-#include "image.h"
+#include "imager.h"
+#include "imrender.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
-
-
-
+#ifdef HAVE_LIBT1
+#endif
/*
#ifdef HAVE_LIBT1
fontnum = i_t1_new(path_to_pfb, path_to_afm);
- i_t1_bbox(fontnum, points, "foo", 3, int cords[6]);
+ i_t1_bbox(fontnum, points, "foo", 3, i_img_dim cords[BOUNDING_BOX_COUNT]);
rc = i_t1_destroy(fontnum);
#endif
#ifdef HAVE_LIBTT
handle = i_tt_new(path_to_ttf);
- rc = i_tt_bbox(handle, points, "foo", 3, int cords[6]);
+ rc = i_tt_bbox(handle, points, "foo", 3, int cords[6], utf8);
i_tt_destroy(handle);
// and much more
*/
+/* Truetype font support */
+#ifdef HAVE_LIBTT
+/* These are enabled by default when configuring Freetype 1.x
+ I haven't a clue how to reliably detect it at compile time.
-
-
-
-
-
-/*
-=item i_init_fonts()
-
-Initialize font rendering libraries if they are avaliable.
-
-=cut
+ We need a compilation probe in Makefile.PL
*/
+#define FTXPOST 1
+#define FTXERR18 1
-undef_int
-i_init_fonts() {
- mm_log((1,"Initializing fonts\n"));
+#include <freetype.h>
+#define TT_CHC 5
-#ifdef HAVE_LIBT1
- init_t1();
-#endif
-
-#ifdef HAVE_LIBTT
- init_tt();
+#ifdef FTXPOST
+#include <ftxpost.h>
#endif
-#ifdef HAVE_FT2
- if (!i_ft2_init())
- return 0;
+#ifdef FTXERR18
+#include <ftxerr18.h>
#endif
- return(1); /* FIXME: Always true - check the return values of the init_t1 and init_tt functions */
-}
-
-
-
-
-#ifdef HAVE_LIBT1
-
-
-
-/*
-=item i_init_t1()
-
-Initializes the t1lib font rendering engine.
-
-=cut
-*/
-
-undef_int
-init_t1() {
- mm_log((1,"init_t1()\n"));
- if ((T1_InitLib(LOGFILE|IGNORE_CONFIGFILE|IGNORE_FONTDATABASE) == NULL)){
- mm_log((1,"Initialization of t1lib failed\n"));
- return(1);
- }
- T1_SetLogLevel(T1LOG_DEBUG);
- i_t1_set_aa(1); /* Default Antialias value */
- return(0);
-}
-
-
-/*
-=item i_close_t1()
-
-Shuts the t1lib font rendering engine down.
-
- This it seems that this function is never used.
-
-=cut
-*/
-
-void
-i_close_t1(void) {
- T1_CloseLib();
-}
-
-
-/*
-=item i_t1_new(pfb, afm)
-
-Loads the fonts with the given filenames, returns its font id
-
- pfb - path to pfb file for font
- afm - path to afm file for font
-
-=cut
-*/
-
-int
-i_t1_new(char *pfb,char *afm) {
- int font_id;
- mm_log((1,"i_t1_new(pfb %s,afm %s)\n",pfb,(afm?afm:"NULL")));
- font_id = T1_AddFont(pfb);
- if (font_id<0) {
- mm_log((1,"i_t1_new: Failed to load pfb file '%s' - return code %d.\n",pfb,font_id));
- return font_id;
- }
-
- if (afm != NULL) {
- mm_log((1,"i_t1_new: requesting afm file '%s'.\n",afm));
- if (T1_SetAfmFileName(font_id,afm)<0) mm_log((1,"i_t1_new: afm loading of '%s' failed.\n",afm));
- }
- return font_id;
-}
-
-/*
-=item i_t1_destroy(font_id)
-
-Frees resources for a t1 font with given font id.
-
- font_id - number of the font to free
-
-=cut
-*/
-
-int
-i_t1_destroy(int font_id) {
- mm_log((1,"i_t1_destroy(font_id %d)\n",font_id));
- return T1_DeleteFont(font_id);
-}
-
-
-/*
-=item i_t1_set_aa(st)
-
-Sets the antialiasing level of the t1 library.
-
- st - 0 = NONE, 1 = LOW, 2 = HIGH.
-
-=cut
-*/
-
-void
-i_t1_set_aa(int st) {
- int i;
- unsigned long cst[17];
- switch(st) {
- case 0:
- T1_AASetBitsPerPixel( 8 );
- T1_AASetLevel( T1_AA_NONE );
- T1_AANSetGrayValues( 0, 255 );
- mm_log((1,"setting T1 antialias to none\n"));
- break;
- case 1:
- T1_AASetBitsPerPixel( 8 );
- T1_AASetLevel( T1_AA_LOW );
- T1_AASetGrayValues( 0,65,127,191,255 );
- mm_log((1,"setting T1 antialias to low\n"));
- break;
- case 2:
- T1_AASetBitsPerPixel(8);
- T1_AASetLevel(T1_AA_HIGH);
- for(i=0;i<17;i++) cst[i]=(i*255)/16;
- T1_AAHSetGrayValues( cst );
- mm_log((1,"setting T1 antialias to high\n"));
- }
-}
-
-
-/*
-=item i_t1_cp(im, xb, yb, channel, fontnum, points, str, len, align)
-
-Interface to text rendering into a single channel in an image
-
- im pointer to image structure
- xb x coordinate of start of string
- yb y coordinate of start of string ( see align )
- channel - destination channel
- fontnum - t1 library font id
- points - number of points in fontheight
- str - string to render
- len - string length
- align - (0 - top of font glyph | 1 - baseline )
-
-=cut
-*/
-
-undef_int
-i_t1_cp(i_img *im,int xb,int yb,int channel,int fontnum,float points,char* str,int len,int align) {
- GLYPH *glyph;
- int xsize,ysize,x,y;
- i_color val;
-
- unsigned int ch_mask_store;
-
- if (im == NULL) { mm_log((1,"i_t1_cp: Null image in input\n")); return(0); }
-
- glyph=T1_AASetString( fontnum, str, len, 0, T1_KERNING, points, NULL);
- if (glyph == NULL)
- return 0;
-
- mm_log((1,"metrics: ascent: %d descent: %d\n",glyph->metrics.ascent,glyph->metrics.descent));
- mm_log((1," leftSideBearing: %d rightSideBearing: %d\n",glyph->metrics.leftSideBearing,glyph->metrics.rightSideBearing));
- mm_log((1," advanceX: %d advanceY: %d\n",glyph->metrics.advanceX,glyph->metrics.advanceY));
- mm_log((1,"bpp: %d\n",glyph->bpp));
-
- xsize=glyph->metrics.rightSideBearing-glyph->metrics.leftSideBearing;
- ysize=glyph->metrics.ascent-glyph->metrics.descent;
-
- mm_log((1,"width: %d height: %d\n",xsize,ysize));
-
- ch_mask_store=im->ch_mask;
- im->ch_mask=1<<channel;
-
- if (align==1) { xb+=glyph->metrics.leftSideBearing; yb-=glyph->metrics.ascent; }
-
- for(y=0;y<ysize;y++) for(x=0;x<xsize;x++) {
- val.channel[channel]=glyph->bits[y*xsize+x];
- i_ppix(im,x+xb,y+yb,&val);
- }
-
- im->ch_mask=ch_mask_store;
- return 1;
-}
-
-
-/*
-=item i_t1_bbox(handle, fontnum, points, str, len, cords)
-
-function to get a strings bounding box given the font id and sizes
-
- handle - pointer to font handle
- fontnum - t1 library font id
