diff options
Diffstat (limited to 'read.c')
| -rw-r--r-- | read.c | 62 |
1 files changed, 58 insertions, 4 deletions
@@ -27,6 +27,7 @@ THE SOFTWARE. #include <ft2build.h> #include FT_FREETYPE_H +#include FT_MODULE_H #include FT_BDF_H #include "X11/Xos.h" #include "fonttosfnt.h" @@ -36,6 +37,8 @@ THE SOFTWARE. #define CEIL2(x, y) (FLOOR2((x) + (y) - 1, (y))) #define FT_Pos_DOWN(x) (FLOOR2((x),64)) #define FT_Pos_UP(x) (CEIL2((x), 64)) +#define MIN(x, y) (((x) <= (y)) ? (x) : (y)) +#define STREAM_FILE(stream) ((FILE*)stream->descriptor.pointer) static int ft_inited = 0; static FT_Library ft_library; @@ -55,11 +58,45 @@ FT_Ensure_Inited(void) return 0; } +static unsigned long +forwardRead(FT_Stream stream, unsigned long offset, unsigned char *buffer, + unsigned long count) { + unsigned char skip_buffer[BUFSIZ]; + unsigned long skip_count; + FILE *file = STREAM_FILE(stream); + + /* We may be asked to skip forward, but by not doing so we increase our + chance of survival. */ + if(count == 0) + return ferror(file) == 0 ? 0 : 1; + + if(offset < stream->pos) { + fprintf(stderr, "Cannot move backward in input stream.\n"); + return 0; + } + while((skip_count = MIN(BUFSIZ, offset - stream->pos))) { + if(fread(skip_buffer, sizeof(*skip_buffer), skip_count, file) < + skip_count) + return 0; + stream->pos += sizeof(*skip_buffer) * skip_count; + } + + return (unsigned long)fread(buffer, sizeof(*buffer), count, file); +} + +static void +streamClose(FT_Stream stream) { + fclose(STREAM_FILE(stream)); + stream->descriptor.pointer = NULL; + stream->size = 0; +} + int readFile(char *filename, FontPtr font) { int j, k, index; int rc; + FT_Open_Args input = { 0 }; FT_Face face; StrikePtr strike; BitmapPtr bitmap; @@ -74,9 +111,25 @@ readFile(char *filename, FontPtr font) if(rc != 0) return rc; - rc = FT_New_Face(ft_library, filename, 0, &face); + if(filename != NULL) { + input.pathname = filename; + input.flags = FT_OPEN_PATHNAME; + } else { + input.flags = FT_OPEN_STREAM | FT_OPEN_DRIVER; + input.driver = FT_Get_Module(ft_library, "bdf"); + input.stream = calloc(1, sizeof(FT_StreamRec)); + if(input.stream == NULL) + return -1; + + input.stream->size = 0x7FFFFFFF; + input.stream->descriptor.pointer = stdin; + input.stream->read = forwardRead; + input.stream->close = streamClose; + } + rc = FT_Open_Face(ft_library, &input, 0, &face); if(rc != 0) { - fprintf(stderr, "Couldn't open face %s.\n", filename); + fprintf(stderr, "Couldn't open face %s.\n", + filename ? filename : "<stdin>"); return -1; } @@ -110,8 +163,8 @@ readFile(char *filename, FontPtr font) if(verbose_flag) { fprintf(stderr, "%s %s %s: %d sizes%s\n", - filename, face->family_name, face->style_name, - face->num_fixed_sizes, + filename ? filename : "<stdin>", + face->family_name, face->style_name, face->num_fixed_sizes, symbol ? " (symbol)" : ""); } @@ -309,6 +362,7 @@ readFile(char *filename, FontPtr font) } FT_Done_Face(face); + free(input.stream); j = 0; for(int i = 0; i < FONT_CODES; i++) { |