did some of it

[imager.git] / freetyp2.c

diff --git a/freetyp2.c b/freetyp2.c
index 1067c76024b90df59a2cfac2bba68d4f717b069c..d0409970eced396945be4a820cf1bcb3315202ee 100644 (file)
--- a/freetyp2.c
+++ b/freetyp2.c
@@ -327,7 +327,7 @@ i_ft2_bbox(FT2_Fonthandle *handle, double cheight, double cwidth,
   FT_Glyph_Metrics *gm;
   int start = 0;
   int loadFlags = FT_LOAD_DEFAULT;
-  int rightb;
+  int rightb = 0;
 
   mm_log((1, "i_ft2_bbox(handle %p, cheight %f, cwidth %f, text %p, len %d, bbox %p)\n",
          handle, cheight, cwidth, text, len, bbox));
@@ -642,9 +642,8 @@ i_ft2_text(FT2_Fonthandle *handle, i_img *im, int tx, int ty, const i_color *cl,
   unsigned char map[256];
   char last_mode = ft_pixel_mode_none; 
   int last_grays = -1;
-  int ch;
-  i_color pel;
   int loadFlags = FT_LOAD_DEFAULT;
+  i_render render;
 
   mm_log((1, "i_ft2_text(handle %p, im %p, tx %d, ty %d, cl %p, cheight %f, cwidth %f, text %p, len %d, align %d, aa %d)\n",
          handle, im, tx, ty, cl, cheight, cwidth, text, align, aa));
@@ -663,6 +662,9 @@ i_ft2_text(FT2_Fonthandle *handle, i_img *im, int tx, int ty, const i_color *cl,
   if (!i_ft2_bbox(handle, cheight, cwidth, text, len, bbox, utf8))
     return 0;
 
+  if (aa)
+    i_render_init(&render, im, bbox[BBOX_POS_WIDTH] - bbox[BBOX_NEG_WIDTH]);
+
   if (!align) {
     /* this may need adjustment */
     tx -= bbox[0] * handle->matrix[0] + bbox[5] * handle->matrix[1] + handle->matrix[2];
@@ -688,60 +690,62 @@ i_ft2_text(FT2_Fonthandle *handle, i_img *im, int tx, int ty, const i_color *cl,
       ft2_push_message(error);
       i_push_errorf(0, "loading glyph for character \\x%02x (glyph 0x%04X)", 
                     c, index);
+      if (aa)
+        i_render_done(&render);
       return 0;
     }
     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)");
+      if (aa)
+        i_render_done(&render);
+       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);
+      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) {
+          if (last_mode == ft_pixel_mode_grays &&
+              last_grays != 255) {
+            for (x = 0; x < slot->bitmap.width; ++x) 
+              bmp[x] = map[bmp[x]];
           }
-        }
-        bmp += slot->bitmap.pitch;
+          i_render_color(&render, tx + slot->bitmap_left, ty-slot->bitmap_top+y,
+                         slot->bitmap.width, bmp, cl);
+         bmp += slot->bitmap.pitch;
+       }
       }
     }
 
@@ -749,6 +753,9 @@ i_ft2_text(FT2_Fonthandle *handle, i_img *im, int tx, int ty, const i_color *cl,
     ty -= slot->advance.y / 64;
   }
 
+  if (aa)
+    i_render_done(&render);
+
   return 1;
 }