diff options
Diffstat (limited to 'tools/easylogo/easylogo.c')
| -rwxr-xr-x | tools/easylogo/easylogo.c | 422 |
1 files changed, 422 insertions, 0 deletions
diff --git a/tools/easylogo/easylogo.c b/tools/easylogo/easylogo.c new file mode 100755 index 0000000..cbec70b --- /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 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"); + +/* 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 ; +} |