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[freetype2] master 5412d88: Introduce `FT_Size_InternalRec' structure.


From: Werner LEMBERG
Subject: [freetype2] master 5412d88: Introduce `FT_Size_InternalRec' structure.
Date: Sat, 22 Apr 2017 06:49:42 -0400 (EDT)

branch: master
commit 5412d8869b4b4c2df1c96298dc8d47b08cdb61b3
Author: Werner Lemberg <address@hidden>
Commit: Werner Lemberg <address@hidden>

    Introduce `FT_Size_InternalRec' structure.
    
    We are going to extend this later on.
    
    * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): New
    structure with a single field `module_data'.
    
    * src/base/ftobjs.c (FT_New_Size): Allocate `internal' field of
    `FT_Size' structure.
    
    * src/cff/cffgload.c (cff_builder_init, cff_decoder_prepare): Use
    `size->internal->module_data' instead of `size->internal'.
    
    * src/cff/cffobjs.c (cff_size_done): Deallocate `module_data'.
    (cff_size_init, cff_size_select, cff_size_request): Use
    `size->internal->module_data' instead of `size->internal'.
    
    * src/cif/cidobjs.c (cid_size_done, cid_size_init,
    cid_size_request): Use `size->internal->module_data' instead of
    `size->internal'.
    
    * src/psaux/psobjs.c (t1_builder_ini): Use
    `size->internal->module_data' instead of `size->internal'.
    
    * src/type1/t1objs.c (T1_Size_Done, T1_Size_Init, T1_Size_Request):
    Use `size->internal->module_data' instead of `size->internal'.
---
 ChangeLog                          | 29 +++++++++++++++++++++++++++++
 include/freetype/internal/ftobjs.h | 11 +++++------
 src/base/ftobjs.c                  |  8 ++++++--
 src/cff/cffgload.c                 |  6 ++++--
 src/cff/cffobjs.c                  | 14 ++++++--------
 src/cid/cidobjs.c                  | 10 +++++-----
 src/psaux/psobjs.c                 |  2 +-
 src/type1/t1objs.c                 | 13 +++++--------
 8 files changed, 61 insertions(+), 32 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 77b3a43..00ba418 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,32 @@
+2017-04-22  Werner Lemberg  <address@hidden>
+
+       Introduce `FT_Size_InternalRec' structure.
+
+       We are going to extend this later on.
+
+       * include/freetype/internal/ftobjs.h (FT_Size_InternalRec): New
+       structure with a single field `module_data'.
+
+       * src/base/ftobjs.c (FT_New_Size): Allocate `internal' field of
+       `FT_Size' structure.
+
+       * src/cff/cffgload.c (cff_builder_init, cff_decoder_prepare): Use
+       `size->internal->module_data' instead of `size->internal'.
+
+       * src/cff/cffobjs.c (cff_size_done): Deallocate `module_data'.
+       (cff_size_init, cff_size_select, cff_size_request): Use
+       `size->internal->module_data' instead of `size->internal'.
+
+       * src/cif/cidobjs.c (cid_size_done, cid_size_init,
+       cid_size_request): Use `size->internal->module_data' instead of
+       `size->internal'.
+
+       * src/psaux/psobjs.c (t1_builder_ini): Use
+       `size->internal->module_data' instead of `size->internal'.
+
+       * src/type1/t1objs.c (T1_Size_Done, T1_Size_Init, T1_Size_Request):
+       Use `size->internal->module_data' instead of `size->internal'.
+
 2017-04-21  Alexei Podtelezhnikov  <address@hidden>
 
        * src/smooth/ftsmooth.h: Remove unused guards and declaration.
diff --git a/include/freetype/internal/ftobjs.h 
b/include/freetype/internal/ftobjs.h
index 2f18d07..c8526e6 100644
--- a/include/freetype/internal/ftobjs.h
+++ b/include/freetype/internal/ftobjs.h
@@ -433,8 +433,6 @@ FT_BEGIN_HEADER
   } FT_GlyphSlot_InternalRec;
 
