[freetype2] ewaldhew-cleaned ad9957d 35/40: [cid] Add Adobe engine config.

[Hew Yih Shiuan Ewald]

branch: ewaldhew-cleaned
commit ad9957d787c6baaa925063f8b81bcac4f78a36fe
Author: Ewald Hew <address@hidden>
Commit: Ewald Hew <address@hidden>

    [cid] Add Adobe engine config.
    
    This is similar to what was done in the type1 module.
    
    * src/cid/cidriver.c: Update declaration.
    * src/cid/cidobjs.c (cid_driver_init): Added.
---
 src/cid/cidobjs.c  | 34 ++++++++++++++++++++++++++++++++--
 src/cid/cidriver.c |  2 +-
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/src/cid/cidobjs.c b/src/cid/cidobjs.c
index ceda8ff..52c6438 100644
--- a/src/cid/cidobjs.c
+++ b/src/cid/cidobjs.c
@@ -26,6 +26,7 @@
 #include FT_SERVICE_POSTSCRIPT_CMAPS_H
 #include FT_INTERNAL_POSTSCRIPT_AUX_H
 #include FT_INTERNAL_POSTSCRIPT_HINTS_H
+#include FT_TYPE1_DRIVER_H
 
 #include "ciderrs.h"
 
@@ -463,9 +464,38 @@
   /*    FreeType error code.  0 means success.                             */
   /*                                                                       */
   FT_LOCAL_DEF( FT_Error )
-  cid_driver_init( FT_Module  driver )
+  cid_driver_init( FT_Module  module )
   {
-    FT_UNUSED( driver );
+    PS_Driver  driver = (PS_Driver)module;
+
+    FT_UInt32  seed;
+
+
+    /* set default property values, cf. `ftcffdrv.h' */
+    driver->hinting_engine = FT_T1_HINTING_ADOBE;
+
+    driver->no_stem_darkening = TRUE;
+
+    driver->darken_params[0] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1;
+    driver->darken_params[1] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1;
+    driver->darken_params[2] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2;
+    driver->darken_params[3] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2;
+    driver->darken_params[4] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3;
+    driver->darken_params[5] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3;
+    driver->darken_params[6] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4;
+    driver->darken_params[7] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4;
+
+    /* compute random seed from some memory addresses */
+    seed = (FT_UInt32)( (FT_Offset)(char*)&seed          ^
+                        (FT_Offset)(char*)&module        ^
+                        (FT_Offset)(char*)module->memory );
+    seed = seed ^ ( seed >> 10 ) ^ ( seed >> 20 );
+
+    driver->random_seed = (FT_Int32)seed;
+    if ( driver->random_seed < 0 )
+      driver->random_seed = -driver->random_seed;
+    else if ( driver->random_seed == 0 )
+      driver->random_seed = 123456789;
 
     return FT_Err_Ok;
   }
diff --git a/src/cid/cidriver.c b/src/cid/cidriver.c
index bb611a9..c7d42f9 100644
--- a/src/cid/cidriver.c
+++ b/src/cid/cidriver.c
@@ -200,7 +200,7 @@
       FT_MODULE_FONT_DRIVER       |
       FT_MODULE_DRIVER_SCALABLE   |
       FT_MODULE_DRIVER_HAS_HINTER,
-      sizeof ( FT_DriverRec ),
+      sizeof ( PS_DriverRec ),
 
       "t1cid",   /* module name           */
       0x10000L,  /* version 1.0 of driver */