Changes to GIF support:

[imager.git] / freetyp2.c

diff --git a/freetyp2.c b/freetyp2.c
index fed441104ddde7d3921cbfdccf41aba692bc00cf..4d30c5c06a7e289b6845376b34c9a2bdc86b2457 100644 (file)
--- a/freetyp2.c
+++ b/freetyp2.c
@@ -122,7 +122,7 @@ Return NULL on failure.
 */
 
 FT2_Fonthandle *
-i_ft2_new(char *name, int index) {
+i_ft2_new(const char *name, int index) {
   FT_Error error;
   FT2_Fonthandle *result;
   FT_Face face;
@@ -269,7 +269,7 @@ This should be a 2 x 3 matrix like:
 =cut
 */
 int
-i_ft2_settransform(FT2_Fonthandle *handle, double *matrix) {
+i_ft2_settransform(FT2_Fonthandle *handle, const double *matrix) {
   FT_Matrix m;
   FT_Vector v;
   int i;
@@ -629,7 +629,7 @@ Returns non-zero on success.
 =cut
 */
 int
-i_ft2_text(FT2_Fonthandle *handle, i_img *im, int tx, int ty, i_color *cl,
+i_ft2_text(FT2_Fonthandle *handle, i_img *im, int tx, int ty, const i_color *cl,
            double cheight, double cwidth, char const *text, int len, int align,
            int aa, int vlayout, int utf8) {
   FT_Error error;
@@ -693,55 +693,57 @@ i_ft2_text(FT2_Fonthandle *handle, i_img *im, int tx, int ty, i_color *cl,
     slot = handle->face->glyph;
     gm = &slot->metrics;
 
-    error = FT_Render_Glyph(slot, aa ? ft_render_mode_normal : ft_render_mode_mono);
-    if (error) {
-      ft2_push_message(error);
-      i_push_errorf(0, "rendering glyph 0x%04X (character \\x%02X)");
-      return 0;
-    }
-    if (slot->bitmap.pixel_mode == ft_pixel_mode_mono) {
-      bmp = slot->bitmap.buffer;
-      for (y = 0; y < slot->bitmap.rows; ++y) {
-        int pos = 0;
-        int bit = 0x80;
-        for (x = 0; x < slot->bitmap.width; ++x) {
-          if (bmp[pos] & bit)
-            i_ppix(im, tx+x+slot->bitmap_left, ty+y-slot->bitmap_top, cl);
-
-          bit >>= 1;
-          if (bit == 0) {
-            bit = 0x80;
-            ++pos;
-          }
-        }
-        bmp += slot->bitmap.pitch;
+    if (gm->width) {
+      error = FT_Render_Glyph(slot, aa ? ft_render_mode_normal : ft_render_mode_mono);
+      if (error) {
+       ft2_push_message(error);
+       i_push_errorf(0, "rendering glyph 0x%04X (character \\x%02X)");
+       return 0;
       }
-    }
-    else {
-      /* grey scale or something we can treat as greyscale */
-      /* we create a map to convert from the bitmap values to 0-255 */
-      if (last_mode != slot->bitmap.pixel_mode 
-          || last_grays != slot->bitmap.num_grays) {
-        if (!make_bmp_map(&slot->bitmap, map))
-          return 0;
-        last_mode = slot->bitmap.pixel_mode;
-        last_grays = slot->bitmap.num_grays;
+      if (slot->bitmap.pixel_mode == ft_pixel_mode_mono) {
+       bmp = slot->bitmap.buffer;
+       for (y = 0; y < slot->bitmap.rows; ++y) {
+         int pos = 0;
+         int bit = 0x80;
+         for (x = 0; x < slot->bitmap.width; ++x) {
+           if (bmp[pos] & bit)
+             i_ppix(im, tx+x+slot->bitmap_left, ty+y-slot->bitmap_top, cl);
+           
+           bit >>= 1;
+           if (bit == 0) {
+             bit = 0x80;
+             ++pos;
+           }
+         }
+         bmp += slot->bitmap.pitch;
+       }
       }
-      
-      bmp = slot->bitmap.buffer;
-      for (y = 0; y < slot->bitmap.rows; ++y) {
-        for (x = 0; x < slot->bitmap.width; ++x) {
-          int value = map[bmp[x]];
-          if (value) {
-            i_gpix(im, tx+x+slot->bitmap_left, ty+y-slot->bitmap_top, &pel);
-            for (ch = 0; ch < im->channels; ++ch) {
-              pel.channel[ch] = 
-                ((255-value)*pel.channel[ch] + value * cl->channel[ch]) / 255;
-            }
-            i_ppix(im, tx+x+slot->bitmap_left, ty+y-slot->bitmap_top, &pel);
-          }
-        }
-        bmp += slot->bitmap.pitch;
+      else {
+       /* grey scale or something we can treat as greyscale */
+       /* we create a map to convert from the bitmap values to 0-255 */
+       if (last_mode != slot->bitmap.pixel_mode 
+           || last_grays != slot->bitmap.num_grays) {
+         if (!make_bmp_map(&slot->bitmap, map))
+           return 0;
+         last_mode = slot->bitmap.pixel_mode;
+         last_grays = slot->bitmap.num_grays;
+       }
+       
+       bmp = slot->bitmap.buffer;
+       for (y = 0; y < slot->bitmap.rows; ++y) {
+         for (x = 0; x < slot->bitmap.width; ++x) {
+           int value = map[bmp[x]];
+           if (value) {
+             i_gpix(im, tx+x+slot->bitmap_left, ty+y-slot->bitmap_top, &pel);
+             for (ch = 0; ch < im->channels; ++ch) {
+               pel.channel[ch] = 
+                 ((255-value)*pel.channel[ch] + value * cl->channel[ch]) / 255;
+             }
+             i_ppix(im, tx+x+slot->bitmap_left, ty+y-slot->bitmap_top, &pel);
+           }
+         }
+         bmp += slot->bitmap.pitch;
+       }
       }
     }
 
@@ -1082,7 +1084,7 @@ i_ft2_get_multiple_masters(FT2_Fonthandle *handle, i_font_mm *mm) {
 }
 
 int
-i_ft2_set_mm_coords(FT2_Fonthandle *handle, int coord_count, long *coords) {
+i_ft2_set_mm_coords(FT2_Fonthandle *handle, int coord_count, const long *coords) {
 #ifdef IM_FT2_MM
   int i;
   FT_Long ftcoords[T1_MAX_MM_AXIS];