- points - number of points in fontheight
- str - string to measure
- len - string length
- cords - the bounding box (modified in place)
-
-=cut
-*/
-
-void
-i_t1_bbox(int fontnum,float points,char *str,int len,int cords[6]) {
- BBox bbox;
- BBox gbbox;
-
- mm_log((1,"i_t1_bbox(fontnum %d,points %.2f,str '%.*s', len %d)\n",fontnum,points,len,str,len));
- T1_LoadFont(fontnum); /* FIXME: Here a return code is ignored - haw haw haw */
- bbox = T1_GetStringBBox(fontnum,str,len,0,T1_KERNING);
- gbbox = T1_GetFontBBox(fontnum);
-
- mm_log((1,"bbox: (%d,%d,%d,%d)\n",
- (int)(bbox.llx*points/1000),
- (int)(gbbox.lly*points/1000),
- (int)(bbox.urx*points/1000),
- (int)(gbbox.ury*points/1000),
- (int)(bbox.lly*points/1000),
- (int)(bbox.ury*points/1000) ));
-
-
- cords[0]=((float)bbox.llx*points)/1000;
- cords[2]=((float)bbox.urx*points)/1000;
-
- cords[1]=((float)gbbox.lly*points)/1000;
- cords[3]=((float)gbbox.ury*points)/1000;
-
- cords[4]=((float)bbox.lly*points)/1000;
- cords[5]=((float)bbox.ury*points)/1000;
-}
-
-
-/*
-=item i_t1_text(im, xb, yb, cl, fontnum, points, str, len, align)
-
-Interface to text rendering in a single color onto an image
-
- im - pointer to image structure
- xb - x coordinate of start of string
- yb - y coordinate of start of string ( see align )
- cl - color to draw the text in
- fontnum - t1 library font id
- points - number of points in fontheight
- str - char pointer to string to render
- len - string length
- align - (0 - top of font glyph | 1 - baseline )
-
-=cut
-*/
-
-undef_int
-i_t1_text(i_img *im,int xb,int yb,i_color *cl,int fontnum,float points,char* str,int len,int align) {
- GLYPH *glyph;
- int xsize,ysize,x,y,ch;
- i_color val;
- unsigned char c,i;
-
- if (im == NULL) { mm_log((1,"i_t1_cp: Null image in input\n")); return(0); }
-
- glyph=T1_AASetString( fontnum, str, len, 0, T1_KERNING, points, NULL);
- if (glyph == NULL)
- return 0;
-
- mm_log((1,"metrics: ascent: %d descent: %d\n",glyph->metrics.ascent,glyph->metrics.descent));
- mm_log((1," leftSideBearing: %d rightSideBearing: %d\n",glyph->metrics.leftSideBearing,glyph->metrics.rightSideBearing));
- mm_log((1," advanceX: %d advanceY: %d\n",glyph->metrics.advanceX,glyph->metrics.advanceY));
- mm_log((1,"bpp: %d\n",glyph->bpp));
-
- xsize=glyph->metrics.rightSideBearing-glyph->metrics.leftSideBearing;
- ysize=glyph->metrics.ascent-glyph->metrics.descent;
-
- mm_log((1,"width: %d height: %d\n",xsize,ysize));
-
- if (align==1) { xb+=glyph->metrics.leftSideBearing; yb-=glyph->metrics.ascent; }
-
- for(y=0;y<ysize;y++) for(x=0;x<xsize;x++) {
- c=glyph->bits[y*xsize+x];
- i=255-c;
- i_gpix(im,x+xb,y+yb,&val);
- for(ch=0;ch<im->channels;ch++) val.channel[ch]=(c*cl->channel[ch]+i*val.channel[ch])/255;
- i_ppix(im,x+xb,y+yb,&val);
- }
- return 1;
-}
-
-
-#endif /* HAVE_LIBT1 */
-
-
-
-
-
-
-
-
-
-
-/* Truetype font support */
-
-#ifdef HAVE_LIBTT
+/* some versions of FT1.x don't seem to define this - it's font defined
+ so it won't change */
+#ifndef TT_MS_LANGID_ENGLISH_GENERAL
+#define TT_MS_LANGID_ENGLISH_GENERAL 0x0409
+#endif
+/* convert a code point into an index in the glyph cache */
+#define TT_HASH(x) ((x) & 0xFF)
+
+typedef struct i_glyph_entry_ {
+ TT_Glyph glyph;
+ unsigned long ch;
+} i_tt_glyph_entry;
+
+#define TT_NOCHAR (~0UL)
+
+struct TT_Instancehandle_ {
+ TT_Instance instance;
+ TT_Instance_Metrics imetrics;
+ TT_Glyph_Metrics gmetrics[256];
+ i_tt_glyph_entry glyphs[256];
+ int smooth;
+ int order;
+ i_img_dim ptsize;
+};
+
+typedef struct TT_Instancehandle_ TT_Instancehandle;
+
+struct TT_Fonthandle_ {
+ TT_Face face;
+ TT_Face_Properties properties;
+ TT_Instancehandle instanceh[TT_CHC];
+ TT_CharMap char_map;
+#ifdef FTXPOST
+ int loaded_names;
+ TT_Error load_cond;
+#endif
+};
/* Defines */
#define USTRCT(x) ((x).z)
#define TT_VALID( handle ) ( ( handle ).z != NULL )
+static void i_tt_push_error(TT_Error rc);
/* Prototypes */
-static int i_tt_get_instance( TT_Fonthandle *handle, int points, int smooth );
-static void i_tt_init_raster_map( TT_Raster_Map* bit, int width, int height, int smooth );
+static int i_tt_get_instance( TT_Fonthandle *handle, i_img_dim points, int smooth );
+static void i_tt_init_raster_map( TT_Raster_Map* bit, i_img_dim width, i_img_dim height, int smooth );
static void i_tt_done_raster_map( TT_Raster_Map *bit );
static void i_tt_clear_raster_map( TT_Raster_Map* bit );
-static void i_tt_blit_or( TT_Raster_Map *dst, TT_Raster_Map *src,int x_off, int y_off );
-static int i_tt_get_glyph( TT_Fonthandle *handle, int inst, unsigned char j );
-static void i_tt_render_glyph( TT_Glyph glyph, TT_Glyph_Metrics* gmetrics, TT_Raster_Map *bit, TT_Raster_Map *small_bit, int x_off, int y_off, int smooth );
-static void i_tt_render_all_glyphs( TT_Fonthandle *handle, int inst, TT_Raster_Map *bit, TT_Raster_Map *small_bit, int cords[6], char* txt, int len, int smooth );
-static void i_tt_dump_raster_map2( i_img* im, TT_Raster_Map* bit, int xb, int yb, i_color *cl, int smooth );
-static void i_tt_dump_raster_map_channel( i_img* im, TT_Raster_Map* bit, int xb, int yb, int channel, int smooth );
-static int i_tt_rasterize( TT_Fonthandle *handle, TT_Raster_Map *bit, int cords[6], float points, char* txt, int len, int smooth );
-static undef_int i_tt_bbox_inst( TT_Fonthandle *handle, int inst ,const char *txt, int len, int cords[6] );
+static void i_tt_blit_or( TT_Raster_Map *dst, TT_Raster_Map *src,i_img_dim x_off, i_img_dim y_off );
+static int i_tt_get_glyph( TT_Fonthandle *handle, int inst, unsigned long j );
+static void
