edfed1d9	501	break;
24113a44 MF	502	case 'g':
	503	use_gzip \|= 0x1;
	504	puts ("Compressing with gzip");
	505	break;
	506	case 'b':
	507	use_gzip \|= 0x2;
	508	puts ("Preallocating bss space for decompressing image");
	509	break;
edfed1d9 MF	510	default:
	511	usage (1);
	512	break;
6007f325	513	}
edfed1d9	514	}
fe8c2806	515
edfed1d9 MF	516	c = argc - optind;
	517	if (c > 4 \|\| c < 1)
	518	usage (1);
	519
	520	strcpy (inputfile, argv[optind]);
	521
	522	if (c > 1)
	523	strcpy (varname, argv[optind + 1]);
	524	else {
	525	/* transform "input.tga" to just "input" */
	526	char *dot;
	527	strcpy (varname, inputfile);
	528	dot = strchr (varname, '.');
	529	if (dot)
	530	*dot = '\0';
	531	}
fe8c2806	532
edfed1d9 MF	533	if (c > 2)
	534	strcpy (outputfile, argv[optind + 2]);
	535	else {
	536	/* just append ".h" to input file name */
	537	strcpy (outputfile, inputfile);
	538	strcat (outputfile, ".h");
6007f325	539	}
fe8c2806	540
edfed1d9 MF	541	/* Make sure the output is sent as soon as we printf() */
	542	setbuf(stdout, NULL);
	543
6007f325 WD	544	printf ("Doing '%s' (%s) from '%s'...",
6007f325 WD	545	outputfile, varname, inputfile);
fe8c2806	546
6007f325	547	/* Import TGA logo */
fe8c2806	548
6007f325	549	printf ("L");
7293e057	550	if (image_load_tga(&rgb888_logo, inputfile) < 0) {
6007f325 WD	551	printf ("input file not found!\n");
	552	exit (1);
	553	}
fe8c2806	554
7293e057	555	/* Convert, save, and free the image */
fe8c2806	556
7293e057	557	if (!use_rgb888 && !use_rgb565) {
edfed1d9	558	printf ("C");
7293e057 MH	559	image_rgb_to_yuyv(&rgb888_logo, &yuyv_logo);
	560
	561	printf("S");
	562	image_save_header(&yuyv_logo, outputfile, varname);
	563	image_free(&yuyv_logo);
	564	} else if (use_rgb565) {
	565	printf("C");
	566	image_rgb888_to_rgb565(&rgb888_logo, &rgb565_logo);
	567
	568	printf("S");
	569	image_save_header(&rgb565_logo, outputfile, varname);
	570	image_free(&rgb565_logo);
	571	} else {
	572	printf("S");
	573	image_save_header(&rgb888_logo, outputfile, varname);
edfed1d9	574	}
fe8c2806	575
6007f325	576	/* Free original image and copy */
fe8c2806	577
7293e057	578	image_free(&rgb888_logo);
fe8c2806	579
6007f325	580	printf ("\n");
fe8c2806	581
6007f325	582	return 0;
fe8c2806	583	}