diff options
Diffstat (limited to 'nuttx/tools/bdf-converter.c')
| -rw-r--r-- | nuttx/tools/bdf-converter.c | 193 |
1 files changed, 177 insertions, 16 deletions
diff --git a/nuttx/tools/bdf-converter.c b/nuttx/tools/bdf-converter.c index 94d00b8ee..773922428 100644 --- a/nuttx/tools/bdf-converter.c +++ b/nuttx/tools/bdf-converter.c @@ -33,6 +33,12 @@ * ****************************************************************************/ +/* + * Based one the "Glyph Bitmap Distribution Format (BDF) Specification", + * Version 2.2, by Adobe Systems Incorporated. + * + */ + /**************************************************************************** * Included Files ****************************************************************************/ @@ -70,15 +76,15 @@ typedef struct glyphinfo_s { - char *name; /* Name for they glyph */ - int encoding; /* The Adobe Standard Encoding value */ - int bb_w; /* The width of the black pixels in x */ - int bb_h; /* The height of the black pixels in y */ - int bb_x_off; /* X displacement of the lower left corner - * of the bitmap from origin 0 */ - int bb_y_off; /* Y displacement of the lower left corner - * of the bitmap from origin 0 */ - uint32_t *bitmap; /* Hexadecimal data for the */ + char *name; /* Name for they glyph */ + int encoding; /* The Adobe Standard Encoding value */ + int bb_w; /* The width of the black pixels in x */ + int bb_h; /* The height of the black pixels in y */ + int bb_x_off; /* X displacement of the lower left corner + * of the bitmap from origin 0 */ + int bb_y_off; /* Y displacement of the lower left corner + * of the bitmap from origin 0 */ + uint32_t *bitmap; /* Hexadecimal data for the character bitmap */ } glyphinfo_t; /* This structures provides the metrics for one glyph */ @@ -97,6 +103,17 @@ typedef struct nx_fontmetric_s * Private Functions ****************************************************************************/ +/**************************************************************************** + * Name: trimLine + * + * Description: + * Trims the line removing space characters at the front and at the end + * of the line. + * + * Input Parameters: + * line - The line to trim + * + ****************************************************************************/ static void trimLine(char *line) { char *str; @@ -143,6 +160,17 @@ static void bdf_parseintline(char *line, unsigned int count, int *info) } } +/**************************************************************************** + * Name: bdf_printflyphinfo + * + * Description: + * Prints the information available for a glyph. + * + * Input Parameters: + * ginfo - A glyphinfo_t struct with the glyph's information. + * + ****************************************************************************/ +#ifdef DBG static void bdf_printglyphinfo(const glyphinfo_t *ginfo) { printf("NAME = %s\n", ginfo->name); @@ -157,7 +185,20 @@ static void bdf_printglyphinfo(const glyphinfo_t *ginfo) printf("BITMAP[%d] = %x\n", i, ginfo->bitmap[i]); } } +#endif /* DBG */ +/**************************************************************************** + * Name: bdf_printnxmetricinfo + * + * Description: + * Prints the information available for a glyph's metric in the NX + * graphics system. + * + * Input Parameters: + * info - A nx_fontmetric_t struct with the glyph's information. + * + ****************************************************************************/ +#ifdef DBG static void bdf_printnxmetricinfo(const nx_fontmetric_t *info) { printf("STRIDE = %d\n", info->stride); @@ -166,7 +207,29 @@ static void bdf_printnxmetricinfo(const nx_fontmetric_t *info) printf("XOFFSET = %d\n", info->xoffset); printf("YOFFSET = %d\n", info->yoffset); } +#endif /* DBG */ +/**************************************************************************** + * Name: bdf_getglyphinfo + * + * Description: + * Obtains the information for an individual glyph. The BDF properties + * taken into account are: + * - ENCODING + * - BBX + * BDF properties ignored: + * - SWIDTH + * - DWIDTH + * - SWIDTH1 + * - DWIDTH1 + * - VVECTOR + * + * Input Parameters: + * file - The input file stream pointing to the first line of the + * glyph's information (right after STARTCHAR). + * ginfo - A glyphinfo_t struct to fill with the glyph's information. + * + ****************************************************************************/ static void bdf_getglyphinfo(FILE *file, glyphinfo_t *ginfo) { char line[BDF_MAX_LINE_LENGTH]; @@ -215,6 +278,18 @@ static void bdf_getglyphinfo(FILE *file, glyphinfo_t *ginfo) } } +/**************************************************************************** + * Name: bdf_getglyphbitmap + * + * Description: + * Obtains the character bitmap information for an individual glyph. + * + * Input Parameters: + * file - The input file stream pointing to the first line of the + * glyph's bitmap (right after BITMAP). + * ginfo - A glyphinfo_t struct to fill with the glyph's bitmap. + * + ****************************************************************************/ static void bdf_getglyphbitmap(FILE *file, glyphinfo_t *ginfo) { char line[BDF_MAX_LINE_LENGTH]; @@ -252,11 +327,37 @@ static void bdf_getglyphbitmap(FILE *file, glyphinfo_t *ginfo) } } +/**************************************************************************** + * Name: bdf_getstride + * + * Description: + * Obtains the stride for an individual glyph. The stride is the width + * of one glyph's bitmap row in bytes. + * + * Input Parameters: + * ginfo - A glyphinfo_t struct with the glyph's information. + * stride - A pointer to memory provided by the caller in which to + * return the stride. + * + ****************************************************************************/ static void bdf_getstride(glyphinfo_t *ginfo, uint32_t *stride) { - *stride = (ginfo->bb_w % 8 == 0) ? ginfo->bb_w / 8 : ginfo->bb_w / 8 + 1 ; + *stride = (ginfo->bb_w % 8 == 0) ? ginfo->bb_w / 8 : ginfo->bb_w / 8 + 1; } +/**************************************************************************** + * Name: bdf_printoutput + * + * Description: + * Prints to the output stream the information of an individual glyph in + * the NuttX font format. + * + * Input Parameters: + * out - The output stream. + * ginfo - A glyphinfo_t struct with the glyph's information. + * nxmetric - A nx_fontmetric_t struct with the glyph's information. + * + ****************************************************************************/ static void bdf_printoutput(FILE *out, glyphinfo_t *ginfo, nx_fontmetric_t *nxmetric) @@ -310,22 +411,57 @@ int main(int argc, char **argv) char line[BDF_MAX_LINE_LENGTH]; char lineCopy[BDF_MAX_LINE_LENGTH]; char *str, *token, *saveptr1; + char *input, *output; /* FONTBOUNDINGBOX properties*/ - int fbb_x, fbb_y, fbb_x_off, fbb_y_off; - file = fopen("8x13.bdf", "r"); - out = fopen("out.txt", "w"); + int fbb_x = 0; + int fbb_y = 0; + int fbb_x_off = 0; + int fbb_y_off = 0; + + /* Input BDF file */ + + input = argv[1]; + + if (input == NULL) + { + printf("%s: no input file\n", argv[0]); + exit(0); + } + + file = fopen(input, "r"); if (file == NULL) { - perror("Error opening file"); + printf("%s: error opening file %s\n", argv[0], input); + exit(0); + } + else + { +#ifdef VERBOSE + printf("Opening \"%s\"\n", input); +#endif /* VERBOSE */ + } + + /* Output file */ + output = "out.txt"; + out = fopen(output, "w"); + + if (out == NULL) + { + printf("%s: error opening file %s\n", argv[0], output); + fclose(file); + exit(0); } else { while (fgets(line, BDF_MAX_LINE_LENGTH, file) != NULL) { + +#ifdef DBG printf("--\n"); +#endif /* DBG */ // Save a copy of the line @@ -349,6 +485,13 @@ int main(int argc, char **argv) fbb_y = fbbinfo[1]; fbb_x_off = fbbinfo[2]; fbb_y_off = fbbinfo[3]; + + /* Print FONTBOUNDINGBOX information */ + + fprintf(out, "/* Maximum height and width of any"); + fprintf(out, " glyph in the set */\n\n"); + fprintf(out, "#define NXFONT_MAXHEIGHT %d\n", fbb_y); + fprintf(out, "#define NXFONT_MAXWIDTH %d\n\n", fbb_x); } /* STARTCHAR - Individual glyph information */ @@ -360,12 +503,20 @@ int main(int argc, char **argv) /* Glyph name */ ginfo.name = (char *)strtok_r(NULL, " ", &saveptr1); + +#ifdef VERBOSE + printf("Processing glyph: %s\n", ginfo.name); +#endif /* VERBOSE */ /* Glyph information: * ENCODING * BBX */ - + ginfo.encoding = 0; + ginfo.bb_w = 0; + ginfo.bb_h = 0; + ginfo.bb_x_off = 0; + ginfo.bb_y_off = 0; bdf_getglyphinfo(file, &ginfo); /* Glyph bitmap */ @@ -373,7 +524,9 @@ int main(int argc, char **argv) ginfo.bitmap = malloc(sizeof(uint32_t) * ginfo.bb_h); bdf_getglyphbitmap(file, &ginfo); +#ifdef DBG bdf_printglyphinfo(&ginfo); +#endif /* DBG */ /* Convert to nxfonts */ @@ -385,8 +538,11 @@ int main(int argc, char **argv) nxmetric.height = ginfo.bb_h; nxmetric.xoffset = (-fbb_x_off) + ginfo.bb_x_off; nxmetric.yoffset = fbb_y + fbb_y_off - ginfo.bb_y_off; + +#ifdef DBG bdf_printnxmetricinfo(&nxmetric); - +#endif /* DBG */ + bdf_printoutput(out, &ginfo, &nxmetric); /* Free memory */ @@ -401,6 +557,11 @@ int main(int argc, char **argv) } fclose(file); fclose(out); + + /* The End */ + + printf("Generated \"%s\"\n", output); + } return EXIT_SUCCESS; |