+i_tt_render_glyph( TT_Glyph glyph, TT_Glyph_Metrics* gmetrics,
+ TT_Raster_Map *bit, TT_Raster_Map *small_bit,
+ i_img_dim x_off, i_img_dim y_off, int smooth );
+static int
+i_tt_render_all_glyphs( TT_Fonthandle *handle, int inst, TT_Raster_Map *bit,
+ TT_Raster_Map *small_bit, i_img_dim cords[6],
+ char const* txt, size_t len, int smooth, int utf8 );
+static void i_tt_dump_raster_map2( i_img* im, TT_Raster_Map* bit, i_img_dim xb, i_img_dim yb, const i_color *cl, int smooth );
+static void i_tt_dump_raster_map_channel( i_img* im, TT_Raster_Map* bit, i_img_dim xb, i_img_dim yb, int channel, int smooth );
+static int
+i_tt_rasterize( TT_Fonthandle *handle, TT_Raster_Map *bit, i_img_dim cords[6],
+ double points, char const* txt, size_t len, int smooth, int utf8 );
+static undef_int i_tt_bbox_inst( TT_Fonthandle *handle, int inst ,const char *txt, size_t len, i_img_dim cords[6], int utf8 );
/* static globals needed */
+static int TT_initialized = 0;
static TT_Engine engine;
static int LTT_dpi = 72; /* FIXME: this ought to be a part of the call interface */
static int LTT_hinted = 1; /* FIXME: this too */
*/
undef_int
-init_tt() {
+i_init_tt(void) {
TT_Error error;
+ TT_Byte palette[] = { 0, 64, 127, 191, 255 };
+
+ i_clear_error();
+
mm_log((1,"init_tt()\n"));
error = TT_Init_FreeType( &engine );
if ( error ){
- mm_log((1,"Initialization of freetype failed, code = 0x%x\n",error));
+ mm_log((1,"Initialization of freetype failed, code = 0x%x\n",
+ (unsigned)error));
+ i_tt_push_error(error);
+ i_push_error(0, "Could not initialize freetype 1.x");
return(1);
}
+
+#ifdef FTXPOST
+ error = TT_Init_Post_Extension( engine );
+ if (error) {
+ mm_log((1, "Initialization of Post extension failed = 0x%x\n",
+ (unsigned)error));
+
+ i_tt_push_error(error);
+ i_push_error(0, "Could not initialize FT 1.x POST extension");
+ return 1;
+ }
+#endif
+
+ error = TT_Set_Raster_Gray_Palette(engine, palette);
+ if (error) {
+ mm_log((1, "Initialization of gray levels failed = 0x%x\n",
+ (unsigned)error));
+ i_tt_push_error(error);
+ i_push_error(0, "Could not initialize FT 1.x POST extension");
+ return 1;
+ }
+
+ TT_initialized = 1;
+
return(0);
}
static
int
-i_tt_get_instance( TT_Fonthandle *handle, int points, int smooth ) {
+i_tt_get_instance( TT_Fonthandle *handle, i_img_dim points, int smooth ) {
int i,idx;
TT_Error error;
- mm_log((1,"i_tt_get_instance(handle 0x%X, points %d, smooth %d)\n",handle,points,smooth));
+ mm_log((1,"i_tt_get_instance(handle %p, points %" i_DF ", smooth %d)\n",
+ handle, i_DFc(points), smooth));
if (smooth == -1) { /* Smooth doesn't matter for this search */
- for(i=0;i<TT_CHC;i++) if (handle->instanceh[i].ptsize==points) {
- mm_log((1,"i_tt_get_instance: in cache - (non selective smoothing search) returning %d\n",i));
- return i;
+ for(i=0;i<TT_CHC;i++) {
+ if (handle->instanceh[i].ptsize==points) {
+ mm_log((1,"i_tt_get_instance: in cache - (non selective smoothing search) returning %d\n",i));
+ return i;
+ }
}
smooth=1; /* We will be adding a font - add it as smooth then */
} else { /* Smooth doesn't matter for this search */
- for(i=0;i<TT_CHC;i++) if (handle->instanceh[i].ptsize==points && handle->instanceh[i].smooth==smooth) {
- mm_log((1,"i_tt_get_instance: in cache returning %d\n",i));
- return i;
+ for(i=0;i<TT_CHC;i++) {
+ if (handle->instanceh[i].ptsize == points
+ && handle->instanceh[i].smooth == smooth) {
+ mm_log((1,"i_tt_get_instance: in cache returning %d\n",i));
+ return i;
+ }
}
}
/* Found the instance in the cache - return the cache index */
- for(idx=0;idx<TT_CHC;idx++) if (!(handle->instanceh[idx].order)) break; /* find the lru item */
+ for(idx=0;idx<TT_CHC;idx++) {
+ if (!(handle->instanceh[idx].order)) break; /* find the lru item */
+ }
mm_log((1,"i_tt_get_instance: lru item is %d\n",idx));
- mm_log((1,"i_tt_get_instance: lru pointer 0x%X\n",USTRCT(handle->instanceh[idx].instance) ));
+ mm_log((1,"i_tt_get_instance: lru pointer %p\n",
+ USTRCT(handle->instanceh[idx].instance) ));
if ( USTRCT(handle->instanceh[idx].instance) ) {
mm_log((1,"i_tt_get_instance: freeing lru item from cache %d\n",idx));
- TT_Done_Instance( handle->instanceh[idx].instance ); /* Free instance if needed */
+
+ /* Free cached glyphs */
+ for(i=0;i<256;i++)
+ if ( USTRCT(handle->instanceh[idx].glyphs[i].glyph) )
+ TT_Done_Glyph( handle->instanceh[idx].glyphs[i].glyph );
+
+ for(i=0;i<256;i++) {
+ handle->instanceh[idx].glyphs[i].ch = TT_NOCHAR;
+ USTRCT(handle->instanceh[idx].glyphs[i].glyph)=NULL;
+ }
+
+ /* Free instance if needed */
+ TT_Done_Instance( handle->instanceh[idx].instance );
}
/* create and initialize instance */
( error = TT_Set_Instance_CharSize( handle->instanceh[idx].instance, points*64 ) ) );
if ( error ) {
- mm_log((1, "Could not create and initialize instance: error 0x%x.\n",error ));
+ mm_log((1, "Could not create and initialize instance: error %x.\n",
+ (unsigned)error ));
return -1;
}
handle->instanceh[idx].smooth=smooth;
TT_Get_Instance_Metrics( handle->instanceh[idx].instance, &(handle->instanceh[idx].imetrics) );
- /* Zero the memory for the glyph storage so they are not thought as cached if they haven't been cached
- since this new font was loaded */
+ /* Zero the memory for the glyph storage so they are not thought as
+ cached if they haven't been cached since this new font was loaded */
- for(i=0;i<256;i++) USTRCT(handle->instanceh[idx].glyphs[i])=NULL;
+ for(i=0;i<256;i++) {
+ handle->instanceh[idx].glyphs[i].ch = TT_NOCHAR;
+ USTRCT(handle->instanceh[idx].glyphs[i].glyph)=NULL;
+ }
return idx;
}
*/
TT_Fonthandle*
