don't try to load kerning information when only checking for a working size to load
authorblub <blub@d7cf8633-e32d-0410-b094-e92efae38249>
Sun, 24 Jan 2010 13:09:13 +0000 (13:09 +0000)
committerblub <blub@d7cf8633-e32d-0410-b094-e92efae38249>
Sun, 24 Jan 2010 13:09:13 +0000 (13:09 +0000)
git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@9842 d7cf8633-e32d-0410-b094-e92efae38249

ft2.c

diff --git a/ft2.c b/ft2.c
index e983fc6..d1974f5 100644 (file)
--- a/ft2.c
+++ b/ft2.c
@@ -322,7 +322,7 @@ float Font_SnapTo(float val, float snapwidth)
 }
 
 static qboolean Font_LoadFile(const char *name, int _face, ft2_font_t *font);
-static qboolean Font_LoadSize(ft2_font_t *font, float size, qboolean no_texture, qboolean no_kerning);
+static qboolean Font_LoadSize(ft2_font_t *font, float size, qboolean check_only);
 qboolean Font_LoadFont(const char *name, dp_font_t *dpfnt)
 {
        int s, count, i;
@@ -380,7 +380,7 @@ qboolean Font_LoadFont(const char *name, dp_font_t *dpfnt)
                count = 0;
                for (s = 0; s < MAX_FONT_SIZES && dpfnt->req_sizes[s] >= 0; ++s)
                {
-                       if (Font_LoadSize(fb, Font_VirtualToRealSize(dpfnt->req_sizes[s]), true, false))
+                       if (Font_LoadSize(fb, Font_VirtualToRealSize(dpfnt->req_sizes[s]), true))
                                ++count;
                }
                if (!count)
@@ -407,7 +407,7 @@ qboolean Font_LoadFont(const char *name, dp_font_t *dpfnt)
        count = 0;
        for (s = 0; s < MAX_FONT_SIZES && dpfnt->req_sizes[s] >= 0; ++s)
        {
-               if (Font_LoadSize(ft2, Font_VirtualToRealSize(dpfnt->req_sizes[s]), false, false))
+               if (Font_LoadSize(ft2, Font_VirtualToRealSize(dpfnt->req_sizes[s]), false))
                        ++count;
        }
        if (!count)
@@ -514,8 +514,9 @@ static qboolean Font_LoadFile(const char *name, int _face, ft2_font_t *font)
        return true;
 }
 
+static float Font_SearchSize(ft2_font_t *font, FT_Face fontface, float size);
 static qboolean Font_LoadMap(ft2_font_t *font, ft2_font_map_t *mapstart, Uchar _ch, ft2_font_map_t **outmap);
-static qboolean Font_LoadSize(ft2_font_t *font, float size, qboolean no_texture, qboolean no_kerning)
+static qboolean Font_LoadSize(ft2_font_t *font, float size, qboolean check_only)
 {
        int map_index;
        ft2_font_map_t *fmap, temp;
@@ -528,69 +529,72 @@ static qboolean Font_LoadSize(ft2_font_t *font, float size, qboolean no_texture,
        if (size < 2) // bogus sizes are not allowed - and they screw up our allocations
                return false;
 
-       if (!no_texture)
+       for (map_index = 0; map_index < MAX_FONT_SIZES; ++map_index)
        {
-               for (map_index = 0; map_index < MAX_FONT_SIZES; ++map_index)
-               {
-                       if (!font->font_maps[map_index])
-                               break;
-                       // if a similar size has already been loaded, ignore this one
-                       //abs(font->font_maps[map_index]->size - size) < 4
-                       if (font->font_maps[map_index]->size == size)
-                               return true;
-               }
+               if (!font->font_maps[map_index])
+                       break;
+               // if a similar size has already been loaded, ignore this one
+               //abs(font->font_maps[map_index]->size - size) < 4
+               if (font->font_maps[map_index]->size == size)
+                       return true;
+       }
 
-               if (map_index >= MAX_FONT_SIZES)
-                       return false;
+       if (map_index >= MAX_FONT_SIZES)
+               return false;
 
-               memset(&temp, 0, sizeof(temp));
-               temp.size = size;
-               temp.glyphSize = CeilPowerOf2(size*2);
-               temp.sfx = (1.0/64.0)/(double)size;
-               temp.sfy = (1.0/64.0)/(double)size;
-               temp.intSize = -1; // negative value: LoadMap must search now :)
-               if (!Font_LoadMap(font, &temp, 0, &fmap))
-               {
-                       Con_Printf("ERROR: can't load the first character map for %s\n"
-                                  "This is fatal\n",
-                                  font->name);
-                       Font_UnloadFont(font);
-                       return false;
-               }
-               font->font_maps[map_index] = temp.next;
+       if (check_only) {
+               FT_Face fontface;
+               if (font->image_font)
+                       fontface = (FT_Face)font->next->face;
+               else
+                       fontface = (FT_Face)font->face;
+               return (Font_SearchSize(font, fontface, size) > 0);
+       }
 
