Initial revision

1 files changed, 422 insertions, 0 deletions

diff --git a/tools/easylogo/easylogo.c b/tools/easylogo/easylogo.c
new file mode 100644
index 0000000..548e3c3
--- /dev/null
+++ b/tools/easylogo/easylogo.c
@@ -0,0 +1,422 @@
+/*
+** Easylogo TGA->header converter
+** ==============================
+** (C) 2000 by Paolo Scaffardi (arsenio@tin.it)
+** AIRVENT SAM s.p.a - RIMINI(ITALY)
+**
+** This is still under construction!
+*/
+
+#include <stdio.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 {
+	unsigned char	*data,
+					*palette ;
+	int				width,
+					height,
+					pixels,
+					bpp,
+					pixel_size,
+					size,
+					palette_size,
+					yuyv;
+} image_t ;
+
+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");
+    }
+}
+
+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);
+
+    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 		= malloc(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 = malloc(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;
+}
+
+int image_free (image_t *image)
+{
+    if(image->data != NULL)
+		free(image->data);
+
+    if(image->palette != NULL)
+		free(image->palette);
+
+	return 0;
+}
+
+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	= malloc(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_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 informations */
+	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");
+
+/*	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[DEF_%s_SIZE] = {\n", def_name, 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
+
+int main (int argc, char *argv[])
+{
+    char
+	inputfile[DEF_FILELEN],
+	outputfile[DEF_FILELEN],
+	varname[DEF_FILELEN];
+
+    image_t 		rgb_logo, yuyv_logo ;
+
+    switch (argc){
+    case 2:
+    case 3:
+    case 4:
+        strcpy (inputfile, 	argv[1]);
+
+	if (argc > 2)
+	    strcpy (varname, 	argv[2]);
+	else
+	{
+	    int pos = strchr(inputfile, '.');
+
+	    if (pos >= 0)
+	    {
+		strncpy (varname, inputfile, pos);
+		varname[pos] = 0 ;
+	    }
+	}
+
+	if (argc > 3)
+	    strcpy (outputfile, argv[3]);
+	else
+	{
+	    int pos = strchr (varname, '.');
+
+	    if (pos > 0)
+	    {
+		char app[DEF_FILELEN] ;
+
+		strncpy(app, varname, pos);
+		sprintf(outputfile, "%s.h", app);
+	    }
+	}
+        break;
+
+    default:
+        printf("EasyLogo 1.0 (C) 2000 by Paolo Scaffardi\n\n");
+
+        printf("Syntax:	easylogo inputfile [outputvar {outputfile}] \n");
+        printf("\n");
+        printf("Where:	'inputfile' 	is the TGA image to load\n");
+	printf("      	'outputvar' 	is the variable name to create\n");
+	printf("       	'outputfile' 	is the output header file (default is 'inputfile.h')\n");
+
+	return -1 ;
+    }
+
+    printf("Doing '%s' (%s) from '%s'...",
+	outputfile, varname, inputfile);
+
+/* Import TGA logo */
+
+    printf("L");
+    if (image_load_tga (&rgb_logo, inputfile)<0)
+    {
+	printf("input file not found!\n");
+    	exit(1);
+    }
+
+/* Convert it to YUYV format */
+
+    printf("C");
+    image_rgb_to_yuyv (&rgb_logo, &yuyv_logo) ;
+
+/* Save it into a header format */
+
+    printf("S");
+    image_save_header (&yuyv_logo, outputfile, varname) ;
+
+/* Free original image and copy */
+
+    image_free (&rgb_logo);
+    image_free (&yuyv_logo);
+
+    printf("\n");
+
+    return 0 ;
+}