-i_tt_new(char *fontname) {
+i_tt_new(const char *fontname) {
TT_Error error;
TT_Fonthandle *handle;
unsigned short i,n;
unsigned short platform,encoding;
+
+ if (!TT_initialized && i_init_tt()) {
+ i_push_error(0, "Could not initialize FT1 engine");
+ return NULL;
+ }
+
+ i_clear_error();
mm_log((1,"i_tt_new(fontname '%s')\n",fontname));
/* allocate memory for the structure */
- handle=mymalloc( sizeof(TT_Fonthandle) );
+ handle = mymalloc( sizeof(TT_Fonthandle) ); /* checked 5Nov05 tonyc */
/* load the typeface */
error = TT_Open_Face( engine, fontname, &handle->face );
if ( error ) {
- if ( error == TT_Err_Could_Not_Open_File ) { mm_log((1, "Could not find/open %s.\n", fontname )) }
- else { mm_log((1, "Error while opening %s, error code = 0x%x.\n",fontname, error )); }
+ if ( error == TT_Err_Could_Not_Open_File ) {
+ mm_log((1, "Could not find/open %s.\n", fontname ));
+ }
+ else {
+ mm_log((1, "Error while opening %s, error code = 0x%x.\n",fontname,
+ (unsigned)error ));
+ }
+ i_tt_push_error(error);
return NULL;
}
TT_Get_Face_Properties( handle->face, &(handle->properties) );
+
/* First, look for a Unicode charmap */
-
n = handle->properties.num_CharMaps;
USTRCT( handle->char_map )=NULL; /* Invalidate character map */
for ( i = 0; i < n; i++ ) {
TT_Get_CharMap_ID( handle->face, i, &platform, &encoding );
- if ( (platform == 3 && encoding == 1 ) || (platform == 0 && encoding == 0 ) ) {
+ if ( (platform == 3 && encoding == 1 )
+ || (platform == 0 && encoding == 0 ) ) {
+ mm_log((2,"i_tt_new - found char map platform %u encoding %u\n",
+ platform, encoding));
TT_Get_CharMap( handle->face, i, &(handle->char_map) );
break;
}
}
+ if (!USTRCT(handle->char_map) && n != 0) {
+ /* just use the first one */
+ TT_Get_CharMap( handle->face, 0, &(handle->char_map));
+ }
/* Zero the pointsizes - and ordering */
handle->instanceh[i].smooth=-1;
}
- mm_log((1,"i_tt_new <- 0x%X\n",handle));
+#ifdef FTXPOST
+ handle->loaded_names = 0;
+#endif
+
+ mm_log((1,"i_tt_new <- %p\n",handle));
return handle;
}
static
void
-i_tt_init_raster_map( TT_Raster_Map* bit, int width, int height, int smooth ) {
+i_tt_init_raster_map( TT_Raster_Map* bit, i_img_dim width, i_img_dim height, int smooth ) {
- mm_log((1,"i_tt_init_raster_map( bit 08x%08X, width %d, height %d, smooth %d)\n", bit, width, height, smooth));
+ mm_log((1,"i_tt_init_raster_map( bit %p, width %" i_DF ", height %" i_DF
+ ", smooth %d)\n", bit, i_DFc(width), i_DFc(height), smooth));
bit->rows = height;
bit->width = ( width + 3 ) & -4;
bit->cols = ( bit->width + 7 ) / 8; /* convert to # of bytes */
bit->size = bit->rows * bit->cols; /* number of bytes in buffer */
}
+
+ /* rows can be 0 for some glyphs, for example ' ' */
+ if (bit->rows && bit->size / bit->rows != bit->cols) {
+ i_fatal(0, "Integer overflow calculating bitmap size (%d, %d)\n",
+ bit->width, bit->rows);
+ }
- mm_log((1,"i_tt_init_raster_map: bit->width %d, bit->cols %d, bit->rows %d, bit->size %d)\n", bit->width, bit->cols, bit->rows, bit->size ));
+ mm_log((1,"i_tt_init_raster_map: bit->width %d, bit->cols %d, bit->rows %d, bit->size %ld)\n", bit->width, bit->cols, bit->rows, bit->size ));
- bit->bitmap = (void *) mymalloc( bit->size );
- if ( !bit->bitmap ) m_fatal(0,"Not enough memory to allocate bitmap (%d)!\n",bit->size );
+ bit->bitmap = (void *) mymalloc( bit->size ); /* checked 6Nov05 tonyc */
+ if ( !bit->bitmap ) i_fatal(0,"Not enough memory to allocate bitmap (%d)!\n",bit->size );
}
static
void
-i_tt_blit_or( TT_Raster_Map *dst, TT_Raster_Map *src,int x_off, int y_off ) {
- int x, y;
- int x1, x2, y1, y2;
- char *s, *d;
+i_tt_blit_or( TT_Raster_Map *dst, TT_Raster_Map *src,i_img_dim x_off, i_img_dim y_off ) {
+ i_img_dim x, y;
+ i_img_dim x1, x2, y1, y2;
+ unsigned char *s, *d;
x1 = x_off < 0 ? -x_off : 0;
y1 = y_off < 0 ? -y_off : 0;
/* do the real work now */
for ( y = y1; y < y2; ++y ) {
- s = ( (char*)src->bitmap ) + y * src->cols + x1;
- d = ( (char*)dst->bitmap ) + ( y + y_off ) * dst->cols + x1 + x_off;
+ s = ( (unsigned char*)src->bitmap ) + y * src->cols + x1;
+ d = ( (unsigned char*)dst->bitmap ) + ( y + y_off ) * dst->cols + x1 + x_off;
for ( x = x1; x < x2; ++x ) {
if (*s > *d)
static
int
-i_tt_get_glyph( TT_Fonthandle *handle, int inst, unsigned char j) { /* FIXME: Check if unsigned char is enough */
+i_tt_get_glyph( TT_Fonthandle *handle, int inst, unsigned long j) {
unsigned short load_flags, code;
TT_Error error;
- mm_log((1, "i_tt_get_glyph(handle 0x%X, inst %d, j %d (%c))\n",handle,inst,j,j));
- mm_log((1, "handle->instanceh[inst].glyphs[j]=0x%08X\n",handle->instanceh[inst].glyphs[j] ));
+ mm_log((1, "i_tt_get_glyph(handle %p, inst %d, j %lu (%c))\n",
+ handle,inst,j, (int)((j >= ' ' && j <= '~') ? j : '.')));
+
+ /*mm_log((1, "handle->instanceh[inst].glyphs[j]=0x%08X\n",handle->instanceh[inst].glyphs[j] ));*/
- if ( TT_VALID(handle->instanceh[inst].glyphs[j]) ) {
- mm_log((1,"i_tt_get_glyph: %d in cache\n",j));
+ if ( TT_VALID(handle->instanceh[inst].glyphs[TT_HASH(j)].glyph)
+ && handle->instanceh[inst].glyphs[TT_HASH(j)].ch == j) {
+ mm_log((1,"i_tt_get_glyph: %lu in cache\n",j));
return 1;
}
+
+ if ( TT_VALID(handle->instanceh[inst].glyphs[TT_HASH(j)].glyph) ) {
+ /* clean up the entry */
+ TT_Done_Glyph( handle->instanceh[inst].glyphs[TT_HASH(j)].glyph );
+ USTRCT( handle->instanceh[inst].glyphs[TT_HASH(j)].glyph ) = NULL;
+ handle->instanceh[inst].glyphs[TT_HASH(j)].ch = TT_NOCHAR;
+ }
/* Ok - it wasn't cached - try to get it in */
load_flags = TTLOAD_SCALE_GLYPH;
if ( code >= handle->properties.num_Glyphs ) code = 0;