-               fmap->sfx = temp.sfx;
-               fmap->sfy = temp.sfy;
+       memset(&temp, 0, sizeof(temp));
+       temp.size = size;
+       temp.glyphSize = CeilPowerOf2(size*2);
+       temp.sfx = (1.0/64.0)/(double)size;
+       temp.sfy = (1.0/64.0)/(double)size;
+       temp.intSize = -1; // negative value: LoadMap must search now :)
+       if (!Font_LoadMap(font, &temp, 0, &fmap))
+       {
+               Con_Printf("ERROR: can't load the first character map for %s\n"
+                          "This is fatal\n",
+                          font->name);
+               Font_UnloadFont(font);
+               return false;
        }
-       if (!no_kerning)
+       font->font_maps[map_index] = temp.next;
+
+       fmap->sfx = temp.sfx;
+       fmap->sfy = temp.sfy;
+
+       // load the default kerning vector:
+       if (font->has_kerning)
        {
-               // load the default kerning vector:
-               if (font->has_kerning)
+               Uchar l, r;
+               FT_Vector kernvec;
+               for (l = 0; l < 256; ++l)
                {
-                       Uchar l, r;
-                       FT_Vector kernvec;
-                       for (l = 0; l < 256; ++l)
+                       for (r = 0; r < 256; ++r)
                        {
-                               for (r = 0; r < 256; ++r)
+                               FT_ULong ul, ur;
+                               ul = qFT_Get_Char_Index(font->face, l);
+                               ur = qFT_Get_Char_Index(font->face, r);
+                               if (qFT_Get_Kerning(font->face, ul, ur, FT_KERNING_DEFAULT, &kernvec))
+                               {
+                                       fmap->kerning.kerning[l][r][0] = 0;
+                                       fmap->kerning.kerning[l][r][1] = 0;
+                               }
+                               else
                                {
-                                       FT_ULong ul, ur;
-                                       ul = qFT_Get_Char_Index(font->face, l);
-                                       ur = qFT_Get_Char_Index(font->face, r);
-                                       if (qFT_Get_Kerning(font->face, ul, ur, FT_KERNING_DEFAULT, &kernvec))
-                                       {
-                                               fmap->kerning.kerning[l][r][0] = 0;
-                                               fmap->kerning.kerning[l][r][1] = 0;
-                                       }
-                                       else
-                                       {
-                                               fmap->kerning.kerning[l][r][0] = Font_SnapTo((kernvec.x / 64.0) / fmap->size, 1 / fmap->size);
-                                               fmap->kerning.kerning[l][r][1] = Font_SnapTo((kernvec.y / 64.0) / fmap->size, 1 / fmap->size);
-                                       }
+                                       fmap->kerning.kerning[l][r][0] = Font_SnapTo((kernvec.x / 64.0) / fmap->size, 1 / fmap->size);
+                                       fmap->kerning.kerning[l][r][1] = Font_SnapTo((kernvec.y / 64.0) / fmap->size, 1 / fmap->size);
                                }
                        }
                }
        }
-
        return true;
 }
 
@@ -782,6 +786,27 @@ void Font_UnloadFont(ft2_font_t *font)
        }
 }
 
+static float Font_SearchSize(ft2_font_t *font, FT_Face fontface, float size)
+{
+       float intSize = size;
+       while (1)
+       {
+               if (!Font_SetSize(font, intSize, intSize))
+               {
+                       Con_Printf("ERROR: can't set size for font %s: %f ((%f))\n", font->name, size, intSize);
+                       return -1;
+               }
+               if ((fontface->size->metrics.height>>6) <= size)
+                       return intSize;
+               if (intSize < 2)
+               {
+                       Con_Printf("ERROR: no appropriate size found for font %s: %f\n", font->name, size);
+                       return -1;
+               }
+               --intSize;
+       }
+}
+
 static qboolean Font_LoadMap(ft2_font_t *font, ft2_font_map_t *mapstart, Uchar _ch, ft2_font_map_t **outmap)
 {
        char map_identifier[MAX_QPATH];
@@ -858,6 +883,7 @@ static qboolean Font_LoadMap(ft2_font_t *font, ft2_font_map_t *mapstart, Uchar _
                mapstart->intSize = mapstart->size;
        if (mapstart->intSize < 0)
        {
+               /*
                mapstart->intSize = mapstart->size;
                while (1)
                {
@@ -875,6 +901,9 @@ static qboolean Font_LoadMap(ft2_font_t *font, ft2_font_map_t *mapstart, Uchar _
                        }
                        --mapstart->intSize;
                }
+               */
+               if ((mapstart->intSize = Font_SearchSize(font, fontface, mapstart->size)) <= 0)
+                       return false;
                Con_DPrintf("Using size: %f for requested size %f\n", mapstart->intSize, mapstart->size);
        }