 
-#if 0
-
   /*************************************************************************/
   /*                                                                       */
   /* <Struct>                                                              */
@@ -442,18 +440,19 @@ FT_BEGIN_HEADER
   /*                                                                       */
   /* <Description>                                                         */
   /*    This structure contains the internal fields of each FT_Size        */
-  /*    object.  Currently, it's empty.                                    */
+  /*    object.                                                            */
+  /*                                                                       */
+  /* <Fields>                                                              */
+  /*    module_data :: Data specific to a driver module.                   */
   /*                                                                       */
   /*************************************************************************/
 
   typedef struct  FT_Size_InternalRec_
   {
-    /* empty */
+    void*  module_data;
 
   } FT_Size_InternalRec;
 
-#endif
-
 
   /*************************************************************************/
   /*************************************************************************/
diff --git a/src/base/ftobjs.c b/src/base/ftobjs.c
index a58c081..83d51c0 100644
--- a/src/base/ftobjs.c
+++ b/src/base/ftobjs.c
@@ -2605,6 +2605,8 @@
     FT_Size          size = NULL;
     FT_ListNode      node = NULL;
 
+    FT_Size_Internal  internal = NULL;
+
 
     if ( !face )
       return FT_THROW( Invalid_Face_Handle );
@@ -2627,8 +2629,10 @@
 
     size->face = face;
 
-    /* for now, do not use any internal fields in size objects */
-    size->internal = NULL;
+    if ( FT_NEW( internal ) )
+      goto Exit;
+
+    size->internal = internal;
 
     if ( clazz->init_size )
       error = clazz->init_size( size );
diff --git a/src/cff/cffgload.c b/src/cff/cffgload.c
index 9ead7d3..9408048 100644
--- a/src/cff/cffgload.c
+++ b/src/cff/cffgload.c
@@ -278,7 +278,8 @@
 
       if ( hinting && size )
       {
-        CFF_Internal  internal = (CFF_Internal)size->root.internal;
+        FT_Size       ftsize   = FT_SIZE( size );
+        CFF_Internal  internal = (CFF_Internal)ftsize->internal->module_data;
 
 
         if ( internal )
@@ -443,7 +444,8 @@
 
       if ( builder->hints_funcs && size )
       {
-        CFF_Internal  internal = (CFF_Internal)size->root.internal;
+        FT_Size       ftsize   = FT_SIZE( size );
+        CFF_Internal  internal = (CFF_Internal)ftsize->internal->module_data;
 
 
         /* for CFFs without subfonts, this value has already been set */
diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c
index ddcfdc9..6161393 100644
--- a/src/cff/cffobjs.c
+++ b/src/cff/cffobjs.c
@@ -54,9 +54,6 @@
   /*                                                                       */
   /*                            SIZE FUNCTIONS                             */
   /*                                                                       */
-  /*  Note that we store the global hints in the size's `internal' root    */
-  /*  field.                                                               */
-  /*                                                                       */
   /*************************************************************************/
 
 
@@ -80,10 +77,11 @@
   FT_LOCAL_DEF( void )
   cff_size_done( FT_Size  cffsize )        /* CFF_Size */
   {
+    FT_Memory     memory   = cffsize->face->memory;
     CFF_Size      size     = (CFF_Size)cffsize;
     CFF_Face      face     = (CFF_Face)size->root.face;
     CFF_Font      font     = (CFF_Font)face->extra.data;
-    CFF_Internal  internal = (CFF_Internal)cffsize->internal;
+    CFF_Internal  internal = (CFF_Internal)cffsize->internal->module_data;
 
 
     if ( internal )
@@ -103,7 +101,7 @@
           funcs->destroy( internal->subfonts[i - 1] );
       }
 
-      /* `internal' is freed by destroy_size (in ftobjs.c) */
+      FT_FREE( internal );
     }
   }
 
@@ -199,7 +197,7 @@
           goto Exit;
       }
 
-      cffsize->internal = (FT_Size_Internal)(void*)internal;
+      cffsize->internal->module_data = internal;
     }
 
     size->strike_index = 0xFFFFFFFFUL;
@@ -229,7 +227,7 @@
     {
       CFF_Face      face     = (CFF_Face)size->face;
       CFF_Font      font     = (CFF_Font)face->extra.data;
-      CFF_Internal  internal = (CFF_Internal)size->internal;
+      CFF_Internal  internal = (CFF_Internal)size->internal->module_data;
 