} else code = TT_Char_Index( handle->char_map, j );
- if ( (error = TT_New_Glyph( handle->face, &handle->instanceh[inst].glyphs[j])) )
- mm_log((1, "Cannot allocate and load glyph: error 0x%x.\n", error ));
- if ( (error = TT_Load_Glyph( handle->instanceh[inst].instance, handle->instanceh[inst].glyphs[j], code, load_flags)) )
- mm_log((1, "Cannot allocate and load glyph: error 0x%x.\n", error ));
-
+ if ( (error = TT_New_Glyph( handle->face, &handle->instanceh[inst].glyphs[TT_HASH(j)].glyph)) ) {
+ mm_log((1, "Cannot allocate and load glyph: error %#x.\n", (unsigned)error ));
+ i_push_error(error, "TT_New_Glyph()");
+ return 0;
+ }
+ if ( (error = TT_Load_Glyph( handle->instanceh[inst].instance, handle->instanceh[inst].glyphs[TT_HASH(j)].glyph, code, load_flags)) ) {
+ mm_log((1, "Cannot allocate and load glyph: error %#x.\n", (unsigned)error ));
+ /* Don't leak */
+ TT_Done_Glyph( handle->instanceh[inst].glyphs[TT_HASH(j)].glyph );
+ USTRCT( handle->instanceh[inst].glyphs[TT_HASH(j)].glyph ) = NULL;
+ i_push_error(error, "TT_Load_Glyph()");
+ return 0;
+ }
+
/* At this point the glyph should be allocated and loaded */
+ handle->instanceh[inst].glyphs[TT_HASH(j)].ch = j;
+
/* Next get the glyph metrics */
-
- error = TT_Get_Glyph_Metrics( handle->instanceh[inst].glyphs[j], &handle->instanceh[inst].gmetrics[j] );
- mm_log((1, "TT_Get_Glyph_Metrics: error 0x%x.\n", error ));
+ error = TT_Get_Glyph_Metrics( handle->instanceh[inst].glyphs[TT_HASH(j)].glyph,
+ &handle->instanceh[inst].gmetrics[TT_HASH(j)] );
+ if (error) {
+ mm_log((1, "TT_Get_Glyph_Metrics: error %#x.\n", (unsigned)error ));
+ TT_Done_Glyph( handle->instanceh[inst].glyphs[TT_HASH(j)].glyph );
+ USTRCT( handle->instanceh[inst].glyphs[TT_HASH(j)].glyph ) = NULL;
+ handle->instanceh[inst].glyphs[TT_HASH(j)].ch = TT_NOCHAR;
+ i_push_error(error, "TT_Get_Glyph_Metrics()");
+ return 0;
+ }
+
return 1;
}
+/*
+=item i_tt_has_chars(handle, text, len, utf8, out)
+
+Check if the given characters are defined by the font. Note that len
+is the number of bytes, not the number of characters (when utf8 is
+non-zero).
+
+Returns the number of characters that were checked.
+
+=cut
+*/
+
+size_t
+i_tt_has_chars(TT_Fonthandle *handle, char const *text, size_t len, int utf8,
+ char *out) {
+ size_t count = 0;
+ mm_log((1, "i_tt_has_chars(handle %p, text %p, len %ld, utf8 %d)\n",
+ handle, text, (long)len, utf8));
+
+ while (len) {
+ unsigned long c;
+ int index;
+ if (utf8) {
+ c = i_utf8_advance(&text, &len);
+ if (c == ~0UL) {
+ i_push_error(0, "invalid UTF8 character");
+ return 0;
+ }
+ }
+ else {
+ c = (unsigned char)*text++;
+ --len;
+ }
+
+ if (TT_VALID(handle->char_map)) {
+ index = TT_Char_Index(handle->char_map, c);
+ }
+ else {
+ index = (c - ' ' + 1) < 0 ? 0 : (c - ' ' + 1);
+ if (index >= handle->properties.num_Glyphs)
+ index = 0;
+ }
+ *out++ = index != 0;
+ ++count;
+ }
+
+ return count;
+}
/*
=item i_tt_destroy(handle)
void
i_tt_destroy( TT_Fonthandle *handle) {
TT_Close_Face( handle->face );
+ myfree( handle );
/* FIXME: Should these be freed automatically by the library?
static
void
-i_tt_render_glyph( TT_Glyph glyph, TT_Glyph_Metrics* gmetrics, TT_Raster_Map *bit, TT_Raster_Map *small_bit, int x_off, int y_off, int smooth ) {
+i_tt_render_glyph( TT_Glyph glyph, TT_Glyph_Metrics* gmetrics, TT_Raster_Map *bit, TT_Raster_Map *small_bit, i_img_dim x_off, i_img_dim y_off, int smooth ) {
- mm_log((1,"i_tt_render_glyph(glyph 0x0%X, gmetrics 0x0%X, bit 0x%X, small_bit 0x%X, x_off %d, y_off %d, smooth %d)\n",
- USTRCT(glyph), gmetrics, bit, small_bit, x_off,y_off,smooth));
+ mm_log((1,"i_tt_render_glyph(glyph %p, gmetrics %p, bit %p, small_bit %p, x_off %" i_DF ", y_off %" i_DF ", smooth %d)\n",
+ USTRCT(glyph), gmetrics, bit, small_bit, i_DFc(x_off),
+ i_DFc(y_off), smooth));
if ( !smooth ) TT_Get_Glyph_Bitmap( glyph, bit, x_off * 64, y_off * 64);
else {
*/
static
-void
-i_tt_render_all_glyphs( TT_Fonthandle *handle, int inst, TT_Raster_Map *bit, TT_Raster_Map *small_bit, int cords[6], char* txt, int len, int smooth ) {
- unsigned char j;
- int i;
+int
+i_tt_render_all_glyphs( TT_Fonthandle *handle, int inst, TT_Raster_Map *bit,
+ TT_Raster_Map *small_bit, i_img_dim cords[6],
+ char const* txt, size_t len, int smooth, int utf8 ) {
+ unsigned long j;
TT_F26Dot6 x,y;
- mm_log((1,"i_tt_render_all_glyphs( handle 0x%X, inst %d, bit 0x%X, small_bit 0x%X, txt '%.*s', len %d, smooth %d)\n",
- handle, inst, bit, small_bit, len, txt, len, smooth));
+ mm_log((1,"i_tt_render_all_glyphs( handle %p, inst %d, bit %p, small_bit %p, txt '%.*s', len %ld, smooth %d, utf8 %d)\n",
+ handle, inst, bit, small_bit, (int)len, txt, (long)len, smooth, utf8));
/*
y=-( handle->properties.horizontal->Descender * handle->instanceh[inst].imetrics.y_ppem )/(handle->properties.header->Units_Per_EM);
*/
x=-cords[0]; /* FIXME: If you font is antialiased this should be expanded by one to allow for aa expansion and the allocation too - do before passing here */
- y=-cords[1];
-
- for ( i = 0; i < len; i++ ) {
- j = txt[i];
- if ( !i_tt_get_glyph(handle,inst,j) ) continue;
- i_tt_render_glyph( handle->instanceh[inst].glyphs[j], &handle->instanceh[inst].gmetrics[j], bit, small_bit, x, y, smooth );
- x += handle->instanceh[inst].gmetrics[j].advance / 64;
+ y=-cords[4];
+
+ while (len) {
+ if (utf8) {
+ j = i_utf8_advance(&txt, &len);
+ if (j == ~0UL) {
+ i_push_error(0, "invalid UTF8 character");
+ return 0;
+ }
+ }
+ else {
+ j = (unsigned char)*txt++;
+ --len;
+ }
+ if ( !i_tt_get_glyph(handle,inst,j) )
+ continue;
