[freetype2] anuj-distance-field 531d51e 58/93: [sdf] Added total memory allocation log.

[Anuj Verma]

branch: anuj-distance-field
commit 531d51eb2a95ca5b230a9bc5bde41a8b0cafd3de
Author: Anuj Verma <anujv@iitbhilai.ac.in>
Commit: anujverma <anujv@iitbhilai.ac.in>

    [sdf] Added total memory allocation log.
    
    * src/sdf/ftsdf.c (*): Replaced `FT_QNEW' and `FT_ALLOC_MULT'
      to custom macros in order to track memory allocations
      throughout the process of generating SDF. It basically
      add the memory being allocated to a static global variable
      and at the end outputs it at the end.
---
 [GSoC]ChangeLog | 10 ++++++++++
 src/sdf/ftsdf.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 60 insertions(+), 4 deletions(-)

diff --git a/[GSoC]ChangeLog b/[GSoC]ChangeLog
index 120215b..8f1187c 100644
--- a/[GSoC]ChangeLog
+++ b/[GSoC]ChangeLog
@@ -1,3 +1,13 @@
+2020-07-16  Anuj Verma  <anujv@iitbhilai.ac.in>
+
+       [sdf] Added total memory allocation log.
+
+       * src/sdf/ftsdf.c (*): Replaced `FT_QNEW' and `FT_ALLOC_MULT'
+         to custom macros in order to track memory allocations
+         throughout the process of generating SDF. It basically
+         add the memory being allocated to a static global variable
+         and at the end outputs it at the end.
+
 2020-07-15  Anuj Verma  <anujv@iitbhilai.ac.in>
 
        * src/sdf/ftsdfrend.c (sdf_property_set): Minor fix.
diff --git a/src/sdf/ftsdf.c b/src/sdf/ftsdf.c
index f8e6f60..15d5648 100644
--- a/src/sdf/ftsdf.c
+++ b/src/sdf/ftsdf.c
@@ -8,6 +8,48 @@
 
   /**************************************************************************
    *
+   * macros to track intermediate memory allocations
+   *
+   */
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+
+  /* These macros are used to track and output the total */
+  /* memory allocation once the SDF is generated.        */
+
+  static FT_Long  s_total_memory_allocated;
+  
+  #define SDF_MEM_TRACK_START()  s_total_memory_allocated = 0
+
+  #define SDF_MEM_TRACK_END()                                          \
+            FT_TRACE0(( "[sdf] Total intermediate memory allocated = " \
+                        "%ld bytes\n", s_total_memory_allocated ));    \
+                        s_total_memory_allocated = 0
+
+  /* We only use these two macros to allocate memory in  */
+  /* the module.                                         */
+
+  #define SDF_ALLOC_MULT( ptr, count, item_size )                      \
+            s_total_memory_allocated += count * item_size,             \
+            FT_ALLOC_MULT( ptr, count, item_size )
+
+  #define SDF_QNEW( ptr )                                              \
+            s_total_memory_allocated += sizeof( *ptr ),                \
+            !FT_QNEW( ptr )
+#else
+
+  #define SDF_MEM_TRACK_START()
+  #define SDF_MEM_TRACK_END()
+
+  #define SDF_ALLOC_MULT( ptr, count, item_size )                      \
+            FT_ALLOC_MULT( ptr, count, item_size )
+
+  #define SDF_QNEW( ptr ) !FT_QNEW( ptr )
+
+#endif
+
+  /**************************************************************************
+   *
    * definitions
    *
    */
@@ -237,7 +279,7 @@
       goto Exit;
     }
 
-    if ( !FT_QNEW( ptr ) )
+    if ( SDF_QNEW( ptr ) )
     {
       *ptr = null_edge;
       *edge = ptr;
@@ -274,7 +316,7 @@
       goto Exit;
     }
 
-    if ( !FT_QNEW( ptr ) )
+    if ( SDF_QNEW( ptr ) )
     {
       *ptr = null_contour;
       *contour = ptr;
@@ -326,7 +368,7 @@
       goto Exit;
     }
 
-    if ( !FT_QNEW( ptr ) )
+    if ( SDF_QNEW( ptr ) )
     {
       *ptr = null_shape;
       ptr->memory = memory;
@@ -2589,7 +2631,7 @@
     rows     = bitmap->rows;
     buffer   = (FT_Short*)bitmap->buffer;
 
-    if ( FT_ALLOC_MULT( dists, width, rows * sizeof(*dists) ) )
+    if ( SDF_ALLOC_MULT( dists, width, rows * sizeof(*dists) ) )
       goto Exit;
 
     FT_MEM_ZERO( dists, width * rows * sizeof(*dists) );
@@ -3067,6 +3109,8 @@
     SDF_Params                internal_params;
 
 
+    SDF_MEM_TRACK_START();
+
     /* check for valid arguments */
     if ( !sdf_raster || !sdf_params )
     {
@@ -3150,6 +3194,8 @@
     if ( shape )
       sdf_shape_done( &shape );
 
+    SDF_MEM_TRACK_END();
+
   Exit:
     return error;
   }