add new comparison method rgb_difference that resembles arithmetical difference per...

[imager.git] / fontft1.c

diff --git a/fontft1.c b/fontft1.c
index 591d68b8cd336ac3a486cc6d94e77d75f7d7e1ef..50602902d3c9ef750c23e426fb33ce4d0283aef4 100644 (file)
--- a/fontft1.c
+++ b/fontft1.c
@@ -151,7 +151,7 @@ static int  LTT_hinted = 1;  /* FIXME: this too */
 void
 i_tt_start(void) {
   if (slot == -1)
-    slot = im_context_slot_new(i_tt_uninit, "TT");
+    slot = im_context_slot_new(i_tt_uninit);
 }
 
 
@@ -371,6 +371,7 @@ i_tt_new(const char *fontname) {
   /* load the typeface */
   error = TT_Open_Face( tteng->engine, fontname, &handle->face );
   if ( error ) {
+    myfree(handle);
     if ( error == TT_Err_Could_Not_Open_File ) {
       mm_log((1, "Could not find/open %s.\n", fontname ));
     }
@@ -612,7 +613,7 @@ i_tt_get_glyph( TT_Fonthandle *handle, int inst, unsigned long j) {
   if ( LTT_hinted ) load_flags |= TTLOAD_HINT_GLYPH;
   
   if ( !TT_VALID(handle->char_map) ) {
-    code = (j - ' ' + 1) < 0 ? 0 : (j - ' ' + 1);
+    code = (j < ' ' - 1)  ? 0 : (j - (' ' - 1));
     if ( code >= handle->properties.num_Glyphs ) code = 0;
   } else code = TT_Char_Index( handle->char_map, j );
   
@@ -686,7 +687,7 @@ i_tt_has_chars(TT_Fonthandle *handle, char const *text, size_t len, int utf8,
       index = TT_Char_Index(handle->char_map, c);
     }
     else {
-      index = (c - ' ' + 1) < 0 ? 0 : (c - ' ' + 1);
+      index = (c < ' ' - 1) ? 0 : (c - (' ' - 1));
       if (index >= handle->properties.num_Glyphs)
         index = 0;
     }
@@ -762,12 +763,10 @@ i_tt_render_glyph( TT_Glyph glyph, TT_Glyph_Metrics* gmetrics, TT_Raster_Map *bi
   
   if ( !smooth ) TT_Get_Glyph_Bitmap( glyph, bit, x_off * 64, y_off * 64);
   else {
-    TT_F26Dot6 xmin, ymin, xmax, ymax;
+    TT_F26Dot6 xmin, ymin;
 
     xmin =  gmetrics->bbox.xMin & -64;
     ymin =  gmetrics->bbox.yMin & -64;
-    xmax = (gmetrics->bbox.xMax + 63) & -64;
-    ymax = (gmetrics->bbox.yMax + 63) & -64;
     
     i_tt_clear_raster_map( small_bit );
     TT_Get_Glyph_Pixmap( glyph, small_bit, -xmin, -ymin );
@@ -871,22 +870,30 @@ i_tt_dump_raster_map2( i_img* im, TT_Raster_Map* bit, i_img_dim xb, i_img_dim yb
     }
     i_render_done(&r);
   } else {
+    unsigned char *bmp = mymalloc(bit->width);
+    i_render r;
+
+    i_render_init(&r, im, bit->width);
+
     for(y=0;y<bit->rows;y++) {
       unsigned mask = 0x80;
       unsigned char *p = bmap + y * bit->cols;
+      unsigned char *pout = bmp;
 
       for(x = 0; x < bit->width; x++) {
-       if (*p & mask) {
-         i_ppix(im, x+xb, y+yb, cl);
-       }
+       *pout++ = (*p & mask) ? 0xFF : 0;
        mask >>= 1;
        if (!mask) {
          mask = 0x80;
          ++p;
        }
       }
+
+      i_render_color(&r, xb, yb+y, bit->width, bmp, cl);
     }
 
+    i_render_done(&r);
+    myfree(bmp);
   }
 }
 
@@ -965,7 +972,7 @@ interface for generating single channel raster of text (internal)
 
 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 ) {
+i_tt_rasterize( TT_Fonthandle *handle, TT_Raster_Map *bit, i_img_dim *cords, double points, char const* txt, size_t len, int smooth, int utf8 ) {
   int inst;
   i_img_dim width, height;
   TT_Raster_Map small_bit;
@@ -1101,7 +1108,7 @@ 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, size_t len, i_img_dim cords[BOUNDING_BOX_COUNT], int utf8 ) {
+i_tt_bbox_inst( TT_Fonthandle *handle, int inst ,const char *txt, size_t len, i_img_dim *cords, int utf8 ) {
   int upm, casc, cdesc, first;
   
   int start    = 0;
@@ -1113,8 +1120,6 @@ i_tt_bbox_inst( TT_Fonthandle *handle, int inst ,const char *txt, size_t len, i_
   int rightb   = 0;
 
   unsigned long j;
-  unsigned char *ustr;
-  ustr=(unsigned char*)txt;
 
   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));
@@ -1202,7 +1207,7 @@ Interface to get a strings bounding box
 */
 
 undef_int
-i_tt_bbox( TT_Fonthandle *handle, double points,const char *txt,size_t len,i_img_dim cords[6], int utf8) {
+i_tt_bbox( TT_Fonthandle *handle, double points,const char *txt,size_t len,i_img_dim *cords, int utf8) {
   int inst;
 
   i_clear_error();