+ i_tt_render_glyph( handle->instanceh[inst].glyphs[TT_HASH(j)].glyph,
+ &handle->instanceh[inst].gmetrics[TT_HASH(j)], bit,
+ small_bit, x, y, smooth );
+ x += handle->instanceh[inst].gmetrics[TT_HASH(j)].advance / 64;
}
+
+ return 1;
}
static
void
-i_tt_dump_raster_map2( i_img* im, TT_Raster_Map* bit, int xb, int yb, i_color *cl, int smooth ) {
- char *bmap;
- i_color val;
- int c, i, ch, x, y;
- mm_log((1,"i_tt_dump_raster_map2(im 0x%x, bit 0x%X, xb %d, yb %d, cl 0x%X)\n",im,bit,xb,yb,cl));
+i_tt_dump_raster_map2( i_img* im, TT_Raster_Map* bit, i_img_dim xb, i_img_dim yb, const i_color *cl, int smooth ) {
+ unsigned char *bmap;
+ i_img_dim x, y;
+ mm_log((1,"i_tt_dump_raster_map2(im %p, bit %p, xb %" i_DF ", yb %" i_DF ", cl %p)\n",
+ im, bit, i_DFc(xb), i_DFc(yb), cl));
- bmap = (char *)bit->bitmap;
+ bmap = bit->bitmap;
if ( smooth ) {
- for(y=0;y<bit->rows;y++) for(x=0;x<bit->width;x++) {
- c=(255*bmap[y*(bit->cols)+x])/4;
- i=255-c;
- i_gpix(im,x+xb,y+yb,&val);
- for(ch=0;ch<im->channels;ch++) val.channel[ch]=(c*cl->channel[ch]+i*val.channel[ch])/255;
- i_ppix(im,x+xb,y+yb,&val);
+ i_render r;
+ i_render_init(&r, im, bit->cols);
+ for(y=0;y<bit->rows;y++) {
+ i_render_color(&r, xb, yb+y, bit->cols, bmap + y*bit->cols, cl);
}
-
+ i_render_done(&r);
} else {
-
- for(y=0;y<bit->rows;y++) for(x=0;x<bit->width;x++) {
- c=( bmap[y*bit->cols+x/8] & (128>>(x%8)) ) ? 255 : 0;
- i=255-c;
- i_gpix(im,x+xb,y+yb,&val);
- for(ch=0;ch<im->channels;ch++) val.channel[ch]=(c*cl->channel[ch]+i*val.channel[ch])/255;
- i_ppix(im,x+xb,y+yb,&val);
+ for(y=0;y<bit->rows;y++) {
+ unsigned mask = 0x80;
+ unsigned char *p = bmap + y * bit->cols;
+
+ for(x = 0; x < bit->width; x++) {
+ if (*p & mask) {
+ i_ppix(im, x+xb, y+yb, cl);
+ }
+ mask >>= 1;
+ if (!mask) {
+ mask = 0x80;
+ ++p;
+ }
+ }
}
}
static
void
-i_tt_dump_raster_map_channel( i_img* im, TT_Raster_Map* bit, int xb, int yb, int channel, int smooth ) {
- char *bmap;
+i_tt_dump_raster_map_channel( i_img* im, TT_Raster_Map* bit, i_img_dim xb, i_img_dim yb, int channel, int smooth ) {
+ unsigned char *bmap;
i_color val;
- int c,x,y;
+ int c;
+ i_img_dim x,y;
+ int old_mask = im->ch_mask;
+ im->ch_mask = 1 << channel;
- mm_log((1,"i_tt_dump_raster_channel(im 0x%x, bit 0x%X, xb %d, yb %d, channel %d)\n",im,bit,xb,yb,channel));
+ mm_log((1,"i_tt_dump_raster_channel(im %p, bit %p, xb %" i_DF ", yb %" i_DF ", channel %d)\n",
+ im, bit, i_DFc(xb), i_DFc(yb), channel));
- bmap = (char *)bit->bitmap;
+ bmap = bit->bitmap;
if ( smooth ) {
for(y=0;y<bit->rows;y++) for(x=0;x<bit->width;x++) {
- c=(255*bmap[y*(bit->cols)+x])/4;
- i_gpix(im,x+xb,y+yb,&val);
- val.channel[channel]=c;
+ c = bmap[y*(bit->cols)+x];
+ val.channel[channel] = c;
i_ppix(im,x+xb,y+yb,&val);
}
} else {
- for(y=0;y<bit->rows;y++) for(x=0;x<bit->width;x++) {
- c=( bmap[y*bit->cols+x/8] & (128>>(x%8)) ) ? 255 : 0;
- i_gpix(im,x+xb,y+yb,&val);
- val.channel[channel]=c;
- i_ppix(im,x+xb,y+yb,&val);
+ for(y=0;y<bit->rows;y++) {
+ unsigned mask = 0x80;
+ unsigned char *p = bmap + y * bit->cols;
+
+ for(x=0;x<bit->width;x++) {
+ val.channel[channel] = (*p & mask) ? 255 : 0;
+ i_ppix(im,x+xb,y+yb,&val);
+
+ mask >>= 1;
+ if (!mask) {
+ ++p;
+ mask = 0x80;
+ }
+ }
}
}
+ im->ch_mask = old_mask;
}
static
int
-i_tt_rasterize( TT_Fonthandle *handle, TT_Raster_Map *bit, int cords[6], float points, char* txt, int len, int smooth ) {
+i_tt_rasterize( TT_Fonthandle *handle, TT_Raster_Map *bit, i_img_dim cords[6], double points, char const* txt, size_t len, int smooth, int utf8 ) {
int inst;
- int width, height;
+ i_img_dim width, height;
TT_Raster_Map small_bit;
/* find or install an instance */
}
/* calculate bounding box */
- i_tt_bbox_inst( handle, inst, txt, len, cords );
+ if (!i_tt_bbox_inst( handle, inst, txt, len, cords, utf8 ))
+ return 0;
+
width = cords[2]-cords[0];
- height = cords[3]-cords[1];
+ height = cords[5]-cords[4];
- mm_log((1,"i_tt_rasterize: width=%d, height=%d\n",width, height ));
+ mm_log((1,"i_tt_rasterize: width=%" i_DF ", height=%" i_DF "\n",
+ i_DFc(width), i_DFc(height) ));
i_tt_init_raster_map ( bit, width, height, smooth );
i_tt_clear_raster_map( bit );
if ( smooth ) i_tt_init_raster_map( &small_bit, handle->instanceh[inst].imetrics.x_ppem + 32, height, smooth );
- i_tt_render_all_glyphs( handle, inst, bit, &small_bit, cords, txt, len, smooth );
+ if (!i_tt_render_all_glyphs( handle, inst, bit, &small_bit, cords, txt, len,
+ smooth, utf8 )) {
+ if ( smooth )
+ i_tt_done_raster_map( &small_bit );
+ return 0;
+ }
- /* ascent = ( handle->properties.horizontal->Ascender * handle->instanceh[inst].imetrics.y_ppem ) / handle->properties.header->Units_Per_EM; */
-
if ( smooth ) i_tt_done_raster_map( &small_bit );
return 1;
}
/*
-=item i_tt_cp(handle, im, xb, yb, channel, points, txt, len, smooth)
+=item i_tt_cp(handle, im, xb, yb, channel, points, txt, len, smooth, utf8)
Interface to text rendering into a single channel in an image
*/
undef_int
-i_tt_cp( TT_Fonthandle *handle, i_img *im, int xb, int yb, int channel, float points, char* txt, int len, int smooth ) {
+i_tt_cp( TT_Fonthandle *handle, i_img *im, i_img_dim xb, i_img_dim yb, int channel, double points, char const* txt, size_t len, int smooth, int utf8, int align ) {
- int cords[6];
- int ascent, st_offset;
+ i_img_dim cords[BOUNDING_BOX_COUNT];
+ i_img_dim ascent, st_offset, y;
TT_Raster_Map bit;
- if (! i_tt_rasterize( handle, &bit, cords, points, txt, len, smooth ) ) return 0;
+ i_clear_error();
+ if (! i_tt_rasterize( handle, &bit, cords, points, txt, len, smooth, utf8 ) ) return 0;