       FT_Long  top_upm  = (FT_Long)font->top_font.font_dict.units_per_em;
       FT_UInt  i;
@@ -301,7 +299,7 @@
     {
       CFF_Face      cffface  = (CFF_Face)size->face;
       CFF_Font      font     = (CFF_Font)cffface->extra.data;
-      CFF_Internal  internal = (CFF_Internal)size->internal;
+      CFF_Internal  internal = (CFF_Internal)size->internal->module_data;
 
       FT_Long  top_upm  = (FT_Long)font->top_font.font_dict.units_per_em;
       FT_UInt  i;
diff --git a/src/cid/cidobjs.c b/src/cid/cidobjs.c
index 7830e1f..ceda8ff 100644
--- a/src/cid/cidobjs.c
+++ b/src/cid/cidobjs.c
@@ -113,16 +113,16 @@
     CID_Size  size = (CID_Size)cidsize;
 
 
-    if ( cidsize->internal )
+    if ( cidsize->internal->module_data )
     {
       PSH_Globals_Funcs  funcs;
 
 
       funcs = cid_size_get_globals_funcs( size );
       if ( funcs )
-        funcs->destroy( (PSH_Globals)cidsize->internal );
+        funcs->destroy( (PSH_Globals)cidsize->internal->module_data );
 
-      cidsize->internal = NULL;
+      cidsize->internal->module_data = NULL;
     }
   }
 
@@ -145,7 +145,7 @@
 
       error = funcs->create( cidsize->face->memory, priv, &globals );
       if ( !error )
-        cidsize->internal = (FT_Size_Internal)(void*)globals;
+        cidsize->internal->module_data = globals;
     }
 
     return error;
@@ -164,7 +164,7 @@
     funcs = cid_size_get_globals_funcs( (CID_Size)size );
 
     if ( funcs )
-      funcs->set_scale( (PSH_Globals)size->internal,
+      funcs->set_scale( (PSH_Globals)size->internal->module_data,
                         size->metrics.x_scale,
                         size->metrics.y_scale,
                         0, 0 );
diff --git a/src/psaux/psobjs.c b/src/psaux/psobjs.c
index 0baf836..f04edea 100644
--- a/src/psaux/psobjs.c
+++ b/src/psaux/psobjs.c
@@ -1551,7 +1551,7 @@
       builder->current = &loader->current.outline;
       FT_GlyphLoader_Rewind( loader );
 
-      builder->hints_globals = size->internal;
+      builder->hints_globals = size->internal->module_data;
       builder->hints_funcs   = NULL;
 
       if ( hinting )
diff --git a/src/type1/t1objs.c b/src/type1/t1objs.c
index 5637035..97c16b0 100644
--- a/src/type1/t1objs.c
+++ b/src/type1/t1objs.c
@@ -49,9 +49,6 @@
   /*                                                                       */
   /*                            SIZE FUNCTIONS                             */
   /*                                                                       */
-  /*  note that we store the global hints in the size's "internal" root    */
-  /*  field                                                                */
-  /*                                                                       */
   /*************************************************************************/
 
 
@@ -77,16 +74,16 @@
     T1_Size  size = (T1_Size)t1size;
 
 
-    if ( size->root.internal )
+    if ( t1size->internal->module_data )
     {
       PSH_Globals_Funcs  funcs;
 
 
       funcs = T1_Size_Get_Globals_Funcs( size );
       if ( funcs )
-        funcs->destroy( (PSH_Globals)size->root.internal );
+        funcs->destroy( (PSH_Globals)t1size->internal->module_data );
 
-      size->root.internal = NULL;
+      t1size->internal->module_data = NULL;
     }
   }
 
@@ -108,7 +105,7 @@
       error = funcs->create( size->root.face->memory,
                              &face->type1.private_dict, &globals );
       if ( !error )
-        size->root.internal = (FT_Size_Internal)(void*)globals;
+        t1size->internal->module_data = globals;
     }
 
     return error;
@@ -126,7 +123,7 @@
     FT_Request_Metrics( size->root.face, req );
 
     if ( funcs )
-      funcs->set_scale( (PSH_Globals)size->root.internal,
+      funcs->set_scale( (PSH_Globals)t1size->internal->module_data,
                         size->root.metrics.x_scale,
                         size->root.metrics.y_scale,
                         0, 0 );



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