- ascent=cords[3];
- st_offset=cords[0];
+ ascent=cords[BBOX_ASCENT];
+ st_offset=cords[BBOX_NEG_WIDTH];
+ y = align ? yb-ascent : yb;
- i_tt_dump_raster_map_channel( im, &bit, xb-st_offset , yb-ascent, channel, smooth );
+ i_tt_dump_raster_map_channel( im, &bit, xb-st_offset , y, channel, smooth );
i_tt_done_raster_map( &bit );
return 1;
/*
-=item i_tt_text(handle, im, xb, yb, cl, points, txt, len, smooth)
+=item i_tt_text(handle, im, xb, yb, cl, points, txt, len, smooth, utf8)
Interface to text rendering in a single color onto an image
*/
undef_int
-i_tt_text( TT_Fonthandle *handle, i_img *im, int xb, int yb, i_color *cl, float points, char* txt, int len, int smooth) {
- int cords[6];
- int ascent, st_offset;
+i_tt_text( TT_Fonthandle *handle, i_img *im, i_img_dim xb, i_img_dim yb, const i_color *cl, double points, char const* txt, size_t len, int smooth, int utf8, int align) {
+ i_img_dim cords[BOUNDING_BOX_COUNT];
+ i_img_dim ascent, st_offset, y;
TT_Raster_Map bit;
+
+ i_clear_error();
- if (! i_tt_rasterize( handle, &bit, cords, points, txt, len, smooth ) ) return 0;
+ if (! i_tt_rasterize( handle, &bit, cords, points, txt, len, smooth, utf8 ) ) return 0;
- ascent=cords[3];
- st_offset=cords[0];
+ ascent=cords[BBOX_ASCENT];
+ st_offset=cords[BBOX_NEG_WIDTH];
+ y = align ? yb-ascent : yb;
- i_tt_dump_raster_map2( im, &bit, xb+st_offset, yb-ascent, cl, smooth );
+ i_tt_dump_raster_map2( im, &bit, xb+st_offset, y, cl, smooth );
i_tt_done_raster_map( &bit );
return 1;
/*
-=item i_tt_bbox_inst(handle, inst, txt, len, cords)
+=item i_tt_bbox_inst(handle, inst, txt, len, cords, utf8)
Function to get texts bounding boxes given the instance of the font (internal)
static
undef_int
-i_tt_bbox_inst( TT_Fonthandle *handle, int inst ,const char *txt, int len, int cords[6] ) {
- int i, upm, ascent, descent, gascent, gdescent, width, casc, cdesc, first, start;
- unsigned int j;
+i_tt_bbox_inst( TT_Fonthandle *handle, int inst ,const char *txt, size_t len, i_img_dim cords[BOUNDING_BOX_COUNT], int utf8 ) {
+ int upm, casc, cdesc, first;
+
+ int start = 0;
+ i_img_dim width = 0;
+ int gdescent = 0;
+ int gascent = 0;
+ int descent = 0;
+ int ascent = 0;
+ int rightb = 0;
+
+ unsigned long j;
unsigned char *ustr;
ustr=(unsigned char*)txt;
-
- mm_log((1,"i_tt_box_inst(handle 0x%X,inst %d,txt '%.*s', len %d)\n",handle,inst,len,txt,len));
+
+ mm_log((1,"i_tt_box_inst(handle %p,inst %d,txt '%.*s', len %ld, utf8 %d)\n",
+ handle, inst, (int)len, txt, (long)len, utf8));
upm = handle->properties.header->Units_Per_EM;
gascent = ( handle->properties.horizontal->Ascender * handle->instanceh[inst].imetrics.y_ppem + upm - 1) / upm;
mm_log((1, "i_tt_box_inst: gascent=%d gdescent=%d\n", gascent, gdescent));
first=1;
- for ( i = 0; i < len; ++i ) {
- j = ustr[i];
+ while (len) {
+ if (utf8) {
+ j = i_utf8_advance(&txt, &len);
+ if (j == ~0UL) {
+ i_push_error(0, "invalid UTF8 character");
+ return 0;
+ }
+ }
+ else {
+ j = (unsigned char)*txt++;
+ --len;
+ }
if ( i_tt_get_glyph(handle,inst,j) ) {
- TT_Glyph_Metrics *gm = handle->instanceh[inst].gmetrics + j;
+ TT_Glyph_Metrics *gm = handle->instanceh[inst].gmetrics + TT_HASH(j);
width += gm->advance / 64;
casc = (gm->bbox.yMax+63) / 64;
cdesc = (gm->bbox.yMin-63) / 64;
- mm_log((1, "i_tt_box_inst: glyph='%c' casc=%d cdesc=%d\n", j, casc, cdesc));
+ mm_log((1, "i_tt_box_inst: glyph='%c' casc=%d cdesc=%d\n",
+ (int)((j >= ' ' && j <= '~') ? j : '.'), casc, cdesc));
if (first) {
start = gm->bbox.xMin / 64;
descent = (gm->bbox.yMin-63) / 64;
first = 0;
}
- if (i == len-1) {
+ if (!len) { /* if at end of string */
/* the right-side bearing - in case the right-side of a
character goes past the right of the advance width,
as is common for italic fonts
*/
- int rightb = gm->advance - gm->bearingX
+ rightb = gm->advance - gm->bearingX
- (gm->bbox.xMax - gm->bbox.xMin);
/* fprintf(stderr, "font info last: %d %d %d %d\n",
gm->bbox.xMax, gm->bbox.xMin, gm->advance, rightb); */
- if (rightb < 0)
- width -= rightb/64;
}
ascent = (ascent > casc ? ascent : casc );
}
}
- cords[0]=start;
- cords[1]=gdescent;
- cords[2]=width;
- cords[3]=gascent;
- cords[4]=descent;
- cords[5]=ascent;
- return 1;
+ cords[BBOX_NEG_WIDTH]=start;
+ cords[BBOX_GLOBAL_DESCENT]=gdescent;
+ cords[BBOX_POS_WIDTH]=width;
+ if (rightb < 0)
+ cords[BBOX_POS_WIDTH] -= rightb / 64;
+ cords[BBOX_GLOBAL_ASCENT]=gascent;
+ cords[BBOX_DESCENT]=descent;
+ cords[BBOX_ASCENT]=ascent;
+ cords[BBOX_ADVANCE_WIDTH] = width;
+ cords[BBOX_RIGHT_BEARING] = rightb / 64;
+
+ return BBOX_RIGHT_BEARING + 1;
}
/*
-=item i_tt_bbox(handle, points, txt, len, cords)
+=item i_tt_bbox(handle, points, txt, len, cords, utf8)
Interface to get a strings bounding box
*/
undef_int
-i_tt_bbox( TT_Fonthandle *handle, float points,char *txt,int len,int cords[6]) {
+i_tt_bbox( TT_Fonthandle *handle, double points,const char *txt,size_t len,i_img_dim cords[6], int utf8) {
int inst;
-
- mm_log((1,"i_tt_box(handle 0x%X,points %f,txt '%.*s', len %d)\n",handle,points,len,txt,len));
+
+ i_clear_error();
+ mm_log((1,"i_tt_box(handle %p,points %f,txt '%.*s', len %ld, utf8 %d)\n",
+ handle, points, (int)len, txt, (long)len, utf8));
if ( (inst=i_tt_get_instance(handle,points,-1)) < 0) {
+ i_push_errorf(0, "i_tt_get_instance(%g)", points);
mm_log((1,"i_tt_text: get instance failed\n"));
return 0;
}
- return i_tt_bbox_inst(handle, inst, txt, len, cords);
+ return i_tt_bbox_inst(handle, inst, txt, len, cords, utf8);
+}
+
+/*
+=item i_tt_face_name(handle, name_buf, name_buf_size)
+
+Retrieve's the font's postscript name.
+
+This is complicated by the need to handle encodings and so on.
+
+=cut
+ */
+size_t
+i_tt_face_name(TT_Fonthandle *handle, char *name_buf, size_t name_buf_size) {
+ TT_Face_Properties props;
+ int name_count;
+ int i;
+ TT_UShort platform_id, encoding_id, lang_id, name_id;
+ TT_UShort name_len;
+ TT_String *name;
+ int want_index = -1; /* an acceptable but not perfect name */
+ int score = 0;
+
+ i_clear_error();
+
+ TT_Get_Face_Properties(handle->face, &props);
+ name_count = props.num_Names;
+ for (i = 0; i < name_count; ++i) {
+ TT_Get_Name_ID(handle->face, i, &platform_id, &encoding_id, &lang_id,
+ &name_id);
+
+ TT_Get_Name_String(handle->face, i, &name, &name_len);
+
+ if (platform_id != TT_PLATFORM_APPLE_UNICODE && name_len
+ && name_id == TT_NAME_ID_PS_NAME) {
+ int might_want_index = -1;
+ int might_score = 0;
+ if ((platform_id == TT_PLATFORM_MACINTOSH && encoding_id == TT_MAC_ID_ROMAN)
+ ||
+ (platform_id == TT_PLATFORM_MICROSOFT && encoding_id == TT_MS_LANGID_ENGLISH_UNITED_STATES)) {
+ /* exactly what we want */
+ want_index = i;
+ break;
+ }
+
+ if (platform_id == TT_PLATFORM_MICROSOFT
+ && (encoding_id & 0xFF) == TT_MS_LANGID_ENGLISH_GENERAL) {
+ /* any english is good */
+ might_want_index = i;
+ might_score = 9;
+ }
+ /* there might be something in between */
+ else {
+ /* anything non-unicode is better than nothing */
+ might_want_index = i;
+ might_score = 1;
+ }
+ if (might_score > score) {
+ score = might_score;
+ want_index = might_want_index;
+ }
+ }
+ }
+
+ if (want_index != -1) {
+ TT_Get_Name_String(handle->face, want_index, &name, &name_len);
+
+ strncpy(name_buf, name, name_buf_size);
+ name_buf[name_buf_size-1] = '\0';
+
+ return strlen(name) + 1;
+ }
+ else {
+ i_push_error(0, "no face name present");
+ return 0;
+ }
+}
+
+void i_tt_dump_names(TT_Fonthandle *handle) {
+ TT_Face_Properties props;
+ int name_count;
+ int i;
+ TT_UShort platform_id, encoding_id, lang_id, name_id;
+ TT_UShort name_len;
+ TT_String *name;
+
+ TT_Get_Face_Properties(handle->face, &props);
+ name_count = props.num_Names;
+ for (i = 0; i < name_count; ++i) {
+ TT_Get_Name_ID(handle->face, i, &platform_id, &encoding_id, &lang_id,
+ &name_id);
+ TT_Get_Name_String(handle->face, i, &name, &name_len);
+
+ printf("# %d: plat %d enc %d lang %d name %d value ", i, platform_id,
+ encoding_id, lang_id, name_id);
+ if (platform_id == TT_PLATFORM_APPLE_UNICODE) {
+ printf("(unicode)\n");
+ }
+ else {
+ printf("'%s'\n", name);
+ }
+ }
+ fflush(stdout);
+}
+
+size_t
+i_tt_glyph_name(TT_Fonthandle *handle, unsigned long ch, char *name_buf,
+ size_t name_buf_size) {
+#ifdef FTXPOST
+ TT_Error rc;
+ TT_String *psname;
+ TT_UShort index;
+
+ i_clear_error();
+
+ if (!handle->loaded_names) {
+ TT_Post post;
+ mm_log((1, "Loading PS Names"));
+ handle->load_cond = TT_Load_PS_Names(handle->face, &post);
+ ++handle->loaded_names;
+ }
+
+ if (handle->load_cond) {
+ i_push_errorf(handle->load_cond, "error loading names (%#x)",
+ (unsigned)handle->load_cond);
+ return 0;
+ }
+
+ index = TT_Char_Index(handle->char_map, ch);
+ if (!index) {
+ i_push_error(0, "no such character");
+ return 0;
+ }
+
+ rc = TT_Get_PS_Name(handle->face, index, &psname);
+
+ if (rc) {
+ i_push_error(rc, "error getting name");
+ return 0;
+ }
+
+ strncpy(name_buf, psname, name_buf_size);
+ name_buf[name_buf_size-1] = '\0';
+
+ return strlen(psname) + 1;
+#else
+ mm_log((1, "FTXPOST extension not enabled\n"));
+ i_clear_error();
+ i_push_error(0, "Use of FTXPOST extension disabled");
+
+ return 0;
+#endif
}
+/*
+=item i_tt_push_error(code)
+
+Push an error message and code onto the Imager error stack.
+=cut
+*/
+static void
+i_tt_push_error(TT_Error rc) {
+#ifdef FTXERR18
+ TT_String const *msg = TT_ErrToString18(rc);
+
+ i_push_error(rc, msg);
+#else
+ i_push_errorf(rc, "Error code 0x%04x", (unsigned)rc);
+#endif
+}
#endif /* HAVE_LIBTT */
projects / imager.git